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, 1999-2012 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 AC_INIT(emacs, 24.3.50)
26 AC_CONFIG_HEADER(src/config.h:src/config.in)
27 AC_CONFIG_SRCDIR(src/lisp.h)
28 AC_CONFIG_AUX_DIR(build-aux)
29 dnl Fairly arbitrary, older versions might work too.
30 AM_INIT_AUTOMAKE(1.11)
32 dnl Support for --program-prefix, --program-suffix and
33 dnl --program-transform-name options
36 dnl It is important that variables on the RHS not be expanded here,
37 dnl hence the single quotes. This is per the GNU coding standards, see
38 dnl (autoconf) Installation Directory Variables
39 dnl See also epaths.h below.
40 lispdir='${datadir}/emacs/${version}/lisp'
41 leimdir='${datadir}/emacs/${version}/leim'
42 standardlisppath='${lispdir}:${leimdir}'
43 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
44 '${datadir}/emacs/site-lisp'
45 lisppath='${locallisppath}:${standardlisppath}'
46 etcdir='${datadir}/emacs/${version}/etc'
47 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
48 docdir='${datadir}/emacs/${version}/etc'
49 gamedir='${localstatedir}/games/emacs'
51 dnl Special option to disable the most of other options.
53 [AS_HELP_STRING([--without-all],
54 [omit almost all features and build
55 small executable with minimal dependencies])],
56 with_features=$withval,
59 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
60 dnl Create a new --with option that defaults to being disabled.
61 dnl NAME is the base name of the option. The shell variable with_NAME
62 dnl will be set to either the user's value (if the option is
63 dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
64 dnl option is not specified). Note that the shell variable name is
65 dnl constructed as autoconf does, by replacing non-alphanumeric
66 dnl characters with "_".
67 dnl HELP-STRING is the help text for the option.
68 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
69 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
70 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
73 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
74 dnl Create a new --with option that defaults to $enable_features.
75 dnl NAME is the base name of the option. The shell variable with_NAME
76 dnl will be set either to 'no' (for a plain --without-NAME) or to
77 dnl 'yes' (if the option is not specified). Note that the shell
78 dnl variable name is constructed as autoconf does, by replacing
79 dnl non-alphanumeric characters with "_".
80 dnl HELP-STRING is the help text for the option.
81 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
82 AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
83 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=$with_features])dnl
86 OPTION_DEFAULT_ON([pop],[don't support POP mail retrieval with movemail])
87 if test "$with_pop" = yes; then
88 AC_DEFINE(MAIL_USE_POP)
90 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
92 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
93 if test "$with_kerberos" != no; then
97 [Define to support Kerberos-authenticated POP mail retrieval.])dnl
99 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
100 if test "${with_kerberos5}" != no; then
101 if test "${with_kerberos}" = no; then
105 AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
108 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
109 dnl FIXME hesiod support may not be present, so it seems like an error
110 dnl to define, or at least use, this unconditionally.
111 if test "$with_hesiod" != no; then
112 AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
115 OPTION_DEFAULT_OFF([mmdf],[support MMDF mailboxes])
116 if test "$with_mmdf" != no; then
117 AC_DEFINE(MAIL_USE_MMDF, 1, [Define to support MMDF mailboxes in movemail.])
120 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
121 if test "$with_mail_unlink" != no; then
122 AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
125 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
126 [string giving default POP mail host])],
127 AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
129 OPTION_DEFAULT_ON([sound],[don't compile with sound support])
131 dnl FIXME currently it is not the last.
132 dnl This should be the last --with option, because --with-x is
133 dnl added later on when we find the file name of X, and it's best to
134 dnl keep them together visually.
135 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
136 [use an X toolkit (KIT one of: yes or gtk, gtk2, gtk3, lucid or athena, motif, no)])],
137 [ case "${withval}" in
138 y | ye | yes ) val=gtk ;;
140 l | lu | luc | luci | lucid ) val=lucid ;;
141 a | at | ath | athe | athen | athena ) val=athena ;;
142 m | mo | mot | moti | motif ) val=motif ;;
143 g | gt | gtk ) val=gtk ;;
147 AC_MSG_ERROR([`--with-x-toolkit=$withval' is invalid;
148 this option's value should be `yes', `no', `lucid', `athena', `motif', `gtk',
149 `gtk2' or `gtk3'. `yes' and `gtk' are synonyms.
150 `athena' and `lucid' are synonyms.])
156 OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit)])
157 if test "$with_wide_int" = yes; then
158 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
161 dnl _ON results in a '--without' option in the --help output, so
162 dnl the help text should refer to "don't compile", etc.
163 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
164 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
165 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
166 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
167 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
168 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
169 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
170 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
172 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
173 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
174 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
176 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
177 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
178 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
179 OPTION_DEFAULT_OFF([ns],[use NeXTstep (Cocoa or GNUstep) windowing system])
180 OPTION_DEFAULT_OFF([w32], [use native MS Windows GUI])
182 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
183 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
184 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
185 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
186 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
187 OPTION_DEFAULT_ON([acl],[don't compile with ACL support])
188 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
189 OPTION_DEFAULT_ON([inotify],[don't compile with inotify (file-watch) support])
191 ## For the times when you want to build Emacs but don't have
192 ## a suitable makeinfo, and can live without the manuals.
193 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
194 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
196 ## Makefile.in needs the cache file name.
199 ## This is an option because I do not know if all info/man support
200 ## compressed files, nor how to test if they do so.
201 OPTION_DEFAULT_ON([compress-info],[don't compress the installed Info pages])
202 if test $with_compress_info = yes; then
209 AC_ARG_WITH([pkg-config-prog],dnl
210 [AS_HELP_STRING([--with-pkg-config-prog=FILENAME],
211 [file name of pkg-config for finding GTK and librsvg])])
212 if test "X${with_pkg_config_prog}" != X; then
213 if test "${with_pkg_config_prog}" != yes; then
214 PKG_CONFIG="${with_pkg_config_prog}"
219 AC_ARG_WITH([crt-dir],dnl
220 [AS_HELP_STRING([--with-crt-dir=DIR],[directory containing crtn.o etc.
221 The default is /usr/lib, or /usr/lib64 on some platforms.])])
222 CRT_DIR="${with_crt_dir}"
224 AC_ARG_WITH(gameuser,dnl
225 [AS_HELP_STRING([--with-gameuser=USER],[user for shared game score files])])
226 test "X${with_gameuser}" != X && test "${with_gameuser}" != yes \
227 && gameuser="${with_gameuser}"
228 test "X$gameuser" = X && gameuser=games
230 AC_ARG_WITH([gnustep-conf],dnl
231 [AS_HELP_STRING([--with-gnustep-conf=FILENAME],
232 [name of GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
233 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
234 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
235 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
236 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
238 AC_ARG_ENABLE(ns-self-contained,
239 [AS_HELP_STRING([--disable-ns-self-contained],
240 [disable self contained build under NeXTstep])],
241 EN_NS_SELF_CONTAINED=$enableval,
242 EN_NS_SELF_CONTAINED=yes)
244 AC_ARG_ENABLE(locallisppath,
245 [AS_HELP_STRING([--enable-locallisppath=PATH],
246 [directories Emacs should search for lisp files specific
248 if test "${enableval}" = "no"; then
250 elif test "${enableval}" != "yes"; then
251 locallisppath=${enableval}
254 AC_ARG_ENABLE(checking,
255 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
256 [enable expensive run-time checks. With LIST,
257 enable only specific categories of checks.
258 Categories are: all,yes,no.
259 Flags are: stringbytes, stringoverrun, stringfreelist,
260 xmallocoverrun, conslist, glyphs])],
261 [ac_checking_flags="${enableval}"],[])
262 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
263 for check in $ac_checking_flags
266 # these set all the flags to specific states
267 yes) ac_enable_checking=1 ;;
268 no) ac_enable_checking= ;
269 ac_gc_check_stringbytes= ;
270 ac_gc_check_string_overrun= ;
271 ac_gc_check_string_free_list= ;
272 ac_xmalloc_overrun= ;
273 ac_gc_check_cons_list= ;
275 all) ac_enable_checking=1 ;
276 ac_gc_check_stringbytes=1 ;
277 ac_gc_check_string_overrun=1 ;
278 ac_gc_check_string_free_list=1 ;
279 ac_xmalloc_overrun=1 ;
280 ac_gc_check_cons_list=1 ;
282 # these enable particular checks
283 stringbytes) ac_gc_check_stringbytes=1 ;;
284 stringoverrun) ac_gc_check_string_overrun=1 ;;
285 stringfreelist) ac_gc_check_string_free_list=1 ;;
286 xmallocoverrun) ac_xmalloc_overrun=1 ;;
287 conslist) ac_gc_check_cons_list=1 ;;
288 glyphs) ac_glyphs_debug=1 ;;
289 *) AC_MSG_ERROR(unknown check category $check) ;;
294 if test x$ac_enable_checking != x ; then
295 AC_DEFINE(ENABLE_CHECKING, 1,
296 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
298 if test x$ac_gc_check_stringbytes != x ; then
299 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
300 [Define this temporarily to hunt a bug. If defined, the size of
301 strings is redundantly recorded in sdata structures so that it can
302 be compared to the sizes recorded in Lisp strings.])
304 if test x$ac_gc_check_string_overrun != x ; then
305 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
306 [Define this to check for short string overrun.])
308 if test x$ac_gc_check_string_free_list != x ; then
309 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
310 [Define this to check the string free list.])
312 if test x$ac_xmalloc_overrun != x ; then
313 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
314 [Define this to check for malloc buffer overrun.])
316 if test x$ac_gc_check_cons_list != x ; then
317 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
318 [Define this to check for errors in cons list.])
320 if test x$ac_glyphs_debug != x ; then
321 AC_DEFINE(GLYPH_DEBUG, 1,
322 [Define this to enable glyphs debugging code.])
325 AC_ARG_ENABLE(check-lisp-object-type,
326 [AS_HELP_STRING([--enable-check-lisp-object-type],
327 [enable compile time checks for the Lisp_Object data type.
328 This is useful for development for catching certain types of bugs.])],
329 if test "${enableval}" != "no"; then
330 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
331 [Define this to enable compile time checks for the Lisp_Object data type.])
335 dnl The name of this option is unfortunate. It predates, and has no
336 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
337 dnl Actually, it stops it working.
338 dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
339 AC_ARG_ENABLE(profiling,
340 [AS_HELP_STRING([--enable-profiling],
341 [build emacs with low-level, gprof profiling support.
342 Mainly useful for debugging Emacs itself. May not work on
343 all platforms. Stops profiler.el working.])],
344 [ac_enable_profiling="${enableval}"],[])
345 if test x$ac_enable_profiling != x ; then
346 PROFILING_CFLAGS="-DPROFILING=1 -pg"
350 AC_SUBST(PROFILING_CFLAGS)
352 AC_ARG_ENABLE(autodepend,
353 [AS_HELP_STRING([--enable-autodepend],
354 [automatically generate dependencies to .h-files.
355 Requires GNU Make and Gcc. Enabled if GNU Make and Gcc is
357 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
359 #### Make srcdir absolute, if it isn't already. It's important to
360 #### avoid running the file name through pwd unnecessarily, since pwd can
361 #### give you automounter prefixes, which can go away. We do all this
362 #### so Emacs can find its files when run uninstalled.
363 ## Make sure CDPATH doesn't affect cd (in case PWD is relative).
368 ## We may be able to use the $PWD environment variable to make this
369 ## absolute. But sometimes PWD is inaccurate.
370 ## Note: we used to use $PWD at the end instead of `pwd`,
371 ## but that tested only for a well-formed and valid PWD,
372 ## it did not object when PWD was well-formed and valid but just wrong.
373 if test ".$PWD" != "." && test ".`(cd "$PWD" ; sh -c pwd)`" = ".`pwd`" ;
377 srcdir=`(cd "$srcdir"; pwd)`
380 * ) srcdir=`(cd "$srcdir"; pwd)` ;;
383 ### Canonicalize the configuration name.
387 configuration=${host_alias-${build_alias-$host}}
389 dnl This used to use changequote, but, apart from `changequote is evil'
390 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
391 dnl the great gob of text. Thus it's not processed for possible expansion.
392 dnl Just make sure the brackets remain balanced.
394 dnl Since Emacs can't find matching pairs of quotes, boundaries are
395 dnl indicated by comments.
399 ### If you add support for a new configuration, add code to this
400 ### switch statement to recognize your configuration name and select
401 ### the appropriate operating system file.
403 ### You would hope that you could choose an s/*.h
404 ### file based on the operating system portion. However, it turns out
405 ### that each s/*.h file is pretty manufacturer-specific.
406 ### So we basically have to have a special case for each
407 ### configuration name.
409 ### As far as handling version numbers on operating systems is
410 ### concerned, make sure things will fail in a fixable way. If
411 ### /etc/MACHINES doesn't say anything about version numbers, be
412 ### prepared to handle anything reasonably. If version numbers
413 ### matter, be sure /etc/MACHINES says something about it.
416 case "${canonical}" in
418 ## GNU/Linux and similar ports
428 ## FreeBSD kernel + glibc based userland
443 ## Apple Darwin / Mac OS X
445 case "${canonical}" in
452 ## Use fink packages if available.
453 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
454 ## if test -d /sw/include && test -d /sw/lib; then
455 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
456 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
460 ## HP 9000 series 700 and 800, running HP/UX
464 hppa*-hp-hpux1[1-9]* )
466 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
470 rs6000-ibm-aix4.[23]* )
473 powerpc-ibm-aix4.[23]* )
476 rs6000-ibm-aix[56]* )
479 powerpc-ibm-aix[56]* )
483 ## Silicon Graphics machines
487 # Without defining _LANGUAGE_C, things get masked out in the headers
488 # so that, for instance, grepping for `free' in stdlib.h fails and
489 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
490 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
495 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
496 | x86_64-*-solaris2* | x86_64-*-sunos5*)
497 case "${canonical}" in
499 amd64-*-*|x86_64-*-*) ;;
503 case "${canonical}" in
504 *-sunos5.6* | *-solaris2.6* )
508 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
510 emacs_check_sunpro_c=yes
512 *-sunos5* | *-solaris* )
514 emacs_check_sunpro_c=yes
517 ## Watch out for a compiler that we know will not work.
518 case "${canonical}" in
519 *-solaris* | *-sunos5* )
520 if [ "x$CC" = x/usr/ucb/cc ]; then
521 ## /usr/ucb/cc doesn't work;
522 ## we should find some other compiler that does work.
530 ## Intel 386 machines where we don't care about the manufacturer.
532 case "${canonical}" in
533 *-cygwin ) opsys=cygwin ;;
534 *-darwin* ) opsys=darwin ;;
535 *-sysv4.2uw* ) opsys=unixware ;;
536 *-sysv5uw* ) opsys=unixware ;;
537 *-sysv5OpenUNIX* ) opsys=unixware ;;
538 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
547 ### If the code above didn't choose an operating system, just choose
548 ### an operating system based on the configuration name. You really
549 ### only want to use this when you have no idea what the right
550 ### operating system is; if you know what operating systems a machine
551 ### runs, it's cleaner to make it explicit in the case statement
553 if test x"${opsys}" = x; then
554 case "${canonical}" in
555 *-gnu* ) opsys=gnu ;;
565 if test $unported = yes; then
566 AC_MSG_ERROR([Emacs hasn't been ported to `${canonical}' systems.
567 Check `etc/MACHINES' for recognized configuration names.])
571 #### Choose a compiler.
573 dnl Sets GCC=yes if using gcc.
577 if test x$GCC = xyes; then
578 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
580 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
583 # Avoid gnulib's tests for O_NOATIME and O_NOFOLLOW, as we don't use them.
