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, 24.1.50)
26 AC_CONFIG_HEADER(src/config.h:src/config.in)
27 AC_CONFIG_SRCDIR(src/lisp.h)
28 AC_CONFIG_AUX_DIR(build-aux)
31 dnl Support for --program-prefix, --program-suffix and
32 dnl --program-transform-name options
35 dnl It is important that variables on the RHS not be expanded here,
36 dnl hence the single quotes. This is per the GNU coding standards, see
37 dnl (autoconf) Installation Directory Variables
38 dnl See also epaths.h below.
39 lispdir='${datadir}/emacs/${version}/lisp'
40 leimdir='${datadir}/emacs/${version}/leim'
41 standardlisppath='${lispdir}:${leimdir}'
42 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
43 '${datadir}/emacs/site-lisp'
44 lisppath='${locallisppath}:${standardlisppath}'
45 etcdir='${datadir}/emacs/${version}/etc'
46 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
47 docdir='${datadir}/emacs/${version}/etc'
48 gamedir='${localstatedir}/games/emacs'
50 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
51 dnl Create a new --with option that defaults to being disabled.
52 dnl NAME is the base name of the option. The shell variable with_NAME
53 dnl will be set to either the user's value (if the option is
54 dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
55 dnl option is not specified). Note that the shell variable name is
56 dnl constructed as autoconf does, by replacing non-alphanumeric
57 dnl characters with "_".
58 dnl HELP-STRING is the help text for the option.
59 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
60 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
61 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
64 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
65 dnl Create a new --with option that defaults to being enabled. NAME
66 dnl is the base name of the option. The shell variable with_NAME
67 dnl will be set either to 'no' (for a plain --without-NAME) or to
68 dnl 'yes' (if the option is not specified). Note that the shell
69 dnl variable name is constructed as autoconf does, by replacing
70 dnl non-alphanumeric characters with "_".
71 dnl HELP-STRING is the help text for the option.
72 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
73 AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
74 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=yes])dnl
77 OPTION_DEFAULT_ON([pop],[don't support POP mail retrieval with movemail])
78 if test "$with_pop" = yes; then
79 AC_DEFINE(MAIL_USE_POP)
81 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
83 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
84 if test "$with_kerberos" != no; then
88 [Define to support Kerberos-authenticated POP mail retrieval.])dnl
90 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
91 if test "${with_kerberos5}" != no; then
92 if test "${with_kerberos}" = no; then
96 AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
99 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
100 dnl FIXME hesiod support may not be present, so it seems like an error
101 dnl to define, or at least use, this unconditionally.
102 if test "$with_hesiod" != no; then
103 AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
106 OPTION_DEFAULT_OFF([mmdf],[support MMDF mailboxes])
107 if test "$with_mmdf" != no; then
108 AC_DEFINE(MAIL_USE_MMDF, 1, [Define to support MMDF mailboxes in movemail.])
111 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
112 if test "$with_mail_unlink" != no; then
113 AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
116 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
117 [string giving default POP mail host])],
118 AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
120 OPTION_DEFAULT_ON([sound],[don't compile with sound support])
122 OPTION_DEFAULT_ON([sync-input],[process async input synchronously])
123 if test "$with_sync_input" = yes; then
124 AC_DEFINE(SYNC_INPUT, 1, [Process async input synchronously.])
127 dnl FIXME currently it is not the last.
128 dnl This should be the last --with option, because --with-x is
129 dnl added later on when we find the path of X, and it's best to
130 dnl keep them together visually.
131 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
132 [use an X toolkit (KIT one of: yes or gtk, gtk3, lucid or athena, motif, no)])],
133 [ case "${withval}" in
134 y | ye | yes ) val=gtk ;;
136 l | lu | luc | luci | lucid ) val=lucid ;;
137 a | at | ath | athe | athen | athena ) val=athena ;;
138 m | mo | mot | moti | motif ) val=motif ;;
139 g | gt | gtk ) val=gtk ;;
142 AC_MSG_ERROR([`--with-x-toolkit=$withval' is invalid;
143 this option's value should be `yes', `no', `lucid', `athena', `motif', `gtk' or
144 `gtk3'. `yes' and `gtk' are synonyms. `athena' and `lucid' are synonyms.])
150 OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit)])
151 if test "$with_wide_int" = yes; then
152 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
155 dnl _ON results in a '--without' option in the --help output, so
156 dnl the help text should refer to "don't compile", etc.
157 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
158 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
159 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
160 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
161 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
162 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
163 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
164 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
166 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
167 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
168 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
170 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
171 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
172 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
173 OPTION_DEFAULT_OFF([ns],[use NeXTstep (Cocoa or GNUstep) windowing system])
175 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
176 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
177 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
178 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
179 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
180 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
182 ## For the times when you want to build Emacs but don't have
183 ## a suitable makeinfo, and can live without the manuals.
184 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
185 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
187 ## Makefile.in needs the cache file name.
190 ## This is an option because I do not know if all info/man support
191 ## compressed files, nor how to test if they do so.
192 OPTION_DEFAULT_ON([compress-info],[don't compress the installed Info pages])
193 if test $with_compress_info = yes; then
200 AC_ARG_WITH([pkg-config-prog],dnl
201 [AS_HELP_STRING([--with-pkg-config-prog=PATH],
202 [path to pkg-config for finding GTK and librsvg])])
203 if test "X${with_pkg_config_prog}" != X; then
204 if test "${with_pkg_config_prog}" != yes; then
205 PKG_CONFIG="${with_pkg_config_prog}"
210 AC_ARG_WITH([crt-dir],dnl
211 [AS_HELP_STRING([--with-crt-dir=DIR],[directory containing crtn.o etc.
212 The default is /usr/lib, or /usr/lib64 on some platforms.])])
213 CRT_DIR="${with_crt_dir}"
215 AC_ARG_WITH(gameuser,dnl
216 [AS_HELP_STRING([--with-gameuser=USER],[user for shared game score files])])
217 test "X${with_gameuser}" != X && test "${with_gameuser}" != yes \
218 && gameuser="${with_gameuser}"
219 test "X$gameuser" = X && gameuser=games
221 AC_ARG_WITH([gnustep-conf],dnl
222 [AS_HELP_STRING([--with-gnustep-conf=PATH],[path to GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
223 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
224 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
225 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
226 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
228 AC_ARG_ENABLE(ns-self-contained,
229 [AS_HELP_STRING([--disable-ns-self-contained],
230 [disable self contained build under NeXTstep])],
231 EN_NS_SELF_CONTAINED=$enableval,
232 EN_NS_SELF_CONTAINED=yes)
234 AC_ARG_ENABLE(locallisppath,
235 [AS_HELP_STRING([--enable-locallisppath=PATH],
236 [directories Emacs should search for lisp files specific
238 if test "${enableval}" = "no"; then
240 elif test "${enableval}" != "yes"; then
241 locallisppath=${enableval}
244 AC_ARG_ENABLE(checking,
245 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
246 [enable expensive run-time checks. With LIST,
247 enable only specific categories of checks.
248 Categories are: all,yes,no.
249 Flags are: stringbytes, stringoverrun, stringfreelist,
250 xmallocoverrun, conslist, glyphs])],
251 [ac_checking_flags="${enableval}"],[])
252 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
253 for check in $ac_checking_flags
256 # these set all the flags to specific states
257 yes) ac_enable_checking=1 ;;
258 no) ac_enable_checking= ;
259 ac_gc_check_stringbytes= ;
260 ac_gc_check_string_overrun= ;
261 ac_gc_check_string_free_list= ;
262 ac_xmalloc_overrun= ;
263 ac_gc_check_cons_list= ;
265 all) ac_enable_checking=1 ;
266 ac_gc_check_stringbytes=1 ;
267 ac_gc_check_string_overrun=1 ;
268 ac_gc_check_string_free_list=1 ;
269 ac_xmalloc_overrun=1 ;
270 ac_gc_check_cons_list=1 ;
272 # these enable particular checks
273 stringbytes) ac_gc_check_stringbytes=1 ;;
274 stringoverrun) ac_gc_check_string_overrun=1 ;;
275 stringfreelist) ac_gc_check_string_free_list=1 ;;
276 xmallocoverrun) ac_xmalloc_overrun=1 ;;
277 conslist) ac_gc_check_cons_list=1 ;;
278 glyphs) ac_glyphs_debug=1 ;;
279 *) AC_MSG_ERROR(unknown check category $check) ;;
284 if test x$ac_enable_checking != x ; then
285 AC_DEFINE(ENABLE_CHECKING, 1,
286 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
288 if test x$ac_gc_check_stringbytes != x ; then
289 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
290 [Define this temporarily to hunt a bug. If defined, the size of
291 strings is redundantly recorded in sdata structures so that it can
292 be compared to the sizes recorded in Lisp strings.])
294 if test x$ac_gc_check_string_overrun != x ; then
295 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
296 [Define this to check for short string overrun.])
298 if test x$ac_gc_check_string_free_list != x ; then
299 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
300 [Define this to check the string free list.])
302 if test x$ac_xmalloc_overrun != x ; then
303 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
304 [Define this to check for malloc buffer overrun.])
306 if test x$ac_gc_check_cons_list != x ; then
307 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
308 [Define this to check for errors in cons list.])
310 if test x$ac_glyphs_debug != x ; then
311 AC_DEFINE(GLYPH_DEBUG, 1,
312 [Define this to enable glyphs debugging code.])
315 AC_ARG_ENABLE(check-lisp-object-type,
316 [AS_HELP_STRING([--enable-check-lisp-object-type],
317 [enable compile time checks for the Lisp_Object data type.
318 This is useful for development for catching certain types of bugs.])],
319 if test "${enableval}" != "no"; then
320 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
321 [Define this to enable compile time checks for the Lisp_Object data type.])
325 AC_ARG_ENABLE(profiling,
326 [AS_HELP_STRING([--enable-profiling],
327 [build emacs with profiling support.
328 This might not work on all platforms])],
329 [ac_enable_profiling="${enableval}"],[])
330 if test x$ac_enable_profiling != x ; then
331 PROFILING_CFLAGS="-DPROFILING=1 -pg"
335 AC_SUBST(PROFILING_CFLAGS)
337 AC_ARG_ENABLE(autodepend,
338 [AS_HELP_STRING([--enable-autodepend],
339 [automatically generate dependencies to .h-files.
340 Requires GNU Make and Gcc. Enabled if GNU Make and Gcc is
342 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
344 #### Make srcdir absolute, if it isn't already. It's important to
345 #### avoid running the path through pwd unnecessarily, since pwd can
346 #### give you automounter prefixes, which can go away. We do all this
347 #### so Emacs can find its files when run uninstalled.
348 ## Make sure CDPATH doesn't affect cd (in case PWD is relative).
353 ## We may be able to use the $PWD environment variable to make this
354 ## absolute. But sometimes PWD is inaccurate.
355 ## Note: we used to use ${PWD} at the end instead of `pwd`,
356 ## but that tested only for a well-formed and valid PWD,
357 ## it did not object when PWD was well-formed and valid but just wrong.
358 if test ".${PWD}" != "." && test ".`(cd ${PWD} ; sh -c pwd)`" = ".`pwd`" ;
362 srcdir="`(cd ${srcdir}; pwd)`"
365 * ) srcdir="`(cd ${srcdir}; pwd)`" ;;
368 #### Given the configuration name, set opsysfile to the
369 #### name of s/*.h file we should use.
371 ### Canonicalize the configuration name.
375 configuration=${host_alias-${build_alias-$host}}
377 dnl This used to use changequote, but, apart from `changequote is evil'
378 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
379 dnl the great gob of text. Thus it's not processed for possible expansion.
380 dnl Just make sure the brackets remain balanced.
382 dnl Since Emacs can't find matching pairs of quotes, boundaries are
383 dnl indicated by comments.
387 ### If you add support for a new configuration, add code to this
388 ### switch statement to recognize your configuration name and select
389 ### the appropriate operating system file.
391 ### You would hope that you could choose an s/*.h
392 ### file based on the operating system portion. However, it turns out
393 ### that each s/*.h file is pretty manufacturer-specific.
394 ### So we basically have to have a special case for each
395 ### configuration name.
397 ### As far as handling version numbers on operating systems is
398 ### concerned, make sure things will fail in a fixable way. If
399 ### /etc/MACHINES doesn't say anything about version numbers, be
400 ### prepared to handle anything reasonably. If version numbers
401 ### matter, be sure /etc/MACHINES says something about it.
404 case "${canonical}" in
406 ## GNU/Linux and similar ports
416 ## FreeBSD kernel + glibc based userland
431 ## Apple Darwin / Mac OS X
433 case "${canonical}" in
440 ## Use fink packages if available.
441 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
442 ## if test -d /sw/include && test -d /sw/lib; then
443 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
444 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
448 ## HP 9000 series 700 and 800, running HP/UX
452 hppa*-hp-hpux1[1-9]* )
454 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
458 rs6000-ibm-aix4.[23]* )
461 powerpc-ibm-aix4.[23]* )
464 rs6000-ibm-aix[56]* )
467 powerpc-ibm-aix[56]* )
471 ## Silicon Graphics machines
475 # Without defining _LANGUAGE_C, things get masked out in the headers
476 # so that, for instance, grepping for `free' in stdlib.h fails and
477 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
478 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
483 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
484 | x86_64-*-solaris2* | x86_64-*-sunos5*)
485 case "${canonical}" in
487 amd64-*-*|x86_64-*-*) ;;
491 case "${canonical}" in
492 *-sunos5.6* | *-solaris2.6* )
496 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
498 emacs_check_sunpro_c=yes
500 *-sunos5* | *-solaris* )
502 emacs_check_sunpro_c=yes
505 ## Watch out for a compiler that we know will not work.
506 case "${canonical}" in
507 *-solaris* | *-sunos5* )
508 if [ "x$CC" = x/usr/ucb/cc ]; then
509 ## /usr/ucb/cc doesn't work;
510 ## we should find some other compiler that does work.
518 ## Intel 386 machines where we don't care about the manufacturer.
520 case "${canonical}" in
521 *-cygwin ) opsys=cygwin ;;
522 *-darwin* ) opsys=darwin ;;
523 *-sysv4.2uw* ) opsys=unixware ;;
524 *-sysv5uw* ) opsys=unixware ;;
525 *-sysv5OpenUNIX* ) opsys=unixware ;;
526 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
535 ### If the code above didn't choose an operating system, just choose
536 ### an operating system based on the configuration name. You really
537 ### only want to use this when you have no idea what the right
538 ### operating system is; if you know what operating systems a machine
539 ### runs, it's cleaner to make it explicit in the case statement
541 if test x"${opsys}" = x; then
542 case "${canonical}" in
543 *-gnu* ) opsys=gnu ;;
553 if test $unported = yes; then
554 AC_MSG_ERROR([Emacs hasn't been ported to `${canonical}' systems.
555 Check `etc/MACHINES' for recognized configuration names.])
558 opsysfile="s/${opsys}.h"
561 #### Choose a compiler.
563 dnl Sets GCC=yes if using gcc.
567 if test x$GCC = xyes; then
568 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
570 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
573 # Initialize gnulib right after choosing the compiler.
