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_$1=no])])])
1374 PKG_CHECK_MODULES([GUILE], [guile-2.2], [],
1375 [PKG_CHECK_MODULES([GUILE], [guile-2.0])])
1376 AC_SUBST(GUILE_CFLAGS)
1377 AC_SUBST(GUILE_LIBS)
1379 AC_PATH_PROG(GUILE_SNARF, guile-snarf, no)
1380 if test "$GUILE_SNARF" = "no"; then
1381 AC_MSG_ERROR([guile-snarf not found])
1386 if test "${with_sound}" != "no"; then
1387 # Sound support for GNU/Linux, the free BSDs, and MinGW.
1388 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h],
1389 have_sound_header=yes, [], [
1391 #define WIN32_LEAN_AND_MEAN
1392 #include <windows.h>
1395 test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
1396 AC_MSG_ERROR([OSS sound support requested but not found.])
1398 if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
1399 # Emulation library used on NetBSD.
1400 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1401 test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
1402 AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
1403 dnl FIXME? If we did find ossaudio, should we set with_sound=bsd-ossaudio?
1404 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1408 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1410 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1411 EMACS_CHECK_MODULES([ALSA], [$ALSA_MODULES])
1412 if test $HAVE_ALSA = yes; then
1413 SAVE_CFLAGS="$CFLAGS"
1415 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1416 LIBS="$ALSA_LIBS $LIBS"
1417 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1418 emacs_alsa_normal=yes,
1419 emacs_alsa_normal=no)
1420 if test "$emacs_alsa_normal" != yes; then
1421 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1422 [[snd_lib_error_set_handler (0);]])],
1423 emacs_alsa_subdir=yes,
1424 emacs_alsa_subdir=no)
1425 if test "$emacs_alsa_subdir" != yes; then
1426 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1428 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1431 CFLAGS="$SAVE_CFLAGS"
1433 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1434 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1435 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1436 elif test "${with_sound}" = "alsa"; then
1437 AC_MSG_ERROR([ALSA sound support requested but not found.])
1439 fi dnl with_sound = alsa|yes
1441 dnl Define HAVE_SOUND if we have sound support. We know it works and
1442 dnl compiles only on the specified platforms. For others, it
1443 dnl probably doesn't make sense to try.
1444 dnl FIXME So surely we should bypass this whole section if not using
1445 dnl one of these platforms?
1446 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1448 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1449 dnl Adjust the --with-sound help text if you change this.
1450 gnu-linux|freebsd|netbsd|mingw32)
1451 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1457 AC_SUBST(CFLAGS_SOUND)
1460 dnl checks for header files
1461 AC_CHECK_HEADERS_ONCE(
1465 sys/utsname.h pwd.h utmp.h util.h)
1467 AC_MSG_CHECKING(if personality LINUX32 can be set)
1468 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1469 emacs_cv_personality_linux32=yes,
1470 emacs_cv_personality_linux32=no)
1471 AC_MSG_RESULT($emacs_cv_personality_linux32)
1473 if test $emacs_cv_personality_linux32 = yes; then
1474 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1475 [Define to 1 if personality LINUX32 can be set.])
1478 dnl On Solaris 8 there's a compilation warning for term.h because
1479 dnl it doesn't define `bool'.
1480 AC_CHECK_HEADERS(term.h, , , -)
1482 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1484 if test $ac_cv_have_decl_sys_siglist != yes; then
1485 # For Tru64, at least:
1486 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1491 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1492 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1493 #if HAVE_SYS_SOCKET_H
1494 #include <sys/socket.h>
1496 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1497 #if HAVE_SYS_SOCKET_H
1498 #include <sys/socket.h>
1500 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1501 #if HAVE_SYS_SOCKET_H
1502 #include <sys/socket.h>
1505 dnl checks for structure members
1506 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1507 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1508 struct ifreq.ifr_addr,
1509 struct ifreq.ifr_addr.sa_len], , ,
1510 [AC_INCLUDES_DEFAULT
1511 #if HAVE_SYS_SOCKET_H
1512 #include <sys/socket.h>
1518 dnl Check for endianness.
1519 dnl AC_C_BIGENDIAN is done by gnulib.
1521 dnl check for Make feature
1526 dnl check if we have GCC and autodepend is on.
1527 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1528 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1529 SAVE_CFLAGS="$CFLAGS"
1530 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1531 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1532 CFLAGS="$SAVE_CFLAGS"
1533 test -f deps.d || ac_enable_autodepend=no
1535 AC_MSG_RESULT([$ac_enable_autodepend])
1536 if test $ac_enable_autodepend = yes; then
1537 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1538 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1539 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1540 deps_frag=autodeps.mk
1543 lwlib_deps_frag=$srcdir/lwlib/$deps_frag
1544 oldxmenu_deps_frag=$srcdir/oldXMenu/$deps_frag
1545 deps_frag=$srcdir/src/$deps_frag
1548 AC_SUBST_FILE(deps_frag)
1549 AC_SUBST_FILE(lwlib_deps_frag)
1550 AC_SUBST_FILE(oldxmenu_deps_frag)
1552 lisp_frag=$srcdir/src/lisp.mk
1553 AC_SUBST_FILE(lisp_frag)
1556 dnl checks for operating system services
1557 AC_SYS_LONG_FILE_NAMES
1559 #### Choose a window system.
1561 ## We leave window_system equal to none if
1562 ## we end up building without one. Any new window system should
1563 ## set window_system to an appropriate value and add objects to
1564 ## window-system-specific substs.
1568 if test "$no_x" != yes; then
1572 LD_SWITCH_X_SITE_RPATH=
1573 if test "${x_libraries}" != NONE; then
1574 if test -n "${x_libraries}"; then
1575 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1576 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1578 x_default_search_path=""
1579 x_search_path=${x_libraries}
1580 if test -z "${x_search_path}"; then
1581 x_search_path=/usr/lib
1583 for x_library in `echo ${x_search_path}: | \
1584 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1586 ${x_library}/X11/%L/%T/%N%C%S:\
1587 ${x_library}/X11/%l/%T/%N%C%S:\
1588 ${x_library}/X11/%T/%N%C%S:\
1589 ${x_library}/X11/%L/%T/%N%S:\
1590 ${x_library}/X11/%l/%T/%N%S:\
1591 ${x_library}/X11/%T/%N%S"
1592 if test x"${x_default_search_path}" = x; then
1593 x_default_search_path=${x_search_path}
1595 x_default_search_path="${x_search_path}:${x_default_search_path}"
1599 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1601 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1602 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1605 if test x"${x_includes}" = x; then
1606 bitmapdir=/usr/include/X11/bitmaps
1608 # accumulate include directories that have X11 bitmap subdirectories
1610 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1611 if test -d "${bmd}/X11/bitmaps"; then
1612 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1614 if test -d "${bmd}/bitmaps"; then
1615 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1618 if test ${bmd_acc} != "dummyval"; then
1619 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1626 tmp_CPPFLAGS="$CPPFLAGS"
1627 tmp_CFLAGS="$CFLAGS"
1628 CPPFLAGS="$CPPFLAGS -x objective-c"
1629 CFLAGS="$CFLAGS -x objective-c"
1632 if test "${with_ns}" != no; then
1633 if test "${opsys}" = darwin; then
1635 ns_appdir=`pwd`/nextstep/Emacs.app
1636 ns_appbindir=${ns_appdir}/Contents/MacOS
1637 ns_appresdir=${ns_appdir}/Contents/Resources
1638 ns_appsrc=Cocoa/Emacs.base
1639 elif test -f $GNUSTEP_CONFIG_FILE; then
1641 ns_appdir=`pwd`/nextstep/Emacs.app
1642 ns_appbindir=${ns_appdir}
1643 ns_appresdir=${ns_appdir}/Resources
1644 ns_appsrc=GNUstep/Emacs.base
1645 dnl FIXME sourcing this several times in subshells seems inefficient.
1646 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1647 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1648 dnl I seemed to need these as well with GNUstep-startup 0.25.
1649 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1650 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1651 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1652 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1653 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1654 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1655 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1656 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1657 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1658 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1659 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1660 dnl If they had chosen to either define it or not, we could have
1661 dnl just used AC_CHECK_DECL here.
1662 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1663 emacs_cv_objc_exceptions,
1664 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1665 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1669 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1670 if test $emacs_cv_objc_exceptions = yes; then
1671 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1672 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1673 [Define if GNUstep uses ObjC exceptions.])
1674 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1678 dnl This is only used while we test the NS headers, it gets reset below.
1679 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1681 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1682 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1683 files are missing or cannot be compiled.])])
1686 if test "${NS_IMPL_COCOA}" = "yes"; then
1687 AC_MSG_CHECKING([for OSX 10.4 or newer])
1688 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1690 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1691 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
1694 error "OSX 10.4 or newer required";
1698 ns_osx_have_104=yes,
1700 AC_MSG_RESULT([$ns_osx_have_104])
1702 if test $ns_osx_have_104 = no; then
1703 AC_MSG_ERROR([`OSX 10.4 or newer is required']);
1705 AC_MSG_CHECKING([for OSX 10.5 or newer])
1706 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1708 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1709 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1050
1712 error "OSX 10.5 not found";
1716 ns_osx_have_105=yes,
1718 AC_MSG_RESULT([$ns_osx_have_105])
1719 if test $ns_osx_have_105 = yes; then
1720 macfont_file="macfont.o"
1723 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1725 ns_have_nsinteger=yes,
1726 ns_have_nsinteger=no)
1727 if test $ns_have_nsinteger = yes; then
1728 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1732 AC_SUBST(LIBS_GNUSTEP)
1734 INSTALL_ARCH_INDEP_EXTRA=install-etc
1735 ns_self_contained=no
1738 if test "${HAVE_NS}" = yes; then
1739 if test "$with_toolkit_scroll_bars" = "no"; then
1740 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1743 window_system=nextstep
1744 # set up packaging dirs
1745 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1746 ns_self_contained=yes
1747 prefix=${ns_appresdir}
1748 exec_prefix=${ns_appbindir}
1749 dnl This one isn't really used, only archlibdir is.
1750 libexecdir="\${ns_appbindir}/libexec"
1751 archlibdir="\${ns_appbindir}/libexec"
1752 etcdocdir="\${ns_appresdir}/etc"
1753 etcdir="\${ns_appresdir}/etc"
1754 dnl FIXME maybe set datarootdir instead.
1755 dnl That would also get applications, icons, man.
1756 infodir="\${ns_appresdir}/info"
1757 mandir="\${ns_appresdir}/man"
1758 lispdir="\${ns_appresdir}/lisp"
1759 INSTALL_ARCH_INDEP_EXTRA=
1762 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o $macfont_file"
1764 CFLAGS="$tmp_CFLAGS"
1765 CPPFLAGS="$tmp_CPPFLAGS"
1766 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1767 AC_SUBST(ns_self_contained)
1769 AC_SUBST(NS_OBJC_OBJ)
1780 if test "${with_w32}" != no; then
1783 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1784 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1785 cannot be found.])])
1788 ## Using --with-w32 with MinGW is a no-op, but we allow it.
1791 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
1796 if test "${opsys}" = "mingw32"; then
1797 AC_MSG_CHECKING([whether Windows API headers are recent enough])
1798 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1799 #include <windows.h>
1800 #include <usp10.h>]],
1801 [[PIMAGE_NT_HEADERS pHeader;
1802 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
1803 [emacs_cv_w32api=yes
1806 AC_MSG_RESULT($emacs_cv_w32api)
1807 if test "${emacs_cv_w32api}" = "no"; then
1808 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
1819 if test "${HAVE_W32}" = "yes"; then
1820 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1821 AC_CHECK_TOOL(WINDRES, [windres],
1822 [AC_MSG_ERROR([No resource compiler found.])])
1823 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1824 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1825 EMACSRES="emacs.res"
1826 case "$canonical" in
1827 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
1828 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
1830 if test "${opsys}" = "cygwin"; then
1831 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1832 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1833 # Tell the linker that emacs.res is an object (which we compile from
1834 # the rc file), not a linker script.
