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 We get MINGW64 with MSYS2
29 if test "x$MSYSTEM" = "xMINGW32" -o "x$MSYSTEM" = "xMINGW64"
31 . $srcdir/nt/mingw-cfg.site
35 # srcdir is an absolute path. In this case, force the format
36 # "/c/foo/bar", to simplify later conversions to native Windows
37 # format ("c:/foo/bar")
38 srcdir=`cd "${srcdir}" && pwd -W`
39 srcdir="/${srcdir:0:1}${srcdir:2}"
44 dnl Set emacs_config_options to the options of 'configure', quoted for the shell,
45 dnl and then quoted again for a C string. Separate options with spaces.
46 dnl Add some environment variables, if they were passed via the environment
47 dnl rather than on the command-line.
50 dnl This is the documented way to record the args passed to configure,
51 dnl rather than $ac_configure_args.
52 for opt in ${1+"$@"} CFLAGS CPPFLAGS LDFLAGS; do
54 -n | --no-create | --no-recursion)
56 CFLAGS | CPPFLAGS | LDFLAGS)
57 eval 'test "${'$opt'+set}" = set' || continue
59 *" $opt="*) continue ;;
61 eval opt=$opt=\$$opt ;;
64 emacs_shell_specials=$IFS\''"#$&()*;<>?@<:@\\`{|~'
66 *[["$emacs_shell_specials"]]*)
69 emacs_quote_apostrophes="s/'/'\\\\''/g"
70 opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_apostrophes"` ;;
75 emacs_quote_for_c='s/[["\\]]/\\&/g; $!s/$/\\n\\/'
76 opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_for_c"` ;;
79 AS_VAR_APPEND([emacs_config_options], ["$optsep$opt"])
83 AC_CONFIG_HEADERS(src/config.h:src/config.in)
84 AC_CONFIG_SRCDIR(src/lisp.h)
85 AC_CONFIG_AUX_DIR(build-aux)
86 dnl automake 1.13 and later understand this, making -I m4 unnecessary.
87 AC_CONFIG_MACRO_DIR(m4)
90 AC_CHECK_PROGS(XCRUN, [xcrun])
91 if test -n "$XCRUN"; then
92 if test -z "$MAKE"; then
93 dnl Call the variable MAKE_PROG, not MAKE, to avoid confusion with
94 dnl SET_MAKE and with the usual MAKE variable that 'make' itself uses.
95 AC_CHECK_PROG([MAKE_PROG], [make], [yes])
96 if test -z "$MAKE_PROG"; then
99 xcsdkdir=`$XCRUN --show-sdk-path 2>/dev/null`
104 dnl Fairly arbitrary, older versions might work too.
105 AM_INIT_AUTOMAKE(1.11)
107 dnl Support for --program-prefix, --program-suffix and
108 dnl --program-transform-name options
111 dnl It is important that variables on the RHS not be expanded here,
112 dnl hence the single quotes. This is per the GNU coding standards, see
113 dnl (autoconf) Installation Directory Variables
114 dnl See also epaths.h below.
115 lispdir='${datadir}/emacs/${version}/lisp'
116 standardlisppath='${lispdir}'
117 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
118 '${datadir}/emacs/site-lisp'
119 lisppath='${locallisppath}:${standardlisppath}'
120 etcdir='${datadir}/emacs/${version}/etc'
121 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
122 etcdocdir='${datadir}/emacs/${version}/etc'
123 gamedir='${localstatedir}/games/emacs'
125 dnl Special option to disable the most of other options.
127 [AS_HELP_STRING([--without-all],
128 [omit almost all features and build
129 small executable with minimal dependencies])],
130 [with_features=$withval],
133 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
134 dnl Create a new --with option that defaults to being disabled.
135 dnl NAME is the base name of the option. The shell variable with_NAME
136 dnl will be set to either the user's value (if the option is
137 dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
138 dnl option is not specified). Note that the shell variable name is
139 dnl constructed as autoconf does, by replacing non-alphanumeric
140 dnl characters with "_".
141 dnl HELP-STRING is the help text for the option.
142 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
143 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
144 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
147 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
148 dnl Create a new --with option that defaults to $with_features.
149 dnl NAME is the base name of the option. The shell variable with_NAME
150 dnl will be set either to 'no' (for a plain --without-NAME) or to
151 dnl 'yes' (if the option is not specified). Note that the shell
152 dnl variable name is constructed as autoconf does, by replacing
153 dnl non-alphanumeric characters with "_".
154 dnl HELP-STRING is the help text for the option.
155 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
156 AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
157 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=$with_features])dnl
160 OPTION_DEFAULT_ON([pop],[don't support POP mail retrieval with movemail])
161 if test "$with_pop" = yes; then
162 AC_DEFINE(MAIL_USE_POP)
164 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
166 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
167 if test "$with_kerberos" != no; then
170 AH_TEMPLATE(KERBEROS,
171 [Define to support Kerberos-authenticated POP mail retrieval.])dnl
173 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
174 if test "${with_kerberos5}" != no; then
175 if test "${with_kerberos}" = no; then
179 AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
182 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
183 dnl FIXME hesiod support may not be present, so it seems like an error
184 dnl to define, or at least use, this unconditionally.
185 if test "$with_hesiod" != no; then
186 AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
189 OPTION_DEFAULT_OFF([mmdf],[support MMDF mailboxes])
190 if test "$with_mmdf" != no; then
191 AC_DEFINE(MAIL_USE_MMDF, 1, [Define to support MMDF mailboxes in movemail.])
194 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
195 if test "$with_mail_unlink" != no; then
196 AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
199 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
200 [string giving default POP mail host])],
201 AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
203 AC_ARG_WITH([sound],[AS_HELP_STRING([--with-sound=VALUE],
204 [compile with sound support (VALUE one of: yes, alsa, oss, bsd-ossaudio, no;
205 default yes). Only for GNU/Linux, FreeBSD, NetBSD, MinGW.])],
206 [ case "${withval}" in
207 yes|no|alsa|oss|bsd-ossaudio) val=$withval ;;
208 *) AC_MSG_ERROR([`--with-sound=$withval' is invalid;
209 this option's value should be `yes', `no', `alsa', `oss', or `bsd-ossaudio'.])
214 [with_sound=$with_features])
216 dnl FIXME currently it is not the last.
217 dnl This should be the last --with option, because --with-x is
218 dnl added later on when we find the file name of X, and it's best to
219 dnl keep them together visually.
220 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
221 [use an X toolkit (KIT one of: yes or gtk, gtk2, gtk3, lucid or athena, motif, no)])],
222 [ case "${withval}" in
223 y | ye | yes ) val=gtk ;;
225 l | lu | luc | luci | lucid ) val=lucid ;;
226 a | at | ath | athe | athen | athena ) val=athena ;;
227 m | mo | mot | moti | motif ) val=motif ;;
228 g | gt | gtk ) val=gtk ;;
232 AC_MSG_ERROR([`--with-x-toolkit=$withval' is invalid;
233 this option's value should be `yes', `no', `lucid', `athena', `motif', `gtk',
234 `gtk2' or `gtk3'. `yes' and `gtk' are synonyms.
235 `athena' and `lucid' are synonyms.])
241 OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit)])
242 if test "$with_wide_int" = yes; then
243 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
246 dnl _ON results in a '--without' option in the --help output, so
247 dnl the help text should refer to "don't compile", etc.
248 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
249 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
250 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
251 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
252 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
253 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
254 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
255 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
257 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
258 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
259 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
261 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
262 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
263 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
264 OPTION_DEFAULT_OFF([ns],[use NeXTstep (Cocoa or GNUstep) windowing system])
265 OPTION_DEFAULT_OFF([w32], [use native MS Windows GUI in a Cygwin build])
267 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
268 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
269 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
270 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
271 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
272 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
273 OPTION_DEFAULT_ON([zlib],[don't compile with zlib decompression support])
275 AC_ARG_WITH([file-notification],[AS_HELP_STRING([--with-file-notification=LIB],
276 [use a file notification library (LIB one of: yes, gfile, inotify, w32, no)])],
277 [ case "${withval}" in
278 y | ye | yes ) val=yes ;;
280 g | gf | gfi | gfil | gfile ) val=gfile ;;
281 i | in | ino | inot | inoti | inotif | inotify ) val=inotify ;;
282 w | w3 | w32 ) val=w32 ;;
283 * ) AC_MSG_ERROR([`--with-file-notification=$withval' is invalid;
284 this option's value should be `yes', `no', `gfile', `inotify' or `w32'.
285 `yes' is a synonym for `w32' on MS-Windows, for `no' on Nextstep,
286 otherwise for the first of `gfile' or `inotify' that is usable.])
289 with_file_notification=$val
291 [with_file_notification=$with_features])
293 ## For the times when you want to build Emacs but don't have
294 ## a suitable makeinfo, and can live without the manuals.
295 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
296 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
298 ## This might be a 'configure' arg, e.g., autogen.sh might set it.
299 AC_SUBST([ACLOCAL_PATH])
301 ## Makefile.in needs the cache file name.
304 ## This is an option because I do not know if all info/man support
305 ## compressed files, nor how to test if they do so.
306 OPTION_DEFAULT_ON([compress-install],
307 [don't compress some files (.el, .info, etc.) when installing. Equivalent to:
308 make GZIP_PROG= install])
310 AC_ARG_WITH(gameuser,dnl
311 [AS_HELP_STRING([--with-gameuser=USER],[user for shared game score files])])
312 test "X${with_gameuser}" != X && test "${with_gameuser}" != yes \
313 && gameuser="${with_gameuser}"
314 test "X$gameuser" = X && gameuser=games
316 AC_ARG_WITH([gnustep-conf],dnl
317 [AS_HELP_STRING([--with-gnustep-conf=FILENAME],
318 [name of GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
319 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
320 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
321 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
322 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
324 AC_ARG_ENABLE(ns-self-contained,
325 [AS_HELP_STRING([--disable-ns-self-contained],
326 [disable self contained build under NeXTstep])],
327 EN_NS_SELF_CONTAINED=$enableval,
328 EN_NS_SELF_CONTAINED=yes)
330 AC_ARG_ENABLE(locallisppath,
331 [AS_HELP_STRING([--enable-locallisppath=PATH],
332 [directories Emacs should search for lisp files specific
334 if test "${enableval}" = "no"; then
336 elif test "${enableval}" != "yes"; then
337 locallisppath=${enableval}
340 AC_ARG_ENABLE(checking,
341 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
342 [enable expensive run-time checks. With LIST,
343 enable only specific categories of checks.
344 Categories are: all,yes,no.
345 Flags are: stringbytes, stringoverrun, stringfreelist,
346 xmallocoverrun, conslist, glyphs])],
347 [ac_checking_flags="${enableval}"],[])
348 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
349 for check in $ac_checking_flags
352 # these set all the flags to specific states
353 yes) ac_enable_checking=1 ;;
354 no) ac_enable_checking= ;
355 ac_gc_check_stringbytes= ;
356 ac_gc_check_string_overrun= ;
357 ac_gc_check_string_free_list= ;
358 ac_xmalloc_overrun= ;
359 ac_gc_check_cons_list= ;
361 all) ac_enable_checking=1 ;
362 ac_gc_check_stringbytes=1 ;
363 ac_gc_check_string_overrun=1 ;
364 ac_gc_check_string_free_list=1 ;
365 ac_xmalloc_overrun=1 ;
366 ac_gc_check_cons_list=1 ;
368 # these enable particular checks
369 stringbytes) ac_gc_check_stringbytes=1 ;;
370 stringoverrun) ac_gc_check_string_overrun=1 ;;
371 stringfreelist) ac_gc_check_string_free_list=1 ;;
372 xmallocoverrun) ac_xmalloc_overrun=1 ;;
373 conslist) ac_gc_check_cons_list=1 ;;
374 glyphs) ac_glyphs_debug=1 ;;
375 *) AC_MSG_ERROR(unknown check category $check) ;;
380 if test x$ac_enable_checking != x ; then
381 AC_DEFINE(ENABLE_CHECKING, 1,
382 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
384 if test x$ac_gc_check_stringbytes != x ; then
385 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
386 [Define this temporarily to hunt a bug. If defined, the size of
387 strings is redundantly recorded in sdata structures so that it can
388 be compared to the sizes recorded in Lisp strings.])
390 if test x$ac_gc_check_string_overrun != x ; then
391 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
392 [Define this to check for short string overrun.])
394 if test x$ac_gc_check_string_free_list != x ; then
395 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
396 [Define this to check the string free list.])
398 if test x$ac_xmalloc_overrun != x ; then
399 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
400 [Define this to check for malloc buffer overrun.])
402 if test x$ac_gc_check_cons_list != x ; then
403 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
404 [Define this to check for errors in cons list.])
406 if test x$ac_glyphs_debug != x ; then
407 AC_DEFINE(GLYPH_DEBUG, 1,
408 [Define this to enable glyphs debugging code.])
411 AC_ARG_ENABLE(check-lisp-object-type,
412 [AS_HELP_STRING([--enable-check-lisp-object-type],
413 [enable compile time checks for the Lisp_Object data type.
414 This is useful for development for catching certain types of bugs.])],
415 if test "${enableval}" != "no"; then
416 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
417 [Define this to enable compile time checks for the Lisp_Object data type.])
421 dnl The name of this option is unfortunate. It predates, and has no
422 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
423 dnl Actually, it stops it working.
424 dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
425 AC_ARG_ENABLE(profiling,
426 [AS_HELP_STRING([--enable-profiling],
427 [build emacs with low-level, gprof profiling support.
428 Mainly useful for debugging Emacs itself. May not work on
429 all platforms. Stops profiler.el working.])],
430 [ac_enable_profiling="${enableval}"],[])
431 if test x$ac_enable_profiling != x ; then
432 PROFILING_CFLAGS="-DPROFILING=1 -pg"
436 AC_SUBST(PROFILING_CFLAGS)
438 AC_ARG_ENABLE(autodepend,
439 [AS_HELP_STRING([--enable-autodepend],
440 [automatically generate dependencies to .h-files.
441 Requires gcc, enabled if found.])],
442 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
444 AC_ARG_ENABLE(gtk-deprecation-warnings,
445 [AS_HELP_STRING([--enable-gtk-deprecation-warnings],
446 [Show Gtk+/Gdk deprecation warnings for Gtk+ >= 3.0])],
447 [ac_enable_gtk_deprecation_warnings="${enableval}"],[])
449 ### Canonicalize the configuration name.
453 configuration=${host_alias-${build_alias-$host}}
455 dnl This used to use changequote, but, apart from `changequote is evil'
456 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
457 dnl the great gob of text. Thus it's not processed for possible expansion.
458 dnl Just make sure the brackets remain balanced.
460 dnl Since Emacs can't find matching pairs of quotes, boundaries are
461 dnl indicated by comments.
465 ### If you add support for a new configuration, add code to this
466 ### switch statement to recognize your configuration name and select
467 ### the appropriate opsys.
469 ### As far as handling version numbers on operating systems is
470 ### concerned, make sure things will fail in a fixable way. If
471 ### /etc/MACHINES doesn't say anything about version numbers, be
472 ### prepared to handle anything reasonably. If version numbers
473 ### matter, be sure /etc/MACHINES says something about it.
476 case "${canonical}" in
478 ## GNU/Linux and similar ports
493 ## FreeBSD kernel + glibc based userland
504 *-*-openbsd* | *-*-mirbsd* )
508 ## Apple Darwin / Mac OS X
510 case "${canonical}" in
517 ## Use fink packages if available.
518 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
519 ## if test -d /sw/include && test -d /sw/lib; then
520 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
521 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
530 ## HP 9000 series 700 and 800, running HP/UX
534 hppa*-hp-hpux1[1-9]* )
536 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
540 rs6000-ibm-aix4.[23]* )
543 powerpc-ibm-aix4.[23]* )
546 rs6000-ibm-aix[56]* )
549 powerpc-ibm-aix[56]* )
553 ## Silicon Graphics machines
557 # Without defining _LANGUAGE_C, things get masked out in the headers
558 # so that, for instance, grepping for `free' in stdlib.h fails and
559 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
560 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
565 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
566 | x86_64-*-solaris2* | x86_64-*-sunos5*)
567 case "${canonical}" in
569 amd64-*-*|x86_64-*-*) ;;
573 case "${canonical}" in
574 *-sunos5.[1-9][0-9]* | *-solaris2.[1-9][0-9]* )
576 emacs_check_sunpro_c=yes
578 *-sunos5.6* | *-solaris2.6* )
582 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
584 emacs_check_sunpro_c=yes
587 ## Watch out for a compiler that we know will not work.
