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, 24.2.90)
26 AC_CONFIG_HEADER(src/config.h:src/config.in)
27 AC_CONFIG_SRCDIR(src/lisp.h)
28 AC_CONFIG_AUX_DIR(build-aux)
29 dnl Fairly arbitrary, older versions might work too.
30 AM_INIT_AUTOMAKE(1.11)
32 dnl Support for --program-prefix, --program-suffix and
33 dnl --program-transform-name options
36 dnl It is important that variables on the RHS not be expanded here,
37 dnl hence the single quotes. This is per the GNU coding standards, see
38 dnl (autoconf) Installation Directory Variables
39 dnl See also epaths.h below.
40 lispdir='${datadir}/emacs/${version}/lisp'
41 leimdir='${datadir}/emacs/${version}/leim'
42 standardlisppath='${lispdir}:${leimdir}'
43 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
44 '${datadir}/emacs/site-lisp'
45 lisppath='${locallisppath}:${standardlisppath}'
46 etcdir='${datadir}/emacs/${version}/etc'
47 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
48 docdir='${datadir}/emacs/${version}/etc'
49 gamedir='${localstatedir}/games/emacs'
51 dnl Special option to disable the most of other options.
53 [AS_HELP_STRING([--without-all],
54 [omit almost all features and build
55 small executable with minimal dependencies])],
56 with_features=$withval,
59 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
60 dnl Create a new --with option that defaults to being disabled.
61 dnl NAME is the base name of the option. The shell variable with_NAME
62 dnl will be set to either the user's value (if the option is
63 dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
64 dnl option is not specified). Note that the shell variable name is
65 dnl constructed as autoconf does, by replacing non-alphanumeric
66 dnl characters with "_".
67 dnl HELP-STRING is the help text for the option.
68 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
69 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
70 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
73 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
74 dnl Create a new --with option that defaults to $enable_features.
75 dnl NAME is the base name of the option. The shell variable with_NAME
76 dnl will be set either to 'no' (for a plain --without-NAME) or to
77 dnl 'yes' (if the option is not specified). Note that the shell
78 dnl variable name is constructed as autoconf does, by replacing
79 dnl non-alphanumeric characters with "_".
80 dnl HELP-STRING is the help text for the option.
81 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
82 AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
83 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=$with_features])dnl
86 OPTION_DEFAULT_ON([pop],[don't support POP mail retrieval with movemail])
87 if test "$with_pop" = yes; then
88 AC_DEFINE(MAIL_USE_POP)
90 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
92 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
93 if test "$with_kerberos" != no; then
97 [Define to support Kerberos-authenticated POP mail retrieval.])dnl
99 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
100 if test "${with_kerberos5}" != no; then
101 if test "${with_kerberos}" = no; then
105 AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
108 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
109 dnl FIXME hesiod support may not be present, so it seems like an error
110 dnl to define, or at least use, this unconditionally.
111 if test "$with_hesiod" != no; then
112 AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
115 OPTION_DEFAULT_OFF([mmdf],[support MMDF mailboxes])
116 if test "$with_mmdf" != no; then
117 AC_DEFINE(MAIL_USE_MMDF, 1, [Define to support MMDF mailboxes in movemail.])
120 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
121 if test "$with_mail_unlink" != no; then
122 AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
125 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
126 [string giving default POP mail host])],
127 AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
129 OPTION_DEFAULT_ON([sound],[don't compile with sound support])
131 dnl FIXME currently it is not the last.
132 dnl This should be the last --with option, because --with-x is
133 dnl added later on when we find the path of X, and it's best to
134 dnl keep them together visually.
135 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
136 [use an X toolkit (KIT one of: yes or gtk, gtk2, gtk3, lucid or athena, motif, no)])],
137 [ case "${withval}" in
138 y | ye | yes ) val=gtk ;;
140 l | lu | luc | luci | lucid ) val=lucid ;;
141 a | at | ath | athe | athen | athena ) val=athena ;;
142 m | mo | mot | moti | motif ) val=motif ;;
143 g | gt | gtk ) val=gtk ;;
147 AC_MSG_ERROR([`--with-x-toolkit=$withval' is invalid;
148 this option's value should be `yes', `no', `lucid', `athena', `motif', `gtk',
149 `gtk2' or `gtk3'. `yes' and `gtk' are synonyms.
150 `athena' and `lucid' are synonyms.])
156 OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit)])
157 if test "$with_wide_int" = yes; then
158 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
161 dnl _ON results in a '--without' option in the --help output, so
162 dnl the help text should refer to "don't compile", etc.
163 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
164 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
165 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
166 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
167 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
168 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
169 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
170 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
172 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
173 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
174 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
176 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
177 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
178 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
179 OPTION_DEFAULT_OFF([ns],[use NeXTstep (Cocoa or GNUstep) windowing system])
180 OPTION_DEFAULT_OFF([w32], [use native MS Windows GUI])
182 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
183 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
184 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
185 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
186 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
187 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
189 ## For the times when you want to build Emacs but don't have
190 ## a suitable makeinfo, and can live without the manuals.
191 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
192 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
194 ## Makefile.in needs the cache file name.
197 ## This is an option because I do not know if all info/man support
198 ## compressed files, nor how to test if they do so.
199 OPTION_DEFAULT_ON([compress-info],[don't compress the installed Info pages])
200 if test $with_compress_info = yes; then
207 AC_ARG_WITH([pkg-config-prog],dnl
208 [AS_HELP_STRING([--with-pkg-config-prog=PATH],
209 [path to pkg-config for finding GTK and librsvg])])
210 if test "X${with_pkg_config_prog}" != X; then
211 if test "${with_pkg_config_prog}" != yes; then
212 PKG_CONFIG="${with_pkg_config_prog}"
217 AC_ARG_WITH([crt-dir],dnl
218 [AS_HELP_STRING([--with-crt-dir=DIR],[directory containing crtn.o etc.
219 The default is /usr/lib, or /usr/lib64 on some platforms.])])
220 CRT_DIR="${with_crt_dir}"
222 AC_ARG_WITH(gameuser,dnl
223 [AS_HELP_STRING([--with-gameuser=USER],[user for shared game score files])])
224 test "X${with_gameuser}" != X && test "${with_gameuser}" != yes \
225 && gameuser="${with_gameuser}"
226 test "X$gameuser" = X && gameuser=games
228 AC_ARG_WITH([gnustep-conf],dnl
229 [AS_HELP_STRING([--with-gnustep-conf=PATH],[path to GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
230 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
231 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
232 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
233 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
235 AC_ARG_ENABLE(ns-self-contained,
236 [AS_HELP_STRING([--disable-ns-self-contained],
237 [disable self contained build under NeXTstep])],
238 EN_NS_SELF_CONTAINED=$enableval,
239 EN_NS_SELF_CONTAINED=yes)
241 AC_ARG_ENABLE(locallisppath,
242 [AS_HELP_STRING([--enable-locallisppath=PATH],
243 [directories Emacs should search for lisp files specific
245 if test "${enableval}" = "no"; then
247 elif test "${enableval}" != "yes"; then
248 locallisppath=${enableval}
251 AC_ARG_ENABLE(checking,
252 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
253 [enable expensive run-time checks. With LIST,
254 enable only specific categories of checks.
255 Categories are: all,yes,no.
256 Flags are: stringbytes, stringoverrun, stringfreelist,
257 xmallocoverrun, conslist, glyphs])],
258 [ac_checking_flags="${enableval}"],[])
259 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
260 for check in $ac_checking_flags
263 # these set all the flags to specific states
264 yes) ac_enable_checking=1 ;;
265 no) ac_enable_checking= ;
266 ac_gc_check_stringbytes= ;
267 ac_gc_check_string_overrun= ;
268 ac_gc_check_string_free_list= ;
269 ac_xmalloc_overrun= ;
270 ac_gc_check_cons_list= ;
272 all) ac_enable_checking=1 ;
273 ac_gc_check_stringbytes=1 ;
274 ac_gc_check_string_overrun=1 ;
275 ac_gc_check_string_free_list=1 ;
276 ac_xmalloc_overrun=1 ;
277 ac_gc_check_cons_list=1 ;
279 # these enable particular checks
280 stringbytes) ac_gc_check_stringbytes=1 ;;
281 stringoverrun) ac_gc_check_string_overrun=1 ;;
282 stringfreelist) ac_gc_check_string_free_list=1 ;;
283 xmallocoverrun) ac_xmalloc_overrun=1 ;;
284 conslist) ac_gc_check_cons_list=1 ;;
285 glyphs) ac_glyphs_debug=1 ;;
286 *) AC_MSG_ERROR(unknown check category $check) ;;
291 if test x$ac_enable_checking != x ; then
292 AC_DEFINE(ENABLE_CHECKING, 1,
293 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
295 if test x$ac_gc_check_stringbytes != x ; then
296 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
297 [Define this temporarily to hunt a bug. If defined, the size of
298 strings is redundantly recorded in sdata structures so that it can
299 be compared to the sizes recorded in Lisp strings.])
301 if test x$ac_gc_check_string_overrun != x ; then
302 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
303 [Define this to check for short string overrun.])
305 if test x$ac_gc_check_string_free_list != x ; then
306 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
307 [Define this to check the string free list.])
309 if test x$ac_xmalloc_overrun != x ; then
310 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
311 [Define this to check for malloc buffer overrun.])
313 if test x$ac_gc_check_cons_list != x ; then
314 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
315 [Define this to check for errors in cons list.])
317 if test x$ac_glyphs_debug != x ; then
318 AC_DEFINE(GLYPH_DEBUG, 1,
319 [Define this to enable glyphs debugging code.])
322 AC_ARG_ENABLE(check-lisp-object-type,
323 [AS_HELP_STRING([--enable-check-lisp-object-type],
324 [enable compile time checks for the Lisp_Object data type.
325 This is useful for development for catching certain types of bugs.])],
326 if test "${enableval}" != "no"; then
327 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
328 [Define this to enable compile time checks for the Lisp_Object data type.])
332 dnl The name of this option is unfortunate. It predates, and has no
333 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
334 dnl Actually, it stops it working.
335 dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
336 AC_ARG_ENABLE(profiling,
337 [AS_HELP_STRING([--enable-profiling],
338 [build emacs with low-level, gprof profiling support.
339 Mainly useful for debugging Emacs itself. May not work on
340 all platforms. Stops profiler.el working.])],
341 [ac_enable_profiling="${enableval}"],[])
342 if test x$ac_enable_profiling != x ; then
343 PROFILING_CFLAGS="-DPROFILING=1 -pg"
347 AC_SUBST(PROFILING_CFLAGS)
349 AC_ARG_ENABLE(autodepend,
350 [AS_HELP_STRING([--enable-autodepend],
351 [automatically generate dependencies to .h-files.
352 Requires GNU Make and Gcc. Enabled if GNU Make and Gcc is
354 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
356 #### Make srcdir absolute, if it isn't already. It's important to
357 #### avoid running the path through pwd unnecessarily, since pwd can
358 #### give you automounter prefixes, which can go away. We do all this
359 #### so Emacs can find its files when run uninstalled.
360 ## Make sure CDPATH doesn't affect cd (in case PWD is relative).
365 ## We may be able to use the $PWD environment variable to make this
366 ## absolute. But sometimes PWD is inaccurate.
367 ## Note: we used to use ${PWD} at the end instead of `pwd`,
368 ## but that tested only for a well-formed and valid PWD,
369 ## it did not object when PWD was well-formed and valid but just wrong.
370 if test ".${PWD}" != "." && test ".`(cd ${PWD} ; sh -c pwd)`" = ".`pwd`" ;
374 srcdir="`(cd ${srcdir}; pwd)`"
377 * ) srcdir="`(cd ${srcdir}; pwd)`" ;;
380 ### Canonicalize the configuration name.
384 configuration=${host_alias-${build_alias-$host}}
386 dnl This used to use changequote, but, apart from `changequote is evil'
387 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
388 dnl the great gob of text. Thus it's not processed for possible expansion.
389 dnl Just make sure the brackets remain balanced.
391 dnl Since Emacs can't find matching pairs of quotes, boundaries are
392 dnl indicated by comments.
396 ### If you add support for a new configuration, add code to this
397 ### switch statement to recognize your configuration name and select
398 ### the appropriate operating system file.
400 ### You would hope that you could choose an s/*.h
401 ### file based on the operating system portion. However, it turns out
402 ### that each s/*.h file is pretty manufacturer-specific.
403 ### So we basically have to have a special case for each
404 ### configuration name.
406 ### As far as handling version numbers on operating systems is
407 ### concerned, make sure things will fail in a fixable way. If
408 ### /etc/MACHINES doesn't say anything about version numbers, be
409 ### prepared to handle anything reasonably. If version numbers
410 ### matter, be sure /etc/MACHINES says something about it.
413 case "${canonical}" in
415 ## GNU/Linux and similar ports
425 ## FreeBSD kernel + glibc based userland
440 ## Apple Darwin / Mac OS X
442 case "${canonical}" in
449 ## Use fink packages if available.
450 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
451 ## if test -d /sw/include && test -d /sw/lib; then
452 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
453 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
457 ## HP 9000 series 700 and 800, running HP/UX
461 hppa*-hp-hpux1[1-9]* )
463 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
467 rs6000-ibm-aix4.[23]* )
470 powerpc-ibm-aix4.[23]* )
473 rs6000-ibm-aix[56]* )
476 powerpc-ibm-aix[56]* )
480 ## Silicon Graphics machines
484 # Without defining _LANGUAGE_C, things get masked out in the headers
485 # so that, for instance, grepping for `free' in stdlib.h fails and
486 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
487 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
492 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
493 | x86_64-*-solaris2* | x86_64-*-sunos5*)
494 case "${canonical}" in
496 amd64-*-*|x86_64-*-*) ;;
500 case "${canonical}" in
501 *-sunos5.6* | *-solaris2.6* )
505 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
507 emacs_check_sunpro_c=yes
509 *-sunos5* | *-solaris* )
511 emacs_check_sunpro_c=yes
514 ## Watch out for a compiler that we know will not work.
515 case "${canonical}" in
516 *-solaris* | *-sunos5* )
517 if [ "x$CC" = x/usr/ucb/cc ]; then
518 ## /usr/ucb/cc doesn't work;
519 ## we should find some other compiler that does work.
527 ## Intel 386 machines where we don't care about the manufacturer.
529 case "${canonical}" in
530 *-cygwin ) opsys=cygwin ;;
531 *-darwin* ) opsys=darwin ;;
532 *-sysv4.2uw* ) opsys=unixware ;;
533 *-sysv5uw* ) opsys=unixware ;;
534 *-sysv5OpenUNIX* ) opsys=unixware ;;
535 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
544 ### If the code above didn't choose an operating system, just choose
545 ### an operating system based on the configuration name. You really
546 ### only want to use this when you have no idea what the right
547 ### operating system is; if you know what operating systems a machine
548 ### runs, it's cleaner to make it explicit in the case statement
550 if test x"${opsys}" = x; then
551 case "${canonical}" in
552 *-gnu* ) opsys=gnu ;;
562 if test $unported = yes; then
563 AC_MSG_ERROR([Emacs hasn't been ported to `${canonical}' systems.
564 Check `etc/MACHINES' for recognized configuration names.])
568 #### Choose a compiler.
570 dnl Sets GCC=yes if using gcc.
574 if test x$GCC = xyes; then
575 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
577 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
580 # Avoid gnulib's threadlib module, as we do threads our own way.
581 AC_DEFUN([gl_THREADLIB])
583 # Initialize gnulib right after choosing the compiler.
584 dnl Amongst other things, this sets AR and ARFLAGS.
587 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
588 # if -g3 works and the user does not specify CFLAGS.
