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, MINGW32 with MSYS.
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([-Wredundant-decls]) # Prefer this, as we don't use Bison.
886 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
887 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
888 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
889 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
890 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
891 gl_WARN_ADD([-Wno-format-nonliteral])
893 # In spite of excluding -Wlogical-op above, it is enabled, as of
894 # gcc 4.5.0 20090517.
895 gl_WARN_ADD([-Wno-logical-op])
897 # More things that clang is unduly picky about.
898 if test $emacs_cv_clang = yes; then
899 gl_WARN_ADD([-Wno-format-extra-args])
900 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
901 gl_WARN_ADD([-Wno-unused-command-line-argument])
902 gl_WARN_ADD([-Wno-unused-value])
905 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
906 AH_VERBATIM([FORTIFY_SOURCE],
907 [/* Enable compile-time and run-time bounds-checking, and some warnings,
908 without upsetting glibc 2.15+. */
909 #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
910 # define _FORTIFY_SOURCE 2
913 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
915 # We use a slightly smaller set of warning options for lib/.
916 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
918 nw="$nw -Wunused-macros"
920 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
921 AC_SUBST([GNULIB_WARN_CFLAGS])
931 AC_ARG_ENABLE(link-time-optimization,
932 [AS_HELP_STRING([--enable-link-time-optimization],
933 [build emacs with link-time optimization.
934 This requires GCC 4.5.0 or later, or clang.
935 (Note that clang support is experimental - see INSTALL.)
936 It also makes Emacs harder to debug, and when we tried it
937 with GCC 4.9.0 x86-64 it made Emacs slower, so it's not
938 recommended for typical use.])],
939 if test "${enableval}" != "no"; then
941 if test $emacs_cv_clang = yes; then
942 AC_MSG_CHECKING([whether link-time optimization is supported by clang])
943 GOLD_PLUGIN=`$CC -print-file-name=LLVMgold.so 2>/dev/null`
944 if test -x "$GOLD_PLUGIN"; then
947 elif test x$GCC = xyes; then
948 AC_MSG_CHECKING([whether link-time optimization is supported by gcc])
949 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
950 if test x$CPUS != x; then
956 AC_MSG_ERROR([Link-time optimization is not supported with your compiler.])
958 if test -z "$LTO"; then
962 CFLAGS="$CFLAGS $LTO"
963 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
964 [ac_lto_supported=yes], [ac_lto_supported=no])
967 AC_MSG_RESULT([$ac_lto_supported])
968 if test "$ac_lto_supported" = "yes"; then
969 CFLAGS="$CFLAGS $LTO"
970 if test x$emacs_cv_clang = xyes; then
971 AC_MSG_WARN([Please read INSTALL before using link-time optimization with clang])
972 # WARNING: 'ar --plugin ...' doesn't work without
973 # command, so plugin name is appended to ARFLAGS.
974 ARFLAGS="cru --plugin $GOLD_PLUGIN"
975 RANLIB="$RANLIB --plugin $GOLD_PLUGIN"
977 dnl The following is needed for GCC 4.9.0. The GCC 4.9.0 release notes
978 dnl suggest that instead of -ffat-lto-objects we should use gcc-ar and
979 dnl gcc-ranlib in place of ar and ranlib, but gcc-ar makes /usr/bin/ar
980 dnl dump core on Fedora 20, so play it safe for now.
981 gl_COMPILER_OPTION_IF([-ffat-lto-objects],
982 [CFLAGS="$CFLAGS -ffat-lto-objects"])
987 dnl Some other nice autoconf tests.
988 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
991 dnl if test "x$RANLIB" = x; then
996 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
997 dnl can be made to directories. This is not relevant for our usage, and
998 dnl excludes some cases that work fine for us. Eg MS Windows or files
999 dnl hosted on AFS, both examples where simple links work, but links to
1000 dnl directories fail. We use a cut-down version instead.
1003 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
1004 rm -f conf$$ conf$$.file
1006 LN_S_FILEONLY='cp -p'
1008 dnl On MinGW, ensure we will call the MSYS /bin/ln.exe, not some
1009 dnl random program in the current directory.
1010 if (echo >conf$$.file) 2>/dev/null; then
1011 if ln -s conf$$.file conf$$ 2>/dev/null; then
1012 if test "$opsys" = "mingw32"; then
1013 LN_S_FILEONLY='/bin/ln -s'
1015 LN_S_FILEONLY='ln -s'
1017 elif ln conf$$.file conf$$ 2>/dev/null; then
1018 if test "$opsys" = "mingw32"; then
1019 LN_S_FILEONLY=/bin/ln
1026 rm -f conf$$ conf$$.file
1028 if test "$LN_S_FILEONLY" = "ln -s"; then
1029 AC_MSG_RESULT([yes])
1031 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
1034 AC_SUBST(LN_S_FILEONLY)
1037 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
1038 dnl doesn't support links to directories, as in "ln file dir". But that
1039 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
1040 dnl executables at "make install" time.
1041 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
1042 dnl for more details.
1043 if test "$opsys" = "mingw32"; then
1047 dnl On some Debian versions, "install-info" prints irritating messages
1048 dnl "This is not dpkg install-info anymore, but GNU install-info"
1049 dnl if called via an absolute file name.
1050 dnl Use the entirely-identical-but-quieter ginstall-info instead if present.
1051 dnl Sadly some people may have an old ginstall-info installed on
1052 dnl non-Debian systems, so we can't use this.
1053 dnl AC_PATH_PROGS(INSTALL_INFO, [ginstall-info install-info], :,
1054 dnl $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1056 AC_PATH_PROG(INSTALL_INFO, install-info, :,
1057 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1058 dnl Don't use GZIP, which is used by gzip for additional parameters.
1059 AC_PATH_PROG(GZIP_PROG, gzip)
1061 test $with_compress_install != yes && test -n "$GZIP_PROG" && \
1062 GZIP_PROG=" # $GZIP_PROG # (disabled by configure --without-compress-install)"
1064 if test $opsys = gnu-linux; then
1065 AC_PATH_PROG(PAXCTL, paxctl,,
1066 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
1067 if test "X$PAXCTL" != X; then
1068 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
1069 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1070 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
1071 else AC_MSG_RESULT(no); PAXCTL=""; fi])
1074 if test "${SETFATTR+set}" != set; then
1075 AC_CACHE_CHECK([for setfattr],
1076 [emacs_cv_prog_setfattr],
1078 if (setfattr -n user.pax.flags conftest.tmp) >/dev/null 2>&1; then
1079 emacs_cv_prog_setfattr=yes
1081 emacs_cv_prog_setfattr=no
1083 if test "$emacs_cv_prog_setfattr" = yes; then
1089 AC_SUBST([SETFATTR])
1093 ## Need makeinfo >= 4.7 (?) to build the manuals.
1094 AC_PATH_PROG(MAKEINFO, makeinfo, no)
1095 dnl By this stage, configure has already checked for egrep and set EGREP,
1096 dnl or exited with an error if no egrep was found.
1097 if test "$MAKEINFO" != "no"; then
1099 $MAKEINFO --version 2> /dev/null |
1100 $EGREP 'texinfo[[^0-9]]*([[1-4]][[0-9]]+|[[5-9]]|4\.[[7-9]]|4\.[[1-6]][[0-9]]+)'
1106 ## Makeinfo is unusual. For a released Emacs, the manuals are
1107 ## pre-built, and not deleted by the normal clean rules. makeinfo is
1108 ## therefore in the category of "special tools" not normally required, which
1109 ## configure does not have to check for (eg autoconf itself).
1110 ## In a repository checkout on the other hand, the manuals are not included.
1111 ## So makeinfo is a requirement to build from the repository, and configure
1112 ## should test for it as it does for any other build requirement.
1113 ## We use the presence of $srcdir/info/emacs to distinguish a release,
1114 ## with pre-built manuals, from a repository checkout.
1117 if test "$MAKEINFO" = "no"; then
1119 if test "x${with_makeinfo}" = "xno"; then
1121 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
1122 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
1123 source tree does not seem to have pre-built manuals in the `info' directory.
1124 Either install a suitable version of makeinfo, or re-run configure
1125 with the `--without-makeinfo' option to build without the manuals.] )
1128 AC_SUBST(HAVE_MAKEINFO)
1130 if test $opsys = mingw32; then
1131 DOCMISC_W32=efaq-w32
1135 AC_SUBST(DOCMISC_W32)
1137 dnl Add our options to ac_link now, after it is set up.
1139 if test x$GCC = xyes; then
1140 test "x$GCC_LINK_TEST_OPTIONS" != x && \
1141 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1143 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
1144 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1147 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
1148 dnl If we can link with the flag, it shouldn't do any harm anyhow.
1149 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
1150 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
1151 dnl if not built to support GNU ld.
1153 dnl For a long time, -znocombreloc was added to LDFLAGS rather than
1154 dnl LD_SWITCH_SYSTEM_TEMACS. That is:
1155 dnl * inappropriate, as LDFLAGS is a user option but this is essential.
1156 dnl Eg "make LDFLAGS=... all" could run into problems,
1157 dnl http://bugs.debian.org/684788
1158 dnl * unnecessary, since temacs is the only thing that actually needs it.
1159 dnl Indeed this is where it was originally, prior to:
1160 dnl http://lists.gnu.org/archive/html/emacs-pretest-bug/2004-03/msg00170.html
1161 late_LDFLAGS="$LDFLAGS"
1162 if test x$GCC = xyes; then
1163 LDFLAGS_NOCOMBRELOC="-Wl,-znocombreloc"
1165 LDFLAGS_NOCOMBRELOC="-znocombreloc"
1168 LDFLAGS="$LDFLAGS $LDFLAGS_NOCOMBRELOC"
1170 AC_MSG_CHECKING([for -znocombreloc])
1171 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1172 [AC_MSG_RESULT(yes)],
1173 LDFLAGS_NOCOMBRELOC=
1174 [AC_MSG_RESULT(no)])
1176 LDFLAGS="$late_LDFLAGS"
1178 AC_CACHE_CHECK([whether addresses are sanitized],
1179 [emacs_cv_sanitize_address],
1182 [[#ifndef __has_feature
1183 #define __has_feature(f) 0
1185 #if defined __SANITIZE_ADDRESS__ || __has_feature (address_sanitizer)
1187 error "Addresses are not sanitized.";
1190 [emacs_cv_sanitize_address=yes],
1191 [emacs_cv_sanitize_address=no])])
1193 dnl The function dump-emacs will not be defined and temacs will do
1194 dnl (load "loadup") automatically unless told otherwise.
1195 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
1197 your-opsys-here) CANNOT_DUMP=yes ;;
1200 if test "$CANNOT_DUMP" = "yes"; then
1201 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1202 elif test "$emacs_cv_sanitize_address" = yes; then
1203 AC_MSG_WARN([[Addresses are sanitized; suggest CANNOT_DUMP=yes]])
1206 AC_SUBST(CANNOT_DUMP)
1209 UNEXEC_OBJ=unexelf.o
1211 # MSDOS uses unexcoff.o
1213 UNEXEC_OBJ=unexaix.o
1219 UNEXEC_OBJ=unexmacosx.o
1222 UNEXEC_OBJ=unexhp9k800.o
1225 UNEXEC_OBJ=unexw32.o
1228 # Use the Solaris dldump() function, called from unexsol.c, to dump
1229 # emacs, instead of the generic ELF dump code found in unexelf.c.
1230 # The resulting binary has a complete symbol table, and is better
1231 # for debugging and other observability tools (debuggers, pstack, etc).
1233 # If you encounter a problem using dldump(), please consider sending
1234 # a message to the OpenSolaris tools-linking mailing list:
1235 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1237 # It is likely that dldump() works with older Solaris too, but this has
1238 # not been tested, so for now this change is for Solaris 10 or newer.
1239 UNEXEC_OBJ=unexsol.o
1246 ## Let `ld' find image libs and similar things in /usr/local/lib.
1247 ## The system compiler, GCC, has apparently been modified to not
1248 ## look there, contrary to what a stock GCC would do.
1249 ### It's not our place to do this. See bug#10313#17.
1250 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1255 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1256 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1260 ### It's not our place to do this. See bug#10313#17.
1261 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1266 ## Han Boetes <han@boetes.org> says this is necessary,
1267 ## otherwise Emacs dumps core on elf systems.
1268 LD_SWITCH_SYSTEM="-Z"
1271 AC_SUBST(LD_SWITCH_SYSTEM)
1273 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1275 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1276 ## which has not been defined yet. When this was handled with cpp,
1277 ## it was expanded to null when configure sourced the s/*.h file.
1278 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1279 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1280 ## (or somesuch), but because it is supposed to go at the _front_
1281 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1282 ## Compare with the gnu-linux case below, which added to the end
1283 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1284 ## LD_SWITCH_SYSTEM_TEMACS.
1287 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1294 AC_CHECK_DECL([__ELF__])
1295 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1296 ## With ELF, make sure that all common symbols get allocated to in the
1297 ## data section. Otherwise, the dump of temacs may miss variables in
1298 ## the shared library that have been initialized. For example, with
1299 ## GNU libc, __malloc_initialized would normally be resolved to the
1300 ## shared library's .bss section, which is fatal.
1301 if test "x$GCC" = "xyes"; then
1302 C_SWITCH_MACHINE="-fno-common"
1304 AC_MSG_ERROR([Non-GCC compilers are not supported.])
1307 dnl This was the unexalpha.c case. Removed in 24.1, 2010-07-24,
1308 dnl albeit under the mistaken assumption that said file
1309 dnl was no longer used.
1310 AC_MSG_ERROR([Non-ELF systems are not supported since Emacs 24.1.])
1314 AC_SUBST(C_SWITCH_MACHINE)
1316 AC_SUBST(UNEXEC_OBJ)
1319 ## Some programs in src produce warnings saying certain subprograms
1320 ## are too complex and need a MAXMEM value greater than 2000 for
1321 ## additional optimization. --nils@exp-math.uni-essen.de
1322 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1323 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1324 if test "$opsys" = "mingw32"; then
1325 case "$canonical" in
1326 x86_64-*-mingw*) C_SWITCH_SYSTEM="-mtune=generic" ;;
1327 *) C_SWITCH_SYSTEM="-mtune=pentium4" ;;
1330 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1331 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1332 AC_SUBST(C_SWITCH_SYSTEM)
1337 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1338 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1340 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1342 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1344 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1346 ## Motif needs -lgen.
1347 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1350 AC_SUBST(LIBS_SYSTEM)
1352 ### Make sure subsequent tests use flags consistent with the build flags.
1354 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1355 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1357 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1360 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C99 or better.
1361 AC_DEFUN([AC_TYPE_SIZE_T])
1362 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1363 AC_DEFUN([AC_TYPE_UID_T])
1365 # sqrt and other floating-point functions such as fmod and frexp
1366 # are found in -lm on many systems.
1368 AC_SEARCH_LIBS([sqrt], [m])
1369 if test "X$LIBS" = "X$OLD_LIBS"; then
1372 LIB_MATH=$ac_cv_search_sqrt
1376 dnl Current possibilities handled by sed (aix4-2 -> aix,
1377 dnl gnu-linux -> gnu/linux, etc.):
1378 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1379 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1380 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1387 ## Adding -lm confuses the dynamic linker, so omit it.
