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 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 $NON_GCC_TEST_OPTIONS"
575 # Initialize gnulib right after choosing the compiler.
578 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
579 # if -g3 works and the user does not specify CFLAGS.
580 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
581 if test "$ac_test_CFLAGS" != set; then
584 emacs_g3_CFLAGS='-g3';;
586 emacs_g3_CFLAGS='-g3 -O2';;
590 if test -n "$emacs_g3_CFLAGS"; then
591 emacs_save_CFLAGS=$CFLAGS
592 CFLAGS=$emacs_g3_CFLAGS
593 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
594 [emacs_cv_prog_cc_g3],
595 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
596 [emacs_cv_prog_cc_g3=yes],
597 [emacs_cv_prog_cc_g3=no])])
598 if test $emacs_cv_prog_cc_g3 = yes; then
599 CFLAGS=$emacs_g3_CFLAGS
601 CFLAGS=$emacs_save_CFLAGS
606 AC_ARG_ENABLE([gcc-warnings],
607 [AS_HELP_STRING([--enable-gcc-warnings],
608 [turn on lots of GCC warnings. This is intended for
609 developers, and may generate false alarms when used
610 with older or non-GNU development tools.])],
613 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
615 gl_gcc_warnings=$enableval],
619 AC_ARG_ENABLE(link-time-optimization,
620 [AS_HELP_STRING([--enable-link-time-optimization],
621 [build emacs with link-time optimization.
622 This is supported only for GCC since 4.5.0.])],
623 if test "${enableval}" != "no"; then
624 AC_MSG_CHECKING([whether link-time optimization is supported])
626 if test x$GCC = xyes; then
627 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
628 if test x$CPUS != x; then
634 CFLAGS="$CFLAGS $LTO"
635 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
636 [ac_lto_supported=yes], [ac_lto_supported=no])
639 AC_MSG_RESULT([$ac_lto_supported])
640 if test "$ac_lto_supported" = "yes"; then
641 CFLAGS="$CFLAGS $LTO"
645 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
646 # ------------------------------------------------
647 # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
648 # Otherwise, run RUN-IF-NOT-FOUND.
649 AC_DEFUN([gl_GCC_VERSION_IFELSE],
653 #if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
656 # error "your version of gcc is older than $1.$2"
663 # When compiling with GCC, prefer -isystem to -I when including system
664 # include files, to avoid generating useless diagnostics for the files.
665 if test "$gl_gcc_warnings" != yes; then
670 # This, $nw, is the list of warnings we disable.
673 case $with_x_toolkit in
674 lucid | athena | motif)
675 # Old toolkits mishandle 'const'.
676 nw="$nw -Wwrite-strings"
679 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
682 AC_SUBST([WERROR_CFLAGS])
684 nw="$nw -Waggregate-return" # anachronistic
685 nw="$nw -Wlong-long" # C90 is anachronistic
686 nw="$nw -Wc++-compat" # We don't care about C++ compilers
687 nw="$nw -Wundef" # Warns on '#if GNULIB_FOO' etc in gnulib
688 nw="$nw -Wtraditional" # Warns on #elif which we use often
689 nw="$nw -Wcast-qual" # Too many warnings for now
690 nw="$nw -Wconversion" # Too many warnings for now
691 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
692 nw="$nw -Wsign-conversion" # Too many warnings for now
693 nw="$nw -Woverlength-strings" # Not a problem these days
694 nw="$nw -Wtraditional-conversion" # Too many warnings for now
695 nw="$nw -Wunreachable-code" # so buggy that it's now silently ignored
696 nw="$nw -Wpadded" # Our structs are not padded
697 nw="$nw -Wredundant-decls" # we regularly (re)declare functions
698 nw="$nw -Wlogical-op" # any use of fwrite provokes this
699 nw="$nw -Wformat-nonliteral" # we do this a lot
700 nw="$nw -Wvla" # warnings in gettext.h
701 nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
702 nw="$nw -Wswitch-enum" # Too many warnings for now
703 nw="$nw -Wswitch-default" # Too many warnings for now
704 nw="$nw -Wfloat-equal" # warns about high-quality code
705 nw="$nw -Winline" # OK to ignore 'inline'
706 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
707 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
708 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
710 # Emacs doesn't care about shadowing; see
711 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
714 # The following lines should be removable at some point.
715 nw="$nw -Wstack-protector"
716 nw="$nw -Wstrict-overflow"
717 nw="$nw -Wsuggest-attribute=pure"
719 gl_MANYWARN_ALL_GCC([ws])
720 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
724 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
725 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
726 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
727 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
728 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
729 gl_WARN_ADD([-Wno-format-nonliteral])
731 # In spite of excluding -Wlogical-op above, it is enabled, as of
732 # gcc 4.5.0 20090517.
733 gl_WARN_ADD([-Wno-logical-op])
735 gl_WARN_ADD([-fdiagnostics-show-option])
736 gl_WARN_ADD([-funit-at-a-time])
738 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
739 AH_VERBATIM([FORTIFY_SOURCE],
740 [/* Enable compile-time and run-time bounds-checking, and some warnings,
741 without upsetting glibc 2.15+. */
742 #if defined __OPTIMIZE__ && __OPTIMIZE__
743 # define _FORTIFY_SOURCE 2
746 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
748 # We use a slightly smaller set of warning options for lib/.
749 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
751 nw="$nw -Wunused-macros"
753 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
754 AC_SUBST([GNULIB_WARN_CFLAGS])
759 dnl Some other nice autoconf tests.
760 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
763 dnl if test "x$RANLIB" = x; then
768 AC_PATH_PROG(INSTALL_INFO, install-info, :,
769 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
770 dnl Don't use GZIP, which is used by gzip for additional parameters.
771 AC_PATH_PROG(GZIP_PROG, gzip)
773 if test $opsys = gnu-linux; then
774 AC_PATH_PROG(PAXCTL, paxctl,,
775 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
776 if test "X$PAXCTL" != X; then
777 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
778 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
779 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
780 else AC_MSG_RESULT(no); PAXCTL=""; fi])
784 ## Need makeinfo >= 4.7 (?) to build the manuals.
785 AC_PATH_PROG(MAKEINFO, makeinfo, no)
786 dnl By this stage, configure has already checked for egrep and set EGREP,
787 dnl or exited with an error if no egrep was found.
788 if test "$MAKEINFO" != "no" && \
789 test x"`$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
793 ## Makeinfo is unusual. For a released Emacs, the manuals are
794 ## pre-built, and not deleted by the normal clean rules. makeinfo is
795 ## therefore in the category of "special tools" not normally required, which
796 ## configure does not have to check for (eg autoconf itself).
797 ## In a Bazaar checkout on the other hand, the manuals are not included.
798 ## So makeinfo is a requirement to build from Bazaar, and configure
799 ## should test for it as it does for any other build requirement.
800 ## We use the presence of $srcdir/info/emacs to distinguish a release,
801 ## with pre-built manuals, from a Bazaar checkout.
804 if test "$MAKEINFO" = "no"; then
806 if test "x${with_makeinfo}" = "xno"; then
808 elif test ! -e $srcdir/info/emacs; then
809 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
810 source tree does not seem to have pre-built manuals in the `info' directory.
811 Either install a suitable version of makeinfo, or re-run configure
812 with the `--without-makeinfo' option to build without the manuals.] )
815 AC_SUBST(HAVE_MAKEINFO)
817 dnl Just so that there is only a single place we need to edit.
823 dnl Add our options to ac_link now, after it is set up.
825 if test x$GCC = xyes; then
826 test "x$GCC_LINK_TEST_OPTIONS" != x && \
827 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
829 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
830 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
833 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
834 dnl If we can link with the flag, it shouldn't do any harm anyhow.
835 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
836 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
837 dnl if not built to support GNU ld.
839 late_LDFLAGS=$LDFLAGS
840 if test x$GCC = xyes; then
841 LDFLAGS="$LDFLAGS -Wl,-znocombreloc"
843 LDFLAGS="$LDFLAGS -znocombreloc"
846 AC_MSG_CHECKING([for -znocombreloc])
847 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
848 [AC_MSG_RESULT(yes)],
849 LDFLAGS=$late_LDFLAGS
853 dnl The function dump-emacs will not be defined and temacs will do
854 dnl (load "loadup") automatically unless told otherwise.
855 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
857 your-opsys-here) CANNOT_DUMP=yes ;;
860 test "$CANNOT_DUMP" = "yes" && \
861 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
863 AC_SUBST(CANNOT_DUMP)
868 # MSDOS uses unexcoff.o
869 # MSWindows uses unexw32.o
877 UNEXEC_OBJ=unexmacosx.o
880 UNEXEC_OBJ=unexhp9k800.o
883 # Use the Solaris dldump() function, called from unexsol.c, to dump
884 # emacs, instead of the generic ELF dump code found in unexelf.c.
885 # The resulting binary has a complete symbol table, and is better
886 # for debugging and other observability tools (debuggers, pstack, etc).
888 # If you encounter a problem using dldump(), please consider sending
889 # a message to the OpenSolaris tools-linking mailing list:
890 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
892 # It is likely that dldump() works with older Solaris too, but this has
893 # not been tested, so for now this change is for Solaris 10 or newer.
901 ## Let `ld' find image libs and similar things in /usr/local/lib.
902 ## The system compiler, GCC, has apparently been modified to not
903 ## look there, contrary to what a stock GCC would do.
904 ### It's not our place to do this. See bug#10313#17.
905 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
910 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
911 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
915 ### It's not our place to do this. See bug#10313#17.
916 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
921 ## Han Boetes <han@mijncomputer.nl> says this is necessary,
922 ## otherwise Emacs dumps core on elf systems.
923 LD_SWITCH_SYSTEM="-Z"
926 AC_SUBST(LD_SWITCH_SYSTEM)
928 ac_link="$ac_link $LD_SWITCH_SYSTEM"
930 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
931 ## which has not been defined yet. When this was handled with cpp,
932 ## it was expanded to null when configure sourced the s/*.h file.
933 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
934 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
935 ## (or somesuch), but because it is supposed to go at the _front_
936 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
937 ## Compare with the gnu-linux case below, which added to the end
938 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
939 ## LD_SWITCH_SYSTEM_TEMACS.
942 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
949 AC_CHECK_DECL([__ELF__])
950 if test "$ac_cv_have_decl___ELF__" = "yes"; then
951 ## With ELF, make sure that all common symbols get allocated to in the
952 ## data section. Otherwise, the dump of temacs may miss variables in
953 ## the shared library that have been initialized. For example, with
954 ## GNU libc, __malloc_initialized would normally be resolved to the
955 ## shared library's .bss section, which is fatal.
956 if test "x$GCC" = "xyes"; then
957 C_SWITCH_MACHINE="-fno-common"
959 AC_MSG_ERROR([What gives? Fix me if DEC Unix supports ELF now.])
962 UNEXEC_OBJ=unexalpha.o
966 AC_SUBST(C_SWITCH_MACHINE)
971 ## Some programs in src produce warnings saying certain subprograms
972 ## are too complex and need a MAXMEM value greater than 2000 for
973 ## additional optimization. --nils@exp-math.uni-essen.de
974 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
975 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
976 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
977 ## It is redundant in glibc2, since we define _GNU_SOURCE.
978 AC_SUBST(C_SWITCH_SYSTEM)
983 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
984 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
986 freebsd) LIBS_SYSTEM="-lutil" ;;
988 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
990 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
992 ## Motif needs -lgen.
993 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
995 AC_SUBST(LIBS_SYSTEM)
998 ### Make sure subsequent tests use flags consistent with the build flags.
1000 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1001 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1003 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1006 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C89 or better.
1007 AC_DEFUN([AC_TYPE_SIZE_T])
1008 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1009 AC_DEFUN([AC_TYPE_UID_T])
1015 dnl Current possibilities handled by sed (aix4-2 -> aix,
1016 dnl gnu-linux -> gnu/linux, etc.):
1017 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1018 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1019 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1021 dnl NB do not use CRT_DIR unquoted here, since it might not be set yet.
1025 START_FILES='pre-crt0.o'
1028 ## Adding -lm confuses the dynamic linker, so omit it.
1030 START_FILES='pre-crt0.o'
1033 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtn.o'
1034 START_FILES='pre-crt0.o $(CRT_DIR)/crt1.o $(CRT_DIR)/crti.o'
1035 SYSTEM_TYPE=berkeley-unix
1037 gnu-linux | gnu-kfreebsd )
1038 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtn.o'
1039 START_FILES='pre-crt0.o $(CRT_DIR)/crt1.o $(CRT_DIR)/crti.o'
1041 hpux10-20 | hpux11 )
1043 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o'
1045 dnl NB this may be adjusted below.
1047 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o'
1048 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o $(CRT_DIR)/crtbegin.o'
1049 SYSTEM_TYPE=berkeley-unix
1053 SYSTEM_TYPE=usg-unix-v
1059 AC_SUBST(START_FILES)
1060 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1061 [The type of system you are compiling for; sets `system-type'.])
1063 dnl Not all platforms use crtn.o files. Check if the current one does.
1066 for file in x $LIB_STANDARD $START_FILES; do
1068 *CRT_DIR*) crt_files="$crt_files `echo $file | sed -e 's|.*/||'`" ;;
1072 if test "x$crt_files" != x; then
1074 ## If user specified a crt-dir, use that unconditionally.
1077 if test "X$CRT_DIR" = "X"; then
1079 CRT_DIR=/usr/lib # default
1081 case "$canonical" in
1082 x86_64-*-linux-gnu* | s390x-*-linux-gnu*)
1083 ## On x86-64 and s390x GNU/Linux distributions, the standard library
1084 ## can be in a variety of places. We only try /usr/lib64 and /usr/lib.
1085 ## For anything else (eg /usr/lib32), it is up the user to specify
1086 ## the location (bug#5655).
