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, 24.3.50)
26 AC_CONFIG_HEADER(src/config.h:src/config.in)
27 AC_CONFIG_SRCDIR(src/lisp.h)
28 AC_CONFIG_AUX_DIR(build-aux)
29 dnl Fairly arbitrary, older versions might work too.
30 AM_INIT_AUTOMAKE(1.11)
32 dnl Support for --program-prefix, --program-suffix and
33 dnl --program-transform-name options
36 dnl It is important that variables on the RHS not be expanded here,
37 dnl hence the single quotes. This is per the GNU coding standards, see
38 dnl (autoconf) Installation Directory Variables
39 dnl See also epaths.h below.
40 lispdir='${datadir}/emacs/${version}/lisp'
41 leimdir='${datadir}/emacs/${version}/leim'
42 standardlisppath='${lispdir}:${leimdir}'
43 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
44 '${datadir}/emacs/site-lisp'
45 lisppath='${locallisppath}:${standardlisppath}'
46 etcdir='${datadir}/emacs/${version}/etc'
47 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
48 docdir='${datadir}/emacs/${version}/etc'
49 gamedir='${localstatedir}/games/emacs'
51 dnl Special option to disable the most of other options.
53 [AS_HELP_STRING([--without-all],
54 [omit almost all features and build
55 small executable with minimal dependencies])],
56 with_features=$withval,
59 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
60 dnl Create a new --with option that defaults to being disabled.
61 dnl NAME is the base name of the option. The shell variable with_NAME
62 dnl will be set to either the user's value (if the option is
63 dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
64 dnl option is not specified). Note that the shell variable name is
65 dnl constructed as autoconf does, by replacing non-alphanumeric
66 dnl characters with "_".
67 dnl HELP-STRING is the help text for the option.
68 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
69 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
70 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
73 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
74 dnl Create a new --with option that defaults to $enable_features.
75 dnl NAME is the base name of the option. The shell variable with_NAME
76 dnl will be set either to 'no' (for a plain --without-NAME) or to
77 dnl 'yes' (if the option is not specified). Note that the shell
78 dnl variable name is constructed as autoconf does, by replacing
79 dnl non-alphanumeric characters with "_".
80 dnl HELP-STRING is the help text for the option.
81 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
82 AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
83 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=$with_features])dnl
86 OPTION_DEFAULT_ON([pop],[don't support POP mail retrieval with movemail])
87 if test "$with_pop" = yes; then
88 AC_DEFINE(MAIL_USE_POP)
90 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
92 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
93 if test "$with_kerberos" != no; then
97 [Define to support Kerberos-authenticated POP mail retrieval.])dnl
99 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
100 if test "${with_kerberos5}" != no; then
101 if test "${with_kerberos}" = no; then
105 AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
108 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
109 dnl FIXME hesiod support may not be present, so it seems like an error
110 dnl to define, or at least use, this unconditionally.
111 if test "$with_hesiod" != no; then
112 AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
115 OPTION_DEFAULT_OFF([mmdf],[support MMDF mailboxes])
116 if test "$with_mmdf" != no; then
117 AC_DEFINE(MAIL_USE_MMDF, 1, [Define to support MMDF mailboxes in movemail.])
120 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
121 if test "$with_mail_unlink" != no; then
122 AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
125 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
126 [string giving default POP mail host])],
127 AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
129 OPTION_DEFAULT_ON([sound],[don't compile with sound support])
131 dnl FIXME currently it is not the last.
132 dnl This should be the last --with option, because --with-x is
133 dnl added later on when we find the path of X, and it's best to
134 dnl keep them together visually.
135 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
136 [use an X toolkit (KIT one of: yes or gtk, gtk2, gtk3, lucid or athena, motif, no)])],
137 [ case "${withval}" in
138 y | ye | yes ) val=gtk ;;
140 l | lu | luc | luci | lucid ) val=lucid ;;
141 a | at | ath | athe | athen | athena ) val=athena ;;
142 m | mo | mot | moti | motif ) val=motif ;;
143 g | gt | gtk ) val=gtk ;;
147 AC_MSG_ERROR([`--with-x-toolkit=$withval' is invalid;
148 this option's value should be `yes', `no', `lucid', `athena', `motif', `gtk',
149 `gtk2' or `gtk3'. `yes' and `gtk' are synonyms.
150 `athena' and `lucid' are synonyms.])
156 OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit)])
157 if test "$with_wide_int" = yes; then
158 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
161 dnl _ON results in a '--without' option in the --help output, so
162 dnl the help text should refer to "don't compile", etc.
163 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
164 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
165 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
166 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
167 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
168 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
169 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
170 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
172 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
173 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
174 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
176 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
177 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
178 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
179 OPTION_DEFAULT_OFF([ns],[use NeXTstep (Cocoa or GNUstep) windowing system])
180 OPTION_DEFAULT_OFF([w32], [use native MS Windows GUI])
182 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
183 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
184 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
185 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
186 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
187 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
189 ## For the times when you want to build Emacs but don't have
190 ## a suitable makeinfo, and can live without the manuals.
191 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
192 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
194 ## Makefile.in needs the cache file name.
197 ## This is an option because I do not know if all info/man support
198 ## compressed files, nor how to test if they do so.
199 OPTION_DEFAULT_ON([compress-info],[don't compress the installed Info pages])
200 if test $with_compress_info = yes; then
207 AC_ARG_WITH([pkg-config-prog],dnl
208 [AS_HELP_STRING([--with-pkg-config-prog=PATH],
209 [path to pkg-config for finding GTK and librsvg])])
210 if test "X${with_pkg_config_prog}" != X; then
211 if test "${with_pkg_config_prog}" != yes; then
212 PKG_CONFIG="${with_pkg_config_prog}"
217 AC_ARG_WITH([crt-dir],dnl
218 [AS_HELP_STRING([--with-crt-dir=DIR],[directory containing crtn.o etc.
219 The default is /usr/lib, or /usr/lib64 on some platforms.])])
220 CRT_DIR="${with_crt_dir}"
222 AC_ARG_WITH(gameuser,dnl
223 [AS_HELP_STRING([--with-gameuser=USER],[user for shared game score files])])
224 test "X${with_gameuser}" != X && test "${with_gameuser}" != yes \
225 && gameuser="${with_gameuser}"
226 test "X$gameuser" = X && gameuser=games
228 AC_ARG_WITH([gnustep-conf],dnl
229 [AS_HELP_STRING([--with-gnustep-conf=PATH],[path to GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
230 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
231 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
232 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
233 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
235 AC_ARG_ENABLE(ns-self-contained,
236 [AS_HELP_STRING([--disable-ns-self-contained],
237 [disable self contained build under NeXTstep])],
238 EN_NS_SELF_CONTAINED=$enableval,
239 EN_NS_SELF_CONTAINED=yes)
241 AC_ARG_ENABLE(locallisppath,
242 [AS_HELP_STRING([--enable-locallisppath=PATH],
243 [directories Emacs should search for lisp files specific
245 if test "${enableval}" = "no"; then
247 elif test "${enableval}" != "yes"; then
248 locallisppath=${enableval}
251 AC_ARG_ENABLE(checking,
252 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
253 [enable expensive run-time checks. With LIST,
254 enable only specific categories of checks.
255 Categories are: all,yes,no.
256 Flags are: stringbytes, stringoverrun, stringfreelist,
257 xmallocoverrun, conslist, glyphs])],
258 [ac_checking_flags="${enableval}"],[])
259 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
260 for check in $ac_checking_flags
263 # these set all the flags to specific states
264 yes) ac_enable_checking=1 ;;
265 no) ac_enable_checking= ;
266 ac_gc_check_stringbytes= ;
267 ac_gc_check_string_overrun= ;
268 ac_gc_check_string_free_list= ;
269 ac_xmalloc_overrun= ;
270 ac_gc_check_cons_list= ;
272 all) ac_enable_checking=1 ;
273 ac_gc_check_stringbytes=1 ;
274 ac_gc_check_string_overrun=1 ;
275 ac_gc_check_string_free_list=1 ;
276 ac_xmalloc_overrun=1 ;
277 ac_gc_check_cons_list=1 ;
279 # these enable particular checks
280 stringbytes) ac_gc_check_stringbytes=1 ;;
281 stringoverrun) ac_gc_check_string_overrun=1 ;;
282 stringfreelist) ac_gc_check_string_free_list=1 ;;
283 xmallocoverrun) ac_xmalloc_overrun=1 ;;
284 conslist) ac_gc_check_cons_list=1 ;;
285 glyphs) ac_glyphs_debug=1 ;;
286 *) AC_MSG_ERROR(unknown check category $check) ;;
291 if test x$ac_enable_checking != x ; then
292 AC_DEFINE(ENABLE_CHECKING, 1,
293 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
295 if test x$ac_gc_check_stringbytes != x ; then
296 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
297 [Define this temporarily to hunt a bug. If defined, the size of
298 strings is redundantly recorded in sdata structures so that it can
299 be compared to the sizes recorded in Lisp strings.])
301 if test x$ac_gc_check_string_overrun != x ; then
302 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
303 [Define this to check for short string overrun.])
305 if test x$ac_gc_check_string_free_list != x ; then
306 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
307 [Define this to check the string free list.])
309 if test x$ac_xmalloc_overrun != x ; then
310 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
311 [Define this to check for malloc buffer overrun.])
313 if test x$ac_gc_check_cons_list != x ; then
314 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
315 [Define this to check for errors in cons list.])
317 if test x$ac_glyphs_debug != x ; then
318 AC_DEFINE(GLYPH_DEBUG, 1,
319 [Define this to enable glyphs debugging code.])
322 AC_ARG_ENABLE(check-lisp-object-type,
323 [AS_HELP_STRING([--enable-check-lisp-object-type],
324 [enable compile time checks for the Lisp_Object data type.
325 This is useful for development for catching certain types of bugs.])],
326 if test "${enableval}" != "no"; then
327 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
328 [Define this to enable compile time checks for the Lisp_Object data type.])
332 AC_ARG_ENABLE(profiling,
333 [AS_HELP_STRING([--enable-profiling],
334 [build emacs with profiling support.
335 This might not work on all platforms])],
336 [ac_enable_profiling="${enableval}"],[])
337 if test x$ac_enable_profiling != x ; then
338 PROFILING_CFLAGS="-DPROFILING=1 -pg"
342 AC_SUBST(PROFILING_CFLAGS)
344 AC_ARG_ENABLE(autodepend,
345 [AS_HELP_STRING([--enable-autodepend],
346 [automatically generate dependencies to .h-files.
347 Requires GNU Make and Gcc. Enabled if GNU Make and Gcc is
349 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
351 #### Make srcdir absolute, if it isn't already. It's important to
352 #### avoid running the path through pwd unnecessarily, since pwd can
353 #### give you automounter prefixes, which can go away. We do all this
354 #### so Emacs can find its files when run uninstalled.
355 ## Make sure CDPATH doesn't affect cd (in case PWD is relative).
360 ## We may be able to use the $PWD environment variable to make this
361 ## absolute. But sometimes PWD is inaccurate.
362 ## Note: we used to use ${PWD} at the end instead of `pwd`,
363 ## but that tested only for a well-formed and valid PWD,
364 ## it did not object when PWD was well-formed and valid but just wrong.
365 if test ".${PWD}" != "." && test ".`(cd ${PWD} ; sh -c pwd)`" = ".`pwd`" ;
369 srcdir="`(cd ${srcdir}; pwd)`"
372 * ) srcdir="`(cd ${srcdir}; pwd)`" ;;
375 ### Canonicalize the configuration name.
379 configuration=${host_alias-${build_alias-$host}}
381 dnl This used to use changequote, but, apart from `changequote is evil'
382 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
383 dnl the great gob of text. Thus it's not processed for possible expansion.
384 dnl Just make sure the brackets remain balanced.
386 dnl Since Emacs can't find matching pairs of quotes, boundaries are
387 dnl indicated by comments.
391 ### If you add support for a new configuration, add code to this
392 ### switch statement to recognize your configuration name and select
393 ### the appropriate operating system file.
395 ### You would hope that you could choose an s/*.h
396 ### file based on the operating system portion. However, it turns out
397 ### that each s/*.h file is pretty manufacturer-specific.
398 ### So we basically have to have a special case for each
399 ### configuration name.
401 ### As far as handling version numbers on operating systems is
402 ### concerned, make sure things will fail in a fixable way. If
403 ### /etc/MACHINES doesn't say anything about version numbers, be
404 ### prepared to handle anything reasonably. If version numbers
405 ### matter, be sure /etc/MACHINES says something about it.
408 case "${canonical}" in
410 ## GNU/Linux and similar ports
420 ## FreeBSD kernel + glibc based userland
435 ## Apple Darwin / Mac OS X
437 case "${canonical}" in
444 ## Use fink packages if available.
445 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
446 ## if test -d /sw/include && test -d /sw/lib; then
447 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
448 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
452 ## HP 9000 series 700 and 800, running HP/UX
456 hppa*-hp-hpux1[1-9]* )
458 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
462 rs6000-ibm-aix4.[23]* )
465 powerpc-ibm-aix4.[23]* )
468 rs6000-ibm-aix[56]* )
471 powerpc-ibm-aix[56]* )
475 ## Silicon Graphics machines
479 # Without defining _LANGUAGE_C, things get masked out in the headers
480 # so that, for instance, grepping for `free' in stdlib.h fails and
481 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
482 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
487 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
488 | x86_64-*-solaris2* | x86_64-*-sunos5*)
489 case "${canonical}" in
491 amd64-*-*|x86_64-*-*) ;;
495 case "${canonical}" in
496 *-sunos5.6* | *-solaris2.6* )
500 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
502 emacs_check_sunpro_c=yes
504 *-sunos5* | *-solaris* )
506 emacs_check_sunpro_c=yes
509 ## Watch out for a compiler that we know will not work.
510 case "${canonical}" in
511 *-solaris* | *-sunos5* )
512 if [ "x$CC" = x/usr/ucb/cc ]; then
513 ## /usr/ucb/cc doesn't work;
514 ## we should find some other compiler that does work.
522 ## Intel 386 machines where we don't care about the manufacturer.
524 case "${canonical}" in
525 *-cygwin ) opsys=cygwin ;;
526 *-darwin* ) opsys=darwin ;;
527 *-sysv4.2uw* ) opsys=unixware ;;
528 *-sysv5uw* ) opsys=unixware ;;
529 *-sysv5OpenUNIX* ) opsys=unixware ;;
530 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
539 ### If the code above didn't choose an operating system, just choose
540 ### an operating system based on the configuration name. You really
541 ### only want to use this when you have no idea what the right
542 ### operating system is; if you know what operating systems a machine
543 ### runs, it's cleaner to make it explicit in the case statement
545 if test x"${opsys}" = x; then
546 case "${canonical}" in
547 *-gnu* ) opsys=gnu ;;
557 if test $unported = yes; then
558 AC_MSG_ERROR([Emacs hasn't been ported to `${canonical}' systems.
559 Check `etc/MACHINES' for recognized configuration names.])
563 #### Choose a compiler.
565 dnl Sets GCC=yes if using gcc.
569 if test x$GCC = xyes; then
570 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
572 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
575 # Avoid gnulib's threadlib module, as we do threads our own way.
576 AC_DEFUN([gl_THREADLIB])
578 # Initialize gnulib right after choosing the compiler.
579 dnl Amongst other things, this sets AR and ARFLAGS.
582 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
583 # if -g3 works and the user does not specify CFLAGS.