1390 freebsd | dragonfly )
1391 SYSTEM_TYPE=berkeley-unix
1393 gnu-linux | gnu-kfreebsd )
1395 hpux10-20 | hpux11 )
1399 SYSTEM_TYPE=windows-nt
1401 dnl NB this may be adjusted below.
1403 SYSTEM_TYPE=berkeley-unix
1407 SYSTEM_TYPE=usg-unix-v
1413 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1414 [The type of system you are compiling for; sets `system-type'.])
1417 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1418 pre_PKG_CONFIG_LIBS=$LIBS
1420 PKG_PROG_PKG_CONFIG(0.9.0)
1422 dnl EMACS_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4)
1423 dnl acts like PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4,
1424 dnl HAVE_GSTUFF=yes, HAVE_GSTUFF=no) -- see pkg-config man page --
1425 dnl except that it postprocesses CFLAGS as needed for --enable-gcc-warnings.
1426 dnl EMACS_CHECK_MODULES accepts optional 3rd and 4th arguments that
1427 dnl can take the place of the default HAVE_GSTUFF=yes and HAVE_GSTUFF=no
1429 AC_DEFUN([EMACS_CHECK_MODULES],
1430 [PKG_CHECK_MODULES([$1], [$2],
1431 [$1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1432 m4_default([$3], [HAVE_$1=yes])],
1433 [m4_default([$4], [HAVE_$1=no])])])
1436 if test "${with_sound}" != "no"; then
1437 # Sound support for GNU/Linux, the free BSDs, and MinGW.
1438 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h],
1439 have_sound_header=yes, [], [
1441 #define WIN32_LEAN_AND_MEAN
1442 #include <windows.h>
1445 test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
1446 AC_MSG_ERROR([OSS sound support requested but not found.])
1448 if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
1449 # Emulation library used on NetBSD.
1450 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1451 test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
1452 AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
1453 dnl FIXME? If we did find ossaudio, should we set with_sound=bsd-ossaudio?
1454 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1458 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1460 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1461 EMACS_CHECK_MODULES([ALSA], [$ALSA_MODULES])
1462 if test $HAVE_ALSA = yes; then
1463 SAVE_CFLAGS="$CFLAGS"
1465 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1466 LIBS="$ALSA_LIBS $LIBS"
1467 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1468 emacs_alsa_normal=yes,
1469 emacs_alsa_normal=no)
1470 if test "$emacs_alsa_normal" != yes; then
1471 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1472 [[snd_lib_error_set_handler (0);]])],
1473 emacs_alsa_subdir=yes,
1474 emacs_alsa_subdir=no)
1475 if test "$emacs_alsa_subdir" != yes; then
1476 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1478 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1481 CFLAGS="$SAVE_CFLAGS"
1483 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1484 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1485 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1486 elif test "${with_sound}" = "alsa"; then
1487 AC_MSG_ERROR([ALSA sound support requested but not found.])
1489 fi dnl with_sound = alsa|yes
1491 dnl Define HAVE_SOUND if we have sound support. We know it works and
1492 dnl compiles only on the specified platforms. For others, it
1493 dnl probably doesn't make sense to try.
1494 dnl FIXME So surely we should bypass this whole section if not using
1495 dnl one of these platforms?
1496 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1498 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1499 dnl Adjust the --with-sound help text if you change this.
1500 gnu-linux|freebsd|netbsd|mingw32)
1501 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1507 AC_SUBST(CFLAGS_SOUND)
1510 dnl checks for header files
1511 AC_CHECK_HEADERS_ONCE(
1516 sys/utsname.h pwd.h utmp.h util.h)
1518 AC_MSG_CHECKING(if personality LINUX32 can be set)
1519 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1520 emacs_cv_personality_linux32=yes,
1521 emacs_cv_personality_linux32=no)
1522 AC_MSG_RESULT($emacs_cv_personality_linux32)
1524 if test $emacs_cv_personality_linux32 = yes; then
1525 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1526 [Define to 1 if personality LINUX32 can be set.])
1529 # Note that Solaris has sys/sysinfo.h which defines struct
1530 # sysinfo as well. To make sure that we're using GNU/Linux
1531 # sysinfo, we explicitly set one of its fields.
1532 if test "$ac_cv_header_sys_sysinfo_h" = yes; then
1533 AC_MSG_CHECKING([if Linux sysinfo may be used])
1534 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1535 [[struct sysinfo si;
1538 emacs_cv_linux_sysinfo=yes, emacs_cv_linux_sysinfo=no)
1539 AC_MSG_RESULT($emacs_cv_linux_sysinfo)
1540 if test $emacs_cv_linux_sysinfo = yes; then
1541 AC_DEFINE([HAVE_LINUX_SYSINFO], 1, [Define to 1 if you have Linux sysinfo function.])
1542 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1543 [[struct sysinfo si; return si.mem_unit]])],
1544 AC_DEFINE(LINUX_SYSINFO_UNIT, 1,
1545 [Define to 1 if Linux sysinfo sizes are in multiples of mem_unit bytes.]))
1549 dnl On Solaris 8 there's a compilation warning for term.h because
1550 dnl it doesn't define `bool'.
1551 AC_CHECK_HEADERS(term.h, , , -)
1553 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1555 if test $ac_cv_have_decl_sys_siglist != yes; then
1556 # For Tru64, at least:
1557 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1562 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1563 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1564 #if HAVE_SYS_SOCKET_H
1565 #include <sys/socket.h>
1567 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1568 #if HAVE_SYS_SOCKET_H
1569 #include <sys/socket.h>
1571 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1572 #if HAVE_SYS_SOCKET_H
1573 #include <sys/socket.h>
1576 dnl checks for structure members
1577 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1578 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1579 struct ifreq.ifr_addr,
1580 struct ifreq.ifr_addr.sa_len], , ,
1581 [AC_INCLUDES_DEFAULT
1582 #if HAVE_SYS_SOCKET_H
1583 #include <sys/socket.h>
1589 dnl Check for endianness.
1590 dnl AC_C_BIGENDIAN is done by gnulib.
1592 dnl check for Make feature
1597 dnl check if we have GCC and autodepend is on.
1598 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1599 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1600 SAVE_CFLAGS="$CFLAGS"
1601 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1602 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1603 CFLAGS="$SAVE_CFLAGS"
1604 test -f deps.d || ac_enable_autodepend=no
1606 AC_MSG_RESULT([$ac_enable_autodepend])
1607 if test $ac_enable_autodepend = yes; then
1608 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1609 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1610 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1611 deps_frag=autodeps.mk
1614 lwlib_deps_frag=$srcdir/lwlib/$deps_frag
1615 oldxmenu_deps_frag=$srcdir/oldXMenu/$deps_frag
1616 deps_frag=$srcdir/src/$deps_frag
1619 AC_SUBST_FILE(deps_frag)
1620 AC_SUBST_FILE(lwlib_deps_frag)
1621 AC_SUBST_FILE(oldxmenu_deps_frag)
1623 lisp_frag=$srcdir/src/lisp.mk
1624 AC_SUBST_FILE(lisp_frag)
1627 dnl checks for operating system services
1628 AC_SYS_LONG_FILE_NAMES
1630 #### Choose a window system.
1632 ## We leave window_system equal to none if
1633 ## we end up building without one. Any new window system should
1634 ## set window_system to an appropriate value and add objects to
1635 ## window-system-specific substs.
1639 if test "$no_x" != yes; then
1643 LD_SWITCH_X_SITE_RPATH=
1644 if test "${x_libraries}" != NONE; then
1645 if test -n "${x_libraries}"; then
1646 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1647 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1649 x_default_search_path=""
1650 x_search_path=${x_libraries}
1651 if test -z "${x_search_path}"; then
1652 x_search_path=/usr/lib
1654 for x_library in `echo ${x_search_path}: | \
1655 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1657 ${x_library}/X11/%L/%T/%N%C%S:\
1658 ${x_library}/X11/%l/%T/%N%C%S:\
1659 ${x_library}/X11/%T/%N%C%S:\
1660 ${x_library}/X11/%L/%T/%N%S:\
1661 ${x_library}/X11/%l/%T/%N%S:\
1662 ${x_library}/X11/%T/%N%S"
1663 if test x"${x_default_search_path}" = x; then
1664 x_default_search_path=${x_search_path}
1666 x_default_search_path="${x_search_path}:${x_default_search_path}"
1670 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1672 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1673 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1676 if test x"${x_includes}" = x; then
1677 bitmapdir=/usr/include/X11/bitmaps
1679 # accumulate include directories that have X11 bitmap subdirectories
1681 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1682 if test -d "${bmd}/X11/bitmaps"; then
1683 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1685 if test -d "${bmd}/bitmaps"; then
1686 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1689 if test ${bmd_acc} != "dummyval"; then
1690 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1697 tmp_CPPFLAGS="$CPPFLAGS"
1698 tmp_CFLAGS="$CFLAGS"
1699 CPPFLAGS="$CPPFLAGS -x objective-c"
1700 CFLAGS="$CFLAGS -x objective-c"
1703 if test "${with_ns}" != no; then
1704 if test "${opsys}" = darwin; then
1706 ns_appdir=`pwd`/nextstep/Emacs.app
1707 ns_appbindir=${ns_appdir}/Contents/MacOS
1708 ns_appresdir=${ns_appdir}/Contents/Resources
1709 ns_appsrc=Cocoa/Emacs.base
1710 elif test -f $GNUSTEP_CONFIG_FILE; then
1712 ns_appdir=`pwd`/nextstep/Emacs.app
1713 ns_appbindir=${ns_appdir}
1714 ns_appresdir=${ns_appdir}/Resources
1715 ns_appsrc=GNUstep/Emacs.base
1716 dnl FIXME sourcing this several times in subshells seems inefficient.
1717 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1718 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1719 dnl I seemed to need these as well with GNUstep-startup 0.25.
1720 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1721 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1722 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1723 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1724 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1725 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1726 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1727 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1728 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1729 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1730 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1731 dnl If they had chosen to either define it or not, we could have
1732 dnl just used AC_CHECK_DECL here.
1733 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1734 emacs_cv_objc_exceptions,
1735 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1736 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1740 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1741 if test $emacs_cv_objc_exceptions = yes; then
1742 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1743 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1744 [Define if GNUstep uses ObjC exceptions.])
1745 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1749 dnl This is only used while we test the NS headers, it gets reset below.
1750 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1752 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1753 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1754 files are missing or cannot be compiled.])])
1757 if test "${NS_IMPL_COCOA}" = "yes"; then
1758 AC_MSG_CHECKING([for OSX 10.4 or newer])
1759 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1761 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1762 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
1765 error "OSX 10.4 or newer required";
1769 ns_osx_have_104=yes,
1771 AC_MSG_RESULT([$ns_osx_have_104])
1773 if test $ns_osx_have_104 = no; then
1774 AC_MSG_ERROR([`OSX 10.4 or newer is required']);
1776 AC_MSG_CHECKING([for OSX 10.5 or newer])
1777 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1779 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1780 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1050
1783 error "OSX 10.5 not found";
1787 ns_osx_have_105=yes,
1789 AC_MSG_RESULT([$ns_osx_have_105])
1790 if test $ns_osx_have_105 = yes; then
1791 macfont_file="macfont.o"
1794 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1796 ns_have_nsinteger=yes,
1797 ns_have_nsinteger=no)
1798 if test $ns_have_nsinteger = yes; then
1799 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1803 AC_SUBST(LIBS_GNUSTEP)
1805 INSTALL_ARCH_INDEP_EXTRA=install-etc
1806 ns_self_contained=no
1809 if test "${HAVE_NS}" = yes; then
1810 if test "$with_toolkit_scroll_bars" = "no"; then
1811 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1814 window_system=nextstep
1815 # set up packaging dirs
1816 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1817 ns_self_contained=yes
1818 prefix=${ns_appresdir}
1819 exec_prefix=${ns_appbindir}
1820 dnl This one isn't really used, only archlibdir is.
1821 libexecdir="\${ns_appbindir}/libexec"
1822 archlibdir="\${ns_appbindir}/libexec"
1823 etcdocdir="\${ns_appresdir}/etc"
1824 etcdir="\${ns_appresdir}/etc"
1825 dnl FIXME maybe set datarootdir instead.
1826 dnl That would also get applications, icons, man.
1827 infodir="\${ns_appresdir}/info"
1828 mandir="\${ns_appresdir}/man"
1829 lispdir="\${ns_appresdir}/lisp"
1830 INSTALL_ARCH_INDEP_EXTRA=
1833 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o $macfont_file"
1835 CFLAGS="$tmp_CFLAGS"
1836 CPPFLAGS="$tmp_CPPFLAGS"
1837 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1838 AC_SUBST(ns_self_contained)
1840 AC_SUBST(NS_OBJC_OBJ)
1851 if test "${with_w32}" != no; then
1854 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1855 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1856 cannot be found.])])
1859 ## Using --with-w32 with MinGW is a no-op, but we allow it.
1862 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
1867 if test "${opsys}" = "mingw32"; then
1868 AC_MSG_CHECKING([whether Windows API headers are recent enough])
1869 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1870 #include <windows.h>
1871 #include <usp10.h>]],
1872 [[PIMAGE_NT_HEADERS pHeader;
1873 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
1874 [emacs_cv_w32api=yes
1877 AC_MSG_RESULT($emacs_cv_w32api)
1878 if test "${emacs_cv_w32api}" = "no"; then
1879 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
1890 if test "${HAVE_W32}" = "yes"; then
1891 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1892 AC_CHECK_TOOL(WINDRES, [windres],
1893 [AC_MSG_ERROR([No resource compiler found.])])
1894 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1895 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1896 EMACSRES="emacs.res"
1897 case "$canonical" in
1898 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
1899 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
1901 if test "${opsys}" = "cygwin"; then
1902 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1903 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1904 # Tell the linker that emacs.res is an object (which we compile from
1905 # the rc file), not a linker script.
1906 W32_RES_LINK="-Wl,emacs.res"
1908 UPDATE_MANIFEST=update-game-score.exe.manifest
1909 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
1910 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
1911 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
1912 W32_RES_LINK="\$(EMACSRES)"
1913 CLIENTRES="emacsclient.res"
1914 CLIENTW="emacsclientw\$(EXEEXT)"
1915 FIRSTFILE_OBJ=firstfile.o
1918 LIBS_ECLIENT="-lcomctl32"
1919 LIB_WSOCK32="-lwsock32"
1920 NTLIB="ntlib.$ac_objext"
1921 XARGS_LIMIT="-s 10000"
1927 AC_SUBST(EMACS_MANIFEST)
1928 AC_SUBST(UPDATE_MANIFEST)
1931 AC_SUBST(W32_RES_LINK)
1932 AC_SUBST(FIRSTFILE_OBJ)
1935 AC_SUBST(LIBS_ECLIENT)
1936 AC_SUBST(LIB_WSOCK32)
1938 AC_SUBST(XARGS_LIMIT)
1940 if test "${HAVE_W32}" = "yes"; then
1945 ## $window_system is now set to the window system we will
1948 if test "$window_system" = none && test "$gl_gcc_warnings" = yes; then
1949 # Too many warnings for now.
