1 dnl Autoconf script for GNU Emacs
2 dnl To rebuild the `configure' script from this, execute the command
4 dnl in the directory containing this script.
5 dnl If you changed any AC_DEFINES, also run autoheader.
7 dnl Copyright (C) 1994-1996, 1999-2012 Free Software Foundation, Inc.
9 dnl This file is part of GNU Emacs.
11 dnl GNU Emacs is free software: you can redistribute it and/or modify
12 dnl it under the terms of the GNU General Public License as published by
13 dnl the Free Software Foundation, either version 3 of the License, or
14 dnl (at your option) any later version.
16 dnl GNU Emacs is distributed in the hope that it will be useful,
17 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
18 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 dnl GNU General Public License for more details.
21 dnl You should have received a copy of the GNU General Public License
22 dnl along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
25 AC_INIT(emacs, 24.2.50)
26 AC_CONFIG_HEADER(src/config.h:src/config.in)
27 AC_CONFIG_SRCDIR(src/lisp.h)
28 AC_CONFIG_AUX_DIR(build-aux)
29 dnl Fairly arbitrary, older versions might work too.
30 AM_INIT_AUTOMAKE(1.11)
32 dnl Support for --program-prefix, --program-suffix and
33 dnl --program-transform-name options
36 dnl It is important that variables on the RHS not be expanded here,
37 dnl hence the single quotes. This is per the GNU coding standards, see
38 dnl (autoconf) Installation Directory Variables
39 dnl See also epaths.h below.
40 lispdir='${datadir}/emacs/${version}/lisp'
41 leimdir='${datadir}/emacs/${version}/leim'
42 standardlisppath='${lispdir}:${leimdir}'
43 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
44 '${datadir}/emacs/site-lisp'
45 lisppath='${locallisppath}:${standardlisppath}'
46 etcdir='${datadir}/emacs/${version}/etc'
47 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
48 docdir='${datadir}/emacs/${version}/etc'
49 gamedir='${localstatedir}/games/emacs'
51 dnl Special option to disable the most of other options.
53 [AS_HELP_STRING([--without-all],
54 [omit almost all features and build
55 small executable with minimal dependencies])],
56 with_features=$withval,
59 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
60 dnl Create a new --with option that defaults to being disabled.
61 dnl NAME is the base name of the option. The shell variable with_NAME
62 dnl will be set to either the user's value (if the option is
63 dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
64 dnl option is not specified). Note that the shell variable name is
65 dnl constructed as autoconf does, by replacing non-alphanumeric
66 dnl characters with "_".
67 dnl HELP-STRING is the help text for the option.
68 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
69 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
70 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
73 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
74 dnl Create a new --with option that defaults to $enable_features.
75 dnl NAME is the base name of the option. The shell variable with_NAME
76 dnl will be set either to 'no' (for a plain --without-NAME) or to
77 dnl 'yes' (if the option is not specified). Note that the shell
78 dnl variable name is constructed as autoconf does, by replacing
79 dnl non-alphanumeric characters with "_".
80 dnl HELP-STRING is the help text for the option.
81 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
82 AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
83 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=$with_features])dnl
86 OPTION_DEFAULT_ON([pop],[don't support POP mail retrieval with movemail])
87 if test "$with_pop" = yes; then
88 AC_DEFINE(MAIL_USE_POP)
90 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
92 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
93 if test "$with_kerberos" != no; then
97 [Define to support Kerberos-authenticated POP mail retrieval.])dnl
99 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
100 if test "${with_kerberos5}" != no; then
101 if test "${with_kerberos}" = no; then
105 AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
108 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
109 dnl FIXME hesiod support may not be present, so it seems like an error
110 dnl to define, or at least use, this unconditionally.
111 if test "$with_hesiod" != no; then
112 AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
115 OPTION_DEFAULT_OFF([mmdf],[support MMDF mailboxes])
116 if test "$with_mmdf" != no; then
117 AC_DEFINE(MAIL_USE_MMDF, 1, [Define to support MMDF mailboxes in movemail.])
120 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
121 if test "$with_mail_unlink" != no; then
122 AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
125 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
126 [string giving default POP mail host])],
127 AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
129 OPTION_DEFAULT_ON([sound],[don't compile with sound support])
131 OPTION_DEFAULT_ON([sync-input],[process async input synchronously])
132 if test "$with_sync_input" = yes; then
133 AC_DEFINE(SYNC_INPUT, 1, [Process async input synchronously.])
136 dnl FIXME currently it is not the last.
137 dnl This should be the last --with option, because --with-x is
138 dnl added later on when we find the path of X, and it's best to
139 dnl keep them together visually.
140 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
141 [use an X toolkit (KIT one of: yes or gtk, gtk3, lucid or athena, motif, no)])],
142 [ case "${withval}" in
143 y | ye | yes ) val=gtk ;;
145 l | lu | luc | luci | lucid ) val=lucid ;;
146 a | at | ath | athe | athen | athena ) val=athena ;;
147 m | mo | mot | moti | motif ) val=motif ;;
148 g | gt | gtk ) val=gtk ;;
151 AC_MSG_ERROR([`--with-x-toolkit=$withval' is invalid;
152 this option's value should be `yes', `no', `lucid', `athena', `motif', `gtk' or
153 `gtk3'. `yes' and `gtk' are synonyms. `athena' and `lucid' are synonyms.])
159 OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit)])
160 if test "$with_wide_int" = yes; then
161 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
164 dnl _ON results in a '--without' option in the --help output, so
165 dnl the help text should refer to "don't compile", etc.
166 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
167 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
168 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
169 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
170 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
171 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
172 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
173 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
175 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
176 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
177 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
179 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
180 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
181 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
182 OPTION_DEFAULT_OFF([ns],[use NeXTstep (Cocoa or GNUstep) windowing system])
184 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
185 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
186 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
187 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
188 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
189 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
191 ## For the times when you want to build Emacs but don't have
192 ## a suitable makeinfo, and can live without the manuals.
193 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
194 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
196 ## Makefile.in needs the cache file name.
199 ## This is an option because I do not know if all info/man support
200 ## compressed files, nor how to test if they do so.
201 OPTION_DEFAULT_ON([compress-info],[don't compress the installed Info pages])
202 if test $with_compress_info = yes; then
209 AC_ARG_WITH([pkg-config-prog],dnl
210 [AS_HELP_STRING([--with-pkg-config-prog=PATH],
211 [path to pkg-config for finding GTK and librsvg])])
212 if test "X${with_pkg_config_prog}" != X; then
213 if test "${with_pkg_config_prog}" != yes; then
214 PKG_CONFIG="${with_pkg_config_prog}"
219 AC_ARG_WITH([crt-dir],dnl
220 [AS_HELP_STRING([--with-crt-dir=DIR],[directory containing crtn.o etc.
221 The default is /usr/lib, or /usr/lib64 on some platforms.])])
222 CRT_DIR="${with_crt_dir}"
224 AC_ARG_WITH(gameuser,dnl
225 [AS_HELP_STRING([--with-gameuser=USER],[user for shared game score files])])
226 test "X${with_gameuser}" != X && test "${with_gameuser}" != yes \
227 && gameuser="${with_gameuser}"
228 test "X$gameuser" = X && gameuser=games
230 AC_ARG_WITH([gnustep-conf],dnl
231 [AS_HELP_STRING([--with-gnustep-conf=PATH],[path to GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
232 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
233 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
234 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
235 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
237 AC_ARG_ENABLE(ns-self-contained,
238 [AS_HELP_STRING([--disable-ns-self-contained],
239 [disable self contained build under NeXTstep])],
240 EN_NS_SELF_CONTAINED=$enableval,
241 EN_NS_SELF_CONTAINED=yes)
243 AC_ARG_ENABLE(locallisppath,
244 [AS_HELP_STRING([--enable-locallisppath=PATH],
245 [directories Emacs should search for lisp files specific
247 if test "${enableval}" = "no"; then
249 elif test "${enableval}" != "yes"; then
250 locallisppath=${enableval}
253 AC_ARG_ENABLE(checking,
254 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
255 [enable expensive run-time checks. With LIST,
256 enable only specific categories of checks.
257 Categories are: all,yes,no.
258 Flags are: stringbytes, stringoverrun, stringfreelist,
259 xmallocoverrun, conslist, glyphs])],
260 [ac_checking_flags="${enableval}"],[])
261 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
262 for check in $ac_checking_flags
265 # these set all the flags to specific states
266 yes) ac_enable_checking=1 ;;
267 no) ac_enable_checking= ;
268 ac_gc_check_stringbytes= ;
269 ac_gc_check_string_overrun= ;
270 ac_gc_check_string_free_list= ;
271 ac_xmalloc_overrun= ;
272 ac_gc_check_cons_list= ;
274 all) ac_enable_checking=1 ;
275 ac_gc_check_stringbytes=1 ;
276 ac_gc_check_string_overrun=1 ;
277 ac_gc_check_string_free_list=1 ;
278 ac_xmalloc_overrun=1 ;
279 ac_gc_check_cons_list=1 ;
281 # these enable particular checks
282 stringbytes) ac_gc_check_stringbytes=1 ;;
283 stringoverrun) ac_gc_check_string_overrun=1 ;;
284 stringfreelist) ac_gc_check_string_free_list=1 ;;
285 xmallocoverrun) ac_xmalloc_overrun=1 ;;
286 conslist) ac_gc_check_cons_list=1 ;;
287 glyphs) ac_glyphs_debug=1 ;;
288 *) AC_MSG_ERROR(unknown check category $check) ;;
293 if test x$ac_enable_checking != x ; then
294 AC_DEFINE(ENABLE_CHECKING, 1,
295 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
297 if test x$ac_gc_check_stringbytes != x ; then
298 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
299 [Define this temporarily to hunt a bug. If defined, the size of
300 strings is redundantly recorded in sdata structures so that it can
301 be compared to the sizes recorded in Lisp strings.])
303 if test x$ac_gc_check_string_overrun != x ; then
304 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
305 [Define this to check for short string overrun.])
307 if test x$ac_gc_check_string_free_list != x ; then
308 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
309 [Define this to check the string free list.])
311 if test x$ac_xmalloc_overrun != x ; then
312 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
313 [Define this to check for malloc buffer overrun.])
315 if test x$ac_gc_check_cons_list != x ; then
316 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
317 [Define this to check for errors in cons list.])
319 if test x$ac_glyphs_debug != x ; then
320 AC_DEFINE(GLYPH_DEBUG, 1,
321 [Define this to enable glyphs debugging code.])
324 AC_ARG_ENABLE(check-lisp-object-type,
325 [AS_HELP_STRING([--enable-check-lisp-object-type],
326 [enable compile time checks for the Lisp_Object data type.
327 This is useful for development for catching certain types of bugs.])],
328 if test "${enableval}" != "no"; then
329 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
330 [Define this to enable compile time checks for the Lisp_Object data type.])
334 AC_ARG_ENABLE(profiling,
335 [AS_HELP_STRING([--enable-profiling],
336 [build emacs with profiling support.
337 This might not work on all platforms])],
338 [ac_enable_profiling="${enableval}"],[])
339 if test x$ac_enable_profiling != x ; then
340 PROFILING_CFLAGS="-DPROFILING=1 -pg"
344 AC_SUBST(PROFILING_CFLAGS)
346 AC_ARG_ENABLE(autodepend,
347 [AS_HELP_STRING([--enable-autodepend],
348 [automatically generate dependencies to .h-files.
349 Requires GNU Make and Gcc. Enabled if GNU Make and Gcc is
351 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
353 #### Make srcdir absolute, if it isn't already. It's important to
354 #### avoid running the path through pwd unnecessarily, since pwd can
355 #### give you automounter prefixes, which can go away. We do all this
356 #### so Emacs can find its files when run uninstalled.
357 ## Make sure CDPATH doesn't affect cd (in case PWD is relative).
362 ## We may be able to use the $PWD environment variable to make this
363 ## absolute. But sometimes PWD is inaccurate.
364 ## Note: we used to use ${PWD} at the end instead of `pwd`,
365 ## but that tested only for a well-formed and valid PWD,
366 ## it did not object when PWD was well-formed and valid but just wrong.
367 if test ".${PWD}" != "." && test ".`(cd ${PWD} ; sh -c pwd)`" = ".`pwd`" ;
371 srcdir="`(cd ${srcdir}; pwd)`"
374 * ) srcdir="`(cd ${srcdir}; pwd)`" ;;
377 ### Canonicalize the configuration name.
381 configuration=${host_alias-${build_alias-$host}}
383 dnl This used to use changequote, but, apart from `changequote is evil'
384 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
385 dnl the great gob of text. Thus it's not processed for possible expansion.
386 dnl Just make sure the brackets remain balanced.
388 dnl Since Emacs can't find matching pairs of quotes, boundaries are
389 dnl indicated by comments.
393 ### If you add support for a new configuration, add code to this
394 ### switch statement to recognize your configuration name and select
395 ### the appropriate operating system file.
397 ### You would hope that you could choose an s/*.h
398 ### file based on the operating system portion. However, it turns out
399 ### that each s/*.h file is pretty manufacturer-specific.
400 ### So we basically have to have a special case for each
401 ### configuration name.
403 ### As far as handling version numbers on operating systems is
404 ### concerned, make sure things will fail in a fixable way. If
405 ### /etc/MACHINES doesn't say anything about version numbers, be
406 ### prepared to handle anything reasonably. If version numbers
407 ### matter, be sure /etc/MACHINES says something about it.
410 case "${canonical}" in
412 ## GNU/Linux and similar ports
422 ## FreeBSD kernel + glibc based userland
437 ## Apple Darwin / Mac OS X
439 case "${canonical}" in
446 ## Use fink packages if available.
447 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
448 ## if test -d /sw/include && test -d /sw/lib; then
449 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
450 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
454 ## HP 9000 series 700 and 800, running HP/UX
458 hppa*-hp-hpux1[1-9]* )
460 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
464 rs6000-ibm-aix4.[23]* )
467 powerpc-ibm-aix4.[23]* )
470 rs6000-ibm-aix[56]* )
473 powerpc-ibm-aix[56]* )
477 ## Silicon Graphics machines
481 # Without defining _LANGUAGE_C, things get masked out in the headers
482 # so that, for instance, grepping for `free' in stdlib.h fails and
483 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
484 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
489 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
490 | x86_64-*-solaris2* | x86_64-*-sunos5*)
491 case "${canonical}" in
493 amd64-*-*|x86_64-*-*) ;;
497 case "${canonical}" in
498 *-sunos5.6* | *-solaris2.6* )
502 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
504 emacs_check_sunpro_c=yes
506 *-sunos5* | *-solaris* )
508 emacs_check_sunpro_c=yes
511 ## Watch out for a compiler that we know will not work.
512 case "${canonical}" in
513 *-solaris* | *-sunos5* )
514 if [ "x$CC" = x/usr/ucb/cc ]; then
515 ## /usr/ucb/cc doesn't work;
516 ## we should find some other compiler that does work.
524 ## Intel 386 machines where we don't care about the manufacturer.
526 case "${canonical}" in
527 *-cygwin ) opsys=cygwin ;;
528 *-darwin* ) opsys=darwin ;;
529 *-sysv4.2uw* ) opsys=unixware ;;
530 *-sysv5uw* ) opsys=unixware ;;
531 *-sysv5OpenUNIX* ) opsys=unixware ;;
532 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
541 ### If the code above didn't choose an operating system, just choose
542 ### an operating system based on the configuration name. You really
543 ### only want to use this when you have no idea what the right
544 ### operating system is; if you know what operating systems a machine
545 ### runs, it's cleaner to make it explicit in the case statement
547 if test x"${opsys}" = x; then
548 case "${canonical}" in
549 *-gnu* ) opsys=gnu ;;
559 if test $unported = yes; then
560 AC_MSG_ERROR([Emacs hasn't been ported to `${canonical}' systems.
561 Check `etc/MACHINES' for recognized configuration names.])
565 #### Choose a compiler.