576 AC_ARG_ENABLE([gcc-warnings],
577 [AS_HELP_STRING([--enable-gcc-warnings],
578 [turn on lots of GCC warnings. This is intended for
579 developers, and may generate false alarms when used
580 with older or non-GNU development tools.])],
583 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
585 gl_gcc_warnings=$enableval],
589 AC_ARG_ENABLE(link-time-optimization,
590 [AS_HELP_STRING([--enable-link-time-optimization],
591 [build emacs with link-time optimization.
592 This is supported only for GCC since 4.5.0.])],
593 if test "${enableval}" != "no"; then
594 AC_MSG_CHECKING([whether link-time optimization is supported])
596 if test x$GCC = xyes; then
597 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
598 if test x$CPUS != x; then
604 CFLAGS="$CFLAGS $LTO"
605 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
606 [ac_lto_supported=yes], [ac_lto_supported=no])
609 AC_MSG_RESULT([$ac_lto_supported])
610 if test "$ac_lto_supported" = "yes"; then
611 CFLAGS="$CFLAGS $LTO"
615 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
616 # ------------------------------------------------
617 # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
618 # Otherwise, run RUN-IF-NOT-FOUND.
619 AC_DEFUN([gl_GCC_VERSION_IFELSE],
623 #if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
626 # error "your version of gcc is older than $1.$2"
633 # When compiling with GCC, prefer -isystem to -I when including system
634 # include files, to avoid generating useless diagnostics for the files.
635 if test "$gl_gcc_warnings" != yes; then
640 # This, $nw, is the list of warnings we disable.
643 case $with_x_toolkit in
644 lucid | athena | motif)
645 # Old toolkits mishandle 'const'.
646 nw="$nw -Wwrite-strings"
649 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
652 AC_SUBST([WERROR_CFLAGS])
654 nw="$nw -Waggregate-return" # anachronistic
655 nw="$nw -Wlong-long" # C90 is anachronistic
656 nw="$nw -Wc++-compat" # We don't care about C++ compilers
657 nw="$nw -Wundef" # Warns on '#if GNULIB_FOO' etc in gnulib
658 nw="$nw -Wtraditional" # Warns on #elif which we use often
659 nw="$nw -Wcast-qual" # Too many warnings for now
660 nw="$nw -Wconversion" # Too many warnings for now
661 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
662 nw="$nw -Wsign-conversion" # Too many warnings for now
663 nw="$nw -Woverlength-strings" # Not a problem these days
664 nw="$nw -Wtraditional-conversion" # Too many warnings for now
665 nw="$nw -Wunreachable-code" # so buggy that it's now silently ignored
666 nw="$nw -Wpadded" # Our structs are not padded
667 nw="$nw -Wredundant-decls" # we regularly (re)declare functions
668 nw="$nw -Wlogical-op" # any use of fwrite provokes this
669 nw="$nw -Wformat-nonliteral" # we do this a lot
670 nw="$nw -Wvla" # warnings in gettext.h
671 nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
672 nw="$nw -Wswitch-enum" # Too many warnings for now
673 nw="$nw -Wswitch-default" # Too many warnings for now
674 nw="$nw -Wfloat-equal" # warns about high-quality code
675 nw="$nw -Winline" # OK to ignore 'inline'
676 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
677 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
679 # Emacs doesn't care about shadowing; see
680 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
683 # The following lines should be removable at some point.
684 nw="$nw -Wstack-protector"
685 nw="$nw -Wstrict-overflow"
686 nw="$nw -Wsuggest-attribute=pure"
688 gl_MANYWARN_ALL_GCC([ws])
689 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
693 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
694 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
695 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
696 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
697 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
698 gl_WARN_ADD([-Wno-format-nonliteral])
700 # In spite of excluding -Wlogical-op above, it is enabled, as of
701 # gcc 4.5.0 20090517.
702 gl_WARN_ADD([-Wno-logical-op])
704 gl_WARN_ADD([-fdiagnostics-show-option])
705 gl_WARN_ADD([-funit-at-a-time])
707 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
708 AC_DEFINE([_FORTIFY_SOURCE], [2],
709 [enable compile-time and run-time bounds-checking, and some warnings])
710 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
712 # We use a slightly smaller set of warning options for lib/.
713 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
715 nw="$nw -Wunused-macros"
717 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
718 AC_SUBST([GNULIB_WARN_CFLAGS])
723 dnl Some other nice autoconf tests.
724 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
727 dnl if test "x$RANLIB" = x; then
731 AC_PATH_PROG(INSTALL_INFO, install-info, :,
732 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
733 dnl Don't use GZIP, which is used by gzip for additional parameters.
734 AC_PATH_PROG(GZIP_PROG, gzip)
736 if test $opsys = gnu-linux; then
737 AC_PATH_PROG(PAXCTL, paxctl,,
738 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
741 ## Need makeinfo >= 4.7 (?) to build the manuals.
742 AC_PATH_PROG(MAKEINFO, makeinfo, no)
743 dnl By this stage, configure has already checked for egrep and set EGREP,
744 dnl or exited with an error if no egrep was found.
745 if test "$MAKEINFO" != "no" && \
746 test x"`$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
750 ## Makeinfo is unusual. For a released Emacs, the manuals are
751 ## pre-built, and not deleted by the normal clean rules. makeinfo is
752 ## therefore in the category of "special tools" not normally required, which
753 ## configure does not have to check for (eg autoconf itself).
754 ## In a Bazaar checkout on the other hand, the manuals are not included.
755 ## So makeinfo is a requirement to build from Bazaar, and configure
756 ## should test for it as it does for any other build requirement.
757 ## We use the presence of $srcdir/info/emacs to distinguish a release,
758 ## with pre-built manuals, from a Bazaar checkout.
761 if test "$MAKEINFO" = "no"; then
763 if test "x${with_makeinfo}" = "xno"; then
765 elif test ! -e $srcdir/info/emacs; then
766 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
767 source tree does not seem to have pre-built manuals in the `info' directory.
768 Either install a suitable version of makeinfo, or re-run configure
769 with the `--without-makeinfo' option to build without the manuals.] )
772 AC_SUBST(HAVE_MAKEINFO)
774 dnl Just so that there is only a single place we need to edit.
780 dnl Add our options to ac_link now, after it is set up.
782 if test x$GCC = xyes; then
783 test "x$GCC_LINK_TEST_OPTIONS" != x && \
784 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
786 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
787 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
790 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
791 dnl If we can link with the flag, it shouldn't do any harm anyhow.
792 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
793 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
794 dnl if not built to support GNU ld.
796 late_LDFLAGS=$LDFLAGS
797 if test x$GCC = xyes; then
798 LDFLAGS="$LDFLAGS -Wl,-znocombreloc"
800 LDFLAGS="$LDFLAGS -znocombreloc"
803 AC_MSG_CHECKING([for -znocombreloc])
804 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
805 [AC_MSG_RESULT(yes)],
806 LDFLAGS=$late_LDFLAGS
810 dnl The function dump-emacs will not be defined and temacs will do
811 dnl (load "loadup") automatically unless told otherwise.
812 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
814 your-opsys-here) CANNOT_DUMP=yes ;;
817 test "$CANNOT_DUMP" = "yes" && \
818 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
820 AC_SUBST(CANNOT_DUMP)
825 # MSDOS uses unexcoff.o
826 # MSWindows uses unexw32.o
834 UNEXEC_OBJ=unexmacosx.o
837 UNEXEC_OBJ=unexhp9k800.o
840 # Use the Solaris dldump() function, called from unexsol.c, to dump
841 # emacs, instead of the generic ELF dump code found in unexelf.c.
842 # The resulting binary has a complete symbol table, and is better
843 # for debugging and other observability tools (debuggers, pstack, etc).
845 # If you encounter a problem using dldump(), please consider sending
846 # a message to the OpenSolaris tools-linking mailing list:
847 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
849 # It is likely that dldump() works with older Solaris too, but this has
850 # not been tested, so for now this change is for Solaris 10 or newer.
858 ## Let `ld' find image libs and similar things in /usr/local/lib.
859 ## The system compiler, GCC, has apparently been modified to not
860 ## look there, contrary to what a stock GCC would do.
861 ### It's not our place to do this. See bug#10313#17.
862 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
867 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
868 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
872 ### It's not our place to do this. See bug#10313#17.
873 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
878 ## Han Boetes <han@mijncomputer.nl> says this is necessary,
879 ## otherwise Emacs dumps core on elf systems.
880 LD_SWITCH_SYSTEM="-Z"
883 AC_SUBST(LD_SWITCH_SYSTEM)
885 ac_link="$ac_link $LD_SWITCH_SYSTEM"
887 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
888 ## which has not been defined yet. When this was handled with cpp,
889 ## it was expanded to null when configure sourced the s/*.h file.
890 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
891 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
892 ## (or somesuch), but because it is supposed to go at the _front_
893 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
894 ## Compare with the gnu-linux case below, which added to the end
895 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
896 ## LD_SWITCH_SYSTEM_TEMACS.
899 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
906 AC_CHECK_DECL([__ELF__])
907 if test "$ac_cv_have_decl___ELF__" = "yes"; then
908 ## With ELF, make sure that all common symbols get allocated to in the
909 ## data section. Otherwise, the dump of temacs may miss variables in
910 ## the shared library that have been initialized. For example, with
911 ## GNU libc, __malloc_initialized would normally be resolved to the
912 ## shared library's .bss section, which is fatal.
913 if test "x$GCC" = "xyes"; then
914 C_SWITCH_MACHINE="-fno-common"
916 AC_MSG_ERROR([What gives? Fix me if DEC Unix supports ELF now.])
919 UNEXEC_OBJ=unexalpha.o
923 AC_SUBST(C_SWITCH_MACHINE)
928 ## Some programs in src produce warnings saying certain subprograms
929 ## are too complex and need a MAXMEM value greater than 2000 for
930 ## additional optimization. --nils@exp-math.uni-essen.de
931 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
932 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
933 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
934 ## It is redundant in glibc2, since we define _GNU_SOURCE.
935 AC_SUBST(C_SWITCH_SYSTEM)
940 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
941 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
943 freebsd) LIBS_SYSTEM="-lutil" ;;
945 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
947 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
949 ## Motif needs -lgen.
950 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
952 AC_SUBST(LIBS_SYSTEM)
955 ### Make sure subsequent tests use flags consistent with the build flags.
957 if test x"${OVERRIDE_CPPFLAGS}" != x; then
958 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
960 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
963 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C89 or better.
964 AC_DEFUN([AC_TYPE_SIZE_T])
965 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
966 AC_DEFUN([AC_TYPE_UID_T])
972 dnl Current possibilities handled by sed (aix4-2 -> aix,
973 dnl gnu-linux -> gnu/linux, etc.):
974 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
975 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
976 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
978 dnl NB do not use CRT_DIR unquoted here, since it might not be set yet.
982 START_FILES='pre-crt0.o'
985 ## Adding -lm confuses the dynamic linker, so omit it.
987 START_FILES='pre-crt0.o'
990 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o $(CRT_DIR)/crtn.o'
991 START_FILES='pre-crt0.o $(CRT_DIR)/crt1.o $(CRT_DIR)/crti.o $(CRT_DIR)/crtbegin.o'
992 SYSTEM_TYPE=berkeley-unix
994 gnu-linux | gnu-kfreebsd )
995 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtn.o'
996 START_FILES='pre-crt0.o $(CRT_DIR)/crt1.o $(CRT_DIR)/crti.o'
1000 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o'
1002 dnl NB this may be adjusted below.
1004 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o'
1005 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o $(CRT_DIR)/crtbegin.o'
1006 SYSTEM_TYPE=berkeley-unix
1010 SYSTEM_TYPE=usg-unix-v
1016 AC_SUBST(START_FILES)
1017 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1018 [The type of system you are compiling for; sets `system-type'.])
1020 dnl Not all platforms use crtn.o files. Check if the current one does.
1023 for file in x $LIB_STANDARD $START_FILES; do
1025 *CRT_DIR*) crt_files="$crt_files `echo $file | sed -e 's|.*/||'`" ;;
1029 if test "x$crt_files" != x; then
1031 ## If user specified a crt-dir, use that unconditionally.
1034 if test "X$CRT_DIR" = "X"; then
1036 CRT_DIR=/usr/lib # default
1038 case "$canonical" in
1039 x86_64-*-linux-gnu* | s390x-*-linux-gnu*)
1040 ## On x86-64 and s390x GNU/Linux distributions, the standard library
1041 ## can be in a variety of places. We only try /usr/lib64 and /usr/lib.
1042 ## For anything else (eg /usr/lib32), it is up the user to specify
1043 ## the location (bug#5655).
1044 ## Test for crtn.o, not just the directory, because sometimes the
1045 ## directory exists but does not have the relevant files (bug#1287).
1046 ## FIXME better to test for binary compatibility somehow.
1047 test -e /usr/lib64/crtn.o && CRT_DIR=/usr/lib64
1050 powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*) CRT_DIR=/usr/lib64 ;;
1054 hpux10-20) CRT_DIR=/lib ;;
1057 test "x${GCC}" = xyes && crt_gcc=yes
1063 for file in $crt_files; do
1065 ## If we're using gcc, try to determine it automatically by asking
1066 ## gcc. [If this doesn't work, CRT_DIR will remain at the
1067 ## system-dependent default from above.]
1068 if test $crt_gcc = yes && test ! -e $CRT_DIR/$file; then
1070 crt_file=`$CC --print-file-name=$file 2>/dev/null`
1073 CRT_DIR=`AS_DIRNAME(["$crt_file"])`
1078 dnl We expect all the files to be in a single directory, so after the
1079 dnl first there is no point asking gcc.
1082 test -e $CRT_DIR/$file || crt_missing="$crt_missing $file"
1085 test "x$crt_missing" = x || \
1086 AC_MSG_ERROR([Required file(s) not found:$crt_missing
1087 Try using the --with-crt-dir option.])
1089 fi # crt_files != ""
1095 if test -f $CRT_DIR/crti.o; then
1097 test -f $CRT_DIR/crtn.o || \
1098 AC_MSG_ERROR([Required file not found: crtn.o])
1100 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o $(CRT_DIR)/crtn.o'
1101 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o $(CRT_DIR)/crti.o $(CRT_DIR)/crtbegin.o'
1107 # Configure gnulib before invoking PKG_CHECK_MODULES, as the latter might
1108 # for example add -lrt to RSVG_LIBS, which would then cause gnulib to
1109 # incorrectly conclude that -lrt is not needed to link clock_gettime.
1110 gl_ASSERT_NO_GNULIB_POSIXCHECK
1111 gl_ASSERT_NO_GNULIB_TESTS
1114 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
1116 dnl This function definition taken from Gnome 2.0
1117 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
1118 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
1119 dnl also defines GSTUFF_PKG_ERRORS on error
1120 AC_DEFUN([PKG_CHECK_MODULES], [
1123 if test "$PKG_CONFIG" = "no" ; then
1124 ifelse([$4], , [AC_MSG_ERROR([
1125 *** 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])
1127 PKG_CONFIG_MIN_VERSION=0.9.0
1128 if $PKG_CONFIG --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
1129 AC_MSG_CHECKING(for $2)
1131 if $PKG_CONFIG --exists "$2" 2>&AS_MESSAGE_LOG_FD &&
1132 $1_CFLAGS=`$PKG_CONFIG --cflags "$2" 2>&AS_MESSAGE_LOG_FD` &&
1133 $1_LIBS=`$PKG_CONFIG --libs "$2" 2>&AS_MESSAGE_LOG_FD`; then
1140 $1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1141 $1_LIBS=`AS_ECHO(["$$1_LIBS"]) | sed -e 's,///*,/,g'`
1142 AC_MSG_RESULT([yes CFLAGS='$$1_CFLAGS' LIBS='$$1_LIBS'])
1148 ## If we have a custom action on failure, don't print errors, but
1149 ## do set a variable so people can do so.
