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, 1999-2013 Free Software Foundation, Inc.
9 dnl This file is part of GNU Emacs.
11 dnl GNU Emacs is free software: you can redistribute it and/or modify
12 dnl it under the terms of the GNU General Public License as published by
13 dnl the Free Software Foundation, either version 3 of the License, or
14 dnl (at your option) any later version.
16 dnl GNU Emacs is distributed in the hope that it will be useful,
17 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
18 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 dnl GNU General Public License for more details.
21 dnl You should have received a copy of the GNU General Public License
22 dnl along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
25 AC_INIT(emacs, 24.3.50)
27 dnl Set emacs_config_options to the options of 'configure', quoted for the shell,
28 dnl and then quoted again for a C string. Separate options with spaces.
29 dnl Add some environment variables, if they were passed via the environment
30 dnl rather than on the command-line.
33 dnl This is the documented way to record the args passed to configure,
34 dnl rather than $ac_configure_args.
35 for opt in ${1+"$@"} CFLAGS CPPFLAGS LDFLAGS; do
37 -n | --no-create | --no-recursion)
39 CFLAGS | CPPFLAGS | LDFLAGS)
40 eval 'test "${'$opt'+set}" = set' || continue
42 *" $opt="*) continue ;;
44 eval opt=$opt=\$$opt ;;
47 emacs_shell_specials=$IFS\''"#$&()*;<>?@<:@\\`{|~'
49 *[["$emacs_shell_specials"]]*)
52 emacs_quote_apostrophes="s/'/'\\\\''/g"
53 opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_apostrophes"` ;;
58 emacs_quote_for_c='s/[["\\]]/\\&/g; $!s/$/\\n\\/'
59 opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_for_c"` ;;
62 AS_VAR_APPEND([emacs_config_options], ["$optsep$opt"])
66 AC_CONFIG_HEADER(src/config.h:src/config.in)
67 AC_CONFIG_SRCDIR(src/lisp.h)
68 AC_CONFIG_AUX_DIR(build-aux)
69 dnl Fairly arbitrary, older versions might work too.
70 AM_INIT_AUTOMAKE(1.11)
72 dnl Support for --program-prefix, --program-suffix and
73 dnl --program-transform-name options
76 dnl It is important that variables on the RHS not be expanded here,
77 dnl hence the single quotes. This is per the GNU coding standards, see
78 dnl (autoconf) Installation Directory Variables
79 dnl See also epaths.h below.
80 lispdir='${datadir}/emacs/${version}/lisp'
81 leimdir='${datadir}/emacs/${version}/leim'
82 standardlisppath='${lispdir}:${leimdir}'
83 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
84 '${datadir}/emacs/site-lisp'
85 lisppath='${locallisppath}:${standardlisppath}'
86 etcdir='${datadir}/emacs/${version}/etc'
87 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
88 etcdocdir='${datadir}/emacs/${version}/etc'
89 gamedir='${localstatedir}/games/emacs'
91 dnl Special option to disable the most of other options.
93 [AS_HELP_STRING([--without-all],
94 [omit almost all features and build
95 small executable with minimal dependencies])],
96 with_features=$withval,
99 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
100 dnl Create a new --with option that defaults to being disabled.
101 dnl NAME is the base name of the option. The shell variable with_NAME
102 dnl will be set to either the user's value (if the option is
103 dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
104 dnl option is not specified). Note that the shell variable name is
105 dnl constructed as autoconf does, by replacing non-alphanumeric
106 dnl characters with "_".
107 dnl HELP-STRING is the help text for the option.
108 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
109 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
110 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
113 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
114 dnl Create a new --with option that defaults to $with_features.
115 dnl NAME is the base name of the option. The shell variable with_NAME
116 dnl will be set either to 'no' (for a plain --without-NAME) or to
117 dnl 'yes' (if the option is not specified). Note that the shell
118 dnl variable name is constructed as autoconf does, by replacing
119 dnl non-alphanumeric characters with "_".
120 dnl HELP-STRING is the help text for the option.
121 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
122 AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
123 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=$with_features])dnl
126 OPTION_DEFAULT_ON([pop],[don't support POP mail retrieval with movemail])
127 if test "$with_pop" = yes; then
128 AC_DEFINE(MAIL_USE_POP)
130 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
132 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
133 if test "$with_kerberos" != no; then
136 AH_TEMPLATE(KERBEROS,
137 [Define to support Kerberos-authenticated POP mail retrieval.])dnl
139 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
140 if test "${with_kerberos5}" != no; then
141 if test "${with_kerberos}" = no; then
145 AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
148 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
149 dnl FIXME hesiod support may not be present, so it seems like an error
150 dnl to define, or at least use, this unconditionally.
151 if test "$with_hesiod" != no; then
152 AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
155 OPTION_DEFAULT_OFF([mmdf],[support MMDF mailboxes])
156 if test "$with_mmdf" != no; then
157 AC_DEFINE(MAIL_USE_MMDF, 1, [Define to support MMDF mailboxes in movemail.])
160 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
161 if test "$with_mail_unlink" != no; then
162 AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
165 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
166 [string giving default POP mail host])],
167 AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
169 AC_ARG_WITH([sound],[AS_HELP_STRING([--with-sound=VALUE],
170 [compile with sound support (VALUE one of: yes, ossaudio, alsa, no;
171 default yes). Only for GNU/Linux, FreeBSD, NetBSD, MinGW.])],
172 [ case "${withval}" in
173 yes|no|ossaudio|alsa) val=$withval ;;
174 *) AC_MSG_ERROR([`--with-sound=$withval' is invalid;
175 this option's value should be `yes', `no', `ossaudio', or `alsa'.])
180 [with_sound=$with_features])
182 dnl FIXME currently it is not the last.
183 dnl This should be the last --with option, because --with-x is
184 dnl added later on when we find the file name of X, and it's best to
185 dnl keep them together visually.
186 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
187 [use an X toolkit (KIT one of: yes or gtk, gtk2, gtk3, lucid or athena, motif, no)])],
188 [ case "${withval}" in
189 y | ye | yes ) val=gtk ;;
191 l | lu | luc | luci | lucid ) val=lucid ;;
192 a | at | ath | athe | athen | athena ) val=athena ;;
193 m | mo | mot | moti | motif ) val=motif ;;
194 g | gt | gtk ) val=gtk ;;
198 AC_MSG_ERROR([`--with-x-toolkit=$withval' is invalid;
199 this option's value should be `yes', `no', `lucid', `athena', `motif', `gtk',
200 `gtk2' or `gtk3'. `yes' and `gtk' are synonyms.
201 `athena' and `lucid' are synonyms.])
207 OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit)])
208 if test "$with_wide_int" = yes; then
209 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
212 dnl _ON results in a '--without' option in the --help output, so
213 dnl the help text should refer to "don't compile", etc.
214 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
215 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
216 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
217 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
218 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
219 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
220 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
221 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
223 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
224 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
225 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
227 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
228 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
229 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
230 OPTION_DEFAULT_OFF([ns],[use NeXTstep (Cocoa or GNUstep) windowing system])
231 OPTION_DEFAULT_OFF([w32], [use native MS Windows GUI in a Cygwin build])
233 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
234 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
235 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
236 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
237 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
238 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
239 OPTION_DEFAULT_ON([zlib],[don't compile with zlib decompression support])
241 AC_ARG_WITH([file-notification],[AS_HELP_STRING([--with-file-notification=LIB],
242 [use a file notification library (LIB one of: yes, gfile, inotify, w32, no)])],
243 [ case "${withval}" in
244 y | ye | yes ) val=yes ;;
246 g | gf | gfi | gfil | gfile ) val=gfile ;;
247 i | in | ino | inot | inoti | inotif | inotify ) val=inotify ;;
248 w | w3 | w32 ) val=w32 ;;
249 * ) AC_MSG_ERROR([`--with-file-notification=$withval' is invalid;
250 this option's value should be `yes', `no', `gfile', `inotify' or `w32'.
251 `yes' is a synonym for `w32' on MS-Windows, for `no' on Nextstep,
252 otherwise for the first of `gfile' or `inotify' that is usable.])
255 with_file_notification=$val
257 [with_file_notification=$with_features])
259 OPTION_DEFAULT_OFF([xwidgets],[enable use of some gtk widgets it Emacs buffers])
261 ## For the times when you want to build Emacs but don't have
262 ## a suitable makeinfo, and can live without the manuals.
263 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
264 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
266 ## Makefile.in needs the cache file name.
269 ## This is an option because I do not know if all info/man support
270 ## compressed files, nor how to test if they do so.
271 OPTION_DEFAULT_ON([compress-info],[don't compress the installed Info pages])
272 if test $with_compress_info = yes; then
279 AC_ARG_WITH([pkg-config-prog],dnl
280 [AS_HELP_STRING([--with-pkg-config-prog=FILENAME],
281 [file name of pkg-config for finding GTK and librsvg])])
282 if test "X${with_pkg_config_prog}" != X; then
283 if test "${with_pkg_config_prog}" != yes; then
284 PKG_CONFIG="${with_pkg_config_prog}"
288 AC_ARG_WITH(gameuser,dnl
289 [AS_HELP_STRING([--with-gameuser=USER],[user for shared game score files])])
290 test "X${with_gameuser}" != X && test "${with_gameuser}" != yes \
291 && gameuser="${with_gameuser}"
292 test "X$gameuser" = X && gameuser=games
294 AC_ARG_WITH([gnustep-conf],dnl
295 [AS_HELP_STRING([--with-gnustep-conf=FILENAME],
296 [name of GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
297 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
298 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
299 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
300 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
302 AC_ARG_ENABLE(ns-self-contained,
303 [AS_HELP_STRING([--disable-ns-self-contained],
304 [disable self contained build under NeXTstep])],
305 EN_NS_SELF_CONTAINED=$enableval,
306 EN_NS_SELF_CONTAINED=yes)
308 AC_ARG_ENABLE(locallisppath,
309 [AS_HELP_STRING([--enable-locallisppath=PATH],
310 [directories Emacs should search for lisp files specific
312 if test "${enableval}" = "no"; then
314 elif test "${enableval}" != "yes"; then
315 locallisppath=${enableval}
318 AC_ARG_ENABLE(checking,
319 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
320 [enable expensive run-time checks. With LIST,
321 enable only specific categories of checks.
322 Categories are: all,yes,no.
323 Flags are: stringbytes, stringoverrun, stringfreelist,
324 xmallocoverrun, conslist, glyphs])],
325 [ac_checking_flags="${enableval}"],[])
326 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
327 for check in $ac_checking_flags
330 # these set all the flags to specific states
331 yes) ac_enable_checking=1 ;;
332 no) ac_enable_checking= ;
333 ac_gc_check_stringbytes= ;
334 ac_gc_check_string_overrun= ;
335 ac_gc_check_string_free_list= ;
336 ac_xmalloc_overrun= ;
337 ac_gc_check_cons_list= ;
339 all) ac_enable_checking=1 ;
340 ac_gc_check_stringbytes=1 ;
341 ac_gc_check_string_overrun=1 ;
342 ac_gc_check_string_free_list=1 ;
343 ac_xmalloc_overrun=1 ;
344 ac_gc_check_cons_list=1 ;
346 # these enable particular checks
347 stringbytes) ac_gc_check_stringbytes=1 ;;
348 stringoverrun) ac_gc_check_string_overrun=1 ;;
349 stringfreelist) ac_gc_check_string_free_list=1 ;;
350 xmallocoverrun) ac_xmalloc_overrun=1 ;;
351 conslist) ac_gc_check_cons_list=1 ;;
352 glyphs) ac_glyphs_debug=1 ;;
353 *) AC_MSG_ERROR(unknown check category $check) ;;
358 if test x$ac_enable_checking != x ; then
359 AC_DEFINE(ENABLE_CHECKING, 1,
360 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
362 if test x$ac_gc_check_stringbytes != x ; then
363 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
364 [Define this temporarily to hunt a bug. If defined, the size of
365 strings is redundantly recorded in sdata structures so that it can
366 be compared to the sizes recorded in Lisp strings.])
368 if test x$ac_gc_check_string_overrun != x ; then
369 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
370 [Define this to check for short string overrun.])
372 if test x$ac_gc_check_string_free_list != x ; then
373 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
374 [Define this to check the string free list.])
376 if test x$ac_xmalloc_overrun != x ; then
377 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
378 [Define this to check for malloc buffer overrun.])
380 if test x$ac_gc_check_cons_list != x ; then
381 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
382 [Define this to check for errors in cons list.])
384 if test x$ac_glyphs_debug != x ; then
385 AC_DEFINE(GLYPH_DEBUG, 1,
386 [Define this to enable glyphs debugging code.])
389 AC_ARG_ENABLE(check-lisp-object-type,
390 [AS_HELP_STRING([--enable-check-lisp-object-type],
391 [enable compile time checks for the Lisp_Object data type.
392 This is useful for development for catching certain types of bugs.])],
393 if test "${enableval}" != "no"; then
394 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
395 [Define this to enable compile time checks for the Lisp_Object data type.])
399 dnl The name of this option is unfortunate. It predates, and has no
400 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
401 dnl Actually, it stops it working.
402 dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
403 AC_ARG_ENABLE(profiling,
404 [AS_HELP_STRING([--enable-profiling],
405 [build emacs with low-level, gprof profiling support.
406 Mainly useful for debugging Emacs itself. May not work on
407 all platforms. Stops profiler.el working.])],
408 [ac_enable_profiling="${enableval}"],[])
409 if test x$ac_enable_profiling != x ; then
410 PROFILING_CFLAGS="-DPROFILING=1 -pg"
414 AC_SUBST(PROFILING_CFLAGS)
416 AC_ARG_ENABLE(autodepend,
417 [AS_HELP_STRING([--enable-autodepend],
418 [automatically generate dependencies to .h-files.
419 Requires GNU Make and Gcc. Enabled if GNU Make and Gcc is
421 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
423 AC_ARG_ENABLE(gtk-deprecation-warnings,
424 [AS_HELP_STRING([--enable-gtk-deprecation-warnings],
425 [Show Gtk+/Gdk deprecation warnings for Gtk+ >= 3.0])],
426 [ac_enable_gtk_deprecation_warnings="${enableval}"],[])
428 #### Make srcdir absolute, if it isn't already. It's important to
429 #### avoid running the file name through pwd unnecessarily, since pwd can
430 #### give you automounter prefixes, which can go away. We do all this
431 #### so Emacs can find its files when run uninstalled.
432 ## Make sure CDPATH doesn't affect cd (in case PWD is relative).
435 [[\\/]]* | ?:[[\\/]]*) ;;
437 ## We may be able to use the $PWD environment variable to make this
438 ## absolute. But sometimes PWD is inaccurate.
439 ## Note: we used to use $PWD at the end instead of `pwd`,
440 ## but that tested only for a well-formed and valid PWD,
441 ## it did not object when PWD was well-formed and valid but just wrong.
442 if test ".$PWD" != "." && test ".`(cd "$PWD" ; sh -c pwd)`" = ".`pwd`" ;
446 srcdir=`(cd "$srcdir"; pwd)`
449 * ) srcdir=`(cd "$srcdir"; pwd)` ;;
452 ### Canonicalize the configuration name.
456 configuration=${host_alias-${build_alias-$host}}
458 dnl This used to use changequote, but, apart from `changequote is evil'
459 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
460 dnl the great gob of text. Thus it's not processed for possible expansion.
461 dnl Just make sure the brackets remain balanced.
463 dnl Since Emacs can't find matching pairs of quotes, boundaries are
464 dnl indicated by comments.
468 ### If you add support for a new configuration, add code to this
469 ### switch statement to recognize your configuration name and select
470 ### the appropriate operating system file.
472 ### You would hope that you could choose an s/*.h
473 ### file based on the operating system portion. However, it turns out
474 ### that each s/*.h file is pretty manufacturer-specific.
475 ### So we basically have to have a special case for each
476 ### configuration name.
478 ### As far as handling version numbers on operating systems is
479 ### concerned, make sure things will fail in a fixable way. If
480 ### /etc/MACHINES doesn't say anything about version numbers, be
481 ### prepared to handle anything reasonably. If version numbers
482 ### matter, be sure /etc/MACHINES says something about it.
485 case "${canonical}" in
487 ## GNU/Linux and similar ports
502 ## FreeBSD kernel + glibc based userland
517 ## Apple Darwin / Mac OS X
519 case "${canonical}" in
526 ## Use fink packages if available.