1835 W32_RES_LINK="-Wl,emacs.res"
1837 UPDATE_MANIFEST=update-game-score.exe.manifest
1838 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
1839 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
1840 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
1841 W32_RES_LINK="\$(EMACSRES)"
1842 CLIENTRES="emacsclient.res"
1843 CLIENTW="emacsclientw\$(EXEEXT)"
1844 FIRSTFILE_OBJ=firstfile.o
1847 LIBS_ECLIENT="-lcomctl32"
1848 LIB_WSOCK32="-lwsock32"
1849 NTLIB="ntlib.$ac_objext"
1850 XARGS_LIMIT="-s 10000"
1856 AC_SUBST(EMACS_MANIFEST)
1857 AC_SUBST(UPDATE_MANIFEST)
1860 AC_SUBST(W32_RES_LINK)
1861 AC_SUBST(FIRSTFILE_OBJ)
1864 AC_SUBST(LIBS_ECLIENT)
1865 AC_SUBST(LIB_WSOCK32)
1867 AC_SUBST(XARGS_LIMIT)
1869 if test "${HAVE_W32}" = "yes"; then
1874 ## $window_system is now set to the window system we will
1877 if test "$window_system" = none && test "$gl_gcc_warnings" = yes; then
1878 # Too many warnings for now.
1880 nw="$nw -Wsuggest-attribute=const"
1881 nw="$nw -Wsuggest-attribute=noreturn"
1882 gl_MANYWARN_COMPLEMENT([WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
1884 gl_WARN_ADD([-Wno-unused-variable])
1885 gl_WARN_ADD([-Wno-unused-but-set-variable])
1886 gl_WARN_ADD([-Wno-unused-but-set-parameter])
1894 case "${window_system}" in
1899 case "${with_x_toolkit}" in
1900 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1901 motif ) USE_X_TOOLKIT=MOTIF ;;
1903 term_header=gtkutil.h
1904 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1905 dnl USE_X_TOOLKIT is set.
1906 USE_X_TOOLKIT=none ;;
1907 gtk2 ) with_gtk2=yes
1908 term_header=gtkutil.h
1909 USE_X_TOOLKIT=none ;;
1910 gtk3 ) with_gtk3=yes
1911 term_header=gtkutil.h
1912 USE_X_TOOLKIT=none ;;
1913 no ) USE_X_TOOLKIT=none ;;
1914 dnl If user did not say whether to use a toolkit, make this decision later:
1915 dnl use the toolkit if we have gtk, or X11R5 or newer.
1916 * ) USE_X_TOOLKIT=maybe ;;
1920 term_header=nsterm.h
1923 term_header=w32term.h
1927 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1928 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1929 if test "$HAVE_XSERVER" = true ||
1930 test -n "$DISPLAY" ||
1931 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1932 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1933 were found. You should install the relevant development files for X
1934 and for the toolkit you want, such as Gtk+ or Motif. Also make
1935 sure you have development files for image handling, i.e.
1936 tiff, gif, jpeg, png and xpm.
1937 If you are sure you want Emacs compiled without X window support, pass
1943 # Does the opsystem file prohibit the use of the GNU malloc?
1944 # Assume not, until told otherwise.
1948 [whether malloc is Doug Lea style],
1949 [emacs_cv_var_doug_lea_malloc],
1950 [emacs_cv_var_doug_lea_malloc=no
1951 dnl Hooks do not work with address sanitization.
1952 if test "$emacs_cv_sanitize_address" != yes; then
1955 [[#include <malloc.h>
1956 static void hook (void) {}]],
1957 [[malloc_set_state (malloc_get_state ());
1958 __after_morecore_hook = hook;
1959 __malloc_initialize_hook = hook;]])],
1960 [emacs_cv_var_doug_lea_malloc=yes])])
1962 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1964 system_malloc=$emacs_cv_sanitize_address
1966 ## darwin ld insists on the use of malloc routines in the System framework.
1967 darwin|mingw32|sol2-10) system_malloc=yes ;;
1971 if test "${system_malloc}" = "yes"; then
1972 AC_DEFINE([SYSTEM_MALLOC], 1,
1973 [Define to 1 to use the system memory allocator, even if it is not
1977 (The GNU allocators don't work with this system configuration.)"
1980 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1981 VMLIMIT_OBJ=vm-limit.o
1983 AC_CHECK_HEADERS([sys/vlimit.h])
1984 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
1987 [[extern char data_start[]; char ch;]],
1988 [[return data_start < &ch;]])],
1989 [emacs_cv_data_start=yes],
1990 [emacs_cv_data_start=no])])
1991 if test $emacs_cv_data_start = yes; then
1992 AC_DEFINE([HAVE_DATA_START], 1,
1993 [Define to 1 if data_start is the address of the start
1994 of the main data segment.])
1997 AC_SUBST(GMALLOC_OBJ)
1998 AC_SUBST(VMLIMIT_OBJ)
2000 if test "$doug_lea_malloc" = "yes" ; then
2001 if test "$GNU_MALLOC" = yes ; then
2003 (Using Doug Lea's new malloc from the GNU C Library.)"
2005 AC_DEFINE(DOUG_LEA_MALLOC, 1,
2006 [Define to 1 if the system memory allocator is Doug Lea style,
2007 with malloc hooks and malloc_set_state.])
2009 ## Use mmap directly for allocating larger buffers.
2010 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
2011 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
2012 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
2014 mingw32|gnu*) REL_ALLOC=no ;;
2018 if test x"${REL_ALLOC}" = x; then
2019 REL_ALLOC=${GNU_MALLOC}
2022 use_mmap_for_buffers=no
2024 cygwin|mingw32|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
2028 if test $use_mmap_for_buffers = yes; then
2029 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
2033 LIBS="$LIBS_SYSTEM $LIBS"
2035 dnl FIXME replace main with a function we actually want from this library.
2036 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
2038 dnl Check for the POSIX thread library.
2040 if test "$opsys" != "mingw32"; then
2041 AC_CHECK_HEADERS_ONCE(pthread.h)
2042 if test "$ac_cv_header_pthread_h"; then
2043 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
2044 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
2045 dnl testing for pthread_kill if Emacs uses gmalloc.c.
2046 if test "$GMALLOC_OBJ" = gmalloc.o; then
2047 emacs_pthread_function=pthread_atfork
2049 emacs_pthread_function=pthread_kill
2052 AC_SEARCH_LIBS([$emacs_pthread_function], [pthread],
2053 [AC_DEFINE([HAVE_PTHREAD], [1],
2054 [Define to 1 if you have pthread (-lpthread).])
2055 # Some systems optimize for single-threaded programs by default, and
2056 # need special flags to disable these optimizations. For example, the
2057 # definition of 'errno' in <errno.h>.
2060 AC_DEFINE([_REENTRANT], 1,
2061 [Define to 1 if your system requires this in multithreaded code.]);;
2063 AC_DEFINE([_THREAD_SAFE], 1,
2064 [Define to 1 if your system requires this in multithreaded code.]);;
2066 if test "X$LIBS" != "X$OLD_LIBS"; then
2067 eval LIB_PTHREAD=\$ac_cv_search_$emacs_pthread_function
2071 AC_SUBST([LIB_PTHREAD])
2074 dnl Check for need for bigtoc support on IBM AIX
2078 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
2080 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
2081 *) gdb_cv_bigtoc=-bbigtoc ;;
2084 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
2085 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
2090 # Change CFLAGS, CPPFLAGS, and LIBS temporarily so that C_SWITCH_X_SITE
2091 # is for the tests that follow. We set them back later on.
2093 REAL_CFLAGS="$CFLAGS"
2094 REAL_CPPFLAGS="$CPPFLAGS"
2097 if test "${HAVE_X11}" = "yes"; then
2098 DEFS="$C_SWITCH_X_SITE $DEFS"
2099 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2101 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2102 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2104 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2105 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2106 # but it's more convenient here to set LD_RUN_PATH since this
2107 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2108 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2109 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2113 if test "${opsys}" = "gnu-linux"; then
2114 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2115 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2116 [[XOpenDisplay ("foo");]])],
2117 [xgnu_linux_first_failure=no],
2118 [xgnu_linux_first_failure=yes])
2119 if test "${xgnu_linux_first_failure}" = "yes"; then
2120 OLD_CPPFLAGS="$CPPFLAGS"
2122 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2123 LIBS="$LIBS -b i486-linuxaout"
2124 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2125 [[XOpenDisplay ("foo");]])],
2126 [xgnu_linux_second_failure=no],
2127 [xgnu_linux_second_failure=yes])
2128 if test "${xgnu_linux_second_failure}" = "yes"; then
2129 # If we get the same failure with -b, there is no use adding -b.
2130 # So leave it out. This plays safe.
2133 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2134 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2137 CPPFLAGS=$OLD_CPPFLAGS
2144 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2145 # header files included from there.
2146 AC_MSG_CHECKING(for Xkb)
2147 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2148 #include <X11/XKBlib.h>]],
2149 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2150 emacs_xkb=yes, emacs_xkb=no)
2151 AC_MSG_RESULT($emacs_xkb)
2152 if test $emacs_xkb = yes; then
2153 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2156 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2157 XScreenNumberOfScreen)
2160 if test "${window_system}" = "x11"; then
2161 AC_MSG_CHECKING(X11 version 6)
2162 AC_CACHE_VAL(emacs_cv_x11_version_6,
2163 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2164 [[#if XlibSpecificationRelease < 6
2167 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2168 if test $emacs_cv_x11_version_6 = yes; then
2169 AC_MSG_RESULT(6 or newer)
2170 AC_DEFINE(HAVE_X11R6, 1,
2171 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2172 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2173 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2177 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2178 [Define if you have usable X11R6-style XIM support.])
2182 AC_MSG_RESULT(before 6)
2187 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
2189 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2190 if test "${with_rsvg}" != "no"; then
2191 RSVG_REQUIRED=2.11.0
2192 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2194 EMACS_CHECK_MODULES([RSVG], [$RSVG_MODULE])
2195 AC_SUBST(RSVG_CFLAGS)
2198 if test $HAVE_RSVG = yes; then
2199 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2200 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2201 # Windows loads librsvg dynamically
2202 if test "${opsys}" = "mingw32"; then
2210 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${HAVE_W32}" = "yes"; then
2211 if test "${with_imagemagick}" != "no"; then
2212 ## 6.3.5 is the earliest version known to work; see Bug#17339.
2213 ## 6.8.2 makes Emacs crash; see Bug#13867.
2214 IMAGEMAGICK_MODULE="Wand >= 6.3.5 Wand != 6.8.2"
2215 EMACS_CHECK_MODULES([IMAGEMAGICK], [$IMAGEMAGICK_MODULE])
2216 AC_SUBST(IMAGEMAGICK_CFLAGS)
2217 AC_SUBST(IMAGEMAGICK_LIBS)
2219 if test $HAVE_IMAGEMAGICK = yes; then
2220 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2223 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2224 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2225 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
2235 gtk_term_header=$term_header
2238 if test "${opsys}" != "mingw32"; then
2239 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2242 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2244 dnl Checks for libraries.
2245 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2246 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2247 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2248 AC_MSG_ERROR($GTK_PKG_ERRORS)
2250 if test "$pkg_check_gtk" = "yes"; then
2251 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2252 GTK_OBJ=emacsgtkfixed.o
2253 gtk_term_header=gtkutil.h
2254 USE_GTK_TOOLKIT="GTK3"
2255 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2256 AC_DEFINE([GDK_DISABLE_DEPRECATION_WARNINGS], [1],
2257 [Define to 1 to disable GTK+/GDK deprecation warnings.])
2258 AC_DEFINE([GLIB_DISABLE_DEPRECATION_WARNINGS], [1],
2259 [Define to 1 to disable Glib deprecation warnings.])
2263 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2267 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2270 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2272 dnl Checks for libraries.
2273 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2274 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2275 if test "$pkg_check_gtk" = "no" &&
2276 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2278 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2280 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2287 if test x"$pkg_check_gtk" = xyes; then
2290 CFLAGS="$CFLAGS $GTK_CFLAGS"
2291 LIBS="$GTK_LIBS $LIBS"
2292 dnl Try to compile a simple GTK program.