1150 $1_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "$2"`
1151 ifelse([$4], ,echo $$1_PKG_ERRORS,)
1157 echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
1158 echo "*** See http://www.freedesktop.org/software/pkgconfig"
1162 if test $succeeded = yes; then
1163 ifelse([$3], , :, [$3])
1165 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])
1170 if test "${with_sound}" != "no"; then
1171 # Sound support for GNU/Linux and the free BSDs.
1172 AC_CHECK_HEADERS(machine/soundcard.h sys/soundcard.h soundcard.h,
1173 have_sound_header=yes)
1174 # Emulation library used on NetBSD.
1175 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1179 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1180 PKG_CHECK_MODULES(ALSA, $ALSA_MODULES, HAVE_ALSA=yes, HAVE_ALSA=no)
1181 if test $HAVE_ALSA = yes; then
1182 SAVE_CFLAGS="$CFLAGS"
1184 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1185 LIBS="$ALSA_LIBS $LIBS"
1186 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1187 emacs_alsa_normal=yes,
1188 emacs_alsa_normal=no)
1189 if test "$emacs_alsa_normal" != yes; then
1190 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1191 [[snd_lib_error_set_handler (0);]])],
1192 emacs_alsa_subdir=yes,
1193 emacs_alsa_subdir=no)
1194 if test "$emacs_alsa_subdir" != yes; then
1195 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1197 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1200 CFLAGS="$SAVE_CFLAGS"
1202 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1203 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1204 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1207 dnl Define HAVE_SOUND if we have sound support. We know it works and
1208 dnl compiles only on the specified platforms. For others, it
1209 dnl probably doesn't make sense to try.
1210 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1212 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1213 gnu-linux|freebsd|netbsd)
1214 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1219 AC_SUBST(CFLAGS_SOUND)
1222 dnl checks for header files
1223 AC_CHECK_HEADERS_ONCE(
1224 linux/version.h sys/systeminfo.h
1225 stdio_ext.h fcntl.h coff.h pty.h
1226 sys/vlimit.h sys/resource.h
1227 sys/utsname.h pwd.h utmp.h dirent.h util.h)
1229 AC_MSG_CHECKING(if personality LINUX32 can be set)
1230 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1231 emacs_cv_personality_linux32=yes,
1232 emacs_cv_personality_linux32=no)
1233 AC_MSG_RESULT($emacs_cv_personality_linux32)
1235 if test $emacs_cv_personality_linux32 = yes; then
1236 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1237 [Define to 1 if personality LINUX32 can be set.])
1240 dnl On Solaris 8 there's a compilation warning for term.h because
1241 dnl it doesn't define `bool'.
1242 AC_CHECK_HEADERS(term.h, , , -)
1244 AC_CHECK_DECLS([sys_siglist])
1245 if test $ac_cv_have_decl_sys_siglist != yes; then
1246 # For Tru64, at least:
1247 AC_CHECK_DECLS([__sys_siglist])
1248 if test $ac_cv_have_decl___sys_siglist = yes; then
1249 AC_DEFINE(sys_siglist, __sys_siglist,
1250 [Define to any substitute for sys_siglist.])
1255 dnl Check for speed_t typedef.
1256 AC_CACHE_CHECK(for speed_t, emacs_cv_speed_t,
1257 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <termios.h>]], [[speed_t x = 1;]])],
1258 emacs_cv_speed_t=yes, emacs_cv_speed_t=no)])
1259 if test $emacs_cv_speed_t = yes; then
1260 AC_DEFINE(HAVE_SPEED_T, 1,
1261 [Define to 1 if `speed_t' is declared by <termios.h>.])
1264 AC_CACHE_CHECK(for struct exception, emacs_cv_struct_exception,
1265 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <math.h>]],
1266 [[static struct exception x; x.arg1 = x.arg2 = x.retval; x.name = ""; x.type = 1;]])],
1267 emacs_cv_struct_exception=yes, emacs_cv_struct_exception=no))
1268 HAVE_EXCEPTION=$emacs_cv_struct_exception
1269 dnl Define on Darwin so emacs symbols will not conflict with those
1270 dnl in the System framework. Otherwise -prebind will not work.
1271 if test $emacs_cv_struct_exception != yes || test $opsys = darwin; then
1272 AC_DEFINE(NO_MATHERR, 1, [Define to 1 if you don't have struct exception in math.h.])
1275 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1276 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1277 #if HAVE_SYS_SOCKET_H
1278 #include <sys/socket.h>
1280 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1281 #if HAVE_SYS_SOCKET_H
1282 #include <sys/socket.h>
1284 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1285 #if HAVE_SYS_SOCKET_H
1286 #include <sys/socket.h>
1289 dnl checks for structure members
1290 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1291 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1292 struct ifreq.ifr_addr,
1293 struct ifreq.ifr_addr.sa_len], , ,
1294 [AC_INCLUDES_DEFAULT
1295 #if HAVE_SYS_SOCKET_H
1296 #include <sys/socket.h>
1302 dnl Check for endianness.
1303 dnl AC_C_BIGENDIAN is done by gnulib.
1305 AC_CACHE_CHECK([for __attribute__ ((__aligned__ (expr)))],
1306 [emacs_cv_attribute_aligned],
1309 [[char __attribute__ ((__aligned__ (1 << 3))) c;]],
1311 [emacs_cv_attribute_aligned=yes],
1312 [emacs_cv_attribute_aligned=no])])
1313 if test $emacs_cv_attribute_aligned = yes; then
1314 AC_DEFINE([HAVE_ATTRIBUTE_ALIGNED], 1,
1315 [Define to 1 if GCC-style __attribute__ ((__aligned__ (expr))) works.])
1318 dnl check for Make feature
1319 dnl AC_PROG_MAKE_SET is done by Automake.
1324 dnl check for GNU Make if we have GCC and autodepend is on.
1325 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1326 AC_MSG_CHECKING([whether we are using GNU Make])
1328 testval=`${MAKE-make} --version 2>/dev/null | grep 'GNU Make'`
1329 if test "x$testval" != x; then
1332 ac_enable_autodepend=no
1334 AC_MSG_RESULT([$HAVE_GNU_MAKE])
1335 if test $HAVE_GNU_MAKE = yes; then
1336 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1337 SAVE_CFLAGS="$CFLAGS"
1338 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1339 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1340 CFLAGS="$SAVE_CFLAGS"
1341 test -f deps.d || ac_enable_autodepend=no
1343 AC_MSG_RESULT([$ac_enable_autodepend])
1345 if test $ac_enable_autodepend = yes; then
1346 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1347 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1348 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1349 deps_frag=autodeps.mk
1352 deps_frag=$srcdir/src/$deps_frag
1355 AC_SUBST_FILE(deps_frag)
1358 lisp_frag=$srcdir/src/lisp.mk
1359 AC_SUBST_FILE(lisp_frag)
1362 dnl checks for operating system services
1363 AC_SYS_LONG_FILE_NAMES
1365 #### Choose a window system.
1368 if test "$no_x" = yes; then
1374 LD_SWITCH_X_SITE_RPATH=
1375 if test "${x_libraries}" != NONE; then
1376 if test -n "${x_libraries}"; then
1377 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1378 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1380 x_default_search_path=""
1381 x_search_path=${x_libraries}
1382 if test -z "${x_search_path}"; then
1383 x_search_path=/usr/lib
1385 for x_library in `echo ${x_search_path}: | \
1386 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1388 ${x_library}/X11/%L/%T/%N%C%S:\
1389 ${x_library}/X11/%l/%T/%N%C%S:\
1390 ${x_library}/X11/%T/%N%C%S:\
1391 ${x_library}/X11/%L/%T/%N%S:\
1392 ${x_library}/X11/%l/%T/%N%S:\
1393 ${x_library}/X11/%T/%N%S"
1394 if test x"${x_default_search_path}" = x; then
1395 x_default_search_path=${x_search_path}
1397 x_default_search_path="${x_search_path}:${x_default_search_path}"
1401 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1403 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1404 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1407 if test x"${x_includes}" = x; then
1408 bitmapdir=/usr/include/X11/bitmaps
1410 # accumulate include directories that have X11 bitmap subdirectories
1412 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1413 if test -d "${bmd}/X11/bitmaps"; then
1414 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1416 if test -d "${bmd}/bitmaps"; then
1417 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1420 if test ${bmd_acc} != "dummyval"; then
1421 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1428 tmp_CPPFLAGS="$CPPFLAGS"
1429 tmp_CFLAGS="$CFLAGS"
1430 CPPFLAGS="$CPPFLAGS -x objective-c"
1431 CFLAGS="$CFLAGS -x objective-c"
1432 TEMACS_LDFLAGS2="\${LDFLAGS}"
1434 if test "${with_ns}" != no; then
1435 if test "${opsys}" = darwin; then
1437 ns_appdir=`pwd`/nextstep/Emacs.app
1438 ns_appbindir=${ns_appdir}/Contents/MacOS
1439 ns_appresdir=${ns_appdir}/Contents/Resources
1440 ns_appsrc=${srcdir}/nextstep/Cocoa/Emacs.base
1441 elif test -f $GNUSTEP_CONFIG_FILE; then
1443 ns_appdir=`pwd`/nextstep/Emacs.app
1444 ns_appbindir=${ns_appdir}
1445 ns_appresdir=${ns_appdir}/Resources
1446 ns_appsrc=${srcdir}/nextstep/GNUstep/Emacs.base
1447 dnl FIXME sourcing this several times in subshells seems inefficient.
1448 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1449 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1450 dnl I seemed to need these as well with GNUstep-startup 0.25.
1451 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1452 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1453 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1454 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1455 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1456 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1457 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1458 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1459 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1463 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1464 dnl If they had chosen to either define it or not, we could have
1465 dnl just used AC_CHECK_DECL here.
1466 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1467 emacs_cv_objc_exceptions,
1468 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1469 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1473 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1474 if test $emacs_cv_objc_exceptions = yes; then
1475 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1476 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1477 [Define if GNUstep uses ObjC exceptions.])
1478 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1482 dnl This is only used while we test the NS headers, it gets reset below.
1483 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1485 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1486 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1487 files are missing or cannot be compiled.])])
1488 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1490 ns_have_nsinteger=yes,
1491 ns_have_nsinteger=no)
1492 if test $ns_have_nsinteger = yes; then
1493 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1496 AC_SUBST(TEMACS_LDFLAGS2)
1498 INSTALL_ARCH_INDEP_EXTRA=install-etc
1499 ns_self_contained=no
1503 if test "${HAVE_NS}" = yes; then
1504 if test "$with_toolkit_scroll_bars" = "no"; then
1505 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1508 window_system=nextstep
1510 # set up packaging dirs
1511 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1512 ns_self_contained=yes
1513 prefix=${ns_appresdir}
1514 exec_prefix=${ns_appbindir}
1515 dnl This one isn't really used, only archlibdir is.
1516 libexecdir="\${ns_appbindir}/libexec"
1517 archlibdir="\${ns_appbindir}/libexec"
1518 docdir="\${ns_appresdir}/etc"
1519 etcdir="\${ns_appresdir}/etc"
1520 dnl FIXME maybe set datarootdir instead.
1521 dnl That would also get applications, icons, man.
1522 infodir="\${ns_appresdir}/info"
1523 mandir="\${ns_appresdir}/man"
1524 lispdir="\${ns_appresdir}/lisp"
1525 leimdir="\${ns_appresdir}/leim"
1526 INSTALL_ARCH_INDEP_EXTRA=
1528 ns_frag=$srcdir/src/ns.mk
1529 NS_OBJ="fontset.o fringe.o image.o"
1530 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o"
1532 CFLAGS="$tmp_CFLAGS"
1533 CPPFLAGS="$tmp_CPPFLAGS"
1534 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1535 AC_SUBST(ns_self_contained)
1537 AC_SUBST(NS_OBJC_OBJ)
1538 AC_SUBST(LIB_STANDARD)
1539 AC_SUBST_FILE(ns_frag)
1541 case "${window_system}" in
1545 case "${with_x_toolkit}" in
1546 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1547 motif ) USE_X_TOOLKIT=MOTIF ;;
1549 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1550 dnl USE_X_TOOLKIT is set.
1551 USE_X_TOOLKIT=none ;;
1552 gtk3 ) with_gtk3=yes
1553 USE_X_TOOLKIT=none ;;
1554 no ) USE_X_TOOLKIT=none ;;
1555 dnl If user did not say whether to use a toolkit, make this decision later:
1556 dnl use the toolkit if we have gtk, or X11R5 or newer.
1557 * ) USE_X_TOOLKIT=maybe ;;
1567 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1568 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1569 if test "$HAVE_XSERVER" = true ||
1570 test -n "$DISPLAY" ||
1571 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1572 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1573 were found. You should install the relevant development files for X
1574 and for the toolkit you want, such as Gtk+, Lesstif or Motif. Also make
1575 sure you have development files for image handling, i.e.
1576 tiff, gif, jpeg, png and xpm.
1577 If you are sure you want Emacs compiled without X window support, pass
1583 ### If we're using X11, we should use the X menu package.
1586 yes ) HAVE_MENUS=yes ;;
1589 # Does the opsystem file prohibit the use of the GNU malloc?
1590 # Assume not, until told otherwise.
1594 [whether malloc is Doug Lea style],
1595 [emacs_cv_var_doug_lea_malloc],
1598 [[#include <malloc.h>
1599 static void hook (void) {}]],
1600 [[malloc_set_state (malloc_get_state ());
1601 __after_morecore_hook = hook;
1602 __malloc_initialize_hook = hook;]])],
1603 [emacs_cv_var_doug_lea_malloc=yes],
1604 [emacs_cv_var_doug_lea_malloc=no])])
1605 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1608 dnl See comments in aix4-2.h about maybe using system malloc there.
1611 ## darwin ld insists on the use of malloc routines in the System framework.
1612 darwin|sol2-10) system_malloc=yes ;;
1615 if test "${system_malloc}" = "yes"; then
1616 AC_DEFINE(SYSTEM_MALLOC, 1, [Define to use system malloc.])
1619 (The GNU allocators don't work with this system configuration.)"
1623 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1624 VMLIMIT_OBJ=vm-limit.o
1626 AC_SUBST(GMALLOC_OBJ)
1627 AC_SUBST(VMLIMIT_OBJ)
1629 if test "$doug_lea_malloc" = "yes" ; then
1630 if test "$GNU_MALLOC" = yes ; then
1632 (Using Doug Lea's new malloc from the GNU C Library.)"
1634 AC_DEFINE(DOUG_LEA_MALLOC, 1,
1635 [Define to 1 if you are using the GNU C Library.])
1637 ## Use mmap directly for allocating larger buffers.
