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, 1999-2015 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/>.
27 dnl We get MINGW64 with MSYS2
28 if test "x$MSYSTEM" = "xMINGW32" -o "x$MSYSTEM" = "xMINGW64"
30 . $srcdir/nt/mingw-cfg.site
34 # srcdir is an absolute path. In this case, force the format
35 # "/c/foo/bar", to simplify later conversions to native Windows
36 # format ("c:/foo/bar")
37 srcdir=`cd "${srcdir}" && pwd -W`
38 # 'eval' pacifies strict POSIX non-MinGW shells (Bug#18612).
39 eval '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)
88 AC_CHECK_PROGS(XCRUN, [xcrun])
89 if test -n "$XCRUN"; then
90 if test -z "$MAKE"; then
91 dnl Call the variable MAKE_PROG, not MAKE, to avoid confusion with
92 dnl SET_MAKE and with the usual MAKE variable that 'make' itself uses.
93 AC_CHECK_PROG([MAKE_PROG], [make], [yes])
94 if test -z "$MAKE_PROG"; then
97 xcsdkdir=`$XCRUN --show-sdk-path 2>/dev/null`
102 dnl Fairly arbitrary, older versions might work too.
103 AM_INIT_AUTOMAKE(1.11)
105 dnl Support for --program-prefix, --program-suffix and
106 dnl --program-transform-name options
109 dnl It is important that variables on the RHS not be expanded here,
110 dnl hence the single quotes. This is per the GNU coding standards, see
111 dnl (autoconf) Installation Directory Variables
112 dnl See also epaths.h below.
113 lispdir='${datadir}/emacs/${version}/lisp'
114 standardlisppath='${lispdir}'
115 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
116 '${datadir}/emacs/site-lisp'
117 lisppath='${locallisppath}:${standardlisppath}'
118 etcdir='${datadir}/emacs/${version}/etc'
119 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
120 etcdocdir='${datadir}/emacs/${version}/etc'
121 gamedir='${localstatedir}/games/emacs'
123 dnl Special option to disable the most of other options.
125 [AS_HELP_STRING([--without-all],
126 [omit almost all features and build
127 small executable with minimal dependencies])],
128 [with_features=$withval],
131 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
132 dnl Create a new --with option that defaults to being disabled.
133 dnl NAME is the base name of the option. The shell variable with_NAME
134 dnl will be set to either the user's value (if the option is
135 dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
136 dnl option is not specified). Note that the shell variable name is
137 dnl constructed as autoconf does, by replacing non-alphanumeric
138 dnl characters with "_".
139 dnl HELP-STRING is the help text for the option.
140 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
141 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
142 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
145 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
146 dnl Create a new --with option that defaults to $with_features.
147 dnl NAME is the base name of the option. The shell variable with_NAME
148 dnl will be set either to 'no' (for a plain --without-NAME) or to
149 dnl 'yes' (if the option is not specified). Note that the shell
150 dnl variable name is constructed as autoconf does, by replacing
151 dnl non-alphanumeric characters with "_".
152 dnl HELP-STRING is the help text for the option.
153 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
154 AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
155 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=$with_features])dnl
158 OPTION_DEFAULT_ON([pop],[don't support POP mail retrieval with movemail])
159 if test "$with_pop" = yes; then
160 AC_DEFINE(MAIL_USE_POP)
162 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
164 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
165 if test "$with_kerberos" != no; then
168 AH_TEMPLATE(KERBEROS,
169 [Define to support Kerberos-authenticated POP mail retrieval.])dnl
171 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
172 if test "${with_kerberos5}" != no; then
173 if test "${with_kerberos}" = no; then
177 AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
180 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
181 dnl FIXME hesiod support may not be present, so it seems like an error
182 dnl to define, or at least use, this unconditionally.
183 if test "$with_hesiod" != no; then
184 AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
187 OPTION_DEFAULT_OFF([mmdf],[support MMDF mailboxes])
188 if test "$with_mmdf" != no; then
189 AC_DEFINE(MAIL_USE_MMDF, 1, [Define to support MMDF mailboxes in movemail.])
192 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
193 if test "$with_mail_unlink" != no; then
194 AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
197 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
198 [string giving default POP mail host])],
199 AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
201 AC_ARG_WITH([sound],[AS_HELP_STRING([--with-sound=VALUE],
202 [compile with sound support (VALUE one of: yes, alsa, oss, bsd-ossaudio, no;
203 default yes). Only for GNU/Linux, FreeBSD, NetBSD, MinGW.])],
204 [ case "${withval}" in
205 yes|no|alsa|oss|bsd-ossaudio) val=$withval ;;
206 *) AC_MSG_ERROR([`--with-sound=$withval' is invalid;
207 this option's value should be `yes', `no', `alsa', `oss', or `bsd-ossaudio'.])
212 [with_sound=$with_features])
214 dnl FIXME currently it is not the last.
215 dnl This should be the last --with option, because --with-x is
216 dnl added later on when we find the file name of X, and it's best to
217 dnl keep them together visually.
218 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
219 [use an X toolkit (KIT one of: yes or gtk, gtk2, gtk3, lucid or athena, motif, no)])],
220 [ case "${withval}" in
221 y | ye | yes ) val=gtk ;;
223 l | lu | luc | luci | lucid ) val=lucid ;;
224 a | at | ath | athe | athen | athena ) val=athena ;;
225 m | mo | mot | moti | motif ) val=motif ;;
226 g | gt | gtk ) val=gtk ;;
230 AC_MSG_ERROR([`--with-x-toolkit=$withval' is invalid;
231 this option's value should be `yes', `no', `lucid', `athena', `motif', `gtk',
232 `gtk2' or `gtk3'. `yes' and `gtk' are synonyms.
233 `athena' and `lucid' are synonyms.])
239 OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit)])
240 if test "$with_wide_int" = yes; then
241 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
244 dnl _ON results in a '--without' option in the --help output, so
245 dnl the help text should refer to "don't compile", etc.