1087 ## Test for crtn.o, not just the directory, because sometimes the
1088 ## directory exists but does not have the relevant files (bug#1287).
1089 ## FIXME better to test for binary compatibility somehow.
1090 test -e /usr/lib64/crtn.o && CRT_DIR=/usr/lib64
1093 powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*) CRT_DIR=/usr/lib64 ;;
1097 hpux10-20) CRT_DIR=/lib ;;
1100 test "x${GCC}" = xyes && crt_gcc=yes
1106 for file in $crt_files; do
1108 ## If we're using gcc, try to determine it automatically by asking
1109 ## gcc. [If this doesn't work, CRT_DIR will remain at the
1110 ## system-dependent default from above.]
1111 if test $crt_gcc = yes && test ! -e $CRT_DIR/$file; then
1113 crt_file=`$CC --print-file-name=$file 2>/dev/null`
1116 CRT_DIR=`AS_DIRNAME(["$crt_file"])`
1121 dnl We expect all the files to be in a single directory, so after the
1122 dnl first there is no point asking gcc.
1125 test -e $CRT_DIR/$file || crt_missing="$crt_missing $file"
1128 test "x$crt_missing" = x || \
1129 AC_MSG_ERROR([Required file(s) not found:$crt_missing
1130 Try using the --with-crt-dir option.])
1132 fi # crt_files != ""
1138 if test -f $CRT_DIR/crti.o; then
1140 test -f $CRT_DIR/crtn.o || \
1141 AC_MSG_ERROR([Required file not found: crtn.o])
1143 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o $(CRT_DIR)/crtn.o'
1144 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o $(CRT_DIR)/crti.o $(CRT_DIR)/crtbegin.o'
1150 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1151 pre_PKG_CONFIG_LIBS=$LIBS
1153 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
1155 dnl This function definition taken from Gnome 2.0
1156 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
1157 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
1158 dnl also defines GSTUFF_PKG_ERRORS on error
1159 AC_DEFUN([PKG_CHECK_MODULES], [
1162 if test "$PKG_CONFIG" = "no" ; then
1163 ifelse([$4], , [AC_MSG_ERROR([
1164 *** 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])
1166 PKG_CONFIG_MIN_VERSION=0.9.0
1167 if $PKG_CONFIG --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
1168 AC_MSG_CHECKING(for $2)
1170 if $PKG_CONFIG --exists "$2" 2>&AS_MESSAGE_LOG_FD &&
1171 $1_CFLAGS=`$PKG_CONFIG --cflags "$2" 2>&AS_MESSAGE_LOG_FD` &&
1172 $1_LIBS=`$PKG_CONFIG --libs "$2" 2>&AS_MESSAGE_LOG_FD`; then
1179 $1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1180 $1_LIBS=`AS_ECHO(["$$1_LIBS"]) | sed -e 's,///*,/,g'`
1181 AC_MSG_RESULT([yes CFLAGS='$$1_CFLAGS' LIBS='$$1_LIBS'])
1187 ## If we have a custom action on failure, don't print errors, but
1188 ## do set a variable so people can do so. Do it in a subshell
1189 ## to capture any diagnostics in invoking pkg-config.
1190 $1_PKG_ERRORS=`($PKG_CONFIG --print-errors "$2") 2>&1`
1191 ifelse([$4], ,echo "$$1_PKG_ERRORS",)
1197 echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
1198 echo "*** See http://www.freedesktop.org/software/pkgconfig"
1202 if test $succeeded = yes; then
1203 ifelse([$3], , :, [$3])
1205 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])
1210 if test "${with_sound}" != "no"; then
1211 # Sound support for GNU/Linux and the free BSDs.
1212 AC_CHECK_HEADERS(machine/soundcard.h sys/soundcard.h soundcard.h,
1213 have_sound_header=yes)
1214 # Emulation library used on NetBSD.
1215 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1219 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1220 PKG_CHECK_MODULES(ALSA, $ALSA_MODULES, HAVE_ALSA=yes, HAVE_ALSA=no)
1221 if test $HAVE_ALSA = yes; then
1222 SAVE_CFLAGS="$CFLAGS"
1224 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1225 LIBS="$ALSA_LIBS $LIBS"
1226 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1227 emacs_alsa_normal=yes,
1228 emacs_alsa_normal=no)
1229 if test "$emacs_alsa_normal" != yes; then
1230 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1231 [[snd_lib_error_set_handler (0);]])],
1232 emacs_alsa_subdir=yes,
1233 emacs_alsa_subdir=no)
1234 if test "$emacs_alsa_subdir" != yes; then
1235 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1237 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1240 CFLAGS="$SAVE_CFLAGS"
1242 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1243 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1244 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1247 dnl Define HAVE_SOUND if we have sound support. We know it works and
1248 dnl compiles only on the specified platforms. For others, it
1249 dnl probably doesn't make sense to try.
1250 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1252 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1253 gnu-linux|freebsd|netbsd)
1254 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1259 AC_SUBST(CFLAGS_SOUND)
1262 dnl checks for header files
1263 AC_CHECK_HEADERS_ONCE(
1264 linux/version.h sys/systeminfo.h
1265 stdio_ext.h fcntl.h coff.h pty.h
1266 sys/vlimit.h sys/resource.h
1267 sys/utsname.h pwd.h utmp.h dirent.h util.h)
1269 AC_MSG_CHECKING(if personality LINUX32 can be set)
1270 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1271 emacs_cv_personality_linux32=yes,
1272 emacs_cv_personality_linux32=no)
1273 AC_MSG_RESULT($emacs_cv_personality_linux32)
1275 if test $emacs_cv_personality_linux32 = yes; then
1276 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1277 [Define to 1 if personality LINUX32 can be set.])
1280 dnl On Solaris 8 there's a compilation warning for term.h because
1281 dnl it doesn't define `bool'.
1282 AC_CHECK_HEADERS(term.h, , , -)
1284 AC_CHECK_DECLS([sys_siglist])
1285 if test $ac_cv_have_decl_sys_siglist != yes; then
1286 # For Tru64, at least:
1287 AC_CHECK_DECLS([__sys_siglist])
1288 if test $ac_cv_have_decl___sys_siglist = yes; then
1289 AC_DEFINE(sys_siglist, __sys_siglist,
1290 [Define to any substitute for sys_siglist.])
1295 dnl Check for speed_t typedef.
1296 AC_CACHE_CHECK(for speed_t, emacs_cv_speed_t,
1297 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <termios.h>]], [[speed_t x = 1;]])],
1298 emacs_cv_speed_t=yes, emacs_cv_speed_t=no)])
1299 if test $emacs_cv_speed_t = yes; then
1300 AC_DEFINE(HAVE_SPEED_T, 1,
1301 [Define to 1 if `speed_t' is declared by <termios.h>.])
1304 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1305 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1306 #if HAVE_SYS_SOCKET_H
1307 #include <sys/socket.h>
1309 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1310 #if HAVE_SYS_SOCKET_H
1311 #include <sys/socket.h>
1313 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1314 #if HAVE_SYS_SOCKET_H
1315 #include <sys/socket.h>
1318 dnl checks for structure members
1319 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1320 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1321 struct ifreq.ifr_addr,
1322 struct ifreq.ifr_addr.sa_len], , ,
1323 [AC_INCLUDES_DEFAULT
1324 #if HAVE_SYS_SOCKET_H
1325 #include <sys/socket.h>
1331 dnl Check for endianness.
1332 dnl AC_C_BIGENDIAN is done by gnulib.
1334 dnl check for Make feature
1335 dnl AC_PROG_MAKE_SET is done by Automake.
1340 dnl check for GNU Make if we have GCC and autodepend is on.
1341 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1342 AC_MSG_CHECKING([whether we are using GNU Make])
1344 testval=`${MAKE-make} --version 2>/dev/null | grep 'GNU Make'`
1345 if test "x$testval" != x; then
1348 ac_enable_autodepend=no
1350 AC_MSG_RESULT([$HAVE_GNU_MAKE])
1351 if test $HAVE_GNU_MAKE = yes; then
1352 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1353 SAVE_CFLAGS="$CFLAGS"
1354 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1355 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1356 CFLAGS="$SAVE_CFLAGS"
1357 test -f deps.d || ac_enable_autodepend=no
1359 AC_MSG_RESULT([$ac_enable_autodepend])
1361 if test $ac_enable_autodepend = yes; then
1362 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1363 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1364 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1365 deps_frag=autodeps.mk
1368 deps_frag=$srcdir/src/$deps_frag
1371 AC_SUBST_FILE(deps_frag)
1374 lisp_frag=$srcdir/src/lisp.mk
1375 AC_SUBST_FILE(lisp_frag)
1378 dnl checks for operating system services
1379 AC_SYS_LONG_FILE_NAMES
1381 #### Choose a window system.
1383 ## We leave window_system equal to none if
1384 ## we end up building without one. Any new window system should
1385 ## set window_system to an appropriate value and add objects to
1386 ## window-system-specific substs.
1390 if test "$no_x" != yes; then
1394 LD_SWITCH_X_SITE_RPATH=
1395 if test "${x_libraries}" != NONE; then
1396 if test -n "${x_libraries}"; then
1397 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1398 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1400 x_default_search_path=""
1401 x_search_path=${x_libraries}
1402 if test -z "${x_search_path}"; then
1403 x_search_path=/usr/lib
1405 for x_library in `echo ${x_search_path}: | \
1406 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1408 ${x_library}/X11/%L/%T/%N%C%S:\
1409 ${x_library}/X11/%l/%T/%N%C%S:\
1410 ${x_library}/X11/%T/%N%C%S:\
1411 ${x_library}/X11/%L/%T/%N%S:\
1412 ${x_library}/X11/%l/%T/%N%S:\
1413 ${x_library}/X11/%T/%N%S"
1414 if test x"${x_default_search_path}" = x; then
1415 x_default_search_path=${x_search_path}
1417 x_default_search_path="${x_search_path}:${x_default_search_path}"
1421 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1423 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1424 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1427 if test x"${x_includes}" = x; then
1428 bitmapdir=/usr/include/X11/bitmaps
1430 # accumulate include directories that have X11 bitmap subdirectories
1432 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1433 if test -d "${bmd}/X11/bitmaps"; then
1434 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1436 if test -d "${bmd}/bitmaps"; then
1437 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1440 if test ${bmd_acc} != "dummyval"; then
1441 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1448 tmp_CPPFLAGS="$CPPFLAGS"
1449 tmp_CFLAGS="$CFLAGS"
1450 CPPFLAGS="$CPPFLAGS -x objective-c"
1451 CFLAGS="$CFLAGS -x objective-c"
1452 TEMACS_LDFLAGS2="\${LDFLAGS}"
1454 if test "${with_ns}" != no; then
1455 if test "${opsys}" = darwin; then
1457 ns_appdir=`pwd`/nextstep/Emacs.app
1458 ns_appbindir=${ns_appdir}/Contents/MacOS
1459 ns_appresdir=${ns_appdir}/Contents/Resources
1460 ns_appsrc=Cocoa/Emacs.base
1461 elif test -f $GNUSTEP_CONFIG_FILE; then
1463 ns_appdir=`pwd`/nextstep/Emacs.app
1464 ns_appbindir=${ns_appdir}
1465 ns_appresdir=${ns_appdir}/Resources
1466 ns_appsrc=GNUstep/Emacs.base
1467 dnl FIXME sourcing this several times in subshells seems inefficient.
1468 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1469 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1470 dnl I seemed to need these as well with GNUstep-startup 0.25.
1471 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1472 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1473 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1474 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1475 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1476 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1477 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1478 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1479 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1483 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1484 dnl If they had chosen to either define it or not, we could have
1485 dnl just used AC_CHECK_DECL here.
1486 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1487 emacs_cv_objc_exceptions,
1488 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1489 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1493 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1494 if test $emacs_cv_objc_exceptions = yes; then
1495 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1496 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1497 [Define if GNUstep uses ObjC exceptions.])
1498 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1502 dnl This is only used while we test the NS headers, it gets reset below.
1503 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1505 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1506 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1507 files are missing or cannot be compiled.])])
1508 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1510 ns_have_nsinteger=yes,
1511 ns_have_nsinteger=no)
1512 if test $ns_have_nsinteger = yes; then
1513 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1517 AC_SUBST(TEMACS_LDFLAGS2)
1519 INSTALL_ARCH_INDEP_EXTRA=install-etc
1520 ns_self_contained=no
1523 if test "${HAVE_NS}" = yes; then
1524 if test "$with_toolkit_scroll_bars" = "no"; then
1525 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1528 window_system=nextstep
1529 # set up packaging dirs
1530 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1531 ns_self_contained=yes
1532 prefix=${ns_appresdir}
1533 exec_prefix=${ns_appbindir}
1534 dnl This one isn't really used, only archlibdir is.
1535 libexecdir="\${ns_appbindir}/libexec"
1536 archlibdir="\${ns_appbindir}/libexec"
1537 docdir="\${ns_appresdir}/etc"
1538 etcdir="\${ns_appresdir}/etc"
1539 dnl FIXME maybe set datarootdir instead.
1540 dnl That would also get applications, icons, man.
1541 infodir="\${ns_appresdir}/info"
1542 mandir="\${ns_appresdir}/man"
1543 lispdir="\${ns_appresdir}/lisp"
1544 leimdir="\${ns_appresdir}/leim"
1545 INSTALL_ARCH_INDEP_EXTRA=
1547 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o"
1549 CFLAGS="$tmp_CFLAGS"
1550 CPPFLAGS="$tmp_CPPFLAGS"
1551 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1552 AC_SUBST(ns_self_contained)
1554 AC_SUBST(NS_OBJC_OBJ)
1555 AC_SUBST(LIB_STANDARD)
1560 if test "${with_w32}" != no; then
1561 if test "${opsys}" != "cygwin"; then
1562 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin.])
1564 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1565 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1566 cannot be found.])])
1567 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native Windows GUI.])