584 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
585 if test "$ac_test_CFLAGS" != set; then
588 emacs_g3_CFLAGS='-g3';;
590 emacs_g3_CFLAGS='-g3 -O2';;
594 if test -n "$emacs_g3_CFLAGS"; then
595 emacs_save_CFLAGS=$CFLAGS
596 CFLAGS=$emacs_g3_CFLAGS
597 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
598 [emacs_cv_prog_cc_g3],
599 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
600 [emacs_cv_prog_cc_g3=yes],
601 [emacs_cv_prog_cc_g3=no])])
602 if test $emacs_cv_prog_cc_g3 = yes; then
603 CFLAGS=$emacs_g3_CFLAGS
605 CFLAGS=$emacs_save_CFLAGS
610 AC_ARG_ENABLE([gcc-warnings],
611 [AS_HELP_STRING([--enable-gcc-warnings],
612 [turn on lots of GCC warnings. This is intended for
613 developers, and may generate false alarms when used
614 with older or non-GNU development tools.])],
617 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
619 gl_gcc_warnings=$enableval],
623 AC_ARG_ENABLE(link-time-optimization,
624 [AS_HELP_STRING([--enable-link-time-optimization],
625 [build emacs with link-time optimization.
626 This is supported only for GCC since 4.5.0.])],
627 if test "${enableval}" != "no"; then
628 AC_MSG_CHECKING([whether link-time optimization is supported])
630 if test x$GCC = xyes; then
631 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
632 if test x$CPUS != x; then
638 CFLAGS="$CFLAGS $LTO"
639 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
640 [ac_lto_supported=yes], [ac_lto_supported=no])
643 AC_MSG_RESULT([$ac_lto_supported])
644 if test "$ac_lto_supported" = "yes"; then
645 CFLAGS="$CFLAGS $LTO"
649 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
650 # ------------------------------------------------
651 # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
652 # Otherwise, run RUN-IF-NOT-FOUND.
653 AC_DEFUN([gl_GCC_VERSION_IFELSE],
657 #if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
660 # error "your version of gcc is older than $1.$2"
667 # When compiling with GCC, prefer -isystem to -I when including system
668 # include files, to avoid generating useless diagnostics for the files.
669 if test "$gl_gcc_warnings" != yes; then
674 # This, $nw, is the list of warnings we disable.
677 case $with_x_toolkit in
678 lucid | athena | motif)
679 # Old toolkits mishandle 'const'.
680 nw="$nw -Wwrite-strings"
683 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
686 AC_SUBST([WERROR_CFLAGS])
688 nw="$nw -Waggregate-return" # anachronistic
689 nw="$nw -Wlong-long" # C90 is anachronistic
690 nw="$nw -Wc++-compat" # We don't care about C++ compilers
691 nw="$nw -Wundef" # Warns on '#if GNULIB_FOO' etc in gnulib
692 nw="$nw -Wtraditional" # Warns on #elif which we use often
693 nw="$nw -Wcast-qual" # Too many warnings for now
694 nw="$nw -Wconversion" # Too many warnings for now
695 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
696 nw="$nw -Wsign-conversion" # Too many warnings for now
697 nw="$nw -Woverlength-strings" # Not a problem these days
698 nw="$nw -Wtraditional-conversion" # Too many warnings for now
699 nw="$nw -Wunreachable-code" # so buggy that it's now silently ignored
700 nw="$nw -Wpadded" # Our structs are not padded
701 nw="$nw -Wredundant-decls" # we regularly (re)declare functions
702 nw="$nw -Wlogical-op" # any use of fwrite provokes this
703 nw="$nw -Wformat-nonliteral" # we do this a lot
704 nw="$nw -Wvla" # warnings in gettext.h
705 nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
706 nw="$nw -Wswitch-enum" # Too many warnings for now
707 nw="$nw -Wswitch-default" # Too many warnings for now
708 nw="$nw -Wfloat-equal" # warns about high-quality code
709 nw="$nw -Winline" # OK to ignore 'inline'
710 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
711 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
712 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
714 # Emacs doesn't care about shadowing; see
715 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
718 # The following lines should be removable at some point.
719 nw="$nw -Wstack-protector"
720 nw="$nw -Wstrict-overflow"
721 nw="$nw -Wsuggest-attribute=pure"
723 gl_MANYWARN_ALL_GCC([ws])
724 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
728 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
729 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
730 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
731 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
732 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
733 gl_WARN_ADD([-Wno-format-nonliteral])
735 # In spite of excluding -Wlogical-op above, it is enabled, as of
736 # gcc 4.5.0 20090517.
737 gl_WARN_ADD([-Wno-logical-op])
739 gl_WARN_ADD([-fdiagnostics-show-option])
740 gl_WARN_ADD([-funit-at-a-time])
742 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
743 AH_VERBATIM([FORTIFY_SOURCE],
744 [/* Enable compile-time and run-time bounds-checking, and some warnings,
745 without upsetting glibc 2.15+. */
746 #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
747 # define _FORTIFY_SOURCE 2
750 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
752 # We use a slightly smaller set of warning options for lib/.
753 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
755 nw="$nw -Wunused-macros"
757 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
758 AC_SUBST([GNULIB_WARN_CFLAGS])
763 dnl Some other nice autoconf tests.
764 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
767 dnl if test "x$RANLIB" = x; then
772 AC_PATH_PROG(INSTALL_INFO, install-info, :,
773 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
774 dnl Don't use GZIP, which is used by gzip for additional parameters.
775 AC_PATH_PROG(GZIP_PROG, gzip)
777 if test $opsys = gnu-linux; then
778 AC_PATH_PROG(PAXCTL, paxctl,,
779 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
780 if test "X$PAXCTL" != X; then
781 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
782 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
783 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
784 else AC_MSG_RESULT(no); PAXCTL=""; fi])
788 ## Need makeinfo >= 4.7 (?) to build the manuals.
789 AC_PATH_PROG(MAKEINFO, makeinfo, no)
790 dnl By this stage, configure has already checked for egrep and set EGREP,
791 dnl or exited with an error if no egrep was found.
792 if test "$MAKEINFO" != "no" && \
793 test x"`$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
797 ## Makeinfo is unusual. For a released Emacs, the manuals are
798 ## pre-built, and not deleted by the normal clean rules. makeinfo is
799 ## therefore in the category of "special tools" not normally required, which
800 ## configure does not have to check for (eg autoconf itself).
801 ## In a Bazaar checkout on the other hand, the manuals are not included.
802 ## So makeinfo is a requirement to build from Bazaar, and configure
803 ## should test for it as it does for any other build requirement.
804 ## We use the presence of $srcdir/info/emacs to distinguish a release,
805 ## with pre-built manuals, from a Bazaar checkout.
808 if test "$MAKEINFO" = "no"; then
810 if test "x${with_makeinfo}" = "xno"; then
812 elif test ! -e $srcdir/info/emacs; then
813 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
814 source tree does not seem to have pre-built manuals in the `info' directory.
815 Either install a suitable version of makeinfo, or re-run configure
816 with the `--without-makeinfo' option to build without the manuals.] )
819 AC_SUBST(HAVE_MAKEINFO)
821 dnl Just so that there is only a single place we need to edit.
827 dnl Add our options to ac_link now, after it is set up.
829 if test x$GCC = xyes; then
830 test "x$GCC_LINK_TEST_OPTIONS" != x && \
831 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
833 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
834 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
837 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
838 dnl If we can link with the flag, it shouldn't do any harm anyhow.
839 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
840 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
841 dnl if not built to support GNU ld.
843 late_LDFLAGS=$LDFLAGS
844 if test x$GCC = xyes; then
845 LDFLAGS="$LDFLAGS -Wl,-znocombreloc"
847 LDFLAGS="$LDFLAGS -znocombreloc"
850 AC_MSG_CHECKING([for -znocombreloc])
851 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
852 [AC_MSG_RESULT(yes)],
853 LDFLAGS=$late_LDFLAGS
857 dnl The function dump-emacs will not be defined and temacs will do
858 dnl (load "loadup") automatically unless told otherwise.
859 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
861 your-opsys-here) CANNOT_DUMP=yes ;;
864 test "$CANNOT_DUMP" = "yes" && \
865 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
867 AC_SUBST(CANNOT_DUMP)
872 # MSDOS uses unexcoff.o
873 # MSWindows uses unexw32.o
881 UNEXEC_OBJ=unexmacosx.o
884 UNEXEC_OBJ=unexhp9k800.o
887 # Use the Solaris dldump() function, called from unexsol.c, to dump
888 # emacs, instead of the generic ELF dump code found in unexelf.c.
889 # The resulting binary has a complete symbol table, and is better
890 # for debugging and other observability tools (debuggers, pstack, etc).
892 # If you encounter a problem using dldump(), please consider sending
893 # a message to the OpenSolaris tools-linking mailing list:
894 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
896 # It is likely that dldump() works with older Solaris too, but this has
897 # not been tested, so for now this change is for Solaris 10 or newer.
905 ## Let `ld' find image libs and similar things in /usr/local/lib.
906 ## The system compiler, GCC, has apparently been modified to not
907 ## look there, contrary to what a stock GCC would do.
908 ### It's not our place to do this. See bug#10313#17.
909 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
914 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
915 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
919 ### It's not our place to do this. See bug#10313#17.
920 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
925 ## Han Boetes <han@mijncomputer.nl> says this is necessary,
926 ## otherwise Emacs dumps core on elf systems.
927 LD_SWITCH_SYSTEM="-Z"
930 AC_SUBST(LD_SWITCH_SYSTEM)
932 ac_link="$ac_link $LD_SWITCH_SYSTEM"
934 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
935 ## which has not been defined yet. When this was handled with cpp,
936 ## it was expanded to null when configure sourced the s/*.h file.
937 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
938 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
939 ## (or somesuch), but because it is supposed to go at the _front_
940 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
941 ## Compare with the gnu-linux case below, which added to the end
942 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
943 ## LD_SWITCH_SYSTEM_TEMACS.
946 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
953 AC_CHECK_DECL([__ELF__])
954 if test "$ac_cv_have_decl___ELF__" = "yes"; then
955 ## With ELF, make sure that all common symbols get allocated to in the
956 ## data section. Otherwise, the dump of temacs may miss variables in
957 ## the shared library that have been initialized. For example, with
958 ## GNU libc, __malloc_initialized would normally be resolved to the
959 ## shared library's .bss section, which is fatal.
960 if test "x$GCC" = "xyes"; then
961 C_SWITCH_MACHINE="-fno-common"
963 AC_MSG_ERROR([What gives? Fix me if DEC Unix supports ELF now.])
966 UNEXEC_OBJ=unexalpha.o
970 AC_SUBST(C_SWITCH_MACHINE)
975 ## Some programs in src produce warnings saying certain subprograms
976 ## are too complex and need a MAXMEM value greater than 2000 for
977 ## additional optimization. --nils@exp-math.uni-essen.de
978 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
979 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
980 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
981 ## It is redundant in glibc2, since we define _GNU_SOURCE.
982 AC_SUBST(C_SWITCH_SYSTEM)
987 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
988 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
990 freebsd) LIBS_SYSTEM="-lutil" ;;
992 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
994 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
996 ## Motif needs -lgen.
997 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
999 AC_SUBST(LIBS_SYSTEM)
1002 ### Make sure subsequent tests use flags consistent with the build flags.
1004 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1005 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1007 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1010 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C89 or better.
1011 AC_DEFUN([AC_TYPE_SIZE_T])
1012 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1013 AC_DEFUN([AC_TYPE_UID_T])
1019 dnl Current possibilities handled by sed (aix4-2 -> aix,
1020 dnl gnu-linux -> gnu/linux, etc.):
1021 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1022 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1023 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1025 dnl NB do not use CRT_DIR unquoted here, since it might not be set yet.
1029 START_FILES='pre-crt0.o'
1032 ## Adding -lm confuses the dynamic linker, so omit it.
1034 START_FILES='pre-crt0.o'
1037 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtn.o'
1038 START_FILES='pre-crt0.o $(CRT_DIR)/crt1.o $(CRT_DIR)/crti.o'
1039 SYSTEM_TYPE=berkeley-unix
1041 gnu-linux | gnu-kfreebsd )
1042 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtn.o'
1043 START_FILES='pre-crt0.o $(CRT_DIR)/crt1.o $(CRT_DIR)/crti.o'
1045 hpux10-20 | hpux11 )
1047 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o'
1049 dnl NB this may be adjusted below.
1051 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o'
1052 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o $(CRT_DIR)/crtbegin.o'
1053 SYSTEM_TYPE=berkeley-unix
1057 SYSTEM_TYPE=usg-unix-v
1063 AC_SUBST(START_FILES)
1064 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1065 [The type of system you are compiling for; sets `system-type'.])
1067 dnl Not all platforms use crtn.o files. Check if the current one does.
1070 for file in x $LIB_STANDARD $START_FILES; do
1072 *CRT_DIR*) crt_files="$crt_files `echo $file | sed -e 's|.*/||'`" ;;
1076 if test "x$crt_files" != x; then
1078 ## If user specified a crt-dir, use that unconditionally.
1081 if test "X$CRT_DIR" = "X"; then
1083 CRT_DIR=/usr/lib # default
1085 case "$canonical" in
1086 x86_64-*-linux-gnu* | s390x-*-linux-gnu*)
1087 ## On x86-64 and s390x GNU/Linux distributions, the standard library
1088 ## can be in a variety of places. We only try /usr/lib64 and /usr/lib.
1089 ## For anything else (eg /usr/lib32), it is up the user to specify
1090 ## the location (bug#5655).
1091 ## Test for crtn.o, not just the directory, because sometimes the
1092 ## directory exists but does not have the relevant files (bug#1287).
1093 ## FIXME better to test for binary compatibility somehow.
1094 test -e /usr/lib64/crtn.o && CRT_DIR=/usr/lib64
1097 powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*) CRT_DIR=/usr/lib64 ;;
1101 hpux10-20) CRT_DIR=/lib ;;
1104 test "x${GCC}" = xyes && crt_gcc=yes
1110 for file in $crt_files; do
1112 ## If we're using gcc, try to determine it automatically by asking
1113 ## gcc. [If this doesn't work, CRT_DIR will remain at the
1114 ## system-dependent default from above.]
1115 if test $crt_gcc = yes && test ! -e $CRT_DIR/$file; then
1117 crt_file=`$CC --print-file-name=$file 2>/dev/null`
1120 CRT_DIR=`AS_DIRNAME(["$crt_file"])`
1125 dnl We expect all the files to be in a single directory, so after the
1126 dnl first there is no point asking gcc.
1129 test -e $CRT_DIR/$file || crt_missing="$crt_missing $file"
1132 test "x$crt_missing" = x || \
1133 AC_MSG_ERROR([Required file(s) not found:$crt_missing
1134 Try using the --with-crt-dir option.])
1136 fi # crt_files != ""
1142 if test -f $CRT_DIR/crti.o; then
1144 test -f $CRT_DIR/crtn.o || \
1145 AC_MSG_ERROR([Required file not found: crtn.o])
1147 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o $(CRT_DIR)/crtn.o'
1148 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o $(CRT_DIR)/crti.o $(CRT_DIR)/crtbegin.o'
1154 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1155 pre_PKG_CONFIG_LIBS=$LIBS
1157 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
1159 dnl This function definition taken from Gnome 2.0
1160 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
1161 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
1162 dnl also defines GSTUFF_PKG_ERRORS on error
1163 AC_DEFUN([PKG_CHECK_MODULES], [
1166 if test "$PKG_CONFIG" = "no" ; then
1167 ifelse([$4], , [AC_MSG_ERROR([
1168 *** 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])
1170 PKG_CONFIG_MIN_VERSION=0.9.0
1171 if $PKG_CONFIG --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
1172 AC_MSG_CHECKING(for $2)
1174 if $PKG_CONFIG --exists "$2" 2>&AS_MESSAGE_LOG_FD &&
1175 $1_CFLAGS=`$PKG_CONFIG --cflags "$2" 2>&AS_MESSAGE_LOG_FD` &&
1176 $1_LIBS=`$PKG_CONFIG --libs "$2" 2>&AS_MESSAGE_LOG_FD`; then
1183 $1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1184 $1_LIBS=`AS_ECHO(["$$1_LIBS"]) | sed -e 's,///*,/,g'`
1185 AC_MSG_RESULT([yes CFLAGS='$$1_CFLAGS' LIBS='$$1_LIBS'])
1191 ## If we have a custom action on failure, don't print errors, but
1192 ## do set a variable so people can do so. Do it in a subshell
1193 ## to capture any diagnostics in invoking pkg-config.
