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 OPTION_DEFAULT_ON([sync-input],[process async input synchronously])
132 if test "$with_sync_input" = yes; then
133 AC_DEFINE(SYNC_INPUT, 1, [Process async input synchronously.])
136 dnl FIXME currently it is not the last.
137 dnl This should be the last --with option, because --with-x is
138 dnl added later on when we find the path of X, and it's best to
139 dnl keep them together visually.
140 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
141 [use an X toolkit (KIT one of: yes or gtk, gtk3, lucid or athena, motif, no)])],
142 [ case "${withval}" in
143 y | ye | yes ) val=gtk ;;
145 l | lu | luc | luci | lucid ) val=lucid ;;
146 a | at | ath | athe | athen | athena ) val=athena ;;
147 m | mo | mot | moti | motif ) val=motif ;;
148 g | gt | gtk ) val=gtk ;;
151 AC_MSG_ERROR([`--with-x-toolkit=$withval' is invalid;
152 this option's value should be `yes', `no', `lucid', `athena', `motif', `gtk' or
153 `gtk3'. `yes' and `gtk' are synonyms. `athena' and `lucid' are synonyms.])
159 OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit)])
160 if test "$with_wide_int" = yes; then
161 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
164 dnl _ON results in a '--without' option in the --help output, so
165 dnl the help text should refer to "don't compile", etc.
166 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
167 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
168 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
169 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
170 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
171 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
172 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
173 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
175 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
176 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
177 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
179 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
180 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
181 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
182 OPTION_DEFAULT_OFF([ns],[use NeXTstep (Cocoa or GNUstep) windowing system])
184 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
185 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
186 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
187 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
188 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
189 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
191 ## For the times when you want to build Emacs but don't have
192 ## a suitable makeinfo, and can live without the manuals.
193 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
194 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
196 ## Makefile.in needs the cache file name.
199 ## This is an option because I do not know if all info/man support
200 ## compressed files, nor how to test if they do so.
201 OPTION_DEFAULT_ON([compress-info],[don't compress the installed Info pages])
202 if test $with_compress_info = yes; then
209 AC_ARG_WITH([pkg-config-prog],dnl
210 [AS_HELP_STRING([--with-pkg-config-prog=PATH],
211 [path to pkg-config for finding GTK and librsvg])])
212 if test "X${with_pkg_config_prog}" != X; then
213 if test "${with_pkg_config_prog}" != yes; then
214 PKG_CONFIG="${with_pkg_config_prog}"
219 AC_ARG_WITH([crt-dir],dnl
220 [AS_HELP_STRING([--with-crt-dir=DIR],[directory containing crtn.o etc.
221 The default is /usr/lib, or /usr/lib64 on some platforms.])])
222 CRT_DIR="${with_crt_dir}"
224 AC_ARG_WITH(gameuser,dnl
225 [AS_HELP_STRING([--with-gameuser=USER],[user for shared game score files])])
226 test "X${with_gameuser}" != X && test "${with_gameuser}" != yes \
227 && gameuser="${with_gameuser}"
228 test "X$gameuser" = X && gameuser=games
230 AC_ARG_WITH([gnustep-conf],dnl
231 [AS_HELP_STRING([--with-gnustep-conf=PATH],[path to GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
232 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
233 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
234 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
235 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
237 AC_ARG_ENABLE(ns-self-contained,
238 [AS_HELP_STRING([--disable-ns-self-contained],
239 [disable self contained build under NeXTstep])],
240 EN_NS_SELF_CONTAINED=$enableval,
241 EN_NS_SELF_CONTAINED=yes)
243 AC_ARG_ENABLE(locallisppath,
244 [AS_HELP_STRING([--enable-locallisppath=PATH],
245 [directories Emacs should search for lisp files specific
247 if test "${enableval}" = "no"; then
249 elif test "${enableval}" != "yes"; then
250 locallisppath=${enableval}
253 AC_ARG_ENABLE(checking,
254 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
255 [enable expensive run-time checks. With LIST,
256 enable only specific categories of checks.
257 Categories are: all,yes,no.
258 Flags are: stringbytes, stringoverrun, stringfreelist,
259 xmallocoverrun, conslist, glyphs])],
260 [ac_checking_flags="${enableval}"],[])
261 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
262 for check in $ac_checking_flags
265 # these set all the flags to specific states
266 yes) ac_enable_checking=1 ;;
267 no) ac_enable_checking= ;
268 ac_gc_check_stringbytes= ;
269 ac_gc_check_string_overrun= ;
270 ac_gc_check_string_free_list= ;
271 ac_xmalloc_overrun= ;
272 ac_gc_check_cons_list= ;
274 all) ac_enable_checking=1 ;
275 ac_gc_check_stringbytes=1 ;
276 ac_gc_check_string_overrun=1 ;
277 ac_gc_check_string_free_list=1 ;
278 ac_xmalloc_overrun=1 ;
279 ac_gc_check_cons_list=1 ;
281 # these enable particular checks
282 stringbytes) ac_gc_check_stringbytes=1 ;;
283 stringoverrun) ac_gc_check_string_overrun=1 ;;
284 stringfreelist) ac_gc_check_string_free_list=1 ;;
285 xmallocoverrun) ac_xmalloc_overrun=1 ;;
286 conslist) ac_gc_check_cons_list=1 ;;
287 glyphs) ac_glyphs_debug=1 ;;
288 *) AC_MSG_ERROR(unknown check category $check) ;;
293 if test x$ac_enable_checking != x ; then
294 AC_DEFINE(ENABLE_CHECKING, 1,
295 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
297 if test x$ac_gc_check_stringbytes != x ; then
298 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
299 [Define this temporarily to hunt a bug. If defined, the size of
300 strings is redundantly recorded in sdata structures so that it can
301 be compared to the sizes recorded in Lisp strings.])
303 if test x$ac_gc_check_string_overrun != x ; then
304 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
305 [Define this to check for short string overrun.])
307 if test x$ac_gc_check_string_free_list != x ; then
308 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
309 [Define this to check the string free list.])
311 if test x$ac_xmalloc_overrun != x ; then
312 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
313 [Define this to check for malloc buffer overrun.])
315 if test x$ac_gc_check_cons_list != x ; then
316 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
317 [Define this to check for errors in cons list.])
319 if test x$ac_glyphs_debug != x ; then
320 AC_DEFINE(GLYPH_DEBUG, 1,
321 [Define this to enable glyphs debugging code.])
324 AC_ARG_ENABLE(check-lisp-object-type,
325 [AS_HELP_STRING([--enable-check-lisp-object-type],
326 [enable compile time checks for the Lisp_Object data type.
327 This is useful for development for catching certain types of bugs.])],
328 if test "${enableval}" != "no"; then
329 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
330 [Define this to enable compile time checks for the Lisp_Object data type.])
334 AC_ARG_ENABLE(profiling,
335 [AS_HELP_STRING([--enable-profiling],
336 [build emacs with profiling support.
337 This might not work on all platforms])],
338 [ac_enable_profiling="${enableval}"],[])
339 if test x$ac_enable_profiling != x ; then
340 PROFILING_CFLAGS="-DPROFILING=1 -pg"
344 AC_SUBST(PROFILING_CFLAGS)
346 AC_ARG_ENABLE(autodepend,
347 [AS_HELP_STRING([--enable-autodepend],
348 [automatically generate dependencies to .h-files.
349 Requires GNU Make and Gcc. Enabled if GNU Make and Gcc is
351 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
353 #### Make srcdir absolute, if it isn't already. It's important to
354 #### avoid running the path through pwd unnecessarily, since pwd can
355 #### give you automounter prefixes, which can go away. We do all this
356 #### so Emacs can find its files when run uninstalled.
357 ## Make sure CDPATH doesn't affect cd (in case PWD is relative).
362 ## We may be able to use the $PWD environment variable to make this
363 ## absolute. But sometimes PWD is inaccurate.
364 ## Note: we used to use ${PWD} at the end instead of `pwd`,
365 ## but that tested only for a well-formed and valid PWD,
366 ## it did not object when PWD was well-formed and valid but just wrong.
367 if test ".${PWD}" != "." && test ".`(cd ${PWD} ; sh -c pwd)`" = ".`pwd`" ;
371 srcdir="`(cd ${srcdir}; pwd)`"
374 * ) srcdir="`(cd ${srcdir}; pwd)`" ;;
377 ### Canonicalize the configuration name.
381 configuration=${host_alias-${build_alias-$host}}
383 dnl This used to use changequote, but, apart from `changequote is evil'
384 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
385 dnl the great gob of text. Thus it's not processed for possible expansion.
386 dnl Just make sure the brackets remain balanced.
388 dnl Since Emacs can't find matching pairs of quotes, boundaries are
389 dnl indicated by comments.
393 ### If you add support for a new configuration, add code to this
394 ### switch statement to recognize your configuration name and select
395 ### the appropriate operating system file.
397 ### You would hope that you could choose an s/*.h
398 ### file based on the operating system portion. However, it turns out
399 ### that each s/*.h file is pretty manufacturer-specific.
400 ### So we basically have to have a special case for each
401 ### configuration name.
403 ### As far as handling version numbers on operating systems is
404 ### concerned, make sure things will fail in a fixable way. If
405 ### /etc/MACHINES doesn't say anything about version numbers, be
406 ### prepared to handle anything reasonably. If version numbers
407 ### matter, be sure /etc/MACHINES says something about it.
410 case "${canonical}" in
412 ## GNU/Linux and similar ports
422 ## FreeBSD kernel + glibc based userland
437 ## Apple Darwin / Mac OS X
439 case "${canonical}" in
446 ## Use fink packages if available.
447 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
448 ## if test -d /sw/include && test -d /sw/lib; then
449 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
450 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
454 ## HP 9000 series 700 and 800, running HP/UX
458 hppa*-hp-hpux1[1-9]* )
460 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
464 rs6000-ibm-aix4.[23]* )
467 powerpc-ibm-aix4.[23]* )
470 rs6000-ibm-aix[56]* )
473 powerpc-ibm-aix[56]* )
477 ## Silicon Graphics machines
481 # Without defining _LANGUAGE_C, things get masked out in the headers
482 # so that, for instance, grepping for `free' in stdlib.h fails and
483 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
484 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
489 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
490 | x86_64-*-solaris2* | x86_64-*-sunos5*)
491 case "${canonical}" in
493 amd64-*-*|x86_64-*-*) ;;
497 case "${canonical}" in
498 *-sunos5.6* | *-solaris2.6* )
502 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
504 emacs_check_sunpro_c=yes
506 *-sunos5* | *-solaris* )
508 emacs_check_sunpro_c=yes
511 ## Watch out for a compiler that we know will not work.
512 case "${canonical}" in
513 *-solaris* | *-sunos5* )
514 if [ "x$CC" = x/usr/ucb/cc ]; then
515 ## /usr/ucb/cc doesn't work;
516 ## we should find some other compiler that does work.
524 ## Intel 386 machines where we don't care about the manufacturer.
526 case "${canonical}" in
527 *-cygwin ) opsys=cygwin ;;
528 *-darwin* ) opsys=darwin ;;
529 *-sysv4.2uw* ) opsys=unixware ;;
530 *-sysv5uw* ) opsys=unixware ;;
531 *-sysv5OpenUNIX* ) opsys=unixware ;;
532 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
541 ### If the code above didn't choose an operating system, just choose
542 ### an operating system based on the configuration name. You really
543 ### only want to use this when you have no idea what the right
544 ### operating system is; if you know what operating systems a machine
545 ### runs, it's cleaner to make it explicit in the case statement
547 if test x"${opsys}" = x; then
548 case "${canonical}" in
549 *-gnu* ) opsys=gnu ;;
559 if test $unported = yes; then
560 AC_MSG_ERROR([Emacs hasn't been ported to `${canonical}' systems.
561 Check `etc/MACHINES' for recognized configuration names.])
565 #### Choose a compiler.
567 dnl Sets GCC=yes if using gcc.
571 if test x$GCC = xyes; then
572 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
574 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
577 # Initialize gnulib right after choosing the compiler.
580 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
581 # if -g3 works and the user does not specify CFLAGS.
582 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
583 if test "$ac_test_CFLAGS" != set; then
586 emacs_g3_CFLAGS='-g3';;
588 emacs_g3_CFLAGS='-g3 -O2';;
592 if test -n "$emacs_g3_CFLAGS"; then
593 emacs_save_CFLAGS=$CFLAGS
594 CFLAGS=$emacs_g3_CFLAGS
595 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
596 [emacs_cv_prog_cc_g3],
597 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
598 [emacs_cv_prog_cc_g3=yes],
599 [emacs_cv_prog_cc_g3=no])])
600 if test $emacs_cv_prog_cc_g3 = yes; then
601 CFLAGS=$emacs_g3_CFLAGS
603 CFLAGS=$emacs_save_CFLAGS
608 AC_ARG_ENABLE([gcc-warnings],
609 [AS_HELP_STRING([--enable-gcc-warnings],
610 [turn on lots of GCC warnings. This is intended for
611 developers, and may generate false alarms when used
612 with older or non-GNU development tools.])],
615 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
617 gl_gcc_warnings=$enableval],
621 AC_ARG_ENABLE(link-time-optimization,
622 [AS_HELP_STRING([--enable-link-time-optimization],
623 [build emacs with link-time optimization.
624 This is supported only for GCC since 4.5.0.])],
625 if test "${enableval}" != "no"; then
626 AC_MSG_CHECKING([whether link-time optimization is supported])
628 if test x$GCC = xyes; then
629 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
630 if test x$CPUS != x; then
636 CFLAGS="$CFLAGS $LTO"
637 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
638 [ac_lto_supported=yes], [ac_lto_supported=no])
641 AC_MSG_RESULT([$ac_lto_supported])
642 if test "$ac_lto_supported" = "yes"; then
643 CFLAGS="$CFLAGS $LTO"
647 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
648 # ------------------------------------------------
649 # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
650 # Otherwise, run RUN-IF-NOT-FOUND.
651 AC_DEFUN([gl_GCC_VERSION_IFELSE],
655 #if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
658 # error "your version of gcc is older than $1.$2"
665 # When compiling with GCC, prefer -isystem to -I when including system
666 # include files, to avoid generating useless diagnostics for the files.
667 if test "$gl_gcc_warnings" != yes; then
672 # This, $nw, is the list of warnings we disable.
675 case $with_x_toolkit in
676 lucid | athena | motif)
677 # Old toolkits mishandle 'const'.