584 AC_DEFUN([gl_FCNTL_O_FLAGS])
585 # Avoid gnulib's threadlib module, as we do threads our own way.
586 AC_DEFUN([gl_THREADLIB])
588 # Initialize gnulib right after choosing the compiler.
589 dnl Amongst other things, this sets AR and ARFLAGS.
592 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
593 # if -g3 works and the user does not specify CFLAGS.
594 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
595 if test "$ac_test_CFLAGS" != set; then
598 emacs_g3_CFLAGS='-g3';;
600 emacs_g3_CFLAGS='-g3 -O2';;
604 if test -n "$emacs_g3_CFLAGS"; then
605 emacs_save_CFLAGS=$CFLAGS
606 CFLAGS=$emacs_g3_CFLAGS
607 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
608 [emacs_cv_prog_cc_g3],
609 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
610 [emacs_cv_prog_cc_g3=yes],
611 [emacs_cv_prog_cc_g3=no])])
612 if test $emacs_cv_prog_cc_g3 = yes; then
613 CFLAGS=$emacs_g3_CFLAGS
615 CFLAGS=$emacs_save_CFLAGS
620 AC_ARG_ENABLE([gcc-warnings],
621 [AS_HELP_STRING([--enable-gcc-warnings],
622 [turn on lots of GCC warnings. This is intended for
623 developers, and may generate false alarms when used
624 with older or non-GNU development tools.])],
627 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
629 gl_gcc_warnings=$enableval],
633 AC_ARG_ENABLE(link-time-optimization,
634 [AS_HELP_STRING([--enable-link-time-optimization],
635 [build emacs with link-time optimization.
636 This is supported only for GCC since 4.5.0.])],
637 if test "${enableval}" != "no"; then
638 AC_MSG_CHECKING([whether link-time optimization is supported])
640 if test x$GCC = xyes; then
641 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
642 if test x$CPUS != x; then
648 CFLAGS="$CFLAGS $LTO"
649 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
650 [ac_lto_supported=yes], [ac_lto_supported=no])
653 AC_MSG_RESULT([$ac_lto_supported])
654 if test "$ac_lto_supported" = "yes"; then
655 CFLAGS="$CFLAGS $LTO"
659 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
660 # ------------------------------------------------
661 # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
662 # Otherwise, run RUN-IF-NOT-FOUND.
663 AC_DEFUN([gl_GCC_VERSION_IFELSE],
667 #if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
670 # error "your version of gcc is older than $1.$2"
677 # When compiling with GCC, prefer -isystem to -I when including system
678 # include files, to avoid generating useless diagnostics for the files.
679 if test "$gl_gcc_warnings" != yes; then
684 # This, $nw, is the list of warnings we disable.
687 case $with_x_toolkit in
688 lucid | athena | motif)
689 # Old toolkits mishandle 'const'.
690 nw="$nw -Wwrite-strings"
693 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
696 AC_SUBST([WERROR_CFLAGS])
698 nw="$nw -Waggregate-return" # anachronistic
699 nw="$nw -Wlong-long" # C90 is anachronistic
700 nw="$nw -Wc++-compat" # We don't care about C++ compilers
701 nw="$nw -Wundef" # Warns on '#if GNULIB_FOO' etc in gnulib
702 nw="$nw -Wtraditional" # Warns on #elif which we use often
703 nw="$nw -Wcast-qual" # Too many warnings for now
704 nw="$nw -Wconversion" # Too many warnings for now
705 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
706 nw="$nw -Wsign-conversion" # Too many warnings for now
707 nw="$nw -Woverlength-strings" # Not a problem these days
708 nw="$nw -Wtraditional-conversion" # Too many warnings for now
709 nw="$nw -Wunreachable-code" # so buggy that it's now silently ignored
710 nw="$nw -Wpadded" # Our structs are not padded
711 nw="$nw -Wredundant-decls" # we regularly (re)declare functions
712 nw="$nw -Wlogical-op" # any use of fwrite provokes this
713 nw="$nw -Wformat-nonliteral" # we do this a lot
714 nw="$nw -Wvla" # warnings in gettext.h
715 nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
716 nw="$nw -Wswitch-enum" # Too many warnings for now
717 nw="$nw -Wswitch-default" # Too many warnings for now
718 nw="$nw -Wfloat-equal" # warns about high-quality code
719 nw="$nw -Winline" # OK to ignore 'inline'
720 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
721 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
722 # signed overflow has undefined behavior
723 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
724 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
726 # Emacs doesn't care about shadowing; see
727 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
730 # Emacs's use of alloca inhibits protecting the stack.
731 nw="$nw -Wstack-protector"
733 # The following line should be removable at some point.
734 nw="$nw -Wsuggest-attribute=pure"
736 gl_MANYWARN_ALL_GCC([ws])
737 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
741 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
742 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
743 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
744 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
745 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
746 gl_WARN_ADD([-Wno-format-nonliteral])
748 # In spite of excluding -Wlogical-op above, it is enabled, as of
749 # gcc 4.5.0 20090517.
750 gl_WARN_ADD([-Wno-logical-op])
752 gl_WARN_ADD([-fdiagnostics-show-option])
753 gl_WARN_ADD([-funit-at-a-time])
755 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
756 AH_VERBATIM([FORTIFY_SOURCE],
757 [/* Enable compile-time and run-time bounds-checking, and some warnings,
758 without upsetting glibc 2.15+. */
759 #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
760 # define _FORTIFY_SOURCE 2
763 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
765 # We use a slightly smaller set of warning options for lib/.
766 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
768 nw="$nw -Wunused-macros"
770 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
771 AC_SUBST([GNULIB_WARN_CFLAGS])
776 dnl Some other nice autoconf tests.
777 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
780 dnl if test "x$RANLIB" = x; then
785 AC_PATH_PROG(INSTALL_INFO, install-info, :,
786 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
787 dnl Don't use GZIP, which is used by gzip for additional parameters.
788 AC_PATH_PROG(GZIP_PROG, gzip)
790 if test $opsys = gnu-linux; then
791 AC_PATH_PROG(PAXCTL, paxctl,,
792 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
793 if test "X$PAXCTL" != X; then
794 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
795 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
796 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
797 else AC_MSG_RESULT(no); PAXCTL=""; fi])
801 ## Need makeinfo >= 4.7 (?) to build the manuals.
802 AC_PATH_PROG(MAKEINFO, makeinfo, no)
803 dnl By this stage, configure has already checked for egrep and set EGREP,
804 dnl or exited with an error if no egrep was found.
805 if test "$MAKEINFO" != "no"; then
807 $MAKEINFO --version 2> /dev/null |
808 $EGREP 'texinfo[[^0-9]]*([[1-4]][[0-9]]+|[[5-9]]|4\.[[7-9]]|4\.[[1-6]][[0-9]]+)'
814 ## Makeinfo is unusual. For a released Emacs, the manuals are
815 ## pre-built, and not deleted by the normal clean rules. makeinfo is
816 ## therefore in the category of "special tools" not normally required, which
817 ## configure does not have to check for (eg autoconf itself).
818 ## In a Bazaar checkout on the other hand, the manuals are not included.
819 ## So makeinfo is a requirement to build from Bazaar, and configure
820 ## should test for it as it does for any other build requirement.
821 ## We use the presence of $srcdir/info/emacs to distinguish a release,
822 ## with pre-built manuals, from a Bazaar checkout.
825 if test "$MAKEINFO" = "no"; then
827 if test "x${with_makeinfo}" = "xno"; then
829 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
830 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
831 source tree does not seem to have pre-built manuals in the `info' directory.
832 Either install a suitable version of makeinfo, or re-run configure
833 with the `--without-makeinfo' option to build without the manuals.] )
836 AC_SUBST(HAVE_MAKEINFO)
838 dnl Just so that there is only a single place we need to edit.
844 dnl Add our options to ac_link now, after it is set up.
846 if test x$GCC = xyes; then
847 test "x$GCC_LINK_TEST_OPTIONS" != x && \
848 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
850 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
851 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
854 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
855 dnl If we can link with the flag, it shouldn't do any harm anyhow.
856 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
857 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
858 dnl if not built to support GNU ld.
860 late_LDFLAGS=$LDFLAGS
861 if test x$GCC = xyes; then
862 LDFLAGS="$LDFLAGS -Wl,-znocombreloc"
864 LDFLAGS="$LDFLAGS -znocombreloc"
867 AC_MSG_CHECKING([for -znocombreloc])
868 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
869 [AC_MSG_RESULT(yes)],
870 LDFLAGS=$late_LDFLAGS
874 dnl The function dump-emacs will not be defined and temacs will do
875 dnl (load "loadup") automatically unless told otherwise.
876 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
878 your-opsys-here) CANNOT_DUMP=yes ;;
881 test "$CANNOT_DUMP" = "yes" && \
882 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
884 AC_SUBST(CANNOT_DUMP)
889 # MSDOS uses unexcoff.o
890 # MSWindows uses unexw32.o
898 UNEXEC_OBJ=unexmacosx.o
901 UNEXEC_OBJ=unexhp9k800.o
904 # Use the Solaris dldump() function, called from unexsol.c, to dump
905 # emacs, instead of the generic ELF dump code found in unexelf.c.
906 # The resulting binary has a complete symbol table, and is better
907 # for debugging and other observability tools (debuggers, pstack, etc).
909 # If you encounter a problem using dldump(), please consider sending
910 # a message to the OpenSolaris tools-linking mailing list:
911 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
913 # It is likely that dldump() works with older Solaris too, but this has
914 # not been tested, so for now this change is for Solaris 10 or newer.
922 ## Let `ld' find image libs and similar things in /usr/local/lib.
923 ## The system compiler, GCC, has apparently been modified to not
924 ## look there, contrary to what a stock GCC would do.
925 ### It's not our place to do this. See bug#10313#17.
926 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
931 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
932 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
936 ### It's not our place to do this. See bug#10313#17.
937 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
942 ## Han Boetes <han@mijncomputer.nl> says this is necessary,
943 ## otherwise Emacs dumps core on elf systems.
944 LD_SWITCH_SYSTEM="-Z"
947 AC_SUBST(LD_SWITCH_SYSTEM)
949 ac_link="$ac_link $LD_SWITCH_SYSTEM"
951 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
952 ## which has not been defined yet. When this was handled with cpp,
953 ## it was expanded to null when configure sourced the s/*.h file.
954 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
955 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
956 ## (or somesuch), but because it is supposed to go at the _front_
957 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
958 ## Compare with the gnu-linux case below, which added to the end
959 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
960 ## LD_SWITCH_SYSTEM_TEMACS.
963 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
970 AC_CHECK_DECL([__ELF__])
971 if test "$ac_cv_have_decl___ELF__" = "yes"; then
972 ## With ELF, make sure that all common symbols get allocated to in the
973 ## data section. Otherwise, the dump of temacs may miss variables in
974 ## the shared library that have been initialized. For example, with
975 ## GNU libc, __malloc_initialized would normally be resolved to the
976 ## shared library's .bss section, which is fatal.
977 if test "x$GCC" = "xyes"; then
978 C_SWITCH_MACHINE="-fno-common"
980 AC_MSG_ERROR([What gives? Fix me if DEC Unix supports ELF now.])
983 UNEXEC_OBJ=unexalpha.o
987 AC_SUBST(C_SWITCH_MACHINE)
992 ## Some programs in src produce warnings saying certain subprograms
993 ## are too complex and need a MAXMEM value greater than 2000 for
994 ## additional optimization. --nils@exp-math.uni-essen.de
995 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
996 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
997 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
998 ## It is redundant in glibc2, since we define _GNU_SOURCE.
999 AC_SUBST(C_SWITCH_SYSTEM)
1004 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1005 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1007 freebsd) LIBS_SYSTEM="-lutil" ;;
1009 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1011 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1013 ## Motif needs -lgen.
1014 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1016 AC_SUBST(LIBS_SYSTEM)
1019 ### Make sure subsequent tests use flags consistent with the build flags.
1021 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1022 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1024 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1027 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C89 or better.
1028 AC_DEFUN([AC_TYPE_SIZE_T])
1029 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1030 AC_DEFUN([AC_TYPE_UID_T])
1036 dnl Current possibilities handled by sed (aix4-2 -> aix,
1037 dnl gnu-linux -> gnu/linux, etc.):
1038 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1039 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1040 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1042 dnl NB do not use CRT_DIR unquoted here, since it might not be set yet.
1046 START_FILES='pre-crt0.o'
1049 ## Adding -lm confuses the dynamic linker, so omit it.
1051 START_FILES='pre-crt0.o'
1054 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtn.o'
1055 START_FILES='pre-crt0.o $(CRT_DIR)/crt1.o $(CRT_DIR)/crti.o'
1056 SYSTEM_TYPE=berkeley-unix
1058 gnu-linux | gnu-kfreebsd )
1059 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtn.o'
1060 START_FILES='pre-crt0.o $(CRT_DIR)/crt1.o $(CRT_DIR)/crti.o'
1062 hpux10-20 | hpux11 )
1064 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o'
1066 dnl NB this may be adjusted below.
1068 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o'
1069 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o $(CRT_DIR)/crtbegin.o'
1070 SYSTEM_TYPE=berkeley-unix
1074 SYSTEM_TYPE=usg-unix-v
1080 AC_SUBST(START_FILES)
1081 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1082 [The type of system you are compiling for; sets `system-type'.])
1084 dnl Not all platforms use crtn.o files. Check if the current one does.
1087 for file in x $LIB_STANDARD $START_FILES; do
1089 *CRT_DIR*) crt_files="$crt_files `echo $file | sed -e 's|.*/||'`" ;;
1093 if test "x$crt_files" != x; then
1095 ## If user specified a crt-dir, use that unconditionally.
1098 if test "X$CRT_DIR" = "X"; then
1100 CRT_DIR=/usr/lib # default
1102 case "$canonical" in
1103 x86_64-*-linux-gnu* | s390x-*-linux-gnu*)
1104 ## On x86-64 and s390x GNU/Linux distributions, the standard library
1105 ## can be in a variety of places. We only try /usr/lib64 and /usr/lib.
1106 ## For anything else (eg /usr/lib32), it is up the user to specify
1107 ## the location (bug#5655).
1108 ## Test for crtn.o, not just the directory, because sometimes the
1109 ## directory exists but does not have the relevant files (bug#1287).
1110 ## FIXME better to test for binary compatibility somehow.
1111 test -e /usr/lib64/crtn.o && CRT_DIR=/usr/lib64
1114 powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*) CRT_DIR=/usr/lib64 ;;
1118 hpux10-20) CRT_DIR=/lib ;;
1121 test "x${GCC}" = xyes && crt_gcc=yes
1127 for file in $crt_files; do
1129 ## If we're using gcc, try to determine it automatically by asking
1130 ## gcc. [If this doesn't work, CRT_DIR will remain at the
1131 ## system-dependent default from above.]
1132 if test $crt_gcc = yes && test ! -e $CRT_DIR/$file; then
1134 crt_file=`$CC --print-file-name=$file 2>/dev/null`
1137 CRT_DIR=`AS_DIRNAME(["$crt_file"])`
1142 dnl We expect all the files to be in a single directory, so after the
1143 dnl first there is no point asking gcc.