1194 $1_PKG_ERRORS=`($PKG_CONFIG --print-errors "$2") 2>&1`
1195 ifelse([$4], ,echo "$$1_PKG_ERRORS",)
1201 echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
1202 echo "*** See http://www.freedesktop.org/software/pkgconfig"
1206 if test $succeeded = yes; then
1207 ifelse([$3], , :, [$3])
1209 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])
1214 if test "${with_sound}" != "no"; then
1215 # Sound support for GNU/Linux and the free BSDs.
1216 AC_CHECK_HEADERS(machine/soundcard.h sys/soundcard.h soundcard.h,
1217 have_sound_header=yes)
1218 # Emulation library used on NetBSD.
1219 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1223 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1224 PKG_CHECK_MODULES(ALSA, $ALSA_MODULES, HAVE_ALSA=yes, HAVE_ALSA=no)
1225 if test $HAVE_ALSA = yes; then
1226 SAVE_CFLAGS="$CFLAGS"
1228 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1229 LIBS="$ALSA_LIBS $LIBS"
1230 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1231 emacs_alsa_normal=yes,
1232 emacs_alsa_normal=no)
1233 if test "$emacs_alsa_normal" != yes; then
1234 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1235 [[snd_lib_error_set_handler (0);]])],
1236 emacs_alsa_subdir=yes,
1237 emacs_alsa_subdir=no)
1238 if test "$emacs_alsa_subdir" != yes; then
1239 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1241 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1244 CFLAGS="$SAVE_CFLAGS"
1246 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1247 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1248 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1251 dnl Define HAVE_SOUND if we have sound support. We know it works and
1252 dnl compiles only on the specified platforms. For others, it
1253 dnl probably doesn't make sense to try.
1254 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1256 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1257 gnu-linux|freebsd|netbsd)
1258 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1263 AC_SUBST(CFLAGS_SOUND)
1266 dnl checks for header files
1267 AC_CHECK_HEADERS_ONCE(
1268 linux/version.h sys/systeminfo.h
1269 fcntl.h coff.h pty.h
1270 sys/vlimit.h sys/resource.h
1271 sys/utsname.h pwd.h utmp.h dirent.h util.h)
1273 AC_MSG_CHECKING(if personality LINUX32 can be set)
1274 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1275 emacs_cv_personality_linux32=yes,
1276 emacs_cv_personality_linux32=no)
1277 AC_MSG_RESULT($emacs_cv_personality_linux32)
1279 if test $emacs_cv_personality_linux32 = yes; then
1280 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1281 [Define to 1 if personality LINUX32 can be set.])
1284 dnl On Solaris 8 there's a compilation warning for term.h because
1285 dnl it doesn't define `bool'.
1286 AC_CHECK_HEADERS(term.h, , , -)
1288 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1290 if test $ac_cv_have_decl_sys_siglist != yes; then
1291 # For Tru64, at least:
1292 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1294 if test $ac_cv_have_decl___sys_siglist = yes; then
1295 AC_DEFINE(sys_siglist, __sys_siglist,
1296 [Define to any substitute for sys_siglist.])
1301 dnl Check for speed_t typedef.
1302 AC_CACHE_CHECK(for speed_t, emacs_cv_speed_t,
1303 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <termios.h>]], [[speed_t x = 1;]])],
1304 emacs_cv_speed_t=yes, emacs_cv_speed_t=no)])
1305 if test $emacs_cv_speed_t = yes; then
1306 AC_DEFINE(HAVE_SPEED_T, 1,
1307 [Define to 1 if `speed_t' is declared by <termios.h>.])
1310 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1311 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1312 #if HAVE_SYS_SOCKET_H
1313 #include <sys/socket.h>
1315 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1316 #if HAVE_SYS_SOCKET_H
1317 #include <sys/socket.h>
1319 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1320 #if HAVE_SYS_SOCKET_H
1321 #include <sys/socket.h>
1324 dnl checks for structure members
1325 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1326 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1327 struct ifreq.ifr_addr,
1328 struct ifreq.ifr_addr.sa_len], , ,
1329 [AC_INCLUDES_DEFAULT
1330 #if HAVE_SYS_SOCKET_H
1331 #include <sys/socket.h>
1337 dnl Check for endianness.
1338 dnl AC_C_BIGENDIAN is done by gnulib.
1340 dnl check for Make feature
1341 dnl AC_PROG_MAKE_SET is done by Automake.
1346 dnl check for GNU Make if we have GCC and autodepend is on.
1347 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1348 AC_MSG_CHECKING([whether we are using GNU Make])
1350 testval=`${MAKE-make} --version 2>/dev/null | grep 'GNU Make'`
1351 if test "x$testval" != x; then
1354 ac_enable_autodepend=no
1356 AC_MSG_RESULT([$HAVE_GNU_MAKE])
1357 if test $HAVE_GNU_MAKE = yes; then
1358 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1359 SAVE_CFLAGS="$CFLAGS"
1360 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1361 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1362 CFLAGS="$SAVE_CFLAGS"
1363 test -f deps.d || ac_enable_autodepend=no
1365 AC_MSG_RESULT([$ac_enable_autodepend])
1367 if test $ac_enable_autodepend = yes; then
1368 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1369 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1370 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1371 deps_frag=autodeps.mk
1374 deps_frag=$srcdir/src/$deps_frag
1377 AC_SUBST_FILE(deps_frag)
1380 lisp_frag=$srcdir/src/lisp.mk
1381 AC_SUBST_FILE(lisp_frag)
1384 dnl checks for operating system services
1385 AC_SYS_LONG_FILE_NAMES
1387 #### Choose a window system.
1389 ## We leave window_system equal to none if
1390 ## we end up building without one. Any new window system should
1391 ## set window_system to an appropriate value and add objects to
1392 ## window-system-specific substs.
1396 if test "$no_x" != yes; then
1400 LD_SWITCH_X_SITE_RPATH=
1401 if test "${x_libraries}" != NONE; then
1402 if test -n "${x_libraries}"; then
1403 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1404 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1406 x_default_search_path=""
1407 x_search_path=${x_libraries}
1408 if test -z "${x_search_path}"; then
1409 x_search_path=/usr/lib
1411 for x_library in `echo ${x_search_path}: | \
1412 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1414 ${x_library}/X11/%L/%T/%N%C%S:\
1415 ${x_library}/X11/%l/%T/%N%C%S:\
1416 ${x_library}/X11/%T/%N%C%S:\
1417 ${x_library}/X11/%L/%T/%N%S:\
1418 ${x_library}/X11/%l/%T/%N%S:\
1419 ${x_library}/X11/%T/%N%S"
1420 if test x"${x_default_search_path}" = x; then
1421 x_default_search_path=${x_search_path}
1423 x_default_search_path="${x_search_path}:${x_default_search_path}"
1427 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1429 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1430 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1433 if test x"${x_includes}" = x; then
1434 bitmapdir=/usr/include/X11/bitmaps
1436 # accumulate include directories that have X11 bitmap subdirectories
1438 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1439 if test -d "${bmd}/X11/bitmaps"; then
1440 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1442 if test -d "${bmd}/bitmaps"; then
1443 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1446 if test ${bmd_acc} != "dummyval"; then
1447 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1454 tmp_CPPFLAGS="$CPPFLAGS"
1455 tmp_CFLAGS="$CFLAGS"
1456 CPPFLAGS="$CPPFLAGS -x objective-c"
1457 CFLAGS="$CFLAGS -x objective-c"
1458 TEMACS_LDFLAGS2="\${LDFLAGS}"
1460 if test "${with_ns}" != no; then
1461 if test "${opsys}" = darwin; then
1463 ns_appdir=`pwd`/nextstep/Emacs.app
1464 ns_appbindir=${ns_appdir}/Contents/MacOS
1465 ns_appresdir=${ns_appdir}/Contents/Resources
1466 ns_appsrc=Cocoa/Emacs.base
1467 elif test -f $GNUSTEP_CONFIG_FILE; then
1469 ns_appdir=`pwd`/nextstep/Emacs.app
1470 ns_appbindir=${ns_appdir}
1471 ns_appresdir=${ns_appdir}/Resources
1472 ns_appsrc=GNUstep/Emacs.base
1473 dnl FIXME sourcing this several times in subshells seems inefficient.
1474 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1475 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1476 dnl I seemed to need these as well with GNUstep-startup 0.25.
1477 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1478 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1479 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1480 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1481 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1482 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1483 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1484 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1485 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1489 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1490 dnl If they had chosen to either define it or not, we could have
1491 dnl just used AC_CHECK_DECL here.
1492 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1493 emacs_cv_objc_exceptions,
1494 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1495 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1499 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1500 if test $emacs_cv_objc_exceptions = yes; then
1501 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1502 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1503 [Define if GNUstep uses ObjC exceptions.])
1504 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1508 dnl This is only used while we test the NS headers, it gets reset below.
1509 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1511 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1512 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1513 files are missing or cannot be compiled.])])
1515 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1517 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1518 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
1521 #error "OSX 10.4 or newer required"
1525 ns_osx_have_104=yes,
1527 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1529 ns_have_nsinteger=yes,
1530 ns_have_nsinteger=no)
1531 if test $ns_osx_have_104 = no; then
1532 AC_MSG_ERROR([`OSX 10.4 or newer is required']);
1534 if test $ns_have_nsinteger = yes; then
1535 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1539 AC_SUBST(TEMACS_LDFLAGS2)
1541 INSTALL_ARCH_INDEP_EXTRA=install-etc
1542 ns_self_contained=no
1545 if test "${HAVE_NS}" = yes; then
1546 if test "$with_toolkit_scroll_bars" = "no"; then
1547 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1550 window_system=nextstep
1551 # set up packaging dirs
1552 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1553 ns_self_contained=yes
1554 prefix=${ns_appresdir}
1555 exec_prefix=${ns_appbindir}
1556 dnl This one isn't really used, only archlibdir is.
1557 libexecdir="\${ns_appbindir}/libexec"
1558 archlibdir="\${ns_appbindir}/libexec"
1559 docdir="\${ns_appresdir}/etc"
1560 etcdir="\${ns_appresdir}/etc"
1561 dnl FIXME maybe set datarootdir instead.
1562 dnl That would also get applications, icons, man.
1563 infodir="\${ns_appresdir}/info"
1564 mandir="\${ns_appresdir}/man"
1565 lispdir="\${ns_appresdir}/lisp"
1566 leimdir="\${ns_appresdir}/leim"
1567 INSTALL_ARCH_INDEP_EXTRA=
1569 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o"
1571 CFLAGS="$tmp_CFLAGS"
1572 CPPFLAGS="$tmp_CPPFLAGS"
1573 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1574 AC_SUBST(ns_self_contained)
1576 AC_SUBST(NS_OBJC_OBJ)
1577 AC_SUBST(LIB_STANDARD)
1582 if test "${with_w32}" != no; then
1583 if test "${opsys}" != "cygwin"; then
1584 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin.])
1586 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1587 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1588 cannot be found.])])
1589 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1590 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1591 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1592 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1593 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1598 if test "${HAVE_W32}" = "yes"; then
1603 ## $window_system is now set to the window system we will
1611 case "${window_system}" in
1616 case "${with_x_toolkit}" in
1617 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1618 motif ) USE_X_TOOLKIT=MOTIF ;;
1620 term_header=gtkutil.h
1621 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1622 dnl USE_X_TOOLKIT is set.
1623 USE_X_TOOLKIT=none ;;
1624 gtk2 ) with_gtk2=yes
1625 term_header=gtkutil.h
1626 USE_X_TOOLKIT=none ;;
1627 gtk3 ) with_gtk3=yes
1628 term_header=gtkutil.h
1629 USE_X_TOOLKIT=none ;;
1630 no ) USE_X_TOOLKIT=none ;;
1631 dnl If user did not say whether to use a toolkit, make this decision later:
1632 dnl use the toolkit if we have gtk, or X11R5 or newer.
1633 * ) USE_X_TOOLKIT=maybe ;;
1637 term_header=nsterm.h
1640 term_header=w32term.h
1644 if test -n "${term_header}"; then
1645 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
1646 [Define to the header for the built-in window system.])
1649 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1650 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1651 if test "$HAVE_XSERVER" = true ||
1652 test -n "$DISPLAY" ||
1653 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1654 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1655 were found. You should install the relevant development files for X
1656 and for the toolkit you want, such as Gtk+, Lesstif or Motif. Also make
1657 sure you have development files for image handling, i.e.
1658 tiff, gif, jpeg, png and xpm.
1659 If you are sure you want Emacs compiled without X window support, pass
1665 ### If we're using X11, we should use the X menu package.
1668 yes ) HAVE_MENUS=yes ;;
1671 # Does the opsystem file prohibit the use of the GNU malloc?
1672 # Assume not, until told otherwise.
1676 [whether malloc is Doug Lea style],
1677 [emacs_cv_var_doug_lea_malloc],
1680 [[#include <malloc.h>
1681 static void hook (void) {}]],
1682 [[malloc_set_state (malloc_get_state ());
1683 __after_morecore_hook = hook;
1684 __malloc_initialize_hook = hook;]])],
1685 [emacs_cv_var_doug_lea_malloc=yes],
1686 [emacs_cv_var_doug_lea_malloc=no])])
1687 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1690 dnl See comments in aix4-2.h about maybe using system malloc there.
1693 ## darwin ld insists on the use of malloc routines in the System framework.
1694 darwin|sol2-10) system_malloc=yes ;;
1697 if test "${system_malloc}" = "yes"; then
1698 AC_DEFINE(SYSTEM_MALLOC, 1, [Define to use system malloc.])
1701 (The GNU allocators don't work with this system configuration.)"
1705 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1706 VMLIMIT_OBJ=vm-limit.o
1708 AC_SUBST(GMALLOC_OBJ)
1709 AC_SUBST(VMLIMIT_OBJ)
1711 if test "$doug_lea_malloc" = "yes" ; then
1712 if test "$GNU_MALLOC" = yes ; then
1714 (Using Doug Lea's new malloc from the GNU C Library.)"
1716 AC_DEFINE(DOUG_LEA_MALLOC, 1,
1717 [Define to 1 if you are using the GNU C Library.])
1719 ## Use mmap directly for allocating larger buffers.
1720 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
1721 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
1722 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
1724 gnu*) REL_ALLOC=no ;;
1728 if test x"${REL_ALLOC}" = x; then
1729 REL_ALLOC=${GNU_MALLOC}
1732 use_mmap_for_buffers=no
1734 cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
1738 if test $use_mmap_for_buffers = yes; then
1739 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
1743 LIBS="$LIBS_SYSTEM $LIBS"
1745 dnl If found, this defines HAVE_LIBDNET, which m/pmax.h checks,
1746 dnl and also adds -ldnet to LIBS, which Autoconf uses for checks.
1747 AC_CHECK_LIB(dnet, dnet_ntoa)
1748 dnl This causes -lresolv to get used in subsequent tests,
1749 dnl which causes failures on some systems such as HPUX 9.