678 nw="$nw -Wwrite-strings"
681 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
684 AC_SUBST([WERROR_CFLAGS])
686 nw="$nw -Waggregate-return" # anachronistic
687 nw="$nw -Wlong-long" # C90 is anachronistic
688 nw="$nw -Wc++-compat" # We don't care about C++ compilers
689 nw="$nw -Wundef" # Warns on '#if GNULIB_FOO' etc in gnulib
690 nw="$nw -Wtraditional" # Warns on #elif which we use often
691 nw="$nw -Wcast-qual" # Too many warnings for now
692 nw="$nw -Wconversion" # Too many warnings for now
693 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
694 nw="$nw -Wsign-conversion" # Too many warnings for now
695 nw="$nw -Woverlength-strings" # Not a problem these days
696 nw="$nw -Wtraditional-conversion" # Too many warnings for now
697 nw="$nw -Wunreachable-code" # so buggy that it's now silently ignored
698 nw="$nw -Wpadded" # Our structs are not padded
699 nw="$nw -Wredundant-decls" # we regularly (re)declare functions
700 nw="$nw -Wlogical-op" # any use of fwrite provokes this
701 nw="$nw -Wformat-nonliteral" # we do this a lot
702 nw="$nw -Wvla" # warnings in gettext.h
703 nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
704 nw="$nw -Wswitch-enum" # Too many warnings for now
705 nw="$nw -Wswitch-default" # Too many warnings for now
706 nw="$nw -Wfloat-equal" # warns about high-quality code
707 nw="$nw -Winline" # OK to ignore 'inline'
708 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
709 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
711 # Emacs doesn't care about shadowing; see
712 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
715 # The following lines should be removable at some point.
716 nw="$nw -Wstack-protector"
717 nw="$nw -Wstrict-overflow"
718 nw="$nw -Wsuggest-attribute=pure"
720 gl_MANYWARN_ALL_GCC([ws])
721 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
725 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
726 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
727 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
728 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
729 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
730 gl_WARN_ADD([-Wno-format-nonliteral])
732 # In spite of excluding -Wlogical-op above, it is enabled, as of
733 # gcc 4.5.0 20090517.
734 gl_WARN_ADD([-Wno-logical-op])
736 gl_WARN_ADD([-fdiagnostics-show-option])
737 gl_WARN_ADD([-funit-at-a-time])
739 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
740 AH_VERBATIM([FORTIFY_SOURCE],
741 [/* Enable compile-time and run-time bounds-checking, and some warnings,
742 without upsetting glibc 2.15+. */
743 #if defined __OPTIMIZE__ && __OPTIMIZE__
744 # define _FORTIFY_SOURCE 2
747 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
749 # We use a slightly smaller set of warning options for lib/.
750 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
752 nw="$nw -Wunused-macros"
754 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
755 AC_SUBST([GNULIB_WARN_CFLAGS])
760 dnl Some other nice autoconf tests.
761 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
764 dnl if test "x$RANLIB" = x; then
769 AC_PATH_PROG(INSTALL_INFO, install-info, :,
770 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
771 dnl Don't use GZIP, which is used by gzip for additional parameters.
772 AC_PATH_PROG(GZIP_PROG, gzip)
774 if test $opsys = gnu-linux; then
775 AC_PATH_PROG(PAXCTL, paxctl,,
776 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
777 if test "X$PAXCTL" != X; then
778 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
779 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
780 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
781 else AC_MSG_RESULT(no); PAXCTL=""; fi])
785 ## Need makeinfo >= 4.7 (?) to build the manuals.
786 AC_PATH_PROG(MAKEINFO, makeinfo, no)
787 dnl By this stage, configure has already checked for egrep and set EGREP,
788 dnl or exited with an error if no egrep was found.
789 if test "$MAKEINFO" != "no" && \
790 test x"`$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
794 ## Makeinfo is unusual. For a released Emacs, the manuals are
795 ## pre-built, and not deleted by the normal clean rules. makeinfo is
796 ## therefore in the category of "special tools" not normally required, which
797 ## configure does not have to check for (eg autoconf itself).
798 ## In a Bazaar checkout on the other hand, the manuals are not included.
799 ## So makeinfo is a requirement to build from Bazaar, and configure
800 ## should test for it as it does for any other build requirement.
801 ## We use the presence of $srcdir/info/emacs to distinguish a release,
802 ## with pre-built manuals, from a Bazaar checkout.
805 if test "$MAKEINFO" = "no"; then
807 if test "x${with_makeinfo}" = "xno"; then
809 elif test ! -e $srcdir/info/emacs; then
810 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
811 source tree does not seem to have pre-built manuals in the `info' directory.
812 Either install a suitable version of makeinfo, or re-run configure
813 with the `--without-makeinfo' option to build without the manuals.] )
816 AC_SUBST(HAVE_MAKEINFO)
818 dnl Just so that there is only a single place we need to edit.
824 dnl Add our options to ac_link now, after it is set up.
826 if test x$GCC = xyes; then
827 test "x$GCC_LINK_TEST_OPTIONS" != x && \
828 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
830 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
831 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
834 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
835 dnl If we can link with the flag, it shouldn't do any harm anyhow.
836 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
837 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
838 dnl if not built to support GNU ld.
840 late_LDFLAGS=$LDFLAGS
841 if test x$GCC = xyes; then
842 LDFLAGS="$LDFLAGS -Wl,-znocombreloc"
844 LDFLAGS="$LDFLAGS -znocombreloc"
847 AC_MSG_CHECKING([for -znocombreloc])
848 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
849 [AC_MSG_RESULT(yes)],
850 LDFLAGS=$late_LDFLAGS
854 dnl The function dump-emacs will not be defined and temacs will do
855 dnl (load "loadup") automatically unless told otherwise.
856 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
858 your-opsys-here) CANNOT_DUMP=yes ;;
861 test "$CANNOT_DUMP" = "yes" && \
862 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
864 AC_SUBST(CANNOT_DUMP)
869 # MSDOS uses unexcoff.o
870 # MSWindows uses unexw32.o
878 UNEXEC_OBJ=unexmacosx.o
881 UNEXEC_OBJ=unexhp9k800.o
884 # Use the Solaris dldump() function, called from unexsol.c, to dump
885 # emacs, instead of the generic ELF dump code found in unexelf.c.
886 # The resulting binary has a complete symbol table, and is better
887 # for debugging and other observability tools (debuggers, pstack, etc).
889 # If you encounter a problem using dldump(), please consider sending
890 # a message to the OpenSolaris tools-linking mailing list:
891 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
893 # It is likely that dldump() works with older Solaris too, but this has
894 # not been tested, so for now this change is for Solaris 10 or newer.
902 ## Let `ld' find image libs and similar things in /usr/local/lib.
903 ## The system compiler, GCC, has apparently been modified to not
904 ## look there, contrary to what a stock GCC would do.
905 ### It's not our place to do this. See bug#10313#17.
906 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
911 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
912 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
916 ### It's not our place to do this. See bug#10313#17.
917 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
922 ## Han Boetes <han@mijncomputer.nl> says this is necessary,
923 ## otherwise Emacs dumps core on elf systems.
924 LD_SWITCH_SYSTEM="-Z"
927 AC_SUBST(LD_SWITCH_SYSTEM)
929 ac_link="$ac_link $LD_SWITCH_SYSTEM"
931 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
932 ## which has not been defined yet. When this was handled with cpp,
933 ## it was expanded to null when configure sourced the s/*.h file.
934 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
935 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
936 ## (or somesuch), but because it is supposed to go at the _front_
937 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
938 ## Compare with the gnu-linux case below, which added to the end
939 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
940 ## LD_SWITCH_SYSTEM_TEMACS.
943 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
950 AC_CHECK_DECL([__ELF__])
951 if test "$ac_cv_have_decl___ELF__" = "yes"; then
952 ## With ELF, make sure that all common symbols get allocated to in the
953 ## data section. Otherwise, the dump of temacs may miss variables in
954 ## the shared library that have been initialized. For example, with
955 ## GNU libc, __malloc_initialized would normally be resolved to the
956 ## shared library's .bss section, which is fatal.
957 if test "x$GCC" = "xyes"; then
958 C_SWITCH_MACHINE="-fno-common"
960 AC_MSG_ERROR([What gives? Fix me if DEC Unix supports ELF now.])
963 UNEXEC_OBJ=unexalpha.o
967 AC_SUBST(C_SWITCH_MACHINE)
972 ## Some programs in src produce warnings saying certain subprograms
973 ## are too complex and need a MAXMEM value greater than 2000 for
974 ## additional optimization. --nils@exp-math.uni-essen.de
975 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
976 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
977 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
978 ## It is redundant in glibc2, since we define _GNU_SOURCE.
979 AC_SUBST(C_SWITCH_SYSTEM)
984 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
985 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
987 freebsd) LIBS_SYSTEM="-lutil" ;;
989 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
991 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
993 ## Motif needs -lgen.
994 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
996 AC_SUBST(LIBS_SYSTEM)
999 ### Make sure subsequent tests use flags consistent with the build flags.
1001 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1002 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1004 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1007 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C89 or better.
1008 AC_DEFUN([AC_TYPE_SIZE_T])
1009 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1010 AC_DEFUN([AC_TYPE_UID_T])
1016 dnl Current possibilities handled by sed (aix4-2 -> aix,
1017 dnl gnu-linux -> gnu/linux, etc.):
1018 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1019 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1020 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1022 dnl NB do not use CRT_DIR unquoted here, since it might not be set yet.
1026 START_FILES='pre-crt0.o'
1029 ## Adding -lm confuses the dynamic linker, so omit it.
1031 START_FILES='pre-crt0.o'
1034 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtn.o'
1035 START_FILES='pre-crt0.o $(CRT_DIR)/crt1.o $(CRT_DIR)/crti.o'
1036 SYSTEM_TYPE=berkeley-unix
1038 gnu-linux | gnu-kfreebsd )
1039 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtn.o'
1040 START_FILES='pre-crt0.o $(CRT_DIR)/crt1.o $(CRT_DIR)/crti.o'
1042 hpux10-20 | hpux11 )
1044 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o'
1046 dnl NB this may be adjusted below.
1048 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o'
1049 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o $(CRT_DIR)/crtbegin.o'
1050 SYSTEM_TYPE=berkeley-unix
1054 SYSTEM_TYPE=usg-unix-v
1060 AC_SUBST(START_FILES)
1061 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1062 [The type of system you are compiling for; sets `system-type'.])
1064 dnl Not all platforms use crtn.o files. Check if the current one does.
1067 for file in x $LIB_STANDARD $START_FILES; do
1069 *CRT_DIR*) crt_files="$crt_files `echo $file | sed -e 's|.*/||'`" ;;
1073 if test "x$crt_files" != x; then
1075 ## If user specified a crt-dir, use that unconditionally.
1078 if test "X$CRT_DIR" = "X"; then
1080 CRT_DIR=/usr/lib # default
1082 case "$canonical" in
1083 x86_64-*-linux-gnu* | s390x-*-linux-gnu*)
1084 ## On x86-64 and s390x GNU/Linux distributions, the standard library
1085 ## can be in a variety of places. We only try /usr/lib64 and /usr/lib.
1086 ## For anything else (eg /usr/lib32), it is up the user to specify
1087 ## the location (bug#5655).
1088 ## Test for crtn.o, not just the directory, because sometimes the
1089 ## directory exists but does not have the relevant files (bug#1287).
1090 ## FIXME better to test for binary compatibility somehow.
1091 test -e /usr/lib64/crtn.o && CRT_DIR=/usr/lib64
1094 powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*) CRT_DIR=/usr/lib64 ;;
1098 hpux10-20) CRT_DIR=/lib ;;
1101 test "x${GCC}" = xyes && crt_gcc=yes
1107 for file in $crt_files; do
1109 ## If we're using gcc, try to determine it automatically by asking
1110 ## gcc. [If this doesn't work, CRT_DIR will remain at the
1111 ## system-dependent default from above.]
1112 if test $crt_gcc = yes && test ! -e $CRT_DIR/$file; then
1114 crt_file=`$CC --print-file-name=$file 2>/dev/null`
1117 CRT_DIR=`AS_DIRNAME(["$crt_file"])`
1122 dnl We expect all the files to be in a single directory, so after the
1123 dnl first there is no point asking gcc.
1126 test -e $CRT_DIR/$file || crt_missing="$crt_missing $file"
1129 test "x$crt_missing" = x || \
1130 AC_MSG_ERROR([Required file(s) not found:$crt_missing
1131 Try using the --with-crt-dir option.])
1133 fi # crt_files != ""
1139 if test -f $CRT_DIR/crti.o; then
1141 test -f $CRT_DIR/crtn.o || \
1142 AC_MSG_ERROR([Required file not found: crtn.o])
1144 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o $(CRT_DIR)/crtn.o'
1145 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o $(CRT_DIR)/crti.o $(CRT_DIR)/crtbegin.o'
1151 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1152 pre_PKG_CONFIG_LIBS=$LIBS
1154 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
1156 dnl This function definition taken from Gnome 2.0
1157 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
1158 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
1159 dnl also defines GSTUFF_PKG_ERRORS on error
1160 AC_DEFUN([PKG_CHECK_MODULES], [
1163 if test "$PKG_CONFIG" = "no" ; then
1164 ifelse([$4], , [AC_MSG_ERROR([
1165 *** 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])
1167 PKG_CONFIG_MIN_VERSION=0.9.0
1168 if $PKG_CONFIG --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
1169 AC_MSG_CHECKING(for $2)
1171 if $PKG_CONFIG --exists "$2" 2>&AS_MESSAGE_LOG_FD &&
1172 $1_CFLAGS=`$PKG_CONFIG --cflags "$2" 2>&AS_MESSAGE_LOG_FD` &&
1173 $1_LIBS=`$PKG_CONFIG --libs "$2" 2>&AS_MESSAGE_LOG_FD`; then
1180 $1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1181 $1_LIBS=`AS_ECHO(["$$1_LIBS"]) | sed -e 's,///*,/,g'`
1182 AC_MSG_RESULT([yes CFLAGS='$$1_CFLAGS' LIBS='$$1_LIBS'])
1188 ## If we have a custom action on failure, don't print errors, but
1189 ## do set a variable so people can do so.
1190 $1_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "$2"`
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_CACHE_CHECK(for struct exception, emacs_cv_struct_exception,
1305 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <math.h>]],
1306 [[static struct exception x; x.arg1 = x.arg2 = x.retval; x.name = ""; x.type = 1;]])],
1307 emacs_cv_struct_exception=yes, emacs_cv_struct_exception=no))
1308 HAVE_EXCEPTION=$emacs_cv_struct_exception
1309 dnl Define on Darwin so emacs symbols will not conflict with those
1310 dnl in the System framework. Otherwise -prebind will not work.
1311 if test $emacs_cv_struct_exception != yes || test $opsys = darwin; then
1312 AC_DEFINE(NO_MATHERR, 1, [Define to 1 if you don't have struct exception in math.h.])
1315 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1316 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1317 #if HAVE_SYS_SOCKET_H
1318 #include <sys/socket.h>
1320 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1321 #if HAVE_SYS_SOCKET_H
1322 #include <sys/socket.h>
1324 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1325 #if HAVE_SYS_SOCKET_H
1326 #include <sys/socket.h>
1329 dnl checks for structure members
1330 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1331 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1332 struct ifreq.ifr_addr,
1333 struct ifreq.ifr_addr.sa_len], , ,
1334 [AC_INCLUDES_DEFAULT
1335 #if HAVE_SYS_SOCKET_H
1336 #include <sys/socket.h>
1342 dnl Check for endianness.
