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 $srcdir/info/emacs; then
818 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
819 source tree does not seem to have pre-built manuals in the `info' directory.
820 Either install a suitable version of makeinfo, or re-run configure
821 with the `--without-makeinfo' option to build without the manuals.] )
824 AC_SUBST(HAVE_MAKEINFO)
826 dnl Just so that there is only a single place we need to edit.
832 dnl Add our options to ac_link now, after it is set up.
834 if test x$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)
1587 if test "${with_w32}" != no; then
1588 if test "${opsys}" != "cygwin"; then
1589 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin.])
1591 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1592 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1593 cannot be found.])])
1594 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1595 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1596 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1597 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1598 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1603 if test "${HAVE_W32}" = "yes"; then
1608 ## $window_system is now set to the window system we will
1616 case "${window_system}" in
1621 case "${with_x_toolkit}" in
1622 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1623 motif ) USE_X_TOOLKIT=MOTIF ;;
1625 term_header=gtkutil.h
1626 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1627 dnl USE_X_TOOLKIT is set.
1628 USE_X_TOOLKIT=none ;;
1629 gtk2 ) with_gtk2=yes
1630 term_header=gtkutil.h
1631 USE_X_TOOLKIT=none ;;
1632 gtk3 ) with_gtk3=yes
1633 term_header=gtkutil.h
1634 USE_X_TOOLKIT=none ;;
1635 no ) USE_X_TOOLKIT=none ;;
1636 dnl If user did not say whether to use a toolkit, make this decision later:
1637 dnl use the toolkit if we have gtk, or X11R5 or newer.
1638 * ) USE_X_TOOLKIT=maybe ;;
1642 term_header=nsterm.h
1645 term_header=w32term.h
1649 if test -n "${term_header}"; then
1650 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
1651 [Define to the header for the built-in window system.])
1654 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1655 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1656 if test "$HAVE_XSERVER" = true ||
1657 test -n "$DISPLAY" ||
1658 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1659 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1660 were found. You should install the relevant development files for X
1661 and for the toolkit you want, such as Gtk+, Lesstif or Motif. Also make
1662 sure you have development files for image handling, i.e.
1663 tiff, gif, jpeg, png and xpm.
1664 If you are sure you want Emacs compiled without X window support, pass
1670 ### If we're using X11, we should use the X menu package.
1673 yes ) HAVE_MENUS=yes ;;
1676 # Does the opsystem file prohibit the use of the GNU malloc?
1677 # Assume not, until told otherwise.
1681 [whether malloc is Doug Lea style],
1682 [emacs_cv_var_doug_lea_malloc],
1685 [[#include <malloc.h>
1686 static void hook (void) {}]],
1687 [[malloc_set_state (malloc_get_state ());
1688 __after_morecore_hook = hook;
1689 __malloc_initialize_hook = hook;]])],
1690 [emacs_cv_var_doug_lea_malloc=yes],
1691 [emacs_cv_var_doug_lea_malloc=no])])
1692 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1695 dnl See comments in aix4-2.h about maybe using system malloc there.
1698 ## darwin ld insists on the use of malloc routines in the System framework.
1699 darwin|sol2-10) system_malloc=yes ;;
1702 if test "${system_malloc}" = "yes"; then
1703 AC_DEFINE(SYSTEM_MALLOC, 1, [Define to use system malloc.])
1706 (The GNU allocators don't work with this system configuration.)"
1710 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1711 VMLIMIT_OBJ=vm-limit.o
1713 AC_SUBST(GMALLOC_OBJ)
1714 AC_SUBST(VMLIMIT_OBJ)
1716 if test "$doug_lea_malloc" = "yes" ; then
1717 if test "$GNU_MALLOC" = yes ; then
1719 (Using Doug Lea's new malloc from the GNU C Library.)"
1721 AC_DEFINE(DOUG_LEA_MALLOC, 1,
1722 [Define to 1 if you are using the GNU C Library.])
1724 ## Use mmap directly for allocating larger buffers.
1725 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
1726 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
1727 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
1729 gnu*) REL_ALLOC=no ;;
1733 if test x"${REL_ALLOC}" = x; then
1734 REL_ALLOC=${GNU_MALLOC}
1737 use_mmap_for_buffers=no
1739 cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
1743 if test $use_mmap_for_buffers = yes; then
1744 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
1748 LIBS="$LIBS_SYSTEM $LIBS"
1750 dnl If found, this defines HAVE_LIBDNET, which m/pmax.h checks,
1751 dnl and also adds -ldnet to LIBS, which Autoconf uses for checks.
1752 AC_CHECK_LIB(dnet, dnet_ntoa)
1753 dnl This causes -lresolv to get used in subsequent tests,
1754 dnl which causes failures on some systems such as HPUX 9.
1755 dnl AC_CHECK_LIB(resolv, gethostbyname)
1757 dnl FIXME replace main with a function we actually want from this library.
1758 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
1760 dnl Check if pthreads is available.
1762 AC_CHECK_HEADERS_ONCE(pthread.h)
1763 if test "$ac_cv_header_pthread_h"; then
1764 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
1765 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
1766 dnl testing for pthread_self if Emacs uses gmalloc.c.
1767 if test "$GMALLOC_OBJ" = gmalloc.o; then
1768 emacs_pthread_function=pthread_atfork
1770 emacs_pthread_function=pthread_self
1772 AC_CHECK_LIB(pthread, $emacs_pthread_function, HAVE_PTHREAD=yes)
1774 if test "$HAVE_PTHREAD" = yes; then
1775 case "${canonical}" in
1777 *) LIB_PTHREAD="-lpthread"
1778 LIBS="$LIB_PTHREAD $LIBS" ;;
1780 AC_DEFINE(HAVE_PTHREAD, 1, [Define to 1 if you have pthread (-lpthread).])
1782 AC_SUBST([LIB_PTHREAD])
1784 AC_CHECK_LIB(pthreads, cma_open)
1786 ## Note: when using cpp in s/aix4.2.h, this definition depended on
1787 ## HAVE_LIBPTHREADS. That was not defined earlier in configure when
1788 ## the system file was sourced. Hence the value of LIBS_SYSTEM
1789 ## added to LIBS in configure would never contain the pthreads part,
1790 ## but the value used in Makefiles might. FIXME?
1792 ## -lpthreads seems to be necessary for Xlib in X11R6, and should
1793 ## be harmless on older versions of X where it happens to exist.
1794 test "$opsys" = "aix4-2" && \
1795 test $ac_cv_lib_pthreads_cma_open = yes && \
1796 LIBS_SYSTEM="$LIBS_SYSTEM -lpthreads"
1798 dnl Check for need for bigtoc support on IBM AIX
1802 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1804 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1805 *) gdb_cv_bigtoc=-bbigtoc ;;
1808 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1809 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
1814 # Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
1815 # used for the tests that follow. We set them back to REAL_CFLAGS and
1816 # REAL_CPPFLAGS later on.
1818 REAL_CFLAGS="$CFLAGS"
1819 REAL_CPPFLAGS="$CPPFLAGS"
1821 if test "${HAVE_X11}" = "yes"; then
1822 DEFS="$C_SWITCH_X_SITE $DEFS"
1823 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
1825 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
1826 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
1828 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
1829 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
1830 # but it's more convenient here to set LD_RUN_PATH since this
1831 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
1832 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
1833 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
1837 if test "${opsys}" = "gnu-linux"; then
1838 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
1839 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1840 [[XOpenDisplay ("foo");]])],
1841 [xgnu_linux_first_failure=no],
1842 [xgnu_linux_first_failure=yes])
1843 if test "${xgnu_linux_first_failure}" = "yes"; then
1844 OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
1845 OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
1846 OLD_CPPFLAGS="$CPPFLAGS"
1848 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
1849 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
1850 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
1851 LIBS="$LIBS -b i486-linuxaout"
1852 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1853 [[XOpenDisplay ("foo");]])],
1854 [xgnu_linux_second_failure=no],
1855 [xgnu_linux_second_failure=yes])
1856 if test "${xgnu_linux_second_failure}" = "yes"; then
1857 # If we get the same failure with -b, there is no use adding -b.
1858 # So take it out. This plays safe.
1859 LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
1860 C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
1861 CPPFLAGS="$OLD_CPPFLAGS"
1872 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
1873 # header files included from there.
1874 AC_MSG_CHECKING(for Xkb)
1875 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
1876 #include <X11/XKBlib.h>]],
1877 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
1878 emacs_xkb=yes, emacs_xkb=no)
1879 AC_MSG_RESULT($emacs_xkb)
1880 if test $emacs_xkb = yes; then
1881 AC_DEFINE(HAVE_XKBGETKEYBOARD, 1, [Define to 1 if you have the XkbGetKeyboard function.])
1884 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
1885 XScreenNumberOfScreen)
1888 if test "${window_system}" = "x11"; then
1889 AC_MSG_CHECKING(X11 version 6)
1890 AC_CACHE_VAL(emacs_cv_x11_version_6,
1891 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
1892 [[#if XlibSpecificationRelease < 6
1895 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
1896 if test $emacs_cv_x11_version_6 = yes; then
1897 AC_MSG_RESULT(6 or newer)
1898 AC_DEFINE(HAVE_X11R6, 1,
1899 [Define to 1 if you have the X11R6 or newer version of Xlib.])
1900 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
1901 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
1905 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
1906 [Define if you have usable X11R6-style XIM support.])
1910 AC_MSG_RESULT(before 6)
1915 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
1917 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes"; then
1918 if test "${with_rsvg}" != "no"; then
1919 RSVG_REQUIRED=2.11.0
1920 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
1922 PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, HAVE_RSVG=yes, :)
1923 AC_SUBST(RSVG_CFLAGS)
1926 if test $HAVE_RSVG = yes; then
1927 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
1928 CFLAGS="$CFLAGS $RSVG_CFLAGS"
1929 LIBS="$RSVG_LIBS $LIBS"
1935 if test "${HAVE_X11}" = "yes"; then
1936 if test "${with_imagemagick}" != "no"; then
1937 ## 6.2.8 is the earliest version known to work, but earlier versions
1938 ## might work - let us know if you find one.
1939 ## 6.0.7 does not work. See bug#7955.
1940 IMAGEMAGICK_MODULE="Wand >= 6.2.8"
1941 PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
1942 AC_SUBST(IMAGEMAGICK_CFLAGS)
1943 AC_SUBST(IMAGEMAGICK_LIBS)
1945 if test $HAVE_IMAGEMAGICK = yes; then
1946 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
1947 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
1948 LIBS="$IMAGEMAGICK_LIBS $LIBS"
1949 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
1959 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
1962 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1964 dnl Checks for libraries.