567 dnl Sets GCC=yes if using gcc.
571 if test x$GCC = xyes; then
572 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
574 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
577 # Initialize gnulib right after choosing the compiler.
580 AC_ARG_ENABLE([gcc-warnings],
581 [AS_HELP_STRING([--enable-gcc-warnings],
582 [turn on lots of GCC warnings. This is intended for
583 developers, and may generate false alarms when used
584 with older or non-GNU development tools.])],
587 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
589 gl_gcc_warnings=$enableval],
593 AC_ARG_ENABLE(link-time-optimization,
594 [AS_HELP_STRING([--enable-link-time-optimization],
595 [build emacs with link-time optimization.
596 This is supported only for GCC since 4.5.0.])],
597 if test "${enableval}" != "no"; then
598 AC_MSG_CHECKING([whether link-time optimization is supported])
600 if test x$GCC = xyes; then
601 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
602 if test x$CPUS != x; then
608 CFLAGS="$CFLAGS $LTO"
609 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
610 [ac_lto_supported=yes], [ac_lto_supported=no])
613 AC_MSG_RESULT([$ac_lto_supported])
614 if test "$ac_lto_supported" = "yes"; then
615 CFLAGS="$CFLAGS $LTO"
619 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
620 # ------------------------------------------------
621 # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
622 # Otherwise, run RUN-IF-NOT-FOUND.
623 AC_DEFUN([gl_GCC_VERSION_IFELSE],
627 #if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
630 # error "your version of gcc is older than $1.$2"
637 # When compiling with GCC, prefer -isystem to -I when including system
638 # include files, to avoid generating useless diagnostics for the files.
639 if test "$gl_gcc_warnings" != yes; then
644 # This, $nw, is the list of warnings we disable.
647 case $with_x_toolkit in
648 lucid | athena | motif)
649 # Old toolkits mishandle 'const'.
650 nw="$nw -Wwrite-strings"
653 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
656 AC_SUBST([WERROR_CFLAGS])
658 nw="$nw -Waggregate-return" # anachronistic
659 nw="$nw -Wlong-long" # C90 is anachronistic
660 nw="$nw -Wc++-compat" # We don't care about C++ compilers
661 nw="$nw -Wundef" # Warns on '#if GNULIB_FOO' etc in gnulib
662 nw="$nw -Wtraditional" # Warns on #elif which we use often
663 nw="$nw -Wcast-qual" # Too many warnings for now
664 nw="$nw -Wconversion" # Too many warnings for now
665 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
666 nw="$nw -Wsign-conversion" # Too many warnings for now
667 nw="$nw -Woverlength-strings" # Not a problem these days
668 nw="$nw -Wtraditional-conversion" # Too many warnings for now
669 nw="$nw -Wunreachable-code" # so buggy that it's now silently ignored
670 nw="$nw -Wpadded" # Our structs are not padded
671 nw="$nw -Wredundant-decls" # we regularly (re)declare functions
672 nw="$nw -Wlogical-op" # any use of fwrite provokes this
673 nw="$nw -Wformat-nonliteral" # we do this a lot
674 nw="$nw -Wvla" # warnings in gettext.h
675 nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
676 nw="$nw -Wswitch-enum" # Too many warnings for now
677 nw="$nw -Wswitch-default" # Too many warnings for now
678 nw="$nw -Wfloat-equal" # warns about high-quality code
679 nw="$nw -Winline" # OK to ignore 'inline'
680 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
681 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
683 # Emacs doesn't care about shadowing; see
684 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
687 # The following lines should be removable at some point.
688 nw="$nw -Wstack-protector"
689 nw="$nw -Wstrict-overflow"
690 nw="$nw -Wsuggest-attribute=pure"
692 gl_MANYWARN_ALL_GCC([ws])
693 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
697 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
698 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
699 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
700 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
701 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
702 gl_WARN_ADD([-Wno-format-nonliteral])
704 # In spite of excluding -Wlogical-op above, it is enabled, as of
705 # gcc 4.5.0 20090517.
706 gl_WARN_ADD([-Wno-logical-op])
708 gl_WARN_ADD([-fdiagnostics-show-option])
709 gl_WARN_ADD([-funit-at-a-time])
711 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
712 AC_DEFINE([_FORTIFY_SOURCE], [2],
713 [enable compile-time and run-time bounds-checking, and some warnings])
714 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
716 # We use a slightly smaller set of warning options for lib/.
717 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
719 nw="$nw -Wunused-macros"
721 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
722 AC_SUBST([GNULIB_WARN_CFLAGS])
727 dnl Some other nice autoconf tests.
728 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
731 dnl if test "x$RANLIB" = x; then
736 AC_PATH_PROG(INSTALL_INFO, install-info, :,
737 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
738 dnl Don't use GZIP, which is used by gzip for additional parameters.
739 AC_PATH_PROG(GZIP_PROG, gzip)
741 if test $opsys = gnu-linux; then
742 AC_PATH_PROG(PAXCTL, paxctl,,
743 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
744 if test "X$PAXCTL" != X; then
745 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
746 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
747 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
748 else AC_MSG_RESULT(no); PAXCTL=""; fi])
752 ## Need makeinfo >= 4.7 (?) to build the manuals.
753 AC_PATH_PROG(MAKEINFO, makeinfo, no)
754 dnl By this stage, configure has already checked for egrep and set EGREP,
755 dnl or exited with an error if no egrep was found.
756 if test "$MAKEINFO" != "no" && \
757 test x"`$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
761 ## Makeinfo is unusual. For a released Emacs, the manuals are
762 ## pre-built, and not deleted by the normal clean rules. makeinfo is
763 ## therefore in the category of "special tools" not normally required, which
764 ## configure does not have to check for (eg autoconf itself).
765 ## In a Bazaar checkout on the other hand, the manuals are not included.
766 ## So makeinfo is a requirement to build from Bazaar, and configure
767 ## should test for it as it does for any other build requirement.
768 ## We use the presence of $srcdir/info/emacs to distinguish a release,
769 ## with pre-built manuals, from a Bazaar checkout.
772 if test "$MAKEINFO" = "no"; then
774 if test "x${with_makeinfo}" = "xno"; then
776 elif test ! -e $srcdir/info/emacs; then
777 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
778 source tree does not seem to have pre-built manuals in the `info' directory.
779 Either install a suitable version of makeinfo, or re-run configure
780 with the `--without-makeinfo' option to build without the manuals.] )
783 AC_SUBST(HAVE_MAKEINFO)
785 dnl Just so that there is only a single place we need to edit.
791 dnl Add our options to ac_link now, after it is set up.
793 if test x$GCC = xyes; then
794 test "x$GCC_LINK_TEST_OPTIONS" != x && \
795 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
797 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
798 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
801 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
802 dnl If we can link with the flag, it shouldn't do any harm anyhow.
803 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
804 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
805 dnl if not built to support GNU ld.
807 late_LDFLAGS=$LDFLAGS
808 if test x$GCC = xyes; then
809 LDFLAGS="$LDFLAGS -Wl,-znocombreloc"
811 LDFLAGS="$LDFLAGS -znocombreloc"
814 AC_MSG_CHECKING([for -znocombreloc])
815 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
816 [AC_MSG_RESULT(yes)],
817 LDFLAGS=$late_LDFLAGS
821 dnl The function dump-emacs will not be defined and temacs will do
822 dnl (load "loadup") automatically unless told otherwise.
823 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
825 your-opsys-here) CANNOT_DUMP=yes ;;
828 test "$CANNOT_DUMP" = "yes" && \
829 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
831 AC_SUBST(CANNOT_DUMP)
836 # MSDOS uses unexcoff.o
837 # MSWindows uses unexw32.o
845 UNEXEC_OBJ=unexmacosx.o
848 UNEXEC_OBJ=unexhp9k800.o
851 # Use the Solaris dldump() function, called from unexsol.c, to dump
852 # emacs, instead of the generic ELF dump code found in unexelf.c.
853 # The resulting binary has a complete symbol table, and is better
854 # for debugging and other observability tools (debuggers, pstack, etc).
856 # If you encounter a problem using dldump(), please consider sending
857 # a message to the OpenSolaris tools-linking mailing list:
858 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
860 # It is likely that dldump() works with older Solaris too, but this has
861 # not been tested, so for now this change is for Solaris 10 or newer.
869 ## Let `ld' find image libs and similar things in /usr/local/lib.
870 ## The system compiler, GCC, has apparently been modified to not
871 ## look there, contrary to what a stock GCC would do.
872 ### It's not our place to do this. See bug#10313#17.
873 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
878 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
879 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
883 ### It's not our place to do this. See bug#10313#17.
884 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
889 ## Han Boetes <han@mijncomputer.nl> says this is necessary,
890 ## otherwise Emacs dumps core on elf systems.
891 LD_SWITCH_SYSTEM="-Z"
894 AC_SUBST(LD_SWITCH_SYSTEM)
896 ac_link="$ac_link $LD_SWITCH_SYSTEM"
898 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
899 ## which has not been defined yet. When this was handled with cpp,
900 ## it was expanded to null when configure sourced the s/*.h file.
901 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
902 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
903 ## (or somesuch), but because it is supposed to go at the _front_
904 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
905 ## Compare with the gnu-linux case below, which added to the end
906 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
907 ## LD_SWITCH_SYSTEM_TEMACS.
910 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
917 AC_CHECK_DECL([__ELF__])
918 if test "$ac_cv_have_decl___ELF__" = "yes"; then
919 ## With ELF, make sure that all common symbols get allocated to in the
920 ## data section. Otherwise, the dump of temacs may miss variables in
921 ## the shared library that have been initialized. For example, with
922 ## GNU libc, __malloc_initialized would normally be resolved to the
923 ## shared library's .bss section, which is fatal.
924 if test "x$GCC" = "xyes"; then
925 C_SWITCH_MACHINE="-fno-common"
927 AC_MSG_ERROR([What gives? Fix me if DEC Unix supports ELF now.])
930 UNEXEC_OBJ=unexalpha.o
934 AC_SUBST(C_SWITCH_MACHINE)
939 ## Some programs in src produce warnings saying certain subprograms
940 ## are too complex and need a MAXMEM value greater than 2000 for
941 ## additional optimization. --nils@exp-math.uni-essen.de
942 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
943 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
944 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
945 ## It is redundant in glibc2, since we define _GNU_SOURCE.
946 AC_SUBST(C_SWITCH_SYSTEM)
951 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
952 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
954 freebsd) LIBS_SYSTEM="-lutil" ;;
956 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
958 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
960 ## Motif needs -lgen.
961 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
963 AC_SUBST(LIBS_SYSTEM)
966 ### Make sure subsequent tests use flags consistent with the build flags.
968 if test x"${OVERRIDE_CPPFLAGS}" != x; then
969 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
971 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
974 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C89 or better.
975 AC_DEFUN([AC_TYPE_SIZE_T])
976 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
977 AC_DEFUN([AC_TYPE_UID_T])
983 dnl Current possibilities handled by sed (aix4-2 -> aix,
984 dnl gnu-linux -> gnu/linux, etc.):
985 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
986 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
987 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
989 dnl NB do not use CRT_DIR unquoted here, since it might not be set yet.
993 START_FILES='pre-crt0.o'
996 ## Adding -lm confuses the dynamic linker, so omit it.
998 START_FILES='pre-crt0.o'
1001 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtn.o'
1002 START_FILES='pre-crt0.o $(CRT_DIR)/crt1.o $(CRT_DIR)/crti.o'
1003 SYSTEM_TYPE=berkeley-unix
1005 gnu-linux | gnu-kfreebsd )
1006 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtn.o'
1007 START_FILES='pre-crt0.o $(CRT_DIR)/crt1.o $(CRT_DIR)/crti.o'
1009 hpux10-20 | hpux11 )
1011 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o'
1013 dnl NB this may be adjusted below.
1015 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o'
1016 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o $(CRT_DIR)/crtbegin.o'
1017 SYSTEM_TYPE=berkeley-unix
1021 SYSTEM_TYPE=usg-unix-v
1027 AC_SUBST(START_FILES)
1028 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1029 [The type of system you are compiling for; sets `system-type'.])
1031 dnl Not all platforms use crtn.o files. Check if the current one does.
1034 for file in x $LIB_STANDARD $START_FILES; do
1036 *CRT_DIR*) crt_files="$crt_files `echo $file | sed -e 's|.*/||'`" ;;
1040 if test "x$crt_files" != x; then
1042 ## If user specified a crt-dir, use that unconditionally.
1045 if test "X$CRT_DIR" = "X"; then
1047 CRT_DIR=/usr/lib # default
1049 case "$canonical" in
1050 x86_64-*-linux-gnu* | s390x-*-linux-gnu*)
1051 ## On x86-64 and s390x GNU/Linux distributions, the standard library
1052 ## can be in a variety of places. We only try /usr/lib64 and /usr/lib.
1053 ## For anything else (eg /usr/lib32), it is up the user to specify
1054 ## the location (bug#5655).
1055 ## Test for crtn.o, not just the directory, because sometimes the
1056 ## directory exists but does not have the relevant files (bug#1287).
1057 ## FIXME better to test for binary compatibility somehow.
1058 test -e /usr/lib64/crtn.o && CRT_DIR=/usr/lib64
1061 powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*) CRT_DIR=/usr/lib64 ;;
1065 hpux10-20) CRT_DIR=/lib ;;
1068 test "x${GCC}" = xyes && crt_gcc=yes
1074 for file in $crt_files; do
1076 ## If we're using gcc, try to determine it automatically by asking
1077 ## gcc. [If this doesn't work, CRT_DIR will remain at the
1078 ## system-dependent default from above.]
1079 if test $crt_gcc = yes && test ! -e $CRT_DIR/$file; then
1081 crt_file=`$CC --print-file-name=$file 2>/dev/null`
1084 CRT_DIR=`AS_DIRNAME(["$crt_file"])`
1089 dnl We expect all the files to be in a single directory, so after the
1090 dnl first there is no point asking gcc.
1093 test -e $CRT_DIR/$file || crt_missing="$crt_missing $file"
1096 test "x$crt_missing" = x || \
1097 AC_MSG_ERROR([Required file(s) not found:$crt_missing
1098 Try using the --with-crt-dir option.])
1100 fi # crt_files != ""
1106 if test -f $CRT_DIR/crti.o; then
1108 test -f $CRT_DIR/crtn.o || \
1109 AC_MSG_ERROR([Required file not found: crtn.o])
1111 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o $(CRT_DIR)/crtn.o'
1112 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o $(CRT_DIR)/crti.o $(CRT_DIR)/crtbegin.o'
1118 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1119 pre_PKG_CONFIG_LIBS=$LIBS
1121 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
1123 dnl This function definition taken from Gnome 2.0
1124 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
1125 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
1126 dnl also defines GSTUFF_PKG_ERRORS on error
1127 AC_DEFUN([PKG_CHECK_MODULES], [
1130 if test "$PKG_CONFIG" = "no" ; then
1131 ifelse([$4], , [AC_MSG_ERROR([
1132 *** 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])
1134 PKG_CONFIG_MIN_VERSION=0.9.0
1135 if $PKG_CONFIG --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
1136 AC_MSG_CHECKING(for $2)
1138 if $PKG_CONFIG --exists "$2" 2>&AS_MESSAGE_LOG_FD &&
1139 $1_CFLAGS=`$PKG_CONFIG --cflags "$2" 2>&AS_MESSAGE_LOG_FD` &&
1140 $1_LIBS=`$PKG_CONFIG --libs "$2" 2>&AS_MESSAGE_LOG_FD`; then
1147 $1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1148 $1_LIBS=`AS_ECHO(["$$1_LIBS"]) | sed -e 's,///*,/,g'`
1149 AC_MSG_RESULT([yes CFLAGS='$$1_CFLAGS' LIBS='$$1_LIBS'])
1155 ## If we have a custom action on failure, don't print errors, but
1156 ## do set a variable so people can do so.
