1 dnl Autoconf script for GNU Emacs
2 dnl To rebuild the `configure' script from this, execute the command
4 dnl in the directory containing this script.
5 dnl If you changed any AC_DEFINES, also run autoheader.
7 dnl Copyright (C) 1994-1996, 1999-2012 Free Software Foundation, Inc.
9 dnl This file is part of GNU Emacs.
11 dnl GNU Emacs is free software: you can redistribute it and/or modify
12 dnl it under the terms of the GNU General Public License as published by
13 dnl the Free Software Foundation, either version 3 of the License, or
14 dnl (at your option) any later version.
16 dnl GNU Emacs is distributed in the hope that it will be useful,
17 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
18 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 dnl GNU General Public License for more details.
21 dnl You should have received a copy of the GNU General Public License
22 dnl along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
25 AC_INIT(emacs, 24.2.50)
26 AC_CONFIG_HEADER(src/config.h:src/config.in)
27 AC_CONFIG_SRCDIR(src/lisp.h)
28 AC_CONFIG_AUX_DIR(build-aux)
29 dnl Fairly arbitrary, older versions might work too.
30 AM_INIT_AUTOMAKE(1.11)
32 dnl Support for --program-prefix, --program-suffix and
33 dnl --program-transform-name options
36 dnl It is important that variables on the RHS not be expanded here,
37 dnl hence the single quotes. This is per the GNU coding standards, see
38 dnl (autoconf) Installation Directory Variables
39 dnl See also epaths.h below.
40 lispdir='${datadir}/emacs/${version}/lisp'
41 leimdir='${datadir}/emacs/${version}/leim'
42 standardlisppath='${lispdir}:${leimdir}'
43 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
44 '${datadir}/emacs/site-lisp'
45 lisppath='${locallisppath}:${standardlisppath}'
46 etcdir='${datadir}/emacs/${version}/etc'
47 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
48 docdir='${datadir}/emacs/${version}/etc'
49 gamedir='${localstatedir}/games/emacs'
51 dnl Special option to disable the most of other options.
53 [AS_HELP_STRING([--without-all],
54 [omit almost all features and build
55 small executable with minimal dependencies])],
56 with_features=$withval,
59 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
60 dnl Create a new --with option that defaults to being disabled.
61 dnl NAME is the base name of the option. The shell variable with_NAME
62 dnl will be set to either the user's value (if the option is
63 dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
64 dnl option is not specified). Note that the shell variable name is
65 dnl constructed as autoconf does, by replacing non-alphanumeric
66 dnl characters with "_".
67 dnl HELP-STRING is the help text for the option.
68 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
69 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
70 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
73 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
74 dnl Create a new --with option that defaults to $enable_features.
75 dnl NAME is the base name of the option. The shell variable with_NAME
76 dnl will be set either to 'no' (for a plain --without-NAME) or to
77 dnl 'yes' (if the option is not specified). Note that the shell
78 dnl variable name is constructed as autoconf does, by replacing
79 dnl non-alphanumeric characters with "_".
80 dnl HELP-STRING is the help text for the option.
81 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
82 AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
83 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=$with_features])dnl
86 OPTION_DEFAULT_ON([pop],[don't support POP mail retrieval with movemail])
87 if test "$with_pop" = yes; then
88 AC_DEFINE(MAIL_USE_POP)
90 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
92 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
93 if test "$with_kerberos" != no; then
97 [Define to support Kerberos-authenticated POP mail retrieval.])dnl
99 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
100 if test "${with_kerberos5}" != no; then
101 if test "${with_kerberos}" = no; then
105 AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
108 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
109 dnl FIXME hesiod support may not be present, so it seems like an error
110 dnl to define, or at least use, this unconditionally.
111 if test "$with_hesiod" != no; then
112 AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
115 OPTION_DEFAULT_OFF([mmdf],[support MMDF mailboxes])
116 if test "$with_mmdf" != no; then
117 AC_DEFINE(MAIL_USE_MMDF, 1, [Define to support MMDF mailboxes in movemail.])
120 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
121 if test "$with_mail_unlink" != no; then
122 AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
125 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
126 [string giving default POP mail host])],
127 AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
129 OPTION_DEFAULT_ON([sound],[don't compile with sound support])
131 dnl FIXME currently it is not the last.
132 dnl This should be the last --with option, because --with-x is
133 dnl added later on when we find the path of X, and it's best to
134 dnl keep them together visually.
135 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
136 [use an X toolkit (KIT one of: yes or gtk, gtk2, gtk3, lucid or athena, motif, no)])],
137 [ case "${withval}" in
138 y | ye | yes ) val=gtk ;;
140 l | lu | luc | luci | lucid ) val=lucid ;;
141 a | at | ath | athe | athen | athena ) val=athena ;;
142 m | mo | mot | moti | motif ) val=motif ;;
143 g | gt | gtk ) val=gtk ;;
147 AC_MSG_ERROR([`--with-x-toolkit=$withval' is invalid;
148 this option's value should be `yes', `no', `lucid', `athena', `motif', `gtk',
149 `gtk2' or `gtk3'. `yes' and `gtk' are synonyms.
150 `athena' and `lucid' are synonyms.])
156 OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit)])
157 if test "$with_wide_int" = yes; then
158 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
161 dnl _ON results in a '--without' option in the --help output, so
162 dnl the help text should refer to "don't compile", etc.
163 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
164 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
165 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
166 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
167 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
168 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
169 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
170 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
172 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
173 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
174 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
176 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
177 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
178 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
179 OPTION_DEFAULT_OFF([ns],[use NeXTstep (Cocoa or GNUstep) windowing system])
181 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
182 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
183 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
184 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
185 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
186 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
188 OPTION_DEFAULT_OFF([xwidgets],[enable use of some gtk widgets it Emacs buffers])
190 ## For the times when you want to build Emacs but don't have
191 ## a suitable makeinfo, and can live without the manuals.
192 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
193 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
195 ## Makefile.in needs the cache file name.
198 ## This is an option because I do not know if all info/man support
199 ## compressed files, nor how to test if they do so.
200 OPTION_DEFAULT_ON([compress-info],[don't compress the installed Info pages])
201 if test $with_compress_info = yes; then
208 AC_ARG_WITH([pkg-config-prog],dnl
209 [AS_HELP_STRING([--with-pkg-config-prog=PATH],
210 [path to pkg-config for finding GTK and librsvg])])
211 if test "X${with_pkg_config_prog}" != X; then
212 if test "${with_pkg_config_prog}" != yes; then
213 PKG_CONFIG="${with_pkg_config_prog}"
218 AC_ARG_WITH([crt-dir],dnl
219 [AS_HELP_STRING([--with-crt-dir=DIR],[directory containing crtn.o etc.
220 The default is /usr/lib, or /usr/lib64 on some platforms.])])
221 CRT_DIR="${with_crt_dir}"
223 AC_ARG_WITH(gameuser,dnl
224 [AS_HELP_STRING([--with-gameuser=USER],[user for shared game score files])])
225 test "X${with_gameuser}" != X && test "${with_gameuser}" != yes \
226 && gameuser="${with_gameuser}"
227 test "X$gameuser" = X && gameuser=games
229 AC_ARG_WITH([gnustep-conf],dnl
230 [AS_HELP_STRING([--with-gnustep-conf=PATH],[path to GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
231 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
232 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
233 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
234 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
236 AC_ARG_ENABLE(ns-self-contained,
237 [AS_HELP_STRING([--disable-ns-self-contained],
238 [disable self contained build under NeXTstep])],
239 EN_NS_SELF_CONTAINED=$enableval,
240 EN_NS_SELF_CONTAINED=yes)
242 AC_ARG_ENABLE(locallisppath,
243 [AS_HELP_STRING([--enable-locallisppath=PATH],
244 [directories Emacs should search for lisp files specific
246 if test "${enableval}" = "no"; then
248 elif test "${enableval}" != "yes"; then
249 locallisppath=${enableval}
252 AC_ARG_ENABLE(checking,
253 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
254 [enable expensive run-time checks. With LIST,
255 enable only specific categories of checks.
256 Categories are: all,yes,no.
257 Flags are: stringbytes, stringoverrun, stringfreelist,
258 xmallocoverrun, conslist, glyphs])],
259 [ac_checking_flags="${enableval}"],[])
260 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
261 for check in $ac_checking_flags
264 # these set all the flags to specific states
265 yes) ac_enable_checking=1 ;;
266 no) ac_enable_checking= ;
267 ac_gc_check_stringbytes= ;
268 ac_gc_check_string_overrun= ;
269 ac_gc_check_string_free_list= ;
270 ac_xmalloc_overrun= ;
271 ac_gc_check_cons_list= ;
273 all) ac_enable_checking=1 ;
274 ac_gc_check_stringbytes=1 ;
275 ac_gc_check_string_overrun=1 ;
276 ac_gc_check_string_free_list=1 ;
277 ac_xmalloc_overrun=1 ;
278 ac_gc_check_cons_list=1 ;
280 # these enable particular checks
281 stringbytes) ac_gc_check_stringbytes=1 ;;
282 stringoverrun) ac_gc_check_string_overrun=1 ;;
283 stringfreelist) ac_gc_check_string_free_list=1 ;;
284 xmallocoverrun) ac_xmalloc_overrun=1 ;;
285 conslist) ac_gc_check_cons_list=1 ;;
286 glyphs) ac_glyphs_debug=1 ;;
287 *) AC_MSG_ERROR(unknown check category $check) ;;
292 if test x$ac_enable_checking != x ; then
293 AC_DEFINE(ENABLE_CHECKING, 1,
294 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
296 if test x$ac_gc_check_stringbytes != x ; then
297 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
298 [Define this temporarily to hunt a bug. If defined, the size of
299 strings is redundantly recorded in sdata structures so that it can
300 be compared to the sizes recorded in Lisp strings.])
302 if test x$ac_gc_check_string_overrun != x ; then
303 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
304 [Define this to check for short string overrun.])
306 if test x$ac_gc_check_string_free_list != x ; then
307 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
308 [Define this to check the string free list.])
310 if test x$ac_xmalloc_overrun != x ; then
311 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
312 [Define this to check for malloc buffer overrun.])
314 if test x$ac_gc_check_cons_list != x ; then
315 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
316 [Define this to check for errors in cons list.])
318 if test x$ac_glyphs_debug != x ; then
319 AC_DEFINE(GLYPH_DEBUG, 1,
320 [Define this to enable glyphs debugging code.])
323 AC_ARG_ENABLE(check-lisp-object-type,
324 [AS_HELP_STRING([--enable-check-lisp-object-type],
325 [enable compile time checks for the Lisp_Object data type.
326 This is useful for development for catching certain types of bugs.])],
327 if test "${enableval}" != "no"; then
328 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
329 [Define this to enable compile time checks for the Lisp_Object data type.])
333 AC_ARG_ENABLE(profiling,
334 [AS_HELP_STRING([--enable-profiling],
335 [build emacs with profiling support.
336 This might not work on all platforms])],
337 [ac_enable_profiling="${enableval}"],[])
338 if test x$ac_enable_profiling != x ; then
339 PROFILING_CFLAGS="-DPROFILING=1 -pg"
343 AC_SUBST(PROFILING_CFLAGS)
345 AC_ARG_ENABLE(autodepend,
346 [AS_HELP_STRING([--enable-autodepend],
347 [automatically generate dependencies to .h-files.
348 Requires GNU Make and Gcc. Enabled if GNU Make and Gcc is
350 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
352 #### Make srcdir absolute, if it isn't already. It's important to
353 #### avoid running the path through pwd unnecessarily, since pwd can
354 #### give you automounter prefixes, which can go away. We do all this
355 #### so Emacs can find its files when run uninstalled.
356 ## Make sure CDPATH doesn't affect cd (in case PWD is relative).
361 ## We may be able to use the $PWD environment variable to make this
362 ## absolute. But sometimes PWD is inaccurate.
363 ## Note: we used to use ${PWD} at the end instead of `pwd`,
364 ## but that tested only for a well-formed and valid PWD,
365 ## it did not object when PWD was well-formed and valid but just wrong.
366 if test ".${PWD}" != "." && test ".`(cd ${PWD} ; sh -c pwd)`" = ".`pwd`" ;
370 srcdir="`(cd ${srcdir}; pwd)`"
373 * ) srcdir="`(cd ${srcdir}; pwd)`" ;;
376 ### Canonicalize the configuration name.
380 configuration=${host_alias-${build_alias-$host}}
382 dnl This used to use changequote, but, apart from `changequote is evil'
383 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
384 dnl the great gob of text. Thus it's not processed for possible expansion.
385 dnl Just make sure the brackets remain balanced.
387 dnl Since Emacs can't find matching pairs of quotes, boundaries are
388 dnl indicated by comments.
392 ### If you add support for a new configuration, add code to this
393 ### switch statement to recognize your configuration name and select
394 ### the appropriate operating system file.
396 ### You would hope that you could choose an s/*.h
397 ### file based on the operating system portion. However, it turns out
398 ### that each s/*.h file is pretty manufacturer-specific.
399 ### So we basically have to have a special case for each
400 ### configuration name.
402 ### As far as handling version numbers on operating systems is
403 ### concerned, make sure things will fail in a fixable way. If
404 ### /etc/MACHINES doesn't say anything about version numbers, be
405 ### prepared to handle anything reasonably. If version numbers
406 ### matter, be sure /etc/MACHINES says something about it.
409 case "${canonical}" in
411 ## GNU/Linux and similar ports
421 ## FreeBSD kernel + glibc based userland
436 ## Apple Darwin / Mac OS X
438 case "${canonical}" in
445 ## Use fink packages if available.
446 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
447 ## if test -d /sw/include && test -d /sw/lib; then
448 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
449 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
453 ## HP 9000 series 700 and 800, running HP/UX
457 hppa*-hp-hpux1[1-9]* )
459 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
463 rs6000-ibm-aix4.[23]* )
466 powerpc-ibm-aix4.[23]* )
469 rs6000-ibm-aix[56]* )
472 powerpc-ibm-aix[56]* )
476 ## Silicon Graphics machines
480 # Without defining _LANGUAGE_C, things get masked out in the headers
481 # so that, for instance, grepping for `free' in stdlib.h fails and
482 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
483 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
488 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
489 | x86_64-*-solaris2* | x86_64-*-sunos5*)
490 case "${canonical}" in
492 amd64-*-*|x86_64-*-*) ;;
496 case "${canonical}" in
497 *-sunos5.6* | *-solaris2.6* )
501 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
503 emacs_check_sunpro_c=yes
505 *-sunos5* | *-solaris* )
507 emacs_check_sunpro_c=yes
510 ## Watch out for a compiler that we know will not work.
511 case "${canonical}" in
512 *-solaris* | *-sunos5* )
513 if [ "x$CC" = x/usr/ucb/cc ]; then
514 ## /usr/ucb/cc doesn't work;
515 ## we should find some other compiler that does work.
523 ## Intel 386 machines where we don't care about the manufacturer.
525 case "${canonical}" in
526 *-cygwin ) opsys=cygwin ;;
527 *-darwin* ) opsys=darwin ;;
528 *-sysv4.2uw* ) opsys=unixware ;;
529 *-sysv5uw* ) opsys=unixware ;;
530 *-sysv5OpenUNIX* ) opsys=unixware ;;
531 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
540 ### If the code above didn't choose an operating system, just choose
541 ### an operating system based on the configuration name. You really
542 ### only want to use this when you have no idea what the right
543 ### operating system is; if you know what operating systems a machine
544 ### runs, it's cleaner to make it explicit in the case statement
546 if test x"${opsys}" = x; then
547 case "${canonical}" in
548 *-gnu* ) opsys=gnu ;;
558 if test $unported = yes; then
559 AC_MSG_ERROR([Emacs hasn't been ported to `${canonical}' systems.
560 Check `etc/MACHINES' for recognized configuration names.])
564 #### Choose a compiler.
566 dnl Sets GCC=yes if using gcc.
570 if test x$GCC = xyes; then
571 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
573 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
576 # Initialize gnulib right after choosing the compiler.
579 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
580 # if -g3 works and the user does not specify CFLAGS.