1965 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1966 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
1967 AC_MSG_ERROR($GTK_PKG_ERRORS)
1969 if test "$pkg_check_gtk" = "yes"; then
1970 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
1971 GTK_OBJ=emacsgtkfixed.o
1972 term_header=gtkutil.h
1973 USE_GTK_TOOLKIT="GTK3"
1976 gtk3_pkg_errors="$GTK_PKG_ERRORS "
1980 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
1983 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1985 dnl Checks for libraries.
1986 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1987 if test "$pkg_check_gtk" = "no" &&
1988 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
1990 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
1992 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
1995 if test x"$pkg_check_gtk" = xyes; then
1997 AC_SUBST(GTK_CFLAGS)
1999 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2000 CFLAGS="$CFLAGS $GTK_CFLAGS"
2001 LIBS="$GTK_LIBS $LIBS"
2002 dnl Try to compile a simple GTK program.
2004 AC_CHECK_FUNCS(gtk_main, GTK_COMPILES=yes)
2005 if test "${GTK_COMPILES}" != "yes"; then
2006 if test "$USE_X_TOOLKIT" != "maybe"; then
2007 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2011 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2012 GTK_OBJ="gtkutil.o $GTK_OBJ"
2014 if $PKG_CONFIG --atleast-version=2.10 gtk+-2.0; then
2017 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2018 closing open displays. This is no problem if you just use
2019 one display, but if you use more than one and close one of them
2029 if test "${HAVE_GTK}" = "yes"; then
2031 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2032 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2033 if test "$with_toolkit_scroll_bars" != no; then
2034 with_toolkit_scroll_bars=yes
2037 dnl Check if we have the old file selection dialog declared and
2038 dnl in the link library. In 2.x it may be in the library,
2039 dnl but not declared if deprecated featured has been selected out.
2040 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2041 HAVE_GTK_FILE_SELECTION=no
2042 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2043 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2044 #include <gtk/gtk.h>])
2045 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2046 AC_CHECK_FUNCS(gtk_file_selection_new)
2050 dnl Check for functions introduced in 2.14 and later.
2051 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2052 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2053 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2054 gtk_orientable_set_orientation \
2055 gtk_window_set_has_resize_grip)
2057 term_header=gtkutil.h
2060 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2061 dnl other platforms.
2064 if test "${with_dbus}" = "yes"; then
2065 PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
2066 if test "$HAVE_DBUS" = yes; then
2067 LIBS="$LIBS $DBUS_LIBS"
2068 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2069 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2070 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2072 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2073 dbus_type_is_valid \
2074 dbus_validate_bus_name \
2075 dbus_validate_path \
2076 dbus_validate_interface \
2077 dbus_validate_member)
2083 dnl GSettings has been tested under GNU/Linux only.
2085 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2086 PKG_CHECK_MODULES(GSETTINGS, gio-2.0 >= 2.26, HAVE_GSETTINGS=yes, HAVE_GSETTINGS=no)
2087 if test "$HAVE_GSETTINGS" = "yes"; then
2088 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2089 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2090 SETTINGS_LIBS="$GSETTINGS_LIBS"
2094 dnl GConf has been tested under GNU/Linux only.
2095 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2097 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2098 PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
2099 if test "$HAVE_GCONF" = yes; then
2100 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2101 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2102 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2103 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2107 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2108 PKG_CHECK_MODULES(GOBJECT, gobject-2.0 >= 2.0, HAVE_GOBJECT=yes, HAVE_GOBJECT=no)
2109 if test "$HAVE_GOBJECT" = "yes"; then
2110 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2111 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2113 SAVE_CFLAGS="$CFLAGS"
2115 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2116 LIBS="$SETTINGS_LIBS $LIBS"
2117 AC_CHECK_FUNCS([g_type_init])
2118 CFLAGS="$SAVE_CFLAGS"
2121 AC_SUBST(SETTINGS_CFLAGS)
2122 AC_SUBST(SETTINGS_LIBS)
2125 dnl SELinux is available for GNU/Linux only.
2128 if test "${with_selinux}" = "yes"; then
2129 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2130 if test "$HAVE_LIBSELINUX" = yes; then
2131 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2132 LIBSELINUX_LIBS=-lselinux
2135 AC_SUBST(LIBSELINUX_LIBS)
2138 HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=no
2139 if test "${with_gnutls}" = "yes" ; then
2140 PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6], HAVE_GNUTLS=yes, HAVE_GNUTLS=no)
2141 if test "${HAVE_GNUTLS}" = "yes"; then
2142 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2145 CFLAGS="$CFLAGS $LIBGNUTLS_CFLAGS"
2146 LIBS="$LIBGNUTLS_LIBS $LIBS"
2147 AC_CHECK_FUNCS(gnutls_certificate_set_verify_function, HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=yes)
2149 if test "${HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY}" = "yes"; then
2150 AC_DEFINE(HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY, 1, [Define if using GnuTLS certificate verification callbacks.])
2154 AC_SUBST(LIBGNUTLS_LIBS)
2155 AC_SUBST(LIBGNUTLS_CFLAGS)
2157 dnl Do not put whitespace before the #include statements below.
2158 dnl Older compilers (eg sunos4 cc) choke on it.
2161 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2162 if test "$with_xaw3d" != no; then
2163 AC_CACHE_VAL(emacs_cv_xaw3d,
2164 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2165 #include <X11/Intrinsic.h>
2166 #include <X11/Xaw3d/Simple.h>]],
2168 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2169 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2170 emacs_cv_xaw3d=no)])
2174 if test $emacs_cv_xaw3d = yes; then
2175 AC_MSG_CHECKING(for xaw3d)
2176 AC_MSG_RESULT([yes; using Lucid toolkit])
2180 AC_DEFINE(HAVE_XAW3D, 1,
2181 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2183 AC_MSG_CHECKING(for xaw3d)
2185 AC_MSG_CHECKING(for libXaw)
2186 AC_CACHE_VAL(emacs_cv_xaw,
2187 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2188 #include <X11/Intrinsic.h>
2189 #include <X11/Xaw/Simple.h>]],
2193 if test $emacs_cv_xaw = yes; then
2194 AC_MSG_RESULT([yes; using Lucid toolkit])
2197 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2198 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2200 AC_MSG_ERROR([No X toolkit could be found.
2201 If you are sure you want Emacs compiled without an X toolkit, pass
2203 to configure. Otherwise, install the development libraries for the toolkit
2204 that you want to use (e.g. Gtk+) and re-run configure.])
2209 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2212 if test "${USE_X_TOOLKIT}" != "none"; then
2213 AC_MSG_CHECKING(X11 toolkit version)
2214 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2215 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2216 [[#if XtSpecificationRelease < 6
2219 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2220 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2221 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2222 AC_MSG_RESULT(6 or newer)
2223 AC_DEFINE(HAVE_X11XTR6, 1,
2224 [Define to 1 if you have the X11R6 or newer version of Xt.])
2225 LIBXTR6="-lSM -lICE"
2227 ## Use libw.a along with X11R6 Xt.
2228 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2231 AC_MSG_RESULT(before 6)
2234 dnl If using toolkit, check whether libXmu.a exists.
2235 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2237 if test x$HAVE_X11XTR6 = xyes; then
2238 LIBS="-lXt -lSM -lICE $LIBS"
2242 AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
2243 test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
2244 dnl ac_cv_lib_Xmu_XmuConvertStandardSelection is also referenced below.
2248 dnl FIXME the logic here seems weird, but this is what cpp was doing.
2249 dnl Why not just test for libxmu in the normal way?
2252 ## These systems don't supply Xmu.
2254 test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
2259 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
2260 if test "${HAVE_X11}" = "yes"; then
2261 if test "${USE_X_TOOLKIT}" != "none"; then
2262 AC_CHECK_LIB(Xext, XShapeQueryExtension)
2267 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2268 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2269 if test -d /usr/include/openmotif; then
2270 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2271 emacs_cv_openmotif=yes
2272 case "$canonical" in
2273 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2274 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2277 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2280 emacs_cv_openmotif=no
2282 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2283 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2284 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2287 Motif version prior to 2.1.
2289 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2290 if test $emacs_cv_motif_version_2_1 = yes; then
2291 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2292 if test x$emacs_cv_openmotif = xyes; then
2293 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2296 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2297 # We put this in CFLAGS temporarily to precede other -I options
2298 # that might be in CFLAGS temporarily.
2299 # We put this in CPPFLAGS where it precedes the other -I options.
2300 OLD_CPPFLAGS=$CPPFLAGS
2302 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2303 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2304 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2306 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2307 if test $emacs_cv_lesstif = yes; then
2308 # Make sure this -I option remains in CPPFLAGS after it is set
2309 # back to REAL_CPPFLAGS.
2310 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2311 # have those other -I options anyway. Ultimately, having this
2312 # directory ultimately in CPPFLAGS will be enough.
2313 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2314 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2317 CPPFLAGS=$OLD_CPPFLAGS
2320 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2321 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2324 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2325 dnl using Motif or Xaw3d is available, and unless
2326 dnl --with-toolkit-scroll-bars=no was specified.
2328 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2329 [Define to 1 if we should use toolkit scroll bars.])dnl
2330 USE_TOOLKIT_SCROLL_BARS=no
2331 if test "${with_toolkit_scroll_bars}" != "no"; then
2332 if test "${USE_X_TOOLKIT}" != "none"; then
2333 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2334 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2336 USE_TOOLKIT_SCROLL_BARS=yes
2337 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2338 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2339 USE_TOOLKIT_SCROLL_BARS=yes
2341 elif test "${HAVE_GTK}" = "yes"; then
2342 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2343 USE_TOOLKIT_SCROLL_BARS=yes
2344 elif test "${HAVE_NS}" = "yes"; then
2345 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2346 USE_TOOLKIT_SCROLL_BARS=yes
2347 elif test "${HAVE_W32}" = "yes"; then
2348 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2349 USE_TOOLKIT_SCROLL_BARS=yes
2353 dnl See if XIM is available.
2354 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2355 #include <X11/Xlib.h>
2356 #include <X11/Xresource.h>]],
2357 [[XIMProc callback;]])],
2359 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2362 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2364 if test "${with_xim}" != "no"; then
2365 AC_DEFINE(USE_XIM, 1,
2366 [Define to 1 if we should use XIM, if it is available.])