1343 dnl AC_C_BIGENDIAN is done by gnulib.
1345 dnl check for Make feature
1346 dnl AC_PROG_MAKE_SET is done by Automake.
1351 dnl check for GNU Make if we have GCC and autodepend is on.
1352 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1353 AC_MSG_CHECKING([whether we are using GNU Make])
1355 testval=`${MAKE-make} --version 2>/dev/null | grep 'GNU Make'`
1356 if test "x$testval" != x; then
1359 ac_enable_autodepend=no
1361 AC_MSG_RESULT([$HAVE_GNU_MAKE])
1362 if test $HAVE_GNU_MAKE = yes; then
1363 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1364 SAVE_CFLAGS="$CFLAGS"
1365 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1366 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1367 CFLAGS="$SAVE_CFLAGS"
1368 test -f deps.d || ac_enable_autodepend=no
1370 AC_MSG_RESULT([$ac_enable_autodepend])
1372 if test $ac_enable_autodepend = yes; then
1373 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1374 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1375 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1376 deps_frag=autodeps.mk
1379 deps_frag=$srcdir/src/$deps_frag
1382 AC_SUBST_FILE(deps_frag)
1385 lisp_frag=$srcdir/src/lisp.mk
1386 AC_SUBST_FILE(lisp_frag)
1389 dnl checks for operating system services
1390 AC_SYS_LONG_FILE_NAMES
1392 #### Choose a window system.
1394 ## We leave window_system equal to none if
1395 ## we end up building without one. Any new window system should
1396 ## set window_system to an appropriate value and add objects to
1397 ## window-system-specific substs.
1401 if test "$no_x" != yes; then
1405 LD_SWITCH_X_SITE_RPATH=
1406 if test "${x_libraries}" != NONE; then
1407 if test -n "${x_libraries}"; then
1408 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1409 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1411 x_default_search_path=""
1412 x_search_path=${x_libraries}
1413 if test -z "${x_search_path}"; then
1414 x_search_path=/usr/lib
1416 for x_library in `echo ${x_search_path}: | \
1417 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1419 ${x_library}/X11/%L/%T/%N%C%S:\
1420 ${x_library}/X11/%l/%T/%N%C%S:\
1421 ${x_library}/X11/%T/%N%C%S:\
1422 ${x_library}/X11/%L/%T/%N%S:\
1423 ${x_library}/X11/%l/%T/%N%S:\
1424 ${x_library}/X11/%T/%N%S"
1425 if test x"${x_default_search_path}" = x; then
1426 x_default_search_path=${x_search_path}
1428 x_default_search_path="${x_search_path}:${x_default_search_path}"
1432 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1434 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1435 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1438 if test x"${x_includes}" = x; then
1439 bitmapdir=/usr/include/X11/bitmaps
1441 # accumulate include directories that have X11 bitmap subdirectories
1443 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1444 if test -d "${bmd}/X11/bitmaps"; then
1445 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1447 if test -d "${bmd}/bitmaps"; then
1448 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1451 if test ${bmd_acc} != "dummyval"; then
1452 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1459 tmp_CPPFLAGS="$CPPFLAGS"
1460 tmp_CFLAGS="$CFLAGS"
1461 CPPFLAGS="$CPPFLAGS -x objective-c"
1462 CFLAGS="$CFLAGS -x objective-c"
1463 TEMACS_LDFLAGS2="\${LDFLAGS}"
1465 if test "${with_ns}" != no; then
1466 if test "${opsys}" = darwin; then
1468 ns_appdir=`pwd`/nextstep/Emacs.app
1469 ns_appbindir=${ns_appdir}/Contents/MacOS
1470 ns_appresdir=${ns_appdir}/Contents/Resources
1471 ns_appsrc=${srcdir}/nextstep/Cocoa/Emacs.base
1472 elif test -f $GNUSTEP_CONFIG_FILE; then
1474 ns_appdir=`pwd`/nextstep/Emacs.app
1475 ns_appbindir=${ns_appdir}
1476 ns_appresdir=${ns_appdir}/Resources
1477 ns_appsrc=${srcdir}/nextstep/GNUstep/Emacs.base
1478 dnl FIXME sourcing this several times in subshells seems inefficient.
1479 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1480 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1481 dnl I seemed to need these as well with GNUstep-startup 0.25.
1482 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1483 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1484 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1485 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1486 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1487 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1488 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1489 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1490 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1494 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1495 dnl If they had chosen to either define it or not, we could have
1496 dnl just used AC_CHECK_DECL here.
1497 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1498 emacs_cv_objc_exceptions,
1499 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1500 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1504 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1505 if test $emacs_cv_objc_exceptions = yes; then
1506 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1507 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1508 [Define if GNUstep uses ObjC exceptions.])
1509 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1513 dnl This is only used while we test the NS headers, it gets reset below.
1514 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1516 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1517 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1518 files are missing or cannot be compiled.])])
1519 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1521 ns_have_nsinteger=yes,
1522 ns_have_nsinteger=no)
1523 if test $ns_have_nsinteger = yes; then
1524 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1527 AC_SUBST(TEMACS_LDFLAGS2)
1529 INSTALL_ARCH_INDEP_EXTRA=install-etc
1530 ns_self_contained=no
1534 if test "${HAVE_NS}" = yes; then
1535 if test "$with_toolkit_scroll_bars" = "no"; then
1536 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1539 window_system=nextstep
1540 # set up packaging dirs
1541 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1542 ns_self_contained=yes
1543 prefix=${ns_appresdir}
1544 exec_prefix=${ns_appbindir}
1545 dnl This one isn't really used, only archlibdir is.
1546 libexecdir="\${ns_appbindir}/libexec"
1547 archlibdir="\${ns_appbindir}/libexec"
1548 docdir="\${ns_appresdir}/etc"
1549 etcdir="\${ns_appresdir}/etc"
1550 dnl FIXME maybe set datarootdir instead.
1551 dnl That would also get applications, icons, man.
1552 infodir="\${ns_appresdir}/info"
1553 mandir="\${ns_appresdir}/man"
1554 lispdir="\${ns_appresdir}/lisp"
1555 leimdir="\${ns_appresdir}/leim"
1556 INSTALL_ARCH_INDEP_EXTRA=
1558 ns_frag=$srcdir/src/ns.mk
1559 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o"
1561 CFLAGS="$tmp_CFLAGS"
1562 CPPFLAGS="$tmp_CPPFLAGS"
1563 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1564 AC_SUBST(ns_self_contained)
1566 AC_SUBST(NS_OBJC_OBJ)
1567 AC_SUBST(LIB_STANDARD)
1568 AC_SUBST_FILE(ns_frag)
1570 ## $window_system is now set to the window system we will
1578 case "${window_system}" in
1583 case "${with_x_toolkit}" in
1584 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1585 motif ) USE_X_TOOLKIT=MOTIF ;;
1587 term_header=gtkutil.h
1588 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1589 dnl USE_X_TOOLKIT is set.
1590 USE_X_TOOLKIT=none ;;
1591 gtk3 ) with_gtk3=yes
1592 term_header=gtkutil.h
1593 USE_X_TOOLKIT=none ;;
1594 no ) USE_X_TOOLKIT=none ;;
1595 dnl If user did not say whether to use a toolkit, make this decision later:
1596 dnl use the toolkit if we have gtk, or X11R5 or newer.
1597 * ) USE_X_TOOLKIT=maybe ;;
1601 term_header=nsterm.h
1605 if test -n "${term_header}"; then
1606 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
1607 [Define to the header for the built-in window system.])
1610 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1611 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1612 if test "$HAVE_XSERVER" = true ||
1613 test -n "$DISPLAY" ||
1614 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1615 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1616 were found. You should install the relevant development files for X
1617 and for the toolkit you want, such as Gtk+, Lesstif or Motif. Also make
1618 sure you have development files for image handling, i.e.
1619 tiff, gif, jpeg, png and xpm.
1620 If you are sure you want Emacs compiled without X window support, pass
1626 ### If we're using X11, we should use the X menu package.
1629 yes ) HAVE_MENUS=yes ;;
1632 # Does the opsystem file prohibit the use of the GNU malloc?
1633 # Assume not, until told otherwise.
1637 [whether malloc is Doug Lea style],
1638 [emacs_cv_var_doug_lea_malloc],
1641 [[#include <malloc.h>
1642 static void hook (void) {}]],
1643 [[malloc_set_state (malloc_get_state ());
1644 __after_morecore_hook = hook;
1645 __malloc_initialize_hook = hook;]])],
1646 [emacs_cv_var_doug_lea_malloc=yes],
1647 [emacs_cv_var_doug_lea_malloc=no])])
1648 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1651 dnl See comments in aix4-2.h about maybe using system malloc there.
1654 ## darwin ld insists on the use of malloc routines in the System framework.
1655 darwin|sol2-10) system_malloc=yes ;;
1658 if test "${system_malloc}" = "yes"; then
1659 AC_DEFINE(SYSTEM_MALLOC, 1, [Define to use system malloc.])
1662 (The GNU allocators don't work with this system configuration.)"
1666 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1667 VMLIMIT_OBJ=vm-limit.o
1669 AC_SUBST(GMALLOC_OBJ)
1670 AC_SUBST(VMLIMIT_OBJ)
1672 if test "$doug_lea_malloc" = "yes" ; then
1673 if test "$GNU_MALLOC" = yes ; then
1675 (Using Doug Lea's new malloc from the GNU C Library.)"
1677 AC_DEFINE(DOUG_LEA_MALLOC, 1,
1678 [Define to 1 if you are using the GNU C Library.])
1680 ## Use mmap directly for allocating larger buffers.
1681 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
1682 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
1683 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
1685 gnu*) REL_ALLOC=no ;;
1689 if test x"${REL_ALLOC}" = x; then
1690 REL_ALLOC=${GNU_MALLOC}
1693 use_mmap_for_buffers=no
1695 cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
1699 if test $use_mmap_for_buffers = yes; then
1700 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
1704 LIBS="$LIBS_SYSTEM $LIBS"
1706 dnl If found, this defines HAVE_LIBDNET, which m/pmax.h checks,
1707 dnl and also adds -ldnet to LIBS, which Autoconf uses for checks.
1708 AC_CHECK_LIB(dnet, dnet_ntoa)
1709 dnl This causes -lresolv to get used in subsequent tests,
1710 dnl which causes failures on some systems such as HPUX 9.
1711 dnl AC_CHECK_LIB(resolv, gethostbyname)
1713 dnl FIXME replace main with a function we actually want from this library.
1714 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
1716 dnl Check if pthreads is available.
1718 AC_CHECK_HEADERS_ONCE(pthread.h)
1719 if test "$ac_cv_header_pthread_h"; then
1720 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
1721 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
1722 dnl testing for pthread_self if Emacs uses gmalloc.c.
1723 if test "$GMALLOC_OBJ" = gmalloc.o; then
1724 emacs_pthread_function=pthread_atfork
1726 emacs_pthread_function=pthread_self
1728 AC_CHECK_LIB(pthread, $emacs_pthread_function, HAVE_PTHREAD=yes)
1730 if test "$HAVE_PTHREAD" = yes; then
1731 case "${canonical}" in
1733 *) LIB_PTHREAD="-lpthread"
1734 LIBS="$LIB_PTHREAD $LIBS" ;;
1736 AC_DEFINE(HAVE_PTHREAD, 1, [Define to 1 if you have pthread (-lpthread).])
1738 AC_SUBST([LIB_PTHREAD])
1740 AC_CHECK_LIB(pthreads, cma_open)
1742 ## Note: when using cpp in s/aix4.2.h, this definition depended on
1743 ## HAVE_LIBPTHREADS. That was not defined earlier in configure when
1744 ## the system file was sourced. Hence the value of LIBS_SYSTEM
1745 ## added to LIBS in configure would never contain the pthreads part,
1746 ## but the value used in Makefiles might. FIXME?
1748 ## -lpthreads seems to be necessary for Xlib in X11R6, and should
1749 ## be harmless on older versions of X where it happens to exist.
1750 test "$opsys" = "aix4-2" && \
1751 test $ac_cv_lib_pthreads_cma_open = yes && \
1752 LIBS_SYSTEM="$LIBS_SYSTEM -lpthreads"
1754 dnl Check for need for bigtoc support on IBM AIX
1758 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1760 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1761 *) gdb_cv_bigtoc=-bbigtoc ;;
1764 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1765 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
1770 # Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
1771 # used for the tests that follow. We set them back to REAL_CFLAGS and
1772 # REAL_CPPFLAGS later on.
1774 REAL_CFLAGS="$CFLAGS"
1775 REAL_CPPFLAGS="$CPPFLAGS"
1777 if test "${HAVE_X11}" = "yes"; then
1778 DEFS="$C_SWITCH_X_SITE $DEFS"
1779 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
1781 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
1782 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
1784 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
1785 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
1786 # but it's more convenient here to set LD_RUN_PATH since this
1787 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
1788 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
1789 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
1793 if test "${opsys}" = "gnu-linux"; then
1794 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
1795 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1796 [[XOpenDisplay ("foo");]])],
1797 [xgnu_linux_first_failure=no],
1798 [xgnu_linux_first_failure=yes])
1799 if test "${xgnu_linux_first_failure}" = "yes"; then
1800 OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
1801 OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
1802 OLD_CPPFLAGS="$CPPFLAGS"
1804 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
1805 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
1806 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
1807 LIBS="$LIBS -b i486-linuxaout"
1808 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1809 [[XOpenDisplay ("foo");]])],
1810 [xgnu_linux_second_failure=no],
1811 [xgnu_linux_second_failure=yes])
1812 if test "${xgnu_linux_second_failure}" = "yes"; then
1813 # If we get the same failure with -b, there is no use adding -b.
1814 # So take it out. This plays safe.
1815 LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
1816 C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
1817 CPPFLAGS="$OLD_CPPFLAGS"
1828 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
1829 # header files included from there.
1830 AC_MSG_CHECKING(for Xkb)
1831 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
1832 #include <X11/XKBlib.h>]],
1833 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
1834 emacs_xkb=yes, emacs_xkb=no)
1835 AC_MSG_RESULT($emacs_xkb)
1836 if test $emacs_xkb = yes; then
1837 AC_DEFINE(HAVE_XKBGETKEYBOARD, 1, [Define to 1 if you have the XkbGetKeyboard function.])
1840 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
1841 XScreenNumberOfScreen)
1844 if test "${window_system}" = "x11"; then
1845 AC_MSG_CHECKING(X11 version 6)
1846 AC_CACHE_VAL(emacs_cv_x11_version_6,
1847 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
1848 [[#if XlibSpecificationRelease < 6
1851 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
1852 if test $emacs_cv_x11_version_6 = yes; then
1853 AC_MSG_RESULT(6 or newer)
1854 AC_DEFINE(HAVE_X11R6, 1,
1855 [Define to 1 if you have the X11R6 or newer version of Xlib.])
1856 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
1857 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
1861 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
1862 [Define if you have usable X11R6-style XIM support.])
