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([gnutls],[don't use -lgnutls for SSL/TLS support])
189 ## For the times when you want to build Emacs but don't have
190 ## a suitable makeinfo, and can live without the manuals.
191 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
192 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
194 ## Makefile.in needs the cache file name.
197 ## This is an option because I do not know if all info/man support
198 ## compressed files, nor how to test if they do so.
199 OPTION_DEFAULT_ON([compress-info],[don't compress the installed Info pages])
200 if test $with_compress_info = yes; then
207 AC_ARG_WITH([pkg-config-prog],dnl
208 [AS_HELP_STRING([--with-pkg-config-prog=FILENAME],
209 [file name of pkg-config for finding GTK and librsvg])])
210 if test "X${with_pkg_config_prog}" != X; then
211 if test "${with_pkg_config_prog}" != yes; then
212 PKG_CONFIG="${with_pkg_config_prog}"
217 AC_ARG_WITH([crt-dir],dnl
218 [AS_HELP_STRING([--with-crt-dir=DIR],[directory containing crtn.o etc.
219 The default is /usr/lib, or /usr/lib64 on some platforms.])])
220 CRT_DIR="${with_crt_dir}"
222 AC_ARG_WITH(gameuser,dnl
223 [AS_HELP_STRING([--with-gameuser=USER],[user for shared game score files])])
224 test "X${with_gameuser}" != X && test "${with_gameuser}" != yes \
225 && gameuser="${with_gameuser}"
226 test "X$gameuser" = X && gameuser=games
228 AC_ARG_WITH([gnustep-conf],dnl
229 [AS_HELP_STRING([--with-gnustep-conf=FILENAME],
230 [name of GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
231 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
232 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
233 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
234 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
236 AC_ARG_ENABLE(ns-self-contained,
237 [AS_HELP_STRING([--disable-ns-self-contained],
238 [disable self contained build under NeXTstep])],
239 EN_NS_SELF_CONTAINED=$enableval,
240 EN_NS_SELF_CONTAINED=yes)
242 AC_ARG_ENABLE(locallisppath,
243 [AS_HELP_STRING([--enable-locallisppath=PATH],
244 [directories Emacs should search for lisp files specific
246 if test "${enableval}" = "no"; then
248 elif test "${enableval}" != "yes"; then
249 locallisppath=${enableval}
252 AC_ARG_ENABLE(checking,
253 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
254 [enable expensive run-time checks. With LIST,
255 enable only specific categories of checks.
256 Categories are: all,yes,no.
257 Flags are: stringbytes, stringoverrun, stringfreelist,
258 xmallocoverrun, conslist, glyphs])],
259 [ac_checking_flags="${enableval}"],[])
260 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
261 for check in $ac_checking_flags
264 # these set all the flags to specific states
265 yes) ac_enable_checking=1 ;;
266 no) ac_enable_checking= ;
267 ac_gc_check_stringbytes= ;
268 ac_gc_check_string_overrun= ;
269 ac_gc_check_string_free_list= ;
270 ac_xmalloc_overrun= ;
271 ac_gc_check_cons_list= ;
273 all) ac_enable_checking=1 ;
274 ac_gc_check_stringbytes=1 ;
275 ac_gc_check_string_overrun=1 ;
276 ac_gc_check_string_free_list=1 ;
277 ac_xmalloc_overrun=1 ;
278 ac_gc_check_cons_list=1 ;
280 # these enable particular checks
281 stringbytes) ac_gc_check_stringbytes=1 ;;
282 stringoverrun) ac_gc_check_string_overrun=1 ;;
283 stringfreelist) ac_gc_check_string_free_list=1 ;;
284 xmallocoverrun) ac_xmalloc_overrun=1 ;;
285 conslist) ac_gc_check_cons_list=1 ;;
286 glyphs) ac_glyphs_debug=1 ;;
287 *) AC_MSG_ERROR(unknown check category $check) ;;
292 if test x$ac_enable_checking != x ; then
293 AC_DEFINE(ENABLE_CHECKING, 1,
294 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
296 if test x$ac_gc_check_stringbytes != x ; then
297 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
298 [Define this temporarily to hunt a bug. If defined, the size of
299 strings is redundantly recorded in sdata structures so that it can
300 be compared to the sizes recorded in Lisp strings.])
302 if test x$ac_gc_check_string_overrun != x ; then
303 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
304 [Define this to check for short string overrun.])
306 if test x$ac_gc_check_string_free_list != x ; then
307 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
308 [Define this to check the string free list.])
310 if test x$ac_xmalloc_overrun != x ; then
311 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
312 [Define this to check for malloc buffer overrun.])
314 if test x$ac_gc_check_cons_list != x ; then
315 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
316 [Define this to check for errors in cons list.])
318 if test x$ac_glyphs_debug != x ; then
319 AC_DEFINE(GLYPH_DEBUG, 1,
320 [Define this to enable glyphs debugging code.])
323 AC_ARG_ENABLE(check-lisp-object-type,
324 [AS_HELP_STRING([--enable-check-lisp-object-type],
325 [enable compile time checks for the Lisp_Object data type.
326 This is useful for development for catching certain types of bugs.])],
327 if test "${enableval}" != "no"; then
328 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
329 [Define this to enable compile time checks for the Lisp_Object data type.])
333 dnl The name of this option is unfortunate. It predates, and has no
334 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
335 dnl Actually, it stops it working.
336 dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
337 AC_ARG_ENABLE(profiling,
338 [AS_HELP_STRING([--enable-profiling],
339 [build emacs with low-level, gprof profiling support.
340 Mainly useful for debugging Emacs itself. May not work on
341 all platforms. Stops profiler.el working.])],
342 [ac_enable_profiling="${enableval}"],[])
343 if test x$ac_enable_profiling != x ; then
344 PROFILING_CFLAGS="-DPROFILING=1 -pg"
348 AC_SUBST(PROFILING_CFLAGS)
350 AC_ARG_ENABLE(autodepend,
351 [AS_HELP_STRING([--enable-autodepend],
352 [automatically generate dependencies to .h-files.
353 Requires GNU Make and Gcc. Enabled if GNU Make and Gcc is
355 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
357 #### Make srcdir absolute, if it isn't already. It's important to
358 #### avoid running the file name through pwd unnecessarily, since pwd can
359 #### give you automounter prefixes, which can go away. We do all this
360 #### so Emacs can find its files when run uninstalled.
361 ## Make sure CDPATH doesn't affect cd (in case PWD is relative).
366 ## We may be able to use the $PWD environment variable to make this
367 ## absolute. But sometimes PWD is inaccurate.
368 ## Note: we used to use $PWD at the end instead of `pwd`,
369 ## but that tested only for a well-formed and valid PWD,
370 ## it did not object when PWD was well-formed and valid but just wrong.
371 if test ".$PWD" != "." && test ".`(cd "$PWD" ; sh -c pwd)`" = ".`pwd`" ;
375 srcdir=`(cd "$srcdir"; pwd)`
378 * ) srcdir=`(cd "$srcdir"; pwd)` ;;
381 ### Canonicalize the configuration name.
385 configuration=${host_alias-${build_alias-$host}}
387 dnl This used to use changequote, but, apart from `changequote is evil'
388 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
389 dnl the great gob of text. Thus it's not processed for possible expansion.
390 dnl Just make sure the brackets remain balanced.
392 dnl Since Emacs can't find matching pairs of quotes, boundaries are
393 dnl indicated by comments.
397 ### If you add support for a new configuration, add code to this
398 ### switch statement to recognize your configuration name and select
399 ### the appropriate operating system file.
401 ### You would hope that you could choose an s/*.h
402 ### file based on the operating system portion. However, it turns out
403 ### that each s/*.h file is pretty manufacturer-specific.
404 ### So we basically have to have a special case for each
405 ### configuration name.
407 ### As far as handling version numbers on operating systems is
408 ### concerned, make sure things will fail in a fixable way. If
409 ### /etc/MACHINES doesn't say anything about version numbers, be
410 ### prepared to handle anything reasonably. If version numbers
411 ### matter, be sure /etc/MACHINES says something about it.
414 case "${canonical}" in
416 ## GNU/Linux and similar ports
426 ## FreeBSD kernel + glibc based userland
441 ## Apple Darwin / Mac OS X
443 case "${canonical}" in
450 ## Use fink packages if available.
451 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
452 ## if test -d /sw/include && test -d /sw/lib; then
453 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
454 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
458 ## HP 9000 series 700 and 800, running HP/UX
462 hppa*-hp-hpux1[1-9]* )
464 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
468 rs6000-ibm-aix4.[23]* )
471 powerpc-ibm-aix4.[23]* )
474 rs6000-ibm-aix[56]* )
477 powerpc-ibm-aix[56]* )
481 ## Silicon Graphics machines
485 # Without defining _LANGUAGE_C, things get masked out in the headers
486 # so that, for instance, grepping for `free' in stdlib.h fails and
487 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
488 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
493 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
494 | x86_64-*-solaris2* | x86_64-*-sunos5*)
495 case "${canonical}" in
497 amd64-*-*|x86_64-*-*) ;;
501 case "${canonical}" in
502 *-sunos5.6* | *-solaris2.6* )
506 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
508 emacs_check_sunpro_c=yes
510 *-sunos5* | *-solaris* )
512 emacs_check_sunpro_c=yes
515 ## Watch out for a compiler that we know will not work.
516 case "${canonical}" in
517 *-solaris* | *-sunos5* )
518 if [ "x$CC" = x/usr/ucb/cc ]; then
519 ## /usr/ucb/cc doesn't work;
520 ## we should find some other compiler that does work.
528 ## Intel 386 machines where we don't care about the manufacturer.
530 case "${canonical}" in
531 *-cygwin ) opsys=cygwin ;;
532 *-darwin* ) opsys=darwin ;;
533 *-sysv4.2uw* ) opsys=unixware ;;
534 *-sysv5uw* ) opsys=unixware ;;
535 *-sysv5OpenUNIX* ) opsys=unixware ;;
536 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
545 ### If the code above didn't choose an operating system, just choose
546 ### an operating system based on the configuration name. You really
547 ### only want to use this when you have no idea what the right
548 ### operating system is; if you know what operating systems a machine
549 ### runs, it's cleaner to make it explicit in the case statement
551 if test x"${opsys}" = x; then
552 case "${canonical}" in
553 *-gnu* ) opsys=gnu ;;
563 if test $unported = yes; then
564 AC_MSG_ERROR([Emacs hasn't been ported to `${canonical}' systems.
565 Check `etc/MACHINES' for recognized configuration names.])
569 #### Choose a compiler.
571 dnl Sets GCC=yes if using gcc.
575 if test x$GCC = xyes; then
576 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
578 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
581 # Avoid gnulib's tests for O_NOATIME and O_NOFOLLOW, as we don't use them.
582 AC_DEFUN([gl_FCNTL_O_FLAGS])
583 # Avoid gnulib's threadlib module, as we do threads our own way.
584 AC_DEFUN([gl_THREADLIB])
586 # Initialize gnulib right after choosing the compiler.
587 dnl Amongst other things, this sets AR and ARFLAGS.
590 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
591 # if -g3 works and the user does not specify CFLAGS.
592 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
593 if test "$ac_test_CFLAGS" != set; then
596 emacs_g3_CFLAGS='-g3';;
598 emacs_g3_CFLAGS='-g3 -O2';;
602 if test -n "$emacs_g3_CFLAGS"; then
603 emacs_save_CFLAGS=$CFLAGS
604 CFLAGS=$emacs_g3_CFLAGS
605 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
606 [emacs_cv_prog_cc_g3],
607 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
608 [emacs_cv_prog_cc_g3=yes],
609 [emacs_cv_prog_cc_g3=no])])
610 if test $emacs_cv_prog_cc_g3 = yes; then
611 CFLAGS=$emacs_g3_CFLAGS
613 CFLAGS=$emacs_save_CFLAGS
618 AC_ARG_ENABLE([gcc-warnings],
619 [AS_HELP_STRING([--enable-gcc-warnings],
620 [turn on lots of GCC warnings. This is intended for
621 developers, and may generate false alarms when used
622 with older or non-GNU development tools.])],
625 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
627 gl_gcc_warnings=$enableval],
631 AC_ARG_ENABLE(link-time-optimization,
632 [AS_HELP_STRING([--enable-link-time-optimization],
633 [build emacs with link-time optimization.
634 This is supported only for GCC since 4.5.0.])],
635 if test "${enableval}" != "no"; then
636 AC_MSG_CHECKING([whether link-time optimization is supported])
638 if test x$GCC = xyes; then
639 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
640 if test x$CPUS != x; then
646 CFLAGS="$CFLAGS $LTO"
647 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
648 [ac_lto_supported=yes], [ac_lto_supported=no])
651 AC_MSG_RESULT([$ac_lto_supported])
652 if test "$ac_lto_supported" = "yes"; then
653 CFLAGS="$CFLAGS $LTO"
657 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
658 # ------------------------------------------------
659 # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
660 # Otherwise, run RUN-IF-NOT-FOUND.
661 AC_DEFUN([gl_GCC_VERSION_IFELSE],
665 #if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
668 # error "your version of gcc is older than $1.$2"
675 # When compiling with GCC, prefer -isystem to -I when including system
676 # include files, to avoid generating useless diagnostics for the files.
677 if test "$gl_gcc_warnings" != yes; then
682 # This, $nw, is the list of warnings we disable.
685 case $with_x_toolkit in
686 lucid | athena | motif)
687 # Old toolkits mishandle 'const'.
688 nw="$nw -Wwrite-strings"
691 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
694 AC_SUBST([WERROR_CFLAGS])
696 nw="$nw -Waggregate-return" # anachronistic
697 nw="$nw -Wlong-long" # C90 is anachronistic
698 nw="$nw -Wc++-compat" # We don't care about C++ compilers
699 nw="$nw -Wundef" # Warns on '#if GNULIB_FOO' etc in gnulib
700 nw="$nw -Wtraditional" # Warns on #elif which we use often
701 nw="$nw -Wcast-qual" # Too many warnings for now
702 nw="$nw -Wconversion" # Too many warnings for now
703 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
704 nw="$nw -Wsign-conversion" # Too many warnings for now
705 nw="$nw -Woverlength-strings" # Not a problem these days
706 nw="$nw -Wtraditional-conversion" # Too many warnings for now
707 nw="$nw -Wunreachable-code" # so buggy that it's now silently ignored
708 nw="$nw -Wpadded" # Our structs are not padded
709 nw="$nw -Wredundant-decls" # we regularly (re)declare functions
710 nw="$nw -Wlogical-op" # any use of fwrite provokes this
711 nw="$nw -Wformat-nonliteral" # we do this a lot
712 nw="$nw -Wvla" # warnings in gettext.h
713 nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
714 nw="$nw -Wswitch-enum" # Too many warnings for now
715 nw="$nw -Wswitch-default" # Too many warnings for now
716 nw="$nw -Wfloat-equal" # warns about high-quality code
717 nw="$nw -Winline" # OK to ignore 'inline'
718 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
719 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
720 # signed overflow has undefined behavior
721 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
722 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
724 # Emacs doesn't care about shadowing; see
725 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
728 # The following line should be removable at some point.