2370 if test "${HAVE_XIM}" != "no"; then
2372 if test "$GCC" = yes; then
2373 CFLAGS="$CFLAGS --pedantic-errors"
2375 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2376 #include <X11/Xlib.h>
2377 #include <X11/Xresource.h>]],
2383 XPointer *client_data;
2385 /* If we're not using GCC, it's probably not XFree86, and this is
2386 probably right, but we can't use something like --pedantic-errors. */
2387 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2388 char*, XIMProc, XPointer*);
2390 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2392 [emacs_cv_arg6_star=yes])
2393 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2394 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2395 either XPointer or XPointer*.])dnl
2396 if test "$emacs_cv_arg6_star" = yes; then
2397 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2399 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2404 ### Start of font-backend (under any platform) section.
2405 # (nothing here yet -- this is a placeholder)
2406 ### End of font-backend (under any platform) section.
2408 ### Start of font-backend (under X11) section.
2409 if test "${HAVE_X11}" = "yes"; then
2410 PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
2412 ## Use -lXft if available, unless `--with-xft=no'.
2414 if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2417 if test "x${with_xft}" != "xno"; then
2419 PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
2420 ## Because xftfont.c uses XRenderQueryExtension, we also
2421 ## need to link to -lXrender.
2423 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2424 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2425 OLD_CPPFLAGS="$CPPFLAGS"
2426 OLD_CFLAGS="$CFLAGS"
2428 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2429 CFLAGS="$CFLAGS $XFT_CFLAGS"
2430 XFT_LIBS="-lXrender $XFT_LIBS"
2431 LIBS="$XFT_LIBS $LIBS"
2432 AC_CHECK_HEADER(X11/Xft/Xft.h,
2433 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS))
2435 if test "${HAVE_XFT}" = "yes"; then
2436 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2438 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2440 CPPFLAGS="$OLD_CPPFLAGS"
2441 CFLAGS="$OLD_CFLAGS"
2443 fi # "${HAVE_XFT}" = "yes"
2444 fi # "$HAVE_XFT" != no
2445 fi # "x${with_xft}" != "xno"
2447 ## We used to allow building with FreeType and without Xft.
2448 ## However, the ftx font backend driver is not in good shape.
2449 if test "$HAVE_XFT" != "yes"; then
2450 dnl For the "Does Emacs use" message at the end.
2454 dnl Strict linkers fail with
2455 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2456 dnl if -lfreetype is not specified.
2457 dnl The following is needed to set FREETYPE_LIBS.
2458 PKG_CHECK_MODULES(FREETYPE, freetype2, HAVE_FREETYPE=yes,
2461 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2465 if test "${HAVE_FREETYPE}" = "yes"; then
2466 AC_DEFINE(HAVE_FREETYPE, 1,
2467 [Define to 1 if using the freetype and fontconfig libraries.])
2468 if test "${with_libotf}" != "no"; then
2469 PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
2471 if test "$HAVE_LIBOTF" = "yes"; then
2472 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2473 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2474 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2475 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2476 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2477 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2478 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2482 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2483 dnl Does the new font backend require it, or can it work without it?
2487 if test "${HAVE_LIBOTF}" = yes; then
2488 if test "${with_m17n_flt}" != "no"; then
2489 PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
2490 if test "$HAVE_M17N_FLT" = "yes"; then
2491 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2502 ### End of font-backend (under X11) section.
2504 AC_SUBST(FREETYPE_CFLAGS)
2505 AC_SUBST(FREETYPE_LIBS)
2506 AC_SUBST(FONTCONFIG_CFLAGS)
2507 AC_SUBST(FONTCONFIG_LIBS)
2508 AC_SUBST(LIBOTF_CFLAGS)
2509 AC_SUBST(LIBOTF_LIBS)
2510 AC_SUBST(M17N_FLT_CFLAGS)
2511 AC_SUBST(M17N_FLT_LIBS)
2513 ### Use -lXpm if available, unless `--with-xpm=no'.
2517 if test "${HAVE_W32}" = "yes"; then
2518 if test "${with_xpm}" != "no"; then
2519 SAVE_CPPFLAGS="$CPPFLAGS"
2520 SAVE_LDFLAGS="$LDFLAGS"
2521 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
2522 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
2523 AC_CHECK_HEADER(X11/xpm.h,
2524 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
2525 if test "${HAVE_XPM}" = "yes"; then
2526 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2527 AC_EGREP_CPP(no_return_alloc_pixels,
2528 [#include "X11/xpm.h"
2529 #ifndef XpmReturnAllocPixels
2530 no_return_alloc_pixels
2532 ], HAVE_XPM=no, HAVE_XPM=yes)
2534 if test "${HAVE_XPM}" = "yes"; then
2535 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
2539 CPPFLAGS="$SAVE_CPPFLAGS"
2540 LDFLAGS="$SAVE_LDFLAGS"
2545 if test "${HAVE_XPM}" = "yes"; then
2546 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2551 if test "${HAVE_X11}" = "yes"; then
2552 if test "${with_xpm}" != "no"; then
2553 AC_CHECK_HEADER(X11/xpm.h,
2554 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2555 if test "${HAVE_XPM}" = "yes"; then
2556 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2557 AC_EGREP_CPP(no_return_alloc_pixels,
2558 [#include "X11/xpm.h"
2559 #ifndef XpmReturnAllocPixels
2560 no_return_alloc_pixels
2562 ], HAVE_XPM=no, HAVE_XPM=yes)
2564 if test "${HAVE_XPM}" = "yes"; then
2572 if test "${HAVE_XPM}" = "yes"; then
2573 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2580 ### Use -ljpeg if available, unless `--with-jpeg=no'.
2583 if test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2584 if test "${with_jpeg}" != "no"; then
2585 dnl Checking for jpeglib.h can lose because of a redefinition of
2587 AC_CHECK_HEADER(jerror.h,
2588 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
2591 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2592 if test "${HAVE_JPEG}" = "yes"; then
2593 AC_DEFINE(HAVE_JPEG)
2594 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2595 [#include <jpeglib.h>
2596 version=JPEG_LIB_VERSION
2598 [AC_DEFINE(HAVE_JPEG)],
2599 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2602 if test "${HAVE_JPEG}" = "yes"; then
2608 ### Use -lpng if available, unless `--with-png=no'.
2611 if test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2612 if test "${with_png}" != "no"; then
2613 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
2614 # in /usr/include/libpng.
2615 AC_CHECK_HEADERS(png.h libpng/png.h, break)
2616 if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
2617 AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
2621 if test "${HAVE_PNG}" = "yes"; then
2622 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2623 LIBPNG="-lpng -lz -lm"
2625 AC_CHECK_DECL(png_longjmp,
2627 [AC_DEFINE(PNG_DEPSTRUCT, [],
2628 [Define to empty to suppress deprecation warnings when building
2629 with --enable-gcc-warnings and with libpng versions before 1.5,
2630 which lack png_longjmp.])],
2631 [[#ifdef HAVE_LIBPNG_PNG_H
2632 # include <libpng/png.h>
2641 ### Use -ltiff if available, unless `--with-tiff=no'.
2644 if test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2645 if test "${with_tiff}" != "no"; then
2646 AC_CHECK_HEADER(tiffio.h,
2648 # At least one tiff package requires the jpeg library.
2649 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
2650 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
2653 if test "${HAVE_TIFF}" = "yes"; then
2654 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
2655 dnl FIXME -lz -lm, as per libpng?
2661 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
2664 if test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
2665 || test "${HAVE_W32}" = "yes"; then
2666 AC_CHECK_HEADER(gif_lib.h,
2667 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
2668 # Earlier versions can crash Emacs.
2669 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])
2671 if test "$HAVE_GIF" = yes; then
2673 elif test "$HAVE_GIF" = maybe; then
2674 # If gif_lib.h but no libgif, try libungif.
2675 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
2676 test "$HAVE_GIF" = yes && LIBGIF=-lungif
2679 if test "${HAVE_GIF}" = "yes"; then
2680 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
2685 dnl Check for required libraries.
2686 if test "${HAVE_X11}" = "yes"; then
2689 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
2690 MISSING="libXpm" && WITH_NO="--with-xpm=no"
2691 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
2692 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
2693 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
2694 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
2695 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
2696 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
2697 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
2698 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
2700 if test "X${MISSING}" != X; then
2701 AC_MSG_ERROR([The following required libraries were not found:
2703 Maybe some development libraries/packages are missing?
2704 If you don't want to link with them give
2706 as options to configure])
2710 ### Use -lgpm if available, unless `--with-gpm=no'.
2713 if test "${with_gpm}" != "no"; then
2714 AC_CHECK_HEADER(gpm.h,
2715 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
2717 if test "${HAVE_GPM}" = "yes"; then
2718 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
2724 dnl Check for malloc/malloc.h on darwin
2725 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
2728 ### Use NeXTstep API to implement GUI.
2729 if test "${HAVE_NS}" = "yes"; then
2730 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
2731 if test "${NS_IMPL_COCOA}" = "yes"; then
2732 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
2734 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
2735 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
2736 # See also .m.o rule in Makefile.in */
2737 # FIXME: are all these flags really needed? Document here why. */
2738 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
2739 ## Extra CFLAGS applied to src/*.m files.
2740 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"
2742 # We also have mouse menus.
2747 if test "${HAVE_W32}" = "yes"; then
2751 ### Use session management (-lSM -lICE) if available
2754 if test "${HAVE_X11}" = "yes"; then
2755 AC_CHECK_HEADER(X11/SM/SMlib.h,
2756 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
2758 if test "${HAVE_X_SM}" = "yes"; then
2759 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
2763 *) LIBS="$LIBXSM $LIBS" ;;
2769 ### Use libxml (-lxml2) if available
2771 if test "${with_xml2}" != "no"; then
2772 ### I'm not sure what the version number should be, so I just guessed.
2773 PKG_CHECK_MODULES(LIBXML2, libxml-2.0 > 2.6.17, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2774 if test "${HAVE_LIBXML2}" = "yes"; then
2775 LIBS="$LIBXML2_LIBS $LIBS"
2776 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2777 if test "${HAVE_LIBXML2}" = "yes"; then
2778 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
2785 AC_SUBST(LIBXML2_LIBS)
2786 AC_SUBST(LIBXML2_CFLAGS)
2788 # If netdb.h doesn't declare h_errno, we must declare it by hand.
2789 AC_CACHE_CHECK(whether netdb declares h_errno,
2790 emacs_cv_netdb_declares_h_errno,
2791 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
2792 [[return h_errno;]])],
2793 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
2794 if test $emacs_cv_netdb_declares_h_errno = yes; then
2795 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
2798 # sqrt and other floating-point functions such as fmod and frexp
2799 # are found in -lm on most systems.