527 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
528 ## if test -d /sw/include && test -d /sw/lib; then
529 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
530 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
539 ## HP 9000 series 700 and 800, running HP/UX
543 hppa*-hp-hpux1[1-9]* )
545 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
549 rs6000-ibm-aix4.[23]* )
552 powerpc-ibm-aix4.[23]* )
555 rs6000-ibm-aix[56]* )
558 powerpc-ibm-aix[56]* )
562 ## Silicon Graphics machines
566 # Without defining _LANGUAGE_C, things get masked out in the headers
567 # so that, for instance, grepping for `free' in stdlib.h fails and
568 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
569 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
574 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
575 | x86_64-*-solaris2* | x86_64-*-sunos5*)
576 case "${canonical}" in
578 amd64-*-*|x86_64-*-*) ;;
582 case "${canonical}" in
583 *-sunos5.6* | *-solaris2.6* )
587 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
589 emacs_check_sunpro_c=yes
591 *-sunos5* | *-solaris* )
593 emacs_check_sunpro_c=yes
596 ## Watch out for a compiler that we know will not work.
597 case "${canonical}" in
598 *-solaris* | *-sunos5* )
599 if [ "x$CC" = x/usr/ucb/cc ]; then
600 ## /usr/ucb/cc doesn't work;
601 ## we should find some other compiler that does work.
609 ## Intel 386 machines where we don't care about the manufacturer.
611 case "${canonical}" in
612 *-darwin* ) opsys=darwin ;;
615 # MinGW overrides and adds some system headers in nt/inc.
616 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
618 *-sysv4.2uw* ) opsys=unixware ;;
619 *-sysv5uw* ) opsys=unixware ;;
620 *-sysv5OpenUNIX* ) opsys=unixware ;;
621 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
630 ### If the code above didn't choose an operating system, just choose
631 ### an operating system based on the configuration name. You really
632 ### only want to use this when you have no idea what the right
633 ### operating system is; if you know what operating systems a machine
634 ### runs, it's cleaner to make it explicit in the case statement
636 if test x"${opsys}" = x; then
637 case "${canonical}" in
638 *-gnu* ) opsys=gnu ;;
648 if test $unported = yes; then
649 AC_MSG_ERROR([Emacs hasn't been ported to `${canonical}' systems.
650 Check `etc/MACHINES' for recognized configuration names.])
654 #### Choose a compiler.
656 dnl Sets GCC=yes if using gcc.
660 if test x$GCC = xyes; then
661 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
663 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
666 dnl This is used in lib/Makefile.am to use nt/gnulib.mk, the
667 dnl alternative to lib/gnulib.mk, so as to avoid generating header files
668 dnl that clash with MinGW.
669 AM_CONDITIONAL([BUILDING_FOR_WINDOWSNT], [test "x$opsys" = "xmingw32"])
671 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
672 # as we don't use them.
673 AC_DEFUN([gl_FCNTL_O_FLAGS])
674 # Avoid gnulib's threadlib module, as we do threads our own way.
675 AC_DEFUN([gl_THREADLIB])
677 # Initialize gnulib right after choosing the compiler.
678 dnl Amongst other things, this sets AR and ARFLAGS.
681 if test "$ac_test_CFLAGS" != set; then
682 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
683 # if -g3 works and the user does not specify CFLAGS.
684 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
687 emacs_g3_CFLAGS='-g3';;
689 emacs_g3_CFLAGS='-g3 -O2';;
693 if test -n "$emacs_g3_CFLAGS"; then
694 emacs_save_CFLAGS=$CFLAGS
695 CFLAGS=$emacs_g3_CFLAGS
696 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
697 [emacs_cv_prog_cc_g3],
698 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
699 [emacs_cv_prog_cc_g3=yes],
700 [emacs_cv_prog_cc_g3=no])])
701 if test $emacs_cv_prog_cc_g3 != yes; then
702 CFLAGS=$emacs_save_CFLAGS
704 if test $opsys = mingw32; then
705 CFLAGS="$CFLAGS -gdwarf-2"
712 # No optimization flag was inferred for this non-GCC compiler.
713 # Try -O. This is needed for xlc on AIX; see Bug#14258.
714 emacs_save_CFLAGS=$CFLAGS
715 test -z "$CFLAGS" || CFLAGS="$CFLAGS "
717 AC_CACHE_CHECK([whether $CC accepts -O],
718 [emacs_cv_prog_cc_o],
719 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
720 [emacs_cv_prog_cc_o=yes],
721 [emacs_cv_prog_cc_o=no])])
722 if test $emacs_cv_prog_cc_o != yes; then
723 CFLAGS=$emacs_save_CFLAGS
728 AC_ARG_ENABLE([gcc-warnings],
729 [AS_HELP_STRING([--enable-gcc-warnings],
730 [turn on lots of GCC warnings/errors. This is intended for
731 developers, and may generate false alarms when used
732 with older or non-GNU development tools.])],
735 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
737 gl_gcc_warnings=$enableval],
741 AC_ARG_ENABLE(link-time-optimization,
742 [AS_HELP_STRING([--enable-link-time-optimization],
743 [build emacs with link-time optimization.
744 This is supported only for GCC since 4.5.0.])],
745 if test "${enableval}" != "no"; then
746 AC_MSG_CHECKING([whether link-time optimization is supported])
748 if test x$GCC = xyes; then
749 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
750 if test x$CPUS != x; then
756 CFLAGS="$CFLAGS $LTO"
757 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
758 [ac_lto_supported=yes], [ac_lto_supported=no])
761 AC_MSG_RESULT([$ac_lto_supported])
762 if test "$ac_lto_supported" = "yes"; then
763 CFLAGS="$CFLAGS $LTO"
767 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
768 # ------------------------------------------------
769 # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
770 # Otherwise, run RUN-IF-NOT-FOUND.
771 AC_DEFUN([gl_GCC_VERSION_IFELSE],
775 #if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
778 # error "your version of gcc is older than $1.$2"
785 # When compiling with GCC, prefer -isystem to -I when including system
786 # include files, to avoid generating useless diagnostics for the files.
787 if test "$gl_gcc_warnings" != yes; then
792 # This, $nw, is the list of warnings we disable.
795 case $with_x_toolkit in
796 lucid | athena | motif)
797 # Old toolkits mishandle 'const'.
798 nw="$nw -Wwrite-strings"
801 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
804 AC_SUBST([WERROR_CFLAGS])
806 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
807 nw="$nw -Woverlength-strings" # Not a problem these days
808 nw="$nw -Wlogical-op" # any use of fwrite provokes this
809 nw="$nw -Wformat-nonliteral" # we do this a lot
810 nw="$nw -Wvla" # warnings in gettext.h
811 nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
812 nw="$nw -Wswitch-default" # Too many warnings for now
813 nw="$nw -Winline" # OK to ignore 'inline'
814 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
815 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
816 # signed overflow has undefined behavior
817 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
818 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
819 nw="$nw -Wbad-function-cast" # These casts are no worse than others.
821 # Emacs doesn't care about shadowing; see
822 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
825 # Emacs's use of alloca inhibits protecting the stack.
826 nw="$nw -Wstack-protector"
828 # The following line should be removable at some point.
829 nw="$nw -Wsuggest-attribute=pure"
831 # clang is unduly picky about some things.
832 AC_CACHE_CHECK([whether the compiler is clang], [emacs_cv_clang],
839 [emacs_cv_clang=yes],
840 [emacs_cv_clang=no])])
841 if test $emacs_cv_clang = yes; then
842 nw="$nw -Wcast-align"
845 gl_MANYWARN_ALL_GCC([ws])
846 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
850 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
851 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
852 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
853 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
854 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
855 gl_WARN_ADD([-Wno-format-nonliteral])
857 # In spite of excluding -Wlogical-op above, it is enabled, as of
858 # gcc 4.5.0 20090517.
859 gl_WARN_ADD([-Wno-logical-op])
861 # More things that clang is unduly picky about.
862 if test $emacs_cv_clang = yes; then
863 gl_WARN_ADD([-Wno-format-extra-args])
864 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
865 gl_WARN_ADD([-Wno-unused-command-line-argument])
866 gl_WARN_ADD([-Wno-unused-value])
869 gl_WARN_ADD([-fdiagnostics-show-option])
870 gl_WARN_ADD([-funit-at-a-time])
872 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
873 AH_VERBATIM([FORTIFY_SOURCE],
874 [/* Enable compile-time and run-time bounds-checking, and some warnings,
875 without upsetting glibc 2.15+. */
876 #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
877 # define _FORTIFY_SOURCE 2
880 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
882 # We use a slightly smaller set of warning options for lib/.
883 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
885 nw="$nw -Wunused-macros"
887 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
888 AC_SUBST([GNULIB_WARN_CFLAGS])
893 dnl Some other nice autoconf tests.
894 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
897 dnl if test "x$RANLIB" = x; then
902 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
903 dnl can be made to directories. This is not relevant for our usage, and
904 dnl excludes some cases that work fine for us. Eg MS Windows or files
905 dnl hosted on AFS, both examples where simple links work, but links to
906 dnl directories fail. We use a cut-down version instead.
909 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
910 rm -f conf$$ conf$$.file
912 LN_S_FILEONLY='cp -p'
914 if (echo >conf$$.file) 2>/dev/null; then
915 if ln -s conf$$.file conf$$ 2>/dev/null; then
916 LN_S_FILEONLY='ln -s'
917 elif ln conf$$.file conf$$ 2>/dev/null; then
922 rm -f conf$$ conf$$.file
924 if test "$LN_S_FILEONLY" = "ln -s"; then
927 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
930 AC_SUBST(LN_S_FILEONLY)
933 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
934 dnl doesn't support links to directories, as in "ln file dir". But that
935 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
936 dnl executables at "make install" time.
937 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
938 dnl for more details.
939 if test "$opsys" = "mingw32"; then
943 AC_PATH_PROG(INSTALL_INFO, install-info, :,
944 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
945 dnl Don't use GZIP, which is used by gzip for additional parameters.
946 AC_PATH_PROG(GZIP_PROG, gzip)
948 if test $opsys = gnu-linux; then
949 AC_PATH_PROG(PAXCTL, paxctl,,
950 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
951 if test "X$PAXCTL" != X; then
952 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
953 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
954 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
955 else AC_MSG_RESULT(no); PAXCTL=""; fi])
959 ## Need makeinfo >= 4.7 (?) to build the manuals.
960 AC_PATH_PROG(MAKEINFO, makeinfo, no)
961 dnl By this stage, configure has already checked for egrep and set EGREP,
962 dnl or exited with an error if no egrep was found.
963 if test "$MAKEINFO" != "no"; then
965 $MAKEINFO --version 2> /dev/null |
966 $EGREP 'texinfo[[^0-9]]*([[1-4]][[0-9]]+|[[5-9]]|4\.[[7-9]]|4\.[[1-6]][[0-9]]+)'
972 ## Makeinfo is unusual. For a released Emacs, the manuals are
973 ## pre-built, and not deleted by the normal clean rules. makeinfo is
974 ## therefore in the category of "special tools" not normally required, which
975 ## configure does not have to check for (eg autoconf itself).
976 ## In a Bazaar checkout on the other hand, the manuals are not included.
977 ## So makeinfo is a requirement to build from Bazaar, and configure
978 ## should test for it as it does for any other build requirement.
979 ## We use the presence of $srcdir/info/emacs to distinguish a release,
980 ## with pre-built manuals, from a Bazaar checkout.
983 if test "$MAKEINFO" = "no"; then
985 if test "x${with_makeinfo}" = "xno"; then
987 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
988 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
989 source tree does not seem to have pre-built manuals in the `info' directory.
990 Either install a suitable version of makeinfo, or re-run configure
991 with the `--without-makeinfo' option to build without the manuals.] )
994 AC_SUBST(HAVE_MAKEINFO)
996 dnl Just so that there is only a single place we need to edit.
1002 dnl Add our options to ac_link now, after it is set up.
1004 if test x$GCC = xyes; then
1005 test "x$GCC_LINK_TEST_OPTIONS" != x && \
1006 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1008 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
1009 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1012 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
1013 dnl If we can link with the flag, it shouldn't do any harm anyhow.
1014 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
1015 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
1016 dnl if not built to support GNU ld.
1018 late_LDFLAGS=$LDFLAGS
1019 if test x$GCC = xyes; then
1020 LDFLAGS="$LDFLAGS -Wl,-znocombreloc"
1022 LDFLAGS="$LDFLAGS -znocombreloc"
1025 AC_MSG_CHECKING([for -znocombreloc])
1026 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1027 [AC_MSG_RESULT(yes)],
1028 LDFLAGS=$late_LDFLAGS
1029 [AC_MSG_RESULT(no)])
1032 dnl The function dump-emacs will not be defined and temacs will do
1033 dnl (load "loadup") automatically unless told otherwise.
1034 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
1036 your-opsys-here) CANNOT_DUMP=yes ;;
1039 test "$CANNOT_DUMP" = "yes" && \
1040 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1042 AC_SUBST(CANNOT_DUMP)
1045 UNEXEC_OBJ=unexelf.o
1047 # MSDOS uses unexcoff.o
1049 UNEXEC_OBJ=unexaix.o
1055 UNEXEC_OBJ=unexmacosx.o
1058 UNEXEC_OBJ=unexhp9k800.o
1061 UNEXEC_OBJ=unexw32.o
1064 # Use the Solaris dldump() function, called from unexsol.c, to dump
1065 # emacs, instead of the generic ELF dump code found in unexelf.c.
1066 # The resulting binary has a complete symbol table, and is better
1067 # for debugging and other observability tools (debuggers, pstack, etc).
1069 # If you encounter a problem using dldump(), please consider sending
1070 # a message to the OpenSolaris tools-linking mailing list:
1071 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1073 # It is likely that dldump() works with older Solaris too, but this has
1074 # not been tested, so for now this change is for Solaris 10 or newer.
1075 UNEXEC_OBJ=unexsol.o
1082 ## Let `ld' find image libs and similar things in /usr/local/lib.
1083 ## The system compiler, GCC, has apparently been modified to not
1084 ## look there, contrary to what a stock GCC would do.
1085 ### It's not our place to do this. See bug#10313#17.
1086 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1091 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1092 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1096 ### It's not our place to do this. See bug#10313#17.
1097 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1102 ## Han Boetes <han@boetes.org> says this is necessary,
1103 ## otherwise Emacs dumps core on elf systems.
1104 LD_SWITCH_SYSTEM="-Z"
1107 AC_SUBST(LD_SWITCH_SYSTEM)
1109 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1111 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1112 ## which has not been defined yet. When this was handled with cpp,
1113 ## it was expanded to null when configure sourced the s/*.h file.
1114 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1115 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1116 ## (or somesuch), but because it is supposed to go at the _front_
1117 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1118 ## Compare with the gnu-linux case below, which added to the end
1119 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1120 ## LD_SWITCH_SYSTEM_TEMACS.
1123 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1130 AC_CHECK_DECL([__ELF__])
1131 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1132 ## With ELF, make sure that all common symbols get allocated to in the
1133 ## data section. Otherwise, the dump of temacs may miss variables in
1134 ## the shared library that have been initialized. For example, with
1135 ## GNU libc, __malloc_initialized would normally be resolved to the
1136 ## shared library's .bss section, which is fatal.
1137 if test "x$GCC" = "xyes"; then
1138 C_SWITCH_MACHINE="-fno-common"
1140 AC_MSG_ERROR([What gives? Fix me if DEC Unix supports ELF now.])
1143 UNEXEC_OBJ=unexalpha.o
1147 AC_SUBST(C_SWITCH_MACHINE)
1149 AC_SUBST(UNEXEC_OBJ)
1152 ## Some programs in src produce warnings saying certain subprograms
1153 ## are too complex and need a MAXMEM value greater than 2000 for
1154 ## additional optimization. --nils@exp-math.uni-essen.de
1155 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1156 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1157 test "$opsys" = "mingw32" && C_SWITCH_SYSTEM="-mtune=pentium4"
1158 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1159 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1160 AC_SUBST(C_SWITCH_SYSTEM)
1165 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1166 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1168 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1170 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1172 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1174 ## Motif needs -lgen.
1175 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1178 AC_SUBST(LIBS_SYSTEM)
1180 ### Make sure subsequent tests use flags consistent with the build flags.
1182 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1183 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1185 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1188 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C89 or better.
1189 AC_DEFUN([AC_TYPE_SIZE_T])
1190 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1191 AC_DEFUN([AC_TYPE_UID_T])
1195 dnl Current possibilities handled by sed (aix4-2 -> aix,
1196 dnl gnu-linux -> gnu/linux, etc.):
1197 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1198 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1199 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1206 ## Adding -lm confuses the dynamic linker, so omit it.