1750 dnl AC_CHECK_LIB(resolv, gethostbyname)
1752 dnl FIXME replace main with a function we actually want from this library.
1753 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
1755 dnl Check if pthreads is available.
1757 AC_CHECK_HEADERS_ONCE(pthread.h)
1758 if test "$ac_cv_header_pthread_h"; then
1759 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
1760 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
1761 dnl testing for pthread_self if Emacs uses gmalloc.c.
1762 if test "$GMALLOC_OBJ" = gmalloc.o; then
1763 emacs_pthread_function=pthread_atfork
1765 emacs_pthread_function=pthread_self
1767 AC_CHECK_LIB(pthread, $emacs_pthread_function, HAVE_PTHREAD=yes)
1769 if test "$HAVE_PTHREAD" = yes; then
1770 case "${canonical}" in
1772 *) LIB_PTHREAD="-lpthread"
1773 LIBS="$LIB_PTHREAD $LIBS" ;;
1775 AC_DEFINE(HAVE_PTHREAD, 1, [Define to 1 if you have pthread (-lpthread).])
1777 AC_SUBST([LIB_PTHREAD])
1779 AC_CHECK_LIB(pthreads, cma_open)
1781 ## Note: when using cpp in s/aix4.2.h, this definition depended on
1782 ## HAVE_LIBPTHREADS. That was not defined earlier in configure when
1783 ## the system file was sourced. Hence the value of LIBS_SYSTEM
1784 ## added to LIBS in configure would never contain the pthreads part,
1785 ## but the value used in Makefiles might. FIXME?
1787 ## -lpthreads seems to be necessary for Xlib in X11R6, and should
1788 ## be harmless on older versions of X where it happens to exist.
1789 test "$opsys" = "aix4-2" && \
1790 test $ac_cv_lib_pthreads_cma_open = yes && \
1791 LIBS_SYSTEM="$LIBS_SYSTEM -lpthreads"
1793 dnl Check for need for bigtoc support on IBM AIX
1797 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1799 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1800 *) gdb_cv_bigtoc=-bbigtoc ;;
1803 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1804 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
1809 # Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
1810 # used for the tests that follow. We set them back to REAL_CFLAGS and
1811 # REAL_CPPFLAGS later on.
1813 REAL_CFLAGS="$CFLAGS"
1814 REAL_CPPFLAGS="$CPPFLAGS"
1816 if test "${HAVE_X11}" = "yes"; then
1817 DEFS="$C_SWITCH_X_SITE $DEFS"
1818 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
1820 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
1821 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
1823 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
1824 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
1825 # but it's more convenient here to set LD_RUN_PATH since this
1826 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
1827 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
1828 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
1832 if test "${opsys}" = "gnu-linux"; then
1833 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
1834 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1835 [[XOpenDisplay ("foo");]])],
1836 [xgnu_linux_first_failure=no],
1837 [xgnu_linux_first_failure=yes])
1838 if test "${xgnu_linux_first_failure}" = "yes"; then
1839 OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
1840 OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
1841 OLD_CPPFLAGS="$CPPFLAGS"
1843 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
1844 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
1845 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
1846 LIBS="$LIBS -b i486-linuxaout"
1847 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1848 [[XOpenDisplay ("foo");]])],
1849 [xgnu_linux_second_failure=no],
1850 [xgnu_linux_second_failure=yes])
1851 if test "${xgnu_linux_second_failure}" = "yes"; then
1852 # If we get the same failure with -b, there is no use adding -b.
1853 # So take it out. This plays safe.
1854 LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
1855 C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
1856 CPPFLAGS="$OLD_CPPFLAGS"
1867 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
1868 # header files included from there.
1869 AC_MSG_CHECKING(for Xkb)
1870 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
1871 #include <X11/XKBlib.h>]],
1872 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
1873 emacs_xkb=yes, emacs_xkb=no)
1874 AC_MSG_RESULT($emacs_xkb)
1875 if test $emacs_xkb = yes; then
1876 AC_DEFINE(HAVE_XKBGETKEYBOARD, 1, [Define to 1 if you have the XkbGetKeyboard function.])
1879 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
1880 XScreenNumberOfScreen)
1883 if test "${window_system}" = "x11"; then
1884 AC_MSG_CHECKING(X11 version 6)
1885 AC_CACHE_VAL(emacs_cv_x11_version_6,
1886 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
1887 [[#if XlibSpecificationRelease < 6
1890 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
1891 if test $emacs_cv_x11_version_6 = yes; then
1892 AC_MSG_RESULT(6 or newer)
1893 AC_DEFINE(HAVE_X11R6, 1,
1894 [Define to 1 if you have the X11R6 or newer version of Xlib.])
1895 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
1896 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
1900 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
1901 [Define if you have usable X11R6-style XIM support.])
1905 AC_MSG_RESULT(before 6)
1910 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
1912 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes"; then
1913 if test "${with_rsvg}" != "no"; then
1914 RSVG_REQUIRED=2.11.0
1915 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
1917 PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, HAVE_RSVG=yes, :)
1918 AC_SUBST(RSVG_CFLAGS)
1921 if test $HAVE_RSVG = yes; then
1922 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
1923 CFLAGS="$CFLAGS $RSVG_CFLAGS"
1924 LIBS="$RSVG_LIBS $LIBS"
1930 if test "${HAVE_X11}" = "yes"; then
1931 if test "${with_imagemagick}" != "no"; then
1932 ## 6.2.8 is the earliest version known to work, but earlier versions
1933 ## might work - let us know if you find one.
1934 ## 6.0.7 does not work. See bug#7955.
1935 IMAGEMAGICK_MODULE="Wand >= 6.2.8"
1936 PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
1937 AC_SUBST(IMAGEMAGICK_CFLAGS)
1938 AC_SUBST(IMAGEMAGICK_LIBS)
1940 if test $HAVE_IMAGEMAGICK = yes; then
1941 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
1942 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
1943 LIBS="$IMAGEMAGICK_LIBS $LIBS"
1944 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
1954 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
1957 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1959 dnl Checks for libraries.
1960 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1961 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
1962 AC_MSG_ERROR($GTK_PKG_ERRORS)
1964 if test "$pkg_check_gtk" = "yes"; then
1965 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
1966 GTK_OBJ=emacsgtkfixed.o
1967 term_header=gtkutil.h
1968 USE_GTK_TOOLKIT="GTK3"
1971 gtk3_pkg_errors="$GTK_PKG_ERRORS "
1975 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
1978 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1980 dnl Checks for libraries.
1981 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1982 if test "$pkg_check_gtk" = "no" &&
1983 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
1985 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
1987 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
1990 if test x"$pkg_check_gtk" = xyes; then
1992 AC_SUBST(GTK_CFLAGS)
1994 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
1995 CFLAGS="$CFLAGS $GTK_CFLAGS"
1996 LIBS="$GTK_LIBS $LIBS"
1997 dnl Try to compile a simple GTK program.
1999 AC_CHECK_FUNCS(gtk_main, GTK_COMPILES=yes)
2000 if test "${GTK_COMPILES}" != "yes"; then
2001 if test "$USE_X_TOOLKIT" != "maybe"; then
2002 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2006 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2007 GTK_OBJ="gtkutil.o $GTK_OBJ"
2009 if $PKG_CONFIG --atleast-version=2.10 gtk+-2.0; then
2012 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2013 closing open displays. This is no problem if you just use
2014 one display, but if you use more than one and close one of them
2024 if test "${HAVE_GTK}" = "yes"; then
2026 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2027 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2028 if test "$with_toolkit_scroll_bars" != no; then
2029 with_toolkit_scroll_bars=yes
2032 dnl Check if we have the old file selection dialog declared and
2033 dnl in the link library. In 2.x it may be in the library,
2034 dnl but not declared if deprecated featured has been selected out.
2035 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2036 HAVE_GTK_FILE_SELECTION=no
2037 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2038 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2039 #include <gtk/gtk.h>])
2040 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2041 AC_CHECK_FUNCS(gtk_file_selection_new)
2045 dnl Check for functions introduced in 2.14 and later.
2046 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2047 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2048 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2049 gtk_orientable_set_orientation \
2050 gtk_window_set_has_resize_grip)
2052 term_header=gtkutil.h
2055 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2056 dnl other platforms.
2059 if test "${with_dbus}" = "yes"; then
2060 PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
2061 if test "$HAVE_DBUS" = yes; then
2062 LIBS="$LIBS $DBUS_LIBS"
2063 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2064 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2065 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2067 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2068 dbus_type_is_valid \
2069 dbus_validate_bus_name \
2070 dbus_validate_path \
2071 dbus_validate_interface \
2072 dbus_validate_member)
2078 dnl GSettings has been tested under GNU/Linux only.
2080 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2081 PKG_CHECK_MODULES(GSETTINGS, gio-2.0 >= 2.26, HAVE_GSETTINGS=yes, HAVE_GSETTINGS=no)
2082 if test "$HAVE_GSETTINGS" = "yes"; then
2083 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2084 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2085 SETTINGS_LIBS="$GSETTINGS_LIBS"
2089 dnl GConf has been tested under GNU/Linux only.
2090 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2092 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2093 PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
2094 if test "$HAVE_GCONF" = yes; then
2095 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2096 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2097 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2098 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2102 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2103 PKG_CHECK_MODULES(GOBJECT, gobject-2.0 >= 2.0, HAVE_GOBJECT=yes, HAVE_GOBJECT=no)
2104 if test "$HAVE_GOBJECT" = "yes"; then
2105 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2106 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2108 SAVE_CFLAGS="$CFLAGS"
2110 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2111 LIBS="$SETTINGS_LIBS $LIBS"
2112 AC_CHECK_FUNCS([g_type_init])
2113 CFLAGS="$SAVE_CFLAGS"
2116 AC_SUBST(SETTINGS_CFLAGS)
2117 AC_SUBST(SETTINGS_LIBS)
2120 dnl SELinux is available for GNU/Linux only.
2123 if test "${with_selinux}" = "yes"; then
2124 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2125 if test "$HAVE_LIBSELINUX" = yes; then
2126 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2127 LIBSELINUX_LIBS=-lselinux
2130 AC_SUBST(LIBSELINUX_LIBS)
2133 HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=no
2134 if test "${with_gnutls}" = "yes" ; then
2135 PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6], HAVE_GNUTLS=yes, HAVE_GNUTLS=no)
2136 if test "${HAVE_GNUTLS}" = "yes"; then
2137 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2140 CFLAGS="$CFLAGS $LIBGNUTLS_CFLAGS"
2141 LIBS="$LIBGNUTLS_LIBS $LIBS"
2142 AC_CHECK_FUNCS(gnutls_certificate_set_verify_function, HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=yes)
2144 if test "${HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY}" = "yes"; then
2145 AC_DEFINE(HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY, 1, [Define if using GnuTLS certificate verification callbacks.])
2149 AC_SUBST(LIBGNUTLS_LIBS)
2150 AC_SUBST(LIBGNUTLS_CFLAGS)
2152 dnl Do not put whitespace before the #include statements below.
2153 dnl Older compilers (eg sunos4 cc) choke on it.
2156 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2157 if test "$with_xaw3d" != no; then
2158 AC_CACHE_VAL(emacs_cv_xaw3d,
2159 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2160 #include <X11/Intrinsic.h>
2161 #include <X11/Xaw3d/Simple.h>]],
2163 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2164 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2165 emacs_cv_xaw3d=no)])
2169 if test $emacs_cv_xaw3d = yes; then
2170 AC_MSG_CHECKING(for xaw3d)
2171 AC_MSG_RESULT([yes; using Lucid toolkit])
2175 AC_DEFINE(HAVE_XAW3D, 1,
2176 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2178 AC_MSG_CHECKING(for xaw3d)
2180 AC_MSG_CHECKING(for libXaw)
2181 AC_CACHE_VAL(emacs_cv_xaw,
2182 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2183 #include <X11/Intrinsic.h>
2184 #include <X11/Xaw/Simple.h>]],
2188 if test $emacs_cv_xaw = yes; then
2189 AC_MSG_RESULT([yes; using Lucid toolkit])
2192 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2193 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2195 AC_MSG_ERROR([No X toolkit could be found.
2196 If you are sure you want Emacs compiled without an X toolkit, pass
2198 to configure. Otherwise, install the development libraries for the toolkit
2199 that you want to use (e.g. Gtk+) and re-run configure.])
2204 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2207 if test "${USE_X_TOOLKIT}" != "none"; then
2208 AC_MSG_CHECKING(X11 toolkit version)
2209 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2210 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2211 [[#if XtSpecificationRelease < 6
2214 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2215 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2216 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2217 AC_MSG_RESULT(6 or newer)
2218 AC_DEFINE(HAVE_X11XTR6, 1,
2219 [Define to 1 if you have the X11R6 or newer version of Xt.])
2220 LIBXTR6="-lSM -lICE"
2222 ## Use libw.a along with X11R6 Xt.
2223 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2226 AC_MSG_RESULT(before 6)
2229 dnl If using toolkit, check whether libXmu.a exists.
2230 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2232 if test x$HAVE_X11XTR6 = xyes; then
2233 LIBS="-lXt -lSM -lICE $LIBS"
2237 AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
2238 test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
2239 dnl ac_cv_lib_Xmu_XmuConvertStandardSelection is also referenced below.
2243 dnl FIXME the logic here seems weird, but this is what cpp was doing.
2244 dnl Why not just test for libxmu in the normal way?
2247 ## These systems don't supply Xmu.
2249 test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
2254 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
2255 if test "${HAVE_X11}" = "yes"; then
2256 if test "${USE_X_TOOLKIT}" != "none"; then
2257 AC_CHECK_LIB(Xext, XShapeQueryExtension)
2262 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2263 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2264 if test -d /usr/include/openmotif; then
2265 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2266 emacs_cv_openmotif=yes
2267 case "$canonical" in
2268 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2269 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2272 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2275 emacs_cv_openmotif=no
2277 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2278 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2279 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2282 Motif version prior to 2.1.
2284 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2285 if test $emacs_cv_motif_version_2_1 = yes; then
2286 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2287 if test x$emacs_cv_openmotif = xyes; then
2288 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2291 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2292 # We put this in CFLAGS temporarily to precede other -I options
2293 # that might be in CFLAGS temporarily.
2294 # We put this in CPPFLAGS where it precedes the other -I options.
2295 OLD_CPPFLAGS=$CPPFLAGS
2297 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2298 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2299 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2301 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2302 if test $emacs_cv_lesstif = yes; then
2303 # Make sure this -I option remains in CPPFLAGS after it is set
2304 # back to REAL_CPPFLAGS.
2305 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2306 # have those other -I options anyway. Ultimately, having this
2307 # directory ultimately in CPPFLAGS will be enough.
2308 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2309 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2312 CPPFLAGS=$OLD_CPPFLAGS
2315 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2316 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2319 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2320 dnl using Motif or Xaw3d is available, and unless
2321 dnl --with-toolkit-scroll-bars=no was specified.
2323 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2324 [Define to 1 if we should use toolkit scroll bars.])dnl
2325 USE_TOOLKIT_SCROLL_BARS=no
2326 if test "${with_toolkit_scroll_bars}" != "no"; then
2327 if test "${USE_X_TOOLKIT}" != "none"; then
2328 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2329 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2331 USE_TOOLKIT_SCROLL_BARS=yes
2332 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2333 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2334 USE_TOOLKIT_SCROLL_BARS=yes
2336 elif test "${HAVE_GTK}" = "yes"; then
2337 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2338 USE_TOOLKIT_SCROLL_BARS=yes
2339 elif test "${HAVE_NS}" = "yes"; then
2340 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2341 USE_TOOLKIT_SCROLL_BARS=yes
2342 elif test "${HAVE_W32}" = "yes"; then
2343 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2344 USE_TOOLKIT_SCROLL_BARS=yes
2348 dnl See if XIM is available.
