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_$1=no])])])
1374 PKG_CHECK_MODULES([GUILE], [guile-2.2])
1375 AC_SUBST(GUILE_CFLAGS)
1376 AC_SUBST(GUILE_LIBS)
1378 AC_PATH_PROG(GUILE_SNARF, guile-snarf, no)
1379 if test "$GUILE_SNARF" = "no"; then
1380 AC_MSG_ERROR([guile-snarf not found])
1385 if test "${with_sound}" != "no"; then
1386 # Sound support for GNU/Linux, the free BSDs, and MinGW.
1387 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h],
1388 have_sound_header=yes, [], [
1390 #define WIN32_LEAN_AND_MEAN
1391 #include <windows.h>
1394 test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
1395 AC_MSG_ERROR([OSS sound support requested but not found.])
1397 if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
1398 # Emulation library used on NetBSD.
1399 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1400 test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
1401 AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
1402 dnl FIXME? If we did find ossaudio, should we set with_sound=bsd-ossaudio?
1403 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1407 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1409 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1410 EMACS_CHECK_MODULES([ALSA], [$ALSA_MODULES])
1411 if test $HAVE_ALSA = yes; then
1412 SAVE_CFLAGS="$CFLAGS"
1414 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1415 LIBS="$ALSA_LIBS $LIBS"
1416 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1417 emacs_alsa_normal=yes,
1418 emacs_alsa_normal=no)
1419 if test "$emacs_alsa_normal" != yes; then
1420 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1421 [[snd_lib_error_set_handler (0);]])],
1422 emacs_alsa_subdir=yes,
1423 emacs_alsa_subdir=no)
1424 if test "$emacs_alsa_subdir" != yes; then
1425 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1427 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1430 CFLAGS="$SAVE_CFLAGS"
1432 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1433 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1434 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1435 elif test "${with_sound}" = "alsa"; then
1436 AC_MSG_ERROR([ALSA sound support requested but not found.])
1438 fi dnl with_sound = alsa|yes
1440 dnl Define HAVE_SOUND if we have sound support. We know it works and
1441 dnl compiles only on the specified platforms. For others, it
1442 dnl probably doesn't make sense to try.
1443 dnl FIXME So surely we should bypass this whole section if not using
1444 dnl one of these platforms?
1445 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1447 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1448 dnl Adjust the --with-sound help text if you change this.
1449 gnu-linux|freebsd|netbsd|mingw32)
1450 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1456 AC_SUBST(CFLAGS_SOUND)
1459 dnl checks for header files
1460 AC_CHECK_HEADERS_ONCE(
1464 sys/utsname.h pwd.h utmp.h util.h)
1466 AC_MSG_CHECKING(if personality LINUX32 can be set)
1467 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1468 emacs_cv_personality_linux32=yes,
1469 emacs_cv_personality_linux32=no)
1470 AC_MSG_RESULT($emacs_cv_personality_linux32)
1472 if test $emacs_cv_personality_linux32 = yes; then
1473 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1474 [Define to 1 if personality LINUX32 can be set.])
1477 dnl On Solaris 8 there's a compilation warning for term.h because
1478 dnl it doesn't define `bool'.
1479 AC_CHECK_HEADERS(term.h, , , -)
1481 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1483 if test $ac_cv_have_decl_sys_siglist != yes; then
1484 # For Tru64, at least:
1485 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1490 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1491 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1492 #if HAVE_SYS_SOCKET_H
1493 #include <sys/socket.h>
1495 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1496 #if HAVE_SYS_SOCKET_H
1497 #include <sys/socket.h>
1499 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1500 #if HAVE_SYS_SOCKET_H
1501 #include <sys/socket.h>
1504 dnl checks for structure members
1505 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1506 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1507 struct ifreq.ifr_addr,
1508 struct ifreq.ifr_addr.sa_len], , ,
1509 [AC_INCLUDES_DEFAULT
1510 #if HAVE_SYS_SOCKET_H
1511 #include <sys/socket.h>
1517 dnl Check for endianness.
1518 dnl AC_C_BIGENDIAN is done by gnulib.
1520 dnl check for Make feature
1525 dnl check if we have GCC and autodepend is on.
1526 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1527 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1528 SAVE_CFLAGS="$CFLAGS"
1529 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1530 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1531 CFLAGS="$SAVE_CFLAGS"
1532 test -f deps.d || ac_enable_autodepend=no
1534 AC_MSG_RESULT([$ac_enable_autodepend])
1535 if test $ac_enable_autodepend = yes; then
1536 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1537 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1538 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1539 deps_frag=autodeps.mk
1542 lwlib_deps_frag=$srcdir/lwlib/$deps_frag
1543 oldxmenu_deps_frag=$srcdir/oldXMenu/$deps_frag
1544 deps_frag=$srcdir/src/$deps_frag
1547 AC_SUBST_FILE(deps_frag)
1548 AC_SUBST_FILE(lwlib_deps_frag)
1549 AC_SUBST_FILE(oldxmenu_deps_frag)
1551 lisp_frag=$srcdir/src/lisp.mk
1552 AC_SUBST_FILE(lisp_frag)
1555 dnl checks for operating system services
1556 AC_SYS_LONG_FILE_NAMES
1558 #### Choose a window system.
1560 ## We leave window_system equal to none if
1561 ## we end up building without one. Any new window system should
1562 ## set window_system to an appropriate value and add objects to
1563 ## window-system-specific substs.
1567 if test "$no_x" != yes; then
1571 LD_SWITCH_X_SITE_RPATH=
1572 if test "${x_libraries}" != NONE; then
1573 if test -n "${x_libraries}"; then
1574 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1575 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1577 x_default_search_path=""
1578 x_search_path=${x_libraries}
1579 if test -z "${x_search_path}"; then
1580 x_search_path=/usr/lib
1582 for x_library in `echo ${x_search_path}: | \
1583 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1585 ${x_library}/X11/%L/%T/%N%C%S:\
1586 ${x_library}/X11/%l/%T/%N%C%S:\
1587 ${x_library}/X11/%T/%N%C%S:\
1588 ${x_library}/X11/%L/%T/%N%S:\
1589 ${x_library}/X11/%l/%T/%N%S:\
1590 ${x_library}/X11/%T/%N%S"
1591 if test x"${x_default_search_path}" = x; then
1592 x_default_search_path=${x_search_path}
1594 x_default_search_path="${x_search_path}:${x_default_search_path}"
1598 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1600 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1601 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1604 if test x"${x_includes}" = x; then
1605 bitmapdir=/usr/include/X11/bitmaps
1607 # accumulate include directories that have X11 bitmap subdirectories
1609 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1610 if test -d "${bmd}/X11/bitmaps"; then
1611 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1613 if test -d "${bmd}/bitmaps"; then
1614 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1617 if test ${bmd_acc} != "dummyval"; then
1618 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1625 tmp_CPPFLAGS="$CPPFLAGS"
1626 tmp_CFLAGS="$CFLAGS"
1627 CPPFLAGS="$CPPFLAGS -x objective-c"
1628 CFLAGS="$CFLAGS -x objective-c"
1631 if test "${with_ns}" != no; then
1632 if test "${opsys}" = darwin; then
1634 ns_appdir=`pwd`/nextstep/Emacs.app
1635 ns_appbindir=${ns_appdir}/Contents/MacOS
1636 ns_appresdir=${ns_appdir}/Contents/Resources
1637 ns_appsrc=Cocoa/Emacs.base
1638 elif test -f $GNUSTEP_CONFIG_FILE; then
1640 ns_appdir=`pwd`/nextstep/Emacs.app
1641 ns_appbindir=${ns_appdir}
1642 ns_appresdir=${ns_appdir}/Resources
1643 ns_appsrc=GNUstep/Emacs.base
1644 dnl FIXME sourcing this several times in subshells seems inefficient.
1645 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1646 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1647 dnl I seemed to need these as well with GNUstep-startup 0.25.
1648 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1649 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1650 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1651 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1652 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1653 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1654 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1655 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1656 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1657 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1658 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1659 dnl If they had chosen to either define it or not, we could have
1660 dnl just used AC_CHECK_DECL here.
1661 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1662 emacs_cv_objc_exceptions,
1663 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1664 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1668 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1669 if test $emacs_cv_objc_exceptions = yes; then
1670 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1671 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1672 [Define if GNUstep uses ObjC exceptions.])
1673 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1677 dnl This is only used while we test the NS headers, it gets reset below.
1678 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1680 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1681 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1682 files are missing or cannot be compiled.])])
1685 if test "${NS_IMPL_COCOA}" = "yes"; then
1686 AC_MSG_CHECKING([for OSX 10.4 or newer])
1687 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1689 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1690 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
1693 error "OSX 10.4 or newer required";
1697 ns_osx_have_104=yes,
1699 AC_MSG_RESULT([$ns_osx_have_104])
1701 if test $ns_osx_have_104 = no; then
1702 AC_MSG_ERROR([`OSX 10.4 or newer is required']);
1704 AC_MSG_CHECKING([for OSX 10.5 or newer])
1705 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1707 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1708 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1050
1711 error "OSX 10.5 not found";
1715 ns_osx_have_105=yes,
1717 AC_MSG_RESULT([$ns_osx_have_105])
1718 if test $ns_osx_have_105 = yes; then
1719 macfont_file="macfont.o"
1722 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1724 ns_have_nsinteger=yes,
1725 ns_have_nsinteger=no)
1726 if test $ns_have_nsinteger = yes; then
1727 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1731 AC_SUBST(LIBS_GNUSTEP)
1733 INSTALL_ARCH_INDEP_EXTRA=install-etc
1734 ns_self_contained=no
1737 if test "${HAVE_NS}" = yes; then
1738 if test "$with_toolkit_scroll_bars" = "no"; then
1739 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1742 window_system=nextstep
1743 # set up packaging dirs
1744 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1745 ns_self_contained=yes
1746 prefix=${ns_appresdir}
1747 exec_prefix=${ns_appbindir}
1748 dnl This one isn't really used, only archlibdir is.
1749 libexecdir="\${ns_appbindir}/libexec"
1750 archlibdir="\${ns_appbindir}/libexec"
1751 etcdocdir="\${ns_appresdir}/etc"
1752 etcdir="\${ns_appresdir}/etc"
1753 dnl FIXME maybe set datarootdir instead.
1754 dnl That would also get applications, icons, man.
1755 infodir="\${ns_appresdir}/info"
1756 mandir="\${ns_appresdir}/man"
1757 lispdir="\${ns_appresdir}/lisp"
1758 INSTALL_ARCH_INDEP_EXTRA=
1761 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o $macfont_file"
1763 CFLAGS="$tmp_CFLAGS"
1764 CPPFLAGS="$tmp_CPPFLAGS"
1765 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1766 AC_SUBST(ns_self_contained)
1768 AC_SUBST(NS_OBJC_OBJ)
1779 if test "${with_w32}" != no; then
1782 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1783 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1784 cannot be found.])])
1787 ## Using --with-w32 with MinGW is a no-op, but we allow it.
1790 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
1795 if test "${opsys}" = "mingw32"; then
1796 AC_MSG_CHECKING([whether Windows API headers are recent enough])
1797 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1798 #include <windows.h>
1799 #include <usp10.h>]],
1800 [[PIMAGE_NT_HEADERS pHeader;
1801 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
1802 [emacs_cv_w32api=yes
1805 AC_MSG_RESULT($emacs_cv_w32api)
1806 if test "${emacs_cv_w32api}" = "no"; then
1807 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
1818 if test "${HAVE_W32}" = "yes"; then
1819 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1820 AC_CHECK_TOOL(WINDRES, [windres],
1821 [AC_MSG_ERROR([No resource compiler found.])])
1822 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1823 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1824 EMACSRES="emacs.res"
1825 case "$canonical" in
1826 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
1827 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
1829 if test "${opsys}" = "cygwin"; then
1830 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1831 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1832 # Tell the linker that emacs.res is an object (which we compile from
1833 # the rc file), not a linker script.
