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, 24.2.50)
26 AC_CONFIG_HEADER(src/config.h:src/config.in)
27 AC_CONFIG_SRCDIR(src/lisp.h)
28 AC_CONFIG_AUX_DIR(build-aux)
29 dnl Fairly arbitrary, older versions might work too.
30 AM_INIT_AUTOMAKE(1.11)
32 dnl Support for --program-prefix, --program-suffix and
33 dnl --program-transform-name options
36 dnl It is important that variables on the RHS not be expanded here,
37 dnl hence the single quotes. This is per the GNU coding standards, see
38 dnl (autoconf) Installation Directory Variables
39 dnl See also epaths.h below.
40 lispdir='${datadir}/emacs/${version}/lisp'
41 leimdir='${datadir}/emacs/${version}/leim'
42 standardlisppath='${lispdir}:${leimdir}'
43 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
44 '${datadir}/emacs/site-lisp'
45 lisppath='${locallisppath}:${standardlisppath}'
46 etcdir='${datadir}/emacs/${version}/etc'
47 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
48 docdir='${datadir}/emacs/${version}/etc'
49 gamedir='${localstatedir}/games/emacs'
51 dnl Special option to disable the most of other options.
53 [AS_HELP_STRING([--without-all],
54 [omit almost all features and build
55 small executable with minimal dependencies])],
56 with_features=$withval,
59 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
60 dnl Create a new --with option that defaults to being disabled.
61 dnl NAME is the base name of the option. The shell variable with_NAME
62 dnl will be set to either the user's value (if the option is
63 dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
64 dnl option is not specified). Note that the shell variable name is
65 dnl constructed as autoconf does, by replacing non-alphanumeric
66 dnl characters with "_".
67 dnl HELP-STRING is the help text for the option.
68 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
69 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
70 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
73 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
74 dnl Create a new --with option that defaults to $enable_features.
75 dnl NAME is the base name of the option. The shell variable with_NAME
76 dnl will be set either to 'no' (for a plain --without-NAME) or to
77 dnl 'yes' (if the option is not specified). Note that the shell
78 dnl variable name is constructed as autoconf does, by replacing
79 dnl non-alphanumeric characters with "_".
80 dnl HELP-STRING is the help text for the option.
81 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
82 AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
83 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=$with_features])dnl
86 OPTION_DEFAULT_ON([pop],[don't support POP mail retrieval with movemail])
87 if test "$with_pop" = yes; then
88 AC_DEFINE(MAIL_USE_POP)
90 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
92 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
93 if test "$with_kerberos" != no; then
97 [Define to support Kerberos-authenticated POP mail retrieval.])dnl
99 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
100 if test "${with_kerberos5}" != no; then
101 if test "${with_kerberos}" = no; then
105 AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
108 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
109 dnl FIXME hesiod support may not be present, so it seems like an error
110 dnl to define, or at least use, this unconditionally.
111 if test "$with_hesiod" != no; then
112 AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
115 OPTION_DEFAULT_OFF([mmdf],[support MMDF mailboxes])
116 if test "$with_mmdf" != no; then
117 AC_DEFINE(MAIL_USE_MMDF, 1, [Define to support MMDF mailboxes in movemail.])
120 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
121 if test "$with_mail_unlink" != no; then
122 AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
125 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
126 [string giving default POP mail host])],
127 AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
129 OPTION_DEFAULT_ON([sound],[don't compile with sound support])
131 dnl FIXME currently it is not the last.
132 dnl This should be the last --with option, because --with-x is
133 dnl added later on when we find the path of X, and it's best to
134 dnl keep them together visually.
135 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
136 [use an X toolkit (KIT one of: yes or gtk, gtk2, gtk3, lucid or athena, motif, no)])],
137 [ case "${withval}" in
138 y | ye | yes ) val=gtk ;;
140 l | lu | luc | luci | lucid ) val=lucid ;;
141 a | at | ath | athe | athen | athena ) val=athena ;;
142 m | mo | mot | moti | motif ) val=motif ;;
143 g | gt | gtk ) val=gtk ;;
147 AC_MSG_ERROR([`--with-x-toolkit=$withval' is invalid;
148 this option's value should be `yes', `no', `lucid', `athena', `motif', `gtk',
149 `gtk2' or `gtk3'. `yes' and `gtk' are synonyms.
150 `athena' and `lucid' are synonyms.])
156 OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit)])
157 if test "$with_wide_int" = yes; then
158 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
161 dnl _ON results in a '--without' option in the --help output, so
162 dnl the help text should refer to "don't compile", etc.
163 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
164 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
165 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
166 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
167 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
168 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
169 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
170 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
172 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
173 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
174 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
176 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
177 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
178 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
179 OPTION_DEFAULT_OFF([ns],[use NeXTstep (Cocoa or GNUstep) windowing system])
180 OPTION_DEFAULT_OFF([w32], [use native MS Windows GUI])
182 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
183 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
184 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
185 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
186 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
187 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
189 ## For the times when you want to build Emacs but don't have
190 ## a suitable makeinfo, and can live without the manuals.
191 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
192 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
194 ## Makefile.in needs the cache file name.
197 ## This is an option because I do not know if all info/man support
198 ## compressed files, nor how to test if they do so.
199 OPTION_DEFAULT_ON([compress-info],[don't compress the installed Info pages])
200 if test $with_compress_info = yes; then
207 AC_ARG_WITH([pkg-config-prog],dnl
208 [AS_HELP_STRING([--with-pkg-config-prog=PATH],
209 [path to pkg-config for finding GTK and librsvg])])
210 if test "X${with_pkg_config_prog}" != X; then
211 if test "${with_pkg_config_prog}" != yes; then
212 PKG_CONFIG="${with_pkg_config_prog}"
217 AC_ARG_WITH([crt-dir],dnl
218 [AS_HELP_STRING([--with-crt-dir=DIR],[directory containing crtn.o etc.
219 The default is /usr/lib, or /usr/lib64 on some platforms.])])
220 CRT_DIR="${with_crt_dir}"
222 AC_ARG_WITH(gameuser,dnl
223 [AS_HELP_STRING([--with-gameuser=USER],[user for shared game score files])])
224 test "X${with_gameuser}" != X && test "${with_gameuser}" != yes \
225 && gameuser="${with_gameuser}"
226 test "X$gameuser" = X && gameuser=games
228 AC_ARG_WITH([gnustep-conf],dnl
229 [AS_HELP_STRING([--with-gnustep-conf=PATH],[path to GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
230 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
231 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
232 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
233 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
235 AC_ARG_ENABLE(ns-self-contained,
236 [AS_HELP_STRING([--disable-ns-self-contained],
237 [disable self contained build under NeXTstep])],
238 EN_NS_SELF_CONTAINED=$enableval,
239 EN_NS_SELF_CONTAINED=yes)
241 AC_ARG_ENABLE(locallisppath,
242 [AS_HELP_STRING([--enable-locallisppath=PATH],
243 [directories Emacs should search for lisp files specific
245 if test "${enableval}" = "no"; then
247 elif test "${enableval}" != "yes"; then
248 locallisppath=${enableval}
251 AC_ARG_ENABLE(checking,
252 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
253 [enable expensive run-time checks. With LIST,
254 enable only specific categories of checks.
255 Categories are: all,yes,no.
256 Flags are: stringbytes, stringoverrun, stringfreelist,
257 xmallocoverrun, conslist, glyphs])],
258 [ac_checking_flags="${enableval}"],[])
259 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
260 for check in $ac_checking_flags
263 # these set all the flags to specific states
264 yes) ac_enable_checking=1 ;;
265 no) ac_enable_checking= ;
266 ac_gc_check_stringbytes= ;
267 ac_gc_check_string_overrun= ;
268 ac_gc_check_string_free_list= ;
269 ac_xmalloc_overrun= ;
270 ac_gc_check_cons_list= ;
272 all) ac_enable_checking=1 ;
273 ac_gc_check_stringbytes=1 ;
274 ac_gc_check_string_overrun=1 ;
275 ac_gc_check_string_free_list=1 ;
276 ac_xmalloc_overrun=1 ;
277 ac_gc_check_cons_list=1 ;
279 # these enable particular checks
280 stringbytes) ac_gc_check_stringbytes=1 ;;
281 stringoverrun) ac_gc_check_string_overrun=1 ;;
282 stringfreelist) ac_gc_check_string_free_list=1 ;;
283 xmallocoverrun) ac_xmalloc_overrun=1 ;;
284 conslist) ac_gc_check_cons_list=1 ;;
285 glyphs) ac_glyphs_debug=1 ;;
286 *) AC_MSG_ERROR(unknown check category $check) ;;
291 if test x$ac_enable_checking != x ; then
292 AC_DEFINE(ENABLE_CHECKING, 1,
293 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
295 if test x$ac_gc_check_stringbytes != x ; then
296 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
297 [Define this temporarily to hunt a bug. If defined, the size of
298 strings is redundantly recorded in sdata structures so that it can
299 be compared to the sizes recorded in Lisp strings.])
301 if test x$ac_gc_check_string_overrun != x ; then
302 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
303 [Define this to check for short string overrun.])
305 if test x$ac_gc_check_string_free_list != x ; then
306 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
307 [Define this to check the string free list.])
309 if test x$ac_xmalloc_overrun != x ; then
310 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
311 [Define this to check for malloc buffer overrun.])
313 if test x$ac_gc_check_cons_list != x ; then
314 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
315 [Define this to check for errors in cons list.])
317 if test x$ac_glyphs_debug != x ; then
318 AC_DEFINE(GLYPH_DEBUG, 1,
319 [Define this to enable glyphs debugging code.])
322 AC_ARG_ENABLE(check-lisp-object-type,
323 [AS_HELP_STRING([--enable-check-lisp-object-type],
324 [enable compile time checks for the Lisp_Object data type.
325 This is useful for development for catching certain types of bugs.])],
326 if test "${enableval}" != "no"; then
327 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
328 [Define this to enable compile time checks for the Lisp_Object data type.])
332 AC_ARG_ENABLE(profiling,
333 [AS_HELP_STRING([--enable-profiling],
334 [build emacs with profiling support.
335 This might not work on all platforms])],
336 [ac_enable_profiling="${enableval}"],[])
337 if test x$ac_enable_profiling != x ; then
338 PROFILING_CFLAGS="-DPROFILING=1 -pg"
342 AC_SUBST(PROFILING_CFLAGS)
344 AC_ARG_ENABLE(autodepend,
345 [AS_HELP_STRING([--enable-autodepend],
346 [automatically generate dependencies to .h-files.
347 Requires GNU Make and Gcc. Enabled if GNU Make and Gcc is
349 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
351 #### Make srcdir absolute, if it isn't already. It's important to
352 #### avoid running the path through pwd unnecessarily, since pwd can
353 #### give you automounter prefixes, which can go away. We do all this
354 #### so Emacs can find its files when run uninstalled.
355 ## Make sure CDPATH doesn't affect cd (in case PWD is relative).
360 ## We may be able to use the $PWD environment variable to make this
361 ## absolute. But sometimes PWD is inaccurate.
362 ## Note: we used to use ${PWD} at the end instead of `pwd`,
363 ## but that tested only for a well-formed and valid PWD,
364 ## it did not object when PWD was well-formed and valid but just wrong.
365 if test ".${PWD}" != "." && test ".`(cd ${PWD} ; sh -c pwd)`" = ".`pwd`" ;
369 srcdir="`(cd ${srcdir}; pwd)`"
372 * ) srcdir="`(cd ${srcdir}; pwd)`" ;;
375 ### Canonicalize the configuration name.
379 configuration=${host_alias-${build_alias-$host}}
381 dnl This used to use changequote, but, apart from `changequote is evil'
382 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
383 dnl the great gob of text. Thus it's not processed for possible expansion.
384 dnl Just make sure the brackets remain balanced.
386 dnl Since Emacs can't find matching pairs of quotes, boundaries are
387 dnl indicated by comments.
391 ### If you add support for a new configuration, add code to this
392 ### switch statement to recognize your configuration name and select
393 ### the appropriate operating system file.
395 ### You would hope that you could choose an s/*.h
396 ### file based on the operating system portion. However, it turns out
397 ### that each s/*.h file is pretty manufacturer-specific.
398 ### So we basically have to have a special case for each
399 ### configuration name.
401 ### As far as handling version numbers on operating systems is
402 ### concerned, make sure things will fail in a fixable way. If
403 ### /etc/MACHINES doesn't say anything about version numbers, be
404 ### prepared to handle anything reasonably. If version numbers
405 ### matter, be sure /etc/MACHINES says something about it.
408 case "${canonical}" in
410 ## GNU/Linux and similar ports
420 ## FreeBSD kernel + glibc based userland
435 ## Apple Darwin / Mac OS X
437 case "${canonical}" in
444 ## Use fink packages if available.
445 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
446 ## if test -d /sw/include && test -d /sw/lib; then
447 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
448 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
452 ## HP 9000 series 700 and 800, running HP/UX
456 hppa*-hp-hpux1[1-9]* )
458 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
462 rs6000-ibm-aix4.[23]* )
465 powerpc-ibm-aix4.[23]* )
468 rs6000-ibm-aix[56]* )
471 powerpc-ibm-aix[56]* )
475 ## Silicon Graphics machines
479 # Without defining _LANGUAGE_C, things get masked out in the headers
480 # so that, for instance, grepping for `free' in stdlib.h fails and
481 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
482 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
487 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
488 | x86_64-*-solaris2* | x86_64-*-sunos5*)
489 case "${canonical}" in
491 amd64-*-*|x86_64-*-*) ;;
495 case "${canonical}" in
496 *-sunos5.6* | *-solaris2.6* )
500 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
502 emacs_check_sunpro_c=yes
504 *-sunos5* | *-solaris* )
506 emacs_check_sunpro_c=yes
509 ## Watch out for a compiler that we know will not work.
510 case "${canonical}" in
511 *-solaris* | *-sunos5* )
512 if [ "x$CC" = x/usr/ucb/cc ]; then
513 ## /usr/ucb/cc doesn't work;
514 ## we should find some other compiler that does work.
522 ## Intel 386 machines where we don't care about the manufacturer.
524 case "${canonical}" in
525 *-cygwin ) opsys=cygwin ;;
526 *-darwin* ) opsys=darwin ;;
527 *-sysv4.2uw* ) opsys=unixware ;;
528 *-sysv5uw* ) opsys=unixware ;;
529 *-sysv5OpenUNIX* ) opsys=unixware ;;
530 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
539 ### If the code above didn't choose an operating system, just choose
540 ### an operating system based on the configuration name. You really
541 ### only want to use this when you have no idea what the right
542 ### operating system is; if you know what operating systems a machine
543 ### runs, it's cleaner to make it explicit in the case statement
545 if test x"${opsys}" = x; then
546 case "${canonical}" in
547 *-gnu* ) opsys=gnu ;;
557 if test $unported = yes; then
558 AC_MSG_ERROR([Emacs hasn't been ported to `${canonical}' systems.
559 Check `etc/MACHINES' for recognized configuration names.])
563 #### Choose a compiler.
565 dnl Sets GCC=yes if using gcc.
569 if test x$GCC = xyes; then
570 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
572 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
575 # Avoid gnulib's tests for O_NOATIME and O_NOFOLLOW, as we don't use them.
576 AC_DEFUN([gl_FCNTL_O_FLAGS])
577 # Avoid gnulib's threadlib module, as we do threads our own way.
578 AC_DEFUN([gl_THREADLIB])
580 # Initialize gnulib right after choosing the compiler.
581 dnl Amongst other things, this sets AR and ARFLAGS.
584 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
585 # if -g3 works and the user does not specify CFLAGS.
