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 path 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 $with_compress_info = yes; then
207 AC_ARG_WITH([pkg-config-prog],dnl
208 [AS_HELP_STRING([--with-pkg-config-prog=PATH],
209 [path to pkg-config for finding GTK and librsvg])])
210 if test "X${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=PATH],[path to GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
230 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
231 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
232 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
233 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
235 AC_ARG_ENABLE(ns-self-contained,
236 [AS_HELP_STRING([--disable-ns-self-contained],
237 [disable self contained build under NeXTstep])],
238 EN_NS_SELF_CONTAINED=$enableval,
239 EN_NS_SELF_CONTAINED=yes)
241 AC_ARG_ENABLE(locallisppath,
242 [AS_HELP_STRING([--enable-locallisppath=PATH],
243 [directories Emacs should search for lisp files specific
245 if test "${enableval}" = "no"; then
247 elif test "${enableval}" != "yes"; then
248 locallisppath=${enableval}
251 AC_ARG_ENABLE(checking,
252 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
253 [enable expensive run-time checks. With LIST,
254 enable only specific categories of checks.
255 Categories are: all,yes,no.
256 Flags are: stringbytes, stringoverrun, stringfreelist,
257 xmallocoverrun, conslist, glyphs])],
258 [ac_checking_flags="${enableval}"],[])
259 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
260 for check in $ac_checking_flags
263 # these set all the flags to specific states
264 yes) ac_enable_checking=1 ;;
265 no) ac_enable_checking= ;
266 ac_gc_check_stringbytes= ;
267 ac_gc_check_string_overrun= ;
268 ac_gc_check_string_free_list= ;
269 ac_xmalloc_overrun= ;
270 ac_gc_check_cons_list= ;
272 all) ac_enable_checking=1 ;
273 ac_gc_check_stringbytes=1 ;
274 ac_gc_check_string_overrun=1 ;
275 ac_gc_check_string_free_list=1 ;
276 ac_xmalloc_overrun=1 ;
277 ac_gc_check_cons_list=1 ;
279 # these enable particular checks
280 stringbytes) ac_gc_check_stringbytes=1 ;;
281 stringoverrun) ac_gc_check_string_overrun=1 ;;
282 stringfreelist) ac_gc_check_string_free_list=1 ;;
283 xmallocoverrun) ac_xmalloc_overrun=1 ;;
284 conslist) ac_gc_check_cons_list=1 ;;
285 glyphs) ac_glyphs_debug=1 ;;
286 *) AC_MSG_ERROR(unknown check category $check) ;;
291 if test x$ac_enable_checking != x ; then
292 AC_DEFINE(ENABLE_CHECKING, 1,
293 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
295 if test x$ac_gc_check_stringbytes != x ; then
296 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
297 [Define this temporarily to hunt a bug. If defined, the size of
298 strings is redundantly recorded in sdata structures so that it can
299 be compared to the sizes recorded in Lisp strings.])
301 if test x$ac_gc_check_string_overrun != x ; then
302 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
303 [Define this to check for short string overrun.])
305 if test x$ac_gc_check_string_free_list != x ; then
306 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
307 [Define this to check the string free list.])
309 if test x$ac_xmalloc_overrun != x ; then
310 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
311 [Define this to check for malloc buffer overrun.])
313 if test x$ac_gc_check_cons_list != x ; then
314 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
315 [Define this to check for errors in cons list.])
317 if test x$ac_glyphs_debug != x ; then
318 AC_DEFINE(GLYPH_DEBUG, 1,
319 [Define this to enable glyphs debugging code.])
322 AC_ARG_ENABLE(check-lisp-object-type,
323 [AS_HELP_STRING([--enable-check-lisp-object-type],
324 [enable compile time checks for the Lisp_Object data type.
325 This is useful for development for catching certain types of bugs.])],
326 if test "${enableval}" != "no"; then
327 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
328 [Define this to enable compile time checks for the Lisp_Object data type.])
332 AC_ARG_ENABLE(profiling,
333 [AS_HELP_STRING([--enable-profiling],
334 [build emacs with profiling support.
335 This might not work on all platforms])],
336 [ac_enable_profiling="${enableval}"],[])
337 if test x$ac_enable_profiling != x ; then
338 PROFILING_CFLAGS="-DPROFILING=1 -pg"
342 AC_SUBST(PROFILING_CFLAGS)
344 AC_ARG_ENABLE(autodepend,
345 [AS_HELP_STRING([--enable-autodepend],
346 [automatically generate dependencies to .h-files.
347 Requires GNU Make and Gcc. Enabled if GNU Make and Gcc is
349 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
351 #### Make srcdir absolute, if it isn't already. It's important to
352 #### avoid running the path through pwd unnecessarily, since pwd can
353 #### give you automounter prefixes, which can go away. We do all this
354 #### so Emacs can find its files when run uninstalled.
355 ## Make sure CDPATH doesn't affect cd (in case PWD is relative).
360 ## We may be able to use the $PWD environment variable to make this
361 ## absolute. But sometimes PWD is inaccurate.
362 ## Note: we used to use ${PWD} at the end instead of `pwd`,
363 ## but that tested only for a well-formed and valid PWD,
364 ## it did not object when PWD was well-formed and valid but just wrong.
365 if test ".${PWD}" != "." && test ".`(cd ${PWD} ; sh -c pwd)`" = ".`pwd`" ;
369 srcdir="`(cd ${srcdir}; pwd)`"
372 * ) srcdir="`(cd ${srcdir}; pwd)`" ;;
375 ### Canonicalize the configuration name.
379 configuration=${host_alias-${build_alias-$host}}
381 dnl This used to use changequote, but, apart from `changequote is evil'
382 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
383 dnl the great gob of text. Thus it's not processed for possible expansion.
384 dnl Just make sure the brackets remain balanced.
386 dnl Since Emacs can't find matching pairs of quotes, boundaries are
387 dnl indicated by comments.
391 ### If you add support for a new configuration, add code to this
392 ### switch statement to recognize your configuration name and select
393 ### the appropriate operating system file.
395 ### You would hope that you could choose an s/*.h
396 ### file based on the operating system portion. However, it turns out
397 ### that each s/*.h file is pretty manufacturer-specific.
398 ### So we basically have to have a special case for each
399 ### configuration name.
401 ### As far as handling version numbers on operating systems is
402 ### concerned, make sure things will fail in a fixable way. If
403 ### /etc/MACHINES doesn't say anything about version numbers, be
404 ### prepared to handle anything reasonably. If version numbers
405 ### matter, be sure /etc/MACHINES says something about it.
408 case "${canonical}" in
410 ## GNU/Linux and similar ports
420 ## FreeBSD kernel + glibc based userland
435 ## Apple Darwin / Mac OS X
437 case "${canonical}" in
444 ## Use fink packages if available.
445 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
446 ## if test -d /sw/include && test -d /sw/lib; then
447 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
448 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
452 ## HP 9000 series 700 and 800, running HP/UX
456 hppa*-hp-hpux1[1-9]* )
458 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
462 rs6000-ibm-aix4.[23]* )
465 powerpc-ibm-aix4.[23]* )
468 rs6000-ibm-aix[56]* )
471 powerpc-ibm-aix[56]* )
475 ## Silicon Graphics machines
479 # Without defining _LANGUAGE_C, things get masked out in the headers
480 # so that, for instance, grepping for `free' in stdlib.h fails and
481 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
482 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
487 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
488 | x86_64-*-solaris2* | x86_64-*-sunos5*)
489 case "${canonical}" in
491 amd64-*-*|x86_64-*-*) ;;
495 case "${canonical}" in
496 *-sunos5.6* | *-solaris2.6* )
500 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
502 emacs_check_sunpro_c=yes
504 *-sunos5* | *-solaris* )
506 emacs_check_sunpro_c=yes
509 ## Watch out for a compiler that we know will not work.
510 case "${canonical}" in
511 *-solaris* | *-sunos5* )
512 if [ "x$CC" = x/usr/ucb/cc ]; then
513 ## /usr/ucb/cc doesn't work;
514 ## we should find some other compiler that does work.
522 ## Intel 386 machines where we don't care about the manufacturer.
524 case "${canonical}" in
525 *-cygwin ) opsys=cygwin ;;
526 *-darwin* ) opsys=darwin ;;
527 *-sysv4.2uw* ) opsys=unixware ;;
528 *-sysv5uw* ) opsys=unixware ;;
529 *-sysv5OpenUNIX* ) opsys=unixware ;;
530 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
539 ### If the code above didn't choose an operating system, just choose
540 ### an operating system based on the configuration name. You really
541 ### only want to use this when you have no idea what the right
542 ### operating system is; if you know what operating systems a machine
543 ### runs, it's cleaner to make it explicit in the case statement
545 if test x"${opsys}" = x; then
546 case "${canonical}" in
547 *-gnu* ) opsys=gnu ;;
557 if test $unported = yes; then
558 AC_MSG_ERROR([Emacs hasn't been ported to `${canonical}' systems.
559 Check `etc/MACHINES' for recognized configuration names.])
563 #### Choose a compiler.
565 dnl Sets GCC=yes if using gcc.
569 if test x$GCC = xyes; then
570 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
572 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
575 # Avoid gnulib's tests for O_NOATIME and O_NOFOLLOW, as we don't use them.
576 AC_DEFUN([gl_FCNTL_O_FLAGS])
577 # Avoid gnulib's threadlib module, as we do threads our own way.
578 AC_DEFUN([gl_THREADLIB])
580 # Initialize gnulib right after choosing the compiler.
581 dnl Amongst other things, this sets AR and ARFLAGS.
584 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
585 # if -g3 works and the user does not specify CFLAGS.
586 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
587 if test "$ac_test_CFLAGS" != set; then
590 emacs_g3_CFLAGS='-g3';;
592 emacs_g3_CFLAGS='-g3 -O2';;
596 if test -n "$emacs_g3_CFLAGS"; then
597 emacs_save_CFLAGS=$CFLAGS
598 CFLAGS=$emacs_g3_CFLAGS
599 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
600 [emacs_cv_prog_cc_g3],
601 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
602 [emacs_cv_prog_cc_g3=yes],
603 [emacs_cv_prog_cc_g3=no])])
604 if test $emacs_cv_prog_cc_g3 = yes; then
605 CFLAGS=$emacs_g3_CFLAGS
607 CFLAGS=$emacs_save_CFLAGS
612 AC_ARG_ENABLE([gcc-warnings],
613 [AS_HELP_STRING([--enable-gcc-warnings],
614 [turn on lots of GCC warnings. This is intended for
615 developers, and may generate false alarms when used
616 with older or non-GNU development tools.])],
619 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
621 gl_gcc_warnings=$enableval],
625 AC_ARG_ENABLE(link-time-optimization,
626 [AS_HELP_STRING([--enable-link-time-optimization],
627 [build emacs with link-time optimization.
628 This is supported only for GCC since 4.5.0.])],
629 if test "${enableval}" != "no"; then
630 AC_MSG_CHECKING([whether link-time optimization is supported])
632 if test x$GCC = xyes; then
633 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
634 if test x$CPUS != x; then
640 CFLAGS="$CFLAGS $LTO"
641 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
642 [ac_lto_supported=yes], [ac_lto_supported=no])
645 AC_MSG_RESULT([$ac_lto_supported])
646 if test "$ac_lto_supported" = "yes"; then
647 CFLAGS="$CFLAGS $LTO"
651 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
652 # ------------------------------------------------
653 # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
654 # Otherwise, run RUN-IF-NOT-FOUND.
655 AC_DEFUN([gl_GCC_VERSION_IFELSE],
659 #if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
662 # error "your version of gcc is older than $1.$2"
669 # When compiling with GCC, prefer -isystem to -I when including system
670 # include files, to avoid generating useless diagnostics for the files.
671 if test "$gl_gcc_warnings" != yes; then
676 # This, $nw, is the list of warnings we disable.
679 case $with_x_toolkit in
680 lucid | athena | motif)
681 # Old toolkits mishandle 'const'.
682 nw="$nw -Wwrite-strings"
685 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
688 AC_SUBST([WERROR_CFLAGS])
690 nw="$nw -Waggregate-return" # anachronistic
691 nw="$nw -Wlong-long" # C90 is anachronistic
692 nw="$nw -Wc++-compat" # We don't care about C++ compilers
693 nw="$nw -Wundef" # Warns on '#if GNULIB_FOO' etc in gnulib
694 nw="$nw -Wtraditional" # Warns on #elif which we use often
695 nw="$nw -Wcast-qual" # Too many warnings for now
696 nw="$nw -Wconversion" # Too many warnings for now
697 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
698 nw="$nw -Wsign-conversion" # Too many warnings for now
699 nw="$nw -Woverlength-strings" # Not a problem these days
700 nw="$nw -Wtraditional-conversion" # Too many warnings for now
701 nw="$nw -Wunreachable-code" # so buggy that it's now silently ignored
702 nw="$nw -Wpadded" # Our structs are not padded
703 nw="$nw -Wredundant-decls" # we regularly (re)declare functions
704 nw="$nw -Wlogical-op" # any use of fwrite provokes this
705 nw="$nw -Wformat-nonliteral" # we do this a lot
706 nw="$nw -Wvla" # warnings in gettext.h
707 nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
708 nw="$nw -Wswitch-enum" # Too many warnings for now
709 nw="$nw -Wswitch-default" # Too many warnings for now
710 nw="$nw -Wfloat-equal" # warns about high-quality code
711 nw="$nw -Winline" # OK to ignore 'inline'
712 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
713 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
714 # signed overflow has undefined behavior
715 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
716 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
718 # Emacs doesn't care about shadowing; see
719 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
722 # The following line should be removable at some point.
723 nw="$nw -Wsuggest-attribute=pure"
725 AC_MSG_CHECKING([whether to use -Wstack-protector])
728 [[#if (1 <= __LONG_MAX__ >> 31 >> 31 \
729 && 4 < __GNUC__ + (7 < __GNUC_MINOR__ + (2 <= __GNUC_PATCHLEVEL__)))
732 #error "Not GCC, or GCC before 4.7.2, or 'long int' has < 64 bits."
735 [AC_MSG_RESULT(yes)],
737 nw="$nw -Wstack-protector"])
739 gl_MANYWARN_ALL_GCC([ws])
740 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
744 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
745 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
746 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
747 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
748 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
749 gl_WARN_ADD([-Wno-format-nonliteral])
751 # In spite of excluding -Wlogical-op above, it is enabled, as of
752 # gcc 4.5.0 20090517.
753 gl_WARN_ADD([-Wno-logical-op])
755 gl_WARN_ADD([-fdiagnostics-show-option])
756 gl_WARN_ADD([-funit-at-a-time])
758 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
759 AH_VERBATIM([FORTIFY_SOURCE],
760 [/* Enable compile-time and run-time bounds-checking, and some warnings,
761 without upsetting glibc 2.15+. */
762 #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
763 # define _FORTIFY_SOURCE 2
766 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
768 # We use a slightly smaller set of warning options for lib/.