1157 $1_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "$2"`
1158 ifelse([$4], ,echo $$1_PKG_ERRORS,)
1164 echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
1165 echo "*** See http://www.freedesktop.org/software/pkgconfig"
1169 if test $succeeded = yes; then
1170 ifelse([$3], , :, [$3])
1172 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])
1177 if test "${with_sound}" != "no"; then
1178 # Sound support for GNU/Linux and the free BSDs.
1179 AC_CHECK_HEADERS(machine/soundcard.h sys/soundcard.h soundcard.h,
1180 have_sound_header=yes)
1181 # Emulation library used on NetBSD.
1182 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1186 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1187 PKG_CHECK_MODULES(ALSA, $ALSA_MODULES, HAVE_ALSA=yes, HAVE_ALSA=no)
1188 if test $HAVE_ALSA = yes; then
1189 SAVE_CFLAGS="$CFLAGS"
1191 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1192 LIBS="$ALSA_LIBS $LIBS"
1193 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1194 emacs_alsa_normal=yes,
1195 emacs_alsa_normal=no)
1196 if test "$emacs_alsa_normal" != yes; then
1197 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1198 [[snd_lib_error_set_handler (0);]])],
1199 emacs_alsa_subdir=yes,
1200 emacs_alsa_subdir=no)
1201 if test "$emacs_alsa_subdir" != yes; then
1202 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1204 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1207 CFLAGS="$SAVE_CFLAGS"
1209 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1210 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1211 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1214 dnl Define HAVE_SOUND if we have sound support. We know it works and
1215 dnl compiles only on the specified platforms. For others, it
1216 dnl probably doesn't make sense to try.
1217 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1219 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1220 gnu-linux|freebsd|netbsd)
1221 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1226 AC_SUBST(CFLAGS_SOUND)
1229 dnl checks for header files
1230 AC_CHECK_HEADERS_ONCE(
1231 linux/version.h sys/systeminfo.h
1232 stdio_ext.h fcntl.h coff.h pty.h
1233 sys/vlimit.h sys/resource.h
1234 sys/utsname.h pwd.h utmp.h dirent.h util.h)
1236 AC_MSG_CHECKING(if personality LINUX32 can be set)
1237 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1238 emacs_cv_personality_linux32=yes,
1239 emacs_cv_personality_linux32=no)
1240 AC_MSG_RESULT($emacs_cv_personality_linux32)
1242 if test $emacs_cv_personality_linux32 = yes; then
1243 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1244 [Define to 1 if personality LINUX32 can be set.])
1247 dnl On Solaris 8 there's a compilation warning for term.h because
1248 dnl it doesn't define `bool'.
1249 AC_CHECK_HEADERS(term.h, , , -)
1251 AC_CHECK_DECLS([sys_siglist])
1252 if test $ac_cv_have_decl_sys_siglist != yes; then
1253 # For Tru64, at least:
1254 AC_CHECK_DECLS([__sys_siglist])
1255 if test $ac_cv_have_decl___sys_siglist = yes; then
1256 AC_DEFINE(sys_siglist, __sys_siglist,
1257 [Define to any substitute for sys_siglist.])
1262 dnl Check for speed_t typedef.
1263 AC_CACHE_CHECK(for speed_t, emacs_cv_speed_t,
1264 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <termios.h>]], [[speed_t x = 1;]])],
1265 emacs_cv_speed_t=yes, emacs_cv_speed_t=no)])
1266 if test $emacs_cv_speed_t = yes; then
1267 AC_DEFINE(HAVE_SPEED_T, 1,
1268 [Define to 1 if `speed_t' is declared by <termios.h>.])
1271 AC_CACHE_CHECK(for struct exception, emacs_cv_struct_exception,
1272 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <math.h>]],
1273 [[static struct exception x; x.arg1 = x.arg2 = x.retval; x.name = ""; x.type = 1;]])],
1274 emacs_cv_struct_exception=yes, emacs_cv_struct_exception=no))
1275 HAVE_EXCEPTION=$emacs_cv_struct_exception
1276 dnl Define on Darwin so emacs symbols will not conflict with those
1277 dnl in the System framework. Otherwise -prebind will not work.
1278 if test $emacs_cv_struct_exception != yes || test $opsys = darwin; then
1279 AC_DEFINE(NO_MATHERR, 1, [Define to 1 if you don't have struct exception in math.h.])
1282 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1283 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1284 #if HAVE_SYS_SOCKET_H
1285 #include <sys/socket.h>
1287 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1288 #if HAVE_SYS_SOCKET_H
1289 #include <sys/socket.h>
1291 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1292 #if HAVE_SYS_SOCKET_H
1293 #include <sys/socket.h>
1296 dnl checks for structure members
1297 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1298 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1299 struct ifreq.ifr_addr,
1300 struct ifreq.ifr_addr.sa_len], , ,
1301 [AC_INCLUDES_DEFAULT
1302 #if HAVE_SYS_SOCKET_H
1303 #include <sys/socket.h>
1309 dnl Check for endianness.
1310 dnl AC_C_BIGENDIAN is done by gnulib.
1312 dnl check for Make feature
1313 dnl AC_PROG_MAKE_SET is done by Automake.
1318 dnl check for GNU Make if we have GCC and autodepend is on.
1319 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1320 AC_MSG_CHECKING([whether we are using GNU Make])
1322 testval=`${MAKE-make} --version 2>/dev/null | grep 'GNU Make'`
1323 if test "x$testval" != x; then
1326 ac_enable_autodepend=no
1328 AC_MSG_RESULT([$HAVE_GNU_MAKE])
1329 if test $HAVE_GNU_MAKE = yes; then
1330 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1331 SAVE_CFLAGS="$CFLAGS"
1332 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1333 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1334 CFLAGS="$SAVE_CFLAGS"
1335 test -f deps.d || ac_enable_autodepend=no
1337 AC_MSG_RESULT([$ac_enable_autodepend])
1339 if test $ac_enable_autodepend = yes; then
1340 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1341 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1342 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1343 deps_frag=autodeps.mk
1346 deps_frag=$srcdir/src/$deps_frag
1349 AC_SUBST_FILE(deps_frag)
1352 lisp_frag=$srcdir/src/lisp.mk
1353 AC_SUBST_FILE(lisp_frag)
1356 dnl checks for operating system services
1357 AC_SYS_LONG_FILE_NAMES
1359 #### Choose a window system.
1362 if test "$no_x" = yes; then
1368 LD_SWITCH_X_SITE_RPATH=
1369 if test "${x_libraries}" != NONE; then
1370 if test -n "${x_libraries}"; then
1371 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1372 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1374 x_default_search_path=""
1375 x_search_path=${x_libraries}
1376 if test -z "${x_search_path}"; then
1377 x_search_path=/usr/lib
1379 for x_library in `echo ${x_search_path}: | \
1380 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1382 ${x_library}/X11/%L/%T/%N%C%S:\
1383 ${x_library}/X11/%l/%T/%N%C%S:\
1384 ${x_library}/X11/%T/%N%C%S:\
1385 ${x_library}/X11/%L/%T/%N%S:\
1386 ${x_library}/X11/%l/%T/%N%S:\
1387 ${x_library}/X11/%T/%N%S"
1388 if test x"${x_default_search_path}" = x; then
1389 x_default_search_path=${x_search_path}
1391 x_default_search_path="${x_search_path}:${x_default_search_path}"
1395 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1397 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1398 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1401 if test x"${x_includes}" = x; then
1402 bitmapdir=/usr/include/X11/bitmaps
1404 # accumulate include directories that have X11 bitmap subdirectories
1406 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1407 if test -d "${bmd}/X11/bitmaps"; then
1408 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1410 if test -d "${bmd}/bitmaps"; then
1411 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1414 if test ${bmd_acc} != "dummyval"; then
1415 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1422 tmp_CPPFLAGS="$CPPFLAGS"
1423 tmp_CFLAGS="$CFLAGS"
1424 CPPFLAGS="$CPPFLAGS -x objective-c"
1425 CFLAGS="$CFLAGS -x objective-c"
1426 TEMACS_LDFLAGS2="\${LDFLAGS}"
1428 if test "${with_ns}" != no; then
1429 if test "${opsys}" = darwin; then
1431 ns_appdir=`pwd`/nextstep/Emacs.app
1432 ns_appbindir=${ns_appdir}/Contents/MacOS
1433 ns_appresdir=${ns_appdir}/Contents/Resources
1434 ns_appsrc=${srcdir}/nextstep/Cocoa/Emacs.base
1435 elif test -f $GNUSTEP_CONFIG_FILE; then
1437 ns_appdir=`pwd`/nextstep/Emacs.app
1438 ns_appbindir=${ns_appdir}
1439 ns_appresdir=${ns_appdir}/Resources
1440 ns_appsrc=${srcdir}/nextstep/GNUstep/Emacs.base
1441 dnl FIXME sourcing this several times in subshells seems inefficient.
1442 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1443 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1444 dnl I seemed to need these as well with GNUstep-startup 0.25.
1445 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1446 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1447 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1448 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1449 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1450 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1451 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1452 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1453 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1457 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1458 dnl If they had chosen to either define it or not, we could have
1459 dnl just used AC_CHECK_DECL here.
1460 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1461 emacs_cv_objc_exceptions,
1462 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1463 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1467 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1468 if test $emacs_cv_objc_exceptions = yes; then
1469 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1470 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1471 [Define if GNUstep uses ObjC exceptions.])
1472 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1476 dnl This is only used while we test the NS headers, it gets reset below.
1477 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1479 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1480 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1481 files are missing or cannot be compiled.])])
1482 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1484 ns_have_nsinteger=yes,
1485 ns_have_nsinteger=no)
1486 if test $ns_have_nsinteger = yes; then
1487 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1490 AC_SUBST(TEMACS_LDFLAGS2)
1492 INSTALL_ARCH_INDEP_EXTRA=install-etc
1493 ns_self_contained=no
1497 if test "${HAVE_NS}" = yes; then
1498 if test "$with_toolkit_scroll_bars" = "no"; then
1499 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1502 window_system=nextstep
1504 # set up packaging dirs
1505 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1506 ns_self_contained=yes
1507 prefix=${ns_appresdir}
1508 exec_prefix=${ns_appbindir}
1509 dnl This one isn't really used, only archlibdir is.
1510 libexecdir="\${ns_appbindir}/libexec"
1511 archlibdir="\${ns_appbindir}/libexec"
1512 docdir="\${ns_appresdir}/etc"
1513 etcdir="\${ns_appresdir}/etc"
1514 dnl FIXME maybe set datarootdir instead.
1515 dnl That would also get applications, icons, man.
1516 infodir="\${ns_appresdir}/info"
1517 mandir="\${ns_appresdir}/man"
1518 lispdir="\${ns_appresdir}/lisp"
1519 leimdir="\${ns_appresdir}/leim"
1520 INSTALL_ARCH_INDEP_EXTRA=
1522 ns_frag=$srcdir/src/ns.mk
1523 NS_OBJ="fontset.o fringe.o image.o"
1524 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o"
1526 CFLAGS="$tmp_CFLAGS"
1527 CPPFLAGS="$tmp_CPPFLAGS"
1528 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1529 AC_SUBST(ns_self_contained)
1531 AC_SUBST(NS_OBJC_OBJ)
1532 AC_SUBST(LIB_STANDARD)
1533 AC_SUBST_FILE(ns_frag)
1535 case "${window_system}" in
1539 case "${with_x_toolkit}" in
1540 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1541 motif ) USE_X_TOOLKIT=MOTIF ;;
1543 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1544 dnl USE_X_TOOLKIT is set.
1545 USE_X_TOOLKIT=none ;;
1546 gtk3 ) with_gtk3=yes
1547 USE_X_TOOLKIT=none ;;
1548 no ) USE_X_TOOLKIT=none ;;
1549 dnl If user did not say whether to use a toolkit, make this decision later:
1550 dnl use the toolkit if we have gtk, or X11R5 or newer.
1551 * ) USE_X_TOOLKIT=maybe ;;
1561 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1562 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1563 if test "$HAVE_XSERVER" = true ||
1564 test -n "$DISPLAY" ||
1565 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1566 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1567 were found. You should install the relevant development files for X
1568 and for the toolkit you want, such as Gtk+, Lesstif or Motif. Also make
1569 sure you have development files for image handling, i.e.
1570 tiff, gif, jpeg, png and xpm.
1571 If you are sure you want Emacs compiled without X window support, pass
1577 ### If we're using X11, we should use the X menu package.
1580 yes ) HAVE_MENUS=yes ;;
1583 # Does the opsystem file prohibit the use of the GNU malloc?
1584 # Assume not, until told otherwise.
1588 [whether malloc is Doug Lea style],
1589 [emacs_cv_var_doug_lea_malloc],
1592 [[#include <malloc.h>
1593 static void hook (void) {}]],
1594 [[malloc_set_state (malloc_get_state ());
1595 __after_morecore_hook = hook;
1596 __malloc_initialize_hook = hook;]])],
1597 [emacs_cv_var_doug_lea_malloc=yes],
1598 [emacs_cv_var_doug_lea_malloc=no])])
1599 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1602 dnl See comments in aix4-2.h about maybe using system malloc there.
1605 ## darwin ld insists on the use of malloc routines in the System framework.
1606 darwin|sol2-10) system_malloc=yes ;;
1609 if test "${system_malloc}" = "yes"; then
1610 AC_DEFINE(SYSTEM_MALLOC, 1, [Define to use system malloc.])
1613 (The GNU allocators don't work with this system configuration.)"
1617 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1618 VMLIMIT_OBJ=vm-limit.o
1620 AC_SUBST(GMALLOC_OBJ)
1621 AC_SUBST(VMLIMIT_OBJ)
1623 if test "$doug_lea_malloc" = "yes" ; then
1624 if test "$GNU_MALLOC" = yes ; then
1626 (Using Doug Lea's new malloc from the GNU C Library.)"
1628 AC_DEFINE(DOUG_LEA_MALLOC, 1,
1629 [Define to 1 if you are using the GNU C Library.])
1631 ## Use mmap directly for allocating larger buffers.
1632 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
1633 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
1634 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
1636 gnu*) REL_ALLOC=no ;;
1640 if test x"${REL_ALLOC}" = x; then
1641 REL_ALLOC=${GNU_MALLOC}
1644 use_mmap_for_buffers=no
1646 cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
1650 if test $use_mmap_for_buffers = yes; then
1651 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
1655 LIBS="$LIBS_SYSTEM $LIBS"
1657 dnl If found, this defines HAVE_LIBDNET, which m/pmax.h checks,
1658 dnl and also adds -ldnet to LIBS, which Autoconf uses for checks.
1659 AC_CHECK_LIB(dnet, dnet_ntoa)
1660 dnl This causes -lresolv to get used in subsequent tests,
1661 dnl which causes failures on some systems such as HPUX 9.
1662 dnl AC_CHECK_LIB(resolv, gethostbyname)
1664 dnl FIXME replace main with a function we actually want from this library.
1665 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
1667 dnl Check if pthreads is available.
1669 AC_CHECK_HEADERS_ONCE(pthread.h)
1670 if test "$ac_cv_header_pthread_h"; then
1671 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
1672 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
1673 dnl testing for pthread_self if Emacs uses gmalloc.c.