2800 AC_CHECK_LIB(m, sqrt)
2802 # Check for mail-locking functions in a "mail" library. Probably this should
2803 # have the same check as for liblockfile below.
2804 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
2805 if test $have_mail = yes; then
2807 LIBS="$LIBS_MAIL $LIBS"
2808 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
2812 dnl Debian, at least:
2813 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
2814 if test $have_lockfile = yes; then
2815 LIBS_MAIL=-llockfile
2816 LIBS="$LIBS_MAIL $LIBS"
2817 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
2819 # If we have the shared liblockfile, assume we must use it for mail
2820 # locking (e.g. Debian). If we couldn't link against liblockfile
2821 # (no liblockfile.a installed), ensure that we don't need to.
2822 dnl This works for files generally, not just executables.
2823 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
2824 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
2825 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
2826 if test $ac_cv_prog_liblockfile = yes; then
2827 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
2828 This probably means that movemail could lose mail.
2829 There may be a `development' package to install containing liblockfile.])
2832 AC_CHECK_HEADERS_ONCE(maillock.h)
2835 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
2836 ## interlock access to the mail spool. The alternative is a lock file named
2837 ## /usr/spool/mail/$USER.lock.
2840 aix4-2) mail_lock="lockf" ;;
2842 gnu|freebsd|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
2844 ## On GNU/Linux systems, both methods are used by various mail programs.
2845 ## I assume most people are using newer mailers that have heard of flock.
2846 ## Change this if you need to.
2847 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
2848 ## configure gets the right answers, and that means *NOT* using flock.
2849 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
2850 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
2851 ## Debian maintainer hasn't provided a clean fix for Emacs.
2852 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
2853 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
2854 ## correct logic. -- fx
2855 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
2856 ## liblockfile is a Free Software replacement for libmail, used on
2857 ## Debian systems and elsewhere. -rfr.
2860 if test $have_mail = yes || test $have_lockfile = yes; then
2861 test $ac_cv_header_maillock_h = yes && mail_lock=no
2867 case "$mail_lock" in
2868 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
2870 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
2872 *) BLESSMAIL_TARGET="need-blessmail" ;;
2874 AC_SUBST(BLESSMAIL_TARGET)
2877 AC_CHECK_FUNCS(gethostname \
2878 closedir getrusage get_current_dir_name \
2880 fpathconf select euidaccess getpagesize setlocale \
2881 utimes getrlimit setrlimit setpgid getcwd shutdown getaddrinfo \
2882 __fpending strsignal setitimer \
2883 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
2884 gai_strerror mkstemp getline getdelim fsync sync \
2885 difftime posix_memalign \
2886 getpwent endpwent getgrent endgrent \
2888 cfmakeraw cfsetspeed copysign __executable_start)
2890 dnl getwd appears to be buggy on SVR4.2, so we don't use it.
2891 if test $opsys = unixware; then
2892 dnl In case some other test ends up checking for getwd.
2893 AC_DEFINE(BROKEN_GETWD, 1, [Define if getwd should not be used.])
2895 AC_CHECK_FUNCS(getwd)
2898 ## Eric Backus <ericb@lsid.hp.com> says, HP-UX 9.x on HP 700 machines
2899 ## has a broken `rint' in some library versions including math library
2900 ## version number A.09.05.
2901 ## You can fix the math library by installing patch number PHSS_4630.
2902 ## But we can fix it more reliably for Emacs by just not using rint.
2903 ## We also skip HAVE_RANDOM - see comments in src/conf_post.h.
2906 *) AC_CHECK_FUNCS(random rint) ;;
2909 dnl Cannot use AC_CHECK_FUNCS
2910 AC_CACHE_CHECK([for __builtin_unwind_init],
2911 emacs_cv_func___builtin_unwind_init,
2912 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
2913 emacs_cv_func___builtin_unwind_init=yes,
2914 emacs_cv_func___builtin_unwind_init=no)])
2915 if test $emacs_cv_func___builtin_unwind_init = yes; then
2916 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
2917 [Define to 1 if you have the `__builtin_unwind_init' function.])
2920 AC_CHECK_HEADERS_ONCE(sys/un.h)
2927 AC_CHECK_FUNCS(grantpt)
2929 # PTY-related GNU extensions.
2930 AC_CHECK_FUNCS(getpt posix_openpt)
2932 # Check this now, so that we will NOT find the above functions in ncurses.
2933 # That is because we have not set up to link ncurses in lib-src.
2934 # It's better to believe a function is not available
2935 # than to expect to find it in ncurses.
2936 # Also we need tputs and friends to be able to build at all.
2937 AC_MSG_CHECKING([for library containing tputs])
2938 # Run a test program that contains a call to tputs, a call that is
2939 # never executed. This tests whether a pre-'main' dynamic linker
2940 # works with the library. It's too much trouble to actually call
2941 # tputs in the test program, due to portability hassles. When
2942 # cross-compiling, assume the test program will run if it links.
2943 AC_DEFUN([tputs_link_source], [
2945 [[extern void tputs (const char *, int, int (*)(int));
2946 int main (int argc, char **argv)
2949 tputs (argv[0], 0, 0);
2953 # Maybe curses should be tried earlier?
2954 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
2955 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
2957 if test -z "$tputs_library"; then
2961 LIBS_TERMCAP=-l$tputs_library
2963 LIBS="$LIBS_TERMCAP $LIBS"
2965 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
2966 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
2968 if test "X$msg" != Xno; then
2972 AC_MSG_RESULT([$msg])
2973 if test "X$msg" = Xno; then
2974 AC_MSG_ERROR([The required function `tputs' was not found in any library.
2975 The following libraries were tried (in order):
2976 libtinfo, libncurses, libterminfo, libtermcap, libcurses
2977 Please try installing whichever of these libraries is most appropriate
2978 for your system, together with its header files.
2979 For example, a libncurses-dev(el) or similar package.])
2982 ## Use termcap instead of terminfo?
2983 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
2985 ## FIXME? In the cases below where we unconditionally set
2986 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
2987 ## if that was found above to have tputs.
2988 ## Should we use the gnu* logic everywhere?
2990 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
2991 ## The ncurses library has been moved out of the System framework in
2992 ## Mac OS X 10.2. So if configure detects it, set the command-line
2993 ## option to use it.
2994 darwin) LIBS_TERMCAP="-lncurses" ;;
2996 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
2999 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3000 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3001 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3002 [[#if __FreeBSD_version < 400000
3005 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3007 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3009 if test $emacs_cv_freebsd_terminfo = yes; then
3010 LIBS_TERMCAP="-lncurses"
3013 LIBS_TERMCAP="-ltermcap"
3018 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3020 LIBS_TERMCAP="-ltermcap"
3024 openbsd) LIBS_TERMCAP="-lncurses" ;;
3026 ## hpux: Make sure we get select from libc rather than from libcurses
3027 ## because libcurses on HPUX 10.10 has a broken version of select.
3028 ## We used to use -lc -lcurses, but this may be cleaner.
3029 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3030 # set that way, now it uses the default). Isn't this a contradiction?
3031 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3035 TERMCAP_OBJ=tparam.o
3036 if test $TERMINFO = yes; then
3037 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3038 TERMCAP_OBJ=terminfo.o
3040 AC_SUBST(LIBS_TERMCAP)
3041 AC_SUBST(TERMCAP_OBJ)
3044 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3045 # On Darwin, res_init appears not to be useful: see bug#562 and
3046 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3049 if test $opsys != darwin; then
3051 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3052 #include <arpa/nameser.h>
3053 #include <resolv.h>]],
3054 [[return res_init();]])],
3055 have_res_init=yes, have_res_init=no)
3056 if test "$have_res_init" = no; then
3058 LIBS="$LIBS -lresolv"
3059 AC_MSG_CHECKING(for res_init with -lresolv)
3060 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3061 #include <arpa/nameser.h>
3062 #include <resolv.h>]],
3063 [[return res_init();]])],
3064 have_res_init=yes, have_res_init=no)
3065 AC_MSG_RESULT($have_res_init)
3066 if test "$have_res_init" = yes ; then
3072 if test "$have_res_init" = yes; then
3073 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3077 # Do we need the Hesiod library to provide the support routines?
3078 dnl FIXME? Should we be skipping this on Darwin too?
3080 if test "$with_hesiod" != no ; then
3081 # Don't set $LIBS here -- see comments above. FIXME which comments?
3082 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3083 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3084 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3085 if test "$resolv" = yes ; then
3090 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3091 hesiod=yes, :, $RESOLVLIB)])
3093 if test x"$hesiod" = xyes; then
3094 AC_DEFINE(HAVE_LIBHESIOD, 1,
3095 [Define to 1 if you have the hesiod library (-lhesiod).])
3101 # Do we need libresolv (due to res_init or Hesiod)?
3102 if test "$resolv" = yes && test $opsys != darwin; then
3103 AC_DEFINE(HAVE_LIBRESOLV, 1,
3104 [Define to 1 if you have the resolv library (-lresolv).])
3111 # These tell us which Kerberos-related libraries to use.