246 with_xpm_set=${with_xpm+set}
247 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
248 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
249 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
250 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
251 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
252 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
253 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
254 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
256 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
257 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
258 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
260 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
261 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
262 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
263 OPTION_DEFAULT_OFF([ns],[use NeXTstep (Cocoa or GNUstep) windowing system])
264 OPTION_DEFAULT_OFF([w32], [use native MS Windows GUI in a Cygwin build])
266 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
267 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
268 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
269 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
270 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
271 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
272 OPTION_DEFAULT_ON([zlib],[don't compile with zlib decompression support])
274 AC_ARG_WITH([file-notification],[AS_HELP_STRING([--with-file-notification=LIB],
275 [use a file notification library (LIB one of: yes, gfile, inotify, w32, no)])],
276 [ case "${withval}" in
277 y | ye | yes ) val=yes ;;
279 g | gf | gfi | gfil | gfile ) val=gfile ;;
280 i | in | ino | inot | inoti | inotif | inotify ) val=inotify ;;
281 w | w3 | w32 ) val=w32 ;;
282 * ) AC_MSG_ERROR([`--with-file-notification=$withval' is invalid;
283 this option's value should be `yes', `no', `gfile', `inotify' or `w32'.
284 `yes' is a synonym for `w32' on MS-Windows, for `no' on Nextstep,
285 otherwise for the first of `gfile' or `inotify' that is usable.])
288 with_file_notification=$val
290 [with_file_notification=$with_features])
292 ## For the times when you want to build Emacs but don't have
293 ## a suitable makeinfo, and can live without the manuals.
294 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
295 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
297 ## Makefile.in needs the cache file name.
300 ## This is an option because I do not know if all info/man support
301 ## compressed files, nor how to test if they do so.
302 OPTION_DEFAULT_ON([compress-install],
303 [don't compress some files (.el, .info, etc.) when installing. Equivalent to:
304 make GZIP_PROG= install])
306 AC_ARG_WITH([pkg-config-prog],dnl
307 [AS_HELP_STRING([--with-pkg-config-prog=FILENAME],
308 [file name of pkg-config for finding GTK and librsvg])])
309 if test "X${with_pkg_config_prog}" != X; then
310 if test "${with_pkg_config_prog}" != yes; then
311 PKG_CONFIG="${with_pkg_config_prog}"
315 AC_ARG_WITH(gameuser,dnl
316 [AS_HELP_STRING([--with-gameuser=USER],[user for shared game score files])])
317 test "X${with_gameuser}" != X && test "${with_gameuser}" != yes \
318 && gameuser="${with_gameuser}"
319 test "X$gameuser" = X && gameuser=games
321 AC_ARG_WITH([gnustep-conf],dnl
322 [AS_HELP_STRING([--with-gnustep-conf=FILENAME],
323 [name of GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
324 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
325 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
326 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
327 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
329 AC_ARG_ENABLE(ns-self-contained,
330 [AS_HELP_STRING([--disable-ns-self-contained],
331 [disable self contained build under NeXTstep])],
332 EN_NS_SELF_CONTAINED=$enableval,
333 EN_NS_SELF_CONTAINED=yes)
335 AC_ARG_ENABLE(locallisppath,
336 [AS_HELP_STRING([--enable-locallisppath=PATH],
337 [directories Emacs should search for lisp files specific
339 if test "${enableval}" = "no"; then
341 elif test "${enableval}" != "yes"; then
342 locallisppath=${enableval}
345 AC_ARG_ENABLE(checking,
346 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
347 [enable expensive run-time checks. With LIST,
348 enable only specific categories of checks.
349 Categories are: all,yes,no.
350 Flags are: stringbytes, stringoverrun, stringfreelist,
351 xmallocoverrun, conslist, glyphs])],
352 [ac_checking_flags="${enableval}"],[])
353 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
354 for check in $ac_checking_flags
357 # these set all the flags to specific states
358 yes) ac_enable_checking=1 ;;
359 no) ac_enable_checking= ;
360 ac_gc_check_stringbytes= ;
361 ac_gc_check_string_overrun= ;
362 ac_gc_check_string_free_list= ;
363 ac_xmalloc_overrun= ;
364 ac_gc_check_cons_list= ;
366 all) ac_enable_checking=1 ;
367 ac_gc_check_stringbytes=1 ;
368 ac_gc_check_string_overrun=1 ;
369 ac_gc_check_string_free_list=1 ;
370 ac_xmalloc_overrun=1 ;
371 ac_gc_check_cons_list=1 ;
373 # these enable particular checks
374 stringbytes) ac_gc_check_stringbytes=1 ;;
375 stringoverrun) ac_gc_check_string_overrun=1 ;;
376 stringfreelist) ac_gc_check_string_free_list=1 ;;
377 xmallocoverrun) ac_xmalloc_overrun=1 ;;
378 conslist) ac_gc_check_cons_list=1 ;;
379 glyphs) ac_glyphs_debug=1 ;;
380 *) AC_MSG_ERROR(unknown check category $check) ;;
385 if test x$ac_enable_checking != x ; then
386 AC_DEFINE(ENABLE_CHECKING, 1,
387 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
389 if test x$ac_gc_check_stringbytes != x ; then
390 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
391 [Define this temporarily to hunt a bug. If defined, the size of
392 strings is redundantly recorded in sdata structures so that it can
393 be compared to the sizes recorded in Lisp strings.])
395 if test x$ac_gc_check_string_overrun != x ; then
396 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
397 [Define this to check for short string overrun.])
399 if test x$ac_gc_check_string_free_list != x ; then
400 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
401 [Define this to check the string free list.])
403 if test x$ac_xmalloc_overrun != x ; then
404 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
405 [Define this to check for malloc buffer overrun.])
407 if test x$ac_gc_check_cons_list != x ; then
408 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
409 [Define this to check for errors in cons list.])
411 if test x$ac_glyphs_debug != x ; then
412 AC_DEFINE(GLYPH_DEBUG, 1,
413 [Define this to enable glyphs debugging code.])
416 AC_ARG_ENABLE(check-lisp-object-type,
417 [AS_HELP_STRING([--enable-check-lisp-object-type],
418 [enable compile time checks for the Lisp_Object data type.
419 This is useful for development for catching certain types of bugs.])],
420 if test "${enableval}" != "no"; then
421 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
422 [Define this to enable compile time checks for the Lisp_Object data type.])
426 dnl The name of this option is unfortunate. It predates, and has no
427 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
428 dnl Actually, it stops it working.
429 dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
430 AC_ARG_ENABLE(profiling,
431 [AS_HELP_STRING([--enable-profiling],
432 [build emacs with low-level, gprof profiling support.