1674 if test "$GMALLOC_OBJ" = gmalloc.o; then
1675 emacs_pthread_function=pthread_atfork
1677 emacs_pthread_function=pthread_self
1679 AC_CHECK_LIB(pthread, $emacs_pthread_function, HAVE_PTHREAD=yes)
1681 if test "$HAVE_PTHREAD" = yes; then
1682 case "${canonical}" in
1684 *) LIB_PTHREAD="-lpthread"
1685 LIBS="$LIB_PTHREAD $LIBS" ;;
1687 AC_DEFINE(HAVE_PTHREAD, 1, [Define to 1 if you have pthread (-lpthread).])
1689 AC_SUBST([LIB_PTHREAD])
1691 AC_CHECK_LIB(pthreads, cma_open)
1693 ## Note: when using cpp in s/aix4.2.h, this definition depended on
1694 ## HAVE_LIBPTHREADS. That was not defined earlier in configure when
1695 ## the system file was sourced. Hence the value of LIBS_SYSTEM
1696 ## added to LIBS in configure would never contain the pthreads part,
1697 ## but the value used in Makefiles might. FIXME?
1699 ## -lpthreads seems to be necessary for Xlib in X11R6, and should
1700 ## be harmless on older versions of X where it happens to exist.
1701 test "$opsys" = "aix4-2" && \
1702 test $ac_cv_lib_pthreads_cma_open = yes && \
1703 LIBS_SYSTEM="$LIBS_SYSTEM -lpthreads"
1705 dnl Check for need for bigtoc support on IBM AIX
1709 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1711 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1712 *) gdb_cv_bigtoc=-bbigtoc ;;
1715 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1716 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
1721 # Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
1722 # used for the tests that follow. We set them back to REAL_CFLAGS and
1723 # REAL_CPPFLAGS later on.
1725 REAL_CFLAGS="$CFLAGS"
1726 REAL_CPPFLAGS="$CPPFLAGS"
1728 if test "${HAVE_X11}" = "yes"; then
1729 DEFS="$C_SWITCH_X_SITE $DEFS"
1730 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
1732 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
1733 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
1735 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
1736 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
1737 # but it's more convenient here to set LD_RUN_PATH since this
1738 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
1739 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
1740 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
1744 if test "${opsys}" = "gnu-linux"; then
1745 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
1746 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1747 [[XOpenDisplay ("foo");]])],
1748 [xgnu_linux_first_failure=no],
1749 [xgnu_linux_first_failure=yes])
1750 if test "${xgnu_linux_first_failure}" = "yes"; then
1751 OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
1752 OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
1753 OLD_CPPFLAGS="$CPPFLAGS"
1755 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
1756 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
1757 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
1758 LIBS="$LIBS -b i486-linuxaout"
1759 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1760 [[XOpenDisplay ("foo");]])],
1761 [xgnu_linux_second_failure=no],
1762 [xgnu_linux_second_failure=yes])
1763 if test "${xgnu_linux_second_failure}" = "yes"; then
1764 # If we get the same failure with -b, there is no use adding -b.
1765 # So take it out. This plays safe.
1766 LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
1767 C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
1768 CPPFLAGS="$OLD_CPPFLAGS"
1779 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
1780 # header files included from there.
1781 AC_MSG_CHECKING(for Xkb)
1782 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
1783 #include <X11/XKBlib.h>]],
1784 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
1785 emacs_xkb=yes, emacs_xkb=no)
1786 AC_MSG_RESULT($emacs_xkb)
1787 if test $emacs_xkb = yes; then
1788 AC_DEFINE(HAVE_XKBGETKEYBOARD, 1, [Define to 1 if you have the XkbGetKeyboard function.])
1791 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
1792 XScreenNumberOfScreen)
1795 if test "${window_system}" = "x11"; then
1796 AC_MSG_CHECKING(X11 version 6)
1797 AC_CACHE_VAL(emacs_cv_x11_version_6,
1798 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
1799 [[#if XlibSpecificationRelease < 6
1802 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
1803 if test $emacs_cv_x11_version_6 = yes; then
1804 AC_MSG_RESULT(6 or newer)
1805 AC_DEFINE(HAVE_X11R6, 1,
1806 [Define to 1 if you have the X11R6 or newer version of Xlib.])
1807 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
1808 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
1812 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
1813 [Define if you have usable X11R6-style XIM support.])
1817 AC_MSG_RESULT(before 6)
1822 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
1824 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes"; then
1825 if test "${with_rsvg}" != "no"; then
1826 RSVG_REQUIRED=2.11.0
1827 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
1829 PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, HAVE_RSVG=yes, :)
1830 AC_SUBST(RSVG_CFLAGS)
1833 if test $HAVE_RSVG = yes; then
1834 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
1835 CFLAGS="$CFLAGS $RSVG_CFLAGS"
1836 LIBS="$RSVG_LIBS $LIBS"
1842 if test "${HAVE_X11}" = "yes"; then
1843 if test "${with_imagemagick}" != "no"; then
1844 ## 6.2.8 is the earliest version known to work, but earlier versions
1845 ## might work - let us know if you find one.
1846 ## 6.0.7 does not work. See bug#7955.
1847 IMAGEMAGICK_MODULE="Wand >= 6.2.8"
1848 PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
1849 AC_SUBST(IMAGEMAGICK_CFLAGS)
1850 AC_SUBST(IMAGEMAGICK_LIBS)
1852 if test $HAVE_IMAGEMAGICK = yes; then
1853 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
1854 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
1855 LIBS="$IMAGEMAGICK_LIBS $LIBS"
1856 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
1864 if test "${with_gtk3}" = "yes"; then
1867 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1869 dnl Checks for libraries.
1870 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1871 if test "$pkg_check_gtk" = "no" && test "$USE_X_TOOLKIT" != "maybe"; then
1872 AC_MSG_ERROR($GTK_PKG_ERRORS)
1874 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
1875 GTK_OBJ=emacsgtkfixed.o
1878 if test "$pkg_check_gtk" != "yes"; then
1880 if test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
1883 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1885 dnl Checks for libraries.
1886 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1887 if test "$pkg_check_gtk" = "no" && test "$USE_X_TOOLKIT" != "maybe"; then
1888 AC_MSG_ERROR($GTK_PKG_ERRORS)
1893 if test x"$pkg_check_gtk" = xyes; then
1895 AC_SUBST(GTK_CFLAGS)
1897 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
1898 CFLAGS="$CFLAGS $GTK_CFLAGS"
1899 LIBS="$GTK_LIBS $LIBS"
1900 dnl Try to compile a simple GTK program.
1902 AC_CHECK_FUNCS(gtk_main, GTK_COMPILES=yes)
1903 if test "${GTK_COMPILES}" != "yes"; then
1904 if test "$USE_X_TOOLKIT" != "maybe"; then
1905 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
1909 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
1910 GTK_OBJ="gtkutil.o $GTK_OBJ"
1912 if $PKG_CONFIG --atleast-version=2.10 gtk+-2.0; then
1915 AC_MSG_WARN([[Your version of Gtk+ will have problems with
1916 closing open displays. This is no problem if you just use
1917 one display, but if you use more than one and close one of them
1927 if test "${HAVE_GTK}" = "yes"; then
1929 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
1930 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
1931 if test "$with_toolkit_scroll_bars" != no; then
1932 with_toolkit_scroll_bars=yes
1935 dnl Check if we have the old file selection dialog declared and
1936 dnl in the link library. In 2.x it may be in the library,
1937 dnl but not declared if deprecated featured has been selected out.
1938 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
1939 HAVE_GTK_FILE_SELECTION=no
1940 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
1941 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
1942 #include <gtk/gtk.h>])
1943 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
1944 AC_CHECK_FUNCS(gtk_file_selection_new)
1948 dnl Check for functions introduced in 2.14 and later.
1949 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
1950 gtk_dialog_get_action_area gtk_widget_get_sensitive \
1951 gtk_widget_get_mapped gtk_adjustment_get_page_size \
1952 gtk_orientable_set_orientation \
1953 gtk_window_set_has_resize_grip)
1956 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
1957 dnl other platforms.
1960 if test "${with_dbus}" = "yes"; then
1961 PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
1962 if test "$HAVE_DBUS" = yes; then
1963 LIBS="$LIBS $DBUS_LIBS"
1964 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
1965 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
1966 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
1968 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
1969 dbus_type_is_valid \
1970 dbus_validate_bus_name \
1971 dbus_validate_path \
1972 dbus_validate_interface \
1973 dbus_validate_member)
1979 dnl GSettings has been tested under GNU/Linux only.
1981 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
1982 PKG_CHECK_MODULES(GSETTINGS, gio-2.0 >= 2.26, HAVE_GSETTINGS=yes, HAVE_GSETTINGS=no)
1983 if test "$HAVE_GSETTINGS" = "yes"; then
1984 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
1985 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
1986 SETTINGS_LIBS="$GSETTINGS_LIBS"
1990 dnl GConf has been tested under GNU/Linux only.
1991 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
1993 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
1994 PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
1995 if test "$HAVE_GCONF" = yes; then
1996 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
1997 dnl Newer GConf doesn't link with g_objects, so this is not defined.
1998 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
1999 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2003 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2004 SAVE_CFLAGS="$CFLAGS"
2006 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2007 LIBS="$SETTINGS_LIBS $LIBS"
2008 AC_CHECK_FUNCS([g_type_init])
2009 CFLAGS="$SAVE_CFLAGS"
2012 AC_SUBST(SETTINGS_CFLAGS)
2013 AC_SUBST(SETTINGS_LIBS)
2016 dnl SELinux is available for GNU/Linux only.
2019 if test "${with_selinux}" = "yes"; then
2020 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2021 if test "$HAVE_LIBSELINUX" = yes; then
2022 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2023 LIBSELINUX_LIBS=-lselinux
2026 AC_SUBST(LIBSELINUX_LIBS)
2029 HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=no
2030 if test "${with_gnutls}" = "yes" ; then
2031 PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6], HAVE_GNUTLS=yes, HAVE_GNUTLS=no)
2032 if test "${HAVE_GNUTLS}" = "yes"; then
2033 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2036 CFLAGS="$CFLAGS $LIBGNUTLS_CFLAGS"
2037 LIBS="$LIBGNUTLS_LIBS $LIBS"
2038 AC_CHECK_FUNCS(gnutls_certificate_set_verify_function, HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=yes)
2040 if test "${HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY}" = "yes"; then
2041 AC_DEFINE(HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY, 1, [Define if using GnuTLS certificate verification callbacks.])
2045 AC_SUBST(LIBGNUTLS_LIBS)
2046 AC_SUBST(LIBGNUTLS_CFLAGS)
2048 dnl Do not put whitespace before the #include statements below.
2049 dnl Older compilers (eg sunos4 cc) choke on it.
2052 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2053 if test "$with_xaw3d" != no; then
2054 AC_MSG_CHECKING(for xaw3d)
2055 AC_CACHE_VAL(emacs_cv_xaw3d,
2056 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2057 #include <X11/Intrinsic.h>
2058 #include <X11/Xaw3d/Simple.h>]],
2060 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2061 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2062 emacs_cv_xaw3d=no)])
2066 if test $emacs_cv_xaw3d = yes; then
2067 AC_MSG_RESULT([yes; using Lucid toolkit])
2071 AC_DEFINE(HAVE_XAW3D, 1,
2072 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2075 AC_MSG_CHECKING(for libXaw)
2076 AC_CACHE_VAL(emacs_cv_xaw,
2077 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2078 #include <X11/Intrinsic.h>
2079 #include <X11/Xaw/Simple.h>]],
2083 if test $emacs_cv_xaw = yes; then
2084 AC_MSG_RESULT([yes; using Lucid toolkit])
2087 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2088 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2090 AC_MSG_ERROR([No X toolkit could be found.
2091 If you are sure you want Emacs compiled without an X toolkit, pass
2093 to configure. Otherwise, install the development libraries for the toolkit
2094 that you want to use (e.g. Gtk+) and re-run configure.])
2099 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2102 if test "${USE_X_TOOLKIT}" != "none"; then
2103 AC_MSG_CHECKING(X11 toolkit version)
2104 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2105 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2106 [[#if XtSpecificationRelease < 6
2109 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2110 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2111 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2112 AC_MSG_RESULT(6 or newer)
2113 AC_DEFINE(HAVE_X11XTR6, 1,
2114 [Define to 1 if you have the X11R6 or newer version of Xt.])
2115 LIBXTR6="-lSM -lICE"
2117 ## Use libw.a along with X11R6 Xt.
2118 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2121 AC_MSG_RESULT(before 6)
2124 dnl If using toolkit, check whether libXmu.a exists.
2125 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2127 if test x$HAVE_X11XTR6 = xyes; then
2128 LIBS="-lXt -lSM -lICE $LIBS"
2132 AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
2133 test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
2134 dnl ac_cv_lib_Xmu_XmuConvertStandardSelection is also referenced below.
2138 dnl FIXME the logic here seems weird, but this is what cpp was doing.
2139 dnl Why not just test for libxmu in the normal way?
2142 ## These systems don't supply Xmu.
2144 test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
2149 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
2150 if test "${HAVE_X11}" = "yes"; then
2151 if test "${USE_X_TOOLKIT}" != "none"; then
2152 AC_CHECK_LIB(Xext, XShapeQueryExtension)
2157 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2158 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2159 if test -d /usr/include/openmotif; then
2160 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2161 emacs_cv_openmotif=yes
2162 case "$canonical" in
2163 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2164 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2167 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2170 emacs_cv_openmotif=no
2172 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2173 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2174 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2177 Motif version prior to 2.1.
2179 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2180 if test $emacs_cv_motif_version_2_1 = yes; then
2181 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2182 if test x$emacs_cv_openmotif = xyes; then
2183 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2186 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2187 # We put this in CFLAGS temporarily to precede other -I options
2188 # that might be in CFLAGS temporarily.
2189 # We put this in CPPFLAGS where it precedes the other -I options.
2190 OLD_CPPFLAGS=$CPPFLAGS
2192 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2193 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2194 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2196 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2197 if test $emacs_cv_lesstif = yes; then
2198 # Make sure this -I option remains in CPPFLAGS after it is set
2199 # back to REAL_CPPFLAGS.
2200 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2201 # have those other -I options anyway. Ultimately, having this
2202 # directory ultimately in CPPFLAGS will be enough.
2203 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2204 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2207 CPPFLAGS=$OLD_CPPFLAGS
2210 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2211 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2214 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2215 dnl using Motif or Xaw3d is available, and unless
2216 dnl --with-toolkit-scroll-bars=no was specified.
2218 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2219 [Define to 1 if we should use toolkit scroll bars.])dnl
2220 USE_TOOLKIT_SCROLL_BARS=no
2221 if test "${with_toolkit_scroll_bars}" != "no"; then
2222 if test "${USE_X_TOOLKIT}" != "none"; then
2223 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2224 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2226 USE_TOOLKIT_SCROLL_BARS=yes
2227 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2228 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2229 USE_TOOLKIT_SCROLL_BARS=yes
2231 elif test "${HAVE_GTK}" = "yes"; then
2232 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2233 USE_TOOLKIT_SCROLL_BARS=yes
2234 elif test "${HAVE_NS}" = "yes"; then
2235 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2236 USE_TOOLKIT_SCROLL_BARS=yes
2240 dnl See if XIM is available.
2241 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2242 #include <X11/Xlib.h>
2243 #include <X11/Xresource.h>]],
2244 [[XIMProc callback;]])],
2246 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2249 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2251 if test "${with_xim}" != "no"; then
2252 AC_DEFINE(USE_XIM, 1,
2253 [Define to 1 if we should use XIM, if it is available.])
2257 if test "${HAVE_XIM}" != "no"; then
2259 if test "$GCC" = yes; then
2260 CFLAGS="$CFLAGS --pedantic-errors"
2262 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2263 #include <X11/Xlib.h>
2264 #include <X11/Xresource.h>]],
2270 XPointer *client_data;
2272 /* If we're not using GCC, it's probably not XFree86, and this is
2273 probably right, but we can't use something like --pedantic-errors. */
2274 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2275 char*, XIMProc, XPointer*);
2277 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2279 [emacs_cv_arg6_star=yes])
2280 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2281 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2282 either XPointer or XPointer*.])dnl
2283 if test "$emacs_cv_arg6_star" = yes; then
2284 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2286 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2291 ### Start of font-backend (under any platform) section.