1209 freebsd | dragonfly )
1210 SYSTEM_TYPE=berkeley-unix
1212 gnu-linux | gnu-kfreebsd )
1214 hpux10-20 | hpux11 )
1218 SYSTEM_TYPE=windows-nt
1220 dnl NB this may be adjusted below.
1222 SYSTEM_TYPE=berkeley-unix
1226 SYSTEM_TYPE=usg-unix-v
1232 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1233 [The type of system you are compiling for; sets `system-type'.])
1236 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1237 pre_PKG_CONFIG_LIBS=$LIBS
1239 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
1241 dnl This function definition taken from Gnome 2.0
1242 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
1243 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
1244 dnl also defines GSTUFF_PKG_ERRORS on error
1245 AC_DEFUN([PKG_CHECK_MODULES], [
1248 if test "$PKG_CONFIG" = "no" ; then
1249 ifelse([$4], , [AC_MSG_ERROR([
1250 *** The pkg-config script could not be found. Make sure it is in your path, or give the full name of 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])
1252 PKG_CONFIG_MIN_VERSION=0.9.0
1253 if "$PKG_CONFIG" --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
1254 AC_MSG_CHECKING(for $2)
1256 if "$PKG_CONFIG" --exists "$2" 2>&AS_MESSAGE_LOG_FD &&
1257 $1_CFLAGS=`"$PKG_CONFIG" --cflags "$2" 2>&AS_MESSAGE_LOG_FD` &&
1258 $1_LIBS=`"$PKG_CONFIG" --libs "$2" 2>&AS_MESSAGE_LOG_FD`; then
1265 $1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1266 $1_LIBS=`AS_ECHO(["$$1_LIBS"]) | sed -e 's,///*,/,g'`
1267 AC_MSG_RESULT([yes CFLAGS='$$1_CFLAGS' LIBS='$$1_LIBS'])
1273 ## If we have a custom action on failure, don't print errors, but
1274 ## do set a variable so people can do so. Do it in a subshell
1275 ## to capture any diagnostics in invoking pkg-config.
1276 $1_PKG_ERRORS=`("$PKG_CONFIG" --print-errors "$2") 2>&1`
1277 ifelse([$4], ,echo "$$1_PKG_ERRORS",)
1283 echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
1284 echo "*** See http://www.freedesktop.org/software/pkgconfig"
1288 if test $succeeded = yes; then
1289 ifelse([$3], , :, [$3])
1291 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.])], [$4])
1296 if test "${with_sound}" != "no"; then
1297 # Sound support for GNU/Linux, the free BSDs, and MinGW.
1298 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h],
1299 have_sound_header=yes, [], [
1301 #define WIN32_LEAN_AND_MEAN
1302 #include <windows.h>
1305 if test "${with_sound}" = "ossaudio" || test "${with_sound}" = "yes"; then
1306 # Emulation library used on NetBSD.
1307 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1308 test "${with_sound}" = "ossaudio" && test -z "$LIBSOUND" && \
1309 AC_MSG_ERROR([ossaudio sound support requested but not found.])
1310 dnl FIXME? If we did find ossaudio, should we set with_sound=ossaudio?
1311 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1315 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1317 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1318 PKG_CHECK_MODULES(ALSA, $ALSA_MODULES, HAVE_ALSA=yes, HAVE_ALSA=no)
1319 if test $HAVE_ALSA = yes; then
1320 SAVE_CFLAGS="$CFLAGS"
1322 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1323 LIBS="$ALSA_LIBS $LIBS"
1324 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1325 emacs_alsa_normal=yes,
1326 emacs_alsa_normal=no)
1327 if test "$emacs_alsa_normal" != yes; then
1328 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1329 [[snd_lib_error_set_handler (0);]])],
1330 emacs_alsa_subdir=yes,
1331 emacs_alsa_subdir=no)
1332 if test "$emacs_alsa_subdir" != yes; then
1333 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1335 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1338 CFLAGS="$SAVE_CFLAGS"
1340 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1341 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1342 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1343 elif test "${with_sound}" = "alsa"; then
1344 AC_MSG_ERROR([ALSA sound support requested but not found.])
1346 fi dnl with_sound = alsa|yes
1348 dnl Define HAVE_SOUND if we have sound support. We know it works and
1349 dnl compiles only on the specified platforms. For others, it
1350 dnl probably doesn't make sense to try.
1351 dnl FIXME So surely we should bypass this whole section if not using
1352 dnl one of these platforms?
1353 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1355 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1356 dnl Adjust the --with-sound help text if you change this.
1357 gnu-linux|freebsd|netbsd|mingw32)
1358 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1364 AC_SUBST(CFLAGS_SOUND)
1367 dnl checks for header files
1368 AC_CHECK_HEADERS_ONCE(
1372 sys/utsname.h pwd.h utmp.h util.h)
1374 AC_MSG_CHECKING(if personality LINUX32 can be set)
1375 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1376 emacs_cv_personality_linux32=yes,
1377 emacs_cv_personality_linux32=no)
1378 AC_MSG_RESULT($emacs_cv_personality_linux32)
1380 if test $emacs_cv_personality_linux32 = yes; then
1381 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1382 [Define to 1 if personality LINUX32 can be set.])
1385 dnl On Solaris 8 there's a compilation warning for term.h because
1386 dnl it doesn't define `bool'.
1387 AC_CHECK_HEADERS(term.h, , , -)
1389 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1391 if test $ac_cv_have_decl_sys_siglist != yes; then
1392 # For Tru64, at least:
1393 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1398 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1399 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1400 #if HAVE_SYS_SOCKET_H
1401 #include <sys/socket.h>
1403 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1404 #if HAVE_SYS_SOCKET_H
1405 #include <sys/socket.h>
1407 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1408 #if HAVE_SYS_SOCKET_H
1409 #include <sys/socket.h>
1412 dnl checks for structure members
1413 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1414 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1415 struct ifreq.ifr_addr,
1416 struct ifreq.ifr_addr.sa_len], , ,
1417 [AC_INCLUDES_DEFAULT
1418 #if HAVE_SYS_SOCKET_H
1419 #include <sys/socket.h>
1425 dnl Check for endianness.
1426 dnl AC_C_BIGENDIAN is done by gnulib.
1428 dnl check for Make feature
1429 dnl AC_PROG_MAKE_SET is done by Automake.
1434 dnl check for GNU Make if we have GCC and autodepend is on.
1435 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1436 AC_MSG_CHECKING([whether we are using GNU Make])
1438 testval=`${MAKE-make} --version 2>/dev/null | grep 'GNU Make'`
1439 if test "x$testval" != x; then
1442 ac_enable_autodepend=no
1444 AC_MSG_RESULT([$HAVE_GNU_MAKE])
1445 if test $HAVE_GNU_MAKE = yes; then
1446 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1447 SAVE_CFLAGS="$CFLAGS"
1448 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1449 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1450 CFLAGS="$SAVE_CFLAGS"
1451 test -f deps.d || ac_enable_autodepend=no
1453 AC_MSG_RESULT([$ac_enable_autodepend])
1455 if test $ac_enable_autodepend = yes; then
1456 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1457 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1458 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1459 deps_frag=autodeps.mk
1462 deps_frag=$srcdir/src/$deps_frag
1465 AC_SUBST_FILE(deps_frag)
1468 lisp_frag=$srcdir/src/lisp.mk
1469 AC_SUBST_FILE(lisp_frag)
1472 dnl checks for operating system services
1473 AC_SYS_LONG_FILE_NAMES
1475 #### Choose a window system.
1477 ## We leave window_system equal to none if
1478 ## we end up building without one. Any new window system should
1479 ## set window_system to an appropriate value and add objects to
1480 ## window-system-specific substs.
1484 if test "$no_x" != yes; then
1488 LD_SWITCH_X_SITE_RPATH=
1489 if test "${x_libraries}" != NONE; then
1490 if test -n "${x_libraries}"; then
1491 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1492 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1494 x_default_search_path=""
1495 x_search_path=${x_libraries}
1496 if test -z "${x_search_path}"; then
1497 x_search_path=/usr/lib
1499 for x_library in `echo ${x_search_path}: | \
1500 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1502 ${x_library}/X11/%L/%T/%N%C%S:\
1503 ${x_library}/X11/%l/%T/%N%C%S:\
1504 ${x_library}/X11/%T/%N%C%S:\
1505 ${x_library}/X11/%L/%T/%N%S:\
1506 ${x_library}/X11/%l/%T/%N%S:\
1507 ${x_library}/X11/%T/%N%S"
1508 if test x"${x_default_search_path}" = x; then
1509 x_default_search_path=${x_search_path}
1511 x_default_search_path="${x_search_path}:${x_default_search_path}"
1515 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1517 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1518 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1521 if test x"${x_includes}" = x; then
1522 bitmapdir=/usr/include/X11/bitmaps
1524 # accumulate include directories that have X11 bitmap subdirectories
1526 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1527 if test -d "${bmd}/X11/bitmaps"; then
1528 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1530 if test -d "${bmd}/bitmaps"; then
1531 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1534 if test ${bmd_acc} != "dummyval"; then
1535 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1542 tmp_CPPFLAGS="$CPPFLAGS"
1543 tmp_CFLAGS="$CFLAGS"
1544 CPPFLAGS="$CPPFLAGS -x objective-c"
1545 CFLAGS="$CFLAGS -x objective-c"
1548 if test "${with_ns}" != no; then
1549 if test "${opsys}" = darwin; then
1551 ns_appdir=`pwd`/nextstep/Emacs.app
1552 ns_appbindir=${ns_appdir}/Contents/MacOS
1553 ns_appresdir=${ns_appdir}/Contents/Resources
1554 ns_appsrc=Cocoa/Emacs.base
1555 elif test -f $GNUSTEP_CONFIG_FILE; then
1557 ns_appdir=`pwd`/nextstep/Emacs.app
1558 ns_appbindir=${ns_appdir}
1559 ns_appresdir=${ns_appdir}/Resources
1560 ns_appsrc=GNUstep/Emacs.base
1561 dnl FIXME sourcing this several times in subshells seems inefficient.
1562 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1563 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1564 dnl I seemed to need these as well with GNUstep-startup 0.25.
1565 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1566 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1567 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1568 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1569 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1570 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1571 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1572 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1573 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1574 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1575 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1576 dnl If they had chosen to either define it or not, we could have
1577 dnl just used AC_CHECK_DECL here.
1578 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1579 emacs_cv_objc_exceptions,
1580 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1581 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1585 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1586 if test $emacs_cv_objc_exceptions = yes; then
1587 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1588 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1589 [Define if GNUstep uses ObjC exceptions.])
1590 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1594 dnl This is only used while we test the NS headers, it gets reset below.
1595 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1597 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1598 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1599 files are missing or cannot be compiled.])])
1601 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1603 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1604 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
1607 #error "OSX 10.4 or newer required"
1611 ns_osx_have_104=yes,
1613 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1615 ns_have_nsinteger=yes,
1616 ns_have_nsinteger=no)
1617 if test $ns_osx_have_104 = no; then
1618 AC_MSG_ERROR([`OSX 10.4 or newer is required']);
1620 if test $ns_have_nsinteger = yes; then
1621 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1625 AC_SUBST(LIBS_GNUSTEP)
1627 INSTALL_ARCH_INDEP_EXTRA=install-etc
1628 ns_self_contained=no
1631 if test "${HAVE_NS}" = yes; then
1632 if test "$with_toolkit_scroll_bars" = "no"; then
1633 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1636 window_system=nextstep
1637 # set up packaging dirs
1638 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1639 ns_self_contained=yes
1640 prefix=${ns_appresdir}
1641 exec_prefix=${ns_appbindir}
1642 dnl This one isn't really used, only archlibdir is.
1643 libexecdir="\${ns_appbindir}/libexec"
1644 archlibdir="\${ns_appbindir}/libexec"
1645 etcdocdir="\${ns_appresdir}/etc"
1646 etcdir="\${ns_appresdir}/etc"
1647 dnl FIXME maybe set datarootdir instead.
1648 dnl That would also get applications, icons, man.
1649 infodir="\${ns_appresdir}/info"
1650 mandir="\${ns_appresdir}/man"
1651 lispdir="\${ns_appresdir}/lisp"
1652 leimdir="\${ns_appresdir}/leim"
1653 INSTALL_ARCH_INDEP_EXTRA=
1655 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o"
1657 CFLAGS="$tmp_CFLAGS"
1658 CPPFLAGS="$tmp_CPPFLAGS"
1659 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1660 AC_SUBST(ns_self_contained)
1662 AC_SUBST(NS_OBJC_OBJ)
1673 if test "${with_w32}" != no; then
1676 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1677 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1678 cannot be found.])])
1681 ## Using --with-w32 with MinGW is a no-op, but we allow it.
1684 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
1689 if test "${opsys}" = "mingw32"; then
1690 AC_MSG_CHECKING([whether Windows API headers are recent enough])
1691 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1692 #include <windows.h>
1693 #include <usp10.h>]],
1694 [[PIMAGE_NT_HEADERS pHeader;
1695 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
1696 [emacs_cv_w32api=yes
1699 AC_MSG_RESULT($emacs_cv_w32api)
1700 if test "${emacs_cv_w32api}" = "no"; then
1701 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
1712 if test "${HAVE_W32}" = "yes"; then
1713 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1714 AC_CHECK_TOOL(WINDRES, [windres],
1715 [AC_MSG_ERROR([No resource compiler found.])])
1716 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1717 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1718 EMACSRES="emacs.res"
1719 case "$canonical" in
1720 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
1721 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
1723 UPDATE_MANIFEST=update-game-score.exe.manifest
1724 if test "${opsys}" = "cygwin"; then
1725 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1726 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1727 # Tell the linker that emacs.res is an object (which we compile from
1728 # the rc file), not a linker script.
1729 W32_RES_LINK="-Wl,emacs.res"
1731 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
1732 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
1733 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
1734 W32_RES_LINK="\$(EMACSRES)"
1735 CLIENTRES="emacsclient.res"
1736 CLIENTW="emacsclientw\$(EXEEXT)"
1737 FIRSTFILE_OBJ=firstfile.o
1740 LIBS_ECLIENT="-lcomctl32"
1741 LIB_WSOCK32="-lwsock32"
1742 NTLIB="ntlib.$ac_objext"
1743 XARGS_LIMIT="-s 10000"
1749 AC_SUBST(EMACS_MANIFEST)
1750 AC_SUBST(UPDATE_MANIFEST)
1753 AC_SUBST(W32_RES_LINK)
1754 AC_SUBST(FIRSTFILE_OBJ)
1757 AC_SUBST(LIBS_ECLIENT)
1758 AC_SUBST(LIB_WSOCK32)
1760 AC_SUBST(XARGS_LIMIT)
1762 if test "${HAVE_W32}" = "yes"; then
1767 ## $window_system is now set to the window system we will
1775 case "${window_system}" in
1780 case "${with_x_toolkit}" in
1781 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1782 motif ) USE_X_TOOLKIT=MOTIF ;;
1784 term_header=gtkutil.h
1785 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1786 dnl USE_X_TOOLKIT is set.
1787 USE_X_TOOLKIT=none ;;
1788 gtk2 ) with_gtk2=yes
1789 term_header=gtkutil.h
1790 USE_X_TOOLKIT=none ;;
1791 gtk3 ) with_gtk3=yes
1792 term_header=gtkutil.h
1793 USE_X_TOOLKIT=none ;;
1794 no ) USE_X_TOOLKIT=none ;;
1795 dnl If user did not say whether to use a toolkit, make this decision later:
1796 dnl use the toolkit if we have gtk, or X11R5 or newer.
1797 * ) USE_X_TOOLKIT=maybe ;;
1801 term_header=nsterm.h
1804 term_header=w32term.h
1808 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1809 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1810 if test "$HAVE_XSERVER" = true ||
1811 test -n "$DISPLAY" ||
1812 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1813 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1814 were found. You should install the relevant development files for X
1815 and for the toolkit you want, such as Gtk+, Lesstif or Motif. Also make
1816 sure you have development files for image handling, i.e.
1817 tiff, gif, jpeg, png and xpm.
1818 If you are sure you want Emacs compiled without X window support, pass
1824 ### If we're using X11, we should use the X menu package.
1827 yes ) HAVE_MENUS=yes ;;
1830 # Does the opsystem file prohibit the use of the GNU malloc?
1831 # Assume not, until told otherwise.