433 Mainly useful for debugging Emacs itself. May not work on
434 all platforms. Stops profiler.el working.])],
435 [ac_enable_profiling="${enableval}"],[])
436 if test x$ac_enable_profiling != x ; then
437 PROFILING_CFLAGS="-DPROFILING=1 -pg"
441 AC_SUBST(PROFILING_CFLAGS)
443 AC_ARG_ENABLE(autodepend,
444 [AS_HELP_STRING([--enable-autodepend],
445 [automatically generate dependencies to .h-files.
446 Requires GNU Make and Gcc. Enabled if GNU Make and Gcc is
448 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
450 AC_ARG_ENABLE(gtk-deprecation-warnings,
451 [AS_HELP_STRING([--enable-gtk-deprecation-warnings],
452 [Show Gtk+/Gdk deprecation warnings for Gtk+ >= 3.0])],
453 [ac_enable_gtk_deprecation_warnings="${enableval}"],[])
455 ### Canonicalize the configuration name.
459 configuration=${host_alias-${build_alias-$host}}
461 dnl This used to use changequote, but, apart from `changequote is evil'
462 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
463 dnl the great gob of text. Thus it's not processed for possible expansion.
464 dnl Just make sure the brackets remain balanced.
466 dnl Since Emacs can't find matching pairs of quotes, boundaries are
467 dnl indicated by comments.
471 ### If you add support for a new configuration, add code to this
472 ### switch statement to recognize your configuration name and select
473 ### the appropriate opsys.
475 ### As far as handling version numbers on operating systems is
476 ### concerned, make sure things will fail in a fixable way. If
477 ### /etc/MACHINES doesn't say anything about version numbers, be
478 ### prepared to handle anything reasonably. If version numbers
479 ### matter, be sure /etc/MACHINES says something about it.
482 case "${canonical}" in
484 ## GNU/Linux and similar ports
499 ## FreeBSD kernel + glibc based userland
510 *-*-openbsd* | *-*-mirbsd* )
514 ## Apple Darwin / Mac OS X
516 case "${canonical}" in
523 ## Use fink packages if available.
524 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
525 ## if test -d /sw/include && test -d /sw/lib; then
526 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
527 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
536 ## HP 9000 series 700 and 800, running HP/UX
540 hppa*-hp-hpux1[1-9]* )
542 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
546 rs6000-ibm-aix4.[23]* )
549 powerpc-ibm-aix4.[23]* )
552 rs6000-ibm-aix[56]* )
555 powerpc-ibm-aix[5-9]* | powerpc-ibm-aix[1-9][0-9]* )
559 ## Silicon Graphics machines
563 # Without defining _LANGUAGE_C, things get masked out in the headers
564 # so that, for instance, grepping for `free' in stdlib.h fails and
565 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
566 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
571 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
572 | x86_64-*-solaris2* | x86_64-*-sunos5*)
573 case "${canonical}" in
575 amd64-*-*|x86_64-*-*) ;;
579 case "${canonical}" in
580 *-sunos5.[1-9][0-9]* | *-solaris2.[1-9][0-9]* )
582 emacs_check_sunpro_c=yes
584 *-sunos5.6* | *-solaris2.6* )
588 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
590 emacs_check_sunpro_c=yes
593 ## Watch out for a compiler that we know will not work.
594 case "${canonical}" in
595 *-solaris* | *-sunos5* )
596 if [ "x$CC" = x/usr/ucb/cc ]; then
597 ## /usr/ucb/cc doesn't work;
598 ## we should find some other compiler that does work.
606 ## Intel 386 machines where we don't care about the manufacturer.
608 case "${canonical}" in
609 *-darwin* ) opsys=darwin ;;
612 # MinGW overrides and adds some system headers in nt/inc.
613 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
615 *-sysv4.2uw* ) opsys=unixware ;;
616 *-sysv5uw* ) opsys=unixware ;;
617 *-sysv5OpenUNIX* ) opsys=unixware ;;
618 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
624 case "${canonical}" in
627 # MinGW overrides and adds some system headers in nt/inc.
628 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
630 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
639 ### If the code above didn't choose an operating system, just choose
640 ### an operating system based on the configuration name. You really
641 ### only want to use this when you have no idea what the right
642 ### operating system is; if you know what operating systems a machine
643 ### runs, it's cleaner to make it explicit in the case statement
645 if test x"${opsys}" = x; then
646 case "${canonical}" in
647 *-gnu* ) opsys=gnu ;;
657 if test $unported = yes; then
658 AC_MSG_ERROR([Emacs does not support `${canonical}' systems.
659 If you think it should, please send a report to bug-gnu-emacs@gnu.org.
660 Check `etc/MACHINES' for recognized configuration names.])
664 #### Choose a compiler.
666 dnl Sets GCC=yes if using gcc.
667 AC_PROG_CC([gcc cc cl clang "$XCRUN gcc" "$XCRUN clang"])
668 if test -n "$XCRUN"; then
669 AC_CHECK_PROGS(AR, [ar "$XCRUN ar"])
670 test -n "$AR" && export AR
675 if test x$GCC = xyes; then
676 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
678 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
681 dnl This is used in lib/Makefile.am to use nt/gnulib.mk, the
682 dnl alternative to lib/gnulib.mk, so as to avoid generating header files
683 dnl that clash with MinGW.
684 AM_CONDITIONAL([BUILDING_FOR_WINDOWSNT], [test "x$opsys" = "xmingw32"])
686 # Avoid gnulib's tests for -lcrypto, so that there's no static dependency on it.
687 AC_DEFUN([gl_CRYPTO_CHECK])
688 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
689 # as we don't use them.
690 AC_DEFUN([gl_FCNTL_O_FLAGS])
691 # Avoid gnulib's threadlib module, as we do threads our own way.
692 AC_DEFUN([gl_THREADLIB])
694 # Initialize gnulib right after choosing the compiler.
695 dnl Amongst other things, this sets AR and ARFLAGS.
698 if test "$ac_test_CFLAGS" != set; then
699 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
700 # if -g3 works and the user does not specify CFLAGS.
