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 OPTION_DEFAULT_OFF([xwidgets],[enable use of some gtk widgets it Emacs buffers])
191 ## For the times when you want to build Emacs but don't have
192 ## a suitable makeinfo, and can live without the manuals.
193 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
194 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
196 ## Makefile.in needs the cache file name.
199 ## This is an option because I do not know if all info/man support
200 ## compressed files, nor how to test if they do so.
201 OPTION_DEFAULT_ON([compress-info],[don't compress the installed Info pages])
202 if test $with_compress_info = yes; then
209 AC_ARG_WITH([pkg-config-prog],dnl
210 [AS_HELP_STRING([--with-pkg-config-prog=PATH],
211 [path to pkg-config for finding GTK and librsvg])])
212 if test "X${with_pkg_config_prog}" != X; then
213 if test "${with_pkg_config_prog}" != yes; then
214 PKG_CONFIG="${with_pkg_config_prog}"
219 AC_ARG_WITH([crt-dir],dnl
220 [AS_HELP_STRING([--with-crt-dir=DIR],[directory containing crtn.o etc.
221 The default is /usr/lib, or /usr/lib64 on some platforms.])])
222 CRT_DIR="${with_crt_dir}"
224 AC_ARG_WITH(gameuser,dnl
225 [AS_HELP_STRING([--with-gameuser=USER],[user for shared game score files])])
226 test "X${with_gameuser}" != X && test "${with_gameuser}" != yes \
227 && gameuser="${with_gameuser}"
228 test "X$gameuser" = X && gameuser=games
230 AC_ARG_WITH([gnustep-conf],dnl
231 [AS_HELP_STRING([--with-gnustep-conf=PATH],[path to GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
232 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
233 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
234 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
235 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
237 AC_ARG_ENABLE(ns-self-contained,
238 [AS_HELP_STRING([--disable-ns-self-contained],
239 [disable self contained build under NeXTstep])],
240 EN_NS_SELF_CONTAINED=$enableval,
241 EN_NS_SELF_CONTAINED=yes)
243 AC_ARG_ENABLE(locallisppath,
244 [AS_HELP_STRING([--enable-locallisppath=PATH],
245 [directories Emacs should search for lisp files specific
247 if test "${enableval}" = "no"; then
249 elif test "${enableval}" != "yes"; then
250 locallisppath=${enableval}
253 AC_ARG_ENABLE(checking,
254 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
255 [enable expensive run-time checks. With LIST,
256 enable only specific categories of checks.
257 Categories are: all,yes,no.
258 Flags are: stringbytes, stringoverrun, stringfreelist,
259 xmallocoverrun, conslist, glyphs])],
260 [ac_checking_flags="${enableval}"],[])
261 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
262 for check in $ac_checking_flags
265 # these set all the flags to specific states
266 yes) ac_enable_checking=1 ;;
267 no) ac_enable_checking= ;
268 ac_gc_check_stringbytes= ;
269 ac_gc_check_string_overrun= ;
270 ac_gc_check_string_free_list= ;
271 ac_xmalloc_overrun= ;
272 ac_gc_check_cons_list= ;
274 all) ac_enable_checking=1 ;
275 ac_gc_check_stringbytes=1 ;
276 ac_gc_check_string_overrun=1 ;
277 ac_gc_check_string_free_list=1 ;
278 ac_xmalloc_overrun=1 ;
279 ac_gc_check_cons_list=1 ;
281 # these enable particular checks
282 stringbytes) ac_gc_check_stringbytes=1 ;;
283 stringoverrun) ac_gc_check_string_overrun=1 ;;
284 stringfreelist) ac_gc_check_string_free_list=1 ;;
285 xmallocoverrun) ac_xmalloc_overrun=1 ;;
286 conslist) ac_gc_check_cons_list=1 ;;
287 glyphs) ac_glyphs_debug=1 ;;
288 *) AC_MSG_ERROR(unknown check category $check) ;;
293 if test x$ac_enable_checking != x ; then
294 AC_DEFINE(ENABLE_CHECKING, 1,
295 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
297 if test x$ac_gc_check_stringbytes != x ; then
298 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
299 [Define this temporarily to hunt a bug. If defined, the size of
300 strings is redundantly recorded in sdata structures so that it can
301 be compared to the sizes recorded in Lisp strings.])
303 if test x$ac_gc_check_string_overrun != x ; then
304 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
305 [Define this to check for short string overrun.])
307 if test x$ac_gc_check_string_free_list != x ; then
308 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
309 [Define this to check the string free list.])
311 if test x$ac_xmalloc_overrun != x ; then
312 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
313 [Define this to check for malloc buffer overrun.])
315 if test x$ac_gc_check_cons_list != x ; then
316 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
317 [Define this to check for errors in cons list.])
319 if test x$ac_glyphs_debug != x ; then
320 AC_DEFINE(GLYPH_DEBUG, 1,
321 [Define this to enable glyphs debugging code.])
324 AC_ARG_ENABLE(check-lisp-object-type,
325 [AS_HELP_STRING([--enable-check-lisp-object-type],
326 [enable compile time checks for the Lisp_Object data type.
327 This is useful for development for catching certain types of bugs.])],
328 if test "${enableval}" != "no"; then
329 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
330 [Define this to enable compile time checks for the Lisp_Object data type.])
334 AC_ARG_ENABLE(profiling,
335 [AS_HELP_STRING([--enable-profiling],
336 [build emacs with profiling support.
337 This might not work on all platforms])],
338 [ac_enable_profiling="${enableval}"],[])
339 if test x$ac_enable_profiling != x ; then
340 PROFILING_CFLAGS="-DPROFILING=1 -pg"
344 AC_SUBST(PROFILING_CFLAGS)
346 AC_ARG_ENABLE(autodepend,
347 [AS_HELP_STRING([--enable-autodepend],
348 [automatically generate dependencies to .h-files.
349 Requires GNU Make and Gcc. Enabled if GNU Make and Gcc is
351 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
353 #### Make srcdir absolute, if it isn't already. It's important to
354 #### avoid running the path through pwd unnecessarily, since pwd can
355 #### give you automounter prefixes, which can go away. We do all this
356 #### so Emacs can find its files when run uninstalled.
357 ## Make sure CDPATH doesn't affect cd (in case PWD is relative).
362 ## We may be able to use the $PWD environment variable to make this
363 ## absolute. But sometimes PWD is inaccurate.
364 ## Note: we used to use ${PWD} at the end instead of `pwd`,
365 ## but that tested only for a well-formed and valid PWD,
366 ## it did not object when PWD was well-formed and valid but just wrong.
367 if test ".${PWD}" != "." && test ".`(cd ${PWD} ; sh -c pwd)`" = ".`pwd`" ;
371 srcdir="`(cd ${srcdir}; pwd)`"
374 * ) srcdir="`(cd ${srcdir}; pwd)`" ;;
377 ### Canonicalize the configuration name.
381 configuration=${host_alias-${build_alias-$host}}
383 dnl This used to use changequote, but, apart from `changequote is evil'
384 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
385 dnl the great gob of text. Thus it's not processed for possible expansion.
386 dnl Just make sure the brackets remain balanced.
388 dnl Since Emacs can't find matching pairs of quotes, boundaries are
389 dnl indicated by comments.
393 ### If you add support for a new configuration, add code to this
394 ### switch statement to recognize your configuration name and select
395 ### the appropriate operating system file.
397 ### You would hope that you could choose an s/*.h
398 ### file based on the operating system portion. However, it turns out
399 ### that each s/*.h file is pretty manufacturer-specific.
400 ### So we basically have to have a special case for each
401 ### configuration name.
403 ### As far as handling version numbers on operating systems is
404 ### concerned, make sure things will fail in a fixable way. If
405 ### /etc/MACHINES doesn't say anything about version numbers, be
406 ### prepared to handle anything reasonably. If version numbers
407 ### matter, be sure /etc/MACHINES says something about it.
410 case "${canonical}" in
412 ## GNU/Linux and similar ports
422 ## FreeBSD kernel + glibc based userland
437 ## Apple Darwin / Mac OS X
439 case "${canonical}" in
446 ## Use fink packages if available.
447 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
448 ## if test -d /sw/include && test -d /sw/lib; then
449 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
450 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
454 ## HP 9000 series 700 and 800, running HP/UX
458 hppa*-hp-hpux1[1-9]* )
460 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
464 rs6000-ibm-aix4.[23]* )
467 powerpc-ibm-aix4.[23]* )
470 rs6000-ibm-aix[56]* )
473 powerpc-ibm-aix[56]* )
477 ## Silicon Graphics machines
481 # Without defining _LANGUAGE_C, things get masked out in the headers
482 # so that, for instance, grepping for `free' in stdlib.h fails and
483 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
484 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
489 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
490 | x86_64-*-solaris2* | x86_64-*-sunos5*)
491 case "${canonical}" in
493 amd64-*-*|x86_64-*-*) ;;
497 case "${canonical}" in
498 *-sunos5.6* | *-solaris2.6* )
502 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
504 emacs_check_sunpro_c=yes
506 *-sunos5* | *-solaris* )
508 emacs_check_sunpro_c=yes
511 ## Watch out for a compiler that we know will not work.
512 case "${canonical}" in
513 *-solaris* | *-sunos5* )
514 if [ "x$CC" = x/usr/ucb/cc ]; then
515 ## /usr/ucb/cc doesn't work;
516 ## we should find some other compiler that does work.
524 ## Intel 386 machines where we don't care about the manufacturer.
526 case "${canonical}" in
527 *-cygwin ) opsys=cygwin ;;
528 *-darwin* ) opsys=darwin ;;
529 *-sysv4.2uw* ) opsys=unixware ;;
530 *-sysv5uw* ) opsys=unixware ;;
531 *-sysv5OpenUNIX* ) opsys=unixware ;;
532 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
541 ### If the code above didn't choose an operating system, just choose
542 ### an operating system based on the configuration name. You really
543 ### only want to use this when you have no idea what the right
544 ### operating system is; if you know what operating systems a machine
545 ### runs, it's cleaner to make it explicit in the case statement
547 if test x"${opsys}" = x; then
548 case "${canonical}" in
549 *-gnu* ) opsys=gnu ;;
559 if test $unported = yes; then
560 AC_MSG_ERROR([Emacs hasn't been ported to `${canonical}' systems.
561 Check `etc/MACHINES' for recognized configuration names.])
565 #### Choose a compiler.
567 dnl Sets GCC=yes if using gcc.
571 if test x$GCC = xyes; then
572 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
574 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
577 # Avoid gnulib's threadlib module, as we do threads our own way.
578 AC_DEFUN([gl_THREADLIB])
580 # Initialize gnulib right after choosing the compiler.
581 dnl Amongst other things, this sets AR and ARFLAGS.
584 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
585 # if -g3 works and the user does not specify CFLAGS.
586 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
587 if test "$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 -Wsync-nand" # irrelevant here, and provokes ObjC warning
714 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
716 # Emacs doesn't care about shadowing; see
717 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
720 # The following lines should be removable at some point.
721 nw="$nw -Wstack-protector"
722 nw="$nw -Wstrict-overflow"
723 nw="$nw -Wsuggest-attribute=pure"
725 gl_MANYWARN_ALL_GCC([ws])
726 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
730 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
731 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
732 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
733 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
734 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
735 gl_WARN_ADD([-Wno-format-nonliteral])
737 # In spite of excluding -Wlogical-op above, it is enabled, as of
738 # gcc 4.5.0 20090517.
739 gl_WARN_ADD([-Wno-logical-op])
741 gl_WARN_ADD([-fdiagnostics-show-option])
742 gl_WARN_ADD([-funit-at-a-time])
744 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
745 AH_VERBATIM([FORTIFY_SOURCE],
746 [/* Enable compile-time and run-time bounds-checking, and some warnings,
747 without upsetting glibc 2.15+. */
748 #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
749 # define _FORTIFY_SOURCE 2
752 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
754 # We use a slightly smaller set of warning options for lib/.
755 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
757 nw="$nw -Wunused-macros"
759 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
760 AC_SUBST([GNULIB_WARN_CFLAGS])
765 dnl Some other nice autoconf tests.
766 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
769 dnl if test "x$RANLIB" = x; then
774 AC_PATH_PROG(INSTALL_INFO, install-info, :,
775 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
776 dnl Don't use GZIP, which is used by gzip for additional parameters.
777 AC_PATH_PROG(GZIP_PROG, gzip)
779 if test $opsys = gnu-linux; then
780 AC_PATH_PROG(PAXCTL, paxctl,,
781 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
782 if test "X$PAXCTL" != X; then
783 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
784 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
785 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
786 else AC_MSG_RESULT(no); PAXCTL=""; fi])
790 ## Need makeinfo >= 4.7 (?) to build the manuals.
791 AC_PATH_PROG(MAKEINFO, makeinfo, no)
792 dnl By this stage, configure has already checked for egrep and set EGREP,
793 dnl or exited with an error if no egrep was found.
794 if test "$MAKEINFO" != "no" && \
795 test x"`$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
799 ## Makeinfo is unusual. For a released Emacs, the manuals are
800 ## pre-built, and not deleted by the normal clean rules. makeinfo is
801 ## therefore in the category of "special tools" not normally required, which
802 ## configure does not have to check for (eg autoconf itself).
803 ## In a Bazaar checkout on the other hand, the manuals are not included.
804 ## So makeinfo is a requirement to build from Bazaar, and configure
805 ## should test for it as it does for any other build requirement.
806 ## We use the presence of $srcdir/info/emacs to distinguish a release,
807 ## with pre-built manuals, from a Bazaar checkout.
810 if test "$MAKEINFO" = "no"; then
812 if test "x${with_makeinfo}" = "xno"; then
814 elif test ! -e $srcdir/info/emacs; then
815 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
816 source tree does not seem to have pre-built manuals in the `info' directory.
817 Either install a suitable version of makeinfo, or re-run configure
818 with the `--without-makeinfo' option to build without the manuals.] )
821 AC_SUBST(HAVE_MAKEINFO)
823 dnl Just so that there is only a single place we need to edit.
829 dnl Add our options to ac_link now, after it is set up.
831 if test x$GCC = xyes; then
832 test "x$GCC_LINK_TEST_OPTIONS" != x && \
833 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
835 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
836 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
839 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
840 dnl If we can link with the flag, it shouldn't do any harm anyhow.
841 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
842 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
843 dnl if not built to support GNU ld.
845 late_LDFLAGS=$LDFLAGS
846 if test x$GCC = xyes; then
847 LDFLAGS="$LDFLAGS -Wl,-znocombreloc"
849 LDFLAGS="$LDFLAGS -znocombreloc"
852 AC_MSG_CHECKING([for -znocombreloc])
853 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
854 [AC_MSG_RESULT(yes)],
855 LDFLAGS=$late_LDFLAGS
859 dnl The function dump-emacs will not be defined and temacs will do
860 dnl (load "loadup") automatically unless told otherwise.
