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, 1999-2014 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 dnl Note this is parsed by (at least) make-dist and lisp/cedet/ede/emacs.el.
26 AC_INIT(GNU Emacs, 24.4.50, bug-gnu-emacs@gnu.org)
28 dnl Set emacs_config_options to the options of 'configure', quoted for the shell,
29 dnl and then quoted again for a C string. Separate options with spaces.
30 dnl Add some environment variables, if they were passed via the environment
31 dnl rather than on the command-line.
34 dnl This is the documented way to record the args passed to configure,
35 dnl rather than $ac_configure_args.
36 for opt in ${1+"$@"} CFLAGS CPPFLAGS LDFLAGS; do
38 -n | --no-create | --no-recursion)
40 CFLAGS | CPPFLAGS | LDFLAGS)
41 eval 'test "${'$opt'+set}" = set' || continue
43 *" $opt="*) continue ;;
45 eval opt=$opt=\$$opt ;;
48 emacs_shell_specials=$IFS\''"#$&()*;<>?@<:@\\`{|~'
50 *[["$emacs_shell_specials"]]*)
53 emacs_quote_apostrophes="s/'/'\\\\''/g"
54 opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_apostrophes"` ;;
59 emacs_quote_for_c='s/[["\\]]/\\&/g; $!s/$/\\n\\/'
60 opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_for_c"` ;;
63 AS_VAR_APPEND([emacs_config_options], ["$optsep$opt"])
67 AC_CONFIG_HEADERS(src/config.h:src/config.in)
68 AC_CONFIG_SRCDIR(src/lisp.h)
69 AC_CONFIG_AUX_DIR(build-aux)
70 dnl automake 1.13 and later understand this, making -I m4 unnecessary.
71 dnl With older versions this is a no-op.
72 AC_CONFIG_MACRO_DIR(m4)
75 AC_CHECK_PROGS(XCRUN, [xcrun])
76 if test -n "$XCRUN"; then
77 if test -z "$MAKE"; then
78 dnl Call the variable MAKE_PROG, not MAKE, to avoid confusion with
79 dnl the usual MAKE variable that 'make' itself uses.
80 AC_CHECK_PROG([MAKE_PROG], [make], [yes])
81 if test -z "$MAKE_PROG"; then
84 xcsdkdir=`$XCRUN --show-sdk-path 2>/dev/null`
89 dnl GNU Make is required, so don't test for its individual features.
90 am_cv_make_support_nested_variables=yes
91 AC_DEFUN([AC_PROG_MAKE_SET],
93 AC_SUBST([SET_MAKE])])
95 dnl Check for GNU Make and possibly set MAKE before running AM_INIT_AUTOMAKE.
96 [emacs_check_gnu_make ()
98 emacs_makeout=`($1 --version) 2>/dev/null` &&
99 case $emacs_makeout in
100 'GNU Make '3.8[1-9]* | 'GNU Make '3.9[0-9]* | \
101 'GNU Make '3.[1-9][0-9][0-9]* | 'GNU Make '[4-9]* | 'GNU Make '[1-9][0-9]* )
102 ac_path_MAKE_found=:;;
105 AC_CACHE_CHECK([for GNU Make], [ac_cv_path_MAKE],
106 [ac_path_MAKE_found=false
107 if test -n "$MAKE"; then
108 emacs_check_gnu_make "$MAKE"
109 ac_cv_path_MAKE=$MAKE
111 emacs_tried_make=false
112 emacs_tried_gmake=false
113 emacs_tried_gnumake=false
114 AC_PATH_PROGS_FEATURE_CHECK([MAKE], [make gmake gnumake],
115 [[emacs_check_gnu_make "$ac_path_MAKE"
116 if $ac_path_MAKE_found; then
117 # Use the fully-qualified program name only if the basename
118 # would not resolve to it.
119 if eval \$emacs_tried_$ac_prog; then
120 ac_cv_path_MAKE=$ac_path_MAKE
122 ac_cv_path_MAKE=$ac_prog
125 eval emacs_tried_$ac_prog=:]])
127 $ac_path_MAKE_found || {
128 AC_MSG_ERROR([[Building Emacs requires GNU Make, at least version 3.81.
129 If you have it installed under another name, configure with 'MAKE=...'.
130 For example, run '$0 MAKE=gnu-make'.]])
132 MAKE=$ac_cv_path_MAKE
134 dnl Fairly arbitrary, older versions might work too.
135 AM_INIT_AUTOMAKE(1.11)
137 dnl Canonicalize the configuration name.
140 configuration=${host_alias-${build_alias-$host}}
142 dnl We get MINGW64 with MSYS2.
145 . $srcdir/nt/mingw-cfg.site
149 # srcdir is an absolute path. In this case, force the format
150 # "/c/foo/bar", to simplify later conversions to native Windows
151 # format ("c:/foo/bar").
152 srcdir=`cd "${srcdir}" && pwd -W`
153 srcdir="/${srcdir:0:1}${srcdir:2}"
158 dnl Support for --program-prefix, --program-suffix and
159 dnl --program-transform-name options
162 dnl It is important that variables on the RHS not be expanded here,
163 dnl hence the single quotes. This is per the GNU coding standards, see
164 dnl (autoconf) Installation Directory Variables
165 dnl See also epaths.h below.
166 lispdir='${datadir}/emacs/${version}/lisp'
167 standardlisppath='${lispdir}'
168 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
169 '${datadir}/emacs/site-lisp'
170 lisppath='${locallisppath}:${standardlisppath}'
171 etcdir='${datadir}/emacs/${version}/etc'
172 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
173 etcdocdir='${datadir}/emacs/${version}/etc'
174 gamedir='${localstatedir}/games/emacs'
176 dnl Special option to disable the most of other options.
178 [AS_HELP_STRING([--without-all],
179 [omit almost all features and build
180 small executable with minimal dependencies])],
181 [with_features=$withval],
184 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
185 dnl Create a new --with option that defaults to being disabled.
186 dnl NAME is the base name of the option. The shell variable with_NAME
187 dnl will be set to either the user's value (if the option is
188 dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
189 dnl option is not specified). Note that the shell variable name is
190 dnl constructed as autoconf does, by replacing non-alphanumeric
191 dnl characters with "_".
192 dnl HELP-STRING is the help text for the option.
193 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
194 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
195 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
198 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
199 dnl Create a new --with option that defaults to $with_features.
200 dnl NAME is the base name of the option. The shell variable with_NAME
201 dnl will be set either to 'no' (for a plain --without-NAME) or to
202 dnl 'yes' (if the option is not specified). Note that the shell
203 dnl variable name is constructed as autoconf does, by replacing
204 dnl non-alphanumeric characters with "_".
205 dnl HELP-STRING is the help text for the option.
206 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
207 AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
208 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=$with_features])dnl
211 OPTION_DEFAULT_ON([pop],[don't support POP mail retrieval with movemail])
212 if test "$with_pop" = yes; then
213 AC_DEFINE(MAIL_USE_POP)
215 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
217 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
218 if test "$with_kerberos" != no; then
221 AH_TEMPLATE(KERBEROS,
222 [Define to support Kerberos-authenticated POP mail retrieval.])dnl
224 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
225 if test "${with_kerberos5}" != no; then
226 if test "${with_kerberos}" = no; then
230 AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
233 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
234 dnl FIXME hesiod support may not be present, so it seems like an error
235 dnl to define, or at least use, this unconditionally.
236 if test "$with_hesiod" != no; then
237 AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
240 OPTION_DEFAULT_OFF([mmdf],[support MMDF mailboxes])
241 if test "$with_mmdf" != no; then
242 AC_DEFINE(MAIL_USE_MMDF, 1, [Define to support MMDF mailboxes in movemail.])
245 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
246 if test "$with_mail_unlink" != no; then
247 AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
250 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
251 [string giving default POP mail host])],
252 AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
254 AC_ARG_WITH([sound],[AS_HELP_STRING([--with-sound=VALUE],
255 [compile with sound support (VALUE one of: yes, alsa, oss, bsd-ossaudio, no;
256 default yes). Only for GNU/Linux, FreeBSD, NetBSD, MinGW.])],
257 [ case "${withval}" in
258 yes|no|alsa|oss|bsd-ossaudio) val=$withval ;;
259 *) AC_MSG_ERROR([`--with-sound=$withval' is invalid;
260 this option's value should be `yes', `no', `alsa', `oss', or `bsd-ossaudio'.])
265 [with_sound=$with_features])
267 dnl FIXME currently it is not the last.
268 dnl This should be the last --with option, because --with-x is
269 dnl added later on when we find the file name of X, and it's best to
270 dnl keep them together visually.
271 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
272 [use an X toolkit (KIT one of: yes or gtk, gtk2, gtk3, lucid or athena, motif, no)])],
273 [ case "${withval}" in
274 y | ye | yes ) val=gtk ;;
276 l | lu | luc | luci | lucid ) val=lucid ;;
277 a | at | ath | athe | athen | athena ) val=athena ;;
278 m | mo | mot | moti | motif ) val=motif ;;
279 g | gt | gtk ) val=gtk ;;
283 AC_MSG_ERROR([`--with-x-toolkit=$withval' is invalid;
284 this option's value should be `yes', `no', `lucid', `athena', `motif', `gtk',
285 `gtk2' or `gtk3'. `yes' and `gtk' are synonyms.
286 `athena' and `lucid' are synonyms.])
292 OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit)])
293 if test "$with_wide_int" = yes; then
294 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
297 dnl _ON results in a '--without' option in the --help output, so
298 dnl the help text should refer to "don't compile", etc.
299 with_xpm_set=${with_xpm+set}
300 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
301 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
302 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
303 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
304 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
305 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
306 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
307 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
309 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
310 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
311 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
313 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
314 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
315 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
316 OPTION_DEFAULT_OFF([ns],[use NeXTstep (Cocoa or GNUstep) windowing system])
317 OPTION_DEFAULT_OFF([w32], [use native MS Windows GUI in a Cygwin build])
319 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
320 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
321 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
322 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
323 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
324 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
325 OPTION_DEFAULT_ON([zlib],[don't compile with zlib decompression support])
327 AC_ARG_WITH([file-notification],[AS_HELP_STRING([--with-file-notification=LIB],
328 [use a file notification library (LIB one of: yes, gfile, inotify, w32, no)])],
329 [ case "${withval}" in
330 y | ye | yes ) val=yes ;;
332 g | gf | gfi | gfil | gfile ) val=gfile ;;
333 i | in | ino | inot | inoti | inotif | inotify ) val=inotify ;;
334 w | w3 | w32 ) val=w32 ;;
335 * ) AC_MSG_ERROR([`--with-file-notification=$withval' is invalid;
336 this option's value should be `yes', `no', `gfile', `inotify' or `w32'.
337 `yes' is a synonym for `w32' on MS-Windows, for `no' on Nextstep,
338 otherwise for the first of `gfile' or `inotify' that is usable.])
341 with_file_notification=$val
343 [with_file_notification=$with_features])
345 ## For the times when you want to build Emacs but don't have
346 ## a suitable makeinfo, and can live without the manuals.
347 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
348 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
350 ## This might be a 'configure' arg.
351 AC_SUBST([ACLOCAL_PATH])
353 ## Makefile.in needs the cache file name.
356 ## This is an option because I do not know if all info/man support
357 ## compressed files, nor how to test if they do so.
358 OPTION_DEFAULT_ON([compress-install],
359 [don't compress some files (.el, .info, etc.) when installing. Equivalent to:
360 make GZIP_PROG= install])
362 AC_ARG_WITH(gameuser,dnl
363 [AS_HELP_STRING([--with-gameuser=USER],[user for shared game score files])])
364 test "X${with_gameuser}" != X && test "${with_gameuser}" != yes \
365 && gameuser="${with_gameuser}"
366 test "X$gameuser" = X && gameuser=games
368 AC_ARG_WITH([gnustep-conf],dnl
369 [AS_HELP_STRING([--with-gnustep-conf=FILENAME],
370 [name of GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
371 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
372 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
373 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
374 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
376 AC_ARG_ENABLE(ns-self-contained,
377 [AS_HELP_STRING([--disable-ns-self-contained],
378 [disable self contained build under NeXTstep])],
379 EN_NS_SELF_CONTAINED=$enableval,
380 EN_NS_SELF_CONTAINED=yes)
382 AC_ARG_ENABLE(locallisppath,
383 [AS_HELP_STRING([--enable-locallisppath=PATH],
384 [directories Emacs should search for lisp files specific
386 if test "${enableval}" = "no"; then
388 elif test "${enableval}" != "yes"; then
389 locallisppath=${enableval}
392 AC_ARG_ENABLE(checking,
393 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
394 [enable expensive run-time checks])]
395 [ac_checking_flags="${enableval}"],[])
396 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
397 for check in $ac_checking_flags
400 # these set all the flags to specific states
401 yes) ac_enable_checking=1 ;;
402 all) ac_enable_checking=1 ;;
403 *) AC_MSG_ERROR(unknown check category $check) ;;
408 if test x$ac_enable_checking != x ; then
409 AC_DEFINE(ENABLE_CHECKING, 1,
410 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
413 AC_ARG_ENABLE(check-lisp-object-type,
414 [AS_HELP_STRING([--enable-check-lisp-object-type],
415 [enable compile time checks for the Lisp_Object data type.
416 This is useful for development for catching certain types of bugs.])],
417 if test "${enableval}" != "no"; then
418 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
419 [Define this to enable compile time checks for the Lisp_Object data type.])
423 dnl The name of this option is unfortunate. It predates, and has no
424 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
425 dnl Actually, it stops it working.
426 dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
427 AC_ARG_ENABLE(profiling,
428 [AS_HELP_STRING([--enable-profiling],
429 [build emacs with low-level, gprof profiling support.
430 Mainly useful for debugging Emacs itself. May not work on
431 all platforms. Stops profiler.el working.])],
432 [ac_enable_profiling="${enableval}"],[])
433 if test x$ac_enable_profiling != x ; then
434 PROFILING_CFLAGS="-DPROFILING=1 -pg"
438 AC_SUBST(PROFILING_CFLAGS)
440 AC_ARG_ENABLE(autodepend,
441 [AS_HELP_STRING([--enable-autodepend],
442 [automatically generate dependencies to .h-files.
443 Requires gcc, enabled if found.])],
444 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
446 AC_ARG_ENABLE(gtk-deprecation-warnings,
447 [AS_HELP_STRING([--enable-gtk-deprecation-warnings],
448 [Show Gtk+/Gdk deprecation warnings for Gtk+ >= 3.0])],
449 [ac_enable_gtk_deprecation_warnings="${enableval}"],[])
451 dnl This used to use changequote, but, apart from `changequote is evil'
452 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
453 dnl the great gob of text. Thus it's not processed for possible expansion.
454 dnl Just make sure the brackets remain balanced.
456 dnl Since Emacs can't find matching pairs of quotes, boundaries are
457 dnl indicated by comments.
461 ### If you add support for a new configuration, add code to this
462 ### switch statement to recognize your configuration name and select
463 ### the appropriate opsys.
465 ### As far as handling version numbers on operating systems is
466 ### concerned, make sure things will fail in a fixable way. If
467 ### /etc/MACHINES doesn't say anything about version numbers, be
468 ### prepared to handle anything reasonably. If version numbers
469 ### matter, be sure /etc/MACHINES says something about it.
472 case "${canonical}" in
474 ## GNU/Linux and similar ports
489 ## FreeBSD kernel + glibc based userland
500 *-*-openbsd* | *-*-mirbsd* )
504 ## Apple Darwin / Mac OS X
506 case "${canonical}" in
513 ## Use fink packages if available.
514 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
515 ## if test -d /sw/include && test -d /sw/lib; then
516 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
517 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
526 ## HP 9000 series 700 and 800, running HP/UX
530 hppa*-hp-hpux1[1-9]* )
532 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
536 rs6000-ibm-aix4.[23]* )
539 powerpc-ibm-aix4.[23]* )
542 rs6000-ibm-aix[56]* )
545 powerpc-ibm-aix[5-9]* | powerpc-ibm-aix[1-9][0-9]* )
549 ## Silicon Graphics machines
553 # Without defining _LANGUAGE_C, things get masked out in the headers
554 # so that, for instance, grepping for `free' in stdlib.h fails and
555 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
556 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
561 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
562 | x86_64-*-solaris2* | x86_64-*-sunos5*)
563 case "${canonical}" in
565 amd64-*-*|x86_64-*-*) ;;
569 case "${canonical}" in
570 *-sunos5.[1-9][0-9]* | *-solaris2.[1-9][0-9]* )
572 emacs_check_sunpro_c=yes
574 *-sunos5.[1-5]* | *-solaris2.[1-5]* ) unported=yes ;;
575 ## Note that Emacs 23.1's NEWS said the following would be dropped.
576 *-sunos5.6* | *-solaris2.6* )
580 ## 5.7 EOL Aug 2008, 5.8 EOL Mar 2012.
581 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
583 emacs_check_sunpro_c=yes
586 ## Watch out for a compiler that we know will not work.
587 case "${canonical}" in
588 *-solaris* | *-sunos5* )
589 if [ "x$CC" = x/usr/ucb/cc ]; then
590 ## /usr/ucb/cc doesn't work;
591 ## we should find some other compiler that does work.