581 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
582 if test "$ac_test_CFLAGS" != set; then
585 emacs_g3_CFLAGS='-g3';;
587 emacs_g3_CFLAGS='-g3 -O2';;
591 if test -n "$emacs_g3_CFLAGS"; then
592 emacs_save_CFLAGS=$CFLAGS
593 CFLAGS=$emacs_g3_CFLAGS
594 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
595 [emacs_cv_prog_cc_g3],
596 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
597 [emacs_cv_prog_cc_g3=yes],
598 [emacs_cv_prog_cc_g3=no])])
599 if test $emacs_cv_prog_cc_g3 = yes; then
600 CFLAGS=$emacs_g3_CFLAGS
602 CFLAGS=$emacs_save_CFLAGS
607 AC_ARG_ENABLE([gcc-warnings],
608 [AS_HELP_STRING([--enable-gcc-warnings],
609 [turn on lots of GCC warnings. This is intended for
610 developers, and may generate false alarms when used
611 with older or non-GNU development tools.])],
614 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
616 gl_gcc_warnings=$enableval],
620 AC_ARG_ENABLE(link-time-optimization,
621 [AS_HELP_STRING([--enable-link-time-optimization],
622 [build emacs with link-time optimization.
623 This is supported only for GCC since 4.5.0.])],
624 if test "${enableval}" != "no"; then
625 AC_MSG_CHECKING([whether link-time optimization is supported])
627 if test x$GCC = xyes; then
628 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
629 if test x$CPUS != x; then
635 CFLAGS="$CFLAGS $LTO"
636 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
637 [ac_lto_supported=yes], [ac_lto_supported=no])
640 AC_MSG_RESULT([$ac_lto_supported])
641 if test "$ac_lto_supported" = "yes"; then
642 CFLAGS="$CFLAGS $LTO"
646 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
647 # ------------------------------------------------
648 # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
649 # Otherwise, run RUN-IF-NOT-FOUND.
650 AC_DEFUN([gl_GCC_VERSION_IFELSE],
654 #if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
657 # error "your version of gcc is older than $1.$2"
664 # When compiling with GCC, prefer -isystem to -I when including system
665 # include files, to avoid generating useless diagnostics for the files.
666 if test "$gl_gcc_warnings" != yes; then
671 # This, $nw, is the list of warnings we disable.
674 case $with_x_toolkit in
675 lucid | athena | motif)
676 # Old toolkits mishandle 'const'.
677 nw="$nw -Wwrite-strings"
680 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
683 AC_SUBST([WERROR_CFLAGS])
685 nw="$nw -Waggregate-return" # anachronistic
686 nw="$nw -Wlong-long" # C90 is anachronistic
687 nw="$nw -Wc++-compat" # We don't care about C++ compilers
688 nw="$nw -Wundef" # Warns on '#if GNULIB_FOO' etc in gnulib
689 nw="$nw -Wtraditional" # Warns on #elif which we use often
690 nw="$nw -Wcast-qual" # Too many warnings for now
691 nw="$nw -Wconversion" # Too many warnings for now
692 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
693 nw="$nw -Wsign-conversion" # Too many warnings for now
694 nw="$nw -Woverlength-strings" # Not a problem these days
695 nw="$nw -Wtraditional-conversion" # Too many warnings for now
696 nw="$nw -Wunreachable-code" # so buggy that it's now silently ignored
697 nw="$nw -Wpadded" # Our structs are not padded
698 nw="$nw -Wredundant-decls" # we regularly (re)declare functions
699 nw="$nw -Wlogical-op" # any use of fwrite provokes this
700 nw="$nw -Wformat-nonliteral" # we do this a lot
701 nw="$nw -Wvla" # warnings in gettext.h
702 nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
703 nw="$nw -Wswitch-enum" # Too many warnings for now
704 nw="$nw -Wswitch-default" # Too many warnings for now
705 nw="$nw -Wfloat-equal" # warns about high-quality code
706 nw="$nw -Winline" # OK to ignore 'inline'
707 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
708 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
709 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
711 # Emacs doesn't care about shadowing; see
712 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
715 # The following lines should be removable at some point.
716 nw="$nw -Wstack-protector"
717 nw="$nw -Wstrict-overflow"
718 nw="$nw -Wsuggest-attribute=pure"
720 gl_MANYWARN_ALL_GCC([ws])
721 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
725 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
726 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
727 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
728 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
729 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
730 gl_WARN_ADD([-Wno-format-nonliteral])
732 # In spite of excluding -Wlogical-op above, it is enabled, as of
733 # gcc 4.5.0 20090517.
734 gl_WARN_ADD([-Wno-logical-op])
736 gl_WARN_ADD([-fdiagnostics-show-option])
737 gl_WARN_ADD([-funit-at-a-time])
739 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
740 AH_VERBATIM([FORTIFY_SOURCE],
741 [/* Enable compile-time and run-time bounds-checking, and some warnings,
742 without upsetting glibc 2.15+. */
743 #if defined __OPTIMIZE__ && __OPTIMIZE__
744 # define _FORTIFY_SOURCE 2
747 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
749 # We use a slightly smaller set of warning options for lib/.
750 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
752 nw="$nw -Wunused-macros"
754 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
755 AC_SUBST([GNULIB_WARN_CFLAGS])
760 dnl Some other nice autoconf tests.
761 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
764 dnl if test "x$RANLIB" = x; then
769 AC_PATH_PROG(INSTALL_INFO, install-info, :,
770 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
771 dnl Don't use GZIP, which is used by gzip for additional parameters.
772 AC_PATH_PROG(GZIP_PROG, gzip)
774 if test $opsys = gnu-linux; then
775 AC_PATH_PROG(PAXCTL, paxctl,,
776 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
777 if test "X$PAXCTL" != X; then
778 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
779 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
780 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
781 else AC_MSG_RESULT(no); PAXCTL=""; fi])
785 ## Need makeinfo >= 4.7 (?) to build the manuals.
786 AC_PATH_PROG(MAKEINFO, makeinfo, no)
787 dnl By this stage, configure has already checked for egrep and set EGREP,
788 dnl or exited with an error if no egrep was found.
789 if test "$MAKEINFO" != "no" && \
790 test x"`$MAKEINFO --version 2> /dev/null | $EGREP 'texinfo[[^0-9]]*([[1-4]][[0-9]]+|[[5-9]]|4\.[[7-9]]|4\.[[1-6]][[0-9]]+)'`" = x; then
794 ## Makeinfo is unusual. For a released Emacs, the manuals are
795 ## pre-built, and not deleted by the normal clean rules. makeinfo is
796 ## therefore in the category of "special tools" not normally required, which
797 ## configure does not have to check for (eg autoconf itself).
798 ## In a Bazaar checkout on the other hand, the manuals are not included.
799 ## So makeinfo is a requirement to build from Bazaar, and configure
800 ## should test for it as it does for any other build requirement.
801 ## We use the presence of $srcdir/info/emacs to distinguish a release,
802 ## with pre-built manuals, from a Bazaar checkout.
805 if test "$MAKEINFO" = "no"; then
807 if test "x${with_makeinfo}" = "xno"; then
809 elif test ! -e $srcdir/info/emacs; then
810 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
811 source tree does not seem to have pre-built manuals in the `info' directory.
812 Either install a suitable version of makeinfo, or re-run configure
813 with the `--without-makeinfo' option to build without the manuals.] )
816 AC_SUBST(HAVE_MAKEINFO)
818 dnl Just so that there is only a single place we need to edit.
824 dnl Add our options to ac_link now, after it is set up.
826 if test x$GCC = xyes; then
827 test "x$GCC_LINK_TEST_OPTIONS" != x && \
828 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
830 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
831 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
834 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
835 dnl If we can link with the flag, it shouldn't do any harm anyhow.
836 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
837 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
838 dnl if not built to support GNU ld.
840 late_LDFLAGS=$LDFLAGS
841 if test x$GCC = xyes; then
842 LDFLAGS="$LDFLAGS -Wl,-znocombreloc"
844 LDFLAGS="$LDFLAGS -znocombreloc"
847 AC_MSG_CHECKING([for -znocombreloc])
848 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
849 [AC_MSG_RESULT(yes)],
850 LDFLAGS=$late_LDFLAGS
854 dnl The function dump-emacs will not be defined and temacs will do
855 dnl (load "loadup") automatically unless told otherwise.
856 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
858 your-opsys-here) CANNOT_DUMP=yes ;;
861 test "$CANNOT_DUMP" = "yes" && \
862 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
864 AC_SUBST(CANNOT_DUMP)
869 # MSDOS uses unexcoff.o
870 # MSWindows uses unexw32.o
878 UNEXEC_OBJ=unexmacosx.o
881 UNEXEC_OBJ=unexhp9k800.o
884 # Use the Solaris dldump() function, called from unexsol.c, to dump
885 # emacs, instead of the generic ELF dump code found in unexelf.c.
886 # The resulting binary has a complete symbol table, and is better
887 # for debugging and other observability tools (debuggers, pstack, etc).
889 # If you encounter a problem using dldump(), please consider sending
890 # a message to the OpenSolaris tools-linking mailing list:
891 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
893 # It is likely that dldump() works with older Solaris too, but this has
894 # not been tested, so for now this change is for Solaris 10 or newer.
902 ## Let `ld' find image libs and similar things in /usr/local/lib.
903 ## The system compiler, GCC, has apparently been modified to not
904 ## look there, contrary to what a stock GCC would do.
905 ### It's not our place to do this. See bug#10313#17.
906 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
911 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
912 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
916 ### It's not our place to do this. See bug#10313#17.
917 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
922 ## Han Boetes <han@mijncomputer.nl> says this is necessary,
923 ## otherwise Emacs dumps core on elf systems.
924 LD_SWITCH_SYSTEM="-Z"
927 AC_SUBST(LD_SWITCH_SYSTEM)
929 ac_link="$ac_link $LD_SWITCH_SYSTEM"
931 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
932 ## which has not been defined yet. When this was handled with cpp,
933 ## it was expanded to null when configure sourced the s/*.h file.
934 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
935 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
936 ## (or somesuch), but because it is supposed to go at the _front_
937 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
938 ## Compare with the gnu-linux case below, which added to the end
939 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
940 ## LD_SWITCH_SYSTEM_TEMACS.
943 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
950 AC_CHECK_DECL([__ELF__])
951 if test "$ac_cv_have_decl___ELF__" = "yes"; then
952 ## With ELF, make sure that all common symbols get allocated to in the
953 ## data section. Otherwise, the dump of temacs may miss variables in
954 ## the shared library that have been initialized. For example, with
955 ## GNU libc, __malloc_initialized would normally be resolved to the
956 ## shared library's .bss section, which is fatal.
957 if test "x$GCC" = "xyes"; then
958 C_SWITCH_MACHINE="-fno-common"
960 AC_MSG_ERROR([What gives? Fix me if DEC Unix supports ELF now.])
963 UNEXEC_OBJ=unexalpha.o
967 AC_SUBST(C_SWITCH_MACHINE)
972 ## Some programs in src produce warnings saying certain subprograms
973 ## are too complex and need a MAXMEM value greater than 2000 for
974 ## additional optimization. --nils@exp-math.uni-essen.de
975 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
976 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
977 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
978 ## It is redundant in glibc2, since we define _GNU_SOURCE.
979 AC_SUBST(C_SWITCH_SYSTEM)
984 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
985 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
987 freebsd) LIBS_SYSTEM="-lutil" ;;
989 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
991 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
993 ## Motif needs -lgen.
994 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
996 AC_SUBST(LIBS_SYSTEM)
999 ### Make sure subsequent tests use flags consistent with the build flags.
1001 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1002 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1004 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1007 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C89 or better.
1008 AC_DEFUN([AC_TYPE_SIZE_T])
1009 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1010 AC_DEFUN([AC_TYPE_UID_T])
1016 dnl Current possibilities handled by sed (aix4-2 -> aix,
1017 dnl gnu-linux -> gnu/linux, etc.):
1018 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1019 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1020 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1022 dnl NB do not use CRT_DIR unquoted here, since it might not be set yet.
1026 START_FILES='pre-crt0.o'
1029 ## Adding -lm confuses the dynamic linker, so omit it.
1031 START_FILES='pre-crt0.o'
1034 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtn.o'
1035 START_FILES='pre-crt0.o $(CRT_DIR)/crt1.o $(CRT_DIR)/crti.o'
1036 SYSTEM_TYPE=berkeley-unix
1038 gnu-linux | gnu-kfreebsd )
1039 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtn.o'
1040 START_FILES='pre-crt0.o $(CRT_DIR)/crt1.o $(CRT_DIR)/crti.o'
1042 hpux10-20 | hpux11 )
1044 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o'
1046 dnl NB this may be adjusted below.
1048 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o'
1049 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o $(CRT_DIR)/crtbegin.o'
1050 SYSTEM_TYPE=berkeley-unix
1054 SYSTEM_TYPE=usg-unix-v
1060 AC_SUBST(START_FILES)
1061 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1062 [The type of system you are compiling for; sets `system-type'.])
1064 dnl Not all platforms use crtn.o files. Check if the current one does.
1067 for file in x $LIB_STANDARD $START_FILES; do
1069 *CRT_DIR*) crt_files="$crt_files `echo $file | sed -e 's|.*/||'`" ;;
1073 if test "x$crt_files" != x; then
1075 ## If user specified a crt-dir, use that unconditionally.
1078 if test "X$CRT_DIR" = "X"; then
1080 CRT_DIR=/usr/lib # default
1082 case "$canonical" in
1083 x86_64-*-linux-gnu* | s390x-*-linux-gnu*)
1084 ## On x86-64 and s390x GNU/Linux distributions, the standard library
1085 ## can be in a variety of places. We only try /usr/lib64 and /usr/lib.
1086 ## For anything else (eg /usr/lib32), it is up the user to specify
1087 ## the location (bug#5655).
1088 ## Test for crtn.o, not just the directory, because sometimes the
1089 ## directory exists but does not have the relevant files (bug#1287).
1090 ## FIXME better to test for binary compatibility somehow.
1091 test -e /usr/lib64/crtn.o && CRT_DIR=/usr/lib64
1094 powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*) CRT_DIR=/usr/lib64 ;;
1098 hpux10-20) CRT_DIR=/lib ;;
1101 test "x${GCC}" = xyes && crt_gcc=yes
1107 for file in $crt_files; do
1109 ## If we're using gcc, try to determine it automatically by asking
1110 ## gcc. [If this doesn't work, CRT_DIR will remain at the
1111 ## system-dependent default from above.]
1112 if test $crt_gcc = yes && test ! -e $CRT_DIR/$file; then
1114 crt_file=`$CC --print-file-name=$file 2>/dev/null`
1117 CRT_DIR=`AS_DIRNAME(["$crt_file"])`
1122 dnl We expect all the files to be in a single directory, so after the
1123 dnl first there is no point asking gcc.
1126 test -e $CRT_DIR/$file || crt_missing="$crt_missing $file"
1129 test "x$crt_missing" = x || \
1130 AC_MSG_ERROR([Required file(s) not found:$crt_missing
1131 Try using the --with-crt-dir option.])
1133 fi # crt_files != ""
1139 if test -f $CRT_DIR/crti.o; then
1141 test -f $CRT_DIR/crtn.o || \
1142 AC_MSG_ERROR([Required file not found: crtn.o])
1144 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o $(CRT_DIR)/crtn.o'
1145 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o $(CRT_DIR)/crti.o $(CRT_DIR)/crtbegin.o'
1151 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1152 pre_PKG_CONFIG_LIBS=$LIBS
1154 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
1156 dnl This function definition taken from Gnome 2.0
1157 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
1158 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
1159 dnl also defines GSTUFF_PKG_ERRORS on error
1160 AC_DEFUN([PKG_CHECK_MODULES], [
1163 if test "$PKG_CONFIG" = "no" ; then
1164 ifelse([$4], , [AC_MSG_ERROR([
1165 *** The pkg-config script could not be found. Make sure it is in your path, or give the full path to pkg-config with the PKG_CONFIG environment variable or --with-pkg-config-prog. Or see http://www.freedesktop.org/software/pkgconfig to get pkg-config.])], [$4])
1167 PKG_CONFIG_MIN_VERSION=0.9.0
1168 if $PKG_CONFIG --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
1169 AC_MSG_CHECKING(for $2)
1171 if $PKG_CONFIG --exists "$2" 2>&AS_MESSAGE_LOG_FD &&
1172 $1_CFLAGS=`$PKG_CONFIG --cflags "$2" 2>&AS_MESSAGE_LOG_FD` &&
1173 $1_LIBS=`$PKG_CONFIG --libs "$2" 2>&AS_MESSAGE_LOG_FD`; then
1180 $1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1181 $1_LIBS=`AS_ECHO(["$$1_LIBS"]) | sed -e 's,///*,/,g'`
1182 AC_MSG_RESULT([yes CFLAGS='$$1_CFLAGS' LIBS='$$1_LIBS'])
1188 ## If we have a custom action on failure, don't print errors, but
1189 ## do set a variable so people can do so. Do it in a subshell
1190 ## to capture any diagnostics in invoking pkg-config.