1638 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
1639 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
1640 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
1642 gnu*) REL_ALLOC=no ;;
1646 if test x"${REL_ALLOC}" = x; then
1647 REL_ALLOC=${GNU_MALLOC}
1650 use_mmap_for_buffers=no
1652 cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
1656 if test $use_mmap_for_buffers = yes; then
1657 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
1661 LIBS="$LIBS_SYSTEM $LIBS"
1663 dnl If found, this defines HAVE_LIBDNET, which m/pmax.h checks,
1664 dnl and also adds -ldnet to LIBS, which Autoconf uses for checks.
1665 AC_CHECK_LIB(dnet, dnet_ntoa)
1666 dnl This causes -lresolv to get used in subsequent tests,
1667 dnl which causes failures on some systems such as HPUX 9.
1668 dnl AC_CHECK_LIB(resolv, gethostbyname)
1670 dnl FIXME replace main with a function we actually want from this library.
1671 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
1673 dnl Check if pthreads is available.
1675 AC_CHECK_HEADERS_ONCE(pthread.h)
1676 if test "$ac_cv_header_pthread_h"; then
1677 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
1678 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
1679 dnl testing for pthread_self if Emacs uses gmalloc.c.
1680 if test "$GMALLOC_OBJ" = gmalloc.o; then
1681 emacs_pthread_function=pthread_atfork
1683 emacs_pthread_function=pthread_self
1685 AC_CHECK_LIB(pthread, $emacs_pthread_function, HAVE_PTHREAD=yes)
1687 if test "$HAVE_PTHREAD" = yes; then
1688 case "${canonical}" in
1690 *) LIB_PTHREAD="-lpthread"
1691 LIBS="$LIB_PTHREAD $LIBS" ;;
1693 AC_DEFINE(HAVE_PTHREAD, 1, [Define to 1 if you have pthread (-lpthread).])
1695 AC_SUBST([LIB_PTHREAD])
1697 AC_CHECK_LIB(pthreads, cma_open)
1699 ## Note: when using cpp in s/aix4.2.h, this definition depended on
1700 ## HAVE_LIBPTHREADS. That was not defined earlier in configure when
1701 ## the system file was sourced. Hence the value of LIBS_SYSTEM
1702 ## added to LIBS in configure would never contain the pthreads part,
1703 ## but the value used in Makefiles might. FIXME?
1705 ## -lpthreads seems to be necessary for Xlib in X11R6, and should
1706 ## be harmless on older versions of X where it happens to exist.
1707 test "$opsys" = "aix4-2" && \
1708 test $ac_cv_lib_pthreads_cma_open = yes && \
1709 LIBS_SYSTEM="$LIBS_SYSTEM -lpthreads"
1711 dnl Check for need for bigtoc support on IBM AIX
1715 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1717 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1718 *) gdb_cv_bigtoc=-bbigtoc ;;
1721 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1722 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
1727 # Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
1728 # used for the tests that follow. We set them back to REAL_CFLAGS and
1729 # REAL_CPPFLAGS later on.
1731 REAL_CFLAGS="$CFLAGS"
1732 REAL_CPPFLAGS="$CPPFLAGS"
1734 if test "${HAVE_X11}" = "yes"; then
1735 DEFS="$C_SWITCH_X_SITE $DEFS"
1736 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
1738 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
1739 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
1741 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
1742 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
1743 # but it's more convenient here to set LD_RUN_PATH since this
1744 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
1745 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
1746 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
1750 if test "${opsys}" = "gnu-linux"; then
1751 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
1752 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1753 [[XOpenDisplay ("foo");]])],
1754 [xgnu_linux_first_failure=no],
1755 [xgnu_linux_first_failure=yes])
1756 if test "${xgnu_linux_first_failure}" = "yes"; then
1757 OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
1758 OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
1759 OLD_CPPFLAGS="$CPPFLAGS"
1761 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
1762 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
1763 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
1764 LIBS="$LIBS -b i486-linuxaout"
1765 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1766 [[XOpenDisplay ("foo");]])],
1767 [xgnu_linux_second_failure=no],
1768 [xgnu_linux_second_failure=yes])
1769 if test "${xgnu_linux_second_failure}" = "yes"; then
1770 # If we get the same failure with -b, there is no use adding -b.
1771 # So take it out. This plays safe.
1772 LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
1773 C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
1774 CPPFLAGS="$OLD_CPPFLAGS"
1785 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
1786 # header files included from there.
1787 AC_MSG_CHECKING(for Xkb)
1788 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
1789 #include <X11/XKBlib.h>]],
1790 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
1791 emacs_xkb=yes, emacs_xkb=no)
1792 AC_MSG_RESULT($emacs_xkb)
1793 if test $emacs_xkb = yes; then
1794 AC_DEFINE(HAVE_XKBGETKEYBOARD, 1, [Define to 1 if you have the XkbGetKeyboard function.])
1797 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
1798 XScreenNumberOfScreen)
1801 if test "${window_system}" = "x11"; then
1802 AC_MSG_CHECKING(X11 version 6)
1803 AC_CACHE_VAL(emacs_cv_x11_version_6,
1804 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
1805 [[#if XlibSpecificationRelease < 6
1808 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
1809 if test $emacs_cv_x11_version_6 = yes; then
1810 AC_MSG_RESULT(6 or newer)
1811 AC_DEFINE(HAVE_X11R6, 1,
1812 [Define to 1 if you have the X11R6 or newer version of Xlib.])
1813 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
1814 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
1818 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
1819 [Define if you have usable X11R6-style XIM support.])
1823 AC_MSG_RESULT(before 6)
1828 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
1830 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes"; then
1831 if test "${with_rsvg}" != "no"; then
1832 RSVG_REQUIRED=2.11.0
1833 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
1835 PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, HAVE_RSVG=yes, :)
1836 AC_SUBST(RSVG_CFLAGS)
1839 if test $HAVE_RSVG = yes; then
1840 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
1841 CFLAGS="$CFLAGS $RSVG_CFLAGS"
1842 LIBS="$RSVG_LIBS $LIBS"
1848 if test "${HAVE_X11}" = "yes"; then
1849 if test "${with_imagemagick}" != "no"; then
1850 ## 6.2.8 is the earliest version known to work, but earlier versions
1851 ## might work - let us know if you find one.
1852 ## 6.0.7 does not work. See bug#7955.
1853 IMAGEMAGICK_MODULE="Wand >= 6.2.8"
1854 PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
1855 AC_SUBST(IMAGEMAGICK_CFLAGS)
1856 AC_SUBST(IMAGEMAGICK_LIBS)
1858 if test $HAVE_IMAGEMAGICK = yes; then
1859 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
1860 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
1861 LIBS="$IMAGEMAGICK_LIBS $LIBS"
1862 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
1870 if test "${with_gtk3}" = "yes"; then
1873 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1875 dnl Checks for libraries.
1876 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1877 if test "$pkg_check_gtk" = "no" && test "$USE_X_TOOLKIT" != "maybe"; then
1878 AC_MSG_ERROR($GTK_PKG_ERRORS)
1880 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
1881 GTK_OBJ=emacsgtkfixed.o
1884 if test "$pkg_check_gtk" != "yes"; then
1886 if test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
1889 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1891 dnl Checks for libraries.
1892 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1893 if test "$pkg_check_gtk" = "no" && test "$USE_X_TOOLKIT" != "maybe"; then
1894 AC_MSG_ERROR($GTK_PKG_ERRORS)
1899 if test x"$pkg_check_gtk" = xyes; then
1901 AC_SUBST(GTK_CFLAGS)
1903 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
1904 CFLAGS="$CFLAGS $GTK_CFLAGS"
1905 LIBS="$GTK_LIBS $LIBS"
1906 dnl Try to compile a simple GTK program.
1908 AC_CHECK_FUNCS(gtk_main, GTK_COMPILES=yes)
1909 if test "${GTK_COMPILES}" != "yes"; then
1910 if test "$USE_X_TOOLKIT" != "maybe"; then
1911 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
1915 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
1916 GTK_OBJ="gtkutil.o $GTK_OBJ"
1918 if $PKG_CONFIG --atleast-version=2.10 gtk+-2.0; then
1921 AC_MSG_WARN([[Your version of Gtk+ will have problems with
1922 closing open displays. This is no problem if you just use
1923 one display, but if you use more than one and close one of them
1933 if test "${HAVE_GTK}" = "yes"; then
1935 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
1936 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
1937 if test "$with_toolkit_scroll_bars" != no; then
1938 with_toolkit_scroll_bars=yes
1941 dnl Check if we have the old file selection dialog declared and
1942 dnl in the link library. In 2.x it may be in the library,
1943 dnl but not declared if deprecated featured has been selected out.
1944 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
1945 HAVE_GTK_FILE_SELECTION=no
1946 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
1947 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
1948 #include <gtk/gtk.h>])
1949 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
1950 AC_CHECK_FUNCS(gtk_file_selection_new)
1954 dnl Check for functions introduced in 2.14 and later.
1955 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
1956 gtk_dialog_get_action_area gtk_widget_get_sensitive \
1957 gtk_widget_get_mapped gtk_adjustment_get_page_size \
1958 gtk_orientable_set_orientation \
1959 gtk_window_set_has_resize_grip)
1962 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
1963 dnl other platforms.
1966 if test "${with_dbus}" = "yes"; then
1967 PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
1968 if test "$HAVE_DBUS" = yes; then
1969 LIBS="$LIBS $DBUS_LIBS"
1970 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
1971 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
1972 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
1974 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
1975 dbus_type_is_valid \
1976 dbus_validate_bus_name \
1977 dbus_validate_path \
1978 dbus_validate_interface \
1979 dbus_validate_member)
1985 dnl GSettings has been tested under GNU/Linux only.
1987 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
1988 PKG_CHECK_MODULES(GSETTINGS, gio-2.0 >= 2.26, HAVE_GSETTINGS=yes, HAVE_GSETTINGS=no)
1989 if test "$HAVE_GSETTINGS" = "yes"; then
1990 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
1991 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
1992 SETTINGS_LIBS="$GSETTINGS_LIBS"
1996 dnl GConf has been tested under GNU/Linux only.
1997 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
1999 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2000 PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
2001 if test "$HAVE_GCONF" = yes; then
2002 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2003 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2004 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2005 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2009 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2010 SAVE_CFLAGS="$CFLAGS"
2012 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2013 LIBS="$SETTINGS_LIBS $LIBS"
2014 AC_CHECK_FUNCS([g_type_init])
2015 CFLAGS="$SAVE_CFLAGS"
2018 AC_SUBST(SETTINGS_CFLAGS)
2019 AC_SUBST(SETTINGS_LIBS)
2022 dnl SELinux is available for GNU/Linux only.
2025 if test "${with_selinux}" = "yes"; then
2026 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2027 if test "$HAVE_LIBSELINUX" = yes; then
2028 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2029 LIBSELINUX_LIBS=-lselinux
2032 AC_SUBST(LIBSELINUX_LIBS)
2035 HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=no
2036 if test "${with_gnutls}" = "yes" ; then
2037 PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6], HAVE_GNUTLS=yes, HAVE_GNUTLS=no)
2038 if test "${HAVE_GNUTLS}" = "yes"; then
2039 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2042 CFLAGS="$CFLAGS $LIBGNUTLS_CFLAGS"
2043 LIBS="$LIBGNUTLS_LIBS $LIBS"
2044 AC_CHECK_FUNCS(gnutls_certificate_set_verify_function, HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=yes)
2046 if test "${HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY}" = "yes"; then
2047 AC_DEFINE(HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY, 1, [Define if using GnuTLS certificate verification callbacks.])
2051 AC_SUBST(LIBGNUTLS_LIBS)
2052 AC_SUBST(LIBGNUTLS_CFLAGS)
2054 dnl Do not put whitespace before the #include statements below.
2055 dnl Older compilers (eg sunos4 cc) choke on it.
2058 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2059 if test "$with_xaw3d" != no; then
2060 AC_MSG_CHECKING(for xaw3d)
2061 AC_CACHE_VAL(emacs_cv_xaw3d,
2062 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2063 #include <X11/Intrinsic.h>
2064 #include <X11/Xaw3d/Simple.h>]],
2066 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2067 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2068 emacs_cv_xaw3d=no)])
2072 if test $emacs_cv_xaw3d = yes; then
2073 AC_MSG_RESULT([yes; using Lucid toolkit])
2077 AC_DEFINE(HAVE_XAW3D, 1,
2078 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2081 AC_MSG_CHECKING(for libXaw)
2082 AC_CACHE_VAL(emacs_cv_xaw,
2083 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2084 #include <X11/Intrinsic.h>
2085 #include <X11/Xaw/Simple.h>]],
2089 if test $emacs_cv_xaw = yes; then
2090 AC_MSG_RESULT([yes; using Lucid toolkit])
2093 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2094 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2096 AC_MSG_ERROR([No X toolkit could be found.
2097 If you are sure you want Emacs compiled without an X toolkit, pass
2099 to configure. Otherwise, install the development libraries for the toolkit
2100 that you want to use (e.g. Gtk+) and re-run configure.])
2105 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2108 if test "${USE_X_TOOLKIT}" != "none"; then
2109 AC_MSG_CHECKING(X11 toolkit version)
2110 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2111 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2112 [[#if XtSpecificationRelease < 6
2115 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2116 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2117 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2118 AC_MSG_RESULT(6 or newer)
2119 AC_DEFINE(HAVE_X11XTR6, 1,
2120 [Define to 1 if you have the X11R6 or newer version of Xt.])
2121 LIBXTR6="-lSM -lICE"
2123 ## Use libw.a along with X11R6 Xt.
2124 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2127 AC_MSG_RESULT(before 6)
2130 dnl If using toolkit, check whether libXmu.a exists.
2131 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2133 if test x$HAVE_X11XTR6 = xyes; then
2134 LIBS="-lXt -lSM -lICE $LIBS"
2138 AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
2139 test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
2143 dnl FIXME the logic here seems weird, but this is what cpp was doing.
2144 dnl Why not just test for libxmu in the normal way?
2147 ## These systems don't supply Xmu.
2149 test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
2154 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
2155 if test "${HAVE_X11}" = "yes"; then
2156 if test "${USE_X_TOOLKIT}" != "none"; then
2157 AC_CHECK_LIB(Xext, XShapeQueryExtension)
2162 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2163 AC_CACHE_CHECK(for Motif version 2.1, emacs_cv_motif_version_2_1,
2164 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2165 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2168 Motif version prior to 2.1.
2170 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2171 if test $emacs_cv_motif_version_2_1 = yes; then
2172 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2174 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2175 # We put this in CFLAGS temporarily to precede other -I options
2176 # that might be in CFLAGS temporarily.
2177 # We put this in CPPFLAGS where it precedes the other -I options.
2178 OLD_CPPFLAGS=$CPPFLAGS
2180 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2181 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2182 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2184 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2185 if test $emacs_cv_lesstif = yes; then
2186 # Make sure this -I option remains in CPPFLAGS after it is set
2187 # back to REAL_CPPFLAGS.
2188 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2189 # have those other -I options anyway. Ultimately, having this
2190 # directory ultimately in CPPFLAGS will be enough.
2191 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2192 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2195 CPPFLAGS=$OLD_CPPFLAGS
2198 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2199 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2202 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2203 dnl using Motif or Xaw3d is available, and unless
2204 dnl --with-toolkit-scroll-bars=no was specified.