2349 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2350 #include <X11/Xlib.h>
2351 #include <X11/Xresource.h>]],
2352 [[XIMProc callback;]])],
2354 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2357 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2359 if test "${with_xim}" != "no"; then
2360 AC_DEFINE(USE_XIM, 1,
2361 [Define to 1 if we should use XIM, if it is available.])
2365 if test "${HAVE_XIM}" != "no"; then
2367 if test "$GCC" = yes; then
2368 CFLAGS="$CFLAGS --pedantic-errors"
2370 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2371 #include <X11/Xlib.h>
2372 #include <X11/Xresource.h>]],
2378 XPointer *client_data;
2380 /* If we're not using GCC, it's probably not XFree86, and this is
2381 probably right, but we can't use something like --pedantic-errors. */
2382 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2383 char*, XIMProc, XPointer*);
2385 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2387 [emacs_cv_arg6_star=yes])
2388 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2389 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2390 either XPointer or XPointer*.])dnl
2391 if test "$emacs_cv_arg6_star" = yes; then
2392 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2394 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2399 ### Start of font-backend (under any platform) section.
2400 # (nothing here yet -- this is a placeholder)
2401 ### End of font-backend (under any platform) section.
2403 ### Start of font-backend (under X11) section.
2404 if test "${HAVE_X11}" = "yes"; then
2405 PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
2407 ## Use -lXft if available, unless `--with-xft=no'.
2409 if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2412 if test "x${with_xft}" != "xno"; then
2414 PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
2415 ## Because xftfont.c uses XRenderQueryExtension, we also
2416 ## need to link to -lXrender.
2418 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2419 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2420 OLD_CPPFLAGS="$CPPFLAGS"
2421 OLD_CFLAGS="$CFLAGS"
2423 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2424 CFLAGS="$CFLAGS $XFT_CFLAGS"
2425 XFT_LIBS="-lXrender $XFT_LIBS"
2426 LIBS="$XFT_LIBS $LIBS"
2427 AC_CHECK_HEADER(X11/Xft/Xft.h,
2428 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS))
2430 if test "${HAVE_XFT}" = "yes"; then
2431 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2433 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2435 CPPFLAGS="$OLD_CPPFLAGS"
2436 CFLAGS="$OLD_CFLAGS"
2438 fi # "${HAVE_XFT}" = "yes"
2439 fi # "$HAVE_XFT" != no
2440 fi # "x${with_xft}" != "xno"
2442 ## We used to allow building with FreeType and without Xft.
2443 ## However, the ftx font backend driver is not in good shape.
2444 if test "$HAVE_XFT" != "yes"; then
2445 dnl For the "Does Emacs use" message at the end.
2449 dnl Strict linkers fail with
2450 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2451 dnl if -lfreetype is not specified.
2452 dnl The following is needed to set FREETYPE_LIBS.
2453 PKG_CHECK_MODULES(FREETYPE, freetype2, HAVE_FREETYPE=yes,
2456 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2460 if test "${HAVE_FREETYPE}" = "yes"; then
2461 AC_DEFINE(HAVE_FREETYPE, 1,
2462 [Define to 1 if using the freetype and fontconfig libraries.])
2463 if test "${with_libotf}" != "no"; then
2464 PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
2466 if test "$HAVE_LIBOTF" = "yes"; then
2467 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2468 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2469 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2470 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2471 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2472 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2473 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2477 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2478 dnl Does the new font backend require it, or can it work without it?
2482 if test "${HAVE_LIBOTF}" = yes; then
2483 if test "${with_m17n_flt}" != "no"; then
2484 PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
2485 if test "$HAVE_M17N_FLT" = "yes"; then
2486 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2497 ### End of font-backend (under X11) section.
2499 AC_SUBST(FREETYPE_CFLAGS)
2500 AC_SUBST(FREETYPE_LIBS)
2501 AC_SUBST(FONTCONFIG_CFLAGS)
2502 AC_SUBST(FONTCONFIG_LIBS)
2503 AC_SUBST(LIBOTF_CFLAGS)
2504 AC_SUBST(LIBOTF_LIBS)
2505 AC_SUBST(M17N_FLT_CFLAGS)
2506 AC_SUBST(M17N_FLT_LIBS)
2508 ### Use -lXpm if available, unless `--with-xpm=no'.
2512 if test "${HAVE_W32}" = "yes"; then
2513 if test "${with_xpm}" != "no"; then
2514 SAVE_CPPFLAGS="$CPPFLAGS"
2515 SAVE_LDFLAGS="$LDFLAGS"
2516 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
2517 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
2518 AC_CHECK_HEADER(X11/xpm.h,
2519 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
2520 if test "${HAVE_XPM}" = "yes"; then
2521 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2522 AC_EGREP_CPP(no_return_alloc_pixels,
2523 [#include "X11/xpm.h"
2524 #ifndef XpmReturnAllocPixels
2525 no_return_alloc_pixels
2527 ], HAVE_XPM=no, HAVE_XPM=yes)
2529 if test "${HAVE_XPM}" = "yes"; then
2530 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
2534 CPPFLAGS="$SAVE_CPPFLAGS"
2535 LDFLAGS="$SAVE_LDFLAGS"
2540 if test "${HAVE_XPM}" = "yes"; then
2541 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2546 if test "${HAVE_X11}" = "yes"; then
2547 if test "${with_xpm}" != "no"; then
2548 AC_CHECK_HEADER(X11/xpm.h,
2549 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2550 if test "${HAVE_XPM}" = "yes"; then
2551 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2552 AC_EGREP_CPP(no_return_alloc_pixels,
2553 [#include "X11/xpm.h"
2554 #ifndef XpmReturnAllocPixels
2555 no_return_alloc_pixels
2557 ], HAVE_XPM=no, HAVE_XPM=yes)
2559 if test "${HAVE_XPM}" = "yes"; then
2567 if test "${HAVE_XPM}" = "yes"; then
2568 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2575 ### Use -ljpeg if available, unless `--with-jpeg=no'.
2578 if test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2579 if test "${with_jpeg}" != "no"; then
2580 dnl Checking for jpeglib.h can lose because of a redefinition of
2582 AC_CHECK_HEADER(jerror.h,
2583 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
2586 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2587 if test "${HAVE_JPEG}" = "yes"; then
2588 AC_DEFINE(HAVE_JPEG)
2589 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2590 [#include <jpeglib.h>
2591 version=JPEG_LIB_VERSION
2593 [AC_DEFINE(HAVE_JPEG)],
2594 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2597 if test "${HAVE_JPEG}" = "yes"; then
2603 ### Use -lpng if available, unless `--with-png=no'.
2606 if test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2607 if test "${with_png}" != "no"; then
2608 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
2609 # in /usr/include/libpng.
2610 AC_CHECK_HEADERS(png.h libpng/png.h, break)
2611 if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
2612 AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
2616 if test "${HAVE_PNG}" = "yes"; then
2617 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2618 LIBPNG="-lpng -lz -lm"
2620 AC_CHECK_DECL(png_longjmp,
2622 [AC_DEFINE(PNG_DEPSTRUCT, [],
2623 [Define to empty to suppress deprecation warnings when building
2624 with --enable-gcc-warnings and with libpng versions before 1.5,
2625 which lack png_longjmp.])],
2626 [[#ifdef HAVE_LIBPNG_PNG_H
2627 # include <libpng/png.h>
2636 ### Use -ltiff if available, unless `--with-tiff=no'.
2639 if test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2640 if test "${with_tiff}" != "no"; then
2641 AC_CHECK_HEADER(tiffio.h,
2643 # At least one tiff package requires the jpeg library.
2644 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
2645 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
2648 if test "${HAVE_TIFF}" = "yes"; then
2649 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
2650 dnl FIXME -lz -lm, as per libpng?
2656 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
2659 if test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
2660 || test "${HAVE_W32}" = "yes"; then
2661 AC_CHECK_HEADER(gif_lib.h,
2662 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
2663 # Earlier versions can crash Emacs.
2664 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])
2666 if test "$HAVE_GIF" = yes; then
2668 elif test "$HAVE_GIF" = maybe; then
2669 # If gif_lib.h but no libgif, try libungif.
2670 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
2671 test "$HAVE_GIF" = yes && LIBGIF=-lungif
2674 if test "${HAVE_GIF}" = "yes"; then
2675 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
2680 dnl Check for required libraries.
2681 if test "${HAVE_X11}" = "yes"; then
2684 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
2685 MISSING="libXpm" && WITH_NO="--with-xpm=no"
2686 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
2687 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
2688 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
2689 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
2690 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
2691 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
2692 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
2693 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
2695 if test "X${MISSING}" != X; then
2696 AC_MSG_ERROR([The following required libraries were not found:
2698 Maybe some development libraries/packages are missing?
2699 If you don't want to link with them give
2701 as options to configure])
2705 ### Use -lgpm if available, unless `--with-gpm=no'.
2708 if test "${with_gpm}" != "no"; then
2709 AC_CHECK_HEADER(gpm.h,
2710 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
2712 if test "${HAVE_GPM}" = "yes"; then
2713 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
2719 dnl Check for malloc/malloc.h on darwin
2720 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
2723 ### Use NeXTstep API to implement GUI.
2724 if test "${HAVE_NS}" = "yes"; then
2725 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
2726 if test "${NS_IMPL_COCOA}" = "yes"; then
2727 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
2729 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
2730 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
2731 # See also .m.o rule in Makefile.in */
2732 # FIXME: are all these flags really needed? Document here why. */
2733 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
2734 ## Extra CFLAGS applied to src/*.m files.
2735 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"
2737 # We also have mouse menus.
2742 if test "${HAVE_W32}" = "yes"; then
2746 ### Use session management (-lSM -lICE) if available
2749 if test "${HAVE_X11}" = "yes"; then
2750 AC_CHECK_HEADER(X11/SM/SMlib.h,
2751 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
2753 if test "${HAVE_X_SM}" = "yes"; then
2754 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
2758 *) LIBS="$LIBXSM $LIBS" ;;
2764 ### Use libxml (-lxml2) if available
2766 if test "${with_xml2}" != "no"; then
2767 ### I'm not sure what the version number should be, so I just guessed.
2768 PKG_CHECK_MODULES(LIBXML2, libxml-2.0 > 2.6.17, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2769 if test "${HAVE_LIBXML2}" = "yes"; then
2770 LIBS="$LIBXML2_LIBS $LIBS"
2771 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2772 if test "${HAVE_LIBXML2}" = "yes"; then
2773 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
2780 AC_SUBST(LIBXML2_LIBS)
2781 AC_SUBST(LIBXML2_CFLAGS)
2783 # If netdb.h doesn't declare h_errno, we must declare it by hand.
2784 AC_CACHE_CHECK(whether netdb declares h_errno,
2785 emacs_cv_netdb_declares_h_errno,
2786 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
2787 [[return h_errno;]])],
2788 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
2789 if test $emacs_cv_netdb_declares_h_errno = yes; then
2790 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
2793 # sqrt and other floating-point functions such as fmod and frexp
2794 # are found in -lm on most systems.
2795 AC_CHECK_LIB(m, sqrt)
2797 # Check for mail-locking functions in a "mail" library. Probably this should
2798 # have the same check as for liblockfile below.
2799 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
2800 if test $have_mail = yes; then
2802 LIBS="$LIBS_MAIL $LIBS"
2803 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
2807 dnl Debian, at least:
2808 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
2809 if test $have_lockfile = yes; then
2810 LIBS_MAIL=-llockfile
2811 LIBS="$LIBS_MAIL $LIBS"
2812 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
2814 # If we have the shared liblockfile, assume we must use it for mail
2815 # locking (e.g. Debian). If we couldn't link against liblockfile
2816 # (no liblockfile.a installed), ensure that we don't need to.
2817 dnl This works for files generally, not just executables.
2818 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
2819 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
2820 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
2821 if test $ac_cv_prog_liblockfile = yes; then
2822 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
2823 This probably means that movemail could lose mail.
2824 There may be a `development' package to install containing liblockfile.])
2827 AC_CHECK_HEADERS_ONCE(maillock.h)
2830 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
2831 ## interlock access to the mail spool. The alternative is a lock file named
2832 ## /usr/spool/mail/$USER.lock.
2835 aix4-2) mail_lock="lockf" ;;
2837 gnu|freebsd|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
2839 ## On GNU/Linux systems, both methods are used by various mail programs.
2840 ## I assume most people are using newer mailers that have heard of flock.
2841 ## Change this if you need to.
2842 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
2843 ## configure gets the right answers, and that means *NOT* using flock.
2844 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
2845 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
2846 ## Debian maintainer hasn't provided a clean fix for Emacs.
2847 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
2848 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
2849 ## correct logic. -- fx
2850 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
2851 ## liblockfile is a Free Software replacement for libmail, used on
2852 ## Debian systems and elsewhere. -rfr.
2855 if test $have_mail = yes || test $have_lockfile = yes; then
2856 test $ac_cv_header_maillock_h = yes && mail_lock=no
2862 case "$mail_lock" in
2863 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
2865 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
2867 *) BLESSMAIL_TARGET="need-blessmail" ;;
2869 AC_SUBST(BLESSMAIL_TARGET)
2872 AC_CHECK_FUNCS(gethostname \
2873 closedir getrusage get_current_dir_name \
2875 fpathconf select euidaccess getpagesize setlocale \
2876 utimes getrlimit setrlimit getcwd shutdown getaddrinfo \
2877 strsignal setitimer \
2878 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
2879 gai_strerror mkstemp getline getdelim fsync sync \
2880 difftime posix_memalign \
2881 getpwent endpwent getgrent endgrent \
2883 cfmakeraw cfsetspeed copysign __executable_start)
2885 dnl getwd appears to be buggy on SVR4.2, so we don't use it.
2886 if test $opsys = unixware; then
2887 dnl In case some other test ends up checking for getwd.
2888 AC_DEFINE(BROKEN_GETWD, 1, [Define if getwd should not be used.])
2890 AC_CHECK_FUNCS(getwd)
2893 ## Eric Backus <ericb@lsid.hp.com> says, HP-UX 9.x on HP 700 machines
2894 ## has a broken `rint' in some library versions including math library
2895 ## version number A.09.05.
2896 ## You can fix the math library by installing patch number PHSS_4630.
2897 ## But we can fix it more reliably for Emacs by just not using rint.
2898 ## We also skip HAVE_RANDOM - see comments in src/conf_post.h.
2901 *) AC_CHECK_FUNCS(random rint) ;;
2904 dnl Cannot use AC_CHECK_FUNCS
2905 AC_CACHE_CHECK([for __builtin_unwind_init],
2906 emacs_cv_func___builtin_unwind_init,
2907 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
2908 emacs_cv_func___builtin_unwind_init=yes,
2909 emacs_cv_func___builtin_unwind_init=no)])
2910 if test $emacs_cv_func___builtin_unwind_init = yes; then
2911 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
2912 [Define to 1 if you have the `__builtin_unwind_init' function.])
2915 AC_CHECK_HEADERS_ONCE(sys/un.h)
2920 AC_CHECK_FUNCS(grantpt)
2922 # PTY-related GNU extensions.
2923 AC_CHECK_FUNCS(getpt posix_openpt)
2925 # Check this now, so that we will NOT find the above functions in ncurses.
2926 # That is because we have not set up to link ncurses in lib-src.
2927 # It's better to believe a function is not available
2928 # than to expect to find it in ncurses.
2929 # Also we need tputs and friends to be able to build at all.