861 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
863 your-opsys-here) CANNOT_DUMP=yes ;;
866 test "$CANNOT_DUMP" = "yes" && \
867 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
869 AC_SUBST(CANNOT_DUMP)
874 # MSDOS uses unexcoff.o
875 # MSWindows uses unexw32.o
883 UNEXEC_OBJ=unexmacosx.o
886 UNEXEC_OBJ=unexhp9k800.o
889 # Use the Solaris dldump() function, called from unexsol.c, to dump
890 # emacs, instead of the generic ELF dump code found in unexelf.c.
891 # The resulting binary has a complete symbol table, and is better
892 # for debugging and other observability tools (debuggers, pstack, etc).
894 # If you encounter a problem using dldump(), please consider sending
895 # a message to the OpenSolaris tools-linking mailing list:
896 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
898 # It is likely that dldump() works with older Solaris too, but this has
899 # not been tested, so for now this change is for Solaris 10 or newer.
907 ## Let `ld' find image libs and similar things in /usr/local/lib.
908 ## The system compiler, GCC, has apparently been modified to not
909 ## look there, contrary to what a stock GCC would do.
910 ### It's not our place to do this. See bug#10313#17.
911 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
916 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
917 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
921 ### It's not our place to do this. See bug#10313#17.
922 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
927 ## Han Boetes <han@mijncomputer.nl> says this is necessary,
928 ## otherwise Emacs dumps core on elf systems.
929 LD_SWITCH_SYSTEM="-Z"
932 AC_SUBST(LD_SWITCH_SYSTEM)
934 ac_link="$ac_link $LD_SWITCH_SYSTEM"
936 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
937 ## which has not been defined yet. When this was handled with cpp,
938 ## it was expanded to null when configure sourced the s/*.h file.
939 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
940 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
941 ## (or somesuch), but because it is supposed to go at the _front_
942 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
943 ## Compare with the gnu-linux case below, which added to the end
944 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
945 ## LD_SWITCH_SYSTEM_TEMACS.
948 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
955 AC_CHECK_DECL([__ELF__])
956 if test "$ac_cv_have_decl___ELF__" = "yes"; then
957 ## With ELF, make sure that all common symbols get allocated to in the
958 ## data section. Otherwise, the dump of temacs may miss variables in
959 ## the shared library that have been initialized. For example, with
960 ## GNU libc, __malloc_initialized would normally be resolved to the
961 ## shared library's .bss section, which is fatal.
962 if test "x$GCC" = "xyes"; then
963 C_SWITCH_MACHINE="-fno-common"
965 AC_MSG_ERROR([What gives? Fix me if DEC Unix supports ELF now.])
968 UNEXEC_OBJ=unexalpha.o
972 AC_SUBST(C_SWITCH_MACHINE)
977 ## Some programs in src produce warnings saying certain subprograms
978 ## are too complex and need a MAXMEM value greater than 2000 for
979 ## additional optimization. --nils@exp-math.uni-essen.de
980 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
981 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
982 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
983 ## It is redundant in glibc2, since we define _GNU_SOURCE.
984 AC_SUBST(C_SWITCH_SYSTEM)
989 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
990 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
992 freebsd) LIBS_SYSTEM="-lutil" ;;
994 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
996 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
998 ## Motif needs -lgen.
999 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1001 AC_SUBST(LIBS_SYSTEM)
1004 ### Make sure subsequent tests use flags consistent with the build flags.
1006 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1007 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1009 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1012 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C89 or better.
1013 AC_DEFUN([AC_TYPE_SIZE_T])
1014 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1015 AC_DEFUN([AC_TYPE_UID_T])
1021 dnl Current possibilities handled by sed (aix4-2 -> aix,
1022 dnl gnu-linux -> gnu/linux, etc.):
1023 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1024 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1025 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1027 dnl NB do not use CRT_DIR unquoted here, since it might not be set yet.
1031 START_FILES='pre-crt0.o'
1034 ## Adding -lm confuses the dynamic linker, so omit it.
1036 START_FILES='pre-crt0.o'
1039 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtn.o'
1040 START_FILES='pre-crt0.o $(CRT_DIR)/crt1.o $(CRT_DIR)/crti.o'
1041 SYSTEM_TYPE=berkeley-unix
1043 gnu-linux | gnu-kfreebsd )
1044 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtn.o'
1045 START_FILES='pre-crt0.o $(CRT_DIR)/crt1.o $(CRT_DIR)/crti.o'
1047 hpux10-20 | hpux11 )
1049 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o'
1051 dnl NB this may be adjusted below.
1053 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o'
1054 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o $(CRT_DIR)/crtbegin.o'
1055 SYSTEM_TYPE=berkeley-unix
1059 SYSTEM_TYPE=usg-unix-v
1065 AC_SUBST(START_FILES)
1066 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1067 [The type of system you are compiling for; sets `system-type'.])
1069 dnl Not all platforms use crtn.o files. Check if the current one does.
1072 for file in x $LIB_STANDARD $START_FILES; do
1074 *CRT_DIR*) crt_files="$crt_files `echo $file | sed -e 's|.*/||'`" ;;
1078 if test "x$crt_files" != x; then
1080 ## If user specified a crt-dir, use that unconditionally.
1083 if test "X$CRT_DIR" = "X"; then
1085 CRT_DIR=/usr/lib # default
1087 case "$canonical" in
1088 x86_64-*-linux-gnu* | s390x-*-linux-gnu*)
1089 ## On x86-64 and s390x GNU/Linux distributions, the standard library
1090 ## can be in a variety of places. We only try /usr/lib64 and /usr/lib.
1091 ## For anything else (eg /usr/lib32), it is up the user to specify
1092 ## the location (bug#5655).
1093 ## Test for crtn.o, not just the directory, because sometimes the
1094 ## directory exists but does not have the relevant files (bug#1287).
1095 ## FIXME better to test for binary compatibility somehow.
1096 test -e /usr/lib64/crtn.o && CRT_DIR=/usr/lib64
1099 powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*) CRT_DIR=/usr/lib64 ;;
1103 hpux10-20) CRT_DIR=/lib ;;
1106 test "x${GCC}" = xyes && crt_gcc=yes
1112 for file in $crt_files; do
1114 ## If we're using gcc, try to determine it automatically by asking
1115 ## gcc. [If this doesn't work, CRT_DIR will remain at the
1116 ## system-dependent default from above.]
1117 if test $crt_gcc = yes && test ! -e $CRT_DIR/$file; then
1119 crt_file=`$CC --print-file-name=$file 2>/dev/null`
1122 CRT_DIR=`AS_DIRNAME(["$crt_file"])`
1127 dnl We expect all the files to be in a single directory, so after the
1128 dnl first there is no point asking gcc.
1131 test -e $CRT_DIR/$file || crt_missing="$crt_missing $file"
1134 test "x$crt_missing" = x || \
1135 AC_MSG_ERROR([Required file(s) not found:$crt_missing
1136 Try using the --with-crt-dir option.])
1138 fi # crt_files != ""
1144 if test -f $CRT_DIR/crti.o; then
1146 test -f $CRT_DIR/crtn.o || \
1147 AC_MSG_ERROR([Required file not found: crtn.o])
1149 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o $(CRT_DIR)/crtn.o'
1150 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o $(CRT_DIR)/crti.o $(CRT_DIR)/crtbegin.o'
1156 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1157 pre_PKG_CONFIG_LIBS=$LIBS
1159 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
1161 dnl This function definition taken from Gnome 2.0
1162 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
1163 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
1164 dnl also defines GSTUFF_PKG_ERRORS on error
1165 AC_DEFUN([PKG_CHECK_MODULES], [
1168 if test "$PKG_CONFIG" = "no" ; then
1169 ifelse([$4], , [AC_MSG_ERROR([
1170 *** 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])
1172 PKG_CONFIG_MIN_VERSION=0.9.0
1173 if $PKG_CONFIG --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
1174 AC_MSG_CHECKING(for $2)
1176 if $PKG_CONFIG --exists "$2" 2>&AS_MESSAGE_LOG_FD &&
1177 $1_CFLAGS=`$PKG_CONFIG --cflags "$2" 2>&AS_MESSAGE_LOG_FD` &&
1178 $1_LIBS=`$PKG_CONFIG --libs "$2" 2>&AS_MESSAGE_LOG_FD`; then
1185 $1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1186 $1_LIBS=`AS_ECHO(["$$1_LIBS"]) | sed -e 's,///*,/,g'`
1187 AC_MSG_RESULT([yes CFLAGS='$$1_CFLAGS' LIBS='$$1_LIBS'])
1193 ## If we have a custom action on failure, don't print errors, but
1194 ## do set a variable so people can do so. Do it in a subshell
1195 ## to capture any diagnostics in invoking pkg-config.
1196 $1_PKG_ERRORS=`($PKG_CONFIG --print-errors "$2") 2>&1`
1197 ifelse([$4], ,echo "$$1_PKG_ERRORS",)
1203 echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
1204 echo "*** See http://www.freedesktop.org/software/pkgconfig"
1208 if test $succeeded = yes; then
1209 ifelse([$3], , :, [$3])
1211 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])
1216 if test "${with_sound}" != "no"; then
1217 # Sound support for GNU/Linux and the free BSDs.
1218 AC_CHECK_HEADERS(machine/soundcard.h sys/soundcard.h soundcard.h,
1219 have_sound_header=yes)
1220 # Emulation library used on NetBSD.
1221 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1225 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1226 PKG_CHECK_MODULES(ALSA, $ALSA_MODULES, HAVE_ALSA=yes, HAVE_ALSA=no)
1227 if test $HAVE_ALSA = yes; then
1228 SAVE_CFLAGS="$CFLAGS"
1230 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1231 LIBS="$ALSA_LIBS $LIBS"
1232 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1233 emacs_alsa_normal=yes,
1234 emacs_alsa_normal=no)
1235 if test "$emacs_alsa_normal" != yes; then
1236 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1237 [[snd_lib_error_set_handler (0);]])],
1238 emacs_alsa_subdir=yes,
1239 emacs_alsa_subdir=no)
1240 if test "$emacs_alsa_subdir" != yes; then
1241 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1243 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1246 CFLAGS="$SAVE_CFLAGS"
1248 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1249 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1250 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1253 dnl Define HAVE_SOUND if we have sound support. We know it works and
1254 dnl compiles only on the specified platforms. For others, it
1255 dnl probably doesn't make sense to try.
1256 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1258 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1259 gnu-linux|freebsd|netbsd)
1260 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1265 AC_SUBST(CFLAGS_SOUND)
1268 dnl checks for header files
1269 AC_CHECK_HEADERS_ONCE(
1270 linux/version.h sys/systeminfo.h
1271 fcntl.h coff.h pty.h
1272 sys/vlimit.h sys/resource.h
1273 sys/utsname.h pwd.h utmp.h dirent.h util.h)
1275 AC_MSG_CHECKING(if personality LINUX32 can be set)
1276 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1277 emacs_cv_personality_linux32=yes,
1278 emacs_cv_personality_linux32=no)
1279 AC_MSG_RESULT($emacs_cv_personality_linux32)
1281 if test $emacs_cv_personality_linux32 = yes; then
1282 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1283 [Define to 1 if personality LINUX32 can be set.])
1286 dnl On Solaris 8 there's a compilation warning for term.h because
1287 dnl it doesn't define `bool'.
1288 AC_CHECK_HEADERS(term.h, , , -)
1290 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1292 if test $ac_cv_have_decl_sys_siglist != yes; then
1293 # For Tru64, at least:
1294 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1296 if test $ac_cv_have_decl___sys_siglist = yes; then
1297 AC_DEFINE(sys_siglist, __sys_siglist,
1298 [Define to any substitute for sys_siglist.])
1303 dnl Check for speed_t typedef.
1304 AC_CACHE_CHECK(for speed_t, emacs_cv_speed_t,
1305 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <termios.h>]], [[speed_t x = 1;]])],
1306 emacs_cv_speed_t=yes, emacs_cv_speed_t=no)])
1307 if test $emacs_cv_speed_t = yes; then
1308 AC_DEFINE(HAVE_SPEED_T, 1,
1309 [Define to 1 if `speed_t' is declared by <termios.h>.])
1312 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1313 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1314 #if HAVE_SYS_SOCKET_H
1315 #include <sys/socket.h>
1317 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1318 #if HAVE_SYS_SOCKET_H
1319 #include <sys/socket.h>
1321 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1322 #if HAVE_SYS_SOCKET_H
1323 #include <sys/socket.h>
1326 dnl checks for structure members
1327 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1328 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1329 struct ifreq.ifr_addr,
1330 struct ifreq.ifr_addr.sa_len], , ,
1331 [AC_INCLUDES_DEFAULT
1332 #if HAVE_SYS_SOCKET_H
1333 #include <sys/socket.h>
1339 dnl Check for endianness.
1340 dnl AC_C_BIGENDIAN is done by gnulib.
1342 dnl check for Make feature
1343 dnl AC_PROG_MAKE_SET is done by Automake.
1348 dnl check for GNU Make if we have GCC and autodepend is on.
1349 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1350 AC_MSG_CHECKING([whether we are using GNU Make])
1352 testval=`${MAKE-make} --version 2>/dev/null | grep 'GNU Make'`
1353 if test "x$testval" != x; then
1356 ac_enable_autodepend=no
1358 AC_MSG_RESULT([$HAVE_GNU_MAKE])
1359 if test $HAVE_GNU_MAKE = yes; then
1360 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1361 SAVE_CFLAGS="$CFLAGS"
1362 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1363 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1364 CFLAGS="$SAVE_CFLAGS"
1365 test -f deps.d || ac_enable_autodepend=no
1367 AC_MSG_RESULT([$ac_enable_autodepend])
1369 if test $ac_enable_autodepend = yes; then
1370 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1371 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1372 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1373 deps_frag=autodeps.mk
1376 deps_frag=$srcdir/src/$deps_frag
1379 AC_SUBST_FILE(deps_frag)
1382 lisp_frag=$srcdir/src/lisp.mk
1383 AC_SUBST_FILE(lisp_frag)
1386 dnl checks for operating system services
1387 AC_SYS_LONG_FILE_NAMES
1389 #### Choose a window system.
1391 ## We leave window_system equal to none if
1392 ## we end up building without one. Any new window system should
1393 ## set window_system to an appropriate value and add objects to
1394 ## window-system-specific substs.