1568 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1569 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1570 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1571 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1576 if test "${HAVE_W32}" = "yes"; then
1581 ## $window_system is now set to the window system we will
1589 case "${window_system}" in
1594 case "${with_x_toolkit}" in
1595 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1596 motif ) USE_X_TOOLKIT=MOTIF ;;
1598 term_header=gtkutil.h
1599 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1600 dnl USE_X_TOOLKIT is set.
1601 USE_X_TOOLKIT=none ;;
1602 gtk2 ) with_gtk2=yes
1603 term_header=gtkutil.h
1604 USE_X_TOOLKIT=none ;;
1605 gtk3 ) with_gtk3=yes
1606 term_header=gtkutil.h
1607 USE_X_TOOLKIT=none ;;
1608 no ) USE_X_TOOLKIT=none ;;
1609 dnl If user did not say whether to use a toolkit, make this decision later:
1610 dnl use the toolkit if we have gtk, or X11R5 or newer.
1611 * ) USE_X_TOOLKIT=maybe ;;
1615 term_header=nsterm.h
1618 term_header=w32term.h
1622 if test -n "${term_header}"; then
1623 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
1624 [Define to the header for the built-in window system.])
1627 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1628 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1629 if test "$HAVE_XSERVER" = true ||
1630 test -n "$DISPLAY" ||
1631 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1632 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1633 were found. You should install the relevant development files for X
1634 and for the toolkit you want, such as Gtk+, Lesstif or Motif. Also make
1635 sure you have development files for image handling, i.e.
1636 tiff, gif, jpeg, png and xpm.
1637 If you are sure you want Emacs compiled without X window support, pass
1643 ### If we're using X11, we should use the X menu package.
1646 yes ) HAVE_MENUS=yes ;;
1649 # Does the opsystem file prohibit the use of the GNU malloc?
1650 # Assume not, until told otherwise.
1654 [whether malloc is Doug Lea style],
1655 [emacs_cv_var_doug_lea_malloc],
1658 [[#include <malloc.h>
1659 static void hook (void) {}]],
1660 [[malloc_set_state (malloc_get_state ());
1661 __after_morecore_hook = hook;
1662 __malloc_initialize_hook = hook;]])],
1663 [emacs_cv_var_doug_lea_malloc=yes],
1664 [emacs_cv_var_doug_lea_malloc=no])])
1665 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1668 dnl See comments in aix4-2.h about maybe using system malloc there.
1671 ## darwin ld insists on the use of malloc routines in the System framework.
1672 darwin|sol2-10) system_malloc=yes ;;
1675 if test "${system_malloc}" = "yes"; then
1676 AC_DEFINE(SYSTEM_MALLOC, 1, [Define to use system malloc.])
1679 (The GNU allocators don't work with this system configuration.)"
1683 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1684 VMLIMIT_OBJ=vm-limit.o
1686 AC_SUBST(GMALLOC_OBJ)
1687 AC_SUBST(VMLIMIT_OBJ)
1689 if test "$doug_lea_malloc" = "yes" ; then
1690 if test "$GNU_MALLOC" = yes ; then
1692 (Using Doug Lea's new malloc from the GNU C Library.)"
1694 AC_DEFINE(DOUG_LEA_MALLOC, 1,
1695 [Define to 1 if you are using the GNU C Library.])
1697 ## Use mmap directly for allocating larger buffers.
1698 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
1699 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
1700 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
1702 gnu*) REL_ALLOC=no ;;
1706 if test x"${REL_ALLOC}" = x; then
1707 REL_ALLOC=${GNU_MALLOC}
1710 use_mmap_for_buffers=no
1712 cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
1716 if test $use_mmap_for_buffers = yes; then
1717 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
1721 LIBS="$LIBS_SYSTEM $LIBS"
1723 dnl If found, this defines HAVE_LIBDNET, which m/pmax.h checks,
1724 dnl and also adds -ldnet to LIBS, which Autoconf uses for checks.
1725 AC_CHECK_LIB(dnet, dnet_ntoa)
1726 dnl This causes -lresolv to get used in subsequent tests,
1727 dnl which causes failures on some systems such as HPUX 9.
1728 dnl AC_CHECK_LIB(resolv, gethostbyname)
1730 dnl FIXME replace main with a function we actually want from this library.
1731 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
1733 dnl Check if pthreads is available.
1735 AC_CHECK_HEADERS_ONCE(pthread.h)
1736 if test "$ac_cv_header_pthread_h"; then
1737 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
1738 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
1739 dnl testing for pthread_self if Emacs uses gmalloc.c.
1740 if test "$GMALLOC_OBJ" = gmalloc.o; then
1741 emacs_pthread_function=pthread_atfork
1743 emacs_pthread_function=pthread_self
1745 AC_CHECK_LIB(pthread, $emacs_pthread_function, HAVE_PTHREAD=yes)
1747 if test "$HAVE_PTHREAD" = yes; then
1748 case "${canonical}" in
1750 *) LIB_PTHREAD="-lpthread"
1751 LIBS="$LIB_PTHREAD $LIBS" ;;
1753 AC_DEFINE(HAVE_PTHREAD, 1, [Define to 1 if you have pthread (-lpthread).])
1755 AC_SUBST([LIB_PTHREAD])
1757 AC_CHECK_LIB(pthreads, cma_open)
1759 ## Note: when using cpp in s/aix4.2.h, this definition depended on
1760 ## HAVE_LIBPTHREADS. That was not defined earlier in configure when
1761 ## the system file was sourced. Hence the value of LIBS_SYSTEM
1762 ## added to LIBS in configure would never contain the pthreads part,
1763 ## but the value used in Makefiles might. FIXME?
1765 ## -lpthreads seems to be necessary for Xlib in X11R6, and should
1766 ## be harmless on older versions of X where it happens to exist.
1767 test "$opsys" = "aix4-2" && \
1768 test $ac_cv_lib_pthreads_cma_open = yes && \
1769 LIBS_SYSTEM="$LIBS_SYSTEM -lpthreads"
1771 dnl Check for need for bigtoc support on IBM AIX
1775 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1777 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1778 *) gdb_cv_bigtoc=-bbigtoc ;;
1781 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1782 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
1787 # Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
1788 # used for the tests that follow. We set them back to REAL_CFLAGS and
1789 # REAL_CPPFLAGS later on.
1791 REAL_CFLAGS="$CFLAGS"
1792 REAL_CPPFLAGS="$CPPFLAGS"
1794 if test "${HAVE_X11}" = "yes"; then
1795 DEFS="$C_SWITCH_X_SITE $DEFS"
1796 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
1798 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
1799 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
1801 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
1802 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
1803 # but it's more convenient here to set LD_RUN_PATH since this
1804 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
1805 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
1806 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
1810 if test "${opsys}" = "gnu-linux"; then
1811 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
1812 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1813 [[XOpenDisplay ("foo");]])],
1814 [xgnu_linux_first_failure=no],
1815 [xgnu_linux_first_failure=yes])
1816 if test "${xgnu_linux_first_failure}" = "yes"; then
1817 OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
1818 OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
1819 OLD_CPPFLAGS="$CPPFLAGS"
1821 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
1822 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
1823 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
1824 LIBS="$LIBS -b i486-linuxaout"
1825 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1826 [[XOpenDisplay ("foo");]])],
1827 [xgnu_linux_second_failure=no],
1828 [xgnu_linux_second_failure=yes])
1829 if test "${xgnu_linux_second_failure}" = "yes"; then
1830 # If we get the same failure with -b, there is no use adding -b.
1831 # So take it out. This plays safe.
1832 LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
1833 C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
1834 CPPFLAGS="$OLD_CPPFLAGS"
1845 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
1846 # header files included from there.
1847 AC_MSG_CHECKING(for Xkb)
1848 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
1849 #include <X11/XKBlib.h>]],
1850 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
1851 emacs_xkb=yes, emacs_xkb=no)
1852 AC_MSG_RESULT($emacs_xkb)
1853 if test $emacs_xkb = yes; then
1854 AC_DEFINE(HAVE_XKBGETKEYBOARD, 1, [Define to 1 if you have the XkbGetKeyboard function.])
1857 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
1858 XScreenNumberOfScreen)
1861 if test "${window_system}" = "x11"; then
1862 AC_MSG_CHECKING(X11 version 6)
1863 AC_CACHE_VAL(emacs_cv_x11_version_6,
1864 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
1865 [[#if XlibSpecificationRelease < 6
1868 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
1869 if test $emacs_cv_x11_version_6 = yes; then
1870 AC_MSG_RESULT(6 or newer)
1871 AC_DEFINE(HAVE_X11R6, 1,
1872 [Define to 1 if you have the X11R6 or newer version of Xlib.])
1873 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
1874 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
1878 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
1879 [Define if you have usable X11R6-style XIM support.])
1883 AC_MSG_RESULT(before 6)
1888 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
1890 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes"; then
1891 if test "${with_rsvg}" != "no"; then
1892 RSVG_REQUIRED=2.11.0
1893 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
1895 PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, HAVE_RSVG=yes, :)
1896 AC_SUBST(RSVG_CFLAGS)
1899 if test $HAVE_RSVG = yes; then
1900 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
1901 CFLAGS="$CFLAGS $RSVG_CFLAGS"
1902 LIBS="$RSVG_LIBS $LIBS"
1908 if test "${HAVE_X11}" = "yes"; then
1909 if test "${with_imagemagick}" != "no"; then
1910 ## 6.2.8 is the earliest version known to work, but earlier versions
1911 ## might work - let us know if you find one.
1912 ## 6.0.7 does not work. See bug#7955.
1913 IMAGEMAGICK_MODULE="Wand >= 6.2.8"
1914 PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
1915 AC_SUBST(IMAGEMAGICK_CFLAGS)
1916 AC_SUBST(IMAGEMAGICK_LIBS)
1918 if test $HAVE_IMAGEMAGICK = yes; then
1919 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
1920 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
1921 LIBS="$IMAGEMAGICK_LIBS $LIBS"
1922 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
1932 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
1935 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1937 dnl Checks for libraries.
1938 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1939 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
1940 AC_MSG_ERROR($GTK_PKG_ERRORS)
1942 if test "$pkg_check_gtk" = "yes"; then
1943 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
1944 GTK_OBJ=emacsgtkfixed.o
1945 term_header=gtkutil.h
1948 gtk3_pkg_errors="$GTK_PKG_ERRORS "
1952 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
1955 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1957 dnl Checks for libraries.
1958 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1959 if test "$pkg_check_gtk" = "no" &&
1960 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
1962 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
1966 if test x"$pkg_check_gtk" = xyes; then
1968 AC_SUBST(GTK_CFLAGS)
1970 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
1971 CFLAGS="$CFLAGS $GTK_CFLAGS"
1972 LIBS="$GTK_LIBS $LIBS"
1973 dnl Try to compile a simple GTK program.
1975 AC_CHECK_FUNCS(gtk_main, GTK_COMPILES=yes)
1976 if test "${GTK_COMPILES}" != "yes"; then
1977 if test "$USE_X_TOOLKIT" != "maybe"; then
1978 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
1982 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
1983 GTK_OBJ="gtkutil.o $GTK_OBJ"
1985 if $PKG_CONFIG --atleast-version=2.10 gtk+-2.0; then
1988 AC_MSG_WARN([[Your version of Gtk+ will have problems with
1989 closing open displays. This is no problem if you just use
1990 one display, but if you use more than one and close one of them
2000 if test "${HAVE_GTK}" = "yes"; then
2002 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2003 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2004 if test "$with_toolkit_scroll_bars" != no; then
2005 with_toolkit_scroll_bars=yes
2008 dnl Check if we have the old file selection dialog declared and
2009 dnl in the link library. In 2.x it may be in the library,
2010 dnl but not declared if deprecated featured has been selected out.
2011 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2012 HAVE_GTK_FILE_SELECTION=no
2013 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2014 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2015 #include <gtk/gtk.h>])
2016 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2017 AC_CHECK_FUNCS(gtk_file_selection_new)
2021 dnl Check for functions introduced in 2.14 and later.
2022 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2023 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2024 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2025 gtk_orientable_set_orientation \
2026 gtk_window_set_has_resize_grip)
2028 term_header=gtkutil.h
2031 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2032 dnl other platforms.
2035 if test "${with_dbus}" = "yes"; then
2036 PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
2037 if test "$HAVE_DBUS" = yes; then
2038 LIBS="$LIBS $DBUS_LIBS"
2039 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2040 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2041 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2043 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2044 dbus_type_is_valid \
2045 dbus_validate_bus_name \
2046 dbus_validate_path \
2047 dbus_validate_interface \
2048 dbus_validate_member)
2054 dnl GSettings has been tested under GNU/Linux only.
2056 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2057 PKG_CHECK_MODULES(GSETTINGS, gio-2.0 >= 2.26, HAVE_GSETTINGS=yes, HAVE_GSETTINGS=no)
2058 if test "$HAVE_GSETTINGS" = "yes"; then
2059 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2060 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2061 SETTINGS_LIBS="$GSETTINGS_LIBS"
2065 dnl GConf has been tested under GNU/Linux only.
2066 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2068 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2069 PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
2070 if test "$HAVE_GCONF" = yes; then
2071 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2072 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2073 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2074 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2078 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2079 PKG_CHECK_MODULES(GOBJECT, gobject-2.0 >= 2.0, HAVE_GOBJECT=yes, HAVE_GOBJECT=no)
2080 if test "$HAVE_GOBJECT" = "yes"; then
2081 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2082 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2084 SAVE_CFLAGS="$CFLAGS"
2086 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2087 LIBS="$SETTINGS_LIBS $LIBS"
2088 AC_CHECK_FUNCS([g_type_init])
2089 CFLAGS="$SAVE_CFLAGS"
2092 AC_SUBST(SETTINGS_CFLAGS)
2093 AC_SUBST(SETTINGS_LIBS)
2096 dnl SELinux is available for GNU/Linux only.