1146 test -e $CRT_DIR/$file || crt_missing="$crt_missing $file"
1149 test "x$crt_missing" = x || \
1150 AC_MSG_ERROR([Required file(s) not found:$crt_missing
1151 Try using the --with-crt-dir option.])
1153 fi # crt_files != ""
1159 if test -f $CRT_DIR/crti.o; then
1161 test -f $CRT_DIR/crtn.o || \
1162 AC_MSG_ERROR([Required file not found: crtn.o])
1164 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o $(CRT_DIR)/crtn.o'
1165 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o $(CRT_DIR)/crti.o $(CRT_DIR)/crtbegin.o'
1171 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1172 pre_PKG_CONFIG_LIBS=$LIBS
1174 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
1176 dnl This function definition taken from Gnome 2.0
1177 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
1178 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
1179 dnl also defines GSTUFF_PKG_ERRORS on error
1180 AC_DEFUN([PKG_CHECK_MODULES], [
1183 if test "$PKG_CONFIG" = "no" ; then
1184 ifelse([$4], , [AC_MSG_ERROR([
1185 *** The pkg-config script could not be found. Make sure it is in your path, or give the full name of pkg-config with the PKG_CONFIG environment variable or --with-pkg-config-prog. Or see http://www.freedesktop.org/software/pkgconfig to get pkg-config.])], [$4])
1187 PKG_CONFIG_MIN_VERSION=0.9.0
1188 if "$PKG_CONFIG" --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
1189 AC_MSG_CHECKING(for $2)
1191 if "$PKG_CONFIG" --exists "$2" 2>&AS_MESSAGE_LOG_FD &&
1192 $1_CFLAGS=`"$PKG_CONFIG" --cflags "$2" 2>&AS_MESSAGE_LOG_FD` &&
1193 $1_LIBS=`"$PKG_CONFIG" --libs "$2" 2>&AS_MESSAGE_LOG_FD`; then
1200 $1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1201 $1_LIBS=`AS_ECHO(["$$1_LIBS"]) | sed -e 's,///*,/,g'`
1202 AC_MSG_RESULT([yes CFLAGS='$$1_CFLAGS' LIBS='$$1_LIBS'])
1208 ## If we have a custom action on failure, don't print errors, but
1209 ## do set a variable so people can do so. Do it in a subshell
1210 ## to capture any diagnostics in invoking pkg-config.
1211 $1_PKG_ERRORS=`("$PKG_CONFIG" --print-errors "$2") 2>&1`
1212 ifelse([$4], ,echo "$$1_PKG_ERRORS",)
1218 echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
1219 echo "*** See http://www.freedesktop.org/software/pkgconfig"
1223 if test $succeeded = yes; then
1224 ifelse([$3], , :, [$3])
1226 ifelse([$4], , [AC_MSG_ERROR([Library requirements ($2) not met; consider adjusting the PKG_CONFIG_PATH environment variable if your libraries are in a nonstandard prefix so pkg-config can find them.])], [$4])
1231 if test "${with_sound}" != "no"; then
1232 # Sound support for GNU/Linux and the free BSDs.
1233 AC_CHECK_HEADERS(machine/soundcard.h sys/soundcard.h soundcard.h,
1234 have_sound_header=yes)
1235 # Emulation library used on NetBSD.
1236 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1240 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1241 PKG_CHECK_MODULES(ALSA, $ALSA_MODULES, HAVE_ALSA=yes, HAVE_ALSA=no)
1242 if test $HAVE_ALSA = yes; then
1243 SAVE_CFLAGS="$CFLAGS"
1245 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1246 LIBS="$ALSA_LIBS $LIBS"
1247 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1248 emacs_alsa_normal=yes,
1249 emacs_alsa_normal=no)
1250 if test "$emacs_alsa_normal" != yes; then
1251 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1252 [[snd_lib_error_set_handler (0);]])],
1253 emacs_alsa_subdir=yes,
1254 emacs_alsa_subdir=no)
1255 if test "$emacs_alsa_subdir" != yes; then
1256 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1258 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1261 CFLAGS="$SAVE_CFLAGS"
1263 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1264 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1265 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1268 dnl Define HAVE_SOUND if we have sound support. We know it works and
1269 dnl compiles only on the specified platforms. For others, it
1270 dnl probably doesn't make sense to try.
1271 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1273 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1274 gnu-linux|freebsd|netbsd)
1275 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1280 AC_SUBST(CFLAGS_SOUND)
1283 dnl checks for header files
1284 AC_CHECK_HEADERS_ONCE(
1285 linux/version.h sys/systeminfo.h
1287 sys/vlimit.h sys/resource.h
1288 sys/utsname.h pwd.h utmp.h util.h)
1290 AC_MSG_CHECKING(if personality LINUX32 can be set)
1291 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1292 emacs_cv_personality_linux32=yes,
1293 emacs_cv_personality_linux32=no)
1294 AC_MSG_RESULT($emacs_cv_personality_linux32)
1296 if test $emacs_cv_personality_linux32 = yes; then
1297 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1298 [Define to 1 if personality LINUX32 can be set.])
1301 dnl On Solaris 8 there's a compilation warning for term.h because
1302 dnl it doesn't define `bool'.
1303 AC_CHECK_HEADERS(term.h, , , -)
1305 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1307 if test $ac_cv_have_decl_sys_siglist != yes; then
1308 # For Tru64, at least:
1309 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1311 if test $ac_cv_have_decl___sys_siglist = yes; then
1312 AC_DEFINE(sys_siglist, __sys_siglist,
1313 [Define to any substitute for sys_siglist.])
1318 dnl Check for speed_t typedef.
1319 AC_CACHE_CHECK(for speed_t, emacs_cv_speed_t,
1320 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <termios.h>]], [[speed_t x = 1;]])],
1321 emacs_cv_speed_t=yes, emacs_cv_speed_t=no)])
1322 if test $emacs_cv_speed_t = yes; then
1323 AC_DEFINE(HAVE_SPEED_T, 1,
1324 [Define to 1 if `speed_t' is declared by <termios.h>.])
1327 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1328 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1329 #if HAVE_SYS_SOCKET_H
1330 #include <sys/socket.h>
1332 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1333 #if HAVE_SYS_SOCKET_H
1334 #include <sys/socket.h>
1336 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1337 #if HAVE_SYS_SOCKET_H
1338 #include <sys/socket.h>
1341 dnl checks for structure members
1342 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1343 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1344 struct ifreq.ifr_addr,
1345 struct ifreq.ifr_addr.sa_len], , ,
1346 [AC_INCLUDES_DEFAULT
1347 #if HAVE_SYS_SOCKET_H
1348 #include <sys/socket.h>
1354 dnl Check for endianness.
1355 dnl AC_C_BIGENDIAN is done by gnulib.
1357 dnl check for Make feature
1358 dnl AC_PROG_MAKE_SET is done by Automake.
1363 dnl check for GNU Make if we have GCC and autodepend is on.
1364 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1365 AC_MSG_CHECKING([whether we are using GNU Make])
1367 testval=`${MAKE-make} --version 2>/dev/null | grep 'GNU Make'`
1368 if test "x$testval" != x; then
1371 ac_enable_autodepend=no
1373 AC_MSG_RESULT([$HAVE_GNU_MAKE])
1374 if test $HAVE_GNU_MAKE = yes; then
1375 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1376 SAVE_CFLAGS="$CFLAGS"
1377 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1378 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1379 CFLAGS="$SAVE_CFLAGS"
1380 test -f deps.d || ac_enable_autodepend=no
1382 AC_MSG_RESULT([$ac_enable_autodepend])
1384 if test $ac_enable_autodepend = yes; then
1385 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1386 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1387 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1388 deps_frag=autodeps.mk
1391 deps_frag=$srcdir/src/$deps_frag
1394 AC_SUBST_FILE(deps_frag)
1397 lisp_frag=$srcdir/src/lisp.mk
1398 AC_SUBST_FILE(lisp_frag)
1401 dnl checks for operating system services
1402 AC_SYS_LONG_FILE_NAMES
1404 #### Choose a window system.
1406 ## We leave window_system equal to none if
1407 ## we end up building without one. Any new window system should
1408 ## set window_system to an appropriate value and add objects to
1409 ## window-system-specific substs.
1413 if test "$no_x" != yes; then
1417 LD_SWITCH_X_SITE_RPATH=
1418 if test "${x_libraries}" != NONE; then
1419 if test -n "${x_libraries}"; then
1420 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1421 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1423 x_default_search_path=""
1424 x_search_path=${x_libraries}
1425 if test -z "${x_search_path}"; then
1426 x_search_path=/usr/lib
1428 for x_library in `echo ${x_search_path}: | \
1429 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1431 ${x_library}/X11/%L/%T/%N%C%S:\
1432 ${x_library}/X11/%l/%T/%N%C%S:\
1433 ${x_library}/X11/%T/%N%C%S:\
1434 ${x_library}/X11/%L/%T/%N%S:\
1435 ${x_library}/X11/%l/%T/%N%S:\
1436 ${x_library}/X11/%T/%N%S"
1437 if test x"${x_default_search_path}" = x; then
1438 x_default_search_path=${x_search_path}
1440 x_default_search_path="${x_search_path}:${x_default_search_path}"
1444 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1446 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1447 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1450 if test x"${x_includes}" = x; then
1451 bitmapdir=/usr/include/X11/bitmaps
1453 # accumulate include directories that have X11 bitmap subdirectories
1455 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1456 if test -d "${bmd}/X11/bitmaps"; then
1457 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1459 if test -d "${bmd}/bitmaps"; then
1460 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1463 if test ${bmd_acc} != "dummyval"; then
1464 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1471 tmp_CPPFLAGS="$CPPFLAGS"
1472 tmp_CFLAGS="$CFLAGS"
1473 CPPFLAGS="$CPPFLAGS -x objective-c"
1474 CFLAGS="$CFLAGS -x objective-c"
1475 TEMACS_LDFLAGS2="\${LDFLAGS}"
1477 if test "${with_ns}" != no; then
1478 if test "${opsys}" = darwin; then
1480 ns_appdir=`pwd`/nextstep/Emacs.app
1481 ns_appbindir=${ns_appdir}/Contents/MacOS
1482 ns_appresdir=${ns_appdir}/Contents/Resources
1483 ns_appsrc=Cocoa/Emacs.base
1484 elif test -f $GNUSTEP_CONFIG_FILE; then
1486 ns_appdir=`pwd`/nextstep/Emacs.app
1487 ns_appbindir=${ns_appdir}
1488 ns_appresdir=${ns_appdir}/Resources
1489 ns_appsrc=GNUstep/Emacs.base
1490 dnl FIXME sourcing this several times in subshells seems inefficient.
1491 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1492 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1493 dnl I seemed to need these as well with GNUstep-startup 0.25.
1494 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1495 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1496 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1497 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1498 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1499 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1500 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1501 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1502 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1506 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1507 dnl If they had chosen to either define it or not, we could have
1508 dnl just used AC_CHECK_DECL here.
1509 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1510 emacs_cv_objc_exceptions,
1511 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1512 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1516 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1517 if test $emacs_cv_objc_exceptions = yes; then
1518 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1519 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1520 [Define if GNUstep uses ObjC exceptions.])
1521 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1525 dnl This is only used while we test the NS headers, it gets reset below.
1526 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1528 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1529 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1530 files are missing or cannot be compiled.])])
1532 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1534 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1535 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
1538 #error "OSX 10.4 or newer required"
1542 ns_osx_have_104=yes,
1544 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1546 ns_have_nsinteger=yes,
1547 ns_have_nsinteger=no)
1548 if test $ns_osx_have_104 = no; then
1549 AC_MSG_ERROR([`OSX 10.4 or newer is required']);
1551 if test $ns_have_nsinteger = yes; then
1552 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1556 AC_SUBST(TEMACS_LDFLAGS2)
1558 INSTALL_ARCH_INDEP_EXTRA=install-etc
1559 ns_self_contained=no
1562 if test "${HAVE_NS}" = yes; then
1563 if test "$with_toolkit_scroll_bars" = "no"; then
1564 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1567 window_system=nextstep
1568 # set up packaging dirs
1569 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1570 ns_self_contained=yes
1571 prefix=${ns_appresdir}
1572 exec_prefix=${ns_appbindir}
1573 dnl This one isn't really used, only archlibdir is.
1574 libexecdir="\${ns_appbindir}/libexec"
1575 archlibdir="\${ns_appbindir}/libexec"
1576 docdir="\${ns_appresdir}/etc"
1577 etcdir="\${ns_appresdir}/etc"
1578 dnl FIXME maybe set datarootdir instead.
1579 dnl That would also get applications, icons, man.
1580 infodir="\${ns_appresdir}/info"
1581 mandir="\${ns_appresdir}/man"
1582 lispdir="\${ns_appresdir}/lisp"
1583 leimdir="\${ns_appresdir}/leim"
1584 INSTALL_ARCH_INDEP_EXTRA=
1586 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o"
1588 CFLAGS="$tmp_CFLAGS"
1589 CPPFLAGS="$tmp_CPPFLAGS"
1590 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1591 AC_SUBST(ns_self_contained)
1593 AC_SUBST(NS_OBJC_OBJ)
1594 AC_SUBST(LIB_STANDARD)
1601 if test "${with_w32}" != no; then
1602 if test "${opsys}" != "cygwin"; then
1603 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin.])
1605 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1606 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1607 cannot be found.])])
1608 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1609 AC_CHECK_TOOL(WINDRES, [windres],
1610 [AC_MSG_ERROR([No resource compiler found.])])
1611 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1612 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1613 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1614 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1616 # Tell the linker that emacs.res is an object (which we compile from
1617 # the rc file), not a linker script.
1618 W32_RES_LINK="-Wl,-bpe-i386 -Wl,emacs.res"
1623 AC_SUBST(W32_RES_LINK)
1625 if test "${HAVE_W32}" = "yes"; then
1630 ## $window_system is now set to the window system we will
1638 case "${window_system}" in
1643 case "${with_x_toolkit}" in
1644 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1645 motif ) USE_X_TOOLKIT=MOTIF ;;
1647 term_header=gtkutil.h
1648 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1649 dnl USE_X_TOOLKIT is set.
1650 USE_X_TOOLKIT=none ;;
1651 gtk2 ) with_gtk2=yes
1652 term_header=gtkutil.h
1653 USE_X_TOOLKIT=none ;;
1654 gtk3 ) with_gtk3=yes
1655 term_header=gtkutil.h
1656 USE_X_TOOLKIT=none ;;
1657 no ) USE_X_TOOLKIT=none ;;
1658 dnl If user did not say whether to use a toolkit, make this decision later:
1659 dnl use the toolkit if we have gtk, or X11R5 or newer.
1660 * ) USE_X_TOOLKIT=maybe ;;
1664 term_header=nsterm.h
1667 term_header=w32term.h
1671 if test -n "${term_header}"; then
1672 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
1673 [Define to the header for the built-in window system.])
1676 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1677 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1678 if test "$HAVE_XSERVER" = true ||
1679 test -n "$DISPLAY" ||
1680 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1681 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1682 were found. You should install the relevant development files for X
1683 and for the toolkit you want, such as Gtk+, Lesstif or Motif. Also make
1684 sure you have development files for image handling, i.e.
1685 tiff, gif, jpeg, png and xpm.
1686 If you are sure you want Emacs compiled without X window support, pass
1692 ### If we're using X11, we should use the X menu package.
1695 yes ) HAVE_MENUS=yes ;;
1698 # Does the opsystem file prohibit the use of the GNU malloc?
1699 # Assume not, until told otherwise.
1703 [whether malloc is Doug Lea style],
1704 [emacs_cv_var_doug_lea_malloc],
1707 [[#include <malloc.h>
1708 static void hook (void) {}]],
1709 [[malloc_set_state (malloc_get_state ());
1710 __after_morecore_hook = hook;
1711 __malloc_initialize_hook = hook;]])],
1712 [emacs_cv_var_doug_lea_malloc=yes],
1713 [emacs_cv_var_doug_lea_malloc=no])])
1714 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1717 dnl See comments in aix4-2.h about maybe using system malloc there.