599 ## Intel 386 machines where we don't care about the manufacturer.
601 case "${canonical}" in
602 *-darwin* ) opsys=darwin ;;
605 # MinGW overrides and adds some system headers in nt/inc.
606 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
608 *-sysv4.2uw* ) opsys=unixware ;;
609 *-sysv5uw* ) opsys=unixware ;;
610 *-sysv5OpenUNIX* ) opsys=unixware ;;
611 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
617 case "${canonical}" in
620 # MinGW overrides and adds some system headers in nt/inc.
621 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
623 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
632 ### If the code above didn't choose an operating system, just choose
633 ### an operating system based on the configuration name. You really
634 ### only want to use this when you have no idea what the right
635 ### operating system is; if you know what operating systems a machine
636 ### runs, it's cleaner to make it explicit in the case statement
638 if test x"${opsys}" = x; then
639 case "${canonical}" in
640 *-gnu* ) opsys=gnu ;;
650 if test $unported = yes; then
651 AC_MSG_ERROR([Emacs does not support `${canonical}' systems.
652 If you think it should, please send a report to ${PACKAGE_BUGREPORT}.
653 Check `etc/MACHINES' for recognized configuration names.])
657 #### Choose a compiler.
659 dnl Don't bother to test for C89.
660 AC_DEFUN([_AC_PROG_CC_C89], [$2])
662 dnl Sets GCC=yes if using gcc.
663 AC_PROG_CC([gcc cc cl clang "$XCRUN gcc" "$XCRUN clang"])
664 if test -n "$XCRUN"; then
665 AC_CHECK_PROGS(AR, [ar "$XCRUN ar"])
666 test -n "$AR" && export AR
669 dnl Emacs needs C99 or later.
674 if test x$GCC = xyes; then
675 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
677 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
680 dnl This is used in lib/Makefile.am to use nt/gnulib.mk, the
681 dnl alternative to lib/gnulib.mk, so as to avoid generating header files
682 dnl that clash with MinGW.
683 AM_CONDITIONAL([BUILDING_FOR_WINDOWSNT], [test "x$opsys" = "xmingw32"])
685 # Avoid gnulib's tests for -lcrypto, so that there's no static dependency on it.
686 AC_DEFUN([gl_CRYPTO_CHECK])
687 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
688 # as we don't use them.
689 AC_DEFUN([gl_FCNTL_O_FLAGS])
691 # Initialize gnulib right after choosing the compiler.
692 dnl Amongst other things, this sets AR and ARFLAGS.
695 if test "$ac_test_CFLAGS" != set; then
696 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
697 # if -g3 works and the user does not specify CFLAGS.
698 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
701 emacs_g3_CFLAGS='-g3';;
703 emacs_g3_CFLAGS='-g3 -O2';;
707 if test -n "$emacs_g3_CFLAGS"; then
708 emacs_save_CFLAGS=$CFLAGS
709 CFLAGS=$emacs_g3_CFLAGS
710 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
711 [emacs_cv_prog_cc_g3],
712 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
713 [emacs_cv_prog_cc_g3=yes],
714 [emacs_cv_prog_cc_g3=no])])
715 if test $emacs_cv_prog_cc_g3 != yes; then
716 CFLAGS=$emacs_save_CFLAGS
718 if test $opsys = mingw32; then
719 CFLAGS="$CFLAGS -gdwarf-2"
726 # No optimization flag was inferred for this non-GCC compiler.
727 # Try -O. This is needed for xlc on AIX; see Bug#14258.
728 emacs_save_CFLAGS=$CFLAGS
729 test -z "$CFLAGS" || CFLAGS="$CFLAGS "
731 AC_CACHE_CHECK([whether $CC accepts -O],
732 [emacs_cv_prog_cc_o],
733 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
734 [emacs_cv_prog_cc_o=yes],
735 [emacs_cv_prog_cc_o=no])])
736 if test $emacs_cv_prog_cc_o != yes; then
737 CFLAGS=$emacs_save_CFLAGS
742 AC_ARG_ENABLE([gcc-warnings],
743 [AS_HELP_STRING([--enable-gcc-warnings],
744 [turn on lots of GCC warnings/errors. This is intended for
745 developers, and may generate false alarms when used
746 with older or non-GNU development tools.])],
749 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
751 gl_gcc_warnings=$enableval],
755 # clang is unduly picky about some things.
756 AC_CACHE_CHECK([whether the compiler is clang], [emacs_cv_clang],
763 [emacs_cv_clang=yes],
764 [emacs_cv_clang=no])])
766 # When compiling with GCC, prefer -isystem to -I when including system
767 # include files, to avoid generating useless diagnostics for the files.
768 if test "$gl_gcc_warnings" != yes; then
770 if test "$emacs_cv_clang" = yes
772 # Turn off some warnings if supported.
773 gl_WARN_ADD([-Wno-switch])
774 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
775 gl_WARN_ADD([-Wno-pointer-sign])
780 # This, $nw, is the list of warnings we disable.
783 case $with_x_toolkit in
784 lucid | athena | motif)
785 # Old toolkits mishandle 'const'.
786 nw="$nw -Wwrite-strings"
789 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
792 AC_SUBST([WERROR_CFLAGS])
794 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
795 nw="$nw -Woverlength-strings" # Not a problem these days
796 nw="$nw -Wlogical-op" # any use of fwrite provokes this
797 nw="$nw -Wformat-nonliteral" # we do this a lot
798 nw="$nw -Wvla" # warnings in gettext.h
799 nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
800 nw="$nw -Wswitch-default" # Too many warnings for now
801 nw="$nw -Winline" # OK to ignore 'inline'
802 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
803 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
804 # signed overflow has undefined behavior
805 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
806 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
807 nw="$nw -Wbad-function-cast" # These casts are no worse than others.
809 # Emacs doesn't care about shadowing; see
810 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
813 # Emacs's use of alloca inhibits protecting the stack.
814 nw="$nw -Wstack-protector"
816 # The following line should be removable at some point.
817 nw="$nw -Wsuggest-attribute=pure"
819 # This part is merely for shortening the command line,
820 # since -Wno-FOO needs to be added below regardless.
821 nw="$nw -Wmissing-field-initializers"
823 nw="$nw -Wtype-limits"
824 nw="$nw -Wunused-parameter"
826 if test $emacs_cv_clang = yes; then
827 nw="$nw -Wcast-align"
830 gl_MANYWARN_ALL_GCC([ws])
831 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
835 gl_WARN_ADD([-Wredundant-decls]) # Prefer this, as we don't use Bison.
836 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
837 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
838 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
839 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
840 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
841 gl_WARN_ADD([-Wno-format-nonliteral])
843 # In spite of excluding -Wlogical-op above, it is enabled, as of
844 # gcc 4.5.0 20090517.
845 gl_WARN_ADD([-Wno-logical-op])
847 # More things that clang is unduly picky about.
848 if test $emacs_cv_clang = yes; then
849 gl_WARN_ADD([-Wno-format-extra-args])
850 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
851 gl_WARN_ADD([-Wno-unused-command-line-argument])
852 gl_WARN_ADD([-Wno-unused-value])
855 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
856 AH_VERBATIM([FORTIFY_SOURCE],
857 [/* Enable compile-time and run-time bounds-checking, and some warnings,
858 without upsetting glibc 2.15+. */
859 #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
860 # define _FORTIFY_SOURCE 2
863 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
865 # We use a slightly smaller set of warning options for lib/.
866 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
868 nw="$nw -Wunused-macros"
870 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
871 AC_SUBST([GNULIB_WARN_CFLAGS])
881 AC_ARG_ENABLE(link-time-optimization,
882 [AS_HELP_STRING([--enable-link-time-optimization],
883 [build emacs with link-time optimization.
884 This requires GCC 4.5.0 or later, or clang.
885 (Note that clang support is experimental - see INSTALL.)
886 It also makes Emacs harder to debug, and when we tried it
887 with GCC 4.9.0 x86-64 it made Emacs slower, so it's not
888 recommended for typical use.])],
889 if test "${enableval}" != "no"; then
891 if test $emacs_cv_clang = yes; then
892 AC_MSG_CHECKING([whether link-time optimization is supported by clang])
893 GOLD_PLUGIN=`$CC -print-file-name=LLVMgold.so 2>/dev/null`
894 if test -x "$GOLD_PLUGIN"; then
897 elif test x$GCC = xyes; then
898 AC_MSG_CHECKING([whether link-time optimization is supported by gcc])
899 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
900 if test x$CPUS != x; then
906 AC_MSG_ERROR([Link-time optimization is not supported with your compiler.])
908 if test -z "$LTO"; then
912 CFLAGS="$CFLAGS $LTO"
913 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
914 [ac_lto_supported=yes], [ac_lto_supported=no])
917 AC_MSG_RESULT([$ac_lto_supported])
918 if test "$ac_lto_supported" = "yes"; then
919 CFLAGS="$CFLAGS $LTO"
920 if test x$emacs_cv_clang = xyes; then
921 AC_MSG_WARN([Please read INSTALL before using link-time optimization with clang])
922 # WARNING: 'ar --plugin ...' doesn't work without
923 # command, so plugin name is appended to ARFLAGS.
924 ARFLAGS="cru --plugin $GOLD_PLUGIN"
925 RANLIB="$RANLIB --plugin $GOLD_PLUGIN"
927 dnl The following is needed for GCC 4.9.0. The GCC 4.9.0 release notes
928 dnl suggest that instead of -ffat-lto-objects we should use gcc-ar and
929 dnl gcc-ranlib in place of ar and ranlib, but gcc-ar makes /usr/bin/ar
930 dnl dump core on Fedora 20, so play it safe for now.
931 gl_COMPILER_OPTION_IF([-ffat-lto-objects],
932 [CFLAGS="$CFLAGS -ffat-lto-objects"])
937 dnl Some other nice autoconf tests.
938 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
941 dnl if test "x$RANLIB" = x; then
946 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
947 dnl can be made to directories. This is not relevant for our usage, and
948 dnl excludes some cases that work fine for us. Eg MS Windows or files
949 dnl hosted on AFS, both examples where simple links work, but links to
950 dnl directories fail. We use a cut-down version instead.
953 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
954 rm -f conf$$ conf$$.file
956 LN_S_FILEONLY='cp -p'
958 dnl On MinGW, ensure we will call the MSYS /bin/ln.exe, not some
959 dnl random program in the current directory.
960 if (echo >conf$$.file) 2>/dev/null; then
961 if ln -s conf$$.file conf$$ 2>/dev/null; then
962 if test "$opsys" = "mingw32"; then
963 LN_S_FILEONLY='/bin/ln -s'
965 LN_S_FILEONLY='ln -s'
967 elif ln conf$$.file conf$$ 2>/dev/null; then
968 if test "$opsys" = "mingw32"; then
969 LN_S_FILEONLY=/bin/ln
976 rm -f conf$$ conf$$.file
978 if test "$LN_S_FILEONLY" = "ln -s"; then
981 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
984 AC_SUBST(LN_S_FILEONLY)
987 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
988 dnl doesn't support links to directories, as in "ln file dir". But that
989 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
990 dnl executables at "make install" time.
991 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
992 dnl for more details.
993 if test "$opsys" = "mingw32"; then
997 dnl On some Debian versions, "install-info" prints irritating messages
998 dnl "This is not dpkg install-info anymore, but GNU install-info"
999 dnl if called via an absolute file name.
1000 dnl Use the entirely-identical-but-quieter ginstall-info instead if present.
1001 dnl Sadly some people may have an old ginstall-info installed on
1002 dnl non-Debian systems, so we can't use this.
1003 dnl AC_PATH_PROGS(INSTALL_INFO, [ginstall-info install-info], :,
1004 dnl $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1006 AC_PATH_PROG(INSTALL_INFO, install-info, :,
1007 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1008 dnl Don't use GZIP, which is used by gzip for additional parameters.
1009 AC_PATH_PROG(GZIP_PROG, gzip)
1011 test $with_compress_install != yes && test -n "$GZIP_PROG" && \
1012 GZIP_PROG=" # $GZIP_PROG # (disabled by configure --without-compress-install)"
1014 if test $opsys = gnu-linux; then
1015 AC_PATH_PROG(PAXCTL, paxctl,,
1016 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
1017 if test "X$PAXCTL" != X; then
1018 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
1019 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1020 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
1021 else AC_MSG_RESULT(no); PAXCTL=""; fi])
1024 if test "${SETFATTR+set}" != set; then
1025 AC_CACHE_CHECK([for setfattr],
1026 [emacs_cv_prog_setfattr],
1028 if (setfattr -n user.pax.flags conftest.tmp) >/dev/null 2>&1; then
1029 emacs_cv_prog_setfattr=yes
1031 emacs_cv_prog_setfattr=no
1033 if test "$emacs_cv_prog_setfattr" = yes; then
1039 AC_SUBST([SETFATTR])
1043 ## Need makeinfo >= 4.7 (?) to build the manuals.
1044 AC_PATH_PROG(MAKEINFO, makeinfo, no)
1045 dnl By this stage, configure has already checked for egrep and set EGREP,
1046 dnl or exited with an error if no egrep was found.
1047 if test "$MAKEINFO" != "no"; then
1049 $MAKEINFO --version 2> /dev/null |
1050 $EGREP 'texinfo[[^0-9]]*([[1-4]][[0-9]]+|[[5-9]]|4\.[[7-9]]|4\.[[1-6]][[0-9]]+)'
1056 ## Makeinfo is unusual. For a released Emacs, the manuals are
1057 ## pre-built, and not deleted by the normal clean rules. makeinfo is
1058 ## therefore in the category of "special tools" not normally required, which
1059 ## configure does not have to check for (eg autoconf itself).
1060 ## In a repository checkout on the other hand, the manuals are not included.
1061 ## So makeinfo is a requirement to build from the repository, and configure
1062 ## should test for it as it does for any other build requirement.
1063 ## We use the presence of $srcdir/info/emacs to distinguish a release,
1064 ## with pre-built manuals, from a repository checkout.
1067 if test "$MAKEINFO" = "no"; then
1069 if test "x${with_makeinfo}" = "xno"; then
1071 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
1072 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
1073 source tree does not seem to have pre-built manuals in the `info' directory.
1074 Either install a suitable version of makeinfo, or re-run configure
1075 with the `--without-makeinfo' option to build without the manuals.] )
1078 AC_SUBST(HAVE_MAKEINFO)
1080 if test $opsys = mingw32; then
1081 DOCMISC_W32=efaq-w32
1085 AC_SUBST(DOCMISC_W32)
1087 dnl Add our options to ac_link now, after it is set up.
1089 if test x$GCC = xyes; then
1090 test "x$GCC_LINK_TEST_OPTIONS" != x && \
1091 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1093 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
1094 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1097 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
1098 dnl If we can link with the flag, it shouldn't do any harm anyhow.
1099 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
1100 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
1101 dnl if not built to support GNU ld.
1103 dnl For a long time, -znocombreloc was added to LDFLAGS rather than
1104 dnl LD_SWITCH_SYSTEM_TEMACS. That is:
1105 dnl * inappropriate, as LDFLAGS is a user option but this is essential.
1106 dnl Eg "make LDFLAGS=... all" could run into problems,
1107 dnl http://bugs.debian.org/684788
1108 dnl * unnecessary, since temacs is the only thing that actually needs it.
1109 dnl Indeed this is where it was originally, prior to:
1110 dnl http://lists.gnu.org/archive/html/emacs-pretest-bug/2004-03/msg00170.html
1111 late_LDFLAGS="$LDFLAGS"
1112 if test x$GCC = xyes; then
1113 LDFLAGS_NOCOMBRELOC="-Wl,-znocombreloc"
1115 LDFLAGS_NOCOMBRELOC="-znocombreloc"
1118 LDFLAGS="$LDFLAGS $LDFLAGS_NOCOMBRELOC"
1120 AC_MSG_CHECKING([for -znocombreloc])
1121 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1122 [AC_MSG_RESULT(yes)],
1123 LDFLAGS_NOCOMBRELOC=
1124 [AC_MSG_RESULT(no)])
1126 LDFLAGS="$late_LDFLAGS"
1128 AC_CACHE_CHECK([whether addresses are sanitized],
1129 [emacs_cv_sanitize_address],
1132 [[#ifndef __has_feature
1133 #define __has_feature(f) 0
1135 #if defined __SANITIZE_ADDRESS__ || __has_feature (address_sanitizer)
1137 error "Addresses are not sanitized.";
1140 [emacs_cv_sanitize_address=yes],
1141 [emacs_cv_sanitize_address=no])])
1143 dnl The function dump-emacs will not be defined and temacs will do
1144 dnl (load "loadup") automatically unless told otherwise.
1145 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1146 AC_SUBST(CANNOT_DUMP, yes)
1148 UNEXEC_OBJ=unexelf.o
1150 # MSDOS uses unexcoff.o
1152 UNEXEC_OBJ=unexaix.o
1158 UNEXEC_OBJ=unexmacosx.o
1161 UNEXEC_OBJ=unexhp9k800.o
1164 UNEXEC_OBJ=unexw32.o
1167 # Use the Solaris dldump() function, called from unexsol.c, to dump
1168 # emacs, instead of the generic ELF dump code found in unexelf.c.