3118 if test "${with_kerberos}" != no; then
3119 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3120 if test $have_com_err = yes; then
3121 COM_ERRLIB=-lcom_err
3122 LIBS="$COM_ERRLIB $LIBS"
3123 AC_DEFINE(HAVE_LIBCOM_ERR, 1, [Define to 1 if you have the `com_err' library (-lcom_err).])
3125 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3126 if test $have_crypto = yes; then
3128 LIBS="$CRYPTOLIB $LIBS"
3129 AC_DEFINE(HAVE_LIBCRYPTO, 1, [Define to 1 if you have the `crypto' library (-lcrypto).])
3131 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3132 if test $have_k5crypto = yes; then
3133 CRYPTOLIB=-lk5crypto
3134 LIBS="$CRYPTOLIB $LIBS"
3135 AC_DEFINE(HAVE_LIBK5CRYPTO, 1, [Define to 1 if you have the `k5crypto' library (-lk5crypto).])
3137 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3138 if test $have_krb5=yes; then
3140 LIBS="$KRB5LIB $LIBS"
3141 AC_DEFINE(HAVE_LIBKRB5, 1, [Define to 1 if you have the `krb5' library (-lkrb5).])
3143 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3144 if test "${with_kerberos5}" = no; then
3145 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3146 if test $have_des425 = yes; then
3148 LIBS="$DESLIB $LIBS"
3149 AC_DEFINE(HAVE_LIBDES425, 1, [Define to 1 if you have the `des425' library (-ldes425).])
3151 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3152 if test $have_des = yes; then
3154 LIBS="$DESLIB $LIBS"
3155 AC_DEFINE(HAVE_LIBDES, 1, [Define to 1 if you have the `des' library (-ldes).])
3158 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3159 if test $have_krb4 = yes; then
3161 LIBS="$KRB4LIB $LIBS"
3162 AC_DEFINE(HAVE_LIBKRB4, 1, [Define to 1 if you have the `krb4' library (-lkrb4).])
3164 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3165 if test $have_krb = yes; then
3167 LIBS="$KRB4LIB $LIBS"
3168 AC_DEFINE(HAVE_LIBKRB, 1, [Define to 1 if you have the `krb' library (-lkrb).])
3173 if test "${with_kerberos5}" != no; then
3174 AC_CHECK_HEADERS(krb5.h,
3175 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3176 [#include <krb5.h>])])
3178 AC_CHECK_HEADERS(des.h,,
3179 [AC_CHECK_HEADERS(kerberosIV/des.h,,
3180 [AC_CHECK_HEADERS(kerberos/des.h)])])
3181 AC_CHECK_HEADERS(krb.h,,
3182 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3183 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3185 AC_CHECK_HEADERS(com_err.h)
3188 AC_SUBST(COM_ERRLIB)
3194 AC_CHECK_FUNCS_ONCE(tzset)
3195 AC_MSG_CHECKING(whether localtime caches TZ)
3196 AC_CACHE_VAL(emacs_cv_localtime_cache,
3197 [if test x$ac_cv_func_tzset = xyes; then
3198 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3199 char TZ_GMT0[] = "TZ=GMT0";
3200 char TZ_PST8[] = "TZ=PST8";
3203 time_t now = time ((time_t *) 0);
3204 int hour_GMT0, hour_unset;
3205 if (putenv (TZ_GMT0) != 0)
3207 hour_GMT0 = localtime (&now)->tm_hour;
3209 hour_unset = localtime (&now)->tm_hour;
3210 if (putenv (TZ_PST8) != 0)
3212 if (localtime (&now)->tm_hour == hour_GMT0)
3215 if (localtime (&now)->tm_hour != hour_unset)
3218 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3219 [# If we have tzset, assume the worst when cross-compiling.
3220 emacs_cv_localtime_cache=yes])
3222 # If we lack tzset, report that localtime does not cache TZ,
3223 # since we can't invalidate the cache if we don't have tzset.
3224 emacs_cv_localtime_cache=no
3226 AC_MSG_RESULT($emacs_cv_localtime_cache)
3227 if test $emacs_cv_localtime_cache = yes; then
3228 AC_DEFINE(LOCALTIME_CACHE, 1,
3229 [Define to 1 if localtime caches TZ.])
3233 AC_CHECK_FUNC(socket, , ok_so_far=no)
3234 if test $ok_so_far = yes; then
3235 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3237 if test $ok_so_far = yes; then
3238 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3240 if test $ok_so_far = yes; then
3241 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3242 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3243 [Define to 1 if you have inet sockets.])
3246 if test -f /usr/lpp/X11/bin/smt.exp; then
3247 AC_DEFINE(HAVE_AIX_SMT_EXP, 1,
3248 [Define to 1 if the file /usr/lpp/X11/bin/smt.exp exists.])
3251 AC_MSG_CHECKING(whether system supports dynamic ptys)
3252 if test -d /dev/pts && ls -d /dev/ptmx > /dev/null 2>&1 ; then
3254 AC_DEFINE(HAVE_DEV_PTMX, 1, [Define to 1 if dynamic ptys are supported.])
3259 dnl Check for a Solaris 2.4 vfork bug that Autoconf misses (through 2.69).
3260 dnl This can be removed once we assume Autoconf 2.70.
3262 *-solaris2.4 | *-solaris2.4.*)
3263 dnl Disable the Autoconf-generated vfork test.
3264 : ${ac_cv_func_vfork_works=no};;
3269 AC_CHECK_FUNCS(snprintf)
3271 dnl Adapted from Haible's version.
3272 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3273 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3274 [[char* cs = nl_langinfo(CODESET);]])],
3275 emacs_cv_langinfo_codeset=yes,
3276 emacs_cv_langinfo_codeset=no)
3278 if test $emacs_cv_langinfo_codeset = yes; then
3279 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3280 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3285 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3286 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3287 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3288 if test "$emacs_cv_c_restrict_arr" = yes; then
3289 AC_DEFINE(__restrict_arr, __restrict,
3290 [Define to compiler's equivalent of C99 restrict keyword in array
3291 declarations. Define as empty for no equivalent.])
3294 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3295 dnl how the tty code is related to POSIX and/or other versions of termios.
3296 dnl The following looks like a useful start.
3298 dnl AC_SYS_POSIX_TERMIOS
3299 dnl if test $ac_cv_sys_posix_termios = yes; then
3300 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3301 dnl and macros for terminal control.])
3302 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3305 dnl Turned on June 1996 supposing nobody will mind it.
3306 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3307 in the full name stands for the login id.])
3309 dnl Every platform that uses configure (ie every non-MS platform)
3310 dnl supports this. There is a create-lockfiles option you can
3311 dnl customize if you do not want the lock files to be written.
3312 dnl So it is not clear that this #define still needs to exist.
3313 AC_DEFINE(CLASH_DETECTION, 1, [Define if you want lock files to be written,
3314 so that Emacs can tell instantly when you try to modify a file that
3315 someone else has modified in his/her Emacs.])
3317 dnl Everybody supports this, except MS.
3318 dnl Seems like the kind of thing we should be testing for, though.
3319 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3320 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3322 dnl Everybody supports this, except MS-DOS.
3323 dnl Seems like the kind of thing we should be testing for, though.
3324 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3325 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3326 4.2-compatible sockets.])
3328 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3330 AC_DEFINE(NULL_DEVICE, ["/dev/null"], [Name of the file to open to get
3331 a null file, or a data sink.])
3333 AC_DEFINE(SEPCHAR, [':'], [Character that separates PATH elements.])
3335 dnl Everybody supports this, except MS-DOS.
3336 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3338 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3341 AC_DEFINE(DIRECTORY_SEP, ['/'],
3342 [Character that separates directories in a file name.])
3344 dnl Only used on MS platforms.
3345 AH_TEMPLATE(DEVICE_SEP, [Character that separates a device in a file name.])
3347 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
3348 [Returns true if character is a device separator.])
3350 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
3351 [Returns true if character is a directory separator.])
3353 dnl On MS, this also accepts IS_DEVICE_SEP.
3354 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
3355 [Returns true if character is any form of separator.])
3358 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
3362 dnl Unfortunately without libXmu we cannot support EditRes.
3363 if test x$ac_cv_lib_Xmu_XmuConvertStandardSelection != xyes; then
3364 AC_DEFINE(NO_EDITRES, 1)
3369 dnl Assar Westerlund <assar@sics.se> says this is necessary for
3370 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
3371 AC_DEFINE(NO_EDITRES, 1)
3377 irix6-5 | sol2* | unixware )
3378 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
3379 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
3380 dnl need the constant to dimension an array. So wire in the appropriate
3382 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
3386 emacs_broken_SIGIO=no
3389 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
3390 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
3391 hpux* | irix6-5 | openbsd | sol2* | unixware )
3392 emacs_broken_SIGIO=yes
3396 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
3397 dnl the way this system works, libc functions that return malloced
3398 dnl memory use the libc malloc implementation. Calling xfree or
3399 dnl xrealloc on the results of such functions results in a crash.
3401 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
3402 dnl but that does not currently work on this system.
3404 dnl It is possible to completely override the malloc implementation on
3405 dnl AIX, but that involves putting the malloc functions in a shared
3406 dnl library and setting the MALLOCTYPE environment variable to point to
3407 dnl that shared library.
3409 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
3410 dnl to avoid a crash just use the Emacs implementation for that function.
3412 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
3413 dnl of this file, so that we do not check for get_current_dir_name
3414 dnl on AIX. But that might be fragile if something else ends
3415 dnl up testing for get_current_dir_name as a dependency.
3416 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
3417 get_current_dir_name should not be used.])
3421 dnl Circumvent a bug in FreeBSD. In the following sequence of
3422 dnl writes/reads on a PTY, read(2) returns bogus data:
3424 dnl write(2) 1022 bytes
3425 dnl write(2) 954 bytes, get EAGAIN
3426 dnl read(2) 1024 bytes in process_read_output
3427 dnl read(2) 11 bytes in process_read_output
3429 dnl That is, read(2) returns more bytes than have ever been written
3430 dnl successfully. The 1033 bytes read are the 1022 bytes written
3431 dnl successfully after processing (for example with CRs added if the
3432 dnl terminal is set up that way which it is here). The same bytes will
3433 dnl be seen again in a later read(2), without the CRs.
3434 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
3435 work around an issue when reading from a PTY.])
3441 dnl FIXME Can't we test if this exists (eg /proc/$$)?
3442 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
3447 darwin | freebsd | netbsd | openbsd )
3448 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
3449 close a pty to make it a controlling terminal (it is already a
3450 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
3454 dnl FIXME Surely we can test for this rather than hard-code it.
3456 netbsd | openbsd) sound_device="/dev/audio" ;;
3457 *) sound_device="/dev/dsp" ;;
3461 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
3462 [Name of the default sound device.])
3465 dnl Emacs can read input using SIGIO and buffering characters itself,
3466 dnl or using CBREAK mode and making C-g cause SIGINT.
3467 dnl The choice is controlled by the variable interrupt_input.
3469 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
3471 dnl Emacs uses the presence of the USABLE_SIGIO macro
3472 dnl to indicate whether or not signal-driven I/O is possible. It uses
3473 dnl INTERRUPT_INPUT to decide whether to use it by default.
3475 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
3476 dnl CBREAK mode has two disadvantages
3477 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
3478 dnl I hear that in system V this problem does not exist.
3479 dnl 2) Control-G causes output to be discarded.
3480 dnl I do not know whether this can be fixed in system V.
3482 dnl Another method of doing input is planned but not implemented.
3483 dnl It would have Emacs fork off a separate process
3484 dnl to read the input and send it to the true Emacs process
3487 darwin | gnu-linux | gnu-kfreebsd )
3488 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
3493 dnl If the system's imake configuration file defines `NeedWidePrototypes'
3494 dnl as `NO', we must define NARROWPROTO manually. Such a define is
3495 dnl generated in the Makefile generated by `xmkmf'. If we don't define
3496 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
3497 dnl taking float or double parameters.