1191 $1_PKG_ERRORS=`($PKG_CONFIG --print-errors "$2") 2>&1`
1192 ifelse([$4], ,echo "$$1_PKG_ERRORS",)
1198 echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
1199 echo "*** See http://www.freedesktop.org/software/pkgconfig"
1203 if test $succeeded = yes; then
1204 ifelse([$3], , :, [$3])
1206 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])
1211 if test "${with_sound}" != "no"; then
1212 # Sound support for GNU/Linux and the free BSDs.
1213 AC_CHECK_HEADERS(machine/soundcard.h sys/soundcard.h soundcard.h,
1214 have_sound_header=yes)
1215 # Emulation library used on NetBSD.
1216 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1220 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1221 PKG_CHECK_MODULES(ALSA, $ALSA_MODULES, HAVE_ALSA=yes, HAVE_ALSA=no)
1222 if test $HAVE_ALSA = yes; then
1223 SAVE_CFLAGS="$CFLAGS"
1225 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1226 LIBS="$ALSA_LIBS $LIBS"
1227 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1228 emacs_alsa_normal=yes,
1229 emacs_alsa_normal=no)
1230 if test "$emacs_alsa_normal" != yes; then
1231 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1232 [[snd_lib_error_set_handler (0);]])],
1233 emacs_alsa_subdir=yes,
1234 emacs_alsa_subdir=no)
1235 if test "$emacs_alsa_subdir" != yes; then
1236 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1238 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1241 CFLAGS="$SAVE_CFLAGS"
1243 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1244 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1245 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1248 dnl Define HAVE_SOUND if we have sound support. We know it works and
1249 dnl compiles only on the specified platforms. For others, it
1250 dnl probably doesn't make sense to try.
1251 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1253 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1254 gnu-linux|freebsd|netbsd)
1255 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1260 AC_SUBST(CFLAGS_SOUND)
1263 dnl checks for header files
1264 AC_CHECK_HEADERS_ONCE(
1265 linux/version.h sys/systeminfo.h
1266 stdio_ext.h fcntl.h coff.h pty.h
1267 sys/vlimit.h sys/resource.h
1268 sys/utsname.h pwd.h utmp.h dirent.h util.h)
1270 AC_MSG_CHECKING(if personality LINUX32 can be set)
1271 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1272 emacs_cv_personality_linux32=yes,
1273 emacs_cv_personality_linux32=no)
1274 AC_MSG_RESULT($emacs_cv_personality_linux32)
1276 if test $emacs_cv_personality_linux32 = yes; then
1277 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1278 [Define to 1 if personality LINUX32 can be set.])
1281 dnl On Solaris 8 there's a compilation warning for term.h because
1282 dnl it doesn't define `bool'.
1283 AC_CHECK_HEADERS(term.h, , , -)
1285 AC_CHECK_DECLS([sys_siglist])
1286 if test $ac_cv_have_decl_sys_siglist != yes; then
1287 # For Tru64, at least:
1288 AC_CHECK_DECLS([__sys_siglist])
1289 if test $ac_cv_have_decl___sys_siglist = yes; then
1290 AC_DEFINE(sys_siglist, __sys_siglist,
1291 [Define to any substitute for sys_siglist.])
1296 dnl Check for speed_t typedef.
1297 AC_CACHE_CHECK(for speed_t, emacs_cv_speed_t,
1298 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <termios.h>]], [[speed_t x = 1;]])],
1299 emacs_cv_speed_t=yes, emacs_cv_speed_t=no)])
1300 if test $emacs_cv_speed_t = yes; then
1301 AC_DEFINE(HAVE_SPEED_T, 1,
1302 [Define to 1 if `speed_t' is declared by <termios.h>.])
1305 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1306 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1307 #if HAVE_SYS_SOCKET_H
1308 #include <sys/socket.h>
1310 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1311 #if HAVE_SYS_SOCKET_H
1312 #include <sys/socket.h>
1314 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1315 #if HAVE_SYS_SOCKET_H
1316 #include <sys/socket.h>
1319 dnl checks for structure members
1320 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1321 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1322 struct ifreq.ifr_addr,
1323 struct ifreq.ifr_addr.sa_len], , ,
1324 [AC_INCLUDES_DEFAULT
1325 #if HAVE_SYS_SOCKET_H
1326 #include <sys/socket.h>
1332 dnl Check for endianness.
1333 dnl AC_C_BIGENDIAN is done by gnulib.
1335 dnl check for Make feature
1336 dnl AC_PROG_MAKE_SET is done by Automake.
1341 dnl check for GNU Make if we have GCC and autodepend is on.
1342 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1343 AC_MSG_CHECKING([whether we are using GNU Make])
1345 testval=`${MAKE-make} --version 2>/dev/null | grep 'GNU Make'`
1346 if test "x$testval" != x; then
1349 ac_enable_autodepend=no
1351 AC_MSG_RESULT([$HAVE_GNU_MAKE])
1352 if test $HAVE_GNU_MAKE = yes; then
1353 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1354 SAVE_CFLAGS="$CFLAGS"
1355 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1356 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1357 CFLAGS="$SAVE_CFLAGS"
1358 test -f deps.d || ac_enable_autodepend=no
1360 AC_MSG_RESULT([$ac_enable_autodepend])
1362 if test $ac_enable_autodepend = yes; then
1363 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1364 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1365 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1366 deps_frag=autodeps.mk
1369 deps_frag=$srcdir/src/$deps_frag
1372 AC_SUBST_FILE(deps_frag)
1375 lisp_frag=$srcdir/src/lisp.mk
1376 AC_SUBST_FILE(lisp_frag)
1379 dnl checks for operating system services
1380 AC_SYS_LONG_FILE_NAMES
1382 #### Choose a window system.
1384 ## We leave window_system equal to none if
1385 ## we end up building without one. Any new window system should
1386 ## set window_system to an appropriate value and add objects to
1387 ## window-system-specific substs.
1391 if test "$no_x" != yes; then
1395 LD_SWITCH_X_SITE_RPATH=
1396 if test "${x_libraries}" != NONE; then
1397 if test -n "${x_libraries}"; then
1398 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1399 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1401 x_default_search_path=""
1402 x_search_path=${x_libraries}
1403 if test -z "${x_search_path}"; then
1404 x_search_path=/usr/lib
1406 for x_library in `echo ${x_search_path}: | \
1407 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1409 ${x_library}/X11/%L/%T/%N%C%S:\
1410 ${x_library}/X11/%l/%T/%N%C%S:\
1411 ${x_library}/X11/%T/%N%C%S:\
1412 ${x_library}/X11/%L/%T/%N%S:\
1413 ${x_library}/X11/%l/%T/%N%S:\
1414 ${x_library}/X11/%T/%N%S"
1415 if test x"${x_default_search_path}" = x; then
1416 x_default_search_path=${x_search_path}
1418 x_default_search_path="${x_search_path}:${x_default_search_path}"
1422 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1424 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1425 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1428 if test x"${x_includes}" = x; then
1429 bitmapdir=/usr/include/X11/bitmaps
1431 # accumulate include directories that have X11 bitmap subdirectories
1433 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1434 if test -d "${bmd}/X11/bitmaps"; then
1435 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1437 if test -d "${bmd}/bitmaps"; then
1438 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1441 if test ${bmd_acc} != "dummyval"; then
1442 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1449 tmp_CPPFLAGS="$CPPFLAGS"
1450 tmp_CFLAGS="$CFLAGS"
1451 CPPFLAGS="$CPPFLAGS -x objective-c"
1452 CFLAGS="$CFLAGS -x objective-c"
1453 TEMACS_LDFLAGS2="\${LDFLAGS}"
1455 if test "${with_ns}" != no; then
1456 if test "${opsys}" = darwin; then
1458 ns_appdir=`pwd`/nextstep/Emacs.app
1459 ns_appbindir=${ns_appdir}/Contents/MacOS
1460 ns_appresdir=${ns_appdir}/Contents/Resources
1461 ns_appsrc=Cocoa/Emacs.base
1462 elif test -f $GNUSTEP_CONFIG_FILE; then
1464 ns_appdir=`pwd`/nextstep/Emacs.app
1465 ns_appbindir=${ns_appdir}
1466 ns_appresdir=${ns_appdir}/Resources
1467 ns_appsrc=GNUstep/Emacs.base
1468 dnl FIXME sourcing this several times in subshells seems inefficient.
1469 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1470 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1471 dnl I seemed to need these as well with GNUstep-startup 0.25.
1472 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1473 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1474 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1475 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1476 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1477 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1478 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1479 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1480 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1484 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1485 dnl If they had chosen to either define it or not, we could have
1486 dnl just used AC_CHECK_DECL here.
1487 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1488 emacs_cv_objc_exceptions,
1489 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1490 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1494 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1495 if test $emacs_cv_objc_exceptions = yes; then
1496 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1497 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1498 [Define if GNUstep uses ObjC exceptions.])
1499 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1503 dnl This is only used while we test the NS headers, it gets reset below.
1504 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1506 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1507 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1508 files are missing or cannot be compiled.])])
1509 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1511 ns_have_nsinteger=yes,
1512 ns_have_nsinteger=no)
1513 if test $ns_have_nsinteger = yes; then
1514 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1517 AC_SUBST(TEMACS_LDFLAGS2)
1519 INSTALL_ARCH_INDEP_EXTRA=install-etc
1520 ns_self_contained=no
1523 if test "${HAVE_NS}" = yes; then
1524 if test "$with_toolkit_scroll_bars" = "no"; then
1525 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1528 window_system=nextstep
1529 # set up packaging dirs
1530 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1531 ns_self_contained=yes
1532 prefix=${ns_appresdir}
1533 exec_prefix=${ns_appbindir}
1534 dnl This one isn't really used, only archlibdir is.
1535 libexecdir="\${ns_appbindir}/libexec"
1536 archlibdir="\${ns_appbindir}/libexec"
1537 docdir="\${ns_appresdir}/etc"
1538 etcdir="\${ns_appresdir}/etc"
1539 dnl FIXME maybe set datarootdir instead.
1540 dnl That would also get applications, icons, man.
1541 infodir="\${ns_appresdir}/info"
1542 mandir="\${ns_appresdir}/man"
1543 lispdir="\${ns_appresdir}/lisp"
1544 leimdir="\${ns_appresdir}/leim"
1545 INSTALL_ARCH_INDEP_EXTRA=
1547 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o"
1549 CFLAGS="$tmp_CFLAGS"
1550 CPPFLAGS="$tmp_CPPFLAGS"
1551 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1552 AC_SUBST(ns_self_contained)
1554 AC_SUBST(NS_OBJC_OBJ)
1555 AC_SUBST(LIB_STANDARD)
1557 ## $window_system is now set to the window system we will
1565 case "${window_system}" in
1570 case "${with_x_toolkit}" in
1571 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1572 motif ) USE_X_TOOLKIT=MOTIF ;;
1574 term_header=gtkutil.h
1575 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1576 dnl USE_X_TOOLKIT is set.
1577 USE_X_TOOLKIT=none ;;
1578 gtk2 ) with_gtk2=yes
1579 term_header=gtkutil.h
1580 USE_X_TOOLKIT=none ;;
1581 gtk3 ) with_gtk3=yes
1582 term_header=gtkutil.h
1583 USE_X_TOOLKIT=none ;;
1584 no ) USE_X_TOOLKIT=none ;;
1585 dnl If user did not say whether to use a toolkit, make this decision later:
1586 dnl use the toolkit if we have gtk, or X11R5 or newer.
1587 * ) USE_X_TOOLKIT=maybe ;;
1591 term_header=nsterm.h
1595 if test -n "${term_header}"; then
1596 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
1597 [Define to the header for the built-in window system.])
1600 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1601 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1602 if test "$HAVE_XSERVER" = true ||
1603 test -n "$DISPLAY" ||
1604 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1605 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1606 were found. You should install the relevant development files for X
1607 and for the toolkit you want, such as Gtk+, Lesstif or Motif. Also make
1608 sure you have development files for image handling, i.e.
1609 tiff, gif, jpeg, png and xpm.
1610 If you are sure you want Emacs compiled without X window support, pass
1616 ### If we're using X11, we should use the X menu package.
1619 yes ) HAVE_MENUS=yes ;;
1622 # Does the opsystem file prohibit the use of the GNU malloc?
1623 # Assume not, until told otherwise.
1627 [whether malloc is Doug Lea style],
1628 [emacs_cv_var_doug_lea_malloc],
1631 [[#include <malloc.h>
1632 static void hook (void) {}]],
1633 [[malloc_set_state (malloc_get_state ());
1634 __after_morecore_hook = hook;
1635 __malloc_initialize_hook = hook;]])],
1636 [emacs_cv_var_doug_lea_malloc=yes],
1637 [emacs_cv_var_doug_lea_malloc=no])])
1638 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1641 dnl See comments in aix4-2.h about maybe using system malloc there.
1644 ## darwin ld insists on the use of malloc routines in the System framework.
1645 darwin|sol2-10) system_malloc=yes ;;
1648 if test "${system_malloc}" = "yes"; then
1649 AC_DEFINE(SYSTEM_MALLOC, 1, [Define to use system malloc.])
1652 (The GNU allocators don't work with this system configuration.)"
1656 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1657 VMLIMIT_OBJ=vm-limit.o
1659 AC_SUBST(GMALLOC_OBJ)
1660 AC_SUBST(VMLIMIT_OBJ)
1662 if test "$doug_lea_malloc" = "yes" ; then
1663 if test "$GNU_MALLOC" = yes ; then
1665 (Using Doug Lea's new malloc from the GNU C Library.)"
1667 AC_DEFINE(DOUG_LEA_MALLOC, 1,
1668 [Define to 1 if you are using the GNU C Library.])
1670 ## Use mmap directly for allocating larger buffers.
1671 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
1672 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
1673 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
1675 gnu*) REL_ALLOC=no ;;
1679 if test x"${REL_ALLOC}" = x; then
1680 REL_ALLOC=${GNU_MALLOC}
1683 use_mmap_for_buffers=no
1685 cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
1689 if test $use_mmap_for_buffers = yes; then
1690 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
1694 LIBS="$LIBS_SYSTEM $LIBS"
1696 dnl If found, this defines HAVE_LIBDNET, which m/pmax.h checks,
1697 dnl and also adds -ldnet to LIBS, which Autoconf uses for checks.
1698 AC_CHECK_LIB(dnet, dnet_ntoa)
1699 dnl This causes -lresolv to get used in subsequent tests,
1700 dnl which causes failures on some systems such as HPUX 9.
1701 dnl AC_CHECK_LIB(resolv, gethostbyname)
1703 dnl FIXME replace main with a function we actually want from this library.
1704 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
1706 dnl Check if pthreads is available.
1708 AC_CHECK_HEADERS_ONCE(pthread.h)
1709 if test "$ac_cv_header_pthread_h"; then
1710 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
1711 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
1712 dnl testing for pthread_self if Emacs uses gmalloc.c.