2293 AC_MSG_CHECKING([whether GTK compiles])
2297 [[/* Check the Gtk and Glib APIs. */
2298 #include <gtk/gtk.h>
2299 #include <glib-object.h>
2301 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2305 GtkSettings *gs = 0;
2306 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2307 strict C prohibits this. Use gtk_main_iteration to test that the
2308 libraries are there. */
2309 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2310 0, 0, 0, G_CALLBACK (callback), 0))
2311 gtk_main_iteration ();
2314 AC_MSG_RESULT([$GTK_COMPILES])
2315 if test "${GTK_COMPILES}" != "yes"; then
2317 if test "$USE_X_TOOLKIT" != "maybe"; then
2318 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2321 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2323 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2324 GTK_OBJ="gtkutil.o $GTK_OBJ"
2325 term_header=$gtk_term_header
2327 if "$PKG_CONFIG" --atleast-version=2.10 gtk+-2.0; then
2330 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2331 closing open displays. This is no problem if you just use
2332 one display, but if you use more than one and close one of them
2342 if test "${HAVE_GTK}" = "yes"; then
2344 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2345 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2346 if test "$with_toolkit_scroll_bars" != no; then
2347 with_toolkit_scroll_bars=yes
2350 dnl Check if we have the old file selection dialog declared and
2351 dnl in the link library. In 2.x it may be in the library,
2352 dnl but not declared if deprecated featured has been selected out.
2353 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2354 HAVE_GTK_FILE_SELECTION=no
2355 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2356 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2357 #include <gtk/gtk.h>])
2358 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2359 AC_CHECK_FUNCS(gtk_file_selection_new)
2362 dnl Same as above for gtk_handle_box.
2363 HAVE_GTK_HANDLE_BOX=no
2364 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2365 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2366 #include <gtk/gtk.h>])
2367 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2368 AC_CHECK_FUNCS(gtk_handle_box_new)
2371 dnl Same as above for gtk_tearoff_menu_item.
2372 HAVE_GTK_TEAROFF_MENU_ITEM=no
2373 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2374 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2375 #include <gtk/gtk.h>])
2376 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2377 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2380 dnl Check for functions introduced in 2.14 and later.
2381 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2382 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2383 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2384 gtk_orientable_set_orientation \
2385 gtk_window_set_has_resize_grip)
2387 term_header=gtkutil.h
2393 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2394 dnl other platforms.
2397 if test "${with_dbus}" = "yes"; then
2398 EMACS_CHECK_MODULES([DBUS], [dbus-1 >= 1.0])
2399 if test "$HAVE_DBUS" = yes; then
2400 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2401 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2402 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2405 LIBS="$LIBS $DBUS_LIBS"
2406 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2407 dbus_type_is_valid \
2408 dbus_validate_bus_name \
2409 dbus_validate_path \
2410 dbus_validate_interface \
2411 dbus_validate_member)
2416 AC_SUBST(DBUS_CFLAGS)
2420 dnl GSettings has been tested under GNU/Linux only.
2422 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2423 EMACS_CHECK_MODULES([GSETTINGS], [gio-2.0 >= 2.26])
2424 if test "$HAVE_GSETTINGS" = "yes"; then
2426 CFLAGS="$CFLAGS $GSETTINGS_CFLAGS"
2428 LIBS="$LIBS $GSETTINGS_LIBS"
2429 AC_MSG_CHECKING([whether GSettings is in gio])
2432 [[/* Check that gsettings really is present. */
2433 #include <glib-object.h>
2434 #include <gio/gio.h>
2437 GSettings *settings;
2438 GVariant *val = g_settings_get_value (settings, "");
2440 [], HAVE_GSETTINGS=no)
2441 AC_MSG_RESULT([$HAVE_GSETTINGS])
2443 if test "$HAVE_GSETTINGS" = "yes"; then
2444 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2445 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2446 SETTINGS_LIBS="$GSETTINGS_LIBS"
2453 dnl GConf has been tested under GNU/Linux only.
2454 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2456 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2457 EMACS_CHECK_MODULES([GCONF], [gconf-2.0 >= 2.13])
2458 if test "$HAVE_GCONF" = yes; then
2459 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2460 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2461 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2462 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2466 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2467 EMACS_CHECK_MODULES([GOBJECT], [gobject-2.0 >= 2.0])
2468 if test "$HAVE_GOBJECT" = "yes"; then
2469 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2470 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2472 SAVE_CFLAGS="$CFLAGS"
2474 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2475 LIBS="$SETTINGS_LIBS $LIBS"
2476 CFLAGS="$SAVE_CFLAGS"
2479 AC_SUBST(SETTINGS_CFLAGS)
2480 AC_SUBST(SETTINGS_LIBS)
2483 dnl SELinux is available for GNU/Linux only.
2486 if test "${with_selinux}" = "yes"; then
2487 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2488 if test "$HAVE_LIBSELINUX" = yes; then
2489 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2490 LIBSELINUX_LIBS=-lselinux
2493 AC_SUBST(LIBSELINUX_LIBS)
2497 if test "${with_gnutls}" = "yes" ; then
2498 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 3.0.0],
2499 [HAVE_GNUTLS3=yes], [HAVE_GNUTLS3=no])
2500 if test "${HAVE_GNUTLS3}" = "yes"; then
2501 AC_DEFINE(HAVE_GNUTLS3, 1, [Define if using GnuTLS v3.])
2504 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6],
2505 [HAVE_GNUTLS=yes], [HAVE_GNUTLS=no])
2507 if test "${HAVE_GNUTLS}" = "yes"; then
2508 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2511 # Windows loads GnuTLS dynamically
2512 if test "${opsys}" = "mingw32"; then
2517 AC_SUBST(LIBGNUTLS_LIBS)
2518 AC_SUBST(LIBGNUTLS_CFLAGS)
2523 dnl FIXME? Don't auto-detect on NS, but do allow someone to specify
2524 dnl a particular library. This doesn't make much sense?
2525 if test "${with_ns}" = yes && test ${with_file_notification} = yes; then
2526 with_file_notification=no
2529 dnl MS Windows native file monitor is available for mingw32 only.
2530 case $with_file_notification,$opsys in
2531 w32,* | yes,mingw32)
2532 AC_CHECK_HEADER(windows.h)
2533 if test "$ac_cv_header_windows_h" = yes ; then
2534 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2535 NOTIFY_OBJ=w32notify.o
2536 NOTIFY_SUMMARY="yes (w32)"
2540 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2541 dnl has been added in glib 2.24. It has been tested under
2542 dnl GNU/Linux only. We take precedence over inotify, but this makes
2543 dnl only sense when glib has been compiled with inotify support. How
2545 case $with_file_notification,$NOTIFY_OBJ in
2547 EMACS_CHECK_MODULES([GFILENOTIFY], [gio-2.0 >= 2.24])
2548 if test "$HAVE_GFILENOTIFY" = "yes"; then
2549 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2550 NOTIFY_OBJ=gfilenotify.o
2551 NOTIFY_SUMMARY="yes -lgio (gfile)"
2555 dnl inotify is only available on GNU/Linux.
2556 case $with_file_notification,$NOTIFY_OBJ in
2558 AC_CHECK_HEADER(sys/inotify.h)
2559 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2560 AC_CHECK_FUNC(inotify_init1)
2561 if test "$ac_cv_func_inotify_init1" = yes; then
2562 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2563 NOTIFY_OBJ=inotify.o
2564 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2569 case $with_file_notification,$NOTIFY_OBJ in
2570 yes,* | no,* | *,?*) ;;
2571 *) AC_MSG_ERROR([File notification `$with_file_notification' requested but requirements not found.]) ;;
2574 if test -n "$NOTIFY_OBJ"; then
2575 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2577 AC_SUBST(NOTIFY_OBJ)
2578 AC_SUBST(GFILENOTIFY_CFLAGS)
2579 AC_SUBST(GFILENOTIFY_LIBS)
2581 dnl Do not put whitespace before the #include statements below.
2582 dnl Older compilers (eg sunos4 cc) choke on it.
2585 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2586 if test "$with_xaw3d" != no; then
2587 AC_CACHE_VAL(emacs_cv_xaw3d,
2588 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2589 #include <X11/Intrinsic.h>
2590 #include <X11/Xaw3d/Simple.h>]],
2592 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2593 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2594 emacs_cv_xaw3d=no)])
2598 if test $emacs_cv_xaw3d = yes; then
2599 AC_MSG_CHECKING(for xaw3d)
2600 AC_MSG_RESULT([yes; using Lucid toolkit])
2604 AC_DEFINE(HAVE_XAW3D, 1,
2605 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2607 AC_MSG_CHECKING(for xaw3d)
2609 AC_MSG_CHECKING(for libXaw)
2610 AC_CACHE_VAL(emacs_cv_xaw,
2611 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2612 #include <X11/Intrinsic.h>
2613 #include <X11/Xaw/Simple.h>]],
2617 if test $emacs_cv_xaw = yes; then
2618 AC_MSG_RESULT([yes; using Lucid toolkit])
2621 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2622 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2624 AC_MSG_ERROR([No X toolkit could be found.
2625 If you are sure you want Emacs compiled without an X toolkit, pass
2627 to configure. Otherwise, install the development libraries for the toolkit
2628 that you want to use (e.g. Gtk+) and re-run configure.])
2633 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2637 if test "${USE_X_TOOLKIT}" != "none"; then
2638 AC_MSG_CHECKING(X11 toolkit version)
2639 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2640 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2641 [[#if XtSpecificationRelease < 6
2644 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2645 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2646 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2647 AC_MSG_RESULT(6 or newer)
2648 AC_DEFINE(HAVE_X11XTR6, 1,
2649 [Define to 1 if you have the X11R6 or newer version of Xt.])
2650 LIBXTR6="-lSM -lICE"
2652 ## Use libw.a along with X11R6 Xt.
2653 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2656 AC_MSG_RESULT(before 6)
2659 dnl If using toolkit, check whether libXmu.a exists.
2660 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2662 if test x$HAVE_X11XTR6 = xyes; then
2663 OTHERLIBS='-lXt -lSM -lICE'
2667 AC_SEARCH_LIBS([XmuConvertStandardSelection], [Xmu], [], [], [$OTHERLIBS])
2668 if test "X$LIBS" != "X$OLDLIBS"; then
2669 LIBXMU=$ac_cv_search_XmuConvertStandardSelection
2672 dnl ac_cv_search_XmuConvertStandardSelection is also referenced below.
2678 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2679 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2680 if test -d /usr/include/openmotif; then
2681 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2682 emacs_cv_openmotif=yes
2683 case "$canonical" in
2684 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2685 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2688 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2691 emacs_cv_openmotif=no
2693 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2694 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2695 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2698 Motif version prior to 2.1.
2700 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2701 if test $emacs_cv_motif_version_2_1 = yes; then
2702 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2703 if test x$emacs_cv_openmotif = xyes; then
2704 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2707 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2708 # We put this in CFLAGS temporarily to precede other -I options
2709 # that might be in CFLAGS temporarily.
2710 # We put this in CPPFLAGS where it precedes the other -I options.
2711 OLD_CPPFLAGS=$CPPFLAGS
2713 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2714 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2715 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2717 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2718 if test $emacs_cv_lesstif = yes; then
2719 # Make sure this -I option remains in CPPFLAGS after it is set
2720 # back to REAL_CPPFLAGS.
2721 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2722 # have those other -I options anyway. Ultimately, having this
2723 # directory ultimately in CPPFLAGS will be enough.
2724 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2725 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2728 CPPFLAGS=$OLD_CPPFLAGS
2731 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2732 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2735 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2736 dnl using Motif or Xaw3d is available, and unless
2737 dnl --with-toolkit-scroll-bars=no was specified.
2739 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2740 [Define to 1 if we should use toolkit scroll bars.])dnl
2741 USE_TOOLKIT_SCROLL_BARS=no
2742 if test "${with_toolkit_scroll_bars}" != "no"; then
2743 if test "${USE_X_TOOLKIT}" != "none"; then
2744 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2745 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2747 USE_TOOLKIT_SCROLL_BARS=yes
2748 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2749 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2750 USE_TOOLKIT_SCROLL_BARS=yes
2752 elif test "${HAVE_GTK}" = "yes"; then
2753 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2754 USE_TOOLKIT_SCROLL_BARS=yes
2755 elif test "${HAVE_NS}" = "yes"; then
2756 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2757 USE_TOOLKIT_SCROLL_BARS=yes
2758 elif test "${HAVE_W32}" = "yes"; then
2759 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2760 USE_TOOLKIT_SCROLL_BARS=yes
2764 dnl See if XIM is available.