729 nw="$nw -Wsuggest-attribute=pure"
731 AC_MSG_CHECKING([whether to use -Wstack-protector])
734 [[#if (1 <= __LONG_MAX__ >> 31 >> 31 \
735 && 4 < __GNUC__ + (7 < __GNUC_MINOR__ + (2 <= __GNUC_PATCHLEVEL__)))
738 #error "Not GCC, or GCC before 4.7.2, or 'long int' has < 64 bits."
741 [AC_MSG_RESULT(yes)],
743 nw="$nw -Wstack-protector"])
745 gl_MANYWARN_ALL_GCC([ws])
746 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
750 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
751 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
752 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
753 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
754 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
755 gl_WARN_ADD([-Wno-format-nonliteral])
757 # In spite of excluding -Wlogical-op above, it is enabled, as of
758 # gcc 4.5.0 20090517.
759 gl_WARN_ADD([-Wno-logical-op])
761 gl_WARN_ADD([-fdiagnostics-show-option])
762 gl_WARN_ADD([-funit-at-a-time])
764 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
765 AH_VERBATIM([FORTIFY_SOURCE],
766 [/* Enable compile-time and run-time bounds-checking, and some warnings,
767 without upsetting glibc 2.15+. */
768 #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
769 # define _FORTIFY_SOURCE 2
772 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
774 # We use a slightly smaller set of warning options for lib/.
775 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
777 nw="$nw -Wunused-macros"
779 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
780 AC_SUBST([GNULIB_WARN_CFLAGS])
785 dnl Some other nice autoconf tests.
786 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
789 dnl if test "x$RANLIB" = x; then
794 AC_PATH_PROG(INSTALL_INFO, install-info, :,
795 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
796 dnl Don't use GZIP, which is used by gzip for additional parameters.
797 AC_PATH_PROG(GZIP_PROG, gzip)
799 if test $opsys = gnu-linux; then
800 AC_PATH_PROG(PAXCTL, paxctl,,
801 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
802 if test "X$PAXCTL" != X; then
803 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
804 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
805 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
806 else AC_MSG_RESULT(no); PAXCTL=""; fi])
810 ## Need makeinfo >= 4.7 (?) to build the manuals.
811 AC_PATH_PROG(MAKEINFO, makeinfo, no)
812 dnl By this stage, configure has already checked for egrep and set EGREP,
813 dnl or exited with an error if no egrep was found.
814 if test "$MAKEINFO" != "no"; then
816 $MAKEINFO --version 2> /dev/null |
817 $EGREP 'texinfo[[^0-9]]*([[1-4]][[0-9]]+|[[5-9]]|4\.[[7-9]]|4\.[[1-6]][[0-9]]+)'
823 ## Makeinfo is unusual. For a released Emacs, the manuals are
824 ## pre-built, and not deleted by the normal clean rules. makeinfo is
825 ## therefore in the category of "special tools" not normally required, which
826 ## configure does not have to check for (eg autoconf itself).
827 ## In a Bazaar checkout on the other hand, the manuals are not included.
828 ## So makeinfo is a requirement to build from Bazaar, and configure
829 ## should test for it as it does for any other build requirement.
830 ## We use the presence of $srcdir/info/emacs to distinguish a release,
831 ## with pre-built manuals, from a Bazaar checkout.
834 if test "$MAKEINFO" = "no"; then
836 if test "x${with_makeinfo}" = "xno"; then
838 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
839 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
840 source tree does not seem to have pre-built manuals in the `info' directory.
841 Either install a suitable version of makeinfo, or re-run configure
842 with the `--without-makeinfo' option to build without the manuals.] )
845 AC_SUBST(HAVE_MAKEINFO)
847 dnl Just so that there is only a single place we need to edit.
853 dnl Add our options to ac_link now, after it is set up.
855 if test x$GCC = xyes; then
856 test "x$GCC_LINK_TEST_OPTIONS" != x && \
857 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
859 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
860 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
863 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
864 dnl If we can link with the flag, it shouldn't do any harm anyhow.
865 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
866 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
867 dnl if not built to support GNU ld.
869 late_LDFLAGS=$LDFLAGS
870 if test x$GCC = xyes; then
871 LDFLAGS="$LDFLAGS -Wl,-znocombreloc"
873 LDFLAGS="$LDFLAGS -znocombreloc"
876 AC_MSG_CHECKING([for -znocombreloc])
877 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
878 [AC_MSG_RESULT(yes)],
879 LDFLAGS=$late_LDFLAGS
883 dnl The function dump-emacs will not be defined and temacs will do
884 dnl (load "loadup") automatically unless told otherwise.
885 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
887 your-opsys-here) CANNOT_DUMP=yes ;;
890 test "$CANNOT_DUMP" = "yes" && \
891 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
893 AC_SUBST(CANNOT_DUMP)
898 # MSDOS uses unexcoff.o
899 # MSWindows uses unexw32.o
907 UNEXEC_OBJ=unexmacosx.o
910 UNEXEC_OBJ=unexhp9k800.o
913 # Use the Solaris dldump() function, called from unexsol.c, to dump
914 # emacs, instead of the generic ELF dump code found in unexelf.c.
915 # The resulting binary has a complete symbol table, and is better
916 # for debugging and other observability tools (debuggers, pstack, etc).
918 # If you encounter a problem using dldump(), please consider sending
919 # a message to the OpenSolaris tools-linking mailing list:
920 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
922 # It is likely that dldump() works with older Solaris too, but this has
923 # not been tested, so for now this change is for Solaris 10 or newer.
931 ## Let `ld' find image libs and similar things in /usr/local/lib.
932 ## The system compiler, GCC, has apparently been modified to not
933 ## look there, contrary to what a stock GCC would do.
934 ### It's not our place to do this. See bug#10313#17.
935 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
940 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
941 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
945 ### It's not our place to do this. See bug#10313#17.
946 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
951 ## Han Boetes <han@mijncomputer.nl> says this is necessary,
952 ## otherwise Emacs dumps core on elf systems.
953 LD_SWITCH_SYSTEM="-Z"
956 AC_SUBST(LD_SWITCH_SYSTEM)
958 ac_link="$ac_link $LD_SWITCH_SYSTEM"
960 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
961 ## which has not been defined yet. When this was handled with cpp,
962 ## it was expanded to null when configure sourced the s/*.h file.
963 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
964 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
965 ## (or somesuch), but because it is supposed to go at the _front_
966 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
967 ## Compare with the gnu-linux case below, which added to the end
968 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
969 ## LD_SWITCH_SYSTEM_TEMACS.
972 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
979 AC_CHECK_DECL([__ELF__])
980 if test "$ac_cv_have_decl___ELF__" = "yes"; then
981 ## With ELF, make sure that all common symbols get allocated to in the
982 ## data section. Otherwise, the dump of temacs may miss variables in
983 ## the shared library that have been initialized. For example, with
984 ## GNU libc, __malloc_initialized would normally be resolved to the
985 ## shared library's .bss section, which is fatal.
986 if test "x$GCC" = "xyes"; then
987 C_SWITCH_MACHINE="-fno-common"
989 AC_MSG_ERROR([What gives? Fix me if DEC Unix supports ELF now.])
992 UNEXEC_OBJ=unexalpha.o
996 AC_SUBST(C_SWITCH_MACHINE)
1001 ## Some programs in src produce warnings saying certain subprograms
1002 ## are too complex and need a MAXMEM value greater than 2000 for
1003 ## additional optimization. --nils@exp-math.uni-essen.de
1004 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1005 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1006 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1007 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1008 AC_SUBST(C_SWITCH_SYSTEM)
1013 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1014 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1016 freebsd) LIBS_SYSTEM="-lutil" ;;
1018 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1020 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1022 ## Motif needs -lgen.
1023 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1025 AC_SUBST(LIBS_SYSTEM)
1028 ### Make sure subsequent tests use flags consistent with the build flags.
1030 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1031 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1033 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1036 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C89 or better.
1037 AC_DEFUN([AC_TYPE_SIZE_T])
1038 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1039 AC_DEFUN([AC_TYPE_UID_T])
1045 dnl Current possibilities handled by sed (aix4-2 -> aix,
1046 dnl gnu-linux -> gnu/linux, etc.):
1047 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1048 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1049 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1051 dnl NB do not use CRT_DIR unquoted here, since it might not be set yet.
1055 START_FILES='pre-crt0.o'
1058 ## Adding -lm confuses the dynamic linker, so omit it.
1060 START_FILES='pre-crt0.o'
1063 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtn.o'
1064 START_FILES='pre-crt0.o $(CRT_DIR)/crt1.o $(CRT_DIR)/crti.o'
1065 SYSTEM_TYPE=berkeley-unix
1067 gnu-linux | gnu-kfreebsd )
1068 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtn.o'
1069 START_FILES='pre-crt0.o $(CRT_DIR)/crt1.o $(CRT_DIR)/crti.o'
1071 hpux10-20 | hpux11 )
1073 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o'
1075 dnl NB this may be adjusted below.
1077 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o'
1078 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o $(CRT_DIR)/crtbegin.o'
1079 SYSTEM_TYPE=berkeley-unix
1083 SYSTEM_TYPE=usg-unix-v
1089 AC_SUBST(START_FILES)
1090 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1091 [The type of system you are compiling for; sets `system-type'.])
1093 dnl Not all platforms use crtn.o files. Check if the current one does.
1096 for file in x $LIB_STANDARD $START_FILES; do
1098 *CRT_DIR*) crt_files="$crt_files `echo $file | sed -e 's|.*/||'`" ;;
1102 if test "x$crt_files" != x; then
1104 ## If user specified a crt-dir, use that unconditionally.
1107 if test "X$CRT_DIR" = "X"; then
1109 CRT_DIR=/usr/lib # default
1111 case "$canonical" in
1112 x86_64-*-linux-gnu* | s390x-*-linux-gnu*)
1113 ## On x86-64 and s390x GNU/Linux distributions, the standard library
1114 ## can be in a variety of places. We only try /usr/lib64 and /usr/lib.
1115 ## For anything else (eg /usr/lib32), it is up the user to specify
1116 ## the location (bug#5655).
1117 ## Test for crtn.o, not just the directory, because sometimes the
1118 ## directory exists but does not have the relevant files (bug#1287).
1119 ## FIXME better to test for binary compatibility somehow.
1120 test -e /usr/lib64/crtn.o && CRT_DIR=/usr/lib64
1123 powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*) CRT_DIR=/usr/lib64 ;;
1127 hpux10-20) CRT_DIR=/lib ;;
1130 test "x${GCC}" = xyes && crt_gcc=yes
1136 for file in $crt_files; do
1138 ## If we're using gcc, try to determine it automatically by asking
1139 ## gcc. [If this doesn't work, CRT_DIR will remain at the
1140 ## system-dependent default from above.]
1141 if test $crt_gcc = yes && test ! -e $CRT_DIR/$file; then
1143 crt_file=`$CC --print-file-name=$file 2>/dev/null`
1146 CRT_DIR=`AS_DIRNAME(["$crt_file"])`
1151 dnl We expect all the files to be in a single directory, so after the
1152 dnl first there is no point asking gcc.
1155 test -e $CRT_DIR/$file || crt_missing="$crt_missing $file"
1158 test "x$crt_missing" = x || \
1159 AC_MSG_ERROR([Required file(s) not found:$crt_missing
1160 Try using the --with-crt-dir option.])
1162 fi # crt_files != ""
1168 if test -f $CRT_DIR/crti.o; then
1170 test -f $CRT_DIR/crtn.o || \
1171 AC_MSG_ERROR([Required file not found: crtn.o])
1173 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o $(CRT_DIR)/crtn.o'
1174 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o $(CRT_DIR)/crti.o $(CRT_DIR)/crtbegin.o'
1180 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1181 pre_PKG_CONFIG_LIBS=$LIBS
1183 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
1185 dnl This function definition taken from Gnome 2.0
1186 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
1187 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
1188 dnl also defines GSTUFF_PKG_ERRORS on error
1189 AC_DEFUN([PKG_CHECK_MODULES], [
1192 if test "$PKG_CONFIG" = "no" ; then
1193 ifelse([$4], , [AC_MSG_ERROR([
1194 *** 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.])], [$4])
1196 PKG_CONFIG_MIN_VERSION=0.9.0
1197 if "$PKG_CONFIG" --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
1198 AC_MSG_CHECKING(for $2)
1200 if "$PKG_CONFIG" --exists "$2" 2>&AS_MESSAGE_LOG_FD &&
1201 $1_CFLAGS=`"$PKG_CONFIG" --cflags "$2" 2>&AS_MESSAGE_LOG_FD` &&
1202 $1_LIBS=`"$PKG_CONFIG" --libs "$2" 2>&AS_MESSAGE_LOG_FD`; then
1209 $1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1210 $1_LIBS=`AS_ECHO(["$$1_LIBS"]) | sed -e 's,///*,/,g'`
1211 AC_MSG_RESULT([yes CFLAGS='$$1_CFLAGS' LIBS='$$1_LIBS'])
1217 ## If we have a custom action on failure, don't print errors, but
1218 ## do set a variable so people can do so. Do it in a subshell
1219 ## to capture any diagnostics in invoking pkg-config.
1220 $1_PKG_ERRORS=`("$PKG_CONFIG" --print-errors "$2") 2>&1`
1221 ifelse([$4], ,echo "$$1_PKG_ERRORS",)
1227 echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
1228 echo "*** See http://www.freedesktop.org/software/pkgconfig"
1232 if test $succeeded = yes; then
1233 ifelse([$3], , :, [$3])
1235 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])
1240 if test "${with_sound}" != "no"; then
1241 # Sound support for GNU/Linux and the free BSDs.
1242 AC_CHECK_HEADERS(machine/soundcard.h sys/soundcard.h soundcard.h,
1243 have_sound_header=yes)
1244 # Emulation library used on NetBSD.
1245 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1249 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1250 PKG_CHECK_MODULES(ALSA, $ALSA_MODULES, HAVE_ALSA=yes, HAVE_ALSA=no)
1251 if test $HAVE_ALSA = yes; then
1252 SAVE_CFLAGS="$CFLAGS"
1254 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1255 LIBS="$ALSA_LIBS $LIBS"
1256 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1257 emacs_alsa_normal=yes,
1258 emacs_alsa_normal=no)
1259 if test "$emacs_alsa_normal" != yes; then
1260 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1261 [[snd_lib_error_set_handler (0);]])],
1262 emacs_alsa_subdir=yes,
1263 emacs_alsa_subdir=no)
1264 if test "$emacs_alsa_subdir" != yes; then
1265 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1267 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1270 CFLAGS="$SAVE_CFLAGS"
1272 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1273 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1274 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1277 dnl Define HAVE_SOUND if we have sound support. We know it works and
1278 dnl compiles only on the specified platforms. For others, it
1279 dnl probably doesn't make sense to try.