2099 if test "${with_selinux}" = "yes"; then
2100 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2101 if test "$HAVE_LIBSELINUX" = yes; then
2102 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2103 LIBSELINUX_LIBS=-lselinux
2106 AC_SUBST(LIBSELINUX_LIBS)
2109 HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=no
2110 if test "${with_gnutls}" = "yes" ; then
2111 PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6], HAVE_GNUTLS=yes, HAVE_GNUTLS=no)
2112 if test "${HAVE_GNUTLS}" = "yes"; then
2113 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2116 CFLAGS="$CFLAGS $LIBGNUTLS_CFLAGS"
2117 LIBS="$LIBGNUTLS_LIBS $LIBS"
2118 AC_CHECK_FUNCS(gnutls_certificate_set_verify_function, HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=yes)
2120 if test "${HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY}" = "yes"; then
2121 AC_DEFINE(HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY, 1, [Define if using GnuTLS certificate verification callbacks.])
2125 AC_SUBST(LIBGNUTLS_LIBS)
2126 AC_SUBST(LIBGNUTLS_CFLAGS)
2128 dnl Do not put whitespace before the #include statements below.
2129 dnl Older compilers (eg sunos4 cc) choke on it.
2132 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2133 if test "$with_xaw3d" != no; then
2134 AC_CACHE_VAL(emacs_cv_xaw3d,
2135 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2136 #include <X11/Intrinsic.h>
2137 #include <X11/Xaw3d/Simple.h>]],
2139 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2140 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2141 emacs_cv_xaw3d=no)])
2145 if test $emacs_cv_xaw3d = yes; then
2146 AC_MSG_CHECKING(for xaw3d)
2147 AC_MSG_RESULT([yes; using Lucid toolkit])
2151 AC_DEFINE(HAVE_XAW3D, 1,
2152 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2154 AC_MSG_CHECKING(for xaw3d)
2156 AC_MSG_CHECKING(for libXaw)
2157 AC_CACHE_VAL(emacs_cv_xaw,
2158 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2159 #include <X11/Intrinsic.h>
2160 #include <X11/Xaw/Simple.h>]],
2164 if test $emacs_cv_xaw = yes; then
2165 AC_MSG_RESULT([yes; using Lucid toolkit])
2168 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2169 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2171 AC_MSG_ERROR([No X toolkit could be found.
2172 If you are sure you want Emacs compiled without an X toolkit, pass
2174 to configure. Otherwise, install the development libraries for the toolkit
2175 that you want to use (e.g. Gtk+) and re-run configure.])
2180 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2183 if test "${USE_X_TOOLKIT}" != "none"; then
2184 AC_MSG_CHECKING(X11 toolkit version)
2185 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2186 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2187 [[#if XtSpecificationRelease < 6
2190 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2191 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2192 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2193 AC_MSG_RESULT(6 or newer)
2194 AC_DEFINE(HAVE_X11XTR6, 1,
2195 [Define to 1 if you have the X11R6 or newer version of Xt.])
2196 LIBXTR6="-lSM -lICE"
2198 ## Use libw.a along with X11R6 Xt.
2199 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2202 AC_MSG_RESULT(before 6)
2205 dnl If using toolkit, check whether libXmu.a exists.
2206 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2208 if test x$HAVE_X11XTR6 = xyes; then
2209 LIBS="-lXt -lSM -lICE $LIBS"
2213 AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
2214 test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
2215 dnl ac_cv_lib_Xmu_XmuConvertStandardSelection is also referenced below.
2219 dnl FIXME the logic here seems weird, but this is what cpp was doing.
2220 dnl Why not just test for libxmu in the normal way?
2223 ## These systems don't supply Xmu.
2225 test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
2230 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
2231 if test "${HAVE_X11}" = "yes"; then
2232 if test "${USE_X_TOOLKIT}" != "none"; then
2233 AC_CHECK_LIB(Xext, XShapeQueryExtension)
2238 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2239 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2240 if test -d /usr/include/openmotif; then
2241 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2242 emacs_cv_openmotif=yes
2243 case "$canonical" in
2244 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2245 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2248 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2251 emacs_cv_openmotif=no
2253 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2254 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2255 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2258 Motif version prior to 2.1.
2260 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2261 if test $emacs_cv_motif_version_2_1 = yes; then
2262 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2263 if test x$emacs_cv_openmotif = xyes; then
2264 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2267 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2268 # We put this in CFLAGS temporarily to precede other -I options
2269 # that might be in CFLAGS temporarily.
2270 # We put this in CPPFLAGS where it precedes the other -I options.
2271 OLD_CPPFLAGS=$CPPFLAGS
2273 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2274 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2275 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2277 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2278 if test $emacs_cv_lesstif = yes; then
2279 # Make sure this -I option remains in CPPFLAGS after it is set
2280 # back to REAL_CPPFLAGS.
2281 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2282 # have those other -I options anyway. Ultimately, having this
2283 # directory ultimately in CPPFLAGS will be enough.
2284 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2285 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2288 CPPFLAGS=$OLD_CPPFLAGS
2291 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2292 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2295 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2296 dnl using Motif or Xaw3d is available, and unless
2297 dnl --with-toolkit-scroll-bars=no was specified.
2299 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2300 [Define to 1 if we should use toolkit scroll bars.])dnl
2301 USE_TOOLKIT_SCROLL_BARS=no
2302 if test "${with_toolkit_scroll_bars}" != "no"; then
2303 if test "${USE_X_TOOLKIT}" != "none"; then
2304 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2305 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2307 USE_TOOLKIT_SCROLL_BARS=yes
2308 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2309 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2310 USE_TOOLKIT_SCROLL_BARS=yes
2312 elif test "${HAVE_GTK}" = "yes"; then
2313 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2314 USE_TOOLKIT_SCROLL_BARS=yes
2315 elif test "${HAVE_NS}" = "yes"; then
2316 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2317 USE_TOOLKIT_SCROLL_BARS=yes
2318 elif test "${HAVE_W32}" = "yes"; then
2319 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2320 USE_TOOLKIT_SCROLL_BARS=yes
2324 dnl See if XIM is available.
2325 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2326 #include <X11/Xlib.h>
2327 #include <X11/Xresource.h>]],
2328 [[XIMProc callback;]])],
2330 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2333 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2335 if test "${with_xim}" != "no"; then
2336 AC_DEFINE(USE_XIM, 1,
2337 [Define to 1 if we should use XIM, if it is available.])
2341 if test "${HAVE_XIM}" != "no"; then
2343 if test "$GCC" = yes; then
2344 CFLAGS="$CFLAGS --pedantic-errors"
2346 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2347 #include <X11/Xlib.h>
2348 #include <X11/Xresource.h>]],
2354 XPointer *client_data;
2356 /* If we're not using GCC, it's probably not XFree86, and this is
2357 probably right, but we can't use something like --pedantic-errors. */
2358 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2359 char*, XIMProc, XPointer*);
2361 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2363 [emacs_cv_arg6_star=yes])
2364 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2365 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2366 either XPointer or XPointer*.])dnl
2367 if test "$emacs_cv_arg6_star" = yes; then
2368 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2370 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2375 ### Start of font-backend (under any platform) section.
2376 # (nothing here yet -- this is a placeholder)
2377 ### End of font-backend (under any platform) section.
2379 ### Start of font-backend (under X11) section.
2380 if test "${HAVE_X11}" = "yes"; then
2381 PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
2383 ## Use -lXft if available, unless `--with-xft=no'.
2385 if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2388 if test "x${with_xft}" != "xno"; then
2390 PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
2391 ## Because xftfont.c uses XRenderQueryExtension, we also
2392 ## need to link to -lXrender.
2394 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2395 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2396 OLD_CPPFLAGS="$CPPFLAGS"
2397 OLD_CFLAGS="$CFLAGS"
2399 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2400 CFLAGS="$CFLAGS $XFT_CFLAGS"
2401 XFT_LIBS="-lXrender $XFT_LIBS"
2402 LIBS="$XFT_LIBS $LIBS"
2403 AC_CHECK_HEADER(X11/Xft/Xft.h,
2404 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS))
2406 if test "${HAVE_XFT}" = "yes"; then
2407 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2409 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2411 CPPFLAGS="$OLD_CPPFLAGS"
2412 CFLAGS="$OLD_CFLAGS"
2414 fi # "${HAVE_XFT}" = "yes"
2415 fi # "$HAVE_XFT" != no
2416 fi # "x${with_xft}" != "xno"
2418 ## We used to allow building with FreeType and without Xft.
2419 ## However, the ftx font backend driver is not in good shape.
2420 if test "$HAVE_XFT" != "yes"; then
2421 dnl For the "Does Emacs use" message at the end.
2425 dnl Strict linkers fail with
2426 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2427 dnl if -lfreetype is not specified.
2428 dnl The following is needed to set FREETYPE_LIBS.
2429 PKG_CHECK_MODULES(FREETYPE, freetype2, HAVE_FREETYPE=yes,
2432 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2436 if test "${HAVE_FREETYPE}" = "yes"; then
2437 AC_DEFINE(HAVE_FREETYPE, 1,
2438 [Define to 1 if using the freetype and fontconfig libraries.])
2439 if test "${with_libotf}" != "no"; then
2440 PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
2442 if test "$HAVE_LIBOTF" = "yes"; then
2443 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2444 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2445 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2446 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2447 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2448 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2449 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2453 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2454 dnl Does the new font backend require it, or can it work without it?
2458 if test "${HAVE_LIBOTF}" = yes; then
2459 if test "${with_m17n_flt}" != "no"; then
2460 PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
2461 if test "$HAVE_M17N_FLT" = "yes"; then
2462 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2473 ### End of font-backend (under X11) section.
2475 AC_SUBST(FREETYPE_CFLAGS)
2476 AC_SUBST(FREETYPE_LIBS)
2477 AC_SUBST(FONTCONFIG_CFLAGS)
2478 AC_SUBST(FONTCONFIG_LIBS)
2479 AC_SUBST(LIBOTF_CFLAGS)
2480 AC_SUBST(LIBOTF_LIBS)
2481 AC_SUBST(M17N_FLT_CFLAGS)
2482 AC_SUBST(M17N_FLT_LIBS)
2484 ### Use -lXpm if available, unless `--with-xpm=no'.
2488 if test "${HAVE_W32}" = "yes"; then
2489 if test "${with_xpm}" != "no"; then
2490 SAVE_CPPFLAGS="$CPPFLAGS"
2491 SAVE_LDFLAGS="$LDFLAGS"
2492 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
2493 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
2494 AC_CHECK_HEADER(X11/xpm.h,
2495 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
2496 if test "${HAVE_XPM}" = "yes"; then
2497 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2498 AC_EGREP_CPP(no_return_alloc_pixels,
2499 [#include "X11/xpm.h"
2500 #ifndef XpmReturnAllocPixels
2501 no_return_alloc_pixels
2503 ], HAVE_XPM=no, HAVE_XPM=yes)
2505 if test "${HAVE_XPM}" = "yes"; then
2506 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
2510 CPPFLAGS="$SAVE_CPPFLAGS"
2511 LDFLAGS="$SAVE_LDFLAGS"
2516 if test "${HAVE_XPM}" = "yes"; then
2517 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm libary (-lXpm).])
2522 if test "${HAVE_X11}" = "yes"; then
2523 if test "${with_xpm}" != "no"; then
2524 AC_CHECK_HEADER(X11/xpm.h,
2525 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2526 if test "${HAVE_XPM}" = "yes"; then
2527 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2528 AC_EGREP_CPP(no_return_alloc_pixels,
2529 [#include "X11/xpm.h"
2530 #ifndef XpmReturnAllocPixels
2531 no_return_alloc_pixels
2533 ], HAVE_XPM=no, HAVE_XPM=yes)
2535 if test "${HAVE_XPM}" = "yes"; then
2543 if test "${HAVE_XPM}" = "yes"; then
2544 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2551 ### Use -ljpeg if available, unless `--with-jpeg=no'.
2554 if test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2555 if test "${with_jpeg}" != "no"; then
2556 dnl Checking for jpeglib.h can lose because of a redefinition of
2558 AC_CHECK_HEADER(jerror.h,
2559 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
2562 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2563 if test "${HAVE_JPEG}" = "yes"; then
2564 AC_DEFINE(HAVE_JPEG)
2565 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2566 [#include <jpeglib.h>
2567 version=JPEG_LIB_VERSION
2569 [AC_DEFINE(HAVE_JPEG)],
2570 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2573 if test "${HAVE_JPEG}" = "yes"; then
2579 ### Use -lpng if available, unless `--with-png=no'.
2582 if test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2583 if test "${with_png}" != "no"; then
2584 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
2585 # in /usr/include/libpng.
2586 AC_CHECK_HEADERS(png.h libpng/png.h, break)
2587 if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
2588 AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
2592 if test "${HAVE_PNG}" = "yes"; then
2593 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2594 LIBPNG="-lpng -lz -lm"
2596 AC_CHECK_DECL(png_longjmp,
2598 [AC_DEFINE(PNG_DEPSTRUCT, [],
2599 [Define to empty to suppress deprecation warnings when building
2600 with --enable-gcc-warnings and with libpng versions before 1.5,
2601 which lack png_longjmp.])],
2602 [[#ifdef HAVE_LIBPNG_PNG_H
2603 # include <libpng/png.h>
2612 ### Use -ltiff if available, unless `--with-tiff=no'.
2615 if test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2616 if test "${with_tiff}" != "no"; then
2617 AC_CHECK_HEADER(tiffio.h,
2619 # At least one tiff package requires the jpeg library.
2620 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
2621 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
2624 if test "${HAVE_TIFF}" = "yes"; then
2625 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
2626 dnl FIXME -lz -lm, as per libpng?
2632 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
2635 if test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
2636 || test "${HAVE_W32}" = "yes"; then
2637 AC_CHECK_HEADER(gif_lib.h,
2638 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
2639 # Earlier versions can crash Emacs.