586 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
587 if test "$ac_test_CFLAGS" != set; then
590 emacs_g3_CFLAGS='-g3';;
592 emacs_g3_CFLAGS='-g3 -O2';;
596 if test -n "$emacs_g3_CFLAGS"; then
597 emacs_save_CFLAGS=$CFLAGS
598 CFLAGS=$emacs_g3_CFLAGS
599 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
600 [emacs_cv_prog_cc_g3],
601 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
602 [emacs_cv_prog_cc_g3=yes],
603 [emacs_cv_prog_cc_g3=no])])
604 if test $emacs_cv_prog_cc_g3 = yes; then
605 CFLAGS=$emacs_g3_CFLAGS
607 CFLAGS=$emacs_save_CFLAGS
612 AC_ARG_ENABLE([gcc-warnings],
613 [AS_HELP_STRING([--enable-gcc-warnings],
614 [turn on lots of GCC warnings. This is intended for
615 developers, and may generate false alarms when used
616 with older or non-GNU development tools.])],
619 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
621 gl_gcc_warnings=$enableval],
625 AC_ARG_ENABLE(link-time-optimization,
626 [AS_HELP_STRING([--enable-link-time-optimization],
627 [build emacs with link-time optimization.
628 This is supported only for GCC since 4.5.0.])],
629 if test "${enableval}" != "no"; then
630 AC_MSG_CHECKING([whether link-time optimization is supported])
632 if test x$GCC = xyes; then
633 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
634 if test x$CPUS != x; then
640 CFLAGS="$CFLAGS $LTO"
641 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
642 [ac_lto_supported=yes], [ac_lto_supported=no])
645 AC_MSG_RESULT([$ac_lto_supported])
646 if test "$ac_lto_supported" = "yes"; then
647 CFLAGS="$CFLAGS $LTO"
651 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
652 # ------------------------------------------------
653 # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
654 # Otherwise, run RUN-IF-NOT-FOUND.
655 AC_DEFUN([gl_GCC_VERSION_IFELSE],
659 #if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
662 # error "your version of gcc is older than $1.$2"
669 # When compiling with GCC, prefer -isystem to -I when including system
670 # include files, to avoid generating useless diagnostics for the files.
671 if test "$gl_gcc_warnings" != yes; then
676 # This, $nw, is the list of warnings we disable.
679 case $with_x_toolkit in
680 lucid | athena | motif)
681 # Old toolkits mishandle 'const'.
682 nw="$nw -Wwrite-strings"
685 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
688 AC_SUBST([WERROR_CFLAGS])
690 nw="$nw -Waggregate-return" # anachronistic
691 nw="$nw -Wlong-long" # C90 is anachronistic
692 nw="$nw -Wc++-compat" # We don't care about C++ compilers
693 nw="$nw -Wundef" # Warns on '#if GNULIB_FOO' etc in gnulib
694 nw="$nw -Wtraditional" # Warns on #elif which we use often
695 nw="$nw -Wcast-qual" # Too many warnings for now
696 nw="$nw -Wconversion" # Too many warnings for now
697 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
698 nw="$nw -Wsign-conversion" # Too many warnings for now
699 nw="$nw -Woverlength-strings" # Not a problem these days
700 nw="$nw -Wtraditional-conversion" # Too many warnings for now
701 nw="$nw -Wunreachable-code" # so buggy that it's now silently ignored
702 nw="$nw -Wpadded" # Our structs are not padded
703 nw="$nw -Wredundant-decls" # we regularly (re)declare functions
704 nw="$nw -Wlogical-op" # any use of fwrite provokes this
705 nw="$nw -Wformat-nonliteral" # we do this a lot
706 nw="$nw -Wvla" # warnings in gettext.h
707 nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
708 nw="$nw -Wswitch-enum" # Too many warnings for now
709 nw="$nw -Wswitch-default" # Too many warnings for now
710 nw="$nw -Wfloat-equal" # warns about high-quality code
711 nw="$nw -Winline" # OK to ignore 'inline'
712 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
713 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
714 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
716 # Emacs doesn't care about shadowing; see
717 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
720 # The following lines should be removable at some point.
721 nw="$nw -Wstack-protector"
722 nw="$nw -Wstrict-overflow"
723 nw="$nw -Wsuggest-attribute=pure"
725 gl_MANYWARN_ALL_GCC([ws])
726 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
730 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
731 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
732 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
733 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
734 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
735 gl_WARN_ADD([-Wno-format-nonliteral])
737 # In spite of excluding -Wlogical-op above, it is enabled, as of
738 # gcc 4.5.0 20090517.
739 gl_WARN_ADD([-Wno-logical-op])
741 gl_WARN_ADD([-fdiagnostics-show-option])
742 gl_WARN_ADD([-funit-at-a-time])
744 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
745 AH_VERBATIM([FORTIFY_SOURCE],
746 [/* Enable compile-time and run-time bounds-checking, and some warnings,
747 without upsetting glibc 2.15+. */
748 #if defined __OPTIMIZE__ && __OPTIMIZE__
749 # define _FORTIFY_SOURCE 2
752 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
754 # We use a slightly smaller set of warning options for lib/.
755 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
757 nw="$nw -Wunused-macros"
759 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
760 AC_SUBST([GNULIB_WARN_CFLAGS])
765 dnl Some other nice autoconf tests.
766 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
769 dnl if test "x$RANLIB" = x; then
774 AC_PATH_PROG(INSTALL_INFO, install-info, :,
775 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
776 dnl Don't use GZIP, which is used by gzip for additional parameters.
777 AC_PATH_PROG(GZIP_PROG, gzip)
779 if test $opsys = gnu-linux; then
780 AC_PATH_PROG(PAXCTL, paxctl,,
781 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
782 if test "X$PAXCTL" != X; then
783 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
784 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
785 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
786 else AC_MSG_RESULT(no); PAXCTL=""; fi])
790 ## Need makeinfo >= 4.7 (?) to build the manuals.
791 AC_PATH_PROG(MAKEINFO, makeinfo, no)
792 dnl By this stage, configure has already checked for egrep and set EGREP,
793 dnl or exited with an error if no egrep was found.
794 if test "$MAKEINFO" != "no" && \
795 test x"`$MAKEINFO --version 2> /dev/null | $EGREP 'texinfo[[^0-9]]*([[1-4]][[0-9]]+|[[5-9]]|4\.[[7-9]]|4\.[[1-6]][[0-9]]+)'`" = x; then
799 ## Makeinfo is unusual. For a released Emacs, the manuals are
800 ## pre-built, and not deleted by the normal clean rules. makeinfo is
801 ## therefore in the category of "special tools" not normally required, which
802 ## configure does not have to check for (eg autoconf itself).
803 ## In a Bazaar checkout on the other hand, the manuals are not included.
804 ## So makeinfo is a requirement to build from Bazaar, and configure
805 ## should test for it as it does for any other build requirement.
806 ## We use the presence of $srcdir/info/emacs to distinguish a release,
807 ## with pre-built manuals, from a Bazaar checkout.
810 if test "$MAKEINFO" = "no"; then
812 if test "x${with_makeinfo}" = "xno"; then
814 elif test ! -e $srcdir/info/emacs; then
815 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
816 source tree does not seem to have pre-built manuals in the `info' directory.
817 Either install a suitable version of makeinfo, or re-run configure
818 with the `--without-makeinfo' option to build without the manuals.] )
821 AC_SUBST(HAVE_MAKEINFO)
823 dnl Just so that there is only a single place we need to edit.
829 dnl Add our options to ac_link now, after it is set up.
831 if test x$GCC = xyes; then
832 test "x$GCC_LINK_TEST_OPTIONS" != x && \
833 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
835 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
836 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
839 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
840 dnl If we can link with the flag, it shouldn't do any harm anyhow.
841 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
842 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
843 dnl if not built to support GNU ld.
845 late_LDFLAGS=$LDFLAGS
846 if test x$GCC = xyes; then
847 LDFLAGS="$LDFLAGS -Wl,-znocombreloc"
849 LDFLAGS="$LDFLAGS -znocombreloc"
852 AC_MSG_CHECKING([for -znocombreloc])
853 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
854 [AC_MSG_RESULT(yes)],
855 LDFLAGS=$late_LDFLAGS
859 dnl The function dump-emacs will not be defined and temacs will do
860 dnl (load "loadup") automatically unless told otherwise.
861 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
863 your-opsys-here) CANNOT_DUMP=yes ;;
866 test "$CANNOT_DUMP" = "yes" && \
867 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
869 AC_SUBST(CANNOT_DUMP)
874 # MSDOS uses unexcoff.o
875 # MSWindows uses unexw32.o
883 UNEXEC_OBJ=unexmacosx.o
886 UNEXEC_OBJ=unexhp9k800.o
889 # Use the Solaris dldump() function, called from unexsol.c, to dump
890 # emacs, instead of the generic ELF dump code found in unexelf.c.
891 # The resulting binary has a complete symbol table, and is better
892 # for debugging and other observability tools (debuggers, pstack, etc).
894 # If you encounter a problem using dldump(), please consider sending
895 # a message to the OpenSolaris tools-linking mailing list:
896 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
898 # It is likely that dldump() works with older Solaris too, but this has
899 # not been tested, so for now this change is for Solaris 10 or newer.
907 ## Let `ld' find image libs and similar things in /usr/local/lib.
908 ## The system compiler, GCC, has apparently been modified to not
909 ## look there, contrary to what a stock GCC would do.
910 ### It's not our place to do this. See bug#10313#17.
911 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
916 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
917 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
921 ### It's not our place to do this. See bug#10313#17.
922 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
927 ## Han Boetes <han@mijncomputer.nl> says this is necessary,
928 ## otherwise Emacs dumps core on elf systems.
929 LD_SWITCH_SYSTEM="-Z"
932 AC_SUBST(LD_SWITCH_SYSTEM)
934 ac_link="$ac_link $LD_SWITCH_SYSTEM"
936 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
937 ## which has not been defined yet. When this was handled with cpp,
938 ## it was expanded to null when configure sourced the s/*.h file.
939 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
940 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
941 ## (or somesuch), but because it is supposed to go at the _front_
942 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
943 ## Compare with the gnu-linux case below, which added to the end
944 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
945 ## LD_SWITCH_SYSTEM_TEMACS.
948 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
955 AC_CHECK_DECL([__ELF__])
956 if test "$ac_cv_have_decl___ELF__" = "yes"; then
957 ## With ELF, make sure that all common symbols get allocated to in the
958 ## data section. Otherwise, the dump of temacs may miss variables in
959 ## the shared library that have been initialized. For example, with
960 ## GNU libc, __malloc_initialized would normally be resolved to the
961 ## shared library's .bss section, which is fatal.
962 if test "x$GCC" = "xyes"; then
963 C_SWITCH_MACHINE="-fno-common"
965 AC_MSG_ERROR([What gives? Fix me if DEC Unix supports ELF now.])
968 UNEXEC_OBJ=unexalpha.o
972 AC_SUBST(C_SWITCH_MACHINE)
977 ## Some programs in src produce warnings saying certain subprograms
978 ## are too complex and need a MAXMEM value greater than 2000 for
979 ## additional optimization. --nils@exp-math.uni-essen.de
980 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
981 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
982 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
983 ## It is redundant in glibc2, since we define _GNU_SOURCE.
984 AC_SUBST(C_SWITCH_SYSTEM)
989 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
990 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
992 freebsd) LIBS_SYSTEM="-lutil" ;;
994 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
996 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
998 ## Motif needs -lgen.
999 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1001 AC_SUBST(LIBS_SYSTEM)
1004 ### Make sure subsequent tests use flags consistent with the build flags.
1006 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1007 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1009 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1012 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C89 or better.
1013 AC_DEFUN([AC_TYPE_SIZE_T])
1014 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1015 AC_DEFUN([AC_TYPE_UID_T])
1021 dnl Current possibilities handled by sed (aix4-2 -> aix,
1022 dnl gnu-linux -> gnu/linux, etc.):
1023 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1024 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1025 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1027 dnl NB do not use CRT_DIR unquoted here, since it might not be set yet.
1031 START_FILES='pre-crt0.o'
1034 ## Adding -lm confuses the dynamic linker, so omit it.
1036 START_FILES='pre-crt0.o'
1039 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtn.o'
1040 START_FILES='pre-crt0.o $(CRT_DIR)/crt1.o $(CRT_DIR)/crti.o'
1041 SYSTEM_TYPE=berkeley-unix
1043 gnu-linux | gnu-kfreebsd )
1044 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtn.o'
1045 START_FILES='pre-crt0.o $(CRT_DIR)/crt1.o $(CRT_DIR)/crti.o'
1047 hpux10-20 | hpux11 )
1049 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o'
1051 dnl NB this may be adjusted below.
1053 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o'
1054 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o $(CRT_DIR)/crtbegin.o'
1055 SYSTEM_TYPE=berkeley-unix
1059 SYSTEM_TYPE=usg-unix-v
1065 AC_SUBST(START_FILES)
1066 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1067 [The type of system you are compiling for; sets `system-type'.])
1069 dnl Not all platforms use crtn.o files. Check if the current one does.
1072 for file in x $LIB_STANDARD $START_FILES; do
1074 *CRT_DIR*) crt_files="$crt_files `echo $file | sed -e 's|.*/||'`" ;;
1078 if test "x$crt_files" != x; then
1080 ## If user specified a crt-dir, use that unconditionally.
1083 if test "X$CRT_DIR" = "X"; then
1085 CRT_DIR=/usr/lib # default
1087 case "$canonical" in
1088 x86_64-*-linux-gnu* | s390x-*-linux-gnu*)
1089 ## On x86-64 and s390x GNU/Linux distributions, the standard library
1090 ## can be in a variety of places. We only try /usr/lib64 and /usr/lib.
1091 ## For anything else (eg /usr/lib32), it is up the user to specify
1092 ## the location (bug#5655).
1093 ## Test for crtn.o, not just the directory, because sometimes the
1094 ## directory exists but does not have the relevant files (bug#1287).
1095 ## FIXME better to test for binary compatibility somehow.
1096 test -e /usr/lib64/crtn.o && CRT_DIR=/usr/lib64
1099 powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*) CRT_DIR=/usr/lib64 ;;
1103 hpux10-20) CRT_DIR=/lib ;;
1106 test "x${GCC}" = xyes && crt_gcc=yes
1112 for file in $crt_files; do
1114 ## If we're using gcc, try to determine it automatically by asking
1115 ## gcc. [If this doesn't work, CRT_DIR will remain at the
1116 ## system-dependent default from above.]
1117 if test $crt_gcc = yes && test ! -e $CRT_DIR/$file; then
1119 crt_file=`$CC --print-file-name=$file 2>/dev/null`
1122 CRT_DIR=`AS_DIRNAME(["$crt_file"])`
1127 dnl We expect all the files to be in a single directory, so after the
1128 dnl first there is no point asking gcc.
1131 test -e $CRT_DIR/$file || crt_missing="$crt_missing $file"
1134 test "x$crt_missing" = x || \
1135 AC_MSG_ERROR([Required file(s) not found:$crt_missing
1136 Try using the --with-crt-dir option.])
1138 fi # crt_files != ""
1144 if test -f $CRT_DIR/crti.o; then
1146 test -f $CRT_DIR/crtn.o || \
1147 AC_MSG_ERROR([Required file not found: crtn.o])
1149 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o $(CRT_DIR)/crtn.o'
1150 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o $(CRT_DIR)/crti.o $(CRT_DIR)/crtbegin.o'
1156 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1157 pre_PKG_CONFIG_LIBS=$LIBS
1159 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
1161 dnl This function definition taken from Gnome 2.0
1162 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
1163 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
1164 dnl also defines GSTUFF_PKG_ERRORS on error
1165 AC_DEFUN([PKG_CHECK_MODULES], [
1168 if test "$PKG_CONFIG" = "no" ; then
1169 ifelse([$4], , [AC_MSG_ERROR([
1170 *** The pkg-config script could not be found. Make sure it is in your path, or give the full path to pkg-config with the PKG_CONFIG environment variable or --with-pkg-config-prog. Or see http://www.freedesktop.org/software/pkgconfig to get pkg-config.])], [$4])
1172 PKG_CONFIG_MIN_VERSION=0.9.0
1173 if $PKG_CONFIG --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
1174 AC_MSG_CHECKING(for $2)
1176 if $PKG_CONFIG --exists "$2" 2>&AS_MESSAGE_LOG_FD &&
1177 $1_CFLAGS=`$PKG_CONFIG --cflags "$2" 2>&AS_MESSAGE_LOG_FD` &&
1178 $1_LIBS=`$PKG_CONFIG --libs "$2" 2>&AS_MESSAGE_LOG_FD`; then
1185 $1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1186 $1_LIBS=`AS_ECHO(["$$1_LIBS"]) | sed -e 's,///*,/,g'`
1187 AC_MSG_RESULT([yes CFLAGS='$$1_CFLAGS' LIBS='$$1_LIBS'])
1193 ## If we have a custom action on failure, don't print errors, but
1194 ## do set a variable so people can do so. Do it in a subshell
1195 ## to capture any diagnostics in invoking pkg-config.