1398 if test "$no_x" != yes; then
1402 LD_SWITCH_X_SITE_RPATH=
1403 if test "${x_libraries}" != NONE; then
1404 if test -n "${x_libraries}"; then
1405 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1406 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1408 x_default_search_path=""
1409 x_search_path=${x_libraries}
1410 if test -z "${x_search_path}"; then
1411 x_search_path=/usr/lib
1413 for x_library in `echo ${x_search_path}: | \
1414 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1416 ${x_library}/X11/%L/%T/%N%C%S:\
1417 ${x_library}/X11/%l/%T/%N%C%S:\
1418 ${x_library}/X11/%T/%N%C%S:\
1419 ${x_library}/X11/%L/%T/%N%S:\
1420 ${x_library}/X11/%l/%T/%N%S:\
1421 ${x_library}/X11/%T/%N%S"
1422 if test x"${x_default_search_path}" = x; then
1423 x_default_search_path=${x_search_path}
1425 x_default_search_path="${x_search_path}:${x_default_search_path}"
1429 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1431 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1432 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1435 if test x"${x_includes}" = x; then
1436 bitmapdir=/usr/include/X11/bitmaps
1438 # accumulate include directories that have X11 bitmap subdirectories
1440 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1441 if test -d "${bmd}/X11/bitmaps"; then
1442 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1444 if test -d "${bmd}/bitmaps"; then
1445 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1448 if test ${bmd_acc} != "dummyval"; then
1449 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1456 tmp_CPPFLAGS="$CPPFLAGS"
1457 tmp_CFLAGS="$CFLAGS"
1458 CPPFLAGS="$CPPFLAGS -x objective-c"
1459 CFLAGS="$CFLAGS -x objective-c"
1460 TEMACS_LDFLAGS2="\${LDFLAGS}"
1462 if test "${with_ns}" != no; then
1463 if test "${opsys}" = darwin; then
1465 ns_appdir=`pwd`/nextstep/Emacs.app
1466 ns_appbindir=${ns_appdir}/Contents/MacOS
1467 ns_appresdir=${ns_appdir}/Contents/Resources
1468 ns_appsrc=Cocoa/Emacs.base
1469 elif test -f $GNUSTEP_CONFIG_FILE; then
1471 ns_appdir=`pwd`/nextstep/Emacs.app
1472 ns_appbindir=${ns_appdir}
1473 ns_appresdir=${ns_appdir}/Resources
1474 ns_appsrc=GNUstep/Emacs.base
1475 dnl FIXME sourcing this several times in subshells seems inefficient.
1476 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1477 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1478 dnl I seemed to need these as well with GNUstep-startup 0.25.
1479 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1480 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1481 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1482 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1483 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1484 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1485 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1486 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1487 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1491 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1492 dnl If they had chosen to either define it or not, we could have
1493 dnl just used AC_CHECK_DECL here.
1494 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1495 emacs_cv_objc_exceptions,
1496 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1497 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1501 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1502 if test $emacs_cv_objc_exceptions = yes; then
1503 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1504 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1505 [Define if GNUstep uses ObjC exceptions.])
1506 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1510 dnl This is only used while we test the NS headers, it gets reset below.
1511 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1513 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1514 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1515 files are missing or cannot be compiled.])])
1517 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1519 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1520 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
1523 #error "OSX 10.4 or newer required"
1527 ns_osx_have_104=yes,
1529 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1531 ns_have_nsinteger=yes,
1532 ns_have_nsinteger=no)
1533 if test $ns_osx_have_104 = no; then
1534 AC_MSG_ERROR([`OSX 10.4 or newer is required']);
1536 if test $ns_have_nsinteger = yes; then
1537 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1541 AC_SUBST(TEMACS_LDFLAGS2)
1543 INSTALL_ARCH_INDEP_EXTRA=install-etc
1544 ns_self_contained=no
1547 if test "${HAVE_NS}" = yes; then
1548 if test "$with_toolkit_scroll_bars" = "no"; then
1549 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1552 window_system=nextstep
1553 # set up packaging dirs
1554 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1555 ns_self_contained=yes
1556 prefix=${ns_appresdir}
1557 exec_prefix=${ns_appbindir}
1558 dnl This one isn't really used, only archlibdir is.
1559 libexecdir="\${ns_appbindir}/libexec"
1560 archlibdir="\${ns_appbindir}/libexec"
1561 docdir="\${ns_appresdir}/etc"
1562 etcdir="\${ns_appresdir}/etc"
1563 dnl FIXME maybe set datarootdir instead.
1564 dnl That would also get applications, icons, man.
1565 infodir="\${ns_appresdir}/info"
1566 mandir="\${ns_appresdir}/man"
1567 lispdir="\${ns_appresdir}/lisp"
1568 leimdir="\${ns_appresdir}/leim"
1569 INSTALL_ARCH_INDEP_EXTRA=
1571 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o"
1573 CFLAGS="$tmp_CFLAGS"
1574 CPPFLAGS="$tmp_CPPFLAGS"
1575 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1576 AC_SUBST(ns_self_contained)
1578 AC_SUBST(NS_OBJC_OBJ)
1579 AC_SUBST(LIB_STANDARD)
1584 if test "${with_w32}" != no; then
1585 if test "${opsys}" != "cygwin"; then
1586 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin.])
1588 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1589 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1590 cannot be found.])])
1591 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1592 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1593 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1594 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1595 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1600 if test "${HAVE_W32}" = "yes"; then
1605 ## $window_system is now set to the window system we will
1613 case "${window_system}" in
1618 case "${with_x_toolkit}" in
1619 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1620 motif ) USE_X_TOOLKIT=MOTIF ;;
1622 term_header=gtkutil.h
1623 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1624 dnl USE_X_TOOLKIT is set.
1625 USE_X_TOOLKIT=none ;;
1626 gtk2 ) with_gtk2=yes
1627 term_header=gtkutil.h
1628 USE_X_TOOLKIT=none ;;
1629 gtk3 ) with_gtk3=yes
1630 term_header=gtkutil.h
1631 USE_X_TOOLKIT=none ;;
1632 no ) USE_X_TOOLKIT=none ;;
1633 dnl If user did not say whether to use a toolkit, make this decision later:
1634 dnl use the toolkit if we have gtk, or X11R5 or newer.
1635 * ) USE_X_TOOLKIT=maybe ;;
1639 term_header=nsterm.h
1642 term_header=w32term.h
1646 if test -n "${term_header}"; then
1647 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
1648 [Define to the header for the built-in window system.])
1651 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1652 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1653 if test "$HAVE_XSERVER" = true ||
1654 test -n "$DISPLAY" ||
1655 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1656 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1657 were found. You should install the relevant development files for X
1658 and for the toolkit you want, such as Gtk+, Lesstif or Motif. Also make
1659 sure you have development files for image handling, i.e.
1660 tiff, gif, jpeg, png and xpm.
1661 If you are sure you want Emacs compiled without X window support, pass
1667 ### If we're using X11, we should use the X menu package.
1670 yes ) HAVE_MENUS=yes ;;
1673 # Does the opsystem file prohibit the use of the GNU malloc?
1674 # Assume not, until told otherwise.
1678 [whether malloc is Doug Lea style],
1679 [emacs_cv_var_doug_lea_malloc],
1682 [[#include <malloc.h>
1683 static void hook (void) {}]],
1684 [[malloc_set_state (malloc_get_state ());
1685 __after_morecore_hook = hook;
1686 __malloc_initialize_hook = hook;]])],
1687 [emacs_cv_var_doug_lea_malloc=yes],
1688 [emacs_cv_var_doug_lea_malloc=no])])
1689 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1692 dnl See comments in aix4-2.h about maybe using system malloc there.
1695 ## darwin ld insists on the use of malloc routines in the System framework.
1696 darwin|sol2-10) system_malloc=yes ;;
1699 if test "${system_malloc}" = "yes"; then
1700 AC_DEFINE(SYSTEM_MALLOC, 1, [Define to use system malloc.])
1703 (The GNU allocators don't work with this system configuration.)"
1707 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1708 VMLIMIT_OBJ=vm-limit.o
1710 AC_SUBST(GMALLOC_OBJ)
1711 AC_SUBST(VMLIMIT_OBJ)
1713 if test "$doug_lea_malloc" = "yes" ; then
1714 if test "$GNU_MALLOC" = yes ; then
1716 (Using Doug Lea's new malloc from the GNU C Library.)"
1718 AC_DEFINE(DOUG_LEA_MALLOC, 1,
1719 [Define to 1 if you are using the GNU C Library.])
1721 ## Use mmap directly for allocating larger buffers.
1722 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
1723 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
1724 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
1726 gnu*) REL_ALLOC=no ;;
1730 if test x"${REL_ALLOC}" = x; then
1731 REL_ALLOC=${GNU_MALLOC}
1734 use_mmap_for_buffers=no
1736 cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
1740 if test $use_mmap_for_buffers = yes; then
1741 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
1745 LIBS="$LIBS_SYSTEM $LIBS"
1747 dnl If found, this defines HAVE_LIBDNET, which m/pmax.h checks,
1748 dnl and also adds -ldnet to LIBS, which Autoconf uses for checks.
1749 AC_CHECK_LIB(dnet, dnet_ntoa)
1750 dnl This causes -lresolv to get used in subsequent tests,
1751 dnl which causes failures on some systems such as HPUX 9.
1752 dnl AC_CHECK_LIB(resolv, gethostbyname)
1754 dnl FIXME replace main with a function we actually want from this library.
1755 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
1757 dnl Check if pthreads is available.
1759 AC_CHECK_HEADERS_ONCE(pthread.h)
1760 if test "$ac_cv_header_pthread_h"; then
1761 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
1762 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
1763 dnl testing for pthread_self if Emacs uses gmalloc.c.
1764 if test "$GMALLOC_OBJ" = gmalloc.o; then
1765 emacs_pthread_function=pthread_atfork
1767 emacs_pthread_function=pthread_self
1769 AC_CHECK_LIB(pthread, $emacs_pthread_function, HAVE_PTHREAD=yes)
1771 if test "$HAVE_PTHREAD" = yes; then
1772 case "${canonical}" in
1774 *) LIB_PTHREAD="-lpthread"
1775 LIBS="$LIB_PTHREAD $LIBS" ;;
1777 AC_DEFINE(HAVE_PTHREAD, 1, [Define to 1 if you have pthread (-lpthread).])
1779 AC_SUBST([LIB_PTHREAD])
1781 AC_CHECK_LIB(pthreads, cma_open)
1783 ## Note: when using cpp in s/aix4.2.h, this definition depended on
1784 ## HAVE_LIBPTHREADS. That was not defined earlier in configure when
1785 ## the system file was sourced. Hence the value of LIBS_SYSTEM
1786 ## added to LIBS in configure would never contain the pthreads part,
1787 ## but the value used in Makefiles might. FIXME?
1789 ## -lpthreads seems to be necessary for Xlib in X11R6, and should
1790 ## be harmless on older versions of X where it happens to exist.
1791 test "$opsys" = "aix4-2" && \
1792 test $ac_cv_lib_pthreads_cma_open = yes && \
1793 LIBS_SYSTEM="$LIBS_SYSTEM -lpthreads"
1795 dnl Check for need for bigtoc support on IBM AIX
1799 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1801 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1802 *) gdb_cv_bigtoc=-bbigtoc ;;
1805 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1806 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
1811 # Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
1812 # used for the tests that follow. We set them back to REAL_CFLAGS and
1813 # REAL_CPPFLAGS later on.
1815 REAL_CFLAGS="$CFLAGS"
1816 REAL_CPPFLAGS="$CPPFLAGS"
1818 if test "${HAVE_X11}" = "yes"; then
1819 DEFS="$C_SWITCH_X_SITE $DEFS"
1820 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
1822 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
1823 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
1825 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
1826 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
1827 # but it's more convenient here to set LD_RUN_PATH since this
1828 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
1829 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
1830 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
1834 if test "${opsys}" = "gnu-linux"; then
1835 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
1836 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1837 [[XOpenDisplay ("foo");]])],
1838 [xgnu_linux_first_failure=no],
1839 [xgnu_linux_first_failure=yes])
1840 if test "${xgnu_linux_first_failure}" = "yes"; then
1841 OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
1842 OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
1843 OLD_CPPFLAGS="$CPPFLAGS"
1845 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
1846 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
1847 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
1848 LIBS="$LIBS -b i486-linuxaout"
1849 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1850 [[XOpenDisplay ("foo");]])],
1851 [xgnu_linux_second_failure=no],
1852 [xgnu_linux_second_failure=yes])
1853 if test "${xgnu_linux_second_failure}" = "yes"; then
1854 # If we get the same failure with -b, there is no use adding -b.
1855 # So take it out. This plays safe.
1856 LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
1857 C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
1858 CPPFLAGS="$OLD_CPPFLAGS"
1869 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
1870 # header files included from there.
1871 AC_MSG_CHECKING(for Xkb)
1872 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
1873 #include <X11/XKBlib.h>]],
1874 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
1875 emacs_xkb=yes, emacs_xkb=no)
1876 AC_MSG_RESULT($emacs_xkb)
1877 if test $emacs_xkb = yes; then
1878 AC_DEFINE(HAVE_XKBGETKEYBOARD, 1, [Define to 1 if you have the XkbGetKeyboard function.])
1881 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
1882 XScreenNumberOfScreen)
1885 if test "${window_system}" = "x11"; then
1886 AC_MSG_CHECKING(X11 version 6)
1887 AC_CACHE_VAL(emacs_cv_x11_version_6,
1888 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
1889 [[#if XlibSpecificationRelease < 6
1892 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
1893 if test $emacs_cv_x11_version_6 = yes; then
1894 AC_MSG_RESULT(6 or newer)
1895 AC_DEFINE(HAVE_X11R6, 1,
1896 [Define to 1 if you have the X11R6 or newer version of Xlib.])
1897 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
1898 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
1902 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
1903 [Define if you have usable X11R6-style XIM support.])
1907 AC_MSG_RESULT(before 6)
1912 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
1914 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes"; then
1915 if test "${with_rsvg}" != "no"; then
1916 RSVG_REQUIRED=2.11.0
1917 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
1919 PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, HAVE_RSVG=yes, :)
1920 AC_SUBST(RSVG_CFLAGS)
1923 if test $HAVE_RSVG = yes; then
1924 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
1925 CFLAGS="$CFLAGS $RSVG_CFLAGS"
1926 LIBS="$RSVG_LIBS $LIBS"
1932 if test "${HAVE_X11}" = "yes"; then
1933 if test "${with_imagemagick}" != "no"; then
1934 ## 6.2.8 is the earliest version known to work, but earlier versions
1935 ## might work - let us know if you find one.
1936 ## 6.0.7 does not work. See bug#7955.