588 case "${canonical}" in
589 *-solaris* | *-sunos5* )
590 if [ "x$CC" = x/usr/ucb/cc ]; then
591 ## /usr/ucb/cc doesn't work;
592 ## we should find some other compiler that does work.
600 ## Intel 386 machines where we don't care about the manufacturer.
602 case "${canonical}" in
603 *-darwin* ) opsys=darwin ;;
606 # MinGW overrides and adds some system headers in nt/inc.
607 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
609 *-sysv4.2uw* ) opsys=unixware ;;
610 *-sysv5uw* ) opsys=unixware ;;
611 *-sysv5OpenUNIX* ) opsys=unixware ;;
612 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
618 case "${canonical}" in
621 # MinGW overrides and adds some system headers in nt/inc.
622 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
624 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
633 ### If the code above didn't choose an operating system, just choose
634 ### an operating system based on the configuration name. You really
635 ### only want to use this when you have no idea what the right
636 ### operating system is; if you know what operating systems a machine
637 ### runs, it's cleaner to make it explicit in the case statement
639 if test x"${opsys}" = x; then
640 case "${canonical}" in
641 *-gnu* ) opsys=gnu ;;
651 if test $unported = yes; then
652 AC_MSG_ERROR([Emacs does not support `${canonical}' systems.
653 If you think it should, please send a report to ${PACKAGE_BUGREPORT}.
654 Check `etc/MACHINES' for recognized configuration names.])
658 AC_MSG_CHECKING([whether we are using GNU Make])
659 testval=`${MAKE-make} --version 2>/dev/null | grep 'GNU Make'`
660 if test "x$testval" != x; then
664 AC_MSG_ERROR([Building Emacs requires GNU make.
665 If you have it installed under another name, configure with 'MAKE=...'.
666 For example, run './configure MAKE=gmake'.])
670 #### Choose a compiler.
672 dnl Sets GCC=yes if using gcc.
673 AC_PROG_CC([gcc cc cl clang "$XCRUN gcc" "$XCRUN clang"])
674 if test -n "$XCRUN"; then
675 AC_CHECK_PROGS(AR, [ar "$XCRUN ar"])
676 test -n "$AR" && export AR
681 if test x$GCC = xyes; then
682 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
684 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
687 dnl This is used in lib/Makefile.am to use nt/gnulib.mk, the
688 dnl alternative to lib/gnulib.mk, so as to avoid generating header files
689 dnl that clash with MinGW.
690 AM_CONDITIONAL([BUILDING_FOR_WINDOWSNT], [test "x$opsys" = "xmingw32"])
692 # Avoid gnulib's tests for -lcrypto, so that there's no static dependency on it.
693 AC_DEFUN([gl_CRYPTO_CHECK])
694 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
695 # as we don't use them.
696 AC_DEFUN([gl_FCNTL_O_FLAGS])
697 # Avoid gnulib's threadlib module, as we do threads our own way.
698 AC_DEFUN([gl_THREADLIB])
700 # Initialize gnulib right after choosing the compiler.
701 dnl Amongst other things, this sets AR and ARFLAGS.
704 if test "$ac_test_CFLAGS" != set; then
705 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
706 # if -g3 works and the user does not specify CFLAGS.
707 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
710 emacs_g3_CFLAGS='-g3';;
712 emacs_g3_CFLAGS='-g3 -O2';;
716 if test -n "$emacs_g3_CFLAGS"; then
717 emacs_save_CFLAGS=$CFLAGS
718 CFLAGS=$emacs_g3_CFLAGS
719 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
720 [emacs_cv_prog_cc_g3],
721 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
722 [emacs_cv_prog_cc_g3=yes],
723 [emacs_cv_prog_cc_g3=no])])
724 if test $emacs_cv_prog_cc_g3 != yes; then
725 CFLAGS=$emacs_save_CFLAGS
727 if test $opsys = mingw32; then
728 CFLAGS="$CFLAGS -gdwarf-2"
735 # No optimization flag was inferred for this non-GCC compiler.
736 # Try -O. This is needed for xlc on AIX; see Bug#14258.
737 emacs_save_CFLAGS=$CFLAGS
738 test -z "$CFLAGS" || CFLAGS="$CFLAGS "
740 AC_CACHE_CHECK([whether $CC accepts -O],
741 [emacs_cv_prog_cc_o],
742 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
743 [emacs_cv_prog_cc_o=yes],
744 [emacs_cv_prog_cc_o=no])])
745 if test $emacs_cv_prog_cc_o != yes; then
746 CFLAGS=$emacs_save_CFLAGS
751 AC_ARG_ENABLE([gcc-warnings],
752 [AS_HELP_STRING([--enable-gcc-warnings],
753 [turn on lots of GCC warnings/errors. This is intended for
754 developers, and may generate false alarms when used
755 with older or non-GNU development tools.])],
758 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
760 gl_gcc_warnings=$enableval],
764 AC_ARG_ENABLE(link-time-optimization,
765 [AS_HELP_STRING([--enable-link-time-optimization],
766 [build emacs with link-time optimization.
767 This is supported only for GCC since 4.5.0.])],
768 if test "${enableval}" != "no"; then
769 AC_MSG_CHECKING([whether link-time optimization is supported])
771 if test x$GCC = xyes; then
772 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
773 if test x$CPUS != x; then
779 CFLAGS="$CFLAGS $LTO"
780 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
781 [ac_lto_supported=yes], [ac_lto_supported=no])
784 AC_MSG_RESULT([$ac_lto_supported])
785 if test "$ac_lto_supported" = "yes"; then
786 CFLAGS="$CFLAGS $LTO"
790 # clang is unduly picky about some things.
791 AC_CACHE_CHECK([whether the compiler is clang], [emacs_cv_clang],
798 [emacs_cv_clang=yes],
799 [emacs_cv_clang=no])])
801 # When compiling with GCC, prefer -isystem to -I when including system
802 # include files, to avoid generating useless diagnostics for the files.
803 if test "$gl_gcc_warnings" != yes; then
805 if test "$emacs_cv_clang" = yes
807 # Turn off some warnings if supported.
808 gl_WARN_ADD([-Wno-switch])
809 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
810 gl_WARN_ADD([-Wno-pointer-sign])
815 # This, $nw, is the list of warnings we disable.
818 case $with_x_toolkit in
819 lucid | athena | motif)
820 # Old toolkits mishandle 'const'.
821 nw="$nw -Wwrite-strings"
824 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
827 AC_SUBST([WERROR_CFLAGS])
829 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
830 nw="$nw -Woverlength-strings" # Not a problem these days
831 nw="$nw -Wlogical-op" # any use of fwrite provokes this
832 nw="$nw -Wformat-nonliteral" # we do this a lot
833 nw="$nw -Wvla" # warnings in gettext.h
834 nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
835 nw="$nw -Wswitch-default" # Too many warnings for now
836 nw="$nw -Winline" # OK to ignore 'inline'
837 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
838 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
839 # signed overflow has undefined behavior
840 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
841 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
842 nw="$nw -Wbad-function-cast" # These casts are no worse than others.
844 # Emacs doesn't care about shadowing; see
845 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
848 # Emacs's use of alloca inhibits protecting the stack.
849 nw="$nw -Wstack-protector"
851 # The following line should be removable at some point.
852 nw="$nw -Wsuggest-attribute=pure"
854 # This part is merely for shortening the command line,
855 # since -Wno-FOO needs to be added below regardless.
856 nw="$nw -Wmissing-field-initializers"
858 nw="$nw -Wtype-limits"
859 nw="$nw -Wunused-parameter"
861 if test $emacs_cv_clang = yes; then
862 nw="$nw -Wcast-align"
865 gl_MANYWARN_ALL_GCC([ws])
866 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
870 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
871 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
872 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
873 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
874 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
875 gl_WARN_ADD([-Wno-format-nonliteral])
877 # In spite of excluding -Wlogical-op above, it is enabled, as of
878 # gcc 4.5.0 20090517.
879 gl_WARN_ADD([-Wno-logical-op])
881 # More things that clang is unduly picky about.
882 if test $emacs_cv_clang = yes; then
883 gl_WARN_ADD([-Wno-format-extra-args])
884 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
885 gl_WARN_ADD([-Wno-unused-command-line-argument])
886 gl_WARN_ADD([-Wno-unused-value])
889 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
890 AH_VERBATIM([FORTIFY_SOURCE],
891 [/* Enable compile-time and run-time bounds-checking, and some warnings,
892 without upsetting glibc 2.15+. */
893 #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
894 # define _FORTIFY_SOURCE 2
897 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
899 # We use a slightly smaller set of warning options for lib/.
900 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
902 nw="$nw -Wunused-macros"
904 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
905 AC_SUBST([GNULIB_WARN_CFLAGS])
917 dnl Some other nice autoconf tests.
918 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
921 dnl if test "x$RANLIB" = x; then
926 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
927 dnl can be made to directories. This is not relevant for our usage, and
928 dnl excludes some cases that work fine for us. Eg MS Windows or files
929 dnl hosted on AFS, both examples where simple links work, but links to
930 dnl directories fail. We use a cut-down version instead.
933 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
934 rm -f conf$$ conf$$.file
936 LN_S_FILEONLY='cp -p'
938 dnl On MinGW, ensure we will call the MSYS /bin/ln.exe, not some
939 dnl random program in the current directory.
940 if (echo >conf$$.file) 2>/dev/null; then
941 if ln -s conf$$.file conf$$ 2>/dev/null; then
942 if test "$opsys" = "mingw32"; then
943 LN_S_FILEONLY='/bin/ln -s'
945 LN_S_FILEONLY='ln -s'
947 elif ln conf$$.file conf$$ 2>/dev/null; then
948 if test "$opsys" = "mingw32"; then
949 LN_S_FILEONLY=/bin/ln
956 rm -f conf$$ conf$$.file
958 if test "$LN_S_FILEONLY" = "ln -s"; then
961 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
964 AC_SUBST(LN_S_FILEONLY)
967 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
968 dnl doesn't support links to directories, as in "ln file dir". But that
969 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
970 dnl executables at "make install" time.
971 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
972 dnl for more details.
973 if test "$opsys" = "mingw32"; then
977 AC_PATH_PROG(INSTALL_INFO, install-info, :,
978 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
979 dnl Don't use GZIP, which is used by gzip for additional parameters.
980 AC_PATH_PROG(GZIP_PROG, gzip)
982 test $with_compress_install != yes && test -n "$GZIP_PROG" && \
983 GZIP_PROG=" # $GZIP_PROG # (disabled by configure --without-compress-install)"
985 if test $opsys = gnu-linux; then
986 AC_PATH_PROG(PAXCTL, paxctl,,
987 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
988 if test "X$PAXCTL" != X; then
989 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
990 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
991 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
992 else AC_MSG_RESULT(no); PAXCTL=""; fi])
995 if test "${SETFATTR+set}" != set; then
996 AC_CACHE_CHECK([for setfattr],
997 [emacs_cv_prog_setfattr],
999 if (setfattr -n user.pax.flags conftest.tmp) >/dev/null 2>&1; then
1000 emacs_cv_prog_setfattr=yes
1002 emacs_cv_prog_setfattr=no
1004 if test "$emacs_cv_prog_setfattr" = yes; then
1010 AC_SUBST([SETFATTR])
1014 ## Need makeinfo >= 4.7 (?) to build the manuals.
1015 AC_PATH_PROG(MAKEINFO, makeinfo, no)
1016 dnl By this stage, configure has already checked for egrep and set EGREP,
1017 dnl or exited with an error if no egrep was found.
1018 if test "$MAKEINFO" != "no"; then
1020 $MAKEINFO --version 2> /dev/null |
1021 $EGREP 'texinfo[[^0-9]]*([[1-4]][[0-9]]+|[[5-9]]|4\.[[7-9]]|4\.[[1-6]][[0-9]]+)'
1027 ## Makeinfo is unusual. For a released Emacs, the manuals are
1028 ## pre-built, and not deleted by the normal clean rules. makeinfo is
1029 ## therefore in the category of "special tools" not normally required, which
1030 ## configure does not have to check for (eg autoconf itself).
1031 ## In a repository checkout on the other hand, the manuals are not included.
1032 ## So makeinfo is a requirement to build from the repository, and configure
1033 ## should test for it as it does for any other build requirement.
1034 ## We use the presence of $srcdir/info/emacs to distinguish a release,
1035 ## with pre-built manuals, from a repository checkout.
1038 if test "$MAKEINFO" = "no"; then
1040 if test "x${with_makeinfo}" = "xno"; then
1042 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
1043 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
1044 source tree does not seem to have pre-built manuals in the `info' directory.
1045 Either install a suitable version of makeinfo, or re-run configure
1046 with the `--without-makeinfo' option to build without the manuals.] )
1049 AC_SUBST(HAVE_MAKEINFO)
1051 dnl Just so that there is only a single place we need to edit.
1053 INFO_OPTS=--no-split
1057 if test $opsys = mingw32; then
1058 DOCMISC_W32=efaq-w32
1062 AC_SUBST(DOCMISC_W32)
1064 dnl Add our options to ac_link now, after it is set up.
1066 if test x$GCC = xyes; then
1067 test "x$GCC_LINK_TEST_OPTIONS" != x && \
1068 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1070 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
1071 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1074 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
1075 dnl If we can link with the flag, it shouldn't do any harm anyhow.
1076 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
1077 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
1078 dnl if not built to support GNU ld.
1080 dnl For a long time, -znocombreloc was added to LDFLAGS rather than
1081 dnl LD_SWITCH_SYSTEM_TEMACS. That is:
1082 dnl * inappropriate, as LDFLAGS is a user option but this is essential.
1083 dnl Eg "make LDFLAGS=... all" could run into problems,
1084 dnl http://bugs.debian.org/684788
1085 dnl * unnecessary, since temacs is the only thing that actually needs it.
1086 dnl Indeed this is where it was originally, prior to:
1087 dnl http://lists.gnu.org/archive/html/emacs-pretest-bug/2004-03/msg00170.html
1088 late_LDFLAGS="$LDFLAGS"
1089 if test x$GCC = xyes; then
1090 LDFLAGS_NOCOMBRELOC="-Wl,-znocombreloc"
1092 LDFLAGS_NOCOMBRELOC="-znocombreloc"
1095 LDFLAGS="$LDFLAGS $LDFLAGS_NOCOMBRELOC"
1097 AC_MSG_CHECKING([for -znocombreloc])
1098 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1099 [AC_MSG_RESULT(yes)],
1100 LDFLAGS_NOCOMBRELOC=
1101 [AC_MSG_RESULT(no)])
1103 LDFLAGS="$late_LDFLAGS"
1105 AC_CACHE_CHECK([whether addresses are sanitized],
1106 [emacs_cv_sanitize_address],
1109 [[#ifndef __has_feature
1110 #define __has_feature(f) 0
1112 #if defined __SANITIZE_ADDRESS__ || __has_feature (address_sanitizer)
1114 error "Addresses are not sanitized.";
1117 [emacs_cv_sanitize_address=yes],
1118 [emacs_cv_sanitize_address=no])])
1120 dnl The function dump-emacs will not be defined and temacs will do
1121 dnl (load "loadup") automatically unless told otherwise.
1122 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
1124 your-opsys-here) CANNOT_DUMP=yes ;;
1127 if test "$CANNOT_DUMP" = "yes"; then
1128 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1129 elif test "$emacs_cv_sanitize_address" = yes; then
1130 AC_MSG_WARN([[Addresses are sanitized; suggest CANNOT_DUMP=yes]])
1133 AC_SUBST(CANNOT_DUMP)
1136 UNEXEC_OBJ=unexelf.o
1138 # MSDOS uses unexcoff.o
1140 UNEXEC_OBJ=unexaix.o
1146 UNEXEC_OBJ=unexmacosx.o
1149 UNEXEC_OBJ=unexhp9k800.o
1152 UNEXEC_OBJ=unexw32.o
1155 # Use the Solaris dldump() function, called from unexsol.c, to dump
1156 # emacs, instead of the generic ELF dump code found in unexelf.c.
1157 # The resulting binary has a complete symbol table, and is better
1158 # for debugging and other observability tools (debuggers, pstack, etc).
1160 # If you encounter a problem using dldump(), please consider sending
1161 # a message to the OpenSolaris tools-linking mailing list:
1162 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1164 # It is likely that dldump() works with older Solaris too, but this has
1165 # not been tested, so for now this change is for Solaris 10 or newer.
1166 UNEXEC_OBJ=unexsol.o
1173 ## Let `ld' find image libs and similar things in /usr/local/lib.
1174 ## The system compiler, GCC, has apparently been modified to not
1175 ## look there, contrary to what a stock GCC would do.
1176 ### It's not our place to do this. See bug#10313#17.
1177 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1182 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1183 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1187 ### It's not our place to do this. See bug#10313#17.