1951 nw="$nw -Wsuggest-attribute=const"
1952 nw="$nw -Wsuggest-attribute=noreturn"
1953 gl_MANYWARN_COMPLEMENT([WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
1955 gl_WARN_ADD([-Wno-unused-variable])
1956 gl_WARN_ADD([-Wno-unused-but-set-variable])
1957 gl_WARN_ADD([-Wno-unused-but-set-parameter])
1965 case "${window_system}" in
1970 case "${with_x_toolkit}" in
1971 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1972 motif ) USE_X_TOOLKIT=MOTIF ;;
1974 term_header=gtkutil.h
1975 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1976 dnl USE_X_TOOLKIT is set.
1977 USE_X_TOOLKIT=none ;;
1978 gtk2 ) with_gtk2=yes
1979 term_header=gtkutil.h
1980 USE_X_TOOLKIT=none ;;
1981 gtk3 ) with_gtk3=yes
1982 term_header=gtkutil.h
1983 USE_X_TOOLKIT=none ;;
1984 no ) USE_X_TOOLKIT=none ;;
1985 dnl If user did not say whether to use a toolkit, make this decision later:
1986 dnl use the toolkit if we have gtk, or X11R5 or newer.
1987 * ) USE_X_TOOLKIT=maybe ;;
1991 term_header=nsterm.h
1994 term_header=w32term.h
1998 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1999 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
2000 if test "$HAVE_XSERVER" = true ||
2001 test -n "$DISPLAY" ||
2002 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
2003 AC_MSG_ERROR([You seem to be running X, but no X development libraries
2004 were found. You should install the relevant development files for X
2005 and for the toolkit you want, such as Gtk+ or Motif. Also make
2006 sure you have development files for image handling, i.e.
2007 tiff, gif, jpeg, png and xpm.
2008 If you are sure you want Emacs compiled without X window support, pass
2014 # Does the opsystem file prohibit the use of the GNU malloc?
2015 # Assume not, until told otherwise.
2019 [whether malloc is Doug Lea style],
2020 [emacs_cv_var_doug_lea_malloc],
2021 [emacs_cv_var_doug_lea_malloc=no
2022 dnl Hooks do not work with address sanitization.
2023 if test "$emacs_cv_sanitize_address" != yes; then
2026 [[#include <malloc.h>
2027 static void hook (void) {}]],
2028 [[malloc_set_state (malloc_get_state ());
2029 __after_morecore_hook = hook;
2030 __malloc_initialize_hook = hook;]])],
2031 [emacs_cv_var_doug_lea_malloc=yes])])
2033 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
2035 system_malloc=$emacs_cv_sanitize_address
2040 ## darwin ld insists on the use of malloc routines in the System framework.
2041 darwin|mingw32|sol2-10) system_malloc=yes ;;
2042 cygwin) hybrid_malloc=yes;;
2046 if test "${system_malloc}" = "yes"; then
2047 AC_DEFINE([SYSTEM_MALLOC], 1,
2048 [Define to 1 to use the system memory allocator, even if it is not
2052 (The GNU allocators don't work with this system configuration.)"
2054 elif test "$hybrid_malloc" = yes; then
2055 AC_DEFINE(HYBRID_MALLOC, 1,
2056 [Define to use gmalloc before dumping and the system malloc after.])
2058 GNU_MALLOC_reason="only before dumping"
2059 GMALLOC_OBJ=gmalloc.o
2062 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
2063 VMLIMIT_OBJ=vm-limit.o
2065 AC_CHECK_HEADERS([sys/vlimit.h])
2066 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
2069 [[extern char data_start[]; char ch;]],
2070 [[return data_start < &ch;]])],
2071 [emacs_cv_data_start=yes],
2072 [emacs_cv_data_start=no])])
2073 if test $emacs_cv_data_start = yes; then
2074 AC_DEFINE([HAVE_DATA_START], 1,
2075 [Define to 1 if data_start is the address of the start
2076 of the main data segment.])
2079 AC_SUBST(GMALLOC_OBJ)
2080 AC_SUBST(VMLIMIT_OBJ)
2082 if test "$doug_lea_malloc" = "yes" ; then
2083 if test "$GNU_MALLOC" = yes ; then
2085 (Using Doug Lea's new malloc from the GNU C Library.)"
2087 AC_DEFINE(DOUG_LEA_MALLOC, 1,
2088 [Define to 1 if the system memory allocator is Doug Lea style,
2089 with malloc hooks and malloc_set_state.])
2091 ## Use mmap directly for allocating larger buffers.
2092 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
2093 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
2094 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
2096 mingw32|gnu*) REL_ALLOC=no ;;
2100 if test x"${REL_ALLOC}" = x; then
2101 REL_ALLOC=${GNU_MALLOC}
2104 use_mmap_for_buffers=no
2106 cygwin|mingw32|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
2110 if test $use_mmap_for_buffers = yes; then
2111 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
2115 LIBS="$LIBS_SYSTEM $LIBS"
2117 dnl FIXME replace main with a function we actually want from this library.
2118 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
2120 dnl Check for the POSIX thread library.
2122 if test "$opsys" != "mingw32"; then
2123 AC_CHECK_HEADERS_ONCE(pthread.h)
2124 if test "$ac_cv_header_pthread_h"; then
2125 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
2126 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
2127 dnl testing for pthread_kill if Emacs uses gmalloc.c.
2128 if test "$GMALLOC_OBJ" = gmalloc.o; then
2129 emacs_pthread_function=pthread_atfork
2131 emacs_pthread_function=pthread_kill
2134 AC_SEARCH_LIBS([$emacs_pthread_function], [pthread],
2135 [AC_DEFINE([HAVE_PTHREAD], [1],
2136 [Define to 1 if you have pthread (-lpthread).])
2137 # Some systems optimize for single-threaded programs by default, and
2138 # need special flags to disable these optimizations. For example, the
2139 # definition of 'errno' in <errno.h>.
2142 AC_DEFINE([_REENTRANT], 1,
2143 [Define to 1 if your system requires this in multithreaded code.]);;
2145 AC_DEFINE([_THREAD_SAFE], 1,
2146 [Define to 1 if your system requires this in multithreaded code.]);;
2148 if test "X$LIBS" != "X$OLD_LIBS"; then
2149 eval LIB_PTHREAD=\$ac_cv_search_$emacs_pthread_function
2153 AC_SUBST([LIB_PTHREAD])
2156 dnl Check for need for bigtoc support on IBM AIX
2160 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
2162 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
2163 *) gdb_cv_bigtoc=-bbigtoc ;;
2166 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
2167 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
2172 # Change CFLAGS, CPPFLAGS, and LIBS temporarily so that C_SWITCH_X_SITE
2173 # is for the tests that follow. We set them back later on.
2175 REAL_CFLAGS="$CFLAGS"
2176 REAL_CPPFLAGS="$CPPFLAGS"
2179 if test "${HAVE_X11}" = "yes"; then
2180 DEFS="$C_SWITCH_X_SITE $DEFS"
2181 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2183 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2184 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2186 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2187 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2188 # but it's more convenient here to set LD_RUN_PATH since this
2189 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2190 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2191 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2195 if test "${opsys}" = "gnu-linux"; then
2196 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2197 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2198 [[XOpenDisplay ("foo");]])],
2199 [xgnu_linux_first_failure=no],
2200 [xgnu_linux_first_failure=yes])
2201 if test "${xgnu_linux_first_failure}" = "yes"; then
2202 OLD_CPPFLAGS="$CPPFLAGS"
2204 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2205 LIBS="$LIBS -b i486-linuxaout"
2206 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2207 [[XOpenDisplay ("foo");]])],
2208 [xgnu_linux_second_failure=no],
2209 [xgnu_linux_second_failure=yes])
2210 if test "${xgnu_linux_second_failure}" = "yes"; then
2211 # If we get the same failure with -b, there is no use adding -b.
2212 # So leave it out. This plays safe.
2215 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2216 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2219 CPPFLAGS=$OLD_CPPFLAGS
2226 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2227 # header files included from there.
2228 AC_MSG_CHECKING(for Xkb)
2229 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2230 #include <X11/XKBlib.h>]],
2231 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2232 emacs_xkb=yes, emacs_xkb=no)
2233 AC_MSG_RESULT($emacs_xkb)
2234 if test $emacs_xkb = yes; then
2235 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2238 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2239 XScreenNumberOfScreen)
2242 if test "${window_system}" = "x11"; then
2243 AC_MSG_CHECKING(X11 version 6)
2244 AC_CACHE_VAL(emacs_cv_x11_version_6,
2245 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2246 [[#if XlibSpecificationRelease < 6
2249 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2250 if test $emacs_cv_x11_version_6 = yes; then
2251 AC_MSG_RESULT(6 or newer)
2252 AC_DEFINE(HAVE_X11R6, 1,
2253 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2254 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2255 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2259 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2260 [Define if you have usable X11R6-style XIM support.])
2264 AC_MSG_RESULT(before 6)
2269 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
2271 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2272 if test "${with_rsvg}" != "no"; then
2273 RSVG_REQUIRED=2.11.0
2274 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2276 EMACS_CHECK_MODULES([RSVG], [$RSVG_MODULE])
2277 AC_SUBST(RSVG_CFLAGS)
2280 if test $HAVE_RSVG = yes; then
2281 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2282 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2283 # Windows loads librsvg dynamically
2284 if test "${opsys}" = "mingw32"; then
2292 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${HAVE_W32}" = "yes"; then
2293 if test "${with_imagemagick}" != "no"; then
2294 ## 6.3.5 is the earliest version known to work; see Bug#17339.
2295 ## 6.8.2 makes Emacs crash; see Bug#13867.
2296 IMAGEMAGICK_MODULE="Wand >= 6.3.5 Wand != 6.8.2"
2297 EMACS_CHECK_MODULES([IMAGEMAGICK], [$IMAGEMAGICK_MODULE])
2298 AC_SUBST(IMAGEMAGICK_CFLAGS)
2299 AC_SUBST(IMAGEMAGICK_LIBS)
2301 if test $HAVE_IMAGEMAGICK = yes; then
2302 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2305 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2306 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2307 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
2317 gtk_term_header=$term_header
2320 if test "${opsys}" != "mingw32"; then
2321 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2324 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2326 dnl Checks for libraries.
2327 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2328 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2329 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2330 AC_MSG_ERROR($GTK_PKG_ERRORS)
2332 if test "$pkg_check_gtk" = "yes"; then
2333 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2334 GTK_OBJ=emacsgtkfixed.o
2335 gtk_term_header=gtkutil.h
2336 USE_GTK_TOOLKIT="GTK3"
2337 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2338 AC_DEFINE([GDK_DISABLE_DEPRECATION_WARNINGS], [1],
2339 [Define to 1 to disable GTK+/GDK deprecation warnings.])
2340 AC_DEFINE([GLIB_DISABLE_DEPRECATION_WARNINGS], [1],
2341 [Define to 1 to disable Glib deprecation warnings.])
2345 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2349 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2352 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2354 dnl Checks for libraries.
2355 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2356 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2357 if test "$pkg_check_gtk" = "no" &&
2358 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2360 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2362 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2369 if test x"$pkg_check_gtk" = xyes; then
2372 CFLAGS="$CFLAGS $GTK_CFLAGS"
2373 LIBS="$GTK_LIBS $LIBS"
2374 dnl Try to compile a simple GTK program.
2375 AC_MSG_CHECKING([whether GTK compiles])
2379 [[/* Check the Gtk and Glib APIs. */
2380 #include <gtk/gtk.h>
2381 #include <glib-object.h>
2383 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2387 GtkSettings *gs = 0;
2388 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2389 strict C prohibits this. Use gtk_main_iteration to test that the
2390 libraries are there. */
2391 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2392 0, 0, 0, G_CALLBACK (callback), 0))
2393 gtk_main_iteration ();
2396 AC_MSG_RESULT([$GTK_COMPILES])
2397 if test "${GTK_COMPILES}" != "yes"; then
2399 if test "$USE_X_TOOLKIT" != "maybe"; then
2400 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2403 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2405 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2406 GTK_OBJ="gtkutil.o $GTK_OBJ"
2407 term_header=$gtk_term_header
2409 if "$PKG_CONFIG" --atleast-version=2.10 gtk+-2.0; then
2412 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2413 closing open displays. This is no problem if you just use
2414 one display, but if you use more than one and close one of them
2424 if test "${HAVE_GTK}" = "yes"; then
2426 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2427 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2428 if test "$with_toolkit_scroll_bars" != no; then
2429 with_toolkit_scroll_bars=yes
2432 dnl Check if we have the old file selection dialog declared and
2433 dnl in the link library. In 2.x it may be in the library,
2434 dnl but not declared if deprecated featured has been selected out.
2435 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2436 HAVE_GTK_FILE_SELECTION=no
2437 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2438 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2439 #include <gtk/gtk.h>])
2440 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2441 AC_CHECK_FUNCS(gtk_file_selection_new)
2444 dnl Same as above for gtk_handle_box.
2445 HAVE_GTK_HANDLE_BOX=no
2446 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2447 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2448 #include <gtk/gtk.h>])
2449 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2450 AC_CHECK_FUNCS(gtk_handle_box_new)
2453 dnl Same as above for gtk_tearoff_menu_item.
2454 HAVE_GTK_TEAROFF_MENU_ITEM=no
2455 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2456 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2457 #include <gtk/gtk.h>])
2458 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2459 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2462 dnl Check for functions introduced in 2.14 and later.
2463 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2464 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2465 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2466 gtk_orientable_set_orientation \
2467 gtk_window_set_has_resize_grip)
2469 term_header=gtkutil.h
2475 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2476 dnl other platforms.
2479 if test "${with_dbus}" = "yes"; then
2480 EMACS_CHECK_MODULES([DBUS], [dbus-1 >= 1.0])
2481 if test "$HAVE_DBUS" = yes; then
2482 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2483 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2484 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2487 LIBS="$LIBS $DBUS_LIBS"
2488 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2489 dbus_type_is_valid \
2490 dbus_validate_bus_name \
2491 dbus_validate_path \
2492 dbus_validate_interface \
2493 dbus_validate_member)
2498 AC_SUBST(DBUS_CFLAGS)
2502 dnl GSettings has been tested under GNU/Linux only.
2504 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2505 EMACS_CHECK_MODULES([GSETTINGS], [gio-2.0 >= 2.26])
2506 if test "$HAVE_GSETTINGS" = "yes"; then
2508 CFLAGS="$CFLAGS $GSETTINGS_CFLAGS"
2510 LIBS="$LIBS $GSETTINGS_LIBS"
2511 AC_MSG_CHECKING([whether GSettings is in gio])
2514 [[/* Check that gsettings really is present. */
2515 #include <glib-object.h>
2516 #include <gio/gio.h>
2519 GSettings *settings;
2520 GVariant *val = g_settings_get_value (settings, "");
2522 [], HAVE_GSETTINGS=no)
2523 AC_MSG_RESULT([$HAVE_GSETTINGS])
2525 if test "$HAVE_GSETTINGS" = "yes"; then
2526 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2527 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2528 SETTINGS_LIBS="$GSETTINGS_LIBS"
2535 dnl GConf has been tested under GNU/Linux only.