701 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
704 emacs_g3_CFLAGS='-g3';;
706 emacs_g3_CFLAGS='-g3 -O2';;
710 if test -n "$emacs_g3_CFLAGS"; then
711 emacs_save_CFLAGS=$CFLAGS
712 CFLAGS=$emacs_g3_CFLAGS
713 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
714 [emacs_cv_prog_cc_g3],
715 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
716 [emacs_cv_prog_cc_g3=yes],
717 [emacs_cv_prog_cc_g3=no])])
718 if test $emacs_cv_prog_cc_g3 != yes; then
719 CFLAGS=$emacs_save_CFLAGS
721 if test $opsys = mingw32; then
722 CFLAGS="$CFLAGS -gdwarf-2"
729 # No optimization flag was inferred for this non-GCC compiler.
730 # Try -O. This is needed for xlc on AIX; see Bug#14258.
731 emacs_save_CFLAGS=$CFLAGS
732 test -z "$CFLAGS" || CFLAGS="$CFLAGS "
734 AC_CACHE_CHECK([whether $CC accepts -O],
735 [emacs_cv_prog_cc_o],
736 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
737 [emacs_cv_prog_cc_o=yes],
738 [emacs_cv_prog_cc_o=no])])
739 if test $emacs_cv_prog_cc_o != yes; then
740 CFLAGS=$emacs_save_CFLAGS
745 AC_ARG_ENABLE([gcc-warnings],
746 [AS_HELP_STRING([--enable-gcc-warnings],
747 [turn on lots of GCC warnings/errors. This is intended for
748 developers, and may generate false alarms when used
749 with older or non-GNU development tools.])],
752 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
754 gl_gcc_warnings=$enableval],
758 AC_ARG_ENABLE(link-time-optimization,
759 [AS_HELP_STRING([--enable-link-time-optimization],
760 [build emacs with link-time optimization.
761 This requires GCC 4.5.0 or later.
762 It also makes Emacs harder to debug, and when we tried it
763 with GCC 4.9.0 x86-64 it made Emacs slower, so it's not
764 recommended for typical use.])],
765 if test "${enableval}" != "no"; then
766 AC_MSG_CHECKING([whether link-time optimization is supported])
768 if test x$GCC = xyes; then
769 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
770 if test x$CPUS != x; then
776 CFLAGS="$CFLAGS $LTO"
777 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
778 [ac_lto_supported=yes], [ac_lto_supported=no])
781 AC_MSG_RESULT([$ac_lto_supported])
782 if test "$ac_lto_supported" = "yes"; then
783 CFLAGS="$CFLAGS $LTO"
784 dnl The following is needed for GCC 4.9.0. The GCC 4.9.0 release notes
785 dnl suggest that instead of -ffat-lto-objects we should use gcc-ar and
786 dnl gcc-ranlib in place of ar and ranlib, but gcc-ar makes /usr/bin/ar
787 dnl dump core on Fedora 20, so play it safe for now.
788 gl_COMPILER_OPTION_IF([-ffat-lto-objects],
789 [CFLAGS="$CFLAGS -ffat-lto-objects"])
793 # clang is unduly picky about some things.
794 AC_CACHE_CHECK([whether the compiler is clang], [emacs_cv_clang],
801 [emacs_cv_clang=yes],
802 [emacs_cv_clang=no])])
804 # When compiling with GCC, prefer -isystem to -I when including system
805 # include files, to avoid generating useless diagnostics for the files.
806 if test "$gl_gcc_warnings" != yes; then
808 if test "$emacs_cv_clang" = yes
810 # Turn off some warnings if supported.
811 gl_WARN_ADD([-Wno-switch])
812 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
813 gl_WARN_ADD([-Wno-pointer-sign])
818 # This, $nw, is the list of warnings we disable.
821 case $with_x_toolkit in
822 lucid | athena | motif)
823 # Old toolkits mishandle 'const'.
824 nw="$nw -Wwrite-strings"
827 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
830 AC_SUBST([WERROR_CFLAGS])
832 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
833 nw="$nw -Woverlength-strings" # Not a problem these days
834 nw="$nw -Wlogical-op" # any use of fwrite provokes this
835 nw="$nw -Wformat-nonliteral" # we do this a lot
836 nw="$nw -Wvla" # warnings in gettext.h
837 nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
838 nw="$nw -Wswitch-default" # Too many warnings for now
839 nw="$nw -Winline" # OK to ignore 'inline'
840 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
841 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
842 # signed overflow has undefined behavior
843 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
844 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
845 nw="$nw -Wbad-function-cast" # These casts are no worse than others.
847 # Emacs doesn't care about shadowing; see
848 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
851 # Emacs's use of alloca inhibits protecting the stack.
852 nw="$nw -Wstack-protector"
854 # The following line should be removable at some point.
855 nw="$nw -Wsuggest-attribute=pure"
857 # This part is merely for shortening the command line,
858 # since -Wno-FOO needs to be added below regardless.
859 nw="$nw -Wmissing-field-initializers"
861 nw="$nw -Wtype-limits"
862 nw="$nw -Wunused-parameter"
864 if test $emacs_cv_clang = yes; then
865 nw="$nw -Wcast-align"
868 gl_MANYWARN_ALL_GCC([ws])
869 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
873 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
874 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
875 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
876 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
877 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
878 gl_WARN_ADD([-Wno-format-nonliteral])
880 # In spite of excluding -Wlogical-op above, it is enabled, as of
881 # gcc 4.5.0 20090517.
882 gl_WARN_ADD([-Wno-logical-op])
884 # More things that clang is unduly picky about.
885 if test $emacs_cv_clang = yes; then
886 gl_WARN_ADD([-Wno-format-extra-args])
887 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
888 gl_WARN_ADD([-Wno-unused-command-line-argument])
889 gl_WARN_ADD([-Wno-unused-value])
892 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
893 AH_VERBATIM([FORTIFY_SOURCE],
894 [/* Enable compile-time and run-time bounds-checking, and some warnings,
895 without upsetting glibc 2.15+. */
896 #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
897 # define _FORTIFY_SOURCE 2
900 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
902 # We use a slightly smaller set of warning options for lib/.
903 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
905 nw="$nw -Wunused-macros"
907 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
908 AC_SUBST([GNULIB_WARN_CFLAGS])
919 dnl Some other nice autoconf tests.
920 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
923 dnl if test "x$RANLIB" = x; then
928 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
929 dnl can be made to directories. This is not relevant for our usage, and
930 dnl excludes some cases that work fine for us. Eg MS Windows or files
931 dnl hosted on AFS, both examples where simple links work, but links to
932 dnl directories fail. We use a cut-down version instead.