1835 [whether malloc is Doug Lea style],
1836 [emacs_cv_var_doug_lea_malloc],
1839 [[#include <malloc.h>
1840 static void hook (void) {}]],
1841 [[malloc_set_state (malloc_get_state ());
1842 __after_morecore_hook = hook;
1843 __malloc_initialize_hook = hook;]])],
1844 [emacs_cv_var_doug_lea_malloc=yes],
1845 [emacs_cv_var_doug_lea_malloc=no])])
1846 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1849 dnl See comments in aix4-2.h about maybe using system malloc there.
1852 ## darwin ld insists on the use of malloc routines in the System framework.
1853 darwin|sol2-10) system_malloc=yes ;;
1856 if test "${system_malloc}" = "yes"; then
1857 AC_DEFINE(SYSTEM_MALLOC, 1, [Define to use system malloc.])
1860 (The GNU allocators don't work with this system configuration.)"
1864 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1865 VMLIMIT_OBJ=vm-limit.o
1867 AC_CHECK_HEADERS([sys/vlimit.h])
1868 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
1871 [[extern char data_start[]; char ch;]],
1872 [[return data_start < &ch;]])],
1873 [emacs_cv_data_start=yes],
1874 [emacs_cv_data_start=no])])
1875 if test $emacs_cv_data_start = yes; then
1876 AC_DEFINE([HAVE_DATA_START], 1,
1877 [Define to 1 if data_start is the address of the start
1878 of the main data segment.])
1881 AC_SUBST(GMALLOC_OBJ)
1882 AC_SUBST(VMLIMIT_OBJ)
1884 if test "$doug_lea_malloc" = "yes" ; then
1885 if test "$GNU_MALLOC" = yes ; then
1887 (Using Doug Lea's new malloc from the GNU C Library.)"
1889 AC_DEFINE(DOUG_LEA_MALLOC, 1,
1890 [Define to 1 if you are using the GNU C Library.])
1892 ## Use mmap directly for allocating larger buffers.
1893 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
1894 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
1895 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
1897 gnu*) REL_ALLOC=no ;;
1901 if test x"${REL_ALLOC}" = x; then
1902 REL_ALLOC=${GNU_MALLOC}
1905 use_mmap_for_buffers=no
1907 cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
1911 if test $use_mmap_for_buffers = yes; then
1912 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
1916 LIBS="$LIBS_SYSTEM $LIBS"
1918 dnl If found, this adds -ldnet to LIBS, which Autoconf uses for checks.
1919 AC_CHECK_LIB(dnet, dnet_ntoa)
1920 dnl This causes -lresolv to get used in subsequent tests,
1921 dnl which causes failures on some systems such as HPUX 9.
1922 dnl AC_CHECK_LIB(resolv, gethostbyname)
1924 dnl FIXME replace main with a function we actually want from this library.
1925 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
1927 dnl Check if pthreads is available.
1929 AC_CHECK_HEADERS_ONCE(pthread.h)
1930 if test "$ac_cv_header_pthread_h"; then
1931 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
1932 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
1933 dnl testing for pthread_self if Emacs uses gmalloc.c.
1934 if test "$GMALLOC_OBJ" = gmalloc.o; then
1935 emacs_pthread_function=pthread_atfork
1937 emacs_pthread_function=pthread_self
1939 AC_CHECK_LIB(pthread, $emacs_pthread_function, HAVE_PTHREAD=yes)
1941 if test "$HAVE_PTHREAD" = yes; then
1942 case "${canonical}" in
1944 *) LIB_PTHREAD="-lpthread"
1945 LIBS="$LIB_PTHREAD $LIBS" ;;
1947 AC_DEFINE(HAVE_PTHREAD, 1, [Define to 1 if you have pthread (-lpthread).])
1949 AC_SUBST([LIB_PTHREAD])
1951 AC_CHECK_LIB(pthreads, cma_open)
1953 ## Note: when using cpp in s/aix4.2.h, this definition depended on
1954 ## HAVE_LIBPTHREADS. That was not defined earlier in configure when
1955 ## the system file was sourced. Hence the value of LIBS_SYSTEM
1956 ## added to LIBS in configure would never contain the pthreads part,
1957 ## but the value used in Makefiles might. FIXME?
1959 ## -lpthreads seems to be necessary for Xlib in X11R6, and should
1960 ## be harmless on older versions of X where it happens to exist.
1961 test "$opsys" = "aix4-2" && \
1962 test $ac_cv_lib_pthreads_cma_open = yes && \
1963 LIBS_SYSTEM="$LIBS_SYSTEM -lpthreads"
1965 dnl Check for need for bigtoc support on IBM AIX
1969 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1971 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1972 *) gdb_cv_bigtoc=-bbigtoc ;;
1975 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1976 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
1981 # Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
1982 # used for the tests that follow. We set them back to REAL_CFLAGS and
1983 # REAL_CPPFLAGS later on.
1985 REAL_CFLAGS="$CFLAGS"
1986 REAL_CPPFLAGS="$CPPFLAGS"
1988 if test "${HAVE_X11}" = "yes"; then
1989 DEFS="$C_SWITCH_X_SITE $DEFS"
1990 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
1992 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
1993 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
1995 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
1996 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
1997 # but it's more convenient here to set LD_RUN_PATH since this
1998 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
1999 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2000 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2004 if test "${opsys}" = "gnu-linux"; then
2005 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2006 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2007 [[XOpenDisplay ("foo");]])],
2008 [xgnu_linux_first_failure=no],
2009 [xgnu_linux_first_failure=yes])
2010 if test "${xgnu_linux_first_failure}" = "yes"; then
2011 OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
2012 OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
2013 OLD_CPPFLAGS="$CPPFLAGS"
2015 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2016 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2017 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2018 LIBS="$LIBS -b i486-linuxaout"
2019 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2020 [[XOpenDisplay ("foo");]])],
2021 [xgnu_linux_second_failure=no],
2022 [xgnu_linux_second_failure=yes])
2023 if test "${xgnu_linux_second_failure}" = "yes"; then
2024 # If we get the same failure with -b, there is no use adding -b.
2025 # So take it out. This plays safe.
2026 LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
2027 C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
2028 CPPFLAGS="$OLD_CPPFLAGS"
2039 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2040 # header files included from there.
2041 AC_MSG_CHECKING(for Xkb)
2042 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2043 #include <X11/XKBlib.h>]],
2044 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2045 emacs_xkb=yes, emacs_xkb=no)
2046 AC_MSG_RESULT($emacs_xkb)
2047 if test $emacs_xkb = yes; then
2048 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2051 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2052 XScreenNumberOfScreen)
2055 if test "${window_system}" = "x11"; then
2056 AC_MSG_CHECKING(X11 version 6)
2057 AC_CACHE_VAL(emacs_cv_x11_version_6,
2058 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2059 [[#if XlibSpecificationRelease < 6
2062 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2063 if test $emacs_cv_x11_version_6 = yes; then
2064 AC_MSG_RESULT(6 or newer)
2065 AC_DEFINE(HAVE_X11R6, 1,
2066 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2067 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2068 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2072 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2073 [Define if you have usable X11R6-style XIM support.])
2077 AC_MSG_RESULT(before 6)
2082 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
2084 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2085 if test "${with_rsvg}" != "no"; then
2086 RSVG_REQUIRED=2.11.0
2087 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2089 PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, HAVE_RSVG=yes, :)
2090 AC_SUBST(RSVG_CFLAGS)
2093 if test $HAVE_RSVG = yes; then
2094 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2095 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2096 LIBS="$RSVG_LIBS $LIBS"
2102 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes"; then
2103 if test "${with_imagemagick}" != "no"; then
2104 ## 6.2.8 is the earliest version known to work, but earlier versions
2105 ## might work - let us know if you find one.
2106 ## 6.0.7 does not work. See bug#7955.
2107 ## 6.8.2 makes Emacs crash; see Bug#13867.
2108 IMAGEMAGICK_MODULE="Wand >= 6.2.8 Wand != 6.8.2"
2109 PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
2110 AC_SUBST(IMAGEMAGICK_CFLAGS)
2111 AC_SUBST(IMAGEMAGICK_LIBS)
2113 if test $HAVE_IMAGEMAGICK = yes; then
2114 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2115 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2116 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2117 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
2125 gtk_term_header=$term_header
2128 if test "${opsys}" != "mingw32"; then
2129 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2132 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2134 dnl Checks for libraries.
2135 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
2136 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2137 AC_MSG_ERROR($GTK_PKG_ERRORS)
2139 if test "$pkg_check_gtk" = "yes"; then
2140 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2141 GTK_OBJ=emacsgtkfixed.o
2142 gtk_term_header=gtkutil.h
2143 USE_GTK_TOOLKIT="GTK3"
2144 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2145 GTK_CFLAGS="$GTK_CFLAGS -DGDK_DISABLE_DEPRECATION_WARNINGS"
2146 GTK_CFLAGS="$GTK_CFLAGS -DGLIB_DISABLE_DEPRECATION_WARNINGS"
2150 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2154 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2157 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2159 dnl Checks for libraries.
2160 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
2161 if test "$pkg_check_gtk" = "no" &&
2162 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2164 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2166 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2170 if test x"$pkg_check_gtk" = xyes; then
2172 AC_SUBST(GTK_CFLAGS)
2174 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2175 CFLAGS="$CFLAGS $GTK_CFLAGS"
2176 LIBS="$GTK_LIBS $LIBS"
2177 dnl Try to compile a simple GTK program.
2178 AC_MSG_CHECKING([whether GTK compiles])
2182 [[/* Check the Gtk and Glib APIs. */
2183 #include <gtk/gtk.h>
2184 #include <glib-object.h>
2186 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2190 GtkSettings *gs = 0;
2191 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2192 strict C prohibits this. Use gtk_main_iteration to test that the
2193 libraries are there. */
2194 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2195 0, 0, 0, G_CALLBACK (callback), 0))
2196 gtk_main_iteration ();
2199 AC_MSG_RESULT([$GTK_COMPILES])
2200 if test "${GTK_COMPILES}" != "yes"; then
2202 if test "$USE_X_TOOLKIT" != "maybe"; then
2203 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2207 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2208 GTK_OBJ="gtkutil.o $GTK_OBJ"
2209 term_header=$gtk_term_header
2211 if "$PKG_CONFIG" --atleast-version=2.10 gtk+-2.0; then
2214 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2215 closing open displays. This is no problem if you just use
2216 one display, but if you use more than one and close one of them
2226 if test "${HAVE_GTK}" = "yes"; then
2228 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2229 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2230 if test "$with_toolkit_scroll_bars" != no; then
2231 with_toolkit_scroll_bars=yes
2234 dnl Check if we have the old file selection dialog declared and
2235 dnl in the link library. In 2.x it may be in the library,
2236 dnl but not declared if deprecated featured has been selected out.
2237 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2238 HAVE_GTK_FILE_SELECTION=no
2239 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2240 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2241 #include <gtk/gtk.h>])
2242 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2243 AC_CHECK_FUNCS(gtk_file_selection_new)
2246 dnl Same as above for gtk_handle_box.
2247 HAVE_GTK_HANDLE_BOX=no
2248 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2249 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2250 #include <gtk/gtk.h>])
2251 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2252 AC_CHECK_FUNCS(gtk_handle_box_new)
2255 dnl Same as above for gtk_tearoff_menu_item.
2256 HAVE_GTK_TEAROFF_MENU_ITEM=no
2257 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2258 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2259 #include <gtk/gtk.h>])
2260 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2261 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2264 dnl Check for functions introduced in 2.14 and later.
2265 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2266 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2267 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2268 gtk_orientable_set_orientation \
2269 gtk_window_set_has_resize_grip)
2271 term_header=gtkutil.h
2279 if test "${with_xwidgets}" != "no"; then
2280 echo "xwidgets enabled, checking webkit, and others"
2282 AC_DEFINE(HAVE_XWIDGETS, 1, [Define to 1 if you have xwidgets support.])
2285 # - enable only if gtk/gtk3 enabled
2287 # - only webkit_osr is good so remove plain webkit laterish
2289 #webkit version for gtk3.
2290 WEBKIT_REQUIRED=1.4.0
2291 WEBKIT_MODULES="webkitgtk-3.0 >= $WEBKIT_REQUIRED"
2293 if test "${with_gtk3}" = "yes"; then
2294 PKG_CHECK_MODULES(WEBKIT, $WEBKIT_MODULES, HAVE_WEBKIT=yes, HAVE_WEBKIT=no)
2295 if test $HAVE_WEBKIT = yes; then
2296 AC_DEFINE(HAVE_WEBKIT_OSR, 1, [Define to 1 if you have webkit_osr support.])
2301 GIR_MODULES="gobject-introspection-1.0 >= $GIR_REQUIRED"
2302 PKG_CHECK_MODULES(GIR, $GIR_MODULES, HAVE_GIR=yes, HAVE_GIR=no)
2303 if test $HAVE_GIR = yes; then
2304 AC_DEFINE(HAVE_GIR, 1, [Define to 1 if you have GIR support.])
2311 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2312 dnl other platforms.
2315 if test "${with_dbus}" = "yes"; then
2316 PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
2317 if test "$HAVE_DBUS" = yes; then
2318 LIBS="$LIBS $DBUS_LIBS"
2319 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2320 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2321 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2323 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2324 dbus_type_is_valid \
2325 dbus_validate_bus_name \
2326 dbus_validate_path \
2327 dbus_validate_interface \
2328 dbus_validate_member)
2334 dnl GSettings has been tested under GNU/Linux only.
2336 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2337 PKG_CHECK_MODULES(GSETTINGS, gio-2.0 >= 2.26, HAVE_GSETTINGS=yes, HAVE_GSETTINGS=no)
2338 if test "$HAVE_GSETTINGS" = "yes"; then
2339 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2340 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2341 SETTINGS_LIBS="$GSETTINGS_LIBS"
2345 dnl GConf has been tested under GNU/Linux only.
2346 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2348 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2349 PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
2350 if test "$HAVE_GCONF" = yes; then
2351 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2352 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2353 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2354 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2358 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2359 PKG_CHECK_MODULES(GOBJECT, gobject-2.0 >= 2.0, HAVE_GOBJECT=yes, HAVE_GOBJECT=no)
2360 if test "$HAVE_GOBJECT" = "yes"; then
2361 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2362 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2364 SAVE_CFLAGS="$CFLAGS"
2366 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2367 LIBS="$SETTINGS_LIBS $LIBS"
2368 AC_CHECK_FUNCS([g_type_init])
2369 CFLAGS="$SAVE_CFLAGS"
2372 AC_SUBST(SETTINGS_CFLAGS)
2373 AC_SUBST(SETTINGS_LIBS)
2376 dnl SELinux is available for GNU/Linux only.
2379 if test "${with_selinux}" = "yes"; then
2380 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2381 if test "$HAVE_LIBSELINUX" = yes; then
2382 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2383 LIBSELINUX_LIBS=-lselinux
2386 AC_SUBST(LIBSELINUX_LIBS)
2389 if test "${with_gnutls}" = "yes" ; then
2390 PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6], HAVE_GNUTLS=yes, HAVE_GNUTLS=no)
2391 if test "${HAVE_GNUTLS}" = "yes"; then
2392 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2395 # Windows loads GnuTLS dynamically
2396 if test "${opsys}" = "mingw32"; then
2399 CFLAGS="$CFLAGS $LIBGNUTLS_CFLAGS"
2400 LIBS="$LIBGNUTLS_LIBS $LIBS"
2404 AC_SUBST(LIBGNUTLS_LIBS)
2405 AC_SUBST(LIBGNUTLS_CFLAGS)
2410 dnl FIXME? Don't auto-detect on NS, but do allow someone to specify
2411 dnl a particular library. This doesn't make much sense?
2412 if test "${with_ns}" = yes && test ${with_file_notification} = yes; then
2413 with_file_notification=no
2416 dnl MS Windows native file monitor is available for mingw32 only.
2417 case $with_file_notification,$opsys in
2418 w32,* | yes,mingw32)
2419 AC_CHECK_HEADER(windows.h)
2420 if test "$ac_cv_header_windows_h" = yes ; then
2421 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2422 NOTIFY_OBJ=w32notify.o
2423 NOTIFY_SUMMARY="yes (w32)"
2427 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2428 dnl has been added in glib 2.24. It has been tested under
2429 dnl GNU/Linux only. We take precedence over inotify, but this makes
2430 dnl only sense when glib has been compiled with inotify support. How
2432 case $with_file_notification,$NOTIFY_OBJ in
2434 PKG_CHECK_MODULES(GFILENOTIFY, gio-2.0 >= 2.24, HAVE_GFILENOTIFY=yes, HAVE_GFILENOTIFY=no)
2435 if test "$HAVE_GFILENOTIFY" = "yes"; then
2436 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2437 NOTIFY_OBJ=gfilenotify.o
2438 NOTIFY_SUMMARY="yes -lgio (gfile)"
2442 dnl inotify is only available on GNU/Linux.