1188 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1193 ## Han Boetes <han@boetes.org> says this is necessary,
1194 ## otherwise Emacs dumps core on elf systems.
1195 LD_SWITCH_SYSTEM="-Z"
1198 AC_SUBST(LD_SWITCH_SYSTEM)
1200 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1202 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1203 ## which has not been defined yet. When this was handled with cpp,
1204 ## it was expanded to null when configure sourced the s/*.h file.
1205 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1206 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1207 ## (or somesuch), but because it is supposed to go at the _front_
1208 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1209 ## Compare with the gnu-linux case below, which added to the end
1210 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1211 ## LD_SWITCH_SYSTEM_TEMACS.
1214 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1221 AC_CHECK_DECL([__ELF__])
1222 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1223 ## With ELF, make sure that all common symbols get allocated to in the
1224 ## data section. Otherwise, the dump of temacs may miss variables in
1225 ## the shared library that have been initialized. For example, with
1226 ## GNU libc, __malloc_initialized would normally be resolved to the
1227 ## shared library's .bss section, which is fatal.
1228 if test "x$GCC" = "xyes"; then
1229 C_SWITCH_MACHINE="-fno-common"
1231 AC_MSG_ERROR([Non-GCC compilers are not supported.])
1234 dnl This was the unexalpha.c case. Removed in 24.1, 2010-07-24,
1235 dnl albeit under the mistaken assumption that said file
1236 dnl was no longer used.
1237 AC_MSG_ERROR([Non-ELF systems are not supported since Emacs 24.1.])
1241 AC_SUBST(C_SWITCH_MACHINE)
1243 AC_SUBST(UNEXEC_OBJ)
1246 ## Some programs in src produce warnings saying certain subprograms
1247 ## are too complex and need a MAXMEM value greater than 2000 for
1248 ## additional optimization. --nils@exp-math.uni-essen.de
1249 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1250 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1251 if test "$opsys" = "mingw32"; then
1252 case "$canonical" in
1253 x86_64-*-mingw32) C_SWITCH_SYSTEM="-mtune=generic" ;;
1254 *) C_SWITCH_SYSTEM="-mtune=pentium4" ;;
1257 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1258 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1259 AC_SUBST(C_SWITCH_SYSTEM)
1264 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1265 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1267 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1269 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1271 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1273 ## Motif needs -lgen.
1274 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1277 AC_SUBST(LIBS_SYSTEM)
1279 ### Make sure subsequent tests use flags consistent with the build flags.
1281 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1282 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1284 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1287 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C89 or better.
1288 AC_DEFUN([AC_TYPE_SIZE_T])
1289 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1290 AC_DEFUN([AC_TYPE_UID_T])
1292 # sqrt and other floating-point functions such as fmod and frexp
1293 # are found in -lm on many systems.
1295 AC_SEARCH_LIBS([sqrt], [m])
1296 if test "X$LIBS" = "X$OLD_LIBS"; then
1299 LIB_MATH=$ac_cv_search_sqrt
1303 dnl Current possibilities handled by sed (aix4-2 -> aix,
1304 dnl gnu-linux -> gnu/linux, etc.):
1305 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1306 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1307 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1314 ## Adding -lm confuses the dynamic linker, so omit it.
1317 freebsd | dragonfly )
1318 SYSTEM_TYPE=berkeley-unix
1320 gnu-linux | gnu-kfreebsd )
1322 hpux10-20 | hpux11 )
1326 SYSTEM_TYPE=windows-nt
1328 dnl NB this may be adjusted below.
1330 SYSTEM_TYPE=berkeley-unix
1334 SYSTEM_TYPE=usg-unix-v
1340 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1341 [The type of system you are compiling for; sets `system-type'.])
1343 m4_pattern_forbid([^PKG_])
1345 AC_ARG_VAR(PKG_CONFIG_PATH, [Colon-separated list of directories
1346 searched by pkg-config])
1348 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1349 pre_PKG_CONFIG_LIBS=$LIBS
1351 PKG_PROG_PKG_CONFIG(0.9.0)
1353 dnl EMACS_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4)
1354 dnl acts like PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4,
1355 dnl HAVE_GSTUFF=yes, HAVE_GSTUFF=no) -- see pkg-config man page --
1356 dnl except that it postprocesses CFLAGS as needed for --enable-gcc-warnings.
1357 dnl EMACS_CHECK_MODULES accepts optional 3rd and 4th arguments that
1358 dnl can take the place of the default HAVE_GSTUFF=yes and HAVE_GSTUFF=no
1360 AC_DEFUN([EMACS_CHECK_MODULES],
1361 [PKG_CHECK_MODULES([$1], [$2],
1362 [$1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1363 m4_default([$3], [HAVE_$1=yes])],
1364 [m4_default([$4], [HAVE_$1=no])])])
1367 if test "${with_sound}" != "no"; then
1368 # Sound support for GNU/Linux, the free BSDs, and MinGW.
1369 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h],
1370 have_sound_header=yes, [], [
1372 #define WIN32_LEAN_AND_MEAN
1373 #include <windows.h>
1376 test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
1377 AC_MSG_ERROR([OSS sound support requested but not found.])
1379 if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
1380 # Emulation library used on NetBSD.
1381 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1382 test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
1383 AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
1384 dnl FIXME? If we did find ossaudio, should we set with_sound=bsd-ossaudio?
1385 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1389 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1391 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1392 EMACS_CHECK_MODULES([ALSA], [$ALSA_MODULES])
1393 if test $HAVE_ALSA = yes; then
1394 SAVE_CFLAGS="$CFLAGS"
1396 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1397 LIBS="$ALSA_LIBS $LIBS"
1398 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1399 emacs_alsa_normal=yes,
1400 emacs_alsa_normal=no)
1401 if test "$emacs_alsa_normal" != yes; then
1402 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1403 [[snd_lib_error_set_handler (0);]])],
1404 emacs_alsa_subdir=yes,
1405 emacs_alsa_subdir=no)
1406 if test "$emacs_alsa_subdir" != yes; then
1407 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1409 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1412 CFLAGS="$SAVE_CFLAGS"
1414 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1415 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1416 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1417 elif test "${with_sound}" = "alsa"; then
1418 AC_MSG_ERROR([ALSA sound support requested but not found.])
1420 fi dnl with_sound = alsa|yes
1422 dnl Define HAVE_SOUND if we have sound support. We know it works and
1423 dnl compiles only on the specified platforms. For others, it
1424 dnl probably doesn't make sense to try.
1425 dnl FIXME So surely we should bypass this whole section if not using
1426 dnl one of these platforms?
1427 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1429 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1430 dnl Adjust the --with-sound help text if you change this.
1431 gnu-linux|freebsd|netbsd|mingw32)
1432 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1438 AC_SUBST(CFLAGS_SOUND)
1441 dnl checks for header files
1442 AC_CHECK_HEADERS_ONCE(
1446 sys/utsname.h pwd.h utmp.h util.h)
1448 AC_MSG_CHECKING(if personality LINUX32 can be set)
1449 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1450 emacs_cv_personality_linux32=yes,
1451 emacs_cv_personality_linux32=no)
1452 AC_MSG_RESULT($emacs_cv_personality_linux32)
1454 if test $emacs_cv_personality_linux32 = yes; then
1455 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1456 [Define to 1 if personality LINUX32 can be set.])
1459 dnl On Solaris 8 there's a compilation warning for term.h because
1460 dnl it doesn't define `bool'.
1461 AC_CHECK_HEADERS(term.h, , , -)
1463 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1465 if test $ac_cv_have_decl_sys_siglist != yes; then
1466 # For Tru64, at least:
1467 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1472 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1473 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1474 #if HAVE_SYS_SOCKET_H
1475 #include <sys/socket.h>
1477 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1478 #if HAVE_SYS_SOCKET_H
1479 #include <sys/socket.h>
1481 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1482 #if HAVE_SYS_SOCKET_H
1483 #include <sys/socket.h>
1486 dnl checks for structure members
1487 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1488 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1489 struct ifreq.ifr_addr,
1490 struct ifreq.ifr_addr.sa_len], , ,
1491 [AC_INCLUDES_DEFAULT
1492 #if HAVE_SYS_SOCKET_H
1493 #include <sys/socket.h>
1499 dnl Check for endianness.
1500 dnl AC_C_BIGENDIAN is done by gnulib.
1502 dnl check for Make feature
1503 dnl AC_PROG_MAKE_SET is done by Automake.
1508 dnl check if we have GCC and autodepend is on.
1509 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1510 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1511 SAVE_CFLAGS="$CFLAGS"
1512 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1513 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1514 CFLAGS="$SAVE_CFLAGS"
1515 test -f deps.d || ac_enable_autodepend=no
1517 AC_MSG_RESULT([$ac_enable_autodepend])
1518 if test $ac_enable_autodepend = yes; then
1519 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1520 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1521 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1522 deps_frag=autodeps.mk
1525 deps_frag=$srcdir/src/$deps_frag
1528 AC_SUBST_FILE(deps_frag)
1531 lisp_frag=$srcdir/src/lisp.mk
1532 AC_SUBST_FILE(lisp_frag)
1535 dnl checks for operating system services
1536 AC_SYS_LONG_FILE_NAMES
1538 #### Choose a window system.
1540 ## We leave window_system equal to none if
1541 ## we end up building without one. Any new window system should
1542 ## set window_system to an appropriate value and add objects to
1543 ## window-system-specific substs.
1547 if test "$no_x" != yes; then
1551 LD_SWITCH_X_SITE_RPATH=
1552 if test "${x_libraries}" != NONE; then
1553 if test -n "${x_libraries}"; then
1554 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1555 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1557 x_default_search_path=""
1558 x_search_path=${x_libraries}
1559 if test -z "${x_search_path}"; then
1560 x_search_path=/usr/lib
1562 for x_library in `echo ${x_search_path}: | \
1563 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1565 ${x_library}/X11/%L/%T/%N%C%S:\
1566 ${x_library}/X11/%l/%T/%N%C%S:\
1567 ${x_library}/X11/%T/%N%C%S:\
1568 ${x_library}/X11/%L/%T/%N%S:\
1569 ${x_library}/X11/%l/%T/%N%S:\
1570 ${x_library}/X11/%T/%N%S"
1571 if test x"${x_default_search_path}" = x; then
1572 x_default_search_path=${x_search_path}
1574 x_default_search_path="${x_search_path}:${x_default_search_path}"
1578 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1580 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1581 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1584 if test x"${x_includes}" = x; then
1585 bitmapdir=/usr/include/X11/bitmaps
1587 # accumulate include directories that have X11 bitmap subdirectories
1589 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1590 if test -d "${bmd}/X11/bitmaps"; then
1591 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1593 if test -d "${bmd}/bitmaps"; then
1594 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1597 if test ${bmd_acc} != "dummyval"; then
1598 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1605 tmp_CPPFLAGS="$CPPFLAGS"
1606 tmp_CFLAGS="$CFLAGS"
1607 CPPFLAGS="$CPPFLAGS -x objective-c"
1608 CFLAGS="$CFLAGS -x objective-c"
1611 if test "${with_ns}" != no; then
1612 if test "${opsys}" = darwin; then
1614 ns_appdir=`pwd`/nextstep/Emacs.app
1615 ns_appbindir=${ns_appdir}/Contents/MacOS
1616 ns_appresdir=${ns_appdir}/Contents/Resources
1617 ns_appsrc=Cocoa/Emacs.base
1618 elif test -f $GNUSTEP_CONFIG_FILE; then
1620 ns_appdir=`pwd`/nextstep/Emacs.app
1621 ns_appbindir=${ns_appdir}
1622 ns_appresdir=${ns_appdir}/Resources
1623 ns_appsrc=GNUstep/Emacs.base
1624 dnl FIXME sourcing this several times in subshells seems inefficient.
1625 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1626 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1627 dnl I seemed to need these as well with GNUstep-startup 0.25.
1628 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1629 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1630 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1631 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1632 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1633 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1634 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1635 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1636 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1637 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1638 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1639 dnl If they had chosen to either define it or not, we could have
1640 dnl just used AC_CHECK_DECL here.
1641 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1642 emacs_cv_objc_exceptions,
1643 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1644 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1648 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1649 if test $emacs_cv_objc_exceptions = yes; then
1650 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1651 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1652 [Define if GNUstep uses ObjC exceptions.])
1653 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1657 dnl This is only used while we test the NS headers, it gets reset below.
1658 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1660 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1661 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1662 files are missing or cannot be compiled.])])
1665 if test "${NS_IMPL_COCOA}" = "yes"; then
1666 AC_MSG_CHECKING([for OSX 10.4 or newer])
1667 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1669 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1670 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
1673 error "OSX 10.4 or newer required";
1677 ns_osx_have_104=yes,
1679 AC_MSG_RESULT([$ns_osx_have_104])
1681 if test $ns_osx_have_104 = no; then
1682 AC_MSG_ERROR([`OSX 10.4 or newer is required']);
1684 AC_MSG_CHECKING([for OSX 10.5 or newer])
1685 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1687 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1688 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1050
1691 error "OSX 10.5 not found";
1695 ns_osx_have_105=yes,
1697 AC_MSG_RESULT([$ns_osx_have_105])
1698 if test $ns_osx_have_105 = yes; then
1699 macfont_file="macfont.o"
1702 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1704 ns_have_nsinteger=yes,
1705 ns_have_nsinteger=no)
1706 if test $ns_have_nsinteger = yes; then
1707 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1711 AC_SUBST(LIBS_GNUSTEP)
1713 INSTALL_ARCH_INDEP_EXTRA=install-etc
1714 ns_self_contained=no
1717 if test "${HAVE_NS}" = yes; then
1718 if test "$with_toolkit_scroll_bars" = "no"; then
1719 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1722 window_system=nextstep
1723 # set up packaging dirs
1724 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1725 ns_self_contained=yes
1726 prefix=${ns_appresdir}
1727 exec_prefix=${ns_appbindir}
1728 dnl This one isn't really used, only archlibdir is.
1729 libexecdir="\${ns_appbindir}/libexec"
1730 archlibdir="\${ns_appbindir}/libexec"
1731 etcdocdir="\${ns_appresdir}/etc"
1732 etcdir="\${ns_appresdir}/etc"
1733 dnl FIXME maybe set datarootdir instead.
1734 dnl That would also get applications, icons, man.
1735 infodir="\${ns_appresdir}/info"
1736 mandir="\${ns_appresdir}/man"
1737 lispdir="\${ns_appresdir}/lisp"
1738 INSTALL_ARCH_INDEP_EXTRA=
1741 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o $macfont_file"
1743 CFLAGS="$tmp_CFLAGS"
1744 CPPFLAGS="$tmp_CPPFLAGS"
1745 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1746 AC_SUBST(ns_self_contained)
1748 AC_SUBST(NS_OBJC_OBJ)
1759 if test "${with_w32}" != no; then
1762 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1763 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1764 cannot be found.])])
1767 ## Using --with-w32 with MinGW is a no-op, but we allow it.
1770 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
1775 if test "${opsys}" = "mingw32"; then
1776 AC_MSG_CHECKING([whether Windows API headers are recent enough])
1777 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1778 #include <windows.h>
1779 #include <usp10.h>]],
1780 [[PIMAGE_NT_HEADERS pHeader;
1781 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
1782 [emacs_cv_w32api=yes
1785 AC_MSG_RESULT($emacs_cv_w32api)
1786 if test "${emacs_cv_w32api}" = "no"; then
1787 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
1798 if test "${HAVE_W32}" = "yes"; then
1799 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1800 AC_CHECK_TOOL(WINDRES, [windres],
1801 [AC_MSG_ERROR([No resource compiler found.])])
1802 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1803 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1804 EMACSRES="emacs.res"
1805 case "$canonical" in
1806 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
1807 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
1809 if test "${opsys}" = "cygwin"; then
1810 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1811 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1812 # Tell the linker that emacs.res is an object (which we compile from
1813 # the rc file), not a linker script.
1814 W32_RES_LINK="-Wl,emacs.res"
1816 UPDATE_MANIFEST=update-game-score.exe.manifest
1817 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
1818 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
1819 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
1820 W32_RES_LINK="\$(EMACSRES)"
1821 CLIENTRES="emacsclient.res"
1822 CLIENTW="emacsclientw\$(EXEEXT)"
1823 FIRSTFILE_OBJ=firstfile.o
1826 LIBS_ECLIENT="-lcomctl32"
1827 LIB_WSOCK32="-lwsock32"
1828 NTLIB="ntlib.$ac_objext"
1829 XARGS_LIMIT="-s 10000"
1835 AC_SUBST(EMACS_MANIFEST)
1836 AC_SUBST(UPDATE_MANIFEST)
1839 AC_SUBST(W32_RES_LINK)
1840 AC_SUBST(FIRSTFILE_OBJ)
1843 AC_SUBST(LIBS_ECLIENT)
1844 AC_SUBST(LIB_WSOCK32)
1846 AC_SUBST(XARGS_LIMIT)
1848 if test "${HAVE_W32}" = "yes"; then
1853 ## $window_system is now set to the window system we will
1856 if test "$window_system" = none && test "$gl_gcc_warnings" = yes; then
1857 # Too many warnings for now.