1169 # The resulting binary has a complete symbol table, and is better
1170 # for debugging and other observability tools (debuggers, pstack, etc).
1172 # If you encounter a problem using dldump(), please consider sending
1173 # a message to the OpenSolaris tools-linking mailing list:
1174 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1176 # It is likely that dldump() works with older Solaris too, but this has
1177 # not been tested, so for now this change is for Solaris 10 or newer.
1178 UNEXEC_OBJ=unexsol.o
1185 ## Let `ld' find image libs and similar things in /usr/local/lib.
1186 ## The system compiler, GCC, has apparently been modified to not
1187 ## look there, contrary to what a stock GCC would do.
1188 ### It's not our place to do this. See bug#10313#17.
1189 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1194 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1195 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1199 ### It's not our place to do this. See bug#10313#17.
1200 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1205 ## Han Boetes <han@boetes.org> says this is necessary,
1206 ## otherwise Emacs dumps core on elf systems.
1207 LD_SWITCH_SYSTEM="-Z"
1210 AC_SUBST(LD_SWITCH_SYSTEM)
1212 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1214 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1215 ## which has not been defined yet. When this was handled with cpp,
1216 ## it was expanded to null when configure sourced the s/*.h file.
1217 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1218 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1219 ## (or somesuch), but because it is supposed to go at the _front_
1220 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1221 ## Compare with the gnu-linux case below, which added to the end
1222 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1223 ## LD_SWITCH_SYSTEM_TEMACS.
1226 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1233 AC_CHECK_DECL([__ELF__])
1234 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1235 ## With ELF, make sure that all common symbols get allocated to in the
1236 ## data section. Otherwise, the dump of temacs may miss variables in
1237 ## the shared library that have been initialized. For example, with
1238 ## GNU libc, __malloc_initialized would normally be resolved to the
1239 ## shared library's .bss section, which is fatal.
1240 if test "x$GCC" = "xyes"; then
1241 C_SWITCH_MACHINE="-fno-common"
1243 AC_MSG_ERROR([Non-GCC compilers are not supported.])
1246 dnl This was the unexalpha.c case. Removed in 24.1, 2010-07-24,
1247 dnl albeit under the mistaken assumption that said file
1248 dnl was no longer used.
1249 AC_MSG_ERROR([Non-ELF systems are not supported since Emacs 24.1.])
1253 AC_SUBST(C_SWITCH_MACHINE)
1255 AC_SUBST(UNEXEC_OBJ)
1258 ## Some programs in src produce warnings saying certain subprograms
1259 ## are too complex and need a MAXMEM value greater than 2000 for
1260 ## additional optimization. --nils@exp-math.uni-essen.de
1261 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1262 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1263 if test "$opsys" = "mingw32"; then
1264 case "$canonical" in
1265 x86_64-*-mingw32) C_SWITCH_SYSTEM="-mtune=generic" ;;
1266 *) C_SWITCH_SYSTEM="-mtune=pentium4" ;;
1269 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1270 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1271 AC_SUBST(C_SWITCH_SYSTEM)
1276 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1277 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1279 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1281 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1283 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1285 ## Motif needs -lgen.
1286 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1289 AC_SUBST(LIBS_SYSTEM)
1291 ### Make sure subsequent tests use flags consistent with the build flags.
1293 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1294 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1296 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1299 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C99 or better.
1300 AC_DEFUN([AC_TYPE_SIZE_T])
1301 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1302 AC_DEFUN([AC_TYPE_UID_T])
1304 # sqrt and other floating-point functions such as fmod and frexp
1305 # are found in -lm on many systems.
1307 AC_SEARCH_LIBS([sqrt], [m])
1308 if test "X$LIBS" = "X$OLD_LIBS"; then
1311 LIB_MATH=$ac_cv_search_sqrt
1315 dnl Current possibilities handled by sed (aix4-2 -> aix,
1316 dnl gnu-linux -> gnu/linux, etc.):
1317 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1318 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1319 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1326 ## Adding -lm confuses the dynamic linker, so omit it.
1329 freebsd | dragonfly )
1330 SYSTEM_TYPE=berkeley-unix
1332 gnu-linux | gnu-kfreebsd )
1334 hpux10-20 | hpux11 )
1338 SYSTEM_TYPE=windows-nt
1340 dnl NB this may be adjusted below.
1342 SYSTEM_TYPE=berkeley-unix
1346 SYSTEM_TYPE=usg-unix-v
1352 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1353 [The type of system you are compiling for; sets `system-type'.])
1356 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1357 pre_PKG_CONFIG_LIBS=$LIBS
1359 PKG_PROG_PKG_CONFIG(0.9.0)
1361 dnl EMACS_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4)
1362 dnl acts like PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4,
1363 dnl HAVE_GSTUFF=yes, HAVE_GSTUFF=no) -- see pkg-config man page --
1364 dnl except that it postprocesses CFLAGS as needed for --enable-gcc-warnings.
1365 dnl EMACS_CHECK_MODULES accepts optional 3rd and 4th arguments that
1366 dnl can take the place of the default HAVE_GSTUFF=yes and HAVE_GSTUFF=no
1368 AC_DEFUN([EMACS_CHECK_MODULES],
1369 [PKG_CHECK_MODULES([$1], [$2],
1370 [$1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1371 m4_default([$3], [HAVE_$1=yes])],
1372 [m4_default([$4], [HAVE_$1=no])])])
1374 PKG_CHECK_MODULES([BDW_GC], [bdw-gc])
1375 AC_SUBST(BDW_GC_CFLAGS)
1376 AC_SUBST(BDW_GC_LIBS)
1377 CFLAGS="$CFLAGS $BDW_GC_CFLAGS"
1378 LIBS="$BDW_GC_LIBS $LIBS"
1382 if test "${with_sound}" != "no"; then
1383 # Sound support for GNU/Linux, the free BSDs, and MinGW.
1384 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h],
1385 have_sound_header=yes, [], [
1387 #define WIN32_LEAN_AND_MEAN
1388 #include <windows.h>
1391 test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
1392 AC_MSG_ERROR([OSS sound support requested but not found.])
1394 if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
1395 # Emulation library used on NetBSD.
1396 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1397 test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
1398 AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
1399 dnl FIXME? If we did find ossaudio, should we set with_sound=bsd-ossaudio?
1400 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1404 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1406 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1407 EMACS_CHECK_MODULES([ALSA], [$ALSA_MODULES])
1408 if test $HAVE_ALSA = yes; then
1409 SAVE_CFLAGS="$CFLAGS"
1411 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1412 LIBS="$ALSA_LIBS $LIBS"
1413 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1414 emacs_alsa_normal=yes,
1415 emacs_alsa_normal=no)
1416 if test "$emacs_alsa_normal" != yes; then
1417 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1418 [[snd_lib_error_set_handler (0);]])],
1419 emacs_alsa_subdir=yes,
1420 emacs_alsa_subdir=no)
1421 if test "$emacs_alsa_subdir" != yes; then
1422 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1424 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1427 CFLAGS="$SAVE_CFLAGS"
1429 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1430 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1431 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1432 elif test "${with_sound}" = "alsa"; then
1433 AC_MSG_ERROR([ALSA sound support requested but not found.])
1435 fi dnl with_sound = alsa|yes
1437 dnl Define HAVE_SOUND if we have sound support. We know it works and
1438 dnl compiles only on the specified platforms. For others, it
1439 dnl probably doesn't make sense to try.
1440 dnl FIXME So surely we should bypass this whole section if not using
1441 dnl one of these platforms?
1442 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1444 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1445 dnl Adjust the --with-sound help text if you change this.
1446 gnu-linux|freebsd|netbsd|mingw32)
1447 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1453 AC_SUBST(CFLAGS_SOUND)
1456 dnl checks for header files
1457 AC_CHECK_HEADERS_ONCE(
1461 sys/utsname.h pwd.h utmp.h util.h)
1463 AC_MSG_CHECKING(if personality LINUX32 can be set)
1464 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1465 emacs_cv_personality_linux32=yes,
1466 emacs_cv_personality_linux32=no)
1467 AC_MSG_RESULT($emacs_cv_personality_linux32)
1469 if test $emacs_cv_personality_linux32 = yes; then
1470 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1471 [Define to 1 if personality LINUX32 can be set.])
1474 dnl On Solaris 8 there's a compilation warning for term.h because
1475 dnl it doesn't define `bool'.
1476 AC_CHECK_HEADERS(term.h, , , -)
1478 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1480 if test $ac_cv_have_decl_sys_siglist != yes; then
1481 # For Tru64, at least:
1482 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1487 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1488 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1489 #if HAVE_SYS_SOCKET_H
1490 #include <sys/socket.h>
1492 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1493 #if HAVE_SYS_SOCKET_H
1494 #include <sys/socket.h>
1496 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1497 #if HAVE_SYS_SOCKET_H
1498 #include <sys/socket.h>
1501 dnl checks for structure members
1502 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1503 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1504 struct ifreq.ifr_addr,
1505 struct ifreq.ifr_addr.sa_len], , ,
1506 [AC_INCLUDES_DEFAULT
1507 #if HAVE_SYS_SOCKET_H
1508 #include <sys/socket.h>
1514 dnl Check for endianness.
1515 dnl AC_C_BIGENDIAN is done by gnulib.
1517 dnl check for Make feature
1522 dnl check if we have GCC and autodepend is on.
1523 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1524 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1525 SAVE_CFLAGS="$CFLAGS"
1526 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1527 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1528 CFLAGS="$SAVE_CFLAGS"
1529 test -f deps.d || ac_enable_autodepend=no
1531 AC_MSG_RESULT([$ac_enable_autodepend])
1532 if test $ac_enable_autodepend = yes; then
1533 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1534 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1535 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1536 deps_frag=autodeps.mk
1539 lwlib_deps_frag=$srcdir/lwlib/$deps_frag
1540 oldxmenu_deps_frag=$srcdir/oldXMenu/$deps_frag
1541 deps_frag=$srcdir/src/$deps_frag
1544 AC_SUBST_FILE(deps_frag)
1545 AC_SUBST_FILE(lwlib_deps_frag)
1546 AC_SUBST_FILE(oldxmenu_deps_frag)
1548 lisp_frag=$srcdir/src/lisp.mk
1549 AC_SUBST_FILE(lisp_frag)
1552 dnl checks for operating system services
1553 AC_SYS_LONG_FILE_NAMES
1555 #### Choose a window system.
1557 ## We leave window_system equal to none if
1558 ## we end up building without one. Any new window system should
1559 ## set window_system to an appropriate value and add objects to
1560 ## window-system-specific substs.
1564 if test "$no_x" != yes; then
1568 LD_SWITCH_X_SITE_RPATH=
1569 if test "${x_libraries}" != NONE; then
1570 if test -n "${x_libraries}"; then
1571 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1572 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1574 x_default_search_path=""
1575 x_search_path=${x_libraries}
1576 if test -z "${x_search_path}"; then
1577 x_search_path=/usr/lib
1579 for x_library in `echo ${x_search_path}: | \
1580 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1582 ${x_library}/X11/%L/%T/%N%C%S:\
1583 ${x_library}/X11/%l/%T/%N%C%S:\
1584 ${x_library}/X11/%T/%N%C%S:\
1585 ${x_library}/X11/%L/%T/%N%S:\
1586 ${x_library}/X11/%l/%T/%N%S:\
1587 ${x_library}/X11/%T/%N%S"
1588 if test x"${x_default_search_path}" = x; then
1589 x_default_search_path=${x_search_path}
1591 x_default_search_path="${x_search_path}:${x_default_search_path}"
1595 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1597 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1598 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1601 if test x"${x_includes}" = x; then
1602 bitmapdir=/usr/include/X11/bitmaps
1604 # accumulate include directories that have X11 bitmap subdirectories
1606 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1607 if test -d "${bmd}/X11/bitmaps"; then
1608 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1610 if test -d "${bmd}/bitmaps"; then
1611 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1614 if test ${bmd_acc} != "dummyval"; then
1615 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1622 tmp_CPPFLAGS="$CPPFLAGS"
1623 tmp_CFLAGS="$CFLAGS"
1624 CPPFLAGS="$CPPFLAGS -x objective-c"
1625 CFLAGS="$CFLAGS -x objective-c"
1628 if test "${with_ns}" != no; then
1629 if test "${opsys}" = darwin; then
1631 ns_appdir=`pwd`/nextstep/Emacs.app
1632 ns_appbindir=${ns_appdir}/Contents/MacOS
1633 ns_appresdir=${ns_appdir}/Contents/Resources
1634 ns_appsrc=Cocoa/Emacs.base
1635 elif test -f $GNUSTEP_CONFIG_FILE; then
1637 ns_appdir=`pwd`/nextstep/Emacs.app
1638 ns_appbindir=${ns_appdir}
1639 ns_appresdir=${ns_appdir}/Resources
1640 ns_appsrc=GNUstep/Emacs.base
1641 dnl FIXME sourcing this several times in subshells seems inefficient.
1642 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1643 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1644 dnl I seemed to need these as well with GNUstep-startup 0.25.
1645 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1646 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1647 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1648 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1649 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1650 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1651 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1652 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1653 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1654 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1655 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1656 dnl If they had chosen to either define it or not, we could have
1657 dnl just used AC_CHECK_DECL here.
1658 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1659 emacs_cv_objc_exceptions,
1660 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1661 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1665 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1666 if test $emacs_cv_objc_exceptions = yes; then
1667 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1668 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1669 [Define if GNUstep uses ObjC exceptions.])
1670 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1674 dnl This is only used while we test the NS headers, it gets reset below.
1675 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1677 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1678 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1679 files are missing or cannot be compiled.])])
1682 if test "${NS_IMPL_COCOA}" = "yes"; then
1683 AC_MSG_CHECKING([for OSX 10.4 or newer])
1684 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1686 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1687 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
1690 error "OSX 10.4 or newer required";
1694 ns_osx_have_104=yes,
1696 AC_MSG_RESULT([$ns_osx_have_104])
1698 if test $ns_osx_have_104 = no; then
1699 AC_MSG_ERROR([`OSX 10.4 or newer is required']);
1701 AC_MSG_CHECKING([for OSX 10.5 or newer])
1702 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1704 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1705 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1050
1708 error "OSX 10.5 not found";
1712 ns_osx_have_105=yes,
1714 AC_MSG_RESULT([$ns_osx_have_105])
1715 if test $ns_osx_have_105 = yes; then
1716 macfont_file="macfont.o"
1719 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1721 ns_have_nsinteger=yes,
1722 ns_have_nsinteger=no)
1723 if test $ns_have_nsinteger = yes; then
1724 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1728 AC_SUBST(LIBS_GNUSTEP)
1730 INSTALL_ARCH_INDEP_EXTRA=install-etc
1731 ns_self_contained=no
1734 if test "${HAVE_NS}" = yes; then
1735 if test "$with_toolkit_scroll_bars" = "no"; then
1736 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1739 window_system=nextstep
1740 # set up packaging dirs
1741 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1742 ns_self_contained=yes
1743 prefix=${ns_appresdir}
1744 exec_prefix=${ns_appbindir}
1745 dnl This one isn't really used, only archlibdir is.
1746 libexecdir="\${ns_appbindir}/libexec"
1747 archlibdir="\${ns_appbindir}/libexec"
1748 etcdocdir="\${ns_appresdir}/etc"
1749 etcdir="\${ns_appresdir}/etc"
1750 dnl FIXME maybe set datarootdir instead.
1751 dnl That would also get applications, icons, man.
1752 infodir="\${ns_appresdir}/info"
1753 mandir="\${ns_appresdir}/man"
1754 lispdir="\${ns_appresdir}/lisp"
1755 INSTALL_ARCH_INDEP_EXTRA=
1758 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o $macfont_file"
1760 CFLAGS="$tmp_CFLAGS"
1761 CPPFLAGS="$tmp_CPPFLAGS"
1762 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1763 AC_SUBST(ns_self_contained)
1765 AC_SUBST(NS_OBJC_OBJ)
1776 if test "${with_w32}" != no; then
1779 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1780 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1781 cannot be found.])])
1784 ## Using --with-w32 with MinGW is a no-op, but we allow it.
1787 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
1792 if test "${opsys}" = "mingw32"; then
1793 AC_MSG_CHECKING([whether Windows API headers are recent enough])
1794 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1795 #include <windows.h>
1796 #include <usp10.h>]],
1797 [[PIMAGE_NT_HEADERS pHeader;
1798 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
1799 [emacs_cv_w32api=yes
1802 AC_MSG_RESULT($emacs_cv_w32api)
1803 if test "${emacs_cv_w32api}" = "no"; then
1804 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
1815 if test "${HAVE_W32}" = "yes"; then
1816 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1817 AC_CHECK_TOOL(WINDRES, [windres],
1818 [AC_MSG_ERROR([No resource compiler found.])])
1819 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1820 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1821 EMACSRES="emacs.res"
1822 case "$canonical" in
1823 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
1824 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
1826 if test "${opsys}" = "cygwin"; then
1827 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1828 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1829 # Tell the linker that emacs.res is an object (which we compile from
1830 # the rc file), not a linker script.