1866 AC_MSG_RESULT(before 6)
1871 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
1873 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes"; then
1874 if test "${with_rsvg}" != "no"; then
1875 RSVG_REQUIRED=2.11.0
1876 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
1878 PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, HAVE_RSVG=yes, :)
1879 AC_SUBST(RSVG_CFLAGS)
1882 if test $HAVE_RSVG = yes; then
1883 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
1884 CFLAGS="$CFLAGS $RSVG_CFLAGS"
1885 LIBS="$RSVG_LIBS $LIBS"
1891 if test "${HAVE_X11}" = "yes"; then
1892 if test "${with_imagemagick}" != "no"; then
1893 ## 6.2.8 is the earliest version known to work, but earlier versions
1894 ## might work - let us know if you find one.
1895 ## 6.0.7 does not work. See bug#7955.
1896 IMAGEMAGICK_MODULE="Wand >= 6.2.8"
1897 PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
1898 AC_SUBST(IMAGEMAGICK_CFLAGS)
1899 AC_SUBST(IMAGEMAGICK_LIBS)
1901 if test $HAVE_IMAGEMAGICK = yes; then
1902 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
1903 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
1904 LIBS="$IMAGEMAGICK_LIBS $LIBS"
1905 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
1913 if test "${with_gtk3}" = "yes"; then
1916 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1918 dnl Checks for libraries.
1919 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1920 if test "$pkg_check_gtk" = "no" && test "$USE_X_TOOLKIT" != "maybe"; then
1921 AC_MSG_ERROR($GTK_PKG_ERRORS)
1923 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
1924 GTK_OBJ=emacsgtkfixed.o
1925 term_header=gtkutil.h
1928 if test "$pkg_check_gtk" != "yes"; then
1930 if test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
1933 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1935 dnl Checks for libraries.
1936 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1937 if test "$pkg_check_gtk" = "no" && test "$USE_X_TOOLKIT" != "maybe"; then
1938 AC_MSG_ERROR($GTK_PKG_ERRORS)
1943 if test x"$pkg_check_gtk" = xyes; then
1945 AC_SUBST(GTK_CFLAGS)
1947 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
1948 CFLAGS="$CFLAGS $GTK_CFLAGS"
1949 LIBS="$GTK_LIBS $LIBS"
1950 dnl Try to compile a simple GTK program.
1952 AC_CHECK_FUNCS(gtk_main, GTK_COMPILES=yes)
1953 if test "${GTK_COMPILES}" != "yes"; then
1954 if test "$USE_X_TOOLKIT" != "maybe"; then
1955 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
1959 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
1960 GTK_OBJ="gtkutil.o $GTK_OBJ"
1962 if $PKG_CONFIG --atleast-version=2.10 gtk+-2.0; then
1965 AC_MSG_WARN([[Your version of Gtk+ will have problems with
1966 closing open displays. This is no problem if you just use
1967 one display, but if you use more than one and close one of them
1977 if test "${HAVE_GTK}" = "yes"; then
1979 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
1980 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
1981 if test "$with_toolkit_scroll_bars" != no; then
1982 with_toolkit_scroll_bars=yes
1985 dnl Check if we have the old file selection dialog declared and
1986 dnl in the link library. In 2.x it may be in the library,
1987 dnl but not declared if deprecated featured has been selected out.
1988 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
1989 HAVE_GTK_FILE_SELECTION=no
1990 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
1991 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
1992 #include <gtk/gtk.h>])
1993 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
1994 AC_CHECK_FUNCS(gtk_file_selection_new)
1998 dnl Check for functions introduced in 2.14 and later.
1999 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2000 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2001 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2002 gtk_orientable_set_orientation \
2003 gtk_window_set_has_resize_grip)
2005 term_header=gtkutil.h
2008 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2009 dnl other platforms.
2012 if test "${with_dbus}" = "yes"; then
2013 PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
2014 if test "$HAVE_DBUS" = yes; then
2015 LIBS="$LIBS $DBUS_LIBS"
2016 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2017 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2018 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2020 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2021 dbus_type_is_valid \
2022 dbus_validate_bus_name \
2023 dbus_validate_path \
2024 dbus_validate_interface \
2025 dbus_validate_member)
2031 dnl GSettings has been tested under GNU/Linux only.
2033 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2034 PKG_CHECK_MODULES(GSETTINGS, gio-2.0 >= 2.26, HAVE_GSETTINGS=yes, HAVE_GSETTINGS=no)
2035 if test "$HAVE_GSETTINGS" = "yes"; then
2036 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2037 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2038 SETTINGS_LIBS="$GSETTINGS_LIBS"
2042 dnl GConf has been tested under GNU/Linux only.
2043 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2045 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2046 PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
2047 if test "$HAVE_GCONF" = yes; then
2048 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2049 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2050 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2051 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2055 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2056 SAVE_CFLAGS="$CFLAGS"
2058 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2059 LIBS="$SETTINGS_LIBS $LIBS"
2060 AC_CHECK_FUNCS([g_type_init])
2061 CFLAGS="$SAVE_CFLAGS"
2064 AC_SUBST(SETTINGS_CFLAGS)
2065 AC_SUBST(SETTINGS_LIBS)
2068 dnl SELinux is available for GNU/Linux only.
2071 if test "${with_selinux}" = "yes"; then
2072 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2073 if test "$HAVE_LIBSELINUX" = yes; then
2074 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2075 LIBSELINUX_LIBS=-lselinux
2078 AC_SUBST(LIBSELINUX_LIBS)
2081 HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=no
2082 if test "${with_gnutls}" = "yes" ; then
2083 PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6], HAVE_GNUTLS=yes, HAVE_GNUTLS=no)
2084 if test "${HAVE_GNUTLS}" = "yes"; then
2085 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2088 CFLAGS="$CFLAGS $LIBGNUTLS_CFLAGS"
2089 LIBS="$LIBGNUTLS_LIBS $LIBS"
2090 AC_CHECK_FUNCS(gnutls_certificate_set_verify_function, HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=yes)
2092 if test "${HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY}" = "yes"; then
2093 AC_DEFINE(HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY, 1, [Define if using GnuTLS certificate verification callbacks.])
2097 AC_SUBST(LIBGNUTLS_LIBS)
2098 AC_SUBST(LIBGNUTLS_CFLAGS)
2100 dnl Do not put whitespace before the #include statements below.
2101 dnl Older compilers (eg sunos4 cc) choke on it.
2104 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2105 if test "$with_xaw3d" != no; then
2106 AC_MSG_CHECKING(for xaw3d)
2107 AC_CACHE_VAL(emacs_cv_xaw3d,
2108 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2109 #include <X11/Intrinsic.h>
2110 #include <X11/Xaw3d/Simple.h>]],
2112 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2113 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2114 emacs_cv_xaw3d=no)])
2118 if test $emacs_cv_xaw3d = yes; then
2119 AC_MSG_RESULT([yes; using Lucid toolkit])
2123 AC_DEFINE(HAVE_XAW3D, 1,
2124 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2127 AC_MSG_CHECKING(for libXaw)
2128 AC_CACHE_VAL(emacs_cv_xaw,
2129 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2130 #include <X11/Intrinsic.h>
2131 #include <X11/Xaw/Simple.h>]],
2135 if test $emacs_cv_xaw = yes; then
2136 AC_MSG_RESULT([yes; using Lucid toolkit])
2139 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2140 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2142 AC_MSG_ERROR([No X toolkit could be found.
2143 If you are sure you want Emacs compiled without an X toolkit, pass
2145 to configure. Otherwise, install the development libraries for the toolkit
2146 that you want to use (e.g. Gtk+) and re-run configure.])
2151 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2154 if test "${USE_X_TOOLKIT}" != "none"; then
2155 AC_MSG_CHECKING(X11 toolkit version)
2156 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2157 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2158 [[#if XtSpecificationRelease < 6
2161 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2162 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2163 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2164 AC_MSG_RESULT(6 or newer)
2165 AC_DEFINE(HAVE_X11XTR6, 1,
2166 [Define to 1 if you have the X11R6 or newer version of Xt.])
2167 LIBXTR6="-lSM -lICE"
2169 ## Use libw.a along with X11R6 Xt.
2170 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2173 AC_MSG_RESULT(before 6)
2176 dnl If using toolkit, check whether libXmu.a exists.
2177 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2179 if test x$HAVE_X11XTR6 = xyes; then
2180 LIBS="-lXt -lSM -lICE $LIBS"
2184 AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
2185 test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
2186 dnl ac_cv_lib_Xmu_XmuConvertStandardSelection is also referenced below.
2190 dnl FIXME the logic here seems weird, but this is what cpp was doing.
2191 dnl Why not just test for libxmu in the normal way?
2194 ## These systems don't supply Xmu.
2196 test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
2201 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
2202 if test "${HAVE_X11}" = "yes"; then
2203 if test "${USE_X_TOOLKIT}" != "none"; then
2204 AC_CHECK_LIB(Xext, XShapeQueryExtension)
2209 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2210 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2211 if test -d /usr/include/openmotif; then
2212 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2213 emacs_cv_openmotif=yes
2214 case "$canonical" in
2215 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2216 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2219 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2222 emacs_cv_openmotif=no
2224 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2225 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2226 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2229 Motif version prior to 2.1.
2231 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2232 if test $emacs_cv_motif_version_2_1 = yes; then
2233 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2234 if test x$emacs_cv_openmotif = xyes; then
2235 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2238 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2239 # We put this in CFLAGS temporarily to precede other -I options
2240 # that might be in CFLAGS temporarily.
2241 # We put this in CPPFLAGS where it precedes the other -I options.
2242 OLD_CPPFLAGS=$CPPFLAGS
2244 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2245 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2246 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2248 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2249 if test $emacs_cv_lesstif = yes; then
2250 # Make sure this -I option remains in CPPFLAGS after it is set
2251 # back to REAL_CPPFLAGS.
2252 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2253 # have those other -I options anyway. Ultimately, having this
2254 # directory ultimately in CPPFLAGS will be enough.
2255 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2256 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2259 CPPFLAGS=$OLD_CPPFLAGS
2262 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2263 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2266 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2267 dnl using Motif or Xaw3d is available, and unless
2268 dnl --with-toolkit-scroll-bars=no was specified.
2270 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2271 [Define to 1 if we should use toolkit scroll bars.])dnl
2272 USE_TOOLKIT_SCROLL_BARS=no
2273 if test "${with_toolkit_scroll_bars}" != "no"; then
2274 if test "${USE_X_TOOLKIT}" != "none"; then
2275 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2276 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2278 USE_TOOLKIT_SCROLL_BARS=yes
2279 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2280 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2281 USE_TOOLKIT_SCROLL_BARS=yes
2283 elif test "${HAVE_GTK}" = "yes"; then
2284 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2285 USE_TOOLKIT_SCROLL_BARS=yes
2286 elif test "${HAVE_NS}" = "yes"; then
2287 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2288 USE_TOOLKIT_SCROLL_BARS=yes
2292 dnl See if XIM is available.
2293 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2294 #include <X11/Xlib.h>
2295 #include <X11/Xresource.h>]],
2296 [[XIMProc callback;]])],
2298 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2301 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2303 if test "${with_xim}" != "no"; then
2304 AC_DEFINE(USE_XIM, 1,
2305 [Define to 1 if we should use XIM, if it is available.])
2309 if test "${HAVE_XIM}" != "no"; then
2311 if test "$GCC" = yes; then
2312 CFLAGS="$CFLAGS --pedantic-errors"
2314 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2315 #include <X11/Xlib.h>
2316 #include <X11/Xresource.h>]],
2322 XPointer *client_data;
2324 /* If we're not using GCC, it's probably not XFree86, and this is
2325 probably right, but we can't use something like --pedantic-errors. */
2326 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2327 char*, XIMProc, XPointer*);
2329 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2331 [emacs_cv_arg6_star=yes])
2332 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2333 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2334 either XPointer or XPointer*.])dnl
2335 if test "$emacs_cv_arg6_star" = yes; then
2336 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2338 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2343 ### Start of font-backend (under any platform) section.
2344 # (nothing here yet -- this is a placeholder)
2345 ### End of font-backend (under any platform) section.
2347 ### Start of font-backend (under X11) section.
2348 if test "${HAVE_X11}" = "yes"; then
2349 PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
2351 ## Use -lXft if available, unless `--with-xft=no'.
2353 if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2356 if test "x${with_xft}" != "xno"; then
2358 PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
2359 ## Because xftfont.c uses XRenderQueryExtension, we also
2360 ## need to link to -lXrender.
2362 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2363 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2364 OLD_CPPFLAGS="$CPPFLAGS"
2365 OLD_CFLAGS="$CFLAGS"
2367 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2368 CFLAGS="$CFLAGS $XFT_CFLAGS"
2369 XFT_LIBS="-lXrender $XFT_LIBS"
2370 LIBS="$XFT_LIBS $LIBS"
2371 AC_CHECK_HEADER(X11/Xft/Xft.h,
2372 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS))
2374 if test "${HAVE_XFT}" = "yes"; then
2375 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2377 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2379 CPPFLAGS="$OLD_CPPFLAGS"
2380 CFLAGS="$OLD_CFLAGS"
2382 fi # "${HAVE_XFT}" = "yes"
2383 fi # "$HAVE_XFT" != no
2384 fi # "x${with_xft}" != "xno"
2386 ## We used to allow building with FreeType and without Xft.
2387 ## However, the ftx font backend driver is not in good shape.
2388 if test "$HAVE_XFT" != "yes"; then
2389 dnl For the "Does Emacs use" message at the end.
2393 dnl Strict linkers fail with
2394 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2395 dnl if -lfreetype is not specified.
2396 dnl The following is needed to set FREETYPE_LIBS.
2397 PKG_CHECK_MODULES(FREETYPE, freetype2, HAVE_FREETYPE=yes,
2400 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2404 if test "${HAVE_FREETYPE}" = "yes"; then
2405 AC_DEFINE(HAVE_FREETYPE, 1,
2406 [Define to 1 if using the freetype and fontconfig libraries.])
2407 if test "${with_libotf}" != "no"; then
2408 PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
2410 if test "$HAVE_LIBOTF" = "yes"; then
2411 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2412 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2413 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2414 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2415 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2416 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2417 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2421 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2422 dnl Does the new font backend require it, or can it work without it?
2426 if test "${HAVE_LIBOTF}" = yes; then
2427 if test "${with_m17n_flt}" != "no"; then
2428 PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
2429 if test "$HAVE_M17N_FLT" = "yes"; then
2430 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2441 ### End of font-backend (under X11) section.
2443 AC_SUBST(FREETYPE_CFLAGS)
2444 AC_SUBST(FREETYPE_LIBS)
2445 AC_SUBST(FONTCONFIG_CFLAGS)
2446 AC_SUBST(FONTCONFIG_LIBS)
2447 AC_SUBST(LIBOTF_CFLAGS)
2448 AC_SUBST(LIBOTF_LIBS)
2449 AC_SUBST(M17N_FLT_CFLAGS)
2450 AC_SUBST(M17N_FLT_LIBS)
2452 ### Use -lXpm if available, unless `--with-xpm=no'.