2765 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2766 #include <X11/Xlib.h>
2767 #include <X11/Xresource.h>]],
2768 [[XIMProc callback;]])],
2770 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2773 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2775 if test "${with_xim}" != "no"; then
2776 AC_DEFINE(USE_XIM, 1,
2777 [Define to 1 if we should use XIM, if it is available.])
2781 if test "${HAVE_XIM}" != "no"; then
2783 if test "$GCC" = yes; then
2784 CFLAGS="$CFLAGS --pedantic-errors"
2786 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2787 #include <X11/Xlib.h>
2788 #include <X11/Xresource.h>]],
2794 XPointer *client_data;
2796 /* If we're not using GCC, it's probably not XFree86, and this is
2797 probably right, but we can't use something like --pedantic-errors. */
2798 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2799 char*, XIMProc, XPointer*);
2801 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2803 [emacs_cv_arg6_star=yes])
2804 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2805 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2806 either XPointer or XPointer*.])dnl
2807 if test "$emacs_cv_arg6_star" = yes; then
2808 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2810 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2815 ### Start of font-backend (under any platform) section.
2816 # (nothing here yet -- this is a placeholder)
2817 ### End of font-backend (under any platform) section.
2819 ### Start of font-backend (under X11) section.
2820 if test "${HAVE_X11}" = "yes"; then
2821 ## Use -lXft if available, unless `--with-xft=no'.
2823 if test "x${with_x}" = "xno"; then
2827 if test "$with_xft" != no; then
2828 EMACS_CHECK_MODULES([FONTCONFIG], [fontconfig >= 2.2.0])
2829 with_xft=$HAVE_FONTCONFIG
2832 if test "x${with_xft}" != "xno"; then
2834 EMACS_CHECK_MODULES([XFT], [xft >= 0.13.0], [], [HAVE_XFT=no])
2835 ## Because xftfont.c uses XRenderQueryExtension, we also
2836 ## need to link to -lXrender.
2838 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2839 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2840 OLD_CPPFLAGS="$CPPFLAGS"
2841 OLD_CFLAGS="$CFLAGS"
2843 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2844 CFLAGS="$CFLAGS $XFT_CFLAGS"
2845 XFT_LIBS="-lXrender $XFT_LIBS"
2846 LIBS="$XFT_LIBS $LIBS"
2847 AC_CHECK_HEADER(X11/Xft/Xft.h,
2848 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
2849 [[#include <X11/X.h>]])
2851 if test "${HAVE_XFT}" = "yes"; then
2852 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2854 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2855 fi # "${HAVE_XFT}" = "yes"
2856 CPPFLAGS=$OLD_CPPFLAGS
2859 fi # "$HAVE_XFT" != no
2860 fi # "x${with_xft}" != "xno"
2862 ## We used to allow building with FreeType and without Xft.
2863 ## However, the ftx font backend driver is not in good shape.
2864 if test "$HAVE_XFT" != "yes"; then
2865 dnl For the "Does Emacs use" message at the end.
2869 dnl Strict linkers fail with
2870 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2871 dnl if -lfreetype is not specified.
2872 dnl The following is needed to set FREETYPE_LIBS.
2873 EMACS_CHECK_MODULES([FREETYPE], [freetype2])
2875 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2879 if test "${HAVE_FREETYPE}" = "yes"; then
2880 AC_DEFINE(HAVE_FREETYPE, 1,
2881 [Define to 1 if using the freetype and fontconfig libraries.])
2882 if test "${with_libotf}" != "no"; then
2883 EMACS_CHECK_MODULES([LIBOTF], [libotf])
2884 if test "$HAVE_LIBOTF" = "yes"; then
2885 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2886 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2887 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2888 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2889 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2890 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2891 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2895 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2896 dnl Does the new font backend require it, or can it work without it?
2900 if test "${HAVE_LIBOTF}" = yes; then
2901 if test "${with_m17n_flt}" != "no"; then
2902 EMACS_CHECK_MODULES([M17N_FLT], [m17n-flt])
2903 if test "$HAVE_M17N_FLT" = "yes"; then
2904 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2915 ### End of font-backend (under X11) section.
2917 AC_SUBST(FREETYPE_CFLAGS)
2918 AC_SUBST(FREETYPE_LIBS)
2919 AC_SUBST(FONTCONFIG_CFLAGS)
2920 AC_SUBST(FONTCONFIG_LIBS)
2921 AC_SUBST(LIBOTF_CFLAGS)
2922 AC_SUBST(LIBOTF_LIBS)
2923 AC_SUBST(M17N_FLT_CFLAGS)
2924 AC_SUBST(M17N_FLT_LIBS)
2926 ### Use -lXpm if available, unless `--with-xpm=no'.
2927 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
2930 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
2931 if test "${with_xpm}" != "no"; then
2932 SAVE_CPPFLAGS="$CPPFLAGS"
2933 SAVE_LDFLAGS="$LDFLAGS"
2934 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
2935 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
2936 AC_CHECK_HEADER(X11/xpm.h,
2937 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
2938 if test "${HAVE_XPM}" = "yes"; then
2939 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2940 AC_EGREP_CPP(no_return_alloc_pixels,
2941 [#include "X11/xpm.h"
2942 #ifndef XpmReturnAllocPixels
2943 no_return_alloc_pixels
2945 ], HAVE_XPM=no, HAVE_XPM=yes)
2947 if test "${HAVE_XPM}" = "yes"; then
2948 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
2952 CPPFLAGS="$SAVE_CPPFLAGS"
2953 LDFLAGS="$SAVE_LDFLAGS"
2958 if test "${HAVE_XPM}" = "yes"; then
2959 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2964 if test "${HAVE_X11}" = "yes"; then
2965 dnl Avoid Xpm on AIX unless requested, as it crashes; see Bug#17598.
2966 test "$opsys$with_xpm_set" = aix4-2 && with_xpm=no
2968 if test "${with_xpm}" != "no"; then
2969 AC_CHECK_HEADER(X11/xpm.h,
2970 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2971 if test "${HAVE_XPM}" = "yes"; then
2972 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2973 AC_EGREP_CPP(no_return_alloc_pixels,
2974 [#include "X11/xpm.h"
2975 #ifndef XpmReturnAllocPixels
2976 no_return_alloc_pixels
2978 ], HAVE_XPM=no, HAVE_XPM=yes)
2980 if test "${HAVE_XPM}" = "yes"; then
2988 if test "${HAVE_XPM}" = "yes"; then
2989 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2991 elif test "$opsys,$LUCID_LIBW" = aix4-2,-lXaw; then
2992 dnl AIX -lXaw needs -lXpm linked too; see Bug#17598 Message#152.
2997 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
2998 ### slightly different requirements wrt image libraries (it doesn't
2999 ### use -lXpm because it loads the xpm shared library dynamically at
3001 if test "${opsys}" = "mingw32"; then
3002 if test "${with_xpm}" != "no"; then
3003 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
3007 if test "${HAVE_XPM}" = "yes"; then
3008 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3014 ### Use -ljpeg if available, unless `--with-jpeg=no'.
3015 ### mingw32 doesn't use -ljpeg, since it loads the library dynamically.
3018 if test "${opsys}" = "mingw32"; then
3019 if test "${with_jpeg}" != "no"; then
3020 dnl Checking for jpeglib.h can lose because of a redefinition of
3022 AC_CHECK_HEADER(jerror.h, HAVE_JPEG=yes, HAVE_JPEG=no)
3024 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
3025 if test "${HAVE_JPEG}" = "yes"; then
3026 AC_DEFINE(HAVE_JPEG)
3027 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
3028 [#include <jpeglib.h>
3029 version=JPEG_LIB_VERSION
3031 [AC_DEFINE(HAVE_JPEG)],
3032 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
3035 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3036 if test "${with_jpeg}" != "no"; then
3037 dnl Checking for jpeglib.h can lose because of a redefinition of
3039 AC_CHECK_HEADER(jerror.h,
3040 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
3043 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
3044 if test "${HAVE_JPEG}" = "yes"; then
3045 AC_DEFINE(HAVE_JPEG)
3046 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
3047 [#include <jpeglib.h>
3048 version=JPEG_LIB_VERSION
3050 [AC_DEFINE(HAVE_JPEG)],
3051 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
3054 if test "${HAVE_JPEG}" = "yes"; then
3062 if test "${with_zlib}" != "no"; then
3064 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
3066 case $ac_cv_search_inflateEnd in
3067 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3070 if test "${HAVE_ZLIB}" = "yes"; then
3071 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3072 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3073 if test "${opsys}" = "mingw32"; then
3079 ### Use -lpng if available, unless `--with-png=no'.
3083 if test "${NS_IMPL_COCOA}" = yes; then
3085 elif test "${with_png}" != no; then
3086 # mingw32 loads the library dynamically.
3087 if test "$opsys" = mingw32; then
3088 AC_CHECK_HEADER([png.h], [HAVE_PNG=yes])
3089 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3090 AC_MSG_CHECKING([for png])
3091 png_cflags=`(libpng-config --cflags) 2>&AS_MESSAGE_LOG_FD` &&
3092 png_libs=`(libpng-config --libs) 2>&AS_MESSAGE_LOG_FD` || {
3093 # libpng-config does not work; configure by hand.
3094 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
3095 # in /usr/include/libpng.
3096 if test -r /usr/include/libpng/png.h &&
3097 test ! -r /usr/include/png.h; then
3098 png_cflags=-I/usr/include/libpng
3106 CFLAGS="$CFLAGS $png_cflags"
3107 LIBS="$png_libs -lz -lm $LIBS"
3109 [AC_LANG_PROGRAM([[#include <png.h>]],
3110 [[return !png_get_channels (0, 0);]])],
3112 PNG_CFLAGS=`AS_ECHO(["$png_cflags"]) | sed -e "$edit_cflags"`
3114 # $LIBPNG requires explicit -lz in some cases.
3115 # We don't know what those cases are, exactly, so play it safe and
3116 # append -lz to any nonempty $LIBPNG, unless we're already using LIBZ.
3117 if test -n "$LIBPNG" && test -z "$LIBZ"; then
3118 LIBPNG="$LIBPNG -lz"
3122 AC_MSG_RESULT([$HAVE_PNG])
3125 if test $HAVE_PNG = yes; then
3126 AC_DEFINE([HAVE_PNG], [1], [Define to 1 if you have the png library.])
3129 CFLAGS="$CFLAGS $PNG_CFLAGS"
3130 AC_CHECK_DECL([png_longjmp],
3132 [AC_DEFINE([PNG_DEPSTRUCT], [],
3133 [Define to empty to suppress deprecation warnings when building
3134 with --enable-gcc-warnings and with libpng versions before 1.5,
3135 which lack png_longjmp.])],
3141 AC_SUBST(PNG_CFLAGS)
3143 ### Use -ltiff if available, unless `--with-tiff=no'.
3144 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3147 if test "${opsys}" = "mingw32"; then
3148 if test "${with_tiff}" != "no"; then
3149 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3151 if test "${HAVE_TIFF}" = "yes"; then
3152 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3154 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3155 if test "${with_tiff}" != "no"; then
3156 AC_CHECK_HEADER(tiffio.h,
3158 # At least one tiff package requires the jpeg library.
3159 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3160 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3163 if test "${HAVE_TIFF}" = "yes"; then
3164 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3165 dnl FIXME -lz -lm, as per libpng?
3171 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
3172 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3175 if test "${opsys}" = "mingw32"; then
3176 if test "${with_gif}" != "no"; then
3177 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3179 if test "${HAVE_GIF}" = "yes"; then
3180 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3182 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3183 || test "${HAVE_W32}" = "yes"; then
3184 AC_CHECK_HEADER(gif_lib.h,
3185 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3186 # Earlier versions can crash Emacs, but version 5.0 removes EGifPutExtensionLast.
3187 [AC_CHECK_LIB(gif, GifMakeMapObject, HAVE_GIF=yes,
3188 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])])
3190 if test "$HAVE_GIF" = yes; then
3192 elif test "$HAVE_GIF" = maybe; then
3193 # If gif_lib.h but no libgif, try libungif.
3194 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3195 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3198 if test "${HAVE_GIF}" = "yes"; then
3199 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3204 dnl Check for required libraries.