1720 ## darwin ld insists on the use of malloc routines in the System framework.
1721 darwin|sol2-10) system_malloc=yes ;;
1724 if test "${system_malloc}" = "yes"; then
1725 AC_DEFINE(SYSTEM_MALLOC, 1, [Define to use system malloc.])
1728 (The GNU allocators don't work with this system configuration.)"
1732 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1733 VMLIMIT_OBJ=vm-limit.o
1735 AC_SUBST(GMALLOC_OBJ)
1736 AC_SUBST(VMLIMIT_OBJ)
1738 if test "$doug_lea_malloc" = "yes" ; then
1739 if test "$GNU_MALLOC" = yes ; then
1741 (Using Doug Lea's new malloc from the GNU C Library.)"
1743 AC_DEFINE(DOUG_LEA_MALLOC, 1,
1744 [Define to 1 if you are using the GNU C Library.])
1746 ## Use mmap directly for allocating larger buffers.
1747 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
1748 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
1749 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
1751 gnu*) REL_ALLOC=no ;;
1755 if test x"${REL_ALLOC}" = x; then
1756 REL_ALLOC=${GNU_MALLOC}
1759 use_mmap_for_buffers=no
1761 cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
1765 if test $use_mmap_for_buffers = yes; then
1766 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
1770 LIBS="$LIBS_SYSTEM $LIBS"
1772 dnl If found, this defines HAVE_LIBDNET, which m/pmax.h checks,
1773 dnl and also adds -ldnet to LIBS, which Autoconf uses for checks.
1774 AC_CHECK_LIB(dnet, dnet_ntoa)
1775 dnl This causes -lresolv to get used in subsequent tests,
1776 dnl which causes failures on some systems such as HPUX 9.
1777 dnl AC_CHECK_LIB(resolv, gethostbyname)
1779 dnl FIXME replace main with a function we actually want from this library.
1780 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
1782 dnl Check if pthreads is available.
1784 AC_CHECK_HEADERS_ONCE(pthread.h)
1785 if test "$ac_cv_header_pthread_h"; then
1786 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
1787 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
1788 dnl testing for pthread_self if Emacs uses gmalloc.c.
1789 if test "$GMALLOC_OBJ" = gmalloc.o; then
1790 emacs_pthread_function=pthread_atfork
1792 emacs_pthread_function=pthread_self
1794 AC_CHECK_LIB(pthread, $emacs_pthread_function, HAVE_PTHREAD=yes)
1796 if test "$HAVE_PTHREAD" = yes; then
1797 case "${canonical}" in
1799 *) LIB_PTHREAD="-lpthread"
1800 LIBS="$LIB_PTHREAD $LIBS" ;;
1802 AC_DEFINE(HAVE_PTHREAD, 1, [Define to 1 if you have pthread (-lpthread).])
1804 AC_SUBST([LIB_PTHREAD])
1806 AC_CHECK_LIB(pthreads, cma_open)
1808 ## Note: when using cpp in s/aix4.2.h, this definition depended on
1809 ## HAVE_LIBPTHREADS. That was not defined earlier in configure when
1810 ## the system file was sourced. Hence the value of LIBS_SYSTEM
1811 ## added to LIBS in configure would never contain the pthreads part,
1812 ## but the value used in Makefiles might. FIXME?
1814 ## -lpthreads seems to be necessary for Xlib in X11R6, and should
1815 ## be harmless on older versions of X where it happens to exist.
1816 test "$opsys" = "aix4-2" && \
1817 test $ac_cv_lib_pthreads_cma_open = yes && \
1818 LIBS_SYSTEM="$LIBS_SYSTEM -lpthreads"
1820 dnl Check for need for bigtoc support on IBM AIX
1824 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1826 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1827 *) gdb_cv_bigtoc=-bbigtoc ;;
1830 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1831 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
1836 # Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
1837 # used for the tests that follow. We set them back to REAL_CFLAGS and
1838 # REAL_CPPFLAGS later on.
1840 REAL_CFLAGS="$CFLAGS"
1841 REAL_CPPFLAGS="$CPPFLAGS"
1843 if test "${HAVE_X11}" = "yes"; then
1844 DEFS="$C_SWITCH_X_SITE $DEFS"
1845 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
1847 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
1848 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
1850 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
1851 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
1852 # but it's more convenient here to set LD_RUN_PATH since this
1853 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
1854 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
1855 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
1859 if test "${opsys}" = "gnu-linux"; then
1860 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
1861 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1862 [[XOpenDisplay ("foo");]])],
1863 [xgnu_linux_first_failure=no],
1864 [xgnu_linux_first_failure=yes])
1865 if test "${xgnu_linux_first_failure}" = "yes"; then
1866 OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
1867 OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
1868 OLD_CPPFLAGS="$CPPFLAGS"
1870 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
1871 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
1872 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
1873 LIBS="$LIBS -b i486-linuxaout"
1874 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1875 [[XOpenDisplay ("foo");]])],
1876 [xgnu_linux_second_failure=no],
1877 [xgnu_linux_second_failure=yes])
1878 if test "${xgnu_linux_second_failure}" = "yes"; then
1879 # If we get the same failure with -b, there is no use adding -b.
1880 # So take it out. This plays safe.
1881 LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
1882 C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
1883 CPPFLAGS="$OLD_CPPFLAGS"
1894 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
1895 # header files included from there.
1896 AC_MSG_CHECKING(for Xkb)
1897 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
1898 #include <X11/XKBlib.h>]],
1899 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
1900 emacs_xkb=yes, emacs_xkb=no)
1901 AC_MSG_RESULT($emacs_xkb)
1902 if test $emacs_xkb = yes; then
1903 AC_DEFINE(HAVE_XKBGETKEYBOARD, 1, [Define to 1 if you have the XkbGetKeyboard function.])
1906 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
1907 XScreenNumberOfScreen)
1910 if test "${window_system}" = "x11"; then
1911 AC_MSG_CHECKING(X11 version 6)
1912 AC_CACHE_VAL(emacs_cv_x11_version_6,
1913 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
1914 [[#if XlibSpecificationRelease < 6
1917 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
1918 if test $emacs_cv_x11_version_6 = yes; then
1919 AC_MSG_RESULT(6 or newer)
1920 AC_DEFINE(HAVE_X11R6, 1,
1921 [Define to 1 if you have the X11R6 or newer version of Xlib.])
1922 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
1923 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
1927 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
1928 [Define if you have usable X11R6-style XIM support.])
1932 AC_MSG_RESULT(before 6)
1937 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
1939 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes"; then
1940 if test "${with_rsvg}" != "no"; then
1941 RSVG_REQUIRED=2.11.0
1942 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
1944 PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, HAVE_RSVG=yes, :)
1945 AC_SUBST(RSVG_CFLAGS)
1948 if test $HAVE_RSVG = yes; then
1949 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
1950 CFLAGS="$CFLAGS $RSVG_CFLAGS"
1951 LIBS="$RSVG_LIBS $LIBS"
1957 if test "${HAVE_X11}" = "yes"; then
1958 if test "${with_imagemagick}" != "no"; then
1959 ## 6.2.8 is the earliest version known to work, but earlier versions
1960 ## might work - let us know if you find one.
1961 ## 6.0.7 does not work. See bug#7955.
1962 IMAGEMAGICK_MODULE="Wand >= 6.2.8"
1963 PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
1964 AC_SUBST(IMAGEMAGICK_CFLAGS)
1965 AC_SUBST(IMAGEMAGICK_LIBS)
1967 if test $HAVE_IMAGEMAGICK = yes; then
1968 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
1969 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
1970 LIBS="$IMAGEMAGICK_LIBS $LIBS"
1971 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
1981 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
1984 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1986 dnl Checks for libraries.
1987 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1988 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
1989 AC_MSG_ERROR($GTK_PKG_ERRORS)
1991 if test "$pkg_check_gtk" = "yes"; then
1992 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
1993 GTK_OBJ=emacsgtkfixed.o
1994 term_header=gtkutil.h
1995 USE_GTK_TOOLKIT="GTK3"
1998 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2002 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2005 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2007 dnl Checks for libraries.
2008 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
2009 if test "$pkg_check_gtk" = "no" &&
2010 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2012 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2014 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2017 if test x"$pkg_check_gtk" = xyes; then
2019 AC_SUBST(GTK_CFLAGS)
2021 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2022 CFLAGS="$CFLAGS $GTK_CFLAGS"
2023 LIBS="$GTK_LIBS $LIBS"
2024 dnl Try to compile a simple GTK program.
2026 AC_CHECK_FUNCS(gtk_main, GTK_COMPILES=yes)
2027 if test "${GTK_COMPILES}" != "yes"; then
2028 if test "$USE_X_TOOLKIT" != "maybe"; then
2029 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2033 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2034 GTK_OBJ="gtkutil.o $GTK_OBJ"
2036 if "$PKG_CONFIG" --atleast-version=2.10 gtk+-2.0; then
2039 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2040 closing open displays. This is no problem if you just use
2041 one display, but if you use more than one and close one of them
2051 if test "${HAVE_GTK}" = "yes"; then
2053 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2054 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2055 if test "$with_toolkit_scroll_bars" != no; then
2056 with_toolkit_scroll_bars=yes
2059 dnl Check if we have the old file selection dialog declared and
2060 dnl in the link library. In 2.x it may be in the library,
2061 dnl but not declared if deprecated featured has been selected out.
2062 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2063 HAVE_GTK_FILE_SELECTION=no
2064 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2065 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2066 #include <gtk/gtk.h>])
2067 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2068 AC_CHECK_FUNCS(gtk_file_selection_new)
2072 dnl Check for functions introduced in 2.14 and later.
2073 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2074 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2075 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2076 gtk_orientable_set_orientation \
2077 gtk_window_set_has_resize_grip)
2079 term_header=gtkutil.h
2082 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2083 dnl other platforms.
2086 if test "${with_dbus}" = "yes"; then
2087 PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
2088 if test "$HAVE_DBUS" = yes; then
2089 LIBS="$LIBS $DBUS_LIBS"
2090 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2091 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2092 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2094 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2095 dbus_type_is_valid \
2096 dbus_validate_bus_name \
2097 dbus_validate_path \
2098 dbus_validate_interface \
2099 dbus_validate_member)
2105 dnl GSettings has been tested under GNU/Linux only.
2107 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2108 PKG_CHECK_MODULES(GSETTINGS, gio-2.0 >= 2.26, HAVE_GSETTINGS=yes, HAVE_GSETTINGS=no)
2109 if test "$HAVE_GSETTINGS" = "yes"; then
2110 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2111 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2112 SETTINGS_LIBS="$GSETTINGS_LIBS"
2116 dnl GConf has been tested under GNU/Linux only.
2117 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2119 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2120 PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
2121 if test "$HAVE_GCONF" = yes; then
2122 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2123 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2124 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2125 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2129 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2130 PKG_CHECK_MODULES(GOBJECT, gobject-2.0 >= 2.0, HAVE_GOBJECT=yes, HAVE_GOBJECT=no)
2131 if test "$HAVE_GOBJECT" = "yes"; then
2132 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2133 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2135 SAVE_CFLAGS="$CFLAGS"
2137 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2138 LIBS="$SETTINGS_LIBS $LIBS"
2139 AC_CHECK_FUNCS([g_type_init])
2140 CFLAGS="$SAVE_CFLAGS"
2143 AC_SUBST(SETTINGS_CFLAGS)
2144 AC_SUBST(SETTINGS_LIBS)
2147 dnl SELinux is available for GNU/Linux only.
2150 if test "${with_selinux}" = "yes"; then
2151 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2152 if test "$HAVE_LIBSELINUX" = yes; then
2153 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2154 LIBSELINUX_LIBS=-lselinux
2157 AC_SUBST(LIBSELINUX_LIBS)
2160 HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=no
2161 if test "${with_gnutls}" = "yes" ; then
2162 PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6], HAVE_GNUTLS=yes, HAVE_GNUTLS=no)
2163 if test "${HAVE_GNUTLS}" = "yes"; then
2164 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2167 CFLAGS="$CFLAGS $LIBGNUTLS_CFLAGS"
2168 LIBS="$LIBGNUTLS_LIBS $LIBS"
2169 AC_CHECK_FUNCS(gnutls_certificate_set_verify_function, HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=yes)
2171 if test "${HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY}" = "yes"; then
2172 AC_DEFINE(HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY, 1, [Define if using GnuTLS certificate verification callbacks.])
2176 AC_SUBST(LIBGNUTLS_LIBS)
2177 AC_SUBST(LIBGNUTLS_CFLAGS)
2179 dnl inotify is only available on GNU/Linux.
2180 if test "${with_inotify}" = "yes"; then
2181 AC_CHECK_HEADERS(sys/inotify.h)
2182 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2183 AC_CHECK_FUNC(inotify_init1)
2186 if test "$ac_cv_func_inotify_init1" = yes; then
2187 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2190 dnl POSIX ACL support: provided by libacl on GNU/Linux, by libc on FreeBSD.
2193 if test "${with_acl}" = "yes"; then
2194 AC_CHECK_LIB([acl], [acl_set_file], HAVE_POSIX_ACL=yes, HAVE_POSIX_ACL=no)
2195 if test "$HAVE_POSIX_ACL" = yes; then
2196 AC_DEFINE(HAVE_POSIX_ACL, 1, [Define to 1 if using POSIX ACL support.])
2199 AC_CHECK_FUNC(acl_set_file, HAVE_POSIX_ACL=yes, HAVE_POSIX_ACL=no)
2200 if test "$HAVE_POSIX_ACL" = yes; then
2201 AC_DEFINE(HAVE_POSIX_ACL, 1, [Define to 1 if using POSIX ACL support.])
2205 AC_SUBST(LIBACL_LIBS)
2207 dnl Do not put whitespace before the #include statements below.
2208 dnl Older compilers (eg sunos4 cc) choke on it.
2211 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2212 if test "$with_xaw3d" != no; then
2213 AC_CACHE_VAL(emacs_cv_xaw3d,
2214 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2215 #include <X11/Intrinsic.h>
2216 #include <X11/Xaw3d/Simple.h>]],
2218 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2219 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2220 emacs_cv_xaw3d=no)])
2224 if test $emacs_cv_xaw3d = yes; then
2225 AC_MSG_CHECKING(for xaw3d)
2226 AC_MSG_RESULT([yes; using Lucid toolkit])
2230 AC_DEFINE(HAVE_XAW3D, 1,
2231 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2233 AC_MSG_CHECKING(for xaw3d)
2235 AC_MSG_CHECKING(for libXaw)
2236 AC_CACHE_VAL(emacs_cv_xaw,
2237 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2238 #include <X11/Intrinsic.h>
2239 #include <X11/Xaw/Simple.h>]],
2243 if test $emacs_cv_xaw = yes; then
2244 AC_MSG_RESULT([yes; using Lucid toolkit])
2247 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2248 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2250 AC_MSG_ERROR([No X toolkit could be found.
2251 If you are sure you want Emacs compiled without an X toolkit, pass
2253 to configure. Otherwise, install the development libraries for the toolkit
2254 that you want to use (e.g. Gtk+) and re-run configure.])
2259 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2262 if test "${USE_X_TOOLKIT}" != "none"; then
2263 AC_MSG_CHECKING(X11 toolkit version)
2264 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2265 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2266 [[#if XtSpecificationRelease < 6
2269 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2270 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2271 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2272 AC_MSG_RESULT(6 or newer)
2273 AC_DEFINE(HAVE_X11XTR6, 1,
2274 [Define to 1 if you have the X11R6 or newer version of Xt.])