1196 $1_PKG_ERRORS=`($PKG_CONFIG --print-errors "$2") 2>&1`
1197 ifelse([$4], ,echo "$$1_PKG_ERRORS",)
1203 echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
1204 echo "*** See http://www.freedesktop.org/software/pkgconfig"
1208 if test $succeeded = yes; then
1209 ifelse([$3], , :, [$3])
1211 ifelse([$4], , [AC_MSG_ERROR([Library requirements ($2) not met; consider adjusting the PKG_CONFIG_PATH environment variable if your libraries are in a nonstandard prefix so pkg-config can find them.])], [$4])
1216 if test "${with_sound}" != "no"; then
1217 # Sound support for GNU/Linux and the free BSDs.
1218 AC_CHECK_HEADERS(machine/soundcard.h sys/soundcard.h soundcard.h,
1219 have_sound_header=yes)
1220 # Emulation library used on NetBSD.
1221 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1225 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1226 PKG_CHECK_MODULES(ALSA, $ALSA_MODULES, HAVE_ALSA=yes, HAVE_ALSA=no)
1227 if test $HAVE_ALSA = yes; then
1228 SAVE_CFLAGS="$CFLAGS"
1230 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1231 LIBS="$ALSA_LIBS $LIBS"
1232 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1233 emacs_alsa_normal=yes,
1234 emacs_alsa_normal=no)
1235 if test "$emacs_alsa_normal" != yes; then
1236 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1237 [[snd_lib_error_set_handler (0);]])],
1238 emacs_alsa_subdir=yes,
1239 emacs_alsa_subdir=no)
1240 if test "$emacs_alsa_subdir" != yes; then
1241 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1243 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1246 CFLAGS="$SAVE_CFLAGS"
1248 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1249 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1250 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1253 dnl Define HAVE_SOUND if we have sound support. We know it works and
1254 dnl compiles only on the specified platforms. For others, it
1255 dnl probably doesn't make sense to try.
1256 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1258 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1259 gnu-linux|freebsd|netbsd)
1260 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1265 AC_SUBST(CFLAGS_SOUND)
1268 dnl checks for header files
1269 AC_CHECK_HEADERS_ONCE(
1270 linux/version.h sys/systeminfo.h
1271 stdio_ext.h fcntl.h coff.h pty.h
1272 sys/vlimit.h sys/resource.h
1273 sys/utsname.h pwd.h utmp.h dirent.h util.h)
1275 AC_MSG_CHECKING(if personality LINUX32 can be set)
1276 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1277 emacs_cv_personality_linux32=yes,
1278 emacs_cv_personality_linux32=no)
1279 AC_MSG_RESULT($emacs_cv_personality_linux32)
1281 if test $emacs_cv_personality_linux32 = yes; then
1282 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1283 [Define to 1 if personality LINUX32 can be set.])
1286 dnl On Solaris 8 there's a compilation warning for term.h because
1287 dnl it doesn't define `bool'.
1288 AC_CHECK_HEADERS(term.h, , , -)
1290 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1292 if test $ac_cv_have_decl_sys_siglist != yes; then
1293 # For Tru64, at least:
1294 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1296 if test $ac_cv_have_decl___sys_siglist = yes; then
1297 AC_DEFINE(sys_siglist, __sys_siglist,
1298 [Define to any substitute for sys_siglist.])
1303 dnl Check for speed_t typedef.
1304 AC_CACHE_CHECK(for speed_t, emacs_cv_speed_t,
1305 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <termios.h>]], [[speed_t x = 1;]])],
1306 emacs_cv_speed_t=yes, emacs_cv_speed_t=no)])
1307 if test $emacs_cv_speed_t = yes; then
1308 AC_DEFINE(HAVE_SPEED_T, 1,
1309 [Define to 1 if `speed_t' is declared by <termios.h>.])
1312 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1313 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1314 #if HAVE_SYS_SOCKET_H
1315 #include <sys/socket.h>
1317 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1318 #if HAVE_SYS_SOCKET_H
1319 #include <sys/socket.h>
1321 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1322 #if HAVE_SYS_SOCKET_H
1323 #include <sys/socket.h>
1326 dnl checks for structure members
1327 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1328 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1329 struct ifreq.ifr_addr,
1330 struct ifreq.ifr_addr.sa_len], , ,
1331 [AC_INCLUDES_DEFAULT
1332 #if HAVE_SYS_SOCKET_H
1333 #include <sys/socket.h>
1339 dnl Check for endianness.
1340 dnl AC_C_BIGENDIAN is done by gnulib.
1342 dnl check for Make feature
1343 dnl AC_PROG_MAKE_SET is done by Automake.
1348 dnl check for GNU Make if we have GCC and autodepend is on.
1349 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1350 AC_MSG_CHECKING([whether we are using GNU Make])
1352 testval=`${MAKE-make} --version 2>/dev/null | grep 'GNU Make'`
1353 if test "x$testval" != x; then
1356 ac_enable_autodepend=no
1358 AC_MSG_RESULT([$HAVE_GNU_MAKE])
1359 if test $HAVE_GNU_MAKE = yes; then
1360 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1361 SAVE_CFLAGS="$CFLAGS"
1362 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1363 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1364 CFLAGS="$SAVE_CFLAGS"
1365 test -f deps.d || ac_enable_autodepend=no
1367 AC_MSG_RESULT([$ac_enable_autodepend])
1369 if test $ac_enable_autodepend = yes; then
1370 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1371 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1372 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1373 deps_frag=autodeps.mk
1376 deps_frag=$srcdir/src/$deps_frag
1379 AC_SUBST_FILE(deps_frag)
1382 lisp_frag=$srcdir/src/lisp.mk
1383 AC_SUBST_FILE(lisp_frag)
1386 dnl checks for operating system services
1387 AC_SYS_LONG_FILE_NAMES
1389 #### Choose a window system.
1391 ## We leave window_system equal to none if
1392 ## we end up building without one. Any new window system should
1393 ## set window_system to an appropriate value and add objects to
1394 ## window-system-specific substs.
1398 if test "$no_x" != yes; then
1402 LD_SWITCH_X_SITE_RPATH=
1403 if test "${x_libraries}" != NONE; then
1404 if test -n "${x_libraries}"; then
1405 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1406 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1408 x_default_search_path=""
1409 x_search_path=${x_libraries}
1410 if test -z "${x_search_path}"; then
1411 x_search_path=/usr/lib
1413 for x_library in `echo ${x_search_path}: | \
1414 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1416 ${x_library}/X11/%L/%T/%N%C%S:\
1417 ${x_library}/X11/%l/%T/%N%C%S:\
1418 ${x_library}/X11/%T/%N%C%S:\
1419 ${x_library}/X11/%L/%T/%N%S:\
1420 ${x_library}/X11/%l/%T/%N%S:\
1421 ${x_library}/X11/%T/%N%S"
1422 if test x"${x_default_search_path}" = x; then
1423 x_default_search_path=${x_search_path}
1425 x_default_search_path="${x_search_path}:${x_default_search_path}"
1429 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1431 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1432 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1435 if test x"${x_includes}" = x; then
1436 bitmapdir=/usr/include/X11/bitmaps
1438 # accumulate include directories that have X11 bitmap subdirectories
1440 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1441 if test -d "${bmd}/X11/bitmaps"; then
1442 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1444 if test -d "${bmd}/bitmaps"; then
1445 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1448 if test ${bmd_acc} != "dummyval"; then
1449 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1456 tmp_CPPFLAGS="$CPPFLAGS"
1457 tmp_CFLAGS="$CFLAGS"
1458 CPPFLAGS="$CPPFLAGS -x objective-c"
1459 CFLAGS="$CFLAGS -x objective-c"
1460 TEMACS_LDFLAGS2="\${LDFLAGS}"
1462 if test "${with_ns}" != no; then
1463 if test "${opsys}" = darwin; then
1465 ns_appdir=`pwd`/nextstep/Emacs.app
1466 ns_appbindir=${ns_appdir}/Contents/MacOS
1467 ns_appresdir=${ns_appdir}/Contents/Resources
1468 ns_appsrc=Cocoa/Emacs.base
1469 elif test -f $GNUSTEP_CONFIG_FILE; then
1471 ns_appdir=`pwd`/nextstep/Emacs.app
1472 ns_appbindir=${ns_appdir}
1473 ns_appresdir=${ns_appdir}/Resources
1474 ns_appsrc=GNUstep/Emacs.base
1475 dnl FIXME sourcing this several times in subshells seems inefficient.
1476 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1477 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1478 dnl I seemed to need these as well with GNUstep-startup 0.25.
1479 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1480 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1481 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1482 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1483 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1484 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1485 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1486 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1487 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1491 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1492 dnl If they had chosen to either define it or not, we could have
1493 dnl just used AC_CHECK_DECL here.
1494 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1495 emacs_cv_objc_exceptions,
1496 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1497 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1501 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1502 if test $emacs_cv_objc_exceptions = yes; then
1503 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1504 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1505 [Define if GNUstep uses ObjC exceptions.])
1506 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1510 dnl This is only used while we test the NS headers, it gets reset below.
1511 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1513 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1514 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1515 files are missing or cannot be compiled.])])
1517 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1519 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1520 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
1523 #error "OSX 10.4 or newer required"
1527 ns_osx_have_104=yes,
1529 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1531 ns_have_nsinteger=yes,
1532 ns_have_nsinteger=no)
1533 if test $ns_osx_have_104 = no; then
1534 AC_MSG_ERROR([`OSX 10.4 or newer is required']);
1536 if test $ns_have_nsinteger = yes; then
1537 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1541 AC_SUBST(TEMACS_LDFLAGS2)
1543 INSTALL_ARCH_INDEP_EXTRA=install-etc
1544 ns_self_contained=no
1547 if test "${HAVE_NS}" = yes; then
1548 if test "$with_toolkit_scroll_bars" = "no"; then
1549 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1552 window_system=nextstep
1553 # set up packaging dirs
1554 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1555 ns_self_contained=yes
1556 prefix=${ns_appresdir}
1557 exec_prefix=${ns_appbindir}
1558 dnl This one isn't really used, only archlibdir is.
1559 libexecdir="\${ns_appbindir}/libexec"
1560 archlibdir="\${ns_appbindir}/libexec"
1561 docdir="\${ns_appresdir}/etc"
1562 etcdir="\${ns_appresdir}/etc"
1563 dnl FIXME maybe set datarootdir instead.
1564 dnl That would also get applications, icons, man.
1565 infodir="\${ns_appresdir}/info"
1566 mandir="\${ns_appresdir}/man"
1567 lispdir="\${ns_appresdir}/lisp"
1568 leimdir="\${ns_appresdir}/leim"
1569 INSTALL_ARCH_INDEP_EXTRA=
1571 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o"
1573 CFLAGS="$tmp_CFLAGS"
1574 CPPFLAGS="$tmp_CPPFLAGS"
1575 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1576 AC_SUBST(ns_self_contained)
1578 AC_SUBST(NS_OBJC_OBJ)
1579 AC_SUBST(LIB_STANDARD)
1584 if test "${with_w32}" != no; then
1585 if test "${opsys}" != "cygwin"; then
1586 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin.])
1588 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1589 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1590 cannot be found.])])
1591 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1592 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1593 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1594 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1595 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1600 if test "${HAVE_W32}" = "yes"; then
1605 ## $window_system is now set to the window system we will
1613 case "${window_system}" in
1618 case "${with_x_toolkit}" in
1619 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1620 motif ) USE_X_TOOLKIT=MOTIF ;;
1622 term_header=gtkutil.h
1623 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1624 dnl USE_X_TOOLKIT is set.
1625 USE_X_TOOLKIT=none ;;
1626 gtk2 ) with_gtk2=yes
1627 term_header=gtkutil.h
1628 USE_X_TOOLKIT=none ;;
1629 gtk3 ) with_gtk3=yes
1630 term_header=gtkutil.h
1631 USE_X_TOOLKIT=none ;;
1632 no ) USE_X_TOOLKIT=none ;;
1633 dnl If user did not say whether to use a toolkit, make this decision later:
1634 dnl use the toolkit if we have gtk, or X11R5 or newer.
1635 * ) USE_X_TOOLKIT=maybe ;;
1639 term_header=nsterm.h
1642 term_header=w32term.h
1646 if test -n "${term_header}"; then
1647 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
1648 [Define to the header for the built-in window system.])
1651 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1652 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1653 if test "$HAVE_XSERVER" = true ||
1654 test -n "$DISPLAY" ||
1655 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1656 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1657 were found. You should install the relevant development files for X
1658 and for the toolkit you want, such as Gtk+, Lesstif or Motif. Also make
1659 sure you have development files for image handling, i.e.
1660 tiff, gif, jpeg, png and xpm.
1661 If you are sure you want Emacs compiled without X window support, pass
1667 ### If we're using X11, we should use the X menu package.
1670 yes ) HAVE_MENUS=yes ;;
1673 # Does the opsystem file prohibit the use of the GNU malloc?
1674 # Assume not, until told otherwise.
1678 [whether malloc is Doug Lea style],
1679 [emacs_cv_var_doug_lea_malloc],
1682 [[#include <malloc.h>
1683 static void hook (void) {}]],
1684 [[malloc_set_state (malloc_get_state ());
1685 __after_morecore_hook = hook;
1686 __malloc_initialize_hook = hook;]])],
1687 [emacs_cv_var_doug_lea_malloc=yes],
1688 [emacs_cv_var_doug_lea_malloc=no])])
1689 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1692 dnl See comments in aix4-2.h about maybe using system malloc there.
1695 ## darwin ld insists on the use of malloc routines in the System framework.
1696 darwin|sol2-10) system_malloc=yes ;;
1699 if test "${system_malloc}" = "yes"; then
1700 AC_DEFINE(SYSTEM_MALLOC, 1, [Define to use system malloc.])
1703 (The GNU allocators don't work with this system configuration.)"
1707 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1708 VMLIMIT_OBJ=vm-limit.o
1710 AC_SUBST(GMALLOC_OBJ)
1711 AC_SUBST(VMLIMIT_OBJ)
1713 if test "$doug_lea_malloc" = "yes" ; then
1714 if test "$GNU_MALLOC" = yes ; then
1716 (Using Doug Lea's new malloc from the GNU C Library.)"
1718 AC_DEFINE(DOUG_LEA_MALLOC, 1,
1719 [Define to 1 if you are using the GNU C Library.])
1721 ## Use mmap directly for allocating larger buffers.
1722 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
1723 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
1724 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
1726 gnu*) REL_ALLOC=no ;;
1730 if test x"${REL_ALLOC}" = x; then
1731 REL_ALLOC=${GNU_MALLOC}
1734 use_mmap_for_buffers=no
1736 cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
1740 if test $use_mmap_for_buffers = yes; then
1741 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
1745 LIBS="$LIBS_SYSTEM $LIBS"
1747 dnl If found, this defines HAVE_LIBDNET, which m/pmax.h checks,
1748 dnl and also adds -ldnet to LIBS, which Autoconf uses for checks.