1713 if test "$GMALLOC_OBJ" = gmalloc.o; then
1714 emacs_pthread_function=pthread_atfork
1716 emacs_pthread_function=pthread_self
1718 AC_CHECK_LIB(pthread, $emacs_pthread_function, HAVE_PTHREAD=yes)
1720 if test "$HAVE_PTHREAD" = yes; then
1721 case "${canonical}" in
1723 *) LIB_PTHREAD="-lpthread"
1724 LIBS="$LIB_PTHREAD $LIBS" ;;
1726 AC_DEFINE(HAVE_PTHREAD, 1, [Define to 1 if you have pthread (-lpthread).])
1728 AC_SUBST([LIB_PTHREAD])
1730 AC_CHECK_LIB(pthreads, cma_open)
1732 ## Note: when using cpp in s/aix4.2.h, this definition depended on
1733 ## HAVE_LIBPTHREADS. That was not defined earlier in configure when
1734 ## the system file was sourced. Hence the value of LIBS_SYSTEM
1735 ## added to LIBS in configure would never contain the pthreads part,
1736 ## but the value used in Makefiles might. FIXME?
1738 ## -lpthreads seems to be necessary for Xlib in X11R6, and should
1739 ## be harmless on older versions of X where it happens to exist.
1740 test "$opsys" = "aix4-2" && \
1741 test $ac_cv_lib_pthreads_cma_open = yes && \
1742 LIBS_SYSTEM="$LIBS_SYSTEM -lpthreads"
1744 dnl Check for need for bigtoc support on IBM AIX
1748 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1750 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1751 *) gdb_cv_bigtoc=-bbigtoc ;;
1754 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1755 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
1760 # Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
1761 # used for the tests that follow. We set them back to REAL_CFLAGS and
1762 # REAL_CPPFLAGS later on.
1764 REAL_CFLAGS="$CFLAGS"
1765 REAL_CPPFLAGS="$CPPFLAGS"
1767 if test "${HAVE_X11}" = "yes"; then
1768 DEFS="$C_SWITCH_X_SITE $DEFS"
1769 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
1771 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
1772 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
1774 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
1775 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
1776 # but it's more convenient here to set LD_RUN_PATH since this
1777 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
1778 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
1779 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
1783 if test "${opsys}" = "gnu-linux"; then
1784 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
1785 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1786 [[XOpenDisplay ("foo");]])],
1787 [xgnu_linux_first_failure=no],
1788 [xgnu_linux_first_failure=yes])
1789 if test "${xgnu_linux_first_failure}" = "yes"; then
1790 OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
1791 OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
1792 OLD_CPPFLAGS="$CPPFLAGS"
1794 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
1795 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
1796 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
1797 LIBS="$LIBS -b i486-linuxaout"
1798 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1799 [[XOpenDisplay ("foo");]])],
1800 [xgnu_linux_second_failure=no],
1801 [xgnu_linux_second_failure=yes])
1802 if test "${xgnu_linux_second_failure}" = "yes"; then
1803 # If we get the same failure with -b, there is no use adding -b.
1804 # So take it out. This plays safe.
1805 LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
1806 C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
1807 CPPFLAGS="$OLD_CPPFLAGS"
1818 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
1819 # header files included from there.
1820 AC_MSG_CHECKING(for Xkb)
1821 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
1822 #include <X11/XKBlib.h>]],
1823 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
1824 emacs_xkb=yes, emacs_xkb=no)
1825 AC_MSG_RESULT($emacs_xkb)
1826 if test $emacs_xkb = yes; then
1827 AC_DEFINE(HAVE_XKBGETKEYBOARD, 1, [Define to 1 if you have the XkbGetKeyboard function.])
1830 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
1831 XScreenNumberOfScreen)
1834 if test "${window_system}" = "x11"; then
1835 AC_MSG_CHECKING(X11 version 6)
1836 AC_CACHE_VAL(emacs_cv_x11_version_6,
1837 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
1838 [[#if XlibSpecificationRelease < 6
1841 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
1842 if test $emacs_cv_x11_version_6 = yes; then
1843 AC_MSG_RESULT(6 or newer)
1844 AC_DEFINE(HAVE_X11R6, 1,
1845 [Define to 1 if you have the X11R6 or newer version of Xlib.])
1846 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
1847 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
1851 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
1852 [Define if you have usable X11R6-style XIM support.])
1856 AC_MSG_RESULT(before 6)
1861 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
1863 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes"; then
1864 if test "${with_rsvg}" != "no"; then
1865 RSVG_REQUIRED=2.11.0
1866 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
1868 PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, HAVE_RSVG=yes, :)
1869 AC_SUBST(RSVG_CFLAGS)
1872 if test $HAVE_RSVG = yes; then
1873 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
1874 CFLAGS="$CFLAGS $RSVG_CFLAGS"
1875 LIBS="$RSVG_LIBS $LIBS"
1881 if test "${HAVE_X11}" = "yes"; then
1882 if test "${with_imagemagick}" != "no"; then
1883 ## 6.2.8 is the earliest version known to work, but earlier versions
1884 ## might work - let us know if you find one.
1885 ## 6.0.7 does not work. See bug#7955.
1886 IMAGEMAGICK_MODULE="Wand >= 6.2.8"
1887 PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
1888 AC_SUBST(IMAGEMAGICK_CFLAGS)
1889 AC_SUBST(IMAGEMAGICK_LIBS)
1891 if test $HAVE_IMAGEMAGICK = yes; then
1892 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
1893 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
1894 LIBS="$IMAGEMAGICK_LIBS $LIBS"
1895 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
1905 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
1908 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1910 dnl Checks for libraries.
1911 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1912 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
1913 AC_MSG_ERROR($GTK_PKG_ERRORS)
1915 if test "$pkg_check_gtk" = "yes"; then
1916 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
1917 GTK_OBJ=emacsgtkfixed.o
1918 term_header=gtkutil.h
1919 USE_GTK_TOOLKIT="GTK3"
1922 gtk3_pkg_errors="$GTK_PKG_ERRORS "
1926 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
1929 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1931 dnl Checks for libraries.
1932 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1933 if test "$pkg_check_gtk" = "no" &&
1934 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
1936 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
1938 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
1941 if test x"$pkg_check_gtk" = xyes; then
1943 AC_SUBST(GTK_CFLAGS)
1945 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
1946 CFLAGS="$CFLAGS $GTK_CFLAGS"
1947 LIBS="$GTK_LIBS $LIBS"
1948 dnl Try to compile a simple GTK program.
1950 AC_CHECK_FUNCS(gtk_main, GTK_COMPILES=yes)
1951 if test "${GTK_COMPILES}" != "yes"; then
1952 if test "$USE_X_TOOLKIT" != "maybe"; then
1953 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
1957 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
1958 GTK_OBJ="gtkutil.o $GTK_OBJ"
1960 if $PKG_CONFIG --atleast-version=2.10 gtk+-2.0; then
1963 AC_MSG_WARN([[Your version of Gtk+ will have problems with
1964 closing open displays. This is no problem if you just use
1965 one display, but if you use more than one and close one of them
1975 if test "${HAVE_GTK}" = "yes"; then
1977 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
1978 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
1979 if test "$with_toolkit_scroll_bars" != no; then
1980 with_toolkit_scroll_bars=yes
1983 dnl Check if we have the old file selection dialog declared and
1984 dnl in the link library. In 2.x it may be in the library,
1985 dnl but not declared if deprecated featured has been selected out.
1986 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
1987 HAVE_GTK_FILE_SELECTION=no
1988 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
1989 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
1990 #include <gtk/gtk.h>])
1991 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
1992 AC_CHECK_FUNCS(gtk_file_selection_new)
1996 dnl Check for functions introduced in 2.14 and later.
1997 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
1998 gtk_dialog_get_action_area gtk_widget_get_sensitive \
1999 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2000 gtk_orientable_set_orientation \
2001 gtk_window_set_has_resize_grip)
2003 term_header=gtkutil.h
2013 if test "${with_xwidgets}" != "no"; then
2014 echo "xwidgets enabled, checking webkit, and others"
2016 AC_DEFINE(HAVE_XWIDGETS, 1, [Define to 1 if you have xwidgets support.])
2019 # - enable only if gtk/gtk3 enabled
2020 # - webkit, goocanvas, clutter
2021 # - only webkit_osr is good so remove plain webkit laterish
2023 #webkit version for gtk3.
2024 WEBKIT_REQUIRED=1.4.0
2025 WEBKIT_MODULES="webkitgtk-3.0 >= $WEBKIT_REQUIRED"
2027 if test "${with_gtk3}" = "yes"; then
2028 PKG_CHECK_MODULES(WEBKIT, $WEBKIT_MODULES, HAVE_WEBKIT=yes, HAVE_WEBKIT=no)
2029 if test $HAVE_WEBKIT = yes; then
2030 AC_DEFINE(HAVE_WEBKIT_OSR, 1, [Define to 1 if you have webkit_osr support.])
2034 if test "${with_xwdemo}" = "yes"; then
2035 #clutter and goocanvas are just proof of concept so disable for now
2036 CLUTTER_REQUIRED=1.0.0
2037 CLUTTER_MODULES="clutter-gtk-1.0 >= $CLUTTER_REQUIRED"
2039 PKG_CHECK_MODULES(CLUTTER, $CLUTTER_MODULES, HAVE_CLUTTER=yes, HAVE_CLUTTER=no)
2040 if test $HAVE_CLUTTER = yes; then
2041 AC_DEFINE(HAVE_CLUTTER, 1, [Define to 1 if you have clutter support.])
2045 GOOCANVAS_REQUIRED=1.4.0
2046 GOOCANVAS_MODULES="goocanvasgtk-3.0 >= $GOOCANVAS_REQUIRED"
2048 PKG_CHECK_MODULES(GOOCANVAS, $GOOCANVAS_MODULES, HAVE_GOOCANVAS=yes, HAVE_GOOCANVAS=no)
2049 if test $HAVE_GOOCANVAS = yes; then
2050 AC_DEFINE(HAVE_GOOCANVAS, 1, [Define to 1 if you have goocanvas support.])
2055 GIR_MODULES="gobject-introspection-1.0 >= $GIR_REQUIRED"
2056 PKG_CHECK_MODULES(GIR, $GIR_MODULES, HAVE_GIR=yes, HAVE_GIR=no)
2057 if test $HAVE_GIR = yes; then
2058 AC_DEFINE(HAVE_GIR, 1, [Define to 1 if you have GIR support.])
2065 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2066 dnl other platforms.
2069 if test "${with_dbus}" = "yes"; then
2070 PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
2071 if test "$HAVE_DBUS" = yes; then
2072 LIBS="$LIBS $DBUS_LIBS"
2073 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2074 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2075 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2077 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2078 dbus_type_is_valid \
2079 dbus_validate_bus_name \
2080 dbus_validate_path \
2081 dbus_validate_interface \
2082 dbus_validate_member)
2088 dnl GSettings has been tested under GNU/Linux only.
2090 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2091 PKG_CHECK_MODULES(GSETTINGS, gio-2.0 >= 2.26, HAVE_GSETTINGS=yes, HAVE_GSETTINGS=no)
2092 if test "$HAVE_GSETTINGS" = "yes"; then
2093 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2094 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2095 SETTINGS_LIBS="$GSETTINGS_LIBS"
2099 dnl GConf has been tested under GNU/Linux only.
2100 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2102 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2103 PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
2104 if test "$HAVE_GCONF" = yes; then
2105 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2106 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2107 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2108 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2112 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2113 PKG_CHECK_MODULES(GOBJECT, gobject-2.0 >= 2.0, HAVE_GOBJECT=yes, HAVE_GOBJECT=no)
2114 if test "$HAVE_GOBJECT" = "yes"; then
2115 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2116 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2118 SAVE_CFLAGS="$CFLAGS"
2120 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2121 LIBS="$SETTINGS_LIBS $LIBS"
2122 AC_CHECK_FUNCS([g_type_init])
2123 CFLAGS="$SAVE_CFLAGS"
2126 AC_SUBST(SETTINGS_CFLAGS)
2127 AC_SUBST(SETTINGS_LIBS)
2130 dnl SELinux is available for GNU/Linux only.
2133 if test "${with_selinux}" = "yes"; then
2134 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2135 if test "$HAVE_LIBSELINUX" = yes; then
2136 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2137 LIBSELINUX_LIBS=-lselinux
2140 AC_SUBST(LIBSELINUX_LIBS)
2143 HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=no
2144 if test "${with_gnutls}" = "yes" ; then
2145 PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6], HAVE_GNUTLS=yes, HAVE_GNUTLS=no)
2146 if test "${HAVE_GNUTLS}" = "yes"; then
2147 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2150 CFLAGS="$CFLAGS $LIBGNUTLS_CFLAGS"
2151 LIBS="$LIBGNUTLS_LIBS $LIBS"
2152 AC_CHECK_FUNCS(gnutls_certificate_set_verify_function, HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=yes)
2154 if test "${HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY}" = "yes"; then
2155 AC_DEFINE(HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY, 1, [Define if using GnuTLS certificate verification callbacks.])
2159 AC_SUBST(LIBGNUTLS_LIBS)
2160 AC_SUBST(LIBGNUTLS_CFLAGS)
2162 dnl Do not put whitespace before the #include statements below.
2163 dnl Older compilers (eg sunos4 cc) choke on it.
2166 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2167 if test "$with_xaw3d" != no; then
2168 AC_CACHE_VAL(emacs_cv_xaw3d,
2169 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2170 #include <X11/Intrinsic.h>
2171 #include <X11/Xaw3d/Simple.h>]],
2173 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2174 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2175 emacs_cv_xaw3d=no)])
2179 if test $emacs_cv_xaw3d = yes; then
2180 AC_MSG_CHECKING(for xaw3d)
2181 AC_MSG_RESULT([yes; using Lucid toolkit])
2185 AC_DEFINE(HAVE_XAW3D, 1,
2186 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2188 AC_MSG_CHECKING(for xaw3d)
2190 AC_MSG_CHECKING(for libXaw)
2191 AC_CACHE_VAL(emacs_cv_xaw,
2192 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2193 #include <X11/Intrinsic.h>
2194 #include <X11/Xaw/Simple.h>]],
2198 if test $emacs_cv_xaw = yes; then
2199 AC_MSG_RESULT([yes; using Lucid toolkit])
2202 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2203 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2205 AC_MSG_ERROR([No X toolkit could be found.
2206 If you are sure you want Emacs compiled without an X toolkit, pass
2208 to configure. Otherwise, install the development libraries for the toolkit
2209 that you want to use (e.g. Gtk+) and re-run configure.])
2214 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2217 if test "${USE_X_TOOLKIT}" != "none"; then
2218 AC_MSG_CHECKING(X11 toolkit version)
2219 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2220 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2221 [[#if XtSpecificationRelease < 6
2224 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2225 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2226 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2227 AC_MSG_RESULT(6 or newer)
2228 AC_DEFINE(HAVE_X11XTR6, 1,
2229 [Define to 1 if you have the X11R6 or newer version of Xt.])
2230 LIBXTR6="-lSM -lICE"
2232 ## Use libw.a along with X11R6 Xt.
2233 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2236 AC_MSG_RESULT(before 6)
2239 dnl If using toolkit, check whether libXmu.a exists.
2240 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2242 if test x$HAVE_X11XTR6 = xyes; then
2243 LIBS="-lXt -lSM -lICE $LIBS"
2247 AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
2248 test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
2249 dnl ac_cv_lib_Xmu_XmuConvertStandardSelection is also referenced below.
2253 dnl FIXME the logic here seems weird, but this is what cpp was doing.
2254 dnl Why not just test for libxmu in the normal way?
2257 ## These systems don't supply Xmu.
2259 test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
2264 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
2265 if test "${HAVE_X11}" = "yes"; then
2266 if test "${USE_X_TOOLKIT}" != "none"; then
2267 AC_CHECK_LIB(Xext, XShapeQueryExtension)
2272 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2273 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2274 if test -d /usr/include/openmotif; then
2275 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2276 emacs_cv_openmotif=yes
2277 case "$canonical" in
2278 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2279 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2282 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2285 emacs_cv_openmotif=no
2287 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2288 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2289 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2292 Motif version prior to 2.1.