935 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
936 rm -f conf$$ conf$$.file
938 LN_S_FILEONLY='cp -p'
940 dnl On MinGW, ensure we will call the MSYS /bin/ln.exe, not some
941 dnl random program in the current directory.
942 if (echo >conf$$.file) 2>/dev/null; then
943 if ln -s conf$$.file conf$$ 2>/dev/null; then
944 if test "$opsys" = "mingw32"; then
945 LN_S_FILEONLY='/bin/ln -s'
947 LN_S_FILEONLY='ln -s'
949 elif ln conf$$.file conf$$ 2>/dev/null; then
950 if test "$opsys" = "mingw32"; then
951 LN_S_FILEONLY=/bin/ln
958 rm -f conf$$ conf$$.file
960 if test "$LN_S_FILEONLY" = "ln -s"; then
963 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
966 AC_SUBST(LN_S_FILEONLY)
969 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
970 dnl doesn't support links to directories, as in "ln file dir". But that
971 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
972 dnl executables at "make install" time.
973 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
974 dnl for more details.
975 if test "$opsys" = "mingw32"; then
979 dnl On some Debian versions, "install-info" prints irritating messages
980 dnl "This is not dpkg install-info anymore, but GNU install-info"
981 dnl if called via an absolute file name.
982 dnl Use the entirely-identical-but-quieter ginstall-info instead if present.
983 dnl Sadly some people may have an old ginstall-info installed on
984 dnl non-Debian systems, so we can't use this.
985 dnl AC_PATH_PROGS(INSTALL_INFO, [ginstall-info install-info], :,
986 dnl $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
988 AC_PATH_PROG(INSTALL_INFO, install-info, :,
989 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
990 dnl Don't use GZIP, which is used by gzip for additional parameters.
991 AC_PATH_PROG(GZIP_PROG, gzip)
993 test $with_compress_install != yes && test -n "$GZIP_PROG" && \
994 GZIP_PROG=" # $GZIP_PROG # (disabled by configure --without-compress-install)"
996 if test $opsys = gnu-linux; then
997 AC_PATH_PROG(PAXCTL, paxctl,,
998 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
999 if test "X$PAXCTL" != X; then
1000 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
1001 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1002 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
1003 else AC_MSG_RESULT(no); PAXCTL=""; fi])
1006 if test "${SETFATTR+set}" != set; then
1007 AC_CACHE_CHECK([for setfattr],
1008 [emacs_cv_prog_setfattr],
1010 if (setfattr -n user.pax.flags conftest.tmp) >/dev/null 2>&1; then
1011 emacs_cv_prog_setfattr=yes
1013 emacs_cv_prog_setfattr=no
1015 if test "$emacs_cv_prog_setfattr" = yes; then
1021 AC_SUBST([SETFATTR])
1025 ## Need makeinfo >= 4.7 (?) to build the manuals.
1026 AC_PATH_PROG(MAKEINFO, makeinfo, no)
1027 dnl By this stage, configure has already checked for egrep and set EGREP,
1028 dnl or exited with an error if no egrep was found.
1029 if test "$MAKEINFO" != "no"; then
1031 $MAKEINFO --version 2> /dev/null |
1032 $EGREP 'texinfo[[^0-9]]*([[1-4]][[0-9]]+|[[5-9]]|4\.[[7-9]]|4\.[[1-6]][[0-9]]+)'
1038 ## Makeinfo is unusual. For a released Emacs, the manuals are
1039 ## pre-built, and not deleted by the normal clean rules. makeinfo is
1040 ## therefore in the category of "special tools" not normally required, which
1041 ## configure does not have to check for (eg autoconf itself).
1042 ## In a repository checkout on the other hand, the manuals are not included.
1043 ## So makeinfo is a requirement to build from the repository, and configure
1044 ## should test for it as it does for any other build requirement.
1045 ## We use the presence of $srcdir/info/emacs to distinguish a release,
1046 ## with pre-built manuals, from a repository checkout.
1049 if test "$MAKEINFO" = "no"; then
1051 if test "x${with_makeinfo}" = "xno"; then
1053 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
1054 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
1055 source tree does not seem to have pre-built manuals in the `info' directory.
1056 Either install a suitable version of makeinfo, or re-run configure
1057 with the `--without-makeinfo' option to build without the manuals.] )
1060 AC_SUBST(HAVE_MAKEINFO)
1062 dnl Just so that there is only a single place we need to edit.
1064 INFO_OPTS=--no-split
1068 if test $opsys = mingw32; then
1069 DOCMISC_W32=efaq-w32
1073 AC_SUBST(DOCMISC_W32)
1075 dnl Add our options to ac_link now, after it is set up.
1077 if test x$GCC = xyes; then
1078 test "x$GCC_LINK_TEST_OPTIONS" != x && \
1079 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1081 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
1082 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1085 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
1086 dnl If we can link with the flag, it shouldn't do any harm anyhow.
1087 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
1088 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
1089 dnl if not built to support GNU ld.
1091 dnl For a long time, -znocombreloc was added to LDFLAGS rather than
1092 dnl LD_SWITCH_SYSTEM_TEMACS. That is:
1093 dnl * inappropriate, as LDFLAGS is a user option but this is essential.
1094 dnl Eg "make LDFLAGS=... all" could run into problems,
1095 dnl http://bugs.debian.org/684788
1096 dnl * unnecessary, since temacs is the only thing that actually needs it.
1097 dnl Indeed this is where it was originally, prior to:
1098 dnl http://lists.gnu.org/archive/html/emacs-pretest-bug/2004-03/msg00170.html
1099 late_LDFLAGS="$LDFLAGS"
1100 if test x$GCC = xyes; then
1101 LDFLAGS_NOCOMBRELOC="-Wl,-znocombreloc"
1103 LDFLAGS_NOCOMBRELOC="-znocombreloc"
1106 LDFLAGS="$LDFLAGS $LDFLAGS_NOCOMBRELOC"
1108 AC_MSG_CHECKING([for -znocombreloc])
1109 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1110 [AC_MSG_RESULT(yes)],
1111 LDFLAGS_NOCOMBRELOC=
1112 [AC_MSG_RESULT(no)])
1114 LDFLAGS="$late_LDFLAGS"
1116 AC_CACHE_CHECK([whether addresses are sanitized],
1117 [emacs_cv_sanitize_address],
1120 [[#ifndef __has_feature
1121 #define __has_feature(f) 0
1123 #if defined __SANITIZE_ADDRESS__ || __has_feature (address_sanitizer)
1125 error "Addresses are not sanitized.";
1128 [emacs_cv_sanitize_address=yes],
1129 [emacs_cv_sanitize_address=no])])
1131 dnl The function dump-emacs will not be defined and temacs will do
1132 dnl (load "loadup") automatically unless told otherwise.