1280 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1282 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1283 gnu-linux|freebsd|netbsd)
1284 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1289 AC_SUBST(CFLAGS_SOUND)
1292 dnl checks for header files
1293 AC_CHECK_HEADERS_ONCE(
1294 linux/version.h sys/systeminfo.h
1296 sys/vlimit.h sys/resource.h
1297 sys/utsname.h pwd.h utmp.h util.h)
1299 AC_MSG_CHECKING(if personality LINUX32 can be set)
1300 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1301 emacs_cv_personality_linux32=yes,
1302 emacs_cv_personality_linux32=no)
1303 AC_MSG_RESULT($emacs_cv_personality_linux32)
1305 if test $emacs_cv_personality_linux32 = yes; then
1306 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1307 [Define to 1 if personality LINUX32 can be set.])
1310 dnl On Solaris 8 there's a compilation warning for term.h because
1311 dnl it doesn't define `bool'.
1312 AC_CHECK_HEADERS(term.h, , , -)
1314 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1316 if test $ac_cv_have_decl_sys_siglist != yes; then
1317 # For Tru64, at least:
1318 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1320 if test $ac_cv_have_decl___sys_siglist = yes; then
1321 AC_DEFINE(sys_siglist, __sys_siglist,
1322 [Define to any substitute for sys_siglist.])
1327 dnl Check for speed_t typedef.
1328 AC_CACHE_CHECK(for speed_t, emacs_cv_speed_t,
1329 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <termios.h>]], [[speed_t x = 1;]])],
1330 emacs_cv_speed_t=yes, emacs_cv_speed_t=no)])
1331 if test $emacs_cv_speed_t = yes; then
1332 AC_DEFINE(HAVE_SPEED_T, 1,
1333 [Define to 1 if `speed_t' is declared by <termios.h>.])
1336 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1337 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1338 #if HAVE_SYS_SOCKET_H
1339 #include <sys/socket.h>
1341 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1342 #if HAVE_SYS_SOCKET_H
1343 #include <sys/socket.h>
1345 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1346 #if HAVE_SYS_SOCKET_H
1347 #include <sys/socket.h>
1350 dnl checks for structure members
1351 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1352 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1353 struct ifreq.ifr_addr,
1354 struct ifreq.ifr_addr.sa_len], , ,
1355 [AC_INCLUDES_DEFAULT
1356 #if HAVE_SYS_SOCKET_H
1357 #include <sys/socket.h>
1363 dnl Check for endianness.
1364 dnl AC_C_BIGENDIAN is done by gnulib.
1366 dnl check for Make feature
1367 dnl AC_PROG_MAKE_SET is done by Automake.
1372 dnl check for GNU Make if we have GCC and autodepend is on.
1373 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1374 AC_MSG_CHECKING([whether we are using GNU Make])
1376 testval=`${MAKE-make} --version 2>/dev/null | grep 'GNU Make'`
1377 if test "x$testval" != x; then
1380 ac_enable_autodepend=no
1382 AC_MSG_RESULT([$HAVE_GNU_MAKE])
1383 if test $HAVE_GNU_MAKE = yes; then
1384 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1385 SAVE_CFLAGS="$CFLAGS"
1386 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1387 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1388 CFLAGS="$SAVE_CFLAGS"
1389 test -f deps.d || ac_enable_autodepend=no
1391 AC_MSG_RESULT([$ac_enable_autodepend])
1393 if test $ac_enable_autodepend = yes; then
1394 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1395 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1396 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1397 deps_frag=autodeps.mk
1400 deps_frag=$srcdir/src/$deps_frag
1403 AC_SUBST_FILE(deps_frag)
1406 lisp_frag=$srcdir/src/lisp.mk
1407 AC_SUBST_FILE(lisp_frag)
1410 dnl checks for operating system services
1411 AC_SYS_LONG_FILE_NAMES
1413 #### Choose a window system.
1415 ## We leave window_system equal to none if
1416 ## we end up building without one. Any new window system should
1417 ## set window_system to an appropriate value and add objects to
1418 ## window-system-specific substs.
1422 if test "$no_x" != yes; then
1426 LD_SWITCH_X_SITE_RPATH=
1427 if test "${x_libraries}" != NONE; then
1428 if test -n "${x_libraries}"; then
1429 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1430 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1432 x_default_search_path=""
1433 x_search_path=${x_libraries}
1434 if test -z "${x_search_path}"; then
1435 x_search_path=/usr/lib
1437 for x_library in `echo ${x_search_path}: | \
1438 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1440 ${x_library}/X11/%L/%T/%N%C%S:\
1441 ${x_library}/X11/%l/%T/%N%C%S:\
1442 ${x_library}/X11/%T/%N%C%S:\
1443 ${x_library}/X11/%L/%T/%N%S:\
1444 ${x_library}/X11/%l/%T/%N%S:\
1445 ${x_library}/X11/%T/%N%S"
1446 if test x"${x_default_search_path}" = x; then
1447 x_default_search_path=${x_search_path}
1449 x_default_search_path="${x_search_path}:${x_default_search_path}"
1453 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1455 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1456 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1459 if test x"${x_includes}" = x; then
1460 bitmapdir=/usr/include/X11/bitmaps
1462 # accumulate include directories that have X11 bitmap subdirectories
1464 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1465 if test -d "${bmd}/X11/bitmaps"; then
1466 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1468 if test -d "${bmd}/bitmaps"; then
1469 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1472 if test ${bmd_acc} != "dummyval"; then
1473 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1480 tmp_CPPFLAGS="$CPPFLAGS"
1481 tmp_CFLAGS="$CFLAGS"
1482 CPPFLAGS="$CPPFLAGS -x objective-c"
1483 CFLAGS="$CFLAGS -x objective-c"
1484 TEMACS_LDFLAGS2="\${LDFLAGS}"
1486 if test "${with_ns}" != no; then
1487 if test "${opsys}" = darwin; then
1489 ns_appdir=`pwd`/nextstep/Emacs.app
1490 ns_appbindir=${ns_appdir}/Contents/MacOS
1491 ns_appresdir=${ns_appdir}/Contents/Resources
1492 ns_appsrc=Cocoa/Emacs.base
1493 elif test -f $GNUSTEP_CONFIG_FILE; then
1495 ns_appdir=`pwd`/nextstep/Emacs.app
1496 ns_appbindir=${ns_appdir}
1497 ns_appresdir=${ns_appdir}/Resources
1498 ns_appsrc=GNUstep/Emacs.base
1499 dnl FIXME sourcing this several times in subshells seems inefficient.
1500 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1501 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1502 dnl I seemed to need these as well with GNUstep-startup 0.25.
1503 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1504 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1505 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1506 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1507 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1508 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1509 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1510 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1511 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1515 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1516 dnl If they had chosen to either define it or not, we could have
1517 dnl just used AC_CHECK_DECL here.
1518 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1519 emacs_cv_objc_exceptions,
1520 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1521 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1525 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1526 if test $emacs_cv_objc_exceptions = yes; then
1527 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1528 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1529 [Define if GNUstep uses ObjC exceptions.])
1530 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1534 dnl This is only used while we test the NS headers, it gets reset below.
1535 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1537 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1538 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1539 files are missing or cannot be compiled.])])
1541 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1543 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1544 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
1547 #error "OSX 10.4 or newer required"
1551 ns_osx_have_104=yes,
1553 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1555 ns_have_nsinteger=yes,
1556 ns_have_nsinteger=no)
1557 if test $ns_osx_have_104 = no; then
1558 AC_MSG_ERROR([`OSX 10.4 or newer is required']);
1560 if test $ns_have_nsinteger = yes; then
1561 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1565 AC_SUBST(TEMACS_LDFLAGS2)
1567 INSTALL_ARCH_INDEP_EXTRA=install-etc
1568 ns_self_contained=no
1571 if test "${HAVE_NS}" = yes; then
1572 if test "$with_toolkit_scroll_bars" = "no"; then
1573 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1576 window_system=nextstep
1577 # set up packaging dirs
1578 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1579 ns_self_contained=yes
1580 prefix=${ns_appresdir}
1581 exec_prefix=${ns_appbindir}
1582 dnl This one isn't really used, only archlibdir is.
1583 libexecdir="\${ns_appbindir}/libexec"
1584 archlibdir="\${ns_appbindir}/libexec"
1585 docdir="\${ns_appresdir}/etc"
1586 etcdir="\${ns_appresdir}/etc"
1587 dnl FIXME maybe set datarootdir instead.
1588 dnl That would also get applications, icons, man.
1589 infodir="\${ns_appresdir}/info"
1590 mandir="\${ns_appresdir}/man"
1591 lispdir="\${ns_appresdir}/lisp"
1592 leimdir="\${ns_appresdir}/leim"
1593 INSTALL_ARCH_INDEP_EXTRA=
1595 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o"
1597 CFLAGS="$tmp_CFLAGS"
1598 CPPFLAGS="$tmp_CPPFLAGS"
1599 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1600 AC_SUBST(ns_self_contained)
1602 AC_SUBST(NS_OBJC_OBJ)
1603 AC_SUBST(LIB_STANDARD)
1608 if test "${with_w32}" != no; then
1609 if test "${opsys}" != "cygwin"; then
1610 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin.])
1612 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1613 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1614 cannot be found.])])
1615 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1616 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1617 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1618 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1619 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1624 if test "${HAVE_W32}" = "yes"; then
1629 ## $window_system is now set to the window system we will
1637 case "${window_system}" in
1642 case "${with_x_toolkit}" in
1643 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1644 motif ) USE_X_TOOLKIT=MOTIF ;;
1646 term_header=gtkutil.h
1647 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1648 dnl USE_X_TOOLKIT is set.
1649 USE_X_TOOLKIT=none ;;
1650 gtk2 ) with_gtk2=yes
1651 term_header=gtkutil.h
1652 USE_X_TOOLKIT=none ;;
1653 gtk3 ) with_gtk3=yes
1654 term_header=gtkutil.h
1655 USE_X_TOOLKIT=none ;;
1656 no ) USE_X_TOOLKIT=none ;;
1657 dnl If user did not say whether to use a toolkit, make this decision later:
1658 dnl use the toolkit if we have gtk, or X11R5 or newer.
1659 * ) USE_X_TOOLKIT=maybe ;;
1663 term_header=nsterm.h
1666 term_header=w32term.h
1670 if test -n "${term_header}"; then
1671 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
1672 [Define to the header for the built-in window system.])
1675 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1676 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1677 if test "$HAVE_XSERVER" = true ||
1678 test -n "$DISPLAY" ||
1679 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1680 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1681 were found. You should install the relevant development files for X
1682 and for the toolkit you want, such as Gtk+, Lesstif or Motif. Also make
1683 sure you have development files for image handling, i.e.
1684 tiff, gif, jpeg, png and xpm.
1685 If you are sure you want Emacs compiled without X window support, pass
1691 ### If we're using X11, we should use the X menu package.
1694 yes ) HAVE_MENUS=yes ;;
1697 # Does the opsystem file prohibit the use of the GNU malloc?
1698 # Assume not, until told otherwise.
1702 [whether malloc is Doug Lea style],
1703 [emacs_cv_var_doug_lea_malloc],
1706 [[#include <malloc.h>
1707 static void hook (void) {}]],
1708 [[malloc_set_state (malloc_get_state ());
1709 __after_morecore_hook = hook;
1710 __malloc_initialize_hook = hook;]])],
1711 [emacs_cv_var_doug_lea_malloc=yes],
1712 [emacs_cv_var_doug_lea_malloc=no])])
1713 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1716 dnl See comments in aix4-2.h about maybe using system malloc there.
1719 ## darwin ld insists on the use of malloc routines in the System framework.
1720 darwin|sol2-10) system_malloc=yes ;;
1723 if test "${system_malloc}" = "yes"; then
1724 AC_DEFINE(SYSTEM_MALLOC, 1, [Define to use system malloc.])
1727 (The GNU allocators don't work with this system configuration.)"
1731 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1732 VMLIMIT_OBJ=vm-limit.o
1734 AC_SUBST(GMALLOC_OBJ)
1735 AC_SUBST(VMLIMIT_OBJ)
1737 if test "$doug_lea_malloc" = "yes" ; then
1738 if test "$GNU_MALLOC" = yes ; then
1740 (Using Doug Lea's new malloc from the GNU C Library.)"
1742 AC_DEFINE(DOUG_LEA_MALLOC, 1,
1743 [Define to 1 if you are using the GNU C Library.])
1745 ## Use mmap directly for allocating larger buffers.
1746 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
1747 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
1748 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
1750 gnu*) REL_ALLOC=no ;;
1754 if test x"${REL_ALLOC}" = x; then
1755 REL_ALLOC=${GNU_MALLOC}
1758 use_mmap_for_buffers=no
1760 cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
1764 if test $use_mmap_for_buffers = yes; then
1765 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
1769 LIBS="$LIBS_SYSTEM $LIBS"
1771 dnl If found, this defines HAVE_LIBDNET, which m/pmax.h checks,
1772 dnl and also adds -ldnet to LIBS, which Autoconf uses for checks.
1773 AC_CHECK_LIB(dnet, dnet_ntoa)
1774 dnl This causes -lresolv to get used in subsequent tests,
1775 dnl which causes failures on some systems such as HPUX 9.
1776 dnl AC_CHECK_LIB(resolv, gethostbyname)
1778 dnl FIXME replace main with a function we actually want from this library.
1779 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
1781 dnl Check if pthreads is available.
1783 AC_CHECK_HEADERS_ONCE(pthread.h)
1784 if test "$ac_cv_header_pthread_h"; then
1785 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
1786 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
1787 dnl testing for pthread_self if Emacs uses gmalloc.c.
1788 if test "$GMALLOC_OBJ" = gmalloc.o; then
1789 emacs_pthread_function=pthread_atfork
1791 emacs_pthread_function=pthread_self
1793 AC_CHECK_LIB(pthread, $emacs_pthread_function, HAVE_PTHREAD=yes)
1795 if test "$HAVE_PTHREAD" = yes; then
1796 case "${canonical}" in
1798 *) LIB_PTHREAD="-lpthread"
1799 LIBS="$LIB_PTHREAD $LIBS" ;;
1801 AC_DEFINE(HAVE_PTHREAD, 1, [Define to 1 if you have pthread (-lpthread).])
1803 AC_SUBST([LIB_PTHREAD])
1805 AC_CHECK_LIB(pthreads, cma_open)
1807 ## Note: when using cpp in s/aix4.2.h, this definition depended on
1808 ## HAVE_LIBPTHREADS. That was not defined earlier in configure when
1809 ## the system file was sourced. Hence the value of LIBS_SYSTEM
1810 ## added to LIBS in configure would never contain the pthreads part,
1811 ## but the value used in Makefiles might. FIXME?