1749 AC_CHECK_LIB(dnet, dnet_ntoa)
1750 dnl This causes -lresolv to get used in subsequent tests,
1751 dnl which causes failures on some systems such as HPUX 9.
1752 dnl AC_CHECK_LIB(resolv, gethostbyname)
1754 dnl FIXME replace main with a function we actually want from this library.
1755 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
1757 dnl Check if pthreads is available.
1759 AC_CHECK_HEADERS_ONCE(pthread.h)
1760 if test "$ac_cv_header_pthread_h"; then
1761 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
1762 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
1763 dnl testing for pthread_self if Emacs uses gmalloc.c.
1764 if test "$GMALLOC_OBJ" = gmalloc.o; then
1765 emacs_pthread_function=pthread_atfork
1767 emacs_pthread_function=pthread_self
1769 AC_CHECK_LIB(pthread, $emacs_pthread_function, HAVE_PTHREAD=yes)
1771 if test "$HAVE_PTHREAD" = yes; then
1772 case "${canonical}" in
1774 *) LIB_PTHREAD="-lpthread"
1775 LIBS="$LIB_PTHREAD $LIBS" ;;
1777 AC_DEFINE(HAVE_PTHREAD, 1, [Define to 1 if you have pthread (-lpthread).])
1779 AC_SUBST([LIB_PTHREAD])
1781 AC_CHECK_LIB(pthreads, cma_open)
1783 ## Note: when using cpp in s/aix4.2.h, this definition depended on
1784 ## HAVE_LIBPTHREADS. That was not defined earlier in configure when
1785 ## the system file was sourced. Hence the value of LIBS_SYSTEM
1786 ## added to LIBS in configure would never contain the pthreads part,
1787 ## but the value used in Makefiles might. FIXME?
1789 ## -lpthreads seems to be necessary for Xlib in X11R6, and should
1790 ## be harmless on older versions of X where it happens to exist.
1791 test "$opsys" = "aix4-2" && \
1792 test $ac_cv_lib_pthreads_cma_open = yes && \
1793 LIBS_SYSTEM="$LIBS_SYSTEM -lpthreads"
1795 dnl Check for need for bigtoc support on IBM AIX
1799 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1801 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1802 *) gdb_cv_bigtoc=-bbigtoc ;;
1805 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1806 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
1811 # Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
1812 # used for the tests that follow. We set them back to REAL_CFLAGS and
1813 # REAL_CPPFLAGS later on.
1815 REAL_CFLAGS="$CFLAGS"
1816 REAL_CPPFLAGS="$CPPFLAGS"
1818 if test "${HAVE_X11}" = "yes"; then
1819 DEFS="$C_SWITCH_X_SITE $DEFS"
1820 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
1822 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
1823 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
1825 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
1826 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
1827 # but it's more convenient here to set LD_RUN_PATH since this
1828 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
1829 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
1830 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
1834 if test "${opsys}" = "gnu-linux"; then
1835 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
1836 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1837 [[XOpenDisplay ("foo");]])],
1838 [xgnu_linux_first_failure=no],
1839 [xgnu_linux_first_failure=yes])
1840 if test "${xgnu_linux_first_failure}" = "yes"; then
1841 OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
1842 OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
1843 OLD_CPPFLAGS="$CPPFLAGS"
1845 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
1846 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
1847 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
1848 LIBS="$LIBS -b i486-linuxaout"
1849 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1850 [[XOpenDisplay ("foo");]])],
1851 [xgnu_linux_second_failure=no],
1852 [xgnu_linux_second_failure=yes])
1853 if test "${xgnu_linux_second_failure}" = "yes"; then
1854 # If we get the same failure with -b, there is no use adding -b.
1855 # So take it out. This plays safe.
1856 LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
1857 C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
1858 CPPFLAGS="$OLD_CPPFLAGS"
1869 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
1870 # header files included from there.
1871 AC_MSG_CHECKING(for Xkb)
1872 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
1873 #include <X11/XKBlib.h>]],
1874 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
1875 emacs_xkb=yes, emacs_xkb=no)
1876 AC_MSG_RESULT($emacs_xkb)
1877 if test $emacs_xkb = yes; then
1878 AC_DEFINE(HAVE_XKBGETKEYBOARD, 1, [Define to 1 if you have the XkbGetKeyboard function.])
1881 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
1882 XScreenNumberOfScreen)
1885 if test "${window_system}" = "x11"; then
1886 AC_MSG_CHECKING(X11 version 6)
1887 AC_CACHE_VAL(emacs_cv_x11_version_6,
1888 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
1889 [[#if XlibSpecificationRelease < 6
1892 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
1893 if test $emacs_cv_x11_version_6 = yes; then
1894 AC_MSG_RESULT(6 or newer)
1895 AC_DEFINE(HAVE_X11R6, 1,
1896 [Define to 1 if you have the X11R6 or newer version of Xlib.])
1897 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
1898 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
1902 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
1903 [Define if you have usable X11R6-style XIM support.])
1907 AC_MSG_RESULT(before 6)
1912 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
1914 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes"; then
1915 if test "${with_rsvg}" != "no"; then
1916 RSVG_REQUIRED=2.11.0
1917 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
1919 PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, HAVE_RSVG=yes, :)
1920 AC_SUBST(RSVG_CFLAGS)
1923 if test $HAVE_RSVG = yes; then
1924 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
1925 CFLAGS="$CFLAGS $RSVG_CFLAGS"
1926 LIBS="$RSVG_LIBS $LIBS"
1932 if test "${HAVE_X11}" = "yes"; then
1933 if test "${with_imagemagick}" != "no"; then
1934 ## 6.2.8 is the earliest version known to work, but earlier versions
1935 ## might work - let us know if you find one.
1936 ## 6.0.7 does not work. See bug#7955.
1937 IMAGEMAGICK_MODULE="Wand >= 6.2.8"
1938 PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
1939 AC_SUBST(IMAGEMAGICK_CFLAGS)
1940 AC_SUBST(IMAGEMAGICK_LIBS)
1942 if test $HAVE_IMAGEMAGICK = yes; then
1943 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
1944 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
1945 LIBS="$IMAGEMAGICK_LIBS $LIBS"
1946 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
1956 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
1959 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1961 dnl Checks for libraries.
1962 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1963 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
1964 AC_MSG_ERROR($GTK_PKG_ERRORS)
1966 if test "$pkg_check_gtk" = "yes"; then
1967 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
1968 GTK_OBJ=emacsgtkfixed.o
1969 term_header=gtkutil.h
1970 USE_GTK_TOOLKIT="GTK3"
1973 gtk3_pkg_errors="$GTK_PKG_ERRORS "
1977 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
1980 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1982 dnl Checks for libraries.
1983 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1984 if test "$pkg_check_gtk" = "no" &&
1985 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
1987 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
1989 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
1992 if test x"$pkg_check_gtk" = xyes; then
1994 AC_SUBST(GTK_CFLAGS)
1996 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
1997 CFLAGS="$CFLAGS $GTK_CFLAGS"
1998 LIBS="$GTK_LIBS $LIBS"
1999 dnl Try to compile a simple GTK program.
2001 AC_CHECK_FUNCS(gtk_main, GTK_COMPILES=yes)
2002 if test "${GTK_COMPILES}" != "yes"; then
2003 if test "$USE_X_TOOLKIT" != "maybe"; then
2004 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2008 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2009 GTK_OBJ="gtkutil.o $GTK_OBJ"
2011 if $PKG_CONFIG --atleast-version=2.10 gtk+-2.0; then
2014 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2015 closing open displays. This is no problem if you just use
2016 one display, but if you use more than one and close one of them
2026 if test "${HAVE_GTK}" = "yes"; then
2028 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2029 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2030 if test "$with_toolkit_scroll_bars" != no; then
2031 with_toolkit_scroll_bars=yes
2034 dnl Check if we have the old file selection dialog declared and
2035 dnl in the link library. In 2.x it may be in the library,
2036 dnl but not declared if deprecated featured has been selected out.
2037 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2038 HAVE_GTK_FILE_SELECTION=no
2039 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2040 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2041 #include <gtk/gtk.h>])
2042 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2043 AC_CHECK_FUNCS(gtk_file_selection_new)
2047 dnl Check for functions introduced in 2.14 and later.
2048 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2049 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2050 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2051 gtk_orientable_set_orientation \
2052 gtk_window_set_has_resize_grip)
2054 term_header=gtkutil.h
2057 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2058 dnl other platforms.
2061 if test "${with_dbus}" = "yes"; then
2062 PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
2063 if test "$HAVE_DBUS" = yes; then
2064 LIBS="$LIBS $DBUS_LIBS"
2065 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2066 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2067 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2069 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2070 dbus_type_is_valid \
2071 dbus_validate_bus_name \
2072 dbus_validate_path \
2073 dbus_validate_interface \
2074 dbus_validate_member)
2080 dnl GSettings has been tested under GNU/Linux only.
2082 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2083 PKG_CHECK_MODULES(GSETTINGS, gio-2.0 >= 2.26, HAVE_GSETTINGS=yes, HAVE_GSETTINGS=no)
2084 if test "$HAVE_GSETTINGS" = "yes"; then
2085 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2086 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2087 SETTINGS_LIBS="$GSETTINGS_LIBS"
2091 dnl GConf has been tested under GNU/Linux only.
2092 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2094 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2095 PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
2096 if test "$HAVE_GCONF" = yes; then
2097 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2098 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2099 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2100 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2104 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2105 PKG_CHECK_MODULES(GOBJECT, gobject-2.0 >= 2.0, HAVE_GOBJECT=yes, HAVE_GOBJECT=no)
2106 if test "$HAVE_GOBJECT" = "yes"; then
2107 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2108 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2110 SAVE_CFLAGS="$CFLAGS"
2112 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2113 LIBS="$SETTINGS_LIBS $LIBS"
2114 AC_CHECK_FUNCS([g_type_init])
2115 CFLAGS="$SAVE_CFLAGS"
2118 AC_SUBST(SETTINGS_CFLAGS)
2119 AC_SUBST(SETTINGS_LIBS)
2122 dnl SELinux is available for GNU/Linux only.
2125 if test "${with_selinux}" = "yes"; then
2126 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2127 if test "$HAVE_LIBSELINUX" = yes; then
2128 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2129 LIBSELINUX_LIBS=-lselinux
2132 AC_SUBST(LIBSELINUX_LIBS)
2135 HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=no
2136 if test "${with_gnutls}" = "yes" ; then
2137 PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6], HAVE_GNUTLS=yes, HAVE_GNUTLS=no)
2138 if test "${HAVE_GNUTLS}" = "yes"; then
2139 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2142 CFLAGS="$CFLAGS $LIBGNUTLS_CFLAGS"
2143 LIBS="$LIBGNUTLS_LIBS $LIBS"
2144 AC_CHECK_FUNCS(gnutls_certificate_set_verify_function, HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=yes)
2146 if test "${HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY}" = "yes"; then
2147 AC_DEFINE(HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY, 1, [Define if using GnuTLS certificate verification callbacks.])
2151 AC_SUBST(LIBGNUTLS_LIBS)
2152 AC_SUBST(LIBGNUTLS_CFLAGS)
2154 dnl Do not put whitespace before the #include statements below.
2155 dnl Older compilers (eg sunos4 cc) choke on it.
2158 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2159 if test "$with_xaw3d" != no; then
2160 AC_CACHE_VAL(emacs_cv_xaw3d,
2161 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2162 #include <X11/Intrinsic.h>
2163 #include <X11/Xaw3d/Simple.h>]],
2165 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2166 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2167 emacs_cv_xaw3d=no)])
2171 if test $emacs_cv_xaw3d = yes; then
2172 AC_MSG_CHECKING(for xaw3d)
2173 AC_MSG_RESULT([yes; using Lucid toolkit])
2177 AC_DEFINE(HAVE_XAW3D, 1,
2178 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2180 AC_MSG_CHECKING(for xaw3d)
2182 AC_MSG_CHECKING(for libXaw)
2183 AC_CACHE_VAL(emacs_cv_xaw,
2184 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2185 #include <X11/Intrinsic.h>
2186 #include <X11/Xaw/Simple.h>]],
2190 if test $emacs_cv_xaw = yes; then
2191 AC_MSG_RESULT([yes; using Lucid toolkit])
2194 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2195 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2197 AC_MSG_ERROR([No X toolkit could be found.
2198 If you are sure you want Emacs compiled without an X toolkit, pass
2200 to configure. Otherwise, install the development libraries for the toolkit
2201 that you want to use (e.g. Gtk+) and re-run configure.])
2206 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2209 if test "${USE_X_TOOLKIT}" != "none"; then
2210 AC_MSG_CHECKING(X11 toolkit version)
2211 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2212 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2213 [[#if XtSpecificationRelease < 6
2216 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2217 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2218 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2219 AC_MSG_RESULT(6 or newer)
2220 AC_DEFINE(HAVE_X11XTR6, 1,
2221 [Define to 1 if you have the X11R6 or newer version of Xt.])
2222 LIBXTR6="-lSM -lICE"
2224 ## Use libw.a along with X11R6 Xt.
2225 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2228 AC_MSG_RESULT(before 6)
2231 dnl If using toolkit, check whether libXmu.a exists.
2232 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2234 if test x$HAVE_X11XTR6 = xyes; then
2235 LIBS="-lXt -lSM -lICE $LIBS"
2239 AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
2240 test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
2241 dnl ac_cv_lib_Xmu_XmuConvertStandardSelection is also referenced below.
2245 dnl FIXME the logic here seems weird, but this is what cpp was doing.
2246 dnl Why not just test for libxmu in the normal way?
2249 ## These systems don't supply Xmu.
2251 test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
2256 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
2257 if test "${HAVE_X11}" = "yes"; then
2258 if test "${USE_X_TOOLKIT}" != "none"; then
2259 AC_CHECK_LIB(Xext, XShapeQueryExtension)
2264 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2265 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2266 if test -d /usr/include/openmotif; then
2267 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2268 emacs_cv_openmotif=yes
2269 case "$canonical" in
2270 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2271 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2274 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2277 emacs_cv_openmotif=no
2279 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2280 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2281 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2284 Motif version prior to 2.1.
2286 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2287 if test $emacs_cv_motif_version_2_1 = yes; then
2288 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2289 if test x$emacs_cv_openmotif = xyes; then
2290 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2293 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2294 # We put this in CFLAGS temporarily to precede other -I options
2295 # that might be in CFLAGS temporarily.
2296 # We put this in CPPFLAGS where it precedes the other -I options.
2297 OLD_CPPFLAGS=$CPPFLAGS
2299 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2300 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2301 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2303 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2304 if test $emacs_cv_lesstif = yes; then
2305 # Make sure this -I option remains in CPPFLAGS after it is set
2306 # back to REAL_CPPFLAGS.
2307 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2308 # have those other -I options anyway. Ultimately, having this
2309 # directory ultimately in CPPFLAGS will be enough.
2310 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2311 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2314 CPPFLAGS=$OLD_CPPFLAGS
2317 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2318 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2321 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2322 dnl using Motif or Xaw3d is available, and unless
2323 dnl --with-toolkit-scroll-bars=no was specified.
2325 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2326 [Define to 1 if we should use toolkit scroll bars.])dnl
2327 USE_TOOLKIT_SCROLL_BARS=no
2328 if test "${with_toolkit_scroll_bars}" != "no"; then
2329 if test "${USE_X_TOOLKIT}" != "none"; then
2330 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2331 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2333 USE_TOOLKIT_SCROLL_BARS=yes
2334 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2335 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2336 USE_TOOLKIT_SCROLL_BARS=yes
2338 elif test "${HAVE_GTK}" = "yes"; then
2339 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2340 USE_TOOLKIT_SCROLL_BARS=yes
2341 elif test "${HAVE_NS}" = "yes"; then
2342 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2343 USE_TOOLKIT_SCROLL_BARS=yes
2344 elif test "${HAVE_W32}" = "yes"; then
2345 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2346 USE_TOOLKIT_SCROLL_BARS=yes
2350 dnl See if XIM is available.