2275 LIBXTR6="-lSM -lICE"
2277 ## Use libw.a along with X11R6 Xt.
2278 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2281 AC_MSG_RESULT(before 6)
2284 dnl If using toolkit, check whether libXmu.a exists.
2285 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2287 if test x$HAVE_X11XTR6 = xyes; then
2288 LIBS="-lXt -lSM -lICE $LIBS"
2292 AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
2293 test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
2294 dnl ac_cv_lib_Xmu_XmuConvertStandardSelection is also referenced below.
2298 dnl FIXME the logic here seems weird, but this is what cpp was doing.
2299 dnl Why not just test for libxmu in the normal way?
2302 ## These systems don't supply Xmu.
2304 test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
2309 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
2310 if test "${HAVE_X11}" = "yes"; then
2311 if test "${USE_X_TOOLKIT}" != "none"; then
2312 AC_CHECK_LIB(Xext, XShapeQueryExtension)
2317 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2318 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2319 if test -d /usr/include/openmotif; then
2320 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2321 emacs_cv_openmotif=yes
2322 case "$canonical" in
2323 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2324 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2327 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2330 emacs_cv_openmotif=no
2332 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2333 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2334 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2337 Motif version prior to 2.1.
2339 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2340 if test $emacs_cv_motif_version_2_1 = yes; then
2341 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2342 if test x$emacs_cv_openmotif = xyes; then
2343 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2346 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2347 # We put this in CFLAGS temporarily to precede other -I options
2348 # that might be in CFLAGS temporarily.
2349 # We put this in CPPFLAGS where it precedes the other -I options.
2350 OLD_CPPFLAGS=$CPPFLAGS
2352 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2353 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2354 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2356 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2357 if test $emacs_cv_lesstif = yes; then
2358 # Make sure this -I option remains in CPPFLAGS after it is set
2359 # back to REAL_CPPFLAGS.
2360 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2361 # have those other -I options anyway. Ultimately, having this
2362 # directory ultimately in CPPFLAGS will be enough.
2363 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2364 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2367 CPPFLAGS=$OLD_CPPFLAGS
2370 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2371 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2374 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2375 dnl using Motif or Xaw3d is available, and unless
2376 dnl --with-toolkit-scroll-bars=no was specified.
2378 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2379 [Define to 1 if we should use toolkit scroll bars.])dnl
2380 USE_TOOLKIT_SCROLL_BARS=no
2381 if test "${with_toolkit_scroll_bars}" != "no"; then
2382 if test "${USE_X_TOOLKIT}" != "none"; then
2383 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2384 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2386 USE_TOOLKIT_SCROLL_BARS=yes
2387 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2388 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2389 USE_TOOLKIT_SCROLL_BARS=yes
2391 elif test "${HAVE_GTK}" = "yes"; then
2392 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2393 USE_TOOLKIT_SCROLL_BARS=yes
2394 elif test "${HAVE_NS}" = "yes"; then
2395 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2396 USE_TOOLKIT_SCROLL_BARS=yes
2397 elif test "${HAVE_W32}" = "yes"; then
2398 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2399 USE_TOOLKIT_SCROLL_BARS=yes
2403 dnl See if XIM is available.
2404 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2405 #include <X11/Xlib.h>
2406 #include <X11/Xresource.h>]],
2407 [[XIMProc callback;]])],
2409 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2412 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2414 if test "${with_xim}" != "no"; then
2415 AC_DEFINE(USE_XIM, 1,
2416 [Define to 1 if we should use XIM, if it is available.])
2420 if test "${HAVE_XIM}" != "no"; then
2422 if test "$GCC" = yes; then
2423 CFLAGS="$CFLAGS --pedantic-errors"
2425 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2426 #include <X11/Xlib.h>
2427 #include <X11/Xresource.h>]],
2433 XPointer *client_data;
2435 /* If we're not using GCC, it's probably not XFree86, and this is
2436 probably right, but we can't use something like --pedantic-errors. */
2437 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2438 char*, XIMProc, XPointer*);
2440 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2442 [emacs_cv_arg6_star=yes])
2443 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2444 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2445 either XPointer or XPointer*.])dnl
2446 if test "$emacs_cv_arg6_star" = yes; then
2447 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2449 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2454 ### Start of font-backend (under any platform) section.
2455 # (nothing here yet -- this is a placeholder)
2456 ### End of font-backend (under any platform) section.
2458 ### Start of font-backend (under X11) section.
2459 if test "${HAVE_X11}" = "yes"; then
2460 PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
2462 ## Use -lXft if available, unless `--with-xft=no'.
2464 if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2467 if test "x${with_xft}" != "xno"; then
2469 PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
2470 ## Because xftfont.c uses XRenderQueryExtension, we also
2471 ## need to link to -lXrender.
2473 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2474 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2475 OLD_CPPFLAGS="$CPPFLAGS"
2476 OLD_CFLAGS="$CFLAGS"
2478 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2479 CFLAGS="$CFLAGS $XFT_CFLAGS"
2480 XFT_LIBS="-lXrender $XFT_LIBS"
2481 LIBS="$XFT_LIBS $LIBS"
2482 AC_CHECK_HEADER(X11/Xft/Xft.h,
2483 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS))
2485 if test "${HAVE_XFT}" = "yes"; then
2486 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2488 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2490 CPPFLAGS="$OLD_CPPFLAGS"
2491 CFLAGS="$OLD_CFLAGS"
2493 fi # "${HAVE_XFT}" = "yes"
2494 fi # "$HAVE_XFT" != no
2495 fi # "x${with_xft}" != "xno"
2497 ## We used to allow building with FreeType and without Xft.
2498 ## However, the ftx font backend driver is not in good shape.
2499 if test "$HAVE_XFT" != "yes"; then
2500 dnl For the "Does Emacs use" message at the end.
2504 dnl Strict linkers fail with
2505 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2506 dnl if -lfreetype is not specified.
2507 dnl The following is needed to set FREETYPE_LIBS.
2508 PKG_CHECK_MODULES(FREETYPE, freetype2, HAVE_FREETYPE=yes,
2511 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2515 if test "${HAVE_FREETYPE}" = "yes"; then
2516 AC_DEFINE(HAVE_FREETYPE, 1,
2517 [Define to 1 if using the freetype and fontconfig libraries.])
2518 if test "${with_libotf}" != "no"; then
2519 PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
2521 if test "$HAVE_LIBOTF" = "yes"; then
2522 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2523 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2524 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2525 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2526 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2527 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2528 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2532 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2533 dnl Does the new font backend require it, or can it work without it?
2537 if test "${HAVE_LIBOTF}" = yes; then
2538 if test "${with_m17n_flt}" != "no"; then
2539 PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
2540 if test "$HAVE_M17N_FLT" = "yes"; then
2541 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2552 ### End of font-backend (under X11) section.
2554 AC_SUBST(FREETYPE_CFLAGS)
2555 AC_SUBST(FREETYPE_LIBS)
2556 AC_SUBST(FONTCONFIG_CFLAGS)
2557 AC_SUBST(FONTCONFIG_LIBS)
2558 AC_SUBST(LIBOTF_CFLAGS)
2559 AC_SUBST(LIBOTF_LIBS)
2560 AC_SUBST(M17N_FLT_CFLAGS)
2561 AC_SUBST(M17N_FLT_LIBS)
2563 ### Use -lXpm if available, unless `--with-xpm=no'.
2567 if test "${HAVE_W32}" = "yes"; then
2568 if test "${with_xpm}" != "no"; then
2569 SAVE_CPPFLAGS="$CPPFLAGS"
2570 SAVE_LDFLAGS="$LDFLAGS"
2571 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
2572 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
2573 AC_CHECK_HEADER(X11/xpm.h,
2574 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
2575 if test "${HAVE_XPM}" = "yes"; then
2576 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2577 AC_EGREP_CPP(no_return_alloc_pixels,
2578 [#include "X11/xpm.h"
2579 #ifndef XpmReturnAllocPixels
2580 no_return_alloc_pixels
2582 ], HAVE_XPM=no, HAVE_XPM=yes)
2584 if test "${HAVE_XPM}" = "yes"; then
2585 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
2589 CPPFLAGS="$SAVE_CPPFLAGS"
2590 LDFLAGS="$SAVE_LDFLAGS"
2595 if test "${HAVE_XPM}" = "yes"; then
2596 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2601 if test "${HAVE_X11}" = "yes"; then
2602 if test "${with_xpm}" != "no"; then
2603 AC_CHECK_HEADER(X11/xpm.h,
2604 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2605 if test "${HAVE_XPM}" = "yes"; then
2606 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2607 AC_EGREP_CPP(no_return_alloc_pixels,
2608 [#include "X11/xpm.h"
2609 #ifndef XpmReturnAllocPixels
2610 no_return_alloc_pixels
2612 ], HAVE_XPM=no, HAVE_XPM=yes)
2614 if test "${HAVE_XPM}" = "yes"; then
2622 if test "${HAVE_XPM}" = "yes"; then
2623 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2630 ### Use -ljpeg if available, unless `--with-jpeg=no'.
2633 if test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2634 if test "${with_jpeg}" != "no"; then
2635 dnl Checking for jpeglib.h can lose because of a redefinition of
2637 AC_CHECK_HEADER(jerror.h,
2638 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
2641 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2642 if test "${HAVE_JPEG}" = "yes"; then
2643 AC_DEFINE(HAVE_JPEG)
2644 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2645 [#include <jpeglib.h>
2646 version=JPEG_LIB_VERSION
2648 [AC_DEFINE(HAVE_JPEG)],
2649 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2652 if test "${HAVE_JPEG}" = "yes"; then
2658 ### Use -lpng if available, unless `--with-png=no'.
2661 if test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2662 if test "${with_png}" != "no"; then
2663 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
2664 # in /usr/include/libpng.
2665 AC_CHECK_HEADERS(png.h libpng/png.h, break)
2666 if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
2667 AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
2671 if test "${HAVE_PNG}" = "yes"; then
2672 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2673 LIBPNG="-lpng -lz -lm"
2675 AC_CHECK_DECL(png_longjmp,
2677 [AC_DEFINE(PNG_DEPSTRUCT, [],
2678 [Define to empty to suppress deprecation warnings when building
2679 with --enable-gcc-warnings and with libpng versions before 1.5,
2680 which lack png_longjmp.])],
2681 [[#ifdef HAVE_LIBPNG_PNG_H
2682 # include <libpng/png.h>
2691 ### Use -ltiff if available, unless `--with-tiff=no'.
2694 if test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2695 if test "${with_tiff}" != "no"; then
2696 AC_CHECK_HEADER(tiffio.h,
2698 # At least one tiff package requires the jpeg library.
2699 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
2700 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
2703 if test "${HAVE_TIFF}" = "yes"; then
2704 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
2705 dnl FIXME -lz -lm, as per libpng?
2711 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
2714 if test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
2715 || test "${HAVE_W32}" = "yes"; then
2716 AC_CHECK_HEADER(gif_lib.h,
2717 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
2718 # Earlier versions can crash Emacs.
2719 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])
2721 if test "$HAVE_GIF" = yes; then
2723 elif test "$HAVE_GIF" = maybe; then
2724 # If gif_lib.h but no libgif, try libungif.
2725 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
2726 test "$HAVE_GIF" = yes && LIBGIF=-lungif
2729 if test "${HAVE_GIF}" = "yes"; then
2730 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
2735 dnl Check for required libraries.
2736 if test "${HAVE_X11}" = "yes"; then
2739 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
2740 MISSING="libXpm" && WITH_NO="--with-xpm=no"
2741 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
2742 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
2743 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
2744 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
2745 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
2746 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
2747 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
2748 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
2750 if test "X${MISSING}" != X; then
2751 AC_MSG_ERROR([The following required libraries were not found:
2753 Maybe some development libraries/packages are missing?
2754 If you don't want to link with them give
2756 as options to configure])
2760 ### Use -lgpm if available, unless `--with-gpm=no'.
2763 if test "${with_gpm}" != "no"; then
2764 AC_CHECK_HEADER(gpm.h,
2765 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
2767 if test "${HAVE_GPM}" = "yes"; then
2768 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
2774 dnl Check for malloc/malloc.h on darwin
2775 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
2778 ### Use NeXTstep API to implement GUI.
2779 if test "${HAVE_NS}" = "yes"; then
2780 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
2781 if test "${NS_IMPL_COCOA}" = "yes"; then
2782 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
2784 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
2785 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
2786 # See also .m.o rule in Makefile.in */
2787 # FIXME: are all these flags really needed? Document here why. */
2788 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
2789 ## Extra CFLAGS applied to src/*.m files.
2790 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"
2792 # We also have mouse menus.
2797 if test "${HAVE_W32}" = "yes"; then
2801 ### Use session management (-lSM -lICE) if available
2804 if test "${HAVE_X11}" = "yes"; then
2805 AC_CHECK_HEADER(X11/SM/SMlib.h,
2806 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
2808 if test "${HAVE_X_SM}" = "yes"; then
2809 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
2813 *) LIBS="$LIBXSM $LIBS" ;;
2819 ### Use libxml (-lxml2) if available
2821 if test "${with_xml2}" != "no"; then
2822 ### I'm not sure what the version number should be, so I just guessed.
2823 PKG_CHECK_MODULES(LIBXML2, libxml-2.0 > 2.6.17, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2824 if test "${HAVE_LIBXML2}" = "yes"; then
2825 LIBS="$LIBXML2_LIBS $LIBS"
2826 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2827 if test "${HAVE_LIBXML2}" = "yes"; then
2828 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
2835 AC_SUBST(LIBXML2_LIBS)
2836 AC_SUBST(LIBXML2_CFLAGS)
2838 # If netdb.h doesn't declare h_errno, we must declare it by hand.
2839 AC_CACHE_CHECK(whether netdb declares h_errno,
2840 emacs_cv_netdb_declares_h_errno,
2841 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
2842 [[return h_errno;]])],
2843 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
2844 if test $emacs_cv_netdb_declares_h_errno = yes; then
2845 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
2848 # sqrt and other floating-point functions such as fmod and frexp
2849 # are found in -lm on most systems.
2850 AC_CHECK_LIB(m, sqrt)
2852 # Check for mail-locking functions in a "mail" library. Probably this should
2853 # have the same check as for liblockfile below.
2854 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
2855 if test $have_mail = yes; then
2857 LIBS="$LIBS_MAIL $LIBS"
2858 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
2862 dnl Debian, at least:
2863 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
2864 if test $have_lockfile = yes; then
2865 LIBS_MAIL=-llockfile
2866 LIBS="$LIBS_MAIL $LIBS"
2867 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
2869 # If we have the shared liblockfile, assume we must use it for mail
2870 # locking (e.g. Debian). If we couldn't link against liblockfile
2871 # (no liblockfile.a installed), ensure that we don't need to.
2872 dnl This works for files generally, not just executables.
2873 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
2874 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
2875 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
2876 if test $ac_cv_prog_liblockfile = yes; then
2877 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
2878 This probably means that movemail could lose mail.
2879 There may be a `development' package to install containing liblockfile.])
2882 AC_CHECK_HEADERS_ONCE(maillock.h)
2885 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
2886 ## interlock access to the mail spool. The alternative is a lock file named
2887 ## /usr/spool/mail/$USER.lock.
2890 aix4-2) mail_lock="lockf" ;;
2892 gnu|freebsd|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
2894 ## On GNU/Linux systems, both methods are used by various mail programs.
2895 ## I assume most people are using newer mailers that have heard of flock.
2896 ## Change this if you need to.
2897 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
2898 ## configure gets the right answers, and that means *NOT* using flock.
