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],[don't process async input synchronously])
132 if test "$with_sync_input" = yes; then
133 AC_DEFINE(SYNC_INPUT, 1, [Process async input synchronously.])
136 dnl FIXME currently it is not the last.
137 dnl This should be the last --with option, because --with-x is
138 dnl added later on when we find the path of X, and it's best to
139 dnl keep them together visually.
140 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
141 [use an X toolkit (KIT one of: yes or gtk, gtk2, gtk3, lucid or athena, motif, no)])],
142 [ case "${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 ;;
152 AC_MSG_ERROR([`--with-x-toolkit=$withval' is invalid;
153 this option's value should be `yes', `no', `lucid', `athena', `motif', `gtk',
154 `gtk2' or `gtk3'. `yes' and `gtk' are synonyms.
155 `athena' and `lucid' are synonyms.])
161 OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit)])
162 if test "$with_wide_int" = yes; then
163 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
166 dnl _ON results in a '--without' option in the --help output, so
167 dnl the help text should refer to "don't compile", etc.
168 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
169 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
170 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
171 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
172 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
173 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
174 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
175 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
177 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
178 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
179 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
181 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
182 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
183 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
184 OPTION_DEFAULT_OFF([ns],[use NeXTstep (Cocoa or GNUstep) windowing system])
186 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
187 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
188 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
189 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
190 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
191 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
193 ## For the times when you want to build Emacs but don't have
194 ## a suitable makeinfo, and can live without the manuals.
195 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
196 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
198 ## Makefile.in needs the cache file name.
201 ## This is an option because I do not know if all info/man support
202 ## compressed files, nor how to test if they do so.
203 OPTION_DEFAULT_ON([compress-info],[don't compress the installed Info pages])
204 if test $with_compress_info = yes; then
211 AC_ARG_WITH([pkg-config-prog],dnl
212 [AS_HELP_STRING([--with-pkg-config-prog=PATH],
213 [path to pkg-config for finding GTK and librsvg])])
214 if test "X${with_pkg_config_prog}" != X; then
215 if test "${with_pkg_config_prog}" != yes; then
216 PKG_CONFIG="${with_pkg_config_prog}"
221 AC_ARG_WITH([crt-dir],dnl
222 [AS_HELP_STRING([--with-crt-dir=DIR],[directory containing crtn.o etc.
223 The default is /usr/lib, or /usr/lib64 on some platforms.])])
224 CRT_DIR="${with_crt_dir}"
226 AC_ARG_WITH(gameuser,dnl
227 [AS_HELP_STRING([--with-gameuser=USER],[user for shared game score files])])
228 test "X${with_gameuser}" != X && test "${with_gameuser}" != yes \
229 && gameuser="${with_gameuser}"
230 test "X$gameuser" = X && gameuser=games
232 AC_ARG_WITH([gnustep-conf],dnl
233 [AS_HELP_STRING([--with-gnustep-conf=PATH],[path to GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
234 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
235 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
236 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
237 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
239 AC_ARG_ENABLE(ns-self-contained,
240 [AS_HELP_STRING([--disable-ns-self-contained],
241 [disable self contained build under NeXTstep])],
242 EN_NS_SELF_CONTAINED=$enableval,
243 EN_NS_SELF_CONTAINED=yes)
245 AC_ARG_ENABLE(locallisppath,
246 [AS_HELP_STRING([--enable-locallisppath=PATH],
247 [directories Emacs should search for lisp files specific
249 if test "${enableval}" = "no"; then
251 elif test "${enableval}" != "yes"; then
252 locallisppath=${enableval}
255 AC_ARG_ENABLE(checking,
256 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
257 [enable expensive run-time checks. With LIST,
258 enable only specific categories of checks.
259 Categories are: all,yes,no.
260 Flags are: stringbytes, stringoverrun, stringfreelist,
261 xmallocoverrun, conslist, glyphs])],
262 [ac_checking_flags="${enableval}"],[])
263 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
264 for check in $ac_checking_flags
267 # these set all the flags to specific states
268 yes) ac_enable_checking=1 ;;
269 no) ac_enable_checking= ;
270 ac_gc_check_stringbytes= ;
271 ac_gc_check_string_overrun= ;
272 ac_gc_check_string_free_list= ;
273 ac_xmalloc_overrun= ;
274 ac_gc_check_cons_list= ;
276 all) ac_enable_checking=1 ;
277 ac_gc_check_stringbytes=1 ;
278 ac_gc_check_string_overrun=1 ;
279 ac_gc_check_string_free_list=1 ;
280 ac_xmalloc_overrun=1 ;
281 ac_gc_check_cons_list=1 ;
283 # these enable particular checks
284 stringbytes) ac_gc_check_stringbytes=1 ;;
285 stringoverrun) ac_gc_check_string_overrun=1 ;;
286 stringfreelist) ac_gc_check_string_free_list=1 ;;
287 xmallocoverrun) ac_xmalloc_overrun=1 ;;
288 conslist) ac_gc_check_cons_list=1 ;;
289 glyphs) ac_glyphs_debug=1 ;;
290 *) AC_MSG_ERROR(unknown check category $check) ;;
295 if test x$ac_enable_checking != x ; then
296 AC_DEFINE(ENABLE_CHECKING, 1,
297 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
299 if test x$ac_gc_check_stringbytes != x ; then
300 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
301 [Define this temporarily to hunt a bug. If defined, the size of
302 strings is redundantly recorded in sdata structures so that it can
303 be compared to the sizes recorded in Lisp strings.])
305 if test x$ac_gc_check_string_overrun != x ; then
306 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
307 [Define this to check for short string overrun.])
309 if test x$ac_gc_check_string_free_list != x ; then
310 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
311 [Define this to check the string free list.])
313 if test x$ac_xmalloc_overrun != x ; then
314 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
315 [Define this to check for malloc buffer overrun.])
317 if test x$ac_gc_check_cons_list != x ; then
318 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
319 [Define this to check for errors in cons list.])
321 if test x$ac_glyphs_debug != x ; then
322 AC_DEFINE(GLYPH_DEBUG, 1,
323 [Define this to enable glyphs debugging code.])
326 AC_ARG_ENABLE(check-lisp-object-type,
327 [AS_HELP_STRING([--enable-check-lisp-object-type],
328 [enable compile time checks for the Lisp_Object data type.
329 This is useful for development for catching certain types of bugs.])],
330 if test "${enableval}" != "no"; then
331 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
332 [Define this to enable compile time checks for the Lisp_Object data type.])
336 AC_ARG_ENABLE(profiling,
337 [AS_HELP_STRING([--enable-profiling],
338 [build emacs with profiling support.
339 This might not work on all platforms])],
340 [ac_enable_profiling="${enableval}"],[])
341 if test x$ac_enable_profiling != x ; then
342 PROFILING_CFLAGS="-DPROFILING=1 -pg"
346 AC_SUBST(PROFILING_CFLAGS)
348 AC_ARG_ENABLE(autodepend,
349 [AS_HELP_STRING([--enable-autodepend],
350 [automatically generate dependencies to .h-files.
351 Requires GNU Make and Gcc. Enabled if GNU Make and Gcc is
353 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
355 #### Make srcdir absolute, if it isn't already. It's important to
356 #### avoid running the path through pwd unnecessarily, since pwd can
357 #### give you automounter prefixes, which can go away. We do all this
358 #### so Emacs can find its files when run uninstalled.
359 ## Make sure CDPATH doesn't affect cd (in case PWD is relative).
364 ## We may be able to use the $PWD environment variable to make this
365 ## absolute. But sometimes PWD is inaccurate.
366 ## Note: we used to use ${PWD} at the end instead of `pwd`,
367 ## but that tested only for a well-formed and valid PWD,
368 ## it did not object when PWD was well-formed and valid but just wrong.
369 if test ".${PWD}" != "." && test ".`(cd ${PWD} ; sh -c pwd)`" = ".`pwd`" ;
373 srcdir="`(cd ${srcdir}; pwd)`"
376 * ) srcdir="`(cd ${srcdir}; pwd)`" ;;
379 ### Canonicalize the configuration name.
383 configuration=${host_alias-${build_alias-$host}}
385 dnl This used to use changequote, but, apart from `changequote is evil'
386 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
387 dnl the great gob of text. Thus it's not processed for possible expansion.
388 dnl Just make sure the brackets remain balanced.
390 dnl Since Emacs can't find matching pairs of quotes, boundaries are
391 dnl indicated by comments.
395 ### If you add support for a new configuration, add code to this
396 ### switch statement to recognize your configuration name and select
397 ### the appropriate operating system file.
399 ### You would hope that you could choose an s/*.h
400 ### file based on the operating system portion. However, it turns out
401 ### that each s/*.h file is pretty manufacturer-specific.
402 ### So we basically have to have a special case for each
403 ### configuration name.
405 ### As far as handling version numbers on operating systems is
406 ### concerned, make sure things will fail in a fixable way. If
407 ### /etc/MACHINES doesn't say anything about version numbers, be
408 ### prepared to handle anything reasonably. If version numbers
409 ### matter, be sure /etc/MACHINES says something about it.
412 case "${canonical}" in
414 ## GNU/Linux and similar ports
424 ## FreeBSD kernel + glibc based userland
439 ## Apple Darwin / Mac OS X
441 case "${canonical}" in
448 ## Use fink packages if available.
449 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
450 ## if test -d /sw/include && test -d /sw/lib; then
451 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
452 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
456 ## HP 9000 series 700 and 800, running HP/UX
460 hppa*-hp-hpux1[1-9]* )
462 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
466 rs6000-ibm-aix4.[23]* )
469 powerpc-ibm-aix4.[23]* )
472 rs6000-ibm-aix[56]* )
475 powerpc-ibm-aix[56]* )
479 ## Silicon Graphics machines
483 # Without defining _LANGUAGE_C, things get masked out in the headers
484 # so that, for instance, grepping for `free' in stdlib.h fails and
485 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
486 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
491 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
492 | x86_64-*-solaris2* | x86_64-*-sunos5*)
493 case "${canonical}" in
495 amd64-*-*|x86_64-*-*) ;;
499 case "${canonical}" in
500 *-sunos5.6* | *-solaris2.6* )
504 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
506 emacs_check_sunpro_c=yes
508 *-sunos5* | *-solaris* )
510 emacs_check_sunpro_c=yes
513 ## Watch out for a compiler that we know will not work.
514 case "${canonical}" in
515 *-solaris* | *-sunos5* )
516 if [ "x$CC" = x/usr/ucb/cc ]; then
517 ## /usr/ucb/cc doesn't work;
518 ## we should find some other compiler that does work.
526 ## Intel 386 machines where we don't care about the manufacturer.
528 case "${canonical}" in
529 *-cygwin ) opsys=cygwin ;;
530 *-darwin* ) opsys=darwin ;;
531 *-sysv4.2uw* ) opsys=unixware ;;
532 *-sysv5uw* ) opsys=unixware ;;
533 *-sysv5OpenUNIX* ) opsys=unixware ;;
534 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
543 ### If the code above didn't choose an operating system, just choose
544 ### an operating system based on the configuration name. You really
545 ### only want to use this when you have no idea what the right
546 ### operating system is; if you know what operating systems a machine
547 ### runs, it's cleaner to make it explicit in the case statement
549 if test x"${opsys}" = x; then
550 case "${canonical}" in
551 *-gnu* ) opsys=gnu ;;
561 if test $unported = yes; then
562 AC_MSG_ERROR([Emacs hasn't been ported to `${canonical}' systems.
563 Check `etc/MACHINES' for recognized configuration names.])
567 #### Choose a compiler.
569 dnl Sets GCC=yes if using gcc.
573 if test x$GCC = xyes; then
574 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
576 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
579 # Initialize gnulib right after choosing the compiler.
582 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
583 # if -g3 works and the user does not specify CFLAGS.
584 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
585 if test "$ac_test_CFLAGS" != set; then
588 emacs_g3_CFLAGS='-g3';;
590 emacs_g3_CFLAGS='-g3 -O2';;
594 if test -n "$emacs_g3_CFLAGS"; then
595 emacs_save_CFLAGS=$CFLAGS
596 CFLAGS=$emacs_g3_CFLAGS
597 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
598 [emacs_cv_prog_cc_g3],
599 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
600 [emacs_cv_prog_cc_g3=yes],
601 [emacs_cv_prog_cc_g3=no])])
602 if test $emacs_cv_prog_cc_g3 = yes; then
603 CFLAGS=$emacs_g3_CFLAGS
605 CFLAGS=$emacs_save_CFLAGS
610 AC_ARG_ENABLE([gcc-warnings],
611 [AS_HELP_STRING([--enable-gcc-warnings],
612 [turn on lots of GCC warnings. This is intended for
613 developers, and may generate false alarms when used
614 with older or non-GNU development tools.])],
617 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
619 gl_gcc_warnings=$enableval],
623 AC_ARG_ENABLE(link-time-optimization,
624 [AS_HELP_STRING([--enable-link-time-optimization],
625 [build emacs with link-time optimization.
626 This is supported only for GCC since 4.5.0.])],
627 if test "${enableval}" != "no"; then
628 AC_MSG_CHECKING([whether link-time optimization is supported])
630 if test x$GCC = xyes; then
631 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
632 if test x$CPUS != x; then
638 CFLAGS="$CFLAGS $LTO"
639 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
640 [ac_lto_supported=yes], [ac_lto_supported=no])
643 AC_MSG_RESULT([$ac_lto_supported])
644 if test "$ac_lto_supported" = "yes"; then
645 CFLAGS="$CFLAGS $LTO"
649 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
650 # ------------------------------------------------
651 # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
652 # Otherwise, run RUN-IF-NOT-FOUND.
653 AC_DEFUN([gl_GCC_VERSION_IFELSE],
657 #if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
660 # error "your version of gcc is older than $1.$2"
667 # When compiling with GCC, prefer -isystem to -I when including system
668 # include files, to avoid generating useless diagnostics for the files.
669 if test "$gl_gcc_warnings" != yes; then
674 # This, $nw, is the list of warnings we disable.
677 case $with_x_toolkit in
678 lucid | athena | motif)
679 # Old toolkits mishandle 'const'.
680 nw="$nw -Wwrite-strings"
683 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
686 AC_SUBST([WERROR_CFLAGS])
688 nw="$nw -Waggregate-return" # anachronistic
689 nw="$nw -Wlong-long" # C90 is anachronistic
690 nw="$nw -Wc++-compat" # We don't care about C++ compilers
691 nw="$nw -Wundef" # Warns on '#if GNULIB_FOO' etc in gnulib
692 nw="$nw -Wtraditional" # Warns on #elif which we use often
693 nw="$nw -Wcast-qual" # Too many warnings for now
694 nw="$nw -Wconversion" # Too many warnings for now
695 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
696 nw="$nw -Wsign-conversion" # Too many warnings for now
697 nw="$nw -Woverlength-strings" # Not a problem these days
698 nw="$nw -Wtraditional-conversion" # Too many warnings for now
699 nw="$nw -Wunreachable-code" # so buggy that it's now silently ignored
700 nw="$nw -Wpadded" # Our structs are not padded
701 nw="$nw -Wredundant-decls" # we regularly (re)declare functions
702 nw="$nw -Wlogical-op" # any use of fwrite provokes this
703 nw="$nw -Wformat-nonliteral" # we do this a lot
704 nw="$nw -Wvla" # warnings in gettext.h
705 nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
706 nw="$nw -Wswitch-enum" # Too many warnings for now
707 nw="$nw -Wswitch-default" # Too many warnings for now
708 nw="$nw -Wfloat-equal" # warns about high-quality code
709 nw="$nw -Winline" # OK to ignore 'inline'
710 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
711 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
712 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
714 # Emacs doesn't care about shadowing; see
715 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
718 # The following lines should be removable at some point.