2455 if test "${HAVE_X11}" = "yes"; then
2456 if test "${with_xpm}" != "no"; then
2457 AC_CHECK_HEADER(X11/xpm.h,
2458 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2459 if test "${HAVE_XPM}" = "yes"; then
2460 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2461 AC_EGREP_CPP(no_return_alloc_pixels,
2462 [#include "X11/xpm.h"
2463 #ifndef XpmReturnAllocPixels
2464 no_return_alloc_pixels
2466 ], HAVE_XPM=no, HAVE_XPM=yes)
2468 if test "${HAVE_XPM}" = "yes"; then
2476 if test "${HAVE_XPM}" = "yes"; then
2477 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2483 ### Use -ljpeg if available, unless `--with-jpeg=no'.
2486 if test "${HAVE_X11}" = "yes"; then
2487 if test "${with_jpeg}" != "no"; then
2488 dnl Checking for jpeglib.h can lose because of a redefinition of
2490 AC_CHECK_HEADER(jerror.h,
2491 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
2494 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2495 if test "${HAVE_JPEG}" = "yes"; then
2496 AC_DEFINE(HAVE_JPEG)
2497 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2498 [#include <jpeglib.h>
2499 version=JPEG_LIB_VERSION
2501 [AC_DEFINE(HAVE_JPEG)],
2502 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2505 if test "${HAVE_JPEG}" = "yes"; then
2511 ### Use -lpng if available, unless `--with-png=no'.
2514 if test "${HAVE_X11}" = "yes"; then
2515 if test "${with_png}" != "no"; then
2516 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
2517 # in /usr/include/libpng.
2518 AC_CHECK_HEADERS(png.h libpng/png.h, break)
2519 if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
2520 AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
2524 if test "${HAVE_PNG}" = "yes"; then
2525 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2526 LIBPNG="-lpng -lz -lm"
2528 AC_CHECK_DECL(png_longjmp,
2530 [AC_DEFINE(PNG_DEPSTRUCT, [],
2531 [Define to empty to suppress deprecation warnings when building
2532 with --enable-gcc-warnings and with libpng versions before 1.5,
2533 which lack png_longjmp.])],
2534 [[#ifdef HAVE_LIBPNG_PNG_H
2535 # include <libpng/png.h>
2544 ### Use -ltiff if available, unless `--with-tiff=no'.
2547 if test "${HAVE_X11}" = "yes"; then
2548 if test "${with_tiff}" != "no"; then
2549 AC_CHECK_HEADER(tiffio.h,
2551 # At least one tiff package requires the jpeg library.
2552 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
2553 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
2556 if test "${HAVE_TIFF}" = "yes"; then
2557 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
2558 dnl FIXME -lz -lm, as per libpng?
2564 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
2567 if test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no"; then
2568 AC_CHECK_HEADER(gif_lib.h,
2569 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
2570 # Earlier versions can crash Emacs.
2571 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])
2573 if test "$HAVE_GIF" = yes; then
2575 elif test "$HAVE_GIF" = maybe; then
2576 # If gif_lib.h but no libgif, try libungif.
2577 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
2578 test "$HAVE_GIF" = yes && LIBGIF=-lungif
2581 if test "${HAVE_GIF}" = "yes"; then
2582 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
2587 dnl Check for required libraries.
2588 if test "${HAVE_X11}" = "yes"; then
2591 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
2592 MISSING="libXpm" && WITH_NO="--with-xpm=no"
2593 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
2594 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
2595 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
2596 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
2597 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
2598 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
2599 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
2600 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
2602 if test "X${MISSING}" != X; then
2603 AC_MSG_ERROR([The following required libraries were not found:
2605 Maybe some development libraries/packages are missing?
2606 If you don't want to link with them give
2608 as options to configure])
2612 ### Use -lgpm if available, unless `--with-gpm=no'.
2615 if test "${with_gpm}" != "no"; then
2616 AC_CHECK_HEADER(gpm.h,
2617 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
2619 if test "${HAVE_GPM}" = "yes"; then
2620 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
2626 dnl Check for malloc/malloc.h on darwin
2627 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
2630 ### Use NeXTstep API to implement GUI.
2631 if test "${HAVE_NS}" = "yes"; then
2632 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
2633 if test "${NS_IMPL_COCOA}" = "yes"; then
2634 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
2636 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
2637 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
2638 # See also .m.o rule in Makefile.in */
2639 # FIXME: are all these flags really needed? Document here why. */
2640 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
2641 ## Extra CFLAGS applied to src/*.m files.
2642 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"
2644 # We also have mouse menus.
2650 ### Use session management (-lSM -lICE) if available
2653 if test "${HAVE_X11}" = "yes"; then
2654 AC_CHECK_HEADER(X11/SM/SMlib.h,
2655 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
2657 if test "${HAVE_X_SM}" = "yes"; then
2658 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
2662 *) LIBS="$LIBXSM $LIBS" ;;
2668 ### Use libxml (-lxml2) if available
2670 if test "${with_xml2}" != "no"; then
2671 ### I'm not sure what the version number should be, so I just guessed.
2672 PKG_CHECK_MODULES(LIBXML2, libxml-2.0 > 2.6.17, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2673 if test "${HAVE_LIBXML2}" = "yes"; then
2674 LIBS="$LIBXML2_LIBS $LIBS"
2675 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2676 if test "${HAVE_LIBXML2}" = "yes"; then
2677 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
2684 AC_SUBST(LIBXML2_LIBS)
2685 AC_SUBST(LIBXML2_CFLAGS)
2687 # If netdb.h doesn't declare h_errno, we must declare it by hand.
2688 AC_CACHE_CHECK(whether netdb declares h_errno,
2689 emacs_cv_netdb_declares_h_errno,
2690 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
2691 [[return h_errno;]])],
2692 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
2693 if test $emacs_cv_netdb_declares_h_errno = yes; then
2694 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
2697 # fmod, logb, and frexp are found in -lm on most systems.
2698 # On HPUX 9.01, -lm does not contain logb, so check for sqrt.
2699 AC_CHECK_LIB(m, sqrt)
2701 # Check for mail-locking functions in a "mail" library. Probably this should
2702 # have the same check as for liblockfile below.
2703 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
2704 if test $have_mail = yes; then
2706 LIBS="$LIBS_MAIL $LIBS"
2707 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
2711 dnl Debian, at least:
2712 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
2713 if test $have_lockfile = yes; then
2714 LIBS_MAIL=-llockfile
2715 LIBS="$LIBS_MAIL $LIBS"
2716 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
2718 # If we have the shared liblockfile, assume we must use it for mail
2719 # locking (e.g. Debian). If we couldn't link against liblockfile
2720 # (no liblockfile.a installed), ensure that we don't need to.
2721 dnl This works for files generally, not just executables.
2722 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
2723 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
2724 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
2725 if test $ac_cv_prog_liblockfile = yes; then
2726 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
2727 This probably means that movemail could lose mail.
2728 There may be a `development' package to install containing liblockfile.])
2731 AC_CHECK_HEADERS_ONCE(maillock.h)
2734 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
2735 ## interlock access to the mail spool. The alternative is a lock file named
2736 ## /usr/spool/mail/$USER.lock.
2739 aix4-2) mail_lock="lockf" ;;
2741 gnu|freebsd|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
2743 ## On GNU/Linux systems, both methods are used by various mail programs.
2744 ## I assume most people are using newer mailers that have heard of flock.
2745 ## Change this if you need to.
2746 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
2747 ## configure gets the right answers, and that means *NOT* using flock.
2748 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
2749 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
2750 ## Debian maintainer hasn't provided a clean fix for Emacs.
2751 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
2752 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
2753 ## correct logic. -- fx
2754 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
2755 ## liblockfile is a Free Software replacement for libmail, used on
2756 ## Debian systems and elsewhere. -rfr.
2759 if test $have_mail = yes || test $have_lockfile = yes; then
2760 test $ac_cv_header_maillock_h = yes && mail_lock=no
2766 case "$mail_lock" in
2767 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
2769 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
2771 *) BLESSMAIL_TARGET="need-blessmail" ;;
2773 AC_SUBST(BLESSMAIL_TARGET)
2776 AC_CHECK_FUNCS(gethostname \
2777 closedir getrusage get_current_dir_name \
2778 lrand48 logb frexp fmod cbrt setsid \
2779 fpathconf select euidaccess getpagesize setlocale \
2780 utimes getrlimit setrlimit setpgid getcwd shutdown getaddrinfo \
2781 __fpending strsignal setitimer \
2782 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
2783 gai_strerror mkstemp getline getdelim fsync sync \
2784 difftime posix_memalign \
2785 getpwent endpwent getgrent endgrent \
2787 cfmakeraw cfsetspeed copysign __executable_start)
2789 dnl getwd appears to be buggy on SVR4.2, so we don't use it.
2790 if test $opsys = unixware; then
2791 dnl In case some other test ends up checking for getwd.
2792 AC_DEFINE(BROKEN_GETWD, 1, [Define if getwd should not be used.])
2794 AC_CHECK_FUNCS(getwd)
2797 ## Eric Backus <ericb@lsid.hp.com> says, HP-UX 9.x on HP 700 machines
2798 ## has a broken `rint' in some library versions including math library
2799 ## version number A.09.05.
2800 ## You can fix the math library by installing patch number PHSS_4630.
2801 ## But we can fix it more reliably for Emacs by just not using rint.
2802 ## We also skip HAVE_RANDOM - see comments in src/conf_post.h.
2805 *) AC_CHECK_FUNCS(random rint) ;;
2808 dnl Cannot use AC_CHECK_FUNCS
2809 AC_CACHE_CHECK([for __builtin_unwind_init],
2810 emacs_cv_func___builtin_unwind_init,
2811 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
2812 emacs_cv_func___builtin_unwind_init=yes,
2813 emacs_cv_func___builtin_unwind_init=no)])
2814 if test $emacs_cv_func___builtin_unwind_init = yes; then
2815 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
2816 [Define to 1 if you have the `__builtin_unwind_init' function.])
2819 AC_CHECK_HEADERS_ONCE(sys/un.h)
2826 AC_CHECK_FUNCS(grantpt)
2828 # PTY-related GNU extensions.
2829 AC_CHECK_FUNCS(getpt posix_openpt)
2831 # Check this now, so that we will NOT find the above functions in ncurses.
2832 # That is because we have not set up to link ncurses in lib-src.
2833 # It's better to believe a function is not available
2834 # than to expect to find it in ncurses.
2835 # Also we need tputs and friends to be able to build at all.
2836 AC_MSG_CHECKING([for library containing tputs])
2837 # Run a test program that contains a call to tputs, a call that is
2838 # never executed. This tests whether a pre-'main' dynamic linker
2839 # works with the library. It's too much trouble to actually call
2840 # tputs in the test program, due to portability hassles. When
2841 # cross-compiling, assume the test program will run if it links.
2842 AC_DEFUN([tputs_link_source], [
2844 [[extern void tputs (const char *, int, int (*)(int));
2845 int main (int argc, char **argv)
2848 tputs (argv[0], 0, 0);
2852 # Maybe curses should be tried earlier?
2853 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
2854 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
2856 if test -z "$tputs_library"; then
2860 LIBS_TERMCAP=-l$tputs_library
2862 LIBS="$LIBS_TERMCAP $LIBS"
2864 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
2865 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
2867 if test "X$msg" != Xno; then
2871 AC_MSG_RESULT([$msg])
2872 if test "X$msg" = Xno; then
2873 AC_MSG_ERROR([The required function `tputs' was not found in any library.
2874 The following libraries were tried (in order):
2875 libtinfo, libncurses, libterminfo, libtermcap, libcurses
2876 Please try installing whichever of these libraries is most appropriate
2877 for your system, together with its header files.
2878 For example, a libncurses-dev(el) or similar package.])
2881 ## Use termcap instead of terminfo?
2882 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
2884 ## FIXME? In the cases below where we unconditionally set
2885 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
2886 ## if that was found above to have tputs.
2887 ## Should we use the gnu* logic everywhere?
2889 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
2890 ## The ncurses library has been moved out of the System framework in
2891 ## Mac OS X 10.2. So if configure detects it, set the command-line
2892 ## option to use it.
2893 darwin) LIBS_TERMCAP="-lncurses" ;;
2895 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
2898 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
2899 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
2900 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
2901 [[#if __FreeBSD_version < 400000
2904 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
2906 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
2908 if test $emacs_cv_freebsd_terminfo = yes; then
2909 LIBS_TERMCAP="-lncurses"
2912 LIBS_TERMCAP="-ltermcap"
2917 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
2919 LIBS_TERMCAP="-ltermcap"
2923 openbsd) LIBS_TERMCAP="-lncurses" ;;
2925 ## hpux: Make sure we get select from libc rather than from libcurses
2926 ## because libcurses on HPUX 10.10 has a broken version of select.
2927 ## We used to use -lc -lcurses, but this may be cleaner.
2928 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
2929 # set that way, now it uses the default). Isn't this a contradiction?
2930 hpux*) LIBS_TERMCAP="-ltermcap" ;;
2934 TERMCAP_OBJ=tparam.o
2935 if test $TERMINFO = yes; then
2936 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
2937 TERMCAP_OBJ=terminfo.o
2939 AC_SUBST(LIBS_TERMCAP)
2940 AC_SUBST(TERMCAP_OBJ)
2943 # Do we have res_init, for detecting changes in /etc/resolv.conf?
2944 # On Darwin, res_init appears not to be useful: see bug#562 and
2945 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
2948 if test $opsys != darwin; then
2950 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
2951 #include <arpa/nameser.h>
2952 #include <resolv.h>]],
2953 [[return res_init();]])],
2954 have_res_init=yes, have_res_init=no)
2955 if test "$have_res_init" = no; then
2957 LIBS="$LIBS -lresolv"
2958 AC_MSG_CHECKING(for res_init with -lresolv)
2959 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
2960 #include <arpa/nameser.h>
2961 #include <resolv.h>]],
2962 [[return res_init();]])],
2963 have_res_init=yes, have_res_init=no)
2964 AC_MSG_RESULT($have_res_init)
2965 if test "$have_res_init" = yes ; then
2971 if test "$have_res_init" = yes; then
2972 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
2976 # Do we need the Hesiod library to provide the support routines?
2977 dnl FIXME? Should we be skipping this on Darwin too?
2979 if test "$with_hesiod" != no ; then
2980 # Don't set $LIBS here -- see comments above. FIXME which comments?
2981 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
2982 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
2983 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
2984 if test "$resolv" = yes ; then
2989 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
2990 hesiod=yes, :, $RESOLVLIB)])
2992 if test x"$hesiod" = xyes; then
2993 AC_DEFINE(HAVE_LIBHESIOD, 1,
2994 [Define to 1 if you have the hesiod library (-lhesiod).])
3000 # Do we need libresolv (due to res_init or Hesiod)?
3001 if test "$resolv" = yes && test $opsys != darwin; then
3002 AC_DEFINE(HAVE_LIBRESOLV, 1,
3003 [Define to 1 if you have the resolv library (-lresolv).])