2351 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2352 #include <X11/Xlib.h>
2353 #include <X11/Xresource.h>]],
2354 [[XIMProc callback;]])],
2356 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2359 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2361 if test "${with_xim}" != "no"; then
2362 AC_DEFINE(USE_XIM, 1,
2363 [Define to 1 if we should use XIM, if it is available.])
2367 if test "${HAVE_XIM}" != "no"; then
2369 if test "$GCC" = yes; then
2370 CFLAGS="$CFLAGS --pedantic-errors"
2372 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2373 #include <X11/Xlib.h>
2374 #include <X11/Xresource.h>]],
2380 XPointer *client_data;
2382 /* If we're not using GCC, it's probably not XFree86, and this is
2383 probably right, but we can't use something like --pedantic-errors. */
2384 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2385 char*, XIMProc, XPointer*);
2387 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2389 [emacs_cv_arg6_star=yes])
2390 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2391 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2392 either XPointer or XPointer*.])dnl
2393 if test "$emacs_cv_arg6_star" = yes; then
2394 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2396 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2401 ### Start of font-backend (under any platform) section.
2402 # (nothing here yet -- this is a placeholder)
2403 ### End of font-backend (under any platform) section.
2405 ### Start of font-backend (under X11) section.
2406 if test "${HAVE_X11}" = "yes"; then
2407 PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
2409 ## Use -lXft if available, unless `--with-xft=no'.
2411 if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2414 if test "x${with_xft}" != "xno"; then
2416 PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
2417 ## Because xftfont.c uses XRenderQueryExtension, we also
2418 ## need to link to -lXrender.
2420 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2421 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2422 OLD_CPPFLAGS="$CPPFLAGS"
2423 OLD_CFLAGS="$CFLAGS"
2425 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2426 CFLAGS="$CFLAGS $XFT_CFLAGS"
2427 XFT_LIBS="-lXrender $XFT_LIBS"
2428 LIBS="$XFT_LIBS $LIBS"
2429 AC_CHECK_HEADER(X11/Xft/Xft.h,
2430 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS))
2432 if test "${HAVE_XFT}" = "yes"; then
2433 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2435 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2437 CPPFLAGS="$OLD_CPPFLAGS"
2438 CFLAGS="$OLD_CFLAGS"
2440 fi # "${HAVE_XFT}" = "yes"
2441 fi # "$HAVE_XFT" != no
2442 fi # "x${with_xft}" != "xno"
2444 ## We used to allow building with FreeType and without Xft.
2445 ## However, the ftx font backend driver is not in good shape.
2446 if test "$HAVE_XFT" != "yes"; then
2447 dnl For the "Does Emacs use" message at the end.
2451 dnl Strict linkers fail with
2452 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2453 dnl if -lfreetype is not specified.
2454 dnl The following is needed to set FREETYPE_LIBS.
2455 PKG_CHECK_MODULES(FREETYPE, freetype2, HAVE_FREETYPE=yes,
2458 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2462 if test "${HAVE_FREETYPE}" = "yes"; then
2463 AC_DEFINE(HAVE_FREETYPE, 1,
2464 [Define to 1 if using the freetype and fontconfig libraries.])
2465 if test "${with_libotf}" != "no"; then
2466 PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
2468 if test "$HAVE_LIBOTF" = "yes"; then
2469 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2470 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2471 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2472 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2473 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2474 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2475 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2479 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2480 dnl Does the new font backend require it, or can it work without it?
2484 if test "${HAVE_LIBOTF}" = yes; then
2485 if test "${with_m17n_flt}" != "no"; then
2486 PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
2487 if test "$HAVE_M17N_FLT" = "yes"; then
2488 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2499 ### End of font-backend (under X11) section.
2501 AC_SUBST(FREETYPE_CFLAGS)
2502 AC_SUBST(FREETYPE_LIBS)
2503 AC_SUBST(FONTCONFIG_CFLAGS)
2504 AC_SUBST(FONTCONFIG_LIBS)
2505 AC_SUBST(LIBOTF_CFLAGS)
2506 AC_SUBST(LIBOTF_LIBS)
2507 AC_SUBST(M17N_FLT_CFLAGS)
2508 AC_SUBST(M17N_FLT_LIBS)
2510 ### Use -lXpm if available, unless `--with-xpm=no'.
2514 if test "${HAVE_W32}" = "yes"; then
2515 if test "${with_xpm}" != "no"; then
2516 SAVE_CPPFLAGS="$CPPFLAGS"
2517 SAVE_LDFLAGS="$LDFLAGS"
2518 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
2519 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
2520 AC_CHECK_HEADER(X11/xpm.h,
2521 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
2522 if test "${HAVE_XPM}" = "yes"; then
2523 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2524 AC_EGREP_CPP(no_return_alloc_pixels,
2525 [#include "X11/xpm.h"
2526 #ifndef XpmReturnAllocPixels
2527 no_return_alloc_pixels
2529 ], HAVE_XPM=no, HAVE_XPM=yes)
2531 if test "${HAVE_XPM}" = "yes"; then
2532 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
2536 CPPFLAGS="$SAVE_CPPFLAGS"
2537 LDFLAGS="$SAVE_LDFLAGS"
2542 if test "${HAVE_XPM}" = "yes"; then
2543 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm libary (-lXpm).])
2548 if test "${HAVE_X11}" = "yes"; then
2549 if test "${with_xpm}" != "no"; then
2550 AC_CHECK_HEADER(X11/xpm.h,
2551 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2552 if test "${HAVE_XPM}" = "yes"; then
2553 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2554 AC_EGREP_CPP(no_return_alloc_pixels,
2555 [#include "X11/xpm.h"
2556 #ifndef XpmReturnAllocPixels
2557 no_return_alloc_pixels
2559 ], HAVE_XPM=no, HAVE_XPM=yes)
2561 if test "${HAVE_XPM}" = "yes"; then
2569 if test "${HAVE_XPM}" = "yes"; then
2570 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2577 ### Use -ljpeg if available, unless `--with-jpeg=no'.
2580 if test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2581 if test "${with_jpeg}" != "no"; then
2582 dnl Checking for jpeglib.h can lose because of a redefinition of
2584 AC_CHECK_HEADER(jerror.h,
2585 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
2588 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2589 if test "${HAVE_JPEG}" = "yes"; then
2590 AC_DEFINE(HAVE_JPEG)
2591 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2592 [#include <jpeglib.h>
2593 version=JPEG_LIB_VERSION
2595 [AC_DEFINE(HAVE_JPEG)],
2596 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2599 if test "${HAVE_JPEG}" = "yes"; then
2605 ### Use -lpng if available, unless `--with-png=no'.
2608 if test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2609 if test "${with_png}" != "no"; then
2610 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
2611 # in /usr/include/libpng.
2612 AC_CHECK_HEADERS(png.h libpng/png.h, break)
2613 if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
2614 AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
2618 if test "${HAVE_PNG}" = "yes"; then
2619 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2620 LIBPNG="-lpng -lz -lm"
2622 AC_CHECK_DECL(png_longjmp,
2624 [AC_DEFINE(PNG_DEPSTRUCT, [],
2625 [Define to empty to suppress deprecation warnings when building
2626 with --enable-gcc-warnings and with libpng versions before 1.5,
2627 which lack png_longjmp.])],
2628 [[#ifdef HAVE_LIBPNG_PNG_H
2629 # include <libpng/png.h>
2638 ### Use -ltiff if available, unless `--with-tiff=no'.
2641 if test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2642 if test "${with_tiff}" != "no"; then
2643 AC_CHECK_HEADER(tiffio.h,
2645 # At least one tiff package requires the jpeg library.
2646 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
2647 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
2650 if test "${HAVE_TIFF}" = "yes"; then
2651 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
2652 dnl FIXME -lz -lm, as per libpng?
2658 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
2661 if test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
2662 || test "${HAVE_W32}" = "yes"; then
2663 AC_CHECK_HEADER(gif_lib.h,
2664 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
2665 # Earlier versions can crash Emacs.
2666 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])
2668 if test "$HAVE_GIF" = yes; then
2670 elif test "$HAVE_GIF" = maybe; then
2671 # If gif_lib.h but no libgif, try libungif.
2672 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
2673 test "$HAVE_GIF" = yes && LIBGIF=-lungif
2676 if test "${HAVE_GIF}" = "yes"; then
2677 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
2682 dnl Check for required libraries.
2683 if test "${HAVE_X11}" = "yes"; then
2686 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
2687 MISSING="libXpm" && WITH_NO="--with-xpm=no"
2688 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
2689 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
2690 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
2691 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
2692 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
2693 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
2694 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
2695 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
2697 if test "X${MISSING}" != X; then
2698 AC_MSG_ERROR([The following required libraries were not found:
2700 Maybe some development libraries/packages are missing?
2701 If you don't want to link with them give
2703 as options to configure])
2707 ### Use -lgpm if available, unless `--with-gpm=no'.
2710 if test "${with_gpm}" != "no"; then
2711 AC_CHECK_HEADER(gpm.h,
2712 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
2714 if test "${HAVE_GPM}" = "yes"; then
2715 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
2721 dnl Check for malloc/malloc.h on darwin
2722 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
2725 ### Use NeXTstep API to implement GUI.
2726 if test "${HAVE_NS}" = "yes"; then
2727 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
2728 if test "${NS_IMPL_COCOA}" = "yes"; then
2729 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
2731 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
2732 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
2733 # See also .m.o rule in Makefile.in */
2734 # FIXME: are all these flags really needed? Document here why. */
2735 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
2736 ## Extra CFLAGS applied to src/*.m files.
2737 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"
2739 # We also have mouse menus.
2744 if test "${HAVE_W32}" = "yes"; then
2748 ### Use session management (-lSM -lICE) if available
2751 if test "${HAVE_X11}" = "yes"; then
2752 AC_CHECK_HEADER(X11/SM/SMlib.h,
2753 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
2755 if test "${HAVE_X_SM}" = "yes"; then
2756 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
2760 *) LIBS="$LIBXSM $LIBS" ;;
2766 ### Use libxml (-lxml2) if available
2768 if test "${with_xml2}" != "no"; then
2769 ### I'm not sure what the version number should be, so I just guessed.
2770 PKG_CHECK_MODULES(LIBXML2, libxml-2.0 > 2.6.17, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2771 if test "${HAVE_LIBXML2}" = "yes"; then
2772 LIBS="$LIBXML2_LIBS $LIBS"
2773 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2774 if test "${HAVE_LIBXML2}" = "yes"; then
2775 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
2782 AC_SUBST(LIBXML2_LIBS)
2783 AC_SUBST(LIBXML2_CFLAGS)
2785 # If netdb.h doesn't declare h_errno, we must declare it by hand.
2786 AC_CACHE_CHECK(whether netdb declares h_errno,
2787 emacs_cv_netdb_declares_h_errno,
2788 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
2789 [[return h_errno;]])],
2790 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
2791 if test $emacs_cv_netdb_declares_h_errno = yes; then
2792 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
2795 # sqrt and other floating-point functions such as fmod and frexp
2796 # are found in -lm on most systems.
2797 AC_CHECK_LIB(m, sqrt)
2799 # Check for mail-locking functions in a "mail" library. Probably this should
2800 # have the same check as for liblockfile below.
2801 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
2802 if test $have_mail = yes; then
2804 LIBS="$LIBS_MAIL $LIBS"
2805 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
2809 dnl Debian, at least:
2810 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
2811 if test $have_lockfile = yes; then
2812 LIBS_MAIL=-llockfile
2813 LIBS="$LIBS_MAIL $LIBS"
2814 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
2816 # If we have the shared liblockfile, assume we must use it for mail
2817 # locking (e.g. Debian). If we couldn't link against liblockfile
2818 # (no liblockfile.a installed), ensure that we don't need to.
2819 dnl This works for files generally, not just executables.
2820 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
2821 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
2822 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
2823 if test $ac_cv_prog_liblockfile = yes; then
2824 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
2825 This probably means that movemail could lose mail.
2826 There may be a `development' package to install containing liblockfile.])
2829 AC_CHECK_HEADERS_ONCE(maillock.h)
2832 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
2833 ## interlock access to the mail spool. The alternative is a lock file named
2834 ## /usr/spool/mail/$USER.lock.
2837 aix4-2) mail_lock="lockf" ;;
2839 gnu|freebsd|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
2841 ## On GNU/Linux systems, both methods are used by various mail programs.
2842 ## I assume most people are using newer mailers that have heard of flock.
2843 ## Change this if you need to.
2844 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
2845 ## configure gets the right answers, and that means *NOT* using flock.
2846 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
2847 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
2848 ## Debian maintainer hasn't provided a clean fix for Emacs.
2849 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
2850 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
2851 ## correct logic. -- fx
2852 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
2853 ## liblockfile is a Free Software replacement for libmail, used on
2854 ## Debian systems and elsewhere. -rfr.
2857 if test $have_mail = yes || test $have_lockfile = yes; then
2858 test $ac_cv_header_maillock_h = yes && mail_lock=no
2864 case "$mail_lock" in
2865 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
2867 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
2869 *) BLESSMAIL_TARGET="need-blessmail" ;;
2871 AC_SUBST(BLESSMAIL_TARGET)
2874 AC_CHECK_FUNCS(gethostname \
2875 closedir getrusage get_current_dir_name \
2877 fpathconf select getpagesize setlocale \
2878 utimes getrlimit setrlimit setpgid getcwd shutdown getaddrinfo \
2879 __fpending strsignal setitimer \
2880 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
2881 gai_strerror mkstemp getline getdelim fsync sync \
2882 difftime posix_memalign \
2883 getpwent endpwent getgrent endgrent \
2885 cfmakeraw cfsetspeed copysign __executable_start)
2887 dnl getwd appears to be buggy on SVR4.2, so we don't use it.
2888 if test $opsys = unixware; then
2889 dnl In case some other test ends up checking for getwd.
2890 AC_DEFINE(BROKEN_GETWD, 1, [Define if getwd should not be used.])
2892 AC_CHECK_FUNCS(getwd)
2895 ## Eric Backus <ericb@lsid.hp.com> says, HP-UX 9.x on HP 700 machines
2896 ## has a broken `rint' in some library versions including math library
2897 ## version number A.09.05.
2898 ## You can fix the math library by installing patch number PHSS_4630.
2899 ## But we can fix it more reliably for Emacs by just not using rint.
2900 ## We also skip HAVE_RANDOM - see comments in src/conf_post.h.
2903 *) AC_CHECK_FUNCS(random rint) ;;
2906 dnl Cannot use AC_CHECK_FUNCS
2907 AC_CACHE_CHECK([for __builtin_unwind_init],
2908 emacs_cv_func___builtin_unwind_init,
2909 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
2910 emacs_cv_func___builtin_unwind_init=yes,
2911 emacs_cv_func___builtin_unwind_init=no)])
2912 if test $emacs_cv_func___builtin_unwind_init = yes; then
2913 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
2914 [Define to 1 if you have the `__builtin_unwind_init' function.])
2917 AC_CHECK_HEADERS_ONCE(sys/un.h)
2924 AC_CHECK_FUNCS(grantpt)
2926 # PTY-related GNU extensions.
2927 AC_CHECK_FUNCS(getpt posix_openpt)
2929 # Check this now, so that we will NOT find the above functions in ncurses.
2930 # That is because we have not set up to link ncurses in lib-src.
2931 # It's better to believe a function is not available
2932 # than to expect to find it in ncurses.
2933 # Also we need tputs and friends to be able to build at all.