719 nw="$nw -Wstack-protector"
720 nw="$nw -Wstrict-overflow"
721 nw="$nw -Wsuggest-attribute=pure"
723 gl_MANYWARN_ALL_GCC([ws])
724 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
728 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
729 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
730 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
731 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
732 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
733 gl_WARN_ADD([-Wno-format-nonliteral])
735 # In spite of excluding -Wlogical-op above, it is enabled, as of
736 # gcc 4.5.0 20090517.
737 gl_WARN_ADD([-Wno-logical-op])
739 gl_WARN_ADD([-fdiagnostics-show-option])
740 gl_WARN_ADD([-funit-at-a-time])
742 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
743 AH_VERBATIM([FORTIFY_SOURCE],
744 [/* Enable compile-time and run-time bounds-checking, and some warnings,
745 without upsetting glibc 2.15+. */
746 #if defined __OPTIMIZE__ && __OPTIMIZE__
747 # define _FORTIFY_SOURCE 2
750 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
752 # We use a slightly smaller set of warning options for lib/.
753 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
755 nw="$nw -Wunused-macros"
757 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
758 AC_SUBST([GNULIB_WARN_CFLAGS])
763 dnl Some other nice autoconf tests.
764 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
767 dnl if test "x$RANLIB" = x; then
772 AC_PATH_PROG(INSTALL_INFO, install-info, :,
773 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
774 dnl Don't use GZIP, which is used by gzip for additional parameters.
775 AC_PATH_PROG(GZIP_PROG, gzip)
777 if test $opsys = gnu-linux; then
778 AC_PATH_PROG(PAXCTL, paxctl,,
779 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
780 if test "X$PAXCTL" != X; then
781 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
782 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
783 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
784 else AC_MSG_RESULT(no); PAXCTL=""; fi])
788 ## Need makeinfo >= 4.7 (?) to build the manuals.
789 AC_PATH_PROG(MAKEINFO, makeinfo, no)
790 dnl By this stage, configure has already checked for egrep and set EGREP,
791 dnl or exited with an error if no egrep was found.
792 if test "$MAKEINFO" != "no" && \
793 test x"`$MAKEINFO --version 2> /dev/null | $EGREP 'texinfo[[^0-9]]*([[1-4]][[0-9]]+|[[5-9]]|4\.[[7-9]]|4\.[[1-6]][[0-9]]+)'`" = x; then
797 ## Makeinfo is unusual. For a released Emacs, the manuals are
798 ## pre-built, and not deleted by the normal clean rules. makeinfo is
799 ## therefore in the category of "special tools" not normally required, which
800 ## configure does not have to check for (eg autoconf itself).
801 ## In a Bazaar checkout on the other hand, the manuals are not included.
802 ## So makeinfo is a requirement to build from Bazaar, and configure
803 ## should test for it as it does for any other build requirement.
804 ## We use the presence of $srcdir/info/emacs to distinguish a release,
805 ## with pre-built manuals, from a Bazaar checkout.
808 if test "$MAKEINFO" = "no"; then
810 if test "x${with_makeinfo}" = "xno"; then
812 elif test ! -e $srcdir/info/emacs; then
813 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
814 source tree does not seem to have pre-built manuals in the `info' directory.
815 Either install a suitable version of makeinfo, or re-run configure
816 with the `--without-makeinfo' option to build without the manuals.] )
819 AC_SUBST(HAVE_MAKEINFO)
821 dnl Just so that there is only a single place we need to edit.
827 dnl Add our options to ac_link now, after it is set up.
829 if test x$GCC = xyes; then
830 test "x$GCC_LINK_TEST_OPTIONS" != x && \
831 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
833 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
834 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
837 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
838 dnl If we can link with the flag, it shouldn't do any harm anyhow.
839 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
840 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
841 dnl if not built to support GNU ld.
843 late_LDFLAGS=$LDFLAGS
844 if test x$GCC = xyes; then
845 LDFLAGS="$LDFLAGS -Wl,-znocombreloc"
847 LDFLAGS="$LDFLAGS -znocombreloc"
850 AC_MSG_CHECKING([for -znocombreloc])
851 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
852 [AC_MSG_RESULT(yes)],
853 LDFLAGS=$late_LDFLAGS
857 dnl The function dump-emacs will not be defined and temacs will do
858 dnl (load "loadup") automatically unless told otherwise.
859 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
861 your-opsys-here) CANNOT_DUMP=yes ;;
864 test "$CANNOT_DUMP" = "yes" && \
865 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
867 AC_SUBST(CANNOT_DUMP)
872 # MSDOS uses unexcoff.o
873 # MSWindows uses unexw32.o
881 UNEXEC_OBJ=unexmacosx.o
884 UNEXEC_OBJ=unexhp9k800.o
887 # Use the Solaris dldump() function, called from unexsol.c, to dump
888 # emacs, instead of the generic ELF dump code found in unexelf.c.
889 # The resulting binary has a complete symbol table, and is better
890 # for debugging and other observability tools (debuggers, pstack, etc).
892 # If you encounter a problem using dldump(), please consider sending
893 # a message to the OpenSolaris tools-linking mailing list:
894 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
896 # It is likely that dldump() works with older Solaris too, but this has
897 # not been tested, so for now this change is for Solaris 10 or newer.
905 ## Let `ld' find image libs and similar things in /usr/local/lib.
906 ## The system compiler, GCC, has apparently been modified to not
907 ## look there, contrary to what a stock GCC would do.
908 ### It's not our place to do this. See bug#10313#17.
909 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
914 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
915 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
919 ### It's not our place to do this. See bug#10313#17.
920 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
925 ## Han Boetes <han@mijncomputer.nl> says this is necessary,
926 ## otherwise Emacs dumps core on elf systems.
927 LD_SWITCH_SYSTEM="-Z"
930 AC_SUBST(LD_SWITCH_SYSTEM)
932 ac_link="$ac_link $LD_SWITCH_SYSTEM"
934 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
935 ## which has not been defined yet. When this was handled with cpp,
936 ## it was expanded to null when configure sourced the s/*.h file.
937 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
938 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
939 ## (or somesuch), but because it is supposed to go at the _front_
940 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
941 ## Compare with the gnu-linux case below, which added to the end
942 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
943 ## LD_SWITCH_SYSTEM_TEMACS.
946 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
953 AC_CHECK_DECL([__ELF__])
954 if test "$ac_cv_have_decl___ELF__" = "yes"; then
955 ## With ELF, make sure that all common symbols get allocated to in the
956 ## data section. Otherwise, the dump of temacs may miss variables in
957 ## the shared library that have been initialized. For example, with
958 ## GNU libc, __malloc_initialized would normally be resolved to the
959 ## shared library's .bss section, which is fatal.
960 if test "x$GCC" = "xyes"; then
961 C_SWITCH_MACHINE="-fno-common"
963 AC_MSG_ERROR([What gives? Fix me if DEC Unix supports ELF now.])
966 UNEXEC_OBJ=unexalpha.o
970 AC_SUBST(C_SWITCH_MACHINE)
975 ## Some programs in src produce warnings saying certain subprograms
976 ## are too complex and need a MAXMEM value greater than 2000 for
977 ## additional optimization. --nils@exp-math.uni-essen.de
978 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
979 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
980 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
981 ## It is redundant in glibc2, since we define _GNU_SOURCE.
982 AC_SUBST(C_SWITCH_SYSTEM)
987 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
988 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
990 freebsd) LIBS_SYSTEM="-lutil" ;;
992 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
994 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
996 ## Motif needs -lgen.
997 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
999 AC_SUBST(LIBS_SYSTEM)
1002 ### Make sure subsequent tests use flags consistent with the build flags.
1004 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1005 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1007 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1010 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C89 or better.
1011 AC_DEFUN([AC_TYPE_SIZE_T])
1012 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1013 AC_DEFUN([AC_TYPE_UID_T])
1019 dnl Current possibilities handled by sed (aix4-2 -> aix,
1020 dnl gnu-linux -> gnu/linux, etc.):
1021 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1022 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1023 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1025 dnl NB do not use CRT_DIR unquoted here, since it might not be set yet.
1029 START_FILES='pre-crt0.o'
1032 ## Adding -lm confuses the dynamic linker, so omit it.
1034 START_FILES='pre-crt0.o'
1037 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtn.o'
1038 START_FILES='pre-crt0.o $(CRT_DIR)/crt1.o $(CRT_DIR)/crti.o'
1039 SYSTEM_TYPE=berkeley-unix
1041 gnu-linux | gnu-kfreebsd )
1042 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtn.o'
1043 START_FILES='pre-crt0.o $(CRT_DIR)/crt1.o $(CRT_DIR)/crti.o'
1045 hpux10-20 | hpux11 )
1047 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o'
1049 dnl NB this may be adjusted below.
1051 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o'
1052 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o $(CRT_DIR)/crtbegin.o'
1053 SYSTEM_TYPE=berkeley-unix
1057 SYSTEM_TYPE=usg-unix-v
1063 AC_SUBST(START_FILES)
1064 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1065 [The type of system you are compiling for; sets `system-type'.])
1067 dnl Not all platforms use crtn.o files. Check if the current one does.
1070 for file in x $LIB_STANDARD $START_FILES; do
1072 *CRT_DIR*) crt_files="$crt_files `echo $file | sed -e 's|.*/||'`" ;;
1076 if test "x$crt_files" != x; then
1078 ## If user specified a crt-dir, use that unconditionally.
1081 if test "X$CRT_DIR" = "X"; then
1083 CRT_DIR=/usr/lib # default
1085 case "$canonical" in
1086 x86_64-*-linux-gnu* | s390x-*-linux-gnu*)
1087 ## On x86-64 and s390x GNU/Linux distributions, the standard library
1088 ## can be in a variety of places. We only try /usr/lib64 and /usr/lib.
1089 ## For anything else (eg /usr/lib32), it is up the user to specify
1090 ## the location (bug#5655).
1091 ## Test for crtn.o, not just the directory, because sometimes the
1092 ## directory exists but does not have the relevant files (bug#1287).
1093 ## FIXME better to test for binary compatibility somehow.
1094 test -e /usr/lib64/crtn.o && CRT_DIR=/usr/lib64
1097 powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*) CRT_DIR=/usr/lib64 ;;
1101 hpux10-20) CRT_DIR=/lib ;;
1104 test "x${GCC}" = xyes && crt_gcc=yes
1110 for file in $crt_files; do
1112 ## If we're using gcc, try to determine it automatically by asking
1113 ## gcc. [If this doesn't work, CRT_DIR will remain at the
1114 ## system-dependent default from above.]
1115 if test $crt_gcc = yes && test ! -e $CRT_DIR/$file; then
1117 crt_file=`$CC --print-file-name=$file 2>/dev/null`
1120 CRT_DIR=`AS_DIRNAME(["$crt_file"])`
1125 dnl We expect all the files to be in a single directory, so after the
1126 dnl first there is no point asking gcc.
1129 test -e $CRT_DIR/$file || crt_missing="$crt_missing $file"
1132 test "x$crt_missing" = x || \
1133 AC_MSG_ERROR([Required file(s) not found:$crt_missing
1134 Try using the --with-crt-dir option.])
1136 fi # crt_files != ""
1142 if test -f $CRT_DIR/crti.o; then
1144 test -f $CRT_DIR/crtn.o || \
1145 AC_MSG_ERROR([Required file not found: crtn.o])
1147 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o $(CRT_DIR)/crtn.o'
1148 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o $(CRT_DIR)/crti.o $(CRT_DIR)/crtbegin.o'
1154 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1155 pre_PKG_CONFIG_LIBS=$LIBS
1157 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
1159 dnl This function definition taken from Gnome 2.0
1160 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
1161 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
1162 dnl also defines GSTUFF_PKG_ERRORS on error
1163 AC_DEFUN([PKG_CHECK_MODULES], [
1166 if test "$PKG_CONFIG" = "no" ; then
1167 ifelse([$4], , [AC_MSG_ERROR([
1168 *** The pkg-config script could not be found. Make sure it is in your path, or give the full path to pkg-config with the PKG_CONFIG environment variable or --with-pkg-config-prog. Or see http://www.freedesktop.org/software/pkgconfig to get pkg-config.])], [$4])
1170 PKG_CONFIG_MIN_VERSION=0.9.0
1171 if $PKG_CONFIG --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
1172 AC_MSG_CHECKING(for $2)
1174 if $PKG_CONFIG --exists "$2" 2>&AS_MESSAGE_LOG_FD &&
1175 $1_CFLAGS=`$PKG_CONFIG --cflags "$2" 2>&AS_MESSAGE_LOG_FD` &&
1176 $1_LIBS=`$PKG_CONFIG --libs "$2" 2>&AS_MESSAGE_LOG_FD`; then
1183 $1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1184 $1_LIBS=`AS_ECHO(["$$1_LIBS"]) | sed -e 's,///*,/,g'`
1185 AC_MSG_RESULT([yes CFLAGS='$$1_CFLAGS' LIBS='$$1_LIBS'])
1191 ## If we have a custom action on failure, don't print errors, but
1192 ## do set a variable so people can do so. Do it in a subshell
1193 ## to capture any diagnostics in invoking pkg-config.
1194 $1_PKG_ERRORS=`($PKG_CONFIG --print-errors "$2") 2>&1`
1195 ifelse([$4], ,echo "$$1_PKG_ERRORS",)
1201 echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
1202 echo "*** See http://www.freedesktop.org/software/pkgconfig"
1206 if test $succeeded = yes; then
1207 ifelse([$3], , :, [$3])
1209 ifelse([$4], , [AC_MSG_ERROR([Library requirements ($2) not met; consider adjusting the PKG_CONFIG_PATH environment variable if your libraries are in a nonstandard prefix so pkg-config can find them.])], [$4])
1214 if test "${with_sound}" != "no"; then
1215 # Sound support for GNU/Linux and the free BSDs.
1216 AC_CHECK_HEADERS(machine/soundcard.h sys/soundcard.h soundcard.h,
1217 have_sound_header=yes)
1218 # Emulation library used on NetBSD.
1219 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1223 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1224 PKG_CHECK_MODULES(ALSA, $ALSA_MODULES, HAVE_ALSA=yes, HAVE_ALSA=no)
1225 if test $HAVE_ALSA = yes; then
1226 SAVE_CFLAGS="$CFLAGS"
1228 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1229 LIBS="$ALSA_LIBS $LIBS"
1230 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1231 emacs_alsa_normal=yes,
1232 emacs_alsa_normal=no)
1233 if test "$emacs_alsa_normal" != yes; then
1234 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1235 [[snd_lib_error_set_handler (0);]])],
1236 emacs_alsa_subdir=yes,
1237 emacs_alsa_subdir=no)
1238 if test "$emacs_alsa_subdir" != yes; then
1239 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1241 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1244 CFLAGS="$SAVE_CFLAGS"
1246 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1247 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1248 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1251 dnl Define HAVE_SOUND if we have sound support. We know it works and
1252 dnl compiles only on the specified platforms. For others, it
1253 dnl probably doesn't make sense to try.