1859 nw="$nw -Wsuggest-attribute=const"
1860 nw="$nw -Wsuggest-attribute=noreturn"
1861 gl_MANYWARN_COMPLEMENT([WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
1863 gl_WARN_ADD([-Wno-unused-variable])
1864 gl_WARN_ADD([-Wno-unused-but-set-variable])
1865 gl_WARN_ADD([-Wno-unused-but-set-parameter])
1873 case "${window_system}" in
1878 case "${with_x_toolkit}" in
1879 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1880 motif ) USE_X_TOOLKIT=MOTIF ;;
1882 term_header=gtkutil.h
1883 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1884 dnl USE_X_TOOLKIT is set.
1885 USE_X_TOOLKIT=none ;;
1886 gtk2 ) with_gtk2=yes
1887 term_header=gtkutil.h
1888 USE_X_TOOLKIT=none ;;
1889 gtk3 ) with_gtk3=yes
1890 term_header=gtkutil.h
1891 USE_X_TOOLKIT=none ;;
1892 no ) USE_X_TOOLKIT=none ;;
1893 dnl If user did not say whether to use a toolkit, make this decision later:
1894 dnl use the toolkit if we have gtk, or X11R5 or newer.
1895 * ) USE_X_TOOLKIT=maybe ;;
1899 term_header=nsterm.h
1902 term_header=w32term.h
1906 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1907 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1908 if test "$HAVE_XSERVER" = true ||
1909 test -n "$DISPLAY" ||
1910 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1911 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1912 were found. You should install the relevant development files for X
1913 and for the toolkit you want, such as Gtk+ or Motif. Also make
1914 sure you have development files for image handling, i.e.
1915 tiff, gif, jpeg, png and xpm.
1916 If you are sure you want Emacs compiled without X window support, pass
1922 # Does the opsystem file prohibit the use of the GNU malloc?
1923 # Assume not, until told otherwise.
1927 [whether malloc is Doug Lea style],
1928 [emacs_cv_var_doug_lea_malloc],
1929 [emacs_cv_var_doug_lea_malloc=no
1930 dnl Hooks do not work with address sanitization.
1931 if test "$emacs_cv_sanitize_address" != yes; then
1934 [[#include <malloc.h>
1935 static void hook (void) {}]],
1936 [[malloc_set_state (malloc_get_state ());
1937 __after_morecore_hook = hook;
1938 __malloc_initialize_hook = hook;]])],
1939 [emacs_cv_var_doug_lea_malloc=yes])])
1941 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1943 system_malloc=$emacs_cv_sanitize_address
1945 ## darwin ld insists on the use of malloc routines in the System framework.
1946 darwin|sol2-10) system_malloc=yes ;;
1950 if test "${system_malloc}" = "yes"; then
1951 AC_DEFINE([SYSTEM_MALLOC], 1,
1952 [Define to 1 to use the system memory allocator, even if it is not
1956 (The GNU allocators don't work with this system configuration.)"
1959 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1960 VMLIMIT_OBJ=vm-limit.o
1962 AC_CHECK_HEADERS([sys/vlimit.h])
1963 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
1966 [[extern char data_start[]; char ch;]],
1967 [[return data_start < &ch;]])],
1968 [emacs_cv_data_start=yes],
1969 [emacs_cv_data_start=no])])
1970 if test $emacs_cv_data_start = yes; then
1971 AC_DEFINE([HAVE_DATA_START], 1,
1972 [Define to 1 if data_start is the address of the start
1973 of the main data segment.])
1976 AC_SUBST(GMALLOC_OBJ)
1977 AC_SUBST(VMLIMIT_OBJ)
1979 if test "$doug_lea_malloc" = "yes" ; then
1980 if test "$GNU_MALLOC" = yes ; then
1982 (Using Doug Lea's new malloc from the GNU C Library.)"
1984 AC_DEFINE(DOUG_LEA_MALLOC, 1,
1985 [Define to 1 if the system memory allocator is Doug Lea style,
1986 with malloc hooks and malloc_set_state.])
1988 ## Use mmap directly for allocating larger buffers.
1989 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
1990 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
1991 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
1993 gnu*) REL_ALLOC=no ;;
1997 if test x"${REL_ALLOC}" = x; then
1998 REL_ALLOC=${GNU_MALLOC}
2001 use_mmap_for_buffers=no
2003 cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
2007 if test $use_mmap_for_buffers = yes; then
2008 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
2012 LIBS="$LIBS_SYSTEM $LIBS"
2014 dnl FIXME replace main with a function we actually want from this library.
2015 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
2017 dnl Check for the POSIX thread library.
2019 AC_CHECK_HEADERS_ONCE(pthread.h)
2020 if test "$ac_cv_header_pthread_h"; then
2021 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
2022 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
2023 dnl testing for pthread_kill if Emacs uses gmalloc.c.
2024 if test "$GMALLOC_OBJ" = gmalloc.o; then
2025 emacs_pthread_function=pthread_atfork
2027 emacs_pthread_function=pthread_kill
2030 AC_SEARCH_LIBS([$emacs_pthread_function], [pthread],
2031 [AC_DEFINE([HAVE_PTHREAD], [1],
2032 [Define to 1 if you have pthread (-lpthread).])])
2033 if test "X$LIBS" != "X$OLD_LIBS"; then
2034 eval LIB_PTHREAD=\$ac_cv_search_$emacs_pthread_function
2038 AC_SUBST([LIB_PTHREAD])
2040 dnl Check for need for bigtoc support on IBM AIX
2044 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
2046 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
2047 *) gdb_cv_bigtoc=-bbigtoc ;;
2050 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
2051 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
2056 # Change CFLAGS, CPPFLAGS, and LIBS temporarily so that C_SWITCH_X_SITE
2057 # is for the tests that follow. We set them back later on.
2059 REAL_CFLAGS="$CFLAGS"
2060 REAL_CPPFLAGS="$CPPFLAGS"
2063 if test "${HAVE_X11}" = "yes"; then
2064 DEFS="$C_SWITCH_X_SITE $DEFS"
2065 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2067 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2068 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2070 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2071 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2072 # but it's more convenient here to set LD_RUN_PATH since this
2073 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2074 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2075 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2079 if test "${opsys}" = "gnu-linux"; then
2080 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2081 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2082 [[XOpenDisplay ("foo");]])],
2083 [xgnu_linux_first_failure=no],
2084 [xgnu_linux_first_failure=yes])
2085 if test "${xgnu_linux_first_failure}" = "yes"; then
2086 OLD_CPPFLAGS="$CPPFLAGS"
2088 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2089 LIBS="$LIBS -b i486-linuxaout"
2090 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2091 [[XOpenDisplay ("foo");]])],
2092 [xgnu_linux_second_failure=no],
2093 [xgnu_linux_second_failure=yes])
2094 if test "${xgnu_linux_second_failure}" = "yes"; then
2095 # If we get the same failure with -b, there is no use adding -b.
2096 # So leave it out. This plays safe.
2099 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2100 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2103 CPPFLAGS=$OLD_CPPFLAGS
2110 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2111 # header files included from there.
2112 AC_MSG_CHECKING(for Xkb)
2113 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2114 #include <X11/XKBlib.h>]],
2115 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2116 emacs_xkb=yes, emacs_xkb=no)
2117 AC_MSG_RESULT($emacs_xkb)
2118 if test $emacs_xkb = yes; then
2119 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2122 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2123 XScreenNumberOfScreen)
2126 if test "${window_system}" = "x11"; then
2127 AC_MSG_CHECKING(X11 version 6)
2128 AC_CACHE_VAL(emacs_cv_x11_version_6,
2129 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2130 [[#if XlibSpecificationRelease < 6
2133 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2134 if test $emacs_cv_x11_version_6 = yes; then
2135 AC_MSG_RESULT(6 or newer)
2136 AC_DEFINE(HAVE_X11R6, 1,
2137 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2138 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2139 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2143 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2144 [Define if you have usable X11R6-style XIM support.])
2148 AC_MSG_RESULT(before 6)
2153 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
2155 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2156 if test "${with_rsvg}" != "no"; then
2157 RSVG_REQUIRED=2.11.0
2158 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2160 EMACS_CHECK_MODULES([RSVG], [$RSVG_MODULE])
2161 AC_SUBST(RSVG_CFLAGS)
2164 if test $HAVE_RSVG = yes; then
2165 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2166 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2167 # Windows loads librsvg dynamically
2168 if test "${opsys}" = "mingw32"; then
2176 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${HAVE_W32}" = "yes"; then
2177 if test "${with_imagemagick}" != "no"; then
2178 ## 6.3.5 is the earliest version known to work; see Bug#17339.
2179 ## 6.8.2 makes Emacs crash; see Bug#13867.
2180 IMAGEMAGICK_MODULE="Wand >= 6.3.5 Wand != 6.8.2"
2181 EMACS_CHECK_MODULES([IMAGEMAGICK], [$IMAGEMAGICK_MODULE])
2182 AC_SUBST(IMAGEMAGICK_CFLAGS)
2183 AC_SUBST(IMAGEMAGICK_LIBS)
2185 if test $HAVE_IMAGEMAGICK = yes; then
2186 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2189 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2190 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2191 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
2201 gtk_term_header=$term_header
2204 if test "${opsys}" != "mingw32"; then
2205 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2208 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2210 dnl Checks for libraries.
2211 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2212 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2213 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2214 AC_MSG_ERROR($GTK_PKG_ERRORS)
2216 if test "$pkg_check_gtk" = "yes"; then
2217 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2218 GTK_OBJ=emacsgtkfixed.o
2219 gtk_term_header=gtkutil.h
2220 USE_GTK_TOOLKIT="GTK3"
2221 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2222 AC_DEFINE([GDK_DISABLE_DEPRECATION_WARNINGS], [1],
2223 [Define to 1 to disable GTK+/GDK deprecation warnings.])
2224 AC_DEFINE([GLIB_DISABLE_DEPRECATION_WARNINGS], [1],
2225 [Define to 1 to disable Glib deprecation warnings.])
2229 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2233 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2236 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2238 dnl Checks for libraries.
2239 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2240 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2241 if test "$pkg_check_gtk" = "no" &&
2242 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2244 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2246 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2253 if test x"$pkg_check_gtk" = xyes; then
2256 CFLAGS="$CFLAGS $GTK_CFLAGS"
2257 LIBS="$GTK_LIBS $LIBS"
2258 dnl Try to compile a simple GTK program.
2259 AC_MSG_CHECKING([whether GTK compiles])
2263 [[/* Check the Gtk and Glib APIs. */
2264 #include <gtk/gtk.h>
2265 #include <glib-object.h>
2267 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2271 GtkSettings *gs = 0;
2272 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2273 strict C prohibits this. Use gtk_main_iteration to test that the
2274 libraries are there. */
2275 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2276 0, 0, 0, G_CALLBACK (callback), 0))
2277 gtk_main_iteration ();
2280 AC_MSG_RESULT([$GTK_COMPILES])
2281 if test "${GTK_COMPILES}" != "yes"; then
2283 if test "$USE_X_TOOLKIT" != "maybe"; then
2284 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2287 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2289 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2290 GTK_OBJ="gtkutil.o $GTK_OBJ"
2291 term_header=$gtk_term_header
2293 if "$PKG_CONFIG" --atleast-version=2.10 gtk+-2.0; then
2296 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2297 closing open displays. This is no problem if you just use
2298 one display, but if you use more than one and close one of them
2308 if test "${HAVE_GTK}" = "yes"; then
2310 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2311 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2312 if test "$with_toolkit_scroll_bars" != no; then
2313 with_toolkit_scroll_bars=yes
2316 dnl Check if we have the old file selection dialog declared and
2317 dnl in the link library. In 2.x it may be in the library,
2318 dnl but not declared if deprecated featured has been selected out.
2319 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2320 HAVE_GTK_FILE_SELECTION=no
2321 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2322 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2323 #include <gtk/gtk.h>])
2324 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2325 AC_CHECK_FUNCS(gtk_file_selection_new)
2328 dnl Same as above for gtk_handle_box.
2329 HAVE_GTK_HANDLE_BOX=no
2330 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2331 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2332 #include <gtk/gtk.h>])
2333 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2334 AC_CHECK_FUNCS(gtk_handle_box_new)
2337 dnl Same as above for gtk_tearoff_menu_item.
2338 HAVE_GTK_TEAROFF_MENU_ITEM=no
2339 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2340 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2341 #include <gtk/gtk.h>])
2342 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2343 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2346 dnl Check for functions introduced in 2.14 and later.
2347 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2348 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2349 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2350 gtk_orientable_set_orientation \
2351 gtk_window_set_has_resize_grip)
2353 term_header=gtkutil.h
2359 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2360 dnl other platforms.
2363 if test "${with_dbus}" = "yes"; then
2364 EMACS_CHECK_MODULES([DBUS], [dbus-1 >= 1.0])
2365 if test "$HAVE_DBUS" = yes; then
2366 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2367 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2368 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2371 LIBS="$LIBS $DBUS_LIBS"
2372 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2373 dbus_type_is_valid \
2374 dbus_validate_bus_name \
2375 dbus_validate_path \
2376 dbus_validate_interface \
2377 dbus_validate_member)
2382 AC_SUBST(DBUS_CFLAGS)
2386 dnl GSettings has been tested under GNU/Linux only.
2388 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2389 EMACS_CHECK_MODULES([GSETTINGS], [gio-2.0 >= 2.26])
2390 if test "$HAVE_GSETTINGS" = "yes"; then
2392 CFLAGS="$CFLAGS $GSETTINGS_CFLAGS"
2394 LIBS="$LIBS $GSETTINGS_LIBS"
2395 AC_MSG_CHECKING([whether GSettings is in gio])
2398 [[/* Check that gsettings really is present. */
2399 #include <glib-object.h>
2400 #include <gio/gio.h>
2403 GSettings *settings;
2404 GVariant *val = g_settings_get_value (settings, "");
2406 [], HAVE_GSETTINGS=no)
2407 AC_MSG_RESULT([$HAVE_GSETTINGS])
2409 if test "$HAVE_GSETTINGS" = "yes"; then
2410 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2411 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2412 SETTINGS_LIBS="$GSETTINGS_LIBS"
2419 dnl GConf has been tested under GNU/Linux only.
2420 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2422 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2423 EMACS_CHECK_MODULES([GCONF], [gconf-2.0 >= 2.13])
2424 if test "$HAVE_GCONF" = yes; then
2425 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2426 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2427 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2428 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2432 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2433 EMACS_CHECK_MODULES([GOBJECT], [gobject-2.0 >= 2.0])
2434 if test "$HAVE_GOBJECT" = "yes"; then
2435 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2436 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2438 SAVE_CFLAGS="$CFLAGS"
2440 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2441 LIBS="$SETTINGS_LIBS $LIBS"
2442 CFLAGS="$SAVE_CFLAGS"
2445 AC_SUBST(SETTINGS_CFLAGS)
2446 AC_SUBST(SETTINGS_LIBS)
2449 dnl SELinux is available for GNU/Linux only.
2452 if test "${with_selinux}" = "yes"; then
2453 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2454 if test "$HAVE_LIBSELINUX" = yes; then
2455 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2456 LIBSELINUX_LIBS=-lselinux
2459 AC_SUBST(LIBSELINUX_LIBS)
2463 if test "${with_gnutls}" = "yes" ; then
2464 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 3.0.0],
2465 [HAVE_GNUTLS3=yes], [HAVE_GNUTLS3=no])
2466 if test "${HAVE_GNUTLS3}" = "yes"; then
2467 AC_DEFINE(HAVE_GNUTLS3, 1, [Define if using GnuTLS v3.])
2470 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6],
2471 [HAVE_GNUTLS=yes], [HAVE_GNUTLS=no])
2473 if test "${HAVE_GNUTLS}" = "yes"; then
2474 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2477 # Windows loads GnuTLS dynamically
2478 if test "${opsys}" = "mingw32"; then
2483 AC_SUBST(LIBGNUTLS_LIBS)
2484 AC_SUBST(LIBGNUTLS_CFLAGS)
2489 dnl FIXME? Don't auto-detect on NS, but do allow someone to specify
2490 dnl a particular library. This doesn't make much sense?
2491 if test "${with_ns}" = yes && test ${with_file_notification} = yes; then
2492 with_file_notification=no
2495 dnl MS Windows native file monitor is available for mingw32 only.