2934 AC_MSG_CHECKING([for library containing tputs])
2935 # Run a test program that contains a call to tputs, a call that is
2936 # never executed. This tests whether a pre-'main' dynamic linker
2937 # works with the library. It's too much trouble to actually call
2938 # tputs in the test program, due to portability hassles. When
2939 # cross-compiling, assume the test program will run if it links.
2940 AC_DEFUN([tputs_link_source], [
2942 [[extern void tputs (const char *, int, int (*)(int));
2943 int main (int argc, char **argv)
2946 tputs (argv[0], 0, 0);
2950 # Maybe curses should be tried earlier?
2951 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
2952 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
2954 if test -z "$tputs_library"; then
2958 LIBS_TERMCAP=-l$tputs_library
2960 LIBS="$LIBS_TERMCAP $LIBS"
2962 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
2963 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
2965 if test "X$msg" != Xno; then
2969 AC_MSG_RESULT([$msg])
2970 if test "X$msg" = Xno; then
2971 AC_MSG_ERROR([The required function `tputs' was not found in any library.
2972 The following libraries were tried (in order):
2973 libtinfo, libncurses, libterminfo, libtermcap, libcurses
2974 Please try installing whichever of these libraries is most appropriate
2975 for your system, together with its header files.
2976 For example, a libncurses-dev(el) or similar package.])
2979 ## Use termcap instead of terminfo?
2980 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
2982 ## FIXME? In the cases below where we unconditionally set
2983 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
2984 ## if that was found above to have tputs.
2985 ## Should we use the gnu* logic everywhere?
2987 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
2988 ## The ncurses library has been moved out of the System framework in
2989 ## Mac OS X 10.2. So if configure detects it, set the command-line
2990 ## option to use it.
2991 darwin) LIBS_TERMCAP="-lncurses" ;;
2993 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
2996 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
2997 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
2998 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
2999 [[#if __FreeBSD_version < 400000
3002 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3004 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3006 if test $emacs_cv_freebsd_terminfo = yes; then
3007 LIBS_TERMCAP="-lncurses"
3010 LIBS_TERMCAP="-ltermcap"
3015 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3017 LIBS_TERMCAP="-ltermcap"
3021 openbsd) LIBS_TERMCAP="-lncurses" ;;
3023 ## hpux: Make sure we get select from libc rather than from libcurses
3024 ## because libcurses on HPUX 10.10 has a broken version of select.
3025 ## We used to use -lc -lcurses, but this may be cleaner.
3026 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3027 # set that way, now it uses the default). Isn't this a contradiction?
3028 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3032 TERMCAP_OBJ=tparam.o
3033 if test $TERMINFO = yes; then
3034 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3035 TERMCAP_OBJ=terminfo.o
3037 AC_SUBST(LIBS_TERMCAP)
3038 AC_SUBST(TERMCAP_OBJ)
3041 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3042 # On Darwin, res_init appears not to be useful: see bug#562 and
3043 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3046 if test $opsys != darwin; then
3048 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3049 #include <arpa/nameser.h>
3050 #include <resolv.h>]],
3051 [[return res_init();]])],
3052 have_res_init=yes, have_res_init=no)
3053 if test "$have_res_init" = no; then
3055 LIBS="$LIBS -lresolv"
3056 AC_MSG_CHECKING(for res_init with -lresolv)
3057 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3058 #include <arpa/nameser.h>
3059 #include <resolv.h>]],
3060 [[return res_init();]])],
3061 have_res_init=yes, have_res_init=no)
3062 AC_MSG_RESULT($have_res_init)
3063 if test "$have_res_init" = yes ; then
3069 if test "$have_res_init" = yes; then
3070 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3074 # Do we need the Hesiod library to provide the support routines?
3075 dnl FIXME? Should we be skipping this on Darwin too?
3077 if test "$with_hesiod" != no ; then
3078 # Don't set $LIBS here -- see comments above. FIXME which comments?
3079 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3080 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3081 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3082 if test "$resolv" = yes ; then
3087 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3088 hesiod=yes, :, $RESOLVLIB)])
3090 if test x"$hesiod" = xyes; then
3091 AC_DEFINE(HAVE_LIBHESIOD, 1,
3092 [Define to 1 if you have the hesiod library (-lhesiod).])
3098 # Do we need libresolv (due to res_init or Hesiod)?
3099 if test "$resolv" = yes && test $opsys != darwin; then
3100 AC_DEFINE(HAVE_LIBRESOLV, 1,
3101 [Define to 1 if you have the resolv library (-lresolv).])
3108 # These tell us which Kerberos-related libraries to use.
3115 if test "${with_kerberos}" != no; then
3116 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3117 if test $have_com_err = yes; then
3118 COM_ERRLIB=-lcom_err
3119 LIBS="$COM_ERRLIB $LIBS"
3120 AC_DEFINE(HAVE_LIBCOM_ERR, 1, [Define to 1 if you have the `com_err' library (-lcom_err).])
3122 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3123 if test $have_crypto = yes; then
3125 LIBS="$CRYPTOLIB $LIBS"
3126 AC_DEFINE(HAVE_LIBCRYPTO, 1, [Define to 1 if you have the `crypto' library (-lcrypto).])
3128 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3129 if test $have_k5crypto = yes; then
3130 CRYPTOLIB=-lk5crypto
3131 LIBS="$CRYPTOLIB $LIBS"
3132 AC_DEFINE(HAVE_LIBK5CRYPTO, 1, [Define to 1 if you have the `k5crypto' library (-lk5crypto).])
3134 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3135 if test $have_krb5=yes; then
3137 LIBS="$KRB5LIB $LIBS"
3138 AC_DEFINE(HAVE_LIBKRB5, 1, [Define to 1 if you have the `krb5' library (-lkrb5).])
3140 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3141 if test "${with_kerberos5}" = no; then
3142 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3143 if test $have_des425 = yes; then
3145 LIBS="$DESLIB $LIBS"
3146 AC_DEFINE(HAVE_LIBDES425, 1, [Define to 1 if you have the `des425' library (-ldes425).])
3148 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3149 if test $have_des = yes; then
3151 LIBS="$DESLIB $LIBS"
3152 AC_DEFINE(HAVE_LIBDES, 1, [Define to 1 if you have the `des' library (-ldes).])
3155 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3156 if test $have_krb4 = yes; then
3158 LIBS="$KRB4LIB $LIBS"
3159 AC_DEFINE(HAVE_LIBKRB4, 1, [Define to 1 if you have the `krb4' library (-lkrb4).])
3161 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3162 if test $have_krb = yes; then
3164 LIBS="$KRB4LIB $LIBS"
3165 AC_DEFINE(HAVE_LIBKRB, 1, [Define to 1 if you have the `krb' library (-lkrb).])
3170 if test "${with_kerberos5}" != no; then
3171 AC_CHECK_HEADERS(krb5.h,
3172 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3173 [#include <krb5.h>])])
3175 AC_CHECK_HEADERS(des.h,,
3176 [AC_CHECK_HEADERS(kerberosIV/des.h,,
3177 [AC_CHECK_HEADERS(kerberos/des.h)])])
3178 AC_CHECK_HEADERS(krb.h,,
3179 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3180 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3182 AC_CHECK_HEADERS(com_err.h)
3185 AC_SUBST(COM_ERRLIB)
3191 AC_CHECK_FUNCS_ONCE(tzset)
3192 AC_MSG_CHECKING(whether localtime caches TZ)
3193 AC_CACHE_VAL(emacs_cv_localtime_cache,
3194 [if test x$ac_cv_func_tzset = xyes; then
3195 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3196 char TZ_GMT0[] = "TZ=GMT0";
3197 char TZ_PST8[] = "TZ=PST8";
3200 time_t now = time ((time_t *) 0);
3201 int hour_GMT0, hour_unset;
3202 if (putenv (TZ_GMT0) != 0)
3204 hour_GMT0 = localtime (&now)->tm_hour;
3206 hour_unset = localtime (&now)->tm_hour;
3207 if (putenv (TZ_PST8) != 0)
3209 if (localtime (&now)->tm_hour == hour_GMT0)
3212 if (localtime (&now)->tm_hour != hour_unset)
3215 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3216 [# If we have tzset, assume the worst when cross-compiling.
3217 emacs_cv_localtime_cache=yes])
3219 # If we lack tzset, report that localtime does not cache TZ,
3220 # since we can't invalidate the cache if we don't have tzset.
3221 emacs_cv_localtime_cache=no
3223 AC_MSG_RESULT($emacs_cv_localtime_cache)
3224 if test $emacs_cv_localtime_cache = yes; then
3225 AC_DEFINE(LOCALTIME_CACHE, 1,
3226 [Define to 1 if localtime caches TZ.])
3230 AC_CHECK_FUNC(socket, , ok_so_far=no)
3231 if test $ok_so_far = yes; then
3232 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3234 if test $ok_so_far = yes; then
3235 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3237 if test $ok_so_far = yes; then
3238 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3239 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3240 [Define to 1 if you have inet sockets.])
3243 if test -f /usr/lpp/X11/bin/smt.exp; then
3244 AC_DEFINE(HAVE_AIX_SMT_EXP, 1,
3245 [Define to 1 if the file /usr/lpp/X11/bin/smt.exp exists.])
3248 AC_MSG_CHECKING(whether system supports dynamic ptys)
3249 if test -d /dev/pts && ls -d /dev/ptmx > /dev/null 2>&1 ; then
3251 AC_DEFINE(HAVE_DEV_PTMX, 1, [Define to 1 if dynamic ptys are supported.])
3256 dnl Check for a Solaris 2.4 vfork bug that Autoconf misses (through 2.69).
3257 dnl This can be removed once we assume Autoconf 2.70.
3259 *-solaris2.4 | *-solaris2.4.*)
3260 dnl Disable the Autoconf-generated vfork test.
3261 : ${ac_cv_func_vfork_works=no};;
3266 AC_CHECK_FUNCS(snprintf)
3268 dnl Adapted from Haible's version.
3269 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3270 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3271 [[char* cs = nl_langinfo(CODESET);]])],
3272 emacs_cv_langinfo_codeset=yes,
3273 emacs_cv_langinfo_codeset=no)
3275 if test $emacs_cv_langinfo_codeset = yes; then
3276 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3277 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3282 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3283 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3284 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3285 if test "$emacs_cv_c_restrict_arr" = yes; then
3286 AC_DEFINE(__restrict_arr, __restrict,
3287 [Define to compiler's equivalent of C99 restrict keyword in array
3288 declarations. Define as empty for no equivalent.])
3291 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3292 dnl how the tty code is related to POSIX and/or other versions of termios.
3293 dnl The following looks like a useful start.
3295 dnl AC_SYS_POSIX_TERMIOS
3296 dnl if test $ac_cv_sys_posix_termios = yes; then
3297 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3298 dnl and macros for terminal control.])
3299 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3302 dnl Turned on June 1996 supposing nobody will mind it.
3303 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3304 in the full name stands for the login id.])
3306 dnl Every platform that uses configure (ie every non-MS platform)
3307 dnl supports this. There is a create-lockfiles option you can
3308 dnl customize if you do not want the lock files to be written.
3309 dnl So it is not clear that this #define still needs to exist.
3310 AC_DEFINE(CLASH_DETECTION, 1, [Define if you want lock files to be written,
3311 so that Emacs can tell instantly when you try to modify a file that
3312 someone else has modified in his/her Emacs.])
3314 dnl Everybody supports this, except MS.
3315 dnl Seems like the kind of thing we should be testing for, though.
3316 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3317 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3319 dnl Everybody supports this, except MS-DOS.
3320 dnl Seems like the kind of thing we should be testing for, though.
3321 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3322 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3323 4.2-compatible sockets.])
3325 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3327 AC_DEFINE(NULL_DEVICE, ["/dev/null"], [Name of the file to open to get
3328 a null file, or a data sink.])
3330 AC_DEFINE(SEPCHAR, [':'], [Character that separates PATH elements.])
3332 dnl Everybody supports this, except MS-DOS.
3333 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3335 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3338 AC_DEFINE(DIRECTORY_SEP, ['/'],
3339 [Character that separates directories in a file name.])
3341 dnl Only used on MS platforms.
3342 AH_TEMPLATE(DEVICE_SEP, [Character that separates a device in a file name.])
3344 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
3345 [Returns true if character is a device separator.])
3347 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
3348 [Returns true if character is a directory separator.])
3350 dnl On MS, this also accepts IS_DEVICE_SEP.
3351 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
3352 [Returns true if character is any form of separator.])
3355 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
3359 dnl Unfortunately without libXmu we cannot support EditRes.
3360 if test x$ac_cv_lib_Xmu_XmuConvertStandardSelection != xyes; then
3361 AC_DEFINE(NO_EDITRES, 1)
3366 dnl Assar Westerlund <assar@sics.se> says this is necessary for
3367 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
3368 AC_DEFINE(NO_EDITRES, 1)
3374 irix6-5 | sol2* | unixware )
3375 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
3376 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
3377 dnl need the constant to dimension an array. So wire in the appropriate
3379 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
3383 emacs_broken_SIGIO=no
3386 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
3387 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
3388 hpux* | irix6-5 | openbsd | sol2* | unixware )
3389 emacs_broken_SIGIO=yes
3393 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
3394 dnl the way this system works, libc functions that return malloced
3395 dnl memory use the libc malloc implementation. Calling xfree or
3396 dnl xrealloc on the results of such functions results in a crash.
3398 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
3399 dnl but that does not currently work on this system.
3401 dnl It is possible to completely override the malloc implementation on
3402 dnl AIX, but that involves putting the malloc functions in a shared
3403 dnl library and setting the MALLOCTYPE environment variable to point to
3404 dnl that shared library.
3406 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
3407 dnl to avoid a crash just use the Emacs implementation for that function.
3409 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
3410 dnl of this file, so that we do not check for get_current_dir_name
3411 dnl on AIX. But that might be fragile if something else ends
3412 dnl up testing for get_current_dir_name as a dependency.
3413 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
3414 get_current_dir_name should not be used.])
3418 dnl Circumvent a bug in FreeBSD. In the following sequence of
3419 dnl writes/reads on a PTY, read(2) returns bogus data:
3421 dnl write(2) 1022 bytes
3422 dnl write(2) 954 bytes, get EAGAIN
3423 dnl read(2) 1024 bytes in process_read_output
3424 dnl read(2) 11 bytes in process_read_output
3426 dnl That is, read(2) returns more bytes than have ever been written
3427 dnl successfully. The 1033 bytes read are the 1022 bytes written
3428 dnl successfully after processing (for example with CRs added if the
3429 dnl terminal is set up that way which it is here). The same bytes will
3430 dnl be seen again in a later read(2), without the CRs.
3431 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
3432 work around an issue when reading from a PTY.])
3438 dnl FIXME Can't we test if this exists (eg /proc/$$)?
3439 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
3444 darwin | freebsd | netbsd | openbsd )
3445 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
3446 close a pty to make it a controlling terminal (it is already a
3447 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
3451 dnl FIXME Surely we can test for this rather than hard-code it.
3453 netbsd | openbsd) sound_device="/dev/audio" ;;
3454 *) sound_device="/dev/dsp" ;;
3458 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
3459 [Name of the default sound device.])
3462 dnl Emacs can read input using SIGIO and buffering characters itself,
3463 dnl or using CBREAK mode and making C-g cause SIGINT.
3464 dnl The choice is controlled by the variable interrupt_input.
3466 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
3468 dnl Emacs uses the presence of the USABLE_SIGIO macro
3469 dnl to indicate whether or not signal-driven I/O is possible. It uses
3470 dnl INTERRUPT_INPUT to decide whether to use it by default.
3472 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
3473 dnl CBREAK mode has two disadvantages
3474 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
3475 dnl I hear that in system V this problem does not exist.
3476 dnl 2) Control-G causes output to be discarded.
3477 dnl I do not know whether this can be fixed in system V.