589 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
590 if test "$ac_test_CFLAGS" != set; then
593 emacs_g3_CFLAGS='-g3';;
595 emacs_g3_CFLAGS='-g3 -O2';;
599 if test -n "$emacs_g3_CFLAGS"; then
600 emacs_save_CFLAGS=$CFLAGS
601 CFLAGS=$emacs_g3_CFLAGS
602 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
603 [emacs_cv_prog_cc_g3],
604 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
605 [emacs_cv_prog_cc_g3=yes],
606 [emacs_cv_prog_cc_g3=no])])
607 if test $emacs_cv_prog_cc_g3 = yes; then
608 CFLAGS=$emacs_g3_CFLAGS
610 CFLAGS=$emacs_save_CFLAGS
615 AC_ARG_ENABLE([gcc-warnings],
616 [AS_HELP_STRING([--enable-gcc-warnings],
617 [turn on lots of GCC warnings. This is intended for
618 developers, and may generate false alarms when used
619 with older or non-GNU development tools.])],
622 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
624 gl_gcc_warnings=$enableval],
628 AC_ARG_ENABLE(link-time-optimization,
629 [AS_HELP_STRING([--enable-link-time-optimization],
630 [build emacs with link-time optimization.
631 This is supported only for GCC since 4.5.0.])],
632 if test "${enableval}" != "no"; then
633 AC_MSG_CHECKING([whether link-time optimization is supported])
635 if test x$GCC = xyes; then
636 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
637 if test x$CPUS != x; then
643 CFLAGS="$CFLAGS $LTO"
644 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
645 [ac_lto_supported=yes], [ac_lto_supported=no])
648 AC_MSG_RESULT([$ac_lto_supported])
649 if test "$ac_lto_supported" = "yes"; then
650 CFLAGS="$CFLAGS $LTO"
654 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
655 # ------------------------------------------------
656 # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
657 # Otherwise, run RUN-IF-NOT-FOUND.
658 AC_DEFUN([gl_GCC_VERSION_IFELSE],
662 #if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
665 # error "your version of gcc is older than $1.$2"
672 # When compiling with GCC, prefer -isystem to -I when including system
673 # include files, to avoid generating useless diagnostics for the files.
674 if test "$gl_gcc_warnings" != yes; then
679 # This, $nw, is the list of warnings we disable.
682 case $with_x_toolkit in
683 lucid | athena | motif)
684 # Old toolkits mishandle 'const'.
685 nw="$nw -Wwrite-strings"
688 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
691 AC_SUBST([WERROR_CFLAGS])
693 nw="$nw -Waggregate-return" # anachronistic
694 nw="$nw -Wlong-long" # C90 is anachronistic
695 nw="$nw -Wc++-compat" # We don't care about C++ compilers
696 nw="$nw -Wundef" # Warns on '#if GNULIB_FOO' etc in gnulib
697 nw="$nw -Wtraditional" # Warns on #elif which we use often
698 nw="$nw -Wcast-qual" # Too many warnings for now
699 nw="$nw -Wconversion" # Too many warnings for now
700 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
701 nw="$nw -Wsign-conversion" # Too many warnings for now
702 nw="$nw -Woverlength-strings" # Not a problem these days
703 nw="$nw -Wtraditional-conversion" # Too many warnings for now
704 nw="$nw -Wunreachable-code" # so buggy that it's now silently ignored
705 nw="$nw -Wpadded" # Our structs are not padded
706 nw="$nw -Wredundant-decls" # we regularly (re)declare functions
707 nw="$nw -Wlogical-op" # any use of fwrite provokes this
708 nw="$nw -Wformat-nonliteral" # we do this a lot
709 nw="$nw -Wvla" # warnings in gettext.h
710 nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
711 nw="$nw -Wswitch-enum" # Too many warnings for now
712 nw="$nw -Wswitch-default" # Too many warnings for now
713 nw="$nw -Wfloat-equal" # warns about high-quality code
714 nw="$nw -Winline" # OK to ignore 'inline'
715 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
716 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
717 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
719 # Emacs doesn't care about shadowing; see
720 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
723 # The following lines should be removable at some point.
724 nw="$nw -Wstack-protector"
725 nw="$nw -Wstrict-overflow"
726 nw="$nw -Wsuggest-attribute=pure"
728 gl_MANYWARN_ALL_GCC([ws])
729 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
733 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
734 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
735 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
736 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
737 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
738 gl_WARN_ADD([-Wno-format-nonliteral])
740 # In spite of excluding -Wlogical-op above, it is enabled, as of
741 # gcc 4.5.0 20090517.
742 gl_WARN_ADD([-Wno-logical-op])
744 gl_WARN_ADD([-fdiagnostics-show-option])
745 gl_WARN_ADD([-funit-at-a-time])
747 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
748 AH_VERBATIM([FORTIFY_SOURCE],
749 [/* Enable compile-time and run-time bounds-checking, and some warnings,
750 without upsetting glibc 2.15+. */
751 #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
752 # define _FORTIFY_SOURCE 2
755 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
757 # We use a slightly smaller set of warning options for lib/.
758 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
760 nw="$nw -Wunused-macros"
762 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
763 AC_SUBST([GNULIB_WARN_CFLAGS])
768 dnl Some other nice autoconf tests.
769 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
772 dnl if test "x$RANLIB" = x; then
777 AC_PATH_PROG(INSTALL_INFO, install-info, :,
778 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
779 dnl Don't use GZIP, which is used by gzip for additional parameters.
780 AC_PATH_PROG(GZIP_PROG, gzip)
782 if test $opsys = gnu-linux; then
783 AC_PATH_PROG(PAXCTL, paxctl,,
784 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
785 if test "X$PAXCTL" != X; then
786 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
787 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
788 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
789 else AC_MSG_RESULT(no); PAXCTL=""; fi])
793 ## Need makeinfo >= 4.7 (?) to build the manuals.
794 AC_PATH_PROG(MAKEINFO, makeinfo, no)
795 dnl By this stage, configure has already checked for egrep and set EGREP,
796 dnl or exited with an error if no egrep was found.
797 if test "$MAKEINFO" != "no" && \
798 test x"`$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
802 ## Makeinfo is unusual. For a released Emacs, the manuals are
803 ## pre-built, and not deleted by the normal clean rules. makeinfo is
804 ## therefore in the category of "special tools" not normally required, which
805 ## configure does not have to check for (eg autoconf itself).
806 ## In a Bazaar checkout on the other hand, the manuals are not included.
807 ## So makeinfo is a requirement to build from Bazaar, and configure
808 ## should test for it as it does for any other build requirement.
809 ## We use the presence of $srcdir/info/emacs to distinguish a release,
810 ## with pre-built manuals, from a Bazaar checkout.
813 if test "$MAKEINFO" = "no"; then
815 if test "x${with_makeinfo}" = "xno"; then
817 elif test ! -e $srcdir/info/emacs && test ! -e $srcdir/info/emacs.info; then
818 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
819 source tree does not seem to have pre-built manuals in the `info' directory.
820 Either install a suitable version of makeinfo, or re-run configure
821 with the `--without-makeinfo' option to build without the manuals.] )
824 AC_SUBST(HAVE_MAKEINFO)
826 dnl Just so that there is only a single place we need to edit.
832 dnl Add our options to ac_link now, after it is set up.
834 if test x$GCC = xyes; then
835 test "x$GCC_LINK_TEST_OPTIONS" != x && \
836 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
838 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
839 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
842 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
843 dnl If we can link with the flag, it shouldn't do any harm anyhow.
844 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
845 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
846 dnl if not built to support GNU ld.
848 late_LDFLAGS=$LDFLAGS
849 if test x$GCC = xyes; then
850 LDFLAGS="$LDFLAGS -Wl,-znocombreloc"
852 LDFLAGS="$LDFLAGS -znocombreloc"
855 AC_MSG_CHECKING([for -znocombreloc])
856 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
857 [AC_MSG_RESULT(yes)],
858 LDFLAGS=$late_LDFLAGS
862 dnl The function dump-emacs will not be defined and temacs will do
863 dnl (load "loadup") automatically unless told otherwise.
864 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
866 your-opsys-here) CANNOT_DUMP=yes ;;
869 test "$CANNOT_DUMP" = "yes" && \
870 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
872 AC_SUBST(CANNOT_DUMP)
877 # MSDOS uses unexcoff.o
878 # MSWindows uses unexw32.o
886 UNEXEC_OBJ=unexmacosx.o
889 UNEXEC_OBJ=unexhp9k800.o
892 # Use the Solaris dldump() function, called from unexsol.c, to dump
893 # emacs, instead of the generic ELF dump code found in unexelf.c.
894 # The resulting binary has a complete symbol table, and is better
895 # for debugging and other observability tools (debuggers, pstack, etc).
897 # If you encounter a problem using dldump(), please consider sending
898 # a message to the OpenSolaris tools-linking mailing list:
899 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
901 # It is likely that dldump() works with older Solaris too, but this has
902 # not been tested, so for now this change is for Solaris 10 or newer.
910 ## Let `ld' find image libs and similar things in /usr/local/lib.
911 ## The system compiler, GCC, has apparently been modified to not
912 ## look there, contrary to what a stock GCC would do.
913 ### It's not our place to do this. See bug#10313#17.
914 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
919 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
920 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
924 ### It's not our place to do this. See bug#10313#17.
925 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
930 ## Han Boetes <han@mijncomputer.nl> says this is necessary,
931 ## otherwise Emacs dumps core on elf systems.
932 LD_SWITCH_SYSTEM="-Z"
935 AC_SUBST(LD_SWITCH_SYSTEM)
937 ac_link="$ac_link $LD_SWITCH_SYSTEM"
939 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
940 ## which has not been defined yet. When this was handled with cpp,
941 ## it was expanded to null when configure sourced the s/*.h file.
942 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
943 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
944 ## (or somesuch), but because it is supposed to go at the _front_
945 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
946 ## Compare with the gnu-linux case below, which added to the end
947 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
948 ## LD_SWITCH_SYSTEM_TEMACS.
951 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
958 AC_CHECK_DECL([__ELF__])
959 if test "$ac_cv_have_decl___ELF__" = "yes"; then
960 ## With ELF, make sure that all common symbols get allocated to in the
961 ## data section. Otherwise, the dump of temacs may miss variables in
962 ## the shared library that have been initialized. For example, with
963 ## GNU libc, __malloc_initialized would normally be resolved to the
964 ## shared library's .bss section, which is fatal.
965 if test "x$GCC" = "xyes"; then
966 C_SWITCH_MACHINE="-fno-common"
968 AC_MSG_ERROR([What gives? Fix me if DEC Unix supports ELF now.])
971 UNEXEC_OBJ=unexalpha.o
975 AC_SUBST(C_SWITCH_MACHINE)
980 ## Some programs in src produce warnings saying certain subprograms
981 ## are too complex and need a MAXMEM value greater than 2000 for
982 ## additional optimization. --nils@exp-math.uni-essen.de
983 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
984 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
985 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
986 ## It is redundant in glibc2, since we define _GNU_SOURCE.
987 AC_SUBST(C_SWITCH_SYSTEM)
992 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
993 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
995 freebsd) LIBS_SYSTEM="-lutil" ;;
997 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
999 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1001 ## Motif needs -lgen.
1002 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1004 AC_SUBST(LIBS_SYSTEM)
1007 ### Make sure subsequent tests use flags consistent with the build flags.
1009 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1010 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1012 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1015 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C89 or better.
1016 AC_DEFUN([AC_TYPE_SIZE_T])
1017 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1018 AC_DEFUN([AC_TYPE_UID_T])
1024 dnl Current possibilities handled by sed (aix4-2 -> aix,
1025 dnl gnu-linux -> gnu/linux, etc.):
1026 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1027 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1028 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1030 dnl NB do not use CRT_DIR unquoted here, since it might not be set yet.
1034 START_FILES='pre-crt0.o'
1037 ## Adding -lm confuses the dynamic linker, so omit it.
1039 START_FILES='pre-crt0.o'
1042 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtn.o'
1043 START_FILES='pre-crt0.o $(CRT_DIR)/crt1.o $(CRT_DIR)/crti.o'
1044 SYSTEM_TYPE=berkeley-unix
1046 gnu-linux | gnu-kfreebsd )
1047 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtn.o'
1048 START_FILES='pre-crt0.o $(CRT_DIR)/crt1.o $(CRT_DIR)/crti.o'
1050 hpux10-20 | hpux11 )
1052 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o'
1054 dnl NB this may be adjusted below.
1056 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o'
1057 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o $(CRT_DIR)/crtbegin.o'
1058 SYSTEM_TYPE=berkeley-unix
1062 SYSTEM_TYPE=usg-unix-v
1068 AC_SUBST(START_FILES)
1069 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1070 [The type of system you are compiling for; sets `system-type'.])
1072 dnl Not all platforms use crtn.o files. Check if the current one does.
1075 for file in x $LIB_STANDARD $START_FILES; do
1077 *CRT_DIR*) crt_files="$crt_files `echo $file | sed -e 's|.*/||'`" ;;
1081 if test "x$crt_files" != x; then
1083 ## If user specified a crt-dir, use that unconditionally.
1086 if test "X$CRT_DIR" = "X"; then
1088 CRT_DIR=/usr/lib # default
1090 case "$canonical" in
1091 x86_64-*-linux-gnu* | s390x-*-linux-gnu*)
1092 ## On x86-64 and s390x GNU/Linux distributions, the standard library
1093 ## can be in a variety of places. We only try /usr/lib64 and /usr/lib.
1094 ## For anything else (eg /usr/lib32), it is up the user to specify
1095 ## the location (bug#5655).
1096 ## Test for crtn.o, not just the directory, because sometimes the
1097 ## directory exists but does not have the relevant files (bug#1287).
1098 ## FIXME better to test for binary compatibility somehow.
1099 test -e /usr/lib64/crtn.o && CRT_DIR=/usr/lib64
1102 powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*) CRT_DIR=/usr/lib64 ;;
1106 hpux10-20) CRT_DIR=/lib ;;
1109 test "x${GCC}" = xyes && crt_gcc=yes
1115 for file in $crt_files; do
1117 ## If we're using gcc, try to determine it automatically by asking
1118 ## gcc. [If this doesn't work, CRT_DIR will remain at the
1119 ## system-dependent default from above.]
1120 if test $crt_gcc = yes && test ! -e $CRT_DIR/$file; then
1122 crt_file=`$CC --print-file-name=$file 2>/dev/null`
1125 CRT_DIR=`AS_DIRNAME(["$crt_file"])`
1130 dnl We expect all the files to be in a single directory, so after the
1131 dnl first there is no point asking gcc.
1134 test -e $CRT_DIR/$file || crt_missing="$crt_missing $file"
1137 test "x$crt_missing" = x || \
1138 AC_MSG_ERROR([Required file(s) not found:$crt_missing
1139 Try using the --with-crt-dir option.])
1141 fi # crt_files != ""
1147 if test -f $CRT_DIR/crti.o; then
1149 test -f $CRT_DIR/crtn.o || \
1150 AC_MSG_ERROR([Required file not found: crtn.o])
1152 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o $(CRT_DIR)/crtn.o'
1153 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o $(CRT_DIR)/crti.o $(CRT_DIR)/crtbegin.o'
1159 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1160 pre_PKG_CONFIG_LIBS=$LIBS
1162 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
1164 dnl This function definition taken from Gnome 2.0
1165 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
1166 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
1167 dnl also defines GSTUFF_PKG_ERRORS on error
1168 AC_DEFUN([PKG_CHECK_MODULES], [
1171 if test "$PKG_CONFIG" = "no" ; then
1172 ifelse([$4], , [AC_MSG_ERROR([
1173 *** 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])
1175 PKG_CONFIG_MIN_VERSION=0.9.0
1176 if $PKG_CONFIG --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
1177 AC_MSG_CHECKING(for $2)
1179 if $PKG_CONFIG --exists "$2" 2>&AS_MESSAGE_LOG_FD &&
1180 $1_CFLAGS=`$PKG_CONFIG --cflags "$2" 2>&AS_MESSAGE_LOG_FD` &&
1181 $1_LIBS=`$PKG_CONFIG --libs "$2" 2>&AS_MESSAGE_LOG_FD`; then
1188 $1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1189 $1_LIBS=`AS_ECHO(["$$1_LIBS"]) | sed -e 's,///*,/,g'`
1190 AC_MSG_RESULT([yes CFLAGS='$$1_CFLAGS' LIBS='$$1_LIBS'])
1196 ## If we have a custom action on failure, don't print errors, but
1197 ## do set a variable so people can do so. Do it in a subshell
1198 ## to capture any diagnostics in invoking pkg-config.