769 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
771 nw="$nw -Wunused-macros"
773 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
774 AC_SUBST([GNULIB_WARN_CFLAGS])
779 dnl Some other nice autoconf tests.
780 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
783 dnl if test "x$RANLIB" = x; then
788 AC_PATH_PROG(INSTALL_INFO, install-info, :,
789 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
790 dnl Don't use GZIP, which is used by gzip for additional parameters.
791 AC_PATH_PROG(GZIP_PROG, gzip)
793 if test $opsys = gnu-linux; then
794 AC_PATH_PROG(PAXCTL, paxctl,,
795 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
796 if test "X$PAXCTL" != X; then
797 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
798 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
799 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
800 else AC_MSG_RESULT(no); PAXCTL=""; fi])
804 ## Need makeinfo >= 4.7 (?) to build the manuals.
805 AC_PATH_PROG(MAKEINFO, makeinfo, no)
806 dnl By this stage, configure has already checked for egrep and set EGREP,
807 dnl or exited with an error if no egrep was found.
808 if test "$MAKEINFO" != "no" && \
809 test x"`$MAKEINFO --version 2> /dev/null | $EGREP 'texinfo[[^0-9]]*([[1-4]][[0-9]]+|[[5-9]]|4\.[[7-9]]|4\.[[1-6]][[0-9]]+)'`" = x; then
813 ## Makeinfo is unusual. For a released Emacs, the manuals are
814 ## pre-built, and not deleted by the normal clean rules. makeinfo is
815 ## therefore in the category of "special tools" not normally required, which
816 ## configure does not have to check for (eg autoconf itself).
817 ## In a Bazaar checkout on the other hand, the manuals are not included.
818 ## So makeinfo is a requirement to build from Bazaar, and configure
819 ## should test for it as it does for any other build requirement.
820 ## We use the presence of $srcdir/info/emacs to distinguish a release,
821 ## with pre-built manuals, from a Bazaar checkout.
824 if test "$MAKEINFO" = "no"; then
826 if test "x${with_makeinfo}" = "xno"; then
828 elif test ! -e $srcdir/info/emacs; then
829 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
830 source tree does not seem to have pre-built manuals in the `info' directory.
831 Either install a suitable version of makeinfo, or re-run configure
832 with the `--without-makeinfo' option to build without the manuals.] )
835 AC_SUBST(HAVE_MAKEINFO)
837 dnl Just so that there is only a single place we need to edit.
843 dnl Add our options to ac_link now, after it is set up.
845 if test x$GCC = xyes; then
846 test "x$GCC_LINK_TEST_OPTIONS" != x && \
847 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
849 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
850 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
853 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
854 dnl If we can link with the flag, it shouldn't do any harm anyhow.
855 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
856 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
857 dnl if not built to support GNU ld.
859 late_LDFLAGS=$LDFLAGS
860 if test x$GCC = xyes; then
861 LDFLAGS="$LDFLAGS -Wl,-znocombreloc"
863 LDFLAGS="$LDFLAGS -znocombreloc"
866 AC_MSG_CHECKING([for -znocombreloc])
867 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
868 [AC_MSG_RESULT(yes)],
869 LDFLAGS=$late_LDFLAGS
873 dnl The function dump-emacs will not be defined and temacs will do
874 dnl (load "loadup") automatically unless told otherwise.
875 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
877 your-opsys-here) CANNOT_DUMP=yes ;;
880 test "$CANNOT_DUMP" = "yes" && \
881 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
883 AC_SUBST(CANNOT_DUMP)
888 # MSDOS uses unexcoff.o
889 # MSWindows uses unexw32.o
897 UNEXEC_OBJ=unexmacosx.o
900 UNEXEC_OBJ=unexhp9k800.o
903 # Use the Solaris dldump() function, called from unexsol.c, to dump
904 # emacs, instead of the generic ELF dump code found in unexelf.c.
905 # The resulting binary has a complete symbol table, and is better
906 # for debugging and other observability tools (debuggers, pstack, etc).
908 # If you encounter a problem using dldump(), please consider sending
909 # a message to the OpenSolaris tools-linking mailing list:
910 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
912 # It is likely that dldump() works with older Solaris too, but this has
913 # not been tested, so for now this change is for Solaris 10 or newer.
921 ## Let `ld' find image libs and similar things in /usr/local/lib.
922 ## The system compiler, GCC, has apparently been modified to not
923 ## look there, contrary to what a stock GCC would do.
924 ### It's not our place to do this. See bug#10313#17.
925 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
930 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
931 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
935 ### It's not our place to do this. See bug#10313#17.
936 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
941 ## Han Boetes <han@mijncomputer.nl> says this is necessary,
942 ## otherwise Emacs dumps core on elf systems.
943 LD_SWITCH_SYSTEM="-Z"
946 AC_SUBST(LD_SWITCH_SYSTEM)
948 ac_link="$ac_link $LD_SWITCH_SYSTEM"
950 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
951 ## which has not been defined yet. When this was handled with cpp,
952 ## it was expanded to null when configure sourced the s/*.h file.
953 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
954 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
955 ## (or somesuch), but because it is supposed to go at the _front_
956 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
957 ## Compare with the gnu-linux case below, which added to the end
958 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
959 ## LD_SWITCH_SYSTEM_TEMACS.
962 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
969 AC_CHECK_DECL([__ELF__])
970 if test "$ac_cv_have_decl___ELF__" = "yes"; then
971 ## With ELF, make sure that all common symbols get allocated to in the
972 ## data section. Otherwise, the dump of temacs may miss variables in
973 ## the shared library that have been initialized. For example, with
974 ## GNU libc, __malloc_initialized would normally be resolved to the
975 ## shared library's .bss section, which is fatal.
976 if test "x$GCC" = "xyes"; then
977 C_SWITCH_MACHINE="-fno-common"
979 AC_MSG_ERROR([What gives? Fix me if DEC Unix supports ELF now.])
982 UNEXEC_OBJ=unexalpha.o
986 AC_SUBST(C_SWITCH_MACHINE)
991 ## Some programs in src produce warnings saying certain subprograms
992 ## are too complex and need a MAXMEM value greater than 2000 for
993 ## additional optimization. --nils@exp-math.uni-essen.de
994 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
995 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
996 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
997 ## It is redundant in glibc2, since we define _GNU_SOURCE.
998 AC_SUBST(C_SWITCH_SYSTEM)
1003 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1004 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1006 freebsd) LIBS_SYSTEM="-lutil" ;;
1008 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1010 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1012 ## Motif needs -lgen.
1013 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1015 AC_SUBST(LIBS_SYSTEM)
1018 ### Make sure subsequent tests use flags consistent with the build flags.
1020 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1021 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1023 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1026 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C89 or better.
1027 AC_DEFUN([AC_TYPE_SIZE_T])
1028 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1029 AC_DEFUN([AC_TYPE_UID_T])
1035 dnl Current possibilities handled by sed (aix4-2 -> aix,
1036 dnl gnu-linux -> gnu/linux, etc.):
1037 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1038 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1039 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1041 dnl NB do not use CRT_DIR unquoted here, since it might not be set yet.
1045 START_FILES='pre-crt0.o'
1048 ## Adding -lm confuses the dynamic linker, so omit it.
1050 START_FILES='pre-crt0.o'
1053 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtn.o'
1054 START_FILES='pre-crt0.o $(CRT_DIR)/crt1.o $(CRT_DIR)/crti.o'
1055 SYSTEM_TYPE=berkeley-unix
1057 gnu-linux | gnu-kfreebsd )
1058 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtn.o'
1059 START_FILES='pre-crt0.o $(CRT_DIR)/crt1.o $(CRT_DIR)/crti.o'
1061 hpux10-20 | hpux11 )
1063 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o'
1065 dnl NB this may be adjusted below.
1067 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o'
1068 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o $(CRT_DIR)/crtbegin.o'
1069 SYSTEM_TYPE=berkeley-unix
1073 SYSTEM_TYPE=usg-unix-v
1079 AC_SUBST(START_FILES)
1080 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1081 [The type of system you are compiling for; sets `system-type'.])
1083 dnl Not all platforms use crtn.o files. Check if the current one does.
1086 for file in x $LIB_STANDARD $START_FILES; do
1088 *CRT_DIR*) crt_files="$crt_files `echo $file | sed -e 's|.*/||'`" ;;
1092 if test "x$crt_files" != x; then
1094 ## If user specified a crt-dir, use that unconditionally.
1097 if test "X$CRT_DIR" = "X"; then
1099 CRT_DIR=/usr/lib # default
1101 case "$canonical" in
1102 x86_64-*-linux-gnu* | s390x-*-linux-gnu*)
1103 ## On x86-64 and s390x GNU/Linux distributions, the standard library
1104 ## can be in a variety of places. We only try /usr/lib64 and /usr/lib.
1105 ## For anything else (eg /usr/lib32), it is up the user to specify
1106 ## the location (bug#5655).
1107 ## Test for crtn.o, not just the directory, because sometimes the
1108 ## directory exists but does not have the relevant files (bug#1287).
1109 ## FIXME better to test for binary compatibility somehow.
1110 test -e /usr/lib64/crtn.o && CRT_DIR=/usr/lib64
1113 powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*) CRT_DIR=/usr/lib64 ;;
1117 hpux10-20) CRT_DIR=/lib ;;
1120 test "x${GCC}" = xyes && crt_gcc=yes
1126 for file in $crt_files; do
1128 ## If we're using gcc, try to determine it automatically by asking
1129 ## gcc. [If this doesn't work, CRT_DIR will remain at the
1130 ## system-dependent default from above.]
1131 if test $crt_gcc = yes && test ! -e $CRT_DIR/$file; then
1133 crt_file=`$CC --print-file-name=$file 2>/dev/null`
1136 CRT_DIR=`AS_DIRNAME(["$crt_file"])`
1141 dnl We expect all the files to be in a single directory, so after the
1142 dnl first there is no point asking gcc.
1145 test -e $CRT_DIR/$file || crt_missing="$crt_missing $file"
1148 test "x$crt_missing" = x || \
1149 AC_MSG_ERROR([Required file(s) not found:$crt_missing
1150 Try using the --with-crt-dir option.])
1152 fi # crt_files != ""
1158 if test -f $CRT_DIR/crti.o; then
1160 test -f $CRT_DIR/crtn.o || \
1161 AC_MSG_ERROR([Required file not found: crtn.o])
1163 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o $(CRT_DIR)/crtn.o'
1164 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o $(CRT_DIR)/crti.o $(CRT_DIR)/crtbegin.o'
1170 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1171 pre_PKG_CONFIG_LIBS=$LIBS
1173 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
1175 dnl This function definition taken from Gnome 2.0
1176 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
1177 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
1178 dnl also defines GSTUFF_PKG_ERRORS on error
1179 AC_DEFUN([PKG_CHECK_MODULES], [
1182 if test "$PKG_CONFIG" = "no" ; then
1183 ifelse([$4], , [AC_MSG_ERROR([
1184 *** The pkg-config script could not be found. Make sure it is in your path, or give the full path to 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])
1186 PKG_CONFIG_MIN_VERSION=0.9.0
1187 if $PKG_CONFIG --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
1188 AC_MSG_CHECKING(for $2)
1190 if $PKG_CONFIG --exists "$2" 2>&AS_MESSAGE_LOG_FD &&
1191 $1_CFLAGS=`$PKG_CONFIG --cflags "$2" 2>&AS_MESSAGE_LOG_FD` &&
1192 $1_LIBS=`$PKG_CONFIG --libs "$2" 2>&AS_MESSAGE_LOG_FD`; then
1199 $1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1200 $1_LIBS=`AS_ECHO(["$$1_LIBS"]) | sed -e 's,///*,/,g'`
1201 AC_MSG_RESULT([yes CFLAGS='$$1_CFLAGS' LIBS='$$1_LIBS'])
1207 ## If we have a custom action on failure, don't print errors, but
1208 ## do set a variable so people can do so. Do it in a subshell
1209 ## to capture any diagnostics in invoking pkg-config.
1210 $1_PKG_ERRORS=`($PKG_CONFIG --print-errors "$2") 2>&1`
1211 ifelse([$4], ,echo "$$1_PKG_ERRORS",)
1217 echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
1218 echo "*** See http://www.freedesktop.org/software/pkgconfig"
1222 if test $succeeded = yes; then
1223 ifelse([$3], , :, [$3])
1225 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])
1230 if test "${with_sound}" != "no"; then
1231 # Sound support for GNU/Linux and the free BSDs.
1232 AC_CHECK_HEADERS(machine/soundcard.h sys/soundcard.h soundcard.h,
1233 have_sound_header=yes)
1234 # Emulation library used on NetBSD.
1235 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1239 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1240 PKG_CHECK_MODULES(ALSA, $ALSA_MODULES, HAVE_ALSA=yes, HAVE_ALSA=no)
1241 if test $HAVE_ALSA = yes; then
1242 SAVE_CFLAGS="$CFLAGS"
1244 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1245 LIBS="$ALSA_LIBS $LIBS"
1246 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1247 emacs_alsa_normal=yes,
1248 emacs_alsa_normal=no)
1249 if test "$emacs_alsa_normal" != yes; then
1250 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1251 [[snd_lib_error_set_handler (0);]])],
1252 emacs_alsa_subdir=yes,
1253 emacs_alsa_subdir=no)
1254 if test "$emacs_alsa_subdir" != yes; then
1255 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1257 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1260 CFLAGS="$SAVE_CFLAGS"
1262 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1263 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1264 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1267 dnl Define HAVE_SOUND if we have sound support. We know it works and
1268 dnl compiles only on the specified platforms. For others, it
1269 dnl probably doesn't make sense to try.
1270 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1272 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1273 gnu-linux|freebsd|netbsd)
1274 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1279 AC_SUBST(CFLAGS_SOUND)
1282 dnl checks for header files
1283 AC_CHECK_HEADERS_ONCE(
1284 linux/version.h sys/systeminfo.h
1286 sys/vlimit.h sys/resource.h
1287 sys/utsname.h pwd.h utmp.h dirent.h util.h)
1289 AC_MSG_CHECKING(if personality LINUX32 can be set)
1290 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1291 emacs_cv_personality_linux32=yes,
1292 emacs_cv_personality_linux32=no)
1293 AC_MSG_RESULT($emacs_cv_personality_linux32)
1295 if test $emacs_cv_personality_linux32 = yes; then
1296 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1297 [Define to 1 if personality LINUX32 can be set.])
1300 dnl On Solaris 8 there's a compilation warning for term.h because
1301 dnl it doesn't define `bool'.