1813 ## -lpthreads seems to be necessary for Xlib in X11R6, and should
1814 ## be harmless on older versions of X where it happens to exist.
1815 test "$opsys" = "aix4-2" && \
1816 test $ac_cv_lib_pthreads_cma_open = yes && \
1817 LIBS_SYSTEM="$LIBS_SYSTEM -lpthreads"
1819 dnl Check for need for bigtoc support on IBM AIX
1823 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1825 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1826 *) gdb_cv_bigtoc=-bbigtoc ;;
1829 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1830 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
1835 # Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
1836 # used for the tests that follow. We set them back to REAL_CFLAGS and
1837 # REAL_CPPFLAGS later on.
1839 REAL_CFLAGS="$CFLAGS"
1840 REAL_CPPFLAGS="$CPPFLAGS"
1842 if test "${HAVE_X11}" = "yes"; then
1843 DEFS="$C_SWITCH_X_SITE $DEFS"
1844 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
1846 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
1847 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
1849 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
1850 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
1851 # but it's more convenient here to set LD_RUN_PATH since this
1852 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
1853 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
1854 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
1858 if test "${opsys}" = "gnu-linux"; then
1859 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
1860 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1861 [[XOpenDisplay ("foo");]])],
1862 [xgnu_linux_first_failure=no],
1863 [xgnu_linux_first_failure=yes])
1864 if test "${xgnu_linux_first_failure}" = "yes"; then
1865 OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
1866 OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
1867 OLD_CPPFLAGS="$CPPFLAGS"
1869 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
1870 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
1871 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
1872 LIBS="$LIBS -b i486-linuxaout"
1873 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1874 [[XOpenDisplay ("foo");]])],
1875 [xgnu_linux_second_failure=no],
1876 [xgnu_linux_second_failure=yes])
1877 if test "${xgnu_linux_second_failure}" = "yes"; then
1878 # If we get the same failure with -b, there is no use adding -b.
1879 # So take it out. This plays safe.
1880 LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
1881 C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
1882 CPPFLAGS="$OLD_CPPFLAGS"
1893 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
1894 # header files included from there.
1895 AC_MSG_CHECKING(for Xkb)
1896 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
1897 #include <X11/XKBlib.h>]],
1898 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
1899 emacs_xkb=yes, emacs_xkb=no)
1900 AC_MSG_RESULT($emacs_xkb)
1901 if test $emacs_xkb = yes; then
1902 AC_DEFINE(HAVE_XKBGETKEYBOARD, 1, [Define to 1 if you have the XkbGetKeyboard function.])
1905 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
1906 XScreenNumberOfScreen)
1909 if test "${window_system}" = "x11"; then
1910 AC_MSG_CHECKING(X11 version 6)
1911 AC_CACHE_VAL(emacs_cv_x11_version_6,
1912 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
1913 [[#if XlibSpecificationRelease < 6
1916 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
1917 if test $emacs_cv_x11_version_6 = yes; then
1918 AC_MSG_RESULT(6 or newer)
1919 AC_DEFINE(HAVE_X11R6, 1,
1920 [Define to 1 if you have the X11R6 or newer version of Xlib.])
1921 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
1922 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
1926 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
1927 [Define if you have usable X11R6-style XIM support.])
1931 AC_MSG_RESULT(before 6)
1936 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
1938 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes"; then
1939 if test "${with_rsvg}" != "no"; then
1940 RSVG_REQUIRED=2.11.0
1941 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
1943 PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, HAVE_RSVG=yes, :)
1944 AC_SUBST(RSVG_CFLAGS)
1947 if test $HAVE_RSVG = yes; then
1948 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
1949 CFLAGS="$CFLAGS $RSVG_CFLAGS"
1950 LIBS="$RSVG_LIBS $LIBS"
1956 if test "${HAVE_X11}" = "yes"; then
1957 if test "${with_imagemagick}" != "no"; then
1958 ## 6.2.8 is the earliest version known to work, but earlier versions
1959 ## might work - let us know if you find one.
1960 ## 6.0.7 does not work. See bug#7955.
1961 IMAGEMAGICK_MODULE="Wand >= 6.2.8"
1962 PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
1963 AC_SUBST(IMAGEMAGICK_CFLAGS)
1964 AC_SUBST(IMAGEMAGICK_LIBS)
1966 if test $HAVE_IMAGEMAGICK = yes; then
1967 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
1968 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
1969 LIBS="$IMAGEMAGICK_LIBS $LIBS"
1970 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
1980 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
1983 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1985 dnl Checks for libraries.
1986 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1987 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
1988 AC_MSG_ERROR($GTK_PKG_ERRORS)
1990 if test "$pkg_check_gtk" = "yes"; then
1991 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
1992 GTK_OBJ=emacsgtkfixed.o
1993 term_header=gtkutil.h
1994 USE_GTK_TOOLKIT="GTK3"
1997 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2001 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2004 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2006 dnl Checks for libraries.
2007 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
2008 if test "$pkg_check_gtk" = "no" &&
2009 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2011 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2013 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2016 if test x"$pkg_check_gtk" = xyes; then
2018 AC_SUBST(GTK_CFLAGS)
2020 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2021 CFLAGS="$CFLAGS $GTK_CFLAGS"
2022 LIBS="$GTK_LIBS $LIBS"
2023 dnl Try to compile a simple GTK program.
2025 AC_CHECK_FUNCS(gtk_main, GTK_COMPILES=yes)
2026 if test "${GTK_COMPILES}" != "yes"; then
2027 if test "$USE_X_TOOLKIT" != "maybe"; then
2028 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2032 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2033 GTK_OBJ="gtkutil.o $GTK_OBJ"
2035 if "$PKG_CONFIG" --atleast-version=2.10 gtk+-2.0; then
2038 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2039 closing open displays. This is no problem if you just use
2040 one display, but if you use more than one and close one of them
2050 if test "${HAVE_GTK}" = "yes"; then
2052 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2053 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2054 if test "$with_toolkit_scroll_bars" != no; then
2055 with_toolkit_scroll_bars=yes
2058 dnl Check if we have the old file selection dialog declared and
2059 dnl in the link library. In 2.x it may be in the library,
2060 dnl but not declared if deprecated featured has been selected out.
2061 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2062 HAVE_GTK_FILE_SELECTION=no
2063 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2064 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2065 #include <gtk/gtk.h>])
2066 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2067 AC_CHECK_FUNCS(gtk_file_selection_new)
2071 dnl Check for functions introduced in 2.14 and later.
2072 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2073 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2074 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2075 gtk_orientable_set_orientation \
2076 gtk_window_set_has_resize_grip)
2078 term_header=gtkutil.h
2081 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2082 dnl other platforms.
2085 if test "${with_dbus}" = "yes"; then
2086 PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
2087 if test "$HAVE_DBUS" = yes; then
2088 LIBS="$LIBS $DBUS_LIBS"
2089 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2090 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2091 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2093 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2094 dbus_type_is_valid \
2095 dbus_validate_bus_name \
2096 dbus_validate_path \
2097 dbus_validate_interface \
2098 dbus_validate_member)
2104 dnl GSettings has been tested under GNU/Linux only.
2106 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2107 PKG_CHECK_MODULES(GSETTINGS, gio-2.0 >= 2.26, HAVE_GSETTINGS=yes, HAVE_GSETTINGS=no)
2108 if test "$HAVE_GSETTINGS" = "yes"; then
2109 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2110 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2111 SETTINGS_LIBS="$GSETTINGS_LIBS"
2115 dnl GConf has been tested under GNU/Linux only.
2116 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2118 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2119 PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
2120 if test "$HAVE_GCONF" = yes; then
2121 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2122 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2123 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2124 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2128 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2129 PKG_CHECK_MODULES(GOBJECT, gobject-2.0 >= 2.0, HAVE_GOBJECT=yes, HAVE_GOBJECT=no)
2130 if test "$HAVE_GOBJECT" = "yes"; then
2131 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2132 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2134 SAVE_CFLAGS="$CFLAGS"
2136 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2137 LIBS="$SETTINGS_LIBS $LIBS"
2138 AC_CHECK_FUNCS([g_type_init])
2139 CFLAGS="$SAVE_CFLAGS"
2142 AC_SUBST(SETTINGS_CFLAGS)
2143 AC_SUBST(SETTINGS_LIBS)
2146 dnl SELinux is available for GNU/Linux only.
2149 if test "${with_selinux}" = "yes"; then
2150 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2151 if test "$HAVE_LIBSELINUX" = yes; then
2152 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2153 LIBSELINUX_LIBS=-lselinux
2156 AC_SUBST(LIBSELINUX_LIBS)
2159 HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=no
2160 if test "${with_gnutls}" = "yes" ; then
2161 PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6], HAVE_GNUTLS=yes, HAVE_GNUTLS=no)
2162 if test "${HAVE_GNUTLS}" = "yes"; then
2163 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2166 CFLAGS="$CFLAGS $LIBGNUTLS_CFLAGS"
2167 LIBS="$LIBGNUTLS_LIBS $LIBS"
2168 AC_CHECK_FUNCS(gnutls_certificate_set_verify_function, HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=yes)
2170 if test "${HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY}" = "yes"; then
2171 AC_DEFINE(HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY, 1, [Define if using GnuTLS certificate verification callbacks.])
2175 AC_SUBST(LIBGNUTLS_LIBS)
2176 AC_SUBST(LIBGNUTLS_CFLAGS)
2178 dnl Do not put whitespace before the #include statements below.
2179 dnl Older compilers (eg sunos4 cc) choke on it.
2182 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2183 if test "$with_xaw3d" != no; then
2184 AC_CACHE_VAL(emacs_cv_xaw3d,
2185 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2186 #include <X11/Intrinsic.h>
2187 #include <X11/Xaw3d/Simple.h>]],
2189 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2190 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2191 emacs_cv_xaw3d=no)])
2195 if test $emacs_cv_xaw3d = yes; then
2196 AC_MSG_CHECKING(for xaw3d)
2197 AC_MSG_RESULT([yes; using Lucid toolkit])
2201 AC_DEFINE(HAVE_XAW3D, 1,
2202 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2204 AC_MSG_CHECKING(for xaw3d)
2206 AC_MSG_CHECKING(for libXaw)
2207 AC_CACHE_VAL(emacs_cv_xaw,
2208 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2209 #include <X11/Intrinsic.h>
2210 #include <X11/Xaw/Simple.h>]],
2214 if test $emacs_cv_xaw = yes; then
2215 AC_MSG_RESULT([yes; using Lucid toolkit])
2218 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2219 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2221 AC_MSG_ERROR([No X toolkit could be found.
2222 If you are sure you want Emacs compiled without an X toolkit, pass
2224 to configure. Otherwise, install the development libraries for the toolkit
2225 that you want to use (e.g. Gtk+) and re-run configure.])
2230 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2233 if test "${USE_X_TOOLKIT}" != "none"; then
2234 AC_MSG_CHECKING(X11 toolkit version)
2235 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2236 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2237 [[#if XtSpecificationRelease < 6
2240 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2241 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2242 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2243 AC_MSG_RESULT(6 or newer)
2244 AC_DEFINE(HAVE_X11XTR6, 1,
2245 [Define to 1 if you have the X11R6 or newer version of Xt.])
2246 LIBXTR6="-lSM -lICE"
2248 ## Use libw.a along with X11R6 Xt.
2249 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2252 AC_MSG_RESULT(before 6)
2255 dnl If using toolkit, check whether libXmu.a exists.
2256 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2258 if test x$HAVE_X11XTR6 = xyes; then
2259 LIBS="-lXt -lSM -lICE $LIBS"
2263 AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
2264 test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
2265 dnl ac_cv_lib_Xmu_XmuConvertStandardSelection is also referenced below.
2269 dnl FIXME the logic here seems weird, but this is what cpp was doing.
2270 dnl Why not just test for libxmu in the normal way?
2273 ## These systems don't supply Xmu.
2275 test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
2280 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
2281 if test "${HAVE_X11}" = "yes"; then
2282 if test "${USE_X_TOOLKIT}" != "none"; then
2283 AC_CHECK_LIB(Xext, XShapeQueryExtension)
2288 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2289 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2290 if test -d /usr/include/openmotif; then
2291 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2292 emacs_cv_openmotif=yes
2293 case "$canonical" in
2294 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2295 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2298 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2301 emacs_cv_openmotif=no
2303 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2304 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2305 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2308 Motif version prior to 2.1.
2310 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2311 if test $emacs_cv_motif_version_2_1 = yes; then
2312 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2313 if test x$emacs_cv_openmotif = xyes; then
2314 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2317 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2318 # We put this in CFLAGS temporarily to precede other -I options
2319 # that might be in CFLAGS temporarily.
2320 # We put this in CPPFLAGS where it precedes the other -I options.
2321 OLD_CPPFLAGS=$CPPFLAGS
2323 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2324 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2325 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2327 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2328 if test $emacs_cv_lesstif = yes; then
2329 # Make sure this -I option remains in CPPFLAGS after it is set
2330 # back to REAL_CPPFLAGS.
2331 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2332 # have those other -I options anyway. Ultimately, having this
2333 # directory ultimately in CPPFLAGS will be enough.
2334 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2335 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2338 CPPFLAGS=$OLD_CPPFLAGS
2341 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2342 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2345 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2346 dnl using Motif or Xaw3d is available, and unless
2347 dnl --with-toolkit-scroll-bars=no was specified.
2349 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2350 [Define to 1 if we should use toolkit scroll bars.])dnl
2351 USE_TOOLKIT_SCROLL_BARS=no
2352 if test "${with_toolkit_scroll_bars}" != "no"; then
2353 if test "${USE_X_TOOLKIT}" != "none"; then
2354 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2355 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2357 USE_TOOLKIT_SCROLL_BARS=yes
2358 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2359 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2360 USE_TOOLKIT_SCROLL_BARS=yes
2362 elif test "${HAVE_GTK}" = "yes"; then
2363 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2364 USE_TOOLKIT_SCROLL_BARS=yes
2365 elif test "${HAVE_NS}" = "yes"; then
2366 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2367 USE_TOOLKIT_SCROLL_BARS=yes
2368 elif test "${HAVE_W32}" = "yes"; then
2369 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2370 USE_TOOLKIT_SCROLL_BARS=yes
2374 dnl See if XIM is available.
2375 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2376 #include <X11/Xlib.h>
2377 #include <X11/Xresource.h>]],
2378 [[XIMProc callback;]])],
2380 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2383 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2385 if test "${with_xim}" != "no"; then
2386 AC_DEFINE(USE_XIM, 1,
2387 [Define to 1 if we should use XIM, if it is available.])