1199 $1_PKG_ERRORS=`($PKG_CONFIG --print-errors "$2") 2>&1`
1200 ifelse([$4], ,echo "$$1_PKG_ERRORS",)
1206 echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
1207 echo "*** See http://www.freedesktop.org/software/pkgconfig"
1211 if test $succeeded = yes; then
1212 ifelse([$3], , :, [$3])
1214 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])
1219 if test "${with_sound}" != "no"; then
1220 # Sound support for GNU/Linux and the free BSDs.
1221 AC_CHECK_HEADERS(machine/soundcard.h sys/soundcard.h soundcard.h,
1222 have_sound_header=yes)
1223 # Emulation library used on NetBSD.
1224 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1228 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1229 PKG_CHECK_MODULES(ALSA, $ALSA_MODULES, HAVE_ALSA=yes, HAVE_ALSA=no)
1230 if test $HAVE_ALSA = yes; then
1231 SAVE_CFLAGS="$CFLAGS"
1233 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1234 LIBS="$ALSA_LIBS $LIBS"
1235 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1236 emacs_alsa_normal=yes,
1237 emacs_alsa_normal=no)
1238 if test "$emacs_alsa_normal" != yes; then
1239 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1240 [[snd_lib_error_set_handler (0);]])],
1241 emacs_alsa_subdir=yes,
1242 emacs_alsa_subdir=no)
1243 if test "$emacs_alsa_subdir" != yes; then
1244 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1246 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1249 CFLAGS="$SAVE_CFLAGS"
1251 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1252 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1253 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1256 dnl Define HAVE_SOUND if we have sound support. We know it works and
1257 dnl compiles only on the specified platforms. For others, it
1258 dnl probably doesn't make sense to try.
1259 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1261 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1262 gnu-linux|freebsd|netbsd)
1263 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1268 AC_SUBST(CFLAGS_SOUND)
1271 dnl checks for header files
1272 AC_CHECK_HEADERS_ONCE(
1273 linux/version.h sys/systeminfo.h
1274 stdio_ext.h fcntl.h coff.h pty.h
1275 sys/vlimit.h sys/resource.h
1276 sys/utsname.h pwd.h utmp.h dirent.h util.h)
1278 AC_MSG_CHECKING(if personality LINUX32 can be set)
1279 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1280 emacs_cv_personality_linux32=yes,
1281 emacs_cv_personality_linux32=no)
1282 AC_MSG_RESULT($emacs_cv_personality_linux32)
1284 if test $emacs_cv_personality_linux32 = yes; then
1285 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1286 [Define to 1 if personality LINUX32 can be set.])
1289 dnl On Solaris 8 there's a compilation warning for term.h because
1290 dnl it doesn't define `bool'.
1291 AC_CHECK_HEADERS(term.h, , , -)
1293 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1295 if test $ac_cv_have_decl_sys_siglist != yes; then
1296 # For Tru64, at least:
1297 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1299 if test $ac_cv_have_decl___sys_siglist = yes; then
1300 AC_DEFINE(sys_siglist, __sys_siglist,
1301 [Define to any substitute for sys_siglist.])
1306 dnl Check for speed_t typedef.
1307 AC_CACHE_CHECK(for speed_t, emacs_cv_speed_t,
1308 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <termios.h>]], [[speed_t x = 1;]])],
1309 emacs_cv_speed_t=yes, emacs_cv_speed_t=no)])
1310 if test $emacs_cv_speed_t = yes; then
1311 AC_DEFINE(HAVE_SPEED_T, 1,
1312 [Define to 1 if `speed_t' is declared by <termios.h>.])
1315 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1316 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1317 #if HAVE_SYS_SOCKET_H
1318 #include <sys/socket.h>
1320 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1321 #if HAVE_SYS_SOCKET_H
1322 #include <sys/socket.h>
1324 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1325 #if HAVE_SYS_SOCKET_H
1326 #include <sys/socket.h>
1329 dnl checks for structure members
1330 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1331 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1332 struct ifreq.ifr_addr,
1333 struct ifreq.ifr_addr.sa_len], , ,
1334 [AC_INCLUDES_DEFAULT
1335 #if HAVE_SYS_SOCKET_H
1336 #include <sys/socket.h>
1342 dnl Check for endianness.
1343 dnl AC_C_BIGENDIAN is done by gnulib.
1345 dnl check for Make feature
1346 dnl AC_PROG_MAKE_SET is done by Automake.
1351 dnl check for GNU Make if we have GCC and autodepend is on.
1352 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1353 AC_MSG_CHECKING([whether we are using GNU Make])
1355 testval=`${MAKE-make} --version 2>/dev/null | grep 'GNU Make'`
1356 if test "x$testval" != x; then
1359 ac_enable_autodepend=no
1361 AC_MSG_RESULT([$HAVE_GNU_MAKE])
1362 if test $HAVE_GNU_MAKE = yes; then
1363 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1364 SAVE_CFLAGS="$CFLAGS"
1365 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1366 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1367 CFLAGS="$SAVE_CFLAGS"
1368 test -f deps.d || ac_enable_autodepend=no
1370 AC_MSG_RESULT([$ac_enable_autodepend])
1372 if test $ac_enable_autodepend = yes; then
1373 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1374 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1375 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1376 deps_frag=autodeps.mk
1379 deps_frag=$srcdir/src/$deps_frag
1382 AC_SUBST_FILE(deps_frag)
1385 lisp_frag=$srcdir/src/lisp.mk
1386 AC_SUBST_FILE(lisp_frag)
1389 dnl checks for operating system services
1390 AC_SYS_LONG_FILE_NAMES
1392 #### Choose a window system.
1394 ## We leave window_system equal to none if
1395 ## we end up building without one. Any new window system should
1396 ## set window_system to an appropriate value and add objects to
1397 ## window-system-specific substs.
1401 if test "$no_x" != yes; then
1405 LD_SWITCH_X_SITE_RPATH=
1406 if test "${x_libraries}" != NONE; then
1407 if test -n "${x_libraries}"; then
1408 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1409 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1411 x_default_search_path=""
1412 x_search_path=${x_libraries}
1413 if test -z "${x_search_path}"; then
1414 x_search_path=/usr/lib
1416 for x_library in `echo ${x_search_path}: | \
1417 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1419 ${x_library}/X11/%L/%T/%N%C%S:\
1420 ${x_library}/X11/%l/%T/%N%C%S:\
1421 ${x_library}/X11/%T/%N%C%S:\
1422 ${x_library}/X11/%L/%T/%N%S:\
1423 ${x_library}/X11/%l/%T/%N%S:\
1424 ${x_library}/X11/%T/%N%S"
1425 if test x"${x_default_search_path}" = x; then
1426 x_default_search_path=${x_search_path}
1428 x_default_search_path="${x_search_path}:${x_default_search_path}"
1432 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1434 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1435 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1438 if test x"${x_includes}" = x; then
1439 bitmapdir=/usr/include/X11/bitmaps
1441 # accumulate include directories that have X11 bitmap subdirectories
1443 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1444 if test -d "${bmd}/X11/bitmaps"; then
1445 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1447 if test -d "${bmd}/bitmaps"; then
1448 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1451 if test ${bmd_acc} != "dummyval"; then
1452 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1459 tmp_CPPFLAGS="$CPPFLAGS"
1460 tmp_CFLAGS="$CFLAGS"
1461 CPPFLAGS="$CPPFLAGS -x objective-c"
1462 CFLAGS="$CFLAGS -x objective-c"
1463 TEMACS_LDFLAGS2="\${LDFLAGS}"
1465 if test "${with_ns}" != no; then
1466 if test "${opsys}" = darwin; then
1468 ns_appdir=`pwd`/nextstep/Emacs.app
1469 ns_appbindir=${ns_appdir}/Contents/MacOS
1470 ns_appresdir=${ns_appdir}/Contents/Resources
1471 ns_appsrc=Cocoa/Emacs.base
1472 elif test -f $GNUSTEP_CONFIG_FILE; then
1474 ns_appdir=`pwd`/nextstep/Emacs.app
1475 ns_appbindir=${ns_appdir}
1476 ns_appresdir=${ns_appdir}/Resources
1477 ns_appsrc=GNUstep/Emacs.base
1478 dnl FIXME sourcing this several times in subshells seems inefficient.
1479 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1480 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1481 dnl I seemed to need these as well with GNUstep-startup 0.25.
1482 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1483 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1484 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1485 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1486 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1487 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1488 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1489 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1490 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1494 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1495 dnl If they had chosen to either define it or not, we could have
1496 dnl just used AC_CHECK_DECL here.
1497 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1498 emacs_cv_objc_exceptions,
1499 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1500 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1504 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1505 if test $emacs_cv_objc_exceptions = yes; then
1506 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1507 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1508 [Define if GNUstep uses ObjC exceptions.])
1509 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1513 dnl This is only used while we test the NS headers, it gets reset below.
1514 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1516 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1517 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1518 files are missing or cannot be compiled.])])
1520 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1522 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1523 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
1526 #error "OSX 10.4 or newer required"
1530 ns_osx_have_104=yes,
1532 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1534 ns_have_nsinteger=yes,
1535 ns_have_nsinteger=no)
1536 if test $ns_osx_have_104 = no; then
1537 AC_MSG_ERROR([`OSX 10.4 or newer is required']);
1539 if test $ns_have_nsinteger = yes; then
1540 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1544 AC_SUBST(TEMACS_LDFLAGS2)
1546 INSTALL_ARCH_INDEP_EXTRA=install-etc
1547 ns_self_contained=no
1550 if test "${HAVE_NS}" = yes; then
1551 if test "$with_toolkit_scroll_bars" = "no"; then
1552 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1555 window_system=nextstep
1556 # set up packaging dirs
1557 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1558 ns_self_contained=yes
1559 prefix=${ns_appresdir}
1560 exec_prefix=${ns_appbindir}
1561 dnl This one isn't really used, only archlibdir is.
1562 libexecdir="\${ns_appbindir}/libexec"
1563 archlibdir="\${ns_appbindir}/libexec"
1564 docdir="\${ns_appresdir}/etc"
1565 etcdir="\${ns_appresdir}/etc"
1566 dnl FIXME maybe set datarootdir instead.
1567 dnl That would also get applications, icons, man.
1568 infodir="\${ns_appresdir}/info"
1569 mandir="\${ns_appresdir}/man"
1570 lispdir="\${ns_appresdir}/lisp"
1571 leimdir="\${ns_appresdir}/leim"
1572 INSTALL_ARCH_INDEP_EXTRA=
1574 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o"
1576 CFLAGS="$tmp_CFLAGS"
1577 CPPFLAGS="$tmp_CPPFLAGS"
1578 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1579 AC_SUBST(ns_self_contained)
1581 AC_SUBST(NS_OBJC_OBJ)
1582 AC_SUBST(LIB_STANDARD)
1589 if test "${with_w32}" != no; then
1590 if test "${opsys}" != "cygwin"; then
1591 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin.])
1593 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1594 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1595 cannot be found.])])
1596 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1597 AC_CHECK_TOOL(WINDRES, [windres],
1598 [AC_MSG_ERROR([No resource compiler found.])])
1599 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1600 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1601 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1602 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1604 # Tell the linker that emacs.res is an object (which we compile from
1605 # the rc file), not a linker script.
1606 W32_RES_LINK="-Wl,-bpe-i386 -Wl,emacs.res"
1611 AC_SUBST(W32_RES_LINK)
1613 if test "${HAVE_W32}" = "yes"; then
1618 ## $window_system is now set to the window system we will
1626 case "${window_system}" in
1631 case "${with_x_toolkit}" in
1632 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1633 motif ) USE_X_TOOLKIT=MOTIF ;;
1635 term_header=gtkutil.h
1636 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1637 dnl USE_X_TOOLKIT is set.
1638 USE_X_TOOLKIT=none ;;
1639 gtk2 ) with_gtk2=yes
1640 term_header=gtkutil.h
1641 USE_X_TOOLKIT=none ;;
1642 gtk3 ) with_gtk3=yes
1643 term_header=gtkutil.h
1644 USE_X_TOOLKIT=none ;;
1645 no ) USE_X_TOOLKIT=none ;;
1646 dnl If user did not say whether to use a toolkit, make this decision later:
1647 dnl use the toolkit if we have gtk, or X11R5 or newer.
1648 * ) USE_X_TOOLKIT=maybe ;;
1652 term_header=nsterm.h
1655 term_header=w32term.h
1659 if test -n "${term_header}"; then
1660 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
1661 [Define to the header for the built-in window system.])
1664 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1665 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1666 if test "$HAVE_XSERVER" = true ||
1667 test -n "$DISPLAY" ||
1668 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1669 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1670 were found. You should install the relevant development files for X
1671 and for the toolkit you want, such as Gtk+, Lesstif or Motif. Also make
1672 sure you have development files for image handling, i.e.
1673 tiff, gif, jpeg, png and xpm.
1674 If you are sure you want Emacs compiled without X window support, pass
1680 ### If we're using X11, we should use the X menu package.
1683 yes ) HAVE_MENUS=yes ;;
1686 # Does the opsystem file prohibit the use of the GNU malloc?
1687 # Assume not, until told otherwise.
1691 [whether malloc is Doug Lea style],
1692 [emacs_cv_var_doug_lea_malloc],
1695 [[#include <malloc.h>
1696 static void hook (void) {}]],
1697 [[malloc_set_state (malloc_get_state ());
1698 __after_morecore_hook = hook;
1699 __malloc_initialize_hook = hook;]])],
1700 [emacs_cv_var_doug_lea_malloc=yes],
1701 [emacs_cv_var_doug_lea_malloc=no])])
1702 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1705 dnl See comments in aix4-2.h about maybe using system malloc there.
1708 ## darwin ld insists on the use of malloc routines in the System framework.
1709 darwin|sol2-10) system_malloc=yes ;;
1712 if test "${system_malloc}" = "yes"; then
1713 AC_DEFINE(SYSTEM_MALLOC, 1, [Define to use system malloc.])
1716 (The GNU allocators don't work with this system configuration.)"
1720 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1721 VMLIMIT_OBJ=vm-limit.o
1723 AC_SUBST(GMALLOC_OBJ)
1724 AC_SUBST(VMLIMIT_OBJ)
1726 if test "$doug_lea_malloc" = "yes" ; then
1727 if test "$GNU_MALLOC" = yes ; then
1729 (Using Doug Lea's new malloc from the GNU C Library.)"
1731 AC_DEFINE(DOUG_LEA_MALLOC, 1,
1732 [Define to 1 if you are using the GNU C Library.])
1734 ## Use mmap directly for allocating larger buffers.
1735 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
1736 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
1737 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
1739 gnu*) REL_ALLOC=no ;;
1743 if test x"${REL_ALLOC}" = x; then
1744 REL_ALLOC=${GNU_MALLOC}
1747 use_mmap_for_buffers=no
1749 cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
1753 if test $use_mmap_for_buffers = yes; then
1754 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
1758 LIBS="$LIBS_SYSTEM $LIBS"
1760 dnl If found, this defines HAVE_LIBDNET, which m/pmax.h checks,
1761 dnl and also adds -ldnet to LIBS, which Autoconf uses for checks.