2536 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2538 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2539 EMACS_CHECK_MODULES([GCONF], [gconf-2.0 >= 2.13])
2540 if test "$HAVE_GCONF" = yes; then
2541 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2542 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2543 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2544 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2548 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2549 EMACS_CHECK_MODULES([GOBJECT], [gobject-2.0 >= 2.0])
2550 if test "$HAVE_GOBJECT" = "yes"; then
2551 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2552 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2554 SAVE_CFLAGS="$CFLAGS"
2556 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2557 LIBS="$SETTINGS_LIBS $LIBS"
2558 CFLAGS="$SAVE_CFLAGS"
2561 AC_SUBST(SETTINGS_CFLAGS)
2562 AC_SUBST(SETTINGS_LIBS)
2565 dnl SELinux is available for GNU/Linux only.
2568 if test "${with_selinux}" = "yes"; then
2569 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2570 if test "$HAVE_LIBSELINUX" = yes; then
2571 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2572 LIBSELINUX_LIBS=-lselinux
2575 AC_SUBST(LIBSELINUX_LIBS)
2579 if test "${with_gnutls}" = "yes" ; then
2580 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 3.0.0],
2581 [HAVE_GNUTLS3=yes], [HAVE_GNUTLS3=no])
2582 if test "${HAVE_GNUTLS3}" = "yes"; then
2583 AC_DEFINE(HAVE_GNUTLS3, 1, [Define if using GnuTLS v3.])
2586 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6],
2587 [HAVE_GNUTLS=yes], [HAVE_GNUTLS=no])
2589 if test "${HAVE_GNUTLS}" = "yes"; then
2590 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2593 # Windows loads GnuTLS dynamically
2594 if test "${opsys}" = "mingw32"; then
2599 AC_SUBST(LIBGNUTLS_LIBS)
2600 AC_SUBST(LIBGNUTLS_CFLAGS)
2605 dnl FIXME? Don't auto-detect on NS, but do allow someone to specify
2606 dnl a particular library. This doesn't make much sense?
2607 if test "${with_ns}" = yes && test ${with_file_notification} = yes; then
2608 with_file_notification=no
2611 dnl MS Windows native file monitor is available for mingw32 only.
2612 case $with_file_notification,$opsys in
2613 w32,* | yes,mingw32)
2614 AC_CHECK_HEADER(windows.h)
2615 if test "$ac_cv_header_windows_h" = yes ; then
2616 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2617 NOTIFY_OBJ=w32notify.o
2618 NOTIFY_SUMMARY="yes (w32)"
2622 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2623 dnl has been added in glib 2.24. It has been tested under
2624 dnl GNU/Linux only. We take precedence over inotify, but this makes
2625 dnl only sense when glib has been compiled with inotify support. How
2627 case $with_file_notification,$NOTIFY_OBJ in
2629 EMACS_CHECK_MODULES([GFILENOTIFY], [gio-2.0 >= 2.24])
2630 if test "$HAVE_GFILENOTIFY" = "yes"; then
2631 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2632 NOTIFY_OBJ=gfilenotify.o
2633 NOTIFY_SUMMARY="yes -lgio (gfile)"
2637 dnl inotify is only available on GNU/Linux.
2638 case $with_file_notification,$NOTIFY_OBJ in
2640 AC_CHECK_HEADER(sys/inotify.h)
2641 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2642 AC_CHECK_FUNC(inotify_init1)
2643 if test "$ac_cv_func_inotify_init1" = yes; then
2644 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2645 NOTIFY_OBJ=inotify.o
2646 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2651 case $with_file_notification,$NOTIFY_OBJ in
2652 yes,* | no,* | *,?*) ;;
2653 *) AC_MSG_ERROR([File notification `$with_file_notification' requested but requirements not found.]) ;;
2656 if test -n "$NOTIFY_OBJ"; then
2657 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2659 AC_SUBST(NOTIFY_OBJ)
2660 AC_SUBST(GFILENOTIFY_CFLAGS)
2661 AC_SUBST(GFILENOTIFY_LIBS)
2663 dnl Do not put whitespace before the #include statements below.
2664 dnl Older compilers (eg sunos4 cc) choke on it.
2667 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2668 if test "$with_xaw3d" != no; then
2669 AC_CACHE_VAL(emacs_cv_xaw3d,
2670 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2671 #include <X11/Intrinsic.h>
2672 #include <X11/Xaw3d/Simple.h>]],
2674 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2675 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2676 emacs_cv_xaw3d=no)])
2680 if test $emacs_cv_xaw3d = yes; then
2681 AC_MSG_CHECKING(for xaw3d)
2682 AC_MSG_RESULT([yes; using Lucid toolkit])
2686 AC_DEFINE(HAVE_XAW3D, 1,
2687 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2689 AC_MSG_CHECKING(for xaw3d)
2691 AC_MSG_CHECKING(for libXaw)
2692 AC_CACHE_VAL(emacs_cv_xaw,
2693 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2694 #include <X11/Intrinsic.h>
2695 #include <X11/Xaw/Simple.h>]],
2699 if test $emacs_cv_xaw = yes; then
2700 AC_MSG_RESULT([yes; using Lucid toolkit])
2703 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2704 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2706 AC_MSG_ERROR([No X toolkit could be found.
2707 If you are sure you want Emacs compiled without an X toolkit, pass
2709 to configure. Otherwise, install the development libraries for the toolkit
2710 that you want to use (e.g. Gtk+) and re-run configure.])
2715 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2719 if test "${USE_X_TOOLKIT}" != "none"; then
2720 AC_MSG_CHECKING(X11 toolkit version)
2721 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2722 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2723 [[#if XtSpecificationRelease < 6
2726 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2727 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2728 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2729 AC_MSG_RESULT(6 or newer)
2730 AC_DEFINE(HAVE_X11XTR6, 1,
2731 [Define to 1 if you have the X11R6 or newer version of Xt.])
2732 LIBXTR6="-lSM -lICE"
2734 ## Use libw.a along with X11R6 Xt.
2735 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2738 AC_MSG_RESULT(before 6)
2741 dnl If using toolkit, check whether libXmu.a exists.
2742 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2744 if test x$HAVE_X11XTR6 = xyes; then
2745 OTHERLIBS='-lXt -lSM -lICE'
2749 AC_SEARCH_LIBS([XmuConvertStandardSelection], [Xmu], [], [], [$OTHERLIBS])
2750 if test "X$LIBS" != "X$OLDLIBS"; then
2751 LIBXMU=$ac_cv_search_XmuConvertStandardSelection
2754 dnl ac_cv_search_XmuConvertStandardSelection is also referenced below.
2760 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2761 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2762 if test -d /usr/include/openmotif; then
2763 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2764 emacs_cv_openmotif=yes
2765 case "$canonical" in
2766 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2767 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2770 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2773 emacs_cv_openmotif=no
2775 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2776 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2777 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2780 Motif version prior to 2.1.
2782 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2783 if test $emacs_cv_motif_version_2_1 = yes; then
2784 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2785 if test x$emacs_cv_openmotif = xyes; then
2786 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2789 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2790 # We put this in CFLAGS temporarily to precede other -I options
2791 # that might be in CFLAGS temporarily.
2792 # We put this in CPPFLAGS where it precedes the other -I options.
2793 OLD_CPPFLAGS=$CPPFLAGS
2795 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2796 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2797 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2799 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2800 if test $emacs_cv_lesstif = yes; then
2801 # Make sure this -I option remains in CPPFLAGS after it is set
2802 # back to REAL_CPPFLAGS.
2803 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2804 # have those other -I options anyway. Ultimately, having this
2805 # directory ultimately in CPPFLAGS will be enough.
2806 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2807 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2810 CPPFLAGS=$OLD_CPPFLAGS
2813 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2814 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2817 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2818 dnl using Motif or Xaw3d is available, and unless
2819 dnl --with-toolkit-scroll-bars=no was specified.
2821 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2822 [Define to 1 if we should use toolkit scroll bars.])dnl
2823 USE_TOOLKIT_SCROLL_BARS=no
2824 if test "${with_toolkit_scroll_bars}" != "no"; then
2825 if test "${USE_X_TOOLKIT}" != "none"; then
2826 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2827 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2829 USE_TOOLKIT_SCROLL_BARS=yes
2830 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2831 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2832 USE_TOOLKIT_SCROLL_BARS=yes
2834 elif test "${HAVE_GTK}" = "yes"; then
2835 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2836 USE_TOOLKIT_SCROLL_BARS=yes
2837 elif test "${HAVE_NS}" = "yes"; then
2838 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2839 USE_TOOLKIT_SCROLL_BARS=yes
2840 elif test "${HAVE_W32}" = "yes"; then
2841 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2842 USE_TOOLKIT_SCROLL_BARS=yes
2846 dnl See if XIM is available.
2847 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2848 #include <X11/Xlib.h>
2849 #include <X11/Xresource.h>]],
2850 [[XIMProc callback;]])],
2852 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2855 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2857 if test "${with_xim}" != "no"; then
2858 AC_DEFINE(USE_XIM, 1,
2859 [Define to 1 if we should use XIM, if it is available.])
2863 if test "${HAVE_XIM}" != "no"; then
2865 if test "$GCC" = yes; then
2866 CFLAGS="$CFLAGS --pedantic-errors"
2868 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2869 #include <X11/Xlib.h>
2870 #include <X11/Xresource.h>]],
2876 XPointer *client_data;
2878 /* If we're not using GCC, it's probably not XFree86, and this is
2879 probably right, but we can't use something like --pedantic-errors. */
2880 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2881 char*, XIMProc, XPointer*);
2883 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2885 [emacs_cv_arg6_star=yes])
2886 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2887 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2888 either XPointer or XPointer*.])dnl
2889 if test "$emacs_cv_arg6_star" = yes; then
2890 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2892 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2897 ### Start of font-backend (under any platform) section.
2898 # (nothing here yet -- this is a placeholder)
2899 ### End of font-backend (under any platform) section.
2901 ### Start of font-backend (under X11) section.
2902 if test "${HAVE_X11}" = "yes"; then
2903 ## Use -lXft if available, unless `--with-xft=no'.
2905 if test "x${with_x}" = "xno"; then
2909 if test "$with_xft" != no; then
2910 EMACS_CHECK_MODULES([FONTCONFIG], [fontconfig >= 2.2.0])
2911 with_xft=$HAVE_FONTCONFIG
2914 if test "x${with_xft}" != "xno"; then
2916 EMACS_CHECK_MODULES([XFT], [xft >= 0.13.0], [], [HAVE_XFT=no])
2917 ## Because xftfont.c uses XRenderQueryExtension, we also
2918 ## need to link to -lXrender.
2920 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2921 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2922 OLD_CPPFLAGS="$CPPFLAGS"
2923 OLD_CFLAGS="$CFLAGS"
2925 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2926 CFLAGS="$CFLAGS $XFT_CFLAGS"
2927 XFT_LIBS="-lXrender $XFT_LIBS"
2928 LIBS="$XFT_LIBS $LIBS"
2929 AC_CHECK_HEADER(X11/Xft/Xft.h,
2930 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
2931 [[#include <X11/X.h>]])
2933 if test "${HAVE_XFT}" = "yes"; then
2934 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2936 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2937 fi # "${HAVE_XFT}" = "yes"
2938 CPPFLAGS=$OLD_CPPFLAGS
2941 fi # "$HAVE_XFT" != no
2942 fi # "x${with_xft}" != "xno"
2944 ## We used to allow building with FreeType and without Xft.
2945 ## However, the ftx font backend driver is not in good shape.
2946 if test "$HAVE_XFT" != "yes"; then
2947 dnl For the "Does Emacs use" message at the end.
2951 dnl Strict linkers fail with
2952 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2953 dnl if -lfreetype is not specified.
2954 dnl The following is needed to set FREETYPE_LIBS.
2955 EMACS_CHECK_MODULES([FREETYPE], [freetype2])
2957 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2961 if test "${HAVE_FREETYPE}" = "yes"; then
2962 AC_DEFINE(HAVE_FREETYPE, 1,
2963 [Define to 1 if using the freetype and fontconfig libraries.])
2964 if test "${with_libotf}" != "no"; then
2965 EMACS_CHECK_MODULES([LIBOTF], [libotf])
2966 if test "$HAVE_LIBOTF" = "yes"; then
2967 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2968 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2969 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2970 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2971 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2972 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2973 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2977 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2978 dnl Does the new font backend require it, or can it work without it?
2982 if test "${HAVE_LIBOTF}" = yes; then
2983 if test "${with_m17n_flt}" != "no"; then
2984 EMACS_CHECK_MODULES([M17N_FLT], [m17n-flt])
2985 if test "$HAVE_M17N_FLT" = "yes"; then
2986 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2997 ### End of font-backend (under X11) section.
2999 AC_SUBST(FREETYPE_CFLAGS)
3000 AC_SUBST(FREETYPE_LIBS)
3001 AC_SUBST(FONTCONFIG_CFLAGS)
3002 AC_SUBST(FONTCONFIG_LIBS)
3003 AC_SUBST(LIBOTF_CFLAGS)
3004 AC_SUBST(LIBOTF_LIBS)
3005 AC_SUBST(M17N_FLT_CFLAGS)
3006 AC_SUBST(M17N_FLT_LIBS)
3008 ### Use -lXpm if available, unless `--with-xpm=no'.
3009 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
3010 ### In the Cygwin-w32 build, we need to use /usr/include/noX/X11/xpm.h
3011 ### rather than /usr/include/X11/xpm.h, so we set CPPFLAGS (and
3012 ### LDFLAGS) accordingly.
3015 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
3016 if test "${with_xpm}" != "no"; then
3017 SAVE_CPPFLAGS="$CPPFLAGS"
3018 SAVE_LDFLAGS="$LDFLAGS"
3019 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
3020 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
3021 AC_CHECK_HEADER(X11/xpm.h,
3022 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
3023 if test "${HAVE_XPM}" = "yes"; then
3024 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3025 AC_EGREP_CPP(no_return_alloc_pixels,
3026 [#include "X11/xpm.h"
3027 #ifndef XpmReturnAllocPixels
3028 no_return_alloc_pixels
3030 ], HAVE_XPM=no, HAVE_XPM=yes)
3032 if test "${HAVE_XPM}" = "yes"; then
3033 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
3037 CPPFLAGS="$SAVE_CPPFLAGS"
3038 LDFLAGS="$SAVE_LDFLAGS"
3043 if test "${HAVE_XPM}" = "yes"; then
3044 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3049 if test "${HAVE_X11}" = "yes"; then
3050 dnl Avoid Xpm on AIX unless requested, as it crashes; see Bug#17598.