1254 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1256 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1257 gnu-linux|freebsd|netbsd)
1258 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1263 AC_SUBST(CFLAGS_SOUND)
1266 dnl checks for header files
1267 AC_CHECK_HEADERS_ONCE(
1268 linux/version.h sys/systeminfo.h
1269 stdio_ext.h fcntl.h coff.h pty.h
1270 sys/vlimit.h sys/resource.h
1271 sys/utsname.h pwd.h utmp.h dirent.h util.h)
1273 AC_MSG_CHECKING(if personality LINUX32 can be set)
1274 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1275 emacs_cv_personality_linux32=yes,
1276 emacs_cv_personality_linux32=no)
1277 AC_MSG_RESULT($emacs_cv_personality_linux32)
1279 if test $emacs_cv_personality_linux32 = yes; then
1280 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1281 [Define to 1 if personality LINUX32 can be set.])
1284 dnl On Solaris 8 there's a compilation warning for term.h because
1285 dnl it doesn't define `bool'.
1286 AC_CHECK_HEADERS(term.h, , , -)
1288 AC_CHECK_DECLS([sys_siglist])
1289 if test $ac_cv_have_decl_sys_siglist != yes; then
1290 # For Tru64, at least:
1291 AC_CHECK_DECLS([__sys_siglist])
1292 if test $ac_cv_have_decl___sys_siglist = yes; then
1293 AC_DEFINE(sys_siglist, __sys_siglist,
1294 [Define to any substitute for sys_siglist.])
1299 dnl Check for speed_t typedef.
1300 AC_CACHE_CHECK(for speed_t, emacs_cv_speed_t,
1301 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <termios.h>]], [[speed_t x = 1;]])],
1302 emacs_cv_speed_t=yes, emacs_cv_speed_t=no)])
1303 if test $emacs_cv_speed_t = yes; then
1304 AC_DEFINE(HAVE_SPEED_T, 1,
1305 [Define to 1 if `speed_t' is declared by <termios.h>.])
1308 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1309 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1310 #if HAVE_SYS_SOCKET_H
1311 #include <sys/socket.h>
1313 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1314 #if HAVE_SYS_SOCKET_H
1315 #include <sys/socket.h>
1317 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1318 #if HAVE_SYS_SOCKET_H
1319 #include <sys/socket.h>
1322 dnl checks for structure members
1323 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1324 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1325 struct ifreq.ifr_addr,
1326 struct ifreq.ifr_addr.sa_len], , ,
1327 [AC_INCLUDES_DEFAULT
1328 #if HAVE_SYS_SOCKET_H
1329 #include <sys/socket.h>
1335 dnl Check for endianness.
1336 dnl AC_C_BIGENDIAN is done by gnulib.
1338 dnl check for Make feature
1339 dnl AC_PROG_MAKE_SET is done by Automake.
1344 dnl check for GNU Make if we have GCC and autodepend is on.
1345 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1346 AC_MSG_CHECKING([whether we are using GNU Make])
1348 testval=`${MAKE-make} --version 2>/dev/null | grep 'GNU Make'`
1349 if test "x$testval" != x; then
1352 ac_enable_autodepend=no
1354 AC_MSG_RESULT([$HAVE_GNU_MAKE])
1355 if test $HAVE_GNU_MAKE = yes; then
1356 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1357 SAVE_CFLAGS="$CFLAGS"
1358 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1359 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1360 CFLAGS="$SAVE_CFLAGS"
1361 test -f deps.d || ac_enable_autodepend=no
1363 AC_MSG_RESULT([$ac_enable_autodepend])
1365 if test $ac_enable_autodepend = yes; then
1366 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1367 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1368 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1369 deps_frag=autodeps.mk
1372 deps_frag=$srcdir/src/$deps_frag
1375 AC_SUBST_FILE(deps_frag)
1378 lisp_frag=$srcdir/src/lisp.mk
1379 AC_SUBST_FILE(lisp_frag)
1382 dnl checks for operating system services
1383 AC_SYS_LONG_FILE_NAMES
1385 #### Choose a window system.
1387 ## We leave window_system equal to none if
1388 ## we end up building without one. Any new window system should
1389 ## set window_system to an appropriate value and add objects to
1390 ## window-system-specific substs.
1394 if test "$no_x" != yes; then
1398 LD_SWITCH_X_SITE_RPATH=
1399 if test "${x_libraries}" != NONE; then
1400 if test -n "${x_libraries}"; then
1401 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1402 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1404 x_default_search_path=""
1405 x_search_path=${x_libraries}
1406 if test -z "${x_search_path}"; then
1407 x_search_path=/usr/lib
1409 for x_library in `echo ${x_search_path}: | \
1410 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1412 ${x_library}/X11/%L/%T/%N%C%S:\
1413 ${x_library}/X11/%l/%T/%N%C%S:\
1414 ${x_library}/X11/%T/%N%C%S:\
1415 ${x_library}/X11/%L/%T/%N%S:\
1416 ${x_library}/X11/%l/%T/%N%S:\
1417 ${x_library}/X11/%T/%N%S"
1418 if test x"${x_default_search_path}" = x; then
1419 x_default_search_path=${x_search_path}
1421 x_default_search_path="${x_search_path}:${x_default_search_path}"
1425 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1427 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1428 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1431 if test x"${x_includes}" = x; then
1432 bitmapdir=/usr/include/X11/bitmaps
1434 # accumulate include directories that have X11 bitmap subdirectories
1436 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1437 if test -d "${bmd}/X11/bitmaps"; then
1438 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1440 if test -d "${bmd}/bitmaps"; then
1441 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1444 if test ${bmd_acc} != "dummyval"; then
1445 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1452 tmp_CPPFLAGS="$CPPFLAGS"
1453 tmp_CFLAGS="$CFLAGS"
1454 CPPFLAGS="$CPPFLAGS -x objective-c"
1455 CFLAGS="$CFLAGS -x objective-c"
1456 TEMACS_LDFLAGS2="\${LDFLAGS}"
1458 if test "${with_ns}" != no; then
1459 if test "${opsys}" = darwin; then
1461 ns_appdir=`pwd`/nextstep/Emacs.app
1462 ns_appbindir=${ns_appdir}/Contents/MacOS
1463 ns_appresdir=${ns_appdir}/Contents/Resources
1464 ns_appsrc=Cocoa/Emacs.base
1465 elif test -f $GNUSTEP_CONFIG_FILE; then
1467 ns_appdir=`pwd`/nextstep/Emacs.app
1468 ns_appbindir=${ns_appdir}
1469 ns_appresdir=${ns_appdir}/Resources
1470 ns_appsrc=GNUstep/Emacs.base
1471 dnl FIXME sourcing this several times in subshells seems inefficient.
1472 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1473 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1474 dnl I seemed to need these as well with GNUstep-startup 0.25.
1475 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1476 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1477 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1478 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1479 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1480 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1481 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1482 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1483 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1487 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1488 dnl If they had chosen to either define it or not, we could have
1489 dnl just used AC_CHECK_DECL here.
1490 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1491 emacs_cv_objc_exceptions,
1492 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1493 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1497 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1498 if test $emacs_cv_objc_exceptions = yes; then
1499 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1500 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1501 [Define if GNUstep uses ObjC exceptions.])
1502 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1506 dnl This is only used while we test the NS headers, it gets reset below.
1507 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1509 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1510 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1511 files are missing or cannot be compiled.])])
1512 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1514 ns_have_nsinteger=yes,
1515 ns_have_nsinteger=no)
1516 if test $ns_have_nsinteger = yes; then
1517 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1520 AC_SUBST(TEMACS_LDFLAGS2)
1522 INSTALL_ARCH_INDEP_EXTRA=install-etc
1523 ns_self_contained=no
1526 if test "${HAVE_NS}" = yes; then
1527 if test "$with_toolkit_scroll_bars" = "no"; then
1528 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1531 window_system=nextstep
1532 # set up packaging dirs
1533 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1534 ns_self_contained=yes
1535 prefix=${ns_appresdir}
1536 exec_prefix=${ns_appbindir}
1537 dnl This one isn't really used, only archlibdir is.
1538 libexecdir="\${ns_appbindir}/libexec"
1539 archlibdir="\${ns_appbindir}/libexec"
1540 docdir="\${ns_appresdir}/etc"
1541 etcdir="\${ns_appresdir}/etc"
1542 dnl FIXME maybe set datarootdir instead.
1543 dnl That would also get applications, icons, man.
1544 infodir="\${ns_appresdir}/info"
1545 mandir="\${ns_appresdir}/man"
1546 lispdir="\${ns_appresdir}/lisp"
1547 leimdir="\${ns_appresdir}/leim"
1548 INSTALL_ARCH_INDEP_EXTRA=
1550 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o"
1552 CFLAGS="$tmp_CFLAGS"
1553 CPPFLAGS="$tmp_CPPFLAGS"
1554 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1555 AC_SUBST(ns_self_contained)
1557 AC_SUBST(NS_OBJC_OBJ)
1558 AC_SUBST(LIB_STANDARD)
1560 ## $window_system is now set to the window system we will
1568 case "${window_system}" in
1573 case "${with_x_toolkit}" in
1574 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1575 motif ) USE_X_TOOLKIT=MOTIF ;;
1577 term_header=gtkutil.h
1578 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1579 dnl USE_X_TOOLKIT is set.
1580 USE_X_TOOLKIT=none ;;
1581 gtk2 ) with_gtk2=yes
1582 term_header=gtkutil.h
1583 USE_X_TOOLKIT=none ;;
1584 gtk3 ) with_gtk3=yes
1585 term_header=gtkutil.h
1586 USE_X_TOOLKIT=none ;;
1587 no ) USE_X_TOOLKIT=none ;;
1588 dnl If user did not say whether to use a toolkit, make this decision later:
1589 dnl use the toolkit if we have gtk, or X11R5 or newer.
1590 * ) USE_X_TOOLKIT=maybe ;;
1594 term_header=nsterm.h
1598 if test -n "${term_header}"; then
1599 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
1600 [Define to the header for the built-in window system.])
1603 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1604 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1605 if test "$HAVE_XSERVER" = true ||
1606 test -n "$DISPLAY" ||
1607 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1608 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1609 were found. You should install the relevant development files for X
1610 and for the toolkit you want, such as Gtk+, Lesstif or Motif. Also make
1611 sure you have development files for image handling, i.e.
1612 tiff, gif, jpeg, png and xpm.
1613 If you are sure you want Emacs compiled without X window support, pass
1619 ### If we're using X11, we should use the X menu package.
1622 yes ) HAVE_MENUS=yes ;;
1625 # Does the opsystem file prohibit the use of the GNU malloc?
1626 # Assume not, until told otherwise.
1630 [whether malloc is Doug Lea style],
1631 [emacs_cv_var_doug_lea_malloc],
1634 [[#include <malloc.h>
1635 static void hook (void) {}]],
1636 [[malloc_set_state (malloc_get_state ());
1637 __after_morecore_hook = hook;
1638 __malloc_initialize_hook = hook;]])],
1639 [emacs_cv_var_doug_lea_malloc=yes],
1640 [emacs_cv_var_doug_lea_malloc=no])])
1641 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1644 dnl See comments in aix4-2.h about maybe using system malloc there.
1647 ## darwin ld insists on the use of malloc routines in the System framework.
1648 darwin|sol2-10) system_malloc=yes ;;
1651 if test "${system_malloc}" = "yes"; then
1652 AC_DEFINE(SYSTEM_MALLOC, 1, [Define to use system malloc.])
1655 (The GNU allocators don't work with this system configuration.)"
1659 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1660 VMLIMIT_OBJ=vm-limit.o
1662 AC_SUBST(GMALLOC_OBJ)
1663 AC_SUBST(VMLIMIT_OBJ)
1665 if test "$doug_lea_malloc" = "yes" ; then
1666 if test "$GNU_MALLOC" = yes ; then
1668 (Using Doug Lea's new malloc from the GNU C Library.)"
1670 AC_DEFINE(DOUG_LEA_MALLOC, 1,
1671 [Define to 1 if you are using the GNU C Library.])
1673 ## Use mmap directly for allocating larger buffers.
1674 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
1675 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
1676 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
1678 gnu*) REL_ALLOC=no ;;
1682 if test x"${REL_ALLOC}" = x; then
1683 REL_ALLOC=${GNU_MALLOC}
1686 use_mmap_for_buffers=no
1688 cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
1692 if test $use_mmap_for_buffers = yes; then
1693 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
1697 LIBS="$LIBS_SYSTEM $LIBS"
1699 dnl If found, this defines HAVE_LIBDNET, which m/pmax.h checks,
1700 dnl and also adds -ldnet to LIBS, which Autoconf uses for checks.
1701 AC_CHECK_LIB(dnet, dnet_ntoa)
1702 dnl This causes -lresolv to get used in subsequent tests,
1703 dnl which causes failures on some systems such as HPUX 9.
1704 dnl AC_CHECK_LIB(resolv, gethostbyname)
1706 dnl FIXME replace main with a function we actually want from this library.
1707 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
1709 dnl Check if pthreads is available.
1711 AC_CHECK_HEADERS_ONCE(pthread.h)
1712 if test "$ac_cv_header_pthread_h"; then
1713 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
1714 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
1715 dnl testing for pthread_self if Emacs uses gmalloc.c.
1716 if test "$GMALLOC_OBJ" = gmalloc.o; then
1717 emacs_pthread_function=pthread_atfork
1719 emacs_pthread_function=pthread_self
1721 AC_CHECK_LIB(pthread, $emacs_pthread_function, HAVE_PTHREAD=yes)
1723 if test "$HAVE_PTHREAD" = yes; then
1724 case "${canonical}" in
1726 *) LIB_PTHREAD="-lpthread"
1727 LIBS="$LIB_PTHREAD $LIBS" ;;
1729 AC_DEFINE(HAVE_PTHREAD, 1, [Define to 1 if you have pthread (-lpthread).])
1731 AC_SUBST([LIB_PTHREAD])
1733 AC_CHECK_LIB(pthreads, cma_open)
1735 ## Note: when using cpp in s/aix4.2.h, this definition depended on
1736 ## HAVE_LIBPTHREADS. That was not defined earlier in configure when
1737 ## the system file was sourced. Hence the value of LIBS_SYSTEM
1738 ## added to LIBS in configure would never contain the pthreads part,
1739 ## but the value used in Makefiles might. FIXME?
1741 ## -lpthreads seems to be necessary for Xlib in X11R6, and should
1742 ## be harmless on older versions of X where it happens to exist.
1743 test "$opsys" = "aix4-2" && \
1744 test $ac_cv_lib_pthreads_cma_open = yes && \
1745 LIBS_SYSTEM="$LIBS_SYSTEM -lpthreads"
1747 dnl Check for need for bigtoc support on IBM AIX
1751 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1753 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1754 *) gdb_cv_bigtoc=-bbigtoc ;;
1757 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1758 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
1763 # Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
1764 # used for the tests that follow. We set them back to REAL_CFLAGS and
1765 # REAL_CPPFLAGS later on.
1767 REAL_CFLAGS="$CFLAGS"
1768 REAL_CPPFLAGS="$CPPFLAGS"
1770 if test "${HAVE_X11}" = "yes"; then
1771 DEFS="$C_SWITCH_X_SITE $DEFS"
1772 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
1774 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
1775 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
1777 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
1778 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
1779 # but it's more convenient here to set LD_RUN_PATH since this
1780 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
1781 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
1782 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
1786 if test "${opsys}" = "gnu-linux"; then
1787 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
1788 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1789 [[XOpenDisplay ("foo");]])],
1790 [xgnu_linux_first_failure=no],
1791 [xgnu_linux_first_failure=yes])
1792 if test "${xgnu_linux_first_failure}" = "yes"; then
1793 OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
1794 OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
1795 OLD_CPPFLAGS="$CPPFLAGS"
1797 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
1798 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
1799 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
1800 LIBS="$LIBS -b i486-linuxaout"
1801 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1802 [[XOpenDisplay ("foo");]])],
1803 [xgnu_linux_second_failure=no],
1804 [xgnu_linux_second_failure=yes])
1805 if test "${xgnu_linux_second_failure}" = "yes"; then
1806 # If we get the same failure with -b, there is no use adding -b.