2206 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2207 [Define to 1 if we should use toolkit scroll bars.])dnl
2208 USE_TOOLKIT_SCROLL_BARS=no
2209 if test "${with_toolkit_scroll_bars}" != "no"; then
2210 if test "${USE_X_TOOLKIT}" != "none"; then
2211 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2212 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2214 USE_TOOLKIT_SCROLL_BARS=yes
2215 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2216 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2217 USE_TOOLKIT_SCROLL_BARS=yes
2219 elif test "${HAVE_GTK}" = "yes"; then
2220 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2221 USE_TOOLKIT_SCROLL_BARS=yes
2222 elif test "${HAVE_NS}" = "yes"; then
2223 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2224 USE_TOOLKIT_SCROLL_BARS=yes
2228 dnl See if XIM is available.
2229 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2230 #include <X11/Xlib.h>
2231 #include <X11/Xresource.h>]],
2232 [[XIMProc callback;]])],
2234 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2237 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2239 if test "${with_xim}" != "no"; then
2240 AC_DEFINE(USE_XIM, 1,
2241 [Define to 1 if we should use XIM, if it is available.])
2245 if test "${HAVE_XIM}" != "no"; then
2247 if test "$GCC" = yes; then
2248 CFLAGS="$CFLAGS --pedantic-errors"
2250 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2251 #include <X11/Xlib.h>
2252 #include <X11/Xresource.h>]],
2258 XPointer *client_data;
2260 /* If we're not using GCC, it's probably not XFree86, and this is
2261 probably right, but we can't use something like --pedantic-errors. */
2262 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2263 char*, XIMProc, XPointer*);
2265 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2267 [emacs_cv_arg6_star=yes])
2268 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2269 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2270 either XPointer or XPointer*.])dnl
2271 if test "$emacs_cv_arg6_star" = yes; then
2272 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2274 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2279 ### Start of font-backend (under any platform) section.
2280 # (nothing here yet -- this is a placeholder)
2281 ### End of font-backend (under any platform) section.
2283 ### Start of font-backend (under X11) section.
2284 if test "${HAVE_X11}" = "yes"; then
2285 PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
2287 ## Use -lXft if available, unless `--with-xft=no'.
2289 if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2292 if test "x${with_xft}" != "xno"; then
2294 PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
2295 ## Because xftfont.c uses XRenderQueryExtension, we also
2296 ## need to link to -lXrender.
2298 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2299 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2300 OLD_CPPFLAGS="$CPPFLAGS"
2301 OLD_CFLAGS="$CFLAGS"
2303 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2304 CFLAGS="$CFLAGS $XFT_CFLAGS"
2305 XFT_LIBS="-lXrender $XFT_LIBS"
2306 LIBS="$XFT_LIBS $LIBS"
2307 AC_CHECK_HEADER(X11/Xft/Xft.h,
2308 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS))
2310 if test "${HAVE_XFT}" = "yes"; then
2311 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2313 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2315 CPPFLAGS="$OLD_CPPFLAGS"
2316 CFLAGS="$OLD_CFLAGS"
2318 fi # "${HAVE_XFT}" = "yes"
2319 fi # "$HAVE_XFT" != no
2320 fi # "x${with_xft}" != "xno"
2322 ## We used to allow building with FreeType and without Xft.
2323 ## However, the ftx font backend driver is not in good shape.
2324 if test "$HAVE_XFT" != "yes"; then
2325 dnl For the "Does Emacs use" message at the end.
2329 dnl Strict linkers fail with
2330 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2331 dnl if -lfreetype is not specified.
2332 dnl The following is needed to set FREETYPE_LIBS.
2333 PKG_CHECK_MODULES(FREETYPE, freetype2, HAVE_FREETYPE=yes,
2336 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2340 if test "${HAVE_FREETYPE}" = "yes"; then
2341 AC_DEFINE(HAVE_FREETYPE, 1,
2342 [Define to 1 if using the freetype and fontconfig libraries.])
2343 if test "${with_libotf}" != "no"; then
2344 PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
2346 if test "$HAVE_LIBOTF" = "yes"; then
2347 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2348 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2349 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2350 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2351 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2352 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2353 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2357 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2358 dnl Does the new font backend require it, or can it work without it?
2362 if test "${HAVE_LIBOTF}" = yes; then
2363 if test "${with_m17n_flt}" != "no"; then
2364 PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
2365 if test "$HAVE_M17N_FLT" = "yes"; then
2366 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2377 ### End of font-backend (under X11) section.
2379 AC_SUBST(FREETYPE_CFLAGS)
2380 AC_SUBST(FREETYPE_LIBS)
2381 AC_SUBST(FONTCONFIG_CFLAGS)
2382 AC_SUBST(FONTCONFIG_LIBS)
2383 AC_SUBST(LIBOTF_CFLAGS)
2384 AC_SUBST(LIBOTF_LIBS)
2385 AC_SUBST(M17N_FLT_CFLAGS)
2386 AC_SUBST(M17N_FLT_LIBS)
2388 ### Use -lXpm if available, unless `--with-xpm=no'.
2391 if test "${HAVE_X11}" = "yes"; then
2392 if test "${with_xpm}" != "no"; then
2393 AC_CHECK_HEADER(X11/xpm.h,
2394 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2395 if test "${HAVE_XPM}" = "yes"; then
2396 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2397 AC_EGREP_CPP(no_return_alloc_pixels,
2398 [#include "X11/xpm.h"
2399 #ifndef XpmReturnAllocPixels
2400 no_return_alloc_pixels
2402 ], HAVE_XPM=no, HAVE_XPM=yes)
2404 if test "${HAVE_XPM}" = "yes"; then
2412 if test "${HAVE_XPM}" = "yes"; then
2413 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2419 ### Use -ljpeg if available, unless `--with-jpeg=no'.
2422 if test "${HAVE_X11}" = "yes"; then
2423 if test "${with_jpeg}" != "no"; then
2424 dnl Checking for jpeglib.h can lose because of a redefinition of
2426 AC_CHECK_HEADER(jerror.h,
2427 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
2430 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2431 if test "${HAVE_JPEG}" = "yes"; then
2432 AC_DEFINE(HAVE_JPEG)
2433 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2434 [#include <jpeglib.h>
2435 version=JPEG_LIB_VERSION
2437 [AC_DEFINE(HAVE_JPEG)],
2438 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2441 if test "${HAVE_JPEG}" = "yes"; then
2447 ### Use -lpng if available, unless `--with-png=no'.
2450 if test "${HAVE_X11}" = "yes"; then
2451 if test "${with_png}" != "no"; then
2452 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
2453 # in /usr/include/libpng.
2454 AC_CHECK_HEADERS(png.h libpng/png.h, break)
2455 if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
2456 AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
2460 if test "${HAVE_PNG}" = "yes"; then
2461 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2462 LIBPNG="-lpng -lz -lm"
2464 AC_CHECK_DECL(png_longjmp,
2466 [AC_DEFINE(PNG_DEPSTRUCT, [],
2467 [Define to empty to suppress deprecation warnings when building
2468 with --enable-gcc-warnings and with libpng versions before 1.5,
2469 which lack png_longjmp.])],
2470 [[#ifdef HAVE_LIBPNG_PNG_H
2471 # include <libpng/png.h>
2480 ### Use -ltiff if available, unless `--with-tiff=no'.
2483 if test "${HAVE_X11}" = "yes"; then
2484 if test "${with_tiff}" != "no"; then
2485 AC_CHECK_HEADER(tiffio.h,
2487 # At least one tiff package requires the jpeg library.
2488 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
2489 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
2492 if test "${HAVE_TIFF}" = "yes"; then
2493 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
2494 dnl FIXME -lz -lm, as per libpng?
2500 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
2503 if test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no"; then
2504 AC_CHECK_HEADER(gif_lib.h,
2505 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
2506 # Earlier versions can crash Emacs.
2507 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])
2509 if test "$HAVE_GIF" = yes; then
2511 elif test "$HAVE_GIF" = maybe; then
2512 # If gif_lib.h but no libgif, try libungif.
2513 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
2514 test "$HAVE_GIF" = yes && LIBGIF=-lungif
2517 if test "${HAVE_GIF}" = "yes"; then
2518 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
2523 dnl Check for required libraries.
2524 if test "${HAVE_X11}" = "yes"; then
2527 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
2528 MISSING="libXpm" && WITH_NO="--with-xpm=no"
2529 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
2530 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
2531 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
2532 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
2533 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
2534 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
2535 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
2536 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
2538 if test "X${MISSING}" != X; then
2539 AC_MSG_ERROR([The following required libraries were not found:
2541 Maybe some development libraries/packages are missing?
2542 If you don't want to link with them give
2544 as options to configure])
2548 ### Use -lgpm if available, unless `--with-gpm=no'.
2551 if test "${with_gpm}" != "no"; then
2552 AC_CHECK_HEADER(gpm.h,
2553 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
2555 if test "${HAVE_GPM}" = "yes"; then
2556 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
2562 dnl Check for malloc/malloc.h on darwin
2563 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
2566 ### Use NeXTstep API to implement GUI.
2567 if test "${HAVE_NS}" = "yes"; then
2568 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
2569 if test "${NS_IMPL_COCOA}" = "yes"; then
2570 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
2572 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
2573 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
2574 # See also .m.o rule in Makefile.in */
2575 # FIXME: are all these flags really needed? Document here why. */
2576 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
2577 ## Extra CFLAGS applied to src/*.m files.
2578 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"
2580 # We also have mouse menus.
2586 ### Use session management (-lSM -lICE) if available
2589 if test "${HAVE_X11}" = "yes"; then
2590 AC_CHECK_HEADER(X11/SM/SMlib.h,
2591 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
2593 if test "${HAVE_X_SM}" = "yes"; then
2594 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
2598 *) LIBS="$LIBXSM $LIBS" ;;
2604 ### Use libxml (-lxml2) if available
2606 if test "${with_xml2}" != "no"; then
2607 ### I'm not sure what the version number should be, so I just guessed.
2608 PKG_CHECK_MODULES(LIBXML2, libxml-2.0 > 2.6.17, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2609 if test "${HAVE_LIBXML2}" = "yes"; then
2610 LIBS="$LIBXML2_LIBS $LIBS"
2611 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2612 if test "${HAVE_LIBXML2}" = "yes"; then
2613 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
2620 AC_SUBST(LIBXML2_LIBS)
2621 AC_SUBST(LIBXML2_CFLAGS)
2623 # If netdb.h doesn't declare h_errno, we must declare it by hand.
2624 AC_CACHE_CHECK(whether netdb declares h_errno,
2625 emacs_cv_netdb_declares_h_errno,
2626 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
2627 [[return h_errno;]])],
2628 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
2629 if test $emacs_cv_netdb_declares_h_errno = yes; then
2630 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
2633 # fmod, logb, and frexp are found in -lm on most systems.
2634 # On HPUX 9.01, -lm does not contain logb, so check for sqrt.
2635 AC_CHECK_LIB(m, sqrt)
2637 # Check for mail-locking functions in a "mail" library. Probably this should
2638 # have the same check as for liblockfile below.
2639 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
2640 if test $have_mail = yes; then
2642 LIBS="$LIBS_MAIL $LIBS"
2643 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
2647 dnl Debian, at least:
2648 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
2649 if test $have_lockfile = yes; then
2650 LIBS_MAIL=-llockfile
2651 LIBS="$LIBS_MAIL $LIBS"
2652 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
2654 # If we have the shared liblockfile, assume we must use it for mail
2655 # locking (e.g. Debian). If we couldn't link against liblockfile
2656 # (no liblockfile.a installed), ensure that we don't need to.
2657 dnl This works for files generally, not just executables.
2658 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
2659 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
2660 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
2661 if test $ac_cv_prog_liblockfile = yes; then
2662 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
2663 This probably means that movemail could lose mail.
2664 There may be a `development' package to install containing liblockfile.])
2667 AC_CHECK_HEADERS_ONCE(maillock.h)
2670 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
2671 ## interlock access to the mail spool. The alternative is a lock file named
2672 ## /usr/spool/mail/$USER.lock.
2675 aix4-2) mail_lock="lockf" ;;
2677 gnu|freebsd|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
2679 ## On GNU/Linux systems, both methods are used by various mail programs.
2680 ## I assume most people are using newer mailers that have heard of flock.
2681 ## Change this if you need to.
2682 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
2683 ## configure gets the right answers, and that means *NOT* using flock.
2684 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
2685 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
2686 ## Debian maintainer hasn't provided a clean fix for Emacs.
2687 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
2688 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
2689 ## correct logic. -- fx
2690 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
2691 ## liblockfile is a Free Software replacement for libmail, used on
2692 ## Debian systems and elsewhere. -rfr.
2695 if test $have_mail = yes || test $have_lockfile = yes; then
2696 test $ac_cv_header_maillock_h = yes && mail_lock=no
2702 case "$mail_lock" in
2703 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
2705 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
2707 *) BLESSMAIL_TARGET="need-blessmail" ;;
2709 AC_SUBST(BLESSMAIL_TARGET)
2712 AC_CHECK_FUNCS(gethostname \
2713 closedir getrusage get_current_dir_name \
2714 lrand48 logb frexp fmod cbrt setsid \
2715 fpathconf select euidaccess getpagesize setlocale \
2716 utimes getrlimit setrlimit setpgid getcwd shutdown getaddrinfo \
2717 __fpending strsignal setitimer \
2718 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
2719 gai_strerror mkstemp getline getdelim fsync sync \
2720 difftime posix_memalign \
2721 getpwent endpwent getgrent endgrent \
2723 cfmakeraw cfsetspeed copysign __executable_start)
2725 dnl FIXME Fragile: something else may test for getwd as a dependency.
2726 dnl Change to defining BROKEN_xxx ?
2727 dnl getwd appears to be buggy on SVR4.2, so we don't use it.
2728 if test $opsys != unixware; then
2729 AC_CHECK_FUNCS(getwd)
2732 dnl FIXME Fragile: see above.
2733 ## Eric Backus <ericb@lsid.hp.com> says, HP-UX 9.x on HP 700 machines
2734 ## has a broken `rint' in some library versions including math library
2735 ## version number A.09.05.
2736 ## You can fix the math library by installing patch number PHSS_4630.
2737 ## But we can fix it more reliably for Emacs by just not using rint.
2738 ## We also skip HAVE_RANDOM - see comments in src/s/hpux10-20.h.
2741 *) AC_CHECK_FUNCS(random rint) ;;
2744 dnl Cannot use AC_CHECK_FUNCS
2745 AC_CACHE_CHECK([for __builtin_unwind_init],
2746 emacs_cv_func___builtin_unwind_init,
2747 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
2748 emacs_cv_func___builtin_unwind_init=yes,
2749 emacs_cv_func___builtin_unwind_init=no)])
2750 if test $emacs_cv_func___builtin_unwind_init = yes; then
2751 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
2752 [Define to 1 if you have the `__builtin_unwind_init' function.])
2755 AC_CHECK_HEADERS_ONCE(sys/un.h)
2762 AC_CHECK_FUNCS(grantpt)
2764 # PTY-related GNU extensions.
2765 AC_CHECK_FUNCS(getpt)
2767 # Check this now, so that we will NOT find the above functions in ncurses.
2768 # That is because we have not set up to link ncurses in lib-src.
2769 # It's better to believe a function is not available
2770 # than to expect to find it in ncurses.
2771 # Also we need tputs and friends to be able to build at all.