2899 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
2900 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
2901 ## Debian maintainer hasn't provided a clean fix for Emacs.
2902 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
2903 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
2904 ## correct logic. -- fx
2905 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
2906 ## liblockfile is a Free Software replacement for libmail, used on
2907 ## Debian systems and elsewhere. -rfr.
2910 if test $have_mail = yes || test $have_lockfile = yes; then
2911 test $ac_cv_header_maillock_h = yes && mail_lock=no
2917 case "$mail_lock" in
2918 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
2920 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
2922 *) BLESSMAIL_TARGET="need-blessmail" ;;
2924 AC_SUBST(BLESSMAIL_TARGET)
2927 AC_CHECK_FUNCS(gethostname \
2928 getrusage get_current_dir_name \
2930 select getpagesize setlocale \
2931 utimes getrlimit setrlimit shutdown getaddrinfo \
2932 strsignal setitimer \
2933 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
2934 gai_strerror mkstemp getline getdelim fsync sync \
2935 difftime posix_memalign \
2936 getpwent endpwent getgrent endgrent \
2938 cfmakeraw cfsetspeed copysign __executable_start)
2940 ## Eric Backus <ericb@lsid.hp.com> says, HP-UX 9.x on HP 700 machines
2941 ## has a broken `rint' in some library versions including math library
2942 ## version number A.09.05.
2943 ## You can fix the math library by installing patch number PHSS_4630.
2944 ## But we can fix it more reliably for Emacs by just not using rint.
2945 ## We also skip HAVE_RANDOM - see comments in src/conf_post.h.
2948 *) AC_CHECK_FUNCS(random rint) ;;
2951 dnl Cannot use AC_CHECK_FUNCS
2952 AC_CACHE_CHECK([for __builtin_unwind_init],
2953 emacs_cv_func___builtin_unwind_init,
2954 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
2955 emacs_cv_func___builtin_unwind_init=yes,
2956 emacs_cv_func___builtin_unwind_init=no)])
2957 if test $emacs_cv_func___builtin_unwind_init = yes; then
2958 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
2959 [Define to 1 if you have the `__builtin_unwind_init' function.])
2962 AC_CHECK_HEADERS_ONCE(sys/un.h)
2967 AC_CHECK_FUNCS(grantpt)
2969 # PTY-related GNU extensions.
2970 AC_CHECK_FUNCS(getpt posix_openpt)
2972 # Check this now, so that we will NOT find the above functions in ncurses.
2973 # That is because we have not set up to link ncurses in lib-src.
2974 # It's better to believe a function is not available
2975 # than to expect to find it in ncurses.
2976 # Also we need tputs and friends to be able to build at all.
2977 AC_MSG_CHECKING([for library containing tputs])
2978 # Run a test program that contains a call to tputs, a call that is
2979 # never executed. This tests whether a pre-'main' dynamic linker
2980 # works with the library. It's too much trouble to actually call
2981 # tputs in the test program, due to portability hassles. When
2982 # cross-compiling, assume the test program will run if it links.
2983 AC_DEFUN([tputs_link_source], [
2985 [[extern void tputs (const char *, int, int (*)(int));
2986 int main (int argc, char **argv)
2989 tputs (argv[0], 0, 0);
2993 # Maybe curses should be tried earlier?
2994 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
2995 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
2997 if test -z "$tputs_library"; then
3001 LIBS_TERMCAP=-l$tputs_library
3003 LIBS="$LIBS_TERMCAP $LIBS"
3005 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3006 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3008 if test "X$msg" != Xno; then
3012 AC_MSG_RESULT([$msg])
3013 if test "X$msg" = Xno; then
3014 AC_MSG_ERROR([The required function `tputs' was not found in any library.
3015 The following libraries were tried (in order):
3016 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3017 Please try installing whichever of these libraries is most appropriate
3018 for your system, together with its header files.
3019 For example, a libncurses-dev(el) or similar package.])
3022 ## Use termcap instead of terminfo?
3023 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3025 ## FIXME? In the cases below where we unconditionally set
3026 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3027 ## if that was found above to have tputs.
3028 ## Should we use the gnu* logic everywhere?
3030 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3031 ## The ncurses library has been moved out of the System framework in
3032 ## Mac OS X 10.2. So if configure detects it, set the command-line
3033 ## option to use it.
3034 darwin) LIBS_TERMCAP="-lncurses" ;;
3036 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3039 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3040 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3041 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3042 [[#if __FreeBSD_version < 400000
3045 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3047 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3049 if test $emacs_cv_freebsd_terminfo = yes; then
3050 LIBS_TERMCAP="-lncurses"
3053 LIBS_TERMCAP="-ltermcap"
3058 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3060 LIBS_TERMCAP="-ltermcap"
3064 openbsd) LIBS_TERMCAP="-lncurses" ;;
3066 ## hpux: Make sure we get select from libc rather than from libcurses
3067 ## because libcurses on HPUX 10.10 has a broken version of select.
3068 ## We used to use -lc -lcurses, but this may be cleaner.
3069 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3070 # set that way, now it uses the default). Isn't this a contradiction?
3071 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3075 TERMCAP_OBJ=tparam.o
3076 if test $TERMINFO = yes; then
3077 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3078 TERMCAP_OBJ=terminfo.o
3080 AC_SUBST(LIBS_TERMCAP)
3081 AC_SUBST(TERMCAP_OBJ)
3084 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3085 # On Darwin, res_init appears not to be useful: see bug#562 and
3086 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3089 if test $opsys != darwin; then
3091 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3092 #include <arpa/nameser.h>
3093 #include <resolv.h>]],
3094 [[return res_init();]])],
3095 have_res_init=yes, have_res_init=no)
3096 if test "$have_res_init" = no; then
3098 LIBS="$LIBS -lresolv"
3099 AC_MSG_CHECKING(for res_init with -lresolv)
3100 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3101 #include <arpa/nameser.h>
3102 #include <resolv.h>]],
3103 [[return res_init();]])],
3104 have_res_init=yes, have_res_init=no)
3105 AC_MSG_RESULT($have_res_init)
3106 if test "$have_res_init" = yes ; then
3112 if test "$have_res_init" = yes; then
3113 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3117 # Do we need the Hesiod library to provide the support routines?
3118 dnl FIXME? Should we be skipping this on Darwin too?
3120 if test "$with_hesiod" != no ; then
3121 # Don't set $LIBS here -- see comments above. FIXME which comments?
3122 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3123 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3124 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3125 if test "$resolv" = yes ; then
3130 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3131 hesiod=yes, :, $RESOLVLIB)])
3133 if test x"$hesiod" = xyes; then
3134 AC_DEFINE(HAVE_LIBHESIOD, 1,
3135 [Define to 1 if you have the hesiod library (-lhesiod).])
3141 # Do we need libresolv (due to res_init or Hesiod)?
3142 if test "$resolv" = yes && test $opsys != darwin; then
3143 AC_DEFINE(HAVE_LIBRESOLV, 1,
3144 [Define to 1 if you have the resolv library (-lresolv).])
3151 # These tell us which Kerberos-related libraries to use.
3158 if test "${with_kerberos}" != no; then
3159 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3160 if test $have_com_err = yes; then
3161 COM_ERRLIB=-lcom_err
3162 LIBS="$COM_ERRLIB $LIBS"
3163 AC_DEFINE(HAVE_LIBCOM_ERR, 1, [Define to 1 if you have the `com_err' library (-lcom_err).])
3165 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3166 if test $have_crypto = yes; then
3168 LIBS="$CRYPTOLIB $LIBS"
3169 AC_DEFINE(HAVE_LIBCRYPTO, 1, [Define to 1 if you have the `crypto' library (-lcrypto).])
3171 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3172 if test $have_k5crypto = yes; then
3173 CRYPTOLIB=-lk5crypto
3174 LIBS="$CRYPTOLIB $LIBS"
3175 AC_DEFINE(HAVE_LIBK5CRYPTO, 1, [Define to 1 if you have the `k5crypto' library (-lk5crypto).])
3177 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3178 if test $have_krb5=yes; then
3180 LIBS="$KRB5LIB $LIBS"
3181 AC_DEFINE(HAVE_LIBKRB5, 1, [Define to 1 if you have the `krb5' library (-lkrb5).])
3183 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3184 if test "${with_kerberos5}" = no; then
3185 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3186 if test $have_des425 = yes; then
3188 LIBS="$DESLIB $LIBS"
3189 AC_DEFINE(HAVE_LIBDES425, 1, [Define to 1 if you have the `des425' library (-ldes425).])
3191 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3192 if test $have_des = yes; then
3194 LIBS="$DESLIB $LIBS"
3195 AC_DEFINE(HAVE_LIBDES, 1, [Define to 1 if you have the `des' library (-ldes).])
3198 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3199 if test $have_krb4 = yes; then
3201 LIBS="$KRB4LIB $LIBS"
3202 AC_DEFINE(HAVE_LIBKRB4, 1, [Define to 1 if you have the `krb4' library (-lkrb4).])
3204 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3205 if test $have_krb = yes; then
3207 LIBS="$KRB4LIB $LIBS"
3208 AC_DEFINE(HAVE_LIBKRB, 1, [Define to 1 if you have the `krb' library (-lkrb).])
3213 if test "${with_kerberos5}" != no; then
3214 AC_CHECK_HEADERS(krb5.h,
3215 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3216 [#include <krb5.h>])])
3218 AC_CHECK_HEADERS(des.h,,
3219 [AC_CHECK_HEADERS(kerberosIV/des.h,,
3220 [AC_CHECK_HEADERS(kerberos/des.h)])])
3221 AC_CHECK_HEADERS(krb.h,,
3222 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3223 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3225 AC_CHECK_HEADERS(com_err.h)
3228 AC_SUBST(COM_ERRLIB)
3234 AC_CHECK_FUNCS_ONCE(tzset)
3235 AC_MSG_CHECKING(whether localtime caches TZ)
3236 AC_CACHE_VAL(emacs_cv_localtime_cache,
3237 [if test x$ac_cv_func_tzset = xyes; then
3238 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3239 char TZ_GMT0[] = "TZ=GMT0";
3240 char TZ_PST8[] = "TZ=PST8";
3243 time_t now = time ((time_t *) 0);
3244 int hour_GMT0, hour_unset;
3245 if (putenv (TZ_GMT0) != 0)
3247 hour_GMT0 = localtime (&now)->tm_hour;
3249 hour_unset = localtime (&now)->tm_hour;
3250 if (putenv (TZ_PST8) != 0)
3252 if (localtime (&now)->tm_hour == hour_GMT0)
3255 if (localtime (&now)->tm_hour != hour_unset)
3258 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3259 [# If we have tzset, assume the worst when cross-compiling.
3260 emacs_cv_localtime_cache=yes])
3262 # If we lack tzset, report that localtime does not cache TZ,
3263 # since we can't invalidate the cache if we don't have tzset.
3264 emacs_cv_localtime_cache=no
3266 AC_MSG_RESULT($emacs_cv_localtime_cache)
3267 if test $emacs_cv_localtime_cache = yes; then
3268 AC_DEFINE(LOCALTIME_CACHE, 1,
3269 [Define to 1 if localtime caches TZ.])
3273 AC_CHECK_FUNC(socket, , ok_so_far=no)
3274 if test $ok_so_far = yes; then
3275 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3277 if test $ok_so_far = yes; then
3278 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3280 if test $ok_so_far = yes; then
3281 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3282 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3283 [Define to 1 if you have inet sockets.])
3286 if test -f /usr/lpp/X11/bin/smt.exp; then
3287 AC_DEFINE(HAVE_AIX_SMT_EXP, 1,
3288 [Define to 1 if the file /usr/lpp/X11/bin/smt.exp exists.])
3291 AC_MSG_CHECKING(whether system supports dynamic ptys)
3292 if test -d /dev/pts && ls -d /dev/ptmx > /dev/null 2>&1 ; then
3294 AC_DEFINE(HAVE_DEV_PTMX, 1, [Define to 1 if dynamic ptys are supported.])
3299 dnl Check for a Solaris 2.4 vfork bug that Autoconf misses (through 2.69).
3300 dnl This can be removed once we assume Autoconf 2.70.
3302 *-solaris2.4 | *-solaris2.4.*)
3303 dnl Disable the Autoconf-generated vfork test.
3304 : ${ac_cv_func_vfork_works=no};;
3309 AC_CHECK_FUNCS(snprintf)
3311 dnl Adapted from Haible's version.
3312 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3313 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3314 [[char* cs = nl_langinfo(CODESET);]])],
3315 emacs_cv_langinfo_codeset=yes,
3316 emacs_cv_langinfo_codeset=no)
3318 if test $emacs_cv_langinfo_codeset = yes; then
3319 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3320 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3325 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3326 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3327 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3328 if test "$emacs_cv_c_restrict_arr" = yes; then
3329 AC_DEFINE(__restrict_arr, __restrict,
3330 [Define to compiler's equivalent of C99 restrict keyword in array
3331 declarations. Define as empty for no equivalent.])
3334 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3335 dnl how the tty code is related to POSIX and/or other versions of termios.
3336 dnl The following looks like a useful start.
3338 dnl AC_SYS_POSIX_TERMIOS
3339 dnl if test $ac_cv_sys_posix_termios = yes; then
3340 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3341 dnl and macros for terminal control.])
3342 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3345 dnl Turned on June 1996 supposing nobody will mind it.
3346 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3347 in the full name stands for the login id.])
3349 dnl Every platform that uses configure (ie every non-MS platform)
3350 dnl supports this. There is a create-lockfiles option you can
3351 dnl customize if you do not want the lock files to be written.
3352 dnl So it is not clear that this #define still needs to exist.
3353 AC_DEFINE(CLASH_DETECTION, 1, [Define if you want lock files to be written,
3354 so that Emacs can tell instantly when you try to modify a file that
3355 someone else has modified in his/her Emacs.])
3357 dnl Everybody supports this, except MS.
3358 dnl Seems like the kind of thing we should be testing for, though.
3359 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3360 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3362 dnl Everybody supports this, except MS-DOS.
3363 dnl Seems like the kind of thing we should be testing for, though.
3364 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3365 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3366 4.2-compatible sockets.])
3368 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3370 AC_DEFINE(NULL_DEVICE, ["/dev/null"], [Name of the file to open to get
3371 a null file, or a data sink.])
3373 AC_DEFINE(SEPCHAR, [':'], [Character that separates PATH elements.])
3375 dnl Everybody supports this, except MS-DOS.
3376 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3378 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3381 AC_DEFINE(DIRECTORY_SEP, ['/'],
3382 [Character that separates directories in a file name.])
3384 dnl Only used on MS platforms.
3385 AH_TEMPLATE(DEVICE_SEP, [Character that separates a device in a file name.])
3387 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
3388 [Returns true if character is a device separator.])
3390 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
3391 [Returns true if character is a directory separator.])
3393 dnl On MS, this also accepts IS_DEVICE_SEP.
3394 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
3395 [Returns true if character is any form of separator.])
3398 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
3402 dnl Unfortunately without libXmu we cannot support EditRes.
3403 if test x$ac_cv_lib_Xmu_XmuConvertStandardSelection != xyes; then
3404 AC_DEFINE(NO_EDITRES, 1)
3409 dnl Assar Westerlund <assar@sics.se> says this is necessary for
3410 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
3411 AC_DEFINE(NO_EDITRES, 1)
3417 irix6-5 | sol2* | unixware )
3418 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
3419 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
3420 dnl need the constant to dimension an array. So wire in the appropriate
3422 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
3426 emacs_broken_SIGIO=no
3429 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
3430 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
3431 hpux* | irix6-5 | openbsd | sol2* | unixware )
3432 emacs_broken_SIGIO=yes
3436 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
3437 dnl the way this system works, libc functions that return malloced
3438 dnl memory use the libc malloc implementation. Calling xfree or
3439 dnl xrealloc on the results of such functions results in a crash.