1133 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
1135 your-opsys-here) CANNOT_DUMP=yes ;;
1138 if test "$CANNOT_DUMP" = "yes"; then
1139 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1140 elif test "$emacs_cv_sanitize_address" = yes; then
1141 AC_MSG_WARN([[Addresses are sanitized; suggest CANNOT_DUMP=yes]])
1144 AC_SUBST(CANNOT_DUMP)
1147 UNEXEC_OBJ=unexelf.o
1149 # MSDOS uses unexcoff.o
1151 UNEXEC_OBJ=unexaix.o
1157 UNEXEC_OBJ=unexmacosx.o
1160 UNEXEC_OBJ=unexhp9k800.o
1163 UNEXEC_OBJ=unexw32.o
1166 # Use the Solaris dldump() function, called from unexsol.c, to dump
1167 # emacs, instead of the generic ELF dump code found in unexelf.c.
1168 # The resulting binary has a complete symbol table, and is better
1169 # for debugging and other observability tools (debuggers, pstack, etc).
1171 # If you encounter a problem using dldump(), please consider sending
1172 # a message to the OpenSolaris tools-linking mailing list:
1173 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1175 # It is likely that dldump() works with older Solaris too, but this has
1176 # not been tested, so for now this change is for Solaris 10 or newer.
1177 UNEXEC_OBJ=unexsol.o
1184 ## Let `ld' find image libs and similar things in /usr/local/lib.
1185 ## The system compiler, GCC, has apparently been modified to not
1186 ## look there, contrary to what a stock GCC would do.
1187 ### It's not our place to do this. See bug#10313#17.
1188 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1193 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1194 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1198 ### It's not our place to do this. See bug#10313#17.
1199 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1204 ## Han Boetes <han@boetes.org> says this is necessary,
1205 ## otherwise Emacs dumps core on elf systems.
1206 LD_SWITCH_SYSTEM="-Z"
1209 AC_SUBST(LD_SWITCH_SYSTEM)
1211 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1213 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1214 ## which has not been defined yet. When this was handled with cpp,
1215 ## it was expanded to null when configure sourced the s/*.h file.
1216 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1217 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1218 ## (or somesuch), but because it is supposed to go at the _front_
1219 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1220 ## Compare with the gnu-linux case below, which added to the end
1221 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1222 ## LD_SWITCH_SYSTEM_TEMACS.
1225 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1232 AC_CHECK_DECL([__ELF__])
1233 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1234 ## With ELF, make sure that all common symbols get allocated to in the
1235 ## data section. Otherwise, the dump of temacs may miss variables in
1236 ## the shared library that have been initialized. For example, with
1237 ## GNU libc, __malloc_initialized would normally be resolved to the
1238 ## shared library's .bss section, which is fatal.
1239 if test "x$GCC" = "xyes"; then
1240 C_SWITCH_MACHINE="-fno-common"
1242 AC_MSG_ERROR([Non-GCC compilers are not supported.])
1245 dnl This was the unexalpha.c case. Removed in 24.1, 2010-07-24,
1246 dnl albeit under the mistaken assumption that said file
1247 dnl was no longer used.
1248 AC_MSG_ERROR([Non-ELF systems are not supported since Emacs 24.1.])
1252 AC_SUBST(C_SWITCH_MACHINE)
1254 AC_SUBST(UNEXEC_OBJ)
1257 ## Some programs in src produce warnings saying certain subprograms
1258 ## are too complex and need a MAXMEM value greater than 2000 for
1259 ## additional optimization. --nils@exp-math.uni-essen.de
1260 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1261 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1262 if test "$opsys" = "mingw32"; then
1263 case "$canonical" in
1264 x86_64-*-mingw32) C_SWITCH_SYSTEM="-mtune=generic" ;;
1265 *) C_SWITCH_SYSTEM="-mtune=pentium4" ;;
1268 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1269 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1270 AC_SUBST(C_SWITCH_SYSTEM)
1275 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1276 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1278 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1280 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1282 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1284 ## Motif needs -lgen.
1285 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1288 AC_SUBST(LIBS_SYSTEM)
1290 ### Make sure subsequent tests use flags consistent with the build flags.
1292 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1293 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1295 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1298 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C89 or better.
1299 AC_DEFUN([AC_TYPE_SIZE_T])
1300 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1301 AC_DEFUN([AC_TYPE_UID_T])
1305 dnl Current possibilities handled by sed (aix4-2 -> aix,
1306 dnl gnu-linux -> gnu/linux, etc.):
1307 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1308 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1309 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1316 ## Adding -lm confuses the dynamic linker, so omit it.
1319 freebsd | dragonfly )
1320 SYSTEM_TYPE=berkeley-unix
1322 gnu-linux | gnu-kfreebsd )
1324 hpux10-20 | hpux11 )
1328 SYSTEM_TYPE=windows-nt
1330 dnl NB this may be adjusted below.
1332 SYSTEM_TYPE=berkeley-unix
1336 SYSTEM_TYPE=usg-unix-v
1342 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1343 [The type of system you are compiling for; sets `system-type'.])