1302 AC_CHECK_HEADERS(term.h, , , -)
1304 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1306 if test $ac_cv_have_decl_sys_siglist != yes; then
1307 # For Tru64, at least:
1308 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1310 if test $ac_cv_have_decl___sys_siglist = yes; then
1311 AC_DEFINE(sys_siglist, __sys_siglist,
1312 [Define to any substitute for sys_siglist.])
1317 dnl Check for speed_t typedef.
1318 AC_CACHE_CHECK(for speed_t, emacs_cv_speed_t,
1319 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <termios.h>]], [[speed_t x = 1;]])],
1320 emacs_cv_speed_t=yes, emacs_cv_speed_t=no)])
1321 if test $emacs_cv_speed_t = yes; then
1322 AC_DEFINE(HAVE_SPEED_T, 1,
1323 [Define to 1 if `speed_t' is declared by <termios.h>.])
1326 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1327 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1328 #if HAVE_SYS_SOCKET_H
1329 #include <sys/socket.h>
1331 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1332 #if HAVE_SYS_SOCKET_H
1333 #include <sys/socket.h>
1335 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1336 #if HAVE_SYS_SOCKET_H
1337 #include <sys/socket.h>
1340 dnl checks for structure members
1341 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1342 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1343 struct ifreq.ifr_addr,
1344 struct ifreq.ifr_addr.sa_len], , ,
1345 [AC_INCLUDES_DEFAULT
1346 #if HAVE_SYS_SOCKET_H
1347 #include <sys/socket.h>
1353 dnl Check for endianness.
1354 dnl AC_C_BIGENDIAN is done by gnulib.
1356 dnl check for Make feature
1357 dnl AC_PROG_MAKE_SET is done by Automake.
1362 dnl check for GNU Make if we have GCC and autodepend is on.
1363 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1364 AC_MSG_CHECKING([whether we are using GNU Make])
1366 testval=`${MAKE-make} --version 2>/dev/null | grep 'GNU Make'`
1367 if test "x$testval" != x; then
1370 ac_enable_autodepend=no
1372 AC_MSG_RESULT([$HAVE_GNU_MAKE])
1373 if test $HAVE_GNU_MAKE = yes; then
1374 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1375 SAVE_CFLAGS="$CFLAGS"
1376 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1377 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1378 CFLAGS="$SAVE_CFLAGS"
1379 test -f deps.d || ac_enable_autodepend=no
1381 AC_MSG_RESULT([$ac_enable_autodepend])
1383 if test $ac_enable_autodepend = yes; then
1384 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1385 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1386 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1387 deps_frag=autodeps.mk
1390 deps_frag=$srcdir/src/$deps_frag
1393 AC_SUBST_FILE(deps_frag)
1396 lisp_frag=$srcdir/src/lisp.mk
1397 AC_SUBST_FILE(lisp_frag)
1400 dnl checks for operating system services
1401 AC_SYS_LONG_FILE_NAMES
1403 #### Choose a window system.
1405 ## We leave window_system equal to none if
1406 ## we end up building without one. Any new window system should
1407 ## set window_system to an appropriate value and add objects to
1408 ## window-system-specific substs.
1412 if test "$no_x" != yes; then
1416 LD_SWITCH_X_SITE_RPATH=
1417 if test "${x_libraries}" != NONE; then
1418 if test -n "${x_libraries}"; then
1419 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1420 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1422 x_default_search_path=""
1423 x_search_path=${x_libraries}
1424 if test -z "${x_search_path}"; then
1425 x_search_path=/usr/lib
1427 for x_library in `echo ${x_search_path}: | \
1428 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1430 ${x_library}/X11/%L/%T/%N%C%S:\
1431 ${x_library}/X11/%l/%T/%N%C%S:\
1432 ${x_library}/X11/%T/%N%C%S:\
1433 ${x_library}/X11/%L/%T/%N%S:\
1434 ${x_library}/X11/%l/%T/%N%S:\
1435 ${x_library}/X11/%T/%N%S"
1436 if test x"${x_default_search_path}" = x; then
1437 x_default_search_path=${x_search_path}
1439 x_default_search_path="${x_search_path}:${x_default_search_path}"
1443 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1445 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1446 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1449 if test x"${x_includes}" = x; then
1450 bitmapdir=/usr/include/X11/bitmaps
1452 # accumulate include directories that have X11 bitmap subdirectories
1454 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1455 if test -d "${bmd}/X11/bitmaps"; then
1456 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1458 if test -d "${bmd}/bitmaps"; then
1459 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1462 if test ${bmd_acc} != "dummyval"; then
1463 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1470 tmp_CPPFLAGS="$CPPFLAGS"
1471 tmp_CFLAGS="$CFLAGS"
1472 CPPFLAGS="$CPPFLAGS -x objective-c"
1473 CFLAGS="$CFLAGS -x objective-c"
1474 TEMACS_LDFLAGS2="\${LDFLAGS}"
1476 if test "${with_ns}" != no; then
1477 if test "${opsys}" = darwin; then
1479 ns_appdir=`pwd`/nextstep/Emacs.app
1480 ns_appbindir=${ns_appdir}/Contents/MacOS
1481 ns_appresdir=${ns_appdir}/Contents/Resources
1482 ns_appsrc=Cocoa/Emacs.base
1483 elif test -f $GNUSTEP_CONFIG_FILE; then
1485 ns_appdir=`pwd`/nextstep/Emacs.app
1486 ns_appbindir=${ns_appdir}
1487 ns_appresdir=${ns_appdir}/Resources
1488 ns_appsrc=GNUstep/Emacs.base
1489 dnl FIXME sourcing this several times in subshells seems inefficient.
1490 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1491 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1492 dnl I seemed to need these as well with GNUstep-startup 0.25.
1493 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1494 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1495 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1496 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1497 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1498 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1499 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1500 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1501 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1505 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1506 dnl If they had chosen to either define it or not, we could have
1507 dnl just used AC_CHECK_DECL here.
1508 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1509 emacs_cv_objc_exceptions,
1510 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1511 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1515 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1516 if test $emacs_cv_objc_exceptions = yes; then
1517 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1518 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1519 [Define if GNUstep uses ObjC exceptions.])
1520 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1524 dnl This is only used while we test the NS headers, it gets reset below.
1525 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1527 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1528 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1529 files are missing or cannot be compiled.])])
1531 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1533 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1534 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
1537 #error "OSX 10.4 or newer required"
1541 ns_osx_have_104=yes,
1543 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1545 ns_have_nsinteger=yes,
1546 ns_have_nsinteger=no)
1547 if test $ns_osx_have_104 = no; then
1548 AC_MSG_ERROR([`OSX 10.4 or newer is required']);
1550 if test $ns_have_nsinteger = yes; then
1551 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1555 AC_SUBST(TEMACS_LDFLAGS2)
1557 INSTALL_ARCH_INDEP_EXTRA=install-etc
1558 ns_self_contained=no
1561 if test "${HAVE_NS}" = yes; then
1562 if test "$with_toolkit_scroll_bars" = "no"; then
1563 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1566 window_system=nextstep
1567 # set up packaging dirs
1568 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1569 ns_self_contained=yes
1570 prefix=${ns_appresdir}
1571 exec_prefix=${ns_appbindir}
1572 dnl This one isn't really used, only archlibdir is.
1573 libexecdir="\${ns_appbindir}/libexec"
1574 archlibdir="\${ns_appbindir}/libexec"
1575 docdir="\${ns_appresdir}/etc"
1576 etcdir="\${ns_appresdir}/etc"
1577 dnl FIXME maybe set datarootdir instead.
1578 dnl That would also get applications, icons, man.
1579 infodir="\${ns_appresdir}/info"
1580 mandir="\${ns_appresdir}/man"
1581 lispdir="\${ns_appresdir}/lisp"
1582 leimdir="\${ns_appresdir}/leim"
1583 INSTALL_ARCH_INDEP_EXTRA=
1585 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o"
1587 CFLAGS="$tmp_CFLAGS"
1588 CPPFLAGS="$tmp_CPPFLAGS"
1589 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1590 AC_SUBST(ns_self_contained)
1592 AC_SUBST(NS_OBJC_OBJ)
1593 AC_SUBST(LIB_STANDARD)
1598 if test "${with_w32}" != no; then
1599 if test "${opsys}" != "cygwin"; then
1600 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin.])
1602 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1603 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1604 cannot be found.])])
1605 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1606 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1607 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1608 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1609 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1614 if test "${HAVE_W32}" = "yes"; then
1619 ## $window_system is now set to the window system we will
1627 case "${window_system}" in
1632 case "${with_x_toolkit}" in
1633 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1634 motif ) USE_X_TOOLKIT=MOTIF ;;
1636 term_header=gtkutil.h
1637 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1638 dnl USE_X_TOOLKIT is set.
1639 USE_X_TOOLKIT=none ;;
1640 gtk2 ) with_gtk2=yes
1641 term_header=gtkutil.h
1642 USE_X_TOOLKIT=none ;;
1643 gtk3 ) with_gtk3=yes
1644 term_header=gtkutil.h
1645 USE_X_TOOLKIT=none ;;
1646 no ) USE_X_TOOLKIT=none ;;
1647 dnl If user did not say whether to use a toolkit, make this decision later:
1648 dnl use the toolkit if we have gtk, or X11R5 or newer.
1649 * ) USE_X_TOOLKIT=maybe ;;
1653 term_header=nsterm.h
1656 term_header=w32term.h
1660 if test -n "${term_header}"; then
1661 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
1662 [Define to the header for the built-in window system.])
1665 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1666 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1667 if test "$HAVE_XSERVER" = true ||
1668 test -n "$DISPLAY" ||
1669 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1670 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1671 were found. You should install the relevant development files for X
1672 and for the toolkit you want, such as Gtk+, Lesstif or Motif. Also make
1673 sure you have development files for image handling, i.e.
1674 tiff, gif, jpeg, png and xpm.
1675 If you are sure you want Emacs compiled without X window support, pass
1681 ### If we're using X11, we should use the X menu package.
1684 yes ) HAVE_MENUS=yes ;;
1687 # Does the opsystem file prohibit the use of the GNU malloc?
1688 # Assume not, until told otherwise.
1692 [whether malloc is Doug Lea style],
1693 [emacs_cv_var_doug_lea_malloc],
1696 [[#include <malloc.h>
1697 static void hook (void) {}]],
1698 [[malloc_set_state (malloc_get_state ());
1699 __after_morecore_hook = hook;
1700 __malloc_initialize_hook = hook;]])],
1701 [emacs_cv_var_doug_lea_malloc=yes],
1702 [emacs_cv_var_doug_lea_malloc=no])])
1703 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1706 dnl See comments in aix4-2.h about maybe using system malloc there.
1709 ## darwin ld insists on the use of malloc routines in the System framework.
1710 darwin|sol2-10) system_malloc=yes ;;
1713 if test "${system_malloc}" = "yes"; then
1714 AC_DEFINE(SYSTEM_MALLOC, 1, [Define to use system malloc.])
1717 (The GNU allocators don't work with this system configuration.)"
1721 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1722 VMLIMIT_OBJ=vm-limit.o
1724 AC_SUBST(GMALLOC_OBJ)
1725 AC_SUBST(VMLIMIT_OBJ)
1727 if test "$doug_lea_malloc" = "yes" ; then
1728 if test "$GNU_MALLOC" = yes ; then
1730 (Using Doug Lea's new malloc from the GNU C Library.)"
1732 AC_DEFINE(DOUG_LEA_MALLOC, 1,
1733 [Define to 1 if you are using the GNU C Library.])
1735 ## Use mmap directly for allocating larger buffers.
1736 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
1737 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
1738 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
1740 gnu*) REL_ALLOC=no ;;
1744 if test x"${REL_ALLOC}" = x; then
1745 REL_ALLOC=${GNU_MALLOC}
1748 use_mmap_for_buffers=no
1750 cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
1754 if test $use_mmap_for_buffers = yes; then
1755 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
1759 LIBS="$LIBS_SYSTEM $LIBS"
1761 dnl If found, this defines HAVE_LIBDNET, which m/pmax.h checks,
1762 dnl and also adds -ldnet to LIBS, which Autoconf uses for checks.
1763 AC_CHECK_LIB(dnet, dnet_ntoa)
1764 dnl This causes -lresolv to get used in subsequent tests,
1765 dnl which causes failures on some systems such as HPUX 9.
1766 dnl AC_CHECK_LIB(resolv, gethostbyname)
1768 dnl FIXME replace main with a function we actually want from this library.
1769 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
1771 dnl Check if pthreads is available.
1773 AC_CHECK_HEADERS_ONCE(pthread.h)
1774 if test "$ac_cv_header_pthread_h"; then
1775 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
1776 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
1777 dnl testing for pthread_self if Emacs uses gmalloc.c.
1778 if test "$GMALLOC_OBJ" = gmalloc.o; then
1779 emacs_pthread_function=pthread_atfork
1781 emacs_pthread_function=pthread_self
1783 AC_CHECK_LIB(pthread, $emacs_pthread_function, HAVE_PTHREAD=yes)
1785 if test "$HAVE_PTHREAD" = yes; then
1786 case "${canonical}" in
1788 *) LIB_PTHREAD="-lpthread"
1789 LIBS="$LIB_PTHREAD $LIBS" ;;
1791 AC_DEFINE(HAVE_PTHREAD, 1, [Define to 1 if you have pthread (-lpthread).])
1793 AC_SUBST([LIB_PTHREAD])
1795 AC_CHECK_LIB(pthreads, cma_open)
1797 ## Note: when using cpp in s/aix4.2.h, this definition depended on
1798 ## HAVE_LIBPTHREADS. That was not defined earlier in configure when
1799 ## the system file was sourced. Hence the value of LIBS_SYSTEM
1800 ## added to LIBS in configure would never contain the pthreads part,
1801 ## but the value used in Makefiles might. FIXME?
1803 ## -lpthreads seems to be necessary for Xlib in X11R6, and should
1804 ## be harmless on older versions of X where it happens to exist.
1805 test "$opsys" = "aix4-2" && \
1806 test $ac_cv_lib_pthreads_cma_open = yes && \
1807 LIBS_SYSTEM="$LIBS_SYSTEM -lpthreads"
1809 dnl Check for need for bigtoc support on IBM AIX
1813 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1815 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1816 *) gdb_cv_bigtoc=-bbigtoc ;;
1819 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1820 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
1825 # Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
1826 # used for the tests that follow. We set them back to REAL_CFLAGS and
1827 # REAL_CPPFLAGS later on.