1762 AC_CHECK_LIB(dnet, dnet_ntoa)
1763 dnl This causes -lresolv to get used in subsequent tests,
1764 dnl which causes failures on some systems such as HPUX 9.
1765 dnl AC_CHECK_LIB(resolv, gethostbyname)
1767 dnl FIXME replace main with a function we actually want from this library.
1768 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
1770 dnl Check if pthreads is available.
1772 AC_CHECK_HEADERS_ONCE(pthread.h)
1773 if test "$ac_cv_header_pthread_h"; then
1774 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
1775 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
1776 dnl testing for pthread_self if Emacs uses gmalloc.c.
1777 if test "$GMALLOC_OBJ" = gmalloc.o; then
1778 emacs_pthread_function=pthread_atfork
1780 emacs_pthread_function=pthread_self
1782 AC_CHECK_LIB(pthread, $emacs_pthread_function, HAVE_PTHREAD=yes)
1784 if test "$HAVE_PTHREAD" = yes; then
1785 case "${canonical}" in
1787 *) LIB_PTHREAD="-lpthread"
1788 LIBS="$LIB_PTHREAD $LIBS" ;;
1790 AC_DEFINE(HAVE_PTHREAD, 1, [Define to 1 if you have pthread (-lpthread).])
1792 AC_SUBST([LIB_PTHREAD])
1794 AC_CHECK_LIB(pthreads, cma_open)
1796 ## Note: when using cpp in s/aix4.2.h, this definition depended on
1797 ## HAVE_LIBPTHREADS. That was not defined earlier in configure when
1798 ## the system file was sourced. Hence the value of LIBS_SYSTEM
1799 ## added to LIBS in configure would never contain the pthreads part,
1800 ## but the value used in Makefiles might. FIXME?
1802 ## -lpthreads seems to be necessary for Xlib in X11R6, and should
1803 ## be harmless on older versions of X where it happens to exist.
1804 test "$opsys" = "aix4-2" && \
1805 test $ac_cv_lib_pthreads_cma_open = yes && \
1806 LIBS_SYSTEM="$LIBS_SYSTEM -lpthreads"
1808 dnl Check for need for bigtoc support on IBM AIX
1812 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1814 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1815 *) gdb_cv_bigtoc=-bbigtoc ;;
1818 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1819 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
1824 # Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
1825 # used for the tests that follow. We set them back to REAL_CFLAGS and
1826 # REAL_CPPFLAGS later on.
1828 REAL_CFLAGS="$CFLAGS"
1829 REAL_CPPFLAGS="$CPPFLAGS"
1831 if test "${HAVE_X11}" = "yes"; then
1832 DEFS="$C_SWITCH_X_SITE $DEFS"
1833 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
1835 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
1836 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
1838 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
1839 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
1840 # but it's more convenient here to set LD_RUN_PATH since this
1841 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
1842 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
1843 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
1847 if test "${opsys}" = "gnu-linux"; then
1848 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
1849 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1850 [[XOpenDisplay ("foo");]])],
1851 [xgnu_linux_first_failure=no],
1852 [xgnu_linux_first_failure=yes])
1853 if test "${xgnu_linux_first_failure}" = "yes"; then
1854 OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
1855 OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
1856 OLD_CPPFLAGS="$CPPFLAGS"
1858 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
1859 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
1860 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
1861 LIBS="$LIBS -b i486-linuxaout"
1862 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1863 [[XOpenDisplay ("foo");]])],
1864 [xgnu_linux_second_failure=no],
1865 [xgnu_linux_second_failure=yes])
1866 if test "${xgnu_linux_second_failure}" = "yes"; then
1867 # If we get the same failure with -b, there is no use adding -b.
1868 # So take it out. This plays safe.
1869 LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
1870 C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
1871 CPPFLAGS="$OLD_CPPFLAGS"
1882 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
1883 # header files included from there.
1884 AC_MSG_CHECKING(for Xkb)
1885 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
1886 #include <X11/XKBlib.h>]],
1887 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
1888 emacs_xkb=yes, emacs_xkb=no)
1889 AC_MSG_RESULT($emacs_xkb)
1890 if test $emacs_xkb = yes; then
1891 AC_DEFINE(HAVE_XKBGETKEYBOARD, 1, [Define to 1 if you have the XkbGetKeyboard function.])
1894 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
1895 XScreenNumberOfScreen)
1898 if test "${window_system}" = "x11"; then
1899 AC_MSG_CHECKING(X11 version 6)
1900 AC_CACHE_VAL(emacs_cv_x11_version_6,
1901 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
1902 [[#if XlibSpecificationRelease < 6
1905 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
1906 if test $emacs_cv_x11_version_6 = yes; then
1907 AC_MSG_RESULT(6 or newer)
1908 AC_DEFINE(HAVE_X11R6, 1,
1909 [Define to 1 if you have the X11R6 or newer version of Xlib.])
1910 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
1911 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
1915 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
1916 [Define if you have usable X11R6-style XIM support.])
1920 AC_MSG_RESULT(before 6)
1925 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
1927 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes"; then
1928 if test "${with_rsvg}" != "no"; then
1929 RSVG_REQUIRED=2.11.0
1930 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
1932 PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, HAVE_RSVG=yes, :)
1933 AC_SUBST(RSVG_CFLAGS)
1936 if test $HAVE_RSVG = yes; then
1937 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
1938 CFLAGS="$CFLAGS $RSVG_CFLAGS"
1939 LIBS="$RSVG_LIBS $LIBS"
1945 if test "${HAVE_X11}" = "yes"; then
1946 if test "${with_imagemagick}" != "no"; then
1947 ## 6.2.8 is the earliest version known to work, but earlier versions
1948 ## might work - let us know if you find one.
1949 ## 6.0.7 does not work. See bug#7955.
1950 IMAGEMAGICK_MODULE="Wand >= 6.2.8"
1951 PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
1952 AC_SUBST(IMAGEMAGICK_CFLAGS)
1953 AC_SUBST(IMAGEMAGICK_LIBS)
1955 if test $HAVE_IMAGEMAGICK = yes; then
1956 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
1957 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
1958 LIBS="$IMAGEMAGICK_LIBS $LIBS"
1959 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
1969 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
1972 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1974 dnl Checks for libraries.
1975 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1976 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
1977 AC_MSG_ERROR($GTK_PKG_ERRORS)
1979 if test "$pkg_check_gtk" = "yes"; then
1980 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
1981 GTK_OBJ=emacsgtkfixed.o
1982 term_header=gtkutil.h
1983 USE_GTK_TOOLKIT="GTK3"
1986 gtk3_pkg_errors="$GTK_PKG_ERRORS "
1990 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
1993 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1995 dnl Checks for libraries.
1996 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1997 if test "$pkg_check_gtk" = "no" &&
1998 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2000 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2002 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2005 if test x"$pkg_check_gtk" = xyes; then
2007 AC_SUBST(GTK_CFLAGS)
2009 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2010 CFLAGS="$CFLAGS $GTK_CFLAGS"
2011 LIBS="$GTK_LIBS $LIBS"
2012 dnl Try to compile a simple GTK program.
2014 AC_CHECK_FUNCS(gtk_main, GTK_COMPILES=yes)
2015 if test "${GTK_COMPILES}" != "yes"; then
2016 if test "$USE_X_TOOLKIT" != "maybe"; then
2017 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2021 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2022 GTK_OBJ="gtkutil.o $GTK_OBJ"
2024 if $PKG_CONFIG --atleast-version=2.10 gtk+-2.0; then
2027 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2028 closing open displays. This is no problem if you just use
2029 one display, but if you use more than one and close one of them
2039 if test "${HAVE_GTK}" = "yes"; then
2041 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2042 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2043 if test "$with_toolkit_scroll_bars" != no; then
2044 with_toolkit_scroll_bars=yes
2047 dnl Check if we have the old file selection dialog declared and
2048 dnl in the link library. In 2.x it may be in the library,
2049 dnl but not declared if deprecated featured has been selected out.
2050 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2051 HAVE_GTK_FILE_SELECTION=no
2052 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2053 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2054 #include <gtk/gtk.h>])
2055 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2056 AC_CHECK_FUNCS(gtk_file_selection_new)
2060 dnl Check for functions introduced in 2.14 and later.
2061 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2062 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2063 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2064 gtk_orientable_set_orientation \
2065 gtk_window_set_has_resize_grip)
2067 term_header=gtkutil.h
2070 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2071 dnl other platforms.
2074 if test "${with_dbus}" = "yes"; then
2075 PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
2076 if test "$HAVE_DBUS" = yes; then
2077 LIBS="$LIBS $DBUS_LIBS"
2078 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2079 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2080 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2082 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2083 dbus_type_is_valid \
2084 dbus_validate_bus_name \
2085 dbus_validate_path \
2086 dbus_validate_interface \
2087 dbus_validate_member)
2093 dnl GSettings has been tested under GNU/Linux only.
2095 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2096 PKG_CHECK_MODULES(GSETTINGS, gio-2.0 >= 2.26, HAVE_GSETTINGS=yes, HAVE_GSETTINGS=no)
2097 if test "$HAVE_GSETTINGS" = "yes"; then
2098 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2099 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2100 SETTINGS_LIBS="$GSETTINGS_LIBS"
2104 dnl GConf has been tested under GNU/Linux only.
2105 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2107 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2108 PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
2109 if test "$HAVE_GCONF" = yes; then
2110 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2111 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2112 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2113 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2117 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2118 PKG_CHECK_MODULES(GOBJECT, gobject-2.0 >= 2.0, HAVE_GOBJECT=yes, HAVE_GOBJECT=no)
2119 if test "$HAVE_GOBJECT" = "yes"; then
2120 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2121 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2123 SAVE_CFLAGS="$CFLAGS"
2125 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2126 LIBS="$SETTINGS_LIBS $LIBS"
2127 AC_CHECK_FUNCS([g_type_init])
2128 CFLAGS="$SAVE_CFLAGS"
2131 AC_SUBST(SETTINGS_CFLAGS)
2132 AC_SUBST(SETTINGS_LIBS)
2135 dnl SELinux is available for GNU/Linux only.
2138 if test "${with_selinux}" = "yes"; then
2139 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2140 if test "$HAVE_LIBSELINUX" = yes; then
2141 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2142 LIBSELINUX_LIBS=-lselinux
2145 AC_SUBST(LIBSELINUX_LIBS)
2148 HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=no
2149 if test "${with_gnutls}" = "yes" ; then
2150 PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6], HAVE_GNUTLS=yes, HAVE_GNUTLS=no)
2151 if test "${HAVE_GNUTLS}" = "yes"; then
2152 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2155 CFLAGS="$CFLAGS $LIBGNUTLS_CFLAGS"
2156 LIBS="$LIBGNUTLS_LIBS $LIBS"
2157 AC_CHECK_FUNCS(gnutls_certificate_set_verify_function, HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=yes)
2159 if test "${HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY}" = "yes"; then
2160 AC_DEFINE(HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY, 1, [Define if using GnuTLS certificate verification callbacks.])
2164 AC_SUBST(LIBGNUTLS_LIBS)
2165 AC_SUBST(LIBGNUTLS_CFLAGS)
2167 dnl Do not put whitespace before the #include statements below.
2168 dnl Older compilers (eg sunos4 cc) choke on it.
2171 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2172 if test "$with_xaw3d" != no; then
2173 AC_CACHE_VAL(emacs_cv_xaw3d,
2174 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2175 #include <X11/Intrinsic.h>
2176 #include <X11/Xaw3d/Simple.h>]],
2178 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2179 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2180 emacs_cv_xaw3d=no)])
2184 if test $emacs_cv_xaw3d = yes; then
2185 AC_MSG_CHECKING(for xaw3d)
2186 AC_MSG_RESULT([yes; using Lucid toolkit])
2190 AC_DEFINE(HAVE_XAW3D, 1,
2191 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2193 AC_MSG_CHECKING(for xaw3d)
2195 AC_MSG_CHECKING(for libXaw)
2196 AC_CACHE_VAL(emacs_cv_xaw,
2197 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2198 #include <X11/Intrinsic.h>
2199 #include <X11/Xaw/Simple.h>]],
2203 if test $emacs_cv_xaw = yes; then
2204 AC_MSG_RESULT([yes; using Lucid toolkit])
2207 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2208 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2210 AC_MSG_ERROR([No X toolkit could be found.
2211 If you are sure you want Emacs compiled without an X toolkit, pass
2213 to configure. Otherwise, install the development libraries for the toolkit
2214 that you want to use (e.g. Gtk+) and re-run configure.])
2219 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2222 if test "${USE_X_TOOLKIT}" != "none"; then
2223 AC_MSG_CHECKING(X11 toolkit version)
2224 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2225 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2226 [[#if XtSpecificationRelease < 6
2229 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2230 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2231 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2232 AC_MSG_RESULT(6 or newer)
2233 AC_DEFINE(HAVE_X11XTR6, 1,
2234 [Define to 1 if you have the X11R6 or newer version of Xt.])
2235 LIBXTR6="-lSM -lICE"
2237 ## Use libw.a along with X11R6 Xt.
2238 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2241 AC_MSG_RESULT(before 6)
2244 dnl If using toolkit, check whether libXmu.a exists.
2245 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2247 if test x$HAVE_X11XTR6 = xyes; then
2248 LIBS="-lXt -lSM -lICE $LIBS"
2252 AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
2253 test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
2254 dnl ac_cv_lib_Xmu_XmuConvertStandardSelection is also referenced below.
2258 dnl FIXME the logic here seems weird, but this is what cpp was doing.
2259 dnl Why not just test for libxmu in the normal way?
2262 ## These systems don't supply Xmu.
2264 test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
2269 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
2270 if test "${HAVE_X11}" = "yes"; then
2271 if test "${USE_X_TOOLKIT}" != "none"; then
2272 AC_CHECK_LIB(Xext, XShapeQueryExtension)
2277 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2278 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2279 if test -d /usr/include/openmotif; then
2280 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2281 emacs_cv_openmotif=yes
2282 case "$canonical" in
2283 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2284 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2287 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2290 emacs_cv_openmotif=no
2292 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2293 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2294 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2297 Motif version prior to 2.1.
2299 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2300 if test $emacs_cv_motif_version_2_1 = yes; then
2301 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2302 if test x$emacs_cv_openmotif = xyes; then
2303 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2306 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2307 # We put this in CFLAGS temporarily to precede other -I options
2308 # that might be in CFLAGS temporarily.
2309 # We put this in CPPFLAGS where it precedes the other -I options.
2310 OLD_CPPFLAGS=$CPPFLAGS
2312 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2313 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2314 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2316 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2317 if test $emacs_cv_lesstif = yes; then
2318 # Make sure this -I option remains in CPPFLAGS after it is set
2319 # back to REAL_CPPFLAGS.
2320 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2321 # have those other -I options anyway. Ultimately, having this
2322 # directory ultimately in CPPFLAGS will be enough.
2323 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2324 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2327 CPPFLAGS=$OLD_CPPFLAGS
2330 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2331 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2334 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2335 dnl using Motif or Xaw3d is available, and unless
2336 dnl --with-toolkit-scroll-bars=no was specified.
2338 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2339 [Define to 1 if we should use toolkit scroll bars.])dnl
2340 USE_TOOLKIT_SCROLL_BARS=no
2341 if test "${with_toolkit_scroll_bars}" != "no"; then
2342 if test "${USE_X_TOOLKIT}" != "none"; then
2343 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2344 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2346 USE_TOOLKIT_SCROLL_BARS=yes
2347 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2348 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2349 USE_TOOLKIT_SCROLL_BARS=yes
2351 elif test "${HAVE_GTK}" = "yes"; then
2352 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2353 USE_TOOLKIT_SCROLL_BARS=yes
2354 elif test "${HAVE_NS}" = "yes"; then
2355 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2356 USE_TOOLKIT_SCROLL_BARS=yes
2357 elif test "${HAVE_W32}" = "yes"; then
2358 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2359 USE_TOOLKIT_SCROLL_BARS=yes
2363 dnl See if XIM is available.