3010 # These tell us which Kerberos-related libraries to use.
3017 if test "${with_kerberos}" != no; then
3018 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3019 if test $have_com_err = yes; then
3020 COM_ERRLIB=-lcom_err
3021 LIBS="$COM_ERRLIB $LIBS"
3022 AC_DEFINE(HAVE_LIBCOM_ERR, 1, [Define to 1 if you have the `com_err' library (-lcom_err).])
3024 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3025 if test $have_crypto = yes; then
3027 LIBS="$CRYPTOLIB $LIBS"
3028 AC_DEFINE(HAVE_LIBCRYPTO, 1, [Define to 1 if you have the `crypto' library (-lcrypto).])
3030 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3031 if test $have_k5crypto = yes; then
3032 CRYPTOLIB=-lk5crypto
3033 LIBS="$CRYPTOLIB $LIBS"
3034 AC_DEFINE(HAVE_LIBK5CRYPTO, 1, [Define to 1 if you have the `k5crypto' library (-lk5crypto).])
3036 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3037 if test $have_krb5=yes; then
3039 LIBS="$KRB5LIB $LIBS"
3040 AC_DEFINE(HAVE_LIBKRB5, 1, [Define to 1 if you have the `krb5' library (-lkrb5).])
3042 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3043 if test "${with_kerberos5}" = no; then
3044 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3045 if test $have_des425 = yes; then
3047 LIBS="$DESLIB $LIBS"
3048 AC_DEFINE(HAVE_LIBDES425, 1, [Define to 1 if you have the `des425' library (-ldes425).])
3050 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3051 if test $have_des = yes; then
3053 LIBS="$DESLIB $LIBS"
3054 AC_DEFINE(HAVE_LIBDES, 1, [Define to 1 if you have the `des' library (-ldes).])
3057 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3058 if test $have_krb4 = yes; then
3060 LIBS="$KRB4LIB $LIBS"
3061 AC_DEFINE(HAVE_LIBKRB4, 1, [Define to 1 if you have the `krb4' library (-lkrb4).])
3063 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3064 if test $have_krb = yes; then
3066 LIBS="$KRB4LIB $LIBS"
3067 AC_DEFINE(HAVE_LIBKRB, 1, [Define to 1 if you have the `krb' library (-lkrb).])
3072 if test "${with_kerberos5}" != no; then
3073 AC_CHECK_HEADERS(krb5.h,
3074 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3075 [#include <krb5.h>])])
3077 AC_CHECK_HEADERS(des.h,,
3078 [AC_CHECK_HEADERS(kerberosIV/des.h,,
3079 [AC_CHECK_HEADERS(kerberos/des.h)])])
3080 AC_CHECK_HEADERS(krb.h,,
3081 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3082 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3084 AC_CHECK_HEADERS(com_err.h)
3087 AC_SUBST(COM_ERRLIB)
3093 AC_CHECK_FUNCS_ONCE(tzset)
3094 AC_MSG_CHECKING(whether localtime caches TZ)
3095 AC_CACHE_VAL(emacs_cv_localtime_cache,
3096 [if test x$ac_cv_func_tzset = xyes; then
3097 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3098 char TZ_GMT0[] = "TZ=GMT0";
3099 char TZ_PST8[] = "TZ=PST8";
3102 time_t now = time ((time_t *) 0);
3103 int hour_GMT0, hour_unset;
3104 if (putenv (TZ_GMT0) != 0)
3106 hour_GMT0 = localtime (&now)->tm_hour;
3108 hour_unset = localtime (&now)->tm_hour;
3109 if (putenv (TZ_PST8) != 0)
3111 if (localtime (&now)->tm_hour == hour_GMT0)
3114 if (localtime (&now)->tm_hour != hour_unset)
3117 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3118 [# If we have tzset, assume the worst when cross-compiling.
3119 emacs_cv_localtime_cache=yes])
3121 # If we lack tzset, report that localtime does not cache TZ,
3122 # since we can't invalidate the cache if we don't have tzset.
3123 emacs_cv_localtime_cache=no
3125 AC_MSG_RESULT($emacs_cv_localtime_cache)
3126 if test $emacs_cv_localtime_cache = yes; then
3127 AC_DEFINE(LOCALTIME_CACHE, 1,
3128 [Define to 1 if localtime caches TZ.])
3132 AC_CHECK_FUNC(socket, , ok_so_far=no)
3133 if test $ok_so_far = yes; then
3134 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3136 if test $ok_so_far = yes; then
3137 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3139 if test $ok_so_far = yes; then
3140 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3141 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3142 [Define to 1 if you have inet sockets.])
3145 if test -f /usr/lpp/X11/bin/smt.exp; then
3146 AC_DEFINE(HAVE_AIX_SMT_EXP, 1,
3147 [Define to 1 if the file /usr/lpp/X11/bin/smt.exp exists.])
3150 AC_MSG_CHECKING(whether system supports dynamic ptys)
3151 if test -d /dev/pts && ls -d /dev/ptmx > /dev/null 2>&1 ; then
3153 AC_DEFINE(HAVE_DEV_PTMX, 1, [Define to 1 if dynamic ptys are supported.])
3160 AC_CHECK_FUNCS(snprintf)
3162 dnl Adapted from Haible's version.
3163 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3164 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3165 [[char* cs = nl_langinfo(CODESET);]])],
3166 emacs_cv_langinfo_codeset=yes,
3167 emacs_cv_langinfo_codeset=no)
3169 if test $emacs_cv_langinfo_codeset = yes; then
3170 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3171 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3176 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3177 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3178 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3179 if test "$emacs_cv_c_restrict_arr" = yes; then
3180 AC_DEFINE(__restrict_arr, __restrict,
3181 [Define to compiler's equivalent of C99 restrict keyword in array
3182 declarations. Define as empty for no equivalent.])
3185 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3186 dnl how the tty code is related to POSIX and/or other versions of termios.
3187 dnl The following looks like a useful start.
3189 dnl AC_SYS_POSIX_TERMIOS
3190 dnl if test $ac_cv_sys_posix_termios = yes; then
3191 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3192 dnl and macros for terminal control.])
3193 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3196 dnl Turned on June 1996 supposing nobody will mind it.
3197 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3198 in the full name stands for the login id.])
3200 dnl Every platform that uses configure (ie every non-MS platform)
3201 dnl supports this. There is a create-lockfiles option you can
3202 dnl customize if you do not want the lock files to be written.
3203 dnl So it is not clear that this #define still needs to exist.
3204 AC_DEFINE(CLASH_DETECTION, 1, [Define if you want lock files to be written,
3205 so that Emacs can tell instantly when you try to modify a file that
3206 someone else has modified in his/her Emacs.])
3208 AH_TEMPLATE(FLOAT_CHECK_DOMAIN, [Define if the float library doesn't
3209 handle errors by either setting errno, or signaling SIGFPE/SIGILL.])
3211 AH_TEMPLATE(HAVE_INVERSE_HYPERBOLIC, [Define if you have the functions
3212 acosh, asinh, and atanh.])
3214 dnl Everybody supports this, except MS.
3215 dnl Seems like the kind of thing we should be testing for, though.
3216 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3217 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3219 dnl Everybody supports this, except MS-DOS.
3220 dnl Seems like the kind of thing we should be testing for, though.
3221 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3222 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3223 4.2-compatible sockets.])
3225 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3227 AC_DEFINE(NULL_DEVICE, ["/dev/null"], [Name of the file to open to get
3228 a null file, or a data sink.])
3230 AC_DEFINE(SEPCHAR, [':'], [Character that separates PATH elements.])
3232 dnl Everybody supports this, except MS-DOS.
3233 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3235 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3238 AC_DEFINE(DIRECTORY_SEP, ['/'],
3239 [Character that separates directories in a file name.])
3241 dnl Only used on MS platforms.
3242 AH_TEMPLATE(DEVICE_SEP, [Character that separates a device in a file name.])
3244 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
3245 [Returns true if character is a device separator.])
3247 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
3248 [Returns true if character is a directory separator.])
3250 dnl On MS, this also accepts IS_DEVICE_SEP.
3251 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
3252 [Returns true if character is any form of separator.])
3255 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
3259 dnl Unfortunately without libXmu we cannot support EditRes.
3260 if test x$ac_cv_lib_Xmu_XmuConvertStandardSelection != xyes; then
3261 AC_DEFINE(NO_EDITRES, 1)
3266 dnl Assar Westerlund <assar@sics.se> says this is necessary for
3267 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
3268 AC_DEFINE(NO_EDITRES, 1)
3274 darwin | gnu | hpux* | *bsd )
3275 AC_DEFINE(NO_TERMIO, 1, [Define if termio.h should not be included.])
3278 irix6-5 | sol2* | unixware )
3279 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
3280 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
3281 dnl need the constant to dimension an array. So wire in the appropriate
3283 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
3289 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
3290 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
3291 hpux* | irix6-5 | openbsd | sol2* | unixware )
3292 AC_DEFINE(BROKEN_SIGIO, 1, [Define if SIGIO should not be used.])
3296 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
3297 AC_DEFINE(BROKEN_FIONREAD, 1, [Define if FIONREAD should not be used.])
3298 dnl As we define BROKEN_FIONREAD, SIGIO will be undefined in systty.h.
3299 dnl But, on AIX, SIGAIO, SIGPTY, and SIGPOLL are defined as SIGIO,
3300 dnl which causes compilation error at init_signals in sysdep.c.
3301 dnl So, we define these macros so that syssignal.h detects them
3302 dnl and undefine SIGAIO, SIGPTY and SIGPOLL.
3303 AC_DEFINE(BROKEN_SIGAIO, 1, [Define if SIGAIO should not be used.])
3304 AC_DEFINE(BROKEN_SIGPOLL,1, [Define if SIGPOLL should not be used.])
3305 AC_DEFINE(BROKEN_SIGPTY, 1, [Define if SIGPTY should not be used.])
3307 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
3308 dnl the way this system works, libc functions that return malloced
3309 dnl memory use the libc malloc implementation. Calling xfree or
3310 dnl xrealloc on the results of such functions results in a crash.
3312 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
3313 dnl but that does not currently work on this system.
3315 dnl It is possible to completely override the malloc implementation on
3316 dnl AIX, but that involves putting the malloc functions in a shared
3317 dnl library and setting the MALLOCTYPE environment variable to point to
3318 dnl that shared library.
3320 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
3321 dnl to avoid a crash just use the Emacs implementation for that function.
3323 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
3324 dnl of this file, so that we do not check for get_current_dir_name
3325 dnl on AIX. But that might be fragile if something else ends
3326 dnl up testing for get_current_dir_name as a dependency.
3327 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
3328 get_current_dir_name should not be used.])
3332 dnl Circumvent a bug in FreeBSD. In the following sequence of
3333 dnl writes/reads on a PTY, read(2) returns bogus data:
3335 dnl write(2) 1022 bytes
3336 dnl write(2) 954 bytes, get EAGAIN
3337 dnl read(2) 1024 bytes in process_read_output
3338 dnl read(2) 11 bytes in process_read_output
3340 dnl That is, read(2) returns more bytes than have ever been written
3341 dnl successfully. The 1033 bytes read are the 1022 bytes written
3342 dnl successfully after processing (for example with CRs added if the
3343 dnl terminal is set up that way which it is here). The same bytes will
3344 dnl be seen again in a later read(2), without the CRs.
3345 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
3346 work around an issue when reading from a PTY.])
3349 dnl Define the following so emacs symbols will not conflict with those
3350 dnl in the System framework. Otherwise -prebind will not work.
3352 AC_DEFINE(NO_ABORT, 1, [Do not define abort in emacs.c.])
3358 dnl FIXME Can't we test if this exists (eg /proc/$$)?
3359 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
3364 darwin | freebsd | netbsd | openbsd )
3365 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
3366 close a pty to make it a controlling terminal (it is already a
3367 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
3371 dnl FIXME Surely we can test for this rather than hard-code it.
3373 netbsd | openbsd) sound_device="/dev/audio" ;;
3374 *) sound_device="/dev/dsp" ;;
3378 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
3379 [Name of the default sound device.])
3382 dnl Emacs can read input using SIGIO and buffering characters itself,
3383 dnl or using CBREAK mode and making C-g cause SIGINT.
3384 dnl The choice is controlled by the variable interrupt_input.
3386 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
3388 dnl Emacs uses the presence or absence of the SIGIO and BROKEN_SIGIO macros
3389 dnl to indicate whether or not signal-driven I/O is possible. It uses
3390 dnl INTERRUPT_INPUT to decide whether to use it by default.
3392 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
3393 dnl CBREAK mode has two disadvantages
3394 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
3395 dnl I hear that in system V this problem does not exist.
3396 dnl 2) Control-G causes output to be discarded.
3397 dnl I do not know whether this can be fixed in system V.
3399 dnl Another method of doing input is planned but not implemented.
3400 dnl It would have Emacs fork off a separate process
3401 dnl to read the input and send it to the true Emacs process
3404 darwin | gnu-linux | gnu-kfreebsd )
3405 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
3410 dnl If the system's imake configuration file defines `NeedWidePrototypes'
3411 dnl as `NO', we must define NARROWPROTO manually. Such a define is
3412 dnl generated in the Makefile generated by `xmkmf'. If we don't define
3413 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
3414 dnl taking float or double parameters.
3416 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
3417 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
3418 file defines `NeedWidePrototypes' as `NO'.])
3423 dnl Used in process.c, this must be a loop, even if it only runs once.
3424 dnl (Except on SGI; see below. Take that, clarity and consistency!)
3425 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
3426 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
3427 dnl trying suffixes 0-16.
3428 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
3429 first PTY, if PTYs are supported.])
3430 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
3431 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
3432 end of a PTY, if non-standard.])
3433 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
3434 end of a PTY, if non-standard.])
3438 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
3439 dnl You allocate a pty by opening /dev/ptc to get the master side.
3440 dnl To get the name of the slave side, you just ttyname() the master side.
3441 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
3442 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
3446 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3447 dnl multi-line AC_DEFINEs are hard. :(
3448 AC_DEFINE(PTY_OPEN, [ do { int dummy; SIGMASKTYPE mask; mask = sigblock (sigmask (SIGCHLD)); if (-1 == openpty (&fd, &dummy, pty_name, 0, 0)) fd = -1; sigsetmask (mask); if (fd >= 0) emacs_close (dummy); } while (0)])
3449 AC_DEFINE(PTY_NAME_SPRINTF, [])
3450 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3453 dnl FIXME? Maybe use same as freebsd - see bug#12040.
3455 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3456 dnl Not used, because PTY_ITERATION is defined.
3457 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3458 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
3459 dnl But we don't have to block SIGCHLD because it is blocked in the
3460 dnl implementation of grantpt.
3461 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (0)])
3462 AC_DEFINE(PTY_NAME_SPRINTF, [])
3463 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3467 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3470 gnu-linux | gnu-kfreebsd | freebsd | netbsd )
3472 if test "x$ac_cv_func_grantpt" = xyes; then
3473 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
3474 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3475 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
3476 dnl to prevent sigchld_handler from intercepting the child's death.