1829 REAL_CFLAGS="$CFLAGS"
1830 REAL_CPPFLAGS="$CPPFLAGS"
1832 if test "${HAVE_X11}" = "yes"; then
1833 DEFS="$C_SWITCH_X_SITE $DEFS"
1834 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
1836 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
1837 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
1839 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
1840 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
1841 # but it's more convenient here to set LD_RUN_PATH since this
1842 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
1843 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
1844 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
1848 if test "${opsys}" = "gnu-linux"; then
1849 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
1850 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1851 [[XOpenDisplay ("foo");]])],
1852 [xgnu_linux_first_failure=no],
1853 [xgnu_linux_first_failure=yes])
1854 if test "${xgnu_linux_first_failure}" = "yes"; then
1855 OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
1856 OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
1857 OLD_CPPFLAGS="$CPPFLAGS"
1859 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
1860 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
1861 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
1862 LIBS="$LIBS -b i486-linuxaout"
1863 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1864 [[XOpenDisplay ("foo");]])],
1865 [xgnu_linux_second_failure=no],
1866 [xgnu_linux_second_failure=yes])
1867 if test "${xgnu_linux_second_failure}" = "yes"; then
1868 # If we get the same failure with -b, there is no use adding -b.
1869 # So take it out. This plays safe.
1870 LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
1871 C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
1872 CPPFLAGS="$OLD_CPPFLAGS"
1883 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
1884 # header files included from there.
1885 AC_MSG_CHECKING(for Xkb)
1886 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
1887 #include <X11/XKBlib.h>]],
1888 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
1889 emacs_xkb=yes, emacs_xkb=no)
1890 AC_MSG_RESULT($emacs_xkb)
1891 if test $emacs_xkb = yes; then
1892 AC_DEFINE(HAVE_XKBGETKEYBOARD, 1, [Define to 1 if you have the XkbGetKeyboard function.])
1895 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
1896 XScreenNumberOfScreen)
1899 if test "${window_system}" = "x11"; then
1900 AC_MSG_CHECKING(X11 version 6)
1901 AC_CACHE_VAL(emacs_cv_x11_version_6,
1902 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
1903 [[#if XlibSpecificationRelease < 6
1906 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
1907 if test $emacs_cv_x11_version_6 = yes; then
1908 AC_MSG_RESULT(6 or newer)
1909 AC_DEFINE(HAVE_X11R6, 1,
1910 [Define to 1 if you have the X11R6 or newer version of Xlib.])
1911 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
1912 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
1916 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
1917 [Define if you have usable X11R6-style XIM support.])
1921 AC_MSG_RESULT(before 6)
1926 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
1928 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes"; then
1929 if test "${with_rsvg}" != "no"; then
1930 RSVG_REQUIRED=2.11.0
1931 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
1933 PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, HAVE_RSVG=yes, :)
1934 AC_SUBST(RSVG_CFLAGS)
1937 if test $HAVE_RSVG = yes; then
1938 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
1939 CFLAGS="$CFLAGS $RSVG_CFLAGS"
1940 LIBS="$RSVG_LIBS $LIBS"
1946 if test "${HAVE_X11}" = "yes"; then
1947 if test "${with_imagemagick}" != "no"; then
1948 ## 6.2.8 is the earliest version known to work, but earlier versions
1949 ## might work - let us know if you find one.
1950 ## 6.0.7 does not work. See bug#7955.
1951 IMAGEMAGICK_MODULE="Wand >= 6.2.8"
1952 PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
1953 AC_SUBST(IMAGEMAGICK_CFLAGS)
1954 AC_SUBST(IMAGEMAGICK_LIBS)
1956 if test $HAVE_IMAGEMAGICK = yes; then
1957 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
1958 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
1959 LIBS="$IMAGEMAGICK_LIBS $LIBS"
1960 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
1970 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
1973 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1975 dnl Checks for libraries.
1976 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1977 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
1978 AC_MSG_ERROR($GTK_PKG_ERRORS)
1980 if test "$pkg_check_gtk" = "yes"; then
1981 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
1982 GTK_OBJ=emacsgtkfixed.o
1983 term_header=gtkutil.h
1984 USE_GTK_TOOLKIT="GTK3"
1987 gtk3_pkg_errors="$GTK_PKG_ERRORS "
1991 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
1994 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1996 dnl Checks for libraries.
1997 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1998 if test "$pkg_check_gtk" = "no" &&
1999 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2001 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2003 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2006 if test x"$pkg_check_gtk" = xyes; then
2008 AC_SUBST(GTK_CFLAGS)
2010 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2011 CFLAGS="$CFLAGS $GTK_CFLAGS"
2012 LIBS="$GTK_LIBS $LIBS"
2013 dnl Try to compile a simple GTK program.
2015 AC_CHECK_FUNCS(gtk_main, GTK_COMPILES=yes)
2016 if test "${GTK_COMPILES}" != "yes"; then
2017 if test "$USE_X_TOOLKIT" != "maybe"; then
2018 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2022 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2023 GTK_OBJ="gtkutil.o $GTK_OBJ"
2025 if $PKG_CONFIG --atleast-version=2.10 gtk+-2.0; then
2028 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2029 closing open displays. This is no problem if you just use
2030 one display, but if you use more than one and close one of them
2040 if test "${HAVE_GTK}" = "yes"; then
2042 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2043 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2044 if test "$with_toolkit_scroll_bars" != no; then
2045 with_toolkit_scroll_bars=yes
2048 dnl Check if we have the old file selection dialog declared and
2049 dnl in the link library. In 2.x it may be in the library,
2050 dnl but not declared if deprecated featured has been selected out.
2051 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2052 HAVE_GTK_FILE_SELECTION=no
2053 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2054 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2055 #include <gtk/gtk.h>])
2056 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2057 AC_CHECK_FUNCS(gtk_file_selection_new)
2061 dnl Check for functions introduced in 2.14 and later.
2062 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2063 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2064 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2065 gtk_orientable_set_orientation \
2066 gtk_window_set_has_resize_grip)
2068 term_header=gtkutil.h
2071 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2072 dnl other platforms.
2075 if test "${with_dbus}" = "yes"; then
2076 PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
2077 if test "$HAVE_DBUS" = yes; then
2078 LIBS="$LIBS $DBUS_LIBS"
2079 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2080 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2081 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2083 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2084 dbus_type_is_valid \
2085 dbus_validate_bus_name \
2086 dbus_validate_path \
2087 dbus_validate_interface \
2088 dbus_validate_member)
2094 dnl GSettings has been tested under GNU/Linux only.
2096 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2097 PKG_CHECK_MODULES(GSETTINGS, gio-2.0 >= 2.26, HAVE_GSETTINGS=yes, HAVE_GSETTINGS=no)
2098 if test "$HAVE_GSETTINGS" = "yes"; then
2099 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2100 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2101 SETTINGS_LIBS="$GSETTINGS_LIBS"
2105 dnl GConf has been tested under GNU/Linux only.
2106 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2108 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2109 PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
2110 if test "$HAVE_GCONF" = yes; then
2111 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2112 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2113 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2114 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2118 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2119 PKG_CHECK_MODULES(GOBJECT, gobject-2.0 >= 2.0, HAVE_GOBJECT=yes, HAVE_GOBJECT=no)
2120 if test "$HAVE_GOBJECT" = "yes"; then
2121 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2122 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2124 SAVE_CFLAGS="$CFLAGS"
2126 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2127 LIBS="$SETTINGS_LIBS $LIBS"
2128 AC_CHECK_FUNCS([g_type_init])
2129 CFLAGS="$SAVE_CFLAGS"
2132 AC_SUBST(SETTINGS_CFLAGS)
2133 AC_SUBST(SETTINGS_LIBS)
2136 dnl SELinux is available for GNU/Linux only.
2139 if test "${with_selinux}" = "yes"; then
2140 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2141 if test "$HAVE_LIBSELINUX" = yes; then
2142 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2143 LIBSELINUX_LIBS=-lselinux
2146 AC_SUBST(LIBSELINUX_LIBS)
2149 HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=no
2150 if test "${with_gnutls}" = "yes" ; then
2151 PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6], HAVE_GNUTLS=yes, HAVE_GNUTLS=no)
2152 if test "${HAVE_GNUTLS}" = "yes"; then
2153 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2156 CFLAGS="$CFLAGS $LIBGNUTLS_CFLAGS"
2157 LIBS="$LIBGNUTLS_LIBS $LIBS"
2158 AC_CHECK_FUNCS(gnutls_certificate_set_verify_function, HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=yes)
2160 if test "${HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY}" = "yes"; then
2161 AC_DEFINE(HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY, 1, [Define if using GnuTLS certificate verification callbacks.])
2165 AC_SUBST(LIBGNUTLS_LIBS)
2166 AC_SUBST(LIBGNUTLS_CFLAGS)
2168 dnl Do not put whitespace before the #include statements below.
2169 dnl Older compilers (eg sunos4 cc) choke on it.
2172 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2173 if test "$with_xaw3d" != no; then
2174 AC_CACHE_VAL(emacs_cv_xaw3d,
2175 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2176 #include <X11/Intrinsic.h>
2177 #include <X11/Xaw3d/Simple.h>]],
2179 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2180 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2181 emacs_cv_xaw3d=no)])
2185 if test $emacs_cv_xaw3d = yes; then
2186 AC_MSG_CHECKING(for xaw3d)
2187 AC_MSG_RESULT([yes; using Lucid toolkit])
2191 AC_DEFINE(HAVE_XAW3D, 1,
2192 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2194 AC_MSG_CHECKING(for xaw3d)
2196 AC_MSG_CHECKING(for libXaw)
2197 AC_CACHE_VAL(emacs_cv_xaw,
2198 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2199 #include <X11/Intrinsic.h>
2200 #include <X11/Xaw/Simple.h>]],
2204 if test $emacs_cv_xaw = yes; then
2205 AC_MSG_RESULT([yes; using Lucid toolkit])
2208 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2209 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2211 AC_MSG_ERROR([No X toolkit could be found.
2212 If you are sure you want Emacs compiled without an X toolkit, pass
2214 to configure. Otherwise, install the development libraries for the toolkit
2215 that you want to use (e.g. Gtk+) and re-run configure.])
2220 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2223 if test "${USE_X_TOOLKIT}" != "none"; then
2224 AC_MSG_CHECKING(X11 toolkit version)
2225 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2226 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2227 [[#if XtSpecificationRelease < 6
2230 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2231 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2232 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2233 AC_MSG_RESULT(6 or newer)
2234 AC_DEFINE(HAVE_X11XTR6, 1,
2235 [Define to 1 if you have the X11R6 or newer version of Xt.])
2236 LIBXTR6="-lSM -lICE"
2238 ## Use libw.a along with X11R6 Xt.
2239 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2242 AC_MSG_RESULT(before 6)
2245 dnl If using toolkit, check whether libXmu.a exists.
2246 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2248 if test x$HAVE_X11XTR6 = xyes; then
2249 LIBS="-lXt -lSM -lICE $LIBS"
2253 AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
2254 test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
2255 dnl ac_cv_lib_Xmu_XmuConvertStandardSelection is also referenced below.
2259 dnl FIXME the logic here seems weird, but this is what cpp was doing.
2260 dnl Why not just test for libxmu in the normal way?
2263 ## These systems don't supply Xmu.
2265 test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
2270 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
2271 if test "${HAVE_X11}" = "yes"; then
2272 if test "${USE_X_TOOLKIT}" != "none"; then
2273 AC_CHECK_LIB(Xext, XShapeQueryExtension)
2278 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2279 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2280 if test -d /usr/include/openmotif; then
2281 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2282 emacs_cv_openmotif=yes
2283 case "$canonical" in
2284 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2285 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2288 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2291 emacs_cv_openmotif=no
2293 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2294 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2295 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2298 Motif version prior to 2.1.
2300 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2301 if test $emacs_cv_motif_version_2_1 = yes; then
2302 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2303 if test x$emacs_cv_openmotif = xyes; then
2304 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2307 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2308 # We put this in CFLAGS temporarily to precede other -I options
2309 # that might be in CFLAGS temporarily.
2310 # We put this in CPPFLAGS where it precedes the other -I options.
2311 OLD_CPPFLAGS=$CPPFLAGS
2313 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2314 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2315 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2317 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2318 if test $emacs_cv_lesstif = yes; then
2319 # Make sure this -I option remains in CPPFLAGS after it is set
2320 # back to REAL_CPPFLAGS.
2321 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2322 # have those other -I options anyway. Ultimately, having this
2323 # directory ultimately in CPPFLAGS will be enough.
2324 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2325 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2328 CPPFLAGS=$OLD_CPPFLAGS
2331 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2332 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2335 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2336 dnl using Motif or Xaw3d is available, and unless
2337 dnl --with-toolkit-scroll-bars=no was specified.
2339 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2340 [Define to 1 if we should use toolkit scroll bars.])dnl
2341 USE_TOOLKIT_SCROLL_BARS=no
2342 if test "${with_toolkit_scroll_bars}" != "no"; then
2343 if test "${USE_X_TOOLKIT}" != "none"; then
2344 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2345 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2347 USE_TOOLKIT_SCROLL_BARS=yes
2348 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2349 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2350 USE_TOOLKIT_SCROLL_BARS=yes
2352 elif test "${HAVE_GTK}" = "yes"; then
2353 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2354 USE_TOOLKIT_SCROLL_BARS=yes
2355 elif test "${HAVE_NS}" = "yes"; then
2356 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2357 USE_TOOLKIT_SCROLL_BARS=yes
2358 elif test "${HAVE_W32}" = "yes"; then
2359 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2360 USE_TOOLKIT_SCROLL_BARS=yes
2364 dnl See if XIM is available.
2365 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2366 #include <X11/Xlib.h>
2367 #include <X11/Xresource.h>]],
2368 [[XIMProc callback;]])],
2370 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2373 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2375 if test "${with_xim}" != "no"; then
2376 AC_DEFINE(USE_XIM, 1,
2377 [Define to 1 if we should use XIM, if it is available.])
2381 if test "${HAVE_XIM}" != "no"; then
2383 if test "$GCC" = yes; then
2384 CFLAGS="$CFLAGS --pedantic-errors"
2386 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2387 #include <X11/Xlib.h>
2388 #include <X11/Xresource.h>]],
2394 XPointer *client_data;
2396 /* If we're not using GCC, it's probably not XFree86, and this is
2397 probably right, but we can't use something like --pedantic-errors. */
2398 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2399 char*, XIMProc, XPointer*);
2401 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2403 [emacs_cv_arg6_star=yes])
2404 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2405 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2406 either XPointer or XPointer*.])dnl
2407 if test "$emacs_cv_arg6_star" = yes; then
2408 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2410 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2415 ### Start of font-backend (under any platform) section.
2416 # (nothing here yet -- this is a placeholder)
2417 ### End of font-backend (under any platform) section.
2419 ### Start of font-backend (under X11) section.
2420 if test "${HAVE_X11}" = "yes"; then
2421 PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
2423 ## Use -lXft if available, unless `--with-xft=no'.
2425 if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2428 if test "x${with_xft}" != "xno"; then
2430 PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
2431 ## Because xftfont.c uses XRenderQueryExtension, we also
2432 ## need to link to -lXrender.