3441 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
3442 dnl but that does not currently work on this system.
3444 dnl It is possible to completely override the malloc implementation on
3445 dnl AIX, but that involves putting the malloc functions in a shared
3446 dnl library and setting the MALLOCTYPE environment variable to point to
3447 dnl that shared library.
3449 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
3450 dnl to avoid a crash just use the Emacs implementation for that function.
3452 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
3453 dnl of this file, so that we do not check for get_current_dir_name
3454 dnl on AIX. But that might be fragile if something else ends
3455 dnl up testing for get_current_dir_name as a dependency.
3456 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
3457 get_current_dir_name should not be used.])
3461 dnl Circumvent a bug in FreeBSD. In the following sequence of
3462 dnl writes/reads on a PTY, read(2) returns bogus data:
3464 dnl write(2) 1022 bytes
3465 dnl write(2) 954 bytes, get EAGAIN
3466 dnl read(2) 1024 bytes in process_read_output
3467 dnl read(2) 11 bytes in process_read_output
3469 dnl That is, read(2) returns more bytes than have ever been written
3470 dnl successfully. The 1033 bytes read are the 1022 bytes written
3471 dnl successfully after processing (for example with CRs added if the
3472 dnl terminal is set up that way which it is here). The same bytes will
3473 dnl be seen again in a later read(2), without the CRs.
3474 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
3475 work around an issue when reading from a PTY.])
3481 dnl FIXME Can't we test if this exists (eg /proc/$$)?
3482 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
3487 darwin | freebsd | netbsd | openbsd )
3488 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
3489 close a pty to make it a controlling terminal (it is already a
3490 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
3494 dnl FIXME Surely we can test for this rather than hard-code it.
3496 netbsd | openbsd) sound_device="/dev/audio" ;;
3497 *) sound_device="/dev/dsp" ;;
3501 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
3502 [Name of the default sound device.])
3505 dnl Emacs can read input using SIGIO and buffering characters itself,
3506 dnl or using CBREAK mode and making C-g cause SIGINT.
3507 dnl The choice is controlled by the variable interrupt_input.
3509 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
3511 dnl Emacs uses the presence of the USABLE_SIGIO macro
3512 dnl to indicate whether or not signal-driven I/O is possible. It uses
3513 dnl INTERRUPT_INPUT to decide whether to use it by default.
3515 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
3516 dnl CBREAK mode has two disadvantages
3517 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
3518 dnl I hear that in system V this problem does not exist.
3519 dnl 2) Control-G causes output to be discarded.
3520 dnl I do not know whether this can be fixed in system V.
3522 dnl Another method of doing input is planned but not implemented.
3523 dnl It would have Emacs fork off a separate process
3524 dnl to read the input and send it to the true Emacs process
3527 darwin | gnu-linux | gnu-kfreebsd )
3528 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
3533 dnl If the system's imake configuration file defines `NeedWidePrototypes'
3534 dnl as `NO', we must define NARROWPROTO manually. Such a define is
3535 dnl generated in the Makefile generated by `xmkmf'. If we don't define
3536 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
3537 dnl taking float or double parameters.
3539 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
3540 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
3541 file defines `NeedWidePrototypes' as `NO'.])
3546 dnl Used in process.c, this must be a loop, even if it only runs once.
3547 dnl (Except on SGI; see below. Take that, clarity and consistency!)
3548 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
3549 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
3550 dnl trying suffixes 0-16.
3551 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
3552 first PTY, if PTYs are supported.])
3553 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
3554 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
3555 end of a PTY, if non-standard.])
3556 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
3557 end of a PTY, if non-standard.])
3561 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
3562 dnl You allocate a pty by opening /dev/ptc to get the master side.
3563 dnl To get the name of the slave side, you just ttyname() the master side.
3564 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
3565 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
3569 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3570 dnl multi-line AC_DEFINEs are hard. :(
3571 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 (0)])
3572 AC_DEFINE(PTY_NAME_SPRINTF, [])
3573 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3576 dnl FIXME? Maybe use same as freebsd - see bug#12040.
3578 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3579 dnl Not used, because PTY_ITERATION is defined.
3580 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3581 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
3582 dnl But we don't have to block SIGCHLD because it is blocked in the
3583 dnl implementation of grantpt.
3584 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (0)])
3585 AC_DEFINE(PTY_NAME_SPRINTF, [])
3586 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3590 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3593 gnu-linux | gnu-kfreebsd | freebsd | netbsd )
3595 if test "x$ac_cv_func_grantpt" = xyes; then
3596 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
3597 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3598 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
3599 dnl to prevent sigchld_handler from intercepting the child's death.
3600 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) { close (fd); return -1; } snprintf (pty_name, sizeof pty_name, "%s", ptyname); }])
3601 dnl if HAVE_POSIX_OPENPT
3602 if test "x$ac_cv_func_posix_openpt" = xyes; then
3603 AC_DEFINE(PTY_OPEN, [fd = posix_openpt (O_RDWR | O_NOCTTY)])
3604 AC_DEFINE(PTY_NAME_SPRINTF, [])
3606 elif test "x$ac_cv_func_getpt" = xyes; then
3607 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
3608 AC_DEFINE(PTY_NAME_SPRINTF, [])
3610 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
3613 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3618 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3619 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
3620 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
3624 dnl It looks like this cannot be right, because it is not a loop.
3625 dnl However, process.c actually does this:
3631 dnl which presumably makes it OK, since irix == sgi (?).
3632 dnl FIXME it seems like this special treatment is unnecessary?
3633 dnl Why can't irix use a single-trip loop like eg cygwin?
3634 AC_DEFINE(PTY_ITERATION, [])
3635 dnl Not used, because PTY_ITERATION is defined.
3636 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
3637 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); }])
3638 dnl No need to get the pty name at all.
3639 AC_DEFINE(PTY_NAME_SPRINTF, [])
3640 dnl No need to use sprintf to get the tty name--we get that from _getpty.
3641 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3645 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
3646 dnl from intercepting that death. If any child but grantpt's should die
3647 dnl within, it should be caught after sigrelse(2).
3648 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, sizeof pty_name, "%s", ptyname); }])
3652 dnl Comments are as per sol2*.
3653 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, sizeof pty_name, "%s", ptyname); }])
3660 dnl This change means that we don't loop through allocate_pty too
3661 dnl many times in the (rare) event of a failure.
3662 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
3663 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
3664 dnl Push various streams modules onto a PTY channel. Used in process.c.
3665 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.])
3670 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
3671 "typing" a signal character on the pty.])
3674 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
3675 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
3676 aix4-2 | cygwin | gnu | irix6-5 | freebsd | netbsd | openbsd )
3677 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3680 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
3681 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
3682 gnu-linux | gnu-kfreebsd )
3684 AC_MSG_CHECKING([for signals via characters])
3685 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3686 #include <linux/version.h>
3687 #if LINUX_VERSION_CODE < 0x20400
3688 # error "Linux version too old"
3690 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
3692 AC_MSG_RESULT([$emacs_signals_via_chars])
3693 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3698 dnl Used in vm-limit.c
3699 AH_TEMPLATE(DATA_START, [Address of the start of the data segment.])
3700 dnl Used in lisp.h, emacs.c, mem-limits.h
3701 dnl NEWS.18 describes this as "a number which contains
3702 dnl the high bits to be inclusive or'ed with pointers that are unpacked."
3703 AH_TEMPLATE(DATA_SEG_BITS, [Extra bits to be or'd in with any pointers
3704 stored in a Lisp_Object.])
3705 dnl if Emacs uses fewer than 32 bits for the value field of a LISP_OBJECT.
3709 dnl libc defines data_start.
3710 AC_DEFINE(DATA_START, [({ extern int data_start; (char *) &data_start; })])
3714 dnl The data segment on this machine always starts at address 0x40000000.
3715 AC_DEFINE(DATA_START, [0x40000000])
3716 AC_DEFINE(DATA_SEG_BITS, [0x40000000])
3719 AC_DEFINE(DATA_START, [0x10000000])
3720 AC_DEFINE(DATA_SEG_BITS, [0x10000000])
3725 AH_TEMPLATE(TAB3, [Undocumented.])
3728 darwin) AC_DEFINE(TAB3, OXTABS) ;;
3730 gnu | freebsd | netbsd | openbsd )
3731 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
3732 AC_DEFINE(TAB3, OXTABS)
3735 gnu-linux | gnu-kfreebsd )
3736 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3740 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
3741 [do { extern void *__libc_ia64_register_backing_store_base; __builtin_ia64_flushrs (); mark_memory (__libc_ia64_register_backing_store_base, __builtin_ia64_bsp ());} while (0)],
3742 [Mark a secondary stack, like the register stack on the ia64.]), [])
3746 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
3747 run_time_remap; for HPUX.])
3752 dnl These won't be used automatically yet. We also need to know, at least,
3753 dnl that the stack is continuous.
3754 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
3755 registers relevant for conservative garbage collection in the jmp_buf.])
3757 AH_TEMPLATE(GC_MARK_STACK, [Define to GC_USE_GCPROS_AS_BEFORE if
3758 conservative garbage collection is not known to work.])
3762 aix4-2 | hpux* | unixware)
3763 dnl Conservative garbage collection has not been tested, so for now
3764 dnl play it safe and stick with the old-fashioned way of marking.
3765 AC_DEFINE(GC_MARK_STACK, [GC_USE_GCPROS_AS_BEFORE])
3768 dnl Not all the architectures are tested, but there are Debian packages
3769 dnl for SCM and/or Guile on them, so the technique must work. See also
3770 dnl comments in alloc.c concerning setjmp and gcc.
3771 dnl Fixme: it's probably safe to just use the GCC conditional below.
3772 gnu-linux | gnu-kfreebsd )
3773 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3774 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
3775 || defined __alpha__ || defined __mips__ || defined __s390__ \
3776 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
3777 || defined __ia64__ || defined __sh__
3780 # error "setjmp not known to work on this arch"
3782 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1),
3783 AC_DEFINE(GC_MARK_STACK, [GC_USE_GCPROS_AS_BEFORE]) )
3788 if test x$GCC = xyes; then
3789 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
3790 AC_DEFINE(GC_SETJMP_WORKS, 1)
3793 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
3794 freebsd | netbsd | openbsd | irix6-5 | sol2* )
3795 AC_DEFINE(GC_SETJMP_WORKS, 1)
3800 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
3803 [[#include <setjmp.h>
3807 _longjmp (j, 1);]])],
3808 [emacs_cv_func__setjmp=yes],
3809 [emacs_cv_func__setjmp=no])])
3810 if test $emacs_cv_func__setjmp = yes; then
3811 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
3813 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
3816 [[#include <setjmp.h>
3819 if (! sigsetjmp (j, 1))
3820 siglongjmp (j, 1);]])],
3821 [emacs_cv_func_sigsetjmp=yes],
3822 [emacs_cv_func_sigsetjmp=no])])
3823 if test $emacs_cv_func_sigsetjmp = yes; then
3824 AC_DEFINE([HAVE_SIGSETJMP], 1,
3825 [Define to 1 if sigsetjmp and siglongjmp work.
3826 The value of this symbol is irrelevant if HAVE__SETJMP is defined.])
3832 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
3833 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
3834 dnl and this is all we need.
3835 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
3842 dnl Used in xfaces.c.
3843 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
3844 some systems, where it requires time.h.])
3849 dnl Define symbols to identify the version of Unix this is.
3850 dnl Define all the symbols that apply correctly.
3851 AH_TEMPLATE(BSD_SYSTEM, [Define if the system is compatible with BSD 4.2.])
3852 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
3853 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
3854 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
3855 AH_TEMPLATE(USG5, [Define if the system is compatible with System V.])
3856 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
3862 dnl This symbol should be defined on AIX Version 3 ???????
3863 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3865 # error "_AIX not defined"
3867 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
3871 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
3875 dnl BSD4_3 and BSD4_4 are already defined in sys/param.h.
3876 AC_DEFINE(BSD_SYSTEM, [])
3877 dnl More specific than the above two. We cannot use __APPLE__ as this
3878 dnl may not be defined on non-OSX Darwin, and we cannot define DARWIN
3879 dnl here because Panther and lower CoreFoundation.h uses DARWIN to
3880 dnl distinguish OS X from pure Darwin.
3881 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
3885 dnl Hack to avoid calling AC_PREPROC_IFELSE multiple times.
3886 dnl Would not be needed with autoconf >= 2.67, where the
3887 dnl preprocessed output is accessible in "conftest.i".
3888 AC_DEFINE(BSD_SYSTEM_AHB, 1, [Define if AH_BOTTOM should change BSD_SYSTEM.])
3891 gnu | netbsd | openbsd )
3892 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3894 # error "BSD_SYSTEM not defined"
3896 ]], [[]])], [], AC_DEFINE(BSD_SYSTEM, 43) )
3899 gnu-linux | gnu-kfreebsd )
3901 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
3907 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
3913 AC_DEFINE(USG5_4, [])
3914 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
3920 AC_DEFINE(USG5_4, [])
3921 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
3927 AC_DEFINE(USG5_4, [])
3931 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
3934 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
3935 emacs_cv_usable_FIONREAD=no
3940 [AC_LANG_PROGRAM([[#include <sys/types.h>
3941 #include <sys/ioctl.h>
3943 # include <sys/filio.h>
3946 [[int foo = ioctl (0, FIONREAD, &foo);]])],
3947 [emacs_cv_usable_FIONREAD=yes],
3948 [emacs_cv_usable_FIONREAD=no])
3951 if test $emacs_cv_usable_FIONREAD = yes; then
3952 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
3954 if test $emacs_broken_SIGIO = no; then
3955 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
3957 [AC_LANG_PROGRAM([[#include <fcntl.h>
3960 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
3961 [emacs_cv_usable_SIGIO=yes],
3962 [emacs_cv_usable_SIGIO=no])],
3963 [emacs_cv_usable_SIGIO=yes],
3964 [emacs_cv_usable_SIGIO=no])
3965 if test $emacs_cv_usable_SIGIO = yes; then
3966 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
3973 dnl Emacs supplies its own malloc, but glib (part of Gtk+) calls
3974 dnl memalign and on Cygwin, that becomes the Cygwin-supplied memalign.
3975 dnl As malloc is not the Cygwin malloc, the Cygwin memalign always
3976 dnl returns ENOSYS. A workaround is to set G_SLICE=always-malloc. */
3978 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
3979 G_SLICE environment variable to "always-malloc" at startup, if
3984 dnl It works to open the pty's tty in the parent (Emacs), then
3985 dnl close and reopen it in the child.
3986 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
3987 works to open a pty's tty in the parent process, then close and
3988 reopen it in the child.])
3992 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
3993 use VSUSP instead of VSWTCH.])
3997 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4002 # Set up the CFLAGS for real compilation, so we can substitute it.
4003 CFLAGS="$REAL_CFLAGS"
4004 CPPFLAGS="$REAL_CPPFLAGS"
4006 ## Hack to detect a buggy GCC version.
4007 if test "x$GCC" = xyes \
4008 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4009 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4010 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4011 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4014 version=$PACKAGE_VERSION
4016 copyright="Copyright (C) 2012 Free Software Foundation, Inc."
4017 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4018 [Short copyright string for this version of Emacs.])
4021 ### Specify what sort of things we'll be editing into Makefile and config.h.