1834 W32_RES_LINK="-Wl,emacs.res"
1836 UPDATE_MANIFEST=update-game-score.exe.manifest
1837 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
1838 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
1839 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
1840 W32_RES_LINK="\$(EMACSRES)"
1841 CLIENTRES="emacsclient.res"
1842 CLIENTW="emacsclientw\$(EXEEXT)"
1843 FIRSTFILE_OBJ=firstfile.o
1846 LIBS_ECLIENT="-lcomctl32"
1847 LIB_WSOCK32="-lwsock32"
1848 NTLIB="ntlib.$ac_objext"
1849 XARGS_LIMIT="-s 10000"
1855 AC_SUBST(EMACS_MANIFEST)
1856 AC_SUBST(UPDATE_MANIFEST)
1859 AC_SUBST(W32_RES_LINK)
1860 AC_SUBST(FIRSTFILE_OBJ)
1863 AC_SUBST(LIBS_ECLIENT)
1864 AC_SUBST(LIB_WSOCK32)
1866 AC_SUBST(XARGS_LIMIT)
1868 if test "${HAVE_W32}" = "yes"; then
1873 ## $window_system is now set to the window system we will
1876 if test "$window_system" = none && test "$gl_gcc_warnings" = yes; then
1877 # Too many warnings for now.
1879 nw="$nw -Wsuggest-attribute=const"
1880 nw="$nw -Wsuggest-attribute=noreturn"
1881 gl_MANYWARN_COMPLEMENT([WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
1883 gl_WARN_ADD([-Wno-unused-variable])
1884 gl_WARN_ADD([-Wno-unused-but-set-variable])
1885 gl_WARN_ADD([-Wno-unused-but-set-parameter])
1893 case "${window_system}" in
1898 case "${with_x_toolkit}" in
1899 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1900 motif ) USE_X_TOOLKIT=MOTIF ;;
1902 term_header=gtkutil.h
1903 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1904 dnl USE_X_TOOLKIT is set.
1905 USE_X_TOOLKIT=none ;;
1906 gtk2 ) with_gtk2=yes
1907 term_header=gtkutil.h
1908 USE_X_TOOLKIT=none ;;
1909 gtk3 ) with_gtk3=yes
1910 term_header=gtkutil.h
1911 USE_X_TOOLKIT=none ;;
1912 no ) USE_X_TOOLKIT=none ;;
1913 dnl If user did not say whether to use a toolkit, make this decision later:
1914 dnl use the toolkit if we have gtk, or X11R5 or newer.
1915 * ) USE_X_TOOLKIT=maybe ;;
1919 term_header=nsterm.h
1922 term_header=w32term.h
1926 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1927 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1928 if test "$HAVE_XSERVER" = true ||
1929 test -n "$DISPLAY" ||
1930 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1931 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1932 were found. You should install the relevant development files for X
1933 and for the toolkit you want, such as Gtk+ or Motif. Also make
1934 sure you have development files for image handling, i.e.
1935 tiff, gif, jpeg, png and xpm.
1936 If you are sure you want Emacs compiled without X window support, pass
1942 # Does the opsystem file prohibit the use of the GNU malloc?
1943 # Assume not, until told otherwise.
1947 [whether malloc is Doug Lea style],
1948 [emacs_cv_var_doug_lea_malloc],
1949 [emacs_cv_var_doug_lea_malloc=no
1950 dnl Hooks do not work with address sanitization.
1951 if test "$emacs_cv_sanitize_address" != yes; then
1954 [[#include <malloc.h>
1955 static void hook (void) {}]],
1956 [[malloc_set_state (malloc_get_state ());
1957 __after_morecore_hook = hook;
1958 __malloc_initialize_hook = hook;]])],
1959 [emacs_cv_var_doug_lea_malloc=yes])])
1961 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1963 system_malloc=$emacs_cv_sanitize_address
1965 ## darwin ld insists on the use of malloc routines in the System framework.
1966 darwin|mingw32|sol2-10) system_malloc=yes ;;
1970 if test "${system_malloc}" = "yes"; then
1971 AC_DEFINE([SYSTEM_MALLOC], 1,
1972 [Define to 1 to use the system memory allocator, even if it is not
1976 (The GNU allocators don't work with this system configuration.)"
1979 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1980 VMLIMIT_OBJ=vm-limit.o
1982 AC_CHECK_HEADERS([sys/vlimit.h])
1983 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
1986 [[extern char data_start[]; char ch;]],
1987 [[return data_start < &ch;]])],
1988 [emacs_cv_data_start=yes],
1989 [emacs_cv_data_start=no])])
1990 if test $emacs_cv_data_start = yes; then
1991 AC_DEFINE([HAVE_DATA_START], 1,
1992 [Define to 1 if data_start is the address of the start
1993 of the main data segment.])
1996 AC_SUBST(GMALLOC_OBJ)
1997 AC_SUBST(VMLIMIT_OBJ)
1999 if test "$doug_lea_malloc" = "yes" ; then
2000 if test "$GNU_MALLOC" = yes ; then
2002 (Using Doug Lea's new malloc from the GNU C Library.)"
2004 AC_DEFINE(DOUG_LEA_MALLOC, 1,
2005 [Define to 1 if the system memory allocator is Doug Lea style,
2006 with malloc hooks and malloc_set_state.])
2008 ## Use mmap directly for allocating larger buffers.
2009 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
2010 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
2011 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
2013 mingw32|gnu*) REL_ALLOC=no ;;
2017 if test x"${REL_ALLOC}" = x; then
2018 REL_ALLOC=${GNU_MALLOC}
2021 use_mmap_for_buffers=no
2023 cygwin|mingw32|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
2027 if test $use_mmap_for_buffers = yes; then
2028 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
2032 LIBS="$LIBS_SYSTEM $LIBS"
2034 dnl FIXME replace main with a function we actually want from this library.
2035 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
2037 dnl Check for the POSIX thread library.
2039 if test "$opsys" != "mingw32"; then
2040 AC_CHECK_HEADERS_ONCE(pthread.h)
2041 if test "$ac_cv_header_pthread_h"; then
2042 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
2043 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
2044 dnl testing for pthread_kill if Emacs uses gmalloc.c.
2045 if test "$GMALLOC_OBJ" = gmalloc.o; then
2046 emacs_pthread_function=pthread_atfork
2048 emacs_pthread_function=pthread_kill
2051 AC_SEARCH_LIBS([$emacs_pthread_function], [pthread],
2052 [AC_DEFINE([HAVE_PTHREAD], [1],
2053 [Define to 1 if you have pthread (-lpthread).])
2054 # Some systems optimize for single-threaded programs by default, and
2055 # need special flags to disable these optimizations. For example, the
2056 # definition of 'errno' in <errno.h>.
2059 AC_DEFINE([_REENTRANT], 1,
2060 [Define to 1 if your system requires this in multithreaded code.]);;
2062 AC_DEFINE([_THREAD_SAFE], 1,
2063 [Define to 1 if your system requires this in multithreaded code.]);;
2065 if test "X$LIBS" != "X$OLD_LIBS"; then
2066 eval LIB_PTHREAD=\$ac_cv_search_$emacs_pthread_function
2070 AC_SUBST([LIB_PTHREAD])
2073 dnl Check for need for bigtoc support on IBM AIX
2077 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
2079 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
2080 *) gdb_cv_bigtoc=-bbigtoc ;;
2083 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
2084 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
2089 # Change CFLAGS, CPPFLAGS, and LIBS temporarily so that C_SWITCH_X_SITE
2090 # is for the tests that follow. We set them back later on.
2092 REAL_CFLAGS="$CFLAGS"
2093 REAL_CPPFLAGS="$CPPFLAGS"
2096 if test "${HAVE_X11}" = "yes"; then
2097 DEFS="$C_SWITCH_X_SITE $DEFS"
2098 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2100 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2101 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2103 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2104 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2105 # but it's more convenient here to set LD_RUN_PATH since this
2106 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2107 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2108 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2112 if test "${opsys}" = "gnu-linux"; then
2113 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2114 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2115 [[XOpenDisplay ("foo");]])],
2116 [xgnu_linux_first_failure=no],
2117 [xgnu_linux_first_failure=yes])
2118 if test "${xgnu_linux_first_failure}" = "yes"; then
2119 OLD_CPPFLAGS="$CPPFLAGS"
2121 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2122 LIBS="$LIBS -b i486-linuxaout"
2123 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2124 [[XOpenDisplay ("foo");]])],
2125 [xgnu_linux_second_failure=no],
2126 [xgnu_linux_second_failure=yes])
2127 if test "${xgnu_linux_second_failure}" = "yes"; then
2128 # If we get the same failure with -b, there is no use adding -b.
2129 # So leave it out. This plays safe.
2132 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2133 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2136 CPPFLAGS=$OLD_CPPFLAGS
2143 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2144 # header files included from there.
2145 AC_MSG_CHECKING(for Xkb)
2146 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2147 #include <X11/XKBlib.h>]],
2148 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2149 emacs_xkb=yes, emacs_xkb=no)
2150 AC_MSG_RESULT($emacs_xkb)
2151 if test $emacs_xkb = yes; then
2152 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2155 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2156 XScreenNumberOfScreen)
2159 if test "${window_system}" = "x11"; then
2160 AC_MSG_CHECKING(X11 version 6)
2161 AC_CACHE_VAL(emacs_cv_x11_version_6,
2162 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2163 [[#if XlibSpecificationRelease < 6
2166 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2167 if test $emacs_cv_x11_version_6 = yes; then
2168 AC_MSG_RESULT(6 or newer)
2169 AC_DEFINE(HAVE_X11R6, 1,
2170 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2171 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2172 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2176 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2177 [Define if you have usable X11R6-style XIM support.])
2181 AC_MSG_RESULT(before 6)
2186 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
2188 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2189 if test "${with_rsvg}" != "no"; then
2190 RSVG_REQUIRED=2.11.0
2191 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2193 EMACS_CHECK_MODULES([RSVG], [$RSVG_MODULE])
2194 AC_SUBST(RSVG_CFLAGS)
2197 if test $HAVE_RSVG = yes; then
2198 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2199 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2200 # Windows loads librsvg dynamically
2201 if test "${opsys}" = "mingw32"; then
2209 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${HAVE_W32}" = "yes"; then
2210 if test "${with_imagemagick}" != "no"; then
2211 ## 6.3.5 is the earliest version known to work; see Bug#17339.
2212 ## 6.8.2 makes Emacs crash; see Bug#13867.
2213 IMAGEMAGICK_MODULE="Wand >= 6.3.5 Wand != 6.8.2"
2214 EMACS_CHECK_MODULES([IMAGEMAGICK], [$IMAGEMAGICK_MODULE])
2215 AC_SUBST(IMAGEMAGICK_CFLAGS)
2216 AC_SUBST(IMAGEMAGICK_LIBS)
2218 if test $HAVE_IMAGEMAGICK = yes; then
2219 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2222 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2223 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2224 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
2234 gtk_term_header=$term_header
2237 if test "${opsys}" != "mingw32"; then
2238 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2241 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2243 dnl Checks for libraries.
2244 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2245 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2246 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2247 AC_MSG_ERROR($GTK_PKG_ERRORS)
2249 if test "$pkg_check_gtk" = "yes"; then
2250 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2251 GTK_OBJ=emacsgtkfixed.o
2252 gtk_term_header=gtkutil.h
2253 USE_GTK_TOOLKIT="GTK3"
2254 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2255 AC_DEFINE([GDK_DISABLE_DEPRECATION_WARNINGS], [1],
2256 [Define to 1 to disable GTK+/GDK deprecation warnings.])
2257 AC_DEFINE([GLIB_DISABLE_DEPRECATION_WARNINGS], [1],
2258 [Define to 1 to disable Glib deprecation warnings.])
2262 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2266 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2269 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2271 dnl Checks for libraries.
2272 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2273 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2274 if test "$pkg_check_gtk" = "no" &&
2275 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2277 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2279 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2286 if test x"$pkg_check_gtk" = xyes; then
2289 CFLAGS="$CFLAGS $GTK_CFLAGS"
2290 LIBS="$GTK_LIBS $LIBS"
2291 dnl Try to compile a simple GTK program.