3205 if test "${HAVE_X11}" = "yes"; then
3208 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3209 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3210 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3211 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3212 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3213 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3214 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3215 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3216 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3217 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3219 if test "X${MISSING}" != X; then
3220 AC_MSG_ERROR([The following required libraries were not found:
3222 Maybe some development libraries/packages are missing?
3223 If you don't want to link with them give
3225 as options to configure])
3229 ### Use -lgpm if available, unless `--with-gpm=no'.
3232 if test "${with_gpm}" != "no"; then
3233 AC_CHECK_HEADER(gpm.h,
3234 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3236 if test "${HAVE_GPM}" = "yes"; then
3237 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3243 dnl Check for malloc/malloc.h on darwin
3244 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3247 ### Use NeXTstep API to implement GUI.
3248 if test "${HAVE_NS}" = "yes"; then
3249 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
3250 if test "${NS_IMPL_COCOA}" = "yes"; then
3251 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
3253 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3254 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3255 # See also .m.o rule in Makefile.in */
3256 # FIXME: are all these flags really needed? Document here why. */
3257 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3258 ## Extra CFLAGS applied to src/*.m files.
3259 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3264 ### Use session management (-lSM -lICE) if available
3267 if test "${HAVE_X11}" = "yes"; then
3268 AC_CHECK_HEADER(X11/SM/SMlib.h,
3269 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3271 if test "${HAVE_X_SM}" = "yes"; then
3272 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3278 ### Use XRandr (-lXrandr) if available
3280 if test "${HAVE_X11}" = "yes"; then
3281 XRANDR_REQUIRED=1.2.2
3282 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3283 EMACS_CHECK_MODULES([XRANDR], [$XRANDR_MODULES])
3284 if test $HAVE_XRANDR = no; then
3285 # Test old way in case pkg-config doesn't have it (older machines).
3286 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3287 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)])
3288 if test $HAVE_XRANDR = yes; then
3289 XRANDR_LIBS=-lXrandr
3292 if test $HAVE_XRANDR = yes; then
3293 SAVE_CFLAGS="$CFLAGS"
3295 CFLAGS="$XRANDR_CFLAGS $CFLAGS"
3296 LIBS="$XRANDR_LIBS $LIBS"
3297 AC_CHECK_FUNCS(XRRGetOutputPrimary XRRGetScreenResourcesCurrent)
3298 CFLAGS="$SAVE_CFLAGS"
3301 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3304 AC_SUBST(XRANDR_CFLAGS)
3305 AC_SUBST(XRANDR_LIBS)
3307 ### Use Xinerama (-lXinerama) if available
3309 if test "${HAVE_X11}" = "yes"; then
3310 XINERAMA_REQUIRED=1.0.2
3311 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3312 EMACS_CHECK_MODULES([XINERAMA], [$XINERAMA_MODULES])
3313 if test $HAVE_XINERAMA = no; then
3314 # Test old way in case pkg-config doesn't have it (older machines).
3315 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3316 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3317 if test $HAVE_XINERAMA = yes; then
3318 XINERAMA_LIBS=-lXinerama
3321 if test $HAVE_XINERAMA = yes; then
3322 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3325 AC_SUBST(XINERAMA_CFLAGS)
3326 AC_SUBST(XINERAMA_LIBS)
3328 ### Use Xfixes (-lXfixes) if available
3330 if test "${HAVE_X11}" = "yes"; then
3331 XFIXES_REQUIRED=4.0.0
3332 XFIXES_MODULES="xfixes >= $XFIXES_REQUIRED"
3333 EMACS_CHECK_MODULES([XFIXES], [$XFIXES_MODULES])
3334 if test $HAVE_XFIXES = no; then
3335 # Test old way in case pkg-config doesn't have it (older machines).
3336 AC_CHECK_HEADER(X11/extensions/Xfixes.h,
3337 [AC_CHECK_LIB(Xfixes, XFixesHideCursor, HAVE_XFIXES=yes)])
3338 if test $HAVE_XFIXES = yes; then
3339 XFIXES_LIBS=-lXfixes
3342 if test $HAVE_XFIXES = yes; then
3343 AC_DEFINE(HAVE_XFIXES, 1, [Define to 1 if you have the Xfixes extension.])
3346 AC_SUBST(XFIXES_CFLAGS)
3347 AC_SUBST(XFIXES_LIBS)
3349 ### Use libxml (-lxml2) if available
3350 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3352 if test "${with_xml2}" != "no"; then
3353 ### I'm not sure what the version number should be, so I just guessed.
3354 EMACS_CHECK_MODULES([LIBXML2], [libxml-2.0 > 2.6.17])
3355 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3356 if test "${HAVE_LIBXML2}" != "yes" -a "$opsys" = "darwin"; then
3357 SAVE_CPPFLAGS="$CPPFLAGS"
3358 CPPFLAGS="$CPPFLAGS -I$xcsdkdir/usr/include/libxml2"
3359 AC_CHECK_HEADER(libxml/HTMLparser.h,
3360 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3361 [#include <libxml/HTMLparser.h>])])
3362 CPPFLAGS="$SAVE_CPPFLAGS"
3363 if test "${HAVE_LIBXML2}" = "yes"; then
3364 LIBXML2_CFLAGS="-I'$xcsdkdir/usr/include/libxml2'"
3365 LIBXML2_LIBS="-lxml2"
3368 if test "${HAVE_LIBXML2}" = "yes"; then
3369 if test "${opsys}" != "mingw32"; then
3370 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no
3375 if test "${HAVE_LIBXML2}" = "yes"; then
3376 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3383 AC_SUBST(LIBXML2_LIBS)
3384 AC_SUBST(LIBXML2_CFLAGS)
3386 # If netdb.h doesn't declare h_errno, we must declare it by hand.
3387 # On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
3388 if test "${opsys}" = "mingw32"; then
3389 emacs_cv_netdb_declares_h_errno=yes
3391 AC_CACHE_CHECK(whether netdb declares h_errno,
3392 emacs_cv_netdb_declares_h_errno,
3393 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
3394 [[return h_errno;]])],
3395 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
3396 if test $emacs_cv_netdb_declares_h_errno = yes; then
3397 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
3400 # Check for mail-locking functions in a "mail" library. Probably this should
3401 # have the same check as for liblockfile below.
3402 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
3403 if test $have_mail = yes; then
3405 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
3408 LIBS="$LIBS_MAIL $LIBS"
3409 AC_CHECK_FUNCS(touchlock)
3414 dnl Debian, at least:
3415 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
3416 if test $have_lockfile = yes; then
3417 LIBS_MAIL=-llockfile
3418 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
3420 # If we have the shared liblockfile, assume we must use it for mail
3421 # locking (e.g. Debian). If we couldn't link against liblockfile
3422 # (no liblockfile.a installed), ensure that we don't need to.
3423 dnl This works for files generally, not just executables.
3424 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3425 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
3426 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
3427 if test $ac_cv_prog_liblockfile = yes; then
3428 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3429 This probably means that movemail could lose mail.
3430 There may be a `development' package to install containing liblockfile.])
3433 AC_CHECK_HEADERS_ONCE(maillock.h)
3436 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3437 ## interlock access to the mail spool. The alternative is a lock file named
3438 ## /usr/spool/mail/$USER.lock.
3441 aix4-2) mail_lock="lockf" ;;
3443 gnu|freebsd|dragonfly|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
3445 ## On GNU/Linux systems, both methods are used by various mail programs.
3446 ## I assume most people are using newer mailers that have heard of flock.
3447 ## Change this if you need to.
3448 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
3449 ## configure gets the right answers, and that means *NOT* using flock.
3450 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3451 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
3452 ## Debian maintainer hasn't provided a clean fix for Emacs.
3453 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
3454 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3455 ## correct logic. -- fx
3456 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3457 ## liblockfile is a Free Software replacement for libmail, used on
3458 ## Debian systems and elsewhere. -rfr.
3461 if test $have_mail = yes || test $have_lockfile = yes; then
3462 test $ac_cv_header_maillock_h = yes && mail_lock=no
3467 mail_lock="none-needed" ;;
3471 case "$mail_lock" in
3472 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3474 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3478 *) BLESSMAIL_TARGET="need-blessmail" ;;
3480 AC_SUBST(BLESSMAIL_TARGET)
3483 LIBS="$LIB_PTHREAD $LIB_MATH $LIBS"
3484 AC_CHECK_FUNCS(accept4 gethostname \
3485 getrusage get_current_dir_name \
3486 lrand48 random rint \
3487 select getpagesize setlocale \
3488 getrlimit setrlimit shutdown getaddrinfo \
3489 pthread_sigmask strsignal setitimer \
3490 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
3492 getpwent endpwent getgrent endgrent \
3493 cfmakeraw cfsetspeed copysign __executable_start log2)
3496 dnl No need to check for aligned_alloc and posix_memalign if using
3497 dnl gmalloc.o, as it supplies them. Don't use these functions on
3498 dnl Darwin as they are incompatible with unexmacosx.c.
3499 if test -z "$GMALLOC_OBJ" && test "$opsys" != darwin; then
3500 AC_CHECK_FUNCS([aligned_alloc posix_memalign], [break])
3503 dnl Cannot use AC_CHECK_FUNCS
3504 AC_CACHE_CHECK([for __builtin_unwind_init],
3505 emacs_cv_func___builtin_unwind_init,
3506 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3507 emacs_cv_func___builtin_unwind_init=yes,
3508 emacs_cv_func___builtin_unwind_init=no)])
3509 if test $emacs_cv_func___builtin_unwind_init = yes; then
3510 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3511 [Define to 1 if you have the `__builtin_unwind_init' function.])
3514 AC_CHECK_HEADERS_ONCE(sys/un.h)
3519 AC_CHECK_FUNCS(grantpt)
3521 # PTY-related GNU extensions.
3522 AC_CHECK_FUNCS(getpt posix_openpt)
3524 # Check this now, so that we will NOT find the above functions in ncurses.
3525 # That is because we have not set up to link ncurses in lib-src.
3526 # It's better to believe a function is not available
3527 # than to expect to find it in ncurses.
3528 # Also we need tputs and friends to be able to build at all.
3529 AC_MSG_CHECKING([for library containing tputs])
3530 # Run a test program that contains a call to tputs, a call that is
3531 # never executed. This tests whether a pre-'main' dynamic linker
3532 # works with the library. It's too much trouble to actually call
3533 # tputs in the test program, due to portability hassles. When
3534 # cross-compiling, assume the test program will run if it links.
3535 AC_DEFUN([tputs_link_source], [
3537 [[extern void tputs (const char *, int, int (*)(int));
3538 int main (int argc, char **argv)
3541 tputs (argv[0], 0, 0);
3545 if test "${opsys}" = "mingw32"; then
3548 # Maybe curses should be tried earlier?
3549 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3550 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3552 if test -z "$tputs_library"; then
3556 LIBS_TERMCAP=-l$tputs_library
3558 LIBS="$LIBS_TERMCAP $LIBS"
3560 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3561 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3563 if test "X$msg" != Xno; then
3568 AC_MSG_RESULT([$msg])
3569 if test "X$msg" = Xno; then
3570 AC_MSG_ERROR([The required function `tputs' was not found in any library.
3571 The following libraries were tried (in order):
3572 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3573 Please try installing whichever of these libraries is most appropriate
3574 for your system, together with its header files.
3575 For example, a libncurses-dev(el) or similar package.])
3578 ## Use termcap instead of terminfo?
3579 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3581 ## FIXME? In the cases below where we unconditionally set
3582 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3583 ## if that was found above to have tputs.
3584 ## Should we use the gnu* logic everywhere?
3586 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3587 ## The ncurses library has been moved out of the System framework in
3588 ## Mac OS X 10.2. So if configure detects it, set the command-line
3589 ## option to use it.
3590 darwin) LIBS_TERMCAP="-lncurses" ;;
3592 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3595 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3596 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3597 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3598 [[#if __FreeBSD_version < 400000
3601 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3603 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3605 if test $emacs_cv_freebsd_terminfo = yes; then
3606 LIBS_TERMCAP="-lncurses"
3609 LIBS_TERMCAP="-ltermcap"
3619 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3621 LIBS_TERMCAP="-ltermcap"
3625 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
3627 ## hpux: Make sure we get select from libc rather than from libcurses
3628 ## because libcurses on HPUX 10.10 has a broken version of select.
3629 ## We used to use -lc -lcurses, but this may be cleaner.
3630 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3631 # set that way, now it uses the default). Isn't this a contradiction?