2496 case $with_file_notification,$opsys in
2497 w32,* | yes,mingw32)
2498 AC_CHECK_HEADER(windows.h)
2499 if test "$ac_cv_header_windows_h" = yes ; then
2500 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2501 NOTIFY_OBJ=w32notify.o
2502 NOTIFY_SUMMARY="yes (w32)"
2506 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2507 dnl has been added in glib 2.24. It has been tested under
2508 dnl GNU/Linux only. We take precedence over inotify, but this makes
2509 dnl only sense when glib has been compiled with inotify support. How
2511 case $with_file_notification,$NOTIFY_OBJ in
2513 EMACS_CHECK_MODULES([GFILENOTIFY], [gio-2.0 >= 2.24])
2514 if test "$HAVE_GFILENOTIFY" = "yes"; then
2515 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2516 NOTIFY_OBJ=gfilenotify.o
2517 NOTIFY_SUMMARY="yes -lgio (gfile)"
2521 dnl inotify is only available on GNU/Linux.
2522 case $with_file_notification,$NOTIFY_OBJ in
2524 AC_CHECK_HEADER(sys/inotify.h)
2525 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2526 AC_CHECK_FUNC(inotify_init1)
2527 if test "$ac_cv_func_inotify_init1" = yes; then
2528 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2529 NOTIFY_OBJ=inotify.o
2530 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2535 case $with_file_notification,$NOTIFY_OBJ in
2536 yes,* | no,* | *,?*) ;;
2537 *) AC_MSG_ERROR([File notification `$with_file_notification' requested but requirements not found.]) ;;
2540 if test -n "$NOTIFY_OBJ"; then
2541 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2543 AC_SUBST(NOTIFY_OBJ)
2544 AC_SUBST(GFILENOTIFY_CFLAGS)
2545 AC_SUBST(GFILENOTIFY_LIBS)
2547 dnl Do not put whitespace before the #include statements below.
2548 dnl Older compilers (eg sunos4 cc) choke on it.
2551 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2552 if test "$with_xaw3d" != no; then
2553 AC_CACHE_VAL(emacs_cv_xaw3d,
2554 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2555 #include <X11/Intrinsic.h>
2556 #include <X11/Xaw3d/Simple.h>]],
2558 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2559 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2560 emacs_cv_xaw3d=no)])
2564 if test $emacs_cv_xaw3d = yes; then
2565 AC_MSG_CHECKING(for xaw3d)
2566 AC_MSG_RESULT([yes; using Lucid toolkit])
2570 AC_DEFINE(HAVE_XAW3D, 1,
2571 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2573 AC_MSG_CHECKING(for xaw3d)
2575 AC_MSG_CHECKING(for libXaw)
2576 AC_CACHE_VAL(emacs_cv_xaw,
2577 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2578 #include <X11/Intrinsic.h>
2579 #include <X11/Xaw/Simple.h>]],
2583 if test $emacs_cv_xaw = yes; then
2584 AC_MSG_RESULT([yes; using Lucid toolkit])
2587 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2588 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2590 AC_MSG_ERROR([No X toolkit could be found.
2591 If you are sure you want Emacs compiled without an X toolkit, pass
2593 to configure. Otherwise, install the development libraries for the toolkit
2594 that you want to use (e.g. Gtk+) and re-run configure.])
2599 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2603 if test "${USE_X_TOOLKIT}" != "none"; then
2604 AC_MSG_CHECKING(X11 toolkit version)
2605 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2606 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2607 [[#if XtSpecificationRelease < 6
2610 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2611 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2612 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2613 AC_MSG_RESULT(6 or newer)
2614 AC_DEFINE(HAVE_X11XTR6, 1,
2615 [Define to 1 if you have the X11R6 or newer version of Xt.])
2616 LIBXTR6="-lSM -lICE"
2618 ## Use libw.a along with X11R6 Xt.
2619 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2622 AC_MSG_RESULT(before 6)
2625 dnl If using toolkit, check whether libXmu.a exists.
2626 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2628 if test x$HAVE_X11XTR6 = xyes; then
2629 OTHERLIBS='-lXt -lSM -lICE'
2633 AC_SEARCH_LIBS([XmuConvertStandardSelection], [Xmu], [], [], [$OTHERLIBS])
2634 if test "X$LIBS" != "X$OLDLIBS"; then
2635 LIBXMU=$ac_cv_search_XmuConvertStandardSelection
2638 dnl ac_cv_search_XmuConvertStandardSelection is also referenced below.
2644 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2645 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2646 if test -d /usr/include/openmotif; then
2647 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2648 emacs_cv_openmotif=yes
2649 case "$canonical" in
2650 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2651 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2654 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2657 emacs_cv_openmotif=no
2659 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2660 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2661 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2664 Motif version prior to 2.1.
2666 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2667 if test $emacs_cv_motif_version_2_1 = yes; then
2668 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2669 if test x$emacs_cv_openmotif = xyes; then
2670 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2673 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2674 # We put this in CFLAGS temporarily to precede other -I options
2675 # that might be in CFLAGS temporarily.
2676 # We put this in CPPFLAGS where it precedes the other -I options.
2677 OLD_CPPFLAGS=$CPPFLAGS
2679 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2680 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2681 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2683 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2684 if test $emacs_cv_lesstif = yes; then
2685 # Make sure this -I option remains in CPPFLAGS after it is set
2686 # back to REAL_CPPFLAGS.
2687 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2688 # have those other -I options anyway. Ultimately, having this
2689 # directory ultimately in CPPFLAGS will be enough.
2690 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2691 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2694 CPPFLAGS=$OLD_CPPFLAGS
2697 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2698 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2701 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2702 dnl using Motif or Xaw3d is available, and unless
2703 dnl --with-toolkit-scroll-bars=no was specified.
2705 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2706 [Define to 1 if we should use toolkit scroll bars.])dnl
2707 USE_TOOLKIT_SCROLL_BARS=no
2708 if test "${with_toolkit_scroll_bars}" != "no"; then
2709 if test "${USE_X_TOOLKIT}" != "none"; then
2710 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2711 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2713 USE_TOOLKIT_SCROLL_BARS=yes
2714 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2715 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2716 USE_TOOLKIT_SCROLL_BARS=yes
2718 elif test "${HAVE_GTK}" = "yes"; then
2719 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2720 USE_TOOLKIT_SCROLL_BARS=yes
2721 elif test "${HAVE_NS}" = "yes"; then
2722 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2723 USE_TOOLKIT_SCROLL_BARS=yes
2724 elif test "${HAVE_W32}" = "yes"; then
2725 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2726 USE_TOOLKIT_SCROLL_BARS=yes
2730 dnl See if XIM is available.
2731 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2732 #include <X11/Xlib.h>
2733 #include <X11/Xresource.h>]],
2734 [[XIMProc callback;]])],
2736 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2739 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2741 if test "${with_xim}" != "no"; then
2742 AC_DEFINE(USE_XIM, 1,
2743 [Define to 1 if we should use XIM, if it is available.])
2747 if test "${HAVE_XIM}" != "no"; then
2749 if test "$GCC" = yes; then
2750 CFLAGS="$CFLAGS --pedantic-errors"
2752 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2753 #include <X11/Xlib.h>
2754 #include <X11/Xresource.h>]],
2760 XPointer *client_data;
2762 /* If we're not using GCC, it's probably not XFree86, and this is
2763 probably right, but we can't use something like --pedantic-errors. */
2764 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2765 char*, XIMProc, XPointer*);
2767 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2769 [emacs_cv_arg6_star=yes])
2770 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2771 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2772 either XPointer or XPointer*.])dnl
2773 if test "$emacs_cv_arg6_star" = yes; then
2774 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2776 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2781 ### Start of font-backend (under any platform) section.
2782 # (nothing here yet -- this is a placeholder)
2783 ### End of font-backend (under any platform) section.
2785 ### Start of font-backend (under X11) section.
2786 if test "${HAVE_X11}" = "yes"; then
2787 EMACS_CHECK_MODULES([FONTCONFIG], [fontconfig >= 2.2.0],
2788 [HAVE_FC=yes], [HAVE_FC=no])
2790 ## Use -lXft if available, unless `--with-xft=no'.
2792 if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2795 if test "x${with_xft}" != "xno"; then
2797 EMACS_CHECK_MODULES([XFT], [xft >= 0.13.0], [], [HAVE_XFT=no])
2798 ## Because xftfont.c uses XRenderQueryExtension, we also
2799 ## need to link to -lXrender.
2801 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2802 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2803 OLD_CPPFLAGS="$CPPFLAGS"
2804 OLD_CFLAGS="$CFLAGS"
2806 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2807 CFLAGS="$CFLAGS $XFT_CFLAGS"
2808 XFT_LIBS="-lXrender $XFT_LIBS"
2809 LIBS="$XFT_LIBS $LIBS"
2810 AC_CHECK_HEADER(X11/Xft/Xft.h,
2811 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
2812 [[#include <X11/X.h>]])
2814 if test "${HAVE_XFT}" = "yes"; then
2815 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2817 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2818 fi # "${HAVE_XFT}" = "yes"
2819 CPPFLAGS=$OLD_CPPFLAGS
2822 fi # "$HAVE_XFT" != no
2823 fi # "x${with_xft}" != "xno"
2825 ## We used to allow building with FreeType and without Xft.
2826 ## However, the ftx font backend driver is not in good shape.
2827 if test "$HAVE_XFT" != "yes"; then
2828 dnl For the "Does Emacs use" message at the end.
2832 dnl Strict linkers fail with
2833 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2834 dnl if -lfreetype is not specified.
2835 dnl The following is needed to set FREETYPE_LIBS.
2836 EMACS_CHECK_MODULES([FREETYPE], [freetype2])
2838 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2842 if test "${HAVE_FREETYPE}" = "yes"; then
2843 AC_DEFINE(HAVE_FREETYPE, 1,
2844 [Define to 1 if using the freetype and fontconfig libraries.])
2845 if test "${with_libotf}" != "no"; then
2846 EMACS_CHECK_MODULES([LIBOTF], [libotf])
2847 if test "$HAVE_LIBOTF" = "yes"; then
2848 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2849 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2850 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2851 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2852 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2853 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2854 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2858 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2859 dnl Does the new font backend require it, or can it work without it?
2863 if test "${HAVE_LIBOTF}" = yes; then
2864 if test "${with_m17n_flt}" != "no"; then
2865 EMACS_CHECK_MODULES([M17N_FLT], [m17n-flt])
2866 if test "$HAVE_M17N_FLT" = "yes"; then
2867 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2878 ### End of font-backend (under X11) section.
2880 AC_SUBST(FREETYPE_CFLAGS)
2881 AC_SUBST(FREETYPE_LIBS)
2882 AC_SUBST(FONTCONFIG_CFLAGS)
2883 AC_SUBST(FONTCONFIG_LIBS)
2884 AC_SUBST(LIBOTF_CFLAGS)
2885 AC_SUBST(LIBOTF_LIBS)
2886 AC_SUBST(M17N_FLT_CFLAGS)
2887 AC_SUBST(M17N_FLT_LIBS)
2889 ### Use -lXpm if available, unless `--with-xpm=no'.
2890 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
2893 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
2894 if test "${with_xpm}" != "no"; then
2895 SAVE_CPPFLAGS="$CPPFLAGS"
2896 SAVE_LDFLAGS="$LDFLAGS"
2897 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
2898 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
2899 AC_CHECK_HEADER(X11/xpm.h,
2900 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
2901 if test "${HAVE_XPM}" = "yes"; then
2902 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2903 AC_EGREP_CPP(no_return_alloc_pixels,
2904 [#include "X11/xpm.h"
2905 #ifndef XpmReturnAllocPixels
2906 no_return_alloc_pixels
2908 ], HAVE_XPM=no, HAVE_XPM=yes)
2910 if test "${HAVE_XPM}" = "yes"; then
2911 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
2915 CPPFLAGS="$SAVE_CPPFLAGS"
2916 LDFLAGS="$SAVE_LDFLAGS"
2921 if test "${HAVE_XPM}" = "yes"; then
2922 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2927 if test "${HAVE_X11}" = "yes"; then
2928 if test "${with_xpm}" != "no"; then
2929 AC_CHECK_HEADER(X11/xpm.h,
2930 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2931 if test "${HAVE_XPM}" = "yes"; then
2932 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2933 AC_EGREP_CPP(no_return_alloc_pixels,
2934 [#include "X11/xpm.h"
2935 #ifndef XpmReturnAllocPixels
2936 no_return_alloc_pixels
2938 ], HAVE_XPM=no, HAVE_XPM=yes)
2940 if test "${HAVE_XPM}" = "yes"; then
2948 if test "${HAVE_XPM}" = "yes"; then
2949 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2954 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
2955 ### slightly different requirements wrt image libraries (it doesn't
2956 ### use -lXpm because it loads the xpm shared library dynamically at
2958 if test "${opsys}" = "mingw32"; then
2959 if test "${with_xpm}" != "no"; then
2960 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
2964 if test "${HAVE_XPM}" = "yes"; then
2965 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2971 ### Use -ljpeg if available, unless `--with-jpeg=no'.
2972 ### mingw32 doesn't use -ljpeg, since it loads the library dynamically.
2975 if test "${opsys}" = "mingw32"; then
2976 if test "${with_jpeg}" != "no"; then
2977 dnl Checking for jpeglib.h can lose because of a redefinition of
2979 AC_CHECK_HEADER(jerror.h, HAVE_JPEG=yes, HAVE_JPEG=no)
2981 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2982 if test "${HAVE_JPEG}" = "yes"; then
2983 AC_DEFINE(HAVE_JPEG)
2984 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2985 [#include <jpeglib.h>
2986 version=JPEG_LIB_VERSION
2988 [AC_DEFINE(HAVE_JPEG)],
2989 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2992 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2993 if test "${with_jpeg}" != "no"; then
2994 dnl Checking for jpeglib.h can lose because of a redefinition of
2996 AC_CHECK_HEADER(jerror.h,
2997 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
3000 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
3001 if test "${HAVE_JPEG}" = "yes"; then
3002 AC_DEFINE(HAVE_JPEG)
3003 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
3004 [#include <jpeglib.h>
3005 version=JPEG_LIB_VERSION
3007 [AC_DEFINE(HAVE_JPEG)],
3008 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
3011 if test "${HAVE_JPEG}" = "yes"; then
3019 if test "${with_zlib}" != "no"; then
3021 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
3023 case $ac_cv_search_inflateEnd in
3024 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3027 if test "${HAVE_ZLIB}" = "yes"; then
3028 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3029 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3030 if test "${opsys}" = "mingw32"; then
3036 ### Use -lpng if available, unless `--with-png=no'.
3040 if test "${with_png}" != no; then
3041 # mingw32 loads the library dynamically.
3042 if test "$opsys" = mingw32; then
3043 AC_CHECK_HEADER([png.h], [HAVE_PNG=yes])
3044 elif png_cflags=`(libpng-config --cflags) 2>&AS_MESSAGE_LOG_FD` &&
3045 png_libs=`(libpng-config --libs) 2>&AS_MESSAGE_LOG_FD`
3048 PNG_CFLAGS=`AS_ECHO(["$png_cflags"]) | sed -e "$edit_cflags"`
3051 # libpng-config does not work; configure by hand.
3052 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
3053 # in /usr/include/libpng.
3054 AC_CHECK_HEADERS([png.h libpng/png.h],
3055 [AC_CHECK_LIB([png], [png_get_channels],
3058 if test "$ac_cv_header_png_h" != yes; then
3059 PNG_CFLAGS=-I/usr/include/libpng
3064 # $LIBPNG requires explicit -lz in some cases.
3065 # We don't know what those cases are, exactly, so play it safe and
3066 # append -lz to any nonempty $LIBPNG, unless we're already using LIBZ.
3067 if test -n "$LIBPNG" && test -z "$LIBZ"; then
3068 LIBPNG="$LIBPNG -lz"
3071 if test $HAVE_PNG = yes; then
3072 AC_DEFINE([HAVE_PNG], [1], [Define to 1 if you have the png library.])
3075 CFLAGS="$CFLAGS $PNG_CFLAGS"
3076 AC_CHECK_DECL([png_longjmp],
3078 [AC_DEFINE([PNG_DEPSTRUCT], [],
3079 [Define to empty to suppress deprecation warnings when building
3080 with --enable-gcc-warnings and with libpng versions before 1.5,
3081 which lack png_longjmp.])],
3087 AC_SUBST(PNG_CFLAGS)
3089 ### Use -ltiff if available, unless `--with-tiff=no'.