1346 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1347 pre_PKG_CONFIG_LIBS=$LIBS
1349 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
1351 dnl This function definition taken from Gnome 2.0
1352 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
1353 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
1354 dnl also defines GSTUFF_PKG_ERRORS on error
1355 AC_DEFUN([PKG_CHECK_MODULES], [
1358 if test "$PKG_CONFIG" = "no" ; then
1359 ifelse([$4], , [AC_MSG_ERROR([
1360 *** The pkg-config script could not be found. Make sure it is in your path, or give the full name of pkg-config with the PKG_CONFIG environment variable or --with-pkg-config-prog. Or see http://www.freedesktop.org/software/pkgconfig to get pkg-config.])], [$4])
1362 PKG_CONFIG_MIN_VERSION=0.9.0
1363 if "$PKG_CONFIG" --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
1364 AC_MSG_CHECKING(for $2)
1366 if "$PKG_CONFIG" --exists "$2" 2>&AS_MESSAGE_LOG_FD &&
1367 $1_CFLAGS=`"$PKG_CONFIG" --cflags "$2" 2>&AS_MESSAGE_LOG_FD` &&
1368 $1_LIBS=`"$PKG_CONFIG" --libs "$2" 2>&AS_MESSAGE_LOG_FD`; then
1369 $1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1370 $1_LIBS=`AS_ECHO(["$$1_LIBS"]) | sed -e 's,///*,/,g'`
1371 AC_MSG_RESULT([yes CFLAGS='$$1_CFLAGS' LIBS='$$1_LIBS'])
1377 ## If we have a custom action on failure, don't print errors, but
1378 ## do set a variable so people can do so. Do it in a subshell
1379 ## to capture any diagnostics in invoking pkg-config.
1380 $1_PKG_ERRORS=`("$PKG_CONFIG" --print-errors "$2") 2>&1`
1381 ifelse([$4], ,echo "$$1_PKG_ERRORS",)
1387 echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
1388 echo "*** See http://www.freedesktop.org/software/pkgconfig"
1392 if test $succeeded = yes; then
1393 ifelse([$3], , :, [$3])
1395 ifelse([$4], , [AC_MSG_ERROR([Library requirements ($2) not met; consider adjusting the PKG_CONFIG_PATH environment variable if your libraries are in a nonstandard prefix so pkg-config can find them.])], [$4])
1400 if test "${with_sound}" != "no"; then
1401 # Sound support for GNU/Linux, the free BSDs, and MinGW.
1402 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h mmsystem.h],
1403 have_sound_header=yes, [], [
1405 #define WIN32_LEAN_AND_MEAN
1406 #include <windows.h>
1409 test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
1410 AC_MSG_ERROR([OSS sound support requested but not found.])
1412 if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
1413 # Emulation library used on NetBSD.
1414 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1415 test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
1416 AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
1417 dnl FIXME? If we did find ossaudio, should we set with_sound=bsd-ossaudio?
1418 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1422 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1424 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1425 PKG_CHECK_MODULES(ALSA, $ALSA_MODULES, HAVE_ALSA=yes, HAVE_ALSA=no)
1426 if test $HAVE_ALSA = yes; then
1427 SAVE_CFLAGS="$CFLAGS"
1429 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1430 LIBS="$ALSA_LIBS $LIBS"
1431 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1432 emacs_alsa_normal=yes,
1433 emacs_alsa_normal=no)
1434 if test "$emacs_alsa_normal" != yes; then
1435 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1436 [[snd_lib_error_set_handler (0);]])],
1437 emacs_alsa_subdir=yes,
1438 emacs_alsa_subdir=no)
1439 if test "$emacs_alsa_subdir" != yes; then
1440 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1442 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1445 CFLAGS="$SAVE_CFLAGS"
1447 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1448 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1449 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1450 elif test "${with_sound}" = "alsa"; then
1451 AC_MSG_ERROR([ALSA sound support requested but not found.])
1453 fi dnl with_sound = alsa|yes
1455 dnl Define HAVE_SOUND if we have sound support. We know it works and
1456 dnl compiles only on the specified platforms. For others, it
1457 dnl probably doesn't make sense to try.
1458 dnl FIXME So surely we should bypass this whole section if not using
1459 dnl one of these platforms?
1460 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1462 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1463 dnl Adjust the --with-sound help text if you change this.
1464 gnu-linux|freebsd|netbsd|mingw32)
1465 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1471 AC_SUBST(CFLAGS_SOUND)
1474 dnl checks for header files
1475 AC_CHECK_HEADERS_ONCE(
1479 sys/utsname.h pwd.h utmp.h util.h)
1481 AC_MSG_CHECKING(if personality LINUX32 can be set)
1482 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1483 emacs_cv_personality_linux32=yes,
1484 emacs_cv_personality_linux32=no)
1485 AC_MSG_RESULT($emacs_cv_personality_linux32)
1487 if test $emacs_cv_personality_linux32 = yes; then
1488 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1489 [Define to 1 if personality LINUX32 can be set.])
1492 dnl On Solaris 8 there's a compilation warning for term.h because
1493 dnl it doesn't define `bool'.
1494 AC_CHECK_HEADERS(term.h, , , -)
1496 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1498 if test $ac_cv_have_decl_sys_siglist != yes; then
1499 # For Tru64, at least:
1500 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1505 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1506 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1507 #if HAVE_SYS_SOCKET_H
1508 #include <sys/socket.h>
1510 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1511 #if HAVE_SYS_SOCKET_H
1512 #include <sys/socket.h>
1514 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1515 #if HAVE_SYS_SOCKET_H
1516 #include <sys/socket.h>
1519 dnl checks for structure members
1520 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1521 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1522 struct ifreq.ifr_addr,
1523 struct ifreq.ifr_addr.sa_len], , ,
1524 [AC_INCLUDES_DEFAULT
1525 #if HAVE_SYS_SOCKET_H
1526 #include <sys/socket.h>
1532 dnl Check for endianness.
1533 dnl AC_C_BIGENDIAN is done by gnulib.
1535 dnl check for Make feature
1536 dnl AC_PROG_MAKE_SET is done by Automake.
1541 dnl check for GNU Make if we have GCC and autodepend is on.
1542 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1543 AC_MSG_CHECKING([whether we are using GNU Make])
1545 testval=`${MAKE-make} --version 2>/dev/null | grep 'GNU Make'`
1546 if test "x$testval" != x; then
1549 ac_enable_autodepend=no
1551 AC_MSG_RESULT([$HAVE_GNU_MAKE])
1552 if test $HAVE_GNU_MAKE = yes; then
1553 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1554 SAVE_CFLAGS="$CFLAGS"
1555 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1556 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1557 CFLAGS="$SAVE_CFLAGS"
1558 test -f deps.d || ac_enable_autodepend=no
1560 AC_MSG_RESULT([$ac_enable_autodepend])
1562 if test $ac_enable_autodepend = yes; then
1563 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1564 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1565 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1566 deps_frag=autodeps.mk
1569 deps_frag=$srcdir/src/$deps_frag
1572 AC_SUBST_FILE(deps_frag)
1575 lisp_frag=$srcdir/src/lisp.mk
1576 AC_SUBST_FILE(lisp_frag)
1579 dnl checks for operating system services
1580 AC_SYS_LONG_FILE_NAMES
1582 #### Choose a window system.