2294 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2295 if test $emacs_cv_motif_version_2_1 = yes; then
2296 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2297 if test x$emacs_cv_openmotif = xyes; then
2298 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2301 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2302 # We put this in CFLAGS temporarily to precede other -I options
2303 # that might be in CFLAGS temporarily.
2304 # We put this in CPPFLAGS where it precedes the other -I options.
2305 OLD_CPPFLAGS=$CPPFLAGS
2307 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2308 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2309 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2311 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2312 if test $emacs_cv_lesstif = yes; then
2313 # Make sure this -I option remains in CPPFLAGS after it is set
2314 # back to REAL_CPPFLAGS.
2315 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2316 # have those other -I options anyway. Ultimately, having this
2317 # directory ultimately in CPPFLAGS will be enough.
2318 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2319 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2322 CPPFLAGS=$OLD_CPPFLAGS
2325 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2326 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2329 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2330 dnl using Motif or Xaw3d is available, and unless
2331 dnl --with-toolkit-scroll-bars=no was specified.
2333 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2334 [Define to 1 if we should use toolkit scroll bars.])dnl
2335 USE_TOOLKIT_SCROLL_BARS=no
2336 if test "${with_toolkit_scroll_bars}" != "no"; then
2337 if test "${USE_X_TOOLKIT}" != "none"; then
2338 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2339 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2341 USE_TOOLKIT_SCROLL_BARS=yes
2342 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2343 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2344 USE_TOOLKIT_SCROLL_BARS=yes
2346 elif test "${HAVE_GTK}" = "yes"; then
2347 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2348 USE_TOOLKIT_SCROLL_BARS=yes
2349 elif test "${HAVE_NS}" = "yes"; then
2350 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2351 USE_TOOLKIT_SCROLL_BARS=yes
2355 dnl See if XIM is available.
2356 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2357 #include <X11/Xlib.h>
2358 #include <X11/Xresource.h>]],
2359 [[XIMProc callback;]])],
2361 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2364 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2366 if test "${with_xim}" != "no"; then
2367 AC_DEFINE(USE_XIM, 1,
2368 [Define to 1 if we should use XIM, if it is available.])
2372 if test "${HAVE_XIM}" != "no"; then
2374 if test "$GCC" = yes; then
2375 CFLAGS="$CFLAGS --pedantic-errors"
2377 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2378 #include <X11/Xlib.h>
2379 #include <X11/Xresource.h>]],
2385 XPointer *client_data;
2387 /* If we're not using GCC, it's probably not XFree86, and this is
2388 probably right, but we can't use something like --pedantic-errors. */
2389 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2390 char*, XIMProc, XPointer*);
2392 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2394 [emacs_cv_arg6_star=yes])
2395 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2396 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2397 either XPointer or XPointer*.])dnl
2398 if test "$emacs_cv_arg6_star" = yes; then
2399 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2401 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2406 ### Start of font-backend (under any platform) section.
2407 # (nothing here yet -- this is a placeholder)
2408 ### End of font-backend (under any platform) section.
2410 ### Start of font-backend (under X11) section.
2411 if test "${HAVE_X11}" = "yes"; then
2412 PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
2414 ## Use -lXft if available, unless `--with-xft=no'.
2416 if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2419 if test "x${with_xft}" != "xno"; then
2421 PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
2422 ## Because xftfont.c uses XRenderQueryExtension, we also
2423 ## need to link to -lXrender.
2425 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2426 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2427 OLD_CPPFLAGS="$CPPFLAGS"
2428 OLD_CFLAGS="$CFLAGS"
2430 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2431 CFLAGS="$CFLAGS $XFT_CFLAGS"
2432 XFT_LIBS="-lXrender $XFT_LIBS"
2433 LIBS="$XFT_LIBS $LIBS"
2434 AC_CHECK_HEADER(X11/Xft/Xft.h,
2435 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS))
2437 if test "${HAVE_XFT}" = "yes"; then
2438 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2440 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2442 CPPFLAGS="$OLD_CPPFLAGS"
2443 CFLAGS="$OLD_CFLAGS"
2445 fi # "${HAVE_XFT}" = "yes"
2446 fi # "$HAVE_XFT" != no
2447 fi # "x${with_xft}" != "xno"
2449 ## We used to allow building with FreeType and without Xft.
2450 ## However, the ftx font backend driver is not in good shape.
2451 if test "$HAVE_XFT" != "yes"; then
2452 dnl For the "Does Emacs use" message at the end.
2456 dnl Strict linkers fail with
2457 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2458 dnl if -lfreetype is not specified.
2459 dnl The following is needed to set FREETYPE_LIBS.
2460 PKG_CHECK_MODULES(FREETYPE, freetype2, HAVE_FREETYPE=yes,
2463 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2467 if test "${HAVE_FREETYPE}" = "yes"; then
2468 AC_DEFINE(HAVE_FREETYPE, 1,
2469 [Define to 1 if using the freetype and fontconfig libraries.])
2470 if test "${with_libotf}" != "no"; then
2471 PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
2473 if test "$HAVE_LIBOTF" = "yes"; then
2474 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2475 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2476 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2477 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2478 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2479 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2480 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2484 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2485 dnl Does the new font backend require it, or can it work without it?
2489 if test "${HAVE_LIBOTF}" = yes; then
2490 if test "${with_m17n_flt}" != "no"; then
2491 PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
2492 if test "$HAVE_M17N_FLT" = "yes"; then
2493 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2504 ### End of font-backend (under X11) section.
2506 AC_SUBST(FREETYPE_CFLAGS)
2507 AC_SUBST(FREETYPE_LIBS)
2508 AC_SUBST(FONTCONFIG_CFLAGS)
2509 AC_SUBST(FONTCONFIG_LIBS)
2510 AC_SUBST(LIBOTF_CFLAGS)
2511 AC_SUBST(LIBOTF_LIBS)
2512 AC_SUBST(M17N_FLT_CFLAGS)
2513 AC_SUBST(M17N_FLT_LIBS)
2515 ### Use -lXpm if available, unless `--with-xpm=no'.
2518 if test "${HAVE_X11}" = "yes"; then
2519 if test "${with_xpm}" != "no"; then
2520 AC_CHECK_HEADER(X11/xpm.h,
2521 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2522 if test "${HAVE_XPM}" = "yes"; then
2523 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2524 AC_EGREP_CPP(no_return_alloc_pixels,
2525 [#include "X11/xpm.h"
2526 #ifndef XpmReturnAllocPixels
2527 no_return_alloc_pixels
2529 ], HAVE_XPM=no, HAVE_XPM=yes)
2531 if test "${HAVE_XPM}" = "yes"; then
2539 if test "${HAVE_XPM}" = "yes"; then
2540 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2546 ### Use -ljpeg if available, unless `--with-jpeg=no'.
2549 if test "${HAVE_X11}" = "yes"; then
2550 if test "${with_jpeg}" != "no"; then
2551 dnl Checking for jpeglib.h can lose because of a redefinition of
2553 AC_CHECK_HEADER(jerror.h,
2554 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
2557 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2558 if test "${HAVE_JPEG}" = "yes"; then
2559 AC_DEFINE(HAVE_JPEG)
2560 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2561 [#include <jpeglib.h>
2562 version=JPEG_LIB_VERSION
2564 [AC_DEFINE(HAVE_JPEG)],
2565 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2568 if test "${HAVE_JPEG}" = "yes"; then
2574 ### Use -lpng if available, unless `--with-png=no'.
2577 if test "${HAVE_X11}" = "yes"; then
2578 if test "${with_png}" != "no"; then
2579 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
2580 # in /usr/include/libpng.
2581 AC_CHECK_HEADERS(png.h libpng/png.h, break)
2582 if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
2583 AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
2587 if test "${HAVE_PNG}" = "yes"; then
2588 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2589 LIBPNG="-lpng -lz -lm"
2591 AC_CHECK_DECL(png_longjmp,
2593 [AC_DEFINE(PNG_DEPSTRUCT, [],
2594 [Define to empty to suppress deprecation warnings when building
2595 with --enable-gcc-warnings and with libpng versions before 1.5,
2596 which lack png_longjmp.])],
2597 [[#ifdef HAVE_LIBPNG_PNG_H
2598 # include <libpng/png.h>
2607 ### Use -ltiff if available, unless `--with-tiff=no'.
2610 if test "${HAVE_X11}" = "yes"; then
2611 if test "${with_tiff}" != "no"; then
2612 AC_CHECK_HEADER(tiffio.h,
2614 # At least one tiff package requires the jpeg library.
2615 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
2616 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
2619 if test "${HAVE_TIFF}" = "yes"; then
2620 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
2621 dnl FIXME -lz -lm, as per libpng?
2627 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
2630 if test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no"; then
2631 AC_CHECK_HEADER(gif_lib.h,
2632 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
2633 # Earlier versions can crash Emacs.
2634 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])
2636 if test "$HAVE_GIF" = yes; then
2638 elif test "$HAVE_GIF" = maybe; then
2639 # If gif_lib.h but no libgif, try libungif.
2640 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
2641 test "$HAVE_GIF" = yes && LIBGIF=-lungif
2644 if test "${HAVE_GIF}" = "yes"; then
2645 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
2650 dnl Check for required libraries.
2651 if test "${HAVE_X11}" = "yes"; then
2654 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
2655 MISSING="libXpm" && WITH_NO="--with-xpm=no"
2656 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
2657 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
2658 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
2659 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
2660 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
2661 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
2662 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
2663 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
2665 if test "X${MISSING}" != X; then
2666 AC_MSG_ERROR([The following required libraries were not found:
2668 Maybe some development libraries/packages are missing?
2669 If you don't want to link with them give
2671 as options to configure])
2675 ### Use -lgpm if available, unless `--with-gpm=no'.
2678 if test "${with_gpm}" != "no"; then
2679 AC_CHECK_HEADER(gpm.h,
2680 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
2682 if test "${HAVE_GPM}" = "yes"; then
2683 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
2689 dnl Check for malloc/malloc.h on darwin
2690 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
2693 ### Use NeXTstep API to implement GUI.
2694 if test "${HAVE_NS}" = "yes"; then
2695 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
2696 if test "${NS_IMPL_COCOA}" = "yes"; then
2697 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
2699 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
2700 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
2701 # See also .m.o rule in Makefile.in */
2702 # FIXME: are all these flags really needed? Document here why. */
2703 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
2704 ## Extra CFLAGS applied to src/*.m files.
2705 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"
2707 # We also have mouse menus.
2713 ### Use session management (-lSM -lICE) if available
2716 if test "${HAVE_X11}" = "yes"; then
2717 AC_CHECK_HEADER(X11/SM/SMlib.h,
2718 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
2720 if test "${HAVE_X_SM}" = "yes"; then
2721 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
2725 *) LIBS="$LIBXSM $LIBS" ;;
2731 ### Use libxml (-lxml2) if available
2733 if test "${with_xml2}" != "no"; then
2734 ### I'm not sure what the version number should be, so I just guessed.
2735 PKG_CHECK_MODULES(LIBXML2, libxml-2.0 > 2.6.17, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2736 if test "${HAVE_LIBXML2}" = "yes"; then
2737 LIBS="$LIBXML2_LIBS $LIBS"
2738 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2739 if test "${HAVE_LIBXML2}" = "yes"; then
2740 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
2747 AC_SUBST(LIBXML2_LIBS)
2748 AC_SUBST(LIBXML2_CFLAGS)
2750 # If netdb.h doesn't declare h_errno, we must declare it by hand.
2751 AC_CACHE_CHECK(whether netdb declares h_errno,
2752 emacs_cv_netdb_declares_h_errno,
2753 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
2754 [[return h_errno;]])],
2755 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
2756 if test $emacs_cv_netdb_declares_h_errno = yes; then
2757 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
2760 # sqrt and other floating-point functions such as fmod and frexp
2761 # are found in -lm on most systems.
2762 AC_CHECK_LIB(m, sqrt)
2764 # Check for mail-locking functions in a "mail" library. Probably this should
2765 # have the same check as for liblockfile below.
2766 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
2767 if test $have_mail = yes; then
2769 LIBS="$LIBS_MAIL $LIBS"
2770 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
2774 dnl Debian, at least:
2775 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
2776 if test $have_lockfile = yes; then
2777 LIBS_MAIL=-llockfile
2778 LIBS="$LIBS_MAIL $LIBS"
2779 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
2781 # If we have the shared liblockfile, assume we must use it for mail
2782 # locking (e.g. Debian). If we couldn't link against liblockfile
2783 # (no liblockfile.a installed), ensure that we don't need to.
2784 dnl This works for files generally, not just executables.
2785 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
2786 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
2787 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
2788 if test $ac_cv_prog_liblockfile = yes; then
2789 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
2790 This probably means that movemail could lose mail.
2791 There may be a `development' package to install containing liblockfile.])
2794 AC_CHECK_HEADERS_ONCE(maillock.h)
2797 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
2798 ## interlock access to the mail spool. The alternative is a lock file named
2799 ## /usr/spool/mail/$USER.lock.
2802 aix4-2) mail_lock="lockf" ;;
2804 gnu|freebsd|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
2806 ## On GNU/Linux systems, both methods are used by various mail programs.
2807 ## I assume most people are using newer mailers that have heard of flock.
2808 ## Change this if you need to.
2809 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
2810 ## configure gets the right answers, and that means *NOT* using flock.
2811 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
2812 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
2813 ## Debian maintainer hasn't provided a clean fix for Emacs.
2814 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
2815 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
2816 ## correct logic. -- fx
2817 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
2818 ## liblockfile is a Free Software replacement for libmail, used on
2819 ## Debian systems and elsewhere. -rfr.
2822 if test $have_mail = yes || test $have_lockfile = yes; then
2823 test $ac_cv_header_maillock_h = yes && mail_lock=no
2829 case "$mail_lock" in
2830 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
2832 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
2834 *) BLESSMAIL_TARGET="need-blessmail" ;;
2836 AC_SUBST(BLESSMAIL_TARGET)
2839 AC_CHECK_FUNCS(gethostname \
2840 closedir getrusage get_current_dir_name \
2842 fpathconf select euidaccess getpagesize setlocale \
2843 utimes getrlimit setrlimit setpgid getcwd shutdown getaddrinfo \
2844 __fpending strsignal setitimer \
2845 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
2846 gai_strerror mkstemp getline getdelim fsync sync \
2847 difftime posix_memalign \
2848 getpwent endpwent getgrent endgrent \
2850 cfmakeraw cfsetspeed copysign __executable_start)
2852 dnl getwd appears to be buggy on SVR4.2, so we don't use it.
2853 if test $opsys = unixware; then
2854 dnl In case some other test ends up checking for getwd.
2855 AC_DEFINE(BROKEN_GETWD, 1, [Define if getwd should not be used.])
2857 AC_CHECK_FUNCS(getwd)
2860 ## Eric Backus <ericb@lsid.hp.com> says, HP-UX 9.x on HP 700 machines
2861 ## has a broken `rint' in some library versions including math library
2862 ## version number A.09.05.
2863 ## You can fix the math library by installing patch number PHSS_4630.
2864 ## But we can fix it more reliably for Emacs by just not using rint.
2865 ## We also skip HAVE_RANDOM - see comments in src/conf_post.h.
2868 *) AC_CHECK_FUNCS(random rint) ;;
2871 dnl Cannot use AC_CHECK_FUNCS
2872 AC_CACHE_CHECK([for __builtin_unwind_init],
2873 emacs_cv_func___builtin_unwind_init,
2874 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
2875 emacs_cv_func___builtin_unwind_init=yes,
2876 emacs_cv_func___builtin_unwind_init=no)])
2877 if test $emacs_cv_func___builtin_unwind_init = yes; then
2878 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
2879 [Define to 1 if you have the `__builtin_unwind_init' function.])
2882 AC_CHECK_HEADERS_ONCE(sys/un.h)
2889 AC_CHECK_FUNCS(grantpt)
2891 # PTY-related GNU extensions.
2892 AC_CHECK_FUNCS(getpt posix_openpt)
2894 # Check this now, so that we will NOT find the above functions in ncurses.
2895 # That is because we have not set up to link ncurses in lib-src.
2896 # It's better to believe a function is not available
2897 # than to expect to find it in ncurses.