2364 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2365 #include <X11/Xlib.h>
2366 #include <X11/Xresource.h>]],
2367 [[XIMProc callback;]])],
2369 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2372 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2374 if test "${with_xim}" != "no"; then
2375 AC_DEFINE(USE_XIM, 1,
2376 [Define to 1 if we should use XIM, if it is available.])
2380 if test "${HAVE_XIM}" != "no"; then
2382 if test "$GCC" = yes; then
2383 CFLAGS="$CFLAGS --pedantic-errors"
2385 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2386 #include <X11/Xlib.h>
2387 #include <X11/Xresource.h>]],
2393 XPointer *client_data;
2395 /* If we're not using GCC, it's probably not XFree86, and this is
2396 probably right, but we can't use something like --pedantic-errors. */
2397 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2398 char*, XIMProc, XPointer*);
2400 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2402 [emacs_cv_arg6_star=yes])
2403 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2404 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2405 either XPointer or XPointer*.])dnl
2406 if test "$emacs_cv_arg6_star" = yes; then
2407 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2409 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2414 ### Start of font-backend (under any platform) section.
2415 # (nothing here yet -- this is a placeholder)
2416 ### End of font-backend (under any platform) section.
2418 ### Start of font-backend (under X11) section.
2419 if test "${HAVE_X11}" = "yes"; then
2420 PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
2422 ## Use -lXft if available, unless `--with-xft=no'.
2424 if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2427 if test "x${with_xft}" != "xno"; then
2429 PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
2430 ## Because xftfont.c uses XRenderQueryExtension, we also
2431 ## need to link to -lXrender.
2433 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2434 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2435 OLD_CPPFLAGS="$CPPFLAGS"
2436 OLD_CFLAGS="$CFLAGS"
2438 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2439 CFLAGS="$CFLAGS $XFT_CFLAGS"
2440 XFT_LIBS="-lXrender $XFT_LIBS"
2441 LIBS="$XFT_LIBS $LIBS"
2442 AC_CHECK_HEADER(X11/Xft/Xft.h,
2443 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS))
2445 if test "${HAVE_XFT}" = "yes"; then
2446 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2448 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2450 CPPFLAGS="$OLD_CPPFLAGS"
2451 CFLAGS="$OLD_CFLAGS"
2453 fi # "${HAVE_XFT}" = "yes"
2454 fi # "$HAVE_XFT" != no
2455 fi # "x${with_xft}" != "xno"
2457 ## We used to allow building with FreeType and without Xft.
2458 ## However, the ftx font backend driver is not in good shape.
2459 if test "$HAVE_XFT" != "yes"; then
2460 dnl For the "Does Emacs use" message at the end.
2464 dnl Strict linkers fail with
2465 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2466 dnl if -lfreetype is not specified.
2467 dnl The following is needed to set FREETYPE_LIBS.
2468 PKG_CHECK_MODULES(FREETYPE, freetype2, HAVE_FREETYPE=yes,
2471 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2475 if test "${HAVE_FREETYPE}" = "yes"; then
2476 AC_DEFINE(HAVE_FREETYPE, 1,
2477 [Define to 1 if using the freetype and fontconfig libraries.])
2478 if test "${with_libotf}" != "no"; then
2479 PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
2481 if test "$HAVE_LIBOTF" = "yes"; then
2482 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2483 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2484 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2485 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2486 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2487 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2488 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2492 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2493 dnl Does the new font backend require it, or can it work without it?
2497 if test "${HAVE_LIBOTF}" = yes; then
2498 if test "${with_m17n_flt}" != "no"; then
2499 PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
2500 if test "$HAVE_M17N_FLT" = "yes"; then
2501 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2512 ### End of font-backend (under X11) section.
2514 AC_SUBST(FREETYPE_CFLAGS)
2515 AC_SUBST(FREETYPE_LIBS)
2516 AC_SUBST(FONTCONFIG_CFLAGS)
2517 AC_SUBST(FONTCONFIG_LIBS)
2518 AC_SUBST(LIBOTF_CFLAGS)
2519 AC_SUBST(LIBOTF_LIBS)
2520 AC_SUBST(M17N_FLT_CFLAGS)
2521 AC_SUBST(M17N_FLT_LIBS)
2523 ### Use -lXpm if available, unless `--with-xpm=no'.
2527 if test "${HAVE_W32}" = "yes"; then
2528 if test "${with_xpm}" != "no"; then
2529 SAVE_CPPFLAGS="$CPPFLAGS"
2530 SAVE_LDFLAGS="$LDFLAGS"
2531 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
2532 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
2533 AC_CHECK_HEADER(X11/xpm.h,
2534 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
2535 if test "${HAVE_XPM}" = "yes"; then
2536 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2537 AC_EGREP_CPP(no_return_alloc_pixels,
2538 [#include "X11/xpm.h"
2539 #ifndef XpmReturnAllocPixels
2540 no_return_alloc_pixels
2542 ], HAVE_XPM=no, HAVE_XPM=yes)
2544 if test "${HAVE_XPM}" = "yes"; then
2545 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
2549 CPPFLAGS="$SAVE_CPPFLAGS"
2550 LDFLAGS="$SAVE_LDFLAGS"
2555 if test "${HAVE_XPM}" = "yes"; then
2556 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2561 if test "${HAVE_X11}" = "yes"; then
2562 if test "${with_xpm}" != "no"; then
2563 AC_CHECK_HEADER(X11/xpm.h,
2564 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2565 if test "${HAVE_XPM}" = "yes"; then
2566 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2567 AC_EGREP_CPP(no_return_alloc_pixels,
2568 [#include "X11/xpm.h"
2569 #ifndef XpmReturnAllocPixels
2570 no_return_alloc_pixels
2572 ], HAVE_XPM=no, HAVE_XPM=yes)
2574 if test "${HAVE_XPM}" = "yes"; then
2582 if test "${HAVE_XPM}" = "yes"; then
2583 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2590 ### Use -ljpeg if available, unless `--with-jpeg=no'.
2593 if test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2594 if test "${with_jpeg}" != "no"; then
2595 dnl Checking for jpeglib.h can lose because of a redefinition of
2597 AC_CHECK_HEADER(jerror.h,
2598 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
2601 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2602 if test "${HAVE_JPEG}" = "yes"; then
2603 AC_DEFINE(HAVE_JPEG)
2604 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2605 [#include <jpeglib.h>
2606 version=JPEG_LIB_VERSION
2608 [AC_DEFINE(HAVE_JPEG)],
2609 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2612 if test "${HAVE_JPEG}" = "yes"; then
2618 ### Use -lpng if available, unless `--with-png=no'.
2621 if test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2622 if test "${with_png}" != "no"; then
2623 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
2624 # in /usr/include/libpng.
2625 AC_CHECK_HEADERS(png.h libpng/png.h, break)
2626 if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
2627 AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
2631 if test "${HAVE_PNG}" = "yes"; then
2632 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2633 LIBPNG="-lpng -lz -lm"
2635 AC_CHECK_DECL(png_longjmp,
2637 [AC_DEFINE(PNG_DEPSTRUCT, [],
2638 [Define to empty to suppress deprecation warnings when building
2639 with --enable-gcc-warnings and with libpng versions before 1.5,
2640 which lack png_longjmp.])],
2641 [[#ifdef HAVE_LIBPNG_PNG_H
2642 # include <libpng/png.h>
2651 ### Use -ltiff if available, unless `--with-tiff=no'.
2654 if test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2655 if test "${with_tiff}" != "no"; then
2656 AC_CHECK_HEADER(tiffio.h,
2658 # At least one tiff package requires the jpeg library.
2659 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
2660 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
2663 if test "${HAVE_TIFF}" = "yes"; then
2664 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
2665 dnl FIXME -lz -lm, as per libpng?
2671 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
2674 if test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
2675 || test "${HAVE_W32}" = "yes"; then
2676 AC_CHECK_HEADER(gif_lib.h,
2677 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
2678 # Earlier versions can crash Emacs.
2679 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])
2681 if test "$HAVE_GIF" = yes; then
2683 elif test "$HAVE_GIF" = maybe; then
2684 # If gif_lib.h but no libgif, try libungif.
2685 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
2686 test "$HAVE_GIF" = yes && LIBGIF=-lungif
2689 if test "${HAVE_GIF}" = "yes"; then
2690 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
2695 dnl Check for required libraries.
2696 if test "${HAVE_X11}" = "yes"; then
2699 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
2700 MISSING="libXpm" && WITH_NO="--with-xpm=no"
2701 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
2702 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
2703 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
2704 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
2705 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
2706 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
2707 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
2708 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
2710 if test "X${MISSING}" != X; then
2711 AC_MSG_ERROR([The following required libraries were not found:
2713 Maybe some development libraries/packages are missing?
2714 If you don't want to link with them give
2716 as options to configure])
2720 ### Use -lgpm if available, unless `--with-gpm=no'.
2723 if test "${with_gpm}" != "no"; then
2724 AC_CHECK_HEADER(gpm.h,
2725 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
2727 if test "${HAVE_GPM}" = "yes"; then
2728 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
2734 dnl Check for malloc/malloc.h on darwin
2735 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
2738 ### Use NeXTstep API to implement GUI.
2739 if test "${HAVE_NS}" = "yes"; then
2740 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
2741 if test "${NS_IMPL_COCOA}" = "yes"; then
2742 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
2744 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
2745 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
2746 # See also .m.o rule in Makefile.in */
2747 # FIXME: are all these flags really needed? Document here why. */
2748 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
2749 ## Extra CFLAGS applied to src/*.m files.
2750 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"
2752 # We also have mouse menus.
2757 if test "${HAVE_W32}" = "yes"; then
2761 ### Use session management (-lSM -lICE) if available
2764 if test "${HAVE_X11}" = "yes"; then
2765 AC_CHECK_HEADER(X11/SM/SMlib.h,
2766 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
2768 if test "${HAVE_X_SM}" = "yes"; then
2769 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
2773 *) LIBS="$LIBXSM $LIBS" ;;
2779 ### Use libxml (-lxml2) if available
2781 if test "${with_xml2}" != "no"; then
2782 ### I'm not sure what the version number should be, so I just guessed.
2783 PKG_CHECK_MODULES(LIBXML2, libxml-2.0 > 2.6.17, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2784 if test "${HAVE_LIBXML2}" = "yes"; then
2785 LIBS="$LIBXML2_LIBS $LIBS"
2786 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2787 if test "${HAVE_LIBXML2}" = "yes"; then
2788 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
2795 AC_SUBST(LIBXML2_LIBS)
2796 AC_SUBST(LIBXML2_CFLAGS)
2798 # If netdb.h doesn't declare h_errno, we must declare it by hand.
2799 AC_CACHE_CHECK(whether netdb declares h_errno,
2800 emacs_cv_netdb_declares_h_errno,
2801 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
2802 [[return h_errno;]])],
2803 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
2804 if test $emacs_cv_netdb_declares_h_errno = yes; then
2805 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
2808 # sqrt and other floating-point functions such as fmod and frexp
2809 # are found in -lm on most systems.
2810 AC_CHECK_LIB(m, sqrt)
2812 # Check for mail-locking functions in a "mail" library. Probably this should
2813 # have the same check as for liblockfile below.
2814 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
2815 if test $have_mail = yes; then
2817 LIBS="$LIBS_MAIL $LIBS"
2818 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
2822 dnl Debian, at least:
2823 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
2824 if test $have_lockfile = yes; then
2825 LIBS_MAIL=-llockfile
2826 LIBS="$LIBS_MAIL $LIBS"
2827 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
2829 # If we have the shared liblockfile, assume we must use it for mail
2830 # locking (e.g. Debian). If we couldn't link against liblockfile
2831 # (no liblockfile.a installed), ensure that we don't need to.
2832 dnl This works for files generally, not just executables.
2833 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
2834 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
2835 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
2836 if test $ac_cv_prog_liblockfile = yes; then
2837 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
2838 This probably means that movemail could lose mail.
2839 There may be a `development' package to install containing liblockfile.])
2842 AC_CHECK_HEADERS_ONCE(maillock.h)
2845 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
2846 ## interlock access to the mail spool. The alternative is a lock file named
2847 ## /usr/spool/mail/$USER.lock.
2850 aix4-2) mail_lock="lockf" ;;
2852 gnu|freebsd|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
2854 ## On GNU/Linux systems, both methods are used by various mail programs.
2855 ## I assume most people are using newer mailers that have heard of flock.
2856 ## Change this if you need to.
2857 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
2858 ## configure gets the right answers, and that means *NOT* using flock.
2859 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
2860 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
2861 ## Debian maintainer hasn't provided a clean fix for Emacs.
2862 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
2863 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
2864 ## correct logic. -- fx
2865 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
2866 ## liblockfile is a Free Software replacement for libmail, used on
2867 ## Debian systems and elsewhere. -rfr.
2870 if test $have_mail = yes || test $have_lockfile = yes; then
2871 test $ac_cv_header_maillock_h = yes && mail_lock=no
2877 case "$mail_lock" in
2878 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
2880 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
2882 *) BLESSMAIL_TARGET="need-blessmail" ;;
2884 AC_SUBST(BLESSMAIL_TARGET)
2887 AC_CHECK_FUNCS(gethostname \
2888 closedir getrusage get_current_dir_name \
2890 fpathconf select euidaccess getpagesize setlocale \
2891 utimes getrlimit setrlimit setpgid getcwd shutdown getaddrinfo \
2892 __fpending strsignal setitimer \
2893 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
2894 gai_strerror mkstemp getline getdelim fsync sync \
2895 difftime posix_memalign \
2896 getpwent endpwent getgrent endgrent \
2898 cfmakeraw cfsetspeed copysign __executable_start)
2900 dnl getwd appears to be buggy on SVR4.2, so we don't use it.
2901 if test $opsys = unixware; then
2902 dnl In case some other test ends up checking for getwd.
2903 AC_DEFINE(BROKEN_GETWD, 1, [Define if getwd should not be used.])
2905 AC_CHECK_FUNCS(getwd)
2908 ## Eric Backus <ericb@lsid.hp.com> says, HP-UX 9.x on HP 700 machines
2909 ## has a broken `rint' in some library versions including math library
2910 ## version number A.09.05.
2911 ## You can fix the math library by installing patch number PHSS_4630.
2912 ## But we can fix it more reliably for Emacs by just not using rint.
2913 ## We also skip HAVE_RANDOM - see comments in src/conf_post.h.
2916 *) AC_CHECK_FUNCS(random rint) ;;
2919 dnl Cannot use AC_CHECK_FUNCS
2920 AC_CACHE_CHECK([for __builtin_unwind_init],
2921 emacs_cv_func___builtin_unwind_init,
2922 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
2923 emacs_cv_func___builtin_unwind_init=yes,
2924 emacs_cv_func___builtin_unwind_init=no)])
2925 if test $emacs_cv_func___builtin_unwind_init = yes; then
2926 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
2927 [Define to 1 if you have the `__builtin_unwind_init' function.])
2930 AC_CHECK_HEADERS_ONCE(sys/un.h)
2937 AC_CHECK_FUNCS(grantpt)
2939 # PTY-related GNU extensions.
2940 AC_CHECK_FUNCS(getpt posix_openpt)
2942 # Check this now, so that we will NOT find the above functions in ncurses.
2943 # That is because we have not set up to link ncurses in lib-src.
2944 # It's better to believe a function is not available
2945 # than to expect to find it in ncurses.
2946 # Also we need tputs and friends to be able to build at all.