2930 AC_MSG_CHECKING([for library containing tputs])
2931 # Run a test program that contains a call to tputs, a call that is
2932 # never executed. This tests whether a pre-'main' dynamic linker
2933 # works with the library. It's too much trouble to actually call
2934 # tputs in the test program, due to portability hassles. When
2935 # cross-compiling, assume the test program will run if it links.
2936 AC_DEFUN([tputs_link_source], [
2938 [[extern void tputs (const char *, int, int (*)(int));
2939 int main (int argc, char **argv)
2942 tputs (argv[0], 0, 0);
2946 # Maybe curses should be tried earlier?
2947 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
2948 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
2950 if test -z "$tputs_library"; then
2954 LIBS_TERMCAP=-l$tputs_library
2956 LIBS="$LIBS_TERMCAP $LIBS"
2958 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
2959 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
2961 if test "X$msg" != Xno; then
2965 AC_MSG_RESULT([$msg])
2966 if test "X$msg" = Xno; then
2967 AC_MSG_ERROR([The required function `tputs' was not found in any library.
2968 The following libraries were tried (in order):
2969 libtinfo, libncurses, libterminfo, libtermcap, libcurses
2970 Please try installing whichever of these libraries is most appropriate
2971 for your system, together with its header files.
2972 For example, a libncurses-dev(el) or similar package.])
2975 ## Use termcap instead of terminfo?
2976 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
2978 ## FIXME? In the cases below where we unconditionally set
2979 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
2980 ## if that was found above to have tputs.
2981 ## Should we use the gnu* logic everywhere?
2983 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
2984 ## The ncurses library has been moved out of the System framework in
2985 ## Mac OS X 10.2. So if configure detects it, set the command-line
2986 ## option to use it.
2987 darwin) LIBS_TERMCAP="-lncurses" ;;
2989 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
2992 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
2993 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
2994 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
2995 [[#if __FreeBSD_version < 400000
2998 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3000 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3002 if test $emacs_cv_freebsd_terminfo = yes; then
3003 LIBS_TERMCAP="-lncurses"
3006 LIBS_TERMCAP="-ltermcap"
3011 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3013 LIBS_TERMCAP="-ltermcap"
3017 openbsd) LIBS_TERMCAP="-lncurses" ;;
3019 ## hpux: Make sure we get select from libc rather than from libcurses
3020 ## because libcurses on HPUX 10.10 has a broken version of select.
3021 ## We used to use -lc -lcurses, but this may be cleaner.
3022 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3023 # set that way, now it uses the default). Isn't this a contradiction?
3024 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3028 TERMCAP_OBJ=tparam.o
3029 if test $TERMINFO = yes; then
3030 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3031 TERMCAP_OBJ=terminfo.o
3033 AC_SUBST(LIBS_TERMCAP)
3034 AC_SUBST(TERMCAP_OBJ)
3037 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3038 # On Darwin, res_init appears not to be useful: see bug#562 and
3039 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3042 if test $opsys != darwin; then
3044 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3045 #include <arpa/nameser.h>
3046 #include <resolv.h>]],
3047 [[return res_init();]])],
3048 have_res_init=yes, have_res_init=no)
3049 if test "$have_res_init" = no; then
3051 LIBS="$LIBS -lresolv"
3052 AC_MSG_CHECKING(for res_init with -lresolv)
3053 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3054 #include <arpa/nameser.h>
3055 #include <resolv.h>]],
3056 [[return res_init();]])],
3057 have_res_init=yes, have_res_init=no)
3058 AC_MSG_RESULT($have_res_init)
3059 if test "$have_res_init" = yes ; then
3065 if test "$have_res_init" = yes; then
3066 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3070 # Do we need the Hesiod library to provide the support routines?
3071 dnl FIXME? Should we be skipping this on Darwin too?
3073 if test "$with_hesiod" != no ; then
3074 # Don't set $LIBS here -- see comments above. FIXME which comments?
3075 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3076 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3077 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3078 if test "$resolv" = yes ; then
3083 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3084 hesiod=yes, :, $RESOLVLIB)])
3086 if test x"$hesiod" = xyes; then
3087 AC_DEFINE(HAVE_LIBHESIOD, 1,
3088 [Define to 1 if you have the hesiod library (-lhesiod).])
3094 # Do we need libresolv (due to res_init or Hesiod)?
3095 if test "$resolv" = yes && test $opsys != darwin; then
3096 AC_DEFINE(HAVE_LIBRESOLV, 1,
3097 [Define to 1 if you have the resolv library (-lresolv).])
3104 # These tell us which Kerberos-related libraries to use.
3111 if test "${with_kerberos}" != no; then
3112 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3113 if test $have_com_err = yes; then
3114 COM_ERRLIB=-lcom_err
3115 LIBS="$COM_ERRLIB $LIBS"
3116 AC_DEFINE(HAVE_LIBCOM_ERR, 1, [Define to 1 if you have the `com_err' library (-lcom_err).])
3118 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3119 if test $have_crypto = yes; then
3121 LIBS="$CRYPTOLIB $LIBS"
3122 AC_DEFINE(HAVE_LIBCRYPTO, 1, [Define to 1 if you have the `crypto' library (-lcrypto).])
3124 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3125 if test $have_k5crypto = yes; then
3126 CRYPTOLIB=-lk5crypto
3127 LIBS="$CRYPTOLIB $LIBS"
3128 AC_DEFINE(HAVE_LIBK5CRYPTO, 1, [Define to 1 if you have the `k5crypto' library (-lk5crypto).])
3130 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3131 if test $have_krb5=yes; then
3133 LIBS="$KRB5LIB $LIBS"
3134 AC_DEFINE(HAVE_LIBKRB5, 1, [Define to 1 if you have the `krb5' library (-lkrb5).])
3136 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3137 if test "${with_kerberos5}" = no; then
3138 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3139 if test $have_des425 = yes; then
3141 LIBS="$DESLIB $LIBS"
3142 AC_DEFINE(HAVE_LIBDES425, 1, [Define to 1 if you have the `des425' library (-ldes425).])
3144 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3145 if test $have_des = yes; then
3147 LIBS="$DESLIB $LIBS"
3148 AC_DEFINE(HAVE_LIBDES, 1, [Define to 1 if you have the `des' library (-ldes).])
3151 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3152 if test $have_krb4 = yes; then
3154 LIBS="$KRB4LIB $LIBS"
3155 AC_DEFINE(HAVE_LIBKRB4, 1, [Define to 1 if you have the `krb4' library (-lkrb4).])
3157 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3158 if test $have_krb = yes; then
3160 LIBS="$KRB4LIB $LIBS"
3161 AC_DEFINE(HAVE_LIBKRB, 1, [Define to 1 if you have the `krb' library (-lkrb).])
3166 if test "${with_kerberos5}" != no; then
3167 AC_CHECK_HEADERS(krb5.h,
3168 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3169 [#include <krb5.h>])])
3171 AC_CHECK_HEADERS(des.h,,
3172 [AC_CHECK_HEADERS(kerberosIV/des.h,,
3173 [AC_CHECK_HEADERS(kerberos/des.h)])])
3174 AC_CHECK_HEADERS(krb.h,,
3175 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3176 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3178 AC_CHECK_HEADERS(com_err.h)
3181 AC_SUBST(COM_ERRLIB)
3187 AC_CHECK_FUNCS_ONCE(tzset)
3188 AC_MSG_CHECKING(whether localtime caches TZ)
3189 AC_CACHE_VAL(emacs_cv_localtime_cache,
3190 [if test x$ac_cv_func_tzset = xyes; then
3191 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3192 char TZ_GMT0[] = "TZ=GMT0";
3193 char TZ_PST8[] = "TZ=PST8";
3196 time_t now = time ((time_t *) 0);
3197 int hour_GMT0, hour_unset;
3198 if (putenv (TZ_GMT0) != 0)
3200 hour_GMT0 = localtime (&now)->tm_hour;
3202 hour_unset = localtime (&now)->tm_hour;
3203 if (putenv (TZ_PST8) != 0)
3205 if (localtime (&now)->tm_hour == hour_GMT0)
3208 if (localtime (&now)->tm_hour != hour_unset)
3211 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3212 [# If we have tzset, assume the worst when cross-compiling.
3213 emacs_cv_localtime_cache=yes])
3215 # If we lack tzset, report that localtime does not cache TZ,
3216 # since we can't invalidate the cache if we don't have tzset.
3217 emacs_cv_localtime_cache=no
3219 AC_MSG_RESULT($emacs_cv_localtime_cache)
3220 if test $emacs_cv_localtime_cache = yes; then
3221 AC_DEFINE(LOCALTIME_CACHE, 1,
3222 [Define to 1 if localtime caches TZ.])
3226 AC_CHECK_FUNC(socket, , ok_so_far=no)
3227 if test $ok_so_far = yes; then
3228 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3230 if test $ok_so_far = yes; then
3231 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3233 if test $ok_so_far = yes; then
3234 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3235 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3236 [Define to 1 if you have inet sockets.])
3239 if test -f /usr/lpp/X11/bin/smt.exp; then
3240 AC_DEFINE(HAVE_AIX_SMT_EXP, 1,
3241 [Define to 1 if the file /usr/lpp/X11/bin/smt.exp exists.])
3244 AC_MSG_CHECKING(whether system supports dynamic ptys)
3245 if test -d /dev/pts && ls -d /dev/ptmx > /dev/null 2>&1 ; then
3247 AC_DEFINE(HAVE_DEV_PTMX, 1, [Define to 1 if dynamic ptys are supported.])
3252 dnl Check for a Solaris 2.4 vfork bug that Autoconf misses (through 2.69).
3253 dnl This can be removed once we assume Autoconf 2.70.
3255 *-solaris2.4 | *-solaris2.4.*)
3256 dnl Disable the Autoconf-generated vfork test.
3257 : ${ac_cv_func_vfork_works=no};;
3262 AC_CHECK_FUNCS(snprintf)
3264 dnl Adapted from Haible's version.
3265 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3266 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3267 [[char* cs = nl_langinfo(CODESET);]])],
3268 emacs_cv_langinfo_codeset=yes,
3269 emacs_cv_langinfo_codeset=no)
3271 if test $emacs_cv_langinfo_codeset = yes; then
3272 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3273 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3278 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3279 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3280 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3281 if test "$emacs_cv_c_restrict_arr" = yes; then
3282 AC_DEFINE(__restrict_arr, __restrict,
3283 [Define to compiler's equivalent of C99 restrict keyword in array
3284 declarations. Define as empty for no equivalent.])
3287 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3288 dnl how the tty code is related to POSIX and/or other versions of termios.
3289 dnl The following looks like a useful start.
3291 dnl AC_SYS_POSIX_TERMIOS
3292 dnl if test $ac_cv_sys_posix_termios = yes; then
3293 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3294 dnl and macros for terminal control.])
3295 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3298 dnl Turned on June 1996 supposing nobody will mind it.
3299 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3300 in the full name stands for the login id.])
3302 dnl Every platform that uses configure (ie every non-MS platform)
3303 dnl supports this. There is a create-lockfiles option you can
3304 dnl customize if you do not want the lock files to be written.
3305 dnl So it is not clear that this #define still needs to exist.
3306 AC_DEFINE(CLASH_DETECTION, 1, [Define if you want lock files to be written,
3307 so that Emacs can tell instantly when you try to modify a file that
3308 someone else has modified in his/her Emacs.])
3310 dnl Everybody supports this, except MS.
3311 dnl Seems like the kind of thing we should be testing for, though.
3312 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3313 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3315 dnl Everybody supports this, except MS-DOS.
3316 dnl Seems like the kind of thing we should be testing for, though.
3317 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3318 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3319 4.2-compatible sockets.])
3321 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3323 AC_DEFINE(NULL_DEVICE, ["/dev/null"], [Name of the file to open to get
3324 a null file, or a data sink.])
3326 AC_DEFINE(SEPCHAR, [':'], [Character that separates PATH elements.])
3328 dnl Everybody supports this, except MS-DOS.
3329 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3331 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3334 AC_DEFINE(DIRECTORY_SEP, ['/'],
3335 [Character that separates directories in a file name.])
3337 dnl Only used on MS platforms.
3338 AH_TEMPLATE(DEVICE_SEP, [Character that separates a device in a file name.])
3340 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
3341 [Returns true if character is a device separator.])
3343 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
3344 [Returns true if character is a directory separator.])
3346 dnl On MS, this also accepts IS_DEVICE_SEP.
3347 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
3348 [Returns true if character is any form of separator.])
3351 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
3355 dnl Unfortunately without libXmu we cannot support EditRes.
3356 if test x$ac_cv_lib_Xmu_XmuConvertStandardSelection != xyes; then
3357 AC_DEFINE(NO_EDITRES, 1)
3362 dnl Assar Westerlund <assar@sics.se> says this is necessary for
3363 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
3364 AC_DEFINE(NO_EDITRES, 1)
3370 irix6-5 | sol2* | unixware )
3371 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
3372 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
3373 dnl need the constant to dimension an array. So wire in the appropriate
3375 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
3379 emacs_broken_SIGIO=no
3382 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
3383 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
3384 hpux* | irix6-5 | openbsd | sol2* | unixware )
3385 emacs_broken_SIGIO=yes
3389 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
3390 dnl the way this system works, libc functions that return malloced
3391 dnl memory use the libc malloc implementation. Calling xfree or
3392 dnl xrealloc on the results of such functions results in a crash.
3394 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
3395 dnl but that does not currently work on this system.
3397 dnl It is possible to completely override the malloc implementation on
3398 dnl AIX, but that involves putting the malloc functions in a shared
3399 dnl library and setting the MALLOCTYPE environment variable to point to
3400 dnl that shared library.
3402 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
3403 dnl to avoid a crash just use the Emacs implementation for that function.
3405 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
3406 dnl of this file, so that we do not check for get_current_dir_name
3407 dnl on AIX. But that might be fragile if something else ends
3408 dnl up testing for get_current_dir_name as a dependency.
3409 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
3410 get_current_dir_name should not be used.])
3414 dnl Circumvent a bug in FreeBSD. In the following sequence of
3415 dnl writes/reads on a PTY, read(2) returns bogus data:
3417 dnl write(2) 1022 bytes
3418 dnl write(2) 954 bytes, get EAGAIN
3419 dnl read(2) 1024 bytes in process_read_output
3420 dnl read(2) 11 bytes in process_read_output
3422 dnl That is, read(2) returns more bytes than have ever been written
3423 dnl successfully. The 1033 bytes read are the 1022 bytes written
3424 dnl successfully after processing (for example with CRs added if the
3425 dnl terminal is set up that way which it is here). The same bytes will
3426 dnl be seen again in a later read(2), without the CRs.
3427 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
3428 work around an issue when reading from a PTY.])
3434 dnl FIXME Can't we test if this exists (eg /proc/$$)?
3435 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
3440 darwin | freebsd | netbsd | openbsd )
3441 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
3442 close a pty to make it a controlling terminal (it is already a
3443 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
3447 dnl FIXME Surely we can test for this rather than hard-code it.
3449 netbsd | openbsd) sound_device="/dev/audio" ;;
3450 *) sound_device="/dev/dsp" ;;
3454 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
3455 [Name of the default sound device.])
3458 dnl Emacs can read input using SIGIO and buffering characters itself,
3459 dnl or using CBREAK mode and making C-g cause SIGINT.
3460 dnl The choice is controlled by the variable interrupt_input.
3462 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
3464 dnl Emacs uses the presence of the USABLE_SIGIO macro
3465 dnl to indicate whether or not signal-driven I/O is possible. It uses
3466 dnl INTERRUPT_INPUT to decide whether to use it by default.
3468 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
3469 dnl CBREAK mode has two disadvantages
3470 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
3471 dnl I hear that in system V this problem does not exist.