2391 if test "${HAVE_XIM}" != "no"; then
2393 if test "$GCC" = yes; then
2394 CFLAGS="$CFLAGS --pedantic-errors"
2396 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2397 #include <X11/Xlib.h>
2398 #include <X11/Xresource.h>]],
2404 XPointer *client_data;
2406 /* If we're not using GCC, it's probably not XFree86, and this is
2407 probably right, but we can't use something like --pedantic-errors. */
2408 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2409 char*, XIMProc, XPointer*);
2411 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2413 [emacs_cv_arg6_star=yes])
2414 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2415 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2416 either XPointer or XPointer*.])dnl
2417 if test "$emacs_cv_arg6_star" = yes; then
2418 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2420 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2425 ### Start of font-backend (under any platform) section.
2426 # (nothing here yet -- this is a placeholder)
2427 ### End of font-backend (under any platform) section.
2429 ### Start of font-backend (under X11) section.
2430 if test "${HAVE_X11}" = "yes"; then
2431 PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
2433 ## Use -lXft if available, unless `--with-xft=no'.
2435 if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2438 if test "x${with_xft}" != "xno"; then
2440 PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
2441 ## Because xftfont.c uses XRenderQueryExtension, we also
2442 ## need to link to -lXrender.
2444 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2445 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2446 OLD_CPPFLAGS="$CPPFLAGS"
2447 OLD_CFLAGS="$CFLAGS"
2449 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2450 CFLAGS="$CFLAGS $XFT_CFLAGS"
2451 XFT_LIBS="-lXrender $XFT_LIBS"
2452 LIBS="$XFT_LIBS $LIBS"
2453 AC_CHECK_HEADER(X11/Xft/Xft.h,
2454 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS))
2456 if test "${HAVE_XFT}" = "yes"; then
2457 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2459 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2461 CPPFLAGS="$OLD_CPPFLAGS"
2462 CFLAGS="$OLD_CFLAGS"
2464 fi # "${HAVE_XFT}" = "yes"
2465 fi # "$HAVE_XFT" != no
2466 fi # "x${with_xft}" != "xno"
2468 ## We used to allow building with FreeType and without Xft.
2469 ## However, the ftx font backend driver is not in good shape.
2470 if test "$HAVE_XFT" != "yes"; then
2471 dnl For the "Does Emacs use" message at the end.
2475 dnl Strict linkers fail with
2476 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2477 dnl if -lfreetype is not specified.
2478 dnl The following is needed to set FREETYPE_LIBS.
2479 PKG_CHECK_MODULES(FREETYPE, freetype2, HAVE_FREETYPE=yes,
2482 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2486 if test "${HAVE_FREETYPE}" = "yes"; then
2487 AC_DEFINE(HAVE_FREETYPE, 1,
2488 [Define to 1 if using the freetype and fontconfig libraries.])
2489 if test "${with_libotf}" != "no"; then
2490 PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
2492 if test "$HAVE_LIBOTF" = "yes"; then
2493 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2494 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2495 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2496 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2497 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2498 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2499 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2503 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2504 dnl Does the new font backend require it, or can it work without it?
2508 if test "${HAVE_LIBOTF}" = yes; then
2509 if test "${with_m17n_flt}" != "no"; then
2510 PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
2511 if test "$HAVE_M17N_FLT" = "yes"; then
2512 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2523 ### End of font-backend (under X11) section.
2525 AC_SUBST(FREETYPE_CFLAGS)
2526 AC_SUBST(FREETYPE_LIBS)
2527 AC_SUBST(FONTCONFIG_CFLAGS)
2528 AC_SUBST(FONTCONFIG_LIBS)
2529 AC_SUBST(LIBOTF_CFLAGS)
2530 AC_SUBST(LIBOTF_LIBS)
2531 AC_SUBST(M17N_FLT_CFLAGS)
2532 AC_SUBST(M17N_FLT_LIBS)
2534 ### Use -lXpm if available, unless `--with-xpm=no'.
2538 if test "${HAVE_W32}" = "yes"; then
2539 if test "${with_xpm}" != "no"; then
2540 SAVE_CPPFLAGS="$CPPFLAGS"
2541 SAVE_LDFLAGS="$LDFLAGS"
2542 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
2543 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
2544 AC_CHECK_HEADER(X11/xpm.h,
2545 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
2546 if test "${HAVE_XPM}" = "yes"; then
2547 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2548 AC_EGREP_CPP(no_return_alloc_pixels,
2549 [#include "X11/xpm.h"
2550 #ifndef XpmReturnAllocPixels
2551 no_return_alloc_pixels
2553 ], HAVE_XPM=no, HAVE_XPM=yes)
2555 if test "${HAVE_XPM}" = "yes"; then
2556 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
2560 CPPFLAGS="$SAVE_CPPFLAGS"
2561 LDFLAGS="$SAVE_LDFLAGS"
2566 if test "${HAVE_XPM}" = "yes"; then
2567 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2572 if test "${HAVE_X11}" = "yes"; then
2573 if test "${with_xpm}" != "no"; then
2574 AC_CHECK_HEADER(X11/xpm.h,
2575 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2576 if test "${HAVE_XPM}" = "yes"; then
2577 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2578 AC_EGREP_CPP(no_return_alloc_pixels,
2579 [#include "X11/xpm.h"
2580 #ifndef XpmReturnAllocPixels
2581 no_return_alloc_pixels
2583 ], HAVE_XPM=no, HAVE_XPM=yes)
2585 if test "${HAVE_XPM}" = "yes"; then
2593 if test "${HAVE_XPM}" = "yes"; then
2594 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2601 ### Use -ljpeg if available, unless `--with-jpeg=no'.
2604 if test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2605 if test "${with_jpeg}" != "no"; then
2606 dnl Checking for jpeglib.h can lose because of a redefinition of
2608 AC_CHECK_HEADER(jerror.h,
2609 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
2612 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2613 if test "${HAVE_JPEG}" = "yes"; then
2614 AC_DEFINE(HAVE_JPEG)
2615 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2616 [#include <jpeglib.h>
2617 version=JPEG_LIB_VERSION
2619 [AC_DEFINE(HAVE_JPEG)],
2620 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2623 if test "${HAVE_JPEG}" = "yes"; then
2629 ### Use -lpng if available, unless `--with-png=no'.
2632 if test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2633 if test "${with_png}" != "no"; then
2634 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
2635 # in /usr/include/libpng.
2636 AC_CHECK_HEADERS(png.h libpng/png.h, break)
2637 if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
2638 AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
2642 if test "${HAVE_PNG}" = "yes"; then
2643 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2644 LIBPNG="-lpng -lz -lm"
2646 AC_CHECK_DECL(png_longjmp,
2648 [AC_DEFINE(PNG_DEPSTRUCT, [],
2649 [Define to empty to suppress deprecation warnings when building
2650 with --enable-gcc-warnings and with libpng versions before 1.5,
2651 which lack png_longjmp.])],
2652 [[#ifdef HAVE_LIBPNG_PNG_H
2653 # include <libpng/png.h>
2662 ### Use -ltiff if available, unless `--with-tiff=no'.
2665 if test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2666 if test "${with_tiff}" != "no"; then
2667 AC_CHECK_HEADER(tiffio.h,
2669 # At least one tiff package requires the jpeg library.
2670 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
2671 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
2674 if test "${HAVE_TIFF}" = "yes"; then
2675 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
2676 dnl FIXME -lz -lm, as per libpng?
2682 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
2685 if test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
2686 || test "${HAVE_W32}" = "yes"; then
2687 AC_CHECK_HEADER(gif_lib.h,
2688 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
2689 # Earlier versions can crash Emacs.
2690 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])
2692 if test "$HAVE_GIF" = yes; then
2694 elif test "$HAVE_GIF" = maybe; then
2695 # If gif_lib.h but no libgif, try libungif.
2696 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
2697 test "$HAVE_GIF" = yes && LIBGIF=-lungif
2700 if test "${HAVE_GIF}" = "yes"; then
2701 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
2706 dnl Check for required libraries.
2707 if test "${HAVE_X11}" = "yes"; then
2710 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
2711 MISSING="libXpm" && WITH_NO="--with-xpm=no"
2712 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
2713 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
2714 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
2715 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
2716 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
2717 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
2718 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
2719 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
2721 if test "X${MISSING}" != X; then
2722 AC_MSG_ERROR([The following required libraries were not found:
2724 Maybe some development libraries/packages are missing?
2725 If you don't want to link with them give
2727 as options to configure])
2731 ### Use -lgpm if available, unless `--with-gpm=no'.
2734 if test "${with_gpm}" != "no"; then
2735 AC_CHECK_HEADER(gpm.h,
2736 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
2738 if test "${HAVE_GPM}" = "yes"; then
2739 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
2745 dnl Check for malloc/malloc.h on darwin
2746 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
2749 ### Use NeXTstep API to implement GUI.
2750 if test "${HAVE_NS}" = "yes"; then
2751 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
2752 if test "${NS_IMPL_COCOA}" = "yes"; then
2753 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
2755 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
2756 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
2757 # See also .m.o rule in Makefile.in */
2758 # FIXME: are all these flags really needed? Document here why. */
2759 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
2760 ## Extra CFLAGS applied to src/*.m files.
2761 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"
2763 # We also have mouse menus.
2768 if test "${HAVE_W32}" = "yes"; then
2772 ### Use session management (-lSM -lICE) if available
2775 if test "${HAVE_X11}" = "yes"; then
2776 AC_CHECK_HEADER(X11/SM/SMlib.h,
2777 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
2779 if test "${HAVE_X_SM}" = "yes"; then
2780 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
2784 *) LIBS="$LIBXSM $LIBS" ;;
2790 ### Use libxml (-lxml2) if available
2792 if test "${with_xml2}" != "no"; then
2793 ### I'm not sure what the version number should be, so I just guessed.
2794 PKG_CHECK_MODULES(LIBXML2, libxml-2.0 > 2.6.17, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2795 if test "${HAVE_LIBXML2}" = "yes"; then
2796 LIBS="$LIBXML2_LIBS $LIBS"
2797 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2798 if test "${HAVE_LIBXML2}" = "yes"; then
2799 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
2806 AC_SUBST(LIBXML2_LIBS)
2807 AC_SUBST(LIBXML2_CFLAGS)
2809 # If netdb.h doesn't declare h_errno, we must declare it by hand.
2810 AC_CACHE_CHECK(whether netdb declares h_errno,
2811 emacs_cv_netdb_declares_h_errno,
2812 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
2813 [[return h_errno;]])],
2814 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
2815 if test $emacs_cv_netdb_declares_h_errno = yes; then
2816 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
2819 # sqrt and other floating-point functions such as fmod and frexp
2820 # are found in -lm on most systems.
2821 AC_CHECK_LIB(m, sqrt)
2823 # Check for mail-locking functions in a "mail" library. Probably this should
2824 # have the same check as for liblockfile below.
2825 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
2826 if test $have_mail = yes; then
2828 LIBS="$LIBS_MAIL $LIBS"
2829 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
2833 dnl Debian, at least:
2834 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
2835 if test $have_lockfile = yes; then
2836 LIBS_MAIL=-llockfile
2837 LIBS="$LIBS_MAIL $LIBS"
2838 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
2840 # If we have the shared liblockfile, assume we must use it for mail
2841 # locking (e.g. Debian). If we couldn't link against liblockfile
2842 # (no liblockfile.a installed), ensure that we don't need to.
2843 dnl This works for files generally, not just executables.
2844 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
2845 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
2846 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
2847 if test $ac_cv_prog_liblockfile = yes; then
2848 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
2849 This probably means that movemail could lose mail.
2850 There may be a `development' package to install containing liblockfile.])
2853 AC_CHECK_HEADERS_ONCE(maillock.h)
2856 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
2857 ## interlock access to the mail spool. The alternative is a lock file named
2858 ## /usr/spool/mail/$USER.lock.
2861 aix4-2) mail_lock="lockf" ;;
2863 gnu|freebsd|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
2865 ## On GNU/Linux systems, both methods are used by various mail programs.
2866 ## I assume most people are using newer mailers that have heard of flock.
2867 ## Change this if you need to.
2868 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
2869 ## configure gets the right answers, and that means *NOT* using flock.
2870 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
2871 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
2872 ## Debian maintainer hasn't provided a clean fix for Emacs.
2873 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
2874 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
2875 ## correct logic. -- fx
2876 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
2877 ## liblockfile is a Free Software replacement for libmail, used on
2878 ## Debian systems and elsewhere. -rfr.
2881 if test $have_mail = yes || test $have_lockfile = yes; then
2882 test $ac_cv_header_maillock_h = yes && mail_lock=no
2888 case "$mail_lock" in
2889 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
2891 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
2893 *) BLESSMAIL_TARGET="need-blessmail" ;;
2895 AC_SUBST(BLESSMAIL_TARGET)
2898 AC_CHECK_FUNCS(gethostname \
2899 getrusage get_current_dir_name \
2901 select getpagesize setlocale \
2902 utimes getrlimit setrlimit shutdown getaddrinfo \
2903 strsignal setitimer \
2904 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
2905 gai_strerror mkstemp getline getdelim fsync sync \
2906 difftime posix_memalign \
2907 getpwent endpwent getgrent endgrent \
2909 cfmakeraw cfsetspeed copysign __executable_start)
2911 ## Eric Backus <ericb@lsid.hp.com> says, HP-UX 9.x on HP 700 machines
2912 ## has a broken `rint' in some library versions including math library
2913 ## version number A.09.05.
2914 ## You can fix the math library by installing patch number PHSS_4630.
2915 ## But we can fix it more reliably for Emacs by just not using rint.
2916 ## We also skip HAVE_RANDOM - see comments in src/conf_post.h.
2919 *) AC_CHECK_FUNCS(random rint) ;;
2922 dnl Cannot use AC_CHECK_FUNCS
2923 AC_CACHE_CHECK([for __builtin_unwind_init],
2924 emacs_cv_func___builtin_unwind_init,
2925 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
2926 emacs_cv_func___builtin_unwind_init=yes,
2927 emacs_cv_func___builtin_unwind_init=no)])
2928 if test $emacs_cv_func___builtin_unwind_init = yes; then
2929 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
2930 [Define to 1 if you have the `__builtin_unwind_init' function.])
2933 AC_CHECK_HEADERS_ONCE(sys/un.h)
2938 AC_CHECK_FUNCS(grantpt)
2940 # PTY-related GNU extensions.
2941 AC_CHECK_FUNCS(getpt posix_openpt)
2943 # Check this now, so that we will NOT find the above functions in ncurses.
2944 # That is because we have not set up to link ncurses in lib-src.
2945 # It's better to believe a function is not available
2946 # than to expect to find it in ncurses.