3632 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3636 TERMCAP_OBJ=tparam.o
3637 if test $TERMINFO = yes; then
3638 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3639 TERMCAP_OBJ=terminfo.o
3641 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
3642 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
3644 AC_SUBST(LIBS_TERMCAP)
3645 AC_SUBST(TERMCAP_OBJ)
3648 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3649 # On Darwin, res_init appears not to be useful: see bug#562 and
3650 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3653 if test $opsys != darwin; then
3655 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3656 #include <arpa/nameser.h>
3657 #include <resolv.h>]],
3658 [[return res_init();]])],
3659 have_res_init=yes, have_res_init=no)
3660 if test "$have_res_init" = no; then
3662 LIBS="$LIBS -lresolv"
3663 AC_MSG_CHECKING(for res_init with -lresolv)
3664 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3665 #include <arpa/nameser.h>
3666 #include <resolv.h>]],
3667 [[return res_init();]])],
3668 have_res_init=yes, have_res_init=no)
3669 AC_MSG_RESULT($have_res_init)
3670 if test "$have_res_init" = yes ; then
3676 if test "$have_res_init" = yes; then
3677 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3681 # Do we need the Hesiod library to provide the support routines?
3682 dnl FIXME? Should we be skipping this on Darwin too?
3684 if test "$with_hesiod" != no ; then
3685 # Don't set $LIBS here -- see comments above. FIXME which comments?
3686 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3687 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3688 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3689 if test "$resolv" = yes ; then
3694 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3695 hesiod=yes, :, $RESOLVLIB)])
3697 if test x"$hesiod" = xyes; then
3703 # Do we need libresolv (due to res_init or Hesiod)?
3704 if test "$resolv" = yes && test $opsys != darwin; then
3711 # These tell us which Kerberos-related libraries to use.
3718 if test "${with_kerberos}" != no; then
3720 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3721 if test $have_com_err = yes; then
3722 COM_ERRLIB=-lcom_err
3723 LIBS="$COM_ERRLIB $LIBS"
3725 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3726 if test $have_crypto = yes; then
3728 LIBS="$CRYPTOLIB $LIBS"
3730 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3731 if test $have_k5crypto = yes; then
3732 CRYPTOLIB=-lk5crypto
3733 LIBS="$CRYPTOLIB $LIBS"
3735 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3736 if test $have_krb5=yes; then
3738 LIBS="$KRB5LIB $LIBS"
3740 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3741 if test "${with_kerberos5}" = no; then
3742 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3743 if test $have_des425 = yes; then
3745 LIBS="$DESLIB $LIBS"
3747 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3748 if test $have_des = yes; then
3750 LIBS="$DESLIB $LIBS"
3753 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3754 if test $have_krb4 = yes; then
3756 LIBS="$KRB4LIB $LIBS"
3758 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3759 if test $have_krb = yes; then
3761 LIBS="$KRB4LIB $LIBS"
3766 if test "${with_kerberos5}" != no; then
3767 AC_CHECK_HEADERS(krb5.h,
3768 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3769 [#include <krb5.h>])])
3771 AC_CHECK_HEADERS(krb.h,,
3772 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3773 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3775 AC_CHECK_HEADERS(com_err.h)
3779 AC_SUBST(COM_ERRLIB)
3785 AC_CHECK_HEADERS(valgrind/valgrind.h)
3787 AC_CHECK_FUNCS_ONCE(tzset)
3788 AC_MSG_CHECKING(whether localtime caches TZ)
3789 AC_CACHE_VAL(emacs_cv_localtime_cache,
3790 [if test x$ac_cv_func_tzset = xyes; then
3791 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3792 char TZ_GMT0[] = "TZ=GMT0";
3793 char TZ_PST8[] = "TZ=PST8";
3796 time_t now = time ((time_t *) 0);
3797 int hour_GMT0, hour_unset;
3798 if (putenv (TZ_GMT0) != 0)
3800 hour_GMT0 = localtime (&now)->tm_hour;
3802 hour_unset = localtime (&now)->tm_hour;
3803 if (putenv (TZ_PST8) != 0)
3805 if (localtime (&now)->tm_hour == hour_GMT0)
3808 if (localtime (&now)->tm_hour != hour_unset)
3811 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3812 [# If we have tzset, assume the worst when cross-compiling.
3813 emacs_cv_localtime_cache=yes])
3815 # If we lack tzset, report that localtime does not cache TZ,
3816 # since we can't invalidate the cache if we don't have tzset.
3817 emacs_cv_localtime_cache=no
3819 AC_MSG_RESULT($emacs_cv_localtime_cache)
3820 if test $emacs_cv_localtime_cache = yes; then
3821 AC_DEFINE(LOCALTIME_CACHE, 1,
3822 [Define to 1 if localtime caches TZ.])
3826 AC_CHECK_FUNC(socket, , ok_so_far=no)
3827 if test $ok_so_far = yes; then
3828 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3830 if test $ok_so_far = yes; then
3831 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3833 if test $ok_so_far = yes; then
3834 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3835 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3836 [Define to 1 if you have inet sockets.])
3841 AC_CHECK_FUNCS(snprintf)
3843 dnl Check for glib. This differs from other library checks in that
3844 dnl Emacs need not link to glib unless some other library is already
3845 dnl linking to glib. Although glib provides no facilities that Emacs
3846 dnl needs for its own purposes, when glib is present Emacs needs to
3847 dnl use primitives like g_main_context_query to avoid clashing with
3848 dnl glib at a low level.
3850 dnl Check this late, since it depends on $GTK_CFLAGS etc.
3854 CFLAGS="$CFLAGS $GTK_CFLAGS $RSVG_CFLAGS $DBUS_CFLAGS $SETTINGS_CFLAGS"
3855 LIBS="$LIBS $GTK_LIBS $RSVG_LIBS $DBUS_LIBS $SETTINGS_LIBS"
3856 CFLAGS="$CFLAGS $GFILENOTIFY_CFLAGS"
3857 LIBS="$LIBS $GFILENOTIFY_LIBS"
3858 AC_MSG_CHECKING([whether GLib is linked in])
3859 AC_LINK_IFELSE([AC_LANG_PROGRAM(
3862 [[g_print ("Hello world");]])],
3865 AC_MSG_RESULT([$links_glib])
3866 if test "${links_glib}" = "yes"; then
3867 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
3868 if test "$HAVE_NS" = no;then
3876 dnl Adapted from Haible's version.
3877 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3878 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3879 [[char* cs = nl_langinfo(CODESET);]])],
3880 emacs_cv_langinfo_codeset=yes,
3881 emacs_cv_langinfo_codeset=no)
3883 if test $emacs_cv_langinfo_codeset = yes; then
3884 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3885 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3890 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3891 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3892 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3893 if test "$emacs_cv_c_restrict_arr" = yes; then
3894 AC_DEFINE(__restrict_arr, __restrict,
3895 [Define to compiler's equivalent of C99 restrict keyword in array
3896 declarations. Define as empty for no equivalent.])
3899 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3900 dnl how the tty code is related to POSIX and/or other versions of termios.
3901 dnl The following looks like a useful start.
3903 dnl AC_SYS_POSIX_TERMIOS
3904 dnl if test $ac_cv_sys_posix_termios = yes; then
3905 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3906 dnl and macros for terminal control.])
3907 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3910 dnl Turned on June 1996 supposing nobody will mind it.
3911 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
3912 if test "${opsys}" != "mingw32"; then
3913 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3914 in the full name stands for the login id.])
3917 dnl Everybody supports this, except MS.
3918 dnl Seems like the kind of thing we should be testing for, though.
3919 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3920 if test "${opsys}" != "mingw32"; then
3921 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3924 dnl Everybody supports this, except MS-DOS.
3925 dnl Seems like the kind of thing we should be testing for, though.
3926 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3927 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3928 4.2-compatible sockets.])
3930 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3932 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
3933 a null file, or a data sink.])
3934 if test "${opsys}" = "mingw32"; then
3935 AC_DEFINE(NULL_DEVICE, ["NUL:"])
3937 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
3940 if test "${opsys}" = "mingw32"; then
3945 AC_DEFINE_UNQUOTED(SEPCHAR, ['$SEPCHAR'], [Character that separates PATH elements.])
3946 dnl This is for MinGW, and is used in test/automated/Makefile.in.
3947 dnl The MSYS Bash has heuristics for replacing ':' with ';' when it
3948 dnl decides that a command-line argument to be passed to a MinGW program
3949 dnl is a PATH-style list of directories. But that heuristics plays it
3950 dnl safe, and only does the replacement when it is _absolutely_ sure it
3951 dnl sees a colon-separated list of file names; e.g. ":." is left alone,
3952 dnl which breaks in-tree builds. So we do this manually instead.
3953 dnl Note that we cannot rely on PATH_SEPARATOR, as that one will always
3954 dnl be computed as ':' in MSYS Bash.
3957 dnl Everybody supports this, except MS-DOS.
3958 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3960 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3963 AC_DEFINE(DIRECTORY_SEP, ['/'],
3964 [Character that separates directories in a file name.])
3966 if test "${opsys}" = "mingw32"; then
3967 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
3968 [Returns true if character is a device separator.])
3970 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
3971 [Returns true if character is a directory separator.])
3973 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
3974 [Returns true if character is any form of separator.])
3976 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
3977 [Returns true if character is a device separator.])
3979 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
3980 [Returns true if character is a directory separator.])
3982 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
3983 [Returns true if character is any form of separator.])
3986 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
3990 dnl Unfortunately without libXmu we cannot support EditRes.
3991 if test "x$ac_cv_search_XmuConvertStandardSelection" = xno; then
3992 AC_DEFINE(NO_EDITRES, 1)
3997 dnl Assar Westerlund <assar@sics.se> says this is necessary for
3998 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
3999 AC_DEFINE(NO_EDITRES, 1)
4005 irix6-5 | sol2* | unixware )
4006 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
4007 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
4008 dnl need the constant to dimension an array. So wire in the appropriate
4010 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
4014 emacs_broken_SIGIO=no
4017 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
4018 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
4019 hpux* | irix6-5 | openbsd | sol2* | unixware )
4020 emacs_broken_SIGIO=yes
4024 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
4025 dnl the way this system works, libc functions that return malloced
4026 dnl memory use the libc malloc implementation. Calling xfree or
4027 dnl xrealloc on the results of such functions results in a crash.
4029 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
4030 dnl but that does not currently work on this system.
4032 dnl It is possible to completely override the malloc implementation on
4033 dnl AIX, but that involves putting the malloc functions in a shared
4034 dnl library and setting the MALLOCTYPE environment variable to point to
4035 dnl that shared library.
4037 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
4038 dnl to avoid a crash just use the Emacs implementation for that function.
4040 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
4041 dnl of this file, so that we do not check for get_current_dir_name
4042 dnl on AIX. But that might be fragile if something else ends
4043 dnl up testing for get_current_dir_name as a dependency.
4044 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
4045 get_current_dir_name should not be used.])
4049 dnl Circumvent a bug in FreeBSD. In the following sequence of
4050 dnl writes/reads on a PTY, read(2) returns bogus data:
4052 dnl write(2) 1022 bytes
4053 dnl write(2) 954 bytes, get EAGAIN
4054 dnl read(2) 1024 bytes in process_read_output
4055 dnl read(2) 11 bytes in process_read_output
4057 dnl That is, read(2) returns more bytes than have ever been written
4058 dnl successfully. The 1033 bytes read are the 1022 bytes written
4059 dnl successfully after processing (for example with CRs added if the
4060 dnl terminal is set up that way which it is here). The same bytes will
4061 dnl be seen again in a later read(2), without the CRs.
4062 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
4063 work around an issue when reading from a PTY.])
4069 dnl FIXME Can't we test if this exists (eg /proc/$$)?
4070 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
4075 darwin | dragonfly | freebsd | netbsd | openbsd )
4076 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
4077 close a pty to make it a controlling terminal (it is already a
4078 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
4082 dnl FIXME Surely we can test for this rather than hard-code it.
4084 netbsd | openbsd) sound_device="/dev/audio" ;;
4085 *) sound_device="/dev/dsp" ;;
4089 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
4090 [Name of the default sound device.])
4093 dnl Emacs can read input using SIGIO and buffering characters itself,
4094 dnl or using CBREAK mode and making C-g cause SIGINT.
4095 dnl The choice is controlled by the variable interrupt_input.