2292 # (nothing here yet -- this is a placeholder)
2293 ### End of font-backend (under any platform) section.
2295 ### Start of font-backend (under X11) section.
2296 if test "${HAVE_X11}" = "yes"; then
2297 PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
2299 ## Use -lXft if available, unless `--with-xft=no'.
2301 if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2304 if test "x${with_xft}" != "xno"; then
2306 PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
2307 ## Because xftfont.c uses XRenderQueryExtension, we also
2308 ## need to link to -lXrender.
2310 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2311 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2312 OLD_CPPFLAGS="$CPPFLAGS"
2313 OLD_CFLAGS="$CFLAGS"
2315 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2316 CFLAGS="$CFLAGS $XFT_CFLAGS"
2317 XFT_LIBS="-lXrender $XFT_LIBS"
2318 LIBS="$XFT_LIBS $LIBS"
2319 AC_CHECK_HEADER(X11/Xft/Xft.h,
2320 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS))
2322 if test "${HAVE_XFT}" = "yes"; then
2323 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2325 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2327 CPPFLAGS="$OLD_CPPFLAGS"
2328 CFLAGS="$OLD_CFLAGS"
2330 fi # "${HAVE_XFT}" = "yes"
2331 fi # "$HAVE_XFT" != no
2332 fi # "x${with_xft}" != "xno"
2334 ## We used to allow building with FreeType and without Xft.
2335 ## However, the ftx font backend driver is not in good shape.
2336 if test "$HAVE_XFT" != "yes"; then
2337 dnl For the "Does Emacs use" message at the end.
2341 dnl Strict linkers fail with
2342 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2343 dnl if -lfreetype is not specified.
2344 dnl The following is needed to set FREETYPE_LIBS.
2345 PKG_CHECK_MODULES(FREETYPE, freetype2, HAVE_FREETYPE=yes,
2348 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2352 if test "${HAVE_FREETYPE}" = "yes"; then
2353 AC_DEFINE(HAVE_FREETYPE, 1,
2354 [Define to 1 if using the freetype and fontconfig libraries.])
2355 if test "${with_libotf}" != "no"; then
2356 PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
2358 if test "$HAVE_LIBOTF" = "yes"; then
2359 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2360 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2361 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2362 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2363 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2364 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2365 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2369 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2370 dnl Does the new font backend require it, or can it work without it?
2374 if test "${HAVE_LIBOTF}" = yes; then
2375 if test "${with_m17n_flt}" != "no"; then
2376 PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
2377 if test "$HAVE_M17N_FLT" = "yes"; then
2378 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2389 ### End of font-backend (under X11) section.
2391 AC_SUBST(FREETYPE_CFLAGS)
2392 AC_SUBST(FREETYPE_LIBS)
2393 AC_SUBST(FONTCONFIG_CFLAGS)
2394 AC_SUBST(FONTCONFIG_LIBS)
2395 AC_SUBST(LIBOTF_CFLAGS)
2396 AC_SUBST(LIBOTF_LIBS)
2397 AC_SUBST(M17N_FLT_CFLAGS)
2398 AC_SUBST(M17N_FLT_LIBS)
2400 ### Use -lXpm if available, unless `--with-xpm=no'.
2403 if test "${HAVE_X11}" = "yes"; then
2404 if test "${with_xpm}" != "no"; then
2405 AC_CHECK_HEADER(X11/xpm.h,
2406 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2407 if test "${HAVE_XPM}" = "yes"; then
2408 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2409 AC_EGREP_CPP(no_return_alloc_pixels,
2410 [#include "X11/xpm.h"
2411 #ifndef XpmReturnAllocPixels
2412 no_return_alloc_pixels
2414 ], HAVE_XPM=no, HAVE_XPM=yes)
2416 if test "${HAVE_XPM}" = "yes"; then
2424 if test "${HAVE_XPM}" = "yes"; then
2425 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2431 ### Use -ljpeg if available, unless `--with-jpeg=no'.
2434 if test "${HAVE_X11}" = "yes"; then
2435 if test "${with_jpeg}" != "no"; then
2436 dnl Checking for jpeglib.h can lose because of a redefinition of
2438 AC_CHECK_HEADER(jerror.h,
2439 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
2442 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2443 if test "${HAVE_JPEG}" = "yes"; then
2444 AC_DEFINE(HAVE_JPEG)
2445 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2446 [#include <jpeglib.h>
2447 version=JPEG_LIB_VERSION
2449 [AC_DEFINE(HAVE_JPEG)],
2450 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2453 if test "${HAVE_JPEG}" = "yes"; then
2459 ### Use -lpng if available, unless `--with-png=no'.
2462 if test "${HAVE_X11}" = "yes"; then
2463 if test "${with_png}" != "no"; then
2464 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
2465 # in /usr/include/libpng.
2466 AC_CHECK_HEADERS(png.h libpng/png.h, break)
2467 if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
2468 AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
2472 if test "${HAVE_PNG}" = "yes"; then
2473 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2474 LIBPNG="-lpng -lz -lm"
2476 AC_CHECK_DECL(png_longjmp,
2478 [AC_DEFINE(PNG_DEPSTRUCT, [],
2479 [Define to empty to suppress deprecation warnings when building
2480 with --enable-gcc-warnings and with libpng versions before 1.5,
2481 which lack png_longjmp.])],
2482 [[#ifdef HAVE_LIBPNG_PNG_H
2483 # include <libpng/png.h>
2492 ### Use -ltiff if available, unless `--with-tiff=no'.
2495 if test "${HAVE_X11}" = "yes"; then
2496 if test "${with_tiff}" != "no"; then
2497 AC_CHECK_HEADER(tiffio.h,
2499 # At least one tiff package requires the jpeg library.
2500 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
2501 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
2504 if test "${HAVE_TIFF}" = "yes"; then
2505 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
2506 dnl FIXME -lz -lm, as per libpng?
2512 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
2515 if test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no"; then
2516 AC_CHECK_HEADER(gif_lib.h,
2517 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
2518 # Earlier versions can crash Emacs.
2519 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])
2521 if test "$HAVE_GIF" = yes; then
2523 elif test "$HAVE_GIF" = maybe; then
2524 # If gif_lib.h but no libgif, try libungif.
2525 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
2526 test "$HAVE_GIF" = yes && LIBGIF=-lungif
2529 if test "${HAVE_GIF}" = "yes"; then
2530 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
2535 dnl Check for required libraries.
2536 if test "${HAVE_X11}" = "yes"; then
2539 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
2540 MISSING="libXpm" && WITH_NO="--with-xpm=no"
2541 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
2542 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
2543 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
2544 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
2545 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
2546 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
2547 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
2548 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
2550 if test "X${MISSING}" != X; then
2551 AC_MSG_ERROR([The following required libraries were not found:
2553 Maybe some development libraries/packages are missing?
2554 If you don't want to link with them give
2556 as options to configure])
2560 ### Use -lgpm if available, unless `--with-gpm=no'.
2563 if test "${with_gpm}" != "no"; then
2564 AC_CHECK_HEADER(gpm.h,
2565 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
2567 if test "${HAVE_GPM}" = "yes"; then
2568 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
2574 dnl Check for malloc/malloc.h on darwin
2575 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
2578 ### Use NeXTstep API to implement GUI.
2579 if test "${HAVE_NS}" = "yes"; then
2580 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
2581 if test "${NS_IMPL_COCOA}" = "yes"; then
2582 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
2584 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
2585 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
2586 # See also .m.o rule in Makefile.in */
2587 # FIXME: are all these flags really needed? Document here why. */
2588 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
2589 ## Extra CFLAGS applied to src/*.m files.
2590 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"
2592 # We also have mouse menus.
2598 ### Use session management (-lSM -lICE) if available
2601 if test "${HAVE_X11}" = "yes"; then
2602 AC_CHECK_HEADER(X11/SM/SMlib.h,
2603 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
2605 if test "${HAVE_X_SM}" = "yes"; then
2606 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
2610 *) LIBS="$LIBXSM $LIBS" ;;
2616 ### Use libxml (-lxml2) if available
2618 if test "${with_xml2}" != "no"; then
2619 ### I'm not sure what the version number should be, so I just guessed.
2620 PKG_CHECK_MODULES(LIBXML2, libxml-2.0 > 2.6.17, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2621 if test "${HAVE_LIBXML2}" = "yes"; then
2622 LIBS="$LIBXML2_LIBS $LIBS"
2623 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2624 if test "${HAVE_LIBXML2}" = "yes"; then
2625 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
2632 AC_SUBST(LIBXML2_LIBS)
2633 AC_SUBST(LIBXML2_CFLAGS)
2635 # If netdb.h doesn't declare h_errno, we must declare it by hand.
2636 AC_CACHE_CHECK(whether netdb declares h_errno,
2637 emacs_cv_netdb_declares_h_errno,
2638 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
2639 [[return h_errno;]])],
2640 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
2641 if test $emacs_cv_netdb_declares_h_errno = yes; then
2642 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
2645 # fmod, logb, and frexp are found in -lm on most systems.
2646 # On HPUX 9.01, -lm does not contain logb, so check for sqrt.
2647 AC_CHECK_LIB(m, sqrt)
2649 # Check for mail-locking functions in a "mail" library. Probably this should
2650 # have the same check as for liblockfile below.
2651 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
2652 if test $have_mail = yes; then
2654 LIBS="$LIBS_MAIL $LIBS"
2655 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
2659 dnl Debian, at least:
2660 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
2661 if test $have_lockfile = yes; then
2662 LIBS_MAIL=-llockfile
2663 LIBS="$LIBS_MAIL $LIBS"
2664 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
2666 # If we have the shared liblockfile, assume we must use it for mail
2667 # locking (e.g. Debian). If we couldn't link against liblockfile
2668 # (no liblockfile.a installed), ensure that we don't need to.
2669 dnl This works for files generally, not just executables.
2670 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
2671 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
2672 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
2673 if test $ac_cv_prog_liblockfile = yes; then
2674 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
2675 This probably means that movemail could lose mail.
2676 There may be a `development' package to install containing liblockfile.])
2679 AC_CHECK_HEADERS_ONCE(maillock.h)
2682 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
2683 ## interlock access to the mail spool. The alternative is a lock file named
2684 ## /usr/spool/mail/$USER.lock.
2687 aix4-2) mail_lock="lockf" ;;
2689 gnu|freebsd|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
2691 ## On GNU/Linux systems, both methods are used by various mail programs.
2692 ## I assume most people are using newer mailers that have heard of flock.
2693 ## Change this if you need to.
2694 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
2695 ## configure gets the right answers, and that means *NOT* using flock.
2696 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
2697 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
2698 ## Debian maintainer hasn't provided a clean fix for Emacs.
2699 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
2700 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
2701 ## correct logic. -- fx
2702 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
2703 ## liblockfile is a Free Software replacement for libmail, used on
2704 ## Debian systems and elsewhere. -rfr.
2707 if test $have_mail = yes || test $have_lockfile = yes; then
2708 test $ac_cv_header_maillock_h = yes && mail_lock=no
2714 case "$mail_lock" in
2715 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
2717 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
2719 *) BLESSMAIL_TARGET="need-blessmail" ;;
2721 AC_SUBST(BLESSMAIL_TARGET)
2724 AC_CHECK_FUNCS(gethostname \
2725 closedir getrusage get_current_dir_name \
2726 lrand48 logb frexp fmod cbrt setsid \
2727 fpathconf select euidaccess getpagesize setlocale \
2728 utimes getrlimit setrlimit setpgid getcwd shutdown getaddrinfo \
2729 __fpending strsignal setitimer \
2730 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
2731 gai_strerror mkstemp getline getdelim fsync sync \
2732 difftime posix_memalign \
2733 getpwent endpwent getgrent endgrent \
2735 cfmakeraw cfsetspeed copysign __executable_start)
2737 dnl getwd appears to be buggy on SVR4.2, so we don't use it.
2738 if test $opsys = unixware; then
2739 dnl In case some other test ends up checking for getwd.
2740 AC_DEFINE(BROKEN_GETWD, 1, [Define if getwd should not be used.])
2742 AC_CHECK_FUNCS(getwd)
2745 ## Eric Backus <ericb@lsid.hp.com> says, HP-UX 9.x on HP 700 machines
2746 ## has a broken `rint' in some library versions including math library
2747 ## version number A.09.05.
2748 ## You can fix the math library by installing patch number PHSS_4630.
2749 ## But we can fix it more reliably for Emacs by just not using rint.
2750 ## We also skip HAVE_RANDOM - see comments in src/conf_post.h.
2753 *) AC_CHECK_FUNCS(random rint) ;;
2756 dnl Cannot use AC_CHECK_FUNCS
2757 AC_CACHE_CHECK([for __builtin_unwind_init],
2758 emacs_cv_func___builtin_unwind_init,
2759 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
2760 emacs_cv_func___builtin_unwind_init=yes,
2761 emacs_cv_func___builtin_unwind_init=no)])
2762 if test $emacs_cv_func___builtin_unwind_init = yes; then
2763 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
2764 [Define to 1 if you have the `__builtin_unwind_init' function.])
2767 AC_CHECK_HEADERS_ONCE(sys/un.h)
2774 AC_CHECK_FUNCS(grantpt)
2776 # PTY-related GNU extensions.
2777 AC_CHECK_FUNCS(getpt posix_openpt)
2779 # Check this now, so that we will NOT find the above functions in ncurses.
2780 # That is because we have not set up to link ncurses in lib-src.
2781 # It's better to believe a function is not available
2782 # than to expect to find it in ncurses.
2783 # Also we need tputs and friends to be able to build at all.
2784 AC_MSG_CHECKING([for library containing tputs])
2785 # Run a test program that contains a call to tputs, a call that is
2786 # never executed. This tests whether a pre-'main' dynamic linker
2787 # works with the library. It's too much trouble to actually call
2788 # tputs in the test program, due to portability hassles. When
2789 # cross-compiling, assume the test program will run if it links.
2790 AC_DEFUN([tputs_link_source], [
2792 [[extern void tputs (const char *, int, int (*)(int));
2793 int main (int argc, char **argv)
2796 tputs (argv[0], 0, 0);
2800 # Maybe curses should be tried earlier?
2801 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
2802 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
2804 if test -z "$tputs_library"; then
2808 LIBS_TERMCAP=-l$tputs_library
2810 LIBS="$LIBS_TERMCAP $LIBS"
2812 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
2813 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
2815 if test "X$msg" != Xno; then
2819 AC_MSG_RESULT([$msg])
2820 if test "X$msg" = Xno; then
2821 AC_MSG_ERROR([The required function `tputs' was not found in any library.
2822 The following libraries were tried (in order):
2823 libtinfo, libncurses, libterminfo, libtermcap, libcurses
2824 Please try installing whichever of these libraries is most appropriate
2825 for your system, together with its header files.
2826 For example, a libncurses-dev(el) or similar package.])
2829 ## Use termcap instead of terminfo?
2830 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
2832 ## FIXME? In the cases below where we unconditionally set
2833 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
2834 ## if that was found above to have tputs.
2835 ## Should we use the gnu* logic everywhere?
2837 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
2838 ## The ncurses library has been moved out of the System framework in
2839 ## Mac OS X 10.2. So if configure detects it, set the command-line
2840 ## option to use it.