2772 AC_MSG_CHECKING([for library containing tputs])
2773 # Run a test program that contains a call to tputs, a call that is
2774 # never executed. This tests whether a pre-'main' dynamic linker
2775 # works with the library. It's too much trouble to actually call
2776 # tputs in the test program, due to portability hassles. When
2777 # cross-compiling, assume the test program will run if it links.
2778 AC_DEFUN([tputs_link_source], [
2780 [[extern void tputs (const char *, int, int (*)(int));
2781 int main (int argc, char **argv)
2784 tputs (argv[0], 0, 0);
2788 # Maybe curses should be tried earlier?
2789 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
2790 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
2792 if test -z "$tputs_library"; then
2796 LIBS_TERMCAP=-l$tputs_library
2798 LIBS="$LIBS_TERMCAP $LIBS"
2800 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
2801 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
2803 if test "X$msg" != Xno; then
2807 AC_MSG_RESULT([$msg])
2808 if test "X$msg" = Xno; then
2809 AC_MSG_ERROR([The required function `tputs' was not found in any library.
2810 The following libraries were tried (in order):
2811 libtinfo, libncurses, libterminfo, libtermcap, libcurses
2812 Please try installing whichever of these libraries is most appropriate
2813 for your system, together with its header files.
2814 For example, a libncurses-dev(el) or similar package.])
2817 ## Use termcap instead of terminfo?
2818 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
2820 ## FIXME? In the cases below where we unconditionally set
2821 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
2822 ## if that was found above to have tputs.
2823 ## Should we use the gnu* logic everywhere?
2825 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
2826 ## The ncurses library has been moved out of the System framework in
2827 ## Mac OS X 10.2. So if configure detects it, set the command-line
2828 ## option to use it.
2829 darwin) LIBS_TERMCAP="-lncurses" ;;
2831 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
2834 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
2835 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
2836 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
2837 [[#if __FreeBSD_version < 400000
2840 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
2842 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
2844 if test $emacs_cv_freebsd_terminfo = yes; then
2845 LIBS_TERMCAP="-lncurses"
2848 LIBS_TERMCAP="-ltermcap"
2853 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
2855 LIBS_TERMCAP="-ltermcap"
2859 openbsd) LIBS_TERMCAP="-lncurses" ;;
2861 ## hpux: Make sure we get select from libc rather than from libcurses
2862 ## because libcurses on HPUX 10.10 has a broken version of select.
2863 ## We used to use -lc -lcurses, but this may be cleaner.
2864 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
2865 # set that way, now it uses the default). Isn't this a contradiction?
2866 hpux*) LIBS_TERMCAP="-ltermcap" ;;
2870 TERMCAP_OBJ=tparam.o
2871 if test $TERMINFO = yes; then
2872 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
2873 TERMCAP_OBJ=terminfo.o
2875 AC_SUBST(LIBS_TERMCAP)
2876 AC_SUBST(TERMCAP_OBJ)
2879 # Do we have res_init, for detecting changes in /etc/resolv.conf?
2880 # On Darwin, res_init appears not to be useful: see bug#562 and
2881 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
2884 if test $opsys != darwin; then
2886 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
2887 #include <arpa/nameser.h>
2888 #include <resolv.h>]],
2889 [[return res_init();]])],
2890 have_res_init=yes, have_res_init=no)
2891 if test "$have_res_init" = no; then
2893 LIBS="$LIBS -lresolv"
2894 AC_MSG_CHECKING(for res_init with -lresolv)
2895 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
2896 #include <arpa/nameser.h>
2897 #include <resolv.h>]],
2898 [[return res_init();]])],
2899 have_res_init=yes, have_res_init=no)
2900 AC_MSG_RESULT($have_res_init)
2901 if test "$have_res_init" = yes ; then
2907 if test "$have_res_init" = yes; then
2908 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
2912 # Do we need the Hesiod library to provide the support routines?
2913 dnl FIXME? Should we be skipping this on Darwin too?
2915 if test "$with_hesiod" != no ; then
2916 # Don't set $LIBS here -- see comments above. FIXME which comments?
2917 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
2918 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
2919 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
2920 if test "$resolv" = yes ; then
2925 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
2926 hesiod=yes, :, $RESOLVLIB)])
2928 if test x"$hesiod" = xyes; then
2929 AC_DEFINE(HAVE_LIBHESIOD, 1,
2930 [Define to 1 if you have the hesiod library (-lhesiod).])
2936 # Do we need libresolv (due to res_init or Hesiod)?
2937 if test "$resolv" = yes && test $opsys != darwin; then
2938 AC_DEFINE(HAVE_LIBRESOLV, 1,
2939 [Define to 1 if you have the resolv library (-lresolv).])
2946 # These tell us which Kerberos-related libraries to use.
2953 if test "${with_kerberos}" != no; then
2954 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
2955 if test $have_com_err = yes; then
2956 COM_ERRLIB=-lcom_err
2957 LIBS="$COM_ERRLIB $LIBS"
2958 AC_DEFINE(HAVE_LIBCOM_ERR, 1, [Define to 1 if you have the `com_err' library (-lcom_err).])
2960 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
2961 if test $have_crypto = yes; then
2963 LIBS="$CRYPTOLIB $LIBS"
2964 AC_DEFINE(HAVE_LIBCRYPTO, 1, [Define to 1 if you have the `crypto' library (-lcrypto).])
2966 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
2967 if test $have_k5crypto = yes; then
2968 CRYPTOLIB=-lk5crypto
2969 LIBS="$CRYPTOLIB $LIBS"
2970 AC_DEFINE(HAVE_LIBK5CRYPTO, 1, [Define to 1 if you have the `k5crypto' library (-lk5crypto).])
2972 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
2973 if test $have_krb5=yes; then
2975 LIBS="$KRB5LIB $LIBS"
2976 AC_DEFINE(HAVE_LIBKRB5, 1, [Define to 1 if you have the `krb5' library (-lkrb5).])
2978 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
2979 if test "${with_kerberos5}" = no; then
2980 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
2981 if test $have_des425 = yes; then
2983 LIBS="$DESLIB $LIBS"
2984 AC_DEFINE(HAVE_LIBDES425, 1, [Define to 1 if you have the `des425' library (-ldes425).])
2986 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
2987 if test $have_des = yes; then
2989 LIBS="$DESLIB $LIBS"
2990 AC_DEFINE(HAVE_LIBDES, 1, [Define to 1 if you have the `des' library (-ldes).])
2993 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
2994 if test $have_krb4 = yes; then
2996 LIBS="$KRB4LIB $LIBS"
2997 AC_DEFINE(HAVE_LIBKRB4, 1, [Define to 1 if you have the `krb4' library (-lkrb4).])
2999 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3000 if test $have_krb = yes; then
3002 LIBS="$KRB4LIB $LIBS"
3003 AC_DEFINE(HAVE_LIBKRB, 1, [Define to 1 if you have the `krb' library (-lkrb).])
3008 if test "${with_kerberos5}" != no; then
3009 AC_CHECK_HEADERS(krb5.h,
3010 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3011 [#include <krb5.h>])])
3013 AC_CHECK_HEADERS(des.h,,
3014 [AC_CHECK_HEADERS(kerberosIV/des.h,,
3015 [AC_CHECK_HEADERS(kerberos/des.h)])])
3016 AC_CHECK_HEADERS(krb.h,,
3017 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3018 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3020 AC_CHECK_HEADERS(com_err.h)
3023 AC_SUBST(COM_ERRLIB)
3029 AC_CHECK_FUNCS_ONCE(tzset)
3030 AC_MSG_CHECKING(whether localtime caches TZ)
3031 AC_CACHE_VAL(emacs_cv_localtime_cache,
3032 [if test x$ac_cv_func_tzset = xyes; then
3033 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3034 char TZ_GMT0[] = "TZ=GMT0";
3035 char TZ_PST8[] = "TZ=PST8";
3038 time_t now = time ((time_t *) 0);
3039 int hour_GMT0, hour_unset;
3040 if (putenv (TZ_GMT0) != 0)
3042 hour_GMT0 = localtime (&now)->tm_hour;
3044 hour_unset = localtime (&now)->tm_hour;
3045 if (putenv (TZ_PST8) != 0)
3047 if (localtime (&now)->tm_hour == hour_GMT0)
3050 if (localtime (&now)->tm_hour != hour_unset)
3053 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3054 [# If we have tzset, assume the worst when cross-compiling.
3055 emacs_cv_localtime_cache=yes])
3057 # If we lack tzset, report that localtime does not cache TZ,
3058 # since we can't invalidate the cache if we don't have tzset.
3059 emacs_cv_localtime_cache=no
3061 AC_MSG_RESULT($emacs_cv_localtime_cache)
3062 if test $emacs_cv_localtime_cache = yes; then
3063 AC_DEFINE(LOCALTIME_CACHE, 1,
3064 [Define to 1 if localtime caches TZ.])
3068 AC_CHECK_FUNC(socket, , ok_so_far=no)
3069 if test $ok_so_far = yes; then
3070 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3072 if test $ok_so_far = yes; then
3073 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3075 if test $ok_so_far = yes; then
3076 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3077 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3078 [Define to 1 if you have inet sockets.])
3081 if test -f /usr/lpp/X11/bin/smt.exp; then
3082 AC_DEFINE(HAVE_AIX_SMT_EXP, 1,
3083 [Define to 1 if the file /usr/lpp/X11/bin/smt.exp exists.])
3086 AC_MSG_CHECKING(whether system supports dynamic ptys)
3087 if test -d /dev/pts && ls -d /dev/ptmx > /dev/null 2>&1 ; then
3089 AC_DEFINE(HAVE_DEV_PTMX, 1, [Define to 1 if dynamic ptys are supported.])
3096 AC_CHECK_FUNCS(snprintf)
3098 dnl Adapted from Haible's version.
3099 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3100 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3101 [[char* cs = nl_langinfo(CODESET);]])],
3102 emacs_cv_langinfo_codeset=yes,
3103 emacs_cv_langinfo_codeset=no)
3105 if test $emacs_cv_langinfo_codeset = yes; then
3106 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3107 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3112 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3113 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3114 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3115 if test "$emacs_cv_c_restrict_arr" = yes; then
3116 AC_DEFINE(__restrict_arr, __restrict,
3117 [Define to compiler's equivalent of C99 restrict keyword in array
3118 declarations. Define as empty for no equivalent.])
3121 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3122 dnl how the tty code is related to POSIX and/or other versions of termios.
3123 dnl The following looks like a useful start.
3125 dnl AC_SYS_POSIX_TERMIOS
3126 dnl if test $ac_cv_sys_posix_termios = yes; then
3127 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3128 dnl and macros for terminal control.])
3129 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3132 dnl Every platform that uses configure (ie every non-MS platform)
3133 dnl supports this. There is a create-lockfiles option you can
3134 dnl customize if you do not want the lock files to be written.
3135 dnl So it is not clear that this #define still needs to exist.
3136 AC_DEFINE(CLASH_DETECTION, 1, [Define if you want lock files to be written,
3137 so that Emacs can tell instantly when you try to modify a file that
3138 someone else has modified in his/her Emacs.])
3140 dnl Everybody supports this, except MS.
3141 dnl Seems like the kind of thing we should be testing for, though.
3142 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3143 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3145 dnl Everybody supports this, except MS-DOS.
3146 dnl Seems like the kind of thing we should be testing for, though.
3147 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3148 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3149 4.2-compatible sockets.])
3153 darwin | gnu | hpux* | *bsd )
3154 AC_DEFINE(NO_TERMIO, 1, [Define if termio.h should not be included.])
3160 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
3161 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
3162 hpux* | irix6-5 | openbsd | sol2* | unixware )
3163 AC_DEFINE(BROKEN_SIGIO, 1, [Define if SIGIO should not be used.])
3167 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
3168 AC_DEFINE(BROKEN_FIONREAD, 1, [Define if FIONREAD should not be used.])
3169 dnl As we define BROKEN_FIONREAD, SIGIO will be undefined in systty.h.
3170 dnl But, on AIX, SIGAIO, SIGPTY, and SIGPOLL are defined as SIGIO,
3171 dnl which causes compilation error at init_signals in sysdep.c.
3172 dnl So, we define these macros so that syssignal.h detects them
3173 dnl and undefine SIGAIO, SIGPTY and SIGPOLL.
3174 AC_DEFINE(BROKEN_SIGAIO, 1, [Define if SIGAIO should not be used.])
3175 AC_DEFINE(BROKEN_SIGPOLL,1, [Define if SIGPOLL should not be used.])
3176 AC_DEFINE(BROKEN_SIGPTY, 1, [Define if SIGPTY should not be used.])
3178 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
3179 dnl the way this system works, libc functions that return malloced
3180 dnl memory use the libc malloc implementation. Calling xfree or
3181 dnl xrealloc on the results of such functions results in a crash.
3183 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
3184 dnl but that does not currently work on this system.
3186 dnl It is possible to completely override the malloc implementation on
3187 dnl AIX, but that involves putting the malloc functions in a shared
3188 dnl library and setting the MALLOCTYPE environment variable to point to
3189 dnl that shared library.
3191 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
3192 dnl to avoid a crash just use the Emacs implementation for that function.
3194 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
3195 dnl of this file, so that we do not check for get_current_dir_name
3196 dnl on AIX. But that might be fragile if something else ends
3197 dnl up testing for get_current_dir_name as a dependency.
3198 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
3199 get_current_dir_name should not be used.])
3203 dnl Circumvent a bug in FreeBSD. In the following sequence of
3204 dnl writes/reads on a PTY, read(2) returns bogus data:
3206 dnl write(2) 1022 bytes
3207 dnl write(2) 954 bytes, get EAGAIN
3208 dnl read(2) 1024 bytes in process_read_output
3209 dnl read(2) 11 bytes in process_read_output
3211 dnl That is, read(2) returns more bytes than have ever been written
3212 dnl successfully. The 1033 bytes read are the 1022 bytes written
3213 dnl successfully after processing (for example with CRs added if the
3214 dnl terminal is set up that way which it is here). The same bytes will
3215 dnl be seen again in a later read(2), without the CRs.
3216 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
3217 work around an issue when reading from a PTY.])
3220 dnl Define the following so emacs symbols will not conflict with those
3221 dnl in the System framework. Otherwise -prebind will not work.
3223 AC_DEFINE(NO_ABORT, 1, [Do not define abort in emacs.c.])
3229 dnl FIXME Can't we test if this exists (eg /proc/$$)?
3230 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
3235 darwin | freebsd | netbsd | openbsd )
3236 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
3237 close a pty to make it a controlling terminal (it is already a
3238 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
3242 dnl FIXME Surely we can test for this rather than hard-code it.
3244 netbsd | openbsd) sound_device="/dev/audio" ;;
3245 *) sound_device="/dev/dsp" ;;
3249 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
3250 [Name of the default sound device.])
3253 dnl Emacs can read input using SIGIO and buffering characters itself,
3254 dnl or using CBREAK mode and making C-g cause SIGINT.
3255 dnl The choice is controlled by the variable interrupt_input.
3257 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
3259 dnl Emacs uses the presence or absence of the SIGIO and BROKEN_SIGIO macros
3260 dnl to indicate whether or not signal-driven I/O is possible. It uses
3261 dnl INTERRUPT_INPUT to decide whether to use it by default.
3263 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
3264 dnl CBREAK mode has two disadvantages
3265 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
3266 dnl I hear that in system V this problem does not exist.
3267 dnl 2) Control-G causes output to be discarded.