2434 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2435 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2436 OLD_CPPFLAGS="$CPPFLAGS"
2437 OLD_CFLAGS="$CFLAGS"
2439 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2440 CFLAGS="$CFLAGS $XFT_CFLAGS"
2441 XFT_LIBS="-lXrender $XFT_LIBS"
2442 LIBS="$XFT_LIBS $LIBS"
2443 AC_CHECK_HEADER(X11/Xft/Xft.h,
2444 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS))
2446 if test "${HAVE_XFT}" = "yes"; then
2447 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2449 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2451 CPPFLAGS="$OLD_CPPFLAGS"
2452 CFLAGS="$OLD_CFLAGS"
2454 fi # "${HAVE_XFT}" = "yes"
2455 fi # "$HAVE_XFT" != no
2456 fi # "x${with_xft}" != "xno"
2458 ## We used to allow building with FreeType and without Xft.
2459 ## However, the ftx font backend driver is not in good shape.
2460 if test "$HAVE_XFT" != "yes"; then
2461 dnl For the "Does Emacs use" message at the end.
2465 dnl Strict linkers fail with
2466 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2467 dnl if -lfreetype is not specified.
2468 dnl The following is needed to set FREETYPE_LIBS.
2469 PKG_CHECK_MODULES(FREETYPE, freetype2, HAVE_FREETYPE=yes,
2472 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2476 if test "${HAVE_FREETYPE}" = "yes"; then
2477 AC_DEFINE(HAVE_FREETYPE, 1,
2478 [Define to 1 if using the freetype and fontconfig libraries.])
2479 if test "${with_libotf}" != "no"; then
2480 PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
2482 if test "$HAVE_LIBOTF" = "yes"; then
2483 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2484 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2485 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2486 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2487 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2488 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2489 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2493 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2494 dnl Does the new font backend require it, or can it work without it?
2498 if test "${HAVE_LIBOTF}" = yes; then
2499 if test "${with_m17n_flt}" != "no"; then
2500 PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
2501 if test "$HAVE_M17N_FLT" = "yes"; then
2502 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2513 ### End of font-backend (under X11) section.
2515 AC_SUBST(FREETYPE_CFLAGS)
2516 AC_SUBST(FREETYPE_LIBS)
2517 AC_SUBST(FONTCONFIG_CFLAGS)
2518 AC_SUBST(FONTCONFIG_LIBS)
2519 AC_SUBST(LIBOTF_CFLAGS)
2520 AC_SUBST(LIBOTF_LIBS)
2521 AC_SUBST(M17N_FLT_CFLAGS)
2522 AC_SUBST(M17N_FLT_LIBS)
2524 ### Use -lXpm if available, unless `--with-xpm=no'.
2528 if test "${HAVE_W32}" = "yes"; then
2529 if test "${with_xpm}" != "no"; then
2530 SAVE_CPPFLAGS="$CPPFLAGS"
2531 SAVE_LDFLAGS="$LDFLAGS"
2532 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
2533 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
2534 AC_CHECK_HEADER(X11/xpm.h,
2535 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
2536 if test "${HAVE_XPM}" = "yes"; then
2537 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2538 AC_EGREP_CPP(no_return_alloc_pixels,
2539 [#include "X11/xpm.h"
2540 #ifndef XpmReturnAllocPixels
2541 no_return_alloc_pixels
2543 ], HAVE_XPM=no, HAVE_XPM=yes)
2545 if test "${HAVE_XPM}" = "yes"; then
2546 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
2550 CPPFLAGS="$SAVE_CPPFLAGS"
2551 LDFLAGS="$SAVE_LDFLAGS"
2556 if test "${HAVE_XPM}" = "yes"; then
2557 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2562 if test "${HAVE_X11}" = "yes"; then
2563 if test "${with_xpm}" != "no"; then
2564 AC_CHECK_HEADER(X11/xpm.h,
2565 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2566 if test "${HAVE_XPM}" = "yes"; then
2567 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2568 AC_EGREP_CPP(no_return_alloc_pixels,
2569 [#include "X11/xpm.h"
2570 #ifndef XpmReturnAllocPixels
2571 no_return_alloc_pixels
2573 ], HAVE_XPM=no, HAVE_XPM=yes)
2575 if test "${HAVE_XPM}" = "yes"; then
2583 if test "${HAVE_XPM}" = "yes"; then
2584 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2591 ### Use -ljpeg if available, unless `--with-jpeg=no'.
2594 if test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2595 if test "${with_jpeg}" != "no"; then
2596 dnl Checking for jpeglib.h can lose because of a redefinition of
2598 AC_CHECK_HEADER(jerror.h,
2599 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
2602 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2603 if test "${HAVE_JPEG}" = "yes"; then
2604 AC_DEFINE(HAVE_JPEG)
2605 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2606 [#include <jpeglib.h>
2607 version=JPEG_LIB_VERSION
2609 [AC_DEFINE(HAVE_JPEG)],
2610 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2613 if test "${HAVE_JPEG}" = "yes"; then
2619 ### Use -lpng if available, unless `--with-png=no'.
2622 if test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2623 if test "${with_png}" != "no"; then
2624 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
2625 # in /usr/include/libpng.
2626 AC_CHECK_HEADERS(png.h libpng/png.h, break)
2627 if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
2628 AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
2632 if test "${HAVE_PNG}" = "yes"; then
2633 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2634 LIBPNG="-lpng -lz -lm"
2636 AC_CHECK_DECL(png_longjmp,
2638 [AC_DEFINE(PNG_DEPSTRUCT, [],
2639 [Define to empty to suppress deprecation warnings when building
2640 with --enable-gcc-warnings and with libpng versions before 1.5,
2641 which lack png_longjmp.])],
2642 [[#ifdef HAVE_LIBPNG_PNG_H
2643 # include <libpng/png.h>
2652 ### Use -ltiff if available, unless `--with-tiff=no'.
2655 if test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2656 if test "${with_tiff}" != "no"; then
2657 AC_CHECK_HEADER(tiffio.h,
2659 # At least one tiff package requires the jpeg library.
2660 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
2661 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
2664 if test "${HAVE_TIFF}" = "yes"; then
2665 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
2666 dnl FIXME -lz -lm, as per libpng?
2672 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
2675 if test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
2676 || test "${HAVE_W32}" = "yes"; then
2677 AC_CHECK_HEADER(gif_lib.h,
2678 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
2679 # Earlier versions can crash Emacs.
2680 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])
2682 if test "$HAVE_GIF" = yes; then
2684 elif test "$HAVE_GIF" = maybe; then
2685 # If gif_lib.h but no libgif, try libungif.
2686 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
2687 test "$HAVE_GIF" = yes && LIBGIF=-lungif
2690 if test "${HAVE_GIF}" = "yes"; then
2691 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
2696 dnl Check for required libraries.
2697 if test "${HAVE_X11}" = "yes"; then
2700 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
2701 MISSING="libXpm" && WITH_NO="--with-xpm=no"
2702 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
2703 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
2704 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
2705 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
2706 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
2707 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
2708 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
2709 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
2711 if test "X${MISSING}" != X; then
2712 AC_MSG_ERROR([The following required libraries were not found:
2714 Maybe some development libraries/packages are missing?
2715 If you don't want to link with them give
2717 as options to configure])
2721 ### Use -lgpm if available, unless `--with-gpm=no'.
2724 if test "${with_gpm}" != "no"; then
2725 AC_CHECK_HEADER(gpm.h,
2726 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
2728 if test "${HAVE_GPM}" = "yes"; then
2729 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
2735 dnl Check for malloc/malloc.h on darwin
2736 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
2739 ### Use NeXTstep API to implement GUI.
2740 if test "${HAVE_NS}" = "yes"; then
2741 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
2742 if test "${NS_IMPL_COCOA}" = "yes"; then
2743 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
2745 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
2746 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
2747 # See also .m.o rule in Makefile.in */
2748 # FIXME: are all these flags really needed? Document here why. */
2749 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
2750 ## Extra CFLAGS applied to src/*.m files.
2751 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"
2753 # We also have mouse menus.
2758 if test "${HAVE_W32}" = "yes"; then
2762 ### Use session management (-lSM -lICE) if available
2765 if test "${HAVE_X11}" = "yes"; then
2766 AC_CHECK_HEADER(X11/SM/SMlib.h,
2767 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
2769 if test "${HAVE_X_SM}" = "yes"; then
2770 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
2774 *) LIBS="$LIBXSM $LIBS" ;;
2780 ### Use libxml (-lxml2) if available
2782 if test "${with_xml2}" != "no"; then
2783 ### I'm not sure what the version number should be, so I just guessed.
2784 PKG_CHECK_MODULES(LIBXML2, libxml-2.0 > 2.6.17, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2785 if test "${HAVE_LIBXML2}" = "yes"; then
2786 LIBS="$LIBXML2_LIBS $LIBS"
2787 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2788 if test "${HAVE_LIBXML2}" = "yes"; then
2789 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
2796 AC_SUBST(LIBXML2_LIBS)
2797 AC_SUBST(LIBXML2_CFLAGS)
2799 # If netdb.h doesn't declare h_errno, we must declare it by hand.
2800 AC_CACHE_CHECK(whether netdb declares h_errno,
2801 emacs_cv_netdb_declares_h_errno,
2802 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
2803 [[return h_errno;]])],
2804 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
2805 if test $emacs_cv_netdb_declares_h_errno = yes; then
2806 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
2809 # sqrt and other floating-point functions such as fmod and frexp
2810 # are found in -lm on most systems.
2811 AC_CHECK_LIB(m, sqrt)
2813 # Check for mail-locking functions in a "mail" library. Probably this should
2814 # have the same check as for liblockfile below.
2815 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
2816 if test $have_mail = yes; then
2818 LIBS="$LIBS_MAIL $LIBS"
2819 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
2823 dnl Debian, at least:
2824 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
2825 if test $have_lockfile = yes; then
2826 LIBS_MAIL=-llockfile
2827 LIBS="$LIBS_MAIL $LIBS"
2828 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
2830 # If we have the shared liblockfile, assume we must use it for mail
2831 # locking (e.g. Debian). If we couldn't link against liblockfile
2832 # (no liblockfile.a installed), ensure that we don't need to.
2833 dnl This works for files generally, not just executables.
2834 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
2835 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
2836 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
2837 if test $ac_cv_prog_liblockfile = yes; then
2838 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
2839 This probably means that movemail could lose mail.
2840 There may be a `development' package to install containing liblockfile.])
2843 AC_CHECK_HEADERS_ONCE(maillock.h)
2846 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
2847 ## interlock access to the mail spool. The alternative is a lock file named
2848 ## /usr/spool/mail/$USER.lock.
2851 aix4-2) mail_lock="lockf" ;;
2853 gnu|freebsd|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
2855 ## On GNU/Linux systems, both methods are used by various mail programs.
2856 ## I assume most people are using newer mailers that have heard of flock.
2857 ## Change this if you need to.
2858 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
2859 ## configure gets the right answers, and that means *NOT* using flock.
2860 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
2861 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
2862 ## Debian maintainer hasn't provided a clean fix for Emacs.
2863 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
2864 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
2865 ## correct logic. -- fx
2866 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
2867 ## liblockfile is a Free Software replacement for libmail, used on
2868 ## Debian systems and elsewhere. -rfr.
2871 if test $have_mail = yes || test $have_lockfile = yes; then
2872 test $ac_cv_header_maillock_h = yes && mail_lock=no
2878 case "$mail_lock" in
2879 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
2881 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
2883 *) BLESSMAIL_TARGET="need-blessmail" ;;
2885 AC_SUBST(BLESSMAIL_TARGET)
2888 AC_CHECK_FUNCS(gethostname \
2889 closedir getrusage get_current_dir_name \
2891 select getpagesize setlocale \
2892 utimes getrlimit setrlimit getcwd shutdown getaddrinfo \
2893 strsignal setitimer \
2894 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
2895 gai_strerror mkstemp getline getdelim fsync sync \
2896 difftime posix_memalign \
2897 getpwent endpwent getgrent endgrent \
2899 cfmakeraw cfsetspeed copysign __executable_start)
2901 dnl getwd appears to be buggy on SVR4.2, so we don't use it.
2902 if test $opsys = unixware; then
2903 dnl In case some other test ends up checking for getwd.
2904 AC_DEFINE(BROKEN_GETWD, 1, [Define if getwd should not be used.])
2906 AC_CHECK_FUNCS(getwd)
2909 ## Eric Backus <ericb@lsid.hp.com> says, HP-UX 9.x on HP 700 machines
2910 ## has a broken `rint' in some library versions including math library
2911 ## version number A.09.05.
2912 ## You can fix the math library by installing patch number PHSS_4630.
2913 ## But we can fix it more reliably for Emacs by just not using rint.
2914 ## We also skip HAVE_RANDOM - see comments in src/conf_post.h.
2917 *) AC_CHECK_FUNCS(random rint) ;;
2920 dnl Cannot use AC_CHECK_FUNCS
2921 AC_CACHE_CHECK([for __builtin_unwind_init],
2922 emacs_cv_func___builtin_unwind_init,
2923 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
2924 emacs_cv_func___builtin_unwind_init=yes,
2925 emacs_cv_func___builtin_unwind_init=no)])
2926 if test $emacs_cv_func___builtin_unwind_init = yes; then
2927 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
2928 [Define to 1 if you have the `__builtin_unwind_init' function.])
2931 AC_CHECK_HEADERS_ONCE(sys/un.h)
2936 AC_CHECK_FUNCS(grantpt)
2938 # PTY-related GNU extensions.
2939 AC_CHECK_FUNCS(getpt posix_openpt)
2941 # Check this now, so that we will NOT find the above functions in ncurses.
2942 # That is because we have not set up to link ncurses in lib-src.
2943 # It's better to believe a function is not available
2944 # than to expect to find it in ncurses.
2945 # Also we need tputs and friends to be able to build at all.
2946 AC_MSG_CHECKING([for library containing tputs])
2947 # Run a test program that contains a call to tputs, a call that is
2948 # never executed. This tests whether a pre-'main' dynamic linker
2949 # works with the library. It's too much trouble to actually call
2950 # tputs in the test program, due to portability hassles. When
2951 # cross-compiling, assume the test program will run if it links.
2952 AC_DEFUN([tputs_link_source], [
2954 [[extern void tputs (const char *, int, int (*)(int));
2955 int main (int argc, char **argv)
2958 tputs (argv[0], 0, 0);
2962 # Maybe curses should be tried earlier?
2963 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
2964 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
2966 if test -z "$tputs_library"; then
2970 LIBS_TERMCAP=-l$tputs_library
2972 LIBS="$LIBS_TERMCAP $LIBS"
2974 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
2975 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
2977 if test "X$msg" != Xno; then
2981 AC_MSG_RESULT([$msg])
2982 if test "X$msg" = Xno; then
2983 AC_MSG_ERROR([The required function `tputs' was not found in any library.
2984 The following libraries were tried (in order):
2985 libtinfo, libncurses, libterminfo, libtermcap, libcurses
2986 Please try installing whichever of these libraries is most appropriate
2987 for your system, together with its header files.