1807 # So take it out. This plays safe.
1808 LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
1809 C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
1810 CPPFLAGS="$OLD_CPPFLAGS"
1821 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
1822 # header files included from there.
1823 AC_MSG_CHECKING(for Xkb)
1824 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
1825 #include <X11/XKBlib.h>]],
1826 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
1827 emacs_xkb=yes, emacs_xkb=no)
1828 AC_MSG_RESULT($emacs_xkb)
1829 if test $emacs_xkb = yes; then
1830 AC_DEFINE(HAVE_XKBGETKEYBOARD, 1, [Define to 1 if you have the XkbGetKeyboard function.])
1833 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
1834 XScreenNumberOfScreen)
1837 if test "${window_system}" = "x11"; then
1838 AC_MSG_CHECKING(X11 version 6)
1839 AC_CACHE_VAL(emacs_cv_x11_version_6,
1840 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
1841 [[#if XlibSpecificationRelease < 6
1844 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
1845 if test $emacs_cv_x11_version_6 = yes; then
1846 AC_MSG_RESULT(6 or newer)
1847 AC_DEFINE(HAVE_X11R6, 1,
1848 [Define to 1 if you have the X11R6 or newer version of Xlib.])
1849 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
1850 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
1854 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
1855 [Define if you have usable X11R6-style XIM support.])
1859 AC_MSG_RESULT(before 6)
1864 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
1866 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes"; then
1867 if test "${with_rsvg}" != "no"; then
1868 RSVG_REQUIRED=2.11.0
1869 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
1871 PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, HAVE_RSVG=yes, :)
1872 AC_SUBST(RSVG_CFLAGS)
1875 if test $HAVE_RSVG = yes; then
1876 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
1877 CFLAGS="$CFLAGS $RSVG_CFLAGS"
1878 LIBS="$RSVG_LIBS $LIBS"
1884 if test "${HAVE_X11}" = "yes"; then
1885 if test "${with_imagemagick}" != "no"; then
1886 ## 6.2.8 is the earliest version known to work, but earlier versions
1887 ## might work - let us know if you find one.
1888 ## 6.0.7 does not work. See bug#7955.
1889 IMAGEMAGICK_MODULE="Wand >= 6.2.8"
1890 PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
1891 AC_SUBST(IMAGEMAGICK_CFLAGS)
1892 AC_SUBST(IMAGEMAGICK_LIBS)
1894 if test $HAVE_IMAGEMAGICK = yes; then
1895 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
1896 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
1897 LIBS="$IMAGEMAGICK_LIBS $LIBS"
1898 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
1908 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
1911 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1913 dnl Checks for libraries.
1914 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1915 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
1916 AC_MSG_ERROR($GTK_PKG_ERRORS)
1918 if test "$pkg_check_gtk" = "yes"; then
1919 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
1920 GTK_OBJ=emacsgtkfixed.o
1921 term_header=gtkutil.h
1924 gtk3_pkg_errors="$GTK_PKG_ERRORS "
1928 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
1931 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1933 dnl Checks for libraries.
1934 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1935 if test "$pkg_check_gtk" = "no" &&
1936 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
1938 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
1942 if test x"$pkg_check_gtk" = xyes; then
1944 AC_SUBST(GTK_CFLAGS)
1946 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
1947 CFLAGS="$CFLAGS $GTK_CFLAGS"
1948 LIBS="$GTK_LIBS $LIBS"
1949 dnl Try to compile a simple GTK program.
1951 AC_CHECK_FUNCS(gtk_main, GTK_COMPILES=yes)
1952 if test "${GTK_COMPILES}" != "yes"; then
1953 if test "$USE_X_TOOLKIT" != "maybe"; then
1954 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
1958 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
1959 GTK_OBJ="gtkutil.o $GTK_OBJ"
1961 if $PKG_CONFIG --atleast-version=2.10 gtk+-2.0; then
1964 AC_MSG_WARN([[Your version of Gtk+ will have problems with
1965 closing open displays. This is no problem if you just use
1966 one display, but if you use more than one and close one of them
1976 if test "${HAVE_GTK}" = "yes"; then
1978 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
1979 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
1980 if test "$with_toolkit_scroll_bars" != no; then
1981 with_toolkit_scroll_bars=yes
1984 dnl Check if we have the old file selection dialog declared and
1985 dnl in the link library. In 2.x it may be in the library,
1986 dnl but not declared if deprecated featured has been selected out.
1987 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
1988 HAVE_GTK_FILE_SELECTION=no
1989 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
1990 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
1991 #include <gtk/gtk.h>])
1992 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
1993 AC_CHECK_FUNCS(gtk_file_selection_new)
1997 dnl Check for functions introduced in 2.14 and later.
1998 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
1999 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2000 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2001 gtk_orientable_set_orientation \
2002 gtk_window_set_has_resize_grip)
2004 term_header=gtkutil.h
2007 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2008 dnl other platforms.
2011 if test "${with_dbus}" = "yes"; then
2012 PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
2013 if test "$HAVE_DBUS" = yes; then
2014 LIBS="$LIBS $DBUS_LIBS"
2015 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2016 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2017 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2019 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2020 dbus_type_is_valid \
2021 dbus_validate_bus_name \
2022 dbus_validate_path \
2023 dbus_validate_interface \
2024 dbus_validate_member)
2030 dnl GSettings has been tested under GNU/Linux only.
2032 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2033 PKG_CHECK_MODULES(GSETTINGS, gio-2.0 >= 2.26, HAVE_GSETTINGS=yes, HAVE_GSETTINGS=no)
2034 if test "$HAVE_GSETTINGS" = "yes"; then
2035 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2036 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2037 SETTINGS_LIBS="$GSETTINGS_LIBS"
2041 dnl GConf has been tested under GNU/Linux only.
2042 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2044 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2045 PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
2046 if test "$HAVE_GCONF" = yes; then
2047 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2048 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2049 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2050 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2054 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2055 PKG_CHECK_MODULES(GOBJECT, gobject-2.0 >= 2.0, HAVE_GOBJECT=yes, HAVE_GOBJECT=no)
2056 if test "$HAVE_GOBJECT" = "yes"; then
2057 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2058 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2060 SAVE_CFLAGS="$CFLAGS"
2062 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2063 LIBS="$SETTINGS_LIBS $LIBS"
2064 AC_CHECK_FUNCS([g_type_init])
2065 CFLAGS="$SAVE_CFLAGS"
2068 AC_SUBST(SETTINGS_CFLAGS)
2069 AC_SUBST(SETTINGS_LIBS)
2072 dnl SELinux is available for GNU/Linux only.
2075 if test "${with_selinux}" = "yes"; then
2076 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2077 if test "$HAVE_LIBSELINUX" = yes; then
2078 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2079 LIBSELINUX_LIBS=-lselinux
2082 AC_SUBST(LIBSELINUX_LIBS)
2085 HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=no
2086 if test "${with_gnutls}" = "yes" ; then
2087 PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6], HAVE_GNUTLS=yes, HAVE_GNUTLS=no)
2088 if test "${HAVE_GNUTLS}" = "yes"; then
2089 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2092 CFLAGS="$CFLAGS $LIBGNUTLS_CFLAGS"
2093 LIBS="$LIBGNUTLS_LIBS $LIBS"
2094 AC_CHECK_FUNCS(gnutls_certificate_set_verify_function, HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=yes)
2096 if test "${HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY}" = "yes"; then
2097 AC_DEFINE(HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY, 1, [Define if using GnuTLS certificate verification callbacks.])
2101 AC_SUBST(LIBGNUTLS_LIBS)
2102 AC_SUBST(LIBGNUTLS_CFLAGS)
2104 dnl Do not put whitespace before the #include statements below.
2105 dnl Older compilers (eg sunos4 cc) choke on it.
2108 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2109 if test "$with_xaw3d" != no; then
2110 AC_CACHE_VAL(emacs_cv_xaw3d,
2111 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2112 #include <X11/Intrinsic.h>
2113 #include <X11/Xaw3d/Simple.h>]],
2115 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2116 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2117 emacs_cv_xaw3d=no)])
2121 if test $emacs_cv_xaw3d = yes; then
2122 AC_MSG_CHECKING(for xaw3d)
2123 AC_MSG_RESULT([yes; using Lucid toolkit])
2127 AC_DEFINE(HAVE_XAW3D, 1,
2128 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2130 AC_MSG_CHECKING(for xaw3d)
2132 AC_MSG_CHECKING(for libXaw)
2133 AC_CACHE_VAL(emacs_cv_xaw,
2134 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2135 #include <X11/Intrinsic.h>
2136 #include <X11/Xaw/Simple.h>]],
2140 if test $emacs_cv_xaw = yes; then
2141 AC_MSG_RESULT([yes; using Lucid toolkit])
2144 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2145 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2147 AC_MSG_ERROR([No X toolkit could be found.
2148 If you are sure you want Emacs compiled without an X toolkit, pass
2150 to configure. Otherwise, install the development libraries for the toolkit
2151 that you want to use (e.g. Gtk+) and re-run configure.])
2156 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2159 if test "${USE_X_TOOLKIT}" != "none"; then
2160 AC_MSG_CHECKING(X11 toolkit version)
2161 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2162 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2163 [[#if XtSpecificationRelease < 6
2166 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2167 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2168 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2169 AC_MSG_RESULT(6 or newer)
2170 AC_DEFINE(HAVE_X11XTR6, 1,
2171 [Define to 1 if you have the X11R6 or newer version of Xt.])
2172 LIBXTR6="-lSM -lICE"
2174 ## Use libw.a along with X11R6 Xt.
2175 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2178 AC_MSG_RESULT(before 6)
2181 dnl If using toolkit, check whether libXmu.a exists.
2182 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2184 if test x$HAVE_X11XTR6 = xyes; then
2185 LIBS="-lXt -lSM -lICE $LIBS"
2189 AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
2190 test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
2191 dnl ac_cv_lib_Xmu_XmuConvertStandardSelection is also referenced below.
2195 dnl FIXME the logic here seems weird, but this is what cpp was doing.
2196 dnl Why not just test for libxmu in the normal way?
2199 ## These systems don't supply Xmu.
2201 test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
2206 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
2207 if test "${HAVE_X11}" = "yes"; then
2208 if test "${USE_X_TOOLKIT}" != "none"; then
2209 AC_CHECK_LIB(Xext, XShapeQueryExtension)
2214 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2215 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2216 if test -d /usr/include/openmotif; then
2217 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2218 emacs_cv_openmotif=yes
2219 case "$canonical" in
2220 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2221 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2224 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2227 emacs_cv_openmotif=no
2229 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2230 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2231 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2234 Motif version prior to 2.1.
2236 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2237 if test $emacs_cv_motif_version_2_1 = yes; then
2238 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2239 if test x$emacs_cv_openmotif = xyes; then
2240 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2243 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2244 # We put this in CFLAGS temporarily to precede other -I options
2245 # that might be in CFLAGS temporarily.
2246 # We put this in CPPFLAGS where it precedes the other -I options.
2247 OLD_CPPFLAGS=$CPPFLAGS
2249 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2250 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2251 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2253 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2254 if test $emacs_cv_lesstif = yes; then
2255 # Make sure this -I option remains in CPPFLAGS after it is set
2256 # back to REAL_CPPFLAGS.
2257 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2258 # have those other -I options anyway. Ultimately, having this
2259 # directory ultimately in CPPFLAGS will be enough.
2260 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2261 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2264 CPPFLAGS=$OLD_CPPFLAGS
2267 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2268 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2271 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2272 dnl using Motif or Xaw3d is available, and unless
2273 dnl --with-toolkit-scroll-bars=no was specified.
2275 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2276 [Define to 1 if we should use toolkit scroll bars.])dnl
2277 USE_TOOLKIT_SCROLL_BARS=no
2278 if test "${with_toolkit_scroll_bars}" != "no"; then
2279 if test "${USE_X_TOOLKIT}" != "none"; then
2280 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2281 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2283 USE_TOOLKIT_SCROLL_BARS=yes
2284 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2285 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2286 USE_TOOLKIT_SCROLL_BARS=yes
2288 elif test "${HAVE_GTK}" = "yes"; then
2289 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2290 USE_TOOLKIT_SCROLL_BARS=yes
2291 elif test "${HAVE_NS}" = "yes"; then
2292 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2293 USE_TOOLKIT_SCROLL_BARS=yes
2297 dnl See if XIM is available.
2298 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2299 #include <X11/Xlib.h>
2300 #include <X11/Xresource.h>]],
2301 [[XIMProc callback;]])],
2303 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2306 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2308 if test "${with_xim}" != "no"; then
2309 AC_DEFINE(USE_XIM, 1,
2310 [Define to 1 if we should use XIM, if it is available.])
2314 if test "${HAVE_XIM}" != "no"; then
2316 if test "$GCC" = yes; then
2317 CFLAGS="$CFLAGS --pedantic-errors"
2319 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2320 #include <X11/Xlib.h>
2321 #include <X11/Xresource.h>]],
2327 XPointer *client_data;
2329 /* If we're not using GCC, it's probably not XFree86, and this is
2330 probably right, but we can't use something like --pedantic-errors. */
2331 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2332 char*, XIMProc, XPointer*);
2334 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2336 [emacs_cv_arg6_star=yes])
2337 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2338 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2339 either XPointer or XPointer*.])dnl
2340 if test "$emacs_cv_arg6_star" = yes; then
2341 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2343 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2348 ### Start of font-backend (under any platform) section.
2349 # (nothing here yet -- this is a placeholder)
2350 ### End of font-backend (under any platform) section.
2352 ### Start of font-backend (under X11) section.
2353 if test "${HAVE_X11}" = "yes"; then
2354 PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
2356 ## Use -lXft if available, unless `--with-xft=no'.
2358 if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2361 if test "x${with_xft}" != "xno"; then
2363 PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
2364 ## Because xftfont.c uses XRenderQueryExtension, we also
2365 ## need to link to -lXrender.
2367 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2368 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2369 OLD_CPPFLAGS="$CPPFLAGS"
2370 OLD_CFLAGS="$CFLAGS"
2372 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2373 CFLAGS="$CFLAGS $XFT_CFLAGS"
2374 XFT_LIBS="-lXrender $XFT_LIBS"
2375 LIBS="$XFT_LIBS $LIBS"
2376 AC_CHECK_HEADER(X11/Xft/Xft.h,
2377 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS))
2379 if test "${HAVE_XFT}" = "yes"; then
2380 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2382 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2384 CPPFLAGS="$OLD_CPPFLAGS"
2385 CFLAGS="$OLD_CFLAGS"
2387 fi # "${HAVE_XFT}" = "yes"
2388 fi # "$HAVE_XFT" != no
2389 fi # "x${with_xft}" != "xno"
2391 ## We used to allow building with FreeType and without Xft.
2392 ## However, the ftx font backend driver is not in good shape.