3499 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
3500 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
3501 file defines `NeedWidePrototypes' as `NO'.])
3506 dnl Used in process.c, this must be a loop, even if it only runs once.
3507 dnl (Except on SGI; see below. Take that, clarity and consistency!)
3508 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
3509 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
3510 dnl trying suffixes 0-16.
3511 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
3512 first PTY, if PTYs are supported.])
3513 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
3514 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
3515 end of a PTY, if non-standard.])
3516 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
3517 end of a PTY, if non-standard.])
3521 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
3522 dnl You allocate a pty by opening /dev/ptc to get the master side.
3523 dnl To get the name of the slave side, you just ttyname() the master side.
3524 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
3525 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
3529 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3530 dnl multi-line AC_DEFINEs are hard. :(
3531 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)])
3532 AC_DEFINE(PTY_NAME_SPRINTF, [])
3533 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3536 dnl FIXME? Maybe use same as freebsd - see bug#12040.
3538 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3539 dnl Not used, because PTY_ITERATION is defined.
3540 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3541 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
3542 dnl But we don't have to block SIGCHLD because it is blocked in the
3543 dnl implementation of grantpt.
3544 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (0)])
3545 AC_DEFINE(PTY_NAME_SPRINTF, [])
3546 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3550 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3553 gnu-linux | gnu-kfreebsd | freebsd | netbsd )
3555 if test "x$ac_cv_func_grantpt" = xyes; then
3556 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
3557 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3558 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
3559 dnl to prevent sigchld_handler from intercepting the child's death.
3560 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); }])
3561 dnl if HAVE_POSIX_OPENPT
3562 if test "x$ac_cv_func_posix_openpt" = xyes; then
3563 AC_DEFINE(PTY_OPEN, [fd = posix_openpt (O_RDWR | O_NOCTTY)])
3564 AC_DEFINE(PTY_NAME_SPRINTF, [])
3566 elif test "x$ac_cv_func_getpt" = xyes; then
3567 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
3568 AC_DEFINE(PTY_NAME_SPRINTF, [])
3570 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
3573 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3578 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3579 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
3580 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
3584 dnl It looks like this cannot be right, because it is not a loop.
3585 dnl However, process.c actually does this:
3591 dnl which presumably makes it OK, since irix == sgi (?).
3592 dnl FIXME it seems like this special treatment is unnecessary?
3593 dnl Why can't irix use a single-trip loop like eg cygwin?
3594 AC_DEFINE(PTY_ITERATION, [])
3595 dnl Not used, because PTY_ITERATION is defined.
3596 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
3597 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); }])
3598 dnl No need to get the pty name at all.
3599 AC_DEFINE(PTY_NAME_SPRINTF, [])
3600 dnl No need to use sprintf to get the tty name--we get that from _getpty.
3601 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3605 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
3606 dnl from intercepting that death. If any child but grantpt's should die
3607 dnl within, it should be caught after sigrelse(2).
3608 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); }])
3612 dnl Comments are as per sol2*.
3613 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); }])
3620 dnl This change means that we don't loop through allocate_pty too
3621 dnl many times in the (rare) event of a failure.
3622 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
3623 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
3624 dnl Push various streams modules onto a PTY channel. Used in process.c.
3625 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.])
3630 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
3631 "typing" a signal character on the pty.])
3634 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
3635 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
3636 aix4-2 | cygwin | gnu | irix6-5 | freebsd | netbsd | openbsd )
3637 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3640 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
3641 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
3642 gnu-linux | gnu-kfreebsd )
3644 AC_MSG_CHECKING([for signals via characters])
3645 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3646 #include <linux/version.h>
3647 #if LINUX_VERSION_CODE < 0x20400
3648 # error "Linux version too old"
3650 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
3652 AC_MSG_RESULT([$emacs_signals_via_chars])
3653 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3658 dnl Used in dispnew.c
3659 AH_TEMPLATE(PENDING_OUTPUT_COUNT, [Number of chars of output in the
3660 buffer of a stdio stream.])
3662 AC_MSG_CHECKING([whether we are using the GNU C library])
3663 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3664 #include <features.h>
3665 #ifndef __GNU_LIBRARY__
3666 # error "this is not the GNU C library"
3668 ]], [[]])], emacs_glibc=yes, emacs_glibc=no)
3669 AC_MSG_RESULT([$emacs_glibc])
3671 if test $emacs_glibc = yes; then
3673 emacs_pending_output=unknown
3676 gnu | gnu-linux | gnu-kfreebsd )
3677 AC_MSG_CHECKING([for style of pending output formalism])
3678 dnl In autoconf 2.67 and later, we could use a single test
3679 dnl since the preprocessed output is accessible in "conftest.i".
3680 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3682 #if !defined (_IO_STDIO_H) && !defined (_STDIO_USES_IOSTREAM)
3683 # error "stdio definitions not found"
3685 ]], [[]])], emacs_pending_output=new, [])
3687 if test $emacs_pending_output = unknown; then
3689 gnu-linux | gnu-kfreebsd)
3690 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3693 # error "not using uclibc"
3695 ]], [[]])], emacs_pending_output=uclibc, emacs_pending_output=old)
3700 AC_MSG_RESULT([$emacs_pending_output])
3702 case $emacs_pending_output in
3704 dnl New C libio names.
3705 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE),
3706 [((FILE)->_IO_write_ptr - (FILE)->_IO_write_base)])
3709 dnl Using the uClibc library.
3710 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE),
3711 [((FILE)->__bufpos - (FILE)->__bufstart)])
3714 dnl Old C++ iostream names.
3715 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE),
3716 [((FILE)->_pptr - (FILE)->_pbase)])
3722 if test $emacs_pending_output = unknown; then
3723 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->__bufp - (FILE)->__buffer)])
3726 else dnl !emacs_glibc
3729 cygwin | darwin | freebsd | netbsd | openbsd )
3730 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->_p - (FILE)->_bf._base)])
3734 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->__ptr - (FILE)->__base)])
3738 dnl HAVE_STDIO_EXT_H && HAVE___FPENDING
3739 if test x$ac_cv_header_stdio_ext_h = xyes && \
3740 test x$ac_cv_func___fpending = xyes; then
3741 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [__fpending (FILE)])
3742 AC_DEFINE(DISPNEW_NEEDS_STDIO_EXT, 1,
3743 [Define if dispnew.c should include stdio_ext.h.])
3745 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->_ptr - (FILE)->_base)])
3752 dnl Used in vm-limit.c
3753 AH_TEMPLATE(DATA_START, [Address of the start of the data segment.])
3754 dnl Used in lisp.h, emacs.c, mem-limits.h
3755 dnl NEWS.18 describes this as "a number which contains
3756 dnl the high bits to be inclusive or'ed with pointers that are unpacked."
3757 AH_TEMPLATE(DATA_SEG_BITS, [Extra bits to be or'd in with any pointers
3758 stored in a Lisp_Object.])
3759 dnl if Emacs uses fewer than 32 bits for the value field of a LISP_OBJECT.
3763 dnl libc defines data_start.
3764 AC_DEFINE(DATA_START, [({ extern int data_start; (char *) &data_start; })])
3768 dnl The data segment on this machine always starts at address 0x40000000.
3769 AC_DEFINE(DATA_START, [0x40000000])
3770 AC_DEFINE(DATA_SEG_BITS, [0x40000000])
3773 AC_DEFINE(DATA_START, [0x10000000])
3774 AC_DEFINE(DATA_SEG_BITS, [0x10000000])
3779 AH_TEMPLATE(ULIMIT_BREAK_VALUE, [Undocumented.])
3780 AH_TEMPLATE(TAB3, [Undocumented.])
3783 darwin) AC_DEFINE(TAB3, OXTABS) ;;
3785 gnu | freebsd | netbsd | openbsd )
3786 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
3787 AC_DEFINE(TAB3, OXTABS)
3790 gnu-linux | gnu-kfreebsd )
3791 dnl libc-linux/sysdeps/linux/i386/ulimit.c says that due to shared
3792 dnl library, we cannot get the maximum address for brk.
3793 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3797 ]], [[]])], AC_DEFINE(ULIMIT_BREAK_VALUE, [(32*1024*1024)]), [])
3799 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3803 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
3804 [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)],
3805 [Mark a secondary stack, like the register stack on the ia64.]), [])
3809 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
3810 run_time_remap; for HPUX.])
3814 dnl Ulimit(UL_GMEMLIM) is busted...
3815 AC_DEFINE(ULIMIT_BREAK_VALUE, [0x14000000])
3820 dnl These won't be used automatically yet. We also need to know, at least,
3821 dnl that the stack is continuous.
3822 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
3823 registers relevant for conservative garbage collection in the jmp_buf.])
3825 AH_TEMPLATE(GC_MARK_STACK, [Define to GC_USE_GCPROS_AS_BEFORE if
3826 conservative garbage collection is not known to work.])
3830 aix4-2 | hpux* | unixware)
3831 dnl Conservative garbage collection has not been tested, so for now
3832 dnl play it safe and stick with the old-fashioned way of marking.
3833 AC_DEFINE(GC_MARK_STACK, [GC_USE_GCPROS_AS_BEFORE])
3836 dnl Not all the architectures are tested, but there are Debian packages
3837 dnl for SCM and/or Guile on them, so the technique must work. See also
3838 dnl comments in alloc.c concerning setjmp and gcc.
3839 dnl Fixme: it's probably safe to just use the GCC conditional below.
3840 gnu-linux | gnu-kfreebsd )
3841 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3842 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
3843 || defined __alpha__ || defined __mips__ || defined __s390__ \
3844 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
3845 || defined __ia64__ || defined __sh__
3848 # error "setjmp not known to work on this arch"
3850 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1),
3851 AC_DEFINE(GC_MARK_STACK, [GC_USE_GCPROS_AS_BEFORE]) )
3856 if test x$GCC = xyes; then
3857 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
3858 AC_DEFINE(GC_SETJMP_WORKS, 1)
3861 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
3862 freebsd | netbsd | openbsd | irix6-5 | sol2* )
3863 AC_DEFINE(GC_SETJMP_WORKS, 1)
3868 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
3871 [[#include <setjmp.h>
3875 _longjmp (j, 1);]])],
3876 [emacs_cv_func__setjmp=yes],
3877 [emacs_cv_func__setjmp=no])])
3878 if test $emacs_cv_func__setjmp = yes; then
3879 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
3881 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
3884 [[#include <setjmp.h>
3887 if (! sigsetjmp (j, 1))
3888 siglongjmp (j, 1);]])],
3889 [emacs_cv_func_sigsetjmp=yes],
3890 [emacs_cv_func_sigsetjmp=no])])
3891 if test $emacs_cv_func_sigsetjmp = yes; then
3892 AC_DEFINE([HAVE_SIGSETJMP], 1,
3893 [Define to 1 if sigsetjmp and siglongjmp work.