2988 For example, a libncurses-dev(el) or similar package.])
2991 ## Use termcap instead of terminfo?
2992 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
2994 ## FIXME? In the cases below where we unconditionally set
2995 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
2996 ## if that was found above to have tputs.
2997 ## Should we use the gnu* logic everywhere?
2999 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3000 ## The ncurses library has been moved out of the System framework in
3001 ## Mac OS X 10.2. So if configure detects it, set the command-line
3002 ## option to use it.
3003 darwin) LIBS_TERMCAP="-lncurses" ;;
3005 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3008 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3009 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3010 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3011 [[#if __FreeBSD_version < 400000
3014 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3016 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3018 if test $emacs_cv_freebsd_terminfo = yes; then
3019 LIBS_TERMCAP="-lncurses"
3022 LIBS_TERMCAP="-ltermcap"
3027 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3029 LIBS_TERMCAP="-ltermcap"
3033 openbsd) LIBS_TERMCAP="-lncurses" ;;
3035 ## hpux: Make sure we get select from libc rather than from libcurses
3036 ## because libcurses on HPUX 10.10 has a broken version of select.
3037 ## We used to use -lc -lcurses, but this may be cleaner.
3038 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3039 # set that way, now it uses the default). Isn't this a contradiction?
3040 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3044 TERMCAP_OBJ=tparam.o
3045 if test $TERMINFO = yes; then
3046 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3047 TERMCAP_OBJ=terminfo.o
3049 AC_SUBST(LIBS_TERMCAP)
3050 AC_SUBST(TERMCAP_OBJ)
3053 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3054 # On Darwin, res_init appears not to be useful: see bug#562 and
3055 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3058 if test $opsys != darwin; then
3060 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3061 #include <arpa/nameser.h>
3062 #include <resolv.h>]],
3063 [[return res_init();]])],
3064 have_res_init=yes, have_res_init=no)
3065 if test "$have_res_init" = no; then
3067 LIBS="$LIBS -lresolv"
3068 AC_MSG_CHECKING(for res_init with -lresolv)
3069 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3070 #include <arpa/nameser.h>
3071 #include <resolv.h>]],
3072 [[return res_init();]])],
3073 have_res_init=yes, have_res_init=no)
3074 AC_MSG_RESULT($have_res_init)
3075 if test "$have_res_init" = yes ; then
3081 if test "$have_res_init" = yes; then
3082 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3086 # Do we need the Hesiod library to provide the support routines?
3087 dnl FIXME? Should we be skipping this on Darwin too?
3089 if test "$with_hesiod" != no ; then
3090 # Don't set $LIBS here -- see comments above. FIXME which comments?
3091 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3092 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3093 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3094 if test "$resolv" = yes ; then
3099 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3100 hesiod=yes, :, $RESOLVLIB)])
3102 if test x"$hesiod" = xyes; then
3103 AC_DEFINE(HAVE_LIBHESIOD, 1,
3104 [Define to 1 if you have the hesiod library (-lhesiod).])
3110 # Do we need libresolv (due to res_init or Hesiod)?
3111 if test "$resolv" = yes && test $opsys != darwin; then
3112 AC_DEFINE(HAVE_LIBRESOLV, 1,
3113 [Define to 1 if you have the resolv library (-lresolv).])
3120 # These tell us which Kerberos-related libraries to use.
3127 if test "${with_kerberos}" != no; then
3128 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3129 if test $have_com_err = yes; then
3130 COM_ERRLIB=-lcom_err
3131 LIBS="$COM_ERRLIB $LIBS"
3132 AC_DEFINE(HAVE_LIBCOM_ERR, 1, [Define to 1 if you have the `com_err' library (-lcom_err).])
3134 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3135 if test $have_crypto = yes; then
3137 LIBS="$CRYPTOLIB $LIBS"
3138 AC_DEFINE(HAVE_LIBCRYPTO, 1, [Define to 1 if you have the `crypto' library (-lcrypto).])
3140 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3141 if test $have_k5crypto = yes; then
3142 CRYPTOLIB=-lk5crypto
3143 LIBS="$CRYPTOLIB $LIBS"
3144 AC_DEFINE(HAVE_LIBK5CRYPTO, 1, [Define to 1 if you have the `k5crypto' library (-lk5crypto).])
3146 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3147 if test $have_krb5=yes; then
3149 LIBS="$KRB5LIB $LIBS"
3150 AC_DEFINE(HAVE_LIBKRB5, 1, [Define to 1 if you have the `krb5' library (-lkrb5).])
3152 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3153 if test "${with_kerberos5}" = no; then
3154 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3155 if test $have_des425 = yes; then
3157 LIBS="$DESLIB $LIBS"
3158 AC_DEFINE(HAVE_LIBDES425, 1, [Define to 1 if you have the `des425' library (-ldes425).])
3160 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3161 if test $have_des = yes; then
3163 LIBS="$DESLIB $LIBS"
3164 AC_DEFINE(HAVE_LIBDES, 1, [Define to 1 if you have the `des' library (-ldes).])
3167 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3168 if test $have_krb4 = yes; then
3170 LIBS="$KRB4LIB $LIBS"
3171 AC_DEFINE(HAVE_LIBKRB4, 1, [Define to 1 if you have the `krb4' library (-lkrb4).])
3173 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3174 if test $have_krb = yes; then
3176 LIBS="$KRB4LIB $LIBS"
3177 AC_DEFINE(HAVE_LIBKRB, 1, [Define to 1 if you have the `krb' library (-lkrb).])
3182 if test "${with_kerberos5}" != no; then
3183 AC_CHECK_HEADERS(krb5.h,
3184 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3185 [#include <krb5.h>])])
3187 AC_CHECK_HEADERS(des.h,,
3188 [AC_CHECK_HEADERS(kerberosIV/des.h,,
3189 [AC_CHECK_HEADERS(kerberos/des.h)])])
3190 AC_CHECK_HEADERS(krb.h,,
3191 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3192 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3194 AC_CHECK_HEADERS(com_err.h)
3197 AC_SUBST(COM_ERRLIB)
3203 AC_CHECK_FUNCS_ONCE(tzset)
3204 AC_MSG_CHECKING(whether localtime caches TZ)
3205 AC_CACHE_VAL(emacs_cv_localtime_cache,
3206 [if test x$ac_cv_func_tzset = xyes; then
3207 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3208 char TZ_GMT0[] = "TZ=GMT0";
3209 char TZ_PST8[] = "TZ=PST8";
3212 time_t now = time ((time_t *) 0);
3213 int hour_GMT0, hour_unset;
3214 if (putenv (TZ_GMT0) != 0)
3216 hour_GMT0 = localtime (&now)->tm_hour;
3218 hour_unset = localtime (&now)->tm_hour;
3219 if (putenv (TZ_PST8) != 0)
3221 if (localtime (&now)->tm_hour == hour_GMT0)
3224 if (localtime (&now)->tm_hour != hour_unset)
3227 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3228 [# If we have tzset, assume the worst when cross-compiling.
3229 emacs_cv_localtime_cache=yes])
3231 # If we lack tzset, report that localtime does not cache TZ,
3232 # since we can't invalidate the cache if we don't have tzset.
3233 emacs_cv_localtime_cache=no
3235 AC_MSG_RESULT($emacs_cv_localtime_cache)
3236 if test $emacs_cv_localtime_cache = yes; then
3237 AC_DEFINE(LOCALTIME_CACHE, 1,
3238 [Define to 1 if localtime caches TZ.])
3242 AC_CHECK_FUNC(socket, , ok_so_far=no)
3243 if test $ok_so_far = yes; then
3244 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3246 if test $ok_so_far = yes; then
3247 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3249 if test $ok_so_far = yes; then
3250 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3251 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3252 [Define to 1 if you have inet sockets.])
3255 if test -f /usr/lpp/X11/bin/smt.exp; then
3256 AC_DEFINE(HAVE_AIX_SMT_EXP, 1,
3257 [Define to 1 if the file /usr/lpp/X11/bin/smt.exp exists.])
3260 AC_MSG_CHECKING(whether system supports dynamic ptys)
3261 if test -d /dev/pts && ls -d /dev/ptmx > /dev/null 2>&1 ; then
3263 AC_DEFINE(HAVE_DEV_PTMX, 1, [Define to 1 if dynamic ptys are supported.])
3268 dnl Check for a Solaris 2.4 vfork bug that Autoconf misses (through 2.69).
3269 dnl This can be removed once we assume Autoconf 2.70.
3271 *-solaris2.4 | *-solaris2.4.*)
3272 dnl Disable the Autoconf-generated vfork test.
3273 : ${ac_cv_func_vfork_works=no};;
3278 AC_CHECK_FUNCS(snprintf)
3280 dnl Adapted from Haible's version.
3281 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3282 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3283 [[char* cs = nl_langinfo(CODESET);]])],
3284 emacs_cv_langinfo_codeset=yes,
3285 emacs_cv_langinfo_codeset=no)
3287 if test $emacs_cv_langinfo_codeset = yes; then
3288 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3289 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3294 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3295 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3296 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3297 if test "$emacs_cv_c_restrict_arr" = yes; then
3298 AC_DEFINE(__restrict_arr, __restrict,
3299 [Define to compiler's equivalent of C99 restrict keyword in array
3300 declarations. Define as empty for no equivalent.])
3303 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3304 dnl how the tty code is related to POSIX and/or other versions of termios.
3305 dnl The following looks like a useful start.
3307 dnl AC_SYS_POSIX_TERMIOS
3308 dnl if test $ac_cv_sys_posix_termios = yes; then
3309 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3310 dnl and macros for terminal control.])
3311 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3314 dnl Turned on June 1996 supposing nobody will mind it.
3315 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3316 in the full name stands for the login id.])
3318 dnl Every platform that uses configure (ie every non-MS platform)
3319 dnl supports this. There is a create-lockfiles option you can
3320 dnl customize if you do not want the lock files to be written.
3321 dnl So it is not clear that this #define still needs to exist.
3322 AC_DEFINE(CLASH_DETECTION, 1, [Define if you want lock files to be written,
3323 so that Emacs can tell instantly when you try to modify a file that
3324 someone else has modified in his/her Emacs.])
3326 dnl Everybody supports this, except MS.
3327 dnl Seems like the kind of thing we should be testing for, though.
3328 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3329 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3331 dnl Everybody supports this, except MS-DOS.
3332 dnl Seems like the kind of thing we should be testing for, though.
3333 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3334 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3335 4.2-compatible sockets.])
3337 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3339 AC_DEFINE(NULL_DEVICE, ["/dev/null"], [Name of the file to open to get
3340 a null file, or a data sink.])
3342 AC_DEFINE(SEPCHAR, [':'], [Character that separates PATH elements.])
3344 dnl Everybody supports this, except MS-DOS.
3345 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3347 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3350 AC_DEFINE(DIRECTORY_SEP, ['/'],
3351 [Character that separates directories in a file name.])
3353 dnl Only used on MS platforms.
3354 AH_TEMPLATE(DEVICE_SEP, [Character that separates a device in a file name.])
3356 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
3357 [Returns true if character is a device separator.])
3359 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
3360 [Returns true if character is a directory separator.])
3362 dnl On MS, this also accepts IS_DEVICE_SEP.
3363 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
3364 [Returns true if character is any form of separator.])
3367 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
3371 dnl Unfortunately without libXmu we cannot support EditRes.
3372 if test x$ac_cv_lib_Xmu_XmuConvertStandardSelection != xyes; then
3373 AC_DEFINE(NO_EDITRES, 1)
3378 dnl Assar Westerlund <assar@sics.se> says this is necessary for
3379 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
3380 AC_DEFINE(NO_EDITRES, 1)
3386 irix6-5 | sol2* | unixware )
3387 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
3388 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
3389 dnl need the constant to dimension an array. So wire in the appropriate
3391 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
3395 emacs_broken_SIGIO=no
3398 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
3399 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
3400 hpux* | irix6-5 | openbsd | sol2* | unixware )
3401 emacs_broken_SIGIO=yes
3405 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
3406 dnl the way this system works, libc functions that return malloced
3407 dnl memory use the libc malloc implementation. Calling xfree or
3408 dnl xrealloc on the results of such functions results in a crash.
3410 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
3411 dnl but that does not currently work on this system.
3413 dnl It is possible to completely override the malloc implementation on
3414 dnl AIX, but that involves putting the malloc functions in a shared
3415 dnl library and setting the MALLOCTYPE environment variable to point to
3416 dnl that shared library.
3418 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
3419 dnl to avoid a crash just use the Emacs implementation for that function.
3421 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
3422 dnl of this file, so that we do not check for get_current_dir_name
3423 dnl on AIX. But that might be fragile if something else ends
3424 dnl up testing for get_current_dir_name as a dependency.
3425 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
3426 get_current_dir_name should not be used.])
3430 dnl Circumvent a bug in FreeBSD. In the following sequence of
3431 dnl writes/reads on a PTY, read(2) returns bogus data:
3433 dnl write(2) 1022 bytes
3434 dnl write(2) 954 bytes, get EAGAIN
3435 dnl read(2) 1024 bytes in process_read_output
3436 dnl read(2) 11 bytes in process_read_output
3438 dnl That is, read(2) returns more bytes than have ever been written
3439 dnl successfully. The 1033 bytes read are the 1022 bytes written
3440 dnl successfully after processing (for example with CRs added if the
3441 dnl terminal is set up that way which it is here). The same bytes will
3442 dnl be seen again in a later read(2), without the CRs.
3443 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
3444 work around an issue when reading from a PTY.])
3450 dnl FIXME Can't we test if this exists (eg /proc/$$)?
3451 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
3456 darwin | freebsd | netbsd | openbsd )
3457 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
3458 close a pty to make it a controlling terminal (it is already a
3459 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
3463 dnl FIXME Surely we can test for this rather than hard-code it.
3465 netbsd | openbsd) sound_device="/dev/audio" ;;
3466 *) sound_device="/dev/dsp" ;;
3470 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
3471 [Name of the default sound device.])
3474 dnl Emacs can read input using SIGIO and buffering characters itself,
3475 dnl or using CBREAK mode and making C-g cause SIGINT.
3476 dnl The choice is controlled by the variable interrupt_input.
3478 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
3480 dnl Emacs uses the presence of the USABLE_SIGIO macro
3481 dnl to indicate whether or not signal-driven I/O is possible. It uses
3482 dnl INTERRUPT_INPUT to decide whether to use it by default.
3484 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
3485 dnl CBREAK mode has two disadvantages
3486 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
3487 dnl I hear that in system V this problem does not exist.
3488 dnl 2) Control-G causes output to be discarded.