2443 case $with_file_notification,$NOTIFY_OBJ in
2445 AC_CHECK_HEADER(sys/inotify.h)
2446 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2447 AC_CHECK_FUNC(inotify_init1)
2448 if test "$ac_cv_func_inotify_init1" = yes; then
2449 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2450 NOTIFY_OBJ=inotify.o
2451 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2456 case $with_file_notification,$NOTIFY_OBJ in
2457 yes,* | no,* | *,?*) ;;
2458 *) AC_MSG_ERROR([File notification `$with_file_notification' requested but requirements not found.]) ;;
2461 if test -n "$NOTIFY_OBJ"; then
2462 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2464 AC_SUBST(NOTIFY_OBJ)
2465 AC_SUBST(GFILENOTIFY_CFLAGS)
2466 AC_SUBST(GFILENOTIFY_LIBS)
2468 dnl Do not put whitespace before the #include statements below.
2469 dnl Older compilers (eg sunos4 cc) choke on it.
2472 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2473 if test "$with_xaw3d" != no; then
2474 AC_CACHE_VAL(emacs_cv_xaw3d,
2475 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2476 #include <X11/Intrinsic.h>
2477 #include <X11/Xaw3d/Simple.h>]],
2479 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2480 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2481 emacs_cv_xaw3d=no)])
2485 if test $emacs_cv_xaw3d = yes; then
2486 AC_MSG_CHECKING(for xaw3d)
2487 AC_MSG_RESULT([yes; using Lucid toolkit])
2491 AC_DEFINE(HAVE_XAW3D, 1,
2492 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2494 AC_MSG_CHECKING(for xaw3d)
2496 AC_MSG_CHECKING(for libXaw)
2497 AC_CACHE_VAL(emacs_cv_xaw,
2498 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2499 #include <X11/Intrinsic.h>
2500 #include <X11/Xaw/Simple.h>]],
2504 if test $emacs_cv_xaw = yes; then
2505 AC_MSG_RESULT([yes; using Lucid toolkit])
2508 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2509 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2511 AC_MSG_ERROR([No X toolkit could be found.
2512 If you are sure you want Emacs compiled without an X toolkit, pass
2514 to configure. Otherwise, install the development libraries for the toolkit
2515 that you want to use (e.g. Gtk+) and re-run configure.])
2520 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2523 if test "${USE_X_TOOLKIT}" != "none"; then
2524 AC_MSG_CHECKING(X11 toolkit version)
2525 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2526 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2527 [[#if XtSpecificationRelease < 6
2530 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2531 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2532 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2533 AC_MSG_RESULT(6 or newer)
2534 AC_DEFINE(HAVE_X11XTR6, 1,
2535 [Define to 1 if you have the X11R6 or newer version of Xt.])
2536 LIBXTR6="-lSM -lICE"
2538 ## Use libw.a along with X11R6 Xt.
2539 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2542 AC_MSG_RESULT(before 6)
2545 dnl If using toolkit, check whether libXmu.a exists.
2546 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2548 if test x$HAVE_X11XTR6 = xyes; then
2549 LIBS="-lXt -lSM -lICE $LIBS"
2553 AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
2554 test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
2555 dnl ac_cv_lib_Xmu_XmuConvertStandardSelection is also referenced below.
2559 dnl FIXME the logic here seems weird, but this is what cpp was doing.
2560 dnl Why not just test for libxmu in the normal way?
2563 ## These systems don't supply Xmu.
2565 test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
2573 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
2574 if test "${HAVE_X11}" = "yes"; then
2575 if test "${USE_X_TOOLKIT}" != "none"; then
2576 AC_CHECK_LIB(Xext, XShapeQueryExtension)
2581 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2582 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2583 if test -d /usr/include/openmotif; then
2584 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2585 emacs_cv_openmotif=yes
2586 case "$canonical" in
2587 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2588 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2591 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2594 emacs_cv_openmotif=no
2596 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2597 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2598 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2601 Motif version prior to 2.1.
2603 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2604 if test $emacs_cv_motif_version_2_1 = yes; then
2605 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2606 if test x$emacs_cv_openmotif = xyes; then
2607 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2610 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2611 # We put this in CFLAGS temporarily to precede other -I options
2612 # that might be in CFLAGS temporarily.
2613 # We put this in CPPFLAGS where it precedes the other -I options.
2614 OLD_CPPFLAGS=$CPPFLAGS
2616 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2617 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2618 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2620 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2621 if test $emacs_cv_lesstif = yes; then
2622 # Make sure this -I option remains in CPPFLAGS after it is set
2623 # back to REAL_CPPFLAGS.
2624 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2625 # have those other -I options anyway. Ultimately, having this
2626 # directory ultimately in CPPFLAGS will be enough.
2627 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2628 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2631 CPPFLAGS=$OLD_CPPFLAGS
2634 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2635 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2638 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2639 dnl using Motif or Xaw3d is available, and unless
2640 dnl --with-toolkit-scroll-bars=no was specified.
2642 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2643 [Define to 1 if we should use toolkit scroll bars.])dnl
2644 USE_TOOLKIT_SCROLL_BARS=no
2645 if test "${with_toolkit_scroll_bars}" != "no"; then
2646 if test "${USE_X_TOOLKIT}" != "none"; then
2647 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2648 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2650 USE_TOOLKIT_SCROLL_BARS=yes
2651 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2652 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2653 USE_TOOLKIT_SCROLL_BARS=yes
2655 elif test "${HAVE_GTK}" = "yes"; then
2656 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2657 USE_TOOLKIT_SCROLL_BARS=yes
2658 elif test "${HAVE_NS}" = "yes"; then
2659 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2660 USE_TOOLKIT_SCROLL_BARS=yes
2661 elif test "${HAVE_W32}" = "yes"; then
2662 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2663 USE_TOOLKIT_SCROLL_BARS=yes
2667 dnl See if XIM is available.
2668 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2669 #include <X11/Xlib.h>
2670 #include <X11/Xresource.h>]],
2671 [[XIMProc callback;]])],
2673 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2676 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2678 if test "${with_xim}" != "no"; then
2679 AC_DEFINE(USE_XIM, 1,
2680 [Define to 1 if we should use XIM, if it is available.])
2684 if test "${HAVE_XIM}" != "no"; then
2686 if test "$GCC" = yes; then
2687 CFLAGS="$CFLAGS --pedantic-errors"
2689 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2690 #include <X11/Xlib.h>
2691 #include <X11/Xresource.h>]],
2697 XPointer *client_data;
2699 /* If we're not using GCC, it's probably not XFree86, and this is
2700 probably right, but we can't use something like --pedantic-errors. */
2701 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2702 char*, XIMProc, XPointer*);
2704 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2706 [emacs_cv_arg6_star=yes])
2707 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2708 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2709 either XPointer or XPointer*.])dnl
2710 if test "$emacs_cv_arg6_star" = yes; then
2711 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2713 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2718 ### Start of font-backend (under any platform) section.
2719 # (nothing here yet -- this is a placeholder)
2720 ### End of font-backend (under any platform) section.
2722 ### Start of font-backend (under X11) section.
2723 if test "${HAVE_X11}" = "yes"; then
2724 PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
2726 ## Use -lXft if available, unless `--with-xft=no'.
2728 if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2731 if test "x${with_xft}" != "xno"; then
2733 PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
2734 ## Because xftfont.c uses XRenderQueryExtension, we also
2735 ## need to link to -lXrender.
2737 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2738 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2739 OLD_CPPFLAGS="$CPPFLAGS"
2740 OLD_CFLAGS="$CFLAGS"
2742 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2743 CFLAGS="$CFLAGS $XFT_CFLAGS"
2744 XFT_LIBS="-lXrender $XFT_LIBS"
2745 LIBS="$XFT_LIBS $LIBS"
2746 AC_CHECK_HEADER(X11/Xft/Xft.h,
2747 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
2748 [[#include <X11/X.h>]])
2750 if test "${HAVE_XFT}" = "yes"; then
2751 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2753 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2755 CPPFLAGS="$OLD_CPPFLAGS"
2756 CFLAGS="$OLD_CFLAGS"
2758 fi # "${HAVE_XFT}" = "yes"
2759 fi # "$HAVE_XFT" != no
2760 fi # "x${with_xft}" != "xno"
2762 ## We used to allow building with FreeType and without Xft.
2763 ## However, the ftx font backend driver is not in good shape.
2764 if test "$HAVE_XFT" != "yes"; then
2765 dnl For the "Does Emacs use" message at the end.
2769 dnl Strict linkers fail with
2770 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2771 dnl if -lfreetype is not specified.
2772 dnl The following is needed to set FREETYPE_LIBS.
2773 PKG_CHECK_MODULES(FREETYPE, freetype2, HAVE_FREETYPE=yes,
2776 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2780 if test "${HAVE_FREETYPE}" = "yes"; then
2781 AC_DEFINE(HAVE_FREETYPE, 1,
2782 [Define to 1 if using the freetype and fontconfig libraries.])
2783 if test "${with_libotf}" != "no"; then
2784 PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
2786 if test "$HAVE_LIBOTF" = "yes"; then
2787 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2788 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2789 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2790 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2791 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2792 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2793 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2797 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2798 dnl Does the new font backend require it, or can it work without it?
2802 if test "${HAVE_LIBOTF}" = yes; then
2803 if test "${with_m17n_flt}" != "no"; then
2804 PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
2805 if test "$HAVE_M17N_FLT" = "yes"; then
2806 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2817 ### End of font-backend (under X11) section.
2819 AC_SUBST(FREETYPE_CFLAGS)
2820 AC_SUBST(FREETYPE_LIBS)
2821 AC_SUBST(FONTCONFIG_CFLAGS)
2822 AC_SUBST(FONTCONFIG_LIBS)
2823 AC_SUBST(LIBOTF_CFLAGS)
2824 AC_SUBST(LIBOTF_LIBS)
2825 AC_SUBST(M17N_FLT_CFLAGS)
2826 AC_SUBST(M17N_FLT_LIBS)
2828 ### Use -lXpm if available, unless `--with-xpm=no'.
2829 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
2832 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
2833 if test "${with_xpm}" != "no"; then
2834 SAVE_CPPFLAGS="$CPPFLAGS"
2835 SAVE_LDFLAGS="$LDFLAGS"
2836 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
2837 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
2838 AC_CHECK_HEADER(X11/xpm.h,
2839 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
2840 if test "${HAVE_XPM}" = "yes"; then
2841 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2842 AC_EGREP_CPP(no_return_alloc_pixels,
2843 [#include "X11/xpm.h"
2844 #ifndef XpmReturnAllocPixels
2845 no_return_alloc_pixels
2847 ], HAVE_XPM=no, HAVE_XPM=yes)
2849 if test "${HAVE_XPM}" = "yes"; then
2850 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
2854 CPPFLAGS="$SAVE_CPPFLAGS"
2855 LDFLAGS="$SAVE_LDFLAGS"
2860 if test "${HAVE_XPM}" = "yes"; then
2861 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2866 if test "${HAVE_X11}" = "yes"; then
2867 if test "${with_xpm}" != "no"; then
2868 AC_CHECK_HEADER(X11/xpm.h,
2869 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2870 if test "${HAVE_XPM}" = "yes"; then
2871 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2872 AC_EGREP_CPP(no_return_alloc_pixels,
2873 [#include "X11/xpm.h"
2874 #ifndef XpmReturnAllocPixels
2875 no_return_alloc_pixels
2877 ], HAVE_XPM=no, HAVE_XPM=yes)
2879 if test "${HAVE_XPM}" = "yes"; then
2887 if test "${HAVE_XPM}" = "yes"; then
2888 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2893 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
2894 ### slightly different requirements wrt image libraries (it doesn't
2895 ### use -lXpm because it loads the xpm shared library dynamically at
2897 if test "${opsys}" = "mingw32"; then
2898 if test "${with_xpm}" != "no"; then
2899 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
2903 if test "${HAVE_XPM}" = "yes"; then
2904 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2910 ### Use -ljpeg if available, unless `--with-jpeg=no'.
2911 ### mingw32 doesn't use -ljpeg, since it loads the library dynamically.
2914 if test "${opsys}" = "mingw32"; then
2915 if test "${with_jpeg}" != "no"; then
2916 dnl Checking for jpeglib.h can lose because of a redefinition of
2918 AC_CHECK_HEADER(jerror.h, HAVE_JPEG=yes, HAVE_JPEG=no)
2920 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2921 if test "${HAVE_JPEG}" = "yes"; then
2922 AC_DEFINE(HAVE_JPEG)
2923 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2924 [#include <jpeglib.h>
2925 version=JPEG_LIB_VERSION
2927 [AC_DEFINE(HAVE_JPEG)],
2928 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2931 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2932 if test "${with_jpeg}" != "no"; then
2933 dnl Checking for jpeglib.h can lose because of a redefinition of
2935 AC_CHECK_HEADER(jerror.h,
2936 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
2939 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2940 if test "${HAVE_JPEG}" = "yes"; then
2941 AC_DEFINE(HAVE_JPEG)
2942 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2943 [#include <jpeglib.h>
2944 version=JPEG_LIB_VERSION
2946 [AC_DEFINE(HAVE_JPEG)],
2947 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2950 if test "${HAVE_JPEG}" = "yes"; then
2956 ### Use -lpng if available, unless `--with-png=no'.
2957 ### mingw32 doesn't use -lpng, since it loads the library dynamically.
2960 if test "${opsys}" = "mingw32"; then
2961 if test "${with_png}" != "no"; then
2962 AC_CHECK_HEADER(png.h, HAVE_PNG=yes, HAVE_PNG=no)
2964 if test "${HAVE_PNG}" = "yes"; then
2965 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2967 AC_CHECK_DECL(png_longjmp,
2969 [AC_DEFINE(PNG_DEPSTRUCT, [],
2970 [Define to empty to suppress deprecation warnings when building
2971 with --enable-gcc-warnings and with libpng versions before 1.5,
2972 which lack png_longjmp.])],
2973 [[#ifdef HAVE_LIBPNG_PNG_H
2974 # include <libpng/png.h>
2980 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2981 if test "${with_png}" != "no"; then
2982 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
2983 # in /usr/include/libpng.
2984 AC_CHECK_HEADERS(png.h libpng/png.h, break)
2985 if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
2986 AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
2990 if test "${HAVE_PNG}" = "yes"; then
2991 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2992 LIBPNG="-lpng -lz -lm"
2994 AC_CHECK_DECL(png_longjmp,
2996 [AC_DEFINE(PNG_DEPSTRUCT, [],
2997 [Define to empty to suppress deprecation warnings when building
2998 with --enable-gcc-warnings and with libpng versions before 1.5,
2999 which lack png_longjmp.])],
3000 [[#ifdef HAVE_LIBPNG_PNG_H
3001 # include <libpng/png.h>
3012 if test "${with_zlib}" != "no"; then
3014 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
3016 case $ac_cv_search_inflateEnd in
3017 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3020 if test "${HAVE_ZLIB}" = "yes"; then
3021 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3022 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3023 if test "${opsys}" = "mingw32"; then
3030 ### Use -ltiff if available, unless `--with-tiff=no'.
3031 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3034 if test "${opsys}" = "mingw32"; then
3035 if test "${with_tiff}" != "no"; then
3036 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3038 if test "${HAVE_TIFF}" = "yes"; then
3039 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3041 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3042 if test "${with_tiff}" != "no"; then
3043 AC_CHECK_HEADER(tiffio.h,
3045 # At least one tiff package requires the jpeg library.
3046 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3047 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3050 if test "${HAVE_TIFF}" = "yes"; then
3051 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3052 dnl FIXME -lz -lm, as per libpng?
3058 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
3059 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3062 if test "${opsys}" = "mingw32"; then
3063 if test "${with_gif}" != "no"; then
3064 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3066 if test "${HAVE_GIF}" = "yes"; then
3067 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3069 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3070 || test "${HAVE_W32}" = "yes"; then
3071 AC_CHECK_HEADER(gif_lib.h,
3072 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3073 # Earlier versions can crash Emacs.