3894 The value of this symbol is irrelevant if HAVE__SETJMP is defined.])
3900 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
3901 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
3902 dnl and this is all we need.
3903 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
3910 dnl Used in xfaces.c.
3911 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
3912 some systems, where it requires time.h.])
3917 dnl Define symbols to identify the version of Unix this is.
3918 dnl Define all the symbols that apply correctly.
3919 AH_TEMPLATE(BSD4_2, [Define if the system is compatible with BSD 4.2.])
3920 AH_TEMPLATE(BSD_SYSTEM, [Define if the system is compatible with BSD 4.2.])
3921 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
3922 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
3923 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
3924 AH_TEMPLATE(USG5, [Define if the system is compatible with System V.])
3925 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
3931 dnl This symbol should be defined on AIX Version 3 ???????
3932 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3934 # error "_AIX not defined"
3936 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
3940 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
3944 dnl BSD4_3 and BSD4_4 are already defined in sys/param.h.
3945 AC_DEFINE(BSD4_2, [])
3946 AC_DEFINE(BSD_SYSTEM, [])
3947 dnl More specific than the above two. We cannot use __APPLE__ as this
3948 dnl may not be defined on non-OSX Darwin, and we cannot define DARWIN
3949 dnl here because Panther and lower CoreFoundation.h uses DARWIN to
3950 dnl distinguish OS X from pure Darwin.
3951 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
3955 AC_DEFINE(BSD4_2, [])
3956 dnl Hack to avoid calling AC_PREPROC_IFELSE multiple times.
3957 dnl Would not be needed with autoconf >= 2.67, where the
3958 dnl preprocessed output is accessible in "conftest.i".
3959 AC_DEFINE(BSD_SYSTEM_AHB, 1, [Define if AH_BOTTOM should change BSD_SYSTEM.])
3962 gnu | netbsd | openbsd )
3963 AC_DEFINE(BSD4_2, [])
3964 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3966 # error "BSD_SYSTEM not defined"
3968 ]], [[]])], [], AC_DEFINE(BSD_SYSTEM, 43) )
3971 gnu-linux | gnu-kfreebsd )
3973 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
3979 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
3985 AC_DEFINE(USG5_4, [])
3986 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
3992 AC_DEFINE(USG5_4, [])
3993 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
3999 AC_DEFINE(USG5_4, [])
4003 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4006 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4007 emacs_cv_usable_FIONREAD=no
4012 [AC_LANG_PROGRAM([[#include <sys/types.h>
4013 #include <sys/ioctl.h>
4015 # include <sys/filio.h>
4018 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4019 [emacs_cv_usable_FIONREAD=yes],
4020 [emacs_cv_usable_FIONREAD=no])
4023 if test $emacs_cv_usable_FIONREAD = yes; then
4024 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4026 if test $emacs_broken_SIGIO = no; then
4027 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4029 [AC_LANG_PROGRAM([[#include <fcntl.h>
4032 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4033 [emacs_cv_usable_SIGIO=yes],
4034 [emacs_cv_usable_SIGIO=no])],
4035 [emacs_cv_usable_SIGIO=yes],
4036 [emacs_cv_usable_SIGIO=no])
4037 if test $emacs_cv_usable_SIGIO = yes; then
4038 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4045 dnl Emacs supplies its own malloc, but glib (part of Gtk+) calls
4046 dnl memalign and on Cygwin, that becomes the Cygwin-supplied memalign.
4047 dnl As malloc is not the Cygwin malloc, the Cygwin memalign always
4048 dnl returns ENOSYS. A workaround is to set G_SLICE=always-malloc. */
4050 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
4051 G_SLICE environment variable to "always-malloc" at startup, if
4056 dnl It works to open the pty's tty in the parent (Emacs), then
4057 dnl close and reopen it in the child.
4058 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4059 works to open a pty's tty in the parent process, then close and
4060 reopen it in the child.])
4064 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4065 use VSUSP instead of VSWTCH.])
4066 AC_DEFINE(SETPGRP_RELEASES_CTTY, 1, [Define if process.c:child_setup
4067 should not call setpgrp.])
4071 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4076 # Set up the CFLAGS for real compilation, so we can substitute it.
4077 CFLAGS="$REAL_CFLAGS"
4078 CPPFLAGS="$REAL_CPPFLAGS"
4080 ## Hack to detect a buggy GCC version.
4081 if test "x$GCC" = xyes \
4082 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4083 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4084 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4085 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4088 version=$PACKAGE_VERSION
4090 copyright="Copyright (C) 2012 Free Software Foundation, Inc."
4091 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4092 [Short copyright string for this version of Emacs.])
4095 ### Specify what sort of things we'll be editing into Makefile and config.h.
4096 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4098 AC_SUBST(configuration)
4103 AC_SUBST(exec_prefix)
4106 AC_SUBST(sharedstatedir)
4107 AC_SUBST(libexecdir)
4112 AC_SUBST(standardlisppath)
4113 AC_SUBST(locallisppath)
4115 AC_SUBST(x_default_search_path)
4117 AC_SUBST(archlibdir)
4122 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4123 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4124 ## end of LIBX_BASE, but nothing ever set it.
4125 AC_SUBST(LD_SWITCH_X_SITE)
4126 AC_SUBST(C_SWITCH_X_SITE)
4127 AC_SUBST(GNUSTEP_CFLAGS)
4129 ## Used in lwlib/Makefile.in.
4130 AC_SUBST(X_TOOLKIT_TYPE)
4132 AC_SUBST(ns_appbindir)
4133 AC_SUBST(ns_appresdir)
4135 AC_SUBST(GNU_OBJC_CFLAGS)
4136 AC_SUBST(OTHER_FILES)
4138 if test -n "${term_header}"; then
4139 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4140 [Define to the header for the built-in window system.])
4143 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4144 [Define to the canonical Emacs configuration name.])
4145 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${ac_configure_args}",
4146 [Define to the options passed to configure.])
4147 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4148 define this to include extra configuration information.])
4153 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4154 AC_DEFINE(HAVE_X_WINDOWS, 1,
4155 [Define to 1 if you want to use the X window system.])
4157 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o xgselect.o"
4159 if test "$HAVE_XFT" = "yes"; then
4160 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4161 elif test "$HAVE_FREETYPE" = "yes"; then
4162 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4172 if test "${USE_X_TOOLKIT}" != "none" ; then
4174 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4175 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4176 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4177 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4178 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4182 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4183 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4187 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4188 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4189 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4193 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4194 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4197 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4200 AC_SUBST(WIDGET_OBJ)
4203 case "$USE_X_TOOLKIT" in
4204 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4205 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4206 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4208 AC_SUBST(TOOLKIT_LIBW)
4210 if test "$USE_X_TOOLKIT" = "none"; then
4211 LIBXT_OTHER="\$(LIBXSM)"
4212 OLDXMENU_TARGET="really-oldXMenu"
4214 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4215 OLDXMENU_TARGET="really-lwlib"
4217 AC_SUBST(LIBXT_OTHER)
4219 ## The X Menu stuff is present in the X10 distribution, but missing
4220 ## from X11. If we have X10, just use the installed library;
4221 ## otherwise, use our own copy.
4222 if test "${HAVE_X11}" = "yes" ; then
4223 AC_DEFINE(HAVE_X11, 1,
4224 [Define to 1 if you want to use version 11 of X windows.
4225 Otherwise, Emacs expects to use version 10.])
4227 if test "$USE_X_TOOLKIT" = "none"; then
4228 OLDXMENU="\${oldXMenudir}/libXMenu11.a"
4230 OLDXMENU="\${lwlibdir}/liblw.a"
4232 LIBXMENU="\$(OLDXMENU)"
4233 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4234 OLDXMENU_DEPS="\${OLDXMENU} ../src/\${OLDXMENU}"
4236 ## For a syntactically valid Makefile; not actually used for anything.
4237 ## See comments in src/Makefile.in.
4239 ## FIXME This case (!HAVE_X11 && HAVE_X_WINDOWS) is no longer possible(?).
4240 if test "${HAVE_X_WINDOWS}" = "yes"; then
4249 if test "$HAVE_GTK" = "yes" || test "$HAVE_MENUS" != "yes"; then
4256 AC_SUBST(OLDXMENU_TARGET)
4259 AC_SUBST(LIBX_OTHER)
4260 AC_SUBST(OLDXMENU_DEPS)
4262 if test "${HAVE_MENUS}" = "yes" ; then
4263 AC_DEFINE(HAVE_MENUS, 1,
4264 [Define to 1 if you have mouse menus.
4265 (This is automatic if you use X, but the option to specify it remains.)
4266 It is also defined with other window systems that support xmenu.c.])
4269 if test "${GNU_MALLOC}" = "yes" ; then
4270 AC_DEFINE(GNU_MALLOC, 1,
4271 [Define to 1 if you want to use the GNU memory allocator.])
4275 if test "${REL_ALLOC}" = "yes" ; then
4276 AC_DEFINE(REL_ALLOC, 1,
4277 [Define REL_ALLOC if you want to use the relocating allocator for
4280 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4282 AC_SUBST(RALLOC_OBJ)
4284 if test "$opsys" = "cygwin"; then
4285 CYGWIN_OBJ="sheap.o cygw32.o"
4286 ## Cygwin differs because of its unexec().
4288 POST_ALLOC_OBJ=lastfile.o
4291 PRE_ALLOC_OBJ=lastfile.o
4294 AC_SUBST(CYGWIN_OBJ)
4295 AC_SUBST(PRE_ALLOC_OBJ)
4296 AC_SUBST(POST_ALLOC_OBJ)
4298 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4299 # it temporarily reverts them to their pre-pkg-config values,
4300 # because gnulib needs to work with both src (which uses the
4301 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4302 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4303 # and it therefore needs to run in an environment where LIBS does not
4304 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4305 # for some package unrelated to lib-src.
4308 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4309 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4310 gl_ASSERT_NO_GNULIB_POSIXCHECK
4311 gl_ASSERT_NO_GNULIB_TESTS
4317 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4320 ## The -headerpad option tells ld (see man page) to leave room at the
4321 ## end of the header for adding load commands. Needed for dumping.