3489 dnl I do not know whether this can be fixed in system V.
3491 dnl Another method of doing input is planned but not implemented.
3492 dnl It would have Emacs fork off a separate process
3493 dnl to read the input and send it to the true Emacs process
3496 darwin | gnu-linux | gnu-kfreebsd )
3497 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
3502 dnl If the system's imake configuration file defines `NeedWidePrototypes'
3503 dnl as `NO', we must define NARROWPROTO manually. Such a define is
3504 dnl generated in the Makefile generated by `xmkmf'. If we don't define
3505 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
3506 dnl taking float or double parameters.
3508 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
3509 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
3510 file defines `NeedWidePrototypes' as `NO'.])
3515 dnl Used in process.c, this must be a loop, even if it only runs once.
3516 dnl (Except on SGI; see below. Take that, clarity and consistency!)
3517 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
3518 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
3519 dnl trying suffixes 0-16.
3520 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
3521 first PTY, if PTYs are supported.])
3522 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
3523 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
3524 end of a PTY, if non-standard.])
3525 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
3526 end of a PTY, if non-standard.])
3530 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
3531 dnl You allocate a pty by opening /dev/ptc to get the master side.
3532 dnl To get the name of the slave side, you just ttyname() the master side.
3533 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
3534 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
3538 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3539 dnl multi-line AC_DEFINEs are hard. :(
3540 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)])
3541 AC_DEFINE(PTY_NAME_SPRINTF, [])
3542 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3545 dnl FIXME? Maybe use same as freebsd - see bug#12040.
3547 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3548 dnl Not used, because PTY_ITERATION is defined.
3549 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3550 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
3551 dnl But we don't have to block SIGCHLD because it is blocked in the
3552 dnl implementation of grantpt.
3553 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (0)])
3554 AC_DEFINE(PTY_NAME_SPRINTF, [])
3555 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3559 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3562 gnu-linux | gnu-kfreebsd | freebsd | netbsd )
3564 if test "x$ac_cv_func_grantpt" = xyes; then
3565 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
3566 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3567 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
3568 dnl to prevent sigchld_handler from intercepting the child's death.
3569 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); }])
3570 dnl if HAVE_POSIX_OPENPT
3571 if test "x$ac_cv_func_posix_openpt" = xyes; then
3572 AC_DEFINE(PTY_OPEN, [fd = posix_openpt (O_RDWR | O_NOCTTY)])
3573 AC_DEFINE(PTY_NAME_SPRINTF, [])
3575 elif test "x$ac_cv_func_getpt" = xyes; then
3576 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
3577 AC_DEFINE(PTY_NAME_SPRINTF, [])
3579 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
3582 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3587 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3588 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
3589 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
3593 dnl It looks like this cannot be right, because it is not a loop.
3594 dnl However, process.c actually does this:
3600 dnl which presumably makes it OK, since irix == sgi (?).
3601 dnl FIXME it seems like this special treatment is unnecessary?
3602 dnl Why can't irix use a single-trip loop like eg cygwin?
3603 AC_DEFINE(PTY_ITERATION, [])
3604 dnl Not used, because PTY_ITERATION is defined.
3605 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
3606 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(SIGCLD, &cstat, &ocstat); name = _getpty (&fd, O_RDWR | O_NDELAY, 0600, 0); sigaction(SIGCLD, &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); }])
3607 dnl No need to get the pty name at all.
3608 AC_DEFINE(PTY_NAME_SPRINTF, [])
3609 dnl No need to use sprintf to get the tty name--we get that from _getpty.
3610 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3614 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
3615 dnl from intercepting that death. If any child but grantpt's should die
3616 dnl within, it should be caught after sigrelse(2).
3617 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptsname (int), *ptyname; int grantpt_result; sigset_t blocked; sigemptyset (&blocked); sigaddset (&blocked, SIGCLD); 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); }])
3621 dnl Comments are as per sol2*.
3622 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptsname (int), *ptyname; int grantpt_result; sigset_t blocked; sigemptyset (&blocked); sigaddset (&blocked, SIGCLD); 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); }])
3629 dnl This change means that we don't loop through allocate_pty too
3630 dnl many times in the (rare) event of a failure.
3631 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
3632 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
3633 dnl Push various streams modules onto a PTY channel. Used in process.c.
3634 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.])
3639 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
3640 "typing" a signal character on the pty.])
3643 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
3644 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
3645 aix4-2 | cygwin | gnu | irix6-5 | freebsd | netbsd | openbsd )
3646 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3649 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
3650 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
3651 gnu-linux | gnu-kfreebsd )
3653 AC_MSG_CHECKING([for signals via characters])
3654 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3655 #include <linux/version.h>
3656 #if LINUX_VERSION_CODE < 0x20400
3657 # error "Linux version too old"
3659 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
3661 AC_MSG_RESULT([$emacs_signals_via_chars])
3662 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3667 dnl Used in vm-limit.c
3668 AH_TEMPLATE(DATA_START, [Address of the start of the data segment.])
3669 dnl Used in lisp.h, emacs.c, mem-limits.h
3670 dnl NEWS.18 describes this as "a number which contains
3671 dnl the high bits to be inclusive or'ed with pointers that are unpacked."
3672 AH_TEMPLATE(DATA_SEG_BITS, [Extra bits to be or'd in with any pointers
3673 stored in a Lisp_Object.])
3674 dnl if Emacs uses fewer than 32 bits for the value field of a LISP_OBJECT.
3678 dnl libc defines data_start.
3679 AC_DEFINE(DATA_START, [({ extern int data_start; (char *) &data_start; })])
3683 dnl The data segment on this machine always starts at address 0x40000000.
3684 AC_DEFINE(DATA_START, [0x40000000])
3685 AC_DEFINE(DATA_SEG_BITS, [0x40000000])
3688 AC_DEFINE(DATA_START, [0x10000000])
3689 AC_DEFINE(DATA_SEG_BITS, [0x10000000])
3694 AH_TEMPLATE(ULIMIT_BREAK_VALUE, [Undocumented.])
3695 AH_TEMPLATE(TAB3, [Undocumented.])
3698 darwin) AC_DEFINE(TAB3, OXTABS) ;;
3700 gnu | freebsd | netbsd | openbsd )
3701 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
3702 AC_DEFINE(TAB3, OXTABS)
3705 gnu-linux | gnu-kfreebsd )
3706 dnl libc-linux/sysdeps/linux/i386/ulimit.c says that due to shared
3707 dnl library, we cannot get the maximum address for brk.
3708 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3712 ]], [[]])], AC_DEFINE(ULIMIT_BREAK_VALUE, [(32*1024*1024)]), [])
3714 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3718 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
3719 [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)],
3720 [Mark a secondary stack, like the register stack on the ia64.]), [])
3724 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
3725 run_time_remap; for HPUX.])
3729 dnl Ulimit(UL_GMEMLIM) is busted...
3730 AC_DEFINE(ULIMIT_BREAK_VALUE, [0x14000000])
3735 dnl These won't be used automatically yet. We also need to know, at least,
3736 dnl that the stack is continuous.
3737 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
3738 registers relevant for conservative garbage collection in the jmp_buf.])
3740 AH_TEMPLATE(GC_MARK_STACK, [Define to GC_USE_GCPROS_AS_BEFORE if
3741 conservative garbage collection is not known to work.])
3745 aix4-2 | hpux* | unixware)
3746 dnl Conservative garbage collection has not been tested, so for now
3747 dnl play it safe and stick with the old-fashioned way of marking.
3748 AC_DEFINE(GC_MARK_STACK, [GC_USE_GCPROS_AS_BEFORE])
3751 dnl Not all the architectures are tested, but there are Debian packages
3752 dnl for SCM and/or Guile on them, so the technique must work. See also
3753 dnl comments in alloc.c concerning setjmp and gcc.
3754 dnl Fixme: it's probably safe to just use the GCC conditional below.
3755 gnu-linux | gnu-kfreebsd )
3756 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3757 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
3758 || defined __alpha__ || defined __mips__ || defined __s390__ \
3759 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
3760 || defined __ia64__ || defined __sh__
3763 # error "setjmp not known to work on this arch"
3765 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1),
3766 AC_DEFINE(GC_MARK_STACK, [GC_USE_GCPROS_AS_BEFORE]) )
3771 if test x$GCC = xyes; then
3772 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
3773 AC_DEFINE(GC_SETJMP_WORKS, 1)
3776 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
3777 freebsd | netbsd | openbsd | irix6-5 | sol2* )
3778 AC_DEFINE(GC_SETJMP_WORKS, 1)
3783 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
3786 [[#include <setjmp.h>
3790 _longjmp (j, 1);]])],
3791 [emacs_cv_func__setjmp=yes],
3792 [emacs_cv_func__setjmp=no])])
3793 if test $emacs_cv_func__setjmp = yes; then
3794 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
3796 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
3799 [[#include <setjmp.h>
3802 if (! sigsetjmp (j, 1))
3803 siglongjmp (j, 1);]])],
3804 [emacs_cv_func_sigsetjmp=yes],
3805 [emacs_cv_func_sigsetjmp=no])])
3806 if test $emacs_cv_func_sigsetjmp = yes; then
3807 AC_DEFINE([HAVE_SIGSETJMP], 1,
3808 [Define to 1 if sigsetjmp and siglongjmp work.
3809 The value of this symbol is irrelevant if HAVE__SETJMP is defined.])
3815 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
3816 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
3817 dnl and this is all we need.
3818 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
3825 dnl Used in xfaces.c.
3826 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
3827 some systems, where it requires time.h.])
3832 dnl Define symbols to identify the version of Unix this is.
3833 dnl Define all the symbols that apply correctly.
3834 AH_TEMPLATE(BSD4_2, [Define if the system is compatible with BSD 4.2.])
3835 AH_TEMPLATE(BSD_SYSTEM, [Define if the system is compatible with BSD 4.2.])
3836 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
3837 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
3838 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
3839 AH_TEMPLATE(USG5, [Define if the system is compatible with System V.])
3840 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
3846 dnl This symbol should be defined on AIX Version 3 ???????
3847 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3849 # error "_AIX not defined"
3851 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
3855 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
3859 dnl BSD4_3 and BSD4_4 are already defined in sys/param.h.
3860 AC_DEFINE(BSD4_2, [])
3861 AC_DEFINE(BSD_SYSTEM, [])
3862 dnl More specific than the above two. We cannot use __APPLE__ as this
3863 dnl may not be defined on non-OSX Darwin, and we cannot define DARWIN
3864 dnl here because Panther and lower CoreFoundation.h uses DARWIN to
3865 dnl distinguish OS X from pure Darwin.
3866 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
3870 AC_DEFINE(BSD4_2, [])
3871 dnl Hack to avoid calling AC_PREPROC_IFELSE multiple times.
3872 dnl Would not be needed with autoconf >= 2.67, where the
3873 dnl preprocessed output is accessible in "conftest.i".
3874 AC_DEFINE(BSD_SYSTEM_AHB, 1, [Define if AH_BOTTOM should change BSD_SYSTEM.])
3877 gnu | netbsd | openbsd )
3878 AC_DEFINE(BSD4_2, [])
3879 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3881 # error "BSD_SYSTEM not defined"
3883 ]], [[]])], [], AC_DEFINE(BSD_SYSTEM, 43) )
3886 gnu-linux | gnu-kfreebsd )
3888 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
3894 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
3900 AC_DEFINE(USG5_4, [])
3901 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
3907 AC_DEFINE(USG5_4, [])
3908 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
3914 AC_DEFINE(USG5_4, [])
3918 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
3921 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
3922 emacs_cv_usable_FIONREAD=no
3927 [AC_LANG_PROGRAM([[#include <sys/types.h>
3928 #include <sys/ioctl.h>
3930 # include <sys/filio.h>
3933 [[int foo = ioctl (0, FIONREAD, &foo);]])],
3934 [emacs_cv_usable_FIONREAD=yes],
3935 [emacs_cv_usable_FIONREAD=no])
3938 if test $emacs_cv_usable_FIONREAD = yes; then
3939 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
3941 if test $emacs_broken_SIGIO = no; then
3942 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
3944 [AC_LANG_PROGRAM([[#include <fcntl.h>
3947 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
3948 [emacs_cv_usable_SIGIO=yes],
3949 [emacs_cv_usable_SIGIO=no])],
3950 [emacs_cv_usable_SIGIO=yes],
3951 [emacs_cv_usable_SIGIO=no])
3952 if test $emacs_cv_usable_SIGIO = yes; then
3953 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
3960 dnl Emacs supplies its own malloc, but glib (part of Gtk+) calls
3961 dnl memalign and on Cygwin, that becomes the Cygwin-supplied memalign.
3962 dnl As malloc is not the Cygwin malloc, the Cygwin memalign always
3963 dnl returns ENOSYS. A workaround is to set G_SLICE=always-malloc. */
3965 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
3966 G_SLICE environment variable to "always-malloc" at startup, if
3971 dnl It works to open the pty's tty in the parent (Emacs), then
3972 dnl close and reopen it in the child.
3973 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
3974 works to open a pty's tty in the parent process, then close and
3975 reopen it in the child.])
3979 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
3980 use VSUSP instead of VSWTCH.])
3984 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
3989 # Set up the CFLAGS for real compilation, so we can substitute it.
3990 CFLAGS="$REAL_CFLAGS"
3991 CPPFLAGS="$REAL_CPPFLAGS"
3993 ## Hack to detect a buggy GCC version.
3994 if test "x$GCC" = xyes \
3995 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
3996 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
3997 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
3998 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4001 version=$PACKAGE_VERSION
4003 copyright="Copyright (C) 2012 Free Software Foundation, Inc."
4004 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4005 [Short copyright string for this version of Emacs.])
4008 ### Specify what sort of things we'll be editing into Makefile and config.h.
4009 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4011 AC_SUBST(configuration)
4016 AC_SUBST(exec_prefix)
4019 AC_SUBST(sharedstatedir)
4020 AC_SUBST(libexecdir)
4025 AC_SUBST(standardlisppath)
4026 AC_SUBST(locallisppath)
4028 AC_SUBST(x_default_search_path)
4030 AC_SUBST(archlibdir)
4035 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4036 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4037 ## end of LIBX_BASE, but nothing ever set it.
4038 AC_SUBST(LD_SWITCH_X_SITE)
4039 AC_SUBST(C_SWITCH_X_SITE)
4040 AC_SUBST(GNUSTEP_CFLAGS)
4042 ## Used in lwlib/Makefile.in.
4043 AC_SUBST(X_TOOLKIT_TYPE)
4045 AC_SUBST(ns_appbindir)
4046 AC_SUBST(ns_appresdir)
4048 AC_SUBST(GNU_OBJC_CFLAGS)
4049 AC_SUBST(OTHER_FILES)
4051 if test -n "${term_header}"; then
4052 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4053 [Define to the header for the built-in window system.])