2841 darwin) LIBS_TERMCAP="-lncurses" ;;
2843 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
2846 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
2847 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
2848 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
2849 [[#if __FreeBSD_version < 400000
2852 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
2854 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
2856 if test $emacs_cv_freebsd_terminfo = yes; then
2857 LIBS_TERMCAP="-lncurses"
2860 LIBS_TERMCAP="-ltermcap"
2865 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
2867 LIBS_TERMCAP="-ltermcap"
2871 openbsd) LIBS_TERMCAP="-lncurses" ;;
2873 ## hpux: Make sure we get select from libc rather than from libcurses
2874 ## because libcurses on HPUX 10.10 has a broken version of select.
2875 ## We used to use -lc -lcurses, but this may be cleaner.
2876 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
2877 # set that way, now it uses the default). Isn't this a contradiction?
2878 hpux*) LIBS_TERMCAP="-ltermcap" ;;
2882 TERMCAP_OBJ=tparam.o
2883 if test $TERMINFO = yes; then
2884 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
2885 TERMCAP_OBJ=terminfo.o
2887 AC_SUBST(LIBS_TERMCAP)
2888 AC_SUBST(TERMCAP_OBJ)
2891 # Do we have res_init, for detecting changes in /etc/resolv.conf?
2892 # On Darwin, res_init appears not to be useful: see bug#562 and
2893 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
2896 if test $opsys != darwin; then
2898 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
2899 #include <arpa/nameser.h>
2900 #include <resolv.h>]],
2901 [[return res_init();]])],
2902 have_res_init=yes, have_res_init=no)
2903 if test "$have_res_init" = no; then
2905 LIBS="$LIBS -lresolv"
2906 AC_MSG_CHECKING(for res_init with -lresolv)
2907 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
2908 #include <arpa/nameser.h>
2909 #include <resolv.h>]],
2910 [[return res_init();]])],
2911 have_res_init=yes, have_res_init=no)
2912 AC_MSG_RESULT($have_res_init)
2913 if test "$have_res_init" = yes ; then
2919 if test "$have_res_init" = yes; then
2920 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
2924 # Do we need the Hesiod library to provide the support routines?
2925 dnl FIXME? Should we be skipping this on Darwin too?
2927 if test "$with_hesiod" != no ; then
2928 # Don't set $LIBS here -- see comments above. FIXME which comments?
2929 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
2930 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
2931 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
2932 if test "$resolv" = yes ; then
2937 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
2938 hesiod=yes, :, $RESOLVLIB)])
2940 if test x"$hesiod" = xyes; then
2941 AC_DEFINE(HAVE_LIBHESIOD, 1,
2942 [Define to 1 if you have the hesiod library (-lhesiod).])
2948 # Do we need libresolv (due to res_init or Hesiod)?
2949 if test "$resolv" = yes && test $opsys != darwin; then
2950 AC_DEFINE(HAVE_LIBRESOLV, 1,
2951 [Define to 1 if you have the resolv library (-lresolv).])
2958 # These tell us which Kerberos-related libraries to use.
2965 if test "${with_kerberos}" != no; then
2966 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
2967 if test $have_com_err = yes; then
2968 COM_ERRLIB=-lcom_err
2969 LIBS="$COM_ERRLIB $LIBS"
2970 AC_DEFINE(HAVE_LIBCOM_ERR, 1, [Define to 1 if you have the `com_err' library (-lcom_err).])
2972 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
2973 if test $have_crypto = yes; then
2975 LIBS="$CRYPTOLIB $LIBS"
2976 AC_DEFINE(HAVE_LIBCRYPTO, 1, [Define to 1 if you have the `crypto' library (-lcrypto).])
2978 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
2979 if test $have_k5crypto = yes; then
2980 CRYPTOLIB=-lk5crypto
2981 LIBS="$CRYPTOLIB $LIBS"
2982 AC_DEFINE(HAVE_LIBK5CRYPTO, 1, [Define to 1 if you have the `k5crypto' library (-lk5crypto).])
2984 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
2985 if test $have_krb5=yes; then
2987 LIBS="$KRB5LIB $LIBS"
2988 AC_DEFINE(HAVE_LIBKRB5, 1, [Define to 1 if you have the `krb5' library (-lkrb5).])
2990 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
2991 if test "${with_kerberos5}" = no; then
2992 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
2993 if test $have_des425 = yes; then
2995 LIBS="$DESLIB $LIBS"
2996 AC_DEFINE(HAVE_LIBDES425, 1, [Define to 1 if you have the `des425' library (-ldes425).])
2998 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
2999 if test $have_des = yes; then
3001 LIBS="$DESLIB $LIBS"
3002 AC_DEFINE(HAVE_LIBDES, 1, [Define to 1 if you have the `des' library (-ldes).])
3005 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3006 if test $have_krb4 = yes; then
3008 LIBS="$KRB4LIB $LIBS"
3009 AC_DEFINE(HAVE_LIBKRB4, 1, [Define to 1 if you have the `krb4' library (-lkrb4).])
3011 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3012 if test $have_krb = yes; then
3014 LIBS="$KRB4LIB $LIBS"
3015 AC_DEFINE(HAVE_LIBKRB, 1, [Define to 1 if you have the `krb' library (-lkrb).])
3020 if test "${with_kerberos5}" != no; then
3021 AC_CHECK_HEADERS(krb5.h,
3022 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3023 [#include <krb5.h>])])
3025 AC_CHECK_HEADERS(des.h,,
3026 [AC_CHECK_HEADERS(kerberosIV/des.h,,
3027 [AC_CHECK_HEADERS(kerberos/des.h)])])
3028 AC_CHECK_HEADERS(krb.h,,
3029 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3030 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3032 AC_CHECK_HEADERS(com_err.h)
3035 AC_SUBST(COM_ERRLIB)
3041 AC_CHECK_FUNCS_ONCE(tzset)
3042 AC_MSG_CHECKING(whether localtime caches TZ)
3043 AC_CACHE_VAL(emacs_cv_localtime_cache,
3044 [if test x$ac_cv_func_tzset = xyes; then
3045 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3046 char TZ_GMT0[] = "TZ=GMT0";
3047 char TZ_PST8[] = "TZ=PST8";
3050 time_t now = time ((time_t *) 0);
3051 int hour_GMT0, hour_unset;
3052 if (putenv (TZ_GMT0) != 0)
3054 hour_GMT0 = localtime (&now)->tm_hour;
3056 hour_unset = localtime (&now)->tm_hour;
3057 if (putenv (TZ_PST8) != 0)
3059 if (localtime (&now)->tm_hour == hour_GMT0)
3062 if (localtime (&now)->tm_hour != hour_unset)
3065 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3066 [# If we have tzset, assume the worst when cross-compiling.
3067 emacs_cv_localtime_cache=yes])
3069 # If we lack tzset, report that localtime does not cache TZ,
3070 # since we can't invalidate the cache if we don't have tzset.
3071 emacs_cv_localtime_cache=no
3073 AC_MSG_RESULT($emacs_cv_localtime_cache)
3074 if test $emacs_cv_localtime_cache = yes; then
3075 AC_DEFINE(LOCALTIME_CACHE, 1,
3076 [Define to 1 if localtime caches TZ.])
3080 AC_CHECK_FUNC(socket, , ok_so_far=no)
3081 if test $ok_so_far = yes; then
3082 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3084 if test $ok_so_far = yes; then
3085 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3087 if test $ok_so_far = yes; then
3088 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3089 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3090 [Define to 1 if you have inet sockets.])
3093 if test -f /usr/lpp/X11/bin/smt.exp; then
3094 AC_DEFINE(HAVE_AIX_SMT_EXP, 1,
3095 [Define to 1 if the file /usr/lpp/X11/bin/smt.exp exists.])
3098 AC_MSG_CHECKING(whether system supports dynamic ptys)
3099 if test -d /dev/pts && ls -d /dev/ptmx > /dev/null 2>&1 ; then
3101 AC_DEFINE(HAVE_DEV_PTMX, 1, [Define to 1 if dynamic ptys are supported.])
3108 AC_CHECK_FUNCS(snprintf)
3110 dnl Adapted from Haible's version.
3111 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3112 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3113 [[char* cs = nl_langinfo(CODESET);]])],
3114 emacs_cv_langinfo_codeset=yes,
3115 emacs_cv_langinfo_codeset=no)
3117 if test $emacs_cv_langinfo_codeset = yes; then
3118 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3119 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3124 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3125 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3126 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3127 if test "$emacs_cv_c_restrict_arr" = yes; then
3128 AC_DEFINE(__restrict_arr, __restrict,
3129 [Define to compiler's equivalent of C99 restrict keyword in array
3130 declarations. Define as empty for no equivalent.])
3133 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3134 dnl how the tty code is related to POSIX and/or other versions of termios.
3135 dnl The following looks like a useful start.
3137 dnl AC_SYS_POSIX_TERMIOS
3138 dnl if test $ac_cv_sys_posix_termios = yes; then
3139 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3140 dnl and macros for terminal control.])
3141 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3144 dnl Turned on June 1996 supposing nobody will mind it.
3145 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3146 in the full name stands for the login id.])
3148 dnl Every platform that uses configure (ie every non-MS platform)
3149 dnl supports this. There is a create-lockfiles option you can
3150 dnl customize if you do not want the lock files to be written.
3151 dnl So it is not clear that this #define still needs to exist.
3152 AC_DEFINE(CLASH_DETECTION, 1, [Define if you want lock files to be written,
3153 so that Emacs can tell instantly when you try to modify a file that
3154 someone else has modified in his/her Emacs.])
3156 AH_TEMPLATE(FLOAT_CHECK_DOMAIN, [Define if the float library doesn't
3157 handle errors by either setting errno, or signaling SIGFPE/SIGILL.])
3159 AH_TEMPLATE(HAVE_INVERSE_HYPERBOLIC, [Define if you have the functions
3160 acosh, asinh, and atanh.])
3162 dnl Everybody supports this, except MS.
3163 dnl Seems like the kind of thing we should be testing for, though.
3164 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3165 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3167 dnl Everybody supports this, except MS-DOS.
3168 dnl Seems like the kind of thing we should be testing for, though.
3169 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3170 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3171 4.2-compatible sockets.])
3173 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3175 AC_DEFINE(NULL_DEVICE, ["/dev/null"], [Name of the file to open to get
3176 a null file, or a data sink.])
3178 AC_DEFINE(SEPCHAR, [':'], [Character that separates PATH elements.])
3180 dnl Everybody supports this, except MS-DOS.
3181 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3183 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3186 AC_DEFINE(DIRECTORY_SEP, ['/'],
3187 [Character that separates directories in a file name.])
3189 dnl Only used on MS platforms.
3190 AH_TEMPLATE(DEVICE_SEP, [Character that separates a device in a file name.])
3192 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
3193 [Returns true if character is a device separator.])
3195 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
3196 [Returns true if character is a directory separator.])
3198 dnl On MS, this also accepts IS_DEVICE_SEP.
3199 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
3200 [Returns true if character is any form of separator.])
3203 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
3207 dnl Unfortunately without libXmu we cannot support EditRes.
3208 if test x$ac_cv_lib_Xmu_XmuConvertStandardSelection != xyes; then
3209 AC_DEFINE(NO_EDITRES, 1)
3214 dnl Assar Westerlund <assar@sics.se> says this is necessary for
3215 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
3216 AC_DEFINE(NO_EDITRES, 1)
3222 darwin | gnu | hpux* | *bsd )
3223 AC_DEFINE(NO_TERMIO, 1, [Define if termio.h should not be included.])
3226 irix6-5 | sol2* | unixware )
3227 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
3228 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
3229 dnl need the constant to dimension an array. So wire in the appropriate
3231 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
3237 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
3238 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
3239 hpux* | irix6-5 | openbsd | sol2* | unixware )
3240 AC_DEFINE(BROKEN_SIGIO, 1, [Define if SIGIO should not be used.])
3244 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
3245 AC_DEFINE(BROKEN_FIONREAD, 1, [Define if FIONREAD should not be used.])
3246 dnl As we define BROKEN_FIONREAD, SIGIO will be undefined in systty.h.
3247 dnl But, on AIX, SIGAIO, SIGPTY, and SIGPOLL are defined as SIGIO,
3248 dnl which causes compilation error at init_signals in sysdep.c.
3249 dnl So, we define these macros so that syssignal.h detects them
3250 dnl and undefine SIGAIO, SIGPTY and SIGPOLL.
3251 AC_DEFINE(BROKEN_SIGAIO, 1, [Define if SIGAIO should not be used.])
3252 AC_DEFINE(BROKEN_SIGPOLL,1, [Define if SIGPOLL should not be used.])
3253 AC_DEFINE(BROKEN_SIGPTY, 1, [Define if SIGPTY should not be used.])
3255 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
3256 dnl the way this system works, libc functions that return malloced
3257 dnl memory use the libc malloc implementation. Calling xfree or
3258 dnl xrealloc on the results of such functions results in a crash.
3260 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
3261 dnl but that does not currently work on this system.
3263 dnl It is possible to completely override the malloc implementation on
3264 dnl AIX, but that involves putting the malloc functions in a shared
3265 dnl library and setting the MALLOCTYPE environment variable to point to
3266 dnl that shared library.
3268 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
3269 dnl to avoid a crash just use the Emacs implementation for that function.
3271 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
3272 dnl of this file, so that we do not check for get_current_dir_name
3273 dnl on AIX. But that might be fragile if something else ends
3274 dnl up testing for get_current_dir_name as a dependency.
3275 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
3276 get_current_dir_name should not be used.])
3280 dnl Circumvent a bug in FreeBSD. In the following sequence of
3281 dnl writes/reads on a PTY, read(2) returns bogus data:
3283 dnl write(2) 1022 bytes
3284 dnl write(2) 954 bytes, get EAGAIN
3285 dnl read(2) 1024 bytes in process_read_output
3286 dnl read(2) 11 bytes in process_read_output
3288 dnl That is, read(2) returns more bytes than have ever been written
3289 dnl successfully. The 1033 bytes read are the 1022 bytes written
3290 dnl successfully after processing (for example with CRs added if the
3291 dnl terminal is set up that way which it is here). The same bytes will
3292 dnl be seen again in a later read(2), without the CRs.
3293 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
3294 work around an issue when reading from a PTY.])
3297 dnl Define the following so emacs symbols will not conflict with those
3298 dnl in the System framework. Otherwise -prebind will not work.
3300 AC_DEFINE(NO_ABORT, 1, [Do not define abort in emacs.c.])
3306 dnl FIXME Can't we test if this exists (eg /proc/$$)?
3307 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
3312 darwin | freebsd | netbsd | openbsd )
3313 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
3314 close a pty to make it a controlling terminal (it is already a
3315 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
3319 dnl FIXME Surely we can test for this rather than hard-code it.
3321 netbsd | openbsd) sound_device="/dev/audio" ;;
3322 *) sound_device="/dev/dsp" ;;
3326 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
3327 [Name of the default sound device.])
3330 dnl Emacs can read input using SIGIO and buffering characters itself,
3331 dnl or using CBREAK mode and making C-g cause SIGINT.
3332 dnl The choice is controlled by the variable interrupt_input.
3334 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
3336 dnl Emacs uses the presence or absence of the SIGIO and BROKEN_SIGIO macros
3337 dnl to indicate whether or not signal-driven I/O is possible. It uses
3338 dnl INTERRUPT_INPUT to decide whether to use it by default.
3340 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
3341 dnl CBREAK mode has two disadvantages
3342 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
3343 dnl I hear that in system V this problem does not exist.
3344 dnl 2) Control-G causes output to be discarded.
3345 dnl I do not know whether this can be fixed in system V.
3347 dnl Another method of doing input is planned but not implemented.
3348 dnl It would have Emacs fork off a separate process
3349 dnl to read the input and send it to the true Emacs process
3352 darwin | gnu-linux | gnu-kfreebsd )
3353 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
3358 dnl If the system's imake configuration file defines `NeedWidePrototypes'
3359 dnl as `NO', we must define NARROWPROTO manually. Such a define is
3360 dnl generated in the Makefile generated by `xmkmf'. If we don't define
3361 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
3362 dnl taking float or double parameters.