2292 AC_MSG_CHECKING([whether GTK compiles])
2296 [[/* Check the Gtk and Glib APIs. */
2297 #include <gtk/gtk.h>
2298 #include <glib-object.h>
2300 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2304 GtkSettings *gs = 0;
2305 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2306 strict C prohibits this. Use gtk_main_iteration to test that the
2307 libraries are there. */
2308 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2309 0, 0, 0, G_CALLBACK (callback), 0))
2310 gtk_main_iteration ();
2313 AC_MSG_RESULT([$GTK_COMPILES])
2314 if test "${GTK_COMPILES}" != "yes"; then
2316 if test "$USE_X_TOOLKIT" != "maybe"; then
2317 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2320 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2322 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2323 GTK_OBJ="gtkutil.o $GTK_OBJ"
2324 term_header=$gtk_term_header
2326 if "$PKG_CONFIG" --atleast-version=2.10 gtk+-2.0; then
2329 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2330 closing open displays. This is no problem if you just use
2331 one display, but if you use more than one and close one of them
2341 if test "${HAVE_GTK}" = "yes"; then
2343 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2344 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2345 if test "$with_toolkit_scroll_bars" != no; then
2346 with_toolkit_scroll_bars=yes
2349 dnl Check if we have the old file selection dialog declared and
2350 dnl in the link library. In 2.x it may be in the library,
2351 dnl but not declared if deprecated featured has been selected out.
2352 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2353 HAVE_GTK_FILE_SELECTION=no
2354 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2355 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2356 #include <gtk/gtk.h>])
2357 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2358 AC_CHECK_FUNCS(gtk_file_selection_new)
2361 dnl Same as above for gtk_handle_box.
2362 HAVE_GTK_HANDLE_BOX=no
2363 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2364 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2365 #include <gtk/gtk.h>])
2366 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2367 AC_CHECK_FUNCS(gtk_handle_box_new)
2370 dnl Same as above for gtk_tearoff_menu_item.
2371 HAVE_GTK_TEAROFF_MENU_ITEM=no
2372 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2373 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2374 #include <gtk/gtk.h>])
2375 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2376 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2379 dnl Check for functions introduced in 2.14 and later.
2380 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2381 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2382 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2383 gtk_orientable_set_orientation \
2384 gtk_window_set_has_resize_grip)
2386 term_header=gtkutil.h
2392 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2393 dnl other platforms.
2396 if test "${with_dbus}" = "yes"; then
2397 EMACS_CHECK_MODULES([DBUS], [dbus-1 >= 1.0])
2398 if test "$HAVE_DBUS" = yes; then
2399 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2400 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2401 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2404 LIBS="$LIBS $DBUS_LIBS"
2405 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2406 dbus_type_is_valid \
2407 dbus_validate_bus_name \
2408 dbus_validate_path \
2409 dbus_validate_interface \
2410 dbus_validate_member)
2415 AC_SUBST(DBUS_CFLAGS)
2419 dnl GSettings has been tested under GNU/Linux only.
2421 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2422 EMACS_CHECK_MODULES([GSETTINGS], [gio-2.0 >= 2.26])
2423 if test "$HAVE_GSETTINGS" = "yes"; then
2425 CFLAGS="$CFLAGS $GSETTINGS_CFLAGS"
2427 LIBS="$LIBS $GSETTINGS_LIBS"
2428 AC_MSG_CHECKING([whether GSettings is in gio])
2431 [[/* Check that gsettings really is present. */
2432 #include <glib-object.h>
2433 #include <gio/gio.h>
2436 GSettings *settings;
2437 GVariant *val = g_settings_get_value (settings, "");
2439 [], HAVE_GSETTINGS=no)
2440 AC_MSG_RESULT([$HAVE_GSETTINGS])
2442 if test "$HAVE_GSETTINGS" = "yes"; then
2443 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2444 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2445 SETTINGS_LIBS="$GSETTINGS_LIBS"
2452 dnl GConf has been tested under GNU/Linux only.
2453 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2455 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2456 EMACS_CHECK_MODULES([GCONF], [gconf-2.0 >= 2.13])
2457 if test "$HAVE_GCONF" = yes; then
2458 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2459 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2460 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2461 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2465 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2466 EMACS_CHECK_MODULES([GOBJECT], [gobject-2.0 >= 2.0])
2467 if test "$HAVE_GOBJECT" = "yes"; then
2468 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2469 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2471 SAVE_CFLAGS="$CFLAGS"
2473 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2474 LIBS="$SETTINGS_LIBS $LIBS"
2475 CFLAGS="$SAVE_CFLAGS"
2478 AC_SUBST(SETTINGS_CFLAGS)
2479 AC_SUBST(SETTINGS_LIBS)
2482 dnl SELinux is available for GNU/Linux only.
2485 if test "${with_selinux}" = "yes"; then
2486 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2487 if test "$HAVE_LIBSELINUX" = yes; then
2488 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2489 LIBSELINUX_LIBS=-lselinux
2492 AC_SUBST(LIBSELINUX_LIBS)
2496 if test "${with_gnutls}" = "yes" ; then
2497 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 3.0.0],
2498 [HAVE_GNUTLS3=yes], [HAVE_GNUTLS3=no])
2499 if test "${HAVE_GNUTLS3}" = "yes"; then
2500 AC_DEFINE(HAVE_GNUTLS3, 1, [Define if using GnuTLS v3.])
2503 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6],
2504 [HAVE_GNUTLS=yes], [HAVE_GNUTLS=no])
2506 if test "${HAVE_GNUTLS}" = "yes"; then
2507 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2510 # Windows loads GnuTLS dynamically
2511 if test "${opsys}" = "mingw32"; then
2516 AC_SUBST(LIBGNUTLS_LIBS)
2517 AC_SUBST(LIBGNUTLS_CFLAGS)
2522 dnl FIXME? Don't auto-detect on NS, but do allow someone to specify
2523 dnl a particular library. This doesn't make much sense?
2524 if test "${with_ns}" = yes && test ${with_file_notification} = yes; then
2525 with_file_notification=no
2528 dnl MS Windows native file monitor is available for mingw32 only.
2529 case $with_file_notification,$opsys in
2530 w32,* | yes,mingw32)
2531 AC_CHECK_HEADER(windows.h)
2532 if test "$ac_cv_header_windows_h" = yes ; then
2533 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2534 NOTIFY_OBJ=w32notify.o
2535 NOTIFY_SUMMARY="yes (w32)"
2539 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2540 dnl has been added in glib 2.24. It has been tested under
2541 dnl GNU/Linux only. We take precedence over inotify, but this makes
2542 dnl only sense when glib has been compiled with inotify support. How
2544 case $with_file_notification,$NOTIFY_OBJ in
2546 EMACS_CHECK_MODULES([GFILENOTIFY], [gio-2.0 >= 2.24])
2547 if test "$HAVE_GFILENOTIFY" = "yes"; then
2548 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2549 NOTIFY_OBJ=gfilenotify.o
2550 NOTIFY_SUMMARY="yes -lgio (gfile)"
2554 dnl inotify is only available on GNU/Linux.
2555 case $with_file_notification,$NOTIFY_OBJ in
2557 AC_CHECK_HEADER(sys/inotify.h)
2558 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2559 AC_CHECK_FUNC(inotify_init1)
2560 if test "$ac_cv_func_inotify_init1" = yes; then
2561 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2562 NOTIFY_OBJ=inotify.o
2563 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2568 case $with_file_notification,$NOTIFY_OBJ in
2569 yes,* | no,* | *,?*) ;;
2570 *) AC_MSG_ERROR([File notification `$with_file_notification' requested but requirements not found.]) ;;
2573 if test -n "$NOTIFY_OBJ"; then
2574 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2576 AC_SUBST(NOTIFY_OBJ)
2577 AC_SUBST(GFILENOTIFY_CFLAGS)
2578 AC_SUBST(GFILENOTIFY_LIBS)
2580 dnl Do not put whitespace before the #include statements below.
2581 dnl Older compilers (eg sunos4 cc) choke on it.
2584 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2585 if test "$with_xaw3d" != no; then
2586 AC_CACHE_VAL(emacs_cv_xaw3d,
2587 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2588 #include <X11/Intrinsic.h>
2589 #include <X11/Xaw3d/Simple.h>]],
2591 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2592 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2593 emacs_cv_xaw3d=no)])
2597 if test $emacs_cv_xaw3d = yes; then
2598 AC_MSG_CHECKING(for xaw3d)
2599 AC_MSG_RESULT([yes; using Lucid toolkit])
2603 AC_DEFINE(HAVE_XAW3D, 1,
2604 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2606 AC_MSG_CHECKING(for xaw3d)
2608 AC_MSG_CHECKING(for libXaw)
2609 AC_CACHE_VAL(emacs_cv_xaw,
2610 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2611 #include <X11/Intrinsic.h>
2612 #include <X11/Xaw/Simple.h>]],
2616 if test $emacs_cv_xaw = yes; then
2617 AC_MSG_RESULT([yes; using Lucid toolkit])
2620 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2621 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2623 AC_MSG_ERROR([No X toolkit could be found.
2624 If you are sure you want Emacs compiled without an X toolkit, pass
2626 to configure. Otherwise, install the development libraries for the toolkit
2627 that you want to use (e.g. Gtk+) and re-run configure.])
2632 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2636 if test "${USE_X_TOOLKIT}" != "none"; then
2637 AC_MSG_CHECKING(X11 toolkit version)
2638 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2639 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2640 [[#if XtSpecificationRelease < 6
2643 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2644 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2645 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2646 AC_MSG_RESULT(6 or newer)
2647 AC_DEFINE(HAVE_X11XTR6, 1,
2648 [Define to 1 if you have the X11R6 or newer version of Xt.])
2649 LIBXTR6="-lSM -lICE"
2651 ## Use libw.a along with X11R6 Xt.
2652 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2655 AC_MSG_RESULT(before 6)
2658 dnl If using toolkit, check whether libXmu.a exists.
2659 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2661 if test x$HAVE_X11XTR6 = xyes; then
2662 OTHERLIBS='-lXt -lSM -lICE'
2666 AC_SEARCH_LIBS([XmuConvertStandardSelection], [Xmu], [], [], [$OTHERLIBS])
2667 if test "X$LIBS" != "X$OLDLIBS"; then
2668 LIBXMU=$ac_cv_search_XmuConvertStandardSelection
2671 dnl ac_cv_search_XmuConvertStandardSelection is also referenced below.
2677 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2678 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2679 if test -d /usr/include/openmotif; then
2680 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2681 emacs_cv_openmotif=yes
2682 case "$canonical" in
2683 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2684 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2687 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2690 emacs_cv_openmotif=no
2692 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2693 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2694 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2697 Motif version prior to 2.1.
2699 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2700 if test $emacs_cv_motif_version_2_1 = yes; then
2701 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2702 if test x$emacs_cv_openmotif = xyes; then
2703 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2706 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2707 # We put this in CFLAGS temporarily to precede other -I options
2708 # that might be in CFLAGS temporarily.
2709 # We put this in CPPFLAGS where it precedes the other -I options.
2710 OLD_CPPFLAGS=$CPPFLAGS
2712 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2713 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2714 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2716 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2717 if test $emacs_cv_lesstif = yes; then
2718 # Make sure this -I option remains in CPPFLAGS after it is set
2719 # back to REAL_CPPFLAGS.
2720 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2721 # have those other -I options anyway. Ultimately, having this
2722 # directory ultimately in CPPFLAGS will be enough.
2723 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2724 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2727 CPPFLAGS=$OLD_CPPFLAGS
2730 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2731 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2734 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2735 dnl using Motif or Xaw3d is available, and unless
2736 dnl --with-toolkit-scroll-bars=no was specified.
2738 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2739 [Define to 1 if we should use toolkit scroll bars.])dnl
2740 USE_TOOLKIT_SCROLL_BARS=no
2741 if test "${with_toolkit_scroll_bars}" != "no"; then
2742 if test "${USE_X_TOOLKIT}" != "none"; then
2743 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2744 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2746 USE_TOOLKIT_SCROLL_BARS=yes
2747 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2748 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2749 USE_TOOLKIT_SCROLL_BARS=yes
2751 elif test "${HAVE_GTK}" = "yes"; then
2752 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2753 USE_TOOLKIT_SCROLL_BARS=yes
2754 elif test "${HAVE_NS}" = "yes"; then
2755 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2756 USE_TOOLKIT_SCROLL_BARS=yes
2757 elif test "${HAVE_W32}" = "yes"; then
2758 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2759 USE_TOOLKIT_SCROLL_BARS=yes
2763 dnl See if XIM is available.