4022 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4024 AC_SUBST(configuration)
4029 AC_SUBST(exec_prefix)
4032 AC_SUBST(sharedstatedir)
4033 AC_SUBST(libexecdir)
4038 AC_SUBST(standardlisppath)
4039 AC_SUBST(locallisppath)
4041 AC_SUBST(x_default_search_path)
4043 AC_SUBST(archlibdir)
4048 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4049 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4050 ## end of LIBX_BASE, but nothing ever set it.
4051 AC_SUBST(LD_SWITCH_X_SITE)
4052 AC_SUBST(C_SWITCH_X_SITE)
4053 AC_SUBST(GNUSTEP_CFLAGS)
4055 ## Used in lwlib/Makefile.in.
4056 AC_SUBST(X_TOOLKIT_TYPE)
4058 AC_SUBST(ns_appbindir)
4059 AC_SUBST(ns_appresdir)
4061 AC_SUBST(GNU_OBJC_CFLAGS)
4062 AC_SUBST(OTHER_FILES)
4064 if test -n "${term_header}"; then
4065 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4066 [Define to the header for the built-in window system.])
4069 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4070 [Define to the canonical Emacs configuration name.])
4071 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${ac_configure_args}",
4072 [Define to the options passed to configure.])
4073 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4074 define this to include extra configuration information.])
4079 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4080 AC_DEFINE(HAVE_X_WINDOWS, 1,
4081 [Define to 1 if you want to use the X window system.])
4083 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o xgselect.o"
4085 if test "$HAVE_XFT" = "yes"; then
4086 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4087 elif test "$HAVE_FREETYPE" = "yes"; then
4088 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4098 if test "${USE_X_TOOLKIT}" != "none" ; then
4100 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4101 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4102 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4103 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4104 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4108 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4109 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4113 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4114 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4115 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4119 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4120 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4123 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4126 AC_SUBST(WIDGET_OBJ)
4129 case "$USE_X_TOOLKIT" in
4130 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4131 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4132 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4134 AC_SUBST(TOOLKIT_LIBW)
4136 if test "$USE_X_TOOLKIT" = "none"; then
4137 LIBXT_OTHER="\$(LIBXSM)"
4138 OLDXMENU_TARGET="really-oldXMenu"
4140 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4141 OLDXMENU_TARGET="really-lwlib"
4143 AC_SUBST(LIBXT_OTHER)
4145 ## The X Menu stuff is present in the X10 distribution, but missing
4146 ## from X11. If we have X10, just use the installed library;
4147 ## otherwise, use our own copy.
4148 if test "${HAVE_X11}" = "yes" ; then
4149 AC_DEFINE(HAVE_X11, 1,
4150 [Define to 1 if you want to use version 11 of X windows.
4151 Otherwise, Emacs expects to use version 10.])
4153 if test "$USE_X_TOOLKIT" = "none"; then
4154 OLDXMENU="\${oldXMenudir}/libXMenu11.a"
4156 OLDXMENU="\${lwlibdir}/liblw.a"
4158 LIBXMENU="\$(OLDXMENU)"
4159 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4160 OLDXMENU_DEPS="\${OLDXMENU} ../src/\${OLDXMENU}"
4162 ## For a syntactically valid Makefile; not actually used for anything.
4163 ## See comments in src/Makefile.in.
4165 ## FIXME This case (!HAVE_X11 && HAVE_X_WINDOWS) is no longer possible(?).
4166 if test "${HAVE_X_WINDOWS}" = "yes"; then
4175 if test "$HAVE_GTK" = "yes" || test "$HAVE_MENUS" != "yes"; then
4182 AC_SUBST(OLDXMENU_TARGET)
4185 AC_SUBST(LIBX_OTHER)
4186 AC_SUBST(OLDXMENU_DEPS)
4188 if test "${HAVE_MENUS}" = "yes" ; then
4189 AC_DEFINE(HAVE_MENUS, 1,
4190 [Define to 1 if you have mouse menus.
4191 (This is automatic if you use X, but the option to specify it remains.)
4192 It is also defined with other window systems that support xmenu.c.])
4195 if test "${GNU_MALLOC}" = "yes" ; then
4196 AC_DEFINE(GNU_MALLOC, 1,
4197 [Define to 1 if you want to use the GNU memory allocator.])
4201 if test "${REL_ALLOC}" = "yes" ; then
4202 AC_DEFINE(REL_ALLOC, 1,
4203 [Define REL_ALLOC if you want to use the relocating allocator for
4206 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4208 AC_SUBST(RALLOC_OBJ)
4210 if test "$opsys" = "cygwin"; then
4211 CYGWIN_OBJ="sheap.o cygw32.o"
4212 ## Cygwin differs because of its unexec().
4214 POST_ALLOC_OBJ=lastfile.o
4217 PRE_ALLOC_OBJ=lastfile.o
4220 AC_SUBST(CYGWIN_OBJ)
4221 AC_SUBST(PRE_ALLOC_OBJ)
4222 AC_SUBST(POST_ALLOC_OBJ)
4224 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4225 # it temporarily reverts them to their pre-pkg-config values,
4226 # because gnulib needs to work with both src (which uses the
4227 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4228 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4229 # and it therefore needs to run in an environment where LIBS does not
4230 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4231 # for some package unrelated to lib-src.
4234 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4235 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4236 gl_ASSERT_NO_GNULIB_POSIXCHECK
4237 gl_ASSERT_NO_GNULIB_TESTS
4243 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4246 ## The -headerpad option tells ld (see man page) to leave room at the
4247 ## end of the header for adding load commands. Needed for dumping.
4248 ## 0x690 is the total size of 30 segment load commands (at 56
4249 ## each); under Cocoa 31 commands are required.
4250 if test "$HAVE_NS" = "yes"; then
4251 libs_nsgui="-framework AppKit"
4257 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4259 ## This is here because src/Makefile.in did some extra fiddling around
4260 ## with LD_SWITCH_SYSTEM. The cpp logic was:
4261 ## #ifndef LD_SWITCH_SYSTEM
4262 ## #if !defined (__GNUC__) && ((defined (BSD_SYSTEM) && !defined (COFF)))
4263 ## Since all the *bsds define LD_SWITCH_SYSTEM, this simplifies to:
4264 ## not using gcc, darwin.
4265 ## Because this was done in src/Makefile.in, the resulting part of
4266 ## LD_SWITCH_SYSTEM was not used in configure (ie, in ac_link).
4267 ## It therefore seems cleaner to put this in LD_SWITCH_SYSTEM_TEMACS,
4268 ## rather than LD_SWITCH_SYSTEM.
4269 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4270 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4273 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4274 ## find X at run-time.
4275 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4276 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4277 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4278 ## had different values in configure (in ac_link) and src/Makefile.in.
4279 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4280 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4282 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4285 if test "$NS_IMPL_GNUSTEP" = "yes"; then
4286 LD_SWITCH_SYSTEM_TEMACS="${LD_SWITCH_SYSTEM_TEMACS} -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES} -lgnustep-gui -lgnustep-base -lobjc -lpthread"
4289 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4295 ## gnu: GNU needs its own crt0.
4296 aix4-2|cygwin|darwin|gnu|hpux*|irix6-5|sol2*|unixware) ORDINARY_LINK=yes ;;
4298 ## On post 1.3 releases of NetBSD, gcc -nostdlib also clears the
4299 ## library search parth, i.e. it won't search /usr/lib for libc and
4300 ## friends. Using -nostartfiles instead avoids this problem, and
4301 ## will also work on earlier NetBSD releases.
4302 netbsd|openbsd) LD_FIRSTFLAG="-nostartfiles" ;;
4304 ## powerpc*: NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp> says
4305 ## MkLinux/LinuxPPC needs this.
4306 ## s390x-* only supports opsys = gnu-linux so it can be added here.
4308 case "$canonical" in
4309 powerpc*|s390x-*) LD_FIRSTFLAG="-nostdlib" ;;
4315 if test "x$ORDINARY_LINK" = "xyes"; then
4318 AC_DEFINE(ORDINARY_LINK, 1, [Define if the C compiler is the linker.])
4320 ## The system files defining neither ORDINARY_LINK nor LD_FIRSTFLAG are:
4321 ## freebsd, gnu-* not on powerpc*|s390x*.
4322 elif test "x$GCC" = "xyes" && test "x$LD_FIRSTFLAG" = "x"; then
4324 ## Versions of GCC >= 2.0 put their library, libgcc.a, in obscure
4325 ## places that are difficult to figure out at make time. Fortunately,
4326 ## these same versions allow you to pass arbitrary flags on to the
4327 ## linker, so there is no reason not to use it as a linker.
4329 ## Well, it is not quite perfect. The "-nostdlib" keeps GCC from
4330 ## searching for libraries in its internal directories, so we have to
4331 ## ask GCC explicitly where to find libgcc.a (LIB_GCC below).
4332 LD_FIRSTFLAG="-nostdlib"
4335 ## FIXME? What setting of EDIT_LDFLAGS should this have?
4336 test "$NS_IMPL_GNUSTEP" = "yes" && LD_FIRSTFLAG="-rdynamic"
4338 AC_SUBST(LD_FIRSTFLAG)
4341 ## FIXME? The logic here is not precisely the same as that above.
4342 ## There is no check here for a pre-defined LD_FIRSTFLAG.
4343 ## Should we only be setting LIB_GCC if LD ~ -nostdlib?
4345 if test "x$GCC" = "xyes" && test "x$ORDINARY_LINK" != "xyes"; then
4348 freebsd|netbsd|openbsd) LIB_GCC= ;;
4351 ## armin76@gentoo.org reported that the lgcc_s flag is necessary to
4352 ## build on ARM EABI under GNU/Linux. (Bug#5518)
4358 ## FIXME? s/gnu-linux.h used to define LIB_GCC as below, then
4359 ## immediately undefine it again and redefine it to empty.
4360 ## Was the C_SWITCH_X_SITE part really necessary?
4361 ## LIB_GCC=`$CC $C_SWITCH_X_SITE -print-libgcc-file-name`
4367 ## Ask GCC where to find libgcc.a.
4368 *) LIB_GCC=`$CC -print-libgcc-file-name 2> /dev/null` ;;
4373 ## Common for all window systems
4374 if test "$window_system" != "none"; then
4375 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4376 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4379 AC_SUBST(WINDOW_SYSTEM_OBJ)
4381 AH_TOP([/* GNU Emacs site configuration template file.
4383 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2012
4384 Free Software Foundation, Inc.
4386 This file is part of GNU Emacs.
4388 GNU Emacs is free software: you can redistribute it and/or modify
4389 it under the terms of the GNU General Public License as published by
4390 the Free Software Foundation, either version 3 of the License, or
4391 (at your option) any later version.
4393 GNU Emacs is distributed in the hope that it will be useful,
4394 but WITHOUT ANY WARRANTY; without even the implied warranty of
4395 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4396 GNU General Public License for more details.
4398 You should have received a copy of the GNU General Public License
4399 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4402 /* No code in Emacs #includes config.h twice, but some bits of code
4403 intended to work with other packages as well (like gmalloc.c)
4404 think they can include it as many times as they like. */
4405 #ifndef EMACS_CONFIG_H
4406 #define EMACS_CONFIG_H
4409 AH_BOTTOM([#include <conf_post.h>
4411 #endif /* EMACS_CONFIG_H */
4420 #### Report on what we decided to do.
4421 #### Report GTK as a toolkit, even if it doesn't use Xt.
4422 #### It makes printing result more understandable as using GTK sets
4423 #### toolkit_scroll_bars to yes by default.
4424 if test "${HAVE_GTK}" = "yes"; then
4425 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
4429 Configured for \`${canonical}'.
4431 Where should the build process find the source code? ${srcdir}
4432 What compiler should emacs be built with? ${CC} ${CFLAGS}
4433 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4434 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4435 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4436 What window system should Emacs use? ${window_system}
4437 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4439 if test -n "${x_includes}"; then
4440 echo " Where do we find X Windows header files? ${x_includes}"
4442 echo " Where do we find X Windows header files? Standard dirs"
4444 if test -n "${x_libraries}"; then
4445 echo " Where do we find X Windows libraries? ${x_libraries}"
4447 echo " Where do we find X Windows libraries? Standard dirs"
4450 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4451 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4452 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4453 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4454 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4455 echo " Does Emacs use -lpng? ${HAVE_PNG}"
4456 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4457 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4459 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4460 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4461 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4462 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4463 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4464 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4465 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4467 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4468 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4469 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
4470 echo " Does Emacs use -lxft? ${HAVE_XFT}"
4472 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
4475 if test -n "${EMACSDATA}"; then
4476 echo " Environment variable EMACSDATA set to: $EMACSDATA"
4478 if test -n "${EMACSDOC}"; then
4479 echo " Environment variable EMACSDOC set to: $EMACSDOC"
4484 if test "$HAVE_NS" = "yes"; then
4486 echo "You must run \"${MAKE-make} install\" in order to test the built application.
4487 The installed application will go to nextstep/Emacs.app and can be
4488 run or moved from there."
4489 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
4490 echo "The application will be fully self-contained."
4492 echo "The lisp resources for the application will be installed under ${prefix}.
4493 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
4494 to run if these resources are not installed."
4499 if test "${opsys}" = "cygwin"; then
4501 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
4507 # Remove any trailing slashes in these variables.
4508 [test "${prefix}" != NONE &&
4509 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
4510 test "${exec_prefix}" != NONE &&
4511 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
4513 if test "$HAVE_NS" = "yes"; then
4514 if test "$NS_IMPL_GNUSTEP" = yes; then
4515 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
4516 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
4518 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
4519 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
4523 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
4524 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
4525 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
4526 dnl (else you get "no `Makefile.am' found for any configure output").
4527 dnl This will work, but you get a config.status that is not quite right
4528 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
4529 dnl That doesn't have any obvious consequences for Emacs, but on the whole
4530 dnl it seems better to just live with the duplication.
4531 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile"
4533 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
4534 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
4535 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
4536 leim/Makefile nextstep/Makefile])
4538 dnl test/ is not present in release tarfiles.
4539 opt_makefile=test/automated/Makefile
4541 if test -f "$srcdir/$opt_makefile.in"; then
4542 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4543 dnl Again, it's best not to use a variable. Though you can add
4544 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
4545 AC_CONFIG_FILES([test/automated/Makefile])
4549 dnl admin/ may or may not be present.
4550 opt_makefile=admin/unidata/Makefile
4552 if test -f "$srcdir/$opt_makefile.in"; then
4553 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4554 AC_CONFIG_FILES([admin/unidata/Makefile])
4558 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
4560 AC_SUBST(SUBDIR_MAKEFILES_IN)
4562 dnl Make the necessary directories, if they don't exist.
4563 AC_CONFIG_COMMANDS([mkdirs], [
4564 for dir in etc lisp ; do
4565 test -d ${dir} || mkdir ${dir}
4569 dnl You might wonder (I did) why epaths.h is generated by running make,
4570 dnl rather than just letting configure generate it from epaths.in.
4571 dnl One reason is that the various paths are not fully expanded (see above);
4572 dnl eg gamedir=${prefix}/var/games/emacs.
4573 dnl Secondly, the GNU Coding standards require that one should be able
4574 dnl to run `make prefix=/some/where/else' and override the values set
4575 dnl by configure. This also explains the `move-if-change' test and
4576 dnl the use of force in the `epaths-force' rule in Makefile.in.
4577 AC_CONFIG_COMMANDS([epaths], [
4578 echo creating src/epaths.h
4579 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
4580 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS"])
4582 AC_CONFIG_COMMANDS([gdbinit], [
4583 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
4584 echo creating src/.gdbinit
4585 echo "source $srcdir/src/.gdbinit" > src/.gdbinit