2393 if test "$HAVE_XFT" != "yes"; then
2394 dnl For the "Does Emacs use" message at the end.
2398 dnl Strict linkers fail with
2399 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2400 dnl if -lfreetype is not specified.
2401 dnl The following is needed to set FREETYPE_LIBS.
2402 PKG_CHECK_MODULES(FREETYPE, freetype2, HAVE_FREETYPE=yes,
2405 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2409 if test "${HAVE_FREETYPE}" = "yes"; then
2410 AC_DEFINE(HAVE_FREETYPE, 1,
2411 [Define to 1 if using the freetype and fontconfig libraries.])
2412 if test "${with_libotf}" != "no"; then
2413 PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
2415 if test "$HAVE_LIBOTF" = "yes"; then
2416 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2417 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2418 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2419 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2420 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2421 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2422 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2426 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2427 dnl Does the new font backend require it, or can it work without it?
2431 if test "${HAVE_LIBOTF}" = yes; then
2432 if test "${with_m17n_flt}" != "no"; then
2433 PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
2434 if test "$HAVE_M17N_FLT" = "yes"; then
2435 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2446 ### End of font-backend (under X11) section.
2448 AC_SUBST(FREETYPE_CFLAGS)
2449 AC_SUBST(FREETYPE_LIBS)
2450 AC_SUBST(FONTCONFIG_CFLAGS)
2451 AC_SUBST(FONTCONFIG_LIBS)
2452 AC_SUBST(LIBOTF_CFLAGS)
2453 AC_SUBST(LIBOTF_LIBS)
2454 AC_SUBST(M17N_FLT_CFLAGS)
2455 AC_SUBST(M17N_FLT_LIBS)
2457 ### Use -lXpm if available, unless `--with-xpm=no'.
2460 if test "${HAVE_X11}" = "yes"; then
2461 if test "${with_xpm}" != "no"; then
2462 AC_CHECK_HEADER(X11/xpm.h,
2463 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2464 if test "${HAVE_XPM}" = "yes"; then
2465 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2466 AC_EGREP_CPP(no_return_alloc_pixels,
2467 [#include "X11/xpm.h"
2468 #ifndef XpmReturnAllocPixels
2469 no_return_alloc_pixels
2471 ], HAVE_XPM=no, HAVE_XPM=yes)
2473 if test "${HAVE_XPM}" = "yes"; then
2481 if test "${HAVE_XPM}" = "yes"; then
2482 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2488 ### Use -ljpeg if available, unless `--with-jpeg=no'.
2491 if test "${HAVE_X11}" = "yes"; then
2492 if test "${with_jpeg}" != "no"; then
2493 dnl Checking for jpeglib.h can lose because of a redefinition of
2495 AC_CHECK_HEADER(jerror.h,
2496 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
2499 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2500 if test "${HAVE_JPEG}" = "yes"; then
2501 AC_DEFINE(HAVE_JPEG)
2502 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2503 [#include <jpeglib.h>
2504 version=JPEG_LIB_VERSION
2506 [AC_DEFINE(HAVE_JPEG)],
2507 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2510 if test "${HAVE_JPEG}" = "yes"; then
2516 ### Use -lpng if available, unless `--with-png=no'.
2519 if test "${HAVE_X11}" = "yes"; then
2520 if test "${with_png}" != "no"; then
2521 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
2522 # in /usr/include/libpng.
2523 AC_CHECK_HEADERS(png.h libpng/png.h, break)
2524 if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
2525 AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
2529 if test "${HAVE_PNG}" = "yes"; then
2530 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2531 LIBPNG="-lpng -lz -lm"
2533 AC_CHECK_DECL(png_longjmp,
2535 [AC_DEFINE(PNG_DEPSTRUCT, [],
2536 [Define to empty to suppress deprecation warnings when building
2537 with --enable-gcc-warnings and with libpng versions before 1.5,
2538 which lack png_longjmp.])],
2539 [[#ifdef HAVE_LIBPNG_PNG_H
2540 # include <libpng/png.h>
2549 ### Use -ltiff if available, unless `--with-tiff=no'.
2552 if test "${HAVE_X11}" = "yes"; then
2553 if test "${with_tiff}" != "no"; then
2554 AC_CHECK_HEADER(tiffio.h,
2556 # At least one tiff package requires the jpeg library.
2557 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
2558 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
2561 if test "${HAVE_TIFF}" = "yes"; then
2562 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
2563 dnl FIXME -lz -lm, as per libpng?
2569 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
2572 if test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no"; then
2573 AC_CHECK_HEADER(gif_lib.h,
2574 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
2575 # Earlier versions can crash Emacs.
2576 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])
2578 if test "$HAVE_GIF" = yes; then
2580 elif test "$HAVE_GIF" = maybe; then
2581 # If gif_lib.h but no libgif, try libungif.
2582 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
2583 test "$HAVE_GIF" = yes && LIBGIF=-lungif
2586 if test "${HAVE_GIF}" = "yes"; then
2587 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
2592 dnl Check for required libraries.
2593 if test "${HAVE_X11}" = "yes"; then
2596 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
2597 MISSING="libXpm" && WITH_NO="--with-xpm=no"
2598 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
2599 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
2600 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
2601 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
2602 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
2603 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
2604 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
2605 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
2607 if test "X${MISSING}" != X; then
2608 AC_MSG_ERROR([The following required libraries were not found:
2610 Maybe some development libraries/packages are missing?
2611 If you don't want to link with them give
2613 as options to configure])
2617 ### Use -lgpm if available, unless `--with-gpm=no'.
2620 if test "${with_gpm}" != "no"; then
2621 AC_CHECK_HEADER(gpm.h,
2622 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
2624 if test "${HAVE_GPM}" = "yes"; then
2625 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
2631 dnl Check for malloc/malloc.h on darwin
2632 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
2635 ### Use NeXTstep API to implement GUI.
2636 if test "${HAVE_NS}" = "yes"; then
2637 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
2638 if test "${NS_IMPL_COCOA}" = "yes"; then
2639 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
2641 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
2642 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
2643 # See also .m.o rule in Makefile.in */
2644 # FIXME: are all these flags really needed? Document here why. */
2645 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
2646 ## Extra CFLAGS applied to src/*.m files.
2647 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"
2649 # We also have mouse menus.
2655 ### Use session management (-lSM -lICE) if available
2658 if test "${HAVE_X11}" = "yes"; then
2659 AC_CHECK_HEADER(X11/SM/SMlib.h,
2660 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
2662 if test "${HAVE_X_SM}" = "yes"; then
2663 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
2667 *) LIBS="$LIBXSM $LIBS" ;;
2673 ### Use libxml (-lxml2) if available
2675 if test "${with_xml2}" != "no"; then
2676 ### I'm not sure what the version number should be, so I just guessed.
2677 PKG_CHECK_MODULES(LIBXML2, libxml-2.0 > 2.6.17, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2678 if test "${HAVE_LIBXML2}" = "yes"; then
2679 LIBS="$LIBXML2_LIBS $LIBS"
2680 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2681 if test "${HAVE_LIBXML2}" = "yes"; then
2682 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
2689 AC_SUBST(LIBXML2_LIBS)
2690 AC_SUBST(LIBXML2_CFLAGS)
2692 # If netdb.h doesn't declare h_errno, we must declare it by hand.
2693 AC_CACHE_CHECK(whether netdb declares h_errno,
2694 emacs_cv_netdb_declares_h_errno,
2695 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
2696 [[return h_errno;]])],
2697 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
2698 if test $emacs_cv_netdb_declares_h_errno = yes; then
2699 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
2702 # sqrt and other floating-point functions such as fmod and frexp
2703 # are found in -lm on most systems.
2704 AC_CHECK_LIB(m, sqrt)
2706 # Check for mail-locking functions in a "mail" library. Probably this should
2707 # have the same check as for liblockfile below.
2708 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
2709 if test $have_mail = yes; then
2711 LIBS="$LIBS_MAIL $LIBS"
2712 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
2716 dnl Debian, at least:
2717 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
2718 if test $have_lockfile = yes; then
2719 LIBS_MAIL=-llockfile
2720 LIBS="$LIBS_MAIL $LIBS"
2721 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
2723 # If we have the shared liblockfile, assume we must use it for mail
2724 # locking (e.g. Debian). If we couldn't link against liblockfile
2725 # (no liblockfile.a installed), ensure that we don't need to.
2726 dnl This works for files generally, not just executables.
2727 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
2728 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
2729 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
2730 if test $ac_cv_prog_liblockfile = yes; then
2731 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
2732 This probably means that movemail could lose mail.
2733 There may be a `development' package to install containing liblockfile.])
2736 AC_CHECK_HEADERS_ONCE(maillock.h)
2739 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
2740 ## interlock access to the mail spool. The alternative is a lock file named
2741 ## /usr/spool/mail/$USER.lock.
2744 aix4-2) mail_lock="lockf" ;;
2746 gnu|freebsd|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
2748 ## On GNU/Linux systems, both methods are used by various mail programs.
2749 ## I assume most people are using newer mailers that have heard of flock.
2750 ## Change this if you need to.
2751 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
2752 ## configure gets the right answers, and that means *NOT* using flock.
2753 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
2754 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
2755 ## Debian maintainer hasn't provided a clean fix for Emacs.
2756 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
2757 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
2758 ## correct logic. -- fx
2759 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
2760 ## liblockfile is a Free Software replacement for libmail, used on
2761 ## Debian systems and elsewhere. -rfr.
2764 if test $have_mail = yes || test $have_lockfile = yes; then
2765 test $ac_cv_header_maillock_h = yes && mail_lock=no
2771 case "$mail_lock" in
2772 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
2774 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
2776 *) BLESSMAIL_TARGET="need-blessmail" ;;
2778 AC_SUBST(BLESSMAIL_TARGET)
2781 AC_CHECK_FUNCS(gethostname \
2782 closedir getrusage get_current_dir_name \
2784 fpathconf select euidaccess getpagesize setlocale \
2785 utimes getrlimit setrlimit setpgid getcwd shutdown getaddrinfo \
2786 __fpending strsignal setitimer \
2787 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
2788 gai_strerror mkstemp getline getdelim fsync sync \
2789 difftime posix_memalign \
2790 getpwent endpwent getgrent endgrent \
2792 cfmakeraw cfsetspeed copysign __executable_start)
2794 dnl getwd appears to be buggy on SVR4.2, so we don't use it.
2795 if test $opsys = unixware; then
2796 dnl In case some other test ends up checking for getwd.
2797 AC_DEFINE(BROKEN_GETWD, 1, [Define if getwd should not be used.])
2799 AC_CHECK_FUNCS(getwd)
2802 ## Eric Backus <ericb@lsid.hp.com> says, HP-UX 9.x on HP 700 machines
2803 ## has a broken `rint' in some library versions including math library
2804 ## version number A.09.05.
2805 ## You can fix the math library by installing patch number PHSS_4630.
2806 ## But we can fix it more reliably for Emacs by just not using rint.
2807 ## We also skip HAVE_RANDOM - see comments in src/conf_post.h.
2810 *) AC_CHECK_FUNCS(random rint) ;;
2813 dnl Cannot use AC_CHECK_FUNCS
2814 AC_CACHE_CHECK([for __builtin_unwind_init],
2815 emacs_cv_func___builtin_unwind_init,
2816 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
2817 emacs_cv_func___builtin_unwind_init=yes,
2818 emacs_cv_func___builtin_unwind_init=no)])
2819 if test $emacs_cv_func___builtin_unwind_init = yes; then
2820 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
2821 [Define to 1 if you have the `__builtin_unwind_init' function.])
2824 AC_CHECK_HEADERS_ONCE(sys/un.h)
2831 AC_CHECK_FUNCS(grantpt)
2833 # PTY-related GNU extensions.
2834 AC_CHECK_FUNCS(getpt posix_openpt)
2836 # Check this now, so that we will NOT find the above functions in ncurses.
2837 # That is because we have not set up to link ncurses in lib-src.
2838 # It's better to believe a function is not available
2839 # than to expect to find it in ncurses.
2840 # Also we need tputs and friends to be able to build at all.
2841 AC_MSG_CHECKING([for library containing tputs])
2842 # Run a test program that contains a call to tputs, a call that is
2843 # never executed. This tests whether a pre-'main' dynamic linker
2844 # works with the library. It's too much trouble to actually call
2845 # tputs in the test program, due to portability hassles. When
2846 # cross-compiling, assume the test program will run if it links.
2847 AC_DEFUN([tputs_link_source], [
2849 [[extern void tputs (const char *, int, int (*)(int));
2850 int main (int argc, char **argv)
2853 tputs (argv[0], 0, 0);
2857 # Maybe curses should be tried earlier?
2858 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
2859 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
2861 if test -z "$tputs_library"; then
2865 LIBS_TERMCAP=-l$tputs_library
2867 LIBS="$LIBS_TERMCAP $LIBS"
2869 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
2870 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
2872 if test "X$msg" != Xno; then
2876 AC_MSG_RESULT([$msg])
2877 if test "X$msg" = Xno; then
2878 AC_MSG_ERROR([The required function `tputs' was not found in any library.
2879 The following libraries were tried (in order):
2880 libtinfo, libncurses, libterminfo, libtermcap, libcurses
2881 Please try installing whichever of these libraries is most appropriate
2882 for your system, together with its header files.
2883 For example, a libncurses-dev(el) or similar package.])
2886 ## Use termcap instead of terminfo?
2887 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
2889 ## FIXME? In the cases below where we unconditionally set
2890 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
2891 ## if that was found above to have tputs.
2892 ## Should we use the gnu* logic everywhere?
2894 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
2895 ## The ncurses library has been moved out of the System framework in
2896 ## Mac OS X 10.2. So if configure detects it, set the command-line
2897 ## option to use it.
2898 darwin) LIBS_TERMCAP="-lncurses" ;;
2900 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
2903 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
2904 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
2905 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
2906 [[#if __FreeBSD_version < 400000
2909 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
2911 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
2913 if test $emacs_cv_freebsd_terminfo = yes; then
2914 LIBS_TERMCAP="-lncurses"
2917 LIBS_TERMCAP="-ltermcap"
2922 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
2924 LIBS_TERMCAP="-ltermcap"
2928 openbsd) LIBS_TERMCAP="-lncurses" ;;
2930 ## hpux: Make sure we get select from libc rather than from libcurses
2931 ## because libcurses on HPUX 10.10 has a broken version of select.
2932 ## We used to use -lc -lcurses, but this may be cleaner.
2933 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
2934 # set that way, now it uses the default). Isn't this a contradiction?
2935 hpux*) LIBS_TERMCAP="-ltermcap" ;;
2939 TERMCAP_OBJ=tparam.o
2940 if test $TERMINFO = yes; then
2941 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
2942 TERMCAP_OBJ=terminfo.o
2944 AC_SUBST(LIBS_TERMCAP)
2945 AC_SUBST(TERMCAP_OBJ)
2948 # Do we have res_init, for detecting changes in /etc/resolv.conf?
2949 # On Darwin, res_init appears not to be useful: see bug#562 and
2950 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
2953 if test $opsys != darwin; then
2955 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
2956 #include <arpa/nameser.h>
2957 #include <resolv.h>]],
2958 [[return res_init();]])],
2959 have_res_init=yes, have_res_init=no)
2960 if test "$have_res_init" = no; then
2962 LIBS="$LIBS -lresolv"
2963 AC_MSG_CHECKING(for res_init with -lresolv)
2964 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
2965 #include <arpa/nameser.h>
2966 #include <resolv.h>]],
2967 [[return res_init();]])],
2968 have_res_init=yes, have_res_init=no)
2969 AC_MSG_RESULT($have_res_init)
2970 if test "$have_res_init" = yes ; then
2976 if test "$have_res_init" = yes; then
2977 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
2981 # Do we need the Hesiod library to provide the support routines?