2764 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2765 #include <X11/Xlib.h>
2766 #include <X11/Xresource.h>]],
2767 [[XIMProc callback;]])],
2769 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2772 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2774 if test "${with_xim}" != "no"; then
2775 AC_DEFINE(USE_XIM, 1,
2776 [Define to 1 if we should use XIM, if it is available.])
2780 if test "${HAVE_XIM}" != "no"; then
2782 if test "$GCC" = yes; then
2783 CFLAGS="$CFLAGS --pedantic-errors"
2785 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2786 #include <X11/Xlib.h>
2787 #include <X11/Xresource.h>]],
2793 XPointer *client_data;
2795 /* If we're not using GCC, it's probably not XFree86, and this is
2796 probably right, but we can't use something like --pedantic-errors. */
2797 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2798 char*, XIMProc, XPointer*);
2800 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2802 [emacs_cv_arg6_star=yes])
2803 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2804 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2805 either XPointer or XPointer*.])dnl
2806 if test "$emacs_cv_arg6_star" = yes; then
2807 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2809 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2814 ### Start of font-backend (under any platform) section.
2815 # (nothing here yet -- this is a placeholder)
2816 ### End of font-backend (under any platform) section.
2818 ### Start of font-backend (under X11) section.
2819 if test "${HAVE_X11}" = "yes"; then
2820 ## Use -lXft if available, unless `--with-xft=no'.
2822 if test "x${with_x}" = "xno"; then
2826 if test "$with_xft" != no; then
2827 EMACS_CHECK_MODULES([FONTCONFIG], [fontconfig >= 2.2.0])
2828 with_xft=$HAVE_FONTCONFIG
2831 if test "x${with_xft}" != "xno"; then
2833 EMACS_CHECK_MODULES([XFT], [xft >= 0.13.0], [], [HAVE_XFT=no])
2834 ## Because xftfont.c uses XRenderQueryExtension, we also
2835 ## need to link to -lXrender.
2837 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2838 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2839 OLD_CPPFLAGS="$CPPFLAGS"
2840 OLD_CFLAGS="$CFLAGS"
2842 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2843 CFLAGS="$CFLAGS $XFT_CFLAGS"
2844 XFT_LIBS="-lXrender $XFT_LIBS"
2845 LIBS="$XFT_LIBS $LIBS"
2846 AC_CHECK_HEADER(X11/Xft/Xft.h,
2847 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
2848 [[#include <X11/X.h>]])
2850 if test "${HAVE_XFT}" = "yes"; then
2851 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2853 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2854 fi # "${HAVE_XFT}" = "yes"
2855 CPPFLAGS=$OLD_CPPFLAGS
2858 fi # "$HAVE_XFT" != no
2859 fi # "x${with_xft}" != "xno"
2861 ## We used to allow building with FreeType and without Xft.
2862 ## However, the ftx font backend driver is not in good shape.
2863 if test "$HAVE_XFT" != "yes"; then
2864 dnl For the "Does Emacs use" message at the end.
2868 dnl Strict linkers fail with
2869 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2870 dnl if -lfreetype is not specified.
2871 dnl The following is needed to set FREETYPE_LIBS.
2872 EMACS_CHECK_MODULES([FREETYPE], [freetype2])
2874 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2878 if test "${HAVE_FREETYPE}" = "yes"; then
2879 AC_DEFINE(HAVE_FREETYPE, 1,
2880 [Define to 1 if using the freetype and fontconfig libraries.])
2881 if test "${with_libotf}" != "no"; then
2882 EMACS_CHECK_MODULES([LIBOTF], [libotf])
2883 if test "$HAVE_LIBOTF" = "yes"; then
2884 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2885 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2886 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2887 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2888 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2889 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2890 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2894 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2895 dnl Does the new font backend require it, or can it work without it?
2899 if test "${HAVE_LIBOTF}" = yes; then
2900 if test "${with_m17n_flt}" != "no"; then
2901 EMACS_CHECK_MODULES([M17N_FLT], [m17n-flt])
2902 if test "$HAVE_M17N_FLT" = "yes"; then
2903 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2914 ### End of font-backend (under X11) section.
2916 AC_SUBST(FREETYPE_CFLAGS)
2917 AC_SUBST(FREETYPE_LIBS)
2918 AC_SUBST(FONTCONFIG_CFLAGS)
2919 AC_SUBST(FONTCONFIG_LIBS)
2920 AC_SUBST(LIBOTF_CFLAGS)
2921 AC_SUBST(LIBOTF_LIBS)
2922 AC_SUBST(M17N_FLT_CFLAGS)
2923 AC_SUBST(M17N_FLT_LIBS)
2925 ### Use -lXpm if available, unless `--with-xpm=no'.
2926 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
2929 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
2930 if test "${with_xpm}" != "no"; then
2931 SAVE_CPPFLAGS="$CPPFLAGS"
2932 SAVE_LDFLAGS="$LDFLAGS"
2933 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
2934 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
2935 AC_CHECK_HEADER(X11/xpm.h,
2936 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
2937 if test "${HAVE_XPM}" = "yes"; then
2938 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2939 AC_EGREP_CPP(no_return_alloc_pixels,
2940 [#include "X11/xpm.h"
2941 #ifndef XpmReturnAllocPixels
2942 no_return_alloc_pixels
2944 ], HAVE_XPM=no, HAVE_XPM=yes)
2946 if test "${HAVE_XPM}" = "yes"; then
2947 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
2951 CPPFLAGS="$SAVE_CPPFLAGS"
2952 LDFLAGS="$SAVE_LDFLAGS"
2957 if test "${HAVE_XPM}" = "yes"; then
2958 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2963 if test "${HAVE_X11}" = "yes"; then
2964 dnl Avoid Xpm on AIX unless requested, as it crashes; see Bug#17598.
2965 test "$opsys$with_xpm_set" = aix4-2 && with_xpm=no
2967 if test "${with_xpm}" != "no"; then
2968 AC_CHECK_HEADER(X11/xpm.h,
2969 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2970 if test "${HAVE_XPM}" = "yes"; then
2971 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2972 AC_EGREP_CPP(no_return_alloc_pixels,
2973 [#include "X11/xpm.h"
2974 #ifndef XpmReturnAllocPixels
2975 no_return_alloc_pixels
2977 ], HAVE_XPM=no, HAVE_XPM=yes)
2979 if test "${HAVE_XPM}" = "yes"; then
2987 if test "${HAVE_XPM}" = "yes"; then
2988 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2990 elif test "$opsys,$LUCID_LIBW" = aix4-2,-lXaw; then
2991 dnl AIX -lXaw needs -lXpm linked too; see Bug#17598 Message#152.
2996 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
2997 ### slightly different requirements wrt image libraries (it doesn't
2998 ### use -lXpm because it loads the xpm shared library dynamically at
3000 if test "${opsys}" = "mingw32"; then
3001 if test "${with_xpm}" != "no"; then
3002 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
3006 if test "${HAVE_XPM}" = "yes"; then
3007 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3013 ### Use -ljpeg if available, unless `--with-jpeg=no'.
3014 ### mingw32 doesn't use -ljpeg, since it loads the library dynamically.
3017 if test "${opsys}" = "mingw32"; then
3018 if test "${with_jpeg}" != "no"; then
3019 dnl Checking for jpeglib.h can lose because of a redefinition of
3021 AC_CHECK_HEADER(jerror.h, HAVE_JPEG=yes, HAVE_JPEG=no)
3023 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
3024 if test "${HAVE_JPEG}" = "yes"; then
3025 AC_DEFINE(HAVE_JPEG)
3026 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
3027 [#include <jpeglib.h>
3028 version=JPEG_LIB_VERSION
3030 [AC_DEFINE(HAVE_JPEG)],
3031 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
3034 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3035 if test "${with_jpeg}" != "no"; then
3036 dnl Checking for jpeglib.h can lose because of a redefinition of
3038 AC_CHECK_HEADER(jerror.h,
3039 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
3042 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
3043 if test "${HAVE_JPEG}" = "yes"; then
3044 AC_DEFINE(HAVE_JPEG)
3045 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
3046 [#include <jpeglib.h>
3047 version=JPEG_LIB_VERSION
3049 [AC_DEFINE(HAVE_JPEG)],
3050 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
3053 if test "${HAVE_JPEG}" = "yes"; then
3061 if test "${with_zlib}" != "no"; then
3063 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
3065 case $ac_cv_search_inflateEnd in
3066 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3069 if test "${HAVE_ZLIB}" = "yes"; then
3070 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3071 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3072 if test "${opsys}" = "mingw32"; then
3078 ### Use -lpng if available, unless `--with-png=no'.
3082 if test "${NS_IMPL_COCOA}" = yes; then
3084 elif test "${with_png}" != no; then
3085 # mingw32 loads the library dynamically.
3086 if test "$opsys" = mingw32; then
3087 AC_CHECK_HEADER([png.h], [HAVE_PNG=yes])
3088 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3089 AC_MSG_CHECKING([for png])
3090 png_cflags=`(libpng-config --cflags) 2>&AS_MESSAGE_LOG_FD` &&
3091 png_libs=`(libpng-config --libs) 2>&AS_MESSAGE_LOG_FD` || {
3092 # libpng-config does not work; configure by hand.
3093 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
3094 # in /usr/include/libpng.
3095 if test -r /usr/include/libpng/png.h &&
3096 test ! -r /usr/include/png.h; then
3097 png_cflags=-I/usr/include/libpng
3105 CFLAGS="$CFLAGS $png_cflags"
3106 LIBS="$png_libs -lz -lm $LIBS"
3108 [AC_LANG_PROGRAM([[#include <png.h>]],
3109 [[return !png_get_channels (0, 0);]])],
3111 PNG_CFLAGS=`AS_ECHO(["$png_cflags"]) | sed -e "$edit_cflags"`
3113 # $LIBPNG requires explicit -lz in some cases.
3114 # We don't know what those cases are, exactly, so play it safe and
3115 # append -lz to any nonempty $LIBPNG, unless we're already using LIBZ.
3116 if test -n "$LIBPNG" && test -z "$LIBZ"; then
3117 LIBPNG="$LIBPNG -lz"
3121 AC_MSG_RESULT([$HAVE_PNG])
3124 if test $HAVE_PNG = yes; then
3125 AC_DEFINE([HAVE_PNG], [1], [Define to 1 if you have the png library.])
3128 CFLAGS="$CFLAGS $PNG_CFLAGS"
3129 AC_CHECK_DECL([png_longjmp],
3131 [AC_DEFINE([PNG_DEPSTRUCT], [],
3132 [Define to empty to suppress deprecation warnings when building
3133 with --enable-gcc-warnings and with libpng versions before 1.5,
3134 which lack png_longjmp.])],
3140 AC_SUBST(PNG_CFLAGS)
3142 ### Use -ltiff if available, unless `--with-tiff=no'.
3143 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3146 if test "${opsys}" = "mingw32"; then
3147 if test "${with_tiff}" != "no"; then
3148 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3150 if test "${HAVE_TIFF}" = "yes"; then
3151 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3153 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3154 if test "${with_tiff}" != "no"; then
3155 AC_CHECK_HEADER(tiffio.h,
3157 # At least one tiff package requires the jpeg library.
3158 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3159 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3162 if test "${HAVE_TIFF}" = "yes"; then
3163 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3164 dnl FIXME -lz -lm, as per libpng?
3170 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
3171 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3174 if test "${opsys}" = "mingw32"; then
3175 if test "${with_gif}" != "no"; then
3176 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3178 if test "${HAVE_GIF}" = "yes"; then
3179 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3181 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3182 || test "${HAVE_W32}" = "yes"; then
3183 AC_CHECK_HEADER(gif_lib.h,
3184 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3185 # Earlier versions can crash Emacs, but version 5.0 removes EGifPutExtensionLast.
3186 [AC_CHECK_LIB(gif, GifMakeMapObject, HAVE_GIF=yes,
3187 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])])
3189 if test "$HAVE_GIF" = yes; then
3191 elif test "$HAVE_GIF" = maybe; then
3192 # If gif_lib.h but no libgif, try libungif.
3193 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3194 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3197 if test "${HAVE_GIF}" = "yes"; then
3198 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3203 dnl Check for required libraries.
3204 if test "${HAVE_X11}" = "yes"; then
3207 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3208 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3209 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3210 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3211 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3212 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3213 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3214 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3215 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3216 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3218 if test "X${MISSING}" != X; then
3219 AC_MSG_ERROR([The following required libraries were not found:
3221 Maybe some development libraries/packages are missing?
3222 If you don't want to link with them give
3224 as options to configure])
3228 ### Use -lgpm if available, unless `--with-gpm=no'.