2898 # Also we need tputs and friends to be able to build at all.
2899 AC_MSG_CHECKING([for library containing tputs])
2900 # Run a test program that contains a call to tputs, a call that is
2901 # never executed. This tests whether a pre-'main' dynamic linker
2902 # works with the library. It's too much trouble to actually call
2903 # tputs in the test program, due to portability hassles. When
2904 # cross-compiling, assume the test program will run if it links.
2905 AC_DEFUN([tputs_link_source], [
2907 [[extern void tputs (const char *, int, int (*)(int));
2908 int main (int argc, char **argv)
2911 tputs (argv[0], 0, 0);
2915 # Maybe curses should be tried earlier?
2916 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
2917 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
2919 if test -z "$tputs_library"; then
2923 LIBS_TERMCAP=-l$tputs_library
2925 LIBS="$LIBS_TERMCAP $LIBS"
2927 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
2928 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
2930 if test "X$msg" != Xno; then
2934 AC_MSG_RESULT([$msg])
2935 if test "X$msg" = Xno; then
2936 AC_MSG_ERROR([The required function `tputs' was not found in any library.
2937 The following libraries were tried (in order):
2938 libtinfo, libncurses, libterminfo, libtermcap, libcurses
2939 Please try installing whichever of these libraries is most appropriate
2940 for your system, together with its header files.
2941 For example, a libncurses-dev(el) or similar package.])
2944 ## Use termcap instead of terminfo?
2945 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
2947 ## FIXME? In the cases below where we unconditionally set
2948 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
2949 ## if that was found above to have tputs.
2950 ## Should we use the gnu* logic everywhere?
2952 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
2953 ## The ncurses library has been moved out of the System framework in
2954 ## Mac OS X 10.2. So if configure detects it, set the command-line
2955 ## option to use it.
2956 darwin) LIBS_TERMCAP="-lncurses" ;;
2958 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
2961 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
2962 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
2963 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
2964 [[#if __FreeBSD_version < 400000
2967 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
2969 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
2971 if test $emacs_cv_freebsd_terminfo = yes; then
2972 LIBS_TERMCAP="-lncurses"
2975 LIBS_TERMCAP="-ltermcap"
2980 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
2982 LIBS_TERMCAP="-ltermcap"
2986 openbsd) LIBS_TERMCAP="-lncurses" ;;
2988 ## hpux: Make sure we get select from libc rather than from libcurses
2989 ## because libcurses on HPUX 10.10 has a broken version of select.
2990 ## We used to use -lc -lcurses, but this may be cleaner.
2991 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
2992 # set that way, now it uses the default). Isn't this a contradiction?
2993 hpux*) LIBS_TERMCAP="-ltermcap" ;;
2997 TERMCAP_OBJ=tparam.o
2998 if test $TERMINFO = yes; then
2999 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3000 TERMCAP_OBJ=terminfo.o
3002 AC_SUBST(LIBS_TERMCAP)
3003 AC_SUBST(TERMCAP_OBJ)
3006 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3007 # On Darwin, res_init appears not to be useful: see bug#562 and
3008 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3011 if test $opsys != darwin; then
3013 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3014 #include <arpa/nameser.h>
3015 #include <resolv.h>]],
3016 [[return res_init();]])],
3017 have_res_init=yes, have_res_init=no)
3018 if test "$have_res_init" = no; then
3020 LIBS="$LIBS -lresolv"
3021 AC_MSG_CHECKING(for res_init with -lresolv)
3022 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3023 #include <arpa/nameser.h>
3024 #include <resolv.h>]],
3025 [[return res_init();]])],
3026 have_res_init=yes, have_res_init=no)
3027 AC_MSG_RESULT($have_res_init)
3028 if test "$have_res_init" = yes ; then
3034 if test "$have_res_init" = yes; then
3035 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3039 # Do we need the Hesiod library to provide the support routines?
3040 dnl FIXME? Should we be skipping this on Darwin too?
3042 if test "$with_hesiod" != no ; then
3043 # Don't set $LIBS here -- see comments above. FIXME which comments?
3044 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3045 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3046 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3047 if test "$resolv" = yes ; then
3052 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3053 hesiod=yes, :, $RESOLVLIB)])
3055 if test x"$hesiod" = xyes; then
3056 AC_DEFINE(HAVE_LIBHESIOD, 1,
3057 [Define to 1 if you have the hesiod library (-lhesiod).])
3063 # Do we need libresolv (due to res_init or Hesiod)?
3064 if test "$resolv" = yes && test $opsys != darwin; then
3065 AC_DEFINE(HAVE_LIBRESOLV, 1,
3066 [Define to 1 if you have the resolv library (-lresolv).])
3073 # These tell us which Kerberos-related libraries to use.
3080 if test "${with_kerberos}" != no; then
3081 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3082 if test $have_com_err = yes; then
3083 COM_ERRLIB=-lcom_err
3084 LIBS="$COM_ERRLIB $LIBS"
3085 AC_DEFINE(HAVE_LIBCOM_ERR, 1, [Define to 1 if you have the `com_err' library (-lcom_err).])
3087 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3088 if test $have_crypto = yes; then
3090 LIBS="$CRYPTOLIB $LIBS"
3091 AC_DEFINE(HAVE_LIBCRYPTO, 1, [Define to 1 if you have the `crypto' library (-lcrypto).])
3093 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3094 if test $have_k5crypto = yes; then
3095 CRYPTOLIB=-lk5crypto
3096 LIBS="$CRYPTOLIB $LIBS"
3097 AC_DEFINE(HAVE_LIBK5CRYPTO, 1, [Define to 1 if you have the `k5crypto' library (-lk5crypto).])
3099 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3100 if test $have_krb5=yes; then
3102 LIBS="$KRB5LIB $LIBS"
3103 AC_DEFINE(HAVE_LIBKRB5, 1, [Define to 1 if you have the `krb5' library (-lkrb5).])
3105 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3106 if test "${with_kerberos5}" = no; then
3107 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3108 if test $have_des425 = yes; then
3110 LIBS="$DESLIB $LIBS"
3111 AC_DEFINE(HAVE_LIBDES425, 1, [Define to 1 if you have the `des425' library (-ldes425).])
3113 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3114 if test $have_des = yes; then
3116 LIBS="$DESLIB $LIBS"
3117 AC_DEFINE(HAVE_LIBDES, 1, [Define to 1 if you have the `des' library (-ldes).])
3120 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3121 if test $have_krb4 = yes; then
3123 LIBS="$KRB4LIB $LIBS"
3124 AC_DEFINE(HAVE_LIBKRB4, 1, [Define to 1 if you have the `krb4' library (-lkrb4).])
3126 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3127 if test $have_krb = yes; then
3129 LIBS="$KRB4LIB $LIBS"
3130 AC_DEFINE(HAVE_LIBKRB, 1, [Define to 1 if you have the `krb' library (-lkrb).])
3135 if test "${with_kerberos5}" != no; then
3136 AC_CHECK_HEADERS(krb5.h,
3137 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3138 [#include <krb5.h>])])
3140 AC_CHECK_HEADERS(des.h,,
3141 [AC_CHECK_HEADERS(kerberosIV/des.h,,
3142 [AC_CHECK_HEADERS(kerberos/des.h)])])
3143 AC_CHECK_HEADERS(krb.h,,
3144 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3145 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3147 AC_CHECK_HEADERS(com_err.h)
3150 AC_SUBST(COM_ERRLIB)
3156 AC_CHECK_FUNCS_ONCE(tzset)
3157 AC_MSG_CHECKING(whether localtime caches TZ)
3158 AC_CACHE_VAL(emacs_cv_localtime_cache,
3159 [if test x$ac_cv_func_tzset = xyes; then
3160 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3161 char TZ_GMT0[] = "TZ=GMT0";
3162 char TZ_PST8[] = "TZ=PST8";
3165 time_t now = time ((time_t *) 0);
3166 int hour_GMT0, hour_unset;
3167 if (putenv (TZ_GMT0) != 0)
3169 hour_GMT0 = localtime (&now)->tm_hour;
3171 hour_unset = localtime (&now)->tm_hour;
3172 if (putenv (TZ_PST8) != 0)
3174 if (localtime (&now)->tm_hour == hour_GMT0)
3177 if (localtime (&now)->tm_hour != hour_unset)
3180 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3181 [# If we have tzset, assume the worst when cross-compiling.
3182 emacs_cv_localtime_cache=yes])
3184 # If we lack tzset, report that localtime does not cache TZ,
3185 # since we can't invalidate the cache if we don't have tzset.
3186 emacs_cv_localtime_cache=no
3188 AC_MSG_RESULT($emacs_cv_localtime_cache)
3189 if test $emacs_cv_localtime_cache = yes; then
3190 AC_DEFINE(LOCALTIME_CACHE, 1,
3191 [Define to 1 if localtime caches TZ.])
3195 AC_CHECK_FUNC(socket, , ok_so_far=no)
3196 if test $ok_so_far = yes; then
3197 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3199 if test $ok_so_far = yes; then
3200 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3202 if test $ok_so_far = yes; then
3203 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3204 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3205 [Define to 1 if you have inet sockets.])
3208 if test -f /usr/lpp/X11/bin/smt.exp; then
3209 AC_DEFINE(HAVE_AIX_SMT_EXP, 1,
3210 [Define to 1 if the file /usr/lpp/X11/bin/smt.exp exists.])
3213 AC_MSG_CHECKING(whether system supports dynamic ptys)
3214 if test -d /dev/pts && ls -d /dev/ptmx > /dev/null 2>&1 ; then
3216 AC_DEFINE(HAVE_DEV_PTMX, 1, [Define to 1 if dynamic ptys are supported.])
3221 dnl Check for a Solaris 2.4 vfork bug that Autoconf misses (through 2.69).
3222 dnl This can be removed once we assume Autoconf 2.70.
3224 *-solaris2.4 | *-solaris2.4.*)
3225 dnl Disable the Autoconf-generated vfork test.
3226 : ${ac_cv_func_vfork_works=no};;
3231 AC_CHECK_FUNCS(snprintf)
3233 dnl Adapted from Haible's version.
3234 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3235 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3236 [[char* cs = nl_langinfo(CODESET);]])],
3237 emacs_cv_langinfo_codeset=yes,
3238 emacs_cv_langinfo_codeset=no)
3240 if test $emacs_cv_langinfo_codeset = yes; then
3241 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3242 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3247 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3248 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3249 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3250 if test "$emacs_cv_c_restrict_arr" = yes; then
3251 AC_DEFINE(__restrict_arr, __restrict,
3252 [Define to compiler's equivalent of C99 restrict keyword in array
3253 declarations. Define as empty for no equivalent.])
3256 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3257 dnl how the tty code is related to POSIX and/or other versions of termios.
3258 dnl The following looks like a useful start.
3260 dnl AC_SYS_POSIX_TERMIOS
3261 dnl if test $ac_cv_sys_posix_termios = yes; then
3262 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3263 dnl and macros for terminal control.])
3264 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3267 dnl Turned on June 1996 supposing nobody will mind it.
3268 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3269 in the full name stands for the login id.])
3271 dnl Every platform that uses configure (ie every non-MS platform)
3272 dnl supports this. There is a create-lockfiles option you can
3273 dnl customize if you do not want the lock files to be written.
3274 dnl So it is not clear that this #define still needs to exist.
3275 AC_DEFINE(CLASH_DETECTION, 1, [Define if you want lock files to be written,
3276 so that Emacs can tell instantly when you try to modify a file that
3277 someone else has modified in his/her Emacs.])
3279 dnl Everybody supports this, except MS.
3280 dnl Seems like the kind of thing we should be testing for, though.
3281 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3282 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3284 dnl Everybody supports this, except MS-DOS.
3285 dnl Seems like the kind of thing we should be testing for, though.
3286 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3287 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3288 4.2-compatible sockets.])
3290 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3292 AC_DEFINE(NULL_DEVICE, ["/dev/null"], [Name of the file to open to get
3293 a null file, or a data sink.])
3295 AC_DEFINE(SEPCHAR, [':'], [Character that separates PATH elements.])
3297 dnl Everybody supports this, except MS-DOS.
3298 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3300 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3303 AC_DEFINE(DIRECTORY_SEP, ['/'],
3304 [Character that separates directories in a file name.])
3306 dnl Only used on MS platforms.
3307 AH_TEMPLATE(DEVICE_SEP, [Character that separates a device in a file name.])
3309 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
3310 [Returns true if character is a device separator.])
3312 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
3313 [Returns true if character is a directory separator.])
3315 dnl On MS, this also accepts IS_DEVICE_SEP.
3316 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
3317 [Returns true if character is any form of separator.])
3320 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
3324 dnl Unfortunately without libXmu we cannot support EditRes.
3325 if test x$ac_cv_lib_Xmu_XmuConvertStandardSelection != xyes; then
3326 AC_DEFINE(NO_EDITRES, 1)
3331 dnl Assar Westerlund <assar@sics.se> says this is necessary for
3332 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
3333 AC_DEFINE(NO_EDITRES, 1)
3339 irix6-5 | sol2* | unixware )
3340 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
3341 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
3342 dnl need the constant to dimension an array. So wire in the appropriate
3344 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
3348 emacs_broken_SIGIO=no
3351 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
3352 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
3353 hpux* | irix6-5 | openbsd | sol2* | unixware )
3354 emacs_broken_SIGIO=yes
3358 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
3359 dnl the way this system works, libc functions that return malloced
3360 dnl memory use the libc malloc implementation. Calling xfree or
3361 dnl xrealloc on the results of such functions results in a crash.
3363 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
3364 dnl but that does not currently work on this system.
3366 dnl It is possible to completely override the malloc implementation on
3367 dnl AIX, but that involves putting the malloc functions in a shared
3368 dnl library and setting the MALLOCTYPE environment variable to point to
3369 dnl that shared library.
3371 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
3372 dnl to avoid a crash just use the Emacs implementation for that function.
3374 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
3375 dnl of this file, so that we do not check for get_current_dir_name
3376 dnl on AIX. But that might be fragile if something else ends
3377 dnl up testing for get_current_dir_name as a dependency.
3378 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
3379 get_current_dir_name should not be used.])
3383 dnl Circumvent a bug in FreeBSD. In the following sequence of
3384 dnl writes/reads on a PTY, read(2) returns bogus data:
3386 dnl write(2) 1022 bytes
3387 dnl write(2) 954 bytes, get EAGAIN
3388 dnl read(2) 1024 bytes in process_read_output
3389 dnl read(2) 11 bytes in process_read_output
3391 dnl That is, read(2) returns more bytes than have ever been written
3392 dnl successfully. The 1033 bytes read are the 1022 bytes written
3393 dnl successfully after processing (for example with CRs added if the
3394 dnl terminal is set up that way which it is here). The same bytes will
3395 dnl be seen again in a later read(2), without the CRs.
3396 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
3397 work around an issue when reading from a PTY.])
3403 dnl FIXME Can't we test if this exists (eg /proc/$$)?
3404 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
3409 darwin | freebsd | netbsd | openbsd )
3410 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
3411 close a pty to make it a controlling terminal (it is already a
3412 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
3416 dnl FIXME Surely we can test for this rather than hard-code it.
3418 netbsd | openbsd) sound_device="/dev/audio" ;;
3419 *) sound_device="/dev/dsp" ;;
3423 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
3424 [Name of the default sound device.])
3427 dnl Emacs can read input using SIGIO and buffering characters itself,
3428 dnl or using CBREAK mode and making C-g cause SIGINT.
3429 dnl The choice is controlled by the variable interrupt_input.
3431 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
3433 dnl Emacs uses the presence of the USABLE_SIGIO macro
3434 dnl to indicate whether or not signal-driven I/O is possible. It uses
3435 dnl INTERRUPT_INPUT to decide whether to use it by default.
3437 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
3438 dnl CBREAK mode has two disadvantages
3439 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
3440 dnl I hear that in system V this problem does not exist.
3441 dnl 2) Control-G causes output to be discarded.
3442 dnl I do not know whether this can be fixed in system V.
3444 dnl Another method of doing input is planned but not implemented.