3074 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])
3076 if test "$HAVE_GIF" = yes; then
3078 elif test "$HAVE_GIF" = maybe; then
3079 # If gif_lib.h but no libgif, try libungif.
3080 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3081 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3084 if test "${HAVE_GIF}" = "yes"; then
3085 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3090 dnl Check for required libraries.
3091 if test "${HAVE_X11}" = "yes"; then
3094 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3095 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3096 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3097 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3098 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3099 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3100 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3101 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3102 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3103 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3105 if test "X${MISSING}" != X; then
3106 AC_MSG_ERROR([The following required libraries were not found:
3108 Maybe some development libraries/packages are missing?
3109 If you don't want to link with them give
3111 as options to configure])
3115 ### Use -lgpm if available, unless `--with-gpm=no'.
3118 if test "${with_gpm}" != "no"; then
3119 AC_CHECK_HEADER(gpm.h,
3120 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3122 if test "${HAVE_GPM}" = "yes"; then
3123 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3129 dnl Check for malloc/malloc.h on darwin
3130 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3133 ### Use NeXTstep API to implement GUI.
3134 if test "${HAVE_NS}" = "yes"; then
3135 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
3136 if test "${NS_IMPL_COCOA}" = "yes"; then
3137 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
3139 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3140 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3141 # See also .m.o rule in Makefile.in */
3142 # FIXME: are all these flags really needed? Document here why. */
3143 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3144 ## Extra CFLAGS applied to src/*.m files.
3145 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3147 # We also have mouse menus.
3152 if test "${HAVE_W32}" = "yes"; then
3156 ### Use session management (-lSM -lICE) if available
3159 if test "${HAVE_X11}" = "yes"; then
3160 AC_CHECK_HEADER(X11/SM/SMlib.h,
3161 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3163 if test "${HAVE_X_SM}" = "yes"; then
3164 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3168 *) LIBS="$LIBXSM $LIBS" ;;
3174 ### Use XRandr (-lXrandr) if available
3176 if test "${HAVE_X11}" = "yes"; then
3177 XRANDR_REQUIRED=1.2.2
3178 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3179 PKG_CHECK_MODULES(XRANDR, $XRANDR_MODULES, HAVE_XRANDR=yes, HAVE_XRANDR=no)
3180 if test $HAVE_XRANDR = no; then
3181 # Test old way in case pkg-config doesn't have it (older machines).
3182 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3183 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)])
3184 if test $HAVE_XRANDR = yes; then
3185 XRANDR_LIBS=-lXrandr
3186 AC_SUBST(XRANDR_LIBS)
3189 if test $HAVE_XRANDR = yes; then
3190 SAVE_CFLAGS="$CFLAGS"
3192 CFLAGS="$XRANDR_CFLAGS $CFLAGS"
3193 LIBS="$XRANDR_LIBS $LIBS"
3194 AC_CHECK_FUNCS(XRRGetOutputPrimary XRRGetScreenResourcesCurrent)
3195 CFLAGS="$SAVE_CFLAGS"
3198 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3202 ### Use Xinerama (-lXinerama) if available
3204 if test "${HAVE_X11}" = "yes"; then
3205 XINERAMA_REQUIRED=1.0.2
3206 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3207 PKG_CHECK_MODULES(XINERAMA, $XINERAMA_MODULES, HAVE_XINERAMA=yes,
3209 if test $HAVE_XINERAMA = no; then
3210 # Test old way in case pkg-config doesn't have it (older machines).
3211 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3212 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3213 if test $HAVE_XINERAMA = yes; then
3214 XINERAMA_LIBS=-lXinerama
3215 AC_SUBST(XINERAMA_LIBS)
3218 if test $HAVE_XINERAMA = yes; then
3219 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3224 ### Use libxml (-lxml2) if available
3225 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3227 if test "${with_xml2}" != "no"; then
3228 ### I'm not sure what the version number should be, so I just guessed.
3229 PKG_CHECK_MODULES(LIBXML2, libxml-2.0 > 2.6.17, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
3230 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3231 if test "${HAVE_LIBXML2}" != "yes" -a "$opsys" = "darwin"; then
3232 SAVE_CPPFLAGS="$CPPFLAGS"
3233 CPPFLAGS="$CPPFLAGS -I/usr/include/libxml2"
3234 AC_CHECK_HEADER(libxml/HTMLparser.h,
3235 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3236 [#include <libxml/HTMLparser.h>])])
3237 CPPFLAGS="$SAVE_CPPFLAGS"
3238 if test "${HAVE_LIBXML2}" = "yes"; then
3239 LIBXML2_LIBS="-lxml2"
3240 LIBXML2_CFLAGS="-I/usr/include/libxml2"
3243 if test "${HAVE_LIBXML2}" = "yes"; then
3244 if test "${opsys}" != "mingw32"; then
3245 LIBS="$LIBXML2_LIBS $LIBS"
3246 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
3250 if test "${HAVE_LIBXML2}" = "yes"; then
3251 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3258 AC_SUBST(LIBXML2_LIBS)
3259 AC_SUBST(LIBXML2_CFLAGS)
3261 # If netdb.h doesn't declare h_errno, we must declare it by hand.
3262 # On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
3263 if test "${opsys}" = "mingw32"; then
3264 emacs_cv_netdb_declares_h_errno=yes
3266 AC_CACHE_CHECK(whether netdb declares h_errno,
3267 emacs_cv_netdb_declares_h_errno,
3268 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
3269 [[return h_errno;]])],
3270 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
3271 if test $emacs_cv_netdb_declares_h_errno = yes; then
3272 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
3275 # sqrt and other floating-point functions such as fmod and frexp
3276 # are found in -lm on most systems, but mingw32 doesn't use -lm.
3277 if test "${opsys}" != "mingw32"; then
3278 AC_CHECK_LIB(m, sqrt)
3281 # Check for mail-locking functions in a "mail" library. Probably this should
3282 # have the same check as for liblockfile below.
3283 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
3284 if test $have_mail = yes; then
3286 LIBS="$LIBS_MAIL $LIBS"
3287 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
3291 dnl Debian, at least:
3292 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
3293 if test $have_lockfile = yes; then
3294 LIBS_MAIL=-llockfile
3295 LIBS="$LIBS_MAIL $LIBS"
3296 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
3298 # If we have the shared liblockfile, assume we must use it for mail
3299 # locking (e.g. Debian). If we couldn't link against liblockfile
3300 # (no liblockfile.a installed), ensure that we don't need to.
3301 dnl This works for files generally, not just executables.
3302 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3303 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
3304 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
3305 if test $ac_cv_prog_liblockfile = yes; then
3306 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3307 This probably means that movemail could lose mail.
3308 There may be a `development' package to install containing liblockfile.])
3311 AC_CHECK_HEADERS_ONCE(maillock.h)
3314 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3315 ## interlock access to the mail spool. The alternative is a lock file named
3316 ## /usr/spool/mail/$USER.lock.
3319 aix4-2) mail_lock="lockf" ;;
3321 gnu|freebsd|dragonfly|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
3323 ## On GNU/Linux systems, both methods are used by various mail programs.
3324 ## I assume most people are using newer mailers that have heard of flock.
3325 ## Change this if you need to.
3326 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
3327 ## configure gets the right answers, and that means *NOT* using flock.
3328 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3329 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
3330 ## Debian maintainer hasn't provided a clean fix for Emacs.
3331 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
3332 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3333 ## correct logic. -- fx
3334 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3335 ## liblockfile is a Free Software replacement for libmail, used on
3336 ## Debian systems and elsewhere. -rfr.
3339 if test $have_mail = yes || test $have_lockfile = yes; then
3340 test $ac_cv_header_maillock_h = yes && mail_lock=no
3345 mail_lock="none-needed" ;;
3349 case "$mail_lock" in
3350 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3352 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3356 *) BLESSMAIL_TARGET="need-blessmail" ;;
3358 AC_SUBST(BLESSMAIL_TARGET)
3361 AC_CHECK_FUNCS(accept4 gethostname \
3362 getrusage get_current_dir_name \
3364 select getpagesize setlocale \
3365 getrlimit setrlimit shutdown getaddrinfo \
3366 strsignal setitimer \
3367 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
3368 gai_strerror getline getdelim sync \
3369 difftime posix_memalign \
3370 getpwent endpwent getgrent endgrent \
3372 cfmakeraw cfsetspeed copysign __executable_start log2)
3374 ## Eric Backus <ericb@lsid.hp.com> says, HP-UX 9.x on HP 700 machines
3375 ## has a broken `rint' in some library versions including math library
3376 ## version number A.09.05.
3377 ## You can fix the math library by installing patch number PHSS_4630.
3378 ## But we can fix it more reliably for Emacs by just not using rint.
3379 ## We also skip HAVE_RANDOM - see comments in src/conf_post.h.
3382 *) AC_CHECK_FUNCS(random rint) ;;
3385 dnl Cannot use AC_CHECK_FUNCS
3386 AC_CACHE_CHECK([for __builtin_unwind_init],
3387 emacs_cv_func___builtin_unwind_init,
3388 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3389 emacs_cv_func___builtin_unwind_init=yes,
3390 emacs_cv_func___builtin_unwind_init=no)])
3391 if test $emacs_cv_func___builtin_unwind_init = yes; then
3392 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3393 [Define to 1 if you have the `__builtin_unwind_init' function.])
3396 AC_CHECK_HEADERS_ONCE(sys/un.h)
3401 AC_CHECK_FUNCS(grantpt)
3403 # PTY-related GNU extensions.
3404 AC_CHECK_FUNCS(getpt posix_openpt)
3406 # Check this now, so that we will NOT find the above functions in ncurses.
3407 # That is because we have not set up to link ncurses in lib-src.
3408 # It's better to believe a function is not available
3409 # than to expect to find it in ncurses.
3410 # Also we need tputs and friends to be able to build at all.
3411 AC_MSG_CHECKING([for library containing tputs])
3412 # Run a test program that contains a call to tputs, a call that is
3413 # never executed. This tests whether a pre-'main' dynamic linker
3414 # works with the library. It's too much trouble to actually call
3415 # tputs in the test program, due to portability hassles. When
3416 # cross-compiling, assume the test program will run if it links.
3417 AC_DEFUN([tputs_link_source], [
3419 [[extern void tputs (const char *, int, int (*)(int));
3420 int main (int argc, char **argv)
3423 tputs (argv[0], 0, 0);
3427 if test "${opsys}" = "mingw32"; then
3430 # Maybe curses should be tried earlier?
3431 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3432 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3434 if test -z "$tputs_library"; then
3438 LIBS_TERMCAP=-l$tputs_library
3440 LIBS="$LIBS_TERMCAP $LIBS"
3442 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3443 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3445 if test "X$msg" != Xno; then
3450 AC_MSG_RESULT([$msg])
3451 if test "X$msg" = Xno; then
3452 AC_MSG_ERROR([The required function `tputs' was not found in any library.
3453 The following libraries were tried (in order):
3454 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3455 Please try installing whichever of these libraries is most appropriate
3456 for your system, together with its header files.
3457 For example, a libncurses-dev(el) or similar package.])
3460 ## Use termcap instead of terminfo?
3461 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3463 ## FIXME? In the cases below where we unconditionally set
3464 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3465 ## if that was found above to have tputs.
3466 ## Should we use the gnu* logic everywhere?
3468 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3469 ## The ncurses library has been moved out of the System framework in
3470 ## Mac OS X 10.2. So if configure detects it, set the command-line
3471 ## option to use it.
3472 darwin) LIBS_TERMCAP="-lncurses" ;;
3474 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3477 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3478 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3479 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3480 [[#if __FreeBSD_version < 400000
3483 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3485 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3487 if test $emacs_cv_freebsd_terminfo = yes; then
3488 LIBS_TERMCAP="-lncurses"
3491 LIBS_TERMCAP="-ltermcap"
3501 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3503 LIBS_TERMCAP="-ltermcap"
3507 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
3509 ## hpux: Make sure we get select from libc rather than from libcurses
3510 ## because libcurses on HPUX 10.10 has a broken version of select.
3511 ## We used to use -lc -lcurses, but this may be cleaner.
3512 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3513 # set that way, now it uses the default). Isn't this a contradiction?
3514 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3518 TERMCAP_OBJ=tparam.o
3519 if test $TERMINFO = yes; then
3520 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3521 TERMCAP_OBJ=terminfo.o
3523 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
3524 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
3526 AC_SUBST(LIBS_TERMCAP)
3527 AC_SUBST(TERMCAP_OBJ)
3530 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3531 # On Darwin, res_init appears not to be useful: see bug#562 and
3532 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3535 if test $opsys != darwin; then
3537 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3538 #include <arpa/nameser.h>
3539 #include <resolv.h>]],
3540 [[return res_init();]])],
3541 have_res_init=yes, have_res_init=no)
3542 if test "$have_res_init" = no; then
3544 LIBS="$LIBS -lresolv"
3545 AC_MSG_CHECKING(for res_init with -lresolv)
3546 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3547 #include <arpa/nameser.h>
3548 #include <resolv.h>]],
3549 [[return res_init();]])],
3550 have_res_init=yes, have_res_init=no)
3551 AC_MSG_RESULT($have_res_init)
3552 if test "$have_res_init" = yes ; then
3558 if test "$have_res_init" = yes; then
3559 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3563 # Do we need the Hesiod library to provide the support routines?
3564 dnl FIXME? Should we be skipping this on Darwin too?
3566 if test "$with_hesiod" != no ; then
3567 # Don't set $LIBS here -- see comments above. FIXME which comments?
3568 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3569 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3570 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3571 if test "$resolv" = yes ; then
3576 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3577 hesiod=yes, :, $RESOLVLIB)])
3579 if test x"$hesiod" = xyes; then
3585 # Do we need libresolv (due to res_init or Hesiod)?
3586 if test "$resolv" = yes && test $opsys != darwin; then
3593 # These tell us which Kerberos-related libraries to use.
3600 if test "${with_kerberos}" != no; then
3601 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3602 if test $have_com_err = yes; then
3603 COM_ERRLIB=-lcom_err
3604 LIBS="$COM_ERRLIB $LIBS"
3606 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3607 if test $have_crypto = yes; then
3609 LIBS="$CRYPTOLIB $LIBS"
3611 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3612 if test $have_k5crypto = yes; then
3613 CRYPTOLIB=-lk5crypto
3614 LIBS="$CRYPTOLIB $LIBS"
3616 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3617 if test $have_krb5=yes; then
3619 LIBS="$KRB5LIB $LIBS"
3621 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3622 if test "${with_kerberos5}" = no; then
3623 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3624 if test $have_des425 = yes; then
3626 LIBS="$DESLIB $LIBS"
3628 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3629 if test $have_des = yes; then
3631 LIBS="$DESLIB $LIBS"
3634 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3635 if test $have_krb4 = yes; then
3637 LIBS="$KRB4LIB $LIBS"
3639 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3640 if test $have_krb = yes; then
3642 LIBS="$KRB4LIB $LIBS"
3647 if test "${with_kerberos5}" != no; then
3648 AC_CHECK_HEADERS(krb5.h,
3649 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3650 [#include <krb5.h>])])
3652 AC_CHECK_HEADERS(krb.h,,
3653 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3654 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3656 AC_CHECK_HEADERS(com_err.h)
3659 AC_SUBST(COM_ERRLIB)
3665 AC_CHECK_FUNCS_ONCE(tzset)
3666 AC_MSG_CHECKING(whether localtime caches TZ)
3667 AC_CACHE_VAL(emacs_cv_localtime_cache,
3668 [if test x$ac_cv_func_tzset = xyes; then
3669 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3670 char TZ_GMT0[] = "TZ=GMT0";
3671 char TZ_PST8[] = "TZ=PST8";
3674 time_t now = time ((time_t *) 0);
3675 int hour_GMT0, hour_unset;
3676 if (putenv (TZ_GMT0) != 0)
3678 hour_GMT0 = localtime (&now)->tm_hour;
3680 hour_unset = localtime (&now)->tm_hour;
3681 if (putenv (TZ_PST8) != 0)
3683 if (localtime (&now)->tm_hour == hour_GMT0)
3686 if (localtime (&now)->tm_hour != hour_unset)
3689 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3690 [# If we have tzset, assume the worst when cross-compiling.
3691 emacs_cv_localtime_cache=yes])
3693 # If we lack tzset, report that localtime does not cache TZ,
3694 # since we can't invalidate the cache if we don't have tzset.