3231 if test "${with_gpm}" != "no"; then
3232 AC_CHECK_HEADER(gpm.h,
3233 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3235 if test "${HAVE_GPM}" = "yes"; then
3236 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3242 dnl Check for malloc/malloc.h on darwin
3243 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3246 ### Use NeXTstep API to implement GUI.
3247 if test "${HAVE_NS}" = "yes"; then
3248 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
3249 if test "${NS_IMPL_COCOA}" = "yes"; then
3250 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
3252 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3253 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3254 # See also .m.o rule in Makefile.in */
3255 # FIXME: are all these flags really needed? Document here why. */
3256 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3257 ## Extra CFLAGS applied to src/*.m files.
3258 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3263 ### Use session management (-lSM -lICE) if available
3266 if test "${HAVE_X11}" = "yes"; then
3267 AC_CHECK_HEADER(X11/SM/SMlib.h,
3268 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3270 if test "${HAVE_X_SM}" = "yes"; then
3271 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3277 ### Use XRandr (-lXrandr) if available
3279 if test "${HAVE_X11}" = "yes"; then
3280 XRANDR_REQUIRED=1.2.2
3281 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3282 EMACS_CHECK_MODULES([XRANDR], [$XRANDR_MODULES])
3283 if test $HAVE_XRANDR = no; then
3284 # Test old way in case pkg-config doesn't have it (older machines).
3285 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3286 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)])
3287 if test $HAVE_XRANDR = yes; then
3288 XRANDR_LIBS=-lXrandr
3291 if test $HAVE_XRANDR = yes; then
3292 SAVE_CFLAGS="$CFLAGS"
3294 CFLAGS="$XRANDR_CFLAGS $CFLAGS"
3295 LIBS="$XRANDR_LIBS $LIBS"
3296 AC_CHECK_FUNCS(XRRGetOutputPrimary XRRGetScreenResourcesCurrent)
3297 CFLAGS="$SAVE_CFLAGS"
3300 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3303 AC_SUBST(XRANDR_CFLAGS)
3304 AC_SUBST(XRANDR_LIBS)
3306 ### Use Xinerama (-lXinerama) if available
3308 if test "${HAVE_X11}" = "yes"; then
3309 XINERAMA_REQUIRED=1.0.2
3310 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3311 EMACS_CHECK_MODULES([XINERAMA], [$XINERAMA_MODULES])
3312 if test $HAVE_XINERAMA = no; then
3313 # Test old way in case pkg-config doesn't have it (older machines).
3314 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3315 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3316 if test $HAVE_XINERAMA = yes; then
3317 XINERAMA_LIBS=-lXinerama
3320 if test $HAVE_XINERAMA = yes; then
3321 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3324 AC_SUBST(XINERAMA_CFLAGS)
3325 AC_SUBST(XINERAMA_LIBS)
3327 ### Use Xfixes (-lXfixes) if available
3329 if test "${HAVE_X11}" = "yes"; then
3330 XFIXES_REQUIRED=4.0.0
3331 XFIXES_MODULES="xfixes >= $XFIXES_REQUIRED"
3332 EMACS_CHECK_MODULES([XFIXES], [$XFIXES_MODULES])
3333 if test $HAVE_XFIXES = no; then
3334 # Test old way in case pkg-config doesn't have it (older machines).
3335 AC_CHECK_HEADER(X11/extensions/Xfixes.h,
3336 [AC_CHECK_LIB(Xfixes, XFixesHideCursor, HAVE_XFIXES=yes)])
3337 if test $HAVE_XFIXES = yes; then
3338 XFIXES_LIBS=-lXfixes
3341 if test $HAVE_XFIXES = yes; then
3342 AC_DEFINE(HAVE_XFIXES, 1, [Define to 1 if you have the Xfixes extension.])
3345 AC_SUBST(XFIXES_CFLAGS)
3346 AC_SUBST(XFIXES_LIBS)
3348 ### Use libxml (-lxml2) if available
3349 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3351 if test "${with_xml2}" != "no"; then
3352 ### I'm not sure what the version number should be, so I just guessed.
3353 EMACS_CHECK_MODULES([LIBXML2], [libxml-2.0 > 2.6.17])
3354 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3355 if test "${HAVE_LIBXML2}" != "yes" -a "$opsys" = "darwin"; then
3356 SAVE_CPPFLAGS="$CPPFLAGS"
3357 CPPFLAGS="$CPPFLAGS -I$xcsdkdir/usr/include/libxml2"
3358 AC_CHECK_HEADER(libxml/HTMLparser.h,
3359 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3360 [#include <libxml/HTMLparser.h>])])
3361 CPPFLAGS="$SAVE_CPPFLAGS"
3362 if test "${HAVE_LIBXML2}" = "yes"; then
3363 LIBXML2_CFLAGS="-I'$xcsdkdir/usr/include/libxml2'"
3364 LIBXML2_LIBS="-lxml2"
3367 if test "${HAVE_LIBXML2}" = "yes"; then
3368 if test "${opsys}" != "mingw32"; then
3369 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no
3374 if test "${HAVE_LIBXML2}" = "yes"; then
3375 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3382 AC_SUBST(LIBXML2_LIBS)
3383 AC_SUBST(LIBXML2_CFLAGS)
3385 # If netdb.h doesn't declare h_errno, we must declare it by hand.
3386 # On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
3387 if test "${opsys}" = "mingw32"; then
3388 emacs_cv_netdb_declares_h_errno=yes
3390 AC_CACHE_CHECK(whether netdb declares h_errno,
3391 emacs_cv_netdb_declares_h_errno,
3392 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
3393 [[return h_errno;]])],
3394 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
3395 if test $emacs_cv_netdb_declares_h_errno = yes; then
3396 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
3399 # Check for mail-locking functions in a "mail" library. Probably this should
3400 # have the same check as for liblockfile below.
3401 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
3402 if test $have_mail = yes; then
3404 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
3407 LIBS="$LIBS_MAIL $LIBS"
3408 AC_CHECK_FUNCS(touchlock)
3413 dnl Debian, at least:
3414 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
3415 if test $have_lockfile = yes; then
3416 LIBS_MAIL=-llockfile
3417 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
3419 # If we have the shared liblockfile, assume we must use it for mail
3420 # locking (e.g. Debian). If we couldn't link against liblockfile
3421 # (no liblockfile.a installed), ensure that we don't need to.
3422 dnl This works for files generally, not just executables.
3423 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3424 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
3425 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
3426 if test $ac_cv_prog_liblockfile = yes; then
3427 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3428 This probably means that movemail could lose mail.
3429 There may be a `development' package to install containing liblockfile.])
3432 AC_CHECK_HEADERS_ONCE(maillock.h)
3435 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3436 ## interlock access to the mail spool. The alternative is a lock file named
3437 ## /usr/spool/mail/$USER.lock.
3440 aix4-2) mail_lock="lockf" ;;
3442 gnu|freebsd|dragonfly|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
3444 ## On GNU/Linux systems, both methods are used by various mail programs.
3445 ## I assume most people are using newer mailers that have heard of flock.
3446 ## Change this if you need to.
3447 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
3448 ## configure gets the right answers, and that means *NOT* using flock.
3449 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3450 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
3451 ## Debian maintainer hasn't provided a clean fix for Emacs.
3452 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
3453 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3454 ## correct logic. -- fx
3455 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3456 ## liblockfile is a Free Software replacement for libmail, used on
3457 ## Debian systems and elsewhere. -rfr.
3460 if test $have_mail = yes || test $have_lockfile = yes; then
3461 test $ac_cv_header_maillock_h = yes && mail_lock=no
3466 mail_lock="none-needed" ;;
3470 case "$mail_lock" in
3471 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3473 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3477 *) BLESSMAIL_TARGET="need-blessmail" ;;
3479 AC_SUBST(BLESSMAIL_TARGET)
3482 LIBS="$LIB_PTHREAD $LIB_MATH $LIBS"
3483 AC_CHECK_FUNCS(accept4 gethostname \
3484 getrusage get_current_dir_name \
3485 lrand48 random rint \
3486 select getpagesize setlocale \
3487 getrlimit setrlimit shutdown getaddrinfo \
3488 pthread_sigmask strsignal setitimer \
3489 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
3491 getpwent endpwent getgrent endgrent \
3492 cfmakeraw cfsetspeed copysign __executable_start log2)
3495 dnl No need to check for aligned_alloc and posix_memalign if using
3496 dnl gmalloc.o, as it supplies them. Don't use these functions on
3497 dnl Darwin as they are incompatible with unexmacosx.c.
3498 if test -z "$GMALLOC_OBJ" && test "$opsys" != darwin; then
3499 AC_CHECK_FUNCS([aligned_alloc posix_memalign], [break])
3502 dnl Cannot use AC_CHECK_FUNCS
3503 AC_CACHE_CHECK([for __builtin_unwind_init],
3504 emacs_cv_func___builtin_unwind_init,
3505 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3506 emacs_cv_func___builtin_unwind_init=yes,
3507 emacs_cv_func___builtin_unwind_init=no)])
3508 if test $emacs_cv_func___builtin_unwind_init = yes; then
3509 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3510 [Define to 1 if you have the `__builtin_unwind_init' function.])
3513 AC_CHECK_HEADERS_ONCE(sys/un.h)
3518 AC_CHECK_FUNCS(grantpt)
3520 # PTY-related GNU extensions.
3521 AC_CHECK_FUNCS(getpt posix_openpt)
3523 # Check this now, so that we will NOT find the above functions in ncurses.
3524 # That is because we have not set up to link ncurses in lib-src.
3525 # It's better to believe a function is not available
3526 # than to expect to find it in ncurses.
3527 # Also we need tputs and friends to be able to build at all.
3528 AC_MSG_CHECKING([for library containing tputs])
3529 # Run a test program that contains a call to tputs, a call that is
3530 # never executed. This tests whether a pre-'main' dynamic linker
3531 # works with the library. It's too much trouble to actually call
3532 # tputs in the test program, due to portability hassles. When
3533 # cross-compiling, assume the test program will run if it links.
3534 AC_DEFUN([tputs_link_source], [
3536 [[extern void tputs (const char *, int, int (*)(int));
3537 int main (int argc, char **argv)
3540 tputs (argv[0], 0, 0);
3544 if test "${opsys}" = "mingw32"; then
3547 # Maybe curses should be tried earlier?
3548 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3549 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3551 if test -z "$tputs_library"; then
3555 LIBS_TERMCAP=-l$tputs_library
3557 LIBS="$LIBS_TERMCAP $LIBS"
3559 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3560 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3562 if test "X$msg" != Xno; then
3567 AC_MSG_RESULT([$msg])
3568 if test "X$msg" = Xno; then
3569 AC_MSG_ERROR([The required function `tputs' was not found in any library.
3570 The following libraries were tried (in order):
3571 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3572 Please try installing whichever of these libraries is most appropriate
3573 for your system, together with its header files.
3574 For example, a libncurses-dev(el) or similar package.])
3577 ## Use termcap instead of terminfo?
3578 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3580 ## FIXME? In the cases below where we unconditionally set
3581 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3582 ## if that was found above to have tputs.
3583 ## Should we use the gnu* logic everywhere?
3585 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3586 ## The ncurses library has been moved out of the System framework in
3587 ## Mac OS X 10.2. So if configure detects it, set the command-line
3588 ## option to use it.
3589 darwin) LIBS_TERMCAP="-lncurses" ;;
3591 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3594 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3595 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3596 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3597 [[#if __FreeBSD_version < 400000
3600 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3602 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3604 if test $emacs_cv_freebsd_terminfo = yes; then
3605 LIBS_TERMCAP="-lncurses"
3608 LIBS_TERMCAP="-ltermcap"
3618 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3620 LIBS_TERMCAP="-ltermcap"
3624 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
3626 ## hpux: Make sure we get select from libc rather than from libcurses
3627 ## because libcurses on HPUX 10.10 has a broken version of select.
3628 ## We used to use -lc -lcurses, but this may be cleaner.
3629 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3630 # set that way, now it uses the default). Isn't this a contradiction?