1937 IMAGEMAGICK_MODULE="Wand >= 6.2.8"
1938 PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
1939 AC_SUBST(IMAGEMAGICK_CFLAGS)
1940 AC_SUBST(IMAGEMAGICK_LIBS)
1942 if test $HAVE_IMAGEMAGICK = yes; then
1943 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
1944 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
1945 LIBS="$IMAGEMAGICK_LIBS $LIBS"
1946 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
1956 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
1959 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1961 dnl Checks for libraries.
1962 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1963 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
1964 AC_MSG_ERROR($GTK_PKG_ERRORS)
1966 if test "$pkg_check_gtk" = "yes"; then
1967 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
1968 GTK_OBJ=emacsgtkfixed.o
1969 term_header=gtkutil.h
1970 USE_GTK_TOOLKIT="GTK3"
1973 gtk3_pkg_errors="$GTK_PKG_ERRORS "
1977 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
1980 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1982 dnl Checks for libraries.
1983 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1984 if test "$pkg_check_gtk" = "no" &&
1985 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
1987 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
1989 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
1992 if test x"$pkg_check_gtk" = xyes; then
1994 AC_SUBST(GTK_CFLAGS)
1996 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
1997 CFLAGS="$CFLAGS $GTK_CFLAGS"
1998 LIBS="$GTK_LIBS $LIBS"
1999 dnl Try to compile a simple GTK program.
2001 AC_CHECK_FUNCS(gtk_main, GTK_COMPILES=yes)
2002 if test "${GTK_COMPILES}" != "yes"; then
2003 if test "$USE_X_TOOLKIT" != "maybe"; then
2004 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2008 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2009 GTK_OBJ="gtkutil.o $GTK_OBJ"
2011 if $PKG_CONFIG --atleast-version=2.10 gtk+-2.0; then
2014 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2015 closing open displays. This is no problem if you just use
2016 one display, but if you use more than one and close one of them
2026 if test "${HAVE_GTK}" = "yes"; then
2028 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2029 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2030 if test "$with_toolkit_scroll_bars" != no; then
2031 with_toolkit_scroll_bars=yes
2034 dnl Check if we have the old file selection dialog declared and
2035 dnl in the link library. In 2.x it may be in the library,
2036 dnl but not declared if deprecated featured has been selected out.
2037 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2038 HAVE_GTK_FILE_SELECTION=no
2039 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2040 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2041 #include <gtk/gtk.h>])
2042 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2043 AC_CHECK_FUNCS(gtk_file_selection_new)
2047 dnl Check for functions introduced in 2.14 and later.
2048 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2049 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2050 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2051 gtk_orientable_set_orientation \
2052 gtk_window_set_has_resize_grip)
2054 term_header=gtkutil.h
2064 if test "${with_xwidgets}" != "no"; then
2065 echo "xwidgets enabled, checking webkit, and others"
2067 AC_DEFINE(HAVE_XWIDGETS, 1, [Define to 1 if you have xwidgets support.])
2070 # - enable only if gtk/gtk3 enabled
2071 # - webkit, goocanvas, clutter
2072 # - only webkit_osr is good so remove plain webkit laterish
2074 #webkit version for gtk3.
2075 WEBKIT_REQUIRED=1.4.0
2076 WEBKIT_MODULES="webkitgtk-3.0 >= $WEBKIT_REQUIRED"
2078 if test "${with_gtk3}" = "yes"; then
2079 PKG_CHECK_MODULES(WEBKIT, $WEBKIT_MODULES, HAVE_WEBKIT=yes, HAVE_WEBKIT=no)
2080 if test $HAVE_WEBKIT = yes; then
2081 AC_DEFINE(HAVE_WEBKIT_OSR, 1, [Define to 1 if you have webkit_osr support.])
2085 if test "${with_xwdemo}" = "yes"; then
2086 #clutter and goocanvas are just proof of concept so disable for now
2087 CLUTTER_REQUIRED=1.0.0
2088 CLUTTER_MODULES="clutter-gtk-1.0 >= $CLUTTER_REQUIRED"
2090 PKG_CHECK_MODULES(CLUTTER, $CLUTTER_MODULES, HAVE_CLUTTER=yes, HAVE_CLUTTER=no)
2091 if test $HAVE_CLUTTER = yes; then
2092 AC_DEFINE(HAVE_CLUTTER, 1, [Define to 1 if you have clutter support.])
2096 GOOCANVAS_REQUIRED=1.4.0
2097 GOOCANVAS_MODULES="goocanvasgtk-3.0 >= $GOOCANVAS_REQUIRED"
2099 PKG_CHECK_MODULES(GOOCANVAS, $GOOCANVAS_MODULES, HAVE_GOOCANVAS=yes, HAVE_GOOCANVAS=no)
2100 if test $HAVE_GOOCANVAS = yes; then
2101 AC_DEFINE(HAVE_GOOCANVAS, 1, [Define to 1 if you have goocanvas support.])
2106 GIR_MODULES="gobject-introspection-1.0 >= $GIR_REQUIRED"
2107 PKG_CHECK_MODULES(GIR, $GIR_MODULES, HAVE_GIR=yes, HAVE_GIR=no)
2108 if test $HAVE_GIR = yes; then
2109 AC_DEFINE(HAVE_GIR, 1, [Define to 1 if you have GIR support.])
2116 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2117 dnl other platforms.
2120 if test "${with_dbus}" = "yes"; then
2121 PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
2122 if test "$HAVE_DBUS" = yes; then
2123 LIBS="$LIBS $DBUS_LIBS"
2124 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2125 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2126 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2128 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2129 dbus_type_is_valid \
2130 dbus_validate_bus_name \
2131 dbus_validate_path \
2132 dbus_validate_interface \
2133 dbus_validate_member)
2139 dnl GSettings has been tested under GNU/Linux only.
2141 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2142 PKG_CHECK_MODULES(GSETTINGS, gio-2.0 >= 2.26, HAVE_GSETTINGS=yes, HAVE_GSETTINGS=no)
2143 if test "$HAVE_GSETTINGS" = "yes"; then
2144 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2145 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2146 SETTINGS_LIBS="$GSETTINGS_LIBS"
2150 dnl GConf has been tested under GNU/Linux only.
2151 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2153 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2154 PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
2155 if test "$HAVE_GCONF" = yes; then
2156 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2157 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2158 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2159 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2163 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2164 PKG_CHECK_MODULES(GOBJECT, gobject-2.0 >= 2.0, HAVE_GOBJECT=yes, HAVE_GOBJECT=no)
2165 if test "$HAVE_GOBJECT" = "yes"; then
2166 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2167 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2169 SAVE_CFLAGS="$CFLAGS"
2171 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2172 LIBS="$SETTINGS_LIBS $LIBS"
2173 AC_CHECK_FUNCS([g_type_init])
2174 CFLAGS="$SAVE_CFLAGS"
2177 AC_SUBST(SETTINGS_CFLAGS)
2178 AC_SUBST(SETTINGS_LIBS)
2181 dnl SELinux is available for GNU/Linux only.
2184 if test "${with_selinux}" = "yes"; then
2185 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2186 if test "$HAVE_LIBSELINUX" = yes; then
2187 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2188 LIBSELINUX_LIBS=-lselinux
2191 AC_SUBST(LIBSELINUX_LIBS)
2194 HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=no
2195 if test "${with_gnutls}" = "yes" ; then
2196 PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6], HAVE_GNUTLS=yes, HAVE_GNUTLS=no)
2197 if test "${HAVE_GNUTLS}" = "yes"; then
2198 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2201 CFLAGS="$CFLAGS $LIBGNUTLS_CFLAGS"
2202 LIBS="$LIBGNUTLS_LIBS $LIBS"
2203 AC_CHECK_FUNCS(gnutls_certificate_set_verify_function, HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=yes)
2205 if test "${HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY}" = "yes"; then
2206 AC_DEFINE(HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY, 1, [Define if using GnuTLS certificate verification callbacks.])
2210 AC_SUBST(LIBGNUTLS_LIBS)
2211 AC_SUBST(LIBGNUTLS_CFLAGS)
2213 dnl Do not put whitespace before the #include statements below.
2214 dnl Older compilers (eg sunos4 cc) choke on it.
2217 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2218 if test "$with_xaw3d" != no; then
2219 AC_CACHE_VAL(emacs_cv_xaw3d,
2220 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2221 #include <X11/Intrinsic.h>
2222 #include <X11/Xaw3d/Simple.h>]],
2224 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2225 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2226 emacs_cv_xaw3d=no)])
2230 if test $emacs_cv_xaw3d = yes; then
2231 AC_MSG_CHECKING(for xaw3d)
2232 AC_MSG_RESULT([yes; using Lucid toolkit])
2236 AC_DEFINE(HAVE_XAW3D, 1,
2237 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2239 AC_MSG_CHECKING(for xaw3d)
2241 AC_MSG_CHECKING(for libXaw)
2242 AC_CACHE_VAL(emacs_cv_xaw,
2243 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2244 #include <X11/Intrinsic.h>
2245 #include <X11/Xaw/Simple.h>]],
2249 if test $emacs_cv_xaw = yes; then
2250 AC_MSG_RESULT([yes; using Lucid toolkit])
2253 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2254 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2256 AC_MSG_ERROR([No X toolkit could be found.
2257 If you are sure you want Emacs compiled without an X toolkit, pass
2259 to configure. Otherwise, install the development libraries for the toolkit
2260 that you want to use (e.g. Gtk+) and re-run configure.])
2265 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2268 if test "${USE_X_TOOLKIT}" != "none"; then
2269 AC_MSG_CHECKING(X11 toolkit version)
2270 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2271 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2272 [[#if XtSpecificationRelease < 6
2275 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2276 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2277 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2278 AC_MSG_RESULT(6 or newer)
2279 AC_DEFINE(HAVE_X11XTR6, 1,
2280 [Define to 1 if you have the X11R6 or newer version of Xt.])
2281 LIBXTR6="-lSM -lICE"
2283 ## Use libw.a along with X11R6 Xt.
2284 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2287 AC_MSG_RESULT(before 6)
2290 dnl If using toolkit, check whether libXmu.a exists.
2291 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2293 if test x$HAVE_X11XTR6 = xyes; then
2294 LIBS="-lXt -lSM -lICE $LIBS"
2298 AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
2299 test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
2300 dnl ac_cv_lib_Xmu_XmuConvertStandardSelection is also referenced below.
2304 dnl FIXME the logic here seems weird, but this is what cpp was doing.
2305 dnl Why not just test for libxmu in the normal way?
2308 ## These systems don't supply Xmu.
2310 test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
2315 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
2316 if test "${HAVE_X11}" = "yes"; then
2317 if test "${USE_X_TOOLKIT}" != "none"; then
2318 AC_CHECK_LIB(Xext, XShapeQueryExtension)
2323 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2324 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2325 if test -d /usr/include/openmotif; then
2326 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2327 emacs_cv_openmotif=yes
2328 case "$canonical" in
2329 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2330 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2333 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2336 emacs_cv_openmotif=no
2338 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2339 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2340 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2343 Motif version prior to 2.1.
2345 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2346 if test $emacs_cv_motif_version_2_1 = yes; then
2347 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2348 if test x$emacs_cv_openmotif = xyes; then
2349 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2352 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2353 # We put this in CFLAGS temporarily to precede other -I options
2354 # that might be in CFLAGS temporarily.
2355 # We put this in CPPFLAGS where it precedes the other -I options.
2356 OLD_CPPFLAGS=$CPPFLAGS
2358 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2359 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2360 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2362 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2363 if test $emacs_cv_lesstif = yes; then
2364 # Make sure this -I option remains in CPPFLAGS after it is set
2365 # back to REAL_CPPFLAGS.
2366 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2367 # have those other -I options anyway. Ultimately, having this
2368 # directory ultimately in CPPFLAGS will be enough.
2369 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2370 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2373 CPPFLAGS=$OLD_CPPFLAGS
2376 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2377 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2380 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2381 dnl using Motif or Xaw3d is available, and unless
2382 dnl --with-toolkit-scroll-bars=no was specified.
2384 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2385 [Define to 1 if we should use toolkit scroll bars.])dnl
2386 USE_TOOLKIT_SCROLL_BARS=no
2387 if test "${with_toolkit_scroll_bars}" != "no"; then
2388 if test "${USE_X_TOOLKIT}" != "none"; then
2389 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2390 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2392 USE_TOOLKIT_SCROLL_BARS=yes
2393 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2394 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2395 USE_TOOLKIT_SCROLL_BARS=yes
2397 elif test "${HAVE_GTK}" = "yes"; then
2398 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2399 USE_TOOLKIT_SCROLL_BARS=yes
2400 elif test "${HAVE_NS}" = "yes"; then
2401 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2402 USE_TOOLKIT_SCROLL_BARS=yes
2403 elif test "${HAVE_W32}" = "yes"; then
2404 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2405 USE_TOOLKIT_SCROLL_BARS=yes
2409 dnl See if XIM is available.
2410 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2411 #include <X11/Xlib.h>
2412 #include <X11/Xresource.h>]],
2413 [[XIMProc callback;]])],
2415 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2418 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2420 if test "${with_xim}" != "no"; then
2421 AC_DEFINE(USE_XIM, 1,
2422 [Define to 1 if we should use XIM, if it is available.])
2426 if test "${HAVE_XIM}" != "no"; then
2428 if test "$GCC" = yes; then
2429 CFLAGS="$CFLAGS --pedantic-errors"
2431 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2432 #include <X11/Xlib.h>
2433 #include <X11/Xresource.h>]],
2439 XPointer *client_data;
2441 /* If we're not using GCC, it's probably not XFree86, and this is
2442 probably right, but we can't use something like --pedantic-errors. */
2443 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2444 char*, XIMProc, XPointer*);
2446 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2448 [emacs_cv_arg6_star=yes])
2449 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2450 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2451 either XPointer or XPointer*.])dnl
2452 if test "$emacs_cv_arg6_star" = yes; then
2453 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2455 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2460 ### Start of font-backend (under any platform) section.
2461 # (nothing here yet -- this is a placeholder)
2462 ### End of font-backend (under any platform) section.
2464 ### Start of font-backend (under X11) section.
2465 if test "${HAVE_X11}" = "yes"; then
2466 PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
2468 ## Use -lXft if available, unless `--with-xft=no'.
2470 if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2473 if test "x${with_xft}" != "xno"; then
2475 PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
2476 ## Because xftfont.c uses XRenderQueryExtension, we also
2477 ## need to link to -lXrender.