2947 # Also we need tputs and friends to be able to build at all.
2948 AC_MSG_CHECKING([for library containing tputs])
2949 # Run a test program that contains a call to tputs, a call that is
2950 # never executed. This tests whether a pre-'main' dynamic linker
2951 # works with the library. It's too much trouble to actually call
2952 # tputs in the test program, due to portability hassles. When
2953 # cross-compiling, assume the test program will run if it links.
2954 AC_DEFUN([tputs_link_source], [
2956 [[extern void tputs (const char *, int, int (*)(int));
2957 int main (int argc, char **argv)
2960 tputs (argv[0], 0, 0);
2964 # Maybe curses should be tried earlier?
2965 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
2966 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
2968 if test -z "$tputs_library"; then
2972 LIBS_TERMCAP=-l$tputs_library
2974 LIBS="$LIBS_TERMCAP $LIBS"
2976 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
2977 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
2979 if test "X$msg" != Xno; then
2983 AC_MSG_RESULT([$msg])
2984 if test "X$msg" = Xno; then
2985 AC_MSG_ERROR([The required function `tputs' was not found in any library.
2986 The following libraries were tried (in order):
2987 libtinfo, libncurses, libterminfo, libtermcap, libcurses
2988 Please try installing whichever of these libraries is most appropriate
2989 for your system, together with its header files.
2990 For example, a libncurses-dev(el) or similar package.])
2993 ## Use termcap instead of terminfo?
2994 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
2996 ## FIXME? In the cases below where we unconditionally set
2997 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
2998 ## if that was found above to have tputs.
2999 ## Should we use the gnu* logic everywhere?
3001 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3002 ## The ncurses library has been moved out of the System framework in
3003 ## Mac OS X 10.2. So if configure detects it, set the command-line
3004 ## option to use it.
3005 darwin) LIBS_TERMCAP="-lncurses" ;;
3007 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3010 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3011 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3012 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3013 [[#if __FreeBSD_version < 400000
3016 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3018 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3020 if test $emacs_cv_freebsd_terminfo = yes; then
3021 LIBS_TERMCAP="-lncurses"
3024 LIBS_TERMCAP="-ltermcap"
3029 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3031 LIBS_TERMCAP="-ltermcap"
3035 openbsd) LIBS_TERMCAP="-lncurses" ;;
3037 ## hpux: Make sure we get select from libc rather than from libcurses
3038 ## because libcurses on HPUX 10.10 has a broken version of select.
3039 ## We used to use -lc -lcurses, but this may be cleaner.
3040 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3041 # set that way, now it uses the default). Isn't this a contradiction?
3042 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3046 TERMCAP_OBJ=tparam.o
3047 if test $TERMINFO = yes; then
3048 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3049 TERMCAP_OBJ=terminfo.o
3051 AC_SUBST(LIBS_TERMCAP)
3052 AC_SUBST(TERMCAP_OBJ)
3055 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3056 # On Darwin, res_init appears not to be useful: see bug#562 and
3057 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3060 if test $opsys != darwin; then
3062 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3063 #include <arpa/nameser.h>
3064 #include <resolv.h>]],
3065 [[return res_init();]])],
3066 have_res_init=yes, have_res_init=no)
3067 if test "$have_res_init" = no; then
3069 LIBS="$LIBS -lresolv"
3070 AC_MSG_CHECKING(for res_init with -lresolv)
3071 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3072 #include <arpa/nameser.h>
3073 #include <resolv.h>]],
3074 [[return res_init();]])],
3075 have_res_init=yes, have_res_init=no)
3076 AC_MSG_RESULT($have_res_init)
3077 if test "$have_res_init" = yes ; then
3083 if test "$have_res_init" = yes; then
3084 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3088 # Do we need the Hesiod library to provide the support routines?
3089 dnl FIXME? Should we be skipping this on Darwin too?
3091 if test "$with_hesiod" != no ; then
3092 # Don't set $LIBS here -- see comments above. FIXME which comments?
3093 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3094 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3095 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3096 if test "$resolv" = yes ; then
3101 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3102 hesiod=yes, :, $RESOLVLIB)])
3104 if test x"$hesiod" = xyes; then
3105 AC_DEFINE(HAVE_LIBHESIOD, 1,
3106 [Define to 1 if you have the hesiod library (-lhesiod).])
3112 # Do we need libresolv (due to res_init or Hesiod)?
3113 if test "$resolv" = yes && test $opsys != darwin; then
3114 AC_DEFINE(HAVE_LIBRESOLV, 1,
3115 [Define to 1 if you have the resolv library (-lresolv).])
3122 # These tell us which Kerberos-related libraries to use.
3129 if test "${with_kerberos}" != no; then
3130 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3131 if test $have_com_err = yes; then
3132 COM_ERRLIB=-lcom_err
3133 LIBS="$COM_ERRLIB $LIBS"
3134 AC_DEFINE(HAVE_LIBCOM_ERR, 1, [Define to 1 if you have the `com_err' library (-lcom_err).])
3136 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3137 if test $have_crypto = yes; then
3139 LIBS="$CRYPTOLIB $LIBS"
3140 AC_DEFINE(HAVE_LIBCRYPTO, 1, [Define to 1 if you have the `crypto' library (-lcrypto).])
3142 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3143 if test $have_k5crypto = yes; then
3144 CRYPTOLIB=-lk5crypto
3145 LIBS="$CRYPTOLIB $LIBS"
3146 AC_DEFINE(HAVE_LIBK5CRYPTO, 1, [Define to 1 if you have the `k5crypto' library (-lk5crypto).])
3148 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3149 if test $have_krb5=yes; then
3151 LIBS="$KRB5LIB $LIBS"
3152 AC_DEFINE(HAVE_LIBKRB5, 1, [Define to 1 if you have the `krb5' library (-lkrb5).])
3154 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3155 if test "${with_kerberos5}" = no; then
3156 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3157 if test $have_des425 = yes; then
3159 LIBS="$DESLIB $LIBS"
3160 AC_DEFINE(HAVE_LIBDES425, 1, [Define to 1 if you have the `des425' library (-ldes425).])
3162 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3163 if test $have_des = yes; then
3165 LIBS="$DESLIB $LIBS"
3166 AC_DEFINE(HAVE_LIBDES, 1, [Define to 1 if you have the `des' library (-ldes).])
3169 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3170 if test $have_krb4 = yes; then
3172 LIBS="$KRB4LIB $LIBS"
3173 AC_DEFINE(HAVE_LIBKRB4, 1, [Define to 1 if you have the `krb4' library (-lkrb4).])
3175 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3176 if test $have_krb = yes; then
3178 LIBS="$KRB4LIB $LIBS"
3179 AC_DEFINE(HAVE_LIBKRB, 1, [Define to 1 if you have the `krb' library (-lkrb).])
3184 if test "${with_kerberos5}" != no; then
3185 AC_CHECK_HEADERS(krb5.h,
3186 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3187 [#include <krb5.h>])])
3189 AC_CHECK_HEADERS(des.h,,
3190 [AC_CHECK_HEADERS(kerberosIV/des.h,,
3191 [AC_CHECK_HEADERS(kerberos/des.h)])])
3192 AC_CHECK_HEADERS(krb.h,,
3193 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3194 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3196 AC_CHECK_HEADERS(com_err.h)
3199 AC_SUBST(COM_ERRLIB)
3205 AC_CHECK_FUNCS_ONCE(tzset)
3206 AC_MSG_CHECKING(whether localtime caches TZ)
3207 AC_CACHE_VAL(emacs_cv_localtime_cache,
3208 [if test x$ac_cv_func_tzset = xyes; then
3209 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3210 char TZ_GMT0[] = "TZ=GMT0";
3211 char TZ_PST8[] = "TZ=PST8";
3214 time_t now = time ((time_t *) 0);
3215 int hour_GMT0, hour_unset;
3216 if (putenv (TZ_GMT0) != 0)
3218 hour_GMT0 = localtime (&now)->tm_hour;
3220 hour_unset = localtime (&now)->tm_hour;
3221 if (putenv (TZ_PST8) != 0)
3223 if (localtime (&now)->tm_hour == hour_GMT0)
3226 if (localtime (&now)->tm_hour != hour_unset)
3229 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3230 [# If we have tzset, assume the worst when cross-compiling.
3231 emacs_cv_localtime_cache=yes])
3233 # If we lack tzset, report that localtime does not cache TZ,
3234 # since we can't invalidate the cache if we don't have tzset.
3235 emacs_cv_localtime_cache=no
3237 AC_MSG_RESULT($emacs_cv_localtime_cache)
3238 if test $emacs_cv_localtime_cache = yes; then
3239 AC_DEFINE(LOCALTIME_CACHE, 1,
3240 [Define to 1 if localtime caches TZ.])
3244 AC_CHECK_FUNC(socket, , ok_so_far=no)
3245 if test $ok_so_far = yes; then
3246 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3248 if test $ok_so_far = yes; then
3249 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3251 if test $ok_so_far = yes; then
3252 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3253 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3254 [Define to 1 if you have inet sockets.])
3257 if test -f /usr/lpp/X11/bin/smt.exp; then
3258 AC_DEFINE(HAVE_AIX_SMT_EXP, 1,
3259 [Define to 1 if the file /usr/lpp/X11/bin/smt.exp exists.])
3262 AC_MSG_CHECKING(whether system supports dynamic ptys)
3263 if test -d /dev/pts && ls -d /dev/ptmx > /dev/null 2>&1 ; then
3265 AC_DEFINE(HAVE_DEV_PTMX, 1, [Define to 1 if dynamic ptys are supported.])
3270 dnl Check for a Solaris 2.4 vfork bug that Autoconf misses (through 2.69).
3271 dnl This can be removed once we assume Autoconf 2.70.
3273 *-solaris2.4 | *-solaris2.4.*)
3274 dnl Disable the Autoconf-generated vfork test.
3275 : ${ac_cv_func_vfork_works=no};;
3280 AC_CHECK_FUNCS(snprintf)
3282 dnl Adapted from Haible's version.
3283 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3284 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3285 [[char* cs = nl_langinfo(CODESET);]])],
3286 emacs_cv_langinfo_codeset=yes,
3287 emacs_cv_langinfo_codeset=no)
3289 if test $emacs_cv_langinfo_codeset = yes; then
3290 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3291 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3296 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3297 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3298 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3299 if test "$emacs_cv_c_restrict_arr" = yes; then
3300 AC_DEFINE(__restrict_arr, __restrict,
3301 [Define to compiler's equivalent of C99 restrict keyword in array
3302 declarations. Define as empty for no equivalent.])
3305 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3306 dnl how the tty code is related to POSIX and/or other versions of termios.
3307 dnl The following looks like a useful start.
3309 dnl AC_SYS_POSIX_TERMIOS
3310 dnl if test $ac_cv_sys_posix_termios = yes; then
3311 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3312 dnl and macros for terminal control.])
3313 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3316 dnl Turned on June 1996 supposing nobody will mind it.
3317 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3318 in the full name stands for the login id.])
3320 dnl Every platform that uses configure (ie every non-MS platform)
3321 dnl supports this. There is a create-lockfiles option you can
3322 dnl customize if you do not want the lock files to be written.
3323 dnl So it is not clear that this #define still needs to exist.
3324 AC_DEFINE(CLASH_DETECTION, 1, [Define if you want lock files to be written,
3325 so that Emacs can tell instantly when you try to modify a file that
3326 someone else has modified in his/her Emacs.])
3328 dnl Everybody supports this, except MS.
3329 dnl Seems like the kind of thing we should be testing for, though.
3330 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3331 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3333 dnl Everybody supports this, except MS-DOS.
3334 dnl Seems like the kind of thing we should be testing for, though.
3335 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3336 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3337 4.2-compatible sockets.])
3339 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3341 AC_DEFINE(NULL_DEVICE, ["/dev/null"], [Name of the file to open to get
3342 a null file, or a data sink.])
3344 AC_DEFINE(SEPCHAR, [':'], [Character that separates PATH elements.])
3346 dnl Everybody supports this, except MS-DOS.
3347 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3349 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3352 AC_DEFINE(DIRECTORY_SEP, ['/'],
3353 [Character that separates directories in a file name.])
3355 dnl Only used on MS platforms.
3356 AH_TEMPLATE(DEVICE_SEP, [Character that separates a device in a file name.])
3358 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
3359 [Returns true if character is a device separator.])
3361 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
3362 [Returns true if character is a directory separator.])
3364 dnl On MS, this also accepts IS_DEVICE_SEP.
3365 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
3366 [Returns true if character is any form of separator.])
3369 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
3373 dnl Unfortunately without libXmu we cannot support EditRes.
3374 if test x$ac_cv_lib_Xmu_XmuConvertStandardSelection != xyes; then
3375 AC_DEFINE(NO_EDITRES, 1)
3380 dnl Assar Westerlund <assar@sics.se> says this is necessary for
3381 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
3382 AC_DEFINE(NO_EDITRES, 1)
3388 irix6-5 | sol2* | unixware )
3389 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
3390 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
3391 dnl need the constant to dimension an array. So wire in the appropriate
3393 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
3397 emacs_broken_SIGIO=no
3400 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
3401 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
3402 hpux* | irix6-5 | openbsd | sol2* | unixware )
3403 emacs_broken_SIGIO=yes
3407 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
3408 dnl the way this system works, libc functions that return malloced
3409 dnl memory use the libc malloc implementation. Calling xfree or
3410 dnl xrealloc on the results of such functions results in a crash.
3412 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
3413 dnl but that does not currently work on this system.
3415 dnl It is possible to completely override the malloc implementation on
3416 dnl AIX, but that involves putting the malloc functions in a shared
3417 dnl library and setting the MALLOCTYPE environment variable to point to
3418 dnl that shared library.
3420 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
3421 dnl to avoid a crash just use the Emacs implementation for that function.
3423 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
3424 dnl of this file, so that we do not check for get_current_dir_name
3425 dnl on AIX. But that might be fragile if something else ends
3426 dnl up testing for get_current_dir_name as a dependency.
3427 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
3428 get_current_dir_name should not be used.])
3432 dnl Circumvent a bug in FreeBSD. In the following sequence of
3433 dnl writes/reads on a PTY, read(2) returns bogus data:
3435 dnl write(2) 1022 bytes
3436 dnl write(2) 954 bytes, get EAGAIN
3437 dnl read(2) 1024 bytes in process_read_output
3438 dnl read(2) 11 bytes in process_read_output
3440 dnl That is, read(2) returns more bytes than have ever been written
3441 dnl successfully. The 1033 bytes read are the 1022 bytes written
3442 dnl successfully after processing (for example with CRs added if the
3443 dnl terminal is set up that way which it is here). The same bytes will
3444 dnl be seen again in a later read(2), without the CRs.
3445 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
3446 work around an issue when reading from a PTY.])