3364 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
3365 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
3366 file defines `NeedWidePrototypes' as `NO'.])
3371 dnl Used in process.c, this must be a loop, even if it only runs once.
3372 dnl (Except on SGI; see below. Take that, clarity and consistency!)
3373 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
3374 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
3375 dnl trying suffixes 0-16.
3376 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
3377 first PTY, if PTYs are supported.])
3378 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
3379 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
3380 end of a PTY, if non-standard.])
3381 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
3382 end of a PTY, if non-standard.])
3386 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
3387 dnl You allocate a pty by opening /dev/ptc to get the master side.
3388 dnl To get the name of the slave side, you just ttyname() the master side.
3389 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
3390 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
3394 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3395 dnl multi-line AC_DEFINEs are hard. :(
3396 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)])
3397 AC_DEFINE(PTY_NAME_SPRINTF, [])
3398 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3401 dnl FIXME? Maybe use same as freebsd - see bug#12040.
3403 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3404 dnl Not used, because PTY_ITERATION is defined.
3405 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3406 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
3407 dnl But we don't have to block SIGCHLD because it is blocked in the
3408 dnl implementation of grantpt.
3409 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (0)])
3410 AC_DEFINE(PTY_NAME_SPRINTF, [])
3411 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3415 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3418 gnu-linux | gnu-kfreebsd | freebsd | netbsd )
3420 if test "x$ac_cv_func_grantpt" = xyes; then
3421 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
3422 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3423 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
3424 dnl to prevent sigchld_handler from intercepting the child's death.
3425 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)); }])
3426 dnl if HAVE_POSIX_OPENPT
3427 if test "x$ac_cv_func_posix_openpt" = xyes; then
3428 AC_DEFINE(PTY_OPEN, [fd = posix_openpt (O_RDWR | O_NOCTTY)])
3429 AC_DEFINE(PTY_NAME_SPRINTF, [])
3431 elif test "x$ac_cv_func_getpt" = xyes; then
3432 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
3433 AC_DEFINE(PTY_NAME_SPRINTF, [])
3435 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
3438 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3443 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3444 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
3445 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
3449 dnl It looks like this cannot be right, because it is not a loop.
3450 dnl However, process.c actually does this:
3456 dnl which presumably makes it OK, since irix == sgi (?).
3457 dnl FIXME it seems like this special treatment is unnecessary?
3458 dnl Why can't irix use a single-trip loop like eg cygwin?
3459 AC_DEFINE(PTY_ITERATION, [])
3460 dnl Not used, because PTY_ITERATION is defined.
3461 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
3462 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); }])
3463 dnl No need to get the pty name at all.
3464 AC_DEFINE(PTY_NAME_SPRINTF, [])
3465 dnl No need to use sprintf to get the tty name--we get that from _getpty.
3466 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3470 dnl Uses sigblock/sigunblock rather than sighold/sigrelse,
3471 dnl which appear to be BSD4.1 specific. It may also be appropriate
3472 dnl for SVR4.x (x<2) but I'm not sure. fnf@cygnus.com
3473 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
3474 dnl from intercepting that death. If any child but grantpt's should die
3475 dnl within, it should be caught after sigrelse(2).
3476 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); }])
3480 dnl Comments are as per sol2*.
3481 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); }])
3488 dnl This change means that we don't loop through allocate_pty too
3489 dnl many times in the (rare) event of a failure.
3490 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
3491 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
3492 dnl Push various streams modules onto a PTY channel. Used in process.c.
3493 AC_DEFINE(SETUP_SLAVE_PTY, [if (ioctl (xforkin, I_PUSH, "ptem") == -1) fatal ("ioctl I_PUSH ptem"); if (ioctl (xforkin, I_PUSH, "ldterm") == -1) fatal ("ioctl I_PUSH ldterm"); if (ioctl (xforkin, I_PUSH, "ttcompat") == -1) fatal ("ioctl I_PUSH ttcompat");], [How to set up a slave PTY, if needed.])
3498 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
3499 "typing" a signal character on the pty.])
3502 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
3503 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
3504 aix4-2 | cygwin | gnu | irix6-5 | freebsd | netbsd | openbsd )
3505 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3508 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
3509 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
3510 gnu-linux | gnu-kfreebsd )
3512 AC_MSG_CHECKING([for signals via characters])
3513 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3514 #include <linux/version.h>
3515 #if LINUX_VERSION_CODE < 0x20400
3516 # error "Linux version too old"
3518 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
3520 AC_MSG_RESULT([$emacs_signals_via_chars])
3521 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3526 dnl Used in dispnew.c
3527 AH_TEMPLATE(PENDING_OUTPUT_COUNT, [Number of chars of output in the
3528 buffer of a stdio stream.])
3530 AC_MSG_CHECKING([whether we are using the GNU C library])
3531 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3532 #include <features.h>
3533 #ifndef __GNU_LIBRARY__
3534 # error "this is not the GNU C library"
3536 ]], [[]])], emacs_glibc=yes, emacs_glibc=no)
3537 AC_MSG_RESULT([$emacs_glibc])
3539 if test $emacs_glibc = yes; then
3541 emacs_pending_output=unknown
3544 gnu | gnu-linux | gnu-kfreebsd )
3545 AC_MSG_CHECKING([for style of pending output formalism])
3546 dnl In autoconf 2.67 and later, we could use a single test
3547 dnl since the preprocessed output is accessible in "conftest.i".
3548 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3550 #if !defined (_IO_STDIO_H) && !defined (_STDIO_USES_IOSTREAM)
3551 # error "stdio definitions not found"
3553 ]], [[]])], emacs_pending_output=new, [])
3555 if test $emacs_pending_output = unknown; then
3557 gnu-linux | gnu-kfreebsd)
3558 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3561 # error "not using uclibc"
3563 ]], [[]])], emacs_pending_output=uclibc, emacs_pending_output=old)
3568 AC_MSG_RESULT([$emacs_pending_output])
3570 case $emacs_pending_output in
3572 dnl New C libio names.
3573 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE),
3574 [((FILE)->_IO_write_ptr - (FILE)->_IO_write_base)])
3577 dnl Using the uClibc library.
3578 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE),
3579 [((FILE)->__bufpos - (FILE)->__bufstart)])
3582 dnl Old C++ iostream names.
3583 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE),
3584 [((FILE)->_pptr - (FILE)->_pbase)])
3590 if test $emacs_pending_output = unknown; then
3591 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->__bufp - (FILE)->__buffer)])
3594 else dnl !emacs_glibc
3597 cygwin | darwin | freebsd | netbsd | openbsd )
3598 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->_p - (FILE)->_bf._base)])
3602 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->__ptr - (FILE)->__base)])
3606 dnl HAVE_STDIO_EXT_H && HAVE___FPENDING
3607 if test x$ac_cv_header_stdio_ext_h = xyes && \
3608 test x$ac_cv_func___fpending = xyes; then
3609 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [__fpending (FILE)])
3610 AC_DEFINE(DISPNEW_NEEDS_STDIO_EXT, 1,
3611 [Define if dispnew.c should include stdio_ext.h.])
3613 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->_ptr - (FILE)->_base)])
3620 dnl Used in vm-limit.c
3621 AH_TEMPLATE(DATA_START, [Address of the start of the data segment.])
3622 dnl Used in lisp.h, emacs.c, mem-limits.h
3623 dnl NEWS.18 describes this as "a number which contains
3624 dnl the high bits to be inclusive or'ed with pointers that are unpacked."
3625 AH_TEMPLATE(DATA_SEG_BITS, [Extra bits to be or'd in with any pointers
3626 stored in a Lisp_Object.])
3627 dnl if Emacs uses fewer than 32 bits for the value field of a LISP_OBJECT.
3631 dnl libc defines data_start.
3632 AC_DEFINE(DATA_START, [({ extern int data_start; (char *) &data_start; })])
3636 dnl The data segment on this machine always starts at address 0x40000000.
3637 AC_DEFINE(DATA_START, [0x40000000])
3638 AC_DEFINE(DATA_SEG_BITS, [0x40000000])
3641 AC_DEFINE(DATA_START, [0x10000000])
3642 AC_DEFINE(DATA_SEG_BITS, [0x10000000])
3647 AH_TEMPLATE(ULIMIT_BREAK_VALUE, [Undocumented.])
3648 AH_TEMPLATE(TAB3, [Undocumented.])
3651 darwin) AC_DEFINE(TAB3, OXTABS) ;;
3653 gnu | freebsd | netbsd | openbsd )
3654 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
3655 AC_DEFINE(TAB3, OXTABS)
3658 gnu-linux | gnu-kfreebsd )
3659 dnl libc-linux/sysdeps/linux/i386/ulimit.c says that due to shared
3660 dnl library, we cannot get the maximum address for brk.
3661 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3665 ]], [[]])], AC_DEFINE(ULIMIT_BREAK_VALUE, [(32*1024*1024)]), [])
3667 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3671 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
3672 [do { extern void *__libc_ia64_register_backing_store_base; __builtin_ia64_flushrs (); mark_memory (__libc_ia64_register_backing_store_base, __builtin_ia64_bsp ());} while (0)],
3673 [Mark a secondary stack, like the register stack on the ia64.]), [])
3677 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
3678 run_time_remap; for HPUX.])
3682 dnl Ulimit(UL_GMEMLIM) is busted...
3683 AC_DEFINE(ULIMIT_BREAK_VALUE, [0x14000000])
3688 dnl These won't be used automatically yet. We also need to know, at least,
3689 dnl that the stack is continuous.
3690 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
3691 registers relevant for conservative garbage collection in the jmp_buf.])
3693 AH_TEMPLATE(GC_MARK_STACK, [Define to GC_USE_GCPROS_AS_BEFORE if
3694 conservative garbage collection is not known to work.])
3698 aix4-2 | hpux* | unixware)
3699 dnl Conservative garbage collection has not been tested, so for now
3700 dnl play it safe and stick with the old-fashioned way of marking.
3701 AC_DEFINE(GC_MARK_STACK, [GC_USE_GCPROS_AS_BEFORE])
3704 dnl Not all the architectures are tested, but there are Debian packages
3705 dnl for SCM and/or Guile on them, so the technique must work. See also
3706 dnl comments in alloc.c concerning setjmp and gcc.
3707 dnl Fixme: it's probably safe to just use the GCC conditional below.
3708 gnu-linux | gnu-kfreebsd )
3709 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3710 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
3711 || defined __alpha__ || defined __mips__ || defined __s390__ \
3712 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
3713 || defined __ia64__ || defined __sh__
3716 # error "setjmp not known to work on this arch"
3718 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1),
3719 AC_DEFINE(GC_MARK_STACK, [GC_USE_GCPROS_AS_BEFORE]) )
3724 if test x$GCC = xyes; then
3725 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
3726 AC_DEFINE(GC_SETJMP_WORKS, 1)
3729 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
3730 freebsd | netbsd | openbsd | irix6-5 | sol2* )
3731 AC_DEFINE(GC_SETJMP_WORKS, 1)
3739 dnl setjmp and longjmp can safely replace _setjmp and _longjmp,
3740 dnl but they will run more slowly.
3741 AC_DEFINE(_setjmp, setjmp, [Some platforms redefine this.])
3742 AC_DEFINE(_longjmp, longjmp, [Some platforms redefine this.])
3743 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
3744 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
3745 dnl and this is all we need.
3746 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
3753 dnl Used in xfaces.c.
3754 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
3755 some systems, where it requires time.h.])
3759 dnl Greg A. Woods <woods@weird.com> says we must include signal.h
3760 dnl before syssignal.h is included, to work around interface conflicts
3761 dnl that are handled with CPP __RENAME() macro in signal.h.
3762 AC_DEFINE(SIGNAL_H_AHB, 1, [Define if AH_BOTTOM should include signal.h.])
3767 dnl Define symbols to identify the version of Unix this is.
3768 dnl Define all the symbols that apply correctly.
3769 AH_TEMPLATE(BSD4_2, [Define if the system is compatible with BSD 4.2.])
3770 AH_TEMPLATE(BSD_SYSTEM, [Define if the system is compatible with BSD 4.2.])
3771 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
3772 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
3773 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
3774 AH_TEMPLATE(USG5, [Define if the system is compatible with System V.])
3775 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
3781 dnl This symbol should be defined on AIX Version 3 ???????
3782 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3784 # error "_AIX not defined"
3786 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
3790 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
3794 dnl BSD4_3 and BSD4_4 are already defined in sys/param.h.
3795 AC_DEFINE(BSD4_2, [])
3796 AC_DEFINE(BSD_SYSTEM, [])
3797 dnl More specific than the above two. We cannot use __APPLE__ as this
3798 dnl may not be defined on non-OSX Darwin, and we cannot define DARWIN
3799 dnl here because Panther and lower CoreFoundation.h uses DARWIN to
3800 dnl distinguish OS X from pure Darwin.
3801 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
3805 AC_DEFINE(BSD4_2, [])
3806 dnl Hack to avoid calling AC_PREPROC_IFELSE multiple times.
3807 dnl Would not be needed with autoconf >= 2.67, where the
3808 dnl preprocessed output is accessible in "conftest.i".
3809 AC_DEFINE(BSD_SYSTEM_AHB, 1, [Define if AH_BOTTOM should change BSD_SYSTEM.])
3812 gnu | netbsd | openbsd )
3813 AC_DEFINE(BSD4_2, [])
3814 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3816 # error "BSD_SYSTEM not defined"
3818 ]], [[]])], [], AC_DEFINE(BSD_SYSTEM, 43) )
3821 gnu-linux | gnu-kfreebsd )
3823 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
3829 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
3835 AC_DEFINE(USG5_4, [])
3836 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
3842 AC_DEFINE(USG5_4, [])
3843 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
3849 AC_DEFINE(USG5_4, [])
3855 dnl Emacs supplies its own malloc, but glib (part of Gtk+) calls
3856 dnl memalign and on Cygwin, that becomes the Cygwin-supplied memalign.
3857 dnl As malloc is not the Cygwin malloc, the Cygwin memalign always
3858 dnl returns ENOSYS. A workaround is to set G_SLICE=always-malloc. */
3860 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
3861 G_SLICE environment variable to "always-malloc" at startup, if
3866 dnl See comments in sysdep.c:sys_signal.
3867 dnl SA_RESTART resets the timeout of `select' on hpux11.
3868 dnl Defining BROKEN_SA_RESTART is not the same as undef'ing SA_RESTART.
3869 AC_DEFINE(BROKEN_SA_RESTART, 1, [Define if SA_RESTART should only
3870 be used in batch mode.])
3871 dnl It works to open the pty's tty in the parent (Emacs), then
3872 dnl close and reopen it in the child.
3873 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
3874 works to open a pty's tty in the parent process, then close and
3875 reopen it in the child.])
3879 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
3880 use VSUSP instead of VSWTCH.])
3881 AC_DEFINE(SETPGRP_RELEASES_CTTY, 1, [Define if process.c:child_setup
3882 should not call setpgrp.])
3886 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
3891 # Set up the CFLAGS for real compilation, so we can substitute it.
3892 CFLAGS="$REAL_CFLAGS"
3893 CPPFLAGS="$REAL_CPPFLAGS"
3895 ## Hack to detect a buggy GCC version.
3896 if test "x$GCC" = xyes \
3897 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
3898 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
3899 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
3900 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
3903 version=$PACKAGE_VERSION
3905 ### Specify what sort of things we'll be editing into Makefile and config.h.
3906 ### Use configuration here uncanonicalized to avoid exceeding size limits.