3090 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3093 if test "${opsys}" = "mingw32"; then
3094 if test "${with_tiff}" != "no"; then
3095 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3097 if test "${HAVE_TIFF}" = "yes"; then
3098 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3100 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3101 if test "${with_tiff}" != "no"; then
3102 AC_CHECK_HEADER(tiffio.h,
3104 # At least one tiff package requires the jpeg library.
3105 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3106 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3109 if test "${HAVE_TIFF}" = "yes"; then
3110 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3111 dnl FIXME -lz -lm, as per libpng?
3117 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
3118 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3121 if test "${opsys}" = "mingw32"; then
3122 if test "${with_gif}" != "no"; then
3123 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3125 if test "${HAVE_GIF}" = "yes"; then
3126 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3128 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3129 || test "${HAVE_W32}" = "yes"; then
3130 AC_CHECK_HEADER(gif_lib.h,
3131 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3132 # Earlier versions can crash Emacs, but version 5.0 removes EGifPutExtensionLast.
3133 [AC_CHECK_LIB(gif, GifMakeMapObject, HAVE_GIF=yes,
3134 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])])
3136 if test "$HAVE_GIF" = yes; then
3138 elif test "$HAVE_GIF" = maybe; then
3139 # If gif_lib.h but no libgif, try libungif.
3140 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3141 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3144 if test "${HAVE_GIF}" = "yes"; then
3145 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3150 dnl Check for required libraries.
3151 if test "${HAVE_X11}" = "yes"; then
3154 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3155 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3156 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3157 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3158 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3159 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3160 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3161 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3162 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3163 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3165 if test "X${MISSING}" != X; then
3166 AC_MSG_ERROR([The following required libraries were not found:
3168 Maybe some development libraries/packages are missing?
3169 If you don't want to link with them give
3171 as options to configure])
3175 ### Use -lgpm if available, unless `--with-gpm=no'.
3178 if test "${with_gpm}" != "no"; then
3179 AC_CHECK_HEADER(gpm.h,
3180 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3182 if test "${HAVE_GPM}" = "yes"; then
3183 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3189 dnl Check for malloc/malloc.h on darwin
3190 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3193 ### Use NeXTstep API to implement GUI.
3194 if test "${HAVE_NS}" = "yes"; then
3195 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
3196 if test "${NS_IMPL_COCOA}" = "yes"; then
3197 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
3199 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3200 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3201 # See also .m.o rule in Makefile.in */
3202 # FIXME: are all these flags really needed? Document here why. */
3203 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3204 ## Extra CFLAGS applied to src/*.m files.
3205 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3210 ### Use session management (-lSM -lICE) if available
3213 if test "${HAVE_X11}" = "yes"; then
3214 AC_CHECK_HEADER(X11/SM/SMlib.h,
3215 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3217 if test "${HAVE_X_SM}" = "yes"; then
3218 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3224 ### Use XRandr (-lXrandr) if available
3226 if test "${HAVE_X11}" = "yes"; then
3227 XRANDR_REQUIRED=1.2.2
3228 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3229 EMACS_CHECK_MODULES([XRANDR], [$XRANDR_MODULES])
3230 if test $HAVE_XRANDR = no; then
3231 # Test old way in case pkg-config doesn't have it (older machines).
3232 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3233 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)])
3234 if test $HAVE_XRANDR = yes; then
3235 XRANDR_LIBS=-lXrandr
3238 if test $HAVE_XRANDR = yes; then
3239 SAVE_CFLAGS="$CFLAGS"
3241 CFLAGS="$XRANDR_CFLAGS $CFLAGS"
3242 LIBS="$XRANDR_LIBS $LIBS"
3243 AC_CHECK_FUNCS(XRRGetOutputPrimary XRRGetScreenResourcesCurrent)
3244 CFLAGS="$SAVE_CFLAGS"
3247 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3250 AC_SUBST(XRANDR_CFLAGS)
3251 AC_SUBST(XRANDR_LIBS)
3253 ### Use Xinerama (-lXinerama) if available
3255 if test "${HAVE_X11}" = "yes"; then
3256 XINERAMA_REQUIRED=1.0.2
3257 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3258 EMACS_CHECK_MODULES([XINERAMA], [$XINERAMA_MODULES])
3259 if test $HAVE_XINERAMA = no; then
3260 # Test old way in case pkg-config doesn't have it (older machines).
3261 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3262 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3263 if test $HAVE_XINERAMA = yes; then
3264 XINERAMA_LIBS=-lXinerama
3267 if test $HAVE_XINERAMA = yes; then
3268 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3271 AC_SUBST(XINERAMA_CFLAGS)
3272 AC_SUBST(XINERAMA_LIBS)
3275 ### Use libxml (-lxml2) if available
3276 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3278 if test "${with_xml2}" != "no"; then
3279 ### I'm not sure what the version number should be, so I just guessed.
3280 EMACS_CHECK_MODULES([LIBXML2], [libxml-2.0 > 2.6.17])
3281 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3282 if test "${HAVE_LIBXML2}" != "yes" -a "$opsys" = "darwin"; then
3283 SAVE_CPPFLAGS="$CPPFLAGS"
3284 CPPFLAGS="$CPPFLAGS -I$xcsdkdir/usr/include/libxml2"
3285 AC_CHECK_HEADER(libxml/HTMLparser.h,
3286 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3287 [#include <libxml/HTMLparser.h>])])
3288 CPPFLAGS="$SAVE_CPPFLAGS"
3289 if test "${HAVE_LIBXML2}" = "yes"; then
3290 LIBXML2_CFLAGS="-I'$xcsdkdir/usr/include/libxml2'"
3291 LIBXML2_LIBS="-lxml2"
3294 if test "${HAVE_LIBXML2}" = "yes"; then
3295 if test "${opsys}" != "mingw32"; then
3296 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no
3301 if test "${HAVE_LIBXML2}" = "yes"; then
3302 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3309 AC_SUBST(LIBXML2_LIBS)
3310 AC_SUBST(LIBXML2_CFLAGS)
3312 # If netdb.h doesn't declare h_errno, we must declare it by hand.
3313 # On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
3314 if test "${opsys}" = "mingw32"; then
3315 emacs_cv_netdb_declares_h_errno=yes
3317 AC_CACHE_CHECK(whether netdb declares h_errno,
3318 emacs_cv_netdb_declares_h_errno,
3319 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
3320 [[return h_errno;]])],
3321 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
3322 if test $emacs_cv_netdb_declares_h_errno = yes; then
3323 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
3326 # Check for mail-locking functions in a "mail" library. Probably this should
3327 # have the same check as for liblockfile below.
3328 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
3329 if test $have_mail = yes; then
3331 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
3334 LIBS="$LIBS_MAIL $LIBS"
3335 AC_CHECK_FUNCS(touchlock)
3340 dnl Debian, at least:
3341 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
3342 if test $have_lockfile = yes; then
3343 LIBS_MAIL=-llockfile
3344 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
3346 # If we have the shared liblockfile, assume we must use it for mail
3347 # locking (e.g. Debian). If we couldn't link against liblockfile
3348 # (no liblockfile.a installed), ensure that we don't need to.
3349 dnl This works for files generally, not just executables.
3350 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3351 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
3352 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
3353 if test $ac_cv_prog_liblockfile = yes; then
3354 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3355 This probably means that movemail could lose mail.
3356 There may be a `development' package to install containing liblockfile.])
3359 AC_CHECK_HEADERS_ONCE(maillock.h)
3362 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3363 ## interlock access to the mail spool. The alternative is a lock file named
3364 ## /usr/spool/mail/$USER.lock.
3367 aix4-2) mail_lock="lockf" ;;
3369 gnu|freebsd|dragonfly|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
3371 ## On GNU/Linux systems, both methods are used by various mail programs.
3372 ## I assume most people are using newer mailers that have heard of flock.
3373 ## Change this if you need to.
3374 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
3375 ## configure gets the right answers, and that means *NOT* using flock.
3376 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3377 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
3378 ## Debian maintainer hasn't provided a clean fix for Emacs.
3379 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
3380 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3381 ## correct logic. -- fx
3382 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3383 ## liblockfile is a Free Software replacement for libmail, used on
3384 ## Debian systems and elsewhere. -rfr.
3387 if test $have_mail = yes || test $have_lockfile = yes; then
3388 test $ac_cv_header_maillock_h = yes && mail_lock=no
3393 mail_lock="none-needed" ;;
3397 case "$mail_lock" in
3398 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3400 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3404 *) BLESSMAIL_TARGET="need-blessmail" ;;
3406 AC_SUBST(BLESSMAIL_TARGET)
3409 LIBS="$LIB_MATH $LIBS"
3410 AC_CHECK_FUNCS(accept4 gethostname \
3411 getrusage get_current_dir_name \
3412 lrand48 random rint \
3413 select getpagesize setlocale \
3414 getrlimit setrlimit shutdown getaddrinfo \
3415 strsignal setitimer \
3416 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
3417 gai_strerror getline getdelim sync \
3418 getpwent endpwent getgrent endgrent \
3419 cfmakeraw cfsetspeed copysign __executable_start log2)
3422 dnl No need to check for aligned_alloc and posix_memalign if using
3423 dnl gmalloc.o, as it supplies them. Don't use these functions on
3424 dnl Darwin as they are incompatible with unexmacosx.c.
3425 if test -z "$GMALLOC_OBJ" && test "$opsys" != darwin; then
3426 AC_CHECK_FUNCS([aligned_alloc posix_memalign], [break])
3429 dnl Cannot use AC_CHECK_FUNCS
3430 AC_CACHE_CHECK([for __builtin_unwind_init],
3431 emacs_cv_func___builtin_unwind_init,
3432 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3433 emacs_cv_func___builtin_unwind_init=yes,
3434 emacs_cv_func___builtin_unwind_init=no)])
3435 if test $emacs_cv_func___builtin_unwind_init = yes; then
3436 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3437 [Define to 1 if you have the `__builtin_unwind_init' function.])
3440 AC_CHECK_HEADERS_ONCE(sys/un.h)
3445 AC_CHECK_FUNCS(grantpt)
3447 # PTY-related GNU extensions.
3448 AC_CHECK_FUNCS(getpt posix_openpt)
3450 # Check this now, so that we will NOT find the above functions in ncurses.
3451 # That is because we have not set up to link ncurses in lib-src.
3452 # It's better to believe a function is not available
3453 # than to expect to find it in ncurses.
3454 # Also we need tputs and friends to be able to build at all.
3455 AC_MSG_CHECKING([for library containing tputs])
3456 # Run a test program that contains a call to tputs, a call that is
3457 # never executed. This tests whether a pre-'main' dynamic linker
3458 # works with the library. It's too much trouble to actually call
3459 # tputs in the test program, due to portability hassles. When
3460 # cross-compiling, assume the test program will run if it links.
3461 AC_DEFUN([tputs_link_source], [
3463 [[extern void tputs (const char *, int, int (*)(int));
3464 int main (int argc, char **argv)
3467 tputs (argv[0], 0, 0);
3471 if test "${opsys}" = "mingw32"; then
3474 # Maybe curses should be tried earlier?
3475 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3476 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3478 if test -z "$tputs_library"; then
3482 LIBS_TERMCAP=-l$tputs_library
3484 LIBS="$LIBS_TERMCAP $LIBS"
3486 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3487 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3489 if test "X$msg" != Xno; then
3494 AC_MSG_RESULT([$msg])
3495 if test "X$msg" = Xno; then
3496 AC_MSG_ERROR([The required function `tputs' was not found in any library.
3497 The following libraries were tried (in order):
3498 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3499 Please try installing whichever of these libraries is most appropriate
3500 for your system, together with its header files.
3501 For example, a libncurses-dev(el) or similar package.])
3504 ## Use termcap instead of terminfo?
3505 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3507 ## FIXME? In the cases below where we unconditionally set
3508 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3509 ## if that was found above to have tputs.
3510 ## Should we use the gnu* logic everywhere?
3512 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3513 ## The ncurses library has been moved out of the System framework in
3514 ## Mac OS X 10.2. So if configure detects it, set the command-line
3515 ## option to use it.
3516 darwin) LIBS_TERMCAP="-lncurses" ;;
3518 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3521 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3522 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3523 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3524 [[#if __FreeBSD_version < 400000
3527 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3529 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3531 if test $emacs_cv_freebsd_terminfo = yes; then
3532 LIBS_TERMCAP="-lncurses"
3535 LIBS_TERMCAP="-ltermcap"
3545 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3547 LIBS_TERMCAP="-ltermcap"
3551 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
3553 ## hpux: Make sure we get select from libc rather than from libcurses
3554 ## because libcurses on HPUX 10.10 has a broken version of select.
3555 ## We used to use -lc -lcurses, but this may be cleaner.
3556 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3557 # set that way, now it uses the default). Isn't this a contradiction?
3558 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3562 TERMCAP_OBJ=tparam.o
3563 if test $TERMINFO = yes; then
3564 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3565 TERMCAP_OBJ=terminfo.o
3567 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
3568 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
3570 AC_SUBST(LIBS_TERMCAP)
3571 AC_SUBST(TERMCAP_OBJ)
3574 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3575 # On Darwin, res_init appears not to be useful: see bug#562 and
3576 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3579 if test $opsys != darwin; then
3581 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3582 #include <arpa/nameser.h>
3583 #include <resolv.h>]],
3584 [[return res_init();]])],
3585 have_res_init=yes, have_res_init=no)
3586 if test "$have_res_init" = no; then
3588 LIBS="$LIBS -lresolv"
3589 AC_MSG_CHECKING(for res_init with -lresolv)
3590 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3591 #include <arpa/nameser.h>
3592 #include <resolv.h>]],
3593 [[return res_init();]])],
3594 have_res_init=yes, have_res_init=no)
3595 AC_MSG_RESULT($have_res_init)
3596 if test "$have_res_init" = yes ; then
3602 if test "$have_res_init" = yes; then
3603 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3607 # Do we need the Hesiod library to provide the support routines?
3608 dnl FIXME? Should we be skipping this on Darwin too?
3610 if test "$with_hesiod" != no ; then
3611 # Don't set $LIBS here -- see comments above. FIXME which comments?
3612 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3613 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3614 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3615 if test "$resolv" = yes ; then
3620 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3621 hesiod=yes, :, $RESOLVLIB)])
3623 if test x"$hesiod" = xyes; then
3629 # Do we need libresolv (due to res_init or Hesiod)?
3630 if test "$resolv" = yes && test $opsys != darwin; then
3637 # These tell us which Kerberos-related libraries to use.
3644 if test "${with_kerberos}" != no; then
3646 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3647 if test $have_com_err = yes; then
3648 COM_ERRLIB=-lcom_err
3649 LIBS="$COM_ERRLIB $LIBS"
3651 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3652 if test $have_crypto = yes; then
3654 LIBS="$CRYPTOLIB $LIBS"
3656 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3657 if test $have_k5crypto = yes; then
3658 CRYPTOLIB=-lk5crypto
3659 LIBS="$CRYPTOLIB $LIBS"
3661 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3662 if test $have_krb5=yes; then
3664 LIBS="$KRB5LIB $LIBS"
3666 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3667 if test "${with_kerberos5}" = no; then
3668 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3669 if test $have_des425 = yes; then
3671 LIBS="$DESLIB $LIBS"
3673 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3674 if test $have_des = yes; then
3676 LIBS="$DESLIB $LIBS"
3679 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3680 if test $have_krb4 = yes; then
3682 LIBS="$KRB4LIB $LIBS"
3684 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3685 if test $have_krb = yes; then
3687 LIBS="$KRB4LIB $LIBS"
3692 if test "${with_kerberos5}" != no; then
3693 AC_CHECK_HEADERS(krb5.h,
3694 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3695 [#include <krb5.h>])])
3697 AC_CHECK_HEADERS(krb.h,,
3698 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3699 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3701 AC_CHECK_HEADERS(com_err.h)
3705 AC_SUBST(COM_ERRLIB)
3711 AC_CHECK_HEADERS(valgrind/valgrind.h)
3713 AC_CHECK_FUNCS_ONCE(tzset)
3714 AC_MSG_CHECKING(whether localtime caches TZ)
3715 AC_CACHE_VAL(emacs_cv_localtime_cache,
3716 [if test x$ac_cv_func_tzset = xyes; then
3717 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3718 char TZ_GMT0[] = "TZ=GMT0";
3719 char TZ_PST8[] = "TZ=PST8";
3722 time_t now = time ((time_t *) 0);
3723 int hour_GMT0, hour_unset;
3724 if (putenv (TZ_GMT0) != 0)
3726 hour_GMT0 = localtime (&now)->tm_hour;
3728 hour_unset = localtime (&now)->tm_hour;
3729 if (putenv (TZ_PST8) != 0)
3731 if (localtime (&now)->tm_hour == hour_GMT0)
3734 if (localtime (&now)->tm_hour != hour_unset)
3737 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3738 [# If we have tzset, assume the worst when cross-compiling.