3452 dnl FIXME Can't we test if this exists (eg /proc/$$)?
3453 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
3458 darwin | freebsd | netbsd | openbsd )
3459 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
3460 close a pty to make it a controlling terminal (it is already a
3461 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
3465 dnl FIXME Surely we can test for this rather than hard-code it.
3467 netbsd | openbsd) sound_device="/dev/audio" ;;
3468 *) sound_device="/dev/dsp" ;;
3472 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
3473 [Name of the default sound device.])
3476 dnl Emacs can read input using SIGIO and buffering characters itself,
3477 dnl or using CBREAK mode and making C-g cause SIGINT.
3478 dnl The choice is controlled by the variable interrupt_input.
3480 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
3482 dnl Emacs uses the presence of the USABLE_SIGIO macro
3483 dnl to indicate whether or not signal-driven I/O is possible. It uses
3484 dnl INTERRUPT_INPUT to decide whether to use it by default.
3486 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
3487 dnl CBREAK mode has two disadvantages
3488 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
3489 dnl I hear that in system V this problem does not exist.
3490 dnl 2) Control-G causes output to be discarded.
3491 dnl I do not know whether this can be fixed in system V.
3493 dnl Another method of doing input is planned but not implemented.
3494 dnl It would have Emacs fork off a separate process
3495 dnl to read the input and send it to the true Emacs process
3498 darwin | gnu-linux | gnu-kfreebsd )
3499 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
3504 dnl If the system's imake configuration file defines `NeedWidePrototypes'
3505 dnl as `NO', we must define NARROWPROTO manually. Such a define is
3506 dnl generated in the Makefile generated by `xmkmf'. If we don't define
3507 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
3508 dnl taking float or double parameters.
3510 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
3511 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
3512 file defines `NeedWidePrototypes' as `NO'.])
3517 dnl Used in process.c, this must be a loop, even if it only runs once.
3518 dnl (Except on SGI; see below. Take that, clarity and consistency!)
3519 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
3520 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
3521 dnl trying suffixes 0-16.
3522 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
3523 first PTY, if PTYs are supported.])
3524 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
3525 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
3526 end of a PTY, if non-standard.])
3527 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
3528 end of a PTY, if non-standard.])
3532 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
3533 dnl You allocate a pty by opening /dev/ptc to get the master side.
3534 dnl To get the name of the slave side, you just ttyname() the master side.
3535 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
3536 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
3540 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3541 dnl multi-line AC_DEFINEs are hard. :(
3542 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)])
3543 AC_DEFINE(PTY_NAME_SPRINTF, [])
3544 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3547 dnl FIXME? Maybe use same as freebsd - see bug#12040.
3549 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3550 dnl Not used, because PTY_ITERATION is defined.
3551 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3552 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
3553 dnl But we don't have to block SIGCHLD because it is blocked in the
3554 dnl implementation of grantpt.
3555 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (0)])
3556 AC_DEFINE(PTY_NAME_SPRINTF, [])
3557 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3561 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3564 gnu-linux | gnu-kfreebsd | freebsd | netbsd )
3566 if test "x$ac_cv_func_grantpt" = xyes; then
3567 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
3568 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3569 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
3570 dnl to prevent sigchld_handler from intercepting the child's death.
3571 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); }])
3572 dnl if HAVE_POSIX_OPENPT
3573 if test "x$ac_cv_func_posix_openpt" = xyes; then
3574 AC_DEFINE(PTY_OPEN, [fd = posix_openpt (O_RDWR | O_NOCTTY)])
3575 AC_DEFINE(PTY_NAME_SPRINTF, [])
3577 elif test "x$ac_cv_func_getpt" = xyes; then
3578 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
3579 AC_DEFINE(PTY_NAME_SPRINTF, [])
3581 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
3584 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3589 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3590 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
3591 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
3595 dnl It looks like this cannot be right, because it is not a loop.
3596 dnl However, process.c actually does this:
3602 dnl which presumably makes it OK, since irix == sgi (?).
3603 dnl FIXME it seems like this special treatment is unnecessary?
3604 dnl Why can't irix use a single-trip loop like eg cygwin?
3605 AC_DEFINE(PTY_ITERATION, [])
3606 dnl Not used, because PTY_ITERATION is defined.
3607 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
3608 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); }])
3609 dnl No need to get the pty name at all.
3610 AC_DEFINE(PTY_NAME_SPRINTF, [])
3611 dnl No need to use sprintf to get the tty name--we get that from _getpty.
3612 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3616 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
3617 dnl from intercepting that death. If any child but grantpt's should die
3618 dnl within, it should be caught after sigrelse(2).
3619 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); }])
3623 dnl Comments are as per sol2*.
3624 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); }])
3631 dnl This change means that we don't loop through allocate_pty too
3632 dnl many times in the (rare) event of a failure.
3633 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
3634 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
3635 dnl Push various streams modules onto a PTY channel. Used in process.c.
3636 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.])
3641 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
3642 "typing" a signal character on the pty.])
3645 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
3646 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
3647 aix4-2 | cygwin | gnu | irix6-5 | freebsd | netbsd | openbsd )
3648 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3651 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
3652 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
3653 gnu-linux | gnu-kfreebsd )
3655 AC_MSG_CHECKING([for signals via characters])
3656 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3657 #include <linux/version.h>
3658 #if LINUX_VERSION_CODE < 0x20400
3659 # error "Linux version too old"
3661 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
3663 AC_MSG_RESULT([$emacs_signals_via_chars])
3664 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3669 dnl Used in vm-limit.c
3670 AH_TEMPLATE(DATA_START, [Address of the start of the data segment.])
3671 dnl Used in lisp.h, emacs.c, mem-limits.h
3672 dnl NEWS.18 describes this as "a number which contains
3673 dnl the high bits to be inclusive or'ed with pointers that are unpacked."
3674 AH_TEMPLATE(DATA_SEG_BITS, [Extra bits to be or'd in with any pointers
3675 stored in a Lisp_Object.])
3676 dnl if Emacs uses fewer than 32 bits for the value field of a LISP_OBJECT.
3680 dnl libc defines data_start.
3681 AC_DEFINE(DATA_START, [({ extern int data_start; (char *) &data_start; })])
3685 dnl The data segment on this machine always starts at address 0x40000000.
3686 AC_DEFINE(DATA_START, [0x40000000])
3687 AC_DEFINE(DATA_SEG_BITS, [0x40000000])
3690 AC_DEFINE(DATA_START, [0x10000000])
3691 AC_DEFINE(DATA_SEG_BITS, [0x10000000])
3696 AH_TEMPLATE(TAB3, [Undocumented.])
3699 darwin) AC_DEFINE(TAB3, OXTABS) ;;
3701 gnu | freebsd | netbsd | openbsd )
3702 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
3703 AC_DEFINE(TAB3, OXTABS)
3706 gnu-linux | gnu-kfreebsd )
3707 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3711 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
3712 [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)],
3713 [Mark a secondary stack, like the register stack on the ia64.]), [])
3717 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
3718 run_time_remap; for HPUX.])
3723 dnl These won't be used automatically yet. We also need to know, at least,
3724 dnl that the stack is continuous.
3725 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
3726 registers relevant for conservative garbage collection in the jmp_buf.])
3728 AH_TEMPLATE(GC_MARK_STACK, [Define to GC_USE_GCPROS_AS_BEFORE if
3729 conservative garbage collection is not known to work.])
3733 aix4-2 | hpux* | unixware)
3734 dnl Conservative garbage collection has not been tested, so for now
3735 dnl play it safe and stick with the old-fashioned way of marking.
3736 AC_DEFINE(GC_MARK_STACK, [GC_USE_GCPROS_AS_BEFORE])
3739 dnl Not all the architectures are tested, but there are Debian packages
3740 dnl for SCM and/or Guile on them, so the technique must work. See also
3741 dnl comments in alloc.c concerning setjmp and gcc.
3742 dnl Fixme: it's probably safe to just use the GCC conditional below.
3743 gnu-linux | gnu-kfreebsd )
3744 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3745 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
3746 || defined __alpha__ || defined __mips__ || defined __s390__ \
3747 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
3748 || defined __ia64__ || defined __sh__
3751 # error "setjmp not known to work on this arch"
3753 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1),
3754 AC_DEFINE(GC_MARK_STACK, [GC_USE_GCPROS_AS_BEFORE]) )
3759 if test x$GCC = xyes; then
3760 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
3761 AC_DEFINE(GC_SETJMP_WORKS, 1)
3764 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
3765 freebsd | netbsd | openbsd | irix6-5 | sol2* )
3766 AC_DEFINE(GC_SETJMP_WORKS, 1)
3771 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
3774 [[#include <setjmp.h>
3778 _longjmp (j, 1);]])],
3779 [emacs_cv_func__setjmp=yes],
3780 [emacs_cv_func__setjmp=no])])
3781 if test $emacs_cv_func__setjmp = yes; then
3782 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
3784 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
3787 [[#include <setjmp.h>
3790 if (! sigsetjmp (j, 1))
3791 siglongjmp (j, 1);]])],
3792 [emacs_cv_func_sigsetjmp=yes],
3793 [emacs_cv_func_sigsetjmp=no])])
3794 if test $emacs_cv_func_sigsetjmp = yes; then
3795 AC_DEFINE([HAVE_SIGSETJMP], 1,
3796 [Define to 1 if sigsetjmp and siglongjmp work.
3797 The value of this symbol is irrelevant if HAVE__SETJMP is defined.])
3803 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
3804 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
3805 dnl and this is all we need.
3806 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
3813 dnl Used in xfaces.c.
3814 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
3815 some systems, where it requires time.h.])
3820 dnl Define symbols to identify the version of Unix this is.
3821 dnl Define all the symbols that apply correctly.
3822 AH_TEMPLATE(BSD4_2, [Define if the system is compatible with BSD 4.2.])
3823 AH_TEMPLATE(BSD_SYSTEM, [Define if the system is compatible with BSD 4.2.])
3824 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
3825 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
3826 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
3827 AH_TEMPLATE(USG5, [Define if the system is compatible with System V.])
3828 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
3834 dnl This symbol should be defined on AIX Version 3 ???????
3835 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3837 # error "_AIX not defined"
3839 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
3843 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
3847 dnl BSD4_3 and BSD4_4 are already defined in sys/param.h.
3848 AC_DEFINE(BSD4_2, [])
3849 AC_DEFINE(BSD_SYSTEM, [])
3850 dnl More specific than the above two. We cannot use __APPLE__ as this
3851 dnl may not be defined on non-OSX Darwin, and we cannot define DARWIN
3852 dnl here because Panther and lower CoreFoundation.h uses DARWIN to
3853 dnl distinguish OS X from pure Darwin.
3854 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
3858 AC_DEFINE(BSD4_2, [])
3859 dnl Hack to avoid calling AC_PREPROC_IFELSE multiple times.
3860 dnl Would not be needed with autoconf >= 2.67, where the
3861 dnl preprocessed output is accessible in "conftest.i".
3862 AC_DEFINE(BSD_SYSTEM_AHB, 1, [Define if AH_BOTTOM should change BSD_SYSTEM.])
3865 gnu | netbsd | openbsd )
3866 AC_DEFINE(BSD4_2, [])
3867 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3869 # error "BSD_SYSTEM not defined"
3871 ]], [[]])], [], AC_DEFINE(BSD_SYSTEM, 43) )
3874 gnu-linux | gnu-kfreebsd )
3876 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
3882 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
3888 AC_DEFINE(USG5_4, [])
3889 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
3895 AC_DEFINE(USG5_4, [])
3896 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
3902 AC_DEFINE(USG5_4, [])
3906 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
3909 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
3910 emacs_cv_usable_FIONREAD=no
3915 [AC_LANG_PROGRAM([[#include <sys/types.h>
3916 #include <sys/ioctl.h>
3918 # include <sys/filio.h>
3921 [[int foo = ioctl (0, FIONREAD, &foo);]])],
3922 [emacs_cv_usable_FIONREAD=yes],
3923 [emacs_cv_usable_FIONREAD=no])
3926 if test $emacs_cv_usable_FIONREAD = yes; then
3927 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
3929 if test $emacs_broken_SIGIO = no; then
3930 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
3932 [AC_LANG_PROGRAM([[#include <fcntl.h>
3935 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
3936 [emacs_cv_usable_SIGIO=yes],
3937 [emacs_cv_usable_SIGIO=no])],
3938 [emacs_cv_usable_SIGIO=yes],
3939 [emacs_cv_usable_SIGIO=no])
3940 if test $emacs_cv_usable_SIGIO = yes; then
3941 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
3948 dnl Emacs supplies its own malloc, but glib (part of Gtk+) calls
3949 dnl memalign and on Cygwin, that becomes the Cygwin-supplied memalign.
3950 dnl As malloc is not the Cygwin malloc, the Cygwin memalign always
3951 dnl returns ENOSYS. A workaround is to set G_SLICE=always-malloc. */
3953 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
3954 G_SLICE environment variable to "always-malloc" at startup, if
3959 dnl It works to open the pty's tty in the parent (Emacs), then
3960 dnl close and reopen it in the child.
3961 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
3962 works to open a pty's tty in the parent process, then close and
3963 reopen it in the child.])
3967 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
3968 use VSUSP instead of VSWTCH.])
3972 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
3977 # Set up the CFLAGS for real compilation, so we can substitute it.
3978 CFLAGS="$REAL_CFLAGS"
3979 CPPFLAGS="$REAL_CPPFLAGS"
3981 ## Hack to detect a buggy GCC version.
3982 if test "x$GCC" = xyes \
3983 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
3984 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
3985 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
3986 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
3989 version=$PACKAGE_VERSION
3991 copyright="Copyright (C) 2012 Free Software Foundation, Inc."
3992 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
3993 [Short copyright string for this version of Emacs.])
3996 ### Specify what sort of things we'll be editing into Makefile and config.h.
3997 ### Use configuration here uncanonicalized to avoid exceeding size limits.
3999 AC_SUBST(configuration)
4004 AC_SUBST(exec_prefix)
4007 AC_SUBST(sharedstatedir)
4008 AC_SUBST(libexecdir)
4013 AC_SUBST(standardlisppath)
4014 AC_SUBST(locallisppath)
4016 AC_SUBST(x_default_search_path)
4018 AC_SUBST(archlibdir)
4023 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4024 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4025 ## end of LIBX_BASE, but nothing ever set it.
4026 AC_SUBST(LD_SWITCH_X_SITE)
4027 AC_SUBST(C_SWITCH_X_SITE)
4028 AC_SUBST(GNUSTEP_CFLAGS)
4030 ## Used in lwlib/Makefile.in.
4031 AC_SUBST(X_TOOLKIT_TYPE)
4033 AC_SUBST(ns_appbindir)
4034 AC_SUBST(ns_appresdir)
4036 AC_SUBST(GNU_OBJC_CFLAGS)
4037 AC_SUBST(OTHER_FILES)
4039 if test -n "${term_header}"; then
4040 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4041 [Define to the header for the built-in window system.])