2640 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])
2642 if test "$HAVE_GIF" = yes; then
2644 elif test "$HAVE_GIF" = maybe; then
2645 # If gif_lib.h but no libgif, try libungif.
2646 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
2647 test "$HAVE_GIF" = yes && LIBGIF=-lungif
2650 if test "${HAVE_GIF}" = "yes"; then
2651 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
2656 dnl Check for required libraries.
2657 if test "${HAVE_X11}" = "yes"; then
2660 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
2661 MISSING="libXpm" && WITH_NO="--with-xpm=no"
2662 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
2663 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
2664 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
2665 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
2666 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
2667 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
2668 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
2669 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
2671 if test "X${MISSING}" != X; then
2672 AC_MSG_ERROR([The following required libraries were not found:
2674 Maybe some development libraries/packages are missing?
2675 If you don't want to link with them give
2677 as options to configure])
2681 ### Use -lgpm if available, unless `--with-gpm=no'.
2684 if test "${with_gpm}" != "no"; then
2685 AC_CHECK_HEADER(gpm.h,
2686 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
2688 if test "${HAVE_GPM}" = "yes"; then
2689 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
2695 dnl Check for malloc/malloc.h on darwin
2696 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
2699 ### Use NeXTstep API to implement GUI.
2700 if test "${HAVE_NS}" = "yes"; then
2701 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
2702 if test "${NS_IMPL_COCOA}" = "yes"; then
2703 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
2705 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
2706 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
2707 # See also .m.o rule in Makefile.in */
2708 # FIXME: are all these flags really needed? Document here why. */
2709 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
2710 ## Extra CFLAGS applied to src/*.m files.
2711 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"
2713 # We also have mouse menus.
2718 if test "${HAVE_W32}" = "yes"; then
2722 ### Use session management (-lSM -lICE) if available
2725 if test "${HAVE_X11}" = "yes"; then
2726 AC_CHECK_HEADER(X11/SM/SMlib.h,
2727 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
2729 if test "${HAVE_X_SM}" = "yes"; then
2730 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
2734 *) LIBS="$LIBXSM $LIBS" ;;
2740 ### Use libxml (-lxml2) if available
2742 if test "${with_xml2}" != "no"; then
2743 ### I'm not sure what the version number should be, so I just guessed.
2744 PKG_CHECK_MODULES(LIBXML2, libxml-2.0 > 2.6.17, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2745 if test "${HAVE_LIBXML2}" = "yes"; then
2746 LIBS="$LIBXML2_LIBS $LIBS"
2747 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2748 if test "${HAVE_LIBXML2}" = "yes"; then
2749 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
2756 AC_SUBST(LIBXML2_LIBS)
2757 AC_SUBST(LIBXML2_CFLAGS)
2759 # If netdb.h doesn't declare h_errno, we must declare it by hand.
2760 AC_CACHE_CHECK(whether netdb declares h_errno,
2761 emacs_cv_netdb_declares_h_errno,
2762 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
2763 [[return h_errno;]])],
2764 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
2765 if test $emacs_cv_netdb_declares_h_errno = yes; then
2766 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
2769 # sqrt and other floating-point functions such as fmod and frexp
2770 # are found in -lm on most systems.
2771 AC_CHECK_LIB(m, sqrt)
2773 # Check for mail-locking functions in a "mail" library. Probably this should
2774 # have the same check as for liblockfile below.
2775 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
2776 if test $have_mail = yes; then
2778 LIBS="$LIBS_MAIL $LIBS"
2779 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
2783 dnl Debian, at least:
2784 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
2785 if test $have_lockfile = yes; then
2786 LIBS_MAIL=-llockfile
2787 LIBS="$LIBS_MAIL $LIBS"
2788 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
2790 # If we have the shared liblockfile, assume we must use it for mail
2791 # locking (e.g. Debian). If we couldn't link against liblockfile
2792 # (no liblockfile.a installed), ensure that we don't need to.
2793 dnl This works for files generally, not just executables.
2794 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
2795 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
2796 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
2797 if test $ac_cv_prog_liblockfile = yes; then
2798 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
2799 This probably means that movemail could lose mail.
2800 There may be a `development' package to install containing liblockfile.])
2803 AC_CHECK_HEADERS_ONCE(maillock.h)
2806 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
2807 ## interlock access to the mail spool. The alternative is a lock file named
2808 ## /usr/spool/mail/$USER.lock.
2811 aix4-2) mail_lock="lockf" ;;
2813 gnu|freebsd|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
2815 ## On GNU/Linux systems, both methods are used by various mail programs.
2816 ## I assume most people are using newer mailers that have heard of flock.
2817 ## Change this if you need to.
2818 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
2819 ## configure gets the right answers, and that means *NOT* using flock.
2820 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
2821 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
2822 ## Debian maintainer hasn't provided a clean fix for Emacs.
2823 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
2824 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
2825 ## correct logic. -- fx
2826 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
2827 ## liblockfile is a Free Software replacement for libmail, used on
2828 ## Debian systems and elsewhere. -rfr.
2831 if test $have_mail = yes || test $have_lockfile = yes; then
2832 test $ac_cv_header_maillock_h = yes && mail_lock=no
2838 case "$mail_lock" in
2839 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
2841 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
2843 *) BLESSMAIL_TARGET="need-blessmail" ;;
2845 AC_SUBST(BLESSMAIL_TARGET)
2848 AC_CHECK_FUNCS(gethostname \
2849 closedir getrusage get_current_dir_name \
2851 fpathconf select euidaccess getpagesize setlocale \
2852 utimes getrlimit setrlimit setpgid getcwd shutdown getaddrinfo \
2853 __fpending strsignal setitimer \
2854 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
2855 gai_strerror mkstemp getline getdelim fsync sync \
2856 difftime posix_memalign \
2857 getpwent endpwent getgrent endgrent \
2859 cfmakeraw cfsetspeed copysign __executable_start)
2861 dnl getwd appears to be buggy on SVR4.2, so we don't use it.
2862 if test $opsys = unixware; then
2863 dnl In case some other test ends up checking for getwd.
2864 AC_DEFINE(BROKEN_GETWD, 1, [Define if getwd should not be used.])
2866 AC_CHECK_FUNCS(getwd)
2869 ## Eric Backus <ericb@lsid.hp.com> says, HP-UX 9.x on HP 700 machines
2870 ## has a broken `rint' in some library versions including math library
2871 ## version number A.09.05.
2872 ## You can fix the math library by installing patch number PHSS_4630.
2873 ## But we can fix it more reliably for Emacs by just not using rint.
2874 ## We also skip HAVE_RANDOM - see comments in src/conf_post.h.
2877 *) AC_CHECK_FUNCS(random rint) ;;
2880 dnl Cannot use AC_CHECK_FUNCS
2881 AC_CACHE_CHECK([for __builtin_unwind_init],
2882 emacs_cv_func___builtin_unwind_init,
2883 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
2884 emacs_cv_func___builtin_unwind_init=yes,
2885 emacs_cv_func___builtin_unwind_init=no)])
2886 if test $emacs_cv_func___builtin_unwind_init = yes; then
2887 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
2888 [Define to 1 if you have the `__builtin_unwind_init' function.])
2891 AC_CHECK_HEADERS_ONCE(sys/un.h)
2898 AC_CHECK_FUNCS(grantpt)
2900 # PTY-related GNU extensions.
2901 AC_CHECK_FUNCS(getpt posix_openpt)
2903 # Check this now, so that we will NOT find the above functions in ncurses.
2904 # That is because we have not set up to link ncurses in lib-src.
2905 # It's better to believe a function is not available
2906 # than to expect to find it in ncurses.
2907 # Also we need tputs and friends to be able to build at all.
2908 AC_MSG_CHECKING([for library containing tputs])
2909 # Run a test program that contains a call to tputs, a call that is
2910 # never executed. This tests whether a pre-'main' dynamic linker
2911 # works with the library. It's too much trouble to actually call
2912 # tputs in the test program, due to portability hassles. When
2913 # cross-compiling, assume the test program will run if it links.
2914 AC_DEFUN([tputs_link_source], [
2916 [[extern void tputs (const char *, int, int (*)(int));
2917 int main (int argc, char **argv)
2920 tputs (argv[0], 0, 0);
2924 # Maybe curses should be tried earlier?
2925 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
2926 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
2928 if test -z "$tputs_library"; then
2932 LIBS_TERMCAP=-l$tputs_library
2934 LIBS="$LIBS_TERMCAP $LIBS"
2936 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
2937 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
2939 if test "X$msg" != Xno; then
2943 AC_MSG_RESULT([$msg])
2944 if test "X$msg" = Xno; then
2945 AC_MSG_ERROR([The required function `tputs' was not found in any library.
2946 The following libraries were tried (in order):
2947 libtinfo, libncurses, libterminfo, libtermcap, libcurses
2948 Please try installing whichever of these libraries is most appropriate
2949 for your system, together with its header files.
2950 For example, a libncurses-dev(el) or similar package.])
2953 ## Use termcap instead of terminfo?
2954 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
2956 ## FIXME? In the cases below where we unconditionally set
2957 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
2958 ## if that was found above to have tputs.
2959 ## Should we use the gnu* logic everywhere?
2961 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
2962 ## The ncurses library has been moved out of the System framework in
2963 ## Mac OS X 10.2. So if configure detects it, set the command-line
2964 ## option to use it.
2965 darwin) LIBS_TERMCAP="-lncurses" ;;
2967 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
2970 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
2971 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
2972 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
2973 [[#if __FreeBSD_version < 400000
2976 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
2978 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
2980 if test $emacs_cv_freebsd_terminfo = yes; then
2981 LIBS_TERMCAP="-lncurses"
2984 LIBS_TERMCAP="-ltermcap"
2989 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
2991 LIBS_TERMCAP="-ltermcap"
2995 openbsd) LIBS_TERMCAP="-lncurses" ;;
2997 ## hpux: Make sure we get select from libc rather than from libcurses
2998 ## because libcurses on HPUX 10.10 has a broken version of select.
2999 ## We used to use -lc -lcurses, but this may be cleaner.
3000 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3001 # set that way, now it uses the default). Isn't this a contradiction?
3002 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3006 TERMCAP_OBJ=tparam.o
3007 if test $TERMINFO = yes; then
3008 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3009 TERMCAP_OBJ=terminfo.o
3011 AC_SUBST(LIBS_TERMCAP)
3012 AC_SUBST(TERMCAP_OBJ)
3015 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3016 # On Darwin, res_init appears not to be useful: see bug#562 and
3017 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3020 if test $opsys != darwin; then
3022 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3023 #include <arpa/nameser.h>
3024 #include <resolv.h>]],
3025 [[return res_init();]])],
3026 have_res_init=yes, have_res_init=no)
3027 if test "$have_res_init" = no; then
3029 LIBS="$LIBS -lresolv"
3030 AC_MSG_CHECKING(for res_init with -lresolv)
3031 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3032 #include <arpa/nameser.h>
3033 #include <resolv.h>]],
3034 [[return res_init();]])],
3035 have_res_init=yes, have_res_init=no)
3036 AC_MSG_RESULT($have_res_init)
3037 if test "$have_res_init" = yes ; then
3043 if test "$have_res_init" = yes; then
3044 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3048 # Do we need the Hesiod library to provide the support routines?
3049 dnl FIXME? Should we be skipping this on Darwin too?
3051 if test "$with_hesiod" != no ; then
3052 # Don't set $LIBS here -- see comments above. FIXME which comments?
3053 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3054 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3055 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3056 if test "$resolv" = yes ; then
3061 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3062 hesiod=yes, :, $RESOLVLIB)])
3064 if test x"$hesiod" = xyes; then
3065 AC_DEFINE(HAVE_LIBHESIOD, 1,
3066 [Define to 1 if you have the hesiod library (-lhesiod).])
3072 # Do we need libresolv (due to res_init or Hesiod)?
3073 if test "$resolv" = yes && test $opsys != darwin; then
3074 AC_DEFINE(HAVE_LIBRESOLV, 1,
3075 [Define to 1 if you have the resolv library (-lresolv).])
3082 # These tell us which Kerberos-related libraries to use.