3445 dnl It would have Emacs fork off a separate process
3446 dnl to read the input and send it to the true Emacs process
3449 darwin | gnu-linux | gnu-kfreebsd )
3450 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
3455 dnl If the system's imake configuration file defines `NeedWidePrototypes'
3456 dnl as `NO', we must define NARROWPROTO manually. Such a define is
3457 dnl generated in the Makefile generated by `xmkmf'. If we don't define
3458 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
3459 dnl taking float or double parameters.
3461 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
3462 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
3463 file defines `NeedWidePrototypes' as `NO'.])
3468 dnl Used in process.c, this must be a loop, even if it only runs once.
3469 dnl (Except on SGI; see below. Take that, clarity and consistency!)
3470 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
3471 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
3472 dnl trying suffixes 0-16.
3473 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
3474 first PTY, if PTYs are supported.])
3475 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
3476 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
3477 end of a PTY, if non-standard.])
3478 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
3479 end of a PTY, if non-standard.])
3483 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
3484 dnl You allocate a pty by opening /dev/ptc to get the master side.
3485 dnl To get the name of the slave side, you just ttyname() the master side.
3486 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
3487 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
3491 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3492 dnl multi-line AC_DEFINEs are hard. :(
3493 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)])
3494 AC_DEFINE(PTY_NAME_SPRINTF, [])
3495 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3498 dnl FIXME? Maybe use same as freebsd - see bug#12040.
3500 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3501 dnl Not used, because PTY_ITERATION is defined.
3502 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3503 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
3504 dnl But we don't have to block SIGCHLD because it is blocked in the
3505 dnl implementation of grantpt.
3506 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (0)])
3507 AC_DEFINE(PTY_NAME_SPRINTF, [])
3508 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3512 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3515 gnu-linux | gnu-kfreebsd | freebsd | netbsd )
3517 if test "x$ac_cv_func_grantpt" = xyes; then
3518 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
3519 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3520 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
3521 dnl to prevent sigchld_handler from intercepting the child's death.
3522 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); }])
3523 dnl if HAVE_POSIX_OPENPT
3524 if test "x$ac_cv_func_posix_openpt" = xyes; then
3525 AC_DEFINE(PTY_OPEN, [fd = posix_openpt (O_RDWR | O_NOCTTY)])
3526 AC_DEFINE(PTY_NAME_SPRINTF, [])
3528 elif test "x$ac_cv_func_getpt" = xyes; then
3529 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
3530 AC_DEFINE(PTY_NAME_SPRINTF, [])
3532 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
3535 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3540 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3541 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
3542 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
3546 dnl It looks like this cannot be right, because it is not a loop.
3547 dnl However, process.c actually does this:
3553 dnl which presumably makes it OK, since irix == sgi (?).
3554 dnl FIXME it seems like this special treatment is unnecessary?
3555 dnl Why can't irix use a single-trip loop like eg cygwin?
3556 AC_DEFINE(PTY_ITERATION, [])
3557 dnl Not used, because PTY_ITERATION is defined.
3558 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
3559 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); }])
3560 dnl No need to get the pty name at all.
3561 AC_DEFINE(PTY_NAME_SPRINTF, [])
3562 dnl No need to use sprintf to get the tty name--we get that from _getpty.
3563 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3567 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
3568 dnl from intercepting that death. If any child but grantpt's should die
3569 dnl within, it should be caught after sigrelse(2).
3570 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); }])
3574 dnl Comments are as per sol2*.
3575 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); }])
3582 dnl This change means that we don't loop through allocate_pty too
3583 dnl many times in the (rare) event of a failure.
3584 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
3585 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
3586 dnl Push various streams modules onto a PTY channel. Used in process.c.
3587 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.])
3592 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
3593 "typing" a signal character on the pty.])
3596 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
3597 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
3598 aix4-2 | cygwin | gnu | irix6-5 | freebsd | netbsd | openbsd )
3599 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3602 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
3603 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
3604 gnu-linux | gnu-kfreebsd )
3606 AC_MSG_CHECKING([for signals via characters])
3607 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3608 #include <linux/version.h>
3609 #if LINUX_VERSION_CODE < 0x20400
3610 # error "Linux version too old"
3612 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
3614 AC_MSG_RESULT([$emacs_signals_via_chars])
3615 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3620 dnl Used in dispnew.c
3621 AH_TEMPLATE(PENDING_OUTPUT_COUNT, [Number of chars of output in the
3622 buffer of a stdio stream.])
3624 AC_MSG_CHECKING([whether we are using the GNU C library])
3625 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3626 #include <features.h>
3627 #ifndef __GNU_LIBRARY__
3628 # error "this is not the GNU C library"
3630 ]], [[]])], emacs_glibc=yes, emacs_glibc=no)
3631 AC_MSG_RESULT([$emacs_glibc])
3633 if test $emacs_glibc = yes; then
3635 emacs_pending_output=unknown
3638 gnu | gnu-linux | gnu-kfreebsd )
3639 AC_MSG_CHECKING([for style of pending output formalism])
3640 dnl In autoconf 2.67 and later, we could use a single test
3641 dnl since the preprocessed output is accessible in "conftest.i".
3642 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3644 #if !defined (_IO_STDIO_H) && !defined (_STDIO_USES_IOSTREAM)
3645 # error "stdio definitions not found"
3647 ]], [[]])], emacs_pending_output=new, [])
3649 if test $emacs_pending_output = unknown; then
3651 gnu-linux | gnu-kfreebsd)
3652 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3655 # error "not using uclibc"
3657 ]], [[]])], emacs_pending_output=uclibc, emacs_pending_output=old)
3662 AC_MSG_RESULT([$emacs_pending_output])
3664 case $emacs_pending_output in
3666 dnl New C libio names.
3667 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE),
3668 [((FILE)->_IO_write_ptr - (FILE)->_IO_write_base)])
3671 dnl Using the uClibc library.
3672 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE),
3673 [((FILE)->__bufpos - (FILE)->__bufstart)])
3676 dnl Old C++ iostream names.
3677 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE),
3678 [((FILE)->_pptr - (FILE)->_pbase)])
3684 if test $emacs_pending_output = unknown; then
3685 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->__bufp - (FILE)->__buffer)])
3688 else dnl !emacs_glibc
3691 cygwin | darwin | freebsd | netbsd | openbsd )
3692 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->_p - (FILE)->_bf._base)])
3696 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->__ptr - (FILE)->__base)])
3700 dnl HAVE_STDIO_EXT_H && HAVE___FPENDING
3701 if test x$ac_cv_header_stdio_ext_h = xyes && \
3702 test x$ac_cv_func___fpending = xyes; then
3703 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [__fpending (FILE)])
3704 AC_DEFINE(DISPNEW_NEEDS_STDIO_EXT, 1,
3705 [Define if dispnew.c should include stdio_ext.h.])
3707 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->_ptr - (FILE)->_base)])
3714 dnl Used in vm-limit.c
3715 AH_TEMPLATE(DATA_START, [Address of the start of the data segment.])
3716 dnl Used in lisp.h, emacs.c, mem-limits.h
3717 dnl NEWS.18 describes this as "a number which contains
3718 dnl the high bits to be inclusive or'ed with pointers that are unpacked."
3719 AH_TEMPLATE(DATA_SEG_BITS, [Extra bits to be or'd in with any pointers
3720 stored in a Lisp_Object.])
3721 dnl if Emacs uses fewer than 32 bits for the value field of a LISP_OBJECT.
3725 dnl libc defines data_start.
3726 AC_DEFINE(DATA_START, [({ extern int data_start; (char *) &data_start; })])
3730 dnl The data segment on this machine always starts at address 0x40000000.
3731 AC_DEFINE(DATA_START, [0x40000000])
3732 AC_DEFINE(DATA_SEG_BITS, [0x40000000])
3735 AC_DEFINE(DATA_START, [0x10000000])
3736 AC_DEFINE(DATA_SEG_BITS, [0x10000000])
3741 AH_TEMPLATE(ULIMIT_BREAK_VALUE, [Undocumented.])
3742 AH_TEMPLATE(TAB3, [Undocumented.])
3745 darwin) AC_DEFINE(TAB3, OXTABS) ;;
3747 gnu | freebsd | netbsd | openbsd )
3748 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
3749 AC_DEFINE(TAB3, OXTABS)
3752 gnu-linux | gnu-kfreebsd )
3753 dnl libc-linux/sysdeps/linux/i386/ulimit.c says that due to shared
3754 dnl library, we cannot get the maximum address for brk.
3755 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3759 ]], [[]])], AC_DEFINE(ULIMIT_BREAK_VALUE, [(32*1024*1024)]), [])
3761 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3765 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
3766 [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)],
3767 [Mark a secondary stack, like the register stack on the ia64.]), [])
3771 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
3772 run_time_remap; for HPUX.])
3776 dnl Ulimit(UL_GMEMLIM) is busted...
3777 AC_DEFINE(ULIMIT_BREAK_VALUE, [0x14000000])
3782 dnl These won't be used automatically yet. We also need to know, at least,
3783 dnl that the stack is continuous.
3784 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
3785 registers relevant for conservative garbage collection in the jmp_buf.])
3787 AH_TEMPLATE(GC_MARK_STACK, [Define to GC_USE_GCPROS_AS_BEFORE if
3788 conservative garbage collection is not known to work.])
3792 aix4-2 | hpux* | unixware)
3793 dnl Conservative garbage collection has not been tested, so for now
3794 dnl play it safe and stick with the old-fashioned way of marking.
3795 AC_DEFINE(GC_MARK_STACK, [GC_USE_GCPROS_AS_BEFORE])
3798 dnl Not all the architectures are tested, but there are Debian packages
3799 dnl for SCM and/or Guile on them, so the technique must work. See also
3800 dnl comments in alloc.c concerning setjmp and gcc.
3801 dnl Fixme: it's probably safe to just use the GCC conditional below.
3802 gnu-linux | gnu-kfreebsd )
3803 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3804 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
3805 || defined __alpha__ || defined __mips__ || defined __s390__ \
3806 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
3807 || defined __ia64__ || defined __sh__
3810 # error "setjmp not known to work on this arch"
3812 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1),
3813 AC_DEFINE(GC_MARK_STACK, [GC_USE_GCPROS_AS_BEFORE]) )
3818 if test x$GCC = xyes; then
3819 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
3820 AC_DEFINE(GC_SETJMP_WORKS, 1)
3823 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
3824 freebsd | netbsd | openbsd | irix6-5 | sol2* )
3825 AC_DEFINE(GC_SETJMP_WORKS, 1)
3830 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
3833 [[#include <setjmp.h>
3837 _longjmp (j, 1);]])],
3838 [emacs_cv_func__setjmp=yes],
3839 [emacs_cv_func__setjmp=no])])
3840 if test $emacs_cv_func__setjmp = yes; then
3841 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
3843 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
3846 [[#include <setjmp.h>
3849 if (! sigsetjmp (j, 1))
3850 siglongjmp (j, 1);]])],
3851 [emacs_cv_func_sigsetjmp=yes],
3852 [emacs_cv_func_sigsetjmp=no])])
3853 if test $emacs_cv_func_sigsetjmp = yes; then
3854 AC_DEFINE([HAVE_SIGSETJMP], 1,
3855 [Define to 1 if sigsetjmp and siglongjmp work.
3856 The value of this symbol is irrelevant if HAVE__SETJMP is defined.])
3862 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
3863 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
3864 dnl and this is all we need.
3865 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
3872 dnl Used in xfaces.c.
3873 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
3874 some systems, where it requires time.h.])
3879 dnl Define symbols to identify the version of Unix this is.
3880 dnl Define all the symbols that apply correctly.
3881 AH_TEMPLATE(BSD4_2, [Define if the system is compatible with BSD 4.2.])
3882 AH_TEMPLATE(BSD_SYSTEM, [Define if the system is compatible with BSD 4.2.])
3883 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
3884 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
3885 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
3886 AH_TEMPLATE(USG5, [Define if the system is compatible with System V.])
3887 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
3893 dnl This symbol should be defined on AIX Version 3 ???????
3894 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3896 # error "_AIX not defined"
3898 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
3902 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
3906 dnl BSD4_3 and BSD4_4 are already defined in sys/param.h.
3907 AC_DEFINE(BSD4_2, [])
3908 AC_DEFINE(BSD_SYSTEM, [])
3909 dnl More specific than the above two. We cannot use __APPLE__ as this
3910 dnl may not be defined on non-OSX Darwin, and we cannot define DARWIN
3911 dnl here because Panther and lower CoreFoundation.h uses DARWIN to
3912 dnl distinguish OS X from pure Darwin.
3913 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
3917 AC_DEFINE(BSD4_2, [])
3918 dnl Hack to avoid calling AC_PREPROC_IFELSE multiple times.
3919 dnl Would not be needed with autoconf >= 2.67, where the
3920 dnl preprocessed output is accessible in "conftest.i".
3921 AC_DEFINE(BSD_SYSTEM_AHB, 1, [Define if AH_BOTTOM should change BSD_SYSTEM.])
3924 gnu | netbsd | openbsd )
3925 AC_DEFINE(BSD4_2, [])
3926 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3928 # error "BSD_SYSTEM not defined"
3930 ]], [[]])], [], AC_DEFINE(BSD_SYSTEM, 43) )
3933 gnu-linux | gnu-kfreebsd )
3935 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
3941 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
3947 AC_DEFINE(USG5_4, [])
3948 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
3954 AC_DEFINE(USG5_4, [])
3955 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
3961 AC_DEFINE(USG5_4, [])
3965 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
3968 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
3969 emacs_cv_usable_FIONREAD=no
3974 [AC_LANG_PROGRAM([[#include <sys/types.h>
3975 #include <sys/ioctl.h>
3977 # include <sys/filio.h>
3980 [[int foo = ioctl (0, FIONREAD, &foo);]])],
3981 [emacs_cv_usable_FIONREAD=yes],
3982 [emacs_cv_usable_FIONREAD=no])
3985 if test $emacs_cv_usable_FIONREAD = yes; then
3986 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
3988 if test $emacs_broken_SIGIO = no; then
3989 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
3991 [AC_LANG_PROGRAM([[#include <fcntl.h>
3994 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
3995 [emacs_cv_usable_SIGIO=yes],
3996 [emacs_cv_usable_SIGIO=no])],
3997 [emacs_cv_usable_SIGIO=yes],
3998 [emacs_cv_usable_SIGIO=no])
3999 if test $emacs_cv_usable_SIGIO = yes; then
4000 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4007 dnl Emacs supplies its own malloc, but glib (part of Gtk+) calls
4008 dnl memalign and on Cygwin, that becomes the Cygwin-supplied memalign.
4009 dnl As malloc is not the Cygwin malloc, the Cygwin memalign always
4010 dnl returns ENOSYS. A workaround is to set G_SLICE=always-malloc. */
4012 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
4013 G_SLICE environment variable to "always-malloc" at startup, if
4018 dnl It works to open the pty's tty in the parent (Emacs), then
4019 dnl close and reopen it in the child.
4020 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4021 works to open a pty's tty in the parent process, then close and
4022 reopen it in the child.])
4026 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4027 use VSUSP instead of VSWTCH.])
4028 AC_DEFINE(SETPGRP_RELEASES_CTTY, 1, [Define if process.c:child_setup
4029 should not call setpgrp.])
4033 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4038 # Set up the CFLAGS for real compilation, so we can substitute it.
4039 CFLAGS="$REAL_CFLAGS"
4040 CPPFLAGS="$REAL_CPPFLAGS"
4042 ## Hack to detect a buggy GCC version.
4043 if test "x$GCC" = xyes \
4044 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4045 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4046 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4047 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4050 version=$PACKAGE_VERSION
4052 copyright="Copyright (C) 2012 Free Software Foundation, Inc."
4053 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4054 [Short copyright string for this version of Emacs.])
4057 ### Specify what sort of things we'll be editing into Makefile and config.h.
4058 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4060 AC_SUBST(configuration)
4065 AC_SUBST(exec_prefix)
4068 AC_SUBST(sharedstatedir)
4069 AC_SUBST(libexecdir)
4074 AC_SUBST(standardlisppath)
4075 AC_SUBST(locallisppath)
4077 AC_SUBST(x_default_search_path)
4079 AC_SUBST(archlibdir)
4084 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4085 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4086 ## end of LIBX_BASE, but nothing ever set it.