2479 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2480 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2481 OLD_CPPFLAGS="$CPPFLAGS"
2482 OLD_CFLAGS="$CFLAGS"
2484 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2485 CFLAGS="$CFLAGS $XFT_CFLAGS"
2486 XFT_LIBS="-lXrender $XFT_LIBS"
2487 LIBS="$XFT_LIBS $LIBS"
2488 AC_CHECK_HEADER(X11/Xft/Xft.h,
2489 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS))
2491 if test "${HAVE_XFT}" = "yes"; then
2492 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2494 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2496 CPPFLAGS="$OLD_CPPFLAGS"
2497 CFLAGS="$OLD_CFLAGS"
2499 fi # "${HAVE_XFT}" = "yes"
2500 fi # "$HAVE_XFT" != no
2501 fi # "x${with_xft}" != "xno"
2503 ## We used to allow building with FreeType and without Xft.
2504 ## However, the ftx font backend driver is not in good shape.
2505 if test "$HAVE_XFT" != "yes"; then
2506 dnl For the "Does Emacs use" message at the end.
2510 dnl Strict linkers fail with
2511 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2512 dnl if -lfreetype is not specified.
2513 dnl The following is needed to set FREETYPE_LIBS.
2514 PKG_CHECK_MODULES(FREETYPE, freetype2, HAVE_FREETYPE=yes,
2517 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2521 if test "${HAVE_FREETYPE}" = "yes"; then
2522 AC_DEFINE(HAVE_FREETYPE, 1,
2523 [Define to 1 if using the freetype and fontconfig libraries.])
2524 if test "${with_libotf}" != "no"; then
2525 PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
2527 if test "$HAVE_LIBOTF" = "yes"; then
2528 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2529 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2530 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2531 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2532 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2533 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2534 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2538 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2539 dnl Does the new font backend require it, or can it work without it?
2543 if test "${HAVE_LIBOTF}" = yes; then
2544 if test "${with_m17n_flt}" != "no"; then
2545 PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
2546 if test "$HAVE_M17N_FLT" = "yes"; then
2547 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2558 ### End of font-backend (under X11) section.
2560 AC_SUBST(FREETYPE_CFLAGS)
2561 AC_SUBST(FREETYPE_LIBS)
2562 AC_SUBST(FONTCONFIG_CFLAGS)
2563 AC_SUBST(FONTCONFIG_LIBS)
2564 AC_SUBST(LIBOTF_CFLAGS)
2565 AC_SUBST(LIBOTF_LIBS)
2566 AC_SUBST(M17N_FLT_CFLAGS)
2567 AC_SUBST(M17N_FLT_LIBS)
2569 ### Use -lXpm if available, unless `--with-xpm=no'.
2573 if test "${HAVE_W32}" = "yes"; then
2574 if test "${with_xpm}" != "no"; then
2575 SAVE_CPPFLAGS="$CPPFLAGS"
2576 SAVE_LDFLAGS="$LDFLAGS"
2577 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
2578 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
2579 AC_CHECK_HEADER(X11/xpm.h,
2580 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
2581 if test "${HAVE_XPM}" = "yes"; then
2582 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2583 AC_EGREP_CPP(no_return_alloc_pixels,
2584 [#include "X11/xpm.h"
2585 #ifndef XpmReturnAllocPixels
2586 no_return_alloc_pixels
2588 ], HAVE_XPM=no, HAVE_XPM=yes)
2590 if test "${HAVE_XPM}" = "yes"; then
2591 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
2595 CPPFLAGS="$SAVE_CPPFLAGS"
2596 LDFLAGS="$SAVE_LDFLAGS"
2601 if test "${HAVE_XPM}" = "yes"; then
2602 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2607 if test "${HAVE_X11}" = "yes"; then
2608 if test "${with_xpm}" != "no"; then
2609 AC_CHECK_HEADER(X11/xpm.h,
2610 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2611 if test "${HAVE_XPM}" = "yes"; then
2612 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2613 AC_EGREP_CPP(no_return_alloc_pixels,
2614 [#include "X11/xpm.h"
2615 #ifndef XpmReturnAllocPixels
2616 no_return_alloc_pixels
2618 ], HAVE_XPM=no, HAVE_XPM=yes)
2620 if test "${HAVE_XPM}" = "yes"; then
2628 if test "${HAVE_XPM}" = "yes"; then
2629 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2636 ### Use -ljpeg if available, unless `--with-jpeg=no'.
2639 if test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2640 if test "${with_jpeg}" != "no"; then
2641 dnl Checking for jpeglib.h can lose because of a redefinition of
2643 AC_CHECK_HEADER(jerror.h,
2644 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
2647 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2648 if test "${HAVE_JPEG}" = "yes"; then
2649 AC_DEFINE(HAVE_JPEG)
2650 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2651 [#include <jpeglib.h>
2652 version=JPEG_LIB_VERSION
2654 [AC_DEFINE(HAVE_JPEG)],
2655 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2658 if test "${HAVE_JPEG}" = "yes"; then
2664 ### Use -lpng if available, unless `--with-png=no'.
2667 if test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2668 if test "${with_png}" != "no"; then
2669 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
2670 # in /usr/include/libpng.
2671 AC_CHECK_HEADERS(png.h libpng/png.h, break)
2672 if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
2673 AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
2677 if test "${HAVE_PNG}" = "yes"; then
2678 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2679 LIBPNG="-lpng -lz -lm"
2681 AC_CHECK_DECL(png_longjmp,
2683 [AC_DEFINE(PNG_DEPSTRUCT, [],
2684 [Define to empty to suppress deprecation warnings when building
2685 with --enable-gcc-warnings and with libpng versions before 1.5,
2686 which lack png_longjmp.])],
2687 [[#ifdef HAVE_LIBPNG_PNG_H
2688 # include <libpng/png.h>
2697 ### Use -ltiff if available, unless `--with-tiff=no'.
2700 if test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2701 if test "${with_tiff}" != "no"; then
2702 AC_CHECK_HEADER(tiffio.h,
2704 # At least one tiff package requires the jpeg library.
2705 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
2706 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
2709 if test "${HAVE_TIFF}" = "yes"; then
2710 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
2711 dnl FIXME -lz -lm, as per libpng?
2717 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
2720 if test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
2721 || test "${HAVE_W32}" = "yes"; then
2722 AC_CHECK_HEADER(gif_lib.h,
2723 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
2724 # Earlier versions can crash Emacs.
2725 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])
2727 if test "$HAVE_GIF" = yes; then
2729 elif test "$HAVE_GIF" = maybe; then
2730 # If gif_lib.h but no libgif, try libungif.
2731 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
2732 test "$HAVE_GIF" = yes && LIBGIF=-lungif
2735 if test "${HAVE_GIF}" = "yes"; then
2736 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
2741 dnl Check for required libraries.
2742 if test "${HAVE_X11}" = "yes"; then
2745 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
2746 MISSING="libXpm" && WITH_NO="--with-xpm=no"
2747 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
2748 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
2749 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
2750 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
2751 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
2752 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
2753 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
2754 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
2756 if test "X${MISSING}" != X; then
2757 AC_MSG_ERROR([The following required libraries were not found:
2759 Maybe some development libraries/packages are missing?
2760 If you don't want to link with them give
2762 as options to configure])
2766 ### Use -lgpm if available, unless `--with-gpm=no'.
2769 if test "${with_gpm}" != "no"; then
2770 AC_CHECK_HEADER(gpm.h,
2771 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
2773 if test "${HAVE_GPM}" = "yes"; then
2774 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
2780 dnl Check for malloc/malloc.h on darwin
2781 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
2784 ### Use NeXTstep API to implement GUI.
2785 if test "${HAVE_NS}" = "yes"; then
2786 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
2787 if test "${NS_IMPL_COCOA}" = "yes"; then
2788 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
2790 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
2791 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
2792 # See also .m.o rule in Makefile.in */
2793 # FIXME: are all these flags really needed? Document here why. */
2794 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
2795 ## Extra CFLAGS applied to src/*.m files.
2796 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"
2798 # We also have mouse menus.
2803 if test "${HAVE_W32}" = "yes"; then
2807 ### Use session management (-lSM -lICE) if available
2810 if test "${HAVE_X11}" = "yes"; then
2811 AC_CHECK_HEADER(X11/SM/SMlib.h,
2812 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
2814 if test "${HAVE_X_SM}" = "yes"; then
2815 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
2819 *) LIBS="$LIBXSM $LIBS" ;;
2825 ### Use libxml (-lxml2) if available
2827 if test "${with_xml2}" != "no"; then
2828 ### I'm not sure what the version number should be, so I just guessed.
2829 PKG_CHECK_MODULES(LIBXML2, libxml-2.0 > 2.6.17, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2830 if test "${HAVE_LIBXML2}" = "yes"; then
2831 LIBS="$LIBXML2_LIBS $LIBS"
2832 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2833 if test "${HAVE_LIBXML2}" = "yes"; then
2834 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
2841 AC_SUBST(LIBXML2_LIBS)
2842 AC_SUBST(LIBXML2_CFLAGS)
2844 # If netdb.h doesn't declare h_errno, we must declare it by hand.
2845 AC_CACHE_CHECK(whether netdb declares h_errno,
2846 emacs_cv_netdb_declares_h_errno,
2847 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
2848 [[return h_errno;]])],
2849 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
2850 if test $emacs_cv_netdb_declares_h_errno = yes; then
2851 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
2854 # sqrt and other floating-point functions such as fmod and frexp
2855 # are found in -lm on most systems.
2856 AC_CHECK_LIB(m, sqrt)
2858 # Check for mail-locking functions in a "mail" library. Probably this should
2859 # have the same check as for liblockfile below.
2860 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
2861 if test $have_mail = yes; then
2863 LIBS="$LIBS_MAIL $LIBS"
2864 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
2868 dnl Debian, at least:
2869 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
2870 if test $have_lockfile = yes; then
2871 LIBS_MAIL=-llockfile
2872 LIBS="$LIBS_MAIL $LIBS"
2873 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
2875 # If we have the shared liblockfile, assume we must use it for mail
2876 # locking (e.g. Debian). If we couldn't link against liblockfile
2877 # (no liblockfile.a installed), ensure that we don't need to.
2878 dnl This works for files generally, not just executables.
2879 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
2880 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
2881 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
2882 if test $ac_cv_prog_liblockfile = yes; then
2883 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
2884 This probably means that movemail could lose mail.
2885 There may be a `development' package to install containing liblockfile.])
2888 AC_CHECK_HEADERS_ONCE(maillock.h)
2891 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
2892 ## interlock access to the mail spool. The alternative is a lock file named
2893 ## /usr/spool/mail/$USER.lock.
2896 aix4-2) mail_lock="lockf" ;;
2898 gnu|freebsd|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
2900 ## On GNU/Linux systems, both methods are used by various mail programs.
2901 ## I assume most people are using newer mailers that have heard of flock.
2902 ## Change this if you need to.
2903 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
2904 ## configure gets the right answers, and that means *NOT* using flock.
2905 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
2906 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
2907 ## Debian maintainer hasn't provided a clean fix for Emacs.
2908 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
2909 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
2910 ## correct logic. -- fx
2911 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
2912 ## liblockfile is a Free Software replacement for libmail, used on
2913 ## Debian systems and elsewhere. -rfr.
2916 if test $have_mail = yes || test $have_lockfile = yes; then
2917 test $ac_cv_header_maillock_h = yes && mail_lock=no
2923 case "$mail_lock" in
2924 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
2926 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
2928 *) BLESSMAIL_TARGET="need-blessmail" ;;
2930 AC_SUBST(BLESSMAIL_TARGET)
2933 AC_CHECK_FUNCS(gethostname \
2934 closedir getrusage get_current_dir_name \
2936 fpathconf select euidaccess getpagesize setlocale \
2937 utimes getrlimit setrlimit getcwd shutdown getaddrinfo \
2938 strsignal setitimer \
2939 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
2940 gai_strerror mkstemp getline getdelim fsync sync \
2941 difftime posix_memalign \
2942 getpwent endpwent getgrent endgrent \
2944 cfmakeraw cfsetspeed copysign __executable_start)
2946 dnl getwd appears to be buggy on SVR4.2, so we don't use it.
2947 if test $opsys = unixware; then
2948 dnl In case some other test ends up checking for getwd.
2949 AC_DEFINE(BROKEN_GETWD, 1, [Define if getwd should not be used.])
2951 AC_CHECK_FUNCS(getwd)
2954 ## Eric Backus <ericb@lsid.hp.com> says, HP-UX 9.x on HP 700 machines
2955 ## has a broken `rint' in some library versions including math library
2956 ## version number A.09.05.
2957 ## You can fix the math library by installing patch number PHSS_4630.
2958 ## But we can fix it more reliably for Emacs by just not using rint.
2959 ## We also skip HAVE_RANDOM - see comments in src/conf_post.h.
2962 *) AC_CHECK_FUNCS(random rint) ;;
2965 dnl Cannot use AC_CHECK_FUNCS
2966 AC_CACHE_CHECK([for __builtin_unwind_init],
2967 emacs_cv_func___builtin_unwind_init,
2968 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
2969 emacs_cv_func___builtin_unwind_init=yes,
2970 emacs_cv_func___builtin_unwind_init=no)])
2971 if test $emacs_cv_func___builtin_unwind_init = yes; then
2972 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
2973 [Define to 1 if you have the `__builtin_unwind_init' function.])
2976 AC_CHECK_HEADERS_ONCE(sys/un.h)
2981 AC_CHECK_FUNCS(grantpt)
2983 # PTY-related GNU extensions.
2984 AC_CHECK_FUNCS(getpt posix_openpt)
2986 # Check this now, so that we will NOT find the above functions in ncurses.
2987 # That is because we have not set up to link ncurses in lib-src.
2988 # It's better to believe a function is not available
2989 # than to expect to find it in ncurses.
2990 # Also we need tputs and friends to be able to build at all.
2991 AC_MSG_CHECKING([for library containing tputs])
2992 # Run a test program that contains a call to tputs, a call that is
2993 # never executed. This tests whether a pre-'main' dynamic linker
2994 # works with the library. It's too much trouble to actually call
2995 # tputs in the test program, due to portability hassles. When
2996 # cross-compiling, assume the test program will run if it links.
2997 AC_DEFUN([tputs_link_source], [
2999 [[extern void tputs (const char *, int, int (*)(int));
3000 int main (int argc, char **argv)
3003 tputs (argv[0], 0, 0);
3007 # Maybe curses should be tried earlier?
3008 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3009 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3011 if test -z "$tputs_library"; then
3015 LIBS_TERMCAP=-l$tputs_library
3017 LIBS="$LIBS_TERMCAP $LIBS"
3019 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3020 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3022 if test "X$msg" != Xno; then
3026 AC_MSG_RESULT([$msg])
3027 if test "X$msg" = Xno; then
3028 AC_MSG_ERROR([The required function `tputs' was not found in any library.
3029 The following libraries were tried (in order):
3030 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3031 Please try installing whichever of these libraries is most appropriate
3032 for your system, together with its header files.
3033 For example, a libncurses-dev(el) or similar package.])
3036 ## Use termcap instead of terminfo?