3739 emacs_cv_localtime_cache=yes])
3741 # If we lack tzset, report that localtime does not cache TZ,
3742 # since we can't invalidate the cache if we don't have tzset.
3743 emacs_cv_localtime_cache=no
3745 AC_MSG_RESULT($emacs_cv_localtime_cache)
3746 if test $emacs_cv_localtime_cache = yes; then
3747 AC_DEFINE(LOCALTIME_CACHE, 1,
3748 [Define to 1 if localtime caches TZ.])
3752 AC_CHECK_FUNC(socket, , ok_so_far=no)
3753 if test $ok_so_far = yes; then
3754 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3756 if test $ok_so_far = yes; then
3757 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3759 if test $ok_so_far = yes; then
3760 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3761 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3762 [Define to 1 if you have inet sockets.])
3765 dnl Check for a Solaris 2.4 vfork bug that Autoconf misses (through 2.69).
3766 dnl This can be removed once we assume Autoconf 2.70.
3768 *-solaris2.4 | *-solaris2.4.*)
3769 dnl Disable the Autoconf-generated vfork test.
3770 : ${ac_cv_func_vfork_works=no};;
3775 AC_CHECK_FUNCS(snprintf)
3777 dnl Check for glib. This differs from other library checks in that
3778 dnl Emacs need not link to glib unless some other library is already
3779 dnl linking to glib. Although glib provides no facilities that Emacs
3780 dnl needs for its own purposes, when glib is present Emacs needs to
3781 dnl use primitives like g_main_context_query to avoid clashing with
3782 dnl glib at a low level.
3784 dnl Check this late, since it depends on $GTK_CFLAGS etc.
3788 CFLAGS="$CFLAGS $GTK_CFLAGS $RSVG_CFLAGS $DBUS_CFLAGS $SETTINGS_CFLAGS"
3789 LIBS="$LIBS $GTK_LIBS $RSVG_LIBS $DBUS_LIBS $SETTINGS_LIBS"
3790 CFLAGS="$CFLAGS $GFILENOTIFY_CFLAGS"
3791 LIBS="$LIBS $GFILENOTIFY_LIBS"
3792 AC_MSG_CHECKING([whether GLib is linked in])
3793 AC_LINK_IFELSE([AC_LANG_PROGRAM(
3796 [[g_print ("Hello world");]])],
3799 AC_MSG_RESULT([$links_glib])
3800 if test "${links_glib}" = "yes"; then
3801 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
3802 if test "$HAVE_NS" = no;then
3810 dnl Adapted from Haible's version.
3811 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3812 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3813 [[char* cs = nl_langinfo(CODESET);]])],
3814 emacs_cv_langinfo_codeset=yes,
3815 emacs_cv_langinfo_codeset=no)
3817 if test $emacs_cv_langinfo_codeset = yes; then
3818 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3819 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3824 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3825 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3826 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3827 if test "$emacs_cv_c_restrict_arr" = yes; then
3828 AC_DEFINE(__restrict_arr, __restrict,
3829 [Define to compiler's equivalent of C99 restrict keyword in array
3830 declarations. Define as empty for no equivalent.])
3833 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3834 dnl how the tty code is related to POSIX and/or other versions of termios.
3835 dnl The following looks like a useful start.
3837 dnl AC_SYS_POSIX_TERMIOS
3838 dnl if test $ac_cv_sys_posix_termios = yes; then
3839 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3840 dnl and macros for terminal control.])
3841 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3844 dnl Turned on June 1996 supposing nobody will mind it.
3845 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
3846 if test "${opsys}" != "mingw32"; then
3847 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3848 in the full name stands for the login id.])
3851 dnl Everybody supports this, except MS.
3852 dnl Seems like the kind of thing we should be testing for, though.
3853 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3854 if test "${opsys}" != "mingw32"; then
3855 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3858 dnl Everybody supports this, except MS-DOS.
3859 dnl Seems like the kind of thing we should be testing for, though.
3860 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3861 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3862 4.2-compatible sockets.])
3864 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3866 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
3867 a null file, or a data sink.])
3868 if test "${opsys}" = "mingw32"; then
3869 AC_DEFINE(NULL_DEVICE, ["NUL:"])
3871 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
3874 if test "${opsys}" = "mingw32"; then
3879 AC_DEFINE_UNQUOTED(SEPCHAR, ['$SEPCHAR'], [Character that separates PATH elements.])
3880 dnl This is for MinGW, and is used in test/automated/Makefile.in.
3881 dnl The MSYS Bash has heuristics for replacing ':' with ';' when it
3882 dnl decides that a command-line argument to be passed to a MinGW program
3883 dnl is a PATH-style list of directories. But that heuristics plays it
3884 dnl safe, and only does the replacement when it is _absolutely_ sure it
3885 dnl sees a colon-separated list of file names; e.g. ":." is left alone,
3886 dnl which breaks in-tree builds. So we do this manually instead.
3887 dnl Note that we cannot rely on PATH_SEPARATOR, as that one will always
3888 dnl be computed as ':' in MSYS Bash.
3891 dnl Everybody supports this, except MS-DOS.
3892 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3894 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3897 AC_DEFINE(DIRECTORY_SEP, ['/'],
3898 [Character that separates directories in a file name.])
3900 if test "${opsys}" = "mingw32"; then
3901 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
3902 [Returns true if character is a device separator.])
3904 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
3905 [Returns true if character is a directory separator.])
3907 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
3908 [Returns true if character is any form of separator.])
3910 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
3911 [Returns true if character is a device separator.])
3913 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
3914 [Returns true if character is a directory separator.])
3916 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
3917 [Returns true if character is any form of separator.])
3920 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
3924 dnl Unfortunately without libXmu we cannot support EditRes.
3925 if test "x$ac_cv_search_XmuConvertStandardSelection" = xno; then
3926 AC_DEFINE(NO_EDITRES, 1)
3931 dnl Assar Westerlund <assar@sics.se> says this is necessary for
3932 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
3933 AC_DEFINE(NO_EDITRES, 1)
3939 irix6-5 | sol2* | unixware )
3940 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
3941 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
3942 dnl need the constant to dimension an array. So wire in the appropriate
3944 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
3948 emacs_broken_SIGIO=no
3951 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
3952 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
3953 hpux* | irix6-5 | openbsd | sol2* | unixware )
3954 emacs_broken_SIGIO=yes
3958 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
3959 dnl the way this system works, libc functions that return malloced
3960 dnl memory use the libc malloc implementation. Calling xfree or
3961 dnl xrealloc on the results of such functions results in a crash.
3963 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
3964 dnl but that does not currently work on this system.
3966 dnl It is possible to completely override the malloc implementation on
3967 dnl AIX, but that involves putting the malloc functions in a shared
3968 dnl library and setting the MALLOCTYPE environment variable to point to
3969 dnl that shared library.
3971 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
3972 dnl to avoid a crash just use the Emacs implementation for that function.
3974 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
3975 dnl of this file, so that we do not check for get_current_dir_name
3976 dnl on AIX. But that might be fragile if something else ends
3977 dnl up testing for get_current_dir_name as a dependency.
3978 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
3979 get_current_dir_name should not be used.])
3983 dnl Circumvent a bug in FreeBSD. In the following sequence of
3984 dnl writes/reads on a PTY, read(2) returns bogus data:
3986 dnl write(2) 1022 bytes
3987 dnl write(2) 954 bytes, get EAGAIN
3988 dnl read(2) 1024 bytes in process_read_output
3989 dnl read(2) 11 bytes in process_read_output
3991 dnl That is, read(2) returns more bytes than have ever been written
3992 dnl successfully. The 1033 bytes read are the 1022 bytes written
3993 dnl successfully after processing (for example with CRs added if the
3994 dnl terminal is set up that way which it is here). The same bytes will
3995 dnl be seen again in a later read(2), without the CRs.
3996 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
3997 work around an issue when reading from a PTY.])
4003 dnl FIXME Can't we test if this exists (eg /proc/$$)?
4004 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
4009 darwin | dragonfly | freebsd | netbsd | openbsd )
4010 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
4011 close a pty to make it a controlling terminal (it is already a
4012 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
4016 dnl FIXME Surely we can test for this rather than hard-code it.
4018 netbsd | openbsd) sound_device="/dev/audio" ;;
4019 *) sound_device="/dev/dsp" ;;
4023 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
4024 [Name of the default sound device.])
4027 dnl Emacs can read input using SIGIO and buffering characters itself,
4028 dnl or using CBREAK mode and making C-g cause SIGINT.
4029 dnl The choice is controlled by the variable interrupt_input.
4031 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
4033 dnl Emacs uses the presence of the USABLE_SIGIO macro
4034 dnl to indicate whether or not signal-driven I/O is possible. It uses
4035 dnl INTERRUPT_INPUT to decide whether to use it by default.
4037 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
4038 dnl CBREAK mode has two disadvantages
4039 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
4040 dnl I hear that in system V this problem does not exist.
4041 dnl 2) Control-G causes output to be discarded.
4042 dnl I do not know whether this can be fixed in system V.
4044 dnl Another method of doing input is planned but not implemented.
4045 dnl It would have Emacs fork off a separate process
4046 dnl to read the input and send it to the true Emacs process
4049 darwin | gnu-linux | gnu-kfreebsd )
4050 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
4055 dnl If the system's imake configuration file defines `NeedWidePrototypes'
4056 dnl as `NO', we must define NARROWPROTO manually. Such a define is
4057 dnl generated in the Makefile generated by `xmkmf'. If we don't define
4058 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
4059 dnl taking float or double parameters.
4061 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
4062 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
4063 file defines `NeedWidePrototypes' as `NO'.])
4068 dnl Used in process.c, this must be a loop, even if it only runs once.
4069 dnl (Except on SGI; see below. Take that, clarity and consistency!)
4070 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
4071 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
4072 dnl trying suffixes 0-16.
4073 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
4074 first PTY, if PTYs are supported.])
4075 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
4076 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
4077 end of a PTY, if non-standard.])
4078 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
4079 end of a PTY, if non-standard.])
4083 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4084 dnl You allocate a pty by opening /dev/ptc to get the master side.
4085 dnl To get the name of the slave side, you just ttyname() the master side.
4086 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4087 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4091 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4092 dnl multi-line AC_DEFINEs are hard. :(
4093 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)])
4094 AC_DEFINE(PTY_NAME_SPRINTF, [])
4095 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4098 dnl FIXME? Maybe use same as freebsd - see bug#12040.
4100 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4101 dnl Not used, because PTY_ITERATION is defined.
4102 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4103 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
4104 dnl But we don't have to block SIGCHLD because it is blocked in the
4105 dnl implementation of grantpt.
4106 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (false)])
4107 AC_DEFINE(PTY_NAME_SPRINTF, [])
4108 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4112 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4115 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd )
4117 if test "x$ac_cv_func_grantpt" = xyes; then
4118 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4119 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4120 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4121 dnl to prevent sigchld_handler from intercepting the child's death.
4122 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); }])
4123 dnl if HAVE_POSIX_OPENPT
4124 if test "x$ac_cv_func_posix_openpt" = xyes; then
4125 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (false)])
4126 AC_DEFINE(PTY_NAME_SPRINTF, [])
4128 elif test "x$ac_cv_func_getpt" = xyes; then
4129 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4130 AC_DEFINE(PTY_NAME_SPRINTF, [])
4132 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4135 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4140 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4141 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4142 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4146 dnl It looks like this cannot be right, because it is not a loop.
4147 dnl However, process.c actually does this:
4153 dnl which presumably makes it OK, since irix == sgi (?).
4154 dnl FIXME it seems like this special treatment is unnecessary?
4155 dnl Why can't irix use a single-trip loop like eg cygwin?
4156 AC_DEFINE(PTY_ITERATION, [])
4157 dnl Not used, because PTY_ITERATION is defined.
4158 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
4159 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); }])
4160 dnl No need to get the pty name at all.
4161 AC_DEFINE(PTY_NAME_SPRINTF, [])
4162 dnl No need to use sprintf to get the tty name--we get that from _getpty.
4163 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4167 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
4168 dnl from intercepting that death. If any child but grantpt's should die
4169 dnl within, it should be caught after sigrelse(2).
4170 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); }])
4174 dnl Comments are as per sol2*.
4175 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); }])
4182 dnl This change means that we don't loop through allocate_pty too
4183 dnl many times in the (rare) event of a failure.
4184 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4185 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4186 dnl Push various streams modules onto a PTY channel. Used in process.c.
4187 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.])
4192 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4193 "typing" a signal character on the pty.])
4196 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4197 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
4198 aix4-2 | cygwin | gnu | irix6-5 | dragonfly | freebsd | netbsd | openbsd | darwin )
4199 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4202 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4203 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4204 gnu-linux | gnu-kfreebsd )
4206 AC_MSG_CHECKING([for signals via characters])
4207 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4208 #include <linux/version.h>
4209 #if LINUX_VERSION_CODE < 0x20400
4210 # error "Linux version too old"
4212 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4214 AC_MSG_RESULT([$emacs_signals_via_chars])
4215 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4220 AH_TEMPLATE(TAB3, [Undocumented.])
4223 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4225 gnu | dragonfly | freebsd | netbsd | openbsd )
4226 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4227 AC_DEFINE(TAB3, OXTABS)
4230 gnu-linux | gnu-kfreebsd )
4231 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4235 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4236 [do { extern void *__libc_ia64_register_backing_store_base; __builtin_ia64_flushrs (); mark_memory (__libc_ia64_register_backing_store_base, __builtin_ia64_bsp ());} while (false)],
4237 [Mark a secondary stack, like the register stack on the ia64.]), [])
4241 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4242 run_time_remap; for HPUX.])
4247 dnl This won't be used automatically yet. We also need to know, at least,
4248 dnl that the stack is continuous.
4249 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4250 registers relevant for conservative garbage collection in the jmp_buf.])
4254 dnl Not all the architectures are tested, but there are Debian packages
4255 dnl for SCM and/or Guile on them, so the technique must work. See also
4256 dnl comments in alloc.c concerning setjmp and gcc.
4257 dnl Fixme: it's probably safe to just use the GCC conditional below.
4258 gnu-linux | gnu-kfreebsd )
4259 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4260 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4261 || defined __alpha__ || defined __mips__ || defined __s390__ \
4262 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4263 || defined __ia64__ || defined __sh__
4266 # error "setjmp not known to work on this arch"
4268 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4273 if test x$GCC = xyes; then
4274 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4275 AC_DEFINE(GC_SETJMP_WORKS, 1)
4278 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
4279 dragonfly | freebsd | netbsd | openbsd | irix6-5 | sol2* )
4280 AC_DEFINE(GC_SETJMP_WORKS, 1)
4285 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4286 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4289 [[#include <setjmp.h>
4291 # define _longjmp longjmp
4296 _longjmp (j, 1);]])],
4297 [emacs_cv_func__setjmp=yes],
4298 [emacs_cv_func__setjmp=no])])
4299 if test $emacs_cv_func__setjmp = yes; then
4300 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4302 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4305 [[#include <setjmp.h>
4308 if (! sigsetjmp (j, 1))
4309 siglongjmp (j, 1);]])],
4310 [emacs_cv_func_sigsetjmp=yes],
4311 [emacs_cv_func_sigsetjmp=no])])
4312 if test $emacs_cv_func_sigsetjmp = yes; then
4313 AC_DEFINE([HAVE_SIGSETJMP], 1,
4314 [Define to 1 if sigsetjmp and siglongjmp work.
4315 The value of this symbol is irrelevant if HAVE__SETJMP is defined.])
4321 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4322 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4323 dnl and this is all we need.
4324 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4331 dnl Used in xfaces.c.
4332 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4333 some systems, where it requires time.h.])
4338 dnl Define symbols to identify the version of Unix this is.
4339 dnl Define all the symbols that apply correctly.
4340 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4341 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4342 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4343 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4348 dnl This symbol should be defined on AIX Version 3 ???????
4349 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4351 # error "_AIX not defined"
4353 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4357 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4361 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
4362 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4363 dnl distinguish OS X from pure Darwin.