4322 ## 0x690 is the total size of 30 segment load commands (at 56
4323 ## each); under Cocoa 31 commands are required.
4324 if test "$HAVE_NS" = "yes"; then
4325 libs_nsgui="-framework AppKit"
4331 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4333 ## This is here because src/Makefile.in did some extra fiddling around
4334 ## with LD_SWITCH_SYSTEM. The cpp logic was:
4335 ## #ifndef LD_SWITCH_SYSTEM
4336 ## #if !defined (__GNUC__) && ((defined (BSD_SYSTEM) && !defined (COFF)))
4337 ## Since all the *bsds define LD_SWITCH_SYSTEM, this simplifies to:
4338 ## not using gcc, darwin.
4339 ## Because this was done in src/Makefile.in, the resulting part of
4340 ## LD_SWITCH_SYSTEM was not used in configure (ie, in ac_link).
4341 ## It therefore seems cleaner to put this in LD_SWITCH_SYSTEM_TEMACS,
4342 ## rather than LD_SWITCH_SYSTEM.
4343 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4344 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4347 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4348 ## find X at run-time.
4349 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4350 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4351 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4352 ## had different values in configure (in ac_link) and src/Makefile.in.
4353 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4354 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4356 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4359 if test "$NS_IMPL_GNUSTEP" = "yes"; then
4360 LD_SWITCH_SYSTEM_TEMACS="${LD_SWITCH_SYSTEM_TEMACS} -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES} -lgnustep-gui -lgnustep-base -lobjc -lpthread"
4363 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4369 ## gnu: GNU needs its own crt0.
4370 aix4-2|cygwin|darwin|gnu|hpux*|irix6-5|sol2*|unixware) ORDINARY_LINK=yes ;;
4372 ## On post 1.3 releases of NetBSD, gcc -nostdlib also clears the
4373 ## library search parth, i.e. it won't search /usr/lib for libc and
4374 ## friends. Using -nostartfiles instead avoids this problem, and
4375 ## will also work on earlier NetBSD releases.
4376 netbsd|openbsd) LD_FIRSTFLAG="-nostartfiles" ;;
4378 ## powerpc*: NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp> says
4379 ## MkLinux/LinuxPPC needs this.
4380 ## s390x-* only supports opsys = gnu-linux so it can be added here.
4382 case "$canonical" in
4383 powerpc*|s390x-*) LD_FIRSTFLAG="-nostdlib" ;;
4389 if test "x$ORDINARY_LINK" = "xyes"; then
4392 AC_DEFINE(ORDINARY_LINK, 1, [Define if the C compiler is the linker.])
4394 ## The system files defining neither ORDINARY_LINK nor LD_FIRSTFLAG are:
4395 ## freebsd, gnu-* not on powerpc*|s390x*.
4396 elif test "x$GCC" = "xyes" && test "x$LD_FIRSTFLAG" = "x"; then
4398 ## Versions of GCC >= 2.0 put their library, libgcc.a, in obscure
4399 ## places that are difficult to figure out at make time. Fortunately,
4400 ## these same versions allow you to pass arbitrary flags on to the
4401 ## linker, so there is no reason not to use it as a linker.
4403 ## Well, it is not quite perfect. The "-nostdlib" keeps GCC from
4404 ## searching for libraries in its internal directories, so we have to
4405 ## ask GCC explicitly where to find libgcc.a (LIB_GCC below).
4406 LD_FIRSTFLAG="-nostdlib"
4409 ## FIXME? What setting of EDIT_LDFLAGS should this have?
4410 test "$NS_IMPL_GNUSTEP" = "yes" && LD_FIRSTFLAG="-rdynamic"
4412 AC_SUBST(LD_FIRSTFLAG)
4415 ## FIXME? The logic here is not precisely the same as that above.
4416 ## There is no check here for a pre-defined LD_FIRSTFLAG.
4417 ## Should we only be setting LIB_GCC if LD ~ -nostdlib?
4419 if test "x$GCC" = "xyes" && test "x$ORDINARY_LINK" != "xyes"; then
4422 freebsd|netbsd|openbsd) LIB_GCC= ;;
4425 ## armin76@gentoo.org reported that the lgcc_s flag is necessary to
4426 ## build on ARM EABI under GNU/Linux. (Bug#5518)
4432 ## FIXME? s/gnu-linux.h used to define LIB_GCC as below, then
4433 ## immediately undefine it again and redefine it to empty.
4434 ## Was the C_SWITCH_X_SITE part really necessary?
4435 ## LIB_GCC=`$CC $C_SWITCH_X_SITE -print-libgcc-file-name`
4441 ## Ask GCC where to find libgcc.a.
4442 *) LIB_GCC=`$CC -print-libgcc-file-name 2> /dev/null` ;;
4447 ## Common for all window systems
4448 if test "$window_system" != "none"; then
4449 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4450 AC_DEFINE(HAVE_MOUSE, 1, [Define if you have mouse support.])
4451 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4454 AC_SUBST(WINDOW_SYSTEM_OBJ)
4456 AH_TOP([/* GNU Emacs site configuration template file.
4458 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2012
4459 Free Software Foundation, Inc.
4461 This file is part of GNU Emacs.
4463 GNU Emacs is free software: you can redistribute it and/or modify
4464 it under the terms of the GNU General Public License as published by
4465 the Free Software Foundation, either version 3 of the License, or
4466 (at your option) any later version.
4468 GNU Emacs is distributed in the hope that it will be useful,
4469 but WITHOUT ANY WARRANTY; without even the implied warranty of
4470 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4471 GNU General Public License for more details.
4473 You should have received a copy of the GNU General Public License
4474 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4477 /* No code in Emacs #includes config.h twice, but some bits of code
4478 intended to work with other packages as well (like gmalloc.c)
4479 think they can include it as many times as they like. */
4480 #ifndef EMACS_CONFIG_H
4481 #define EMACS_CONFIG_H
4484 AH_BOTTOM([#include <conf_post.h>
4486 #endif /* EMACS_CONFIG_H */
4495 #### Report on what we decided to do.
4496 #### Report GTK as a toolkit, even if it doesn't use Xt.
4497 #### It makes printing result more understandable as using GTK sets
4498 #### toolkit_scroll_bars to yes by default.
4499 if test "${HAVE_GTK}" = "yes"; then
4500 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
4504 Configured for \`${canonical}'.
4506 Where should the build process find the source code? ${srcdir}
4507 What compiler should emacs be built with? ${CC} ${CFLAGS}
4508 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4509 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4510 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4511 What window system should Emacs use? ${window_system}
4512 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4514 if test -n "${x_includes}"; then
4515 echo " Where do we find X Windows header files? ${x_includes}"
4517 echo " Where do we find X Windows header files? Standard dirs"
4519 if test -n "${x_libraries}"; then
4520 echo " Where do we find X Windows libraries? ${x_libraries}"
4522 echo " Where do we find X Windows libraries? Standard dirs"
4525 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4526 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4527 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4528 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4529 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4530 echo " Does Emacs use -lpng? ${HAVE_PNG}"
4531 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4532 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4534 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4535 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4536 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4537 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4538 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4539 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4540 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4542 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4543 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4544 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
4545 echo " Does Emacs use -lxft? ${HAVE_XFT}"
4547 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
4550 if test -n "${EMACSDATA}"; then
4551 echo " Environment variable EMACSDATA set to: $EMACSDATA"
4553 if test -n "${EMACSDOC}"; then
4554 echo " Environment variable EMACSDOC set to: $EMACSDOC"
4559 if test "$HAVE_NS" = "yes"; then
4561 echo "You must run \"${MAKE-make} install\" in order to test the built application.
4562 The installed application will go to nextstep/Emacs.app and can be
4563 run or moved from there."
4564 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
4565 echo "The application will be fully self-contained."
4567 echo "The lisp resources for the application will be installed under ${prefix}.
4568 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
4569 to run if these resources are not installed."
4574 if test "${opsys}" = "cygwin"; then
4576 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
4582 # Remove any trailing slashes in these variables.
4583 [test "${prefix}" != NONE &&
4584 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
4585 test "${exec_prefix}" != NONE &&
4586 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
4588 if test "$HAVE_NS" = "yes"; then
4589 if test "$NS_IMPL_GNUSTEP" = yes; then
4590 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
4591 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
4593 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
4594 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
4598 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
4599 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
4600 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
4601 dnl (else you get "no `Makefile.am' found for any configure output").
4602 dnl This will work, but you get a config.status that is not quite right
4603 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
4604 dnl That doesn't have any obvious consequences for Emacs, but on the whole
4605 dnl it seems better to just live with the duplication.
4606 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"
4608 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
4609 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
4610 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
4611 leim/Makefile nextstep/Makefile])
4613 dnl test/ is not present in release tarfiles.
4614 opt_makefile=test/automated/Makefile
4616 if test -f $srcdir/${opt_makefile}.in; then
4617 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4618 dnl Again, it's best not to use a variable. Though you can add
4619 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
4620 AC_CONFIG_FILES([test/automated/Makefile])
4624 dnl admin/ may or may not be present.
4625 opt_makefile=admin/unidata/Makefile
4627 if test -f $srcdir/${opt_makefile}.in; then
4628 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4629 AC_CONFIG_FILES([admin/unidata/Makefile])
4633 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
4635 AC_SUBST(SUBDIR_MAKEFILES_IN)
4637 dnl Make the necessary directories, if they don't exist.
4638 AC_CONFIG_COMMANDS([mkdirs], [
4639 for dir in etc lisp ; do
4640 test -d ${dir} || mkdir ${dir}
4644 dnl You might wonder (I did) why epaths.h is generated by running make,
4645 dnl rather than just letting configure generate it from epaths.in.
4646 dnl One reason is that the various paths are not fully expanded (see above);
4647 dnl eg gamedir=${prefix}/var/games/emacs.
4648 dnl Secondly, the GNU Coding standards require that one should be able
4649 dnl to run `make prefix=/some/where/else' and override the values set
4650 dnl by configure. This also explains the `move-if-change' test and
4651 dnl the use of force in the `epaths-force' rule in Makefile.in.
4652 AC_CONFIG_COMMANDS([epaths], [
4653 echo creating src/epaths.h
4654 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
4655 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS"])
4657 AC_CONFIG_COMMANDS([gdbinit], [
4658 if test ! -f src/.gdbinit && test -f $srcdir/src/.gdbinit; then
4659 echo creating src/.gdbinit
4660 echo source $srcdir/src/.gdbinit > src/.gdbinit