1831 W32_RES_LINK="-Wl,emacs.res"
1833 UPDATE_MANIFEST=update-game-score.exe.manifest
1834 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
1835 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
1836 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
1837 W32_RES_LINK="\$(EMACSRES)"
1838 CLIENTRES="emacsclient.res"
1839 CLIENTW="emacsclientw\$(EXEEXT)"
1840 FIRSTFILE_OBJ=firstfile.o
1843 LIBS_ECLIENT="-lcomctl32"
1844 LIB_WSOCK32="-lwsock32"
1845 NTLIB="ntlib.$ac_objext"
1846 XARGS_LIMIT="-s 10000"
1852 AC_SUBST(EMACS_MANIFEST)
1853 AC_SUBST(UPDATE_MANIFEST)
1856 AC_SUBST(W32_RES_LINK)
1857 AC_SUBST(FIRSTFILE_OBJ)
1860 AC_SUBST(LIBS_ECLIENT)
1861 AC_SUBST(LIB_WSOCK32)
1863 AC_SUBST(XARGS_LIMIT)
1865 if test "${HAVE_W32}" = "yes"; then
1870 ## $window_system is now set to the window system we will
1873 if test "$window_system" = none && test "$gl_gcc_warnings" = yes; then
1874 # Too many warnings for now.
1876 nw="$nw -Wsuggest-attribute=const"
1877 nw="$nw -Wsuggest-attribute=noreturn"
1878 gl_MANYWARN_COMPLEMENT([WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
1880 gl_WARN_ADD([-Wno-unused-variable])
1881 gl_WARN_ADD([-Wno-unused-but-set-variable])
1882 gl_WARN_ADD([-Wno-unused-but-set-parameter])
1890 case "${window_system}" in
1895 case "${with_x_toolkit}" in
1896 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1897 motif ) USE_X_TOOLKIT=MOTIF ;;
1899 term_header=gtkutil.h
1900 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1901 dnl USE_X_TOOLKIT is set.
1902 USE_X_TOOLKIT=none ;;
1903 gtk2 ) with_gtk2=yes
1904 term_header=gtkutil.h
1905 USE_X_TOOLKIT=none ;;
1906 gtk3 ) with_gtk3=yes
1907 term_header=gtkutil.h
1908 USE_X_TOOLKIT=none ;;
1909 no ) USE_X_TOOLKIT=none ;;
1910 dnl If user did not say whether to use a toolkit, make this decision later:
1911 dnl use the toolkit if we have gtk, or X11R5 or newer.
1912 * ) USE_X_TOOLKIT=maybe ;;
1916 term_header=nsterm.h
1919 term_header=w32term.h
1923 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1924 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1925 if test "$HAVE_XSERVER" = true ||
1926 test -n "$DISPLAY" ||
1927 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1928 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1929 were found. You should install the relevant development files for X
1930 and for the toolkit you want, such as Gtk+ or Motif. Also make
1931 sure you have development files for image handling, i.e.
1932 tiff, gif, jpeg, png and xpm.
1933 If you are sure you want Emacs compiled without X window support, pass
1939 # Does the opsystem file prohibit the use of the GNU malloc?
1940 # Assume not, until told otherwise.
1944 [whether malloc is Doug Lea style],
1945 [emacs_cv_var_doug_lea_malloc],
1946 [emacs_cv_var_doug_lea_malloc=no
1947 dnl Hooks do not work with address sanitization.
1948 if test "$emacs_cv_sanitize_address" != yes; then
1951 [[#include <malloc.h>
1952 static void hook (void) {}]],
1953 [[malloc_set_state (malloc_get_state ());
1954 __after_morecore_hook = hook;
1955 __malloc_initialize_hook = hook;]])],
1956 [emacs_cv_var_doug_lea_malloc=yes])])
1958 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1960 system_malloc=$emacs_cv_sanitize_address
1962 ## darwin ld insists on the use of malloc routines in the System framework.
1963 darwin|mingw32|sol2-10) system_malloc=yes ;;
1967 if test "${system_malloc}" = "yes"; then
1968 AC_DEFINE([SYSTEM_MALLOC], 1,
1969 [Define to 1 to use the system memory allocator, even if it is not
1973 (The GNU allocators don't work with this system configuration.)"
1976 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1977 VMLIMIT_OBJ=vm-limit.o
1979 AC_CHECK_HEADERS([sys/vlimit.h])
1980 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
1983 [[extern char data_start[]; char ch;]],
1984 [[return data_start < &ch;]])],
1985 [emacs_cv_data_start=yes],
1986 [emacs_cv_data_start=no])])
1987 if test $emacs_cv_data_start = yes; then
1988 AC_DEFINE([HAVE_DATA_START], 1,
1989 [Define to 1 if data_start is the address of the start
1990 of the main data segment.])
1993 AC_SUBST(GMALLOC_OBJ)
1994 AC_SUBST(VMLIMIT_OBJ)
1996 if test "$doug_lea_malloc" = "yes" ; then
1997 if test "$GNU_MALLOC" = yes ; then
1999 (Using Doug Lea's new malloc from the GNU C Library.)"
2001 AC_DEFINE(DOUG_LEA_MALLOC, 1,
2002 [Define to 1 if the system memory allocator is Doug Lea style,
2003 with malloc hooks and malloc_set_state.])
2005 ## Use mmap directly for allocating larger buffers.
2006 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
2007 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
2008 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
2010 mingw32|gnu*) REL_ALLOC=no ;;
2014 if test x"${REL_ALLOC}" = x; then
2015 REL_ALLOC=${GNU_MALLOC}
2018 use_mmap_for_buffers=no
2020 cygwin|mingw32|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
2024 if test $use_mmap_for_buffers = yes; then
2025 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
2029 LIBS="$LIBS_SYSTEM $LIBS"
2031 dnl FIXME replace main with a function we actually want from this library.
2032 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
2034 dnl Check for the POSIX thread library.
2036 if test "$opsys" != "mingw32"; then
2037 AC_CHECK_HEADERS_ONCE(pthread.h)
2038 if test "$ac_cv_header_pthread_h"; then
2039 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
2040 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
2041 dnl testing for pthread_kill if Emacs uses gmalloc.c.
2042 if test "$GMALLOC_OBJ" = gmalloc.o; then
2043 emacs_pthread_function=pthread_atfork
2045 emacs_pthread_function=pthread_kill
2048 AC_SEARCH_LIBS([$emacs_pthread_function], [pthread],
2049 [AC_DEFINE([HAVE_PTHREAD], [1],
2050 [Define to 1 if you have pthread (-lpthread).])
2051 # Some systems optimize for single-threaded programs by default, and
2052 # need special flags to disable these optimizations. For example, the
2053 # definition of 'errno' in <errno.h>.
2056 AC_DEFINE([_REENTRANT], 1,
2057 [Define to 1 if your system requires this in multithreaded code.]);;
2059 AC_DEFINE([_THREAD_SAFE], 1,
2060 [Define to 1 if your system requires this in multithreaded code.]);;
2062 if test "X$LIBS" != "X$OLD_LIBS"; then
2063 eval LIB_PTHREAD=\$ac_cv_search_$emacs_pthread_function
2067 AC_SUBST([LIB_PTHREAD])
2070 dnl Check for need for bigtoc support on IBM AIX
2074 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
2076 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
2077 *) gdb_cv_bigtoc=-bbigtoc ;;
2080 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
2081 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
2086 # Change CFLAGS, CPPFLAGS, and LIBS temporarily so that C_SWITCH_X_SITE
2087 # is for the tests that follow. We set them back later on.
2089 REAL_CFLAGS="$CFLAGS"
2090 REAL_CPPFLAGS="$CPPFLAGS"
2093 if test "${HAVE_X11}" = "yes"; then
2094 DEFS="$C_SWITCH_X_SITE $DEFS"
2095 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2097 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2098 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2100 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2101 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2102 # but it's more convenient here to set LD_RUN_PATH since this
2103 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2104 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2105 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2109 if test "${opsys}" = "gnu-linux"; then
2110 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2111 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2112 [[XOpenDisplay ("foo");]])],
2113 [xgnu_linux_first_failure=no],
2114 [xgnu_linux_first_failure=yes])
2115 if test "${xgnu_linux_first_failure}" = "yes"; then
2116 OLD_CPPFLAGS="$CPPFLAGS"
2118 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2119 LIBS="$LIBS -b i486-linuxaout"
2120 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2121 [[XOpenDisplay ("foo");]])],
2122 [xgnu_linux_second_failure=no],
2123 [xgnu_linux_second_failure=yes])
2124 if test "${xgnu_linux_second_failure}" = "yes"; then
2125 # If we get the same failure with -b, there is no use adding -b.
2126 # So leave it out. This plays safe.
2129 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2130 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2133 CPPFLAGS=$OLD_CPPFLAGS
2140 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2141 # header files included from there.
2142 AC_MSG_CHECKING(for Xkb)
2143 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2144 #include <X11/XKBlib.h>]],
2145 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2146 emacs_xkb=yes, emacs_xkb=no)
2147 AC_MSG_RESULT($emacs_xkb)
2148 if test $emacs_xkb = yes; then
2149 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2152 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2153 XScreenNumberOfScreen)
2156 if test "${window_system}" = "x11"; then
2157 AC_MSG_CHECKING(X11 version 6)
2158 AC_CACHE_VAL(emacs_cv_x11_version_6,
2159 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2160 [[#if XlibSpecificationRelease < 6
2163 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2164 if test $emacs_cv_x11_version_6 = yes; then
2165 AC_MSG_RESULT(6 or newer)
2166 AC_DEFINE(HAVE_X11R6, 1,
2167 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2168 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2169 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2173 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2174 [Define if you have usable X11R6-style XIM support.])
2178 AC_MSG_RESULT(before 6)
2183 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
2185 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2186 if test "${with_rsvg}" != "no"; then
2187 RSVG_REQUIRED=2.11.0
2188 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2190 EMACS_CHECK_MODULES([RSVG], [$RSVG_MODULE])
2191 AC_SUBST(RSVG_CFLAGS)
2194 if test $HAVE_RSVG = yes; then
2195 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2196 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2197 # Windows loads librsvg dynamically
2198 if test "${opsys}" = "mingw32"; then
2206 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${HAVE_W32}" = "yes"; then
2207 if test "${with_imagemagick}" != "no"; then
2208 ## 6.3.5 is the earliest version known to work; see Bug#17339.
2209 ## 6.8.2 makes Emacs crash; see Bug#13867.
2210 IMAGEMAGICK_MODULE="Wand >= 6.3.5 Wand != 6.8.2"
2211 EMACS_CHECK_MODULES([IMAGEMAGICK], [$IMAGEMAGICK_MODULE])
2212 AC_SUBST(IMAGEMAGICK_CFLAGS)
2213 AC_SUBST(IMAGEMAGICK_LIBS)
2215 if test $HAVE_IMAGEMAGICK = yes; then
2216 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2219 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2220 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2221 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
2231 gtk_term_header=$term_header
2234 if test "${opsys}" != "mingw32"; then
2235 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2238 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2240 dnl Checks for libraries.
2241 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2242 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2243 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2244 AC_MSG_ERROR($GTK_PKG_ERRORS)
2246 if test "$pkg_check_gtk" = "yes"; then
2247 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2248 GTK_OBJ=emacsgtkfixed.o
2249 gtk_term_header=gtkutil.h
2250 USE_GTK_TOOLKIT="GTK3"
2251 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2252 AC_DEFINE([GDK_DISABLE_DEPRECATION_WARNINGS], [1],
2253 [Define to 1 to disable GTK+/GDK deprecation warnings.])
2254 AC_DEFINE([GLIB_DISABLE_DEPRECATION_WARNINGS], [1],
2255 [Define to 1 to disable Glib deprecation warnings.])
2259 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2263 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2266 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2268 dnl Checks for libraries.
2269 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2270 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2271 if test "$pkg_check_gtk" = "no" &&
2272 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2274 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2276 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2283 if test x"$pkg_check_gtk" = xyes; then
2286 CFLAGS="$CFLAGS $GTK_CFLAGS"
2287 LIBS="$GTK_LIBS $LIBS"
2288 dnl Try to compile a simple GTK program.
2289 AC_MSG_CHECKING([whether GTK compiles])
2293 [[/* Check the Gtk and Glib APIs. */
2294 #include <gtk/gtk.h>
2295 #include <glib-object.h>
2297 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2301 GtkSettings *gs = 0;
2302 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2303 strict C prohibits this. Use gtk_main_iteration to test that the
2304 libraries are there. */
2305 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2306 0, 0, 0, G_CALLBACK (callback), 0))
2307 gtk_main_iteration ();
2310 AC_MSG_RESULT([$GTK_COMPILES])
2311 if test "${GTK_COMPILES}" != "yes"; then
2313 if test "$USE_X_TOOLKIT" != "maybe"; then
2314 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2317 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2319 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2320 GTK_OBJ="gtkutil.o $GTK_OBJ"
2321 term_header=$gtk_term_header
2323 if "$PKG_CONFIG" --atleast-version=2.10 gtk+-2.0; then
2326 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2327 closing open displays. This is no problem if you just use
2328 one display, but if you use more than one and close one of them
2338 if test "${HAVE_GTK}" = "yes"; then
2340 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2341 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2342 if test "$with_toolkit_scroll_bars" != no; then
2343 with_toolkit_scroll_bars=yes
2346 dnl Check if we have the old file selection dialog declared and
2347 dnl in the link library. In 2.x it may be in the library,
2348 dnl but not declared if deprecated featured has been selected out.
2349 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2350 HAVE_GTK_FILE_SELECTION=no
2351 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2352 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2353 #include <gtk/gtk.h>])
2354 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2355 AC_CHECK_FUNCS(gtk_file_selection_new)
2358 dnl Same as above for gtk_handle_box.
2359 HAVE_GTK_HANDLE_BOX=no
2360 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2361 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2362 #include <gtk/gtk.h>])
2363 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2364 AC_CHECK_FUNCS(gtk_handle_box_new)
2367 dnl Same as above for gtk_tearoff_menu_item.
2368 HAVE_GTK_TEAROFF_MENU_ITEM=no
2369 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2370 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2371 #include <gtk/gtk.h>])
2372 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2373 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2376 dnl Check for functions introduced in 2.14 and later.
2377 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2378 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2379 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2380 gtk_orientable_set_orientation \
2381 gtk_window_set_has_resize_grip)
2383 term_header=gtkutil.h
2389 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2390 dnl other platforms.
2393 if test "${with_dbus}" = "yes"; then
2394 EMACS_CHECK_MODULES([DBUS], [dbus-1 >= 1.0])
2395 if test "$HAVE_DBUS" = yes; then
2396 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2397 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2398 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2401 LIBS="$LIBS $DBUS_LIBS"
2402 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2403 dbus_type_is_valid \
2404 dbus_validate_bus_name \
2405 dbus_validate_path \
2406 dbus_validate_interface \
2407 dbus_validate_member)
2412 AC_SUBST(DBUS_CFLAGS)
2416 dnl GSettings has been tested under GNU/Linux only.
2418 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2419 EMACS_CHECK_MODULES([GSETTINGS], [gio-2.0 >= 2.26])
2420 if test "$HAVE_GSETTINGS" = "yes"; then
2422 CFLAGS="$CFLAGS $GSETTINGS_CFLAGS"
2424 LIBS="$LIBS $GSETTINGS_LIBS"
2425 AC_MSG_CHECKING([whether GSettings is in gio])
2428 [[/* Check that gsettings really is present. */
2429 #include <glib-object.h>
2430 #include <gio/gio.h>
2433 GSettings *settings;
2434 GVariant *val = g_settings_get_value (settings, "");
2436 [], HAVE_GSETTINGS=no)
2437 AC_MSG_RESULT([$HAVE_GSETTINGS])
2439 if test "$HAVE_GSETTINGS" = "yes"; then
2440 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2441 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2442 SETTINGS_LIBS="$GSETTINGS_LIBS"
2449 dnl GConf has been tested under GNU/Linux only.
2450 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2452 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2453 EMACS_CHECK_MODULES([GCONF], [gconf-2.0 >= 2.13])
2454 if test "$HAVE_GCONF" = yes; then
2455 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2456 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2457 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2458 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2462 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2463 EMACS_CHECK_MODULES([GOBJECT], [gobject-2.0 >= 2.0])
2464 if test "$HAVE_GOBJECT" = "yes"; then
2465 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2466 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2468 SAVE_CFLAGS="$CFLAGS"
2470 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2471 LIBS="$SETTINGS_LIBS $LIBS"
2472 CFLAGS="$SAVE_CFLAGS"
2475 AC_SUBST(SETTINGS_CFLAGS)
2476 AC_SUBST(SETTINGS_LIBS)
2479 dnl SELinux is available for GNU/Linux only.