4097 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
4099 dnl Emacs uses the presence of the USABLE_SIGIO macro
4100 dnl to indicate whether or not signal-driven I/O is possible. It uses
4101 dnl INTERRUPT_INPUT to decide whether to use it by default.
4103 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
4104 dnl CBREAK mode has two disadvantages
4105 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
4106 dnl I hear that in system V this problem does not exist.
4107 dnl 2) Control-G causes output to be discarded.
4108 dnl I do not know whether this can be fixed in system V.
4110 dnl Another method of doing input is planned but not implemented.
4111 dnl It would have Emacs fork off a separate process
4112 dnl to read the input and send it to the true Emacs process
4115 darwin | gnu-linux | gnu-kfreebsd )
4116 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
4121 dnl If the system's imake configuration file defines `NeedWidePrototypes'
4122 dnl as `NO', we must define NARROWPROTO manually. Such a define is
4123 dnl generated in the Makefile generated by `xmkmf'. If we don't define
4124 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
4125 dnl taking float or double parameters.
4127 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
4128 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
4129 file defines `NeedWidePrototypes' as `NO'.])
4134 dnl Used in process.c, this must be a loop, even if it only runs once.
4135 dnl (Except on SGI; see below. Take that, clarity and consistency!)
4136 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
4137 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
4138 dnl trying suffixes 0-16.
4139 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
4140 first PTY, if PTYs are supported.])
4141 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
4142 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
4143 end of a PTY, if non-standard.])
4144 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
4145 end of a PTY, if non-standard.])
4149 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4150 dnl You allocate a pty by opening /dev/ptc to get the master side.
4151 dnl To get the name of the slave side, you just ttyname() the master side.
4152 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4153 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4157 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4158 dnl multi-line AC_DEFINEs are hard. :(
4159 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)])
4160 AC_DEFINE(PTY_NAME_SPRINTF, [])
4161 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4164 dnl FIXME? Maybe use same as freebsd - see bug#12040.
4166 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4167 dnl Not used, because PTY_ITERATION is defined.
4168 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4169 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
4170 dnl But we don't have to block SIGCHLD because it is blocked in the
4171 dnl implementation of grantpt.
4172 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (false)])
4173 AC_DEFINE(PTY_NAME_SPRINTF, [])
4174 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4178 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4181 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd )
4183 if test "x$ac_cv_func_grantpt" = xyes; then
4184 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4185 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4186 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4187 dnl to prevent sigchld_handler from intercepting the child's death.
4188 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); }])
4189 dnl if HAVE_POSIX_OPENPT
4190 if test "x$ac_cv_func_posix_openpt" = xyes; then
4191 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (false)])
4192 AC_DEFINE(PTY_NAME_SPRINTF, [])
4194 elif test "x$ac_cv_func_getpt" = xyes; then
4195 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4196 AC_DEFINE(PTY_NAME_SPRINTF, [])
4198 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4201 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4206 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4207 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4208 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4212 dnl It looks like this cannot be right, because it is not a loop.
4213 dnl However, process.c actually does this:
4219 dnl which presumably makes it OK, since irix == sgi (?).
4220 dnl FIXME it seems like this special treatment is unnecessary?
4221 dnl Why can't irix use a single-trip loop like eg cygwin?
4222 AC_DEFINE(PTY_ITERATION, [])
4223 dnl Not used, because PTY_ITERATION is defined.
4224 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
4225 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); }])
4226 dnl No need to get the pty name at all.
4227 AC_DEFINE(PTY_NAME_SPRINTF, [])
4228 dnl No need to use sprintf to get the tty name--we get that from _getpty.
4229 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4233 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
4234 dnl from intercepting that death. If any child but grantpt's should die
4235 dnl within, it should be caught after sigrelse(2).
4236 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); }])
4240 dnl Comments are as per sol2*.
4241 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); }])
4248 dnl This change means that we don't loop through allocate_pty too
4249 dnl many times in the (rare) event of a failure.
4250 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4251 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4252 dnl Push various streams modules onto a PTY channel. Used in process.c.
4253 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.])
4258 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4259 "typing" a signal character on the pty.])
4262 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4263 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
4264 aix4-2 | cygwin | gnu | irix6-5 | dragonfly | freebsd | netbsd | openbsd | darwin )
4265 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4268 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4269 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4270 gnu-linux | gnu-kfreebsd )
4272 AC_MSG_CHECKING([for signals via characters])
4273 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4274 #include <linux/version.h>
4275 #if LINUX_VERSION_CODE < 0x20400
4276 # error "Linux version too old"
4278 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4280 AC_MSG_RESULT([$emacs_signals_via_chars])
4281 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4286 AH_TEMPLATE(TAB3, [Undocumented.])
4289 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4291 gnu | dragonfly | freebsd | netbsd | openbsd )
4292 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4293 AC_DEFINE(TAB3, OXTABS)
4296 gnu-linux | gnu-kfreebsd )
4297 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4301 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4302 [do { extern void *__libc_ia64_register_backing_store_base; __builtin_ia64_flushrs (); mark_memory (__libc_ia64_register_backing_store_base, __builtin_ia64_bsp ());} while (false)],
4303 [Mark a secondary stack, like the register stack on the ia64.]), [])
4307 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4308 run_time_remap; for HPUX.])
4313 dnl This won't be used automatically yet. We also need to know, at least,
4314 dnl that the stack is continuous.
4315 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4316 registers relevant for conservative garbage collection in the jmp_buf.])
4320 dnl Not all the architectures are tested, but there are Debian packages
4321 dnl for SCM and/or Guile on them, so the technique must work. See also
4322 dnl comments in alloc.c concerning setjmp and gcc.
4323 dnl Fixme: it's probably safe to just use the GCC conditional below.
4324 gnu-linux | gnu-kfreebsd )
4325 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4326 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4327 || defined __alpha__ || defined __mips__ || defined __s390__ \
4328 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4329 || defined __ia64__ || defined __sh__
4332 # error "setjmp not known to work on this arch"
4334 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4339 if test x$GCC = xyes; then
4340 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4341 AC_DEFINE(GC_SETJMP_WORKS, 1)
4344 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
4345 aix* | dragonfly | freebsd | netbsd | openbsd | irix6-5 | sol2* )
4346 AC_DEFINE(GC_SETJMP_WORKS, 1)
4351 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4352 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4355 [[#include <setjmp.h>
4357 # define _longjmp longjmp
4362 _longjmp (j, 1);]])],
4363 [emacs_cv_func__setjmp=yes],
4364 [emacs_cv_func__setjmp=no])])
4365 if test $emacs_cv_func__setjmp = yes; then
4366 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4368 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4371 [[#include <setjmp.h>
4374 if (! sigsetjmp (j, 1))
4375 siglongjmp (j, 1);]])],
4376 [emacs_cv_func_sigsetjmp=yes],
4377 [emacs_cv_func_sigsetjmp=no])])
4378 if test $emacs_cv_func_sigsetjmp = yes; then
4379 AC_DEFINE([HAVE_SIGSETJMP], 1,
4380 [Define to 1 if sigsetjmp and siglongjmp work.
4381 The value of this symbol is irrelevant if HAVE__SETJMP is defined.])
4387 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4388 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4389 dnl and this is all we need.
4390 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4397 dnl Used in xfaces.c.
4398 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4399 some systems, where it requires time.h.])
4404 dnl Define symbols to identify the version of Unix this is.
4405 dnl Define all the symbols that apply correctly.
4406 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4407 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4408 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4409 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4414 dnl This symbol should be defined on AIX Version 3 ???????
4415 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4417 # error "_AIX not defined"
4419 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4423 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4427 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
4428 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4429 dnl distinguish OS X from pure Darwin.
4430 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4433 gnu-linux | gnu-kfreebsd )
4435 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4440 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4445 AC_DEFINE(USG5_4, [])
4446 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4450 AC_DEFINE(DOS_NT, [])
4451 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4452 if test "x$ac_enable_checking" != "x" ; then
4453 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4459 AC_DEFINE(USG5_4, [])
4460 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4465 AC_DEFINE(USG5_4, [])
4469 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4472 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4473 emacs_cv_usable_FIONREAD=no
4477 emacs_cv_usable_FIONREAD=yes
4482 [AC_LANG_PROGRAM([[#include <sys/types.h>
4483 #include <sys/ioctl.h>
4485 # include <sys/filio.h>
4488 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4489 [emacs_cv_usable_FIONREAD=yes],
4490 [emacs_cv_usable_FIONREAD=no])
4493 if test $emacs_cv_usable_FIONREAD = yes; then
4494 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4496 if test $emacs_broken_SIGIO = no; then
4497 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4499 [AC_LANG_PROGRAM([[#include <fcntl.h>
4502 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4503 [emacs_cv_usable_SIGIO=yes],
4504 [emacs_cv_usable_SIGIO=no])],
4505 [emacs_cv_usable_SIGIO=yes],
4506 [emacs_cv_usable_SIGIO=no])
4507 if test $emacs_cv_usable_SIGIO = yes; then
4508 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4515 dnl Emacs supplies its own malloc, but glib calls posix_memalign,
4516 dnl and on Cygwin prior to version 1.7.24 that becomes the
4517 dnl Cygwin-supplied posix_memalign. As malloc is not the Cygwin
4518 dnl malloc, the Cygwin posix_memalign always returns ENOSYS. A
4519 dnl workaround is to set G_SLICE=always-malloc. This is no longer
4520 dnl needed starting with cygwin-1.7.24, and it is no longer
4521 dnl effective starting with glib-2.36. */
4523 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
4524 G_SLICE environment variable to "always-malloc" at startup.])
4528 dnl It works to open the pty's tty in the parent (Emacs), then
4529 dnl close and reopen it in the child.
4530 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4531 works to open a pty's tty in the parent process, then close and
4532 reopen it in the child.])
4536 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4537 use VSUSP instead of VSWTCH.])
4541 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4546 # Set up the CFLAGS for real compilation, so we can substitute it.
4547 CFLAGS="$REAL_CFLAGS"
4548 CPPFLAGS="$REAL_CPPFLAGS"
4551 ## Hack to detect a buggy GCC version.
4552 if test "x$GCC" = xyes \
4553 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4554 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4555 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4556 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4559 version=$PACKAGE_VERSION
4561 copyright="Copyright (C) 2014 Free Software Foundation, Inc."
4562 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4563 [Short copyright string for this version of Emacs.])
4566 ### Specify what sort of things we'll be editing into Makefile and config.h.
4567 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4569 AC_SUBST(configuration)
4574 AC_SUBST(exec_prefix)
4577 AC_SUBST(sharedstatedir)
4578 AC_SUBST(libexecdir)
4582 AC_SUBST(standardlisppath)
4583 AC_SUBST(locallisppath)
4585 AC_SUBST(x_default_search_path)
4587 AC_SUBST(archlibdir)
4592 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4593 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4594 ## end of LIBX_BASE, but nothing ever set it.
4595 AC_SUBST(LD_SWITCH_X_SITE)
4596 AC_SUBST(C_SWITCH_X_SITE)
4597 AC_SUBST(GNUSTEP_CFLAGS)
4599 ## Used in lwlib/Makefile.in.
4600 AC_SUBST(X_TOOLKIT_TYPE)
4602 AC_SUBST(ns_appbindir)
4603 AC_SUBST(ns_appresdir)
4605 AC_SUBST(GNU_OBJC_CFLAGS)
4606 AC_SUBST(OTHER_FILES)
4608 if test -n "${term_header}"; then
4609 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4610 [Define to the header for the built-in window system.])
4613 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4614 [Define to the canonical Emacs configuration name.])
4615 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4616 [Define to the options passed to configure.])
4617 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4618 define this to include extra configuration information.])
4622 AC_DEFINE(config_opsysfile, <ms-w32.h>, [])
4629 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4630 AC_DEFINE(HAVE_X_WINDOWS, 1,
4631 [Define to 1 if you want to use the X window system.])