3051 test "$opsys$with_xpm_set" = aix4-2 && with_xpm=no
3053 if test "${with_xpm}" != "no"; then
3054 AC_CHECK_HEADER(X11/xpm.h,
3055 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
3056 if test "${HAVE_XPM}" = "yes"; then
3057 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3058 AC_EGREP_CPP(no_return_alloc_pixels,
3059 [#include "X11/xpm.h"
3060 #ifndef XpmReturnAllocPixels
3061 no_return_alloc_pixels
3063 ], HAVE_XPM=no, HAVE_XPM=yes)
3065 if test "${HAVE_XPM}" = "yes"; then
3073 if test "${HAVE_XPM}" = "yes"; then
3074 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3076 elif test "$opsys,$LUCID_LIBW" = aix4-2,-lXaw; then
3077 dnl AIX -lXaw needs -lXpm linked too; see Bug#17598 Message#152.
3082 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
3083 ### slightly different requirements wrt image libraries (it doesn't
3084 ### use -lXpm because it loads the xpm shared library dynamically at
3086 if test "${opsys}" = "mingw32"; then
3087 if test "${with_xpm}" != "no"; then
3088 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
3092 if test "${HAVE_XPM}" = "yes"; then
3093 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3099 ### Use -ljpeg if available, unless `--with-jpeg=no'.
3100 ### mingw32 doesn't use -ljpeg, since it loads the library dynamically.
3103 if test "${opsys}" = "mingw32"; then
3104 if test "${with_jpeg}" != "no"; then
3105 dnl Checking for jpeglib.h can lose because of a redefinition of
3107 AC_CHECK_HEADER(jerror.h, HAVE_JPEG=yes, HAVE_JPEG=no)
3109 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
3110 if test "${HAVE_JPEG}" = "yes"; then
3111 AC_DEFINE(HAVE_JPEG)
3112 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
3113 [#include <jpeglib.h>
3114 version=JPEG_LIB_VERSION
3116 [AC_DEFINE(HAVE_JPEG)],
3117 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
3120 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3121 if test "${with_jpeg}" != "no"; then
3122 dnl Checking for jpeglib.h can lose because of a redefinition of
3124 AC_CHECK_HEADER(jerror.h,
3125 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
3128 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
3129 if test "${HAVE_JPEG}" = "yes"; then
3130 AC_DEFINE(HAVE_JPEG)
3131 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
3132 [#include <jpeglib.h>
3133 version=JPEG_LIB_VERSION
3135 [AC_DEFINE(HAVE_JPEG)],
3136 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
3139 if test "${HAVE_JPEG}" = "yes"; then
3147 if test "${with_zlib}" != "no"; then
3149 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
3151 case $ac_cv_search_inflateEnd in
3152 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3155 if test "${HAVE_ZLIB}" = "yes"; then
3156 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3157 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3158 if test "${opsys}" = "mingw32"; then
3164 ### Use -lpng if available, unless `--with-png=no'.
3168 if test "${NS_IMPL_COCOA}" = yes; then
3170 elif test "${with_png}" != no; then
3171 # mingw32 loads the library dynamically.
3172 if test "$opsys" = mingw32; then
3173 AC_CHECK_HEADER([png.h], [HAVE_PNG=yes])
3174 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3175 AC_MSG_CHECKING([for png])
3176 png_cflags=`(libpng-config --cflags) 2>&AS_MESSAGE_LOG_FD` &&
3177 png_libs=`(libpng-config --libs) 2>&AS_MESSAGE_LOG_FD` || {
3178 # libpng-config does not work; configure by hand.
3179 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
3180 # in /usr/include/libpng.
3181 if test -r /usr/include/libpng/png.h &&
3182 test ! -r /usr/include/png.h; then
3183 png_cflags=-I/usr/include/libpng
3191 CFLAGS="$CFLAGS $png_cflags"
3192 LIBS="$png_libs -lz -lm $LIBS"
3194 [AC_LANG_PROGRAM([[#include <png.h>]],
3195 [[return !png_get_channels (0, 0);]])],
3197 PNG_CFLAGS=`AS_ECHO(["$png_cflags"]) | sed -e "$edit_cflags"`
3199 # $LIBPNG requires explicit -lz in some cases.
3200 # We don't know what those cases are, exactly, so play it safe and
3201 # append -lz to any nonempty $LIBPNG, unless we're already using LIBZ.
3202 if test -n "$LIBPNG" && test -z "$LIBZ"; then
3203 LIBPNG="$LIBPNG -lz"
3207 AC_MSG_RESULT([$HAVE_PNG])
3210 if test $HAVE_PNG = yes; then
3211 AC_DEFINE([HAVE_PNG], [1], [Define to 1 if you have the png library.])
3214 CFLAGS="$CFLAGS $PNG_CFLAGS"
3215 AC_CHECK_DECL([png_longjmp],
3217 [AC_DEFINE([PNG_DEPSTRUCT], [],
3218 [Define to empty to suppress deprecation warnings when building
3219 with --enable-gcc-warnings and with libpng versions before 1.5,
3220 which lack png_longjmp.])],
3226 AC_SUBST(PNG_CFLAGS)
3228 ### Use -ltiff if available, unless `--with-tiff=no'.
3229 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3232 if test "${opsys}" = "mingw32"; then
3233 if test "${with_tiff}" != "no"; then
3234 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3236 if test "${HAVE_TIFF}" = "yes"; then
3237 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3239 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3240 if test "${with_tiff}" != "no"; then
3241 AC_CHECK_HEADER(tiffio.h,
3243 # At least one tiff package requires the jpeg library.
3244 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3245 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3248 if test "${HAVE_TIFF}" = "yes"; then
3249 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3250 dnl FIXME -lz -lm, as per libpng?
3256 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
3257 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3260 if test "${opsys}" = "mingw32"; then
3261 if test "${with_gif}" != "no"; then
3262 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3264 if test "${HAVE_GIF}" = "yes"; then
3265 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3267 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3268 || test "${HAVE_W32}" = "yes"; then
3269 AC_CHECK_HEADER(gif_lib.h,
3270 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3271 # Earlier versions can crash Emacs, but version 5.0 removes EGifPutExtensionLast.
3272 [AC_CHECK_LIB(gif, GifMakeMapObject, HAVE_GIF=yes,
3273 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])])
3275 if test "$HAVE_GIF" = yes; then
3277 elif test "$HAVE_GIF" = maybe; then
3278 # If gif_lib.h but no libgif, try libungif.
3279 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3280 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3283 if test "${HAVE_GIF}" = "yes"; then
3284 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3289 dnl Check for required libraries.
3290 if test "${HAVE_X11}" = "yes"; then
3293 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3294 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3295 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3296 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3297 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3298 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3299 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3300 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3301 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3302 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3304 if test "X${MISSING}" != X; then
3305 AC_MSG_ERROR([The following required libraries were not found:
3307 Maybe some development libraries/packages are missing?
3308 If you don't want to link with them give
3310 as options to configure])
3314 ### Use -lgpm if available, unless `--with-gpm=no'.
3317 if test "${with_gpm}" != "no"; then
3318 AC_CHECK_HEADER(gpm.h,
3319 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3321 if test "${HAVE_GPM}" = "yes"; then
3322 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3328 dnl Check for malloc/malloc.h on darwin
3329 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3332 ### Use NeXTstep API to implement GUI.
3333 if test "${HAVE_NS}" = "yes"; then
3334 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
3335 if test "${NS_IMPL_COCOA}" = "yes"; then
3336 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
3338 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3339 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3340 # See also .m.o rule in Makefile.in */
3341 # FIXME: are all these flags really needed? Document here why. */
3342 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3343 ## Extra CFLAGS applied to src/*.m files.
3344 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3349 ### Use session management (-lSM -lICE) if available
3352 if test "${HAVE_X11}" = "yes"; then
3353 AC_CHECK_HEADER(X11/SM/SMlib.h,
3354 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3356 if test "${HAVE_X_SM}" = "yes"; then
3357 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3363 ### Use XRandr (-lXrandr) if available
3365 if test "${HAVE_X11}" = "yes"; then
3366 XRANDR_REQUIRED=1.2.2
3367 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3368 EMACS_CHECK_MODULES([XRANDR], [$XRANDR_MODULES])
3369 if test $HAVE_XRANDR = no; then
3370 # Test old way in case pkg-config doesn't have it (older machines).
3371 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3372 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)])
3373 if test $HAVE_XRANDR = yes; then
3374 XRANDR_LIBS=-lXrandr
3377 if test $HAVE_XRANDR = yes; then
3378 SAVE_CFLAGS="$CFLAGS"
3380 CFLAGS="$XRANDR_CFLAGS $CFLAGS"
3381 LIBS="$XRANDR_LIBS $LIBS"
3382 AC_CHECK_FUNCS(XRRGetOutputPrimary XRRGetScreenResourcesCurrent)
3383 CFLAGS="$SAVE_CFLAGS"
3386 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3389 AC_SUBST(XRANDR_CFLAGS)
3390 AC_SUBST(XRANDR_LIBS)
3392 ### Use Xinerama (-lXinerama) if available
3394 if test "${HAVE_X11}" = "yes"; then
3395 XINERAMA_REQUIRED=1.0.2
3396 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3397 EMACS_CHECK_MODULES([XINERAMA], [$XINERAMA_MODULES])
3398 if test $HAVE_XINERAMA = no; then
3399 # Test old way in case pkg-config doesn't have it (older machines).
3400 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3401 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3402 if test $HAVE_XINERAMA = yes; then
3403 XINERAMA_LIBS=-lXinerama
3406 if test $HAVE_XINERAMA = yes; then
3407 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3410 AC_SUBST(XINERAMA_CFLAGS)
3411 AC_SUBST(XINERAMA_LIBS)
3413 ### Use Xfixes (-lXfixes) if available
3415 if test "${HAVE_X11}" = "yes"; then
3416 XFIXES_REQUIRED=4.0.0
3417 XFIXES_MODULES="xfixes >= $XFIXES_REQUIRED"
3418 EMACS_CHECK_MODULES([XFIXES], [$XFIXES_MODULES])
3419 if test $HAVE_XFIXES = no; then
3420 # Test old way in case pkg-config doesn't have it (older machines).
3421 AC_CHECK_HEADER(X11/extensions/Xfixes.h,
3422 [AC_CHECK_LIB(Xfixes, XFixesHideCursor, HAVE_XFIXES=yes)])
3423 if test $HAVE_XFIXES = yes; then
3424 XFIXES_LIBS=-lXfixes
3427 if test $HAVE_XFIXES = yes; then
3428 AC_DEFINE(HAVE_XFIXES, 1, [Define to 1 if you have the Xfixes extension.])
3431 AC_SUBST(XFIXES_CFLAGS)
3432 AC_SUBST(XFIXES_LIBS)
3434 ### Use libxml (-lxml2) if available
3435 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3437 if test "${with_xml2}" != "no"; then
3438 ### I'm not sure what the version number should be, so I just guessed.
3439 EMACS_CHECK_MODULES([LIBXML2], [libxml-2.0 > 2.6.17])
3440 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3441 if test "${HAVE_LIBXML2}" != "yes" -a "$opsys" = "darwin"; then
3442 SAVE_CPPFLAGS="$CPPFLAGS"
3443 CPPFLAGS="$CPPFLAGS -I$xcsdkdir/usr/include/libxml2"
3444 AC_CHECK_HEADER(libxml/HTMLparser.h,
3445 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3446 [#include <libxml/HTMLparser.h>])])
3447 CPPFLAGS="$SAVE_CPPFLAGS"
3448 if test "${HAVE_LIBXML2}" = "yes"; then
3449 LIBXML2_CFLAGS="-I'$xcsdkdir/usr/include/libxml2'"
3450 LIBXML2_LIBS="-lxml2"
3453 if test "${HAVE_LIBXML2}" = "yes"; then
3454 if test "${opsys}" != "mingw32"; then
3455 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no
3460 if test "${HAVE_LIBXML2}" = "yes"; then
3461 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3468 AC_SUBST(LIBXML2_LIBS)
3469 AC_SUBST(LIBXML2_CFLAGS)
3471 # If netdb.h doesn't declare h_errno, we must declare it by hand.
3472 # On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
3473 if test "${opsys}" = "mingw32"; then
3474 emacs_cv_netdb_declares_h_errno=yes
3476 AC_CACHE_CHECK(whether netdb declares h_errno,
3477 emacs_cv_netdb_declares_h_errno,
3478 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
3479 [[return h_errno;]])],
3480 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
3481 if test $emacs_cv_netdb_declares_h_errno = yes; then
3482 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
3485 # Check for mail-locking functions in a "mail" library. Probably this should
3486 # have the same check as for liblockfile below.
3487 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
3488 if test $have_mail = yes; then
3490 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
3493 LIBS="$LIBS_MAIL $LIBS"
3494 AC_CHECK_FUNCS(touchlock)
3499 dnl Debian, at least:
3500 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
3501 if test $have_lockfile = yes; then
3502 LIBS_MAIL=-llockfile
3503 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
3505 # If we have the shared liblockfile, assume we must use it for mail
3506 # locking (e.g. Debian). If we couldn't link against liblockfile
3507 # (no liblockfile.a installed), ensure that we don't need to.
3508 dnl This works for files generally, not just executables.
3509 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3510 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
3511 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
3512 if test $ac_cv_prog_liblockfile = yes; then
3513 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3514 This probably means that movemail could lose mail.
3515 There may be a `development' package to install containing liblockfile.])
3518 AC_CHECK_HEADERS_ONCE(maillock.h)
3521 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3522 ## interlock access to the mail spool. The alternative is a lock file named
3523 ## /usr/spool/mail/$USER.lock.
3526 aix4-2) mail_lock="lockf" ;;
3528 gnu|freebsd|dragonfly|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
3530 ## On GNU/Linux systems, both methods are used by various mail programs.
3531 ## I assume most people are using newer mailers that have heard of flock.
3532 ## Change this if you need to.
3533 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
3534 ## configure gets the right answers, and that means *NOT* using flock.
3535 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3536 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
3537 ## Debian maintainer hasn't provided a clean fix for Emacs.
3538 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
3539 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3540 ## correct logic. -- fx
3541 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3542 ## liblockfile is a Free Software replacement for libmail, used on
3543 ## Debian systems and elsewhere. -rfr.
3546 if test $have_mail = yes || test $have_lockfile = yes; then
3547 test $ac_cv_header_maillock_h = yes && mail_lock=no
3552 mail_lock="none-needed" ;;
3556 case "$mail_lock" in
3557 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3559 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3563 *) BLESSMAIL_TARGET="need-blessmail" ;;
3565 AC_SUBST(BLESSMAIL_TARGET)
3568 LIBS="$LIB_PTHREAD $LIB_MATH $LIBS"
3569 AC_CHECK_FUNCS(accept4 fchdir gethostname \
3570 getrusage get_current_dir_name \
3571 lrand48 random rint \
3572 select getpagesize setlocale newlocale \
3573 getrlimit setrlimit shutdown getaddrinfo \
3574 pthread_sigmask strsignal setitimer \
3575 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
3577 getpwent endpwent getgrent endgrent \
3578 cfmakeraw cfsetspeed copysign __executable_start log2)
3581 dnl No need to check for aligned_alloc and posix_memalign if using
3582 dnl gmalloc.o, as it supplies them, unless we're using hybrid_malloc.