4056 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4057 [Define to the canonical Emacs configuration name.])
4058 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${ac_configure_args}",
4059 [Define to the options passed to configure.])
4060 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4061 define this to include extra configuration information.])
4066 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4067 AC_DEFINE(HAVE_X_WINDOWS, 1,
4068 [Define to 1 if you want to use the X window system.])
4070 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o xgselect.o"
4072 if test "$HAVE_XFT" = "yes"; then
4073 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4074 elif test "$HAVE_FREETYPE" = "yes"; then
4075 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4085 if test "${USE_X_TOOLKIT}" != "none" ; then
4087 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4088 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4089 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4090 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4091 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4095 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4096 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4100 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4101 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4102 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4106 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4107 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4110 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4113 AC_SUBST(WIDGET_OBJ)
4116 case "$USE_X_TOOLKIT" in
4117 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4118 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4119 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4121 AC_SUBST(TOOLKIT_LIBW)
4123 if test "$USE_X_TOOLKIT" = "none"; then
4124 LIBXT_OTHER="\$(LIBXSM)"
4125 OLDXMENU_TARGET="really-oldXMenu"
4127 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4128 OLDXMENU_TARGET="really-lwlib"
4130 AC_SUBST(LIBXT_OTHER)
4132 ## The X Menu stuff is present in the X10 distribution, but missing
4133 ## from X11. If we have X10, just use the installed library;
4134 ## otherwise, use our own copy.
4135 if test "${HAVE_X11}" = "yes" ; then
4136 AC_DEFINE(HAVE_X11, 1,
4137 [Define to 1 if you want to use version 11 of X windows.
4138 Otherwise, Emacs expects to use version 10.])
4140 if test "$USE_X_TOOLKIT" = "none"; then
4141 OLDXMENU="\${oldXMenudir}/libXMenu11.a"
4143 OLDXMENU="\${lwlibdir}/liblw.a"
4145 LIBXMENU="\$(OLDXMENU)"
4146 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4147 OLDXMENU_DEPS="\${OLDXMENU} ../src/\${OLDXMENU}"
4149 ## For a syntactically valid Makefile; not actually used for anything.
4150 ## See comments in src/Makefile.in.
4152 ## FIXME This case (!HAVE_X11 && HAVE_X_WINDOWS) is no longer possible(?).
4153 if test "${HAVE_X_WINDOWS}" = "yes"; then
4162 if test "$HAVE_GTK" = "yes" || test "$HAVE_MENUS" != "yes"; then
4169 AC_SUBST(OLDXMENU_TARGET)
4172 AC_SUBST(LIBX_OTHER)
4173 AC_SUBST(OLDXMENU_DEPS)
4175 if test "${HAVE_MENUS}" = "yes" ; then
4176 AC_DEFINE(HAVE_MENUS, 1,
4177 [Define to 1 if you have mouse menus.
4178 (This is automatic if you use X, but the option to specify it remains.)
4179 It is also defined with other window systems that support xmenu.c.])
4182 if test "${GNU_MALLOC}" = "yes" ; then
4183 AC_DEFINE(GNU_MALLOC, 1,
4184 [Define to 1 if you want to use the GNU memory allocator.])
4188 if test "${REL_ALLOC}" = "yes" ; then
4189 AC_DEFINE(REL_ALLOC, 1,
4190 [Define REL_ALLOC if you want to use the relocating allocator for
4193 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4195 AC_SUBST(RALLOC_OBJ)
4197 if test "$opsys" = "cygwin"; then
4198 CYGWIN_OBJ="sheap.o cygw32.o"
4199 ## Cygwin differs because of its unexec().
4201 POST_ALLOC_OBJ=lastfile.o
4204 PRE_ALLOC_OBJ=lastfile.o
4207 AC_SUBST(CYGWIN_OBJ)
4208 AC_SUBST(PRE_ALLOC_OBJ)
4209 AC_SUBST(POST_ALLOC_OBJ)
4211 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4212 # it temporarily reverts them to their pre-pkg-config values,
4213 # because gnulib needs to work with both src (which uses the
4214 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4215 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4216 # and it therefore needs to run in an environment where LIBS does not
4217 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4218 # for some package unrelated to lib-src.
4221 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4222 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4223 gl_ASSERT_NO_GNULIB_POSIXCHECK
4224 gl_ASSERT_NO_GNULIB_TESTS
4230 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4233 ## The -headerpad option tells ld (see man page) to leave room at the
4234 ## end of the header for adding load commands. Needed for dumping.
4235 ## 0x690 is the total size of 30 segment load commands (at 56
4236 ## each); under Cocoa 31 commands are required.
4237 if test "$HAVE_NS" = "yes"; then
4238 libs_nsgui="-framework AppKit"
4244 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4246 ## This is here because src/Makefile.in did some extra fiddling around
4247 ## with LD_SWITCH_SYSTEM. The cpp logic was:
4248 ## #ifndef LD_SWITCH_SYSTEM
4249 ## #if !defined (__GNUC__) && ((defined (BSD_SYSTEM) && !defined (COFF)))
4250 ## Since all the *bsds define LD_SWITCH_SYSTEM, this simplifies to:
4251 ## not using gcc, darwin.
4252 ## Because this was done in src/Makefile.in, the resulting part of
4253 ## LD_SWITCH_SYSTEM was not used in configure (ie, in ac_link).
4254 ## It therefore seems cleaner to put this in LD_SWITCH_SYSTEM_TEMACS,
4255 ## rather than LD_SWITCH_SYSTEM.
4256 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4257 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4260 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4261 ## find X at run-time.
4262 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4263 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4264 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4265 ## had different values in configure (in ac_link) and src/Makefile.in.
4266 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4267 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4269 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4272 if test "$NS_IMPL_GNUSTEP" = "yes"; then
4273 LD_SWITCH_SYSTEM_TEMACS="${LD_SWITCH_SYSTEM_TEMACS} -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES} -lgnustep-gui -lgnustep-base -lobjc -lpthread"
4276 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4282 ## gnu: GNU needs its own crt0.
4283 aix4-2|cygwin|darwin|gnu|hpux*|irix6-5|sol2*|unixware) ORDINARY_LINK=yes ;;
4285 ## On post 1.3 releases of NetBSD, gcc -nostdlib also clears the
4286 ## library search parth, i.e. it won't search /usr/lib for libc and
4287 ## friends. Using -nostartfiles instead avoids this problem, and
4288 ## will also work on earlier NetBSD releases.
4289 netbsd|openbsd) LD_FIRSTFLAG="-nostartfiles" ;;
4291 ## powerpc*: NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp> says
4292 ## MkLinux/LinuxPPC needs this.
4293 ## s390x-* only supports opsys = gnu-linux so it can be added here.
4295 case "$canonical" in
4296 powerpc*|s390x-*) LD_FIRSTFLAG="-nostdlib" ;;
4302 if test "x$ORDINARY_LINK" = "xyes"; then
4305 AC_DEFINE(ORDINARY_LINK, 1, [Define if the C compiler is the linker.])
4307 ## The system files defining neither ORDINARY_LINK nor LD_FIRSTFLAG are:
4308 ## freebsd, gnu-* not on powerpc*|s390x*.
4309 elif test "x$GCC" = "xyes" && test "x$LD_FIRSTFLAG" = "x"; then
4311 ## Versions of GCC >= 2.0 put their library, libgcc.a, in obscure
4312 ## places that are difficult to figure out at make time. Fortunately,
4313 ## these same versions allow you to pass arbitrary flags on to the
4314 ## linker, so there is no reason not to use it as a linker.
4316 ## Well, it is not quite perfect. The "-nostdlib" keeps GCC from
4317 ## searching for libraries in its internal directories, so we have to
4318 ## ask GCC explicitly where to find libgcc.a (LIB_GCC below).
4319 LD_FIRSTFLAG="-nostdlib"
4322 ## FIXME? What setting of EDIT_LDFLAGS should this have?
4323 test "$NS_IMPL_GNUSTEP" = "yes" && LD_FIRSTFLAG="-rdynamic"
4325 AC_SUBST(LD_FIRSTFLAG)
4328 ## FIXME? The logic here is not precisely the same as that above.
4329 ## There is no check here for a pre-defined LD_FIRSTFLAG.
4330 ## Should we only be setting LIB_GCC if LD ~ -nostdlib?
4332 if test "x$GCC" = "xyes" && test "x$ORDINARY_LINK" != "xyes"; then
4335 freebsd|netbsd|openbsd) LIB_GCC= ;;
4338 ## armin76@gentoo.org reported that the lgcc_s flag is necessary to
4339 ## build on ARM EABI under GNU/Linux. (Bug#5518)
4345 ## FIXME? s/gnu-linux.h used to define LIB_GCC as below, then
4346 ## immediately undefine it again and redefine it to empty.
4347 ## Was the C_SWITCH_X_SITE part really necessary?
4348 ## LIB_GCC=`$CC $C_SWITCH_X_SITE -print-libgcc-file-name`
4354 ## Ask GCC where to find libgcc.a.
4355 *) LIB_GCC=`$CC -print-libgcc-file-name 2> /dev/null` ;;
4360 ## Common for all window systems
4361 if test "$window_system" != "none"; then
4362 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4363 AC_DEFINE(HAVE_MOUSE, 1, [Define if you have mouse support.])
4364 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4367 AC_SUBST(WINDOW_SYSTEM_OBJ)
4369 AH_TOP([/* GNU Emacs site configuration template file.
4371 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2012
4372 Free Software Foundation, Inc.
4374 This file is part of GNU Emacs.
4376 GNU Emacs is free software: you can redistribute it and/or modify
4377 it under the terms of the GNU General Public License as published by
4378 the Free Software Foundation, either version 3 of the License, or
4379 (at your option) any later version.
4381 GNU Emacs is distributed in the hope that it will be useful,
4382 but WITHOUT ANY WARRANTY; without even the implied warranty of
4383 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4384 GNU General Public License for more details.
4386 You should have received a copy of the GNU General Public License
4387 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4390 /* No code in Emacs #includes config.h twice, but some bits of code
4391 intended to work with other packages as well (like gmalloc.c)
4392 think they can include it as many times as they like. */
4393 #ifndef EMACS_CONFIG_H
4394 #define EMACS_CONFIG_H
4397 AH_BOTTOM([#include <conf_post.h>
4399 #endif /* EMACS_CONFIG_H */
4408 #### Report on what we decided to do.
4409 #### Report GTK as a toolkit, even if it doesn't use Xt.
4410 #### It makes printing result more understandable as using GTK sets
4411 #### toolkit_scroll_bars to yes by default.
4412 if test "${HAVE_GTK}" = "yes"; then
4413 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
4417 Configured for \`${canonical}'.
4419 Where should the build process find the source code? ${srcdir}
4420 What compiler should emacs be built with? ${CC} ${CFLAGS}
4421 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4422 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4423 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4424 What window system should Emacs use? ${window_system}
4425 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4427 if test -n "${x_includes}"; then
4428 echo " Where do we find X Windows header files? ${x_includes}"
4430 echo " Where do we find X Windows header files? Standard dirs"
4432 if test -n "${x_libraries}"; then
4433 echo " Where do we find X Windows libraries? ${x_libraries}"
4435 echo " Where do we find X Windows libraries? Standard dirs"
4438 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4439 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4440 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4441 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4442 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4443 echo " Does Emacs use -lpng? ${HAVE_PNG}"
4444 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4445 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4447 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4448 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4449 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4450 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4451 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4452 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4453 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4455 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4456 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4457 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
4458 echo " Does Emacs use -lxft? ${HAVE_XFT}"
4460 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
4463 if test -n "${EMACSDATA}"; then
4464 echo " Environment variable EMACSDATA set to: $EMACSDATA"
4466 if test -n "${EMACSDOC}"; then
4467 echo " Environment variable EMACSDOC set to: $EMACSDOC"
4472 if test "$HAVE_NS" = "yes"; then
4474 echo "You must run \"${MAKE-make} install\" in order to test the built application.
4475 The installed application will go to nextstep/Emacs.app and can be
4476 run or moved from there."
4477 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
4478 echo "The application will be fully self-contained."
4480 echo "The lisp resources for the application will be installed under ${prefix}.
4481 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
4482 to run if these resources are not installed."
4487 if test "${opsys}" = "cygwin"; then
4489 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
4495 # Remove any trailing slashes in these variables.
4496 [test "${prefix}" != NONE &&
4497 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
4498 test "${exec_prefix}" != NONE &&
4499 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
4501 if test "$HAVE_NS" = "yes"; then
4502 if test "$NS_IMPL_GNUSTEP" = yes; then
4503 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
4504 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
4506 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
4507 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
4511 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
4512 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
4513 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
4514 dnl (else you get "no `Makefile.am' found for any configure output").
4515 dnl This will work, but you get a config.status that is not quite right
4516 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
4517 dnl That doesn't have any obvious consequences for Emacs, but on the whole
4518 dnl it seems better to just live with the duplication.
4519 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"
4521 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
4522 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
4523 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
4524 leim/Makefile nextstep/Makefile])
4526 dnl test/ is not present in release tarfiles.
4527 opt_makefile=test/automated/Makefile
4529 if test -f $srcdir/${opt_makefile}.in; then
4530 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4531 dnl Again, it's best not to use a variable. Though you can add
4532 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
4533 AC_CONFIG_FILES([test/automated/Makefile])
4537 dnl admin/ may or may not be present.
4538 opt_makefile=admin/unidata/Makefile
4540 if test -f $srcdir/${opt_makefile}.in; then
4541 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4542 AC_CONFIG_FILES([admin/unidata/Makefile])
4546 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
4548 AC_SUBST(SUBDIR_MAKEFILES_IN)
4550 dnl Make the necessary directories, if they don't exist.
4551 AC_CONFIG_COMMANDS([mkdirs], [
4552 for dir in etc lisp ; do
4553 test -d ${dir} || mkdir ${dir}
4557 dnl You might wonder (I did) why epaths.h is generated by running make,
4558 dnl rather than just letting configure generate it from epaths.in.
4559 dnl One reason is that the various paths are not fully expanded (see above);
4560 dnl eg gamedir=${prefix}/var/games/emacs.
4561 dnl Secondly, the GNU Coding standards require that one should be able
4562 dnl to run `make prefix=/some/where/else' and override the values set
4563 dnl by configure. This also explains the `move-if-change' test and
4564 dnl the use of force in the `epaths-force' rule in Makefile.in.
4565 AC_CONFIG_COMMANDS([epaths], [
4566 echo creating src/epaths.h
4567 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
4568 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS"])
4570 AC_CONFIG_COMMANDS([gdbinit], [
4571 if test ! -f src/.gdbinit && test -f $srcdir/src/.gdbinit; then
4572 echo creating src/.gdbinit
4573 echo source $srcdir/src/.gdbinit > src/.gdbinit