3472 dnl 2) Control-G causes output to be discarded.
3473 dnl I do not know whether this can be fixed in system V.
3475 dnl Another method of doing input is planned but not implemented.
3476 dnl It would have Emacs fork off a separate process
3477 dnl to read the input and send it to the true Emacs process
3480 darwin | gnu-linux | gnu-kfreebsd )
3481 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
3486 dnl If the system's imake configuration file defines `NeedWidePrototypes'
3487 dnl as `NO', we must define NARROWPROTO manually. Such a define is
3488 dnl generated in the Makefile generated by `xmkmf'. If we don't define
3489 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
3490 dnl taking float or double parameters.
3492 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
3493 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
3494 file defines `NeedWidePrototypes' as `NO'.])
3499 dnl Used in process.c, this must be a loop, even if it only runs once.
3500 dnl (Except on SGI; see below. Take that, clarity and consistency!)
3501 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
3502 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
3503 dnl trying suffixes 0-16.
3504 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
3505 first PTY, if PTYs are supported.])
3506 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
3507 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
3508 end of a PTY, if non-standard.])
3509 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
3510 end of a PTY, if non-standard.])
3514 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
3515 dnl You allocate a pty by opening /dev/ptc to get the master side.
3516 dnl To get the name of the slave side, you just ttyname() the master side.
3517 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
3518 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
3522 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3523 dnl multi-line AC_DEFINEs are hard. :(
3524 AC_DEFINE(PTY_OPEN, [ do { int dummy; sigset_t blocked, procmask; sigemptyset (&blocked); sigaddset (&blocked, SIGCHLD); pthread_sigmask (SIG_BLOCK, &blocked, &procmask); if (-1 == openpty (&fd, &dummy, pty_name, 0, 0)) fd = -1; pthread_sigmask (SIG_SETMASK, &procmask, 0); if (fd >= 0) emacs_close (dummy); } while (0)])
3525 AC_DEFINE(PTY_NAME_SPRINTF, [])
3526 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3529 dnl FIXME? Maybe use same as freebsd - see bug#12040.
3531 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3532 dnl Not used, because PTY_ITERATION is defined.
3533 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3534 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
3535 dnl But we don't have to block SIGCHLD because it is blocked in the
3536 dnl implementation of grantpt.
3537 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (0)])
3538 AC_DEFINE(PTY_NAME_SPRINTF, [])
3539 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3543 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3546 gnu-linux | gnu-kfreebsd | freebsd | netbsd )
3548 if test "x$ac_cv_func_grantpt" = xyes; then
3549 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
3550 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3551 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
3552 dnl to prevent sigchld_handler from intercepting the child's death.
3553 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptyname = 0; sigset_t blocked; sigemptyset (&blocked); sigaddset (&blocked, SIGCHLD); pthread_sigmask (SIG_BLOCK, &blocked, 0); if (grantpt (fd) != -1 && unlockpt (fd) != -1) ptyname = ptsname(fd); pthread_sigmask (SIG_UNBLOCK, &blocked, 0); if (!ptyname) { close (fd); return -1; } snprintf (pty_name, sizeof pty_name, "%s", ptyname); }])
3554 dnl if HAVE_POSIX_OPENPT
3555 if test "x$ac_cv_func_posix_openpt" = xyes; then
3556 AC_DEFINE(PTY_OPEN, [fd = posix_openpt (O_RDWR | O_NOCTTY)])
3557 AC_DEFINE(PTY_NAME_SPRINTF, [])
3559 elif test "x$ac_cv_func_getpt" = xyes; then
3560 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
3561 AC_DEFINE(PTY_NAME_SPRINTF, [])
3563 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
3566 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3571 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3572 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
3573 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
3577 dnl It looks like this cannot be right, because it is not a loop.
3578 dnl However, process.c actually does this:
3584 dnl which presumably makes it OK, since irix == sgi (?).
3585 dnl FIXME it seems like this special treatment is unnecessary?
3586 dnl Why can't irix use a single-trip loop like eg cygwin?
3587 AC_DEFINE(PTY_ITERATION, [])
3588 dnl Not used, because PTY_ITERATION is defined.
3589 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
3590 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); }])
3591 dnl No need to get the pty name at all.
3592 AC_DEFINE(PTY_NAME_SPRINTF, [])
3593 dnl No need to use sprintf to get the tty name--we get that from _getpty.
3594 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3598 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
3599 dnl from intercepting that death. If any child but grantpt's should die
3600 dnl within, it should be caught after sigrelse(2).
3601 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptsname (int), *ptyname; int grantpt_result; sigset_t blocked; sigemptyset (&blocked); sigaddset (&blocked, SIGCLD); pthread_sigmask (SIG_BLOCK, &blocked, 0); grantpt_result = grantpt (fd); pthread_sigmask (SIG_UNBLOCK, &blocked, 0); if (grantpt_result == -1 || unlockpt (fd) == -1 || !(ptyname = ptsname (fd))) { emacs_close (fd); return -1; } snprintf (pty_name, sizeof pty_name, "%s", ptyname); }])
3605 dnl Comments are as per sol2*.
3606 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptsname (int), *ptyname; int grantpt_result; sigset_t blocked; sigemptyset (&blocked); sigaddset (&blocked, SIGCLD); pthread_sigmask (SIG_BLOCK, &blocked, 0); grantpt_result = grantpt (fd); pthread_sigmask (SIG_UNBLOCK, &blocked, 0); if (grantpt_result == -1) fatal("could not grant slave pty"); if (unlockpt(fd) == -1) fatal("could not unlock slave pty"); if (!(ptyname = ptsname(fd))) fatal ("could not enable slave pty"); snprintf (pty_name, sizeof pty_name, "%s", ptyname); }])
3613 dnl This change means that we don't loop through allocate_pty too
3614 dnl many times in the (rare) event of a failure.
3615 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
3616 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
3617 dnl Push various streams modules onto a PTY channel. Used in process.c.
3618 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.])
3623 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
3624 "typing" a signal character on the pty.])
3627 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
3628 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
3629 aix4-2 | cygwin | gnu | irix6-5 | freebsd | netbsd | openbsd )
3630 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3633 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
3634 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
3635 gnu-linux | gnu-kfreebsd )
3637 AC_MSG_CHECKING([for signals via characters])
3638 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3639 #include <linux/version.h>
3640 #if LINUX_VERSION_CODE < 0x20400
3641 # error "Linux version too old"
3643 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
3645 AC_MSG_RESULT([$emacs_signals_via_chars])
3646 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3651 dnl Used in vm-limit.c
3652 AH_TEMPLATE(DATA_START, [Address of the start of the data segment.])
3653 dnl Used in lisp.h, emacs.c, mem-limits.h
3654 dnl NEWS.18 describes this as "a number which contains
3655 dnl the high bits to be inclusive or'ed with pointers that are unpacked."
3656 AH_TEMPLATE(DATA_SEG_BITS, [Extra bits to be or'd in with any pointers
3657 stored in a Lisp_Object.])
3658 dnl if Emacs uses fewer than 32 bits for the value field of a LISP_OBJECT.
3662 dnl libc defines data_start.
3663 AC_DEFINE(DATA_START, [({ extern int data_start; (char *) &data_start; })])
3667 dnl The data segment on this machine always starts at address 0x40000000.
3668 AC_DEFINE(DATA_START, [0x40000000])
3669 AC_DEFINE(DATA_SEG_BITS, [0x40000000])
3672 AC_DEFINE(DATA_START, [0x10000000])
3673 AC_DEFINE(DATA_SEG_BITS, [0x10000000])
3678 AH_TEMPLATE(ULIMIT_BREAK_VALUE, [Undocumented.])
3679 AH_TEMPLATE(TAB3, [Undocumented.])
3682 darwin) AC_DEFINE(TAB3, OXTABS) ;;
3684 gnu | freebsd | netbsd | openbsd )
3685 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
3686 AC_DEFINE(TAB3, OXTABS)
3689 gnu-linux | gnu-kfreebsd )
3690 dnl libc-linux/sysdeps/linux/i386/ulimit.c says that due to shared
3691 dnl library, we cannot get the maximum address for brk.
3692 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3696 ]], [[]])], AC_DEFINE(ULIMIT_BREAK_VALUE, [(32*1024*1024)]), [])
3698 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3702 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
3703 [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)],
3704 [Mark a secondary stack, like the register stack on the ia64.]), [])
3708 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
3709 run_time_remap; for HPUX.])
3713 dnl Ulimit(UL_GMEMLIM) is busted...
3714 AC_DEFINE(ULIMIT_BREAK_VALUE, [0x14000000])
3719 dnl These won't be used automatically yet. We also need to know, at least,
3720 dnl that the stack is continuous.
3721 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
3722 registers relevant for conservative garbage collection in the jmp_buf.])
3724 AH_TEMPLATE(GC_MARK_STACK, [Define to GC_USE_GCPROS_AS_BEFORE if
3725 conservative garbage collection is not known to work.])
3729 aix4-2 | hpux* | unixware)
3730 dnl Conservative garbage collection has not been tested, so for now
3731 dnl play it safe and stick with the old-fashioned way of marking.
3732 AC_DEFINE(GC_MARK_STACK, [GC_USE_GCPROS_AS_BEFORE])
3735 dnl Not all the architectures are tested, but there are Debian packages
3736 dnl for SCM and/or Guile on them, so the technique must work. See also
3737 dnl comments in alloc.c concerning setjmp and gcc.
3738 dnl Fixme: it's probably safe to just use the GCC conditional below.
3739 gnu-linux | gnu-kfreebsd )
3740 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3741 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
3742 || defined __alpha__ || defined __mips__ || defined __s390__ \
3743 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
3744 || defined __ia64__ || defined __sh__
3747 # error "setjmp not known to work on this arch"
3749 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1),
3750 AC_DEFINE(GC_MARK_STACK, [GC_USE_GCPROS_AS_BEFORE]) )
3755 if test x$GCC = xyes; then
3756 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
3757 AC_DEFINE(GC_SETJMP_WORKS, 1)
3760 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
3761 freebsd | netbsd | openbsd | irix6-5 | sol2* )
3762 AC_DEFINE(GC_SETJMP_WORKS, 1)
3767 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
3770 [[#include <setjmp.h>
3774 _longjmp (j, 1);]])],
3775 [emacs_cv_func__setjmp=yes],
3776 [emacs_cv_func__setjmp=no])])
3777 if test $emacs_cv_func__setjmp = yes; then
3778 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
3780 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
3783 [[#include <setjmp.h>
3786 if (! sigsetjmp (j, 1))
3787 siglongjmp (j, 1);]])],
3788 [emacs_cv_func_sigsetjmp=yes],
3789 [emacs_cv_func_sigsetjmp=no])])
3790 if test $emacs_cv_func_sigsetjmp = yes; then
3791 AC_DEFINE([HAVE_SIGSETJMP], 1,
3792 [Define to 1 if sigsetjmp and siglongjmp work.
3793 The value of this symbol is irrelevant if HAVE__SETJMP is defined.])
3799 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
3800 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
3801 dnl and this is all we need.
3802 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
3809 dnl Used in xfaces.c.
3810 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
3811 some systems, where it requires time.h.])
3816 dnl Define symbols to identify the version of Unix this is.
3817 dnl Define all the symbols that apply correctly.
3818 AH_TEMPLATE(BSD4_2, [Define if the system is compatible with BSD 4.2.])
3819 AH_TEMPLATE(BSD_SYSTEM, [Define if the system is compatible with BSD 4.2.])
3820 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
3821 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
3822 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
3823 AH_TEMPLATE(USG5, [Define if the system is compatible with System V.])
3824 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
3830 dnl This symbol should be defined on AIX Version 3 ???????
3831 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3833 # error "_AIX not defined"
3835 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
3839 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
3843 dnl BSD4_3 and BSD4_4 are already defined in sys/param.h.
3844 AC_DEFINE(BSD4_2, [])
3845 AC_DEFINE(BSD_SYSTEM, [])
3846 dnl More specific than the above two. We cannot use __APPLE__ as this
3847 dnl may not be defined on non-OSX Darwin, and we cannot define DARWIN
3848 dnl here because Panther and lower CoreFoundation.h uses DARWIN to
3849 dnl distinguish OS X from pure Darwin.
3850 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
3854 AC_DEFINE(BSD4_2, [])
3855 dnl Hack to avoid calling AC_PREPROC_IFELSE multiple times.
3856 dnl Would not be needed with autoconf >= 2.67, where the
3857 dnl preprocessed output is accessible in "conftest.i".
3858 AC_DEFINE(BSD_SYSTEM_AHB, 1, [Define if AH_BOTTOM should change BSD_SYSTEM.])
3861 gnu | netbsd | openbsd )
3862 AC_DEFINE(BSD4_2, [])
3863 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3865 # error "BSD_SYSTEM not defined"
3867 ]], [[]])], [], AC_DEFINE(BSD_SYSTEM, 43) )
3870 gnu-linux | gnu-kfreebsd )
3872 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
3878 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
3884 AC_DEFINE(USG5_4, [])
3885 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
3891 AC_DEFINE(USG5_4, [])
3892 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
3898 AC_DEFINE(USG5_4, [])
3902 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
3905 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
3906 emacs_cv_usable_FIONREAD=no
3911 [AC_LANG_PROGRAM([[#include <sys/types.h>
3912 #include <sys/ioctl.h>
3914 # include <sys/filio.h>
3917 [[int foo = ioctl (0, FIONREAD, &foo);]])],
3918 [emacs_cv_usable_FIONREAD=yes],
3919 [emacs_cv_usable_FIONREAD=no])
3922 if test $emacs_cv_usable_FIONREAD = yes; then
3923 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
3925 if test $emacs_broken_SIGIO = no; then
3926 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
3928 [AC_LANG_PROGRAM([[#include <fcntl.h>
3931 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
3932 [emacs_cv_usable_SIGIO=yes],
3933 [emacs_cv_usable_SIGIO=no])],
3934 [emacs_cv_usable_SIGIO=yes],
3935 [emacs_cv_usable_SIGIO=no])
3936 if test $emacs_cv_usable_SIGIO = yes; then
3937 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
3944 dnl Emacs supplies its own malloc, but glib (part of Gtk+) calls
3945 dnl memalign and on Cygwin, that becomes the Cygwin-supplied memalign.
3946 dnl As malloc is not the Cygwin malloc, the Cygwin memalign always
3947 dnl returns ENOSYS. A workaround is to set G_SLICE=always-malloc. */
3949 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
3950 G_SLICE environment variable to "always-malloc" at startup, if
3955 dnl It works to open the pty's tty in the parent (Emacs), then
3956 dnl close and reopen it in the child.
3957 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
3958 works to open a pty's tty in the parent process, then close and
3959 reopen it in the child.])
3963 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
3964 use VSUSP instead of VSWTCH.])
3968 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
3973 # Set up the CFLAGS for real compilation, so we can substitute it.
3974 CFLAGS="$REAL_CFLAGS"
3975 CPPFLAGS="$REAL_CPPFLAGS"
3977 ## Hack to detect a buggy GCC version.
3978 if test "x$GCC" = xyes \
3979 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
3980 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
3981 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
3982 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
3985 version=$PACKAGE_VERSION
3987 copyright="Copyright (C) 2012 Free Software Foundation, Inc."
3988 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
3989 [Short copyright string for this version of Emacs.])
3992 ### Specify what sort of things we'll be editing into Makefile and config.h.
3993 ### Use configuration here uncanonicalized to avoid exceeding size limits.