3268 dnl I do not know whether this can be fixed in system V.
3270 dnl Another method of doing input is planned but not implemented.
3271 dnl It would have Emacs fork off a separate process
3272 dnl to read the input and send it to the true Emacs process
3275 darwin | gnu-linux | gnu-kfreebsd )
3276 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
3281 dnl If the system's imake configuration file defines `NeedWidePrototypes'
3282 dnl as `NO', we must define NARROWPROTO manually. Such a define is
3283 dnl generated in the Makefile generated by `xmkmf'. If we don't define
3284 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
3285 dnl taking float or double parameters.
3287 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
3288 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
3289 file defines `NeedWidePrototypes' as `NO'.])
3294 dnl Used in process.c, this must be a loop, even if it only runs once.
3295 dnl (Except on SGI; see below. Take that, clarity and consistency!)
3296 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
3297 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
3298 dnl trying suffixes 0-16.
3299 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
3300 first PTY, if PTYs are supported.])
3301 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
3302 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
3303 end of a PTY, if non-standard.])
3304 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
3305 end of a PTY, if non-standard.])
3309 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)] )
3310 dnl You allocate a pty by opening /dev/ptc to get the master side.
3311 dnl To get the name of the slave side, you just ttyname() the master side.
3312 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");] )
3313 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));] )
3317 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)] )
3318 dnl multi-line AC_DEFINEs are hard. :(
3319 AC_DEFINE(PTY_OPEN, [ do { int dummy; SIGMASKTYPE mask; mask = sigblock (sigmask (SIGCHLD)); if (-1 == openpty (&fd, &dummy, pty_name, 0, 0)) fd = -1; sigsetmask (mask); if (fd >= 0) emacs_close (dummy); } while (0)] )
3320 AC_DEFINE(PTY_NAME_SPRINTF, [] )
3321 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [] )
3325 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)] )
3326 dnl Not used, because PTY_ITERATION is defined.
3327 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3328 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
3329 dnl But we don't have to block SIGCHLD because it is blocked in the
3330 dnl implementation of grantpt.
3331 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (0)] )
3332 AC_DEFINE(PTY_NAME_SPRINTF, [] )
3333 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [] )
3336 gnu | freebsd | netbsd | openbsd )
3337 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3340 gnu-linux | gnu-kfreebsd )
3342 if test "x$ac_cv_func_grantpt" = xyes; then
3343 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)] )
3344 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
3345 dnl to prevent sigchld_handler from intercepting the child's death.
3346 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptyname; sigblock (sigmask (SIGCHLD)); if (grantpt (fd) == -1 || unlockpt (fd) == -1 || !(ptyname = ptsname(fd))) { sigunblock (sigmask (SIGCHLD)); close (fd); return -1; } snprintf (pty_name, sizeof pty_name, "%s", ptyname); sigunblock (sigmask (SIGCHLD)); }] )
3348 if test "x$ac_cv_func_getpt" = xyes; then
3349 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
3350 AC_DEFINE(PTY_NAME_SPRINTF, [] )
3352 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");] )
3355 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3360 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3361 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);] )
3362 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);] )
3366 dnl It looks like this cannot be right, because it is not a loop.
3367 dnl However, process.c actually does this:
3373 dnl which presumably makes it OK, since irix == sgi (?).
3374 dnl FIXME it seems like this special treatment is unnecessary?
3375 dnl Why can't irix use a single-trip loop like eg cygwin?
3376 AC_DEFINE(PTY_ITERATION, [])
3377 dnl Not used, because PTY_ITERATION is defined.
3378 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
3379 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); }] )
3380 dnl No need to get the pty name at all.
3381 AC_DEFINE(PTY_NAME_SPRINTF, [] )
3382 dnl No need to use sprintf to get the tty name--we get that from _getpty.
3383 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [] )
3387 dnl This change means that we don't loop through allocate_pty too
3388 dnl many times in the (rare) event of a failure.
3389 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
3390 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");] )
3391 dnl Uses sigblock/sigunblock rather than sighold/sigrelse,
3392 dnl which appear to be BSD4.1 specific. It may also be appropriate
3393 dnl for SVR4.x (x<2) but I'm not sure. fnf@cygnus.com
3394 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
3395 dnl from intercepting that death. If any child but grantpt's should die
3396 dnl within, it should be caught after sigrelse(2).
3397 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptsname (int), *ptyname; sigblock (sigmask (SIGCLD)); if (grantpt (fd) == -1) { emacs_close (fd); return -1; } sigunblock (sigmask (SIGCLD)); if (unlockpt (fd) == -1) { emacs_close (fd); return -1; } if (!(ptyname = ptsname (fd))) { emacs_close (fd); return -1; } snprintf (pty_name, sizeof pty_name, "%s", ptyname); }] )
3400 dnl Comments are as per sol2*.
3402 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
3403 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");] )
3404 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptsname (int), *ptyname; sigblock(sigmask(SIGCLD)); if (grantpt(fd) == -1) fatal("could not grant slave pty"); sigunblock(sigmask(SIGCLD)); if (unlockpt(fd) == -1) fatal("could not unlock slave pty"); if (!(ptyname = ptsname(fd))) fatal ("could not enable slave pty"); snprintf (pty_name, sizeof pty_name, "%s", ptyname); }] )
3409 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
3410 "typing" a signal character on the pty.])
3413 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
3414 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
3415 aix4-2 | cygwin | gnu | irix6-5 | freebsd | netbsd | openbsd )
3416 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3419 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
3420 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
3421 gnu-linux | gnu-kfreebsd )
3423 AC_MSG_CHECKING([for signals via characters])
3424 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3425 #include <linux/version.h>
3426 #if LINUX_VERSION_CODE < 0x20400
3427 # error "Linux version too old"
3429 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
3431 AC_MSG_RESULT([$emacs_signals_via_chars])
3432 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3437 dnl Used in dispnew.c
3438 AH_TEMPLATE(PENDING_OUTPUT_COUNT, [Number of chars of output in the
3439 buffer of a stdio stream.])
3441 dnl FIXME just PENDING_OUTPUT_COUNT should suffice.
3442 AH_TEMPLATE(GNU_LIBRARY_PENDING_OUTPUT_COUNT, [Value of
3443 PENDING_OUTPUT_COUNT if using the GNU C library.])
3446 cygwin | darwin | freebsd | netbsd | openbsd )
3447 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->_p - (FILE)->_bf._base)])
3451 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->__ptr - (FILE)->__base)])
3454 gnu | gnu-linux | gnu-kfreebsd )
3455 AC_MSG_CHECKING([for style of pending output formalism])
3456 dnl In autoconf 2.67 (?) and later, we could use a single test
3457 dnl since the preprocessed output is accessible in "conftest.i".
3458 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3460 #if !defined (_IO_STDIO_H) && !defined (_STDIO_USES_IOSTREAM)
3461 # error "stdio definitions not found"
3463 ]], [[]])], emacs_pending_output=new, emacs_pending_output=unknown)
3465 if test $emacs_pending_output = unknown; then
3467 gnu-linux | gnu-kfreebsd)
3468 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3471 # error "not using uclibc"
3473 ]], [[]])], emacs_pending_output=uclibc, emacs_pending_output=old)
3478 AC_MSG_RESULT([$emacs_pending_output])
3480 case $emacs_pending_output in
3482 dnl New C libio names.
3483 AC_DEFINE(GNU_LIBRARY_PENDING_OUTPUT_COUNT(FILE),
3484 [((FILE)->_IO_write_ptr - (FILE)->_IO_write_base)])
3487 dnl Using the uClibc library.
3488 AC_DEFINE(GNU_LIBRARY_PENDING_OUTPUT_COUNT(FILE),
3489 [((FILE)->__bufpos - (FILE)->__bufstart)])
3492 dnl Old C++ iostream names.
3493 AC_DEFINE(GNU_LIBRARY_PENDING_OUTPUT_COUNT(FILE),
3494 [((FILE)->_pptr - (FILE)->_pbase)])
3501 dnl Used in vm-limit.c
3502 AH_TEMPLATE(DATA_START, [Address of the start of the data segment.])
3503 dnl Used in lisp.h, emacs.c, mem-limits.h
3504 dnl NEWS.18 describes this as "a number which contains
3505 dnl the high bits to be inclusive or'ed with pointers that are unpacked."
3506 AH_TEMPLATE(DATA_SEG_BITS, [Extra bits to be or'd in with any pointers
3507 stored in a Lisp_Object.])
3508 dnl if Emacs uses fewer than 32 bits for the value field of a LISP_OBJECT.
3512 dnl libc defines data_start.
3513 AC_DEFINE(DATA_START, [({ extern int data_start; (char *) &data_start; })])
3517 dnl The data segment on this machine always starts at address 0x40000000.
3518 AC_DEFINE(DATA_START, [0x40000000])
3519 AC_DEFINE(DATA_SEG_BITS, [0x40000000])
3522 AC_DEFINE(DATA_START, [0x10000000])
3523 AC_DEFINE(DATA_SEG_BITS, [0x10000000])
3528 AH_TEMPLATE(TAB3, [Undocumented.])
3531 darwin) AC_DEFINE(TAB3, OXTABS) ;;
3533 gnu | freebsd | netbsd | openbsd )
3534 AC_DEFINE(TABDLY, OXTABS, [Undocumented.] )
3535 AC_DEFINE(TAB3, OXTABS)
3539 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
3540 run_time_remap; for HPUX.])
3545 dnl Used in xfaces.c.
3548 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
3549 some systems, where it requires time.h.])
3555 dnl Emacs supplies its own malloc, but glib (part of Gtk+) calls
3556 dnl memalign and on Cygwin, that becomes the Cygwin-supplied memalign.
3557 dnl As malloc is not the Cygwin malloc, the Cygwin memalign always
3558 dnl returns ENOSYS. A workaround is to set G_SLICE=always-malloc. */
3560 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
3561 G_SLICE environment variable to "always-malloc" at startup, if
3565 gnu) opsysfile="s/bsd-common.h" ;;
3567 gnu-kfreebsd) opsysfile="s/gnu-linux.h" ;;
3570 dnl See comments in sysdep.c:sys_signal.
3571 dnl SA_RESTART resets the timeout of `select' on hpux11.
3572 dnl Defining BROKEN_SA_RESTART is not the same as undef'ing SA_RESTART.
3573 AC_DEFINE(BROKEN_SA_RESTART, 1, [Define if SA_RESTART should only
3574 be used in batch mode.])
3575 dnl It works to open the pty's tty in the parent (Emacs), then
3576 dnl close and reopen it in the child.
3577 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
3578 works to open a pty's tty in the parent process, then close and
3579 reopen it in the child.])
3581 opsysfile="s/hpux10-20.h"
3585 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
3586 use VSUSP instead of VSWTCH.])
3587 AC_DEFINE(SETPGRP_RELEASES_CTTY, 1, [Define if process.c:child_setup
3588 should not call setpgrp.])
3591 openbsd) opsysfile="s/netbsd.h" ;;
3594 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
3596 opsysfile="s/sol2-6.h"
3600 # Set up the CFLAGS for real compilation, so we can substitute it.
3601 CFLAGS="$REAL_CFLAGS"
3602 CPPFLAGS="$REAL_CPPFLAGS"
3604 ## Hack to detect a buggy GCC version.
3605 if test "x$GCC" = xyes \
3606 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
3607 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
3608 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
3609 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
3612 version=$PACKAGE_VERSION
3614 ### Specify what sort of things we'll be editing into Makefile and config.h.
3615 ### Use configuration here uncanonicalized to avoid exceeding size limits.
3617 AC_SUBST(configuration)
3622 AC_SUBST(exec_prefix)
3625 AC_SUBST(sharedstatedir)
3626 AC_SUBST(libexecdir)
3631 AC_SUBST(standardlisppath)
3632 AC_SUBST(locallisppath)
3634 AC_SUBST(x_default_search_path)
3636 AC_SUBST(archlibdir)
3641 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
3642 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
3643 ## end of LIBX_BASE, but nothing ever set it.
3644 AC_SUBST(LD_SWITCH_X_SITE)
3645 AC_SUBST(C_SWITCH_X_SITE)
3646 AC_SUBST(GNUSTEP_CFLAGS)
3648 ## Used in lwlib/Makefile.in.
3649 AC_SUBST(X_TOOLKIT_TYPE)
3650 if test -n "${opsysfile}"; then
3651 S_FILE="\$(srcdir)/${opsysfile}"
3657 AC_SUBST(ns_appbindir)
3658 AC_SUBST(ns_appresdir)
3660 AC_SUBST(GNU_OBJC_CFLAGS)
3661 AC_SUBST(OTHER_FILES)
3663 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
3664 [Define to the canonical Emacs configuration name.])
3665 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${ac_configure_args}",
3666 [Define to the options passed to configure.])
3667 if test -n "$opsysfile"; then
3668 AC_DEFINE_UNQUOTED(config_opsysfile, "${opsysfile}",
3669 [Define to the used os dependent file.])
3675 if test "${HAVE_X_WINDOWS}" = "yes" ; then
3676 AC_DEFINE(HAVE_X_WINDOWS, 1,
3677 [Define to 1 if you want to use the X window system.])
3679 XOBJ="xterm.o xfns.o xselect.o xrdb.o fontset.o xsmfns.o fringe.o image.o xsettings.o xgselect.o"
3681 if test "$HAVE_XFT" = "yes"; then
3682 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
3683 elif test "$HAVE_FREETYPE" = "yes"; then
3684 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
3694 if test "${USE_X_TOOLKIT}" != "none" ; then
3696 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
3697 if test "${USE_X_TOOLKIT}" = "LUCID"; then
3698 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
3699 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
3700 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
3704 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
3705 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
3709 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
3710 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
3711 MOTIF_LIBW="MOTIF_LIBW -lXimp"
3715 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
3716 MOTIF_LIBW="$MOTIF_LIBW -li18n"
3719 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
3722 AC_SUBST(WIDGET_OBJ)
3725 case "$USE_X_TOOLKIT" in
3726 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
3727 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
3728 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
3730 AC_SUBST(TOOLKIT_LIBW)
3732 if test "$USE_X_TOOLKIT" = "none"; then
3733 LIBXT_OTHER="\$(LIBXSM)"
3734 OLDXMENU_TARGET="really-oldXMenu"
3736 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
3737 OLDXMENU_TARGET="really-lwlib"
3739 AC_SUBST(LIBXT_OTHER)
3741 ## The X Menu stuff is present in the X10 distribution, but missing
3742 ## from X11. If we have X10, just use the installed library;
3743 ## otherwise, use our own copy.
3744 if test "${HAVE_X11}" = "yes" ; then
3745 AC_DEFINE(HAVE_X11, 1,
3746 [Define to 1 if you want to use version 11 of X windows.
3747 Otherwise, Emacs expects to use version 10.])
3749 if test "$USE_X_TOOLKIT" = "none"; then
3750 OLDXMENU="\${oldXMenudir}/libXMenu11.a"
3752 OLDXMENU="\${lwlibdir}/liblw.a"
3754 LIBXMENU="\$(OLDXMENU)"
3755 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
3756 OLDXMENU_DEPS="\${OLDXMENU} ../src/\${OLDXMENU}"
3758 ## For a syntactically valid Makefile; not actually used for anything.
3759 ## See comments in src/Makefile.in.