3477 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptyname; sigblock (sigmask (SIGCHLD)); if (grantpt (fd) == -1 || unlockpt (fd) == -1 || !(ptyname = ptsname(fd))) { sigunblock (sigmask (SIGCHLD)); close (fd); return -1; } snprintf (pty_name, sizeof pty_name, "%s", ptyname); sigunblock (sigmask (SIGCHLD)); }])
3478 dnl if HAVE_POSIX_OPENPT
3479 if test "x$ac_cv_func_posix_openpt" = xyes; then
3480 AC_DEFINE(PTY_OPEN, [fd = posix_openpt (O_RDWR | O_NOCTTY)])
3481 AC_DEFINE(PTY_NAME_SPRINTF, [])
3483 elif test "x$ac_cv_func_getpt" = xyes; then
3484 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
3485 AC_DEFINE(PTY_NAME_SPRINTF, [])
3487 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
3490 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3495 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3496 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
3497 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
3501 dnl It looks like this cannot be right, because it is not a loop.
3502 dnl However, process.c actually does this:
3508 dnl which presumably makes it OK, since irix == sgi (?).
3509 dnl FIXME it seems like this special treatment is unnecessary?
3510 dnl Why can't irix use a single-trip loop like eg cygwin?
3511 AC_DEFINE(PTY_ITERATION, [])
3512 dnl Not used, because PTY_ITERATION is defined.
3513 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
3514 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); }])
3515 dnl No need to get the pty name at all.
3516 AC_DEFINE(PTY_NAME_SPRINTF, [])
3517 dnl No need to use sprintf to get the tty name--we get that from _getpty.
3518 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3522 dnl Uses sigblock/sigunblock rather than sighold/sigrelse,
3523 dnl which appear to be BSD4.1 specific. It may also be appropriate
3524 dnl for SVR4.x (x<2) but I'm not sure. fnf@cygnus.com
3525 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
3526 dnl from intercepting that death. If any child but grantpt's should die
3527 dnl within, it should be caught after sigrelse(2).
3528 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptsname (int), *ptyname; sigblock (sigmask (SIGCLD)); if (grantpt (fd) == -1) { emacs_close (fd); return -1; } sigunblock (sigmask (SIGCLD)); if (unlockpt (fd) == -1) { emacs_close (fd); return -1; } if (!(ptyname = ptsname (fd))) { emacs_close (fd); return -1; } snprintf (pty_name, sizeof pty_name, "%s", ptyname); }])
3532 dnl Comments are as per sol2*.
3533 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptsname (int), *ptyname; sigblock(sigmask(SIGCLD)); if (grantpt(fd) == -1) fatal("could not grant slave pty"); sigunblock(sigmask(SIGCLD)); 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); }])
3540 dnl This change means that we don't loop through allocate_pty too
3541 dnl many times in the (rare) event of a failure.
3542 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
3543 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
3544 dnl Push various streams modules onto a PTY channel. Used in process.c.
3545 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.])
3550 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
3551 "typing" a signal character on the pty.])
3554 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
3555 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
3556 aix4-2 | cygwin | gnu | irix6-5 | freebsd | netbsd | openbsd )
3557 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3560 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
3561 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
3562 gnu-linux | gnu-kfreebsd )
3564 AC_MSG_CHECKING([for signals via characters])
3565 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3566 #include <linux/version.h>
3567 #if LINUX_VERSION_CODE < 0x20400
3568 # error "Linux version too old"
3570 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
3572 AC_MSG_RESULT([$emacs_signals_via_chars])
3573 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3578 dnl Used in dispnew.c
3579 AH_TEMPLATE(PENDING_OUTPUT_COUNT, [Number of chars of output in the
3580 buffer of a stdio stream.])
3582 AC_MSG_CHECKING([whether we are using the GNU C library])
3583 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3584 #include <features.h>
3585 #ifndef __GNU_LIBRARY__
3586 # error "this is not the GNU C library"
3588 ]], [[]])], emacs_glibc=yes, emacs_glibc=no)
3589 AC_MSG_RESULT([$emacs_glibc])
3591 if test $emacs_glibc = yes; then
3593 emacs_pending_output=unknown
3596 gnu | gnu-linux | gnu-kfreebsd )
3597 AC_MSG_CHECKING([for style of pending output formalism])
3598 dnl In autoconf 2.67 and later, we could use a single test
3599 dnl since the preprocessed output is accessible in "conftest.i".
3600 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3602 #if !defined (_IO_STDIO_H) && !defined (_STDIO_USES_IOSTREAM)
3603 # error "stdio definitions not found"
3605 ]], [[]])], emacs_pending_output=new, [])
3607 if test $emacs_pending_output = unknown; then
3609 gnu-linux | gnu-kfreebsd)
3610 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3613 # error "not using uclibc"
3615 ]], [[]])], emacs_pending_output=uclibc, emacs_pending_output=old)
3620 AC_MSG_RESULT([$emacs_pending_output])
3622 case $emacs_pending_output in
3624 dnl New C libio names.
3625 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE),
3626 [((FILE)->_IO_write_ptr - (FILE)->_IO_write_base)])
3629 dnl Using the uClibc library.
3630 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE),
3631 [((FILE)->__bufpos - (FILE)->__bufstart)])
3634 dnl Old C++ iostream names.
3635 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE),
3636 [((FILE)->_pptr - (FILE)->_pbase)])
3642 if test $emacs_pending_output = unknown; then
3643 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->__bufp - (FILE)->__buffer)])
3646 else dnl !emacs_glibc
3649 cygwin | darwin | freebsd | netbsd | openbsd )
3650 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->_p - (FILE)->_bf._base)])
3654 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->__ptr - (FILE)->__base)])
3658 dnl HAVE_STDIO_EXT_H && HAVE___FPENDING
3659 if test x$ac_cv_header_stdio_ext_h = xyes && \
3660 test x$ac_cv_func___fpending = xyes; then
3661 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [__fpending (FILE)])
3662 AC_DEFINE(DISPNEW_NEEDS_STDIO_EXT, 1,
3663 [Define if dispnew.c should include stdio_ext.h.])
3665 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->_ptr - (FILE)->_base)])
3672 dnl Used in vm-limit.c
3673 AH_TEMPLATE(DATA_START, [Address of the start of the data segment.])
3674 dnl Used in lisp.h, emacs.c, mem-limits.h
3675 dnl NEWS.18 describes this as "a number which contains
3676 dnl the high bits to be inclusive or'ed with pointers that are unpacked."
3677 AH_TEMPLATE(DATA_SEG_BITS, [Extra bits to be or'd in with any pointers
3678 stored in a Lisp_Object.])
3679 dnl if Emacs uses fewer than 32 bits for the value field of a LISP_OBJECT.
3683 dnl libc defines data_start.
3684 AC_DEFINE(DATA_START, [({ extern int data_start; (char *) &data_start; })])
3688 dnl The data segment on this machine always starts at address 0x40000000.
3689 AC_DEFINE(DATA_START, [0x40000000])
3690 AC_DEFINE(DATA_SEG_BITS, [0x40000000])
3693 AC_DEFINE(DATA_START, [0x10000000])
3694 AC_DEFINE(DATA_SEG_BITS, [0x10000000])
3699 AH_TEMPLATE(ULIMIT_BREAK_VALUE, [Undocumented.])
3700 AH_TEMPLATE(TAB3, [Undocumented.])
3703 darwin) AC_DEFINE(TAB3, OXTABS) ;;
3705 gnu | freebsd | netbsd | openbsd )
3706 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
3707 AC_DEFINE(TAB3, OXTABS)
3710 gnu-linux | gnu-kfreebsd )
3711 dnl libc-linux/sysdeps/linux/i386/ulimit.c says that due to shared
3712 dnl library, we cannot get the maximum address for brk.
3713 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3717 ]], [[]])], AC_DEFINE(ULIMIT_BREAK_VALUE, [(32*1024*1024)]), [])
3719 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3723 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
3724 [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)],
3725 [Mark a secondary stack, like the register stack on the ia64.]), [])
3729 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
3730 run_time_remap; for HPUX.])
3734 dnl Ulimit(UL_GMEMLIM) is busted...
3735 AC_DEFINE(ULIMIT_BREAK_VALUE, [0x14000000])
3740 dnl These won't be used automatically yet. We also need to know, at least,
3741 dnl that the stack is continuous.
3742 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
3743 registers relevant for conservative garbage collection in the jmp_buf.])
3745 AH_TEMPLATE(GC_MARK_STACK, [Define to GC_USE_GCPROS_AS_BEFORE if
3746 conservative garbage collection is not known to work.])
3750 aix4-2 | hpux* | unixware)
3751 dnl Conservative garbage collection has not been tested, so for now
3752 dnl play it safe and stick with the old-fashioned way of marking.
3753 AC_DEFINE(GC_MARK_STACK, [GC_USE_GCPROS_AS_BEFORE])
3756 dnl Not all the architectures are tested, but there are Debian packages
3757 dnl for SCM and/or Guile on them, so the technique must work. See also
3758 dnl comments in alloc.c concerning setjmp and gcc.
3759 dnl Fixme: it's probably safe to just use the GCC conditional below.
3760 gnu-linux | gnu-kfreebsd )
3761 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3762 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
3763 || defined __alpha__ || defined __mips__ || defined __s390__ \
3764 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
3765 || defined __ia64__ || defined __sh__
3768 # error "setjmp not known to work on this arch"
3770 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1),
3771 AC_DEFINE(GC_MARK_STACK, [GC_USE_GCPROS_AS_BEFORE]) )
3776 if test x$GCC = xyes; then
3777 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
3778 AC_DEFINE(GC_SETJMP_WORKS, 1)
3781 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
3782 freebsd | netbsd | openbsd | irix6-5 | sol2* )
3783 AC_DEFINE(GC_SETJMP_WORKS, 1)
3791 dnl setjmp and longjmp can safely replace _setjmp and _longjmp,
3792 dnl but they will run more slowly.
3793 AC_DEFINE(_setjmp, setjmp, [Some platforms redefine this.])
3794 AC_DEFINE(_longjmp, longjmp, [Some platforms redefine this.])
3795 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
3796 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
3797 dnl and this is all we need.
3798 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
3805 dnl Used in xfaces.c.
3806 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
3807 some systems, where it requires time.h.])
3811 dnl Greg A. Woods <woods@weird.com> says we must include signal.h
3812 dnl before syssignal.h is included, to work around interface conflicts
3813 dnl that are handled with CPP __RENAME() macro in signal.h.
3814 AC_DEFINE(SIGNAL_H_AHB, 1, [Define if AH_BOTTOM should include signal.h.])
3819 dnl Define symbols to identify the version of Unix this is.
3820 dnl Define all the symbols that apply correctly.
3821 AH_TEMPLATE(BSD4_2, [Define if the system is compatible with BSD 4.2.])
3822 AH_TEMPLATE(BSD_SYSTEM, [Define if the system is compatible with BSD 4.2.])
3823 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
3824 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
3825 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
3826 AH_TEMPLATE(USG5, [Define if the system is compatible with System V.])
3827 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
3833 dnl This symbol should be defined on AIX Version 3 ???????
3834 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3836 # error "_AIX not defined"
3838 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
3842 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
3846 dnl BSD4_3 and BSD4_4 are already defined in sys/param.h.
3847 AC_DEFINE(BSD4_2, [])
3848 AC_DEFINE(BSD_SYSTEM, [])
3849 dnl More specific than the above two. We cannot use __APPLE__ as this
3850 dnl may not be defined on non-OSX Darwin, and we cannot define DARWIN
3851 dnl here because Panther and lower CoreFoundation.h uses DARWIN to
3852 dnl distinguish OS X from pure Darwin.
3853 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
3857 AC_DEFINE(BSD4_2, [])
3858 dnl Hack to avoid calling AC_PREPROC_IFELSE multiple times.
3859 dnl Would not be needed with autoconf >= 2.67, where the
3860 dnl preprocessed output is accessible in "conftest.i".
3861 AC_DEFINE(BSD_SYSTEM_AHB, 1, [Define if AH_BOTTOM should change BSD_SYSTEM.])
3864 gnu | netbsd | openbsd )
3865 AC_DEFINE(BSD4_2, [])
3866 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3868 # error "BSD_SYSTEM not defined"
3870 ]], [[]])], [], AC_DEFINE(BSD_SYSTEM, 43) )
3873 gnu-linux | gnu-kfreebsd )
3875 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
3881 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
3887 AC_DEFINE(USG5_4, [])
3888 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
3894 AC_DEFINE(USG5_4, [])
3895 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
3901 AC_DEFINE(USG5_4, [])
3907 dnl Emacs supplies its own malloc, but glib (part of Gtk+) calls
3908 dnl memalign and on Cygwin, that becomes the Cygwin-supplied memalign.
3909 dnl As malloc is not the Cygwin malloc, the Cygwin memalign always
3910 dnl returns ENOSYS. A workaround is to set G_SLICE=always-malloc. */
3912 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
3913 G_SLICE environment variable to "always-malloc" at startup, if
3918 dnl See comments in sysdep.c:sys_signal.
3919 dnl SA_RESTART resets the timeout of `select' on hpux11.
3920 dnl Defining BROKEN_SA_RESTART is not the same as undef'ing SA_RESTART.
3921 AC_DEFINE(BROKEN_SA_RESTART, 1, [Define if SA_RESTART should only
3922 be used in batch mode.])
3923 dnl It works to open the pty's tty in the parent (Emacs), then
3924 dnl close and reopen it in the child.
3925 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
3926 works to open a pty's tty in the parent process, then close and
3927 reopen it in the child.])
3931 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
3932 use VSUSP instead of VSWTCH.])
3933 AC_DEFINE(SETPGRP_RELEASES_CTTY, 1, [Define if process.c:child_setup
3934 should not call setpgrp.])
3938 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
3943 # Set up the CFLAGS for real compilation, so we can substitute it.
3944 CFLAGS="$REAL_CFLAGS"
3945 CPPFLAGS="$REAL_CPPFLAGS"
3947 ## Hack to detect a buggy GCC version.
3948 if test "x$GCC" = xyes \
3949 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
3950 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
3951 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
3952 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
3955 version=$PACKAGE_VERSION
3957 ### Specify what sort of things we'll be editing into Makefile and config.h.
3958 ### Use configuration here uncanonicalized to avoid exceeding size limits.
3960 AC_SUBST(configuration)
3965 AC_SUBST(exec_prefix)
3968 AC_SUBST(sharedstatedir)
3969 AC_SUBST(libexecdir)
3974 AC_SUBST(standardlisppath)
3975 AC_SUBST(locallisppath)
3977 AC_SUBST(x_default_search_path)
3979 AC_SUBST(archlibdir)
3984 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
3985 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
3986 ## end of LIBX_BASE, but nothing ever set it.
3987 AC_SUBST(LD_SWITCH_X_SITE)
3988 AC_SUBST(C_SWITCH_X_SITE)
3989 AC_SUBST(GNUSTEP_CFLAGS)
3991 ## Used in lwlib/Makefile.in.