2947 AC_MSG_CHECKING([for library containing tputs])
2948 # Run a test program that contains a call to tputs, a call that is
2949 # never executed. This tests whether a pre-'main' dynamic linker
2950 # works with the library. It's too much trouble to actually call
2951 # tputs in the test program, due to portability hassles. When
2952 # cross-compiling, assume the test program will run if it links.
2953 AC_DEFUN([tputs_link_source], [
2955 [[extern void tputs (const char *, int, int (*)(int));
2956 int main (int argc, char **argv)
2959 tputs (argv[0], 0, 0);
2963 # Maybe curses should be tried earlier?
2964 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
2965 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
2967 if test -z "$tputs_library"; then
2971 LIBS_TERMCAP=-l$tputs_library
2973 LIBS="$LIBS_TERMCAP $LIBS"
2975 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
2976 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
2978 if test "X$msg" != Xno; then
2982 AC_MSG_RESULT([$msg])
2983 if test "X$msg" = Xno; then
2984 AC_MSG_ERROR([The required function `tputs' was not found in any library.
2985 The following libraries were tried (in order):
2986 libtinfo, libncurses, libterminfo, libtermcap, libcurses
2987 Please try installing whichever of these libraries is most appropriate
2988 for your system, together with its header files.
2989 For example, a libncurses-dev(el) or similar package.])
2992 ## Use termcap instead of terminfo?
2993 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
2995 ## FIXME? In the cases below where we unconditionally set
2996 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
2997 ## if that was found above to have tputs.
2998 ## Should we use the gnu* logic everywhere?
3000 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3001 ## The ncurses library has been moved out of the System framework in
3002 ## Mac OS X 10.2. So if configure detects it, set the command-line
3003 ## option to use it.
3004 darwin) LIBS_TERMCAP="-lncurses" ;;
3006 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3009 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3010 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3011 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3012 [[#if __FreeBSD_version < 400000
3015 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3017 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3019 if test $emacs_cv_freebsd_terminfo = yes; then
3020 LIBS_TERMCAP="-lncurses"
3023 LIBS_TERMCAP="-ltermcap"
3028 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3030 LIBS_TERMCAP="-ltermcap"
3034 openbsd) LIBS_TERMCAP="-lncurses" ;;
3036 ## hpux: Make sure we get select from libc rather than from libcurses
3037 ## because libcurses on HPUX 10.10 has a broken version of select.
3038 ## We used to use -lc -lcurses, but this may be cleaner.
3039 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3040 # set that way, now it uses the default). Isn't this a contradiction?
3041 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3045 TERMCAP_OBJ=tparam.o
3046 if test $TERMINFO = yes; then
3047 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3048 TERMCAP_OBJ=terminfo.o
3050 AC_SUBST(LIBS_TERMCAP)
3051 AC_SUBST(TERMCAP_OBJ)
3054 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3055 # On Darwin, res_init appears not to be useful: see bug#562 and
3056 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3059 if test $opsys != darwin; then
3061 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3062 #include <arpa/nameser.h>
3063 #include <resolv.h>]],
3064 [[return res_init();]])],
3065 have_res_init=yes, have_res_init=no)
3066 if test "$have_res_init" = no; then
3068 LIBS="$LIBS -lresolv"
3069 AC_MSG_CHECKING(for res_init with -lresolv)
3070 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3071 #include <arpa/nameser.h>
3072 #include <resolv.h>]],
3073 [[return res_init();]])],
3074 have_res_init=yes, have_res_init=no)
3075 AC_MSG_RESULT($have_res_init)
3076 if test "$have_res_init" = yes ; then
3082 if test "$have_res_init" = yes; then
3083 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3087 # Do we need the Hesiod library to provide the support routines?
3088 dnl FIXME? Should we be skipping this on Darwin too?
3090 if test "$with_hesiod" != no ; then
3091 # Don't set $LIBS here -- see comments above. FIXME which comments?
3092 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3093 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3094 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3095 if test "$resolv" = yes ; then
3100 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3101 hesiod=yes, :, $RESOLVLIB)])
3103 if test x"$hesiod" = xyes; then
3104 AC_DEFINE(HAVE_LIBHESIOD, 1,
3105 [Define to 1 if you have the hesiod library (-lhesiod).])
3111 # Do we need libresolv (due to res_init or Hesiod)?
3112 if test "$resolv" = yes && test $opsys != darwin; then
3113 AC_DEFINE(HAVE_LIBRESOLV, 1,
3114 [Define to 1 if you have the resolv library (-lresolv).])
3121 # These tell us which Kerberos-related libraries to use.
3128 if test "${with_kerberos}" != no; then
3129 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3130 if test $have_com_err = yes; then
3131 COM_ERRLIB=-lcom_err
3132 LIBS="$COM_ERRLIB $LIBS"
3133 AC_DEFINE(HAVE_LIBCOM_ERR, 1, [Define to 1 if you have the `com_err' library (-lcom_err).])
3135 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3136 if test $have_crypto = yes; then
3138 LIBS="$CRYPTOLIB $LIBS"
3139 AC_DEFINE(HAVE_LIBCRYPTO, 1, [Define to 1 if you have the `crypto' library (-lcrypto).])
3141 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3142 if test $have_k5crypto = yes; then
3143 CRYPTOLIB=-lk5crypto
3144 LIBS="$CRYPTOLIB $LIBS"
3145 AC_DEFINE(HAVE_LIBK5CRYPTO, 1, [Define to 1 if you have the `k5crypto' library (-lk5crypto).])
3147 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3148 if test $have_krb5=yes; then
3150 LIBS="$KRB5LIB $LIBS"
3151 AC_DEFINE(HAVE_LIBKRB5, 1, [Define to 1 if you have the `krb5' library (-lkrb5).])
3153 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3154 if test "${with_kerberos5}" = no; then
3155 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3156 if test $have_des425 = yes; then
3158 LIBS="$DESLIB $LIBS"
3159 AC_DEFINE(HAVE_LIBDES425, 1, [Define to 1 if you have the `des425' library (-ldes425).])
3161 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3162 if test $have_des = yes; then
3164 LIBS="$DESLIB $LIBS"
3165 AC_DEFINE(HAVE_LIBDES, 1, [Define to 1 if you have the `des' library (-ldes).])
3168 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3169 if test $have_krb4 = yes; then
3171 LIBS="$KRB4LIB $LIBS"
3172 AC_DEFINE(HAVE_LIBKRB4, 1, [Define to 1 if you have the `krb4' library (-lkrb4).])
3174 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3175 if test $have_krb = yes; then
3177 LIBS="$KRB4LIB $LIBS"
3178 AC_DEFINE(HAVE_LIBKRB, 1, [Define to 1 if you have the `krb' library (-lkrb).])
3183 if test "${with_kerberos5}" != no; then
3184 AC_CHECK_HEADERS(krb5.h,
3185 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3186 [#include <krb5.h>])])
3188 AC_CHECK_HEADERS(des.h,,
3189 [AC_CHECK_HEADERS(kerberosIV/des.h,,
3190 [AC_CHECK_HEADERS(kerberos/des.h)])])
3191 AC_CHECK_HEADERS(krb.h,,
3192 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3193 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3195 AC_CHECK_HEADERS(com_err.h)
3198 AC_SUBST(COM_ERRLIB)
3204 AC_CHECK_FUNCS_ONCE(tzset)
3205 AC_MSG_CHECKING(whether localtime caches TZ)
3206 AC_CACHE_VAL(emacs_cv_localtime_cache,
3207 [if test x$ac_cv_func_tzset = xyes; then
3208 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3209 char TZ_GMT0[] = "TZ=GMT0";
3210 char TZ_PST8[] = "TZ=PST8";
3213 time_t now = time ((time_t *) 0);
3214 int hour_GMT0, hour_unset;
3215 if (putenv (TZ_GMT0) != 0)
3217 hour_GMT0 = localtime (&now)->tm_hour;
3219 hour_unset = localtime (&now)->tm_hour;
3220 if (putenv (TZ_PST8) != 0)
3222 if (localtime (&now)->tm_hour == hour_GMT0)
3225 if (localtime (&now)->tm_hour != hour_unset)
3228 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3229 [# If we have tzset, assume the worst when cross-compiling.
3230 emacs_cv_localtime_cache=yes])
3232 # If we lack tzset, report that localtime does not cache TZ,
3233 # since we can't invalidate the cache if we don't have tzset.
3234 emacs_cv_localtime_cache=no
3236 AC_MSG_RESULT($emacs_cv_localtime_cache)
3237 if test $emacs_cv_localtime_cache = yes; then
3238 AC_DEFINE(LOCALTIME_CACHE, 1,
3239 [Define to 1 if localtime caches TZ.])
3243 AC_CHECK_FUNC(socket, , ok_so_far=no)
3244 if test $ok_so_far = yes; then
3245 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3247 if test $ok_so_far = yes; then
3248 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3250 if test $ok_so_far = yes; then
3251 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3252 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3253 [Define to 1 if you have inet sockets.])
3256 if test -f /usr/lpp/X11/bin/smt.exp; then
3257 AC_DEFINE(HAVE_AIX_SMT_EXP, 1,
3258 [Define to 1 if the file /usr/lpp/X11/bin/smt.exp exists.])
3261 AC_MSG_CHECKING(whether system supports dynamic ptys)
3262 if test -d /dev/pts && ls -d /dev/ptmx > /dev/null 2>&1 ; then
3264 AC_DEFINE(HAVE_DEV_PTMX, 1, [Define to 1 if dynamic ptys are supported.])
3269 dnl Check for a Solaris 2.4 vfork bug that Autoconf misses (through 2.69).
3270 dnl This can be removed once we assume Autoconf 2.70.
3272 *-solaris2.4 | *-solaris2.4.*)
3273 dnl Disable the Autoconf-generated vfork test.
3274 : ${ac_cv_func_vfork_works=no};;
3279 AC_CHECK_FUNCS(snprintf)
3281 dnl Adapted from Haible's version.
3282 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3283 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3284 [[char* cs = nl_langinfo(CODESET);]])],
3285 emacs_cv_langinfo_codeset=yes,
3286 emacs_cv_langinfo_codeset=no)
3288 if test $emacs_cv_langinfo_codeset = yes; then
3289 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3290 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3295 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3296 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3297 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3298 if test "$emacs_cv_c_restrict_arr" = yes; then
3299 AC_DEFINE(__restrict_arr, __restrict,
3300 [Define to compiler's equivalent of C99 restrict keyword in array
3301 declarations. Define as empty for no equivalent.])
3304 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3305 dnl how the tty code is related to POSIX and/or other versions of termios.
3306 dnl The following looks like a useful start.
3308 dnl AC_SYS_POSIX_TERMIOS
3309 dnl if test $ac_cv_sys_posix_termios = yes; then
3310 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3311 dnl and macros for terminal control.])
3312 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3315 dnl Turned on June 1996 supposing nobody will mind it.
3316 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3317 in the full name stands for the login id.])
3319 dnl Every platform that uses configure (ie every non-MS platform)
3320 dnl supports this. There is a create-lockfiles option you can
3321 dnl customize if you do not want the lock files to be written.
3322 dnl So it is not clear that this #define still needs to exist.
3323 AC_DEFINE(CLASH_DETECTION, 1, [Define if you want lock files to be written,
3324 so that Emacs can tell instantly when you try to modify a file that
3325 someone else has modified in his/her Emacs.])
3327 dnl Everybody supports this, except MS.
3328 dnl Seems like the kind of thing we should be testing for, though.
3329 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3330 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3332 dnl Everybody supports this, except MS-DOS.
3333 dnl Seems like the kind of thing we should be testing for, though.
3334 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3335 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3336 4.2-compatible sockets.])
3338 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3340 AC_DEFINE(NULL_DEVICE, ["/dev/null"], [Name of the file to open to get
3341 a null file, or a data sink.])
3343 AC_DEFINE(SEPCHAR, [':'], [Character that separates PATH elements.])
3345 dnl Everybody supports this, except MS-DOS.
3346 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3348 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3351 AC_DEFINE(DIRECTORY_SEP, ['/'],
3352 [Character that separates directories in a file name.])
3354 dnl Only used on MS platforms.
3355 AH_TEMPLATE(DEVICE_SEP, [Character that separates a device in a file name.])
3357 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
3358 [Returns true if character is a device separator.])
3360 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
3361 [Returns true if character is a directory separator.])
3363 dnl On MS, this also accepts IS_DEVICE_SEP.
3364 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
3365 [Returns true if character is any form of separator.])
3368 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
3372 dnl Unfortunately without libXmu we cannot support EditRes.
3373 if test x$ac_cv_lib_Xmu_XmuConvertStandardSelection != xyes; then
3374 AC_DEFINE(NO_EDITRES, 1)
3379 dnl Assar Westerlund <assar@sics.se> says this is necessary for
3380 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
3381 AC_DEFINE(NO_EDITRES, 1)
3387 irix6-5 | sol2* | unixware )
3388 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
3389 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
3390 dnl need the constant to dimension an array. So wire in the appropriate
3392 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
3396 emacs_broken_SIGIO=no
3399 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
3400 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
3401 hpux* | irix6-5 | openbsd | sol2* | unixware )
3402 emacs_broken_SIGIO=yes
3406 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
3407 dnl the way this system works, libc functions that return malloced
3408 dnl memory use the libc malloc implementation. Calling xfree or
3409 dnl xrealloc on the results of such functions results in a crash.
3411 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
3412 dnl but that does not currently work on this system.
3414 dnl It is possible to completely override the malloc implementation on
3415 dnl AIX, but that involves putting the malloc functions in a shared
3416 dnl library and setting the MALLOCTYPE environment variable to point to
3417 dnl that shared library.
3419 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
3420 dnl to avoid a crash just use the Emacs implementation for that function.
3422 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
3423 dnl of this file, so that we do not check for get_current_dir_name
3424 dnl on AIX. But that might be fragile if something else ends
3425 dnl up testing for get_current_dir_name as a dependency.
3426 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
3427 get_current_dir_name should not be used.])
3431 dnl Circumvent a bug in FreeBSD. In the following sequence of
3432 dnl writes/reads on a PTY, read(2) returns bogus data:
3434 dnl write(2) 1022 bytes
3435 dnl write(2) 954 bytes, get EAGAIN
3436 dnl read(2) 1024 bytes in process_read_output
3437 dnl read(2) 11 bytes in process_read_output
3439 dnl That is, read(2) returns more bytes than have ever been written
3440 dnl successfully. The 1033 bytes read are the 1022 bytes written
3441 dnl successfully after processing (for example with CRs added if the
3442 dnl terminal is set up that way which it is here). The same bytes will
3443 dnl be seen again in a later read(2), without the CRs.
3444 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
3445 work around an issue when reading from a PTY.])
3451 dnl FIXME Can't we test if this exists (eg /proc/$$)?
3452 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
3457 darwin | freebsd | netbsd | openbsd )
3458 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
3459 close a pty to make it a controlling terminal (it is already a
3460 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
3464 dnl FIXME Surely we can test for this rather than hard-code it.
3466 netbsd | openbsd) sound_device="/dev/audio" ;;
3467 *) sound_device="/dev/dsp" ;;
3471 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
3472 [Name of the default sound device.])
3475 dnl Emacs can read input using SIGIO and buffering characters itself,
3476 dnl or using CBREAK mode and making C-g cause SIGINT.
3477 dnl The choice is controlled by the variable interrupt_input.
3479 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
3481 dnl Emacs uses the presence of the USABLE_SIGIO macro
3482 dnl to indicate whether or not signal-driven I/O is possible. It uses
3483 dnl INTERRUPT_INPUT to decide whether to use it by default.
3485 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
3486 dnl CBREAK mode has two disadvantages
3487 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
3488 dnl I hear that in system V this problem does not exist.
3489 dnl 2) Control-G causes output to be discarded.
3490 dnl I do not know whether this can be fixed in system V.
3492 dnl Another method of doing input is planned but not implemented.