3761 ## FIXME This case (!HAVE_X11 && HAVE_X_WINDOWS) is no longer possible(?).
3762 if test "${HAVE_X_WINDOWS}" = "yes"; then
3771 if test "$HAVE_GTK" = "yes" || test "$HAVE_MENUS" != "yes"; then
3778 AC_SUBST(OLDXMENU_TARGET)
3781 AC_SUBST(LIBX_OTHER)
3782 AC_SUBST(OLDXMENU_DEPS)
3784 if test "${HAVE_MENUS}" = "yes" ; then
3785 AC_DEFINE(HAVE_MENUS, 1,
3786 [Define to 1 if you have mouse menus.
3787 (This is automatic if you use X, but the option to specify it remains.)
3788 It is also defined with other window systems that support xmenu.c.])
3791 if test "${GNU_MALLOC}" = "yes" ; then
3792 AC_DEFINE(GNU_MALLOC, 1,
3793 [Define to 1 if you want to use the GNU memory allocator.])
3797 if test "${REL_ALLOC}" = "yes" ; then
3798 AC_DEFINE(REL_ALLOC, 1,
3799 [Define REL_ALLOC if you want to use the relocating allocator for
3802 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
3804 AC_SUBST(RALLOC_OBJ)
3806 if test "$opsys" = "cygwin"; then
3807 CYGWIN_OBJ="sheap.o"
3808 ## Cygwin differs because of its unexec().
3810 POST_ALLOC_OBJ=lastfile.o
3813 PRE_ALLOC_OBJ=lastfile.o
3816 AC_SUBST(CYGWIN_OBJ)
3817 AC_SUBST(PRE_ALLOC_OBJ)
3818 AC_SUBST(POST_ALLOC_OBJ)
3821 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
3824 ## The -headerpad option tells ld (see man page) to leave room at the
3825 ## end of the header for adding load commands. Needed for dumping.
3826 ## 0x690 is the total size of 30 segment load commands (at 56
3827 ## each); under Cocoa 31 commands are required.
3828 if test "$HAVE_NS" = "yes"; then
3829 libs_nsgui="-framework AppKit"
3835 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
3837 ## This is here because src/Makefile.in did some extra fiddling around
3838 ## with LD_SWITCH_SYSTEM. The cpp logic was:
3839 ## #ifndef LD_SWITCH_SYSTEM
3840 ## #if !defined (__GNUC__) && ((defined (BSD_SYSTEM) && !defined (COFF)))
3841 ## Since all the *bsds define LD_SWITCH_SYSTEM, this simplifies to:
3842 ## not using gcc, darwin.
3843 ## Because this was done in src/Makefile.in, the resulting part of
3844 ## LD_SWITCH_SYSTEM was not used in configure (ie, in ac_link).
3845 ## It therefore seems cleaner to put this in LD_SWITCH_SYSTEM_TEMACS,
3846 ## rather than LD_SWITCH_SYSTEM.
3847 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
3848 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
3851 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
3852 ## find X at run-time.
3853 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
3854 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
3855 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
3856 ## had different values in configure (in ac_link) and src/Makefile.in.
3857 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
3858 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
3860 *) LD_SWITCH_SYSTEM_TEMACS= ;;
3863 if test "$NS_IMPL_GNUSTEP" = "yes"; then
3864 LD_SWITCH_SYSTEM_TEMACS="${LD_SWITCH_SYSTEM_TEMACS} -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES} -lgnustep-gui -lgnustep-base -lobjc -lpthread"
3867 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
3873 ## gnu: GNU needs its own crt0.
3874 aix4-2|cygwin|darwin|gnu|hpux*|irix6-5|sol2*|unixware) ORDINARY_LINK=yes ;;
3876 ## On post 1.3 releases of NetBSD, gcc -nostdlib also clears the
3877 ## library search parth, i.e. it won't search /usr/lib for libc and
3878 ## friends. Using -nostartfiles instead avoids this problem, and
3879 ## will also work on earlier NetBSD releases.
3880 netbsd|openbsd) LD_FIRSTFLAG="-nostartfiles" ;;
3882 ## powerpc*: NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp> says
3883 ## MkLinux/LinuxPPC needs this.
3884 ## s390x-* only supports opsys = gnu-linux so it can be added here.
3886 case "$canonical" in
3887 powerpc*|s390x-*) LD_FIRSTFLAG="-nostdlib" ;;
3893 if test "x$ORDINARY_LINK" = "xyes"; then
3896 AC_DEFINE(ORDINARY_LINK, 1, [Define if the C compiler is the linker.])
3898 ## The system files defining neither ORDINARY_LINK nor LD_FIRSTFLAG are:
3899 ## freebsd, gnu-* not on powerpc*|s390x*.
3900 elif test "x$GCC" = "xyes" && test "x$LD_FIRSTFLAG" = "x"; then
3902 ## Versions of GCC >= 2.0 put their library, libgcc.a, in obscure
3903 ## places that are difficult to figure out at make time. Fortunately,
3904 ## these same versions allow you to pass arbitrary flags on to the
3905 ## linker, so there is no reason not to use it as a linker.
3907 ## Well, it is not quite perfect. The "-nostdlib" keeps GCC from
3908 ## searching for libraries in its internal directories, so we have to
3909 ## ask GCC explicitly where to find libgcc.a (LIB_GCC below).
3910 LD_FIRSTFLAG="-nostdlib"
3913 ## FIXME? What setting of EDIT_LDFLAGS should this have?
3914 test "$NS_IMPL_GNUSTEP" = "yes" && LD_FIRSTFLAG="-rdynamic"
3916 AC_SUBST(LD_FIRSTFLAG)
3919 ## FIXME? The logic here is not precisely the same as that above.
3920 ## There is no check here for a pre-defined LD_FIRSTFLAG.
3921 ## Should we only be setting LIB_GCC if LD ~ -nostdlib?
3923 if test "x$GCC" = "xyes" && test "x$ORDINARY_LINK" != "xyes"; then
3926 freebsd|netbsd|openbsd) LIB_GCC= ;;
3929 ## armin76@gentoo.org reported that the lgcc_s flag is necessary to
3930 ## build on ARM EABI under GNU/Linux. (Bug#5518)
3936 ## FIXME? s/gnu-linux.h used to define LIB_GCC as below, then
3937 ## immediately undefine it again and redefine it to empty.
3938 ## Was the C_SWITCH_X_SITE part really necessary?
3939 ## LIB_GCC=`$CC $C_SWITCH_X_SITE -print-libgcc-file-name`
3945 ## Ask GCC where to find libgcc.a.
3946 *) LIB_GCC=`$CC -print-libgcc-file-name 2> /dev/null` ;;
3952 ## If we're using X11/GNUstep, define some consequences.
3953 if test "$HAVE_X_WINDOWS" = "yes" || test "$HAVE_NS" = "yes"; then
3954 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
3955 AC_DEFINE(HAVE_MOUSE, 1, [Define if you have mouse support.])
3959 AH_TOP([/* GNU Emacs site configuration template file.
3961 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2012
3962 Free Software Foundation, Inc.
3964 This file is part of GNU Emacs.
3966 GNU Emacs is free software: you can redistribute it and/or modify
3967 it under the terms of the GNU General Public License as published by
3968 the Free Software Foundation, either version 3 of the License, or
3969 (at your option) any later version.
3971 GNU Emacs is distributed in the hope that it will be useful,
3972 but WITHOUT ANY WARRANTY; without even the implied warranty of
3973 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
3974 GNU General Public License for more details.
3976 You should have received a copy of the GNU General Public License
3977 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
3980 /* No code in Emacs #includes config.h twice, but some bits of code
3981 intended to work with other packages as well (like gmalloc.c)
3982 think they can include it as many times as they like. */
3983 #ifndef EMACS_CONFIG_H
3984 #define EMACS_CONFIG_H
3988 /* On AIX 3 this must be included before any other include file. */
3991 # error "alloca not available on this machine"
3994 /* Define AMPERSAND_FULL_NAME if you use the convention
3995 that & in the full name stands for the login id. */
3996 /* Turned on June 1996 supposing nobody will mind it. */
3997 #define AMPERSAND_FULL_NAME
3999 /* `subprocesses' should be defined if you want to
4000 have code for asynchronous subprocesses
4001 (as used in M-x compile and M-x shell).
4002 Only MSDOS does not support this (it overrides
4003 this in its config_opsysfile below). */
4005 #define subprocesses
4007 /* Include the os dependent file. */
4008 #ifdef config_opsysfile
4009 # include config_opsysfile
4012 /* GNUstep needs a bit more pure memory. Of the existing knobs,
4013 SYSTEM_PURESIZE_EXTRA seems like the least likely to cause problems.
4014 (There is probably a better place to do this, but right now the
4015 Cocoa side does this in s/darwin.h and we cannot parallel this
4016 exactly since GNUstep is multi-OS. */
4017 #if defined HAVE_NS && defined NS_IMPL_GNUSTEP
4018 # define SYSTEM_PURESIZE_EXTRA 30000
4021 #ifdef emacs /* Don't do this for lib-src. */
4022 /* Tell regex.c to use a type compatible with Emacs. */
4023 #define RE_TRANSLATE_TYPE Lisp_Object
4024 #define RE_TRANSLATE(TBL, C) CHAR_TABLE_TRANSLATE (TBL, C)
4026 /* If make_number is a macro, use it. */
4027 #define RE_TRANSLATE_P(TBL) (!EQ (TBL, make_number (0)))
4029 /* If make_number is a function, avoid it. */
4030 #define RE_TRANSLATE_P(TBL) (!(INTEGERP (TBL) && XINT (TBL) == 0))
4037 #if __GNUC__ >= 3 /* On GCC 3.0 we might get a warning. */
4038 #define NO_INLINE __attribute__((noinline))
4043 #if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 1))
4044 #define EXTERNALLY_VISIBLE __attribute__((externally_visible))
4046 #define EXTERNALLY_VISIBLE
4049 #if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)
4050 # define ATTRIBUTE_FORMAT(spec) __attribute__ ((__format__ spec))
4052 # define ATTRIBUTE_FORMAT(spec) /* empty */
4055 #if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)
4056 # define ATTRIBUTE_FORMAT_PRINTF(formatstring_parameter, first_argument) \
4057 ATTRIBUTE_FORMAT ((__gnu_printf__, formatstring_parameter, first_argument))
4059 # define ATTRIBUTE_FORMAT_PRINTF(formatstring_parameter, first_argument) \
4060 ATTRIBUTE_FORMAT ((__printf__, formatstring_parameter, first_argument))
4063 #define ATTRIBUTE_CONST _GL_ATTRIBUTE_CONST
4065 /* Some versions of GNU/Linux define noinline in their headers. */
4070 /* These won't be used automatically yet. We also need to know, at least,
4071 that the stack is continuous. */
4073 # ifndef GC_SETJMP_WORKS
4074 /* GC_SETJMP_WORKS is nearly always appropriate for GCC. */
4075 # define GC_SETJMP_WORKS 1
4079 #endif /* EMACS_CONFIG_H */
4088 #### Report on what we decided to do.
4089 #### Report GTK as a toolkit, even if it doesn't use Xt.
4090 #### It makes printing result more understandable as using GTK sets
4091 #### toolkit_scroll_bars to yes by default.
4092 if test "${HAVE_GTK}" = "yes"; then
4097 Configured for \`${canonical}'.
4099 Where should the build process find the source code? ${srcdir}
4100 What operating system file should Emacs use? ${opsysfile-none}
4101 What compiler should emacs be built with? ${CC} ${CFLAGS}
4102 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4103 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4104 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4105 What window system should Emacs use? ${window_system}
4106 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4108 if test -n "${x_includes}"; then
4109 echo " Where do we find X Windows header files? ${x_includes}"
4111 echo " Where do we find X Windows header files? Standard dirs"
4113 if test -n "${x_libraries}"; then
4114 echo " Where do we find X Windows libraries? ${x_libraries}"
4116 echo " Where do we find X Windows libraries? Standard dirs"
4119 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4120 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4121 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4122 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4123 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4124 echo " Does Emacs use -lpng? ${HAVE_PNG}"
4125 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4126 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4128 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4129 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4130 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4131 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4132 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4133 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4134 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4136 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4137 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4138 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
4139 echo " Does Emacs use -lxft? ${HAVE_XFT}"
4141 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
4144 if test -n "${EMACSDATA}"; then
4145 echo " Environment variable EMACSDATA set to: $EMACSDATA"
4147 if test -n "${EMACSDOC}"; then
4148 echo " Environment variable EMACSDOC set to: $EMACSDOC"
4153 if test "$HAVE_NS" = "yes"; then
4155 echo "You must run \"${MAKE-make} install\" in order to test the built application.
4156 The installed application will go to nextstep/Emacs.app and can be
4157 run or moved from there."
4158 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
4159 echo "The application will be fully self-contained."
4161 echo "The lisp resources for the application will be installed under ${prefix}.
4162 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
4163 to run if these resources are not installed."
4168 if test "${opsys}" = "cygwin"; then
4170 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
4176 # Remove any trailing slashes in these variables.
4177 [test "${prefix}" != NONE &&
4178 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
4179 test "${exec_prefix}" != NONE &&
4180 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
4182 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
4183 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
4184 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
4185 dnl (else you get "no `Makefile.am' found for any configure output").
4186 dnl This will work, but you get a config.status that is not quite right
4187 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
4188 dnl That doesn't have any obvious consequences for Emacs, but on the whole
4189 dnl it seems better to just live with the duplication.
4190 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"
4192 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
4193 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
4194 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
4197 dnl test/ is not present in release tarfiles.
4198 opt_makefile=test/automated/Makefile
4200 if test -f $srcdir/${opt_makefile}.in; then
4201 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4202 dnl Again, it's best not to use a variable. Though you can add
4203 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
4204 AC_CONFIG_FILES([test/automated/Makefile])
4208 dnl admin/ may or may not be present.
4209 opt_makefile=admin/unidata/Makefile
4211 if test -f $srcdir/${opt_makefile}.in; then
4212 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4213 AC_CONFIG_FILES([admin/unidata/Makefile])
4217 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
4219 AC_SUBST(SUBDIR_MAKEFILES_IN)
4221 dnl Make the necessary directories, if they don't exist.
4222 AC_CONFIG_COMMANDS([mkdirs], [
4223 for dir in etc lisp ; do
4224 test -d ${dir} || mkdir ${dir}
4228 dnl You might wonder (I did) why epaths.h is generated by running make,
4229 dnl rather than just letting configure generate it from epaths.in.
4230 dnl One reason is that the various paths are not fully expanded (see above);
4231 dnl eg gamedir=${prefix}/var/games/emacs.
4232 dnl Secondly, the GNU Coding standards require that one should be able
4233 dnl to run `make prefix=/some/where/else' and override the values set
4234 dnl by configure. This also explains the `move-if-change' test and
4235 dnl the use of force in the `epaths-force' rule in Makefile.in.
4236 AC_CONFIG_COMMANDS([epaths], [
4237 echo creating src/epaths.h
4238 ${MAKE-make} epaths-force
4239 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS"])
4241 AC_CONFIG_COMMANDS([gdbinit], [
4242 if test ! -f src/.gdbinit && test -f $srcdir/src/.gdbinit; then
4243 echo creating src/.gdbinit
4244 echo source $srcdir/src/.gdbinit > src/.gdbinit