2482 if test "${with_selinux}" = "yes"; then
2483 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2484 if test "$HAVE_LIBSELINUX" = yes; then
2485 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2486 LIBSELINUX_LIBS=-lselinux
2489 AC_SUBST(LIBSELINUX_LIBS)
2493 if test "${with_gnutls}" = "yes" ; then
2494 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 3.0.0],
2495 [HAVE_GNUTLS3=yes], [HAVE_GNUTLS3=no])
2496 if test "${HAVE_GNUTLS3}" = "yes"; then
2497 AC_DEFINE(HAVE_GNUTLS3, 1, [Define if using GnuTLS v3.])
2500 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6],
2501 [HAVE_GNUTLS=yes], [HAVE_GNUTLS=no])
2503 if test "${HAVE_GNUTLS}" = "yes"; then
2504 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2507 # Windows loads GnuTLS dynamically
2508 if test "${opsys}" = "mingw32"; then
2513 AC_SUBST(LIBGNUTLS_LIBS)
2514 AC_SUBST(LIBGNUTLS_CFLAGS)
2519 dnl FIXME? Don't auto-detect on NS, but do allow someone to specify
2520 dnl a particular library. This doesn't make much sense?
2521 if test "${with_ns}" = yes && test ${with_file_notification} = yes; then
2522 with_file_notification=no
2525 dnl MS Windows native file monitor is available for mingw32 only.
2526 case $with_file_notification,$opsys in
2527 w32,* | yes,mingw32)
2528 AC_CHECK_HEADER(windows.h)
2529 if test "$ac_cv_header_windows_h" = yes ; then
2530 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2531 NOTIFY_OBJ=w32notify.o
2532 NOTIFY_SUMMARY="yes (w32)"
2536 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2537 dnl has been added in glib 2.24. It has been tested under
2538 dnl GNU/Linux only. We take precedence over inotify, but this makes
2539 dnl only sense when glib has been compiled with inotify support. How
2541 case $with_file_notification,$NOTIFY_OBJ in
2543 EMACS_CHECK_MODULES([GFILENOTIFY], [gio-2.0 >= 2.24])
2544 if test "$HAVE_GFILENOTIFY" = "yes"; then
2545 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2546 NOTIFY_OBJ=gfilenotify.o
2547 NOTIFY_SUMMARY="yes -lgio (gfile)"
2551 dnl inotify is only available on GNU/Linux.
2552 case $with_file_notification,$NOTIFY_OBJ in
2554 AC_CHECK_HEADER(sys/inotify.h)
2555 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2556 AC_CHECK_FUNC(inotify_init1)
2557 if test "$ac_cv_func_inotify_init1" = yes; then
2558 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2559 NOTIFY_OBJ=inotify.o
2560 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2565 case $with_file_notification,$NOTIFY_OBJ in
2566 yes,* | no,* | *,?*) ;;
2567 *) AC_MSG_ERROR([File notification `$with_file_notification' requested but requirements not found.]) ;;
2570 if test -n "$NOTIFY_OBJ"; then
2571 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2573 AC_SUBST(NOTIFY_OBJ)
2574 AC_SUBST(GFILENOTIFY_CFLAGS)
2575 AC_SUBST(GFILENOTIFY_LIBS)
2577 dnl Do not put whitespace before the #include statements below.
2578 dnl Older compilers (eg sunos4 cc) choke on it.
2581 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2582 if test "$with_xaw3d" != no; then
2583 AC_CACHE_VAL(emacs_cv_xaw3d,
2584 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2585 #include <X11/Intrinsic.h>
2586 #include <X11/Xaw3d/Simple.h>]],
2588 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2589 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2590 emacs_cv_xaw3d=no)])
2594 if test $emacs_cv_xaw3d = yes; then
2595 AC_MSG_CHECKING(for xaw3d)
2596 AC_MSG_RESULT([yes; using Lucid toolkit])
2600 AC_DEFINE(HAVE_XAW3D, 1,
2601 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2603 AC_MSG_CHECKING(for xaw3d)
2605 AC_MSG_CHECKING(for libXaw)
2606 AC_CACHE_VAL(emacs_cv_xaw,
2607 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2608 #include <X11/Intrinsic.h>
2609 #include <X11/Xaw/Simple.h>]],
2613 if test $emacs_cv_xaw = yes; then
2614 AC_MSG_RESULT([yes; using Lucid toolkit])
2617 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2618 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2620 AC_MSG_ERROR([No X toolkit could be found.
2621 If you are sure you want Emacs compiled without an X toolkit, pass
2623 to configure. Otherwise, install the development libraries for the toolkit
2624 that you want to use (e.g. Gtk+) and re-run configure.])
2629 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2633 if test "${USE_X_TOOLKIT}" != "none"; then
2634 AC_MSG_CHECKING(X11 toolkit version)
2635 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2636 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2637 [[#if XtSpecificationRelease < 6
2640 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2641 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2642 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2643 AC_MSG_RESULT(6 or newer)
2644 AC_DEFINE(HAVE_X11XTR6, 1,
2645 [Define to 1 if you have the X11R6 or newer version of Xt.])
2646 LIBXTR6="-lSM -lICE"
2648 ## Use libw.a along with X11R6 Xt.
2649 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2652 AC_MSG_RESULT(before 6)
2655 dnl If using toolkit, check whether libXmu.a exists.
2656 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2658 if test x$HAVE_X11XTR6 = xyes; then
2659 OTHERLIBS='-lXt -lSM -lICE'
2663 AC_SEARCH_LIBS([XmuConvertStandardSelection], [Xmu], [], [], [$OTHERLIBS])
2664 if test "X$LIBS" != "X$OLDLIBS"; then
2665 LIBXMU=$ac_cv_search_XmuConvertStandardSelection
2668 dnl ac_cv_search_XmuConvertStandardSelection is also referenced below.
2674 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2675 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2676 if test -d /usr/include/openmotif; then
2677 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2678 emacs_cv_openmotif=yes
2679 case "$canonical" in
2680 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2681 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2684 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2687 emacs_cv_openmotif=no
2689 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2690 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2691 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2694 Motif version prior to 2.1.
2696 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2697 if test $emacs_cv_motif_version_2_1 = yes; then
2698 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2699 if test x$emacs_cv_openmotif = xyes; then
2700 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2703 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2704 # We put this in CFLAGS temporarily to precede other -I options
2705 # that might be in CFLAGS temporarily.
2706 # We put this in CPPFLAGS where it precedes the other -I options.
2707 OLD_CPPFLAGS=$CPPFLAGS
2709 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2710 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2711 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2713 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2714 if test $emacs_cv_lesstif = yes; then
2715 # Make sure this -I option remains in CPPFLAGS after it is set
2716 # back to REAL_CPPFLAGS.
2717 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2718 # have those other -I options anyway. Ultimately, having this
2719 # directory ultimately in CPPFLAGS will be enough.
2720 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2721 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2724 CPPFLAGS=$OLD_CPPFLAGS
2727 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2728 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2731 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2732 dnl using Motif or Xaw3d is available, and unless
2733 dnl --with-toolkit-scroll-bars=no was specified.
2735 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2736 [Define to 1 if we should use toolkit scroll bars.])dnl
2737 USE_TOOLKIT_SCROLL_BARS=no
2738 if test "${with_toolkit_scroll_bars}" != "no"; then
2739 if test "${USE_X_TOOLKIT}" != "none"; then
2740 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2741 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2743 USE_TOOLKIT_SCROLL_BARS=yes
2744 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2745 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2746 USE_TOOLKIT_SCROLL_BARS=yes
2748 elif test "${HAVE_GTK}" = "yes"; then
2749 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2750 USE_TOOLKIT_SCROLL_BARS=yes
2751 elif test "${HAVE_NS}" = "yes"; then
2752 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2753 USE_TOOLKIT_SCROLL_BARS=yes
2754 elif test "${HAVE_W32}" = "yes"; then
2755 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2756 USE_TOOLKIT_SCROLL_BARS=yes
2760 dnl See if XIM is available.
2761 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2762 #include <X11/Xlib.h>
2763 #include <X11/Xresource.h>]],
2764 [[XIMProc callback;]])],
2766 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2769 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2771 if test "${with_xim}" != "no"; then
2772 AC_DEFINE(USE_XIM, 1,
2773 [Define to 1 if we should use XIM, if it is available.])
2777 if test "${HAVE_XIM}" != "no"; then
2779 if test "$GCC" = yes; then
2780 CFLAGS="$CFLAGS --pedantic-errors"
2782 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2783 #include <X11/Xlib.h>
2784 #include <X11/Xresource.h>]],
2790 XPointer *client_data;
2792 /* If we're not using GCC, it's probably not XFree86, and this is
2793 probably right, but we can't use something like --pedantic-errors. */
2794 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2795 char*, XIMProc, XPointer*);
2797 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2799 [emacs_cv_arg6_star=yes])
2800 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2801 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2802 either XPointer or XPointer*.])dnl
2803 if test "$emacs_cv_arg6_star" = yes; then
2804 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2806 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2811 ### Start of font-backend (under any platform) section.
2812 # (nothing here yet -- this is a placeholder)
2813 ### End of font-backend (under any platform) section.
2815 ### Start of font-backend (under X11) section.
2816 if test "${HAVE_X11}" = "yes"; then
2817 ## Use -lXft if available, unless `--with-xft=no'.
2819 if test "x${with_x}" = "xno"; then
2823 if test "$with_xft" != no; then
2824 EMACS_CHECK_MODULES([FONTCONFIG], [fontconfig >= 2.2.0])
2825 with_xft=$HAVE_FONTCONFIG
2828 if test "x${with_xft}" != "xno"; then
2830 EMACS_CHECK_MODULES([XFT], [xft >= 0.13.0], [], [HAVE_XFT=no])
2831 ## Because xftfont.c uses XRenderQueryExtension, we also
2832 ## need to link to -lXrender.
2834 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2835 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2836 OLD_CPPFLAGS="$CPPFLAGS"
2837 OLD_CFLAGS="$CFLAGS"
2839 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2840 CFLAGS="$CFLAGS $XFT_CFLAGS"
2841 XFT_LIBS="-lXrender $XFT_LIBS"
2842 LIBS="$XFT_LIBS $LIBS"
2843 AC_CHECK_HEADER(X11/Xft/Xft.h,
2844 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
2845 [[#include <X11/X.h>]])
2847 if test "${HAVE_XFT}" = "yes"; then
2848 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2850 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2851 fi # "${HAVE_XFT}" = "yes"
2852 CPPFLAGS=$OLD_CPPFLAGS
2855 fi # "$HAVE_XFT" != no
2856 fi # "x${with_xft}" != "xno"
2858 ## We used to allow building with FreeType and without Xft.
2859 ## However, the ftx font backend driver is not in good shape.
2860 if test "$HAVE_XFT" != "yes"; then
2861 dnl For the "Does Emacs use" message at the end.
2865 dnl Strict linkers fail with
2866 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2867 dnl if -lfreetype is not specified.
2868 dnl The following is needed to set FREETYPE_LIBS.
2869 EMACS_CHECK_MODULES([FREETYPE], [freetype2])
2871 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2875 if test "${HAVE_FREETYPE}" = "yes"; then
2876 AC_DEFINE(HAVE_FREETYPE, 1,
2877 [Define to 1 if using the freetype and fontconfig libraries.])
2878 if test "${with_libotf}" != "no"; then
2879 EMACS_CHECK_MODULES([LIBOTF], [libotf])
2880 if test "$HAVE_LIBOTF" = "yes"; then
2881 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2882 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2883 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2884 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2885 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2886 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2887 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2891 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2892 dnl Does the new font backend require it, or can it work without it?
2896 if test "${HAVE_LIBOTF}" = yes; then
2897 if test "${with_m17n_flt}" != "no"; then
2898 EMACS_CHECK_MODULES([M17N_FLT], [m17n-flt])
2899 if test "$HAVE_M17N_FLT" = "yes"; then
2900 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2911 ### End of font-backend (under X11) section.
2913 AC_SUBST(FREETYPE_CFLAGS)
2914 AC_SUBST(FREETYPE_LIBS)
2915 AC_SUBST(FONTCONFIG_CFLAGS)
2916 AC_SUBST(FONTCONFIG_LIBS)
2917 AC_SUBST(LIBOTF_CFLAGS)
2918 AC_SUBST(LIBOTF_LIBS)
2919 AC_SUBST(M17N_FLT_CFLAGS)
2920 AC_SUBST(M17N_FLT_LIBS)
2922 ### Use -lXpm if available, unless `--with-xpm=no'.
2923 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
2926 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
2927 if test "${with_xpm}" != "no"; then
2928 SAVE_CPPFLAGS="$CPPFLAGS"
2929 SAVE_LDFLAGS="$LDFLAGS"
2930 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
2931 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
2932 AC_CHECK_HEADER(X11/xpm.h,
2933 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
2934 if test "${HAVE_XPM}" = "yes"; then
2935 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2936 AC_EGREP_CPP(no_return_alloc_pixels,
2937 [#include "X11/xpm.h"
2938 #ifndef XpmReturnAllocPixels
2939 no_return_alloc_pixels
2941 ], HAVE_XPM=no, HAVE_XPM=yes)
2943 if test "${HAVE_XPM}" = "yes"; then
2944 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
2948 CPPFLAGS="$SAVE_CPPFLAGS"
2949 LDFLAGS="$SAVE_LDFLAGS"
2954 if test "${HAVE_XPM}" = "yes"; then
2955 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2960 if test "${HAVE_X11}" = "yes"; then
2961 dnl Avoid Xpm on AIX unless requested, as it crashes; see Bug#17598.
2962 test "$opsys$with_xpm_set" = aix4-2 && with_xpm=no
2964 if test "${with_xpm}" != "no"; then
2965 AC_CHECK_HEADER(X11/xpm.h,
2966 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2967 if test "${HAVE_XPM}" = "yes"; then
2968 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2969 AC_EGREP_CPP(no_return_alloc_pixels,
2970 [#include "X11/xpm.h"
2971 #ifndef XpmReturnAllocPixels
2972 no_return_alloc_pixels
2974 ], HAVE_XPM=no, HAVE_XPM=yes)
2976 if test "${HAVE_XPM}" = "yes"; then
2984 if test "${HAVE_XPM}" = "yes"; then
2985 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2987 elif test "$opsys,$LUCID_LIBW" = aix4-2,-lXaw; then
2988 dnl AIX -lXaw needs -lXpm linked too; see Bug#17598 Message#152.
2993 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
2994 ### slightly different requirements wrt image libraries (it doesn't
2995 ### use -lXpm because it loads the xpm shared library dynamically at
2997 if test "${opsys}" = "mingw32"; then
2998 if test "${with_xpm}" != "no"; then
2999 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
3003 if test "${HAVE_XPM}" = "yes"; then
3004 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3010 ### Use -ljpeg if available, unless `--with-jpeg=no'.
3011 ### mingw32 doesn't use -ljpeg, since it loads the library dynamically.
3014 if test "${opsys}" = "mingw32"; then
3015 if test "${with_jpeg}" != "no"; then
3016 dnl Checking for jpeglib.h can lose because of a redefinition of
3018 AC_CHECK_HEADER(jerror.h, HAVE_JPEG=yes, HAVE_JPEG=no)
3020 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
3021 if test "${HAVE_JPEG}" = "yes"; then
3022 AC_DEFINE(HAVE_JPEG)
3023 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
3024 [#include <jpeglib.h>
3025 version=JPEG_LIB_VERSION
3027 [AC_DEFINE(HAVE_JPEG)],
3028 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
3031 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3032 if test "${with_jpeg}" != "no"; then
3033 dnl Checking for jpeglib.h can lose because of a redefinition of
3035 AC_CHECK_HEADER(jerror.h,
3036 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
3039 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
3040 if test "${HAVE_JPEG}" = "yes"; then
3041 AC_DEFINE(HAVE_JPEG)
3042 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
3043 [#include <jpeglib.h>
3044 version=JPEG_LIB_VERSION
3046 [AC_DEFINE(HAVE_JPEG)],
3047 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
3050 if test "${HAVE_JPEG}" = "yes"; then
3058 if test "${with_zlib}" != "no"; then
3060 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
3062 case $ac_cv_search_inflateEnd in
3063 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3066 if test "${HAVE_ZLIB}" = "yes"; then
3067 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3068 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3069 if test "${opsys}" = "mingw32"; then
3075 ### Use -lpng if available, unless `--with-png=no'.
3079 if test "${NS_IMPL_COCOA}" = yes; then
3081 elif test "${with_png}" != no; then
3082 # mingw32 loads the library dynamically.
3083 if test "$opsys" = mingw32; then
3084 AC_CHECK_HEADER([png.h], [HAVE_PNG=yes])
3085 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3086 AC_MSG_CHECKING([for png])
3087 png_cflags=`(libpng-config --cflags) 2>&AS_MESSAGE_LOG_FD` &&
3088 png_libs=`(libpng-config --libs) 2>&AS_MESSAGE_LOG_FD` || {
3089 # libpng-config does not work; configure by hand.
3090 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
3091 # in /usr/include/libpng.
3092 if test -r /usr/include/libpng/png.h &&
3093 test ! -r /usr/include/png.h; then
3094 png_cflags=-I/usr/include/libpng
3102 CFLAGS="$CFLAGS $png_cflags"
3103 LIBS="$png_libs -lz -lm $LIBS"
3105 [AC_LANG_PROGRAM([[#include <png.h>]],
3106 [[return !png_get_channels (0, 0);]])],
3108 PNG_CFLAGS=`AS_ECHO(["$png_cflags"]) | sed -e "$edit_cflags"`
3110 # $LIBPNG requires explicit -lz in some cases.