3992 AC_SUBST(X_TOOLKIT_TYPE)
3994 AC_SUBST(ns_appbindir)
3995 AC_SUBST(ns_appresdir)
3997 AC_SUBST(GNU_OBJC_CFLAGS)
3998 AC_SUBST(OTHER_FILES)
4000 if test -n "${term_header}"; then
4001 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4002 [Define to the header for the built-in window system.])
4005 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4006 [Define to the canonical Emacs configuration name.])
4007 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${ac_configure_args}",
4008 [Define to the options passed to configure.])
4009 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4010 define this to include extra configuration information.])
4015 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4016 AC_DEFINE(HAVE_X_WINDOWS, 1,
4017 [Define to 1 if you want to use the X window system.])
4019 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o xgselect.o"
4021 if test "$HAVE_XFT" = "yes"; then
4022 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4023 elif test "$HAVE_FREETYPE" = "yes"; then
4024 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4034 if test "${USE_X_TOOLKIT}" != "none" ; then
4036 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4037 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4038 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4039 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4040 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4044 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4045 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4049 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4050 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4051 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4055 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4056 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4059 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4062 AC_SUBST(WIDGET_OBJ)
4065 case "$USE_X_TOOLKIT" in
4066 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4067 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4068 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4070 AC_SUBST(TOOLKIT_LIBW)
4072 if test "$USE_X_TOOLKIT" = "none"; then
4073 LIBXT_OTHER="\$(LIBXSM)"
4074 OLDXMENU_TARGET="really-oldXMenu"
4076 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4077 OLDXMENU_TARGET="really-lwlib"
4079 AC_SUBST(LIBXT_OTHER)
4081 ## The X Menu stuff is present in the X10 distribution, but missing
4082 ## from X11. If we have X10, just use the installed library;
4083 ## otherwise, use our own copy.
4084 if test "${HAVE_X11}" = "yes" ; then
4085 AC_DEFINE(HAVE_X11, 1,
4086 [Define to 1 if you want to use version 11 of X windows.
4087 Otherwise, Emacs expects to use version 10.])
4089 if test "$USE_X_TOOLKIT" = "none"; then
4090 OLDXMENU="\${oldXMenudir}/libXMenu11.a"
4092 OLDXMENU="\${lwlibdir}/liblw.a"
4094 LIBXMENU="\$(OLDXMENU)"
4095 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4096 OLDXMENU_DEPS="\${OLDXMENU} ../src/\${OLDXMENU}"
4098 ## For a syntactically valid Makefile; not actually used for anything.
4099 ## See comments in src/Makefile.in.
4101 ## FIXME This case (!HAVE_X11 && HAVE_X_WINDOWS) is no longer possible(?).
4102 if test "${HAVE_X_WINDOWS}" = "yes"; then
4111 if test "$HAVE_GTK" = "yes" || test "$HAVE_MENUS" != "yes"; then
4118 AC_SUBST(OLDXMENU_TARGET)
4121 AC_SUBST(LIBX_OTHER)
4122 AC_SUBST(OLDXMENU_DEPS)
4124 if test "${HAVE_MENUS}" = "yes" ; then
4125 AC_DEFINE(HAVE_MENUS, 1,
4126 [Define to 1 if you have mouse menus.
4127 (This is automatic if you use X, but the option to specify it remains.)
4128 It is also defined with other window systems that support xmenu.c.])
4131 if test "${GNU_MALLOC}" = "yes" ; then
4132 AC_DEFINE(GNU_MALLOC, 1,
4133 [Define to 1 if you want to use the GNU memory allocator.])
4137 if test "${REL_ALLOC}" = "yes" ; then
4138 AC_DEFINE(REL_ALLOC, 1,
4139 [Define REL_ALLOC if you want to use the relocating allocator for
4142 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4144 AC_SUBST(RALLOC_OBJ)
4146 if test "$opsys" = "cygwin"; then
4147 CYGWIN_OBJ="sheap.o"
4148 ## Cygwin differs because of its unexec().
4150 POST_ALLOC_OBJ=lastfile.o
4153 PRE_ALLOC_OBJ=lastfile.o
4156 AC_SUBST(CYGWIN_OBJ)
4157 AC_SUBST(PRE_ALLOC_OBJ)
4158 AC_SUBST(POST_ALLOC_OBJ)
4160 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4161 # it temporarily reverts them to their pre-pkg-config values,
4162 # because gnulib needs to work with both src (which uses the
4163 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4164 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4165 # and it therefore needs to run in an environment where LIBS does not
4166 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4167 # for some package unrelated to lib-src.
4170 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4171 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4172 gl_ASSERT_NO_GNULIB_POSIXCHECK
4173 gl_ASSERT_NO_GNULIB_TESTS
4179 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4182 ## The -headerpad option tells ld (see man page) to leave room at the
4183 ## end of the header for adding load commands. Needed for dumping.
4184 ## 0x690 is the total size of 30 segment load commands (at 56
4185 ## each); under Cocoa 31 commands are required.
4186 if test "$HAVE_NS" = "yes"; then
4187 libs_nsgui="-framework AppKit"
4193 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4195 ## This is here because src/Makefile.in did some extra fiddling around
4196 ## with LD_SWITCH_SYSTEM. The cpp logic was:
4197 ## #ifndef LD_SWITCH_SYSTEM
4198 ## #if !defined (__GNUC__) && ((defined (BSD_SYSTEM) && !defined (COFF)))
4199 ## Since all the *bsds define LD_SWITCH_SYSTEM, this simplifies to:
4200 ## not using gcc, darwin.
4201 ## Because this was done in src/Makefile.in, the resulting part of
4202 ## LD_SWITCH_SYSTEM was not used in configure (ie, in ac_link).
4203 ## It therefore seems cleaner to put this in LD_SWITCH_SYSTEM_TEMACS,
4204 ## rather than LD_SWITCH_SYSTEM.
4205 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4206 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4209 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4210 ## find X at run-time.
4211 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4212 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4213 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4214 ## had different values in configure (in ac_link) and src/Makefile.in.
4215 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4216 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4218 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4221 if test "$NS_IMPL_GNUSTEP" = "yes"; then
4222 LD_SWITCH_SYSTEM_TEMACS="${LD_SWITCH_SYSTEM_TEMACS} -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES} -lgnustep-gui -lgnustep-base -lobjc -lpthread"
4225 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4231 ## gnu: GNU needs its own crt0.
4232 aix4-2|cygwin|darwin|gnu|hpux*|irix6-5|sol2*|unixware) ORDINARY_LINK=yes ;;
4234 ## On post 1.3 releases of NetBSD, gcc -nostdlib also clears the
4235 ## library search parth, i.e. it won't search /usr/lib for libc and
4236 ## friends. Using -nostartfiles instead avoids this problem, and
4237 ## will also work on earlier NetBSD releases.
4238 netbsd|openbsd) LD_FIRSTFLAG="-nostartfiles" ;;
4240 ## powerpc*: NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp> says
4241 ## MkLinux/LinuxPPC needs this.
4242 ## s390x-* only supports opsys = gnu-linux so it can be added here.
4244 case "$canonical" in
4245 powerpc*|s390x-*) LD_FIRSTFLAG="-nostdlib" ;;
4251 if test "x$ORDINARY_LINK" = "xyes"; then
4254 AC_DEFINE(ORDINARY_LINK, 1, [Define if the C compiler is the linker.])
4256 ## The system files defining neither ORDINARY_LINK nor LD_FIRSTFLAG are:
4257 ## freebsd, gnu-* not on powerpc*|s390x*.
4258 elif test "x$GCC" = "xyes" && test "x$LD_FIRSTFLAG" = "x"; then
4260 ## Versions of GCC >= 2.0 put their library, libgcc.a, in obscure
4261 ## places that are difficult to figure out at make time. Fortunately,
4262 ## these same versions allow you to pass arbitrary flags on to the
4263 ## linker, so there is no reason not to use it as a linker.
4265 ## Well, it is not quite perfect. The "-nostdlib" keeps GCC from
4266 ## searching for libraries in its internal directories, so we have to
4267 ## ask GCC explicitly where to find libgcc.a (LIB_GCC below).
4268 LD_FIRSTFLAG="-nostdlib"
4271 ## FIXME? What setting of EDIT_LDFLAGS should this have?
4272 test "$NS_IMPL_GNUSTEP" = "yes" && LD_FIRSTFLAG="-rdynamic"
4274 AC_SUBST(LD_FIRSTFLAG)
4277 ## FIXME? The logic here is not precisely the same as that above.
4278 ## There is no check here for a pre-defined LD_FIRSTFLAG.
4279 ## Should we only be setting LIB_GCC if LD ~ -nostdlib?
4281 if test "x$GCC" = "xyes" && test "x$ORDINARY_LINK" != "xyes"; then
4284 freebsd|netbsd|openbsd) LIB_GCC= ;;
4287 ## armin76@gentoo.org reported that the lgcc_s flag is necessary to
4288 ## build on ARM EABI under GNU/Linux. (Bug#5518)
4294 ## FIXME? s/gnu-linux.h used to define LIB_GCC as below, then
4295 ## immediately undefine it again and redefine it to empty.
4296 ## Was the C_SWITCH_X_SITE part really necessary?
4297 ## LIB_GCC=`$CC $C_SWITCH_X_SITE -print-libgcc-file-name`
4303 ## Ask GCC where to find libgcc.a.
4304 *) LIB_GCC=`$CC -print-libgcc-file-name 2> /dev/null` ;;
4309 ## Common for all window systems
4310 if test "$window_system" != "none"; then
4311 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4312 AC_DEFINE(HAVE_MOUSE, 1, [Define if you have mouse support.])
4313 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4316 AC_SUBST(WINDOW_SYSTEM_OBJ)
4318 AH_TOP([/* GNU Emacs site configuration template file.
4320 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2012
4321 Free Software Foundation, Inc.
4323 This file is part of GNU Emacs.
4325 GNU Emacs is free software: you can redistribute it and/or modify
4326 it under the terms of the GNU General Public License as published by
4327 the Free Software Foundation, either version 3 of the License, or
4328 (at your option) any later version.
4330 GNU Emacs is distributed in the hope that it will be useful,
4331 but WITHOUT ANY WARRANTY; without even the implied warranty of
4332 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4333 GNU General Public License for more details.
4335 You should have received a copy of the GNU General Public License
4336 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4339 /* No code in Emacs #includes config.h twice, but some bits of code
4340 intended to work with other packages as well (like gmalloc.c)
4341 think they can include it as many times as they like. */
4342 #ifndef EMACS_CONFIG_H
4343 #define EMACS_CONFIG_H
4346 AH_BOTTOM([#include <conf_post.h>
4348 #endif /* EMACS_CONFIG_H */
4357 #### Report on what we decided to do.
4358 #### Report GTK as a toolkit, even if it doesn't use Xt.
4359 #### It makes printing result more understandable as using GTK sets
4360 #### toolkit_scroll_bars to yes by default.
4361 if test "${HAVE_GTK}" = "yes"; then
4362 if test "${with_gtk3}" = "yes"; then
4370 Configured for \`${canonical}'.
4372 Where should the build process find the source code? ${srcdir}
4373 What compiler should emacs be built with? ${CC} ${CFLAGS}
4374 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4375 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4376 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4377 What window system should Emacs use? ${window_system}
4378 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4380 if test -n "${x_includes}"; then
4381 echo " Where do we find X Windows header files? ${x_includes}"
4383 echo " Where do we find X Windows header files? Standard dirs"
4385 if test -n "${x_libraries}"; then
4386 echo " Where do we find X Windows libraries? ${x_libraries}"
4388 echo " Where do we find X Windows libraries? Standard dirs"
4391 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4392 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4393 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4394 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4395 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4396 echo " Does Emacs use -lpng? ${HAVE_PNG}"
4397 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4398 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4400 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4401 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4402 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4403 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4404 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4405 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4406 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4408 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4409 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4410 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
4411 echo " Does Emacs use -lxft? ${HAVE_XFT}"
4413 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
4416 if test -n "${EMACSDATA}"; then
4417 echo " Environment variable EMACSDATA set to: $EMACSDATA"
4419 if test -n "${EMACSDOC}"; then
4420 echo " Environment variable EMACSDOC set to: $EMACSDOC"
4425 if test "$HAVE_NS" = "yes"; then
4427 echo "You must run \"${MAKE-make} install\" in order to test the built application.
4428 The installed application will go to nextstep/Emacs.app and can be
4429 run or moved from there."
4430 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
4431 echo "The application will be fully self-contained."
4433 echo "The lisp resources for the application will be installed under ${prefix}.
4434 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
4435 to run if these resources are not installed."
4440 if test "${opsys}" = "cygwin"; then
4442 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
4448 # Remove any trailing slashes in these variables.
4449 [test "${prefix}" != NONE &&
4450 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
4451 test "${exec_prefix}" != NONE &&
4452 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
4454 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
4455 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
4456 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
4457 dnl (else you get "no `Makefile.am' found for any configure output").
4458 dnl This will work, but you get a config.status that is not quite right
4459 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
4460 dnl That doesn't have any obvious consequences for Emacs, but on the whole
4461 dnl it seems better to just live with the duplication.
4462 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"
4464 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
4465 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
4466 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
4469 dnl test/ is not present in release tarfiles.
4470 opt_makefile=test/automated/Makefile
4472 if test -f $srcdir/${opt_makefile}.in; then
4473 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4474 dnl Again, it's best not to use a variable. Though you can add
4475 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
4476 AC_CONFIG_FILES([test/automated/Makefile])
4480 dnl admin/ may or may not be present.
4481 opt_makefile=admin/unidata/Makefile
4483 if test -f $srcdir/${opt_makefile}.in; then
4484 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4485 AC_CONFIG_FILES([admin/unidata/Makefile])
4489 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
4491 AC_SUBST(SUBDIR_MAKEFILES_IN)
4493 dnl Make the necessary directories, if they don't exist.
4494 AC_CONFIG_COMMANDS([mkdirs], [
4495 for dir in etc lisp ; do
4496 test -d ${dir} || mkdir ${dir}
4500 dnl You might wonder (I did) why epaths.h is generated by running make,
4501 dnl rather than just letting configure generate it from epaths.in.
4502 dnl One reason is that the various paths are not fully expanded (see above);
4503 dnl eg gamedir=${prefix}/var/games/emacs.
4504 dnl Secondly, the GNU Coding standards require that one should be able
4505 dnl to run `make prefix=/some/where/else' and override the values set
4506 dnl by configure. This also explains the `move-if-change' test and
4507 dnl the use of force in the `epaths-force' rule in Makefile.in.
4508 AC_CONFIG_COMMANDS([epaths], [
4509 echo creating src/epaths.h
4510 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
4511 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS"])
4513 AC_CONFIG_COMMANDS([gdbinit], [
4514 if test ! -f src/.gdbinit && test -f $srcdir/src/.gdbinit; then
4515 echo creating src/.gdbinit
4516 echo source $srcdir/src/.gdbinit > src/.gdbinit