3089 if test "${with_kerberos}" != no; then
3090 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3091 if test $have_com_err = yes; then
3092 COM_ERRLIB=-lcom_err
3093 LIBS="$COM_ERRLIB $LIBS"
3094 AC_DEFINE(HAVE_LIBCOM_ERR, 1, [Define to 1 if you have the `com_err' library (-lcom_err).])
3096 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3097 if test $have_crypto = yes; then
3099 LIBS="$CRYPTOLIB $LIBS"
3100 AC_DEFINE(HAVE_LIBCRYPTO, 1, [Define to 1 if you have the `crypto' library (-lcrypto).])
3102 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3103 if test $have_k5crypto = yes; then
3104 CRYPTOLIB=-lk5crypto
3105 LIBS="$CRYPTOLIB $LIBS"
3106 AC_DEFINE(HAVE_LIBK5CRYPTO, 1, [Define to 1 if you have the `k5crypto' library (-lk5crypto).])
3108 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3109 if test $have_krb5=yes; then
3111 LIBS="$KRB5LIB $LIBS"
3112 AC_DEFINE(HAVE_LIBKRB5, 1, [Define to 1 if you have the `krb5' library (-lkrb5).])
3114 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3115 if test "${with_kerberos5}" = no; then
3116 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3117 if test $have_des425 = yes; then
3119 LIBS="$DESLIB $LIBS"
3120 AC_DEFINE(HAVE_LIBDES425, 1, [Define to 1 if you have the `des425' library (-ldes425).])
3122 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3123 if test $have_des = yes; then
3125 LIBS="$DESLIB $LIBS"
3126 AC_DEFINE(HAVE_LIBDES, 1, [Define to 1 if you have the `des' library (-ldes).])
3129 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3130 if test $have_krb4 = yes; then
3132 LIBS="$KRB4LIB $LIBS"
3133 AC_DEFINE(HAVE_LIBKRB4, 1, [Define to 1 if you have the `krb4' library (-lkrb4).])
3135 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3136 if test $have_krb = yes; then
3138 LIBS="$KRB4LIB $LIBS"
3139 AC_DEFINE(HAVE_LIBKRB, 1, [Define to 1 if you have the `krb' library (-lkrb).])
3144 if test "${with_kerberos5}" != no; then
3145 AC_CHECK_HEADERS(krb5.h,
3146 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3147 [#include <krb5.h>])])
3149 AC_CHECK_HEADERS(des.h,,
3150 [AC_CHECK_HEADERS(kerberosIV/des.h,,
3151 [AC_CHECK_HEADERS(kerberos/des.h)])])
3152 AC_CHECK_HEADERS(krb.h,,
3153 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3154 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3156 AC_CHECK_HEADERS(com_err.h)
3159 AC_SUBST(COM_ERRLIB)
3165 AC_CHECK_FUNCS_ONCE(tzset)
3166 AC_MSG_CHECKING(whether localtime caches TZ)
3167 AC_CACHE_VAL(emacs_cv_localtime_cache,
3168 [if test x$ac_cv_func_tzset = xyes; then
3169 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3170 char TZ_GMT0[] = "TZ=GMT0";
3171 char TZ_PST8[] = "TZ=PST8";
3174 time_t now = time ((time_t *) 0);
3175 int hour_GMT0, hour_unset;
3176 if (putenv (TZ_GMT0) != 0)
3178 hour_GMT0 = localtime (&now)->tm_hour;
3180 hour_unset = localtime (&now)->tm_hour;
3181 if (putenv (TZ_PST8) != 0)
3183 if (localtime (&now)->tm_hour == hour_GMT0)
3186 if (localtime (&now)->tm_hour != hour_unset)
3189 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3190 [# If we have tzset, assume the worst when cross-compiling.
3191 emacs_cv_localtime_cache=yes])
3193 # If we lack tzset, report that localtime does not cache TZ,
3194 # since we can't invalidate the cache if we don't have tzset.
3195 emacs_cv_localtime_cache=no
3197 AC_MSG_RESULT($emacs_cv_localtime_cache)
3198 if test $emacs_cv_localtime_cache = yes; then
3199 AC_DEFINE(LOCALTIME_CACHE, 1,
3200 [Define to 1 if localtime caches TZ.])
3204 AC_CHECK_FUNC(socket, , ok_so_far=no)
3205 if test $ok_so_far = yes; then
3206 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3208 if test $ok_so_far = yes; then
3209 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3211 if test $ok_so_far = yes; then
3212 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3213 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3214 [Define to 1 if you have inet sockets.])
3217 if test -f /usr/lpp/X11/bin/smt.exp; then
3218 AC_DEFINE(HAVE_AIX_SMT_EXP, 1,
3219 [Define to 1 if the file /usr/lpp/X11/bin/smt.exp exists.])
3222 AC_MSG_CHECKING(whether system supports dynamic ptys)
3223 if test -d /dev/pts && ls -d /dev/ptmx > /dev/null 2>&1 ; then
3225 AC_DEFINE(HAVE_DEV_PTMX, 1, [Define to 1 if dynamic ptys are supported.])
3230 dnl Check for a Solaris 2.4 vfork bug that Autoconf misses (through 2.69).
3231 dnl This can be removed once we assume Autoconf 2.70.
3233 *-solaris2.4 | *-solaris2.4.*)
3234 dnl Disable the Autoconf-generated vfork test.
3235 : ${ac_cv_func_vfork_works=no};;
3240 AC_CHECK_FUNCS(snprintf)
3242 dnl Adapted from Haible's version.
3243 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3244 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3245 [[char* cs = nl_langinfo(CODESET);]])],
3246 emacs_cv_langinfo_codeset=yes,
3247 emacs_cv_langinfo_codeset=no)
3249 if test $emacs_cv_langinfo_codeset = yes; then
3250 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3251 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3256 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3257 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3258 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3259 if test "$emacs_cv_c_restrict_arr" = yes; then
3260 AC_DEFINE(__restrict_arr, __restrict,
3261 [Define to compiler's equivalent of C99 restrict keyword in array
3262 declarations. Define as empty for no equivalent.])
3265 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3266 dnl how the tty code is related to POSIX and/or other versions of termios.
3267 dnl The following looks like a useful start.
3269 dnl AC_SYS_POSIX_TERMIOS
3270 dnl if test $ac_cv_sys_posix_termios = yes; then
3271 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3272 dnl and macros for terminal control.])
3273 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3276 dnl Turned on June 1996 supposing nobody will mind it.
3277 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3278 in the full name stands for the login id.])
3280 dnl Every platform that uses configure (ie every non-MS platform)
3281 dnl supports this. There is a create-lockfiles option you can
3282 dnl customize if you do not want the lock files to be written.
3283 dnl So it is not clear that this #define still needs to exist.
3284 AC_DEFINE(CLASH_DETECTION, 1, [Define if you want lock files to be written,
3285 so that Emacs can tell instantly when you try to modify a file that
3286 someone else has modified in his/her Emacs.])
3288 dnl Everybody supports this, except MS.
3289 dnl Seems like the kind of thing we should be testing for, though.
3290 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3291 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3293 dnl Everybody supports this, except MS-DOS.
3294 dnl Seems like the kind of thing we should be testing for, though.
3295 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3296 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3297 4.2-compatible sockets.])
3299 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3301 AC_DEFINE(NULL_DEVICE, ["/dev/null"], [Name of the file to open to get
3302 a null file, or a data sink.])
3304 AC_DEFINE(SEPCHAR, [':'], [Character that separates PATH elements.])
3306 dnl Everybody supports this, except MS-DOS.
3307 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3309 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3312 AC_DEFINE(DIRECTORY_SEP, ['/'],
3313 [Character that separates directories in a file name.])
3315 dnl Only used on MS platforms.
3316 AH_TEMPLATE(DEVICE_SEP, [Character that separates a device in a file name.])
3318 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
3319 [Returns true if character is a device separator.])
3321 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
3322 [Returns true if character is a directory separator.])
3324 dnl On MS, this also accepts IS_DEVICE_SEP.
3325 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
3326 [Returns true if character is any form of separator.])
3329 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
3333 dnl Unfortunately without libXmu we cannot support EditRes.
3334 if test x$ac_cv_lib_Xmu_XmuConvertStandardSelection != xyes; then
3335 AC_DEFINE(NO_EDITRES, 1)
3340 dnl Assar Westerlund <assar@sics.se> says this is necessary for
3341 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
3342 AC_DEFINE(NO_EDITRES, 1)
3348 irix6-5 | sol2* | unixware )
3349 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
3350 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
3351 dnl need the constant to dimension an array. So wire in the appropriate
3353 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
3357 emacs_broken_SIGIO=no
3360 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
3361 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
3362 hpux* | irix6-5 | openbsd | sol2* | unixware )
3363 emacs_broken_SIGIO=yes
3367 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
3368 dnl the way this system works, libc functions that return malloced
3369 dnl memory use the libc malloc implementation. Calling xfree or
3370 dnl xrealloc on the results of such functions results in a crash.
3372 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
3373 dnl but that does not currently work on this system.
3375 dnl It is possible to completely override the malloc implementation on
3376 dnl AIX, but that involves putting the malloc functions in a shared
3377 dnl library and setting the MALLOCTYPE environment variable to point to
3378 dnl that shared library.
3380 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
3381 dnl to avoid a crash just use the Emacs implementation for that function.
3383 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
3384 dnl of this file, so that we do not check for get_current_dir_name
3385 dnl on AIX. But that might be fragile if something else ends
3386 dnl up testing for get_current_dir_name as a dependency.
3387 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
3388 get_current_dir_name should not be used.])
3392 dnl Circumvent a bug in FreeBSD. In the following sequence of
3393 dnl writes/reads on a PTY, read(2) returns bogus data:
3395 dnl write(2) 1022 bytes
3396 dnl write(2) 954 bytes, get EAGAIN
3397 dnl read(2) 1024 bytes in process_read_output
3398 dnl read(2) 11 bytes in process_read_output
3400 dnl That is, read(2) returns more bytes than have ever been written
3401 dnl successfully. The 1033 bytes read are the 1022 bytes written
3402 dnl successfully after processing (for example with CRs added if the
3403 dnl terminal is set up that way which it is here). The same bytes will
3404 dnl be seen again in a later read(2), without the CRs.
3405 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
3406 work around an issue when reading from a PTY.])
3412 dnl FIXME Can't we test if this exists (eg /proc/$$)?
3413 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
3418 darwin | freebsd | netbsd | openbsd )
3419 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
3420 close a pty to make it a controlling terminal (it is already a
3421 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
3425 dnl FIXME Surely we can test for this rather than hard-code it.
3427 netbsd | openbsd) sound_device="/dev/audio" ;;
3428 *) sound_device="/dev/dsp" ;;
3432 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
3433 [Name of the default sound device.])
3436 dnl Emacs can read input using SIGIO and buffering characters itself,
3437 dnl or using CBREAK mode and making C-g cause SIGINT.
3438 dnl The choice is controlled by the variable interrupt_input.
3440 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
3442 dnl Emacs uses the presence of the USABLE_SIGIO macro
3443 dnl to indicate whether or not signal-driven I/O is possible. It uses
3444 dnl INTERRUPT_INPUT to decide whether to use it by default.
3446 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
3447 dnl CBREAK mode has two disadvantages
3448 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
3449 dnl I hear that in system V this problem does not exist.
3450 dnl 2) Control-G causes output to be discarded.
3451 dnl I do not know whether this can be fixed in system V.
3453 dnl Another method of doing input is planned but not implemented.
3454 dnl It would have Emacs fork off a separate process
3455 dnl to read the input and send it to the true Emacs process
3458 darwin | gnu-linux | gnu-kfreebsd )
3459 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
3464 dnl If the system's imake configuration file defines `NeedWidePrototypes'
3465 dnl as `NO', we must define NARROWPROTO manually. Such a define is
3466 dnl generated in the Makefile generated by `xmkmf'. If we don't define
3467 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
3468 dnl taking float or double parameters.
3470 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
3471 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
3472 file defines `NeedWidePrototypes' as `NO'.])
3477 dnl Used in process.c, this must be a loop, even if it only runs once.
3478 dnl (Except on SGI; see below. Take that, clarity and consistency!)
3479 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
3480 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
3481 dnl trying suffixes 0-16.
3482 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
3483 first PTY, if PTYs are supported.])
3484 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
3485 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
3486 end of a PTY, if non-standard.])
3487 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
3488 end of a PTY, if non-standard.])
3492 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
3493 dnl You allocate a pty by opening /dev/ptc to get the master side.
3494 dnl To get the name of the slave side, you just ttyname() the master side.
3495 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
3496 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
3500 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3501 dnl multi-line AC_DEFINEs are hard. :(
3502 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)])
3503 AC_DEFINE(PTY_NAME_SPRINTF, [])
3504 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3507 dnl FIXME? Maybe use same as freebsd - see bug#12040.
3509 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3510 dnl Not used, because PTY_ITERATION is defined.
3511 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3512 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
3513 dnl But we don't have to block SIGCHLD because it is blocked in the
3514 dnl implementation of grantpt.
3515 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (0)])
3516 AC_DEFINE(PTY_NAME_SPRINTF, [])
3517 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3521 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3524 gnu-linux | gnu-kfreebsd | freebsd | netbsd )
3526 if test "x$ac_cv_func_grantpt" = xyes; then
3527 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
3528 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3529 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
3530 dnl to prevent sigchld_handler from intercepting the child's death.
3531 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); }])
3532 dnl if HAVE_POSIX_OPENPT
3533 if test "x$ac_cv_func_posix_openpt" = xyes; then
3534 AC_DEFINE(PTY_OPEN, [fd = posix_openpt (O_RDWR | O_NOCTTY)])
3535 AC_DEFINE(PTY_NAME_SPRINTF, [])
3537 elif test "x$ac_cv_func_getpt" = xyes; then
3538 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
3539 AC_DEFINE(PTY_NAME_SPRINTF, [])
3541 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
3544 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3549 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3550 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
3551 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
3555 dnl It looks like this cannot be right, because it is not a loop.
3556 dnl However, process.c actually does this:
3562 dnl which presumably makes it OK, since irix == sgi (?).
3563 dnl FIXME it seems like this special treatment is unnecessary?
3564 dnl Why can't irix use a single-trip loop like eg cygwin?
3565 AC_DEFINE(PTY_ITERATION, [])
3566 dnl Not used, because PTY_ITERATION is defined.
3567 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
3568 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); }])
3569 dnl No need to get the pty name at all.
3570 AC_DEFINE(PTY_NAME_SPRINTF, [])
3571 dnl No need to use sprintf to get the tty name--we get that from _getpty.
3572 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3576 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
3577 dnl from intercepting that death. If any child but grantpt's should die
3578 dnl within, it should be caught after sigrelse(2).
3579 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); }])
3583 dnl Comments are as per sol2*.
3584 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); }])
3591 dnl This change means that we don't loop through allocate_pty too
3592 dnl many times in the (rare) event of a failure.
3593 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
3594 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
3595 dnl Push various streams modules onto a PTY channel. Used in process.c.
3596 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.])
3601 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
3602 "typing" a signal character on the pty.])
3605 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
3606 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
3607 aix4-2 | cygwin | gnu | irix6-5 | freebsd | netbsd | openbsd )
3608 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3611 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
3612 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
3613 gnu-linux | gnu-kfreebsd )
3615 AC_MSG_CHECKING([for signals via characters])
3616 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3617 #include <linux/version.h>
3618 #if LINUX_VERSION_CODE < 0x20400
3619 # error "Linux version too old"
3621 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
3623 AC_MSG_RESULT([$emacs_signals_via_chars])
3624 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3629 dnl Used in dispnew.c
3630 AH_TEMPLATE(PENDING_OUTPUT_COUNT, [Number of chars of output in the
3631 buffer of a stdio stream.])