3111 # We don't know what those cases are, exactly, so play it safe and
3112 # append -lz to any nonempty $LIBPNG, unless we're already using LIBZ.
3113 if test -n "$LIBPNG" && test -z "$LIBZ"; then
3114 LIBPNG="$LIBPNG -lz"
3118 AC_MSG_RESULT([$HAVE_PNG])
3121 if test $HAVE_PNG = yes; then
3122 AC_DEFINE([HAVE_PNG], [1], [Define to 1 if you have the png library.])
3125 CFLAGS="$CFLAGS $PNG_CFLAGS"
3126 AC_CHECK_DECL([png_longjmp],
3128 [AC_DEFINE([PNG_DEPSTRUCT], [],
3129 [Define to empty to suppress deprecation warnings when building
3130 with --enable-gcc-warnings and with libpng versions before 1.5,
3131 which lack png_longjmp.])],
3137 AC_SUBST(PNG_CFLAGS)
3139 ### Use -ltiff if available, unless `--with-tiff=no'.
3140 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3143 if test "${opsys}" = "mingw32"; then
3144 if test "${with_tiff}" != "no"; then
3145 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3147 if test "${HAVE_TIFF}" = "yes"; then
3148 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3150 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3151 if test "${with_tiff}" != "no"; then
3152 AC_CHECK_HEADER(tiffio.h,
3154 # At least one tiff package requires the jpeg library.
3155 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3156 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3159 if test "${HAVE_TIFF}" = "yes"; then
3160 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3161 dnl FIXME -lz -lm, as per libpng?
3167 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
3168 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3171 if test "${opsys}" = "mingw32"; then
3172 if test "${with_gif}" != "no"; then
3173 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3175 if test "${HAVE_GIF}" = "yes"; then
3176 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3178 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3179 || test "${HAVE_W32}" = "yes"; then
3180 AC_CHECK_HEADER(gif_lib.h,
3181 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3182 # Earlier versions can crash Emacs, but version 5.0 removes EGifPutExtensionLast.
3183 [AC_CHECK_LIB(gif, GifMakeMapObject, HAVE_GIF=yes,
3184 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])])
3186 if test "$HAVE_GIF" = yes; then
3188 elif test "$HAVE_GIF" = maybe; then
3189 # If gif_lib.h but no libgif, try libungif.
3190 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3191 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3194 if test "${HAVE_GIF}" = "yes"; then
3195 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3200 dnl Check for required libraries.
3201 if test "${HAVE_X11}" = "yes"; then
3204 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3205 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3206 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3207 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3208 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3209 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3210 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3211 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3212 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3213 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3215 if test "X${MISSING}" != X; then
3216 AC_MSG_ERROR([The following required libraries were not found:
3218 Maybe some development libraries/packages are missing?
3219 If you don't want to link with them give
3221 as options to configure])
3225 ### Use -lgpm if available, unless `--with-gpm=no'.
3228 if test "${with_gpm}" != "no"; then
3229 AC_CHECK_HEADER(gpm.h,
3230 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3232 if test "${HAVE_GPM}" = "yes"; then
3233 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3239 dnl Check for malloc/malloc.h on darwin
3240 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3243 ### Use NeXTstep API to implement GUI.
3244 if test "${HAVE_NS}" = "yes"; then
3245 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
3246 if test "${NS_IMPL_COCOA}" = "yes"; then
3247 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
3249 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3250 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3251 # See also .m.o rule in Makefile.in */
3252 # FIXME: are all these flags really needed? Document here why. */
3253 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3254 ## Extra CFLAGS applied to src/*.m files.
3255 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3260 ### Use session management (-lSM -lICE) if available
3263 if test "${HAVE_X11}" = "yes"; then
3264 AC_CHECK_HEADER(X11/SM/SMlib.h,
3265 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3267 if test "${HAVE_X_SM}" = "yes"; then
3268 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3274 ### Use XRandr (-lXrandr) if available
3276 if test "${HAVE_X11}" = "yes"; then
3277 XRANDR_REQUIRED=1.2.2
3278 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3279 EMACS_CHECK_MODULES([XRANDR], [$XRANDR_MODULES])
3280 if test $HAVE_XRANDR = no; then
3281 # Test old way in case pkg-config doesn't have it (older machines).
3282 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3283 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)])
3284 if test $HAVE_XRANDR = yes; then
3285 XRANDR_LIBS=-lXrandr
3288 if test $HAVE_XRANDR = yes; then
3289 SAVE_CFLAGS="$CFLAGS"
3291 CFLAGS="$XRANDR_CFLAGS $CFLAGS"
3292 LIBS="$XRANDR_LIBS $LIBS"
3293 AC_CHECK_FUNCS(XRRGetOutputPrimary XRRGetScreenResourcesCurrent)
3294 CFLAGS="$SAVE_CFLAGS"
3297 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3300 AC_SUBST(XRANDR_CFLAGS)
3301 AC_SUBST(XRANDR_LIBS)
3303 ### Use Xinerama (-lXinerama) if available
3305 if test "${HAVE_X11}" = "yes"; then
3306 XINERAMA_REQUIRED=1.0.2
3307 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3308 EMACS_CHECK_MODULES([XINERAMA], [$XINERAMA_MODULES])
3309 if test $HAVE_XINERAMA = no; then
3310 # Test old way in case pkg-config doesn't have it (older machines).
3311 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3312 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3313 if test $HAVE_XINERAMA = yes; then
3314 XINERAMA_LIBS=-lXinerama
3317 if test $HAVE_XINERAMA = yes; then
3318 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3321 AC_SUBST(XINERAMA_CFLAGS)
3322 AC_SUBST(XINERAMA_LIBS)
3324 ### Use Xfixes (-lXfixes) if available
3326 if test "${HAVE_X11}" = "yes"; then
3327 XFIXES_REQUIRED=4.0.0
3328 XFIXES_MODULES="xfixes >= $XFIXES_REQUIRED"
3329 EMACS_CHECK_MODULES([XFIXES], [$XFIXES_MODULES])
3330 if test $HAVE_XFIXES = no; then
3331 # Test old way in case pkg-config doesn't have it (older machines).
3332 AC_CHECK_HEADER(X11/extensions/Xfixes.h,
3333 [AC_CHECK_LIB(Xfixes, XFixesHideCursor, HAVE_XFIXES=yes)])
3334 if test $HAVE_XFIXES = yes; then
3335 XFIXES_LIBS=-lXfixes
3338 if test $HAVE_XFIXES = yes; then
3339 AC_DEFINE(HAVE_XFIXES, 1, [Define to 1 if you have the Xfixes extension.])
3342 AC_SUBST(XFIXES_CFLAGS)
3343 AC_SUBST(XFIXES_LIBS)
3345 ### Use libxml (-lxml2) if available
3346 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3348 if test "${with_xml2}" != "no"; then
3349 ### I'm not sure what the version number should be, so I just guessed.
3350 EMACS_CHECK_MODULES([LIBXML2], [libxml-2.0 > 2.6.17])
3351 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3352 if test "${HAVE_LIBXML2}" != "yes" -a "$opsys" = "darwin"; then
3353 SAVE_CPPFLAGS="$CPPFLAGS"
3354 CPPFLAGS="$CPPFLAGS -I$xcsdkdir/usr/include/libxml2"
3355 AC_CHECK_HEADER(libxml/HTMLparser.h,
3356 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3357 [#include <libxml/HTMLparser.h>])])
3358 CPPFLAGS="$SAVE_CPPFLAGS"
3359 if test "${HAVE_LIBXML2}" = "yes"; then
3360 LIBXML2_CFLAGS="-I'$xcsdkdir/usr/include/libxml2'"
3361 LIBXML2_LIBS="-lxml2"
3364 if test "${HAVE_LIBXML2}" = "yes"; then
3365 if test "${opsys}" != "mingw32"; then
3366 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no
3371 if test "${HAVE_LIBXML2}" = "yes"; then
3372 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3379 AC_SUBST(LIBXML2_LIBS)
3380 AC_SUBST(LIBXML2_CFLAGS)
3382 # If netdb.h doesn't declare h_errno, we must declare it by hand.
3383 # On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
3384 if test "${opsys}" = "mingw32"; then
3385 emacs_cv_netdb_declares_h_errno=yes
3387 AC_CACHE_CHECK(whether netdb declares h_errno,
3388 emacs_cv_netdb_declares_h_errno,
3389 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
3390 [[return h_errno;]])],
3391 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
3392 if test $emacs_cv_netdb_declares_h_errno = yes; then
3393 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
3396 # Check for mail-locking functions in a "mail" library. Probably this should
3397 # have the same check as for liblockfile below.
3398 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
3399 if test $have_mail = yes; then
3401 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
3404 LIBS="$LIBS_MAIL $LIBS"
3405 AC_CHECK_FUNCS(touchlock)
3410 dnl Debian, at least:
3411 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
3412 if test $have_lockfile = yes; then
3413 LIBS_MAIL=-llockfile
3414 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
3416 # If we have the shared liblockfile, assume we must use it for mail
3417 # locking (e.g. Debian). If we couldn't link against liblockfile
3418 # (no liblockfile.a installed), ensure that we don't need to.
3419 dnl This works for files generally, not just executables.
3420 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3421 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
3422 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
3423 if test $ac_cv_prog_liblockfile = yes; then
3424 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3425 This probably means that movemail could lose mail.
3426 There may be a `development' package to install containing liblockfile.])
3429 AC_CHECK_HEADERS_ONCE(maillock.h)
3432 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3433 ## interlock access to the mail spool. The alternative is a lock file named
3434 ## /usr/spool/mail/$USER.lock.
3437 aix4-2) mail_lock="lockf" ;;
3439 gnu|freebsd|dragonfly|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
3441 ## On GNU/Linux systems, both methods are used by various mail programs.
3442 ## I assume most people are using newer mailers that have heard of flock.
3443 ## Change this if you need to.
3444 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
3445 ## configure gets the right answers, and that means *NOT* using flock.
3446 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3447 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
3448 ## Debian maintainer hasn't provided a clean fix for Emacs.
3449 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
3450 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3451 ## correct logic. -- fx
3452 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3453 ## liblockfile is a Free Software replacement for libmail, used on
3454 ## Debian systems and elsewhere. -rfr.
3457 if test $have_mail = yes || test $have_lockfile = yes; then
3458 test $ac_cv_header_maillock_h = yes && mail_lock=no
3463 mail_lock="none-needed" ;;
3467 case "$mail_lock" in
3468 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3470 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3474 *) BLESSMAIL_TARGET="need-blessmail" ;;
3476 AC_SUBST(BLESSMAIL_TARGET)
3479 LIBS="$LIB_PTHREAD $LIB_MATH $LIBS"
3480 AC_CHECK_FUNCS(accept4 gethostname \
3481 getrusage get_current_dir_name \
3482 lrand48 random rint \
3483 select getpagesize setlocale \
3484 getrlimit setrlimit shutdown getaddrinfo \
3485 pthread_sigmask strsignal setitimer \
3486 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
3488 getpwent endpwent getgrent endgrent \
3489 cfmakeraw cfsetspeed copysign __executable_start log2)
3492 dnl No need to check for aligned_alloc and posix_memalign if using
3493 dnl gmalloc.o, as it supplies them. Don't use these functions on
3494 dnl Darwin as they are incompatible with unexmacosx.c.
3495 if test -z "$GMALLOC_OBJ" && test "$opsys" != darwin; then
3496 AC_CHECK_FUNCS([aligned_alloc posix_memalign], [break])
3499 dnl Cannot use AC_CHECK_FUNCS
3500 AC_CACHE_CHECK([for __builtin_unwind_init],
3501 emacs_cv_func___builtin_unwind_init,
3502 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3503 emacs_cv_func___builtin_unwind_init=yes,
3504 emacs_cv_func___builtin_unwind_init=no)])
3505 if test $emacs_cv_func___builtin_unwind_init = yes; then
3506 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3507 [Define to 1 if you have the `__builtin_unwind_init' function.])
3510 AC_CHECK_HEADERS_ONCE(sys/un.h)
3515 AC_CHECK_FUNCS(grantpt)
3517 # PTY-related GNU extensions.
3518 AC_CHECK_FUNCS(getpt posix_openpt)
3520 # Check this now, so that we will NOT find the above functions in ncurses.
3521 # That is because we have not set up to link ncurses in lib-src.
3522 # It's better to believe a function is not available
3523 # than to expect to find it in ncurses.
3524 # Also we need tputs and friends to be able to build at all.
3525 AC_MSG_CHECKING([for library containing tputs])
3526 # Run a test program that contains a call to tputs, a call that is
3527 # never executed. This tests whether a pre-'main' dynamic linker
3528 # works with the library. It's too much trouble to actually call
3529 # tputs in the test program, due to portability hassles. When
3530 # cross-compiling, assume the test program will run if it links.
3531 AC_DEFUN([tputs_link_source], [
3533 [[extern void tputs (const char *, int, int (*)(int));
3534 int main (int argc, char **argv)
3537 tputs (argv[0], 0, 0);
3541 if test "${opsys}" = "mingw32"; then
3544 # Maybe curses should be tried earlier?
3545 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3546 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3548 if test -z "$tputs_library"; then
3552 LIBS_TERMCAP=-l$tputs_library
3554 LIBS="$LIBS_TERMCAP $LIBS"
3556 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3557 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3559 if test "X$msg" != Xno; then
3564 AC_MSG_RESULT([$msg])
3565 if test "X$msg" = Xno; then
3566 AC_MSG_ERROR([The required function `tputs' was not found in any library.
3567 The following libraries were tried (in order):
3568 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3569 Please try installing whichever of these libraries is most appropriate
3570 for your system, together with its header files.
3571 For example, a libncurses-dev(el) or similar package.])
3574 ## Use termcap instead of terminfo?
3575 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3577 ## FIXME? In the cases below where we unconditionally set
3578 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3579 ## if that was found above to have tputs.
3580 ## Should we use the gnu* logic everywhere?
3582 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3583 ## The ncurses library has been moved out of the System framework in
3584 ## Mac OS X 10.2. So if configure detects it, set the command-line
3585 ## option to use it.
3586 darwin) LIBS_TERMCAP="-lncurses" ;;
3588 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3591 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3592 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3593 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3594 [[#if __FreeBSD_version < 400000
3597 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3599 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3601 if test $emacs_cv_freebsd_terminfo = yes; then
3602 LIBS_TERMCAP="-lncurses"
3605 LIBS_TERMCAP="-ltermcap"
3615 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3617 LIBS_TERMCAP="-ltermcap"
3621 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
3623 ## hpux: Make sure we get select from libc rather than from libcurses
3624 ## because libcurses on HPUX 10.10 has a broken version of select.
3625 ## We used to use -lc -lcurses, but this may be cleaner.
3626 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3627 # set that way, now it uses the default). Isn't this a contradiction?
3628 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3632 TERMCAP_OBJ=tparam.o
3633 if test $TERMINFO = yes; then
3634 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3635 TERMCAP_OBJ=terminfo.o
3637 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
3638 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
3640 AC_SUBST(LIBS_TERMCAP)
3641 AC_SUBST(TERMCAP_OBJ)
3644 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3645 # On Darwin, res_init appears not to be useful: see bug#562 and
3646 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3649 if test $opsys != darwin; then
3651 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3652 #include <arpa/nameser.h>
3653 #include <resolv.h>]],
3654 [[return res_init();]])],
3655 have_res_init=yes, have_res_init=no)
3656 if test "$have_res_init" = no; then
3658 LIBS="$LIBS -lresolv"
3659 AC_MSG_CHECKING(for res_init with -lresolv)
3660 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3661 #include <arpa/nameser.h>
3662 #include <resolv.h>]],
3663 [[return res_init();]])],
3664 have_res_init=yes, have_res_init=no)
3665 AC_MSG_RESULT($have_res_init)
3666 if test "$have_res_init" = yes ; then
3672 if test "$have_res_init" = yes; then
3673 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3677 # Do we need the Hesiod library to provide the support routines?
3678 dnl FIXME? Should we be skipping this on Darwin too?
3680 if test "$with_hesiod" != no ; then
3681 # Don't set $LIBS here -- see comments above. FIXME which comments?
3682 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3683 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3684 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3685 if test "$resolv" = yes ; then
3690 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3691 hesiod=yes, :, $RESOLVLIB)])
3693 if test x"$hesiod" = xyes; then
3699 # Do we need libresolv (due to res_init or Hesiod)?
3700 if test "$resolv" = yes && test $opsys != darwin; then
3707 # These tell us which Kerberos-related libraries to use.