3479 dnl Another method of doing input is planned but not implemented.
3480 dnl It would have Emacs fork off a separate process
3481 dnl to read the input and send it to the true Emacs process
3484 darwin | gnu-linux | gnu-kfreebsd )
3485 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
3490 dnl If the system's imake configuration file defines `NeedWidePrototypes'
3491 dnl as `NO', we must define NARROWPROTO manually. Such a define is
3492 dnl generated in the Makefile generated by `xmkmf'. If we don't define
3493 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
3494 dnl taking float or double parameters.
3496 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
3497 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
3498 file defines `NeedWidePrototypes' as `NO'.])
3503 dnl Used in process.c, this must be a loop, even if it only runs once.
3504 dnl (Except on SGI; see below. Take that, clarity and consistency!)
3505 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
3506 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
3507 dnl trying suffixes 0-16.
3508 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
3509 first PTY, if PTYs are supported.])
3510 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
3511 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
3512 end of a PTY, if non-standard.])
3513 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
3514 end of a PTY, if non-standard.])
3518 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
3519 dnl You allocate a pty by opening /dev/ptc to get the master side.
3520 dnl To get the name of the slave side, you just ttyname() the master side.
3521 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
3522 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
3526 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3527 dnl multi-line AC_DEFINEs are hard. :(
3528 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)])
3529 AC_DEFINE(PTY_NAME_SPRINTF, [])
3530 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3533 dnl FIXME? Maybe use same as freebsd - see bug#12040.
3535 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3536 dnl Not used, because PTY_ITERATION is defined.
3537 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3538 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
3539 dnl But we don't have to block SIGCHLD because it is blocked in the
3540 dnl implementation of grantpt.
3541 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (0)])
3542 AC_DEFINE(PTY_NAME_SPRINTF, [])
3543 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3547 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3550 gnu-linux | gnu-kfreebsd | freebsd | netbsd )
3552 if test "x$ac_cv_func_grantpt" = xyes; then
3553 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
3554 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3555 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
3556 dnl to prevent sigchld_handler from intercepting the child's death.
3557 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); }])
3558 dnl if HAVE_POSIX_OPENPT
3559 if test "x$ac_cv_func_posix_openpt" = xyes; then
3560 AC_DEFINE(PTY_OPEN, [fd = posix_openpt (O_RDWR | O_NOCTTY)])
3561 AC_DEFINE(PTY_NAME_SPRINTF, [])
3563 elif test "x$ac_cv_func_getpt" = xyes; then
3564 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
3565 AC_DEFINE(PTY_NAME_SPRINTF, [])
3567 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
3570 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3575 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3576 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
3577 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
3581 dnl It looks like this cannot be right, because it is not a loop.
3582 dnl However, process.c actually does this:
3588 dnl which presumably makes it OK, since irix == sgi (?).
3589 dnl FIXME it seems like this special treatment is unnecessary?
3590 dnl Why can't irix use a single-trip loop like eg cygwin?
3591 AC_DEFINE(PTY_ITERATION, [])
3592 dnl Not used, because PTY_ITERATION is defined.
3593 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
3594 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); }])
3595 dnl No need to get the pty name at all.
3596 AC_DEFINE(PTY_NAME_SPRINTF, [])
3597 dnl No need to use sprintf to get the tty name--we get that from _getpty.
3598 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3602 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
3603 dnl from intercepting that death. If any child but grantpt's should die
3604 dnl within, it should be caught after sigrelse(2).
3605 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); }])
3609 dnl Comments are as per sol2*.
3610 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); }])
3617 dnl This change means that we don't loop through allocate_pty too
3618 dnl many times in the (rare) event of a failure.
3619 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
3620 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
3621 dnl Push various streams modules onto a PTY channel. Used in process.c.
3622 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.])
3627 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
3628 "typing" a signal character on the pty.])
3631 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
3632 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
3633 aix4-2 | cygwin | gnu | irix6-5 | freebsd | netbsd | openbsd )
3634 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3637 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
3638 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
3639 gnu-linux | gnu-kfreebsd )
3641 AC_MSG_CHECKING([for signals via characters])
3642 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3643 #include <linux/version.h>
3644 #if LINUX_VERSION_CODE < 0x20400
3645 # error "Linux version too old"
3647 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
3649 AC_MSG_RESULT([$emacs_signals_via_chars])
3650 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3655 dnl Used in dispnew.c
3656 AH_TEMPLATE(PENDING_OUTPUT_COUNT, [Number of chars of output in the
3657 buffer of a stdio stream.])
3659 AC_MSG_CHECKING([whether we are using the GNU C library])
3660 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3661 #include <features.h>
3662 #ifndef __GNU_LIBRARY__
3663 # error "this is not the GNU C library"
3665 ]], [[]])], emacs_glibc=yes, emacs_glibc=no)
3666 AC_MSG_RESULT([$emacs_glibc])
3668 if test $emacs_glibc = yes; then
3670 emacs_pending_output=unknown
3673 gnu | gnu-linux | gnu-kfreebsd )
3674 AC_MSG_CHECKING([for style of pending output formalism])
3675 dnl In autoconf 2.67 and later, we could use a single test
3676 dnl since the preprocessed output is accessible in "conftest.i".
3677 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3679 #if !defined (_IO_STDIO_H) && !defined (_STDIO_USES_IOSTREAM)
3680 # error "stdio definitions not found"
3682 ]], [[]])], emacs_pending_output=new, [])
3684 if test $emacs_pending_output = unknown; then
3686 gnu-linux | gnu-kfreebsd)
3687 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3690 # error "not using uclibc"
3692 ]], [[]])], emacs_pending_output=uclibc, emacs_pending_output=old)
3697 AC_MSG_RESULT([$emacs_pending_output])
3699 case $emacs_pending_output in
3701 dnl New C libio names.
3702 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE),
3703 [((FILE)->_IO_write_ptr - (FILE)->_IO_write_base)])
3706 dnl Using the uClibc library.
3707 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE),
3708 [((FILE)->__bufpos - (FILE)->__bufstart)])
3711 dnl Old C++ iostream names.
3712 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE),
3713 [((FILE)->_pptr - (FILE)->_pbase)])
3719 if test $emacs_pending_output = unknown; then
3720 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->__bufp - (FILE)->__buffer)])
3723 else dnl !emacs_glibc
3726 cygwin | darwin | freebsd | netbsd | openbsd )
3727 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->_p - (FILE)->_bf._base)])
3731 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->__ptr - (FILE)->__base)])
3735 dnl HAVE_STDIO_EXT_H && HAVE___FPENDING
3736 if test x$ac_cv_header_stdio_ext_h = xyes && \
3737 test x$ac_cv_func___fpending = xyes; then
3738 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [__fpending (FILE)])
3739 AC_DEFINE(DISPNEW_NEEDS_STDIO_EXT, 1,
3740 [Define if dispnew.c should include stdio_ext.h.])
3742 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->_ptr - (FILE)->_base)])
3749 dnl Used in vm-limit.c
3750 AH_TEMPLATE(DATA_START, [Address of the start of the data segment.])
3751 dnl Used in lisp.h, emacs.c, mem-limits.h
3752 dnl NEWS.18 describes this as "a number which contains
3753 dnl the high bits to be inclusive or'ed with pointers that are unpacked."
3754 AH_TEMPLATE(DATA_SEG_BITS, [Extra bits to be or'd in with any pointers
3755 stored in a Lisp_Object.])
3756 dnl if Emacs uses fewer than 32 bits for the value field of a LISP_OBJECT.
3760 dnl libc defines data_start.
3761 AC_DEFINE(DATA_START, [({ extern int data_start; (char *) &data_start; })])
3765 dnl The data segment on this machine always starts at address 0x40000000.
3766 AC_DEFINE(DATA_START, [0x40000000])
3767 AC_DEFINE(DATA_SEG_BITS, [0x40000000])
3770 AC_DEFINE(DATA_START, [0x10000000])
3771 AC_DEFINE(DATA_SEG_BITS, [0x10000000])
3776 AH_TEMPLATE(ULIMIT_BREAK_VALUE, [Undocumented.])
3777 AH_TEMPLATE(TAB3, [Undocumented.])
3780 darwin) AC_DEFINE(TAB3, OXTABS) ;;
3782 gnu | freebsd | netbsd | openbsd )
3783 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
3784 AC_DEFINE(TAB3, OXTABS)
3787 gnu-linux | gnu-kfreebsd )
3788 dnl libc-linux/sysdeps/linux/i386/ulimit.c says that due to shared
3789 dnl library, we cannot get the maximum address for brk.
3790 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3794 ]], [[]])], AC_DEFINE(ULIMIT_BREAK_VALUE, [(32*1024*1024)]), [])
3796 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3800 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
3801 [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)],
3802 [Mark a secondary stack, like the register stack on the ia64.]), [])
3806 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
3807 run_time_remap; for HPUX.])
3811 dnl Ulimit(UL_GMEMLIM) is busted...
3812 AC_DEFINE(ULIMIT_BREAK_VALUE, [0x14000000])
3817 dnl These won't be used automatically yet. We also need to know, at least,
3818 dnl that the stack is continuous.
3819 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
3820 registers relevant for conservative garbage collection in the jmp_buf.])
3822 AH_TEMPLATE(GC_MARK_STACK, [Define to GC_USE_GCPROS_AS_BEFORE if
3823 conservative garbage collection is not known to work.])
3827 aix4-2 | hpux* | unixware)
3828 dnl Conservative garbage collection has not been tested, so for now
3829 dnl play it safe and stick with the old-fashioned way of marking.
3830 AC_DEFINE(GC_MARK_STACK, [GC_USE_GCPROS_AS_BEFORE])
3833 dnl Not all the architectures are tested, but there are Debian packages
3834 dnl for SCM and/or Guile on them, so the technique must work. See also
3835 dnl comments in alloc.c concerning setjmp and gcc.
3836 dnl Fixme: it's probably safe to just use the GCC conditional below.
3837 gnu-linux | gnu-kfreebsd )
3838 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3839 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
3840 || defined __alpha__ || defined __mips__ || defined __s390__ \
3841 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
3842 || defined __ia64__ || defined __sh__
3845 # error "setjmp not known to work on this arch"
3847 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1),
3848 AC_DEFINE(GC_MARK_STACK, [GC_USE_GCPROS_AS_BEFORE]) )
3853 if test x$GCC = xyes; then
3854 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
3855 AC_DEFINE(GC_SETJMP_WORKS, 1)
3858 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
3859 freebsd | netbsd | openbsd | irix6-5 | sol2* )
3860 AC_DEFINE(GC_SETJMP_WORKS, 1)
3865 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
3868 [[#include <setjmp.h>
3872 _longjmp (j, 1);]])],
3873 [emacs_cv_func__setjmp=yes],
3874 [emacs_cv_func__setjmp=no])])
3875 if test $emacs_cv_func__setjmp = yes; then
3876 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
3878 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
3881 [[#include <setjmp.h>
3884 if (! sigsetjmp (j, 1))
3885 siglongjmp (j, 1);]])],
3886 [emacs_cv_func_sigsetjmp=yes],
3887 [emacs_cv_func_sigsetjmp=no])])
3888 if test $emacs_cv_func_sigsetjmp = yes; then
3889 AC_DEFINE([HAVE_SIGSETJMP], 1,
3890 [Define to 1 if sigsetjmp and siglongjmp work.
3891 The value of this symbol is irrelevant if HAVE__SETJMP is defined.])
3897 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
3898 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
3899 dnl and this is all we need.
3900 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
3907 dnl Used in xfaces.c.
3908 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
3909 some systems, where it requires time.h.])
3914 dnl Define symbols to identify the version of Unix this is.
3915 dnl Define all the symbols that apply correctly.
3916 AH_TEMPLATE(BSD4_2, [Define if the system is compatible with BSD 4.2.])
3917 AH_TEMPLATE(BSD_SYSTEM, [Define if the system is compatible with BSD 4.2.])
3918 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
3919 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
3920 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
3921 AH_TEMPLATE(USG5, [Define if the system is compatible with System V.])
3922 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
3928 dnl This symbol should be defined on AIX Version 3 ???????
3929 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3931 # error "_AIX not defined"
3933 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
3937 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
3941 dnl BSD4_3 and BSD4_4 are already defined in sys/param.h.
3942 AC_DEFINE(BSD4_2, [])
3943 AC_DEFINE(BSD_SYSTEM, [])
3944 dnl More specific than the above two. We cannot use __APPLE__ as this
3945 dnl may not be defined on non-OSX Darwin, and we cannot define DARWIN
3946 dnl here because Panther and lower CoreFoundation.h uses DARWIN to
3947 dnl distinguish OS X from pure Darwin.
3948 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
3952 AC_DEFINE(BSD4_2, [])
3953 dnl Hack to avoid calling AC_PREPROC_IFELSE multiple times.
3954 dnl Would not be needed with autoconf >= 2.67, where the
3955 dnl preprocessed output is accessible in "conftest.i".
3956 AC_DEFINE(BSD_SYSTEM_AHB, 1, [Define if AH_BOTTOM should change BSD_SYSTEM.])
3959 gnu | netbsd | openbsd )
3960 AC_DEFINE(BSD4_2, [])
3961 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3963 # error "BSD_SYSTEM not defined"
3965 ]], [[]])], [], AC_DEFINE(BSD_SYSTEM, 43) )
3968 gnu-linux | gnu-kfreebsd )
3970 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
3976 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
3982 AC_DEFINE(USG5_4, [])
3983 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
3989 AC_DEFINE(USG5_4, [])
3990 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
3996 AC_DEFINE(USG5_4, [])
4000 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4003 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4004 emacs_cv_usable_FIONREAD=no
4009 [AC_LANG_PROGRAM([[#include <sys/types.h>
4010 #include <sys/ioctl.h>
4012 # include <sys/filio.h>
4015 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4016 [emacs_cv_usable_FIONREAD=yes],
4017 [emacs_cv_usable_FIONREAD=no])
4020 if test $emacs_cv_usable_FIONREAD = yes; then
4021 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4023 if test $emacs_broken_SIGIO = no; then
4024 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4026 [AC_LANG_PROGRAM([[#include <fcntl.h>
4029 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4030 [emacs_cv_usable_SIGIO=yes],
4031 [emacs_cv_usable_SIGIO=no])],
4032 [emacs_cv_usable_SIGIO=yes],
4033 [emacs_cv_usable_SIGIO=no])
4034 if test $emacs_cv_usable_SIGIO = yes; then
4035 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4042 dnl Emacs supplies its own malloc, but glib (part of Gtk+) calls
4043 dnl memalign and on Cygwin, that becomes the Cygwin-supplied memalign.
4044 dnl As malloc is not the Cygwin malloc, the Cygwin memalign always
4045 dnl returns ENOSYS. A workaround is to set G_SLICE=always-malloc. */
4047 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
4048 G_SLICE environment variable to "always-malloc" at startup, if
4053 dnl It works to open the pty's tty in the parent (Emacs), then
4054 dnl close and reopen it in the child.
4055 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4056 works to open a pty's tty in the parent process, then close and
4057 reopen it in the child.])
4061 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4062 use VSUSP instead of VSWTCH.])
4063 AC_DEFINE(SETPGRP_RELEASES_CTTY, 1, [Define if process.c:child_setup
4064 should not call setpgrp.])
4068 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4073 # Set up the CFLAGS for real compilation, so we can substitute it.
4074 CFLAGS="$REAL_CFLAGS"
4075 CPPFLAGS="$REAL_CPPFLAGS"
4077 ## Hack to detect a buggy GCC version.
4078 if test "x$GCC" = xyes \
4079 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4080 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4081 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4082 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4085 version=$PACKAGE_VERSION
4087 copyright="Copyright (C) 2012 Free Software Foundation, Inc."
4088 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4089 [Short copyright string for this version of Emacs.])
4092 ### Specify what sort of things we'll be editing into Makefile and config.h.