2982 dnl FIXME? Should we be skipping this on Darwin too?
2984 if test "$with_hesiod" != no ; then
2985 # Don't set $LIBS here -- see comments above. FIXME which comments?
2986 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
2987 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
2988 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
2989 if test "$resolv" = yes ; then
2994 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
2995 hesiod=yes, :, $RESOLVLIB)])
2997 if test x"$hesiod" = xyes; then
2998 AC_DEFINE(HAVE_LIBHESIOD, 1,
2999 [Define to 1 if you have the hesiod library (-lhesiod).])
3005 # Do we need libresolv (due to res_init or Hesiod)?
3006 if test "$resolv" = yes && test $opsys != darwin; then
3007 AC_DEFINE(HAVE_LIBRESOLV, 1,
3008 [Define to 1 if you have the resolv library (-lresolv).])
3015 # These tell us which Kerberos-related libraries to use.
3022 if test "${with_kerberos}" != no; then
3023 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3024 if test $have_com_err = yes; then
3025 COM_ERRLIB=-lcom_err
3026 LIBS="$COM_ERRLIB $LIBS"
3027 AC_DEFINE(HAVE_LIBCOM_ERR, 1, [Define to 1 if you have the `com_err' library (-lcom_err).])
3029 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3030 if test $have_crypto = yes; then
3032 LIBS="$CRYPTOLIB $LIBS"
3033 AC_DEFINE(HAVE_LIBCRYPTO, 1, [Define to 1 if you have the `crypto' library (-lcrypto).])
3035 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3036 if test $have_k5crypto = yes; then
3037 CRYPTOLIB=-lk5crypto
3038 LIBS="$CRYPTOLIB $LIBS"
3039 AC_DEFINE(HAVE_LIBK5CRYPTO, 1, [Define to 1 if you have the `k5crypto' library (-lk5crypto).])
3041 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3042 if test $have_krb5=yes; then
3044 LIBS="$KRB5LIB $LIBS"
3045 AC_DEFINE(HAVE_LIBKRB5, 1, [Define to 1 if you have the `krb5' library (-lkrb5).])
3047 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3048 if test "${with_kerberos5}" = no; then
3049 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3050 if test $have_des425 = yes; then
3052 LIBS="$DESLIB $LIBS"
3053 AC_DEFINE(HAVE_LIBDES425, 1, [Define to 1 if you have the `des425' library (-ldes425).])
3055 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3056 if test $have_des = yes; then
3058 LIBS="$DESLIB $LIBS"
3059 AC_DEFINE(HAVE_LIBDES, 1, [Define to 1 if you have the `des' library (-ldes).])
3062 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3063 if test $have_krb4 = yes; then
3065 LIBS="$KRB4LIB $LIBS"
3066 AC_DEFINE(HAVE_LIBKRB4, 1, [Define to 1 if you have the `krb4' library (-lkrb4).])
3068 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3069 if test $have_krb = yes; then
3071 LIBS="$KRB4LIB $LIBS"
3072 AC_DEFINE(HAVE_LIBKRB, 1, [Define to 1 if you have the `krb' library (-lkrb).])
3077 if test "${with_kerberos5}" != no; then
3078 AC_CHECK_HEADERS(krb5.h,
3079 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3080 [#include <krb5.h>])])
3082 AC_CHECK_HEADERS(des.h,,
3083 [AC_CHECK_HEADERS(kerberosIV/des.h,,
3084 [AC_CHECK_HEADERS(kerberos/des.h)])])
3085 AC_CHECK_HEADERS(krb.h,,
3086 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3087 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3089 AC_CHECK_HEADERS(com_err.h)
3092 AC_SUBST(COM_ERRLIB)
3098 AC_CHECK_FUNCS_ONCE(tzset)
3099 AC_MSG_CHECKING(whether localtime caches TZ)
3100 AC_CACHE_VAL(emacs_cv_localtime_cache,
3101 [if test x$ac_cv_func_tzset = xyes; then
3102 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3103 char TZ_GMT0[] = "TZ=GMT0";
3104 char TZ_PST8[] = "TZ=PST8";
3107 time_t now = time ((time_t *) 0);
3108 int hour_GMT0, hour_unset;
3109 if (putenv (TZ_GMT0) != 0)
3111 hour_GMT0 = localtime (&now)->tm_hour;
3113 hour_unset = localtime (&now)->tm_hour;
3114 if (putenv (TZ_PST8) != 0)
3116 if (localtime (&now)->tm_hour == hour_GMT0)
3119 if (localtime (&now)->tm_hour != hour_unset)
3122 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3123 [# If we have tzset, assume the worst when cross-compiling.
3124 emacs_cv_localtime_cache=yes])
3126 # If we lack tzset, report that localtime does not cache TZ,
3127 # since we can't invalidate the cache if we don't have tzset.
3128 emacs_cv_localtime_cache=no
3130 AC_MSG_RESULT($emacs_cv_localtime_cache)
3131 if test $emacs_cv_localtime_cache = yes; then
3132 AC_DEFINE(LOCALTIME_CACHE, 1,
3133 [Define to 1 if localtime caches TZ.])
3137 AC_CHECK_FUNC(socket, , ok_so_far=no)
3138 if test $ok_so_far = yes; then
3139 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3141 if test $ok_so_far = yes; then
3142 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3144 if test $ok_so_far = yes; then
3145 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3146 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3147 [Define to 1 if you have inet sockets.])
3150 if test -f /usr/lpp/X11/bin/smt.exp; then
3151 AC_DEFINE(HAVE_AIX_SMT_EXP, 1,
3152 [Define to 1 if the file /usr/lpp/X11/bin/smt.exp exists.])
3155 AC_MSG_CHECKING(whether system supports dynamic ptys)
3156 if test -d /dev/pts && ls -d /dev/ptmx > /dev/null 2>&1 ; then
3158 AC_DEFINE(HAVE_DEV_PTMX, 1, [Define to 1 if dynamic ptys are supported.])
3165 AC_CHECK_FUNCS(snprintf)
3167 dnl Adapted from Haible's version.
3168 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3169 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3170 [[char* cs = nl_langinfo(CODESET);]])],
3171 emacs_cv_langinfo_codeset=yes,
3172 emacs_cv_langinfo_codeset=no)
3174 if test $emacs_cv_langinfo_codeset = yes; then
3175 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3176 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3181 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3182 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3183 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3184 if test "$emacs_cv_c_restrict_arr" = yes; then
3185 AC_DEFINE(__restrict_arr, __restrict,
3186 [Define to compiler's equivalent of C99 restrict keyword in array
3187 declarations. Define as empty for no equivalent.])
3190 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3191 dnl how the tty code is related to POSIX and/or other versions of termios.
3192 dnl The following looks like a useful start.
3194 dnl AC_SYS_POSIX_TERMIOS
3195 dnl if test $ac_cv_sys_posix_termios = yes; then
3196 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3197 dnl and macros for terminal control.])
3198 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3201 dnl Turned on June 1996 supposing nobody will mind it.
3202 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3203 in the full name stands for the login id.])
3205 dnl Every platform that uses configure (ie every non-MS platform)
3206 dnl supports this. There is a create-lockfiles option you can
3207 dnl customize if you do not want the lock files to be written.
3208 dnl So it is not clear that this #define still needs to exist.
3209 AC_DEFINE(CLASH_DETECTION, 1, [Define if you want lock files to be written,
3210 so that Emacs can tell instantly when you try to modify a file that
3211 someone else has modified in his/her Emacs.])
3213 dnl Everybody supports this, except MS.
3214 dnl Seems like the kind of thing we should be testing for, though.
3215 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3216 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3218 dnl Everybody supports this, except MS-DOS.
3219 dnl Seems like the kind of thing we should be testing for, though.
3220 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3221 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3222 4.2-compatible sockets.])
3224 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3226 AC_DEFINE(NULL_DEVICE, ["/dev/null"], [Name of the file to open to get
3227 a null file, or a data sink.])
3229 AC_DEFINE(SEPCHAR, [':'], [Character that separates PATH elements.])
3231 dnl Everybody supports this, except MS-DOS.
3232 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3234 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3237 AC_DEFINE(DIRECTORY_SEP, ['/'],
3238 [Character that separates directories in a file name.])
3240 dnl Only used on MS platforms.
3241 AH_TEMPLATE(DEVICE_SEP, [Character that separates a device in a file name.])
3243 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
3244 [Returns true if character is a device separator.])
3246 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
3247 [Returns true if character is a directory separator.])
3249 dnl On MS, this also accepts IS_DEVICE_SEP.
3250 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
3251 [Returns true if character is any form of separator.])
3254 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
3258 dnl Unfortunately without libXmu we cannot support EditRes.
3259 if test x$ac_cv_lib_Xmu_XmuConvertStandardSelection != xyes; then
3260 AC_DEFINE(NO_EDITRES, 1)
3265 dnl Assar Westerlund <assar@sics.se> says this is necessary for
3266 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
3267 AC_DEFINE(NO_EDITRES, 1)
3273 irix6-5 | sol2* | unixware )
3274 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
3275 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
3276 dnl need the constant to dimension an array. So wire in the appropriate
3278 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
3282 emacs_broken_SIGIO=no
3285 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
3286 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
3287 hpux* | irix6-5 | openbsd | sol2* | unixware )
3288 emacs_broken_SIGIO=yes
3292 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
3293 dnl the way this system works, libc functions that return malloced
3294 dnl memory use the libc malloc implementation. Calling xfree or
3295 dnl xrealloc on the results of such functions results in a crash.
3297 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
3298 dnl but that does not currently work on this system.
3300 dnl It is possible to completely override the malloc implementation on
3301 dnl AIX, but that involves putting the malloc functions in a shared
3302 dnl library and setting the MALLOCTYPE environment variable to point to
3303 dnl that shared library.
3305 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
3306 dnl to avoid a crash just use the Emacs implementation for that function.
3308 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
3309 dnl of this file, so that we do not check for get_current_dir_name
3310 dnl on AIX. But that might be fragile if something else ends
3311 dnl up testing for get_current_dir_name as a dependency.
3312 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
3313 get_current_dir_name should not be used.])
3317 dnl Circumvent a bug in FreeBSD. In the following sequence of
3318 dnl writes/reads on a PTY, read(2) returns bogus data:
3320 dnl write(2) 1022 bytes
3321 dnl write(2) 954 bytes, get EAGAIN
3322 dnl read(2) 1024 bytes in process_read_output
3323 dnl read(2) 11 bytes in process_read_output
3325 dnl That is, read(2) returns more bytes than have ever been written
3326 dnl successfully. The 1033 bytes read are the 1022 bytes written
3327 dnl successfully after processing (for example with CRs added if the
3328 dnl terminal is set up that way which it is here). The same bytes will
3329 dnl be seen again in a later read(2), without the CRs.
3330 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
3331 work around an issue when reading from a PTY.])
3337 dnl FIXME Can't we test if this exists (eg /proc/$$)?
3338 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
3343 darwin | freebsd | netbsd | openbsd )
3344 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
3345 close a pty to make it a controlling terminal (it is already a
3346 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
3350 dnl FIXME Surely we can test for this rather than hard-code it.
3352 netbsd | openbsd) sound_device="/dev/audio" ;;
3353 *) sound_device="/dev/dsp" ;;
3357 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
3358 [Name of the default sound device.])
3361 dnl Emacs can read input using SIGIO and buffering characters itself,
3362 dnl or using CBREAK mode and making C-g cause SIGINT.
3363 dnl The choice is controlled by the variable interrupt_input.
3365 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
3367 dnl Emacs uses the presence of the USABLE_SIGIO macro
3368 dnl to indicate whether or not signal-driven I/O is possible. It uses
3369 dnl INTERRUPT_INPUT to decide whether to use it by default.
3371 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
3372 dnl CBREAK mode has two disadvantages
3373 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
3374 dnl I hear that in system V this problem does not exist.
3375 dnl 2) Control-G causes output to be discarded.
3376 dnl I do not know whether this can be fixed in system V.
3378 dnl Another method of doing input is planned but not implemented.
3379 dnl It would have Emacs fork off a separate process
3380 dnl to read the input and send it to the true Emacs process
3383 darwin | gnu-linux | gnu-kfreebsd )
3384 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
3389 dnl If the system's imake configuration file defines `NeedWidePrototypes'
3390 dnl as `NO', we must define NARROWPROTO manually. Such a define is
3391 dnl generated in the Makefile generated by `xmkmf'. If we don't define
3392 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
3393 dnl taking float or double parameters.
3395 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
3396 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
3397 file defines `NeedWidePrototypes' as `NO'.])
3402 dnl Used in process.c, this must be a loop, even if it only runs once.
3403 dnl (Except on SGI; see below. Take that, clarity and consistency!)
3404 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
3405 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
3406 dnl trying suffixes 0-16.
3407 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
3408 first PTY, if PTYs are supported.])
3409 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
3410 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
3411 end of a PTY, if non-standard.])
3412 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
3413 end of a PTY, if non-standard.])
3417 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
3418 dnl You allocate a pty by opening /dev/ptc to get the master side.
3419 dnl To get the name of the slave side, you just ttyname() the master side.
3420 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
3421 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
3425 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3426 dnl multi-line AC_DEFINEs are hard. :(
3427 AC_DEFINE(PTY_OPEN, [ do { int dummy; sigset_t blocked, procmask; sigemptyset (&blocked); sigaddset (&blocked, SIGCHLD); pthread_sigmask (SIG_BLOCK, &blocked, &procmask); if (-1 == openpty (&fd, &dummy, pty_name, 0, 0)) fd = -1; pthread_sigmask (SIG_SETMASK, &procmask, 0); if (fd >= 0) emacs_close (dummy); } while (0)])
3428 AC_DEFINE(PTY_NAME_SPRINTF, [])
3429 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3432 dnl FIXME? Maybe use same as freebsd - see bug#12040.
3434 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3435 dnl Not used, because PTY_ITERATION is defined.
3436 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3437 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
3438 dnl But we don't have to block SIGCHLD because it is blocked in the
3439 dnl implementation of grantpt.
3440 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (0)])
3441 AC_DEFINE(PTY_NAME_SPRINTF, [])
3442 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3446 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3449 gnu-linux | gnu-kfreebsd | freebsd | netbsd )
3451 if test "x$ac_cv_func_grantpt" = xyes; then
3452 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
3453 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3454 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
3455 dnl to prevent sigchld_handler from intercepting the child's death.
3456 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptyname = 0; sigset_t blocked; sigemptyset (&blocked); sigaddset (&blocked, SIGCHLD); pthread_sigmask (SIG_BLOCK, &blocked, 0); if (grantpt (fd) != -1 && unlockpt (fd) != -1) ptyname = ptsname(fd); pthread_sigmask (SIG_UNBLOCK, &blocked, 0); if (!ptyname) { close (fd); return -1; } snprintf (pty_name, sizeof pty_name, "%s", ptyname); }])
3457 dnl if HAVE_POSIX_OPENPT
3458 if test "x$ac_cv_func_posix_openpt" = xyes; then
3459 AC_DEFINE(PTY_OPEN, [fd = posix_openpt (O_RDWR | O_NOCTTY)])
3460 AC_DEFINE(PTY_NAME_SPRINTF, [])
3462 elif test "x$ac_cv_func_getpt" = xyes; then
3463 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
3464 AC_DEFINE(PTY_NAME_SPRINTF, [])
3466 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
3469 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3474 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3475 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
3476 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
3480 dnl It looks like this cannot be right, because it is not a loop.