3037 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3039 ## FIXME? In the cases below where we unconditionally set
3040 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3041 ## if that was found above to have tputs.
3042 ## Should we use the gnu* logic everywhere?
3044 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3045 ## The ncurses library has been moved out of the System framework in
3046 ## Mac OS X 10.2. So if configure detects it, set the command-line
3047 ## option to use it.
3048 darwin) LIBS_TERMCAP="-lncurses" ;;
3050 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3053 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3054 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3055 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3056 [[#if __FreeBSD_version < 400000
3059 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3061 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3063 if test $emacs_cv_freebsd_terminfo = yes; then
3064 LIBS_TERMCAP="-lncurses"
3067 LIBS_TERMCAP="-ltermcap"
3072 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3074 LIBS_TERMCAP="-ltermcap"
3078 openbsd) LIBS_TERMCAP="-lncurses" ;;
3080 ## hpux: Make sure we get select from libc rather than from libcurses
3081 ## because libcurses on HPUX 10.10 has a broken version of select.
3082 ## We used to use -lc -lcurses, but this may be cleaner.
3083 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3084 # set that way, now it uses the default). Isn't this a contradiction?
3085 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3089 TERMCAP_OBJ=tparam.o
3090 if test $TERMINFO = yes; then
3091 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3092 TERMCAP_OBJ=terminfo.o
3094 AC_SUBST(LIBS_TERMCAP)
3095 AC_SUBST(TERMCAP_OBJ)
3098 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3099 # On Darwin, res_init appears not to be useful: see bug#562 and
3100 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3103 if test $opsys != darwin; then
3105 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3106 #include <arpa/nameser.h>
3107 #include <resolv.h>]],
3108 [[return res_init();]])],
3109 have_res_init=yes, have_res_init=no)
3110 if test "$have_res_init" = no; then
3112 LIBS="$LIBS -lresolv"
3113 AC_MSG_CHECKING(for res_init with -lresolv)
3114 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3115 #include <arpa/nameser.h>
3116 #include <resolv.h>]],
3117 [[return res_init();]])],
3118 have_res_init=yes, have_res_init=no)
3119 AC_MSG_RESULT($have_res_init)
3120 if test "$have_res_init" = yes ; then
3126 if test "$have_res_init" = yes; then
3127 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3131 # Do we need the Hesiod library to provide the support routines?
3132 dnl FIXME? Should we be skipping this on Darwin too?
3134 if test "$with_hesiod" != no ; then
3135 # Don't set $LIBS here -- see comments above. FIXME which comments?
3136 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3137 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3138 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3139 if test "$resolv" = yes ; then
3144 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3145 hesiod=yes, :, $RESOLVLIB)])
3147 if test x"$hesiod" = xyes; then
3148 AC_DEFINE(HAVE_LIBHESIOD, 1,
3149 [Define to 1 if you have the hesiod library (-lhesiod).])
3155 # Do we need libresolv (due to res_init or Hesiod)?
3156 if test "$resolv" = yes && test $opsys != darwin; then
3157 AC_DEFINE(HAVE_LIBRESOLV, 1,
3158 [Define to 1 if you have the resolv library (-lresolv).])
3165 # These tell us which Kerberos-related libraries to use.
3172 if test "${with_kerberos}" != no; then
3173 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3174 if test $have_com_err = yes; then
3175 COM_ERRLIB=-lcom_err
3176 LIBS="$COM_ERRLIB $LIBS"
3177 AC_DEFINE(HAVE_LIBCOM_ERR, 1, [Define to 1 if you have the `com_err' library (-lcom_err).])
3179 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3180 if test $have_crypto = yes; then
3182 LIBS="$CRYPTOLIB $LIBS"
3183 AC_DEFINE(HAVE_LIBCRYPTO, 1, [Define to 1 if you have the `crypto' library (-lcrypto).])
3185 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3186 if test $have_k5crypto = yes; then
3187 CRYPTOLIB=-lk5crypto
3188 LIBS="$CRYPTOLIB $LIBS"
3189 AC_DEFINE(HAVE_LIBK5CRYPTO, 1, [Define to 1 if you have the `k5crypto' library (-lk5crypto).])
3191 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3192 if test $have_krb5=yes; then
3194 LIBS="$KRB5LIB $LIBS"
3195 AC_DEFINE(HAVE_LIBKRB5, 1, [Define to 1 if you have the `krb5' library (-lkrb5).])
3197 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3198 if test "${with_kerberos5}" = no; then
3199 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3200 if test $have_des425 = yes; then
3202 LIBS="$DESLIB $LIBS"
3203 AC_DEFINE(HAVE_LIBDES425, 1, [Define to 1 if you have the `des425' library (-ldes425).])
3205 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3206 if test $have_des = yes; then
3208 LIBS="$DESLIB $LIBS"
3209 AC_DEFINE(HAVE_LIBDES, 1, [Define to 1 if you have the `des' library (-ldes).])
3212 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3213 if test $have_krb4 = yes; then
3215 LIBS="$KRB4LIB $LIBS"
3216 AC_DEFINE(HAVE_LIBKRB4, 1, [Define to 1 if you have the `krb4' library (-lkrb4).])
3218 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3219 if test $have_krb = yes; then
3221 LIBS="$KRB4LIB $LIBS"
3222 AC_DEFINE(HAVE_LIBKRB, 1, [Define to 1 if you have the `krb' library (-lkrb).])
3227 if test "${with_kerberos5}" != no; then
3228 AC_CHECK_HEADERS(krb5.h,
3229 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3230 [#include <krb5.h>])])
3232 AC_CHECK_HEADERS(des.h,,
3233 [AC_CHECK_HEADERS(kerberosIV/des.h,,
3234 [AC_CHECK_HEADERS(kerberos/des.h)])])
3235 AC_CHECK_HEADERS(krb.h,,
3236 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3237 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3239 AC_CHECK_HEADERS(com_err.h)
3242 AC_SUBST(COM_ERRLIB)
3248 AC_CHECK_FUNCS_ONCE(tzset)
3249 AC_MSG_CHECKING(whether localtime caches TZ)
3250 AC_CACHE_VAL(emacs_cv_localtime_cache,
3251 [if test x$ac_cv_func_tzset = xyes; then
3252 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3253 char TZ_GMT0[] = "TZ=GMT0";
3254 char TZ_PST8[] = "TZ=PST8";
3257 time_t now = time ((time_t *) 0);
3258 int hour_GMT0, hour_unset;
3259 if (putenv (TZ_GMT0) != 0)
3261 hour_GMT0 = localtime (&now)->tm_hour;
3263 hour_unset = localtime (&now)->tm_hour;
3264 if (putenv (TZ_PST8) != 0)
3266 if (localtime (&now)->tm_hour == hour_GMT0)
3269 if (localtime (&now)->tm_hour != hour_unset)
3272 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3273 [# If we have tzset, assume the worst when cross-compiling.
3274 emacs_cv_localtime_cache=yes])
3276 # If we lack tzset, report that localtime does not cache TZ,
3277 # since we can't invalidate the cache if we don't have tzset.
3278 emacs_cv_localtime_cache=no
3280 AC_MSG_RESULT($emacs_cv_localtime_cache)
3281 if test $emacs_cv_localtime_cache = yes; then
3282 AC_DEFINE(LOCALTIME_CACHE, 1,
3283 [Define to 1 if localtime caches TZ.])
3287 AC_CHECK_FUNC(socket, , ok_so_far=no)
3288 if test $ok_so_far = yes; then
3289 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3291 if test $ok_so_far = yes; then
3292 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3294 if test $ok_so_far = yes; then
3295 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3296 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3297 [Define to 1 if you have inet sockets.])
3300 if test -f /usr/lpp/X11/bin/smt.exp; then
3301 AC_DEFINE(HAVE_AIX_SMT_EXP, 1,
3302 [Define to 1 if the file /usr/lpp/X11/bin/smt.exp exists.])
3305 AC_MSG_CHECKING(whether system supports dynamic ptys)
3306 if test -d /dev/pts && ls -d /dev/ptmx > /dev/null 2>&1 ; then
3308 AC_DEFINE(HAVE_DEV_PTMX, 1, [Define to 1 if dynamic ptys are supported.])
3313 dnl Check for a Solaris 2.4 vfork bug that Autoconf misses (through 2.69).
3314 dnl This can be removed once we assume Autoconf 2.70.
3316 *-solaris2.4 | *-solaris2.4.*)
3317 dnl Disable the Autoconf-generated vfork test.
3318 : ${ac_cv_func_vfork_works=no};;
3323 AC_CHECK_FUNCS(snprintf)
3325 dnl Adapted from Haible's version.
3326 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3327 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3328 [[char* cs = nl_langinfo(CODESET);]])],
3329 emacs_cv_langinfo_codeset=yes,
3330 emacs_cv_langinfo_codeset=no)
3332 if test $emacs_cv_langinfo_codeset = yes; then
3333 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3334 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3339 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3340 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3341 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3342 if test "$emacs_cv_c_restrict_arr" = yes; then
3343 AC_DEFINE(__restrict_arr, __restrict,
3344 [Define to compiler's equivalent of C99 restrict keyword in array
3345 declarations. Define as empty for no equivalent.])
3348 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3349 dnl how the tty code is related to POSIX and/or other versions of termios.
3350 dnl The following looks like a useful start.
3352 dnl AC_SYS_POSIX_TERMIOS
3353 dnl if test $ac_cv_sys_posix_termios = yes; then
3354 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3355 dnl and macros for terminal control.])
3356 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3359 dnl Turned on June 1996 supposing nobody will mind it.
3360 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3361 in the full name stands for the login id.])
3363 dnl Every platform that uses configure (ie every non-MS platform)
3364 dnl supports this. There is a create-lockfiles option you can
3365 dnl customize if you do not want the lock files to be written.
3366 dnl So it is not clear that this #define still needs to exist.
3367 AC_DEFINE(CLASH_DETECTION, 1, [Define if you want lock files to be written,
3368 so that Emacs can tell instantly when you try to modify a file that
3369 someone else has modified in his/her Emacs.])
3371 dnl Everybody supports this, except MS.
3372 dnl Seems like the kind of thing we should be testing for, though.
3373 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3374 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3376 dnl Everybody supports this, except MS-DOS.
3377 dnl Seems like the kind of thing we should be testing for, though.
3378 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3379 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3380 4.2-compatible sockets.])
3382 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3384 AC_DEFINE(NULL_DEVICE, ["/dev/null"], [Name of the file to open to get
3385 a null file, or a data sink.])
3387 AC_DEFINE(SEPCHAR, [':'], [Character that separates PATH elements.])
3389 dnl Everybody supports this, except MS-DOS.
3390 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3392 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3395 AC_DEFINE(DIRECTORY_SEP, ['/'],
3396 [Character that separates directories in a file name.])
3398 dnl Only used on MS platforms.
3399 AH_TEMPLATE(DEVICE_SEP, [Character that separates a device in a file name.])
3401 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
3402 [Returns true if character is a device separator.])
3404 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
3405 [Returns true if character is a directory separator.])
3407 dnl On MS, this also accepts IS_DEVICE_SEP.
3408 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
3409 [Returns true if character is any form of separator.])
3412 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
3416 dnl Unfortunately without libXmu we cannot support EditRes.
3417 if test x$ac_cv_lib_Xmu_XmuConvertStandardSelection != xyes; then
3418 AC_DEFINE(NO_EDITRES, 1)
3423 dnl Assar Westerlund <assar@sics.se> says this is necessary for
3424 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
3425 AC_DEFINE(NO_EDITRES, 1)
3431 irix6-5 | sol2* | unixware )
3432 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
3433 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
3434 dnl need the constant to dimension an array. So wire in the appropriate
3436 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
3440 emacs_broken_SIGIO=no
3443 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
3444 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
3445 hpux* | irix6-5 | openbsd | sol2* | unixware )
3446 emacs_broken_SIGIO=yes
3450 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
3451 dnl the way this system works, libc functions that return malloced
3452 dnl memory use the libc malloc implementation. Calling xfree or
3453 dnl xrealloc on the results of such functions results in a crash.
3455 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
3456 dnl but that does not currently work on this system.
3458 dnl It is possible to completely override the malloc implementation on
3459 dnl AIX, but that involves putting the malloc functions in a shared
3460 dnl library and setting the MALLOCTYPE environment variable to point to
3461 dnl that shared library.
3463 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
3464 dnl to avoid a crash just use the Emacs implementation for that function.
3466 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
3467 dnl of this file, so that we do not check for get_current_dir_name
3468 dnl on AIX. But that might be fragile if something else ends
3469 dnl up testing for get_current_dir_name as a dependency.
3470 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
3471 get_current_dir_name should not be used.])
3475 dnl Circumvent a bug in FreeBSD. In the following sequence of
3476 dnl writes/reads on a PTY, read(2) returns bogus data:
3478 dnl write(2) 1022 bytes
3479 dnl write(2) 954 bytes, get EAGAIN
3480 dnl read(2) 1024 bytes in process_read_output
3481 dnl read(2) 11 bytes in process_read_output
3483 dnl That is, read(2) returns more bytes than have ever been written
3484 dnl successfully. The 1033 bytes read are the 1022 bytes written
3485 dnl successfully after processing (for example with CRs added if the
3486 dnl terminal is set up that way which it is here). The same bytes will
3487 dnl be seen again in a later read(2), without the CRs.
3488 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
3489 work around an issue when reading from a PTY.])
3495 dnl FIXME Can't we test if this exists (eg /proc/$$)?
3496 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
3501 darwin | freebsd | netbsd | openbsd )
3502 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
3503 close a pty to make it a controlling terminal (it is already a
3504 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
3508 dnl FIXME Surely we can test for this rather than hard-code it.
3510 netbsd | openbsd) sound_device="/dev/audio" ;;
3511 *) sound_device="/dev/dsp" ;;
3515 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
3516 [Name of the default sound device.])
3519 dnl Emacs can read input using SIGIO and buffering characters itself,
3520 dnl or using CBREAK mode and making C-g cause SIGINT.
3521 dnl The choice is controlled by the variable interrupt_input.
3523 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
3525 dnl Emacs uses the presence of the USABLE_SIGIO macro
3526 dnl to indicate whether or not signal-driven I/O is possible. It uses
3527 dnl INTERRUPT_INPUT to decide whether to use it by default.
3529 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
3530 dnl CBREAK mode has two disadvantages
3531 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
3532 dnl I hear that in system V this problem does not exist.
3533 dnl 2) Control-G causes output to be discarded.
3534 dnl I do not know whether this can be fixed in system V.
3536 dnl Another method of doing input is planned but not implemented.