3583 dnl Don't use these functions on Darwin as they are incompatible with
3585 if (test -z "$GMALLOC_OBJ" || test "$hybrid_malloc" = yes) \
3586 && test "$opsys" != darwin; then
3587 AC_CHECK_FUNCS([aligned_alloc posix_memalign], [break])
3590 dnl Cannot use AC_CHECK_FUNCS
3591 AC_CACHE_CHECK([for __builtin_unwind_init],
3592 emacs_cv_func___builtin_unwind_init,
3593 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3594 emacs_cv_func___builtin_unwind_init=yes,
3595 emacs_cv_func___builtin_unwind_init=no)])
3596 if test $emacs_cv_func___builtin_unwind_init = yes; then
3597 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3598 [Define to 1 if you have the `__builtin_unwind_init' function.])
3601 AC_CHECK_HEADERS_ONCE(sys/un.h)
3606 AC_CHECK_FUNCS(grantpt)
3608 # PTY-related GNU extensions.
3609 AC_CHECK_FUNCS(getpt posix_openpt)
3611 # Check this now, so that we will NOT find the above functions in ncurses.
3612 # That is because we have not set up to link ncurses in lib-src.
3613 # It's better to believe a function is not available
3614 # than to expect to find it in ncurses.
3615 # Also we need tputs and friends to be able to build at all.
3616 AC_MSG_CHECKING([for library containing tputs])
3617 # Run a test program that contains a call to tputs, a call that is
3618 # never executed. This tests whether a pre-'main' dynamic linker
3619 # works with the library. It's too much trouble to actually call
3620 # tputs in the test program, due to portability hassles. When
3621 # cross-compiling, assume the test program will run if it links.
3622 AC_DEFUN([tputs_link_source], [
3624 [[extern void tputs (const char *, int, int (*)(int));
3625 int main (int argc, char **argv)
3628 tputs (argv[0], 0, 0);
3632 if test "${opsys}" = "mingw32"; then
3635 # Maybe curses should be tried earlier?
3636 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3637 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3639 if test -z "$tputs_library"; then
3643 LIBS_TERMCAP=-l$tputs_library
3645 LIBS="$LIBS_TERMCAP $LIBS"
3647 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3648 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3650 if test "X$msg" != Xno; then
3655 AC_MSG_RESULT([$msg])
3656 if test "X$msg" = Xno; then
3657 AC_MSG_ERROR([The required function `tputs' was not found in any library.
3658 The following libraries were tried (in order):
3659 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3660 Please try installing whichever of these libraries is most appropriate
3661 for your system, together with its header files.
3662 For example, a libncurses-dev(el) or similar package.])
3665 ## Use termcap instead of terminfo?
3666 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3668 ## FIXME? In the cases below where we unconditionally set
3669 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3670 ## if that was found above to have tputs.
3671 ## Should we use the gnu* logic everywhere?
3673 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3674 ## The ncurses library has been moved out of the System framework in
3675 ## Mac OS X 10.2. So if configure detects it, set the command-line
3676 ## option to use it.
3677 darwin) LIBS_TERMCAP="-lncurses" ;;
3679 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3682 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3683 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3684 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3685 [[#if __FreeBSD_version < 400000
3688 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3690 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3692 if test $emacs_cv_freebsd_terminfo = yes; then
3693 LIBS_TERMCAP="-lncurses"
3696 LIBS_TERMCAP="-ltermcap"
3706 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3708 LIBS_TERMCAP="-ltermcap"
3712 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
3714 ## hpux: Make sure we get select from libc rather than from libcurses
3715 ## because libcurses on HPUX 10.10 has a broken version of select.
3716 ## We used to use -lc -lcurses, but this may be cleaner.
3717 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3718 # set that way, now it uses the default). Isn't this a contradiction?
3719 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3723 TERMCAP_OBJ=tparam.o
3724 if test $TERMINFO = yes; then
3725 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3726 TERMCAP_OBJ=terminfo.o
3728 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
3729 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
3731 AC_SUBST(LIBS_TERMCAP)
3732 AC_SUBST(TERMCAP_OBJ)
3734 # GNU/Linux-specific timer functions.
3735 AC_CACHE_CHECK([for timerfd interface], [emacs_cv_have_timerfd],
3737 [AC_LANG_PROGRAM([[#include <sys/timerfd.h>
3739 [[timerfd_create (CLOCK_REALTIME,
3740 TFD_CLOEXEC | TFD_NONBLOCK);
3741 timerfd_settime (0, TFD_TIMER_ABSTIME, 0, 0);]])],
3742 [emacs_cv_have_timerfd=yes],
3743 [emacs_cv_have_timerfd=no])])
3744 if test "$emacs_cv_have_timerfd" = yes; then
3745 AC_DEFINE([HAVE_TIMERFD], 1,
3746 [Define to 1 if timerfd functions are supported as in GNU/Linux.])
3749 # Alternate stack for signal handlers.
3750 AC_CACHE_CHECK([whether signals can be handled on alternate stack],
3751 [emacs_cv_alternate_stack],
3753 [AC_LANG_PROGRAM([[#include <signal.h>
3756 struct sigaction sa;
3757 ss.ss_sp = malloc (SIGSTKSZ);
3758 ss.ss_size = SIGSTKSZ;
3759 sa.sa_flags = SA_SIGINFO | SA_ONSTACK;
3760 sigaltstack (&ss, 0);
3761 sigaction (SIGSEGV, &sa, 0);]])],
3762 [emacs_cv_alternate_stack=yes],
3763 [emacs_cv_alternate_stack=no])])
3765 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3766 # On Darwin, res_init appears not to be useful: see bug#562 and
3767 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3770 if test $opsys != darwin; then
3772 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3773 #include <arpa/nameser.h>
3774 #include <resolv.h>]],
3775 [[return res_init();]])],
3776 have_res_init=yes, have_res_init=no)
3777 if test "$have_res_init" = no; then
3779 LIBS="$LIBS -lresolv"
3780 AC_MSG_CHECKING(for res_init with -lresolv)
3781 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3782 #include <arpa/nameser.h>
3783 #include <resolv.h>]],
3784 [[return res_init();]])],
3785 have_res_init=yes, have_res_init=no)
3786 AC_MSG_RESULT($have_res_init)
3787 if test "$have_res_init" = yes ; then
3793 if test "$have_res_init" = yes; then
3794 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3798 # Do we need the Hesiod library to provide the support routines?
3799 dnl FIXME? Should we be skipping this on Darwin too?
3801 if test "$with_hesiod" != no ; then
3802 # Don't set $LIBS here -- see comments above. FIXME which comments?
3803 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3804 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3805 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3806 if test "$resolv" = yes ; then
3811 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3812 hesiod=yes, :, $RESOLVLIB)])
3814 if test x"$hesiod" = xyes; then
3820 # Do we need libresolv (due to res_init or Hesiod)?
3821 if test "$resolv" = yes && test $opsys != darwin; then
3828 # These tell us which Kerberos-related libraries to use.
3835 if test "${with_kerberos}" != no; then
3837 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3838 if test $have_com_err = yes; then
3839 COM_ERRLIB=-lcom_err
3840 LIBS="$COM_ERRLIB $LIBS"
3842 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3843 if test $have_crypto = yes; then
3845 LIBS="$CRYPTOLIB $LIBS"
3847 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3848 if test $have_k5crypto = yes; then
3849 CRYPTOLIB=-lk5crypto
3850 LIBS="$CRYPTOLIB $LIBS"
3852 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3853 if test $have_krb5=yes; then
3855 LIBS="$KRB5LIB $LIBS"
3857 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3858 if test "${with_kerberos5}" = no; then
3859 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3860 if test $have_des425 = yes; then
3862 LIBS="$DESLIB $LIBS"
3864 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3865 if test $have_des = yes; then
3867 LIBS="$DESLIB $LIBS"
3870 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3871 if test $have_krb4 = yes; then
3873 LIBS="$KRB4LIB $LIBS"
3875 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3876 if test $have_krb = yes; then
3878 LIBS="$KRB4LIB $LIBS"
3883 if test "${with_kerberos5}" != no; then
3884 AC_CHECK_HEADERS(krb5.h,
3885 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3886 [#include <krb5.h>])])
3888 AC_CHECK_HEADERS(krb.h,,
3889 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3890 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3892 AC_CHECK_HEADERS(com_err.h)
3896 AC_SUBST(COM_ERRLIB)
3902 AC_CHECK_HEADERS(valgrind/valgrind.h)
3904 AC_CHECK_FUNCS_ONCE(tzset)
3905 AC_MSG_CHECKING(whether localtime caches TZ)
3906 AC_CACHE_VAL(emacs_cv_localtime_cache,
3907 [if test x$ac_cv_func_tzset = xyes; then
3908 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3909 char TZ_GMT0[] = "TZ=GMT0";
3910 char TZ_PST8[] = "TZ=PST8";
3913 time_t now = time ((time_t *) 0);
3914 int hour_GMT0, hour_unset;
3915 if (putenv (TZ_GMT0) != 0)
3917 hour_GMT0 = localtime (&now)->tm_hour;
3919 hour_unset = localtime (&now)->tm_hour;
3920 if (putenv (TZ_PST8) != 0)
3922 if (localtime (&now)->tm_hour == hour_GMT0)
3925 if (localtime (&now)->tm_hour != hour_unset)
3928 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3929 [# If we have tzset, assume the worst when cross-compiling.
3930 emacs_cv_localtime_cache=yes])
3932 # If we lack tzset, report that localtime does not cache TZ,
3933 # since we can't invalidate the cache if we don't have tzset.
3934 emacs_cv_localtime_cache=no
3936 AC_MSG_RESULT($emacs_cv_localtime_cache)
3937 if test $emacs_cv_localtime_cache = yes; then
3938 AC_DEFINE(LOCALTIME_CACHE, 1,
3939 [Define to 1 if localtime caches TZ.])
3943 AC_CHECK_FUNC(socket, , ok_so_far=no)
3944 if test $ok_so_far = yes; then
3945 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3947 if test $ok_so_far = yes; then
3948 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3950 if test $ok_so_far = yes; then
3951 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3952 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3953 [Define to 1 if you have inet sockets.])
3958 AC_CHECK_FUNCS(snprintf)
3960 dnl Check for glib. This differs from other library checks in that
3961 dnl Emacs need not link to glib unless some other library is already
3962 dnl linking to glib. Although glib provides no facilities that Emacs
3963 dnl needs for its own purposes, when glib is present Emacs needs to
3964 dnl use primitives like g_main_context_query to avoid clashing with
3965 dnl glib at a low level.
3967 dnl Check this late, since it depends on $GTK_CFLAGS etc.
3971 CFLAGS="$CFLAGS $GTK_CFLAGS $RSVG_CFLAGS $DBUS_CFLAGS $SETTINGS_CFLAGS"
3972 LIBS="$LIBS $GTK_LIBS $RSVG_LIBS $DBUS_LIBS $SETTINGS_LIBS"
3973 CFLAGS="$CFLAGS $GFILENOTIFY_CFLAGS"
3974 LIBS="$LIBS $GFILENOTIFY_LIBS"
3975 AC_MSG_CHECKING([whether GLib is linked in])
3976 AC_LINK_IFELSE([AC_LANG_PROGRAM(
3979 [[g_print ("Hello world");]])],
3982 AC_MSG_RESULT([$links_glib])
3983 if test "${links_glib}" = "yes"; then
3984 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
3985 if test "$HAVE_NS" = no;then
3993 dnl Adapted from Haible's version.
3994 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3995 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3996 [[char* cs = nl_langinfo(CODESET);]])],
3997 emacs_cv_langinfo_codeset=yes,
3998 emacs_cv_langinfo_codeset=no)
4000 if test $emacs_cv_langinfo_codeset = yes; then
4001 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
4002 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
4007 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
4008 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
4009 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
4010 if test "$emacs_cv_c_restrict_arr" = yes; then
4011 AC_DEFINE(__restrict_arr, __restrict,
4012 [Define to compiler's equivalent of C99 restrict keyword in array
4013 declarations. Define as empty for no equivalent.])
4016 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
4017 dnl how the tty code is related to POSIX and/or other versions of termios.
4018 dnl The following looks like a useful start.
4020 dnl AC_SYS_POSIX_TERMIOS
4021 dnl if test $ac_cv_sys_posix_termios = yes; then
4022 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
4023 dnl and macros for terminal control.])
4024 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
4027 dnl Turned on June 1996 supposing nobody will mind it.
4028 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
4029 if test "${opsys}" != "mingw32"; then
4030 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
4031 in the full name stands for the login id.])
4034 dnl Everybody supports this, except MS.
4035 dnl Seems like the kind of thing we should be testing for, though.
4036 ## Note: PTYs are broken on darwin <6. Use at your own risk.
4037 if test "${opsys}" != "mingw32"; then
4038 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
4041 dnl Everybody supports this, except MS-DOS.
4042 dnl Seems like the kind of thing we should be testing for, though.
4043 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
4044 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
4045 4.2-compatible sockets.])
4047 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
4049 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
4050 a null file, or a data sink.])
4051 if test "${opsys}" = "mingw32"; then
4052 AC_DEFINE(NULL_DEVICE, ["NUL:"])
4054 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
4057 if test "${opsys}" = "mingw32"; then
4062 AC_DEFINE_UNQUOTED(SEPCHAR, ['$SEPCHAR'], [Character that separates PATH elements.])
4063 dnl This is for MinGW, and is used in test/automated/Makefile.in.
4064 dnl The MSYS Bash has heuristics for replacing ':' with ';' when it
4065 dnl decides that a command-line argument to be passed to a MinGW program
4066 dnl is a PATH-style list of directories. But that heuristics plays it
4067 dnl safe, and only does the replacement when it is _absolutely_ sure it
4068 dnl sees a colon-separated list of file names; e.g. ":." is left alone,
4069 dnl which breaks in-tree builds. So we do this manually instead.
4070 dnl Note that we cannot rely on PATH_SEPARATOR, as that one will always
4071 dnl be computed as ':' in MSYS Bash.
4074 dnl Everybody supports this, except MS-DOS.
4075 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
4077 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
4080 AC_DEFINE(DIRECTORY_SEP, ['/'],
4081 [Character that separates directories in a file name.])
4083 if test "${opsys}" = "mingw32"; then
4084 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
4085 [Returns true if character is a device separator.])
4087 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
4088 [Returns true if character is a directory separator.])
4090 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
4091 [Returns true if character is any form of separator.])
4093 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
4094 [Returns true if character is a device separator.])
4096 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
4097 [Returns true if character is a directory separator.])
4099 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
4100 [Returns true if character is any form of separator.])
4103 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
4107 dnl Unfortunately without libXmu we cannot support EditRes.