3714 if test "${with_kerberos}" != no; then
3716 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3717 if test $have_com_err = yes; then
3718 COM_ERRLIB=-lcom_err
3719 LIBS="$COM_ERRLIB $LIBS"
3721 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3722 if test $have_crypto = yes; then
3724 LIBS="$CRYPTOLIB $LIBS"
3726 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3727 if test $have_k5crypto = yes; then
3728 CRYPTOLIB=-lk5crypto
3729 LIBS="$CRYPTOLIB $LIBS"
3731 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3732 if test $have_krb5=yes; then
3734 LIBS="$KRB5LIB $LIBS"
3736 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3737 if test "${with_kerberos5}" = no; then
3738 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3739 if test $have_des425 = yes; then
3741 LIBS="$DESLIB $LIBS"
3743 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3744 if test $have_des = yes; then
3746 LIBS="$DESLIB $LIBS"
3749 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3750 if test $have_krb4 = yes; then
3752 LIBS="$KRB4LIB $LIBS"
3754 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3755 if test $have_krb = yes; then
3757 LIBS="$KRB4LIB $LIBS"
3762 if test "${with_kerberos5}" != no; then
3763 AC_CHECK_HEADERS(krb5.h,
3764 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3765 [#include <krb5.h>])])
3767 AC_CHECK_HEADERS(krb.h,,
3768 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3769 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3771 AC_CHECK_HEADERS(com_err.h)
3775 AC_SUBST(COM_ERRLIB)
3781 AC_CHECK_HEADERS(valgrind/valgrind.h)
3783 AC_CHECK_FUNCS_ONCE(tzset)
3784 AC_MSG_CHECKING(whether localtime caches TZ)
3785 AC_CACHE_VAL(emacs_cv_localtime_cache,
3786 [if test x$ac_cv_func_tzset = xyes; then
3787 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3788 char TZ_GMT0[] = "TZ=GMT0";
3789 char TZ_PST8[] = "TZ=PST8";
3792 time_t now = time ((time_t *) 0);
3793 int hour_GMT0, hour_unset;
3794 if (putenv (TZ_GMT0) != 0)
3796 hour_GMT0 = localtime (&now)->tm_hour;
3798 hour_unset = localtime (&now)->tm_hour;
3799 if (putenv (TZ_PST8) != 0)
3801 if (localtime (&now)->tm_hour == hour_GMT0)
3804 if (localtime (&now)->tm_hour != hour_unset)
3807 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3808 [# If we have tzset, assume the worst when cross-compiling.
3809 emacs_cv_localtime_cache=yes])
3811 # If we lack tzset, report that localtime does not cache TZ,
3812 # since we can't invalidate the cache if we don't have tzset.
3813 emacs_cv_localtime_cache=no
3815 AC_MSG_RESULT($emacs_cv_localtime_cache)
3816 if test $emacs_cv_localtime_cache = yes; then
3817 AC_DEFINE(LOCALTIME_CACHE, 1,
3818 [Define to 1 if localtime caches TZ.])
3822 AC_CHECK_FUNC(socket, , ok_so_far=no)
3823 if test $ok_so_far = yes; then
3824 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3826 if test $ok_so_far = yes; then
3827 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3829 if test $ok_so_far = yes; then
3830 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3831 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3832 [Define to 1 if you have inet sockets.])
3837 AC_CHECK_FUNCS(snprintf)
3839 dnl Check for glib. This differs from other library checks in that
3840 dnl Emacs need not link to glib unless some other library is already
3841 dnl linking to glib. Although glib provides no facilities that Emacs
3842 dnl needs for its own purposes, when glib is present Emacs needs to
3843 dnl use primitives like g_main_context_query to avoid clashing with
3844 dnl glib at a low level.
3846 dnl Check this late, since it depends on $GTK_CFLAGS etc.
3850 CFLAGS="$CFLAGS $GTK_CFLAGS $RSVG_CFLAGS $DBUS_CFLAGS $SETTINGS_CFLAGS"
3851 LIBS="$LIBS $GTK_LIBS $RSVG_LIBS $DBUS_LIBS $SETTINGS_LIBS"
3852 CFLAGS="$CFLAGS $GFILENOTIFY_CFLAGS"
3853 LIBS="$LIBS $GFILENOTIFY_LIBS"
3854 AC_MSG_CHECKING([whether GLib is linked in])
3855 AC_LINK_IFELSE([AC_LANG_PROGRAM(
3858 [[g_print ("Hello world");]])],
3861 AC_MSG_RESULT([$links_glib])
3862 if test "${links_glib}" = "yes"; then
3863 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
3864 if test "$HAVE_NS" = no;then
3872 dnl Adapted from Haible's version.
3873 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3874 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3875 [[char* cs = nl_langinfo(CODESET);]])],
3876 emacs_cv_langinfo_codeset=yes,
3877 emacs_cv_langinfo_codeset=no)
3879 if test $emacs_cv_langinfo_codeset = yes; then
3880 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3881 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3886 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3887 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3888 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3889 if test "$emacs_cv_c_restrict_arr" = yes; then
3890 AC_DEFINE(__restrict_arr, __restrict,
3891 [Define to compiler's equivalent of C99 restrict keyword in array
3892 declarations. Define as empty for no equivalent.])
3895 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3896 dnl how the tty code is related to POSIX and/or other versions of termios.
3897 dnl The following looks like a useful start.
3899 dnl AC_SYS_POSIX_TERMIOS
3900 dnl if test $ac_cv_sys_posix_termios = yes; then
3901 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3902 dnl and macros for terminal control.])
3903 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3906 dnl Turned on June 1996 supposing nobody will mind it.
3907 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
3908 if test "${opsys}" != "mingw32"; then
3909 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3910 in the full name stands for the login id.])
3913 dnl Everybody supports this, except MS.
3914 dnl Seems like the kind of thing we should be testing for, though.
3915 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3916 if test "${opsys}" != "mingw32"; then
3917 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3920 dnl Everybody supports this, except MS-DOS.
3921 dnl Seems like the kind of thing we should be testing for, though.
3922 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3923 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3924 4.2-compatible sockets.])
3926 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3928 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
3929 a null file, or a data sink.])
3930 if test "${opsys}" = "mingw32"; then
3931 AC_DEFINE(NULL_DEVICE, ["NUL:"])
3933 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
3936 if test "${opsys}" = "mingw32"; then
3941 AC_DEFINE_UNQUOTED(SEPCHAR, ['$SEPCHAR'], [Character that separates PATH elements.])
3942 dnl This is for MinGW, and is used in test/automated/Makefile.in.
3943 dnl The MSYS Bash has heuristics for replacing ':' with ';' when it
3944 dnl decides that a command-line argument to be passed to a MinGW program
3945 dnl is a PATH-style list of directories. But that heuristics plays it
3946 dnl safe, and only does the replacement when it is _absolutely_ sure it
3947 dnl sees a colon-separated list of file names; e.g. ":." is left alone,
3948 dnl which breaks in-tree builds. So we do this manually instead.
3949 dnl Note that we cannot rely on PATH_SEPARATOR, as that one will always
3950 dnl be computed as ':' in MSYS Bash.
3953 dnl Everybody supports this, except MS-DOS.
3954 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3956 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3959 AC_DEFINE(DIRECTORY_SEP, ['/'],
3960 [Character that separates directories in a file name.])
3962 if test "${opsys}" = "mingw32"; then
3963 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
3964 [Returns true if character is a device separator.])
3966 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
3967 [Returns true if character is a directory separator.])
3969 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
3970 [Returns true if character is any form of separator.])
3972 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
3973 [Returns true if character is a device separator.])
3975 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
3976 [Returns true if character is a directory separator.])
3978 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
3979 [Returns true if character is any form of separator.])
3982 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
3986 dnl Unfortunately without libXmu we cannot support EditRes.
3987 if test "x$ac_cv_search_XmuConvertStandardSelection" = xno; then
3988 AC_DEFINE(NO_EDITRES, 1)
3993 dnl Assar Westerlund <assar@sics.se> says this is necessary for
3994 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
3995 AC_DEFINE(NO_EDITRES, 1)
4001 irix6-5 | sol2* | unixware )
4002 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
4003 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
4004 dnl need the constant to dimension an array. So wire in the appropriate
4006 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
4010 emacs_broken_SIGIO=no
4013 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
4014 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
4015 hpux* | irix6-5 | openbsd | sol2* | unixware )
4016 emacs_broken_SIGIO=yes
4020 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
4021 dnl the way this system works, libc functions that return malloced
4022 dnl memory use the libc malloc implementation. Calling xfree or
4023 dnl xrealloc on the results of such functions results in a crash.
4025 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
4026 dnl but that does not currently work on this system.
4028 dnl It is possible to completely override the malloc implementation on
4029 dnl AIX, but that involves putting the malloc functions in a shared
4030 dnl library and setting the MALLOCTYPE environment variable to point to
4031 dnl that shared library.
4033 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
4034 dnl to avoid a crash just use the Emacs implementation for that function.
4036 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
4037 dnl of this file, so that we do not check for get_current_dir_name
4038 dnl on AIX. But that might be fragile if something else ends
4039 dnl up testing for get_current_dir_name as a dependency.
4040 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
4041 get_current_dir_name should not be used.])
4045 dnl Circumvent a bug in FreeBSD. In the following sequence of
4046 dnl writes/reads on a PTY, read(2) returns bogus data:
4048 dnl write(2) 1022 bytes
4049 dnl write(2) 954 bytes, get EAGAIN
4050 dnl read(2) 1024 bytes in process_read_output
4051 dnl read(2) 11 bytes in process_read_output
4053 dnl That is, read(2) returns more bytes than have ever been written
4054 dnl successfully. The 1033 bytes read are the 1022 bytes written
4055 dnl successfully after processing (for example with CRs added if the
4056 dnl terminal is set up that way which it is here). The same bytes will
4057 dnl be seen again in a later read(2), without the CRs.
4058 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
4059 work around an issue when reading from a PTY.])
4065 dnl FIXME Can't we test if this exists (eg /proc/$$)?
4066 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
4071 darwin | dragonfly | freebsd | netbsd | openbsd )
4072 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
4073 close a pty to make it a controlling terminal (it is already a
4074 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
4078 dnl FIXME Surely we can test for this rather than hard-code it.
4080 netbsd | openbsd) sound_device="/dev/audio" ;;
4081 *) sound_device="/dev/dsp" ;;
4085 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
4086 [Name of the default sound device.])
4089 dnl Emacs can read input using SIGIO and buffering characters itself,
4090 dnl or using CBREAK mode and making C-g cause SIGINT.
4091 dnl The choice is controlled by the variable interrupt_input.
4093 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
4095 dnl Emacs uses the presence of the USABLE_SIGIO macro
4096 dnl to indicate whether or not signal-driven I/O is possible. It uses
4097 dnl INTERRUPT_INPUT to decide whether to use it by default.
4099 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
4100 dnl CBREAK mode has two disadvantages
4101 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
4102 dnl I hear that in system V this problem does not exist.
4103 dnl 2) Control-G causes output to be discarded.
4104 dnl I do not know whether this can be fixed in system V.
4106 dnl Another method of doing input is planned but not implemented.
4107 dnl It would have Emacs fork off a separate process
4108 dnl to read the input and send it to the true Emacs process
4111 darwin | gnu-linux | gnu-kfreebsd )
4112 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
4117 dnl If the system's imake configuration file defines `NeedWidePrototypes'
4118 dnl as `NO', we must define NARROWPROTO manually. Such a define is
4119 dnl generated in the Makefile generated by `xmkmf'. If we don't define
4120 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
4121 dnl taking float or double parameters.
4123 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
4124 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
4125 file defines `NeedWidePrototypes' as `NO'.])
4130 dnl Used in process.c, this must be a loop, even if it only runs once.
4131 dnl (Except on SGI; see below. Take that, clarity and consistency!)
4132 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
4133 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
4134 dnl trying suffixes 0-16.
4135 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
4136 first PTY, if PTYs are supported.])
4137 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
4138 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
4139 end of a PTY, if non-standard.])
4140 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
4141 end of a PTY, if non-standard.])
4145 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4146 dnl You allocate a pty by opening /dev/ptc to get the master side.
4147 dnl To get the name of the slave side, you just ttyname() the master side.
4148 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4149 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4153 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4154 dnl multi-line AC_DEFINEs are hard. :(
4155 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 (false)])
4156 AC_DEFINE(PTY_NAME_SPRINTF, [])
4157 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4160 dnl FIXME? Maybe use same as freebsd - see bug#12040.
4162 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4163 dnl Not used, because PTY_ITERATION is defined.
4164 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4165 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
4166 dnl But we don't have to block SIGCHLD because it is blocked in the
4167 dnl implementation of grantpt.
4168 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (false)])
4169 AC_DEFINE(PTY_NAME_SPRINTF, [])
4170 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4174 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4177 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd )
4179 if test "x$ac_cv_func_grantpt" = xyes; then
4180 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4181 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4182 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4183 dnl to prevent sigchld_handler from intercepting the child's death.
4184 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); }])
4185 dnl if HAVE_POSIX_OPENPT
4186 if test "x$ac_cv_func_posix_openpt" = xyes; then
4187 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (false)])
4188 AC_DEFINE(PTY_NAME_SPRINTF, [])
4190 elif test "x$ac_cv_func_getpt" = xyes; then
4191 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4192 AC_DEFINE(PTY_NAME_SPRINTF, [])
4194 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4197 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4202 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4203 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4204 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4208 dnl It looks like this cannot be right, because it is not a loop.
4209 dnl However, process.c actually does this:
4215 dnl which presumably makes it OK, since irix == sgi (?).
4216 dnl FIXME it seems like this special treatment is unnecessary?
4217 dnl Why can't irix use a single-trip loop like eg cygwin?
4218 AC_DEFINE(PTY_ITERATION, [])
4219 dnl Not used, because PTY_ITERATION is defined.
4220 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
4221 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); }])
4222 dnl No need to get the pty name at all.
4223 AC_DEFINE(PTY_NAME_SPRINTF, [])
4224 dnl No need to use sprintf to get the tty name--we get that from _getpty.
4225 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4229 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
4230 dnl from intercepting that death. If any child but grantpt's should die
4231 dnl within, it should be caught after sigrelse(2).
4232 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); }])
4236 dnl Comments are as per sol2*.
4237 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); }])
4244 dnl This change means that we don't loop through allocate_pty too
4245 dnl many times in the (rare) event of a failure.
4246 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4247 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4248 dnl Push various streams modules onto a PTY channel. Used in process.c.
4249 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.])
4254 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4255 "typing" a signal character on the pty.])
4258 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4259 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
4260 aix4-2 | cygwin | gnu | irix6-5 | dragonfly | freebsd | netbsd | openbsd | darwin )
4261 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4264 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4265 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4266 gnu-linux | gnu-kfreebsd )
4268 AC_MSG_CHECKING([for signals via characters])
4269 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4270 #include <linux/version.h>
4271 #if LINUX_VERSION_CODE < 0x20400
4272 # error "Linux version too old"
4274 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4276 AC_MSG_RESULT([$emacs_signals_via_chars])
4277 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4282 AH_TEMPLATE(TAB3, [Undocumented.])
4285 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4287 gnu | dragonfly | freebsd | netbsd | openbsd )
4288 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4289 AC_DEFINE(TAB3, OXTABS)
4292 gnu-linux | gnu-kfreebsd )
4293 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4297 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4298 [do { extern void *__libc_ia64_register_backing_store_base; __builtin_ia64_flushrs (); mark_memory (__libc_ia64_register_backing_store_base, __builtin_ia64_bsp ());} while (false)],
4299 [Mark a secondary stack, like the register stack on the ia64.]), [])
4303 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4304 run_time_remap; for HPUX.])
4309 dnl This won't be used automatically yet. We also need to know, at least,
4310 dnl that the stack is continuous.
4311 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4312 registers relevant for conservative garbage collection in the jmp_buf.])
4316 dnl Not all the architectures are tested, but there are Debian packages
4317 dnl for SCM and/or Guile on them, so the technique must work. See also
4318 dnl comments in alloc.c concerning setjmp and gcc.
4319 dnl Fixme: it's probably safe to just use the GCC conditional below.
4320 gnu-linux | gnu-kfreebsd )
4321 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4322 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4323 || defined __alpha__ || defined __mips__ || defined __s390__ \
4324 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4325 || defined __ia64__ || defined __sh__
4328 # error "setjmp not known to work on this arch"
4330 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4335 if test x$GCC = xyes; then
4336 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4337 AC_DEFINE(GC_SETJMP_WORKS, 1)
4340 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
4341 aix* | dragonfly | freebsd | netbsd | openbsd | irix6-5 | sol2* )
4342 AC_DEFINE(GC_SETJMP_WORKS, 1)
4347 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4348 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4351 [[#include <setjmp.h>
4353 # define _longjmp longjmp
4358 _longjmp (j, 1);]])],
4359 [emacs_cv_func__setjmp=yes],
4360 [emacs_cv_func__setjmp=no])])
4361 if test $emacs_cv_func__setjmp = yes; then
4362 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4364 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4367 [[#include <setjmp.h>
4370 if (! sigsetjmp (j, 1))
4371 siglongjmp (j, 1);]])],
4372 [emacs_cv_func_sigsetjmp=yes],
4373 [emacs_cv_func_sigsetjmp=no])])
4374 if test $emacs_cv_func_sigsetjmp = yes; then
4375 AC_DEFINE([HAVE_SIGSETJMP], 1,
4376 [Define to 1 if sigsetjmp and siglongjmp work.
4377 The value of this symbol is irrelevant if HAVE__SETJMP is defined.])
4383 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4384 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4385 dnl and this is all we need.
4386 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4393 dnl Used in xfaces.c.
4394 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4395 some systems, where it requires time.h.])
4400 dnl Define symbols to identify the version of Unix this is.