4093 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4095 AC_SUBST(configuration)
4100 AC_SUBST(exec_prefix)
4103 AC_SUBST(sharedstatedir)
4104 AC_SUBST(libexecdir)
4109 AC_SUBST(standardlisppath)
4110 AC_SUBST(locallisppath)
4112 AC_SUBST(x_default_search_path)
4114 AC_SUBST(archlibdir)
4119 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4120 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4121 ## end of LIBX_BASE, but nothing ever set it.
4122 AC_SUBST(LD_SWITCH_X_SITE)
4123 AC_SUBST(C_SWITCH_X_SITE)
4124 AC_SUBST(GNUSTEP_CFLAGS)
4126 ## Used in lwlib/Makefile.in.
4127 AC_SUBST(X_TOOLKIT_TYPE)
4129 AC_SUBST(ns_appbindir)
4130 AC_SUBST(ns_appresdir)
4132 AC_SUBST(GNU_OBJC_CFLAGS)
4133 AC_SUBST(OTHER_FILES)
4135 if test -n "${term_header}"; then
4136 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4137 [Define to the header for the built-in window system.])
4140 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4141 [Define to the canonical Emacs configuration name.])
4142 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${ac_configure_args}",
4143 [Define to the options passed to configure.])
4144 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4145 define this to include extra configuration information.])
4150 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4151 AC_DEFINE(HAVE_X_WINDOWS, 1,
4152 [Define to 1 if you want to use the X window system.])
4154 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o xgselect.o"
4156 if test "$HAVE_XFT" = "yes"; then
4157 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4158 elif test "$HAVE_FREETYPE" = "yes"; then
4159 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4169 if test "${USE_X_TOOLKIT}" != "none" ; then
4171 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4172 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4173 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4174 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4175 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4179 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4180 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4184 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4185 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4186 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4190 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4191 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4194 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4197 AC_SUBST(WIDGET_OBJ)
4200 case "$USE_X_TOOLKIT" in
4201 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4202 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4203 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4205 AC_SUBST(TOOLKIT_LIBW)
4207 if test "$USE_X_TOOLKIT" = "none"; then
4208 LIBXT_OTHER="\$(LIBXSM)"
4209 OLDXMENU_TARGET="really-oldXMenu"
4211 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4212 OLDXMENU_TARGET="really-lwlib"
4214 AC_SUBST(LIBXT_OTHER)
4216 ## The X Menu stuff is present in the X10 distribution, but missing
4217 ## from X11. If we have X10, just use the installed library;
4218 ## otherwise, use our own copy.
4219 if test "${HAVE_X11}" = "yes" ; then
4220 AC_DEFINE(HAVE_X11, 1,
4221 [Define to 1 if you want to use version 11 of X windows.
4222 Otherwise, Emacs expects to use version 10.])
4224 if test "$USE_X_TOOLKIT" = "none"; then
4225 OLDXMENU="\${oldXMenudir}/libXMenu11.a"
4227 OLDXMENU="\${lwlibdir}/liblw.a"
4229 LIBXMENU="\$(OLDXMENU)"
4230 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4231 OLDXMENU_DEPS="\${OLDXMENU} ../src/\${OLDXMENU}"
4233 ## For a syntactically valid Makefile; not actually used for anything.
4234 ## See comments in src/Makefile.in.
4236 ## FIXME This case (!HAVE_X11 && HAVE_X_WINDOWS) is no longer possible(?).
4237 if test "${HAVE_X_WINDOWS}" = "yes"; then
4246 if test "$HAVE_GTK" = "yes" || test "$HAVE_MENUS" != "yes"; then
4253 AC_SUBST(OLDXMENU_TARGET)
4256 AC_SUBST(LIBX_OTHER)
4257 AC_SUBST(OLDXMENU_DEPS)
4259 if test "${HAVE_MENUS}" = "yes" ; then
4260 AC_DEFINE(HAVE_MENUS, 1,
4261 [Define to 1 if you have mouse menus.
4262 (This is automatic if you use X, but the option to specify it remains.)
4263 It is also defined with other window systems that support xmenu.c.])
4266 if test "${GNU_MALLOC}" = "yes" ; then
4267 AC_DEFINE(GNU_MALLOC, 1,
4268 [Define to 1 if you want to use the GNU memory allocator.])
4272 if test "${REL_ALLOC}" = "yes" ; then
4273 AC_DEFINE(REL_ALLOC, 1,
4274 [Define REL_ALLOC if you want to use the relocating allocator for
4277 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4279 AC_SUBST(RALLOC_OBJ)
4281 if test "$opsys" = "cygwin"; then
4282 CYGWIN_OBJ="sheap.o cygw32.o"
4283 ## Cygwin differs because of its unexec().
4285 POST_ALLOC_OBJ=lastfile.o
4288 PRE_ALLOC_OBJ=lastfile.o
4291 AC_SUBST(CYGWIN_OBJ)
4292 AC_SUBST(PRE_ALLOC_OBJ)
4293 AC_SUBST(POST_ALLOC_OBJ)
4295 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4296 # it temporarily reverts them to their pre-pkg-config values,
4297 # because gnulib needs to work with both src (which uses the
4298 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4299 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4300 # and it therefore needs to run in an environment where LIBS does not
4301 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4302 # for some package unrelated to lib-src.
4305 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4306 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4307 gl_ASSERT_NO_GNULIB_POSIXCHECK
4308 gl_ASSERT_NO_GNULIB_TESTS
4314 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4317 ## The -headerpad option tells ld (see man page) to leave room at the
4318 ## end of the header for adding load commands. Needed for dumping.
4319 ## 0x690 is the total size of 30 segment load commands (at 56
4320 ## each); under Cocoa 31 commands are required.
4321 if test "$HAVE_NS" = "yes"; then
4322 libs_nsgui="-framework AppKit"
4328 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4330 ## This is here because src/Makefile.in did some extra fiddling around
4331 ## with LD_SWITCH_SYSTEM. The cpp logic was:
4332 ## #ifndef LD_SWITCH_SYSTEM
4333 ## #if !defined (__GNUC__) && ((defined (BSD_SYSTEM) && !defined (COFF)))
4334 ## Since all the *bsds define LD_SWITCH_SYSTEM, this simplifies to:
4335 ## not using gcc, darwin.
4336 ## Because this was done in src/Makefile.in, the resulting part of
4337 ## LD_SWITCH_SYSTEM was not used in configure (ie, in ac_link).
4338 ## It therefore seems cleaner to put this in LD_SWITCH_SYSTEM_TEMACS,
4339 ## rather than LD_SWITCH_SYSTEM.
4340 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4341 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4344 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4345 ## find X at run-time.
4346 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4347 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4348 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4349 ## had different values in configure (in ac_link) and src/Makefile.in.
4350 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4351 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4353 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4356 if test "$NS_IMPL_GNUSTEP" = "yes"; then
4357 LD_SWITCH_SYSTEM_TEMACS="${LD_SWITCH_SYSTEM_TEMACS} -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES} -lgnustep-gui -lgnustep-base -lobjc -lpthread"
4360 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4366 ## gnu: GNU needs its own crt0.
4367 aix4-2|cygwin|darwin|gnu|hpux*|irix6-5|sol2*|unixware) ORDINARY_LINK=yes ;;
4369 ## On post 1.3 releases of NetBSD, gcc -nostdlib also clears the
4370 ## library search parth, i.e. it won't search /usr/lib for libc and
4371 ## friends. Using -nostartfiles instead avoids this problem, and
4372 ## will also work on earlier NetBSD releases.
4373 netbsd|openbsd) LD_FIRSTFLAG="-nostartfiles" ;;
4375 ## powerpc*: NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp> says
4376 ## MkLinux/LinuxPPC needs this.
4377 ## s390x-* only supports opsys = gnu-linux so it can be added here.
4379 case "$canonical" in
4380 powerpc*|s390x-*) LD_FIRSTFLAG="-nostdlib" ;;
4386 if test "x$ORDINARY_LINK" = "xyes"; then
4389 AC_DEFINE(ORDINARY_LINK, 1, [Define if the C compiler is the linker.])
4391 ## The system files defining neither ORDINARY_LINK nor LD_FIRSTFLAG are:
4392 ## freebsd, gnu-* not on powerpc*|s390x*.
4393 elif test "x$GCC" = "xyes" && test "x$LD_FIRSTFLAG" = "x"; then
4395 ## Versions of GCC >= 2.0 put their library, libgcc.a, in obscure
4396 ## places that are difficult to figure out at make time. Fortunately,
4397 ## these same versions allow you to pass arbitrary flags on to the
4398 ## linker, so there is no reason not to use it as a linker.
4400 ## Well, it is not quite perfect. The "-nostdlib" keeps GCC from
4401 ## searching for libraries in its internal directories, so we have to
4402 ## ask GCC explicitly where to find libgcc.a (LIB_GCC below).
4403 LD_FIRSTFLAG="-nostdlib"
4406 ## FIXME? What setting of EDIT_LDFLAGS should this have?
4407 test "$NS_IMPL_GNUSTEP" = "yes" && LD_FIRSTFLAG="-rdynamic"
4409 AC_SUBST(LD_FIRSTFLAG)
4412 ## FIXME? The logic here is not precisely the same as that above.
4413 ## There is no check here for a pre-defined LD_FIRSTFLAG.
4414 ## Should we only be setting LIB_GCC if LD ~ -nostdlib?
4416 if test "x$GCC" = "xyes" && test "x$ORDINARY_LINK" != "xyes"; then
4419 freebsd|netbsd|openbsd) LIB_GCC= ;;
4422 ## armin76@gentoo.org reported that the lgcc_s flag is necessary to
4423 ## build on ARM EABI under GNU/Linux. (Bug#5518)
4429 ## FIXME? s/gnu-linux.h used to define LIB_GCC as below, then
4430 ## immediately undefine it again and redefine it to empty.
4431 ## Was the C_SWITCH_X_SITE part really necessary?
4432 ## LIB_GCC=`$CC $C_SWITCH_X_SITE -print-libgcc-file-name`
4438 ## Ask GCC where to find libgcc.a.
4439 *) LIB_GCC=`$CC -print-libgcc-file-name 2> /dev/null` ;;
4444 ## Common for all window systems
4445 if test "$window_system" != "none"; then
4446 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4447 AC_DEFINE(HAVE_MOUSE, 1, [Define if you have mouse support.])
4448 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4451 AC_SUBST(WINDOW_SYSTEM_OBJ)
4453 AH_TOP([/* GNU Emacs site configuration template file.
4455 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2012
4456 Free Software Foundation, Inc.
4458 This file is part of GNU Emacs.
4460 GNU Emacs is free software: you can redistribute it and/or modify
4461 it under the terms of the GNU General Public License as published by
4462 the Free Software Foundation, either version 3 of the License, or
4463 (at your option) any later version.
4465 GNU Emacs is distributed in the hope that it will be useful,
4466 but WITHOUT ANY WARRANTY; without even the implied warranty of
4467 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4468 GNU General Public License for more details.
4470 You should have received a copy of the GNU General Public License
4471 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4474 /* No code in Emacs #includes config.h twice, but some bits of code
4475 intended to work with other packages as well (like gmalloc.c)
4476 think they can include it as many times as they like. */
4477 #ifndef EMACS_CONFIG_H
4478 #define EMACS_CONFIG_H
4481 AH_BOTTOM([#include <conf_post.h>
4483 #endif /* EMACS_CONFIG_H */
4492 #### Report on what we decided to do.
4493 #### Report GTK as a toolkit, even if it doesn't use Xt.
4494 #### It makes printing result more understandable as using GTK sets
4495 #### toolkit_scroll_bars to yes by default.
4496 if test "${HAVE_GTK}" = "yes"; then
4497 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
4501 Configured for \`${canonical}'.
4503 Where should the build process find the source code? ${srcdir}
4504 What compiler should emacs be built with? ${CC} ${CFLAGS}
4505 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4506 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4507 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4508 What window system should Emacs use? ${window_system}
4509 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4511 if test -n "${x_includes}"; then
4512 echo " Where do we find X Windows header files? ${x_includes}"
4514 echo " Where do we find X Windows header files? Standard dirs"
4516 if test -n "${x_libraries}"; then
4517 echo " Where do we find X Windows libraries? ${x_libraries}"
4519 echo " Where do we find X Windows libraries? Standard dirs"
4522 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4523 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4524 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4525 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4526 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4527 echo " Does Emacs use -lpng? ${HAVE_PNG}"
4528 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4529 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4531 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4532 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4533 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4534 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4535 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4536 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4537 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4539 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4540 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4541 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
4542 echo " Does Emacs use -lxft? ${HAVE_XFT}"
4544 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
4547 if test -n "${EMACSDATA}"; then
4548 echo " Environment variable EMACSDATA set to: $EMACSDATA"
4550 if test -n "${EMACSDOC}"; then
4551 echo " Environment variable EMACSDOC set to: $EMACSDOC"
4556 if test "$HAVE_NS" = "yes"; then
4558 echo "You must run \"${MAKE-make} install\" in order to test the built application.
4559 The installed application will go to nextstep/Emacs.app and can be
4560 run or moved from there."
4561 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
4562 echo "The application will be fully self-contained."
4564 echo "The lisp resources for the application will be installed under ${prefix}.
4565 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
4566 to run if these resources are not installed."
4571 if test "${opsys}" = "cygwin"; then
4573 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
4579 # Remove any trailing slashes in these variables.
4580 [test "${prefix}" != NONE &&
4581 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
4582 test "${exec_prefix}" != NONE &&
4583 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
4585 if test "$HAVE_NS" = "yes"; then
4586 if test "$NS_IMPL_GNUSTEP" = yes; then
4587 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
4588 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
4590 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
4591 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
4595 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
4596 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
4597 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
4598 dnl (else you get "no `Makefile.am' found for any configure output").
4599 dnl This will work, but you get a config.status that is not quite right
4600 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
4601 dnl That doesn't have any obvious consequences for Emacs, but on the whole
4602 dnl it seems better to just live with the duplication.
4603 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"
4605 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
4606 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
4607 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
4608 leim/Makefile nextstep/Makefile])
4610 dnl test/ is not present in release tarfiles.
4611 opt_makefile=test/automated/Makefile
4613 if test -f $srcdir/${opt_makefile}.in; then
4614 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4615 dnl Again, it's best not to use a variable. Though you can add
4616 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
4617 AC_CONFIG_FILES([test/automated/Makefile])
4621 dnl admin/ may or may not be present.
4622 opt_makefile=admin/unidata/Makefile
4624 if test -f $srcdir/${opt_makefile}.in; then
4625 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4626 AC_CONFIG_FILES([admin/unidata/Makefile])
4630 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
4632 AC_SUBST(SUBDIR_MAKEFILES_IN)
4634 dnl Make the necessary directories, if they don't exist.
4635 AC_CONFIG_COMMANDS([mkdirs], [
4636 for dir in etc lisp ; do
4637 test -d ${dir} || mkdir ${dir}
4641 dnl You might wonder (I did) why epaths.h is generated by running make,
4642 dnl rather than just letting configure generate it from epaths.in.
4643 dnl One reason is that the various paths are not fully expanded (see above);
4644 dnl eg gamedir=${prefix}/var/games/emacs.
4645 dnl Secondly, the GNU Coding standards require that one should be able
4646 dnl to run `make prefix=/some/where/else' and override the values set
4647 dnl by configure. This also explains the `move-if-change' test and
4648 dnl the use of force in the `epaths-force' rule in Makefile.in.
4649 AC_CONFIG_COMMANDS([epaths], [
4650 echo creating src/epaths.h
4651 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
4652 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS"])
4654 AC_CONFIG_COMMANDS([gdbinit], [
4655 if test ! -f src/.gdbinit && test -f $srcdir/src/.gdbinit; then
4656 echo creating src/.gdbinit
4657 echo source $srcdir/src/.gdbinit > src/.gdbinit