3695 emacs_cv_localtime_cache=no
3697 AC_MSG_RESULT($emacs_cv_localtime_cache)
3698 if test $emacs_cv_localtime_cache = yes; then
3699 AC_DEFINE(LOCALTIME_CACHE, 1,
3700 [Define to 1 if localtime caches TZ.])
3704 AC_CHECK_FUNC(socket, , ok_so_far=no)
3705 if test $ok_so_far = yes; then
3706 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3708 if test $ok_so_far = yes; then
3709 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3711 if test $ok_so_far = yes; then
3712 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3713 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3714 [Define to 1 if you have inet sockets.])
3717 dnl Check for a Solaris 2.4 vfork bug that Autoconf misses (through 2.69).
3718 dnl This can be removed once we assume Autoconf 2.70.
3720 *-solaris2.4 | *-solaris2.4.*)
3721 dnl Disable the Autoconf-generated vfork test.
3722 : ${ac_cv_func_vfork_works=no};;
3727 AC_CHECK_FUNCS(snprintf)
3729 dnl Check this late. It depends on what other libraries (lrsvg, Gtk+ etc)
3732 AC_MSG_CHECKING([whether GLib is linked in])
3733 AC_LINK_IFELSE([AC_LANG_PROGRAM(
3736 [[g_print ("Hello world");]])],
3739 AC_MSG_RESULT([$links_glib])
3740 if test "${links_glib}" = "yes"; then
3741 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
3742 if test "$HAVE_NS" = no;then
3748 dnl Adapted from Haible's version.
3749 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3750 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3751 [[char* cs = nl_langinfo(CODESET);]])],
3752 emacs_cv_langinfo_codeset=yes,
3753 emacs_cv_langinfo_codeset=no)
3755 if test $emacs_cv_langinfo_codeset = yes; then
3756 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3757 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3762 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3763 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3764 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3765 if test "$emacs_cv_c_restrict_arr" = yes; then
3766 AC_DEFINE(__restrict_arr, __restrict,
3767 [Define to compiler's equivalent of C99 restrict keyword in array
3768 declarations. Define as empty for no equivalent.])
3771 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3772 dnl how the tty code is related to POSIX and/or other versions of termios.
3773 dnl The following looks like a useful start.
3775 dnl AC_SYS_POSIX_TERMIOS
3776 dnl if test $ac_cv_sys_posix_termios = yes; then
3777 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3778 dnl and macros for terminal control.])
3779 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3782 dnl Turned on June 1996 supposing nobody will mind it.
3783 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
3784 if test "${opsys}" != "mingw32"; then
3785 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3786 in the full name stands for the login id.])
3789 dnl Every platform that uses configure supports this.
3790 dnl There is a create-lockfiles option you can
3791 dnl customize if you do not want the lock files to be written.
3792 dnl So it is not clear that this #define still needs to exist.
3793 AC_DEFINE(CLASH_DETECTION, 1, [Define if you want lock files to be written,
3794 so that Emacs can tell instantly when you try to modify a file that
3795 someone else has modified in his/her Emacs.])
3797 dnl Everybody supports this, except MS.
3798 dnl Seems like the kind of thing we should be testing for, though.
3799 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3800 if test "${opsys}" != "mingw32"; then
3801 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3804 dnl Everybody supports this, except MS-DOS.
3805 dnl Seems like the kind of thing we should be testing for, though.
3806 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3807 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3808 4.2-compatible sockets.])
3810 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3812 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
3813 a null file, or a data sink.])
3814 if test "${opsys}" = "mingw32"; then
3815 AC_DEFINE(NULL_DEVICE, ["NUL:"])
3817 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
3820 AH_TEMPLATE(SEPCHAR, [Character that separates PATH elements.])
3821 if test "${opsys}" = "mingw32"; then
3822 AC_DEFINE(SEPCHAR, [';'])
3824 AC_DEFINE(SEPCHAR, [':'])
3827 dnl Everybody supports this, except MS-DOS.
3828 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3830 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3833 AC_DEFINE(DIRECTORY_SEP, ['/'],
3834 [Character that separates directories in a file name.])
3836 if test "${opsys}" = "mingw32"; then
3837 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
3838 [Returns true if character is a device separator.])
3840 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
3841 [Returns true if character is a directory separator.])
3843 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
3844 [Returns true if character is any form of separator.])
3846 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
3847 [Returns true if character is a device separator.])
3849 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
3850 [Returns true if character is a directory separator.])
3852 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
3853 [Returns true if character is any form of separator.])
3856 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
3860 dnl Unfortunately without libXmu we cannot support EditRes.
3861 if test x$ac_cv_lib_Xmu_XmuConvertStandardSelection != xyes; then
3862 AC_DEFINE(NO_EDITRES, 1)
3867 dnl Assar Westerlund <assar@sics.se> says this is necessary for
3868 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
3869 AC_DEFINE(NO_EDITRES, 1)
3875 irix6-5 | sol2* | unixware )
3876 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
3877 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
3878 dnl need the constant to dimension an array. So wire in the appropriate
3880 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
3884 emacs_broken_SIGIO=no
3887 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
3888 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
3889 hpux* | irix6-5 | openbsd | sol2* | unixware | gnu-kfreebsd )
3890 emacs_broken_SIGIO=yes
3894 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
3895 dnl the way this system works, libc functions that return malloced
3896 dnl memory use the libc malloc implementation. Calling xfree or
3897 dnl xrealloc on the results of such functions results in a crash.
3899 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
3900 dnl but that does not currently work on this system.
3902 dnl It is possible to completely override the malloc implementation on
3903 dnl AIX, but that involves putting the malloc functions in a shared
3904 dnl library and setting the MALLOCTYPE environment variable to point to
3905 dnl that shared library.
3907 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
3908 dnl to avoid a crash just use the Emacs implementation for that function.
3910 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
3911 dnl of this file, so that we do not check for get_current_dir_name
3912 dnl on AIX. But that might be fragile if something else ends
3913 dnl up testing for get_current_dir_name as a dependency.
3914 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
3915 get_current_dir_name should not be used.])
3919 dnl Circumvent a bug in FreeBSD. In the following sequence of
3920 dnl writes/reads on a PTY, read(2) returns bogus data:
3922 dnl write(2) 1022 bytes
3923 dnl write(2) 954 bytes, get EAGAIN
3924 dnl read(2) 1024 bytes in process_read_output
3925 dnl read(2) 11 bytes in process_read_output
3927 dnl That is, read(2) returns more bytes than have ever been written
3928 dnl successfully. The 1033 bytes read are the 1022 bytes written
3929 dnl successfully after processing (for example with CRs added if the
3930 dnl terminal is set up that way which it is here). The same bytes will
3931 dnl be seen again in a later read(2), without the CRs.
3932 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
3933 work around an issue when reading from a PTY.])
3939 dnl FIXME Can't we test if this exists (eg /proc/$$)?
3940 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
3945 darwin | dragonfly | freebsd | netbsd | openbsd )
3946 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
3947 close a pty to make it a controlling terminal (it is already a
3948 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
3952 dnl FIXME Surely we can test for this rather than hard-code it.
3954 netbsd | openbsd) sound_device="/dev/audio" ;;
3955 *) sound_device="/dev/dsp" ;;
3959 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
3960 [Name of the default sound device.])
3963 dnl Emacs can read input using SIGIO and buffering characters itself,
3964 dnl or using CBREAK mode and making C-g cause SIGINT.
3965 dnl The choice is controlled by the variable interrupt_input.
3967 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
3969 dnl Emacs uses the presence of the USABLE_SIGIO macro
3970 dnl to indicate whether or not signal-driven I/O is possible. It uses
3971 dnl INTERRUPT_INPUT to decide whether to use it by default.
3973 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
3974 dnl CBREAK mode has two disadvantages
3975 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
3976 dnl I hear that in system V this problem does not exist.
3977 dnl 2) Control-G causes output to be discarded.
3978 dnl I do not know whether this can be fixed in system V.
3980 dnl Another method of doing input is planned but not implemented.
3981 dnl It would have Emacs fork off a separate process
3982 dnl to read the input and send it to the true Emacs process
3985 darwin | gnu-linux | gnu-kfreebsd )
3986 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
3991 dnl If the system's imake configuration file defines `NeedWidePrototypes'
3992 dnl as `NO', we must define NARROWPROTO manually. Such a define is
3993 dnl generated in the Makefile generated by `xmkmf'. If we don't define
3994 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
3995 dnl taking float or double parameters.
3997 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
3998 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
3999 file defines `NeedWidePrototypes' as `NO'.])
4004 dnl Used in process.c, this must be a loop, even if it only runs once.
4005 dnl (Except on SGI; see below. Take that, clarity and consistency!)
4006 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
4007 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
4008 dnl trying suffixes 0-16.
4009 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
4010 first PTY, if PTYs are supported.])
4011 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
4012 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
4013 end of a PTY, if non-standard.])
4014 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
4015 end of a PTY, if non-standard.])
4019 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4020 dnl You allocate a pty by opening /dev/ptc to get the master side.
4021 dnl To get the name of the slave side, you just ttyname() the master side.
4022 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4023 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4027 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4028 dnl multi-line AC_DEFINEs are hard. :(
4029 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)])
4030 AC_DEFINE(PTY_NAME_SPRINTF, [])
4031 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4034 dnl FIXME? Maybe use same as freebsd - see bug#12040.
4036 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4037 dnl Not used, because PTY_ITERATION is defined.
4038 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4039 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
4040 dnl But we don't have to block SIGCHLD because it is blocked in the
4041 dnl implementation of grantpt.
4042 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (0)])
4043 AC_DEFINE(PTY_NAME_SPRINTF, [])
4044 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4048 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4051 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd )
4053 if test "x$ac_cv_func_grantpt" = xyes; then
4054 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4055 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4056 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4057 dnl to prevent sigchld_handler from intercepting the child's death.
4058 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) { emacs_close (fd); return -1; } snprintf (pty_name, PTY_NAME_SIZE, "%s", ptyname); }])
4059 dnl if HAVE_POSIX_OPENPT
4060 if test "x$ac_cv_func_posix_openpt" = xyes; then
4061 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (0)])
4062 AC_DEFINE(PTY_NAME_SPRINTF, [])
4064 elif test "x$ac_cv_func_getpt" = xyes; then
4065 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4066 AC_DEFINE(PTY_NAME_SPRINTF, [])
4068 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4071 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4076 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4077 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4078 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4082 dnl It looks like this cannot be right, because it is not a loop.
4083 dnl However, process.c actually does this:
4089 dnl which presumably makes it OK, since irix == sgi (?).
4090 dnl FIXME it seems like this special treatment is unnecessary?
4091 dnl Why can't irix use a single-trip loop like eg cygwin?
4092 AC_DEFINE(PTY_ITERATION, [])
4093 dnl Not used, because PTY_ITERATION is defined.
4094 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
4095 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(SIGCHLD, &cstat, &ocstat); name = _getpty (&fd, O_RDWR | O_NDELAY, 0600, 0); sigaction(SIGCHLD, &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); }])
4096 dnl No need to get the pty name at all.
4097 AC_DEFINE(PTY_NAME_SPRINTF, [])
4098 dnl No need to use sprintf to get the tty name--we get that from _getpty.
4099 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4103 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
4104 dnl from intercepting that death. If any child but grantpt's should die
4105 dnl within, it should be caught after sigrelse(2).
4106 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptsname (int), *ptyname; int grantpt_result; sigset_t blocked; sigemptyset (&blocked); sigaddset (&blocked, SIGCHLD); 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, PTY_NAME_SIZE, "%s", ptyname); }])
4110 dnl Comments are as per sol2*.
4111 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptsname (int), *ptyname; int grantpt_result; sigset_t blocked; sigemptyset (&blocked); sigaddset (&blocked, SIGCHLD); 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, PTY_NAME_SIZE, "%s", ptyname); }])
4118 dnl This change means that we don't loop through allocate_pty too
4119 dnl many times in the (rare) event of a failure.
4120 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4121 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4122 dnl Push various streams modules onto a PTY channel. Used in process.c.
4123 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.])
4128 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4129 "typing" a signal character on the pty.])
4132 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4133 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
4134 aix4-2 | cygwin | gnu | irix6-5 | dragonfly | freebsd | netbsd | openbsd | darwin )
4135 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4138 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4139 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4140 gnu-linux | gnu-kfreebsd )
4142 AC_MSG_CHECKING([for signals via characters])
4143 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4144 #include <linux/version.h>
4145 #if LINUX_VERSION_CODE < 0x20400
4146 # error "Linux version too old"
4148 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4150 AC_MSG_RESULT([$emacs_signals_via_chars])
4151 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4156 dnl Used in lisp.h, emacs.c, vm-limit.c
4157 dnl NEWS.18 describes this as "a number which contains
4158 dnl the high bits to be inclusive or'ed with pointers that are unpacked."
4159 AH_TEMPLATE(DATA_SEG_BITS, [Extra bits to be or'd in with any pointers
4160 stored in a Lisp_Object.])
4161 dnl if Emacs uses fewer than 32 bits for the value field of a LISP_OBJECT.
4165 dnl This works with 32-bit executables; Emacs doesn't support 64-bit.
4166 AC_DEFINE(DATA_SEG_BITS, [0x20000000])
4169 dnl The data segment on this machine always starts at address 0x40000000.
4170 AC_DEFINE(DATA_SEG_BITS, [0x40000000])
4173 AC_DEFINE(DATA_SEG_BITS, [0x10000000])
4178 AH_TEMPLATE(TAB3, [Undocumented.])
4181 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4183 gnu | dragonfly | freebsd | netbsd | openbsd )
4184 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4185 AC_DEFINE(TAB3, OXTABS)
4188 gnu-linux | gnu-kfreebsd )
4189 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4193 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4194 [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)],
4195 [Mark a secondary stack, like the register stack on the ia64.]), [])
4199 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4200 run_time_remap; for HPUX.])
4205 dnl This won't be used automatically yet. We also need to know, at least,
4206 dnl that the stack is continuous.
4207 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4208 registers relevant for conservative garbage collection in the jmp_buf.])
4212 dnl Not all the architectures are tested, but there are Debian packages
4213 dnl for SCM and/or Guile on them, so the technique must work. See also
4214 dnl comments in alloc.c concerning setjmp and gcc.
4215 dnl Fixme: it's probably safe to just use the GCC conditional below.
4216 gnu-linux | gnu-kfreebsd )
4217 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4218 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4219 || defined __alpha__ || defined __mips__ || defined __s390__ \
4220 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4221 || defined __ia64__ || defined __sh__
4224 # error "setjmp not known to work on this arch"
4226 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4231 if test x$GCC = xyes; then
4232 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4233 AC_DEFINE(GC_SETJMP_WORKS, 1)
4236 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
4237 dragonfly | freebsd | netbsd | openbsd | irix6-5 | sol2* )
4238 AC_DEFINE(GC_SETJMP_WORKS, 1)
4243 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4244 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4247 [[#include <setjmp.h>
4249 # define _longjmp longjmp
4254 _longjmp (j, 1);]])],
4255 [emacs_cv_func__setjmp=yes],
4256 [emacs_cv_func__setjmp=no])])
4257 if test $emacs_cv_func__setjmp = yes; then
4258 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4260 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4263 [[#include <setjmp.h>
4266 if (! sigsetjmp (j, 1))
4267 siglongjmp (j, 1);]])],
4268 [emacs_cv_func_sigsetjmp=yes],
4269 [emacs_cv_func_sigsetjmp=no])])
4270 if test $emacs_cv_func_sigsetjmp = yes; then
4271 AC_DEFINE([HAVE_SIGSETJMP], 1,
4272 [Define to 1 if sigsetjmp and siglongjmp work.
4273 The value of this symbol is irrelevant if HAVE__SETJMP is defined.])
4279 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4280 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4281 dnl and this is all we need.
4282 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4289 dnl Used in xfaces.c.
4290 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4291 some systems, where it requires time.h.])
4296 dnl Define symbols to identify the version of Unix this is.
4297 dnl Define all the symbols that apply correctly.
4298 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4299 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4300 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4301 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4306 dnl This symbol should be defined on AIX Version 3 ???????
4307 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4309 # error "_AIX not defined"
4311 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4315 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4319 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
4320 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4321 dnl distinguish OS X from pure Darwin.