3631 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3635 TERMCAP_OBJ=tparam.o
3636 if test $TERMINFO = yes; then
3637 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3638 TERMCAP_OBJ=terminfo.o
3640 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
3641 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
3643 AC_SUBST(LIBS_TERMCAP)
3644 AC_SUBST(TERMCAP_OBJ)
3647 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3648 # On Darwin, res_init appears not to be useful: see bug#562 and
3649 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3652 if test $opsys != darwin; then
3654 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3655 #include <arpa/nameser.h>
3656 #include <resolv.h>]],
3657 [[return res_init();]])],
3658 have_res_init=yes, have_res_init=no)
3659 if test "$have_res_init" = no; then
3661 LIBS="$LIBS -lresolv"
3662 AC_MSG_CHECKING(for res_init with -lresolv)
3663 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3664 #include <arpa/nameser.h>
3665 #include <resolv.h>]],
3666 [[return res_init();]])],
3667 have_res_init=yes, have_res_init=no)
3668 AC_MSG_RESULT($have_res_init)
3669 if test "$have_res_init" = yes ; then
3675 if test "$have_res_init" = yes; then
3676 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3680 # Do we need the Hesiod library to provide the support routines?
3681 dnl FIXME? Should we be skipping this on Darwin too?
3683 if test "$with_hesiod" != no ; then
3684 # Don't set $LIBS here -- see comments above. FIXME which comments?
3685 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3686 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3687 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3688 if test "$resolv" = yes ; then
3693 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3694 hesiod=yes, :, $RESOLVLIB)])
3696 if test x"$hesiod" = xyes; then
3702 # Do we need libresolv (due to res_init or Hesiod)?
3703 if test "$resolv" = yes && test $opsys != darwin; then
3710 # These tell us which Kerberos-related libraries to use.
3717 if test "${with_kerberos}" != no; then
3719 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3720 if test $have_com_err = yes; then
3721 COM_ERRLIB=-lcom_err
3722 LIBS="$COM_ERRLIB $LIBS"
3724 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3725 if test $have_crypto = yes; then
3727 LIBS="$CRYPTOLIB $LIBS"
3729 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3730 if test $have_k5crypto = yes; then
3731 CRYPTOLIB=-lk5crypto
3732 LIBS="$CRYPTOLIB $LIBS"
3734 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3735 if test $have_krb5=yes; then
3737 LIBS="$KRB5LIB $LIBS"
3739 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3740 if test "${with_kerberos5}" = no; then
3741 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3742 if test $have_des425 = yes; then
3744 LIBS="$DESLIB $LIBS"
3746 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3747 if test $have_des = yes; then
3749 LIBS="$DESLIB $LIBS"
3752 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3753 if test $have_krb4 = yes; then
3755 LIBS="$KRB4LIB $LIBS"
3757 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3758 if test $have_krb = yes; then
3760 LIBS="$KRB4LIB $LIBS"
3765 if test "${with_kerberos5}" != no; then
3766 AC_CHECK_HEADERS(krb5.h,
3767 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3768 [#include <krb5.h>])])
3770 AC_CHECK_HEADERS(krb.h,,
3771 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3772 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3774 AC_CHECK_HEADERS(com_err.h)
3778 AC_SUBST(COM_ERRLIB)
3784 AC_CHECK_HEADERS(valgrind/valgrind.h)
3786 AC_CHECK_FUNCS_ONCE(tzset)
3787 AC_MSG_CHECKING(whether localtime caches TZ)
3788 AC_CACHE_VAL(emacs_cv_localtime_cache,
3789 [if test x$ac_cv_func_tzset = xyes; then
3790 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3791 char TZ_GMT0[] = "TZ=GMT0";
3792 char TZ_PST8[] = "TZ=PST8";
3795 time_t now = time ((time_t *) 0);
3796 int hour_GMT0, hour_unset;
3797 if (putenv (TZ_GMT0) != 0)
3799 hour_GMT0 = localtime (&now)->tm_hour;
3801 hour_unset = localtime (&now)->tm_hour;
3802 if (putenv (TZ_PST8) != 0)
3804 if (localtime (&now)->tm_hour == hour_GMT0)
3807 if (localtime (&now)->tm_hour != hour_unset)
3810 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3811 [# If we have tzset, assume the worst when cross-compiling.
3812 emacs_cv_localtime_cache=yes])
3814 # If we lack tzset, report that localtime does not cache TZ,
3815 # since we can't invalidate the cache if we don't have tzset.
3816 emacs_cv_localtime_cache=no
3818 AC_MSG_RESULT($emacs_cv_localtime_cache)
3819 if test $emacs_cv_localtime_cache = yes; then
3820 AC_DEFINE(LOCALTIME_CACHE, 1,
3821 [Define to 1 if localtime caches TZ.])
3825 AC_CHECK_FUNC(socket, , ok_so_far=no)
3826 if test $ok_so_far = yes; then
3827 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3829 if test $ok_so_far = yes; then
3830 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3832 if test $ok_so_far = yes; then
3833 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3834 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3835 [Define to 1 if you have inet sockets.])
3840 AC_CHECK_FUNCS(snprintf)
3842 dnl Check for glib. This differs from other library checks in that
3843 dnl Emacs need not link to glib unless some other library is already
3844 dnl linking to glib. Although glib provides no facilities that Emacs
3845 dnl needs for its own purposes, when glib is present Emacs needs to
3846 dnl use primitives like g_main_context_query to avoid clashing with
3847 dnl glib at a low level.
3849 dnl Check this late, since it depends on $GTK_CFLAGS etc.
3853 CFLAGS="$CFLAGS $GTK_CFLAGS $RSVG_CFLAGS $DBUS_CFLAGS $SETTINGS_CFLAGS"
3854 LIBS="$LIBS $GTK_LIBS $RSVG_LIBS $DBUS_LIBS $SETTINGS_LIBS"
3855 CFLAGS="$CFLAGS $GFILENOTIFY_CFLAGS"
3856 LIBS="$LIBS $GFILENOTIFY_LIBS"
3857 AC_MSG_CHECKING([whether GLib is linked in])
3858 AC_LINK_IFELSE([AC_LANG_PROGRAM(
3861 [[g_print ("Hello world");]])],
3864 AC_MSG_RESULT([$links_glib])
3865 if test "${links_glib}" = "yes"; then
3866 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
3867 if test "$HAVE_NS" = no;then
3875 dnl Adapted from Haible's version.
3876 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3877 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3878 [[char* cs = nl_langinfo(CODESET);]])],
3879 emacs_cv_langinfo_codeset=yes,
3880 emacs_cv_langinfo_codeset=no)
3882 if test $emacs_cv_langinfo_codeset = yes; then
3883 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3884 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3889 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3890 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3891 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3892 if test "$emacs_cv_c_restrict_arr" = yes; then
3893 AC_DEFINE(__restrict_arr, __restrict,
3894 [Define to compiler's equivalent of C99 restrict keyword in array
3895 declarations. Define as empty for no equivalent.])
3898 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3899 dnl how the tty code is related to POSIX and/or other versions of termios.
3900 dnl The following looks like a useful start.
3902 dnl AC_SYS_POSIX_TERMIOS
3903 dnl if test $ac_cv_sys_posix_termios = yes; then
3904 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3905 dnl and macros for terminal control.])
3906 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3909 dnl Turned on June 1996 supposing nobody will mind it.
3910 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
3911 if test "${opsys}" != "mingw32"; then
3912 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3913 in the full name stands for the login id.])
3916 dnl Everybody supports this, except MS.
3917 dnl Seems like the kind of thing we should be testing for, though.
3918 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3919 if test "${opsys}" != "mingw32"; then
3920 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3923 dnl Everybody supports this, except MS-DOS.
3924 dnl Seems like the kind of thing we should be testing for, though.
3925 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3926 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3927 4.2-compatible sockets.])
3929 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3931 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
3932 a null file, or a data sink.])
3933 if test "${opsys}" = "mingw32"; then
3934 AC_DEFINE(NULL_DEVICE, ["NUL:"])
3936 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
3939 if test "${opsys}" = "mingw32"; then
3944 AC_DEFINE_UNQUOTED(SEPCHAR, ['$SEPCHAR'], [Character that separates PATH elements.])
3945 dnl This is for MinGW, and is used in test/automated/Makefile.in.
3946 dnl The MSYS Bash has heuristics for replacing ':' with ';' when it
3947 dnl decides that a command-line argument to be passed to a MinGW program
3948 dnl is a PATH-style list of directories. But that heuristics plays it
3949 dnl safe, and only does the replacement when it is _absolutely_ sure it
3950 dnl sees a colon-separated list of file names; e.g. ":." is left alone,
3951 dnl which breaks in-tree builds. So we do this manually instead.
3952 dnl Note that we cannot rely on PATH_SEPARATOR, as that one will always
3953 dnl be computed as ':' in MSYS Bash.
3956 dnl Everybody supports this, except MS-DOS.
3957 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3959 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3962 AC_DEFINE(DIRECTORY_SEP, ['/'],
3963 [Character that separates directories in a file name.])
3965 if test "${opsys}" = "mingw32"; then
3966 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
3967 [Returns true if character is a device separator.])
3969 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
3970 [Returns true if character is a directory separator.])
3972 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
3973 [Returns true if character is any form of separator.])
3975 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
3976 [Returns true if character is a device separator.])
3978 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
3979 [Returns true if character is a directory separator.])
3981 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
3982 [Returns true if character is any form of separator.])
3985 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
3989 dnl Unfortunately without libXmu we cannot support EditRes.
3990 if test "x$ac_cv_search_XmuConvertStandardSelection" = xno; then
3991 AC_DEFINE(NO_EDITRES, 1)
3996 dnl Assar Westerlund <assar@sics.se> says this is necessary for
3997 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
3998 AC_DEFINE(NO_EDITRES, 1)
4004 irix6-5 | sol2* | unixware )
4005 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
4006 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
4007 dnl need the constant to dimension an array. So wire in the appropriate
4009 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
4013 emacs_broken_SIGIO=no
4016 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
4017 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
4018 hpux* | irix6-5 | openbsd | sol2* | unixware )
4019 emacs_broken_SIGIO=yes
4023 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
4024 dnl the way this system works, libc functions that return malloced
4025 dnl memory use the libc malloc implementation. Calling xfree or
4026 dnl xrealloc on the results of such functions results in a crash.
4028 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
4029 dnl but that does not currently work on this system.
4031 dnl It is possible to completely override the malloc implementation on
4032 dnl AIX, but that involves putting the malloc functions in a shared
4033 dnl library and setting the MALLOCTYPE environment variable to point to
4034 dnl that shared library.
4036 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
4037 dnl to avoid a crash just use the Emacs implementation for that function.
4039 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
4040 dnl of this file, so that we do not check for get_current_dir_name
4041 dnl on AIX. But that might be fragile if something else ends
4042 dnl up testing for get_current_dir_name as a dependency.
4043 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
4044 get_current_dir_name should not be used.])
4048 dnl Circumvent a bug in FreeBSD. In the following sequence of
4049 dnl writes/reads on a PTY, read(2) returns bogus data:
4051 dnl write(2) 1022 bytes
4052 dnl write(2) 954 bytes, get EAGAIN
4053 dnl read(2) 1024 bytes in process_read_output
4054 dnl read(2) 11 bytes in process_read_output
4056 dnl That is, read(2) returns more bytes than have ever been written
4057 dnl successfully. The 1033 bytes read are the 1022 bytes written
4058 dnl successfully after processing (for example with CRs added if the
4059 dnl terminal is set up that way which it is here). The same bytes will
4060 dnl be seen again in a later read(2), without the CRs.
4061 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
4062 work around an issue when reading from a PTY.])
4068 dnl FIXME Can't we test if this exists (eg /proc/$$)?
4069 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
4074 darwin | dragonfly | freebsd | netbsd | openbsd )
4075 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
4076 close a pty to make it a controlling terminal (it is already a
4077 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
4081 dnl FIXME Surely we can test for this rather than hard-code it.
4083 netbsd | openbsd) sound_device="/dev/audio" ;;
4084 *) sound_device="/dev/dsp" ;;
4088 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
4089 [Name of the default sound device.])
4092 dnl Emacs can read input using SIGIO and buffering characters itself,
4093 dnl or using CBREAK mode and making C-g cause SIGINT.
4094 dnl The choice is controlled by the variable interrupt_input.