3481 dnl However, process.c actually does this:
3487 dnl which presumably makes it OK, since irix == sgi (?).
3488 dnl FIXME it seems like this special treatment is unnecessary?
3489 dnl Why can't irix use a single-trip loop like eg cygwin?
3490 AC_DEFINE(PTY_ITERATION, [])
3491 dnl Not used, because PTY_ITERATION is defined.
3492 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
3493 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); }])
3494 dnl No need to get the pty name at all.
3495 AC_DEFINE(PTY_NAME_SPRINTF, [])
3496 dnl No need to use sprintf to get the tty name--we get that from _getpty.
3497 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3501 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
3502 dnl from intercepting that death. If any child but grantpt's should die
3503 dnl within, it should be caught after sigrelse(2).
3504 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptsname (int), *ptyname; int grantpt_result; sigset_t blocked; sigemptyset (&blocked); sigaddset (&blocked, SIGCLD); pthread_sigmask (SIG_BLOCK, &blocked, 0); grantpt_result = grantpt (fd); pthread_sigmask (SIG_UNBLOCK, &blocked, 0); if (grantpt_result == -1 || unlockpt (fd) == -1 || !(ptyname = ptsname (fd))) { emacs_close (fd); return -1; } snprintf (pty_name, sizeof pty_name, "%s", ptyname); }])
3508 dnl Comments are as per sol2*.
3509 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptsname (int), *ptyname; int grantpt_result; sigset_t blocked; sigemptyset (&blocked); sigaddset (&blocked, SIGCLD); pthread_sigmask (SIG_BLOCK, &blocked, 0); grantpt_result = grantpt (fd); pthread_sigmask (SIG_UNBLOCK, &blocked, 0); if (grantpt_result == -1) fatal("could not grant slave pty"); if (unlockpt(fd) == -1) fatal("could not unlock slave pty"); if (!(ptyname = ptsname(fd))) fatal ("could not enable slave pty"); snprintf (pty_name, sizeof pty_name, "%s", ptyname); }])
3516 dnl This change means that we don't loop through allocate_pty too
3517 dnl many times in the (rare) event of a failure.
3518 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
3519 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
3520 dnl Push various streams modules onto a PTY channel. Used in process.c.
3521 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.])
3526 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
3527 "typing" a signal character on the pty.])
3530 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
3531 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
3532 aix4-2 | cygwin | gnu | irix6-5 | freebsd | netbsd | openbsd )
3533 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3536 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
3537 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
3538 gnu-linux | gnu-kfreebsd )
3540 AC_MSG_CHECKING([for signals via characters])
3541 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3542 #include <linux/version.h>
3543 #if LINUX_VERSION_CODE < 0x20400
3544 # error "Linux version too old"
3546 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
3548 AC_MSG_RESULT([$emacs_signals_via_chars])
3549 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3554 dnl Used in dispnew.c
3555 AH_TEMPLATE(PENDING_OUTPUT_COUNT, [Number of chars of output in the
3556 buffer of a stdio stream.])
3558 AC_MSG_CHECKING([whether we are using the GNU C library])
3559 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3560 #include <features.h>
3561 #ifndef __GNU_LIBRARY__
3562 # error "this is not the GNU C library"
3564 ]], [[]])], emacs_glibc=yes, emacs_glibc=no)
3565 AC_MSG_RESULT([$emacs_glibc])
3567 if test $emacs_glibc = yes; then
3569 emacs_pending_output=unknown
3572 gnu | gnu-linux | gnu-kfreebsd )
3573 AC_MSG_CHECKING([for style of pending output formalism])
3574 dnl In autoconf 2.67 and later, we could use a single test
3575 dnl since the preprocessed output is accessible in "conftest.i".
3576 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3578 #if !defined (_IO_STDIO_H) && !defined (_STDIO_USES_IOSTREAM)
3579 # error "stdio definitions not found"
3581 ]], [[]])], emacs_pending_output=new, [])
3583 if test $emacs_pending_output = unknown; then
3585 gnu-linux | gnu-kfreebsd)
3586 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3589 # error "not using uclibc"
3591 ]], [[]])], emacs_pending_output=uclibc, emacs_pending_output=old)
3596 AC_MSG_RESULT([$emacs_pending_output])
3598 case $emacs_pending_output in
3600 dnl New C libio names.
3601 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE),
3602 [((FILE)->_IO_write_ptr - (FILE)->_IO_write_base)])
3605 dnl Using the uClibc library.
3606 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE),
3607 [((FILE)->__bufpos - (FILE)->__bufstart)])
3610 dnl Old C++ iostream names.
3611 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE),
3612 [((FILE)->_pptr - (FILE)->_pbase)])
3618 if test $emacs_pending_output = unknown; then
3619 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->__bufp - (FILE)->__buffer)])
3622 else dnl !emacs_glibc
3625 cygwin | darwin | freebsd | netbsd | openbsd )
3626 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->_p - (FILE)->_bf._base)])
3630 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->__ptr - (FILE)->__base)])
3634 dnl HAVE_STDIO_EXT_H && HAVE___FPENDING
3635 if test x$ac_cv_header_stdio_ext_h = xyes && \
3636 test x$ac_cv_func___fpending = xyes; then
3637 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [__fpending (FILE)])
3638 AC_DEFINE(DISPNEW_NEEDS_STDIO_EXT, 1,
3639 [Define if dispnew.c should include stdio_ext.h.])
3641 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->_ptr - (FILE)->_base)])
3648 dnl Used in vm-limit.c
3649 AH_TEMPLATE(DATA_START, [Address of the start of the data segment.])
3650 dnl Used in lisp.h, emacs.c, mem-limits.h
3651 dnl NEWS.18 describes this as "a number which contains
3652 dnl the high bits to be inclusive or'ed with pointers that are unpacked."
3653 AH_TEMPLATE(DATA_SEG_BITS, [Extra bits to be or'd in with any pointers
3654 stored in a Lisp_Object.])
3655 dnl if Emacs uses fewer than 32 bits for the value field of a LISP_OBJECT.
3659 dnl libc defines data_start.
3660 AC_DEFINE(DATA_START, [({ extern int data_start; (char *) &data_start; })])
3664 dnl The data segment on this machine always starts at address 0x40000000.
3665 AC_DEFINE(DATA_START, [0x40000000])
3666 AC_DEFINE(DATA_SEG_BITS, [0x40000000])
3669 AC_DEFINE(DATA_START, [0x10000000])
3670 AC_DEFINE(DATA_SEG_BITS, [0x10000000])
3675 AH_TEMPLATE(ULIMIT_BREAK_VALUE, [Undocumented.])
3676 AH_TEMPLATE(TAB3, [Undocumented.])
3679 darwin) AC_DEFINE(TAB3, OXTABS) ;;
3681 gnu | freebsd | netbsd | openbsd )
3682 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
3683 AC_DEFINE(TAB3, OXTABS)
3686 gnu-linux | gnu-kfreebsd )
3687 dnl libc-linux/sysdeps/linux/i386/ulimit.c says that due to shared
3688 dnl library, we cannot get the maximum address for brk.
3689 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3693 ]], [[]])], AC_DEFINE(ULIMIT_BREAK_VALUE, [(32*1024*1024)]), [])
3695 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3699 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
3700 [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)],
3701 [Mark a secondary stack, like the register stack on the ia64.]), [])
3705 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
3706 run_time_remap; for HPUX.])
3710 dnl Ulimit(UL_GMEMLIM) is busted...
3711 AC_DEFINE(ULIMIT_BREAK_VALUE, [0x14000000])
3716 dnl These won't be used automatically yet. We also need to know, at least,
3717 dnl that the stack is continuous.
3718 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
3719 registers relevant for conservative garbage collection in the jmp_buf.])
3721 AH_TEMPLATE(GC_MARK_STACK, [Define to GC_USE_GCPROS_AS_BEFORE if
3722 conservative garbage collection is not known to work.])
3726 aix4-2 | hpux* | unixware)
3727 dnl Conservative garbage collection has not been tested, so for now
3728 dnl play it safe and stick with the old-fashioned way of marking.
3729 AC_DEFINE(GC_MARK_STACK, [GC_USE_GCPROS_AS_BEFORE])
3732 dnl Not all the architectures are tested, but there are Debian packages
3733 dnl for SCM and/or Guile on them, so the technique must work. See also
3734 dnl comments in alloc.c concerning setjmp and gcc.
3735 dnl Fixme: it's probably safe to just use the GCC conditional below.
3736 gnu-linux | gnu-kfreebsd )
3737 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3738 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
3739 || defined __alpha__ || defined __mips__ || defined __s390__ \
3740 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
3741 || defined __ia64__ || defined __sh__
3744 # error "setjmp not known to work on this arch"
3746 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1),
3747 AC_DEFINE(GC_MARK_STACK, [GC_USE_GCPROS_AS_BEFORE]) )
3752 if test x$GCC = xyes; then
3753 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
3754 AC_DEFINE(GC_SETJMP_WORKS, 1)
3757 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
3758 freebsd | netbsd | openbsd | irix6-5 | sol2* )
3759 AC_DEFINE(GC_SETJMP_WORKS, 1)
3764 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
3767 [[#include <setjmp.h>
3771 _longjmp (j, 1);]])],
3772 [emacs_cv_func__setjmp=yes],
3773 [emacs_cv_func__setjmp=no])])
3774 if test $emacs_cv_func__setjmp = yes; then
3775 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
3777 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
3780 [[#include <setjmp.h>
3783 if (! sigsetjmp (j, 1))
3784 siglongjmp (j, 1);]])],
3785 [emacs_cv_func_sigsetjmp=yes],
3786 [emacs_cv_func_sigsetjmp=no])])
3787 if test $emacs_cv_func_sigsetjmp = yes; then
3788 AC_DEFINE([HAVE_SIGSETJMP], 1,
3789 [Define to 1 if sigsetjmp and siglongjmp work.
3790 The value of this symbol is irrelevant if HAVE__SETJMP is defined.])
3796 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
3797 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
3798 dnl and this is all we need.
3799 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
3806 dnl Used in xfaces.c.
3807 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
3808 some systems, where it requires time.h.])
3813 dnl Define symbols to identify the version of Unix this is.
3814 dnl Define all the symbols that apply correctly.
3815 AH_TEMPLATE(BSD4_2, [Define if the system is compatible with BSD 4.2.])
3816 AH_TEMPLATE(BSD_SYSTEM, [Define if the system is compatible with BSD 4.2.])
3817 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
3818 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
3819 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
3820 AH_TEMPLATE(USG5, [Define if the system is compatible with System V.])
3821 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
3827 dnl This symbol should be defined on AIX Version 3 ???????
3828 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3830 # error "_AIX not defined"
3832 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
3836 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
3840 dnl BSD4_3 and BSD4_4 are already defined in sys/param.h.
3841 AC_DEFINE(BSD4_2, [])
3842 AC_DEFINE(BSD_SYSTEM, [])
3843 dnl More specific than the above two. We cannot use __APPLE__ as this
3844 dnl may not be defined on non-OSX Darwin, and we cannot define DARWIN
3845 dnl here because Panther and lower CoreFoundation.h uses DARWIN to
3846 dnl distinguish OS X from pure Darwin.
3847 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
3851 AC_DEFINE(BSD4_2, [])
3852 dnl Hack to avoid calling AC_PREPROC_IFELSE multiple times.
3853 dnl Would not be needed with autoconf >= 2.67, where the
3854 dnl preprocessed output is accessible in "conftest.i".
3855 AC_DEFINE(BSD_SYSTEM_AHB, 1, [Define if AH_BOTTOM should change BSD_SYSTEM.])
3858 gnu | netbsd | openbsd )
3859 AC_DEFINE(BSD4_2, [])
3860 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3862 # error "BSD_SYSTEM not defined"
3864 ]], [[]])], [], AC_DEFINE(BSD_SYSTEM, 43) )
3867 gnu-linux | gnu-kfreebsd )
3869 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
3875 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
3881 AC_DEFINE(USG5_4, [])
3882 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
3888 AC_DEFINE(USG5_4, [])
3889 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
3895 AC_DEFINE(USG5_4, [])
3899 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
3902 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
3903 emacs_cv_usable_FIONREAD=no
3908 [AC_LANG_PROGRAM([[#include <sys/types.h>
3909 #include <sys/ioctl.h>
3911 # include <sys/filio.h>
3914 [[int foo = ioctl (0, FIONREAD, &foo);]])],
3915 [emacs_cv_usable_FIONREAD=yes],
3916 [emacs_cv_usable_FIONREAD=no])
3919 if test $emacs_cv_usable_FIONREAD = yes; then
3920 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
3922 if test $emacs_broken_SIGIO = no; then
3923 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
3925 [AC_LANG_PROGRAM([[#include <fcntl.h>
3928 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
3929 [emacs_cv_usable_SIGIO=yes],
3930 [emacs_cv_usable_SIGIO=no])],
3931 [emacs_cv_usable_SIGIO=yes],
3932 [emacs_cv_usable_SIGIO=no])
3933 if test $emacs_cv_usable_SIGIO = yes; then
3934 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
3941 dnl Emacs supplies its own malloc, but glib (part of Gtk+) calls
3942 dnl memalign and on Cygwin, that becomes the Cygwin-supplied memalign.
3943 dnl As malloc is not the Cygwin malloc, the Cygwin memalign always
3944 dnl returns ENOSYS. A workaround is to set G_SLICE=always-malloc. */
3946 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
3947 G_SLICE environment variable to "always-malloc" at startup, if
3952 dnl See comments in sysdep.c:sys_signal.
3953 dnl SA_RESTART resets the timeout of `select' on hpux11.
3954 dnl Defining BROKEN_SA_RESTART is not the same as undef'ing SA_RESTART.
3955 AC_DEFINE(BROKEN_SA_RESTART, 1, [Define if SA_RESTART should only
3956 be used in batch mode.])
3957 dnl It works to open the pty's tty in the parent (Emacs), then
3958 dnl close and reopen it in the child.
3959 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
3960 works to open a pty's tty in the parent process, then close and
3961 reopen it in the child.])
3965 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
3966 use VSUSP instead of VSWTCH.])
3967 AC_DEFINE(SETPGRP_RELEASES_CTTY, 1, [Define if process.c:child_setup
3968 should not call setpgrp.])
3972 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
3977 # Set up the CFLAGS for real compilation, so we can substitute it.
3978 CFLAGS="$REAL_CFLAGS"
3979 CPPFLAGS="$REAL_CPPFLAGS"
3981 ## Hack to detect a buggy GCC version.
3982 if test "x$GCC" = xyes \
3983 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
3984 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
3985 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
3986 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
3989 version=$PACKAGE_VERSION
3991 ### Specify what sort of things we'll be editing into Makefile and config.h.
3992 ### Use configuration here uncanonicalized to avoid exceeding size limits.
3994 AC_SUBST(configuration)
3999 AC_SUBST(exec_prefix)
4002 AC_SUBST(sharedstatedir)
4003 AC_SUBST(libexecdir)
4008 AC_SUBST(standardlisppath)
4009 AC_SUBST(locallisppath)
4011 AC_SUBST(x_default_search_path)
4013 AC_SUBST(archlibdir)
4018 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4019 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4020 ## end of LIBX_BASE, but nothing ever set it.