3633 AC_MSG_CHECKING([whether we are using the GNU C library])
3634 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3635 #include <features.h>
3636 #ifndef __GNU_LIBRARY__
3637 # error "this is not the GNU C library"
3639 ]], [[]])], emacs_glibc=yes, emacs_glibc=no)
3640 AC_MSG_RESULT([$emacs_glibc])
3642 if test $emacs_glibc = yes; then
3644 emacs_pending_output=unknown
3647 gnu | gnu-linux | gnu-kfreebsd )
3648 AC_MSG_CHECKING([for style of pending output formalism])
3649 dnl In autoconf 2.67 and later, we could use a single test
3650 dnl since the preprocessed output is accessible in "conftest.i".
3651 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3653 #if !defined (_IO_STDIO_H) && !defined (_STDIO_USES_IOSTREAM)
3654 # error "stdio definitions not found"
3656 ]], [[]])], emacs_pending_output=new, [])
3658 if test $emacs_pending_output = unknown; then
3660 gnu-linux | gnu-kfreebsd)
3661 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3664 # error "not using uclibc"
3666 ]], [[]])], emacs_pending_output=uclibc, emacs_pending_output=old)
3671 AC_MSG_RESULT([$emacs_pending_output])
3673 case $emacs_pending_output in
3675 dnl New C libio names.
3676 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE),
3677 [((FILE)->_IO_write_ptr - (FILE)->_IO_write_base)])
3680 dnl Using the uClibc library.
3681 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE),
3682 [((FILE)->__bufpos - (FILE)->__bufstart)])
3685 dnl Old C++ iostream names.
3686 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE),
3687 [((FILE)->_pptr - (FILE)->_pbase)])
3693 if test $emacs_pending_output = unknown; then
3694 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->__bufp - (FILE)->__buffer)])
3697 else dnl !emacs_glibc
3700 cygwin | darwin | freebsd | netbsd | openbsd )
3701 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->_p - (FILE)->_bf._base)])
3705 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->__ptr - (FILE)->__base)])
3709 dnl HAVE_STDIO_EXT_H && HAVE___FPENDING
3710 if test x$ac_cv_header_stdio_ext_h = xyes && \
3711 test x$ac_cv_func___fpending = xyes; then
3712 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [__fpending (FILE)])
3713 AC_DEFINE(DISPNEW_NEEDS_STDIO_EXT, 1,
3714 [Define if dispnew.c should include stdio_ext.h.])
3716 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->_ptr - (FILE)->_base)])
3723 dnl Used in vm-limit.c
3724 AH_TEMPLATE(DATA_START, [Address of the start of the data segment.])
3725 dnl Used in lisp.h, emacs.c, mem-limits.h
3726 dnl NEWS.18 describes this as "a number which contains
3727 dnl the high bits to be inclusive or'ed with pointers that are unpacked."
3728 AH_TEMPLATE(DATA_SEG_BITS, [Extra bits to be or'd in with any pointers
3729 stored in a Lisp_Object.])
3730 dnl if Emacs uses fewer than 32 bits for the value field of a LISP_OBJECT.
3734 dnl libc defines data_start.
3735 AC_DEFINE(DATA_START, [({ extern int data_start; (char *) &data_start; })])
3739 dnl The data segment on this machine always starts at address 0x40000000.
3740 AC_DEFINE(DATA_START, [0x40000000])
3741 AC_DEFINE(DATA_SEG_BITS, [0x40000000])
3744 AC_DEFINE(DATA_START, [0x10000000])
3745 AC_DEFINE(DATA_SEG_BITS, [0x10000000])
3750 AH_TEMPLATE(ULIMIT_BREAK_VALUE, [Undocumented.])
3751 AH_TEMPLATE(TAB3, [Undocumented.])
3754 darwin) AC_DEFINE(TAB3, OXTABS) ;;
3756 gnu | freebsd | netbsd | openbsd )
3757 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
3758 AC_DEFINE(TAB3, OXTABS)
3761 gnu-linux | gnu-kfreebsd )
3762 dnl libc-linux/sysdeps/linux/i386/ulimit.c says that due to shared
3763 dnl library, we cannot get the maximum address for brk.
3764 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3768 ]], [[]])], AC_DEFINE(ULIMIT_BREAK_VALUE, [(32*1024*1024)]), [])
3770 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3774 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
3775 [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)],
3776 [Mark a secondary stack, like the register stack on the ia64.]), [])
3780 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
3781 run_time_remap; for HPUX.])
3785 dnl Ulimit(UL_GMEMLIM) is busted...
3786 AC_DEFINE(ULIMIT_BREAK_VALUE, [0x14000000])
3791 dnl These won't be used automatically yet. We also need to know, at least,
3792 dnl that the stack is continuous.
3793 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
3794 registers relevant for conservative garbage collection in the jmp_buf.])
3796 AH_TEMPLATE(GC_MARK_STACK, [Define to GC_USE_GCPROS_AS_BEFORE if
3797 conservative garbage collection is not known to work.])
3801 aix4-2 | hpux* | unixware)
3802 dnl Conservative garbage collection has not been tested, so for now
3803 dnl play it safe and stick with the old-fashioned way of marking.
3804 AC_DEFINE(GC_MARK_STACK, [GC_USE_GCPROS_AS_BEFORE])
3807 dnl Not all the architectures are tested, but there are Debian packages
3808 dnl for SCM and/or Guile on them, so the technique must work. See also
3809 dnl comments in alloc.c concerning setjmp and gcc.
3810 dnl Fixme: it's probably safe to just use the GCC conditional below.
3811 gnu-linux | gnu-kfreebsd )
3812 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3813 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
3814 || defined __alpha__ || defined __mips__ || defined __s390__ \
3815 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
3816 || defined __ia64__ || defined __sh__
3819 # error "setjmp not known to work on this arch"
3821 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1),
3822 AC_DEFINE(GC_MARK_STACK, [GC_USE_GCPROS_AS_BEFORE]) )
3827 if test x$GCC = xyes; then
3828 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
3829 AC_DEFINE(GC_SETJMP_WORKS, 1)
3832 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
3833 freebsd | netbsd | openbsd | irix6-5 | sol2* )
3834 AC_DEFINE(GC_SETJMP_WORKS, 1)
3839 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
3842 [[#include <setjmp.h>
3846 _longjmp (j, 1);]])],
3847 [emacs_cv_func__setjmp=yes],
3848 [emacs_cv_func__setjmp=no])])
3849 if test $emacs_cv_func__setjmp = yes; then
3850 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
3852 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
3855 [[#include <setjmp.h>
3858 if (! sigsetjmp (j, 1))
3859 siglongjmp (j, 1);]])],
3860 [emacs_cv_func_sigsetjmp=yes],
3861 [emacs_cv_func_sigsetjmp=no])])
3862 if test $emacs_cv_func_sigsetjmp = yes; then
3863 AC_DEFINE([HAVE_SIGSETJMP], 1,
3864 [Define to 1 if sigsetjmp and siglongjmp work.
3865 The value of this symbol is irrelevant if HAVE__SETJMP is defined.])
3871 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
3872 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
3873 dnl and this is all we need.
3874 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
3881 dnl Used in xfaces.c.
3882 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
3883 some systems, where it requires time.h.])
3888 dnl Define symbols to identify the version of Unix this is.
3889 dnl Define all the symbols that apply correctly.
3890 AH_TEMPLATE(BSD4_2, [Define if the system is compatible with BSD 4.2.])
3891 AH_TEMPLATE(BSD_SYSTEM, [Define if the system is compatible with BSD 4.2.])
3892 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
3893 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
3894 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
3895 AH_TEMPLATE(USG5, [Define if the system is compatible with System V.])
3896 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
3902 dnl This symbol should be defined on AIX Version 3 ???????
3903 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3905 # error "_AIX not defined"
3907 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
3911 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
3915 dnl BSD4_3 and BSD4_4 are already defined in sys/param.h.
3916 AC_DEFINE(BSD4_2, [])
3917 AC_DEFINE(BSD_SYSTEM, [])
3918 dnl More specific than the above two. We cannot use __APPLE__ as this
3919 dnl may not be defined on non-OSX Darwin, and we cannot define DARWIN
3920 dnl here because Panther and lower CoreFoundation.h uses DARWIN to
3921 dnl distinguish OS X from pure Darwin.
3922 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
3926 AC_DEFINE(BSD4_2, [])
3927 dnl Hack to avoid calling AC_PREPROC_IFELSE multiple times.
3928 dnl Would not be needed with autoconf >= 2.67, where the
3929 dnl preprocessed output is accessible in "conftest.i".
3930 AC_DEFINE(BSD_SYSTEM_AHB, 1, [Define if AH_BOTTOM should change BSD_SYSTEM.])
3933 gnu | netbsd | openbsd )
3934 AC_DEFINE(BSD4_2, [])
3935 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3937 # error "BSD_SYSTEM not defined"
3939 ]], [[]])], [], AC_DEFINE(BSD_SYSTEM, 43) )
3942 gnu-linux | gnu-kfreebsd )
3944 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
3950 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
3956 AC_DEFINE(USG5_4, [])
3957 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
3963 AC_DEFINE(USG5_4, [])
3964 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
3970 AC_DEFINE(USG5_4, [])
3974 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
3977 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
3978 emacs_cv_usable_FIONREAD=no
3983 [AC_LANG_PROGRAM([[#include <sys/types.h>
3984 #include <sys/ioctl.h>
3986 # include <sys/filio.h>
3989 [[int foo = ioctl (0, FIONREAD, &foo);]])],
3990 [emacs_cv_usable_FIONREAD=yes],
3991 [emacs_cv_usable_FIONREAD=no])
3994 if test $emacs_cv_usable_FIONREAD = yes; then
3995 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
3997 if test $emacs_broken_SIGIO = no; then
3998 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4000 [AC_LANG_PROGRAM([[#include <fcntl.h>
4003 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4004 [emacs_cv_usable_SIGIO=yes],
4005 [emacs_cv_usable_SIGIO=no])],
4006 [emacs_cv_usable_SIGIO=yes],
4007 [emacs_cv_usable_SIGIO=no])
4008 if test $emacs_cv_usable_SIGIO = yes; then
4009 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4016 dnl Emacs supplies its own malloc, but glib (part of Gtk+) calls
4017 dnl memalign and on Cygwin, that becomes the Cygwin-supplied memalign.
4018 dnl As malloc is not the Cygwin malloc, the Cygwin memalign always
4019 dnl returns ENOSYS. A workaround is to set G_SLICE=always-malloc. */
4021 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
4022 G_SLICE environment variable to "always-malloc" at startup, if
4027 dnl It works to open the pty's tty in the parent (Emacs), then
4028 dnl close and reopen it in the child.
4029 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4030 works to open a pty's tty in the parent process, then close and
4031 reopen it in the child.])
4035 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4036 use VSUSP instead of VSWTCH.])
4037 AC_DEFINE(SETPGRP_RELEASES_CTTY, 1, [Define if process.c:child_setup
4038 should not call setpgrp.])
4042 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4047 # Set up the CFLAGS for real compilation, so we can substitute it.
4048 CFLAGS="$REAL_CFLAGS"
4049 CPPFLAGS="$REAL_CPPFLAGS"
4051 ## Hack to detect a buggy GCC version.
4052 if test "x$GCC" = xyes \
4053 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4054 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4055 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4056 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4059 version=$PACKAGE_VERSION
4061 copyright="Copyright (C) 2012 Free Software Foundation, Inc."
4062 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4063 [Short copyright string for this version of Emacs.])
4066 ### Specify what sort of things we'll be editing into Makefile and config.h.
4067 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4069 AC_SUBST(configuration)
4074 AC_SUBST(exec_prefix)
4077 AC_SUBST(sharedstatedir)
4078 AC_SUBST(libexecdir)
4083 AC_SUBST(standardlisppath)
4084 AC_SUBST(locallisppath)
4086 AC_SUBST(x_default_search_path)
4088 AC_SUBST(archlibdir)
4093 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4094 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4095 ## end of LIBX_BASE, but nothing ever set it.
4096 AC_SUBST(LD_SWITCH_X_SITE)
4097 AC_SUBST(C_SWITCH_X_SITE)
4098 AC_SUBST(GNUSTEP_CFLAGS)
4100 ## Used in lwlib/Makefile.in.
4101 AC_SUBST(X_TOOLKIT_TYPE)
4103 AC_SUBST(ns_appbindir)
4104 AC_SUBST(ns_appresdir)
4106 AC_SUBST(GNU_OBJC_CFLAGS)
4107 AC_SUBST(OTHER_FILES)
4109 if test -n "${term_header}"; then
4110 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4111 [Define to the header for the built-in window system.])
4114 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4115 [Define to the canonical Emacs configuration name.])
4116 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${ac_configure_args}",
4117 [Define to the options passed to configure.])
4118 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4119 define this to include extra configuration information.])
4124 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4125 AC_DEFINE(HAVE_X_WINDOWS, 1,
4126 [Define to 1 if you want to use the X window system.])
4128 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o xgselect.o"
4130 if test "$HAVE_XFT" = "yes"; then
4131 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4132 elif test "$HAVE_FREETYPE" = "yes"; then
4133 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4143 if test "${USE_X_TOOLKIT}" != "none" ; then
4145 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4146 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4147 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4148 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4149 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4153 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4154 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4158 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4159 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4160 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4164 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4165 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4168 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4171 AC_SUBST(WIDGET_OBJ)
4174 case "$USE_X_TOOLKIT" in
4175 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4176 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4177 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4179 AC_SUBST(TOOLKIT_LIBW)
4181 if test "$USE_X_TOOLKIT" = "none"; then
4182 LIBXT_OTHER="\$(LIBXSM)"
4183 OLDXMENU_TARGET="really-oldXMenu"
4185 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4186 OLDXMENU_TARGET="really-lwlib"
4188 AC_SUBST(LIBXT_OTHER)
4190 ## The X Menu stuff is present in the X10 distribution, but missing
4191 ## from X11. If we have X10, just use the installed library;
4192 ## otherwise, use our own copy.