4096 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
4098 dnl Emacs uses the presence of the USABLE_SIGIO macro
4099 dnl to indicate whether or not signal-driven I/O is possible. It uses
4100 dnl INTERRUPT_INPUT to decide whether to use it by default.
4102 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
4103 dnl CBREAK mode has two disadvantages
4104 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
4105 dnl I hear that in system V this problem does not exist.
4106 dnl 2) Control-G causes output to be discarded.
4107 dnl I do not know whether this can be fixed in system V.
4109 dnl Another method of doing input is planned but not implemented.
4110 dnl It would have Emacs fork off a separate process
4111 dnl to read the input and send it to the true Emacs process
4114 darwin | gnu-linux | gnu-kfreebsd )
4115 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
4120 dnl If the system's imake configuration file defines `NeedWidePrototypes'
4121 dnl as `NO', we must define NARROWPROTO manually. Such a define is
4122 dnl generated in the Makefile generated by `xmkmf'. If we don't define
4123 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
4124 dnl taking float or double parameters.
4126 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
4127 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
4128 file defines `NeedWidePrototypes' as `NO'.])
4133 dnl Used in process.c, this must be a loop, even if it only runs once.
4134 dnl (Except on SGI; see below. Take that, clarity and consistency!)
4135 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
4136 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
4137 dnl trying suffixes 0-16.
4138 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
4139 first PTY, if PTYs are supported.])
4140 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
4141 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
4142 end of a PTY, if non-standard.])
4143 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
4144 end of a PTY, if non-standard.])
4148 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4149 dnl You allocate a pty by opening /dev/ptc to get the master side.
4150 dnl To get the name of the slave side, you just ttyname() the master side.
4151 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4152 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4156 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4157 dnl multi-line AC_DEFINEs are hard. :(
4158 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)])
4159 AC_DEFINE(PTY_NAME_SPRINTF, [])
4160 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4163 dnl FIXME? Maybe use same as freebsd - see bug#12040.
4165 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4166 dnl Not used, because PTY_ITERATION is defined.
4167 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4168 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
4169 dnl But we don't have to block SIGCHLD because it is blocked in the
4170 dnl implementation of grantpt.
4171 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (false)])
4172 AC_DEFINE(PTY_NAME_SPRINTF, [])
4173 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4177 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4180 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd )
4182 if test "x$ac_cv_func_grantpt" = xyes; then
4183 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4184 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4185 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4186 dnl to prevent sigchld_handler from intercepting the child's death.
4187 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); }])
4188 dnl if HAVE_POSIX_OPENPT
4189 if test "x$ac_cv_func_posix_openpt" = xyes; then
4190 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (false)])
4191 AC_DEFINE(PTY_NAME_SPRINTF, [])
4193 elif test "x$ac_cv_func_getpt" = xyes; then
4194 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4195 AC_DEFINE(PTY_NAME_SPRINTF, [])
4197 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4200 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4205 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4206 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4207 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4211 dnl It looks like this cannot be right, because it is not a loop.
4212 dnl However, process.c actually does this:
4218 dnl which presumably makes it OK, since irix == sgi (?).
4219 dnl FIXME it seems like this special treatment is unnecessary?
4220 dnl Why can't irix use a single-trip loop like eg cygwin?
4221 AC_DEFINE(PTY_ITERATION, [])
4222 dnl Not used, because PTY_ITERATION is defined.
4223 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
4224 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); }])
4225 dnl No need to get the pty name at all.
4226 AC_DEFINE(PTY_NAME_SPRINTF, [])
4227 dnl No need to use sprintf to get the tty name--we get that from _getpty.
4228 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4232 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
4233 dnl from intercepting that death. If any child but grantpt's should die
4234 dnl within, it should be caught after sigrelse(2).
4235 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); }])
4239 dnl Comments are as per sol2*.
4240 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); }])
4247 dnl This change means that we don't loop through allocate_pty too
4248 dnl many times in the (rare) event of a failure.
4249 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4250 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4251 dnl Push various streams modules onto a PTY channel. Used in process.c.
4252 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.])
4257 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4258 "typing" a signal character on the pty.])
4261 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4262 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
4263 aix4-2 | cygwin | gnu | irix6-5 | dragonfly | freebsd | netbsd | openbsd | darwin )
4264 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4267 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4268 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4269 gnu-linux | gnu-kfreebsd )
4271 AC_MSG_CHECKING([for signals via characters])
4272 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4273 #include <linux/version.h>
4274 #if LINUX_VERSION_CODE < 0x20400
4275 # error "Linux version too old"
4277 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4279 AC_MSG_RESULT([$emacs_signals_via_chars])
4280 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4285 AH_TEMPLATE(TAB3, [Undocumented.])
4288 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4290 gnu | dragonfly | freebsd | netbsd | openbsd )
4291 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4292 AC_DEFINE(TAB3, OXTABS)
4295 gnu-linux | gnu-kfreebsd )
4296 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4300 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4301 [do { extern void *__libc_ia64_register_backing_store_base; __builtin_ia64_flushrs (); mark_memory (__libc_ia64_register_backing_store_base, __builtin_ia64_bsp ());} while (false)],
4302 [Mark a secondary stack, like the register stack on the ia64.]), [])
4306 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4307 run_time_remap; for HPUX.])
4312 dnl This won't be used automatically yet. We also need to know, at least,
4313 dnl that the stack is continuous.
4314 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4315 registers relevant for conservative garbage collection in the jmp_buf.])
4319 dnl Not all the architectures are tested, but there are Debian packages
4320 dnl for SCM and/or Guile on them, so the technique must work. See also
4321 dnl comments in alloc.c concerning setjmp and gcc.
4322 dnl Fixme: it's probably safe to just use the GCC conditional below.
4323 gnu-linux | gnu-kfreebsd )
4324 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4325 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4326 || defined __alpha__ || defined __mips__ || defined __s390__ \
4327 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4328 || defined __ia64__ || defined __sh__
4331 # error "setjmp not known to work on this arch"
4333 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4338 if test x$GCC = xyes; then
4339 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4340 AC_DEFINE(GC_SETJMP_WORKS, 1)
4343 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
4344 aix* | dragonfly | freebsd | netbsd | openbsd | irix6-5 | sol2* )
4345 AC_DEFINE(GC_SETJMP_WORKS, 1)
4350 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4351 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4354 [[#include <setjmp.h>
4356 # define _longjmp longjmp
4361 _longjmp (j, 1);]])],
4362 [emacs_cv_func__setjmp=yes],
4363 [emacs_cv_func__setjmp=no])])
4364 if test $emacs_cv_func__setjmp = yes; then
4365 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4367 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4370 [[#include <setjmp.h>
4373 if (! sigsetjmp (j, 1))
4374 siglongjmp (j, 1);]])],
4375 [emacs_cv_func_sigsetjmp=yes],
4376 [emacs_cv_func_sigsetjmp=no])])
4377 if test $emacs_cv_func_sigsetjmp = yes; then
4378 AC_DEFINE([HAVE_SIGSETJMP], 1,
4379 [Define to 1 if sigsetjmp and siglongjmp work.
4380 The value of this symbol is irrelevant if HAVE__SETJMP is defined.])
4386 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4387 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4388 dnl and this is all we need.
4389 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4396 dnl Used in xfaces.c.
4397 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4398 some systems, where it requires time.h.])
4403 dnl Define symbols to identify the version of Unix this is.
4404 dnl Define all the symbols that apply correctly.
4405 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4406 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4407 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4408 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4413 dnl This symbol should be defined on AIX Version 3 ???????
4414 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4416 # error "_AIX not defined"
4418 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4422 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4426 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
4427 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4428 dnl distinguish OS X from pure Darwin.
4429 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4432 gnu-linux | gnu-kfreebsd )
4434 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4439 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4444 AC_DEFINE(USG5_4, [])
4445 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4449 AC_DEFINE(DOS_NT, [])
4450 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4451 if test "x$ac_enable_checking" != "x" ; then
4452 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4458 AC_DEFINE(USG5_4, [])
4459 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4464 AC_DEFINE(USG5_4, [])
4468 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4471 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4472 emacs_cv_usable_FIONREAD=no
4476 emacs_cv_usable_FIONREAD=yes
4481 [AC_LANG_PROGRAM([[#include <sys/types.h>
4482 #include <sys/ioctl.h>
4484 # include <sys/filio.h>
4487 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4488 [emacs_cv_usable_FIONREAD=yes],
4489 [emacs_cv_usable_FIONREAD=no])
4492 if test $emacs_cv_usable_FIONREAD = yes; then
4493 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4495 if test $emacs_broken_SIGIO = no; then
4496 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4498 [AC_LANG_PROGRAM([[#include <fcntl.h>
4501 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4502 [emacs_cv_usable_SIGIO=yes],
4503 [emacs_cv_usable_SIGIO=no])],
4504 [emacs_cv_usable_SIGIO=yes],
4505 [emacs_cv_usable_SIGIO=no])
4506 if test $emacs_cv_usable_SIGIO = yes; then
4507 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4514 dnl Emacs supplies its own malloc, but glib calls posix_memalign,
4515 dnl and on Cygwin prior to version 1.7.24 that becomes the
4516 dnl Cygwin-supplied posix_memalign. As malloc is not the Cygwin
4517 dnl malloc, the Cygwin posix_memalign always returns ENOSYS. A
4518 dnl workaround is to set G_SLICE=always-malloc. This is no longer
4519 dnl needed starting with cygwin-1.7.24, and it is no longer
4520 dnl effective starting with glib-2.36. */
4522 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
4523 G_SLICE environment variable to "always-malloc" at startup.])
4527 dnl It works to open the pty's tty in the parent (Emacs), then
4528 dnl close and reopen it in the child.
4529 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4530 works to open a pty's tty in the parent process, then close and
4531 reopen it in the child.])
4535 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4536 use VSUSP instead of VSWTCH.])
4540 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4545 # Set up the CFLAGS for real compilation, so we can substitute it.
4546 CFLAGS="$REAL_CFLAGS"
4547 CPPFLAGS="$REAL_CPPFLAGS"
4550 ## Hack to detect a buggy GCC version.
4551 if test "x$GCC" = xyes \
4552 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4553 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4554 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4555 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4558 version=$PACKAGE_VERSION
4560 copyright="Copyright (C) 2014 Free Software Foundation, Inc."
4561 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4562 [Short copyright string for this version of Emacs.])
4565 ### Specify what sort of things we'll be editing into Makefile and config.h.
4566 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4568 AC_SUBST(configuration)
4573 AC_SUBST(exec_prefix)
4576 AC_SUBST(sharedstatedir)
4577 AC_SUBST(libexecdir)
4581 AC_SUBST(standardlisppath)
4582 AC_SUBST(locallisppath)
4584 AC_SUBST(x_default_search_path)
4586 AC_SUBST(archlibdir)
4591 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4592 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4593 ## end of LIBX_BASE, but nothing ever set it.
4594 AC_SUBST(LD_SWITCH_X_SITE)
4595 AC_SUBST(C_SWITCH_X_SITE)
4596 AC_SUBST(GNUSTEP_CFLAGS)
4598 ## Used in lwlib/Makefile.in.
4599 AC_SUBST(X_TOOLKIT_TYPE)
4601 AC_SUBST(ns_appbindir)
4602 AC_SUBST(ns_appresdir)
4604 AC_SUBST(GNU_OBJC_CFLAGS)
4605 AC_SUBST(OTHER_FILES)
4607 if test -n "${term_header}"; then
4608 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4609 [Define to the header for the built-in window system.])
4612 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4613 [Define to the canonical Emacs configuration name.])
4614 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4615 [Define to the options passed to configure.])
4616 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4617 define this to include extra configuration information.])
4621 AC_DEFINE(config_opsysfile, <ms-w32.h>, [])
4628 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4629 AC_DEFINE(HAVE_X_WINDOWS, 1,
4630 [Define to 1 if you want to use the X window system.])