4364 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4367 gnu-linux | gnu-kfreebsd )
4369 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4374 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4379 AC_DEFINE(USG5_4, [])
4380 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4384 AC_DEFINE(DOS_NT, [])
4385 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4386 if test "x$ac_enable_checking" != "x" ; then
4387 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4393 AC_DEFINE(USG5_4, [])
4394 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4399 AC_DEFINE(USG5_4, [])
4403 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4406 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4407 emacs_cv_usable_FIONREAD=no
4411 emacs_cv_usable_FIONREAD=yes
4416 [AC_LANG_PROGRAM([[#include <sys/types.h>
4417 #include <sys/ioctl.h>
4419 # include <sys/filio.h>
4422 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4423 [emacs_cv_usable_FIONREAD=yes],
4424 [emacs_cv_usable_FIONREAD=no])
4427 if test $emacs_cv_usable_FIONREAD = yes; then
4428 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4430 if test $emacs_broken_SIGIO = no; then
4431 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4433 [AC_LANG_PROGRAM([[#include <fcntl.h>
4436 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4437 [emacs_cv_usable_SIGIO=yes],
4438 [emacs_cv_usable_SIGIO=no])],
4439 [emacs_cv_usable_SIGIO=yes],
4440 [emacs_cv_usable_SIGIO=no])
4441 if test $emacs_cv_usable_SIGIO = yes; then
4442 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4449 dnl Emacs supplies its own malloc, but glib calls posix_memalign,
4450 dnl and on Cygwin prior to version 1.7.24 that becomes the
4451 dnl Cygwin-supplied posix_memalign. As malloc is not the Cygwin
4452 dnl malloc, the Cygwin posix_memalign always returns ENOSYS. A
4453 dnl workaround is to set G_SLICE=always-malloc. This is no longer
4454 dnl needed starting with cygwin-1.7.24, and it is no longer
4455 dnl effective starting with glib-2.36. */
4457 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
4458 G_SLICE environment variable to "always-malloc" at startup.])
4462 dnl It works to open the pty's tty in the parent (Emacs), then
4463 dnl close and reopen it in the child.
4464 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4465 works to open a pty's tty in the parent process, then close and
4466 reopen it in the child.])
4470 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4471 use VSUSP instead of VSWTCH.])
4475 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4480 # Set up the CFLAGS for real compilation, so we can substitute it.
4481 CFLAGS="$REAL_CFLAGS"
4482 CPPFLAGS="$REAL_CPPFLAGS"
4485 ## Hack to detect a buggy GCC version.
4486 if test "x$GCC" = xyes \
4487 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4488 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4489 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4490 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4493 version=$PACKAGE_VERSION
4495 copyright="Copyright (C) 2014 Free Software Foundation, Inc."
4496 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4497 [Short copyright string for this version of Emacs.])
4500 ### Specify what sort of things we'll be editing into Makefile and config.h.
4501 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4503 AC_SUBST(configuration)
4508 AC_SUBST(exec_prefix)
4511 AC_SUBST(sharedstatedir)
4512 AC_SUBST(libexecdir)
4516 AC_SUBST(standardlisppath)
4517 AC_SUBST(locallisppath)
4519 AC_SUBST(x_default_search_path)
4521 AC_SUBST(archlibdir)
4526 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4527 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4528 ## end of LIBX_BASE, but nothing ever set it.
4529 AC_SUBST(LD_SWITCH_X_SITE)
4530 AC_SUBST(C_SWITCH_X_SITE)
4531 AC_SUBST(GNUSTEP_CFLAGS)
4533 ## Used in lwlib/Makefile.in.
4534 AC_SUBST(X_TOOLKIT_TYPE)
4536 AC_SUBST(ns_appbindir)
4537 AC_SUBST(ns_appresdir)
4539 AC_SUBST(GNU_OBJC_CFLAGS)
4540 AC_SUBST(OTHER_FILES)
4542 if test -n "${term_header}"; then
4543 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4544 [Define to the header for the built-in window system.])
4547 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4548 [Define to the canonical Emacs configuration name.])
4549 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4550 [Define to the options passed to configure.])
4551 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4552 define this to include extra configuration information.])
4556 AC_DEFINE(config_opsysfile, <ms-w32.h>, [])
4563 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4564 AC_DEFINE(HAVE_X_WINDOWS, 1,
4565 [Define to 1 if you want to use the X window system.])
4567 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4569 if test "$HAVE_XFT" = "yes"; then
4570 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4571 elif test "$HAVE_FREETYPE" = "yes"; then
4572 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4582 if test "${USE_X_TOOLKIT}" != "none" ; then
4584 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4585 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4586 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4587 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4588 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4592 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4593 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4597 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4598 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4599 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4603 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4604 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4607 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4610 AC_SUBST(WIDGET_OBJ)
4613 case "$USE_X_TOOLKIT" in
4614 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4615 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4616 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4618 AC_SUBST(TOOLKIT_LIBW)
4620 if test "${opsys}" != "mingw32"; then
4621 if test "$USE_X_TOOLKIT" = "none"; then
4622 LIBXT_OTHER="\$(LIBXSM)"
4624 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4627 AC_SUBST(LIBXT_OTHER)
4629 if test "${HAVE_X11}" = "yes" ; then
4630 AC_DEFINE(HAVE_X11, 1,
4631 [Define to 1 if you want to use version 11 of X windows.])
4632 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4636 AC_SUBST(LIBX_OTHER)
4638 if test "$HAVE_GTK" = yes || test "$HAVE_X11" != yes; then
4640 elif test "$USE_X_TOOLKIT" = none; then
4641 LIBXMENU='$(oldXMenudir)/libXMenu11.a'
4643 LIBXMENU='$(lwlibdir)/liblw.a'
4647 if test "${GNU_MALLOC}" = "yes" ; then
4648 AC_DEFINE(GNU_MALLOC, 1,
4649 [Define to 1 if you want to use the GNU memory allocator.])
4653 if test "${REL_ALLOC}" = "yes" ; then
4654 AC_DEFINE(REL_ALLOC, 1,
4655 [Define REL_ALLOC if you want to use the relocating allocator for
4658 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4660 AC_SUBST(RALLOC_OBJ)
4662 if test "$opsys" = "cygwin"; then
4663 CYGWIN_OBJ="sheap.o cygw32.o"
4664 ## Cygwin differs because of its unexec().
4666 POST_ALLOC_OBJ=lastfile.o
4667 elif test "$opsys" = "mingw32"; then
4670 POST_ALLOC_OBJ=lastfile.o
4673 PRE_ALLOC_OBJ=lastfile.o
4676 AC_SUBST(CYGWIN_OBJ)
4677 AC_SUBST(PRE_ALLOC_OBJ)
4678 AC_SUBST(POST_ALLOC_OBJ)
4680 dnl Call this 'FORTIFY_SOUR' so that it sorts before the 'FORTIFY_SOURCE'
4681 dnl verbatim defined above. The tricky name is apropos, as this hack
4682 dnl makes Fortify go sour!
4683 AH_VERBATIM([FORTIFY_SOUR],
4684 [/* Without the following workaround, Emacs runs slowly on OS X 10.8.
4685 The workaround disables some useful run-time checking, so it
4686 should be conditional to the platforms with the performance bug.
4687 Perhaps Apple will fix this some day; also see m4/extern-inline.m4. */
4688 #if defined __APPLE__ && defined __GNUC__
4689 # ifndef _DONT_USE_CTYPE_INLINE_
4690 # define _DONT_USE_CTYPE_INLINE_
4692 # ifndef _FORTIFY_SOURCE
4693 # define _FORTIFY_SOURCE 0
4698 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4699 # it temporarily reverts them to their pre-pkg-config values,
4700 # because gnulib needs to work with both src (which uses the
4701 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4702 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4703 # and it therefore needs to run in an environment where LIBS does not
4704 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4705 # for some package unrelated to lib-src.
4708 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4709 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4710 gl_ASSERT_NO_GNULIB_POSIXCHECK
4711 gl_ASSERT_NO_GNULIB_TESTS
4716 if test "${opsys}" = "mingw32"; then
4717 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I \${abs_top_srcdir}/nt/inc"
4718 # Remove unneeded switches from the value of CC that goes to Makefiles
4719 CC=`echo $CC | sed -e "s,$GCC_TEST_OPTIONS,,"`
4723 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4726 ## The -headerpad option tells ld (see man page) to leave room at the
4727 ## end of the header for adding load commands. Needed for dumping.
4728 ## 0x690 is the total size of 30 segment load commands (at 56
4729 ## each); under Cocoa 31 commands are required.
4730 if test "$HAVE_NS" = "yes"; then
4731 libs_nsgui="-framework AppKit"
4732 if test "$NS_IMPL_COCOA" = "yes"; then
4733 libs_nsgui="$libs_nsgui -framework IOKit"
4740 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4742 ## This is here because src/Makefile.in did some extra fiddling around
4743 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
4744 ## LD_SWITCH_SYSTEM_TEMACS instead,
4745 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4746 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4749 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4750 ## find X at run-time.
4751 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4752 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4753 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4754 ## had different values in configure (in ac_link) and src/Makefile.in.
4755 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4756 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4759 ## MinGW64 does not prepend an underscore to symbols, so we must
4760 ## pass a different -entry switch to linker. FIXME: It is better
4761 ## to make the entry points the same by changing unexw32.c.
4762 case "$canonical" in
4763 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4764 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4768 openbsd) LD_SWITCH_SYSTEM_TEMACS='-nopie' ;;
4770 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4773 if test x$ac_enable_profiling != x ; then
4775 *freebsd | gnu-linux) ;;
4776 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
4780 LD_SWITCH_SYSTEM_TEMACS="$LDFLAGS_NOCOMBRELOC $LD_SWITCH_SYSTEM_TEMACS"
4782 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4784 ## MinGW-specific post-link processing of temacs.
4785 TEMACS_POST_LINK=":"
4788 if test "${opsys}" = "mingw32"; then
4789 TEMACS_POST_LINK="\$(MINGW_TEMACS_POST_LINK)"
4790 ADDSECTION="../nt/addsection\$(EXEEXT)"
4791 ## Preload heap size of temacs.exe in MB.
4792 case "$canonical" in
4793 x86_64-*-*) EMACS_HEAPSIZE=42 ;;
4794 *) EMACS_HEAPSIZE=27 ;;
4798 AC_SUBST(ADDSECTION)
4799 AC_SUBST(TEMACS_POST_LINK)
4800 AC_SUBST(EMACS_HEAPSIZE)
4802 ## Common for all window systems
4803 if test "$window_system" != "none"; then
4804 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4805 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4808 AC_SUBST(WINDOW_SYSTEM_OBJ)
4810 AH_TOP([/* GNU Emacs site configuration template file.
4812 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2014
4813 Free Software Foundation, Inc.
4815 This file is part of GNU Emacs.
4817 GNU Emacs is free software: you can redistribute it and/or modify
4818 it under the terms of the GNU General Public License as published by
4819 the Free Software Foundation, either version 3 of the License, or
4820 (at your option) any later version.
4822 GNU Emacs is distributed in the hope that it will be useful,
4823 but WITHOUT ANY WARRANTY; without even the implied warranty of
4824 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4825 GNU General Public License for more details.
4827 You should have received a copy of the GNU General Public License
4828 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4831 /* No code in Emacs #includes config.h twice, but some bits of code
4832 intended to work with other packages as well (like gmalloc.c)
4833 think they can include it as many times as they like. */
4834 #ifndef EMACS_CONFIG_H
4835 #define EMACS_CONFIG_H
4838 AH_BOTTOM([#include <conf_post.h>
4840 #endif /* EMACS_CONFIG_H */
4849 #### Report on what we decided to do.
4850 #### Report GTK as a toolkit, even if it doesn't use Xt.
4851 #### It makes printing result more understandable as using GTK sets
4852 #### toolkit_scroll_bars to yes by default.
4853 if test "${HAVE_GTK}" = "yes"; then
4854 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
4857 if test $USE_ACL -ne 0; then
4858 ACL_SUMMARY="yes $LIB_ACL"
4864 Configured for \`${canonical}'.
4866 Where should the build process find the source code? ${srcdir}
4867 What compiler should emacs be built with? ${CC} ${CFLAGS}
4868 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4869 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4870 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4871 What window system should Emacs use? ${window_system}
4872 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4874 if test -n "${x_includes}"; then
4875 echo " Where do we find X Windows header files? ${x_includes}"
4877 echo " Where do we find X Windows header files? Standard dirs"
4879 if test -n "${x_libraries}"; then
4880 echo " Where do we find X Windows libraries? ${x_libraries}"
4882 echo " Where do we find X Windows libraries? Standard dirs"
4886 emacs_config_features=
4887 for opt in XAW3D XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS \
4888 GCONF GSETTINGS NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT \
4892 NOTIFY|ACL) eval val=\${${opt}_SUMMARY} ;;
4893 *) eval val=\${HAVE_$opt} ;;
4895 test x"$val" = xno && continue
4896 AS_VAR_APPEND([emacs_config_features], ["$optsep$opt"])
4899 AC_DEFINE_UNQUOTED(EMACS_CONFIG_FEATURES, "${emacs_config_features}",
4900 [Summary of some of the main features enabled by configure.])
4902 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4903 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4904 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4905 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4906 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4907 echo " Does Emacs use a png library? ${HAVE_PNG} $LIBPNG"
4908 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4909 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4911 echo " Does Emacs support sound? ${HAVE_SOUND}"
4913 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4914 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4915 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4916 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4917 echo " Does Emacs use a file notification library? ${NOTIFY_SUMMARY}"
4918 echo " Does Emacs use access control lists? ${ACL_SUMMARY}"
4919 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4920 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4921 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4923 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4924 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4925 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
4926 echo " Does Emacs use -lxft? ${HAVE_XFT}"
4927 echo " Does Emacs directly use zlib? ${HAVE_ZLIB}"
4929 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
4932 if test -n "${EMACSDATA}"; then
4933 echo " Environment variable EMACSDATA set to: $EMACSDATA"
4935 if test -n "${EMACSDOC}"; then
4936 echo " Environment variable EMACSDOC set to: $EMACSDOC"
4941 if test "$HAVE_NS" = "yes"; then
4943 echo "You must run \"${MAKE-make} install\" in order to test the built application.
4944 The installed application will go to nextstep/Emacs.app and can be
4945 run or moved from there."
4946 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
4947 echo "The application will be fully self-contained."
4949 echo "The lisp resources for the application will be installed under ${prefix}.
4950 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
4951 to run if these resources are not installed."
4956 if test "${opsys}" = "cygwin"; then
4958 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
4964 # Remove any trailing slashes in these variables.
4965 [test "${prefix}" != NONE &&
4966 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
4967 test "${exec_prefix}" != NONE &&
4968 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
4970 if test "$HAVE_NS" = "yes"; then
4971 if test "$NS_IMPL_GNUSTEP" = yes; then
4972 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
4973 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
4974 ns_check_file=Resources/Info-gnustep.plist
4976 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
4977 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
4978 ns_check_file=Contents/Info.plist
4980 AC_SUBST(ns_check_file)
4983 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
4984 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
4985 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
4986 dnl (else you get "no `Makefile.am' found for any configure output").
4987 dnl This will work, but you get a config.status that is not quite right
4988 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
4989 dnl That doesn't have any obvious consequences for Emacs, but on the whole
4990 dnl it seems better to just live with the duplication.
4991 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile nt/Makefile"
4993 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
4994 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
4995 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
4996 leim/Makefile nextstep/Makefile nt/Makefile])
4998 dnl test/ is not present in release tarfiles.
4999 opt_makefile=test/automated/Makefile
5001 if test -f "$srcdir/$opt_makefile.in"; then
5002 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
5003 dnl Again, it's best not to use a variable. Though you can add
5004 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
5005 AC_CONFIG_FILES([test/automated/Makefile])
5009 dnl The admin/ directory used to be excluded from tarfiles.
5010 if test -d $srcdir/admin; then
5011 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES admin/unidata/Makefile admin/grammars/Makefile"
5012 AC_CONFIG_FILES([admin/unidata/Makefile])
5013 AC_CONFIG_FILES([admin/grammars/Makefile])
5017 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
5019 AC_SUBST(SUBDIR_MAKEFILES_IN)
5021 dnl You might wonder (I did) why epaths.h is generated by running make,
5022 dnl rather than just letting configure generate it from epaths.in.
5023 dnl One reason is that the various paths are not fully expanded (see above);
5024 dnl eg gamedir=${prefix}/var/games/emacs.
5025 dnl Secondly, the GNU Coding standards require that one should be able
5026 dnl to run `make prefix=/some/where/else' and override the values set
5027 dnl by configure. This also explains the `move-if-change' test and
5028 dnl the use of force in the `epaths-force' rule in Makefile.in.
5029 AC_CONFIG_COMMANDS([src/epaths.h], [
5030 if test "${opsys}" = "mingw32"; then
5031 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
5033 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
5035 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
5037 dnl NB we have to cheat and use the ac_... version because abs_top_srcdir
5038 dnl is not yet set, sigh. Or we could use ../$srcdir/src/.gdbinit,
5040 AC_CONFIG_COMMANDS([src/.gdbinit], [
5041 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
5042 echo "source $ac_abs_top_srcdir/src/.gdbinit" > src/.gdbinit