4108 if test "x$ac_cv_search_XmuConvertStandardSelection" = xno; then
4109 AC_DEFINE(NO_EDITRES, 1)
4114 dnl Assar Westerlund <assar@sics.se> says this is necessary for
4115 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
4116 AC_DEFINE(NO_EDITRES, 1)
4122 irix6-5 | sol2* | unixware )
4123 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
4124 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
4125 dnl need the constant to dimension an array. So wire in the appropriate
4127 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
4131 emacs_broken_SIGIO=no
4134 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
4135 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
4136 hpux* | irix6-5 | openbsd | sol2* | unixware )
4137 emacs_broken_SIGIO=yes
4141 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
4142 dnl the way this system works, libc functions that return malloced
4143 dnl memory use the libc malloc implementation. Calling xfree or
4144 dnl xrealloc on the results of such functions results in a crash.
4146 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
4147 dnl but that does not currently work on this system.
4149 dnl It is possible to completely override the malloc implementation on
4150 dnl AIX, but that involves putting the malloc functions in a shared
4151 dnl library and setting the MALLOCTYPE environment variable to point to
4152 dnl that shared library.
4154 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
4155 dnl to avoid a crash just use the Emacs implementation for that function.
4157 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
4158 dnl of this file, so that we do not check for get_current_dir_name
4159 dnl on AIX. But that might be fragile if something else ends
4160 dnl up testing for get_current_dir_name as a dependency.
4161 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
4162 get_current_dir_name should not be used.])
4166 dnl Circumvent a bug in FreeBSD. In the following sequence of
4167 dnl writes/reads on a PTY, read(2) returns bogus data:
4169 dnl write(2) 1022 bytes
4170 dnl write(2) 954 bytes, get EAGAIN
4171 dnl read(2) 1024 bytes in process_read_output
4172 dnl read(2) 11 bytes in process_read_output
4174 dnl That is, read(2) returns more bytes than have ever been written
4175 dnl successfully. The 1033 bytes read are the 1022 bytes written
4176 dnl successfully after processing (for example with CRs added if the
4177 dnl terminal is set up that way which it is here). The same bytes will
4178 dnl be seen again in a later read(2), without the CRs.
4179 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
4180 work around an issue when reading from a PTY.])
4186 dnl FIXME Can't we test if this exists (eg /proc/$$)?
4187 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
4192 darwin | dragonfly | freebsd | netbsd | openbsd )
4193 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
4194 close a pty to make it a controlling terminal (it is already a
4195 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
4199 dnl FIXME Surely we can test for this rather than hard-code it.
4201 netbsd | openbsd) sound_device="/dev/audio" ;;
4202 *) sound_device="/dev/dsp" ;;
4206 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
4207 [Name of the default sound device.])
4210 dnl Emacs can read input using SIGIO and buffering characters itself,
4211 dnl or using CBREAK mode and making C-g cause SIGINT.
4212 dnl The choice is controlled by the variable interrupt_input.
4214 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
4216 dnl Emacs uses the presence of the USABLE_SIGIO macro
4217 dnl to indicate whether or not signal-driven I/O is possible. It uses
4218 dnl INTERRUPT_INPUT to decide whether to use it by default.
4220 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
4221 dnl CBREAK mode has two disadvantages
4222 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
4223 dnl I hear that in system V this problem does not exist.
4224 dnl 2) Control-G causes output to be discarded.
4225 dnl I do not know whether this can be fixed in system V.
4227 dnl Another method of doing input is planned but not implemented.
4228 dnl It would have Emacs fork off a separate process
4229 dnl to read the input and send it to the true Emacs process
4232 darwin | gnu-linux | gnu-kfreebsd )
4233 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
4238 dnl If the system's imake configuration file defines `NeedWidePrototypes'
4239 dnl as `NO', we must define NARROWPROTO manually. Such a define is
4240 dnl generated in the Makefile generated by `xmkmf'. If we don't define
4241 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
4242 dnl taking float or double parameters.
4244 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
4245 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
4246 file defines `NeedWidePrototypes' as `NO'.])
4251 dnl Used in process.c, this must be a loop, even if it only runs once.
4252 dnl (Except on SGI; see below. Take that, clarity and consistency!)
4253 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
4254 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
4255 dnl trying suffixes 0-16.
4256 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
4257 first PTY, if PTYs are supported.])
4258 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
4259 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
4260 end of a PTY, if non-standard.])
4261 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
4262 end of a PTY, if non-standard.])
4266 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4267 dnl You allocate a pty by opening /dev/ptc to get the master side.
4268 dnl To get the name of the slave side, you just ttyname() the master side.
4269 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4270 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4274 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4275 dnl multi-line AC_DEFINEs are hard. :(
4276 AC_DEFINE(PTY_OPEN, [ do { int dummy; sigset_t blocked, procmask; sigemptyset (&blocked); sigaddset (&blocked, SIGCHLD); pthread_sigmask (SIG_BLOCK, &blocked, &procmask); if (-1 == openpty (&fd, &dummy, pty_name, 0, 0)) fd = -1; pthread_sigmask (SIG_SETMASK, &procmask, 0); if (fd >= 0) emacs_close (dummy); } while (false)])
4277 AC_DEFINE(PTY_NAME_SPRINTF, [])
4278 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4281 dnl FIXME? Maybe use same as freebsd - see bug#12040.
4283 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4284 dnl Not used, because PTY_ITERATION is defined.
4285 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4286 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
4287 dnl But we don't have to block SIGCHLD because it is blocked in the
4288 dnl implementation of grantpt.
4289 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (false)])
4290 AC_DEFINE(PTY_NAME_SPRINTF, [])
4291 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4295 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4298 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd )
4300 if test "x$ac_cv_func_grantpt" = xyes; then
4301 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4302 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4303 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4304 dnl to prevent sigchld_handler from intercepting the child's death.
4305 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptyname = 0; sigset_t blocked; sigemptyset (&blocked); sigaddset (&blocked, SIGCHLD); pthread_sigmask (SIG_BLOCK, &blocked, 0); if (grantpt (fd) != -1 && unlockpt (fd) != -1) ptyname = ptsname(fd); pthread_sigmask (SIG_UNBLOCK, &blocked, 0); if (!ptyname) { emacs_close (fd); return -1; } snprintf (pty_name, PTY_NAME_SIZE, "%s", ptyname); }])
4306 dnl if HAVE_POSIX_OPENPT
4307 if test "x$ac_cv_func_posix_openpt" = xyes; then
4308 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (false)])
4309 AC_DEFINE(PTY_NAME_SPRINTF, [])
4311 elif test "x$ac_cv_func_getpt" = xyes; then
4312 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4313 AC_DEFINE(PTY_NAME_SPRINTF, [])
4315 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4318 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4323 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4324 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4325 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4329 dnl It looks like this cannot be right, because it is not a loop.
4330 dnl However, process.c actually does this:
4336 dnl which presumably makes it OK, since irix == sgi (?).
4337 dnl FIXME it seems like this special treatment is unnecessary?
4338 dnl Why can't irix use a single-trip loop like eg cygwin?
4339 AC_DEFINE(PTY_ITERATION, [])
4340 dnl Not used, because PTY_ITERATION is defined.
4341 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
4342 AC_DEFINE(PTY_OPEN, [ { struct sigaction ocstat, cstat; struct stat stb; char * name; sigemptyset(&cstat.sa_mask); cstat.sa_handler = SIG_DFL; cstat.sa_flags = 0; sigaction(SIGCHLD, &cstat, &ocstat); name = _getpty (&fd, O_RDWR | O_NDELAY, 0600, 0); sigaction(SIGCHLD, &ocstat, (struct sigaction *)0); if (name == 0) return -1; if (fd < 0) return -1; if (fstat (fd, &stb) < 0) return -1; strcpy (pty_name, name); }])
4343 dnl No need to get the pty name at all.
4344 AC_DEFINE(PTY_NAME_SPRINTF, [])
4345 dnl No need to use sprintf to get the tty name--we get that from _getpty.
4346 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4350 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
4351 dnl from intercepting that death. If any child but grantpt's should die
4352 dnl within, it should be caught after sigrelse(2).
4353 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptsname (int), *ptyname; int grantpt_result; sigset_t blocked; sigemptyset (&blocked); sigaddset (&blocked, SIGCHLD); pthread_sigmask (SIG_BLOCK, &blocked, 0); grantpt_result = grantpt (fd); pthread_sigmask (SIG_UNBLOCK, &blocked, 0); if (grantpt_result == -1 || unlockpt (fd) == -1 || !(ptyname = ptsname (fd))) { emacs_close (fd); return -1; } snprintf (pty_name, PTY_NAME_SIZE, "%s", ptyname); }])
4357 dnl Comments are as per sol2*.
4358 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptsname (int), *ptyname; int grantpt_result; sigset_t blocked; sigemptyset (&blocked); sigaddset (&blocked, SIGCHLD); pthread_sigmask (SIG_BLOCK, &blocked, 0); grantpt_result = grantpt (fd); pthread_sigmask (SIG_UNBLOCK, &blocked, 0); if (grantpt_result == -1) fatal("could not grant slave pty"); if (unlockpt(fd) == -1) fatal("could not unlock slave pty"); if (!(ptyname = ptsname(fd))) fatal ("could not enable slave pty"); snprintf (pty_name, PTY_NAME_SIZE, "%s", ptyname); }])
4365 dnl This change means that we don't loop through allocate_pty too
4366 dnl many times in the (rare) event of a failure.
4367 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4368 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4369 dnl Push various streams modules onto a PTY channel. Used in process.c.
4370 AC_DEFINE(SETUP_SLAVE_PTY, [if (ioctl (xforkin, I_PUSH, "ptem") == -1) fatal ("ioctl I_PUSH ptem"); if (ioctl (xforkin, I_PUSH, "ldterm") == -1) fatal ("ioctl I_PUSH ldterm"); if (ioctl (xforkin, I_PUSH, "ttcompat") == -1) fatal ("ioctl I_PUSH ttcompat");], [How to set up a slave PTY, if needed.])
4375 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4376 "typing" a signal character on the pty.])
4379 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4380 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
4381 aix4-2 | cygwin | gnu | irix6-5 | dragonfly | freebsd | netbsd | openbsd | darwin )
4382 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4385 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4386 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4387 gnu-linux | gnu-kfreebsd )
4389 AC_MSG_CHECKING([for signals via characters])
4390 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4391 #include <linux/version.h>
4392 #if LINUX_VERSION_CODE < 0x20400
4393 # error "Linux version too old"
4395 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4397 AC_MSG_RESULT([$emacs_signals_via_chars])
4398 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4403 AH_TEMPLATE(TAB3, [Undocumented.])
4406 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4408 gnu | dragonfly | freebsd | netbsd | openbsd )
4409 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4410 AC_DEFINE(TAB3, OXTABS)
4413 gnu-linux | gnu-kfreebsd )
4414 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4418 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4419 [do { extern void *__libc_ia64_register_backing_store_base; __builtin_ia64_flushrs (); mark_memory (__libc_ia64_register_backing_store_base, __builtin_ia64_bsp ());} while (false)],
4420 [Mark a secondary stack, like the register stack on the ia64.]), [])
4424 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4425 run_time_remap; for HPUX.])
4430 dnl This won't be used automatically yet. We also need to know, at least,
4431 dnl that the stack is continuous.
4432 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4433 registers relevant for conservative garbage collection in the jmp_buf.])
4437 dnl Not all the architectures are tested, but there are Debian packages
4438 dnl for SCM and/or Guile on them, so the technique must work. See also
4439 dnl comments in alloc.c concerning setjmp and gcc.
4440 dnl Fixme: it's probably safe to just use the GCC conditional below.
4441 gnu-linux | gnu-kfreebsd )
4442 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4443 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4444 || defined __alpha__ || defined __mips__ || defined __s390__ \
4445 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4446 || defined __ia64__ || defined __sh__
4449 # error "setjmp not known to work on this arch"
4451 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4456 if test x$GCC = xyes; then
4457 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4458 AC_DEFINE(GC_SETJMP_WORKS, 1)
4461 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
4462 aix* | dragonfly | freebsd | netbsd | openbsd | irix6-5 | sol2* )
4463 AC_DEFINE(GC_SETJMP_WORKS, 1)
4468 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4469 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4472 [[#include <setjmp.h>
4474 # define _longjmp longjmp
4479 _longjmp (j, 1);]])],
4480 [emacs_cv_func__setjmp=yes],
4481 [emacs_cv_func__setjmp=no])])
4482 if test $emacs_cv_func__setjmp = yes; then
4483 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4486 # We need to preserve signal mask to handle C stack overflows.
4487 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4490 [[#include <setjmp.h>
4493 if (! sigsetjmp (j, 1))
4494 siglongjmp (j, 1);]])],
4495 [emacs_cv_func_sigsetjmp=yes],
4496 [emacs_cv_func_sigsetjmp=no])])
4497 if test $emacs_cv_func_sigsetjmp = yes; then
4498 AC_DEFINE([HAVE_SIGSETJMP], 1,
4499 [Define to 1 if sigsetjmp and siglongjmp work.])
4502 # We need all of these features to handle C stack overflows.
4503 if test "$ac_cv_header_sys_resource_h" = "yes" -a \
4504 "$ac_cv_func_getrlimit" = "yes" -a \
4505 "$emacs_cv_func_sigsetjmp" = "yes" -a \
4506 "$emacs_cv_alternate_stack" = yes; then
4507 AC_DEFINE([HAVE_STACK_OVERFLOW_HANDLING], 1,
4508 [Define to 1 if C stack overflow can be handled in some cases.])
4513 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4514 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4515 dnl and this is all we need.
4516 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4523 dnl Used in xfaces.c.
4524 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4525 some systems, where it requires time.h.])
4530 dnl Define symbols to identify the version of Unix this is.
4531 dnl Define all the symbols that apply correctly.
4532 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4533 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4534 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4535 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4540 dnl This symbol should be defined on AIX Version 3 ???????
4541 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4543 # error "_AIX not defined"
4545 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4549 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4553 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
4554 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4555 dnl distinguish OS X from pure Darwin.
4556 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4559 gnu-linux | gnu-kfreebsd )
4561 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4566 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4571 AC_DEFINE(USG5_4, [])
4572 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4576 AC_DEFINE(DOS_NT, [])
4577 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4578 if test "x$ac_enable_checking" != "x" ; then
4579 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4585 AC_DEFINE(USG5_4, [])
4586 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4591 AC_DEFINE(USG5_4, [])
4595 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4598 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4599 emacs_cv_usable_FIONREAD=no
4603 emacs_cv_usable_FIONREAD=yes
4608 [AC_LANG_PROGRAM([[#include <sys/types.h>
4609 #include <sys/ioctl.h>
4611 # include <sys/filio.h>
4614 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4615 [emacs_cv_usable_FIONREAD=yes],
4616 [emacs_cv_usable_FIONREAD=no])
4619 if test $emacs_cv_usable_FIONREAD = yes; then
4620 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4622 if test $emacs_broken_SIGIO = no; then
4623 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4625 [AC_LANG_PROGRAM([[#include <fcntl.h>
4628 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4629 [emacs_cv_usable_SIGIO=yes],
4630 [emacs_cv_usable_SIGIO=no])],
4631 [emacs_cv_usable_SIGIO=yes],
4632 [emacs_cv_usable_SIGIO=no])
4633 if test $emacs_cv_usable_SIGIO = yes; then
4634 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4641 dnl It works to open the pty's tty in the parent (Emacs), then
4642 dnl close and reopen it in the child.