4087 AC_SUBST(LD_SWITCH_X_SITE)
4088 AC_SUBST(C_SWITCH_X_SITE)
4089 AC_SUBST(GNUSTEP_CFLAGS)
4091 ## Used in lwlib/Makefile.in.
4092 AC_SUBST(X_TOOLKIT_TYPE)
4094 AC_SUBST(ns_appbindir)
4095 AC_SUBST(ns_appresdir)
4097 AC_SUBST(GNU_OBJC_CFLAGS)
4098 AC_SUBST(OTHER_FILES)
4100 if test -n "${term_header}"; then
4101 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4102 [Define to the header for the built-in window system.])
4105 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4106 [Define to the canonical Emacs configuration name.])
4107 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${ac_configure_args}",
4108 [Define to the options passed to configure.])
4109 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4110 define this to include extra configuration information.])
4115 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4116 AC_DEFINE(HAVE_X_WINDOWS, 1,
4117 [Define to 1 if you want to use the X window system.])
4119 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o xgselect.o"
4121 if test "$HAVE_XFT" = "yes"; then
4122 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4123 elif test "$HAVE_FREETYPE" = "yes"; then
4124 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4134 if test "${USE_X_TOOLKIT}" != "none" ; then
4136 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4137 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4138 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4139 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4140 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4144 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4145 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4149 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4150 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4151 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4155 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4156 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4159 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4162 AC_SUBST(WIDGET_OBJ)
4165 case "$USE_X_TOOLKIT" in
4166 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4167 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4168 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS -lXcomposite" ;;
4170 AC_SUBST(TOOLKIT_LIBW)
4172 if test "$USE_X_TOOLKIT" = "none"; then
4173 LIBXT_OTHER="\$(LIBXSM)"
4174 OLDXMENU_TARGET="really-oldXMenu"
4176 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4177 OLDXMENU_TARGET="really-lwlib"
4179 AC_SUBST(LIBXT_OTHER)
4181 ## The X Menu stuff is present in the X10 distribution, but missing
4182 ## from X11. If we have X10, just use the installed library;
4183 ## otherwise, use our own copy.
4184 if test "${HAVE_X11}" = "yes" ; then
4185 AC_DEFINE(HAVE_X11, 1,
4186 [Define to 1 if you want to use version 11 of X windows.
4187 Otherwise, Emacs expects to use version 10.])
4189 if test "$USE_X_TOOLKIT" = "none"; then
4190 OLDXMENU="\${oldXMenudir}/libXMenu11.a"
4192 OLDXMENU="\${lwlibdir}/liblw.a"
4194 LIBXMENU="\$(OLDXMENU)"
4195 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4196 OLDXMENU_DEPS="\${OLDXMENU} ../src/\${OLDXMENU}"
4198 ## For a syntactically valid Makefile; not actually used for anything.
4199 ## See comments in src/Makefile.in.
4201 ## FIXME This case (!HAVE_X11 && HAVE_X_WINDOWS) is no longer possible(?).
4202 if test "${HAVE_X_WINDOWS}" = "yes"; then
4211 if test "$HAVE_GTK" = "yes" || test "$HAVE_MENUS" != "yes"; then
4218 AC_SUBST(OLDXMENU_TARGET)
4221 AC_SUBST(LIBX_OTHER)
4222 AC_SUBST(OLDXMENU_DEPS)
4224 if test "${HAVE_MENUS}" = "yes" ; then
4225 AC_DEFINE(HAVE_MENUS, 1,
4226 [Define to 1 if you have mouse menus.
4227 (This is automatic if you use X, but the option to specify it remains.)
4228 It is also defined with other window systems that support xmenu.c.])
4231 if test "${GNU_MALLOC}" = "yes" ; then
4232 AC_DEFINE(GNU_MALLOC, 1,
4233 [Define to 1 if you want to use the GNU memory allocator.])
4237 if test "${REL_ALLOC}" = "yes" ; then
4238 AC_DEFINE(REL_ALLOC, 1,
4239 [Define REL_ALLOC if you want to use the relocating allocator for
4242 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4244 AC_SUBST(RALLOC_OBJ)
4246 if test "$opsys" = "cygwin"; then
4247 CYGWIN_OBJ="sheap.o"
4248 ## Cygwin differs because of its unexec().
4250 POST_ALLOC_OBJ=lastfile.o
4253 PRE_ALLOC_OBJ=lastfile.o
4256 AC_SUBST(CYGWIN_OBJ)
4257 AC_SUBST(PRE_ALLOC_OBJ)
4258 AC_SUBST(POST_ALLOC_OBJ)
4260 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4261 # it temporarily reverts them to their pre-pkg-config values,
4262 # because gnulib needs to work with both src (which uses the
4263 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4264 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4265 # and it therefore needs to run in an environment where LIBS does not
4266 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4267 # for some package unrelated to lib-src.
4270 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4271 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4272 gl_ASSERT_NO_GNULIB_POSIXCHECK
4273 gl_ASSERT_NO_GNULIB_TESTS
4279 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4282 ## The -headerpad option tells ld (see man page) to leave room at the
4283 ## end of the header for adding load commands. Needed for dumping.
4284 ## 0x690 is the total size of 30 segment load commands (at 56
4285 ## each); under Cocoa 31 commands are required.
4286 if test "$HAVE_NS" = "yes"; then
4287 libs_nsgui="-framework AppKit"
4293 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4295 ## This is here because src/Makefile.in did some extra fiddling around
4296 ## with LD_SWITCH_SYSTEM. The cpp logic was:
4297 ## #ifndef LD_SWITCH_SYSTEM
4298 ## #if !defined (__GNUC__) && ((defined (BSD_SYSTEM) && !defined (COFF)))
4299 ## Since all the *bsds define LD_SWITCH_SYSTEM, this simplifies to:
4300 ## not using gcc, darwin.
4301 ## Because this was done in src/Makefile.in, the resulting part of
4302 ## LD_SWITCH_SYSTEM was not used in configure (ie, in ac_link).
4303 ## It therefore seems cleaner to put this in LD_SWITCH_SYSTEM_TEMACS,
4304 ## rather than LD_SWITCH_SYSTEM.
4305 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4306 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4309 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4310 ## find X at run-time.
4311 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4312 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4313 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4314 ## had different values in configure (in ac_link) and src/Makefile.in.
4315 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4316 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4318 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4321 if test "$NS_IMPL_GNUSTEP" = "yes"; then
4322 LD_SWITCH_SYSTEM_TEMACS="${LD_SWITCH_SYSTEM_TEMACS} -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES} -lgnustep-gui -lgnustep-base -lobjc -lpthread"
4325 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4331 ## gnu: GNU needs its own crt0.
4332 aix4-2|cygwin|darwin|gnu|hpux*|irix6-5|sol2*|unixware) ORDINARY_LINK=yes ;;
4334 ## On post 1.3 releases of NetBSD, gcc -nostdlib also clears the
4335 ## library search parth, i.e. it won't search /usr/lib for libc and
4336 ## friends. Using -nostartfiles instead avoids this problem, and
4337 ## will also work on earlier NetBSD releases.
4338 netbsd|openbsd) LD_FIRSTFLAG="-nostartfiles" ;;
4340 ## powerpc*: NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp> says
4341 ## MkLinux/LinuxPPC needs this.
4342 ## s390x-* only supports opsys = gnu-linux so it can be added here.
4344 case "$canonical" in
4345 powerpc*|s390x-*) LD_FIRSTFLAG="-nostdlib" ;;
4351 if test "x$ORDINARY_LINK" = "xyes"; then
4354 AC_DEFINE(ORDINARY_LINK, 1, [Define if the C compiler is the linker.])
4356 ## The system files defining neither ORDINARY_LINK nor LD_FIRSTFLAG are:
4357 ## freebsd, gnu-* not on powerpc*|s390x*.
4358 elif test "x$GCC" = "xyes" && test "x$LD_FIRSTFLAG" = "x"; then
4360 ## Versions of GCC >= 2.0 put their library, libgcc.a, in obscure
4361 ## places that are difficult to figure out at make time. Fortunately,
4362 ## these same versions allow you to pass arbitrary flags on to the
4363 ## linker, so there is no reason not to use it as a linker.
4365 ## Well, it is not quite perfect. The "-nostdlib" keeps GCC from
4366 ## searching for libraries in its internal directories, so we have to
4367 ## ask GCC explicitly where to find libgcc.a (LIB_GCC below).
4368 LD_FIRSTFLAG="-nostdlib"
4371 ## FIXME? What setting of EDIT_LDFLAGS should this have?
4372 test "$NS_IMPL_GNUSTEP" = "yes" && LD_FIRSTFLAG="-rdynamic"
4374 AC_SUBST(LD_FIRSTFLAG)
4377 ## FIXME? The logic here is not precisely the same as that above.
4378 ## There is no check here for a pre-defined LD_FIRSTFLAG.
4379 ## Should we only be setting LIB_GCC if LD ~ -nostdlib?
4381 if test "x$GCC" = "xyes" && test "x$ORDINARY_LINK" != "xyes"; then
4384 freebsd|netbsd|openbsd) LIB_GCC= ;;
4387 ## armin76@gentoo.org reported that the lgcc_s flag is necessary to
4388 ## build on ARM EABI under GNU/Linux. (Bug#5518)
4394 ## FIXME? s/gnu-linux.h used to define LIB_GCC as below, then
4395 ## immediately undefine it again and redefine it to empty.
4396 ## Was the C_SWITCH_X_SITE part really necessary?
4397 ## LIB_GCC=`$CC $C_SWITCH_X_SITE -print-libgcc-file-name`
4403 ## Ask GCC where to find libgcc.a.
4404 *) LIB_GCC=`$CC -print-libgcc-file-name 2> /dev/null` ;;
4409 ## Common for all window systems
4410 if test "$window_system" != "none"; then
4411 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4412 AC_DEFINE(HAVE_MOUSE, 1, [Define if you have mouse support.])
4413 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4416 AC_SUBST(WINDOW_SYSTEM_OBJ)
4418 AH_TOP([/* GNU Emacs site configuration template file.
4420 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2012
4421 Free Software Foundation, Inc.
4423 This file is part of GNU Emacs.
4425 GNU Emacs is free software: you can redistribute it and/or modify
4426 it under the terms of the GNU General Public License as published by
4427 the Free Software Foundation, either version 3 of the License, or
4428 (at your option) any later version.
4430 GNU Emacs is distributed in the hope that it will be useful,
4431 but WITHOUT ANY WARRANTY; without even the implied warranty of
4432 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4433 GNU General Public License for more details.
4435 You should have received a copy of the GNU General Public License
4436 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4439 /* No code in Emacs #includes config.h twice, but some bits of code
4440 intended to work with other packages as well (like gmalloc.c)
4441 think they can include it as many times as they like. */
4442 #ifndef EMACS_CONFIG_H
4443 #define EMACS_CONFIG_H
4446 AH_BOTTOM([#include <conf_post.h>
4448 #endif /* EMACS_CONFIG_H */
4457 #### Report on what we decided to do.
4458 #### Report GTK as a toolkit, even if it doesn't use Xt.
4459 #### It makes printing result more understandable as using GTK sets
4460 #### toolkit_scroll_bars to yes by default.
4461 if test "${HAVE_GTK}" = "yes"; then
4462 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
4466 Configured for \`${canonical}'.
4468 Where should the build process find the source code? ${srcdir}
4469 What compiler should emacs be built with? ${CC} ${CFLAGS}
4470 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4471 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4472 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4473 What window system should Emacs use? ${window_system}
4474 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4476 if test -n "${x_includes}"; then
4477 echo " Where do we find X Windows header files? ${x_includes}"
4479 echo " Where do we find X Windows header files? Standard dirs"
4481 if test -n "${x_libraries}"; then
4482 echo " Where do we find X Windows libraries? ${x_libraries}"
4484 echo " Where do we find X Windows libraries? Standard dirs"
4487 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4488 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4489 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4490 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4491 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4492 echo " Does Emacs use -lpng? ${HAVE_PNG}"
4493 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4494 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4496 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4497 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4498 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4499 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4500 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4501 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4502 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4504 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4505 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4506 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
4507 echo " Does Emacs use -lxft? ${HAVE_XFT}"
4509 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
4511 echo " Does Emacs support Xwidgets? ${HAVE_XWIDGETS}"
4512 echo " Does xwidgets support webkit(requires gtk3)? ${HAVE_WEBKIT}"
4513 echo " Does xwidgets support gobject introspection? ${HAVE_GIR}"
4514 echo " Does xwidgets support clutter(demo code)? ${HAVE_CLUTTER}"
4515 echo " Does xwidgets support goocanvas(demo code)? ${HAVE_GOOCANVAS}"
4518 if test -n "${EMACSDATA}"; then
4519 echo " Environment variable EMACSDATA set to: $EMACSDATA"
4521 if test -n "${EMACSDOC}"; then
4522 echo " Environment variable EMACSDOC set to: $EMACSDOC"
4527 if test "$HAVE_NS" = "yes"; then
4529 echo "You must run \"${MAKE-make} install\" in order to test the built application.
4530 The installed application will go to nextstep/Emacs.app and can be
4531 run or moved from there."
4532 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
4533 echo "The application will be fully self-contained."
4535 echo "The lisp resources for the application will be installed under ${prefix}.
4536 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
4537 to run if these resources are not installed."
4542 if test "${opsys}" = "cygwin"; then
4544 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
4550 # Remove any trailing slashes in these variables.
4551 [test "${prefix}" != NONE &&
4552 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
4553 test "${exec_prefix}" != NONE &&
4554 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
4556 if test "$HAVE_NS" = "yes"; then
4557 if test "$NS_IMPL_GNUSTEP" = yes; then
4558 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
4559 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
4561 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
4562 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
4566 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
4567 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
4568 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
4569 dnl (else you get "no `Makefile.am' found for any configure output").
4570 dnl This will work, but you get a config.status that is not quite right
4571 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
4572 dnl That doesn't have any obvious consequences for Emacs, but on the whole
4573 dnl it seems better to just live with the duplication.
4574 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"
4576 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
4577 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
4578 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
4579 leim/Makefile nextstep/Makefile])
4581 dnl test/ is not present in release tarfiles.
4582 opt_makefile=test/automated/Makefile
4584 if test -f $srcdir/${opt_makefile}.in; then
4585 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4586 dnl Again, it's best not to use a variable. Though you can add
4587 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
4588 AC_CONFIG_FILES([test/automated/Makefile])
4592 dnl admin/ may or may not be present.
4593 opt_makefile=admin/unidata/Makefile
4595 if test -f $srcdir/${opt_makefile}.in; then
4596 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4597 AC_CONFIG_FILES([admin/unidata/Makefile])
4601 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
4603 AC_SUBST(SUBDIR_MAKEFILES_IN)
4605 dnl Make the necessary directories, if they don't exist.
4606 AC_CONFIG_COMMANDS([mkdirs], [
4607 for dir in etc lisp ; do
4608 test -d ${dir} || mkdir ${dir}
4612 dnl You might wonder (I did) why epaths.h is generated by running make,
4613 dnl rather than just letting configure generate it from epaths.in.
4614 dnl One reason is that the various paths are not fully expanded (see above);
4615 dnl eg gamedir=${prefix}/var/games/emacs.
4616 dnl Secondly, the GNU Coding standards require that one should be able
4617 dnl to run `make prefix=/some/where/else' and override the values set
4618 dnl by configure. This also explains the `move-if-change' test and
4619 dnl the use of force in the `epaths-force' rule in Makefile.in.
4620 AC_CONFIG_COMMANDS([epaths], [
4621 echo creating src/epaths.h
4622 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
4623 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS"])
4625 AC_CONFIG_COMMANDS([gdbinit], [
4626 if test ! -f src/.gdbinit && test -f $srcdir/src/.gdbinit; then
4627 echo creating src/.gdbinit
4628 echo source $srcdir/src/.gdbinit > src/.gdbinit