4401 dnl Define all the symbols that apply correctly.
4402 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4403 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4404 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4405 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4410 dnl This symbol should be defined on AIX Version 3 ???????
4411 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4413 # error "_AIX not defined"
4415 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4419 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4423 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
4424 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4425 dnl distinguish OS X from pure Darwin.
4426 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4429 gnu-linux | gnu-kfreebsd )
4431 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4436 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4441 AC_DEFINE(USG5_4, [])
4442 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4446 AC_DEFINE(DOS_NT, [])
4447 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4448 if test "x$ac_enable_checking" != "x" ; then
4449 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4455 AC_DEFINE(USG5_4, [])
4456 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4461 AC_DEFINE(USG5_4, [])
4465 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4468 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4469 emacs_cv_usable_FIONREAD=no
4473 emacs_cv_usable_FIONREAD=yes
4478 [AC_LANG_PROGRAM([[#include <sys/types.h>
4479 #include <sys/ioctl.h>
4481 # include <sys/filio.h>
4484 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4485 [emacs_cv_usable_FIONREAD=yes],
4486 [emacs_cv_usable_FIONREAD=no])
4489 if test $emacs_cv_usable_FIONREAD = yes; then
4490 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4492 if test $emacs_broken_SIGIO = no; then
4493 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4495 [AC_LANG_PROGRAM([[#include <fcntl.h>
4498 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4499 [emacs_cv_usable_SIGIO=yes],
4500 [emacs_cv_usable_SIGIO=no])],
4501 [emacs_cv_usable_SIGIO=yes],
4502 [emacs_cv_usable_SIGIO=no])
4503 if test $emacs_cv_usable_SIGIO = yes; then
4504 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4511 dnl Emacs supplies its own malloc, but glib calls posix_memalign,
4512 dnl and on Cygwin prior to version 1.7.24 that becomes the
4513 dnl Cygwin-supplied posix_memalign. As malloc is not the Cygwin
4514 dnl malloc, the Cygwin posix_memalign always returns ENOSYS. A
4515 dnl workaround is to set G_SLICE=always-malloc. This is no longer
4516 dnl needed starting with cygwin-1.7.24, and it is no longer
4517 dnl effective starting with glib-2.36. */
4519 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
4520 G_SLICE environment variable to "always-malloc" at startup.])
4524 dnl It works to open the pty's tty in the parent (Emacs), then
4525 dnl close and reopen it in the child.
4526 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4527 works to open a pty's tty in the parent process, then close and
4528 reopen it in the child.])
4532 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4533 use VSUSP instead of VSWTCH.])
4537 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4542 # Set up the CFLAGS for real compilation, so we can substitute it.
4543 CFLAGS="$REAL_CFLAGS"
4544 CPPFLAGS="$REAL_CPPFLAGS"
4547 ## Hack to detect a buggy GCC version.
4548 if test "x$GCC" = xyes \
4549 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4550 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4551 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4552 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4555 version=$PACKAGE_VERSION
4557 copyright="Copyright (C) 2014 Free Software Foundation, Inc."
4558 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4559 [Short copyright string for this version of Emacs.])
4562 ### Specify what sort of things we'll be editing into Makefile and config.h.
4563 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4565 AC_SUBST(configuration)
4570 AC_SUBST(exec_prefix)
4573 AC_SUBST(sharedstatedir)
4574 AC_SUBST(libexecdir)
4578 AC_SUBST(standardlisppath)
4579 AC_SUBST(locallisppath)
4581 AC_SUBST(x_default_search_path)
4583 AC_SUBST(archlibdir)
4588 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4589 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4590 ## end of LIBX_BASE, but nothing ever set it.
4591 AC_SUBST(LD_SWITCH_X_SITE)
4592 AC_SUBST(C_SWITCH_X_SITE)
4593 AC_SUBST(GNUSTEP_CFLAGS)
4595 ## Used in lwlib/Makefile.in.
4596 AC_SUBST(X_TOOLKIT_TYPE)
4598 AC_SUBST(ns_appbindir)
4599 AC_SUBST(ns_appresdir)
4601 AC_SUBST(GNU_OBJC_CFLAGS)
4602 AC_SUBST(OTHER_FILES)
4604 if test -n "${term_header}"; then
4605 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4606 [Define to the header for the built-in window system.])
4609 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4610 [Define to the canonical Emacs configuration name.])
4611 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4612 [Define to the options passed to configure.])
4613 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4614 define this to include extra configuration information.])
4618 AC_DEFINE(config_opsysfile, <ms-w32.h>, [])
4625 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4626 AC_DEFINE(HAVE_X_WINDOWS, 1,
4627 [Define to 1 if you want to use the X window system.])
4629 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4631 if test "$HAVE_XFT" = "yes"; then
4632 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4633 elif test "$HAVE_FREETYPE" = "yes"; then
4634 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4644 if test "${USE_X_TOOLKIT}" != "none" ; then
4646 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4647 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4648 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4649 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4650 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4654 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4655 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4659 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4660 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4661 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4665 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4666 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4669 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4672 AC_SUBST(WIDGET_OBJ)
4675 case "$USE_X_TOOLKIT" in
4676 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4677 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4678 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4680 AC_SUBST(TOOLKIT_LIBW)
4682 if test "${opsys}" != "mingw32"; then
4683 if test "$USE_X_TOOLKIT" = "none"; then
4684 LIBXT_OTHER="\$(LIBXSM)"
4686 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4689 AC_SUBST(LIBXT_OTHER)
4691 if test "${HAVE_X11}" = "yes" ; then
4692 AC_DEFINE(HAVE_X11, 1,
4693 [Define to 1 if you want to use version 11 of X windows.])
4694 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4698 AC_SUBST(LIBX_OTHER)
4700 if test "$HAVE_GTK" = yes || test "$HAVE_X11" != yes; then
4702 elif test "$USE_X_TOOLKIT" = none; then
4703 LIBXMENU='$(oldXMenudir)/libXMenu11.a'
4705 LIBXMENU='$(lwlibdir)/liblw.a'
4709 if test "${GNU_MALLOC}" = "yes" ; then
4710 AC_DEFINE(GNU_MALLOC, 1,
4711 [Define to 1 if you want to use the GNU memory allocator.])
4715 if test "${REL_ALLOC}" = "yes" ; then
4716 AC_DEFINE(REL_ALLOC, 1,
4717 [Define REL_ALLOC if you want to use the relocating allocator for
4720 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4722 AC_SUBST(RALLOC_OBJ)
4724 if test "$opsys" = "cygwin"; then
4725 CYGWIN_OBJ="sheap.o cygw32.o"
4726 ## Cygwin differs because of its unexec().
4728 POST_ALLOC_OBJ=lastfile.o
4729 elif test "$opsys" = "mingw32"; then
4732 POST_ALLOC_OBJ=lastfile.o
4735 PRE_ALLOC_OBJ=lastfile.o
4738 AC_SUBST(CYGWIN_OBJ)
4739 AC_SUBST(PRE_ALLOC_OBJ)
4740 AC_SUBST(POST_ALLOC_OBJ)
4742 dnl Call this 'FORTIFY_SOUR' so that it sorts before the 'FORTIFY_SOURCE'
4743 dnl verbatim defined above. The tricky name is apropos, as this hack
4744 dnl makes Fortify go sour!
4745 AH_VERBATIM([FORTIFY_SOUR],
4746 [/* Without the following workaround, Emacs runs slowly on OS X 10.8.
4747 The workaround disables some useful run-time checking, so it
4748 should be conditional to the platforms with the performance bug.
4749 Perhaps Apple will fix this some day; also see m4/extern-inline.m4. */
4750 #if defined __APPLE__ && defined __GNUC__
4751 # ifndef _DONT_USE_CTYPE_INLINE_
4752 # define _DONT_USE_CTYPE_INLINE_
4754 # ifndef _FORTIFY_SOURCE
4755 # define _FORTIFY_SOURCE 0
4760 # If user asks to omit features, disable optional features that gnulib
4761 # might otherwise enable.
4762 if test "$with_features" = no && test "$enable_acl" != yes; then
4766 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4767 # it temporarily reverts them to their pre-pkg-config values,
4768 # because gnulib needs to work with both src (which uses the
4769 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4770 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4771 # and it therefore needs to run in an environment where LIBS does not
4772 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4773 # for some package unrelated to lib-src.
4776 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4777 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4778 gl_ASSERT_NO_GNULIB_POSIXCHECK
4779 gl_ASSERT_NO_GNULIB_TESTS
4784 if test "${opsys}" = "mingw32"; then
4785 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I \${abs_top_srcdir}/nt/inc"
4786 # Remove unneeded switches from the value of CC that goes to Makefiles
4787 CC=`echo $CC | sed -e "s,$GCC_TEST_OPTIONS,,"`
4791 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4794 ## The -headerpad option tells ld (see man page) to leave room at the
4795 ## end of the header for adding load commands. Needed for dumping.
4796 ## 0x690 is the total size of 30 segment load commands (at 56
4797 ## each); under Cocoa 31 commands are required.
4798 if test "$HAVE_NS" = "yes"; then
4799 libs_nsgui="-framework AppKit"
4800 if test "$NS_IMPL_COCOA" = "yes"; then
4801 libs_nsgui="$libs_nsgui -framework IOKit"
4808 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4810 ## This is here because src/Makefile.in did some extra fiddling around
4811 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
4812 ## LD_SWITCH_SYSTEM_TEMACS instead,
4813 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4814 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4817 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4818 ## find X at run-time.
4819 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4820 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4821 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4822 ## had different values in configure (in ac_link) and src/Makefile.in.
4823 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4824 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4827 ## Is it any better under MinGW64 to relocate emacs into higher addresses?
4828 case "$canonical" in
4829 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x400000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4830 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4834 openbsd) LD_SWITCH_SYSTEM_TEMACS='-nopie' ;;
4836 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4839 if test x$ac_enable_profiling != x ; then
4841 *freebsd | gnu-linux) ;;
4842 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
4846 LD_SWITCH_SYSTEM_TEMACS="$LDFLAGS_NOCOMBRELOC $LD_SWITCH_SYSTEM_TEMACS"
4848 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4850 ## Common for all window systems
4851 if test "$window_system" != "none"; then
4852 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4853 AC_DEFINE(POLL_FOR_INPUT, 1, [Define if you poll periodically to detect C-g.])
4854 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4857 AC_SUBST(WINDOW_SYSTEM_OBJ)
4859 AH_TOP([/* GNU Emacs site configuration template file.
4861 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2014
4862 Free Software Foundation, Inc.
4864 This file is part of GNU Emacs.
4866 GNU Emacs is free software: you can redistribute it and/or modify
4867 it under the terms of the GNU General Public License as published by
4868 the Free Software Foundation, either version 3 of the License, or
4869 (at your option) any later version.
4871 GNU Emacs is distributed in the hope that it will be useful,
4872 but WITHOUT ANY WARRANTY; without even the implied warranty of
4873 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4874 GNU General Public License for more details.
4876 You should have received a copy of the GNU General Public License
4877 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4880 /* No code in Emacs #includes config.h twice, but some bits of code
4881 intended to work with other packages as well (like gmalloc.c)
4882 think they can include it as many times as they like. */
4883 #ifndef EMACS_CONFIG_H
4884 #define EMACS_CONFIG_H
4887 AH_BOTTOM([#include <conf_post.h>
4889 #endif /* EMACS_CONFIG_H */
4898 #### Report on what we decided to do.
4899 #### Report GTK as a toolkit, even if it doesn't use Xt.
4900 #### It makes printing result more understandable as using GTK sets
4901 #### toolkit_scroll_bars to yes by default.
4902 if test "${HAVE_GTK}" = "yes"; then
4903 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
4906 if test $USE_ACL -ne 0; then
4907 ACL_SUMMARY="yes $LIB_ACL"
4913 Configured for \`${canonical}'.
4915 Where should the build process find the source code? ${srcdir}
4916 What compiler should emacs be built with? ${CC} ${CFLAGS}
4917 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4918 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4919 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4920 What window system should Emacs use? ${window_system}
4921 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4923 if test -n "${x_includes}"; then
4924 echo " Where do we find X Windows header files? ${x_includes}"
4926 echo " Where do we find X Windows header files? Standard dirs"
4928 if test -n "${x_libraries}"; then
4929 echo " Where do we find X Windows libraries? ${x_libraries}"
4931 echo " Where do we find X Windows libraries? Standard dirs"
4935 emacs_config_features=
4936 for opt in XAW3D XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS \
4937 GCONF GSETTINGS NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT \
4941 NOTIFY|ACL) eval val=\${${opt}_SUMMARY} ;;
4942 *) eval val=\${HAVE_$opt} ;;
4944 test x"$val" = xno && continue
4945 AS_VAR_APPEND([emacs_config_features], ["$optsep$opt"])
4948 AC_DEFINE_UNQUOTED(EMACS_CONFIG_FEATURES, "${emacs_config_features}",
4949 [Summary of some of the main features enabled by configure.])
4951 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4952 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4953 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4954 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4955 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4956 echo " Does Emacs use a png library? ${HAVE_PNG} $LIBPNG"
4957 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4958 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4960 echo " Does Emacs support sound? ${HAVE_SOUND}"
4962 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4963 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4964 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4965 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4966 echo " Does Emacs use a file notification library? ${NOTIFY_SUMMARY}"
4967 echo " Does Emacs use access control lists? ${ACL_SUMMARY}"
4968 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4969 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4970 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4972 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4973 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4974 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
4975 echo " Does Emacs use -lxft? ${HAVE_XFT}"
4976 echo " Does Emacs directly use zlib? ${HAVE_ZLIB}"
4978 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
4981 if test -n "${EMACSDATA}"; then
4982 echo " Environment variable EMACSDATA set to: $EMACSDATA"
4984 if test -n "${EMACSDOC}"; then
4985 echo " Environment variable EMACSDOC set to: $EMACSDOC"
4990 if test "$HAVE_NS" = "yes"; then
4992 echo "You must run \"${MAKE-make} install\" in order to test the built application.
4993 The installed application will go to nextstep/Emacs.app and can be
4994 run or moved from there."
4995 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
4996 echo "The application will be fully self-contained."
4998 echo "The lisp resources for the application will be installed under ${prefix}.
4999 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
5000 to run if these resources are not installed."
5005 if test "${opsys}" = "cygwin"; then
5007 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
5013 # Remove any trailing slashes in these variables.
5014 [test "${prefix}" != NONE &&
5015 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
5016 test "${exec_prefix}" != NONE &&
5017 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
5019 if test "$HAVE_NS" = "yes"; then
5020 if test "$NS_IMPL_GNUSTEP" = yes; then
5021 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
5022 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
5023 ns_check_file=Resources/Info-gnustep.plist
5025 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
5026 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
5027 ns_check_file=Contents/Info.plist
5029 AC_SUBST(ns_check_file)
5032 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
5033 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
5034 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
5035 dnl (else you get "no `Makefile.am' found for any configure output").
5036 dnl This will work, but you get a config.status that is not quite right
5037 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
5038 dnl That doesn't have any obvious consequences for Emacs, but on the whole
5039 dnl it seems better to just live with the duplication.
5040 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile nt/Makefile"
5042 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
5043 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
5044 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
5045 leim/Makefile nextstep/Makefile nt/Makefile])
5047 dnl test/ is not present in release tarfiles.
5048 opt_makefile=test/automated/Makefile
5050 if test -f "$srcdir/$opt_makefile.in"; then
5051 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
5052 dnl Again, it's best not to use a variable. Though you can add
5053 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
5054 AC_CONFIG_FILES([test/automated/Makefile])
5058 dnl The admin/ directory used to be excluded from tarfiles.
5059 if test -d $srcdir/admin; then
5060 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES admin/unidata/Makefile admin/grammars/Makefile"
5061 AC_CONFIG_FILES([admin/unidata/Makefile])
5062 AC_CONFIG_FILES([admin/grammars/Makefile])
5066 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
5068 AC_SUBST(SUBDIR_MAKEFILES_IN)
5070 dnl You might wonder (I did) why epaths.h is generated by running make,
5071 dnl rather than just letting configure generate it from epaths.in.
5072 dnl One reason is that the various paths are not fully expanded (see above);
5073 dnl eg gamedir=${prefix}/var/games/emacs.
5074 dnl Secondly, the GNU Coding standards require that one should be able
5075 dnl to run `make prefix=/some/where/else' and override the values set
5076 dnl by configure. This also explains the `move-if-change' test and
5077 dnl the use of force in the `epaths-force' rule in Makefile.in.
5078 AC_CONFIG_COMMANDS([src/epaths.h], [
5079 if test "${opsys}" = "mingw32"; then
5080 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
5082 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
5083 fi || AC_MSG_ERROR(['src/epaths.h' could not be made.])
5084 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
5086 dnl NB we have to cheat and use the ac_... version because abs_top_srcdir
5087 dnl is not yet set, sigh. Or we could use ../$srcdir/src/.gdbinit,
5089 AC_CONFIG_COMMANDS([src/.gdbinit], [
5090 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
5091 echo "source $ac_abs_top_srcdir/src/.gdbinit" > src/.gdbinit
5097 test "$MAKE" = make || AC_MSG_NOTICE([Now you can run '$MAKE'.])