3908 AC_SUBST(configuration)
3913 AC_SUBST(exec_prefix)
3916 AC_SUBST(sharedstatedir)
3917 AC_SUBST(libexecdir)
3922 AC_SUBST(standardlisppath)
3923 AC_SUBST(locallisppath)
3925 AC_SUBST(x_default_search_path)
3927 AC_SUBST(archlibdir)
3932 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
3933 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
3934 ## end of LIBX_BASE, but nothing ever set it.
3935 AC_SUBST(LD_SWITCH_X_SITE)
3936 AC_SUBST(C_SWITCH_X_SITE)
3937 AC_SUBST(GNUSTEP_CFLAGS)
3939 ## Used in lwlib/Makefile.in.
3940 AC_SUBST(X_TOOLKIT_TYPE)
3942 AC_SUBST(ns_appbindir)
3943 AC_SUBST(ns_appresdir)
3945 AC_SUBST(GNU_OBJC_CFLAGS)
3946 AC_SUBST(OTHER_FILES)
3948 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
3949 [Define to the canonical Emacs configuration name.])
3950 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${ac_configure_args}",
3951 [Define to the options passed to configure.])
3952 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
3953 define this to include extra configuration information.])
3958 if test "${HAVE_X_WINDOWS}" = "yes" ; then
3959 AC_DEFINE(HAVE_X_WINDOWS, 1,
3960 [Define to 1 if you want to use the X window system.])
3962 XOBJ="xterm.o xfns.o xselect.o xrdb.o fontset.o xsmfns.o fringe.o image.o xsettings.o xgselect.o"
3964 if test "$HAVE_XFT" = "yes"; then
3965 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
3966 elif test "$HAVE_FREETYPE" = "yes"; then
3967 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
3977 if test "${USE_X_TOOLKIT}" != "none" ; then
3979 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
3980 if test "${USE_X_TOOLKIT}" = "LUCID"; then
3981 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
3982 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
3983 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
3987 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
3988 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
3992 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
3993 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
3994 MOTIF_LIBW="MOTIF_LIBW -lXimp"
3998 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
3999 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4002 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4005 AC_SUBST(WIDGET_OBJ)
4008 case "$USE_X_TOOLKIT" in
4009 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4010 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4011 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4013 AC_SUBST(TOOLKIT_LIBW)
4015 if test "$USE_X_TOOLKIT" = "none"; then
4016 LIBXT_OTHER="\$(LIBXSM)"
4017 OLDXMENU_TARGET="really-oldXMenu"
4019 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4020 OLDXMENU_TARGET="really-lwlib"
4022 AC_SUBST(LIBXT_OTHER)
4024 ## The X Menu stuff is present in the X10 distribution, but missing
4025 ## from X11. If we have X10, just use the installed library;
4026 ## otherwise, use our own copy.
4027 if test "${HAVE_X11}" = "yes" ; then
4028 AC_DEFINE(HAVE_X11, 1,
4029 [Define to 1 if you want to use version 11 of X windows.
4030 Otherwise, Emacs expects to use version 10.])
4032 if test "$USE_X_TOOLKIT" = "none"; then
4033 OLDXMENU="\${oldXMenudir}/libXMenu11.a"
4035 OLDXMENU="\${lwlibdir}/liblw.a"
4037 LIBXMENU="\$(OLDXMENU)"
4038 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4039 OLDXMENU_DEPS="\${OLDXMENU} ../src/\${OLDXMENU}"
4041 ## For a syntactically valid Makefile; not actually used for anything.
4042 ## See comments in src/Makefile.in.
4044 ## FIXME This case (!HAVE_X11 && HAVE_X_WINDOWS) is no longer possible(?).
4045 if test "${HAVE_X_WINDOWS}" = "yes"; then
4054 if test "$HAVE_GTK" = "yes" || test "$HAVE_MENUS" != "yes"; then
4061 AC_SUBST(OLDXMENU_TARGET)
4064 AC_SUBST(LIBX_OTHER)
4065 AC_SUBST(OLDXMENU_DEPS)
4067 if test "${HAVE_MENUS}" = "yes" ; then
4068 AC_DEFINE(HAVE_MENUS, 1,
4069 [Define to 1 if you have mouse menus.
4070 (This is automatic if you use X, but the option to specify it remains.)
4071 It is also defined with other window systems that support xmenu.c.])
4074 if test "${GNU_MALLOC}" = "yes" ; then
4075 AC_DEFINE(GNU_MALLOC, 1,
4076 [Define to 1 if you want to use the GNU memory allocator.])
4080 if test "${REL_ALLOC}" = "yes" ; then
4081 AC_DEFINE(REL_ALLOC, 1,
4082 [Define REL_ALLOC if you want to use the relocating allocator for
4085 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4087 AC_SUBST(RALLOC_OBJ)
4089 if test "$opsys" = "cygwin"; then
4090 CYGWIN_OBJ="sheap.o"
4091 ## Cygwin differs because of its unexec().
4093 POST_ALLOC_OBJ=lastfile.o
4096 PRE_ALLOC_OBJ=lastfile.o
4099 AC_SUBST(CYGWIN_OBJ)
4100 AC_SUBST(PRE_ALLOC_OBJ)
4101 AC_SUBST(POST_ALLOC_OBJ)
4103 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4104 # it temporarily reverts them to their pre-pkg-config values,
4105 # because gnulib needs to work with both src (which uses the
4106 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4107 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4108 # and it therefore needs to run in an environment where LIBS does not
4109 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4110 # for some package unrelated to lib-src.
4113 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4114 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4115 gl_ASSERT_NO_GNULIB_POSIXCHECK
4116 gl_ASSERT_NO_GNULIB_TESTS
4122 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4125 ## The -headerpad option tells ld (see man page) to leave room at the
4126 ## end of the header for adding load commands. Needed for dumping.
4127 ## 0x690 is the total size of 30 segment load commands (at 56
4128 ## each); under Cocoa 31 commands are required.
4129 if test "$HAVE_NS" = "yes"; then
4130 libs_nsgui="-framework AppKit"
4136 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4138 ## This is here because src/Makefile.in did some extra fiddling around
4139 ## with LD_SWITCH_SYSTEM. The cpp logic was:
4140 ## #ifndef LD_SWITCH_SYSTEM
4141 ## #if !defined (__GNUC__) && ((defined (BSD_SYSTEM) && !defined (COFF)))
4142 ## Since all the *bsds define LD_SWITCH_SYSTEM, this simplifies to:
4143 ## not using gcc, darwin.
4144 ## Because this was done in src/Makefile.in, the resulting part of
4145 ## LD_SWITCH_SYSTEM was not used in configure (ie, in ac_link).
4146 ## It therefore seems cleaner to put this in LD_SWITCH_SYSTEM_TEMACS,
4147 ## rather than LD_SWITCH_SYSTEM.
4148 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4149 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4152 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4153 ## find X at run-time.
4154 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4155 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4156 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4157 ## had different values in configure (in ac_link) and src/Makefile.in.
4158 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4159 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4161 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4164 if test "$NS_IMPL_GNUSTEP" = "yes"; then
4165 LD_SWITCH_SYSTEM_TEMACS="${LD_SWITCH_SYSTEM_TEMACS} -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES} -lgnustep-gui -lgnustep-base -lobjc -lpthread"
4168 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4174 ## gnu: GNU needs its own crt0.
4175 aix4-2|cygwin|darwin|gnu|hpux*|irix6-5|sol2*|unixware) ORDINARY_LINK=yes ;;
4177 ## On post 1.3 releases of NetBSD, gcc -nostdlib also clears the
4178 ## library search parth, i.e. it won't search /usr/lib for libc and
4179 ## friends. Using -nostartfiles instead avoids this problem, and
4180 ## will also work on earlier NetBSD releases.
4181 netbsd|openbsd) LD_FIRSTFLAG="-nostartfiles" ;;
4183 ## powerpc*: NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp> says
4184 ## MkLinux/LinuxPPC needs this.
4185 ## s390x-* only supports opsys = gnu-linux so it can be added here.
4187 case "$canonical" in
4188 powerpc*|s390x-*) LD_FIRSTFLAG="-nostdlib" ;;
4194 if test "x$ORDINARY_LINK" = "xyes"; then
4197 AC_DEFINE(ORDINARY_LINK, 1, [Define if the C compiler is the linker.])
4199 ## The system files defining neither ORDINARY_LINK nor LD_FIRSTFLAG are:
4200 ## freebsd, gnu-* not on powerpc*|s390x*.
4201 elif test "x$GCC" = "xyes" && test "x$LD_FIRSTFLAG" = "x"; then
4203 ## Versions of GCC >= 2.0 put their library, libgcc.a, in obscure
4204 ## places that are difficult to figure out at make time. Fortunately,
4205 ## these same versions allow you to pass arbitrary flags on to the
4206 ## linker, so there is no reason not to use it as a linker.
4208 ## Well, it is not quite perfect. The "-nostdlib" keeps GCC from
4209 ## searching for libraries in its internal directories, so we have to
4210 ## ask GCC explicitly where to find libgcc.a (LIB_GCC below).
4211 LD_FIRSTFLAG="-nostdlib"
4214 ## FIXME? What setting of EDIT_LDFLAGS should this have?
4215 test "$NS_IMPL_GNUSTEP" = "yes" && LD_FIRSTFLAG="-rdynamic"
4217 AC_SUBST(LD_FIRSTFLAG)
4220 ## FIXME? The logic here is not precisely the same as that above.
4221 ## There is no check here for a pre-defined LD_FIRSTFLAG.
4222 ## Should we only be setting LIB_GCC if LD ~ -nostdlib?
4224 if test "x$GCC" = "xyes" && test "x$ORDINARY_LINK" != "xyes"; then
4227 freebsd|netbsd|openbsd) LIB_GCC= ;;
4230 ## armin76@gentoo.org reported that the lgcc_s flag is necessary to
4231 ## build on ARM EABI under GNU/Linux. (Bug#5518)
4237 ## FIXME? s/gnu-linux.h used to define LIB_GCC as below, then
4238 ## immediately undefine it again and redefine it to empty.
4239 ## Was the C_SWITCH_X_SITE part really necessary?
4240 ## LIB_GCC=`$CC $C_SWITCH_X_SITE -print-libgcc-file-name`
4246 ## Ask GCC where to find libgcc.a.
4247 *) LIB_GCC=`$CC -print-libgcc-file-name 2> /dev/null` ;;
4253 ## If we're using X11/GNUstep, define some consequences.
4254 if test "$HAVE_X_WINDOWS" = "yes" || test "$HAVE_NS" = "yes"; then
4255 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4256 AC_DEFINE(HAVE_MOUSE, 1, [Define if you have mouse support.])
4260 AH_TOP([/* GNU Emacs site configuration template file.
4262 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2012
4263 Free Software Foundation, Inc.
4265 This file is part of GNU Emacs.
4267 GNU Emacs is free software: you can redistribute it and/or modify
4268 it under the terms of the GNU General Public License as published by
4269 the Free Software Foundation, either version 3 of the License, or
4270 (at your option) any later version.
4272 GNU Emacs is distributed in the hope that it will be useful,
4273 but WITHOUT ANY WARRANTY; without even the implied warranty of
4274 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4275 GNU General Public License for more details.
4277 You should have received a copy of the GNU General Public License
4278 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4281 /* No code in Emacs #includes config.h twice, but some bits of code
4282 intended to work with other packages as well (like gmalloc.c)
4283 think they can include it as many times as they like. */
4284 #ifndef EMACS_CONFIG_H
4285 #define EMACS_CONFIG_H
4288 AH_BOTTOM([#include <conf_post.h>
4290 #endif /* EMACS_CONFIG_H */
4299 #### Report on what we decided to do.
4300 #### Report GTK as a toolkit, even if it doesn't use Xt.
4301 #### It makes printing result more understandable as using GTK sets
4302 #### toolkit_scroll_bars to yes by default.
4303 if test "${HAVE_GTK}" = "yes"; then
4304 if test "${with_gtk3}" = "yes"; then
4312 Configured for \`${canonical}'.
4314 Where should the build process find the source code? ${srcdir}
4315 What compiler should emacs be built with? ${CC} ${CFLAGS}
4316 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4317 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4318 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4319 What window system should Emacs use? ${window_system}
4320 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4322 if test -n "${x_includes}"; then
4323 echo " Where do we find X Windows header files? ${x_includes}"
4325 echo " Where do we find X Windows header files? Standard dirs"
4327 if test -n "${x_libraries}"; then
4328 echo " Where do we find X Windows libraries? ${x_libraries}"
4330 echo " Where do we find X Windows libraries? Standard dirs"
4333 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4334 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4335 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4336 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4337 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4338 echo " Does Emacs use -lpng? ${HAVE_PNG}"
4339 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4340 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4342 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4343 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4344 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4345 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4346 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4347 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4348 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4350 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4351 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4352 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
4353 echo " Does Emacs use -lxft? ${HAVE_XFT}"
4355 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
4358 if test -n "${EMACSDATA}"; then
4359 echo " Environment variable EMACSDATA set to: $EMACSDATA"
4361 if test -n "${EMACSDOC}"; then
4362 echo " Environment variable EMACSDOC set to: $EMACSDOC"
4367 if test "$HAVE_NS" = "yes"; then
4369 echo "You must run \"${MAKE-make} install\" in order to test the built application.
4370 The installed application will go to nextstep/Emacs.app and can be
4371 run or moved from there."
4372 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
4373 echo "The application will be fully self-contained."
4375 echo "The lisp resources for the application will be installed under ${prefix}.
4376 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
4377 to run if these resources are not installed."
4382 if test "${opsys}" = "cygwin"; then
4384 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
4390 # Remove any trailing slashes in these variables.
4391 [test "${prefix}" != NONE &&
4392 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
4393 test "${exec_prefix}" != NONE &&
4394 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
4396 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
4397 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
4398 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
4399 dnl (else you get "no `Makefile.am' found for any configure output").
4400 dnl This will work, but you get a config.status that is not quite right
4401 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
4402 dnl That doesn't have any obvious consequences for Emacs, but on the whole
4403 dnl it seems better to just live with the duplication.
4404 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"
4406 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
4407 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
4408 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
4411 dnl test/ is not present in release tarfiles.
4412 opt_makefile=test/automated/Makefile
4414 if test -f $srcdir/${opt_makefile}.in; then
4415 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4416 dnl Again, it's best not to use a variable. Though you can add
4417 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
4418 AC_CONFIG_FILES([test/automated/Makefile])
4422 dnl admin/ may or may not be present.
4423 opt_makefile=admin/unidata/Makefile
4425 if test -f $srcdir/${opt_makefile}.in; then
4426 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4427 AC_CONFIG_FILES([admin/unidata/Makefile])
4431 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
4433 AC_SUBST(SUBDIR_MAKEFILES_IN)
4435 dnl Make the necessary directories, if they don't exist.
4436 AC_CONFIG_COMMANDS([mkdirs], [
4437 for dir in etc lisp ; do
4438 test -d ${dir} || mkdir ${dir}
4442 dnl You might wonder (I did) why epaths.h is generated by running make,
4443 dnl rather than just letting configure generate it from epaths.in.
4444 dnl One reason is that the various paths are not fully expanded (see above);
4445 dnl eg gamedir=${prefix}/var/games/emacs.
4446 dnl Secondly, the GNU Coding standards require that one should be able
4447 dnl to run `make prefix=/some/where/else' and override the values set
4448 dnl by configure. This also explains the `move-if-change' test and
4449 dnl the use of force in the `epaths-force' rule in Makefile.in.
4450 AC_CONFIG_COMMANDS([epaths], [
4451 echo creating src/epaths.h
4452 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
4453 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS"])
4455 AC_CONFIG_COMMANDS([gdbinit], [
4456 if test ! -f src/.gdbinit && test -f $srcdir/src/.gdbinit; then
4457 echo creating src/.gdbinit
4458 echo source $srcdir/src/.gdbinit > src/.gdbinit