3995 AC_SUBST(configuration)
4000 AC_SUBST(exec_prefix)
4003 AC_SUBST(sharedstatedir)
4004 AC_SUBST(libexecdir)
4009 AC_SUBST(standardlisppath)
4010 AC_SUBST(locallisppath)
4012 AC_SUBST(x_default_search_path)
4014 AC_SUBST(archlibdir)
4019 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4020 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4021 ## end of LIBX_BASE, but nothing ever set it.
4022 AC_SUBST(LD_SWITCH_X_SITE)
4023 AC_SUBST(C_SWITCH_X_SITE)
4024 AC_SUBST(GNUSTEP_CFLAGS)
4026 ## Used in lwlib/Makefile.in.
4027 AC_SUBST(X_TOOLKIT_TYPE)
4029 AC_SUBST(ns_appbindir)
4030 AC_SUBST(ns_appresdir)
4032 AC_SUBST(GNU_OBJC_CFLAGS)
4033 AC_SUBST(OTHER_FILES)
4035 if test -n "${term_header}"; then
4036 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4037 [Define to the header for the built-in window system.])
4040 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4041 [Define to the canonical Emacs configuration name.])
4042 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${ac_configure_args}",
4043 [Define to the options passed to configure.])
4044 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4045 define this to include extra configuration information.])
4050 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4051 AC_DEFINE(HAVE_X_WINDOWS, 1,
4052 [Define to 1 if you want to use the X window system.])
4054 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o xgselect.o"
4056 if test "$HAVE_XFT" = "yes"; then
4057 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4058 elif test "$HAVE_FREETYPE" = "yes"; then
4059 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4069 if test "${USE_X_TOOLKIT}" != "none" ; then
4071 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4072 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4073 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4074 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4075 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4079 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4080 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4084 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4085 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4086 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4090 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4091 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4094 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4097 AC_SUBST(WIDGET_OBJ)
4100 case "$USE_X_TOOLKIT" in
4101 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4102 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4103 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4105 AC_SUBST(TOOLKIT_LIBW)
4107 if test "$USE_X_TOOLKIT" = "none"; then
4108 LIBXT_OTHER="\$(LIBXSM)"
4109 OLDXMENU_TARGET="really-oldXMenu"
4111 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4112 OLDXMENU_TARGET="really-lwlib"
4114 AC_SUBST(LIBXT_OTHER)
4116 ## The X Menu stuff is present in the X10 distribution, but missing
4117 ## from X11. If we have X10, just use the installed library;
4118 ## otherwise, use our own copy.
4119 if test "${HAVE_X11}" = "yes" ; then
4120 AC_DEFINE(HAVE_X11, 1,
4121 [Define to 1 if you want to use version 11 of X windows.
4122 Otherwise, Emacs expects to use version 10.])
4124 if test "$USE_X_TOOLKIT" = "none"; then
4125 OLDXMENU="\${oldXMenudir}/libXMenu11.a"
4127 OLDXMENU="\${lwlibdir}/liblw.a"
4129 LIBXMENU="\$(OLDXMENU)"
4130 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4131 OLDXMENU_DEPS="\${OLDXMENU} ../src/\${OLDXMENU}"
4133 ## For a syntactically valid Makefile; not actually used for anything.
4134 ## See comments in src/Makefile.in.
4136 ## FIXME This case (!HAVE_X11 && HAVE_X_WINDOWS) is no longer possible(?).
4137 if test "${HAVE_X_WINDOWS}" = "yes"; then
4146 if test "$HAVE_GTK" = "yes" || test "$HAVE_MENUS" != "yes"; then
4153 AC_SUBST(OLDXMENU_TARGET)
4156 AC_SUBST(LIBX_OTHER)
4157 AC_SUBST(OLDXMENU_DEPS)
4159 if test "${HAVE_MENUS}" = "yes" ; then
4160 AC_DEFINE(HAVE_MENUS, 1,
4161 [Define to 1 if you have mouse menus.
4162 (This is automatic if you use X, but the option to specify it remains.)
4163 It is also defined with other window systems that support xmenu.c.])
4166 if test "${GNU_MALLOC}" = "yes" ; then
4167 AC_DEFINE(GNU_MALLOC, 1,
4168 [Define to 1 if you want to use the GNU memory allocator.])
4172 if test "${REL_ALLOC}" = "yes" ; then
4173 AC_DEFINE(REL_ALLOC, 1,
4174 [Define REL_ALLOC if you want to use the relocating allocator for
4177 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4179 AC_SUBST(RALLOC_OBJ)
4181 if test "$opsys" = "cygwin"; then
4182 CYGWIN_OBJ="sheap.o cygw32.o"
4183 ## Cygwin differs because of its unexec().
4185 POST_ALLOC_OBJ=lastfile.o
4188 PRE_ALLOC_OBJ=lastfile.o
4191 AC_SUBST(CYGWIN_OBJ)
4192 AC_SUBST(PRE_ALLOC_OBJ)
4193 AC_SUBST(POST_ALLOC_OBJ)
4195 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4196 # it temporarily reverts them to their pre-pkg-config values,
4197 # because gnulib needs to work with both src (which uses the
4198 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4199 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4200 # and it therefore needs to run in an environment where LIBS does not
4201 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4202 # for some package unrelated to lib-src.
4205 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4206 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4207 gl_ASSERT_NO_GNULIB_POSIXCHECK
4208 gl_ASSERT_NO_GNULIB_TESTS
4214 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4217 ## The -headerpad option tells ld (see man page) to leave room at the
4218 ## end of the header for adding load commands. Needed for dumping.
4219 ## 0x690 is the total size of 30 segment load commands (at 56
4220 ## each); under Cocoa 31 commands are required.
4221 if test "$HAVE_NS" = "yes"; then
4222 libs_nsgui="-framework AppKit"
4228 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4230 ## This is here because src/Makefile.in did some extra fiddling around
4231 ## with LD_SWITCH_SYSTEM. The cpp logic was:
4232 ## #ifndef LD_SWITCH_SYSTEM
4233 ## #if !defined (__GNUC__) && ((defined (BSD_SYSTEM) && !defined (COFF)))
4234 ## Since all the *bsds define LD_SWITCH_SYSTEM, this simplifies to:
4235 ## not using gcc, darwin.
4236 ## Because this was done in src/Makefile.in, the resulting part of
4237 ## LD_SWITCH_SYSTEM was not used in configure (ie, in ac_link).
4238 ## It therefore seems cleaner to put this in LD_SWITCH_SYSTEM_TEMACS,
4239 ## rather than LD_SWITCH_SYSTEM.
4240 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4241 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4244 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4245 ## find X at run-time.
4246 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4247 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4248 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4249 ## had different values in configure (in ac_link) and src/Makefile.in.
4250 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4251 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4253 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4256 if test "$NS_IMPL_GNUSTEP" = "yes"; then
4257 LD_SWITCH_SYSTEM_TEMACS="${LD_SWITCH_SYSTEM_TEMACS} -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES} -lgnustep-gui -lgnustep-base -lobjc -lpthread"
4260 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4266 ## gnu: GNU needs its own crt0.
4267 aix4-2|cygwin|darwin|gnu|hpux*|irix6-5|sol2*|unixware) ORDINARY_LINK=yes ;;
4269 ## On post 1.3 releases of NetBSD, gcc -nostdlib also clears the
4270 ## library search parth, i.e. it won't search /usr/lib for libc and
4271 ## friends. Using -nostartfiles instead avoids this problem, and
4272 ## will also work on earlier NetBSD releases.
4273 netbsd|openbsd) LD_FIRSTFLAG="-nostartfiles" ;;
4275 ## powerpc*: NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp> says
4276 ## MkLinux/LinuxPPC needs this.
4277 ## s390x-* only supports opsys = gnu-linux so it can be added here.
4279 case "$canonical" in
4280 powerpc*|s390x-*) LD_FIRSTFLAG="-nostdlib" ;;
4286 if test "x$ORDINARY_LINK" = "xyes"; then
4289 AC_DEFINE(ORDINARY_LINK, 1, [Define if the C compiler is the linker.])
4291 ## The system files defining neither ORDINARY_LINK nor LD_FIRSTFLAG are:
4292 ## freebsd, gnu-* not on powerpc*|s390x*.
4293 elif test "x$GCC" = "xyes" && test "x$LD_FIRSTFLAG" = "x"; then
4295 ## Versions of GCC >= 2.0 put their library, libgcc.a, in obscure
4296 ## places that are difficult to figure out at make time. Fortunately,
4297 ## these same versions allow you to pass arbitrary flags on to the
4298 ## linker, so there is no reason not to use it as a linker.
4300 ## Well, it is not quite perfect. The "-nostdlib" keeps GCC from
4301 ## searching for libraries in its internal directories, so we have to
4302 ## ask GCC explicitly where to find libgcc.a (LIB_GCC below).
4303 LD_FIRSTFLAG="-nostdlib"
4306 ## FIXME? What setting of EDIT_LDFLAGS should this have?
4307 test "$NS_IMPL_GNUSTEP" = "yes" && LD_FIRSTFLAG="-rdynamic"
4309 AC_SUBST(LD_FIRSTFLAG)
4312 ## FIXME? The logic here is not precisely the same as that above.
4313 ## There is no check here for a pre-defined LD_FIRSTFLAG.
4314 ## Should we only be setting LIB_GCC if LD ~ -nostdlib?
4316 if test "x$GCC" = "xyes" && test "x$ORDINARY_LINK" != "xyes"; then
4319 freebsd|netbsd|openbsd) LIB_GCC= ;;
4322 ## armin76@gentoo.org reported that the lgcc_s flag is necessary to
4323 ## build on ARM EABI under GNU/Linux. (Bug#5518)
4329 ## FIXME? s/gnu-linux.h used to define LIB_GCC as below, then
4330 ## immediately undefine it again and redefine it to empty.
4331 ## Was the C_SWITCH_X_SITE part really necessary?
4332 ## LIB_GCC=`$CC $C_SWITCH_X_SITE -print-libgcc-file-name`
4338 ## Ask GCC where to find libgcc.a.
4339 *) LIB_GCC=`$CC -print-libgcc-file-name 2> /dev/null` ;;
4344 ## Common for all window systems
4345 if test "$window_system" != "none"; then
4346 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4347 AC_DEFINE(HAVE_MOUSE, 1, [Define if you have mouse support.])
4348 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4351 AC_SUBST(WINDOW_SYSTEM_OBJ)
4353 AH_TOP([/* GNU Emacs site configuration template file.
4355 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2012
4356 Free Software Foundation, Inc.
4358 This file is part of GNU Emacs.
4360 GNU Emacs is free software: you can redistribute it and/or modify
4361 it under the terms of the GNU General Public License as published by
4362 the Free Software Foundation, either version 3 of the License, or
4363 (at your option) any later version.
4365 GNU Emacs is distributed in the hope that it will be useful,
4366 but WITHOUT ANY WARRANTY; without even the implied warranty of
4367 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4368 GNU General Public License for more details.
4370 You should have received a copy of the GNU General Public License
4371 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4374 /* No code in Emacs #includes config.h twice, but some bits of code
4375 intended to work with other packages as well (like gmalloc.c)
4376 think they can include it as many times as they like. */
4377 #ifndef EMACS_CONFIG_H
4378 #define EMACS_CONFIG_H
4381 AH_BOTTOM([#include <conf_post.h>
4383 #endif /* EMACS_CONFIG_H */
4392 #### Report on what we decided to do.
4393 #### Report GTK as a toolkit, even if it doesn't use Xt.
4394 #### It makes printing result more understandable as using GTK sets
4395 #### toolkit_scroll_bars to yes by default.
4396 if test "${HAVE_GTK}" = "yes"; then
4397 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
4401 Configured for \`${canonical}'.
4403 Where should the build process find the source code? ${srcdir}
4404 What compiler should emacs be built with? ${CC} ${CFLAGS}
4405 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4406 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4407 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4408 What window system should Emacs use? ${window_system}
4409 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4411 if test -n "${x_includes}"; then
4412 echo " Where do we find X Windows header files? ${x_includes}"
4414 echo " Where do we find X Windows header files? Standard dirs"
4416 if test -n "${x_libraries}"; then
4417 echo " Where do we find X Windows libraries? ${x_libraries}"
4419 echo " Where do we find X Windows libraries? Standard dirs"
4422 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4423 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4424 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4425 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4426 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4427 echo " Does Emacs use -lpng? ${HAVE_PNG}"
4428 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4429 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4431 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4432 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4433 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4434 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4435 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4436 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4437 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4439 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4440 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4441 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
4442 echo " Does Emacs use -lxft? ${HAVE_XFT}"
4444 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
4447 if test -n "${EMACSDATA}"; then
4448 echo " Environment variable EMACSDATA set to: $EMACSDATA"
4450 if test -n "${EMACSDOC}"; then
4451 echo " Environment variable EMACSDOC set to: $EMACSDOC"
4456 if test "$HAVE_NS" = "yes"; then
4458 echo "You must run \"${MAKE-make} install\" in order to test the built application.
4459 The installed application will go to nextstep/Emacs.app and can be
4460 run or moved from there."
4461 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
4462 echo "The application will be fully self-contained."
4464 echo "The lisp resources for the application will be installed under ${prefix}.
4465 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
4466 to run if these resources are not installed."
4471 if test "${opsys}" = "cygwin"; then
4473 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
4479 # Remove any trailing slashes in these variables.
4480 [test "${prefix}" != NONE &&
4481 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
4482 test "${exec_prefix}" != NONE &&
4483 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
4485 if test "$HAVE_NS" = "yes"; then
4486 if test "$NS_IMPL_GNUSTEP" = yes; then
4487 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
4488 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
4490 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
4491 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
4495 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
4496 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
4497 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
4498 dnl (else you get "no `Makefile.am' found for any configure output").
4499 dnl This will work, but you get a config.status that is not quite right
4500 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
4501 dnl That doesn't have any obvious consequences for Emacs, but on the whole
4502 dnl it seems better to just live with the duplication.
4503 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile"
4505 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
4506 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
4507 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
4508 leim/Makefile nextstep/Makefile])
4510 dnl test/ is not present in release tarfiles.
4511 opt_makefile=test/automated/Makefile
4513 if test -f $srcdir/${opt_makefile}.in; then
4514 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4515 dnl Again, it's best not to use a variable. Though you can add
4516 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
4517 AC_CONFIG_FILES([test/automated/Makefile])
4521 dnl admin/ may or may not be present.
4522 opt_makefile=admin/unidata/Makefile
4524 if test -f $srcdir/${opt_makefile}.in; then
4525 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4526 AC_CONFIG_FILES([admin/unidata/Makefile])
4530 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
4532 AC_SUBST(SUBDIR_MAKEFILES_IN)
4534 dnl Make the necessary directories, if they don't exist.
4535 AC_CONFIG_COMMANDS([mkdirs], [
4536 for dir in etc lisp ; do
4537 test -d ${dir} || mkdir ${dir}
4541 dnl You might wonder (I did) why epaths.h is generated by running make,
4542 dnl rather than just letting configure generate it from epaths.in.
4543 dnl One reason is that the various paths are not fully expanded (see above);
4544 dnl eg gamedir=${prefix}/var/games/emacs.
4545 dnl Secondly, the GNU Coding standards require that one should be able
4546 dnl to run `make prefix=/some/where/else' and override the values set
4547 dnl by configure. This also explains the `move-if-change' test and
4548 dnl the use of force in the `epaths-force' rule in Makefile.in.
4549 AC_CONFIG_COMMANDS([epaths], [
4550 echo creating src/epaths.h
4551 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
4552 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS"])
4554 AC_CONFIG_COMMANDS([gdbinit], [
4555 if test ! -f src/.gdbinit && test -f $srcdir/src/.gdbinit; then
4556 echo creating src/.gdbinit
4557 echo source $srcdir/src/.gdbinit > src/.gdbinit