3537 dnl It would have Emacs fork off a separate process
3538 dnl to read the input and send it to the true Emacs process
3541 darwin | gnu-linux | gnu-kfreebsd )
3542 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
3547 dnl If the system's imake configuration file defines `NeedWidePrototypes'
3548 dnl as `NO', we must define NARROWPROTO manually. Such a define is
3549 dnl generated in the Makefile generated by `xmkmf'. If we don't define
3550 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
3551 dnl taking float or double parameters.
3553 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
3554 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
3555 file defines `NeedWidePrototypes' as `NO'.])
3560 dnl Used in process.c, this must be a loop, even if it only runs once.
3561 dnl (Except on SGI; see below. Take that, clarity and consistency!)
3562 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
3563 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
3564 dnl trying suffixes 0-16.
3565 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
3566 first PTY, if PTYs are supported.])
3567 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
3568 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
3569 end of a PTY, if non-standard.])
3570 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
3571 end of a PTY, if non-standard.])
3575 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
3576 dnl You allocate a pty by opening /dev/ptc to get the master side.
3577 dnl To get the name of the slave side, you just ttyname() the master side.
3578 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
3579 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
3583 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3584 dnl multi-line AC_DEFINEs are hard. :(
3585 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)])
3586 AC_DEFINE(PTY_NAME_SPRINTF, [])
3587 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3590 dnl FIXME? Maybe use same as freebsd - see bug#12040.
3592 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3593 dnl Not used, because PTY_ITERATION is defined.
3594 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3595 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
3596 dnl But we don't have to block SIGCHLD because it is blocked in the
3597 dnl implementation of grantpt.
3598 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (0)])
3599 AC_DEFINE(PTY_NAME_SPRINTF, [])
3600 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3604 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3607 gnu-linux | gnu-kfreebsd | freebsd | netbsd )
3609 if test "x$ac_cv_func_grantpt" = xyes; then
3610 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
3611 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3612 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
3613 dnl to prevent sigchld_handler from intercepting the child's death.
3614 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); }])
3615 dnl if HAVE_POSIX_OPENPT
3616 if test "x$ac_cv_func_posix_openpt" = xyes; then
3617 AC_DEFINE(PTY_OPEN, [fd = posix_openpt (O_RDWR | O_NOCTTY)])
3618 AC_DEFINE(PTY_NAME_SPRINTF, [])
3620 elif test "x$ac_cv_func_getpt" = xyes; then
3621 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
3622 AC_DEFINE(PTY_NAME_SPRINTF, [])
3624 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
3627 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3632 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3633 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
3634 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
3638 dnl It looks like this cannot be right, because it is not a loop.
3639 dnl However, process.c actually does this:
3645 dnl which presumably makes it OK, since irix == sgi (?).
3646 dnl FIXME it seems like this special treatment is unnecessary?
3647 dnl Why can't irix use a single-trip loop like eg cygwin?
3648 AC_DEFINE(PTY_ITERATION, [])
3649 dnl Not used, because PTY_ITERATION is defined.
3650 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
3651 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); }])
3652 dnl No need to get the pty name at all.
3653 AC_DEFINE(PTY_NAME_SPRINTF, [])
3654 dnl No need to use sprintf to get the tty name--we get that from _getpty.
3655 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3659 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
3660 dnl from intercepting that death. If any child but grantpt's should die
3661 dnl within, it should be caught after sigrelse(2).
3662 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); }])
3666 dnl Comments are as per sol2*.
3667 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); }])
3674 dnl This change means that we don't loop through allocate_pty too
3675 dnl many times in the (rare) event of a failure.
3676 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
3677 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
3678 dnl Push various streams modules onto a PTY channel. Used in process.c.
3679 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.])
3684 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
3685 "typing" a signal character on the pty.])
3688 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
3689 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
3690 aix4-2 | cygwin | gnu | irix6-5 | freebsd | netbsd | openbsd )
3691 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3694 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
3695 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
3696 gnu-linux | gnu-kfreebsd )
3698 AC_MSG_CHECKING([for signals via characters])
3699 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3700 #include <linux/version.h>
3701 #if LINUX_VERSION_CODE < 0x20400
3702 # error "Linux version too old"
3704 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
3706 AC_MSG_RESULT([$emacs_signals_via_chars])
3707 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3712 dnl Used in vm-limit.c
3713 AH_TEMPLATE(DATA_START, [Address of the start of the data segment.])
3714 dnl Used in lisp.h, emacs.c, mem-limits.h
3715 dnl NEWS.18 describes this as "a number which contains
3716 dnl the high bits to be inclusive or'ed with pointers that are unpacked."
3717 AH_TEMPLATE(DATA_SEG_BITS, [Extra bits to be or'd in with any pointers
3718 stored in a Lisp_Object.])
3719 dnl if Emacs uses fewer than 32 bits for the value field of a LISP_OBJECT.
3723 dnl libc defines data_start.
3724 AC_DEFINE(DATA_START, [({ extern int data_start; (char *) &data_start; })])
3728 dnl The data segment on this machine always starts at address 0x40000000.
3729 AC_DEFINE(DATA_START, [0x40000000])
3730 AC_DEFINE(DATA_SEG_BITS, [0x40000000])
3733 AC_DEFINE(DATA_START, [0x10000000])
3734 AC_DEFINE(DATA_SEG_BITS, [0x10000000])
3739 AH_TEMPLATE(ULIMIT_BREAK_VALUE, [Undocumented.])
3740 AH_TEMPLATE(TAB3, [Undocumented.])
3743 darwin) AC_DEFINE(TAB3, OXTABS) ;;
3745 gnu | freebsd | netbsd | openbsd )
3746 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
3747 AC_DEFINE(TAB3, OXTABS)
3750 gnu-linux | gnu-kfreebsd )
3751 dnl libc-linux/sysdeps/linux/i386/ulimit.c says that due to shared
3752 dnl library, we cannot get the maximum address for brk.
3753 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3757 ]], [[]])], AC_DEFINE(ULIMIT_BREAK_VALUE, [(32*1024*1024)]), [])
3759 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3763 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
3764 [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)],
3765 [Mark a secondary stack, like the register stack on the ia64.]), [])
3769 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
3770 run_time_remap; for HPUX.])
3774 dnl Ulimit(UL_GMEMLIM) is busted...
3775 AC_DEFINE(ULIMIT_BREAK_VALUE, [0x14000000])
3780 dnl These won't be used automatically yet. We also need to know, at least,
3781 dnl that the stack is continuous.
3782 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
3783 registers relevant for conservative garbage collection in the jmp_buf.])
3785 AH_TEMPLATE(GC_MARK_STACK, [Define to GC_USE_GCPROS_AS_BEFORE if
3786 conservative garbage collection is not known to work.])
3790 aix4-2 | hpux* | unixware)
3791 dnl Conservative garbage collection has not been tested, so for now
3792 dnl play it safe and stick with the old-fashioned way of marking.
3793 AC_DEFINE(GC_MARK_STACK, [GC_USE_GCPROS_AS_BEFORE])
3796 dnl Not all the architectures are tested, but there are Debian packages
3797 dnl for SCM and/or Guile on them, so the technique must work. See also
3798 dnl comments in alloc.c concerning setjmp and gcc.
3799 dnl Fixme: it's probably safe to just use the GCC conditional below.
3800 gnu-linux | gnu-kfreebsd )
3801 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3802 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
3803 || defined __alpha__ || defined __mips__ || defined __s390__ \
3804 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
3805 || defined __ia64__ || defined __sh__
3808 # error "setjmp not known to work on this arch"
3810 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1),
3811 AC_DEFINE(GC_MARK_STACK, [GC_USE_GCPROS_AS_BEFORE]) )
3816 if test x$GCC = xyes; then
3817 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
3818 AC_DEFINE(GC_SETJMP_WORKS, 1)
3821 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
3822 freebsd | netbsd | openbsd | irix6-5 | sol2* )
3823 AC_DEFINE(GC_SETJMP_WORKS, 1)
3828 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
3831 [[#include <setjmp.h>
3835 _longjmp (j, 1);]])],
3836 [emacs_cv_func__setjmp=yes],
3837 [emacs_cv_func__setjmp=no])])
3838 if test $emacs_cv_func__setjmp = yes; then
3839 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
3841 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
3844 [[#include <setjmp.h>
3847 if (! sigsetjmp (j, 1))
3848 siglongjmp (j, 1);]])],
3849 [emacs_cv_func_sigsetjmp=yes],
3850 [emacs_cv_func_sigsetjmp=no])])
3851 if test $emacs_cv_func_sigsetjmp = yes; then
3852 AC_DEFINE([HAVE_SIGSETJMP], 1,
3853 [Define to 1 if sigsetjmp and siglongjmp work.
3854 The value of this symbol is irrelevant if HAVE__SETJMP is defined.])
3860 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
3861 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
3862 dnl and this is all we need.
3863 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
3870 dnl Used in xfaces.c.
3871 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
3872 some systems, where it requires time.h.])
3877 dnl Define symbols to identify the version of Unix this is.
3878 dnl Define all the symbols that apply correctly.
3879 AH_TEMPLATE(BSD4_2, [Define if the system is compatible with BSD 4.2.])
3880 AH_TEMPLATE(BSD_SYSTEM, [Define if the system is compatible with BSD 4.2.])
3881 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
3882 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
3883 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
3884 AH_TEMPLATE(USG5, [Define if the system is compatible with System V.])
3885 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
3891 dnl This symbol should be defined on AIX Version 3 ???????
3892 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3894 # error "_AIX not defined"
3896 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
3900 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
3904 dnl BSD4_3 and BSD4_4 are already defined in sys/param.h.
3905 AC_DEFINE(BSD4_2, [])
3906 AC_DEFINE(BSD_SYSTEM, [])
3907 dnl More specific than the above two. We cannot use __APPLE__ as this
3908 dnl may not be defined on non-OSX Darwin, and we cannot define DARWIN
3909 dnl here because Panther and lower CoreFoundation.h uses DARWIN to
3910 dnl distinguish OS X from pure Darwin.
3911 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
3915 AC_DEFINE(BSD4_2, [])
3916 dnl Hack to avoid calling AC_PREPROC_IFELSE multiple times.
3917 dnl Would not be needed with autoconf >= 2.67, where the
3918 dnl preprocessed output is accessible in "conftest.i".
3919 AC_DEFINE(BSD_SYSTEM_AHB, 1, [Define if AH_BOTTOM should change BSD_SYSTEM.])
3922 gnu | netbsd | openbsd )
3923 AC_DEFINE(BSD4_2, [])
3924 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3926 # error "BSD_SYSTEM not defined"
3928 ]], [[]])], [], AC_DEFINE(BSD_SYSTEM, 43) )
3931 gnu-linux | gnu-kfreebsd )
3933 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
3939 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
3945 AC_DEFINE(USG5_4, [])
3946 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
3952 AC_DEFINE(USG5_4, [])
3953 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
3959 AC_DEFINE(USG5_4, [])
3963 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
3966 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
3967 emacs_cv_usable_FIONREAD=no
3972 [AC_LANG_PROGRAM([[#include <sys/types.h>
3973 #include <sys/ioctl.h>
3975 # include <sys/filio.h>
3978 [[int foo = ioctl (0, FIONREAD, &foo);]])],
3979 [emacs_cv_usable_FIONREAD=yes],
3980 [emacs_cv_usable_FIONREAD=no])
3983 if test $emacs_cv_usable_FIONREAD = yes; then
3984 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
3986 if test $emacs_broken_SIGIO = no; then
3987 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
3989 [AC_LANG_PROGRAM([[#include <fcntl.h>
3992 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
3993 [emacs_cv_usable_SIGIO=yes],
3994 [emacs_cv_usable_SIGIO=no])],
3995 [emacs_cv_usable_SIGIO=yes],
3996 [emacs_cv_usable_SIGIO=no])
3997 if test $emacs_cv_usable_SIGIO = yes; then
3998 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4005 dnl Emacs supplies its own malloc, but glib (part of Gtk+) calls
4006 dnl memalign and on Cygwin, that becomes the Cygwin-supplied memalign.
4007 dnl As malloc is not the Cygwin malloc, the Cygwin memalign always
4008 dnl returns ENOSYS. A workaround is to set G_SLICE=always-malloc. */
4010 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
4011 G_SLICE environment variable to "always-malloc" at startup, if
4016 dnl It works to open the pty's tty in the parent (Emacs), then
4017 dnl close and reopen it in the child.
4018 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4019 works to open a pty's tty in the parent process, then close and
4020 reopen it in the child.])
4024 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4025 use VSUSP instead of VSWTCH.])
4029 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4034 # Set up the CFLAGS for real compilation, so we can substitute it.
4035 CFLAGS="$REAL_CFLAGS"
4036 CPPFLAGS="$REAL_CPPFLAGS"
4038 ## Hack to detect a buggy GCC version.
4039 if test "x$GCC" = xyes \
4040 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4041 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4042 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4043 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4046 version=$PACKAGE_VERSION
4048 copyright="Copyright (C) 2012 Free Software Foundation, Inc."
4049 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4050 [Short copyright string for this version of Emacs.])
4053 ### Specify what sort of things we'll be editing into Makefile and config.h.
4054 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4056 AC_SUBST(configuration)
4061 AC_SUBST(exec_prefix)
4064 AC_SUBST(sharedstatedir)
4065 AC_SUBST(libexecdir)
4070 AC_SUBST(standardlisppath)
4071 AC_SUBST(locallisppath)
4073 AC_SUBST(x_default_search_path)
4075 AC_SUBST(archlibdir)
4080 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4081 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4082 ## end of LIBX_BASE, but nothing ever set it.
4083 AC_SUBST(LD_SWITCH_X_SITE)
4084 AC_SUBST(C_SWITCH_X_SITE)
4085 AC_SUBST(GNUSTEP_CFLAGS)
4087 ## Used in lwlib/Makefile.in.
4088 AC_SUBST(X_TOOLKIT_TYPE)
4090 AC_SUBST(ns_appbindir)
4091 AC_SUBST(ns_appresdir)
4093 AC_SUBST(GNU_OBJC_CFLAGS)
4094 AC_SUBST(OTHER_FILES)
4096 if test -n "${term_header}"; then
4097 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4098 [Define to the header for the built-in window system.])
4101 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4102 [Define to the canonical Emacs configuration name.])
4103 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${ac_configure_args}",
4104 [Define to the options passed to configure.])
4105 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4106 define this to include extra configuration information.])
4111 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4112 AC_DEFINE(HAVE_X_WINDOWS, 1,
4113 [Define to 1 if you want to use the X window system.])