4633 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4635 if test "$HAVE_XFT" = "yes"; then
4636 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4637 elif test "$HAVE_FREETYPE" = "yes"; then
4638 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4648 if test "${USE_X_TOOLKIT}" != "none" ; then
4650 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4651 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4652 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4653 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4654 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4658 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4659 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4663 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4664 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4665 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4669 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4670 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4673 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4676 AC_SUBST(WIDGET_OBJ)
4679 case "$USE_X_TOOLKIT" in
4680 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4681 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4682 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4684 AC_SUBST(TOOLKIT_LIBW)
4686 if test "${opsys}" != "mingw32"; then
4687 if test "$USE_X_TOOLKIT" = "none"; then
4688 LIBXT_OTHER="\$(LIBXSM)"
4690 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4693 AC_SUBST(LIBXT_OTHER)
4695 if test "${HAVE_X11}" = "yes" ; then
4696 AC_DEFINE(HAVE_X11, 1,
4697 [Define to 1 if you want to use version 11 of X windows.])
4698 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4702 AC_SUBST(LIBX_OTHER)
4704 if test "$HAVE_GTK" = yes || test "$HAVE_X11" != yes; then
4706 elif test "$USE_X_TOOLKIT" = none; then
4707 LIBXMENU='$(oldXMenudir)/libXMenu11.a'
4709 LIBXMENU='$(lwlibdir)/liblw.a'
4713 if test "${GNU_MALLOC}" = "yes" ; then
4714 AC_DEFINE(GNU_MALLOC, 1,
4715 [Define to 1 if you want to use the GNU memory allocator.])
4719 if test "${REL_ALLOC}" = "yes" ; then
4720 AC_DEFINE(REL_ALLOC, 1,
4721 [Define REL_ALLOC if you want to use the relocating allocator for
4724 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4726 AC_SUBST(RALLOC_OBJ)
4728 if test "$opsys" = "cygwin"; then
4729 CYGWIN_OBJ="sheap.o cygw32.o"
4730 ## Cygwin differs because of its unexec().
4732 POST_ALLOC_OBJ=lastfile.o
4733 elif test "$opsys" = "mingw32"; then
4736 POST_ALLOC_OBJ=lastfile.o
4739 PRE_ALLOC_OBJ=lastfile.o
4742 AC_SUBST(CYGWIN_OBJ)
4743 AC_SUBST(PRE_ALLOC_OBJ)
4744 AC_SUBST(POST_ALLOC_OBJ)
4746 dnl Call this 'FORTIFY_SOUR' so that it sorts before the 'FORTIFY_SOURCE'
4747 dnl verbatim defined above. The tricky name is apropos, as this hack
4748 dnl makes Fortify go sour!
4749 AH_VERBATIM([FORTIFY_SOUR],
4750 [/* Without the following workaround, Emacs runs slowly on OS X 10.8.
4751 The workaround disables some useful run-time checking, so it
4752 should be conditional to the platforms with the performance bug.
4753 Perhaps Apple will fix this some day; also see m4/extern-inline.m4. */
4754 #if defined __APPLE__ && defined __GNUC__
4755 # ifndef _DONT_USE_CTYPE_INLINE_
4756 # define _DONT_USE_CTYPE_INLINE_
4758 # ifndef _FORTIFY_SOURCE
4759 # define _FORTIFY_SOURCE 0
4764 # If user asks to omit features, disable optional features that gnulib
4765 # might otherwise enable.
4766 if test "$with_features" = no && test "$enable_acl" != yes; then
4770 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4771 # it temporarily reverts them to their pre-pkg-config values,
4772 # because gnulib needs to work with both src (which uses the
4773 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4774 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4775 # and it therefore needs to run in an environment where LIBS does not
4776 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4777 # for some package unrelated to lib-src.
4780 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4781 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4782 gl_ASSERT_NO_GNULIB_POSIXCHECK
4783 gl_ASSERT_NO_GNULIB_TESTS
4788 if test "${opsys}" = "mingw32"; then
4789 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I \${abs_top_srcdir}/nt/inc"
4790 # Remove unneeded switches from the value of CC that goes to Makefiles
4791 CC=`echo $CC | sed -e "s,$GCC_TEST_OPTIONS,,"`
4795 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4798 ## The -headerpad option tells ld (see man page) to leave room at the
4799 ## end of the header for adding load commands. Needed for dumping.
4800 ## 0x690 is the total size of 30 segment load commands (at 56
4801 ## each); under Cocoa 31 commands are required.
4802 if test "$HAVE_NS" = "yes"; then
4803 libs_nsgui="-framework AppKit"
4804 if test "$NS_IMPL_COCOA" = "yes"; then
4805 libs_nsgui="$libs_nsgui -framework IOKit"
4812 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4814 ## This is here because src/Makefile.in did some extra fiddling around
4815 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
4816 ## LD_SWITCH_SYSTEM_TEMACS instead,
4817 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4818 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4821 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4822 ## find X at run-time.
4823 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4824 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4825 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4826 ## had different values in configure (in ac_link) and src/Makefile.in.
4827 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4828 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4831 ## Is it any better under MinGW64 to relocate emacs into higher addresses?
4832 case "$canonical" in
4833 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x400000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4834 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4838 openbsd) LD_SWITCH_SYSTEM_TEMACS='-nopie' ;;
4840 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4843 if test x$ac_enable_profiling != x ; then
4845 *freebsd | gnu-linux) ;;
4846 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
4850 LD_SWITCH_SYSTEM_TEMACS="$LDFLAGS_NOCOMBRELOC $LD_SWITCH_SYSTEM_TEMACS"
4852 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4854 ## Common for all window systems
4855 if test "$window_system" != "none"; then
4856 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4857 AC_DEFINE(POLL_FOR_INPUT, 1, [Define if you poll periodically to detect C-g.])
4858 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4861 AC_SUBST(WINDOW_SYSTEM_OBJ)
4863 AH_TOP([/* GNU Emacs site configuration template file.
4865 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2014
4866 Free Software Foundation, Inc.
4868 This file is part of GNU Emacs.
4870 GNU Emacs is free software: you can redistribute it and/or modify
4871 it under the terms of the GNU General Public License as published by
4872 the Free Software Foundation, either version 3 of the License, or
4873 (at your option) any later version.
4875 GNU Emacs is distributed in the hope that it will be useful,
4876 but WITHOUT ANY WARRANTY; without even the implied warranty of
4877 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4878 GNU General Public License for more details.
4880 You should have received a copy of the GNU General Public License
4881 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4884 /* No code in Emacs #includes config.h twice, but some bits of code
4885 intended to work with other packages as well (like gmalloc.c)
4886 think they can include it as many times as they like. */
4887 #ifndef EMACS_CONFIG_H
4888 #define EMACS_CONFIG_H
4891 AH_BOTTOM([#include <conf_post.h>
4893 #endif /* EMACS_CONFIG_H */
4902 #### Report on what we decided to do.
4903 #### Report GTK as a toolkit, even if it doesn't use Xt.
4904 #### It makes printing result more understandable as using GTK sets
4905 #### toolkit_scroll_bars to yes by default.
4906 if test "${HAVE_GTK}" = "yes"; then
4907 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
4910 if test $USE_ACL -ne 0; then
4911 ACL_SUMMARY="yes $LIB_ACL"
4917 Configured for \`${canonical}'.
4919 Where should the build process find the source code? ${srcdir}
4920 What compiler should emacs be built with? ${CC} ${CFLAGS}
4921 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4922 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4923 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4924 What window system should Emacs use? ${window_system}
4925 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4927 if test -n "${x_includes}"; then
4928 echo " Where do we find X Windows header files? ${x_includes}"
4930 echo " Where do we find X Windows header files? Standard dirs"
4932 if test -n "${x_libraries}"; then
4933 echo " Where do we find X Windows libraries? ${x_libraries}"
4935 echo " Where do we find X Windows libraries? Standard dirs"
4939 emacs_config_features=
4940 for opt in XAW3D XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS \
4941 GCONF GSETTINGS NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT \
4945 NOTIFY|ACL) eval val=\${${opt}_SUMMARY} ;;
4946 *) eval val=\${HAVE_$opt} ;;
4948 test x"$val" = xno && continue
4949 AS_VAR_APPEND([emacs_config_features], ["$optsep$opt"])
4952 AC_DEFINE_UNQUOTED(EMACS_CONFIG_FEATURES, "${emacs_config_features}",
4953 [Summary of some of the main features enabled by configure.])
4955 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4956 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4957 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4958 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4959 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4960 echo " Does Emacs use a png library? ${HAVE_PNG} $LIBPNG"
4961 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4962 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4964 echo " Does Emacs support sound? ${HAVE_SOUND}"
4966 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4967 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4968 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4969 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4970 echo " Does Emacs use a file notification library? ${NOTIFY_SUMMARY}"
4971 echo " Does Emacs use access control lists? ${ACL_SUMMARY}"
4972 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4973 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4974 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4976 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4977 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4978 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
4979 echo " Does Emacs use -lxft? ${HAVE_XFT}"
4980 echo " Does Emacs directly use zlib? ${HAVE_ZLIB}"
4982 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
4985 if test -n "${EMACSDATA}"; then
4986 echo " Environment variable EMACSDATA set to: $EMACSDATA"
4988 if test -n "${EMACSDOC}"; then
4989 echo " Environment variable EMACSDOC set to: $EMACSDOC"
4994 if test "$HAVE_NS" = "yes"; then
4996 echo "You must run \"${MAKE-make} install\" in order to test the built application.
4997 The installed application will go to nextstep/Emacs.app and can be
4998 run or moved from there."
4999 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
5000 echo "The application will be fully self-contained."
5002 echo "The lisp resources for the application will be installed under ${prefix}.
5003 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
5004 to run if these resources are not installed."
5009 if test "${opsys}" = "cygwin"; then
5011 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
5017 # Remove any trailing slashes in these variables.
5018 [test "${prefix}" != NONE &&
5019 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
5020 test "${exec_prefix}" != NONE &&
5021 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
5023 if test "$HAVE_NS" = "yes"; then
5024 if test "$NS_IMPL_GNUSTEP" = yes; then
5025 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
5026 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
5027 ns_check_file=Resources/Info-gnustep.plist
5029 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
5030 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
5031 ns_check_file=Contents/Info.plist
5033 AC_SUBST(ns_check_file)
5036 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
5037 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
5038 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
5039 dnl (else you get "no `Makefile.am' found for any configure output").
5040 dnl This will work, but you get a config.status that is not quite right
5041 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
5042 dnl That doesn't have any obvious consequences for Emacs, but on the whole
5043 dnl it seems better to just live with the duplication.
5044 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile nt/Makefile"
5046 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
5047 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
5048 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
5049 leim/Makefile nextstep/Makefile nt/Makefile])
5051 dnl test/ is not present in release tarfiles.
5052 opt_makefile=test/automated/Makefile
5054 if test -f "$srcdir/$opt_makefile.in"; then
5055 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
5056 dnl Again, it's best not to use a variable. Though you can add
5057 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
5058 AC_CONFIG_FILES([test/automated/Makefile])
5062 dnl The admin/ directory used to be excluded from tarfiles.
5063 if test -d $srcdir/admin; then
5064 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES admin/unidata/Makefile admin/grammars/Makefile"
5065 AC_CONFIG_FILES([admin/unidata/Makefile])
5066 AC_CONFIG_FILES([admin/grammars/Makefile])
5070 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
5072 AC_SUBST(SUBDIR_MAKEFILES_IN)
5074 dnl You might wonder (I did) why epaths.h is generated by running make,
5075 dnl rather than just letting configure generate it from epaths.in.
5076 dnl One reason is that the various paths are not fully expanded (see above);
5077 dnl eg gamedir=${prefix}/var/games/emacs.
5078 dnl Secondly, the GNU Coding standards require that one should be able
5079 dnl to run `make prefix=/some/where/else' and override the values set
5080 dnl by configure. This also explains the `move-if-change' test and
5081 dnl the use of force in the `epaths-force' rule in Makefile.in.
5082 AC_CONFIG_COMMANDS([src/epaths.h], [
5083 if test "${opsys}" = "mingw32"; then
5084 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
5086 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
5087 fi || AC_MSG_ERROR(['src/epaths.h' could not be made.])
5088 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
5090 dnl NB we have to cheat and use the ac_... version because abs_top_srcdir
5091 dnl is not yet set, sigh. Or we could use ../$srcdir/src/.gdbinit,
5093 AC_CONFIG_COMMANDS([src/.gdbinit], [
5094 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
5095 echo "source $ac_abs_top_srcdir/src/.gdbinit" > src/.gdbinit
5101 test "$MAKE" = make || AC_MSG_NOTICE([Now you can run '$MAKE'.])