4193 if test "${HAVE_X11}" = "yes" ; then
4194 AC_DEFINE(HAVE_X11, 1,
4195 [Define to 1 if you want to use version 11 of X windows.
4196 Otherwise, Emacs expects to use version 10.])
4198 if test "$USE_X_TOOLKIT" = "none"; then
4199 OLDXMENU="\${oldXMenudir}/libXMenu11.a"
4201 OLDXMENU="\${lwlibdir}/liblw.a"
4203 LIBXMENU="\$(OLDXMENU)"
4204 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4205 OLDXMENU_DEPS="\${OLDXMENU} ../src/\${OLDXMENU}"
4207 ## For a syntactically valid Makefile; not actually used for anything.
4208 ## See comments in src/Makefile.in.
4210 ## FIXME This case (!HAVE_X11 && HAVE_X_WINDOWS) is no longer possible(?).
4211 if test "${HAVE_X_WINDOWS}" = "yes"; then
4220 if test "$HAVE_GTK" = "yes" || test "$HAVE_MENUS" != "yes"; then
4227 AC_SUBST(OLDXMENU_TARGET)
4230 AC_SUBST(LIBX_OTHER)
4231 AC_SUBST(OLDXMENU_DEPS)
4233 if test "${HAVE_MENUS}" = "yes" ; then
4234 AC_DEFINE(HAVE_MENUS, 1,
4235 [Define to 1 if you have mouse menus.
4236 (This is automatic if you use X, but the option to specify it remains.)
4237 It is also defined with other window systems that support xmenu.c.])
4240 if test "${GNU_MALLOC}" = "yes" ; then
4241 AC_DEFINE(GNU_MALLOC, 1,
4242 [Define to 1 if you want to use the GNU memory allocator.])
4246 if test "${REL_ALLOC}" = "yes" ; then
4247 AC_DEFINE(REL_ALLOC, 1,
4248 [Define REL_ALLOC if you want to use the relocating allocator for
4251 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4253 AC_SUBST(RALLOC_OBJ)
4255 if test "$opsys" = "cygwin"; then
4256 CYGWIN_OBJ="sheap.o cygw32.o"
4257 ## Cygwin differs because of its unexec().
4259 POST_ALLOC_OBJ=lastfile.o
4262 PRE_ALLOC_OBJ=lastfile.o
4265 AC_SUBST(CYGWIN_OBJ)
4266 AC_SUBST(PRE_ALLOC_OBJ)
4267 AC_SUBST(POST_ALLOC_OBJ)
4269 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4270 # it temporarily reverts them to their pre-pkg-config values,
4271 # because gnulib needs to work with both src (which uses the
4272 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4273 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4274 # and it therefore needs to run in an environment where LIBS does not
4275 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4276 # for some package unrelated to lib-src.
4279 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4280 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4281 gl_ASSERT_NO_GNULIB_POSIXCHECK
4282 gl_ASSERT_NO_GNULIB_TESTS
4288 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4291 ## The -headerpad option tells ld (see man page) to leave room at the
4292 ## end of the header for adding load commands. Needed for dumping.
4293 ## 0x690 is the total size of 30 segment load commands (at 56
4294 ## each); under Cocoa 31 commands are required.
4295 if test "$HAVE_NS" = "yes"; then
4296 libs_nsgui="-framework AppKit"
4302 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4304 ## This is here because src/Makefile.in did some extra fiddling around
4305 ## with LD_SWITCH_SYSTEM. The cpp logic was:
4306 ## #ifndef LD_SWITCH_SYSTEM
4307 ## #if !defined (__GNUC__) && ((defined (BSD_SYSTEM) && !defined (COFF)))
4308 ## Since all the *bsds define LD_SWITCH_SYSTEM, this simplifies to:
4309 ## not using gcc, darwin.
4310 ## Because this was done in src/Makefile.in, the resulting part of
4311 ## LD_SWITCH_SYSTEM was not used in configure (ie, in ac_link).
4312 ## It therefore seems cleaner to put this in LD_SWITCH_SYSTEM_TEMACS,
4313 ## rather than LD_SWITCH_SYSTEM.
4314 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4315 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4318 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4319 ## find X at run-time.
4320 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4321 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4322 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4323 ## had different values in configure (in ac_link) and src/Makefile.in.
4324 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4325 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4327 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4330 if test "$NS_IMPL_GNUSTEP" = "yes"; then
4331 LD_SWITCH_SYSTEM_TEMACS="${LD_SWITCH_SYSTEM_TEMACS} -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES} -lgnustep-gui -lgnustep-base -lobjc -lpthread"
4334 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4340 ## gnu: GNU needs its own crt0.
4341 aix4-2|cygwin|darwin|gnu|hpux*|irix6-5|sol2*|unixware) ORDINARY_LINK=yes ;;
4343 ## On post 1.3 releases of NetBSD, gcc -nostdlib also clears the
4344 ## library search parth, i.e. it won't search /usr/lib for libc and
4345 ## friends. Using -nostartfiles instead avoids this problem, and
4346 ## will also work on earlier NetBSD releases.
4347 netbsd|openbsd) LD_FIRSTFLAG="-nostartfiles" ;;
4349 ## powerpc*: NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp> says
4350 ## MkLinux/LinuxPPC needs this.
4351 ## s390x-* only supports opsys = gnu-linux so it can be added here.
4353 case "$canonical" in
4354 powerpc*|s390x-*) LD_FIRSTFLAG="-nostdlib" ;;
4360 if test "x$ORDINARY_LINK" = "xyes"; then
4363 AC_DEFINE(ORDINARY_LINK, 1, [Define if the C compiler is the linker.])
4365 ## The system files defining neither ORDINARY_LINK nor LD_FIRSTFLAG are:
4366 ## freebsd, gnu-* not on powerpc*|s390x*.
4367 elif test "x$GCC" = "xyes" && test "x$LD_FIRSTFLAG" = "x"; then
4369 ## Versions of GCC >= 2.0 put their library, libgcc.a, in obscure
4370 ## places that are difficult to figure out at make time. Fortunately,
4371 ## these same versions allow you to pass arbitrary flags on to the
4372 ## linker, so there is no reason not to use it as a linker.
4374 ## Well, it is not quite perfect. The "-nostdlib" keeps GCC from
4375 ## searching for libraries in its internal directories, so we have to
4376 ## ask GCC explicitly where to find libgcc.a (LIB_GCC below).
4377 LD_FIRSTFLAG="-nostdlib"
4380 ## FIXME? What setting of EDIT_LDFLAGS should this have?
4381 test "$NS_IMPL_GNUSTEP" = "yes" && LD_FIRSTFLAG="-rdynamic"
4383 AC_SUBST(LD_FIRSTFLAG)
4386 ## FIXME? The logic here is not precisely the same as that above.
4387 ## There is no check here for a pre-defined LD_FIRSTFLAG.
4388 ## Should we only be setting LIB_GCC if LD ~ -nostdlib?
4390 if test "x$GCC" = "xyes" && test "x$ORDINARY_LINK" != "xyes"; then
4393 freebsd|netbsd|openbsd) LIB_GCC= ;;
4396 ## armin76@gentoo.org reported that the lgcc_s flag is necessary to
4397 ## build on ARM EABI under GNU/Linux. (Bug#5518)
4403 ## FIXME? s/gnu-linux.h used to define LIB_GCC as below, then
4404 ## immediately undefine it again and redefine it to empty.
4405 ## Was the C_SWITCH_X_SITE part really necessary?
4406 ## LIB_GCC=`$CC $C_SWITCH_X_SITE -print-libgcc-file-name`
4412 ## Ask GCC where to find libgcc.a.
4413 *) LIB_GCC=`$CC -print-libgcc-file-name 2> /dev/null` ;;
4418 ## Common for all window systems
4419 if test "$window_system" != "none"; then
4420 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4421 AC_DEFINE(HAVE_MOUSE, 1, [Define if you have mouse support.])
4422 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4425 AC_SUBST(WINDOW_SYSTEM_OBJ)
4427 AH_TOP([/* GNU Emacs site configuration template file.
4429 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2012
4430 Free Software Foundation, Inc.
4432 This file is part of GNU Emacs.
4434 GNU Emacs is free software: you can redistribute it and/or modify
4435 it under the terms of the GNU General Public License as published by
4436 the Free Software Foundation, either version 3 of the License, or
4437 (at your option) any later version.
4439 GNU Emacs is distributed in the hope that it will be useful,
4440 but WITHOUT ANY WARRANTY; without even the implied warranty of
4441 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4442 GNU General Public License for more details.
4444 You should have received a copy of the GNU General Public License
4445 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4448 /* No code in Emacs #includes config.h twice, but some bits of code
4449 intended to work with other packages as well (like gmalloc.c)
4450 think they can include it as many times as they like. */
4451 #ifndef EMACS_CONFIG_H
4452 #define EMACS_CONFIG_H
4455 AH_BOTTOM([#include <conf_post.h>
4457 #endif /* EMACS_CONFIG_H */
4466 #### Report on what we decided to do.
4467 #### Report GTK as a toolkit, even if it doesn't use Xt.
4468 #### It makes printing result more understandable as using GTK sets
4469 #### toolkit_scroll_bars to yes by default.
4470 if test "${HAVE_GTK}" = "yes"; then
4475 Configured for \`${canonical}'.
4477 Where should the build process find the source code? ${srcdir}
4478 What compiler should emacs be built with? ${CC} ${CFLAGS}
4479 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4480 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4481 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4482 What window system should Emacs use? ${window_system}
4483 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4485 if test -n "${x_includes}"; then
4486 echo " Where do we find X Windows header files? ${x_includes}"
4488 echo " Where do we find X Windows header files? Standard dirs"
4490 if test -n "${x_libraries}"; then
4491 echo " Where do we find X Windows libraries? ${x_libraries}"
4493 echo " Where do we find X Windows libraries? Standard dirs"
4496 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4497 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4498 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4499 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4500 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4501 echo " Does Emacs use -lpng? ${HAVE_PNG}"
4502 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4503 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4505 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4506 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4507 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4508 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4509 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4510 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4511 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4513 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4514 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4515 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
4516 echo " Does Emacs use -lxft? ${HAVE_XFT}"
4518 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
4521 if test -n "${EMACSDATA}"; then
4522 echo " Environment variable EMACSDATA set to: $EMACSDATA"
4524 if test -n "${EMACSDOC}"; then
4525 echo " Environment variable EMACSDOC set to: $EMACSDOC"
4530 if test "$HAVE_NS" = "yes"; then
4532 echo "You must run \"${MAKE-make} install\" in order to test the built application.
4533 The installed application will go to nextstep/Emacs.app and can be
4534 run or moved from there."
4535 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
4536 echo "The application will be fully self-contained."
4538 echo "The lisp resources for the application will be installed under ${prefix}.
4539 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
4540 to run if these resources are not installed."
4545 if test "${opsys}" = "cygwin"; then
4547 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
4553 # Remove any trailing slashes in these variables.
4554 [test "${prefix}" != NONE &&
4555 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
4556 test "${exec_prefix}" != NONE &&
4557 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
4559 if test "$HAVE_NS" = "yes"; then
4560 if test "$NS_IMPL_GNUSTEP" = yes; then
4561 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
4562 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
4564 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
4565 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
4569 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
4570 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
4571 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
4572 dnl (else you get "no `Makefile.am' found for any configure output").
4573 dnl This will work, but you get a config.status that is not quite right
4574 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
4575 dnl That doesn't have any obvious consequences for Emacs, but on the whole
4576 dnl it seems better to just live with the duplication.
4577 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"
4579 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
4580 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
4581 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
4582 leim/Makefile nextstep/Makefile])
4584 dnl test/ is not present in release tarfiles.
4585 opt_makefile=test/automated/Makefile
4587 if test -f $srcdir/${opt_makefile}.in; then
4588 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4589 dnl Again, it's best not to use a variable. Though you can add
4590 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
4591 AC_CONFIG_FILES([test/automated/Makefile])
4595 dnl admin/ may or may not be present.
4596 opt_makefile=admin/unidata/Makefile
4598 if test -f $srcdir/${opt_makefile}.in; then
4599 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4600 AC_CONFIG_FILES([admin/unidata/Makefile])
4604 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
4606 AC_SUBST(SUBDIR_MAKEFILES_IN)
4608 dnl Make the necessary directories, if they don't exist.
4609 AC_CONFIG_COMMANDS([mkdirs], [
4610 for dir in etc lisp ; do
4611 test -d ${dir} || mkdir ${dir}
4615 dnl You might wonder (I did) why epaths.h is generated by running make,
4616 dnl rather than just letting configure generate it from epaths.in.
4617 dnl One reason is that the various paths are not fully expanded (see above);
4618 dnl eg gamedir=${prefix}/var/games/emacs.
4619 dnl Secondly, the GNU Coding standards require that one should be able
4620 dnl to run `make prefix=/some/where/else' and override the values set
4621 dnl by configure. This also explains the `move-if-change' test and
4622 dnl the use of force in the `epaths-force' rule in Makefile.in.
4623 AC_CONFIG_COMMANDS([epaths], [
4624 echo creating src/epaths.h
4625 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
4626 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS"])
4628 AC_CONFIG_COMMANDS([gdbinit], [
4629 if test ! -f src/.gdbinit && test -f $srcdir/src/.gdbinit; then
4630 echo creating src/.gdbinit
4631 echo source $srcdir/src/.gdbinit > src/.gdbinit