3493 dnl It would have Emacs fork off a separate process
3494 dnl to read the input and send it to the true Emacs process
3497 darwin | gnu-linux | gnu-kfreebsd )
3498 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
3503 dnl If the system's imake configuration file defines `NeedWidePrototypes'
3504 dnl as `NO', we must define NARROWPROTO manually. Such a define is
3505 dnl generated in the Makefile generated by `xmkmf'. If we don't define
3506 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
3507 dnl taking float or double parameters.
3509 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
3510 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
3511 file defines `NeedWidePrototypes' as `NO'.])
3516 dnl Used in process.c, this must be a loop, even if it only runs once.
3517 dnl (Except on SGI; see below. Take that, clarity and consistency!)
3518 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
3519 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
3520 dnl trying suffixes 0-16.
3521 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
3522 first PTY, if PTYs are supported.])
3523 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
3524 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
3525 end of a PTY, if non-standard.])
3526 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
3527 end of a PTY, if non-standard.])
3531 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
3532 dnl You allocate a pty by opening /dev/ptc to get the master side.
3533 dnl To get the name of the slave side, you just ttyname() the master side.
3534 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
3535 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
3539 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3540 dnl multi-line AC_DEFINEs are hard. :(
3541 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)])
3542 AC_DEFINE(PTY_NAME_SPRINTF, [])
3543 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3546 dnl FIXME? Maybe use same as freebsd - see bug#12040.
3548 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3549 dnl Not used, because PTY_ITERATION is defined.
3550 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3551 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
3552 dnl But we don't have to block SIGCHLD because it is blocked in the
3553 dnl implementation of grantpt.
3554 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (0)])
3555 AC_DEFINE(PTY_NAME_SPRINTF, [])
3556 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3560 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3563 gnu-linux | gnu-kfreebsd | freebsd | netbsd )
3565 if test "x$ac_cv_func_grantpt" = xyes; then
3566 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
3567 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3568 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
3569 dnl to prevent sigchld_handler from intercepting the child's death.
3570 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); }])
3571 dnl if HAVE_POSIX_OPENPT
3572 if test "x$ac_cv_func_posix_openpt" = xyes; then
3573 AC_DEFINE(PTY_OPEN, [fd = posix_openpt (O_RDWR | O_NOCTTY)])
3574 AC_DEFINE(PTY_NAME_SPRINTF, [])
3576 elif test "x$ac_cv_func_getpt" = xyes; then
3577 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
3578 AC_DEFINE(PTY_NAME_SPRINTF, [])
3580 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
3583 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3588 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3589 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
3590 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
3594 dnl It looks like this cannot be right, because it is not a loop.
3595 dnl However, process.c actually does this:
3601 dnl which presumably makes it OK, since irix == sgi (?).
3602 dnl FIXME it seems like this special treatment is unnecessary?
3603 dnl Why can't irix use a single-trip loop like eg cygwin?
3604 AC_DEFINE(PTY_ITERATION, [])
3605 dnl Not used, because PTY_ITERATION is defined.
3606 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
3607 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); }])
3608 dnl No need to get the pty name at all.
3609 AC_DEFINE(PTY_NAME_SPRINTF, [])
3610 dnl No need to use sprintf to get the tty name--we get that from _getpty.
3611 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3615 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
3616 dnl from intercepting that death. If any child but grantpt's should die
3617 dnl within, it should be caught after sigrelse(2).
3618 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); }])
3622 dnl Comments are as per sol2*.
3623 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); }])
3630 dnl This change means that we don't loop through allocate_pty too
3631 dnl many times in the (rare) event of a failure.
3632 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
3633 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
3634 dnl Push various streams modules onto a PTY channel. Used in process.c.
3635 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.])
3640 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
3641 "typing" a signal character on the pty.])
3644 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
3645 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
3646 aix4-2 | cygwin | gnu | irix6-5 | freebsd | netbsd | openbsd )
3647 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3650 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
3651 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
3652 gnu-linux | gnu-kfreebsd )
3654 AC_MSG_CHECKING([for signals via characters])
3655 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3656 #include <linux/version.h>
3657 #if LINUX_VERSION_CODE < 0x20400
3658 # error "Linux version too old"
3660 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
3662 AC_MSG_RESULT([$emacs_signals_via_chars])
3663 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3668 dnl Used in dispnew.c
3669 AH_TEMPLATE(PENDING_OUTPUT_COUNT, [Number of chars of output in the
3670 buffer of a stdio stream.])
3672 AC_MSG_CHECKING([whether we are using the GNU C library])
3673 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3674 #include <features.h>
3675 #ifndef __GNU_LIBRARY__
3676 # error "this is not the GNU C library"
3678 ]], [[]])], emacs_glibc=yes, emacs_glibc=no)
3679 AC_MSG_RESULT([$emacs_glibc])
3681 if test $emacs_glibc = yes; then
3683 emacs_pending_output=unknown
3686 gnu | gnu-linux | gnu-kfreebsd )
3687 AC_MSG_CHECKING([for style of pending output formalism])
3688 dnl In autoconf 2.67 and later, we could use a single test
3689 dnl since the preprocessed output is accessible in "conftest.i".
3690 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3692 #if !defined (_IO_STDIO_H) && !defined (_STDIO_USES_IOSTREAM)
3693 # error "stdio definitions not found"
3695 ]], [[]])], emacs_pending_output=new, [])
3697 if test $emacs_pending_output = unknown; then
3699 gnu-linux | gnu-kfreebsd)
3700 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3703 # error "not using uclibc"
3705 ]], [[]])], emacs_pending_output=uclibc, emacs_pending_output=old)
3710 AC_MSG_RESULT([$emacs_pending_output])
3712 case $emacs_pending_output in
3714 dnl New C libio names.
3715 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE),
3716 [((FILE)->_IO_write_ptr - (FILE)->_IO_write_base)])
3719 dnl Using the uClibc library.
3720 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE),
3721 [((FILE)->__bufpos - (FILE)->__bufstart)])
3724 dnl Old C++ iostream names.
3725 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE),
3726 [((FILE)->_pptr - (FILE)->_pbase)])
3732 if test $emacs_pending_output = unknown; then
3733 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->__bufp - (FILE)->__buffer)])
3736 else dnl !emacs_glibc
3739 cygwin | darwin | freebsd | netbsd | openbsd )
3740 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->_p - (FILE)->_bf._base)])
3744 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->__ptr - (FILE)->__base)])
3748 dnl HAVE_STDIO_EXT_H && HAVE___FPENDING
3749 if test x$ac_cv_header_stdio_ext_h = xyes && \
3750 test x$ac_cv_func___fpending = xyes; then
3751 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [__fpending (FILE)])
3752 AC_DEFINE(DISPNEW_NEEDS_STDIO_EXT, 1,
3753 [Define if dispnew.c should include stdio_ext.h.])
3755 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->_ptr - (FILE)->_base)])
3762 dnl Used in vm-limit.c
3763 AH_TEMPLATE(DATA_START, [Address of the start of the data segment.])
3764 dnl Used in lisp.h, emacs.c, mem-limits.h
3765 dnl NEWS.18 describes this as "a number which contains
3766 dnl the high bits to be inclusive or'ed with pointers that are unpacked."
3767 AH_TEMPLATE(DATA_SEG_BITS, [Extra bits to be or'd in with any pointers
3768 stored in a Lisp_Object.])
3769 dnl if Emacs uses fewer than 32 bits for the value field of a LISP_OBJECT.
3773 dnl libc defines data_start.
3774 AC_DEFINE(DATA_START, [({ extern int data_start; (char *) &data_start; })])
3778 dnl The data segment on this machine always starts at address 0x40000000.
3779 AC_DEFINE(DATA_START, [0x40000000])
3780 AC_DEFINE(DATA_SEG_BITS, [0x40000000])
3783 AC_DEFINE(DATA_START, [0x10000000])
3784 AC_DEFINE(DATA_SEG_BITS, [0x10000000])
3789 AH_TEMPLATE(ULIMIT_BREAK_VALUE, [Undocumented.])
3790 AH_TEMPLATE(TAB3, [Undocumented.])
3793 darwin) AC_DEFINE(TAB3, OXTABS) ;;
3795 gnu | freebsd | netbsd | openbsd )
3796 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
3797 AC_DEFINE(TAB3, OXTABS)
3800 gnu-linux | gnu-kfreebsd )
3801 dnl libc-linux/sysdeps/linux/i386/ulimit.c says that due to shared
3802 dnl library, we cannot get the maximum address for brk.
3803 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3807 ]], [[]])], AC_DEFINE(ULIMIT_BREAK_VALUE, [(32*1024*1024)]), [])
3809 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3813 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
3814 [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)],
3815 [Mark a secondary stack, like the register stack on the ia64.]), [])
3819 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
3820 run_time_remap; for HPUX.])
3824 dnl Ulimit(UL_GMEMLIM) is busted...
3825 AC_DEFINE(ULIMIT_BREAK_VALUE, [0x14000000])
3830 dnl These won't be used automatically yet. We also need to know, at least,
3831 dnl that the stack is continuous.
3832 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
3833 registers relevant for conservative garbage collection in the jmp_buf.])
3835 AH_TEMPLATE(GC_MARK_STACK, [Define to GC_USE_GCPROS_AS_BEFORE if
3836 conservative garbage collection is not known to work.])
3840 aix4-2 | hpux* | unixware)
3841 dnl Conservative garbage collection has not been tested, so for now
3842 dnl play it safe and stick with the old-fashioned way of marking.
3843 AC_DEFINE(GC_MARK_STACK, [GC_USE_GCPROS_AS_BEFORE])
3846 dnl Not all the architectures are tested, but there are Debian packages
3847 dnl for SCM and/or Guile on them, so the technique must work. See also
3848 dnl comments in alloc.c concerning setjmp and gcc.
3849 dnl Fixme: it's probably safe to just use the GCC conditional below.
3850 gnu-linux | gnu-kfreebsd )
3851 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3852 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
3853 || defined __alpha__ || defined __mips__ || defined __s390__ \
3854 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
3855 || defined __ia64__ || defined __sh__
3858 # error "setjmp not known to work on this arch"
3860 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1),
3861 AC_DEFINE(GC_MARK_STACK, [GC_USE_GCPROS_AS_BEFORE]) )
3866 if test x$GCC = xyes; then
3867 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
3868 AC_DEFINE(GC_SETJMP_WORKS, 1)
3871 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
3872 freebsd | netbsd | openbsd | irix6-5 | sol2* )
3873 AC_DEFINE(GC_SETJMP_WORKS, 1)
3878 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
3881 [[#include <setjmp.h>
3885 _longjmp (j, 1);]])],
3886 [emacs_cv_func__setjmp=yes],
3887 [emacs_cv_func__setjmp=no])])
3888 if test $emacs_cv_func__setjmp = yes; then
3889 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
3891 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
3894 [[#include <setjmp.h>
3897 if (! sigsetjmp (j, 1))
3898 siglongjmp (j, 1);]])],
3899 [emacs_cv_func_sigsetjmp=yes],
3900 [emacs_cv_func_sigsetjmp=no])])
3901 if test $emacs_cv_func_sigsetjmp = yes; then
3902 AC_DEFINE([HAVE_SIGSETJMP], 1,
3903 [Define to 1 if sigsetjmp and siglongjmp work.
3904 The value of this symbol is irrelevant if HAVE__SETJMP is defined.])
3910 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
3911 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
3912 dnl and this is all we need.
3913 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
3920 dnl Used in xfaces.c.
3921 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
3922 some systems, where it requires time.h.])
3927 dnl Define symbols to identify the version of Unix this is.
3928 dnl Define all the symbols that apply correctly.
3929 AH_TEMPLATE(BSD4_2, [Define if the system is compatible with BSD 4.2.])
3930 AH_TEMPLATE(BSD_SYSTEM, [Define if the system is compatible with BSD 4.2.])
3931 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
3932 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
3933 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
3934 AH_TEMPLATE(USG5, [Define if the system is compatible with System V.])
3935 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
3941 dnl This symbol should be defined on AIX Version 3 ???????
3942 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3944 # error "_AIX not defined"
3946 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
3950 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
3954 dnl BSD4_3 and BSD4_4 are already defined in sys/param.h.
3955 AC_DEFINE(BSD4_2, [])
3956 AC_DEFINE(BSD_SYSTEM, [])
3957 dnl More specific than the above two. We cannot use __APPLE__ as this
3958 dnl may not be defined on non-OSX Darwin, and we cannot define DARWIN
3959 dnl here because Panther and lower CoreFoundation.h uses DARWIN to
3960 dnl distinguish OS X from pure Darwin.
3961 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
3965 AC_DEFINE(BSD4_2, [])
3966 dnl Hack to avoid calling AC_PREPROC_IFELSE multiple times.
3967 dnl Would not be needed with autoconf >= 2.67, where the
3968 dnl preprocessed output is accessible in "conftest.i".
3969 AC_DEFINE(BSD_SYSTEM_AHB, 1, [Define if AH_BOTTOM should change BSD_SYSTEM.])
3972 gnu | netbsd | openbsd )
3973 AC_DEFINE(BSD4_2, [])
3974 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3976 # error "BSD_SYSTEM not defined"
3978 ]], [[]])], [], AC_DEFINE(BSD_SYSTEM, 43) )
3981 gnu-linux | gnu-kfreebsd )
3983 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
3989 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
3995 AC_DEFINE(USG5_4, [])
3996 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4002 AC_DEFINE(USG5_4, [])
4003 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4009 AC_DEFINE(USG5_4, [])
4013 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4016 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4017 emacs_cv_usable_FIONREAD=no
4022 [AC_LANG_PROGRAM([[#include <sys/types.h>
4023 #include <sys/ioctl.h>
4025 # include <sys/filio.h>
4028 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4029 [emacs_cv_usable_FIONREAD=yes],
4030 [emacs_cv_usable_FIONREAD=no])
4033 if test $emacs_cv_usable_FIONREAD = yes; then
4034 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4036 if test $emacs_broken_SIGIO = no; then
4037 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4039 [AC_LANG_PROGRAM([[#include <fcntl.h>
4042 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4043 [emacs_cv_usable_SIGIO=yes],
4044 [emacs_cv_usable_SIGIO=no])],
4045 [emacs_cv_usable_SIGIO=yes],
4046 [emacs_cv_usable_SIGIO=no])
4047 if test $emacs_cv_usable_SIGIO = yes; then
4048 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4055 dnl Emacs supplies its own malloc, but glib (part of Gtk+) calls
4056 dnl memalign and on Cygwin, that becomes the Cygwin-supplied memalign.
4057 dnl As malloc is not the Cygwin malloc, the Cygwin memalign always
4058 dnl returns ENOSYS. A workaround is to set G_SLICE=always-malloc. */
4060 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
4061 G_SLICE environment variable to "always-malloc" at startup, if
4066 dnl It works to open the pty's tty in the parent (Emacs), then
4067 dnl close and reopen it in the child.
4068 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4069 works to open a pty's tty in the parent process, then close and
4070 reopen it in the child.])
4074 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4075 use VSUSP instead of VSWTCH.])
4076 AC_DEFINE(SETPGRP_RELEASES_CTTY, 1, [Define if process.c:child_setup
4077 should not call setpgrp.])
4081 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4086 # Set up the CFLAGS for real compilation, so we can substitute it.
4087 CFLAGS="$REAL_CFLAGS"
4088 CPPFLAGS="$REAL_CPPFLAGS"
4090 ## Hack to detect a buggy GCC version.
4091 if test "x$GCC" = xyes \
4092 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4093 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4094 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4095 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4098 version=$PACKAGE_VERSION
4100 copyright="Copyright (C) 2012 Free Software Foundation, Inc."
4101 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4102 [Short copyright string for this version of Emacs.])
4105 ### Specify what sort of things we'll be editing into Makefile and config.h.