4643 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4644 works to open a pty's tty in the parent process, then close and
4645 reopen it in the child.])
4649 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4650 use VSUSP instead of VSWTCH.])
4654 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4659 # Set up the CFLAGS for real compilation, so we can substitute it.
4660 CFLAGS="$REAL_CFLAGS"
4661 CPPFLAGS="$REAL_CPPFLAGS"
4664 ## Hack to detect a buggy GCC version.
4665 if test "x$GCC" = xyes \
4666 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4667 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4668 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4669 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4672 version=$PACKAGE_VERSION
4674 copyright="Copyright (C) 2014 Free Software Foundation, Inc."
4675 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4676 [Short copyright string for this version of Emacs.])
4679 ### Specify what sort of things we'll be editing into Makefile and config.h.
4680 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4682 AC_SUBST(configuration)
4687 AC_SUBST(exec_prefix)
4690 AC_SUBST(sharedstatedir)
4691 AC_SUBST(libexecdir)
4695 AC_SUBST(standardlisppath)
4696 AC_SUBST(locallisppath)
4698 AC_SUBST(x_default_search_path)
4700 AC_SUBST(archlibdir)
4705 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4706 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4707 ## end of LIBX_BASE, but nothing ever set it.
4708 AC_SUBST(LD_SWITCH_X_SITE)
4709 AC_SUBST(C_SWITCH_X_SITE)
4710 AC_SUBST(GNUSTEP_CFLAGS)
4712 ## Used in lwlib/Makefile.in.
4713 AC_SUBST(X_TOOLKIT_TYPE)
4715 AC_SUBST(ns_appbindir)
4716 AC_SUBST(ns_appresdir)
4718 AC_SUBST(GNU_OBJC_CFLAGS)
4719 AC_SUBST(OTHER_FILES)
4721 if test -n "${term_header}"; then
4722 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4723 [Define to the header for the built-in window system.])
4726 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4727 [Define to the canonical Emacs configuration name.])
4728 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4729 [Define to the options passed to configure.])
4730 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4731 define this to include extra configuration information.])
4735 AC_DEFINE(config_opsysfile, <ms-w32.h>, [])
4742 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4743 AC_DEFINE(HAVE_X_WINDOWS, 1,
4744 [Define to 1 if you want to use the X window system.])
4746 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4748 if test "$HAVE_XFT" = "yes"; then
4749 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4750 elif test "$HAVE_FREETYPE" = "yes"; then
4751 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4761 if test "${USE_X_TOOLKIT}" != "none" ; then
4763 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4764 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4765 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4766 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4767 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4771 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4772 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4776 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4777 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4778 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4782 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4783 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4786 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4789 AC_SUBST(WIDGET_OBJ)
4792 case "$USE_X_TOOLKIT" in
4793 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4794 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4795 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4797 AC_SUBST(TOOLKIT_LIBW)
4799 if test "${opsys}" != "mingw32"; then
4800 if test "$USE_X_TOOLKIT" = "none"; then
4801 LIBXT_OTHER="\$(LIBXSM)"
4803 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4806 AC_SUBST(LIBXT_OTHER)
4808 if test "${HAVE_X11}" = "yes" ; then
4809 AC_DEFINE(HAVE_X11, 1,
4810 [Define to 1 if you want to use version 11 of X windows.])
4811 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4815 AC_SUBST(LIBX_OTHER)
4817 if test "$HAVE_GTK" = yes || test "$HAVE_X11" != yes; then
4819 elif test "$USE_X_TOOLKIT" = none; then
4820 LIBXMENU='$(oldXMenudir)/libXMenu11.a'
4822 LIBXMENU='$(lwlibdir)/liblw.a'
4826 if test "${GNU_MALLOC}" = "yes" ; then
4827 AC_DEFINE(GNU_MALLOC, 1,
4828 [Define to 1 if you want to use the GNU memory allocator.])
4832 if test "${REL_ALLOC}" = "yes" ; then
4833 AC_DEFINE(REL_ALLOC, 1,
4834 [Define REL_ALLOC if you want to use the relocating allocator for
4837 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4839 AC_SUBST(RALLOC_OBJ)
4841 if test "$opsys" = "cygwin"; then
4842 CYGWIN_OBJ="sheap.o cygw32.o"
4843 ## Cygwin differs because of its unexec().
4845 POST_ALLOC_OBJ=lastfile.o
4846 elif test "$opsys" = "mingw32"; then
4849 POST_ALLOC_OBJ=lastfile.o
4852 PRE_ALLOC_OBJ=lastfile.o
4855 AC_SUBST(CYGWIN_OBJ)
4856 AC_SUBST(PRE_ALLOC_OBJ)
4857 AC_SUBST(POST_ALLOC_OBJ)
4859 dnl Call this 'FORTIFY_SOUR' so that it sorts before the 'FORTIFY_SOURCE'
4860 dnl verbatim defined above. The tricky name is apropos, as this hack
4861 dnl makes Fortify go sour!
4862 AH_VERBATIM([FORTIFY_SOUR],
4863 [/* Without the following workaround, Emacs runs slowly on OS X 10.8.
4864 The workaround disables some useful run-time checking, so it
4865 should be conditional to the platforms with the performance bug.
4866 Perhaps Apple will fix this some day; also see m4/extern-inline.m4. */
4867 #if defined __APPLE__ && defined __GNUC__
4868 # ifndef _DONT_USE_CTYPE_INLINE_
4869 # define _DONT_USE_CTYPE_INLINE_
4871 # ifndef _FORTIFY_SOURCE
4872 # define _FORTIFY_SOURCE 0
4877 # If user asks to omit features, disable optional features that gnulib
4878 # might otherwise enable.
4879 if test "$with_features" = no && test "$enable_acl" != yes; then
4883 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4884 # it temporarily reverts them to their pre-pkg-config values,
4885 # because gnulib needs to work with both src (which uses the
4886 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4887 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4888 # and it therefore needs to run in an environment where LIBS does not
4889 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4890 # for some package unrelated to lib-src.
4893 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4894 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4895 gl_ASSERT_NO_GNULIB_POSIXCHECK
4896 gl_ASSERT_NO_GNULIB_TESTS
4901 if test "${opsys}" = "mingw32"; then
4902 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I \${abs_top_srcdir}/nt/inc"
4903 # Remove unneeded switches from the value of CC that goes to Makefiles
4904 CC=`echo $CC | sed -e "s,$GCC_TEST_OPTIONS,,"`
4908 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4911 ## The -headerpad option tells ld (see man page) to leave room at the
4912 ## end of the header for adding load commands. Needed for dumping.
4913 ## 0x690 is the total size of 30 segment load commands (at 56
4914 ## each); under Cocoa 31 commands are required.
4915 if test "$HAVE_NS" = "yes"; then
4916 libs_nsgui="-framework AppKit"
4917 if test "$NS_IMPL_COCOA" = "yes"; then
4918 libs_nsgui="$libs_nsgui -framework IOKit"
4925 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4927 ## This is here because src/Makefile.in did some extra fiddling around
4928 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
4929 ## LD_SWITCH_SYSTEM_TEMACS instead,
4930 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4931 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4934 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4935 ## find X at run-time.
4936 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4937 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4938 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4939 ## had different values in configure (in ac_link) and src/Makefile.in.
4940 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4941 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4944 ## Is it any better under MinGW64 to relocate emacs into higher addresses?
4945 case "$canonical" in
4946 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x400000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4947 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4951 openbsd) LD_SWITCH_SYSTEM_TEMACS='-nopie' ;;
4953 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4956 if test x$ac_enable_profiling != x ; then
4958 *freebsd | gnu-linux) ;;
4959 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
4963 LD_SWITCH_SYSTEM_TEMACS="$LDFLAGS_NOCOMBRELOC $LD_SWITCH_SYSTEM_TEMACS"
4965 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4967 ## Common for all window systems
4968 if test "$window_system" != "none"; then
4969 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4970 AC_DEFINE(POLL_FOR_INPUT, 1, [Define if you poll periodically to detect C-g.])
4971 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4974 AC_SUBST(WINDOW_SYSTEM_OBJ)
4976 AH_TOP([/* GNU Emacs site configuration template file.
4978 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2014
4979 Free Software Foundation, Inc.
4981 This file is part of GNU Emacs.
4983 GNU Emacs is free software: you can redistribute it and/or modify
4984 it under the terms of the GNU General Public License as published by
4985 the Free Software Foundation, either version 3 of the License, or
4986 (at your option) any later version.
4988 GNU Emacs is distributed in the hope that it will be useful,
4989 but WITHOUT ANY WARRANTY; without even the implied warranty of
4990 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4991 GNU General Public License for more details.
4993 You should have received a copy of the GNU General Public License
4994 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4997 /* No code in Emacs #includes config.h twice, but some bits of code
4998 intended to work with other packages as well (like gmalloc.c)
4999 think they can include it as many times as they like. */
5000 #ifndef EMACS_CONFIG_H
5001 #define EMACS_CONFIG_H
5004 AH_BOTTOM([#include <conf_post.h>
5006 #endif /* EMACS_CONFIG_H */
5015 #### Report on what we decided to do.
5016 #### Report GTK as a toolkit, even if it doesn't use Xt.
5017 #### It makes printing result more understandable as using GTK sets
5018 #### toolkit_scroll_bars to yes by default.
5019 if test "${HAVE_GTK}" = "yes"; then
5020 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
5023 if test $USE_ACL -ne 0; then
5024 ACL_SUMMARY="yes $LIB_ACL"
5030 Configured for \`${canonical}'.
5032 Where should the build process find the source code? ${srcdir}
5033 What compiler should emacs be built with? ${CC} ${CFLAGS}
5034 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
5035 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
5036 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
5037 What window system should Emacs use? ${window_system}
5038 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
5040 if test -n "${x_includes}"; then
5041 echo " Where do we find X Windows header files? ${x_includes}"
5043 echo " Where do we find X Windows header files? Standard dirs"
5045 if test -n "${x_libraries}"; then
5046 echo " Where do we find X Windows libraries? ${x_libraries}"
5048 echo " Where do we find X Windows libraries? Standard dirs"
5052 emacs_config_features=
5053 for opt in XAW3D XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS \
5054 GCONF GSETTINGS NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT \
5058 NOTIFY|ACL) eval val=\${${opt}_SUMMARY} ;;
5059 *) eval val=\${HAVE_$opt} ;;
5061 test x"$val" = xno && continue
5062 AS_VAR_APPEND([emacs_config_features], ["$optsep$opt"])
5065 AC_DEFINE_UNQUOTED(EMACS_CONFIG_FEATURES, "${emacs_config_features}",
5066 [Summary of some of the main features enabled by configure.])
5068 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
5069 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
5070 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
5071 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
5072 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
5073 echo " Does Emacs use a png library? ${HAVE_PNG} $LIBPNG"
5074 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
5075 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
5077 echo " Does Emacs support sound? ${HAVE_SOUND}"
5079 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
5080 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
5081 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
5082 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
5083 echo " Does Emacs use a file notification library? ${NOTIFY_SUMMARY}"
5084 echo " Does Emacs use access control lists? ${ACL_SUMMARY}"
5085 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
5086 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
5087 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
5089 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
5090 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
5091 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
5092 echo " Does Emacs use -lxft? ${HAVE_XFT}"
5093 echo " Does Emacs directly use zlib? ${HAVE_ZLIB}"
5095 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
5098 if test -n "${EMACSDATA}"; then
5099 echo " Environment variable EMACSDATA set to: $EMACSDATA"
5101 if test -n "${EMACSDOC}"; then
5102 echo " Environment variable EMACSDOC set to: $EMACSDOC"
5107 if test "$HAVE_NS" = "yes"; then
5109 echo "You must run \"${MAKE-make} install\" in order to test the built application.
5110 The installed application will go to nextstep/Emacs.app and can be
5111 run or moved from there."
5112 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
5113 echo "The application will be fully self-contained."
5115 echo "The lisp resources for the application will be installed under ${prefix}.
5116 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
5117 to run if these resources are not installed."
5122 if test "${opsys}" = "cygwin"; then
5124 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
5130 # Remove any trailing slashes in these variables.
5131 [test "${prefix}" != NONE &&
5132 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
5133 test "${exec_prefix}" != NONE &&
5134 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
5136 if test "$HAVE_NS" = "yes"; then
5137 if test "$NS_IMPL_GNUSTEP" = yes; then
5138 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
5139 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
5140 ns_check_file=Resources/Info-gnustep.plist
5142 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
5143 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
5144 ns_check_file=Contents/Info.plist
5146 AC_SUBST(ns_check_file)
5149 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
5150 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
5151 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
5152 dnl (else you get "no `Makefile.am' found for any configure output").
5153 dnl This will work, but you get a config.status that is not quite right
5154 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
5155 dnl That doesn't have any obvious consequences for Emacs, but on the whole
5156 dnl it seems better to just live with the duplication.
5157 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile nt/Makefile"
5159 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
5160 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
5161 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
5162 leim/Makefile nextstep/Makefile nt/Makefile])
5164 dnl test/ is not present in release tarfiles.
5165 opt_makefile=test/automated/Makefile
5167 if test -f "$srcdir/$opt_makefile.in"; then
5168 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
5169 dnl Again, it's best not to use a variable. Though you can add
5170 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
5171 AC_CONFIG_FILES([test/automated/Makefile])
5175 dnl The admin/ directory used to be excluded from tarfiles.
5176 if test -d $srcdir/admin; then
5177 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES admin/unidata/Makefile admin/grammars/Makefile"
5178 AC_CONFIG_FILES([admin/unidata/Makefile])
5179 AC_CONFIG_FILES([admin/grammars/Makefile])
5183 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
5185 AC_SUBST(SUBDIR_MAKEFILES_IN)
5187 dnl You might wonder (I did) why epaths.h is generated by running make,
5188 dnl rather than just letting configure generate it from epaths.in.
5189 dnl One reason is that the various paths are not fully expanded (see above);
5190 dnl eg gamedir=${prefix}/var/games/emacs.
5191 dnl Secondly, the GNU Coding standards require that one should be able
5192 dnl to run `make prefix=/some/where/else' and override the values set
5193 dnl by configure. This also explains the `move-if-change' test and
5194 dnl the use of force in the `epaths-force' rule in Makefile.in.
5195 AC_CONFIG_COMMANDS([src/epaths.h], [
5196 if test "${opsys}" = "mingw32"; then
5197 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
5199 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
5200 fi || AC_MSG_ERROR(['src/epaths.h' could not be made.])
5201 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
5203 dnl NB we have to cheat and use the ac_... version because abs_top_srcdir
5204 dnl is not yet set, sigh. Or we could use ../$srcdir/src/.gdbinit,
5206 AC_CONFIG_COMMANDS([src/.gdbinit], [
5207 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
5208 echo "source $ac_abs_top_srcdir/src/.gdbinit" > src/.gdbinit
5214 test "$MAKE" = make || AC_MSG_NOTICE([Now you can run '$MAKE'.])