4044 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4045 [Define to the canonical Emacs configuration name.])
4046 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${ac_configure_args}",
4047 [Define to the options passed to configure.])
4048 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4049 define this to include extra configuration information.])
4054 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4055 AC_DEFINE(HAVE_X_WINDOWS, 1,
4056 [Define to 1 if you want to use the X window system.])
4058 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o xgselect.o"
4060 if test "$HAVE_XFT" = "yes"; then
4061 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4062 elif test "$HAVE_FREETYPE" = "yes"; then
4063 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4073 if test "${USE_X_TOOLKIT}" != "none" ; then
4075 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4076 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4077 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4078 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4079 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4083 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4084 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4088 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4089 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4090 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4094 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4095 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4098 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4101 AC_SUBST(WIDGET_OBJ)
4104 case "$USE_X_TOOLKIT" in
4105 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4106 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4107 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4109 AC_SUBST(TOOLKIT_LIBW)
4111 if test "$USE_X_TOOLKIT" = "none"; then
4112 LIBXT_OTHER="\$(LIBXSM)"
4113 OLDXMENU_TARGET="really-oldXMenu"
4115 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4116 OLDXMENU_TARGET="really-lwlib"
4118 AC_SUBST(LIBXT_OTHER)
4120 ## The X Menu stuff is present in the X10 distribution, but missing
4121 ## from X11. If we have X10, just use the installed library;
4122 ## otherwise, use our own copy.
4123 if test "${HAVE_X11}" = "yes" ; then
4124 AC_DEFINE(HAVE_X11, 1,
4125 [Define to 1 if you want to use version 11 of X windows.
4126 Otherwise, Emacs expects to use version 10.])
4128 if test "$USE_X_TOOLKIT" = "none"; then
4129 OLDXMENU="\${oldXMenudir}/libXMenu11.a"
4131 OLDXMENU="\${lwlibdir}/liblw.a"
4133 LIBXMENU="\$(OLDXMENU)"
4134 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4135 OLDXMENU_DEPS="\${OLDXMENU} ../src/\${OLDXMENU}"
4137 ## For a syntactically valid Makefile; not actually used for anything.
4138 ## See comments in src/Makefile.in.
4140 ## FIXME This case (!HAVE_X11 && HAVE_X_WINDOWS) is no longer possible(?).
4141 if test "${HAVE_X_WINDOWS}" = "yes"; then
4150 if test "$HAVE_GTK" = "yes" || test "$HAVE_MENUS" != "yes"; then
4157 AC_SUBST(OLDXMENU_TARGET)
4160 AC_SUBST(LIBX_OTHER)
4161 AC_SUBST(OLDXMENU_DEPS)
4163 if test "${HAVE_MENUS}" = "yes" ; then
4164 AC_DEFINE(HAVE_MENUS, 1,
4165 [Define to 1 if you have mouse menus.
4166 (This is automatic if you use X, but the option to specify it remains.)
4167 It is also defined with other window systems that support xmenu.c.])
4170 if test "${GNU_MALLOC}" = "yes" ; then
4171 AC_DEFINE(GNU_MALLOC, 1,
4172 [Define to 1 if you want to use the GNU memory allocator.])
4176 if test "${REL_ALLOC}" = "yes" ; then
4177 AC_DEFINE(REL_ALLOC, 1,
4178 [Define REL_ALLOC if you want to use the relocating allocator for
4181 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4183 AC_SUBST(RALLOC_OBJ)
4185 if test "$opsys" = "cygwin"; then
4186 CYGWIN_OBJ="sheap.o cygw32.o"
4187 ## Cygwin differs because of its unexec().
4189 POST_ALLOC_OBJ=lastfile.o
4192 PRE_ALLOC_OBJ=lastfile.o
4195 AC_SUBST(CYGWIN_OBJ)
4196 AC_SUBST(PRE_ALLOC_OBJ)
4197 AC_SUBST(POST_ALLOC_OBJ)
4199 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4200 # it temporarily reverts them to their pre-pkg-config values,
4201 # because gnulib needs to work with both src (which uses the
4202 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4203 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4204 # and it therefore needs to run in an environment where LIBS does not
4205 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4206 # for some package unrelated to lib-src.
4209 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4210 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4211 gl_ASSERT_NO_GNULIB_POSIXCHECK
4212 gl_ASSERT_NO_GNULIB_TESTS
4218 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4221 ## The -headerpad option tells ld (see man page) to leave room at the
4222 ## end of the header for adding load commands. Needed for dumping.
4223 ## 0x690 is the total size of 30 segment load commands (at 56
4224 ## each); under Cocoa 31 commands are required.
4225 if test "$HAVE_NS" = "yes"; then
4226 libs_nsgui="-framework AppKit"
4232 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4234 ## This is here because src/Makefile.in did some extra fiddling around
4235 ## with LD_SWITCH_SYSTEM. The cpp logic was:
4236 ## #ifndef LD_SWITCH_SYSTEM
4237 ## #if !defined (__GNUC__) && ((defined (BSD_SYSTEM) && !defined (COFF)))
4238 ## Since all the *bsds define LD_SWITCH_SYSTEM, this simplifies to:
4239 ## not using gcc, darwin.
4240 ## Because this was done in src/Makefile.in, the resulting part of
4241 ## LD_SWITCH_SYSTEM was not used in configure (ie, in ac_link).
4242 ## It therefore seems cleaner to put this in LD_SWITCH_SYSTEM_TEMACS,
4243 ## rather than LD_SWITCH_SYSTEM.
4244 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4245 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4248 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4249 ## find X at run-time.
4250 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4251 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4252 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4253 ## had different values in configure (in ac_link) and src/Makefile.in.
4254 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4255 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4257 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4260 if test "$NS_IMPL_GNUSTEP" = "yes"; then
4261 LD_SWITCH_SYSTEM_TEMACS="${LD_SWITCH_SYSTEM_TEMACS} -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES} -lgnustep-gui -lgnustep-base -lobjc -lpthread"
4264 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4270 ## gnu: GNU needs its own crt0.
4271 aix4-2|cygwin|darwin|gnu|hpux*|irix6-5|sol2*|unixware) ORDINARY_LINK=yes ;;
4273 ## On post 1.3 releases of NetBSD, gcc -nostdlib also clears the
4274 ## library search parth, i.e. it won't search /usr/lib for libc and
4275 ## friends. Using -nostartfiles instead avoids this problem, and
4276 ## will also work on earlier NetBSD releases.
4277 netbsd|openbsd) LD_FIRSTFLAG="-nostartfiles" ;;
4279 ## powerpc*: NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp> says
4280 ## MkLinux/LinuxPPC needs this.
4281 ## s390x-* only supports opsys = gnu-linux so it can be added here.
4283 case "$canonical" in
4284 powerpc*|s390x-*) LD_FIRSTFLAG="-nostdlib" ;;
4290 if test "x$ORDINARY_LINK" = "xyes"; then
4293 AC_DEFINE(ORDINARY_LINK, 1, [Define if the C compiler is the linker.])
4295 ## The system files defining neither ORDINARY_LINK nor LD_FIRSTFLAG are:
4296 ## freebsd, gnu-* not on powerpc*|s390x*.
4297 elif test "x$GCC" = "xyes" && test "x$LD_FIRSTFLAG" = "x"; then
4299 ## Versions of GCC >= 2.0 put their library, libgcc.a, in obscure
4300 ## places that are difficult to figure out at make time. Fortunately,
4301 ## these same versions allow you to pass arbitrary flags on to the
4302 ## linker, so there is no reason not to use it as a linker.
4304 ## Well, it is not quite perfect. The "-nostdlib" keeps GCC from
4305 ## searching for libraries in its internal directories, so we have to
4306 ## ask GCC explicitly where to find libgcc.a (LIB_GCC below).
4307 LD_FIRSTFLAG="-nostdlib"
4310 ## FIXME? What setting of EDIT_LDFLAGS should this have?
4311 test "$NS_IMPL_GNUSTEP" = "yes" && LD_FIRSTFLAG="-rdynamic"
4313 AC_SUBST(LD_FIRSTFLAG)
4316 ## FIXME? The logic here is not precisely the same as that above.
4317 ## There is no check here for a pre-defined LD_FIRSTFLAG.
4318 ## Should we only be setting LIB_GCC if LD ~ -nostdlib?
4320 if test "x$GCC" = "xyes" && test "x$ORDINARY_LINK" != "xyes"; then
4323 freebsd|netbsd|openbsd) LIB_GCC= ;;
4326 ## armin76@gentoo.org reported that the lgcc_s flag is necessary to
4327 ## build on ARM EABI under GNU/Linux. (Bug#5518)
4333 ## FIXME? s/gnu-linux.h used to define LIB_GCC as below, then
4334 ## immediately undefine it again and redefine it to empty.
4335 ## Was the C_SWITCH_X_SITE part really necessary?
4336 ## LIB_GCC=`$CC $C_SWITCH_X_SITE -print-libgcc-file-name`
4342 ## Ask GCC where to find libgcc.a.
4343 *) LIB_GCC=`$CC -print-libgcc-file-name 2> /dev/null` ;;
4348 ## Common for all window systems
4349 if test "$window_system" != "none"; then
4350 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4351 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4354 AC_SUBST(WINDOW_SYSTEM_OBJ)
4356 AH_TOP([/* GNU Emacs site configuration template file.
4358 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2012
4359 Free Software Foundation, Inc.
4361 This file is part of GNU Emacs.
4363 GNU Emacs is free software: you can redistribute it and/or modify
4364 it under the terms of the GNU General Public License as published by
4365 the Free Software Foundation, either version 3 of the License, or
4366 (at your option) any later version.
4368 GNU Emacs is distributed in the hope that it will be useful,
4369 but WITHOUT ANY WARRANTY; without even the implied warranty of
4370 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4371 GNU General Public License for more details.
4373 You should have received a copy of the GNU General Public License
4374 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4377 /* No code in Emacs #includes config.h twice, but some bits of code
4378 intended to work with other packages as well (like gmalloc.c)
4379 think they can include it as many times as they like. */
4380 #ifndef EMACS_CONFIG_H
4381 #define EMACS_CONFIG_H
4384 AH_BOTTOM([#include <conf_post.h>
4386 #endif /* EMACS_CONFIG_H */
4395 #### Report on what we decided to do.
4396 #### Report GTK as a toolkit, even if it doesn't use Xt.
4397 #### It makes printing result more understandable as using GTK sets
4398 #### toolkit_scroll_bars to yes by default.
4399 if test "${HAVE_GTK}" = "yes"; then
4400 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
4404 Configured for \`${canonical}'.
4406 Where should the build process find the source code? ${srcdir}
4407 What compiler should emacs be built with? ${CC} ${CFLAGS}
4408 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4409 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4410 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4411 What window system should Emacs use? ${window_system}
4412 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4414 if test -n "${x_includes}"; then
4415 echo " Where do we find X Windows header files? ${x_includes}"
4417 echo " Where do we find X Windows header files? Standard dirs"
4419 if test -n "${x_libraries}"; then
4420 echo " Where do we find X Windows libraries? ${x_libraries}"
4422 echo " Where do we find X Windows libraries? Standard dirs"
4425 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4426 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4427 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4428 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4429 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4430 echo " Does Emacs use -lpng? ${HAVE_PNG}"
4431 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4432 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4434 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4435 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4436 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4437 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4438 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4439 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4440 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4442 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4443 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4444 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
4445 echo " Does Emacs use -lxft? ${HAVE_XFT}"
4447 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
4450 if test -n "${EMACSDATA}"; then
4451 echo " Environment variable EMACSDATA set to: $EMACSDATA"
4453 if test -n "${EMACSDOC}"; then
4454 echo " Environment variable EMACSDOC set to: $EMACSDOC"
4459 if test "$HAVE_NS" = "yes"; then
4461 echo "You must run \"${MAKE-make} install\" in order to test the built application.
4462 The installed application will go to nextstep/Emacs.app and can be
4463 run or moved from there."
4464 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
4465 echo "The application will be fully self-contained."
4467 echo "The lisp resources for the application will be installed under ${prefix}.
4468 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
4469 to run if these resources are not installed."
4474 if test "${opsys}" = "cygwin"; then
4476 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
4482 # Remove any trailing slashes in these variables.
4483 [test "${prefix}" != NONE &&
4484 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
4485 test "${exec_prefix}" != NONE &&
4486 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
4488 if test "$HAVE_NS" = "yes"; then
4489 if test "$NS_IMPL_GNUSTEP" = yes; then
4490 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
4491 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
4493 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
4494 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
4498 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
4499 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
4500 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
4501 dnl (else you get "no `Makefile.am' found for any configure output").
4502 dnl This will work, but you get a config.status that is not quite right
4503 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
4504 dnl That doesn't have any obvious consequences for Emacs, but on the whole
4505 dnl it seems better to just live with the duplication.
4506 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile"
4508 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
4509 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
4510 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
4511 leim/Makefile nextstep/Makefile])
4513 dnl test/ is not present in release tarfiles.
4514 opt_makefile=test/automated/Makefile
4516 if test -f "$srcdir/$opt_makefile.in"; then
4517 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4518 dnl Again, it's best not to use a variable. Though you can add
4519 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
4520 AC_CONFIG_FILES([test/automated/Makefile])
4524 dnl admin/ may or may not be present.
4525 opt_makefile=admin/unidata/Makefile
4527 if test -f "$srcdir/$opt_makefile.in"; then
4528 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4529 AC_CONFIG_FILES([admin/unidata/Makefile])
4533 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
4535 AC_SUBST(SUBDIR_MAKEFILES_IN)
4537 dnl Make the necessary directories, if they don't exist.
4538 AC_CONFIG_COMMANDS([mkdirs], [
4539 for dir in etc lisp ; do
4540 test -d ${dir} || mkdir ${dir}
4544 dnl You might wonder (I did) why epaths.h is generated by running make,
4545 dnl rather than just letting configure generate it from epaths.in.
4546 dnl One reason is that the various paths are not fully expanded (see above);
4547 dnl eg gamedir=${prefix}/var/games/emacs.
4548 dnl Secondly, the GNU Coding standards require that one should be able
4549 dnl to run `make prefix=/some/where/else' and override the values set
4550 dnl by configure. This also explains the `move-if-change' test and
4551 dnl the use of force in the `epaths-force' rule in Makefile.in.
4552 AC_CONFIG_COMMANDS([epaths], [
4553 echo creating src/epaths.h
4554 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
4555 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS"])
4557 AC_CONFIG_COMMANDS([gdbinit], [
4558 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
4559 echo creating src/.gdbinit
4560 echo "source $srcdir/src/.gdbinit" > src/.gdbinit