4322 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4325 gnu-linux | gnu-kfreebsd )
4327 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4332 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4337 AC_DEFINE(USG5_4, [])
4338 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4342 AC_DEFINE(DOS_NT, [])
4343 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4344 if test "x$ac_enable_checking" != "x" ; then
4345 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4351 AC_DEFINE(USG5_4, [])
4352 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4357 AC_DEFINE(USG5_4, [])
4361 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4364 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4365 emacs_cv_usable_FIONREAD=no
4369 emacs_cv_usable_FIONREAD=yes
4374 [AC_LANG_PROGRAM([[#include <sys/types.h>
4375 #include <sys/ioctl.h>
4377 # include <sys/filio.h>
4380 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4381 [emacs_cv_usable_FIONREAD=yes],
4382 [emacs_cv_usable_FIONREAD=no])
4385 if test $emacs_cv_usable_FIONREAD = yes; then
4386 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4388 if test $emacs_broken_SIGIO = no; then
4389 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4391 [AC_LANG_PROGRAM([[#include <fcntl.h>
4394 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4395 [emacs_cv_usable_SIGIO=yes],
4396 [emacs_cv_usable_SIGIO=no])],
4397 [emacs_cv_usable_SIGIO=yes],
4398 [emacs_cv_usable_SIGIO=no])
4399 if test $emacs_cv_usable_SIGIO = yes; then
4400 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4407 dnl Emacs supplies its own malloc, but glib calls posix_memalign,
4408 dnl and on Cygwin prior to version 1.7.24 that becomes the
4409 dnl Cygwin-supplied posix_memalign. As malloc is not the Cygwin
4410 dnl malloc, the Cygwin posix_memalign always returns ENOSYS. A
4411 dnl workaround is to set G_SLICE=always-malloc. This is no longer
4412 dnl needed starting with cygwin-1.7.24, and it is no longer
4413 dnl effective starting with glib-2.36. */
4415 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
4416 G_SLICE environment variable to "always-malloc" at startup.])
4420 dnl It works to open the pty's tty in the parent (Emacs), then
4421 dnl close and reopen it in the child.
4422 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4423 works to open a pty's tty in the parent process, then close and
4424 reopen it in the child.])
4428 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4429 use VSUSP instead of VSWTCH.])
4433 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4438 # Set up the CFLAGS for real compilation, so we can substitute it.
4439 CFLAGS="$REAL_CFLAGS"
4440 CPPFLAGS="$REAL_CPPFLAGS"
4442 ## Hack to detect a buggy GCC version.
4443 if test "x$GCC" = xyes \
4444 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4445 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4446 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4447 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4450 version=$PACKAGE_VERSION
4452 copyright="Copyright (C) 2013 Free Software Foundation, Inc."
4453 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4454 [Short copyright string for this version of Emacs.])
4457 ### Specify what sort of things we'll be editing into Makefile and config.h.
4458 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4460 AC_SUBST(configuration)
4465 AC_SUBST(exec_prefix)
4468 AC_SUBST(sharedstatedir)
4469 AC_SUBST(libexecdir)
4474 AC_SUBST(standardlisppath)
4475 AC_SUBST(locallisppath)
4477 AC_SUBST(x_default_search_path)
4479 AC_SUBST(archlibdir)
4484 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4485 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4486 ## end of LIBX_BASE, but nothing ever set it.
4487 AC_SUBST(LD_SWITCH_X_SITE)
4488 AC_SUBST(C_SWITCH_X_SITE)
4489 AC_SUBST(GNUSTEP_CFLAGS)
4491 ## Used in lwlib/Makefile.in.
4492 AC_SUBST(X_TOOLKIT_TYPE)
4494 AC_SUBST(ns_appbindir)
4495 AC_SUBST(ns_appresdir)
4497 AC_SUBST(GNU_OBJC_CFLAGS)
4498 AC_SUBST(OTHER_FILES)
4500 if test -n "${term_header}"; then
4501 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4502 [Define to the header for the built-in window system.])
4505 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4506 [Define to the canonical Emacs configuration name.])
4507 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4508 [Define to the options passed to configure.])
4509 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4510 define this to include extra configuration information.])
4514 AC_DEFINE(config_opsysfile, <ms-w32.h>, [])
4521 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4522 AC_DEFINE(HAVE_X_WINDOWS, 1,
4523 [Define to 1 if you want to use the X window system.])
4525 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4527 if test "$HAVE_XFT" = "yes"; then
4528 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4529 elif test "$HAVE_FREETYPE" = "yes"; then
4530 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4540 if test "${USE_X_TOOLKIT}" != "none" ; then
4542 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4543 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4544 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4545 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4546 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4550 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4551 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4555 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4556 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4557 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4561 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4562 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4565 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4568 AC_SUBST(WIDGET_OBJ)
4571 case "$USE_X_TOOLKIT" in
4572 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4573 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4574 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS -lXcomposite" ;;
4576 AC_SUBST(TOOLKIT_LIBW)
4578 if test "${opsys}" != "mingw32"; then
4579 if test "$USE_X_TOOLKIT" = "none"; then
4580 LIBXT_OTHER="\$(LIBXSM)"
4581 OLDXMENU_TARGET="really-oldXMenu"
4583 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4584 OLDXMENU_TARGET="really-lwlib"
4587 AC_SUBST(LIBXT_OTHER)
4589 ## The X Menu stuff is present in the X10 distribution, but missing
4590 ## from X11. If we have X10, just use the installed library;
4591 ## otherwise, use our own copy.
4592 if test "${HAVE_X11}" = "yes" ; then
4593 AC_DEFINE(HAVE_X11, 1,
4594 [Define to 1 if you want to use version 11 of X windows.
4595 Otherwise, Emacs expects to use version 10.])
4597 if test "$USE_X_TOOLKIT" = "none"; then
4598 OLDXMENU="\${oldXMenudir}/libXMenu11.a"
4600 OLDXMENU="\${lwlibdir}/liblw.a"
4602 LIBXMENU="\$(OLDXMENU)"
4603 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4604 OLDXMENU_DEPS="\${OLDXMENU} ../src/\${OLDXMENU}"
4606 ## For a syntactically valid Makefile; not actually used for anything.
4607 ## See comments in src/Makefile.in.
4609 ## FIXME This case (!HAVE_X11 && HAVE_X_WINDOWS) is no longer possible(?).
4610 if test "${HAVE_X_WINDOWS}" = "yes"; then
4619 if test "$HAVE_GTK" = "yes" || test "$HAVE_MENUS" != "yes"; then
4626 AC_SUBST(OLDXMENU_TARGET)
4629 AC_SUBST(LIBX_OTHER)
4630 AC_SUBST(OLDXMENU_DEPS)
4632 if test "${HAVE_MENUS}" = "yes" ; then
4633 AC_DEFINE(HAVE_MENUS, 1,
4634 [Define to 1 if you have mouse menus.
4635 (This is automatic if you use X, but the option to specify it remains.)
4636 It is also defined with other window systems that support xmenu.c.])
4639 if test "${GNU_MALLOC}" = "yes" ; then
4640 AC_DEFINE(GNU_MALLOC, 1,
4641 [Define to 1 if you want to use the GNU memory allocator.])
4645 if test "${REL_ALLOC}" = "yes" ; then
4646 AC_DEFINE(REL_ALLOC, 1,
4647 [Define REL_ALLOC if you want to use the relocating allocator for
4650 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4652 AC_SUBST(RALLOC_OBJ)
4654 if test "$opsys" = "cygwin"; then
4655 CYGWIN_OBJ="sheap.o cygw32.o"
4656 ## Cygwin differs because of its unexec().
4658 POST_ALLOC_OBJ=lastfile.o
4659 elif test "$opsys" = "mingw32"; then
4662 POST_ALLOC_OBJ=lastfile.o
4665 PRE_ALLOC_OBJ=lastfile.o
4668 AC_SUBST(CYGWIN_OBJ)
4669 AC_SUBST(PRE_ALLOC_OBJ)
4670 AC_SUBST(POST_ALLOC_OBJ)
4672 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4673 # it temporarily reverts them to their pre-pkg-config values,
4674 # because gnulib needs to work with both src (which uses the
4675 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4676 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4677 # and it therefore needs to run in an environment where LIBS does not
4678 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4679 # for some package unrelated to lib-src.
4682 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4683 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4684 gl_ASSERT_NO_GNULIB_POSIXCHECK
4685 gl_ASSERT_NO_GNULIB_TESTS
4690 if test "${opsys}" = "mingw32"; then
4691 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I $srcdir/nt/inc"
4692 # Remove unneeded switches from the value of CC that goes to Makefiles
4693 CC=`echo $CC | sed -e "s,$GCC_TEST_OPTIONS,,"`
4697 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4700 ## The -headerpad option tells ld (see man page) to leave room at the
4701 ## end of the header for adding load commands. Needed for dumping.
4702 ## 0x690 is the total size of 30 segment load commands (at 56
4703 ## each); under Cocoa 31 commands are required.
4704 if test "$HAVE_NS" = "yes"; then
4705 libs_nsgui="-framework AppKit"
4706 if test "$NS_IMPL_COCOA" = "yes"; then
4707 libs_nsgui="$libs_nsgui -framework IOKit"
4714 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4716 ## This is here because src/Makefile.in did some extra fiddling around
4717 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
4718 ## LD_SWITCH_SYSTEM_TEMACS instead,
4719 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4720 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4723 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4724 ## find X at run-time.
4725 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4726 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4727 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4728 ## had different values in configure (in ac_link) and src/Makefile.in.
4729 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4730 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4733 ## MinGW64 does not prepend an underscore to symbols, so we must
4734 ## pass a different -entry switch to linker. FIXME: It is better
4735 ## to make the entry points the same by changing unexw32.c.
4736 case "$canonical" in
4737 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,_start -Wl,-Map,./temacs.map" ;;
4738 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4742 openbsd) LD_SWITCH_SYSTEM_TEMACS='-nopie' ;;
4744 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4747 if test x$ac_enable_profiling != x ; then
4749 *freebsd | gnu-linux) ;;
4750 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
4754 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4756 ## MinGW-specific post-link processing of temacs.
4757 TEMACS_POST_LINK=":"
4760 if test "${opsys}" = "mingw32"; then
4761 TEMACS_POST_LINK="\$(MINGW_TEMACS_POST_LINK)"
4762 ADDSECTION="../nt/addsection\$(EXEEXT)"
4763 ## Preload heap size of temacs.exe in MB.
4764 case "$canonical" in
4765 x86_64-*-*) EMACS_HEAPSIZE=42 ;;
4766 *) EMACS_HEAPSIZE=27 ;;
4770 AC_SUBST(ADDSECTION)
4771 AC_SUBST(TEMACS_POST_LINK)
4772 AC_SUBST(EMACS_HEAPSIZE)
4774 ## Common for all window systems
4775 if test "$window_system" != "none"; then
4776 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4777 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4780 AC_SUBST(WINDOW_SYSTEM_OBJ)
4782 AH_TOP([/* GNU Emacs site configuration template file.
4784 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2013
4785 Free Software Foundation, Inc.
4787 This file is part of GNU Emacs.
4789 GNU Emacs is free software: you can redistribute it and/or modify
4790 it under the terms of the GNU General Public License as published by
4791 the Free Software Foundation, either version 3 of the License, or
4792 (at your option) any later version.
4794 GNU Emacs is distributed in the hope that it will be useful,
4795 but WITHOUT ANY WARRANTY; without even the implied warranty of
4796 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4797 GNU General Public License for more details.
4799 You should have received a copy of the GNU General Public License
4800 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4803 /* No code in Emacs #includes config.h twice, but some bits of code
4804 intended to work with other packages as well (like gmalloc.c)
4805 think they can include it as many times as they like. */
4806 #ifndef EMACS_CONFIG_H
4807 #define EMACS_CONFIG_H
4810 AH_BOTTOM([#include <conf_post.h>
4812 #endif /* EMACS_CONFIG_H */
4821 #### Report on what we decided to do.
4822 #### Report GTK as a toolkit, even if it doesn't use Xt.
4823 #### It makes printing result more understandable as using GTK sets
4824 #### toolkit_scroll_bars to yes by default.
4825 if test "${HAVE_GTK}" = "yes"; then
4826 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
4829 if test $USE_ACL -ne 0; then
4830 acl_summary="yes $LIB_ACL"
4836 Configured for \`${canonical}'.
4838 Where should the build process find the source code? ${srcdir}
4839 What compiler should emacs be built with? ${CC} ${CFLAGS}
4840 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4841 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4842 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4843 What window system should Emacs use? ${window_system}
4844 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4846 if test -n "${x_includes}"; then
4847 echo " Where do we find X Windows header files? ${x_includes}"
4849 echo " Where do we find X Windows header files? Standard dirs"
4851 if test -n "${x_libraries}"; then
4852 echo " Where do we find X Windows libraries? ${x_libraries}"
4854 echo " Where do we find X Windows libraries? Standard dirs"
4857 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4858 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4859 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4860 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4861 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4862 echo " Does Emacs use -lpng? ${HAVE_PNG}"
4863 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4864 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4866 echo " Does Emacs support sound? ${HAVE_SOUND}"
4868 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4869 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4870 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4871 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4872 echo " Does Emacs use a file notification library? ${NOTIFY_SUMMARY}"
4873 echo " Does Emacs use access control lists? ${acl_summary}"
4874 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4875 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4876 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4878 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4879 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4880 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
4881 echo " Does Emacs use -lxft? ${HAVE_XFT}"
4882 echo " Does Emacs directly use zlib? ${HAVE_ZLIB}"
4884 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
4886 echo " Does Emacs support Xwidgets? ${HAVE_XWIDGETS}"
4887 echo " Does xwidgets support webkit(requires gtk3)? ${HAVE_WEBKIT}"
4888 echo " Does xwidgets support gobject introspection? ${HAVE_GIR}"
4891 if test -n "${EMACSDATA}"; then
4892 echo " Environment variable EMACSDATA set to: $EMACSDATA"
4894 if test -n "${EMACSDOC}"; then
4895 echo " Environment variable EMACSDOC set to: $EMACSDOC"
4900 if test "$HAVE_NS" = "yes"; then
4902 echo "You must run \"${MAKE-make} install\" in order to test the built application.
4903 The installed application will go to nextstep/Emacs.app and can be
4904 run or moved from there."
4905 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
4906 echo "The application will be fully self-contained."
4908 echo "The lisp resources for the application will be installed under ${prefix}.
4909 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
4910 to run if these resources are not installed."
4915 if test "${opsys}" = "cygwin"; then
4917 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
4923 # Remove any trailing slashes in these variables.
4924 [test "${prefix}" != NONE &&
4925 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
4926 test "${exec_prefix}" != NONE &&
4927 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
4929 if test "$HAVE_NS" = "yes"; then
4930 if test "$NS_IMPL_GNUSTEP" = yes; then
4931 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
4932 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
4934 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
4935 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
4939 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
4940 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
4941 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
4942 dnl (else you get "no `Makefile.am' found for any configure output").
4943 dnl This will work, but you get a config.status that is not quite right
4944 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
4945 dnl That doesn't have any obvious consequences for Emacs, but on the whole
4946 dnl it seems better to just live with the duplication.
4947 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile nt/Makefile"
4949 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
4950 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
4951 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
4952 leim/Makefile nextstep/Makefile nt/Makefile])
4954 dnl test/ is not present in release tarfiles.
4955 opt_makefile=test/automated/Makefile
4957 if test -f "$srcdir/$opt_makefile.in"; then
4958 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4959 dnl Again, it's best not to use a variable. Though you can add
4960 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
4961 AC_CONFIG_FILES([test/automated/Makefile])
4965 dnl admin/ may or may not be present.
4966 opt_makefile=admin/unidata/Makefile
4968 if test -f "$srcdir/$opt_makefile.in"; then
4969 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4970 AC_CONFIG_FILES([admin/unidata/Makefile])
4974 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
4976 AC_SUBST(SUBDIR_MAKEFILES_IN)
4978 dnl You might wonder (I did) why epaths.h is generated by running make,
4979 dnl rather than just letting configure generate it from epaths.in.
4980 dnl One reason is that the various paths are not fully expanded (see above);
4981 dnl eg gamedir=${prefix}/var/games/emacs.
4982 dnl Secondly, the GNU Coding standards require that one should be able
4983 dnl to run `make prefix=/some/where/else' and override the values set
4984 dnl by configure. This also explains the `move-if-change' test and
4985 dnl the use of force in the `epaths-force' rule in Makefile.in.
4986 AC_CONFIG_COMMANDS([src/epaths.h], [
4987 if test "${opsys}" = "mingw32"; then
4988 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
4990 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
4992 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
4994 AC_CONFIG_COMMANDS([src/.gdbinit], [
4995 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
4996 echo "source $srcdir/src/.gdbinit" > src/.gdbinit