4021 AC_SUBST(LD_SWITCH_X_SITE)
4022 AC_SUBST(C_SWITCH_X_SITE)
4023 AC_SUBST(GNUSTEP_CFLAGS)
4025 ## Used in lwlib/Makefile.in.
4026 AC_SUBST(X_TOOLKIT_TYPE)
4028 AC_SUBST(ns_appbindir)
4029 AC_SUBST(ns_appresdir)
4031 AC_SUBST(GNU_OBJC_CFLAGS)
4032 AC_SUBST(OTHER_FILES)
4034 if test -n "${term_header}"; then
4035 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4036 [Define to the header for the built-in window system.])
4039 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4040 [Define to the canonical Emacs configuration name.])
4041 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${ac_configure_args}",
4042 [Define to the options passed to configure.])
4043 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4044 define this to include extra configuration information.])
4049 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4050 AC_DEFINE(HAVE_X_WINDOWS, 1,
4051 [Define to 1 if you want to use the X window system.])
4053 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o xgselect.o"
4055 if test "$HAVE_XFT" = "yes"; then
4056 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4057 elif test "$HAVE_FREETYPE" = "yes"; then
4058 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4068 if test "${USE_X_TOOLKIT}" != "none" ; then
4070 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4071 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4072 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4073 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4074 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4078 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4079 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4083 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4084 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4085 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4089 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4090 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4093 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4096 AC_SUBST(WIDGET_OBJ)
4099 case "$USE_X_TOOLKIT" in
4100 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4101 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4102 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4104 AC_SUBST(TOOLKIT_LIBW)
4106 if test "$USE_X_TOOLKIT" = "none"; then
4107 LIBXT_OTHER="\$(LIBXSM)"
4108 OLDXMENU_TARGET="really-oldXMenu"
4110 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4111 OLDXMENU_TARGET="really-lwlib"
4113 AC_SUBST(LIBXT_OTHER)
4115 ## The X Menu stuff is present in the X10 distribution, but missing
4116 ## from X11. If we have X10, just use the installed library;
4117 ## otherwise, use our own copy.
4118 if test "${HAVE_X11}" = "yes" ; then
4119 AC_DEFINE(HAVE_X11, 1,
4120 [Define to 1 if you want to use version 11 of X windows.
4121 Otherwise, Emacs expects to use version 10.])
4123 if test "$USE_X_TOOLKIT" = "none"; then
4124 OLDXMENU="\${oldXMenudir}/libXMenu11.a"
4126 OLDXMENU="\${lwlibdir}/liblw.a"
4128 LIBXMENU="\$(OLDXMENU)"
4129 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4130 OLDXMENU_DEPS="\${OLDXMENU} ../src/\${OLDXMENU}"
4132 ## For a syntactically valid Makefile; not actually used for anything.
4133 ## See comments in src/Makefile.in.
4135 ## FIXME This case (!HAVE_X11 && HAVE_X_WINDOWS) is no longer possible(?).
4136 if test "${HAVE_X_WINDOWS}" = "yes"; then
4145 if test "$HAVE_GTK" = "yes" || test "$HAVE_MENUS" != "yes"; then
4152 AC_SUBST(OLDXMENU_TARGET)
4155 AC_SUBST(LIBX_OTHER)
4156 AC_SUBST(OLDXMENU_DEPS)
4158 if test "${HAVE_MENUS}" = "yes" ; then
4159 AC_DEFINE(HAVE_MENUS, 1,
4160 [Define to 1 if you have mouse menus.
4161 (This is automatic if you use X, but the option to specify it remains.)
4162 It is also defined with other window systems that support xmenu.c.])
4165 if test "${GNU_MALLOC}" = "yes" ; then
4166 AC_DEFINE(GNU_MALLOC, 1,
4167 [Define to 1 if you want to use the GNU memory allocator.])
4171 if test "${REL_ALLOC}" = "yes" ; then
4172 AC_DEFINE(REL_ALLOC, 1,
4173 [Define REL_ALLOC if you want to use the relocating allocator for
4176 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4178 AC_SUBST(RALLOC_OBJ)
4180 if test "$opsys" = "cygwin"; then
4181 CYGWIN_OBJ="sheap.o"
4182 ## Cygwin differs because of its unexec().
4184 POST_ALLOC_OBJ=lastfile.o
4187 PRE_ALLOC_OBJ=lastfile.o
4190 AC_SUBST(CYGWIN_OBJ)
4191 AC_SUBST(PRE_ALLOC_OBJ)
4192 AC_SUBST(POST_ALLOC_OBJ)
4194 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4195 # it temporarily reverts them to their pre-pkg-config values,
4196 # because gnulib needs to work with both src (which uses the
4197 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4198 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4199 # and it therefore needs to run in an environment where LIBS does not
4200 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4201 # for some package unrelated to lib-src.
4204 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4205 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4206 gl_ASSERT_NO_GNULIB_POSIXCHECK
4207 gl_ASSERT_NO_GNULIB_TESTS
4213 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4216 ## The -headerpad option tells ld (see man page) to leave room at the
4217 ## end of the header for adding load commands. Needed for dumping.
4218 ## 0x690 is the total size of 30 segment load commands (at 56
4219 ## each); under Cocoa 31 commands are required.
4220 if test "$HAVE_NS" = "yes"; then
4221 libs_nsgui="-framework AppKit"
4227 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4229 ## This is here because src/Makefile.in did some extra fiddling around
4230 ## with LD_SWITCH_SYSTEM. The cpp logic was:
4231 ## #ifndef LD_SWITCH_SYSTEM
4232 ## #if !defined (__GNUC__) && ((defined (BSD_SYSTEM) && !defined (COFF)))
4233 ## Since all the *bsds define LD_SWITCH_SYSTEM, this simplifies to:
4234 ## not using gcc, darwin.
4235 ## Because this was done in src/Makefile.in, the resulting part of
4236 ## LD_SWITCH_SYSTEM was not used in configure (ie, in ac_link).
4237 ## It therefore seems cleaner to put this in LD_SWITCH_SYSTEM_TEMACS,
4238 ## rather than LD_SWITCH_SYSTEM.
4239 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4240 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4243 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4244 ## find X at run-time.
4245 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4246 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4247 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4248 ## had different values in configure (in ac_link) and src/Makefile.in.
4249 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4250 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4252 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4255 if test "$NS_IMPL_GNUSTEP" = "yes"; then
4256 LD_SWITCH_SYSTEM_TEMACS="${LD_SWITCH_SYSTEM_TEMACS} -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES} -lgnustep-gui -lgnustep-base -lobjc -lpthread"
4259 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4265 ## gnu: GNU needs its own crt0.
4266 aix4-2|cygwin|darwin|gnu|hpux*|irix6-5|sol2*|unixware) ORDINARY_LINK=yes ;;
4268 ## On post 1.3 releases of NetBSD, gcc -nostdlib also clears the
4269 ## library search parth, i.e. it won't search /usr/lib for libc and
4270 ## friends. Using -nostartfiles instead avoids this problem, and
4271 ## will also work on earlier NetBSD releases.
4272 netbsd|openbsd) LD_FIRSTFLAG="-nostartfiles" ;;
4274 ## powerpc*: NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp> says
4275 ## MkLinux/LinuxPPC needs this.
4276 ## s390x-* only supports opsys = gnu-linux so it can be added here.
4278 case "$canonical" in
4279 powerpc*|s390x-*) LD_FIRSTFLAG="-nostdlib" ;;
4285 if test "x$ORDINARY_LINK" = "xyes"; then
4288 AC_DEFINE(ORDINARY_LINK, 1, [Define if the C compiler is the linker.])
4290 ## The system files defining neither ORDINARY_LINK nor LD_FIRSTFLAG are:
4291 ## freebsd, gnu-* not on powerpc*|s390x*.
4292 elif test "x$GCC" = "xyes" && test "x$LD_FIRSTFLAG" = "x"; then
4294 ## Versions of GCC >= 2.0 put their library, libgcc.a, in obscure
4295 ## places that are difficult to figure out at make time. Fortunately,
4296 ## these same versions allow you to pass arbitrary flags on to the
4297 ## linker, so there is no reason not to use it as a linker.
4299 ## Well, it is not quite perfect. The "-nostdlib" keeps GCC from
4300 ## searching for libraries in its internal directories, so we have to
4301 ## ask GCC explicitly where to find libgcc.a (LIB_GCC below).
4302 LD_FIRSTFLAG="-nostdlib"
4305 ## FIXME? What setting of EDIT_LDFLAGS should this have?
4306 test "$NS_IMPL_GNUSTEP" = "yes" && LD_FIRSTFLAG="-rdynamic"
4308 AC_SUBST(LD_FIRSTFLAG)
4311 ## FIXME? The logic here is not precisely the same as that above.
4312 ## There is no check here for a pre-defined LD_FIRSTFLAG.
4313 ## Should we only be setting LIB_GCC if LD ~ -nostdlib?
4315 if test "x$GCC" = "xyes" && test "x$ORDINARY_LINK" != "xyes"; then
4318 freebsd|netbsd|openbsd) LIB_GCC= ;;
4321 ## armin76@gentoo.org reported that the lgcc_s flag is necessary to
4322 ## build on ARM EABI under GNU/Linux. (Bug#5518)
4328 ## FIXME? s/gnu-linux.h used to define LIB_GCC as below, then
4329 ## immediately undefine it again and redefine it to empty.
4330 ## Was the C_SWITCH_X_SITE part really necessary?
4331 ## LIB_GCC=`$CC $C_SWITCH_X_SITE -print-libgcc-file-name`
4337 ## Ask GCC where to find libgcc.a.
4338 *) LIB_GCC=`$CC -print-libgcc-file-name 2> /dev/null` ;;
4343 ## Common for all window systems
4344 if test "$window_system" != "none"; then
4345 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4346 AC_DEFINE(HAVE_MOUSE, 1, [Define if you have mouse support.])
4347 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4350 AC_SUBST(WINDOW_SYSTEM_OBJ)
4352 AH_TOP([/* GNU Emacs site configuration template file.
4354 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2012
4355 Free Software Foundation, Inc.
4357 This file is part of GNU Emacs.
4359 GNU Emacs is free software: you can redistribute it and/or modify
4360 it under the terms of the GNU General Public License as published by
4361 the Free Software Foundation, either version 3 of the License, or
4362 (at your option) any later version.
4364 GNU Emacs is distributed in the hope that it will be useful,
4365 but WITHOUT ANY WARRANTY; without even the implied warranty of
4366 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4367 GNU General Public License for more details.
4369 You should have received a copy of the GNU General Public License
4370 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4373 /* No code in Emacs #includes config.h twice, but some bits of code
4374 intended to work with other packages as well (like gmalloc.c)
4375 think they can include it as many times as they like. */
4376 #ifndef EMACS_CONFIG_H
4377 #define EMACS_CONFIG_H
4380 AH_BOTTOM([#include <conf_post.h>
4382 #endif /* EMACS_CONFIG_H */
4391 #### Report on what we decided to do.
4392 #### Report GTK as a toolkit, even if it doesn't use Xt.
4393 #### It makes printing result more understandable as using GTK sets
4394 #### toolkit_scroll_bars to yes by default.
4395 if test "${HAVE_GTK}" = "yes"; then
4400 Configured for \`${canonical}'.
4402 Where should the build process find the source code? ${srcdir}
4403 What compiler should emacs be built with? ${CC} ${CFLAGS}
4404 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4405 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4406 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4407 What window system should Emacs use? ${window_system}
4408 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4410 if test -n "${x_includes}"; then
4411 echo " Where do we find X Windows header files? ${x_includes}"
4413 echo " Where do we find X Windows header files? Standard dirs"
4415 if test -n "${x_libraries}"; then
4416 echo " Where do we find X Windows libraries? ${x_libraries}"
4418 echo " Where do we find X Windows libraries? Standard dirs"
4421 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4422 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4423 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4424 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4425 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4426 echo " Does Emacs use -lpng? ${HAVE_PNG}"
4427 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4428 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4430 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4431 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4432 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4433 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4434 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4435 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4436 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4438 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4439 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4440 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
4441 echo " Does Emacs use -lxft? ${HAVE_XFT}"
4443 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
4446 if test -n "${EMACSDATA}"; then
4447 echo " Environment variable EMACSDATA set to: $EMACSDATA"
4449 if test -n "${EMACSDOC}"; then
4450 echo " Environment variable EMACSDOC set to: $EMACSDOC"
4455 if test "$HAVE_NS" = "yes"; then
4457 echo "You must run \"${MAKE-make} install\" in order to test the built application.
4458 The installed application will go to nextstep/Emacs.app and can be
4459 run or moved from there."
4460 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
4461 echo "The application will be fully self-contained."
4463 echo "The lisp resources for the application will be installed under ${prefix}.
4464 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
4465 to run if these resources are not installed."
4470 if test "${opsys}" = "cygwin"; then
4472 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
4478 # Remove any trailing slashes in these variables.
4479 [test "${prefix}" != NONE &&
4480 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
4481 test "${exec_prefix}" != NONE &&
4482 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
4484 if test "$HAVE_NS" = "yes"; then
4485 if test "$NS_IMPL_GNUSTEP" = yes; then
4486 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
4487 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
4489 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
4490 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
4494 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
4495 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
4496 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
4497 dnl (else you get "no `Makefile.am' found for any configure output").
4498 dnl This will work, but you get a config.status that is not quite right
4499 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
4500 dnl That doesn't have any obvious consequences for Emacs, but on the whole
4501 dnl it seems better to just live with the duplication.
4502 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile"
4504 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
4505 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
4506 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
4507 leim/Makefile nextstep/Makefile])
4509 dnl test/ is not present in release tarfiles.
4510 opt_makefile=test/automated/Makefile
4512 if test -f $srcdir/${opt_makefile}.in; then
4513 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4514 dnl Again, it's best not to use a variable. Though you can add
4515 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
4516 AC_CONFIG_FILES([test/automated/Makefile])
4520 dnl admin/ may or may not be present.
4521 opt_makefile=admin/unidata/Makefile
4523 if test -f $srcdir/${opt_makefile}.in; then
4524 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4525 AC_CONFIG_FILES([admin/unidata/Makefile])
4529 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
4531 AC_SUBST(SUBDIR_MAKEFILES_IN)
4533 dnl Make the necessary directories, if they don't exist.
4534 AC_CONFIG_COMMANDS([mkdirs], [
4535 for dir in etc lisp ; do
4536 test -d ${dir} || mkdir ${dir}
4540 dnl You might wonder (I did) why epaths.h is generated by running make,
4541 dnl rather than just letting configure generate it from epaths.in.
4542 dnl One reason is that the various paths are not fully expanded (see above);
4543 dnl eg gamedir=${prefix}/var/games/emacs.
4544 dnl Secondly, the GNU Coding standards require that one should be able
4545 dnl to run `make prefix=/some/where/else' and override the values set
4546 dnl by configure. This also explains the `move-if-change' test and
4547 dnl the use of force in the `epaths-force' rule in Makefile.in.
4548 AC_CONFIG_COMMANDS([epaths], [
4549 echo creating src/epaths.h
4550 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
4551 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS"])
4553 AC_CONFIG_COMMANDS([gdbinit], [
4554 if test ! -f src/.gdbinit && test -f $srcdir/src/.gdbinit; then
4555 echo creating src/.gdbinit
4556 echo source $srcdir/src/.gdbinit > src/.gdbinit