4106 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4108 AC_SUBST(configuration)
4113 AC_SUBST(exec_prefix)
4116 AC_SUBST(sharedstatedir)
4117 AC_SUBST(libexecdir)
4122 AC_SUBST(standardlisppath)
4123 AC_SUBST(locallisppath)
4125 AC_SUBST(x_default_search_path)
4127 AC_SUBST(archlibdir)
4132 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4133 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4134 ## end of LIBX_BASE, but nothing ever set it.
4135 AC_SUBST(LD_SWITCH_X_SITE)
4136 AC_SUBST(C_SWITCH_X_SITE)
4137 AC_SUBST(GNUSTEP_CFLAGS)
4139 ## Used in lwlib/Makefile.in.
4140 AC_SUBST(X_TOOLKIT_TYPE)
4142 AC_SUBST(ns_appbindir)
4143 AC_SUBST(ns_appresdir)
4145 AC_SUBST(GNU_OBJC_CFLAGS)
4146 AC_SUBST(OTHER_FILES)
4148 if test -n "${term_header}"; then
4149 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4150 [Define to the header for the built-in window system.])
4153 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4154 [Define to the canonical Emacs configuration name.])
4155 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${ac_configure_args}",
4156 [Define to the options passed to configure.])
4157 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4158 define this to include extra configuration information.])
4163 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4164 AC_DEFINE(HAVE_X_WINDOWS, 1,
4165 [Define to 1 if you want to use the X window system.])
4167 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o xgselect.o"
4169 if test "$HAVE_XFT" = "yes"; then
4170 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4171 elif test "$HAVE_FREETYPE" = "yes"; then
4172 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4182 if test "${USE_X_TOOLKIT}" != "none" ; then
4184 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4185 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4186 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4187 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4188 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4192 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4193 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4197 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4198 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4199 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4203 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4204 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4207 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4210 AC_SUBST(WIDGET_OBJ)
4213 case "$USE_X_TOOLKIT" in
4214 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4215 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4216 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4218 AC_SUBST(TOOLKIT_LIBW)
4220 if test "$USE_X_TOOLKIT" = "none"; then
4221 LIBXT_OTHER="\$(LIBXSM)"
4222 OLDXMENU_TARGET="really-oldXMenu"
4224 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4225 OLDXMENU_TARGET="really-lwlib"
4227 AC_SUBST(LIBXT_OTHER)
4229 ## The X Menu stuff is present in the X10 distribution, but missing
4230 ## from X11. If we have X10, just use the installed library;
4231 ## otherwise, use our own copy.
4232 if test "${HAVE_X11}" = "yes" ; then
4233 AC_DEFINE(HAVE_X11, 1,
4234 [Define to 1 if you want to use version 11 of X windows.
4235 Otherwise, Emacs expects to use version 10.])
4237 if test "$USE_X_TOOLKIT" = "none"; then
4238 OLDXMENU="\${oldXMenudir}/libXMenu11.a"
4240 OLDXMENU="\${lwlibdir}/liblw.a"
4242 LIBXMENU="\$(OLDXMENU)"
4243 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4244 OLDXMENU_DEPS="\${OLDXMENU} ../src/\${OLDXMENU}"
4246 ## For a syntactically valid Makefile; not actually used for anything.
4247 ## See comments in src/Makefile.in.
4249 ## FIXME This case (!HAVE_X11 && HAVE_X_WINDOWS) is no longer possible(?).
4250 if test "${HAVE_X_WINDOWS}" = "yes"; then
4259 if test "$HAVE_GTK" = "yes" || test "$HAVE_MENUS" != "yes"; then
4266 AC_SUBST(OLDXMENU_TARGET)
4269 AC_SUBST(LIBX_OTHER)
4270 AC_SUBST(OLDXMENU_DEPS)
4272 if test "${HAVE_MENUS}" = "yes" ; then
4273 AC_DEFINE(HAVE_MENUS, 1,
4274 [Define to 1 if you have mouse menus.
4275 (This is automatic if you use X, but the option to specify it remains.)
4276 It is also defined with other window systems that support xmenu.c.])
4279 if test "${GNU_MALLOC}" = "yes" ; then
4280 AC_DEFINE(GNU_MALLOC, 1,
4281 [Define to 1 if you want to use the GNU memory allocator.])
4285 if test "${REL_ALLOC}" = "yes" ; then
4286 AC_DEFINE(REL_ALLOC, 1,
4287 [Define REL_ALLOC if you want to use the relocating allocator for
4290 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4292 AC_SUBST(RALLOC_OBJ)
4294 if test "$opsys" = "cygwin"; then
4295 CYGWIN_OBJ="sheap.o cygw32.o"
4296 ## Cygwin differs because of its unexec().
4298 POST_ALLOC_OBJ=lastfile.o
4301 PRE_ALLOC_OBJ=lastfile.o
4304 AC_SUBST(CYGWIN_OBJ)
4305 AC_SUBST(PRE_ALLOC_OBJ)
4306 AC_SUBST(POST_ALLOC_OBJ)
4308 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4309 # it temporarily reverts them to their pre-pkg-config values,
4310 # because gnulib needs to work with both src (which uses the
4311 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4312 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4313 # and it therefore needs to run in an environment where LIBS does not
4314 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4315 # for some package unrelated to lib-src.
4318 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4319 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4320 gl_ASSERT_NO_GNULIB_POSIXCHECK
4321 gl_ASSERT_NO_GNULIB_TESTS
4327 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4330 ## The -headerpad option tells ld (see man page) to leave room at the
4331 ## end of the header for adding load commands. Needed for dumping.
4332 ## 0x690 is the total size of 30 segment load commands (at 56
4333 ## each); under Cocoa 31 commands are required.
4334 if test "$HAVE_NS" = "yes"; then
4335 libs_nsgui="-framework AppKit"
4341 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4343 ## This is here because src/Makefile.in did some extra fiddling around
4344 ## with LD_SWITCH_SYSTEM. The cpp logic was:
4345 ## #ifndef LD_SWITCH_SYSTEM
4346 ## #if !defined (__GNUC__) && ((defined (BSD_SYSTEM) && !defined (COFF)))
4347 ## Since all the *bsds define LD_SWITCH_SYSTEM, this simplifies to:
4348 ## not using gcc, darwin.
4349 ## Because this was done in src/Makefile.in, the resulting part of
4350 ## LD_SWITCH_SYSTEM was not used in configure (ie, in ac_link).
4351 ## It therefore seems cleaner to put this in LD_SWITCH_SYSTEM_TEMACS,
4352 ## rather than LD_SWITCH_SYSTEM.
4353 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4354 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4357 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4358 ## find X at run-time.
4359 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4360 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4361 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4362 ## had different values in configure (in ac_link) and src/Makefile.in.
4363 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4364 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4366 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4369 if test "$NS_IMPL_GNUSTEP" = "yes"; then
4370 LD_SWITCH_SYSTEM_TEMACS="${LD_SWITCH_SYSTEM_TEMACS} -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES} -lgnustep-gui -lgnustep-base -lobjc -lpthread"
4373 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4379 ## gnu: GNU needs its own crt0.
4380 aix4-2|cygwin|darwin|gnu|hpux*|irix6-5|sol2*|unixware) ORDINARY_LINK=yes ;;
4382 ## On post 1.3 releases of NetBSD, gcc -nostdlib also clears the
4383 ## library search parth, i.e. it won't search /usr/lib for libc and
4384 ## friends. Using -nostartfiles instead avoids this problem, and
4385 ## will also work on earlier NetBSD releases.
4386 netbsd|openbsd) LD_FIRSTFLAG="-nostartfiles" ;;
4388 ## powerpc*: NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp> says
4389 ## MkLinux/LinuxPPC needs this.
4390 ## s390x-* only supports opsys = gnu-linux so it can be added here.
4392 case "$canonical" in
4393 powerpc*|s390x-*) LD_FIRSTFLAG="-nostdlib" ;;
4399 if test "x$ORDINARY_LINK" = "xyes"; then
4402 AC_DEFINE(ORDINARY_LINK, 1, [Define if the C compiler is the linker.])
4404 ## The system files defining neither ORDINARY_LINK nor LD_FIRSTFLAG are:
4405 ## freebsd, gnu-* not on powerpc*|s390x*.
4406 elif test "x$GCC" = "xyes" && test "x$LD_FIRSTFLAG" = "x"; then
4408 ## Versions of GCC >= 2.0 put their library, libgcc.a, in obscure
4409 ## places that are difficult to figure out at make time. Fortunately,
4410 ## these same versions allow you to pass arbitrary flags on to the
4411 ## linker, so there is no reason not to use it as a linker.
4413 ## Well, it is not quite perfect. The "-nostdlib" keeps GCC from
4414 ## searching for libraries in its internal directories, so we have to
4415 ## ask GCC explicitly where to find libgcc.a (LIB_GCC below).
4416 LD_FIRSTFLAG="-nostdlib"
4419 ## FIXME? What setting of EDIT_LDFLAGS should this have?
4420 test "$NS_IMPL_GNUSTEP" = "yes" && LD_FIRSTFLAG="-rdynamic"
4422 AC_SUBST(LD_FIRSTFLAG)
4425 ## FIXME? The logic here is not precisely the same as that above.
4426 ## There is no check here for a pre-defined LD_FIRSTFLAG.
4427 ## Should we only be setting LIB_GCC if LD ~ -nostdlib?
4429 if test "x$GCC" = "xyes" && test "x$ORDINARY_LINK" != "xyes"; then
4432 freebsd|netbsd|openbsd) LIB_GCC= ;;
4435 ## armin76@gentoo.org reported that the lgcc_s flag is necessary to
4436 ## build on ARM EABI under GNU/Linux. (Bug#5518)
4442 ## FIXME? s/gnu-linux.h used to define LIB_GCC as below, then
4443 ## immediately undefine it again and redefine it to empty.
4444 ## Was the C_SWITCH_X_SITE part really necessary?
4445 ## LIB_GCC=`$CC $C_SWITCH_X_SITE -print-libgcc-file-name`
4451 ## Ask GCC where to find libgcc.a.
4452 *) LIB_GCC=`$CC -print-libgcc-file-name 2> /dev/null` ;;
4457 ## Common for all window systems
4458 if test "$window_system" != "none"; then
4459 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4460 AC_DEFINE(HAVE_MOUSE, 1, [Define if you have mouse support.])
4461 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4464 AC_SUBST(WINDOW_SYSTEM_OBJ)
4466 AH_TOP([/* GNU Emacs site configuration template file.
4468 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2012
4469 Free Software Foundation, Inc.
4471 This file is part of GNU Emacs.
4473 GNU Emacs is free software: you can redistribute it and/or modify
4474 it under the terms of the GNU General Public License as published by
4475 the Free Software Foundation, either version 3 of the License, or
4476 (at your option) any later version.
4478 GNU Emacs is distributed in the hope that it will be useful,
4479 but WITHOUT ANY WARRANTY; without even the implied warranty of
4480 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4481 GNU General Public License for more details.
4483 You should have received a copy of the GNU General Public License
4484 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4487 /* No code in Emacs #includes config.h twice, but some bits of code
4488 intended to work with other packages as well (like gmalloc.c)
4489 think they can include it as many times as they like. */
4490 #ifndef EMACS_CONFIG_H
4491 #define EMACS_CONFIG_H
4494 AH_BOTTOM([#include <conf_post.h>
4496 #endif /* EMACS_CONFIG_H */
4505 #### Report on what we decided to do.
4506 #### Report GTK as a toolkit, even if it doesn't use Xt.
4507 #### It makes printing result more understandable as using GTK sets
4508 #### toolkit_scroll_bars to yes by default.
4509 if test "${HAVE_GTK}" = "yes"; then
4510 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
4514 Configured for \`${canonical}'.
4516 Where should the build process find the source code? ${srcdir}
4517 What compiler should emacs be built with? ${CC} ${CFLAGS}
4518 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4519 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4520 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4521 What window system should Emacs use? ${window_system}
4522 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4524 if test -n "${x_includes}"; then
4525 echo " Where do we find X Windows header files? ${x_includes}"
4527 echo " Where do we find X Windows header files? Standard dirs"
4529 if test -n "${x_libraries}"; then
4530 echo " Where do we find X Windows libraries? ${x_libraries}"
4532 echo " Where do we find X Windows libraries? Standard dirs"
4535 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4536 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4537 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4538 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4539 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4540 echo " Does Emacs use -lpng? ${HAVE_PNG}"
4541 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4542 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4544 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4545 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4546 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4547 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4548 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4549 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4550 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4552 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4553 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4554 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
4555 echo " Does Emacs use -lxft? ${HAVE_XFT}"
4557 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
4560 if test -n "${EMACSDATA}"; then
4561 echo " Environment variable EMACSDATA set to: $EMACSDATA"
4563 if test -n "${EMACSDOC}"; then
4564 echo " Environment variable EMACSDOC set to: $EMACSDOC"
4569 if test "$HAVE_NS" = "yes"; then
4571 echo "You must run \"${MAKE-make} install\" in order to test the built application.
4572 The installed application will go to nextstep/Emacs.app and can be
4573 run or moved from there."
4574 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
4575 echo "The application will be fully self-contained."
4577 echo "The lisp resources for the application will be installed under ${prefix}.
4578 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
4579 to run if these resources are not installed."
4584 if test "${opsys}" = "cygwin"; then
4586 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
4592 # Remove any trailing slashes in these variables.
4593 [test "${prefix}" != NONE &&
4594 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
4595 test "${exec_prefix}" != NONE &&
4596 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
4598 if test "$HAVE_NS" = "yes"; then
4599 if test "$NS_IMPL_GNUSTEP" = yes; then
4600 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
4601 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
4603 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
4604 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
4608 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
4609 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
4610 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
4611 dnl (else you get "no `Makefile.am' found for any configure output").
4612 dnl This will work, but you get a config.status that is not quite right
4613 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
4614 dnl That doesn't have any obvious consequences for Emacs, but on the whole
4615 dnl it seems better to just live with the duplication.
4616 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"
4618 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
4619 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
4620 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
4621 leim/Makefile nextstep/Makefile])
4623 dnl test/ is not present in release tarfiles.
4624 opt_makefile=test/automated/Makefile
4626 if test -f $srcdir/${opt_makefile}.in; then
4627 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4628 dnl Again, it's best not to use a variable. Though you can add
4629 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
4630 AC_CONFIG_FILES([test/automated/Makefile])
4634 dnl admin/ may or may not be present.
4635 opt_makefile=admin/unidata/Makefile
4637 if test -f $srcdir/${opt_makefile}.in; then
4638 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4639 AC_CONFIG_FILES([admin/unidata/Makefile])
4643 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
4645 AC_SUBST(SUBDIR_MAKEFILES_IN)
4647 dnl Make the necessary directories, if they don't exist.
4648 AC_CONFIG_COMMANDS([mkdirs], [
4649 for dir in etc lisp ; do
4650 test -d ${dir} || mkdir ${dir}
4654 dnl You might wonder (I did) why epaths.h is generated by running make,
4655 dnl rather than just letting configure generate it from epaths.in.
4656 dnl One reason is that the various paths are not fully expanded (see above);
4657 dnl eg gamedir=${prefix}/var/games/emacs.
4658 dnl Secondly, the GNU Coding standards require that one should be able
4659 dnl to run `make prefix=/some/where/else' and override the values set
4660 dnl by configure. This also explains the `move-if-change' test and
4661 dnl the use of force in the `epaths-force' rule in Makefile.in.
4662 AC_CONFIG_COMMANDS([epaths], [
4663 echo creating src/epaths.h
4664 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
4665 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS"])
4667 AC_CONFIG_COMMANDS([gdbinit], [
4668 if test ! -f src/.gdbinit && test -f $srcdir/src/.gdbinit; then
4669 echo creating src/.gdbinit
4670 echo source $srcdir/src/.gdbinit > src/.gdbinit