4632 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4634 if test "$HAVE_XFT" = "yes"; then
4635 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4636 elif test "$HAVE_FREETYPE" = "yes"; then
4637 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4647 if test "${USE_X_TOOLKIT}" != "none" ; then
4649 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4650 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4651 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4652 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4653 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4657 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4658 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4662 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4663 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4664 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4668 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4669 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4672 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4675 AC_SUBST(WIDGET_OBJ)
4678 case "$USE_X_TOOLKIT" in
4679 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4680 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4681 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4683 AC_SUBST(TOOLKIT_LIBW)
4685 if test "${opsys}" != "mingw32"; then
4686 if test "$USE_X_TOOLKIT" = "none"; then
4687 LIBXT_OTHER="\$(LIBXSM)"
4689 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4692 AC_SUBST(LIBXT_OTHER)
4694 if test "${HAVE_X11}" = "yes" ; then
4695 AC_DEFINE(HAVE_X11, 1,
4696 [Define to 1 if you want to use version 11 of X windows.])
4697 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4701 AC_SUBST(LIBX_OTHER)
4703 if test "$HAVE_GTK" = yes || test "$HAVE_X11" != yes; then
4705 elif test "$USE_X_TOOLKIT" = none; then
4706 LIBXMENU='$(oldXMenudir)/libXMenu11.a'
4708 LIBXMENU='$(lwlibdir)/liblw.a'
4712 if test "${GNU_MALLOC}" = "yes" ; then
4713 AC_DEFINE(GNU_MALLOC, 1,
4714 [Define to 1 if you want to use the GNU memory allocator.])
4718 if test "${REL_ALLOC}" = "yes" ; then
4719 AC_DEFINE(REL_ALLOC, 1,
4720 [Define REL_ALLOC if you want to use the relocating allocator for
4723 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4725 AC_SUBST(RALLOC_OBJ)
4727 if test "$opsys" = "cygwin"; then
4728 CYGWIN_OBJ="sheap.o cygw32.o"
4729 ## Cygwin differs because of its unexec().
4731 POST_ALLOC_OBJ=lastfile.o
4732 elif test "$opsys" = "mingw32"; then
4735 POST_ALLOC_OBJ=lastfile.o
4738 PRE_ALLOC_OBJ=lastfile.o
4741 AC_SUBST(CYGWIN_OBJ)
4742 AC_SUBST(PRE_ALLOC_OBJ)
4743 AC_SUBST(POST_ALLOC_OBJ)
4745 dnl Call this 'FORTIFY_SOUR' so that it sorts before the 'FORTIFY_SOURCE'
4746 dnl verbatim defined above. The tricky name is apropos, as this hack
4747 dnl makes Fortify go sour!
4748 AH_VERBATIM([FORTIFY_SOUR],
4749 [/* Without the following workaround, Emacs runs slowly on OS X 10.8.
4750 The workaround disables some useful run-time checking, so it
4751 should be conditional to the platforms with the performance bug.
4752 Perhaps Apple will fix this some day; also see m4/extern-inline.m4. */
4753 #if defined __APPLE__ && defined __GNUC__
4754 # ifndef _DONT_USE_CTYPE_INLINE_
4755 # define _DONT_USE_CTYPE_INLINE_
4757 # ifndef _FORTIFY_SOURCE
4758 # define _FORTIFY_SOURCE 0
4763 # If user asks to omit features, disable optional features that gnulib
4764 # might otherwise enable.
4765 if test "$with_features" = no && test "$enable_acl" != yes; then
4769 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4770 # it temporarily reverts them to their pre-pkg-config values,
4771 # because gnulib needs to work with both src (which uses the
4772 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4773 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4774 # and it therefore needs to run in an environment where LIBS does not
4775 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4776 # for some package unrelated to lib-src.
4779 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4780 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4781 gl_ASSERT_NO_GNULIB_POSIXCHECK
4782 gl_ASSERT_NO_GNULIB_TESTS
4787 if test "${opsys}" = "mingw32"; then
4788 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I \${abs_top_srcdir}/nt/inc"
4789 # Remove unneeded switches from the value of CC that goes to Makefiles
4790 CC=`echo $CC | sed -e "s,$GCC_TEST_OPTIONS,,"`
4794 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4797 ## The -headerpad option tells ld (see man page) to leave room at the
4798 ## end of the header for adding load commands. Needed for dumping.
4799 ## 0x690 is the total size of 30 segment load commands (at 56
4800 ## each); under Cocoa 31 commands are required.
4801 if test "$HAVE_NS" = "yes"; then
4802 libs_nsgui="-framework AppKit"
4803 if test "$NS_IMPL_COCOA" = "yes"; then
4804 libs_nsgui="$libs_nsgui -framework IOKit"
4811 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4813 ## This is here because src/Makefile.in did some extra fiddling around
4814 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
4815 ## LD_SWITCH_SYSTEM_TEMACS instead,
4816 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4817 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4820 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4821 ## find X at run-time.
4822 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4823 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4824 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4825 ## had different values in configure (in ac_link) and src/Makefile.in.
4826 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4827 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4830 ## Is it any better under MinGW64 to relocate emacs into higher addresses?
4831 case "$canonical" in
4832 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x400000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4833 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4837 openbsd) LD_SWITCH_SYSTEM_TEMACS='-nopie' ;;
4839 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4842 if test x$ac_enable_profiling != x ; then
4844 *freebsd | gnu-linux) ;;
4845 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
4849 LD_SWITCH_SYSTEM_TEMACS="$LDFLAGS_NOCOMBRELOC $LD_SWITCH_SYSTEM_TEMACS"
4851 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4853 ## Common for all window systems
4854 if test "$window_system" != "none"; then
4855 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4856 AC_DEFINE(POLL_FOR_INPUT, 1, [Define if you poll periodically to detect C-g.])
4857 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4860 AC_SUBST(WINDOW_SYSTEM_OBJ)
4862 AH_TOP([/* GNU Emacs site configuration template file.
4864 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2014
4865 Free Software Foundation, Inc.
4867 This file is part of GNU Emacs.
4869 GNU Emacs is free software: you can redistribute it and/or modify
4870 it under the terms of the GNU General Public License as published by
4871 the Free Software Foundation, either version 3 of the License, or
4872 (at your option) any later version.
4874 GNU Emacs is distributed in the hope that it will be useful,
4875 but WITHOUT ANY WARRANTY; without even the implied warranty of
4876 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4877 GNU General Public License for more details.
4879 You should have received a copy of the GNU General Public License
4880 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4883 /* No code in Emacs #includes config.h twice, but some bits of code
4884 intended to work with other packages as well (like gmalloc.c)
4885 think they can include it as many times as they like. */
4886 #ifndef EMACS_CONFIG_H
4887 #define EMACS_CONFIG_H
4890 AH_BOTTOM([#include <conf_post.h>
4892 #endif /* EMACS_CONFIG_H */
4901 #### Report on what we decided to do.
4902 #### Report GTK as a toolkit, even if it doesn't use Xt.
4903 #### It makes printing result more understandable as using GTK sets
4904 #### toolkit_scroll_bars to yes by default.
4905 if test "${HAVE_GTK}" = "yes"; then
4906 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
4909 if test $USE_ACL -ne 0; then
4910 ACL_SUMMARY="yes $LIB_ACL"
4916 Configured for \`${canonical}'.
4918 Where should the build process find the source code? ${srcdir}
4919 What compiler should emacs be built with? ${CC} ${CFLAGS}
4920 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4921 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4922 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4923 What window system should Emacs use? ${window_system}
4924 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4926 if test -n "${x_includes}"; then
4927 echo " Where do we find X Windows header files? ${x_includes}"
4929 echo " Where do we find X Windows header files? Standard dirs"
4931 if test -n "${x_libraries}"; then
4932 echo " Where do we find X Windows libraries? ${x_libraries}"
4934 echo " Where do we find X Windows libraries? Standard dirs"
4938 emacs_config_features=
4939 for opt in XAW3D XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS \
4940 GCONF GSETTINGS NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT \
4944 NOTIFY|ACL) eval val=\${${opt}_SUMMARY} ;;
4945 *) eval val=\${HAVE_$opt} ;;
4947 test x"$val" = xno && continue
4948 AS_VAR_APPEND([emacs_config_features], ["$optsep$opt"])
4951 AC_DEFINE_UNQUOTED(EMACS_CONFIG_FEATURES, "${emacs_config_features}",
4952 [Summary of some of the main features enabled by configure.])
4954 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4955 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4956 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4957 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4958 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4959 echo " Does Emacs use a png library? ${HAVE_PNG} $LIBPNG"
4960 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4961 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4963 echo " Does Emacs support sound? ${HAVE_SOUND}"
4965 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4966 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4967 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4968 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4969 echo " Does Emacs use a file notification library? ${NOTIFY_SUMMARY}"
4970 echo " Does Emacs use access control lists? ${ACL_SUMMARY}"
4971 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4972 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4973 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4975 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4976 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4977 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
4978 echo " Does Emacs use -lxft? ${HAVE_XFT}"
4979 echo " Does Emacs directly use zlib? ${HAVE_ZLIB}"
4981 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
4984 if test -n "${EMACSDATA}"; then
4985 echo " Environment variable EMACSDATA set to: $EMACSDATA"
4987 if test -n "${EMACSDOC}"; then
4988 echo " Environment variable EMACSDOC set to: $EMACSDOC"
4993 if test "$HAVE_NS" = "yes"; then
4995 echo "You must run \"${MAKE-make} install\" in order to test the built application.
4996 The installed application will go to nextstep/Emacs.app and can be
4997 run or moved from there."
4998 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
4999 echo "The application will be fully self-contained."
5001 echo "The lisp resources for the application will be installed under ${prefix}.
5002 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
5003 to run if these resources are not installed."
5008 if test "${opsys}" = "cygwin"; then
5010 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
5016 # Remove any trailing slashes in these variables.
5017 [test "${prefix}" != NONE &&
5018 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
5019 test "${exec_prefix}" != NONE &&
5020 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
5022 if test "$HAVE_NS" = "yes"; then
5023 if test "$NS_IMPL_GNUSTEP" = yes; then
5024 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
5025 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
5026 ns_check_file=Resources/Info-gnustep.plist
5028 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
5029 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
5030 ns_check_file=Contents/Info.plist
5032 AC_SUBST(ns_check_file)
5035 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
5036 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
5037 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
5038 dnl (else you get "no `Makefile.am' found for any configure output").
5039 dnl This will work, but you get a config.status that is not quite right
5040 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
5041 dnl That doesn't have any obvious consequences for Emacs, but on the whole
5042 dnl it seems better to just live with the duplication.
5043 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile nt/Makefile"
5045 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
5046 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
5047 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
5048 leim/Makefile nextstep/Makefile nt/Makefile])
5050 dnl test/ is not present in release tarfiles.
5051 opt_makefile=test/automated/Makefile
5053 if test -f "$srcdir/$opt_makefile.in"; then
5054 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
5055 dnl Again, it's best not to use a variable. Though you can add
5056 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
5057 AC_CONFIG_FILES([test/automated/Makefile])
5061 dnl The admin/ directory used to be excluded from tarfiles.
5062 if test -d $srcdir/admin; then
5063 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES admin/unidata/Makefile admin/grammars/Makefile"
5064 AC_CONFIG_FILES([admin/unidata/Makefile])
5065 AC_CONFIG_FILES([admin/grammars/Makefile])
5069 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
5071 AC_SUBST(SUBDIR_MAKEFILES_IN)
5073 dnl You might wonder (I did) why epaths.h is generated by running make,
5074 dnl rather than just letting configure generate it from epaths.in.
5075 dnl One reason is that the various paths are not fully expanded (see above);
5076 dnl eg gamedir=${prefix}/var/games/emacs.
5077 dnl Secondly, the GNU Coding standards require that one should be able
5078 dnl to run `make prefix=/some/where/else' and override the values set
5079 dnl by configure. This also explains the `move-if-change' test and
5080 dnl the use of force in the `epaths-force' rule in Makefile.in.
5081 AC_CONFIG_COMMANDS([src/epaths.h], [
5082 if test "${opsys}" = "mingw32"; then
5083 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
5085 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
5086 fi || AC_MSG_ERROR(['src/epaths.h' could not be made.])
5087 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
5089 dnl NB we have to cheat and use the ac_... version because abs_top_srcdir
5090 dnl is not yet set, sigh. Or we could use ../$srcdir/src/.gdbinit,
5092 AC_CONFIG_COMMANDS([src/.gdbinit], [
5093 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
5094 echo "source $ac_abs_top_srcdir/src/.gdbinit" > src/.gdbinit
5100 test "$MAKE" = make || AC_MSG_NOTICE([Now you can run '$MAKE'.])