4115 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o xgselect.o"
4117 if test "$HAVE_XFT" = "yes"; then
4118 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4119 elif test "$HAVE_FREETYPE" = "yes"; then
4120 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4130 if test "${USE_X_TOOLKIT}" != "none" ; then
4132 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4133 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4134 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4135 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4136 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4140 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4141 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4145 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4146 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4147 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4151 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4152 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4155 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4158 AC_SUBST(WIDGET_OBJ)
4161 case "$USE_X_TOOLKIT" in
4162 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4163 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4164 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS -lXcomposite" ;;
4166 AC_SUBST(TOOLKIT_LIBW)
4168 if test "$USE_X_TOOLKIT" = "none"; then
4169 LIBXT_OTHER="\$(LIBXSM)"
4170 OLDXMENU_TARGET="really-oldXMenu"
4172 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4173 OLDXMENU_TARGET="really-lwlib"
4175 AC_SUBST(LIBXT_OTHER)
4177 ## The X Menu stuff is present in the X10 distribution, but missing
4178 ## from X11. If we have X10, just use the installed library;
4179 ## otherwise, use our own copy.
4180 if test "${HAVE_X11}" = "yes" ; then
4181 AC_DEFINE(HAVE_X11, 1,
4182 [Define to 1 if you want to use version 11 of X windows.
4183 Otherwise, Emacs expects to use version 10.])
4185 if test "$USE_X_TOOLKIT" = "none"; then
4186 OLDXMENU="\${oldXMenudir}/libXMenu11.a"
4188 OLDXMENU="\${lwlibdir}/liblw.a"
4190 LIBXMENU="\$(OLDXMENU)"
4191 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4192 OLDXMENU_DEPS="\${OLDXMENU} ../src/\${OLDXMENU}"
4194 ## For a syntactically valid Makefile; not actually used for anything.
4195 ## See comments in src/Makefile.in.
4197 ## FIXME This case (!HAVE_X11 && HAVE_X_WINDOWS) is no longer possible(?).
4198 if test "${HAVE_X_WINDOWS}" = "yes"; then
4207 if test "$HAVE_GTK" = "yes" || test "$HAVE_MENUS" != "yes"; then
4214 AC_SUBST(OLDXMENU_TARGET)
4217 AC_SUBST(LIBX_OTHER)
4218 AC_SUBST(OLDXMENU_DEPS)
4220 if test "${HAVE_MENUS}" = "yes" ; then
4221 AC_DEFINE(HAVE_MENUS, 1,
4222 [Define to 1 if you have mouse menus.
4223 (This is automatic if you use X, but the option to specify it remains.)
4224 It is also defined with other window systems that support xmenu.c.])
4227 if test "${GNU_MALLOC}" = "yes" ; then
4228 AC_DEFINE(GNU_MALLOC, 1,
4229 [Define to 1 if you want to use the GNU memory allocator.])
4233 if test "${REL_ALLOC}" = "yes" ; then
4234 AC_DEFINE(REL_ALLOC, 1,
4235 [Define REL_ALLOC if you want to use the relocating allocator for
4238 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4240 AC_SUBST(RALLOC_OBJ)
4242 if test "$opsys" = "cygwin"; then
4243 CYGWIN_OBJ="sheap.o cygw32.o"
4244 ## Cygwin differs because of its unexec().
4246 POST_ALLOC_OBJ=lastfile.o
4249 PRE_ALLOC_OBJ=lastfile.o
4252 AC_SUBST(CYGWIN_OBJ)
4253 AC_SUBST(PRE_ALLOC_OBJ)
4254 AC_SUBST(POST_ALLOC_OBJ)
4256 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4257 # it temporarily reverts them to their pre-pkg-config values,
4258 # because gnulib needs to work with both src (which uses the
4259 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4260 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4261 # and it therefore needs to run in an environment where LIBS does not
4262 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4263 # for some package unrelated to lib-src.
4266 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4267 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4268 gl_ASSERT_NO_GNULIB_POSIXCHECK
4269 gl_ASSERT_NO_GNULIB_TESTS
4275 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4278 ## The -headerpad option tells ld (see man page) to leave room at the
4279 ## end of the header for adding load commands. Needed for dumping.
4280 ## 0x690 is the total size of 30 segment load commands (at 56
4281 ## each); under Cocoa 31 commands are required.
4282 if test "$HAVE_NS" = "yes"; then
4283 libs_nsgui="-framework AppKit"
4289 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4291 ## This is here because src/Makefile.in did some extra fiddling around
4292 ## with LD_SWITCH_SYSTEM. The cpp logic was:
4293 ## #ifndef LD_SWITCH_SYSTEM
4294 ## #if !defined (__GNUC__) && ((defined (BSD_SYSTEM) && !defined (COFF)))
4295 ## Since all the *bsds define LD_SWITCH_SYSTEM, this simplifies to:
4296 ## not using gcc, darwin.
4297 ## Because this was done in src/Makefile.in, the resulting part of
4298 ## LD_SWITCH_SYSTEM was not used in configure (ie, in ac_link).
4299 ## It therefore seems cleaner to put this in LD_SWITCH_SYSTEM_TEMACS,
4300 ## rather than LD_SWITCH_SYSTEM.
4301 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4302 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4305 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4306 ## find X at run-time.
4307 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4308 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4309 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4310 ## had different values in configure (in ac_link) and src/Makefile.in.
4311 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4312 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4314 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4317 if test "$NS_IMPL_GNUSTEP" = "yes"; then
4318 LD_SWITCH_SYSTEM_TEMACS="${LD_SWITCH_SYSTEM_TEMACS} -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES} -lgnustep-gui -lgnustep-base -lobjc -lpthread"
4321 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4327 ## gnu: GNU needs its own crt0.
4328 aix4-2|cygwin|darwin|gnu|hpux*|irix6-5|sol2*|unixware) ORDINARY_LINK=yes ;;
4330 ## On post 1.3 releases of NetBSD, gcc -nostdlib also clears the
4331 ## library search parth, i.e. it won't search /usr/lib for libc and
4332 ## friends. Using -nostartfiles instead avoids this problem, and
4333 ## will also work on earlier NetBSD releases.
4334 netbsd|openbsd) LD_FIRSTFLAG="-nostartfiles" ;;
4336 ## powerpc*: NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp> says
4337 ## MkLinux/LinuxPPC needs this.
4338 ## s390x-* only supports opsys = gnu-linux so it can be added here.
4340 case "$canonical" in
4341 powerpc*|s390x-*) LD_FIRSTFLAG="-nostdlib" ;;
4347 if test "x$ORDINARY_LINK" = "xyes"; then
4350 AC_DEFINE(ORDINARY_LINK, 1, [Define if the C compiler is the linker.])
4352 ## The system files defining neither ORDINARY_LINK nor LD_FIRSTFLAG are:
4353 ## freebsd, gnu-* not on powerpc*|s390x*.
4354 elif test "x$GCC" = "xyes" && test "x$LD_FIRSTFLAG" = "x"; then
4356 ## Versions of GCC >= 2.0 put their library, libgcc.a, in obscure
4357 ## places that are difficult to figure out at make time. Fortunately,
4358 ## these same versions allow you to pass arbitrary flags on to the
4359 ## linker, so there is no reason not to use it as a linker.
4361 ## Well, it is not quite perfect. The "-nostdlib" keeps GCC from
4362 ## searching for libraries in its internal directories, so we have to
4363 ## ask GCC explicitly where to find libgcc.a (LIB_GCC below).
4364 LD_FIRSTFLAG="-nostdlib"
4367 ## FIXME? What setting of EDIT_LDFLAGS should this have?
4368 test "$NS_IMPL_GNUSTEP" = "yes" && LD_FIRSTFLAG="-rdynamic"
4370 AC_SUBST(LD_FIRSTFLAG)
4373 ## FIXME? The logic here is not precisely the same as that above.
4374 ## There is no check here for a pre-defined LD_FIRSTFLAG.
4375 ## Should we only be setting LIB_GCC if LD ~ -nostdlib?
4377 if test "x$GCC" = "xyes" && test "x$ORDINARY_LINK" != "xyes"; then
4380 freebsd|netbsd|openbsd) LIB_GCC= ;;
4383 ## armin76@gentoo.org reported that the lgcc_s flag is necessary to
4384 ## build on ARM EABI under GNU/Linux. (Bug#5518)
4390 ## FIXME? s/gnu-linux.h used to define LIB_GCC as below, then
4391 ## immediately undefine it again and redefine it to empty.
4392 ## Was the C_SWITCH_X_SITE part really necessary?
4393 ## LIB_GCC=`$CC $C_SWITCH_X_SITE -print-libgcc-file-name`
4399 ## Ask GCC where to find libgcc.a.
4400 *) LIB_GCC=`$CC -print-libgcc-file-name 2> /dev/null` ;;
4405 ## Common for all window systems
4406 if test "$window_system" != "none"; then
4407 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4408 AC_DEFINE(HAVE_MOUSE, 1, [Define if you have mouse support.])
4409 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4412 AC_SUBST(WINDOW_SYSTEM_OBJ)
4414 AH_TOP([/* GNU Emacs site configuration template file.
4416 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2012
4417 Free Software Foundation, Inc.
4419 This file is part of GNU Emacs.
4421 GNU Emacs is free software: you can redistribute it and/or modify
4422 it under the terms of the GNU General Public License as published by
4423 the Free Software Foundation, either version 3 of the License, or
4424 (at your option) any later version.
4426 GNU Emacs is distributed in the hope that it will be useful,
4427 but WITHOUT ANY WARRANTY; without even the implied warranty of
4428 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4429 GNU General Public License for more details.
4431 You should have received a copy of the GNU General Public License
4432 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4435 /* No code in Emacs #includes config.h twice, but some bits of code
4436 intended to work with other packages as well (like gmalloc.c)
4437 think they can include it as many times as they like. */
4438 #ifndef EMACS_CONFIG_H
4439 #define EMACS_CONFIG_H
4442 AH_BOTTOM([#include <conf_post.h>
4444 #endif /* EMACS_CONFIG_H */
4453 #### Report on what we decided to do.
4454 #### Report GTK as a toolkit, even if it doesn't use Xt.
4455 #### It makes printing result more understandable as using GTK sets
4456 #### toolkit_scroll_bars to yes by default.
4457 if test "${HAVE_GTK}" = "yes"; then
4458 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
4462 Configured for \`${canonical}'.
4464 Where should the build process find the source code? ${srcdir}
4465 What compiler should emacs be built with? ${CC} ${CFLAGS}
4466 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4467 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4468 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4469 What window system should Emacs use? ${window_system}
4470 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4472 if test -n "${x_includes}"; then
4473 echo " Where do we find X Windows header files? ${x_includes}"
4475 echo " Where do we find X Windows header files? Standard dirs"
4477 if test -n "${x_libraries}"; then
4478 echo " Where do we find X Windows libraries? ${x_libraries}"
4480 echo " Where do we find X Windows libraries? Standard dirs"
4483 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4484 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4485 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4486 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4487 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4488 echo " Does Emacs use -lpng? ${HAVE_PNG}"
4489 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4490 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4492 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4493 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4494 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4495 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4496 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4497 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4498 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4500 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4501 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4502 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
4503 echo " Does Emacs use -lxft? ${HAVE_XFT}"
4505 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
4507 echo " Does Emacs support Xwidgets? ${HAVE_XWIDGETS}"
4508 echo " Does xwidgets support webkit(requires gtk3)? ${HAVE_WEBKIT}"
4509 echo " Does xwidgets support gobject introspection? ${HAVE_GIR}"
4510 echo " Does xwidgets support clutter(demo code)? ${HAVE_CLUTTER}"
4511 echo " Does xwidgets support goocanvas(demo code)? ${HAVE_GOOCANVAS}"
4514 if test -n "${EMACSDATA}"; then
4515 echo " Environment variable EMACSDATA set to: $EMACSDATA"
4517 if test -n "${EMACSDOC}"; then
4518 echo " Environment variable EMACSDOC set to: $EMACSDOC"
4523 if test "$HAVE_NS" = "yes"; then
4525 echo "You must run \"${MAKE-make} install\" in order to test the built application.
4526 The installed application will go to nextstep/Emacs.app and can be
4527 run or moved from there."
4528 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
4529 echo "The application will be fully self-contained."
4531 echo "The lisp resources for the application will be installed under ${prefix}.
4532 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
4533 to run if these resources are not installed."
4538 if test "${opsys}" = "cygwin"; then
4540 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
4546 # Remove any trailing slashes in these variables.
4547 [test "${prefix}" != NONE &&
4548 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
4549 test "${exec_prefix}" != NONE &&
4550 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
4552 if test "$HAVE_NS" = "yes"; then
4553 if test "$NS_IMPL_GNUSTEP" = yes; then
4554 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
4555 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
4557 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
4558 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
4562 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
4563 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
4564 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
4565 dnl (else you get "no `Makefile.am' found for any configure output").
4566 dnl This will work, but you get a config.status that is not quite right
4567 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
4568 dnl That doesn't have any obvious consequences for Emacs, but on the whole
4569 dnl it seems better to just live with the duplication.
4570 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"
4572 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
4573 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
4574 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
4575 leim/Makefile nextstep/Makefile])
4577 dnl test/ is not present in release tarfiles.
4578 opt_makefile=test/automated/Makefile
4580 if test -f $srcdir/${opt_makefile}.in; then
4581 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4582 dnl Again, it's best not to use a variable. Though you can add
4583 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
4584 AC_CONFIG_FILES([test/automated/Makefile])
4588 dnl admin/ may or may not be present.
4589 opt_makefile=admin/unidata/Makefile
4591 if test -f $srcdir/${opt_makefile}.in; then
4592 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4593 AC_CONFIG_FILES([admin/unidata/Makefile])
4597 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
4599 AC_SUBST(SUBDIR_MAKEFILES_IN)
4601 dnl Make the necessary directories, if they don't exist.
4602 AC_CONFIG_COMMANDS([mkdirs], [
4603 for dir in etc lisp ; do
4604 test -d ${dir} || mkdir ${dir}
4608 dnl You might wonder (I did) why epaths.h is generated by running make,
4609 dnl rather than just letting configure generate it from epaths.in.
4610 dnl One reason is that the various paths are not fully expanded (see above);
4611 dnl eg gamedir=${prefix}/var/games/emacs.
4612 dnl Secondly, the GNU Coding standards require that one should be able
4613 dnl to run `make prefix=/some/where/else' and override the values set
4614 dnl by configure. This also explains the `move-if-change' test and
4615 dnl the use of force in the `epaths-force' rule in Makefile.in.
4616 AC_CONFIG_COMMANDS([epaths], [
4617 echo creating src/epaths.h
4618 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
4619 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS"])
4621 AC_CONFIG_COMMANDS([gdbinit], [
4622 if test ! -f src/.gdbinit && test -f $srcdir/src/.gdbinit; then
4623 echo creating src/.gdbinit
4624 echo source $srcdir/src/.gdbinit > src/.gdbinit