1584 ## We leave window_system equal to none if
1585 ## we end up building without one. Any new window system should
1586 ## set window_system to an appropriate value and add objects to
1587 ## window-system-specific substs.
1591 if test "$no_x" != yes; then
1595 LD_SWITCH_X_SITE_RPATH=
1596 if test "${x_libraries}" != NONE; then
1597 if test -n "${x_libraries}"; then
1598 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1599 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1601 x_default_search_path=""
1602 x_search_path=${x_libraries}
1603 if test -z "${x_search_path}"; then
1604 x_search_path=/usr/lib
1606 for x_library in `echo ${x_search_path}: | \
1607 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1609 ${x_library}/X11/%L/%T/%N%C%S:\
1610 ${x_library}/X11/%l/%T/%N%C%S:\
1611 ${x_library}/X11/%T/%N%C%S:\
1612 ${x_library}/X11/%L/%T/%N%S:\
1613 ${x_library}/X11/%l/%T/%N%S:\
1614 ${x_library}/X11/%T/%N%S"
1615 if test x"${x_default_search_path}" = x; then
1616 x_default_search_path=${x_search_path}
1618 x_default_search_path="${x_search_path}:${x_default_search_path}"
1622 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1624 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1625 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1628 if test x"${x_includes}" = x; then
1629 bitmapdir=/usr/include/X11/bitmaps
1631 # accumulate include directories that have X11 bitmap subdirectories
1633 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1634 if test -d "${bmd}/X11/bitmaps"; then
1635 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1637 if test -d "${bmd}/bitmaps"; then
1638 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1641 if test ${bmd_acc} != "dummyval"; then
1642 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1649 tmp_CPPFLAGS="$CPPFLAGS"
1650 tmp_CFLAGS="$CFLAGS"
1651 CPPFLAGS="$CPPFLAGS -x objective-c"
1652 CFLAGS="$CFLAGS -x objective-c"
1655 if test "${with_ns}" != no; then
1656 if test "${opsys}" = darwin; then
1658 ns_appdir=`pwd`/nextstep/Emacs.app
1659 ns_appbindir=${ns_appdir}/Contents/MacOS
1660 ns_appresdir=${ns_appdir}/Contents/Resources
1661 ns_appsrc=Cocoa/Emacs.base
1662 elif test -f $GNUSTEP_CONFIG_FILE; then
1664 ns_appdir=`pwd`/nextstep/Emacs.app
1665 ns_appbindir=${ns_appdir}
1666 ns_appresdir=${ns_appdir}/Resources
1667 ns_appsrc=GNUstep/Emacs.base
1668 dnl FIXME sourcing this several times in subshells seems inefficient.
1669 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1670 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1671 dnl I seemed to need these as well with GNUstep-startup 0.25.
1672 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1673 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1674 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1675 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1676 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1677 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1678 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1679 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1680 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1681 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1682 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1683 dnl If they had chosen to either define it or not, we could have
1684 dnl just used AC_CHECK_DECL here.
1685 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1686 emacs_cv_objc_exceptions,
1687 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1688 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1692 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1693 if test $emacs_cv_objc_exceptions = yes; then
1694 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1695 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1696 [Define if GNUstep uses ObjC exceptions.])
1697 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1701 dnl This is only used while we test the NS headers, it gets reset below.
1702 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1704 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1705 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1706 files are missing or cannot be compiled.])])
1709 if test "${NS_IMPL_COCOA}" = "yes"; then
1710 AC_MSG_CHECKING([for OSX 10.4 or newer])
1711 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1713 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1714 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
1717 error "OSX 10.4 or newer required";
1721 ns_osx_have_104=yes,
1723 AC_MSG_RESULT([$ns_osx_have_104])
1725 if test $ns_osx_have_104 = no; then
1726 AC_MSG_ERROR([`OSX 10.4 or newer is required']);
1728 AC_MSG_CHECKING([for OSX 10.5 or newer])
1729 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1731 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1732 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1050
1735 error "OSX 10.5 not found";
1739 ns_osx_have_105=yes,
1741 AC_MSG_RESULT([$ns_osx_have_105])
1742 if test $ns_osx_have_105 = yes; then
1743 macfont_file="macfont.o"
1746 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1748 ns_have_nsinteger=yes,
1749 ns_have_nsinteger=no)
1750 if test $ns_have_nsinteger = yes; then
1751 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1755 AC_SUBST(LIBS_GNUSTEP)
1757 INSTALL_ARCH_INDEP_EXTRA=install-etc
1758 ns_self_contained=no
1761 if test "${HAVE_NS}" = yes; then
1762 if test "$with_toolkit_scroll_bars" = "no"; then
1763 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1766 window_system=nextstep
1767 # set up packaging dirs
1768 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1769 ns_self_contained=yes
1770 prefix=${ns_appresdir}
1771 exec_prefix=${ns_appbindir}
1772 dnl This one isn't really used, only archlibdir is.
1773 libexecdir="\${ns_appbindir}/libexec"
1774 archlibdir="\${ns_appbindir}/libexec"
1775 etcdocdir="\${ns_appresdir}/etc"
1776 etcdir="\${ns_appresdir}/etc"
1777 dnl FIXME maybe set datarootdir instead.
1778 dnl That would also get applications, icons, man.
1779 infodir="\${ns_appresdir}/info"
1780 mandir="\${ns_appresdir}/man"
1781 lispdir="\${ns_appresdir}/lisp"
1782 INSTALL_ARCH_INDEP_EXTRA=
1785 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o $macfont_file"
1787 CFLAGS="$tmp_CFLAGS"
1788 CPPFLAGS="$tmp_CPPFLAGS"
1789 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1790 AC_SUBST(ns_self_contained)
1792 AC_SUBST(NS_OBJC_OBJ)
1803 if test "${with_w32}" != no; then
1806 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1807 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1808 cannot be found.])])
1811 ## Using --with-w32 with MinGW is a no-op, but we allow it.
1814 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
1819 if test "${opsys}" = "mingw32"; then
1820 AC_MSG_CHECKING([whether Windows API headers are recent enough])
1821 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1822 #include <windows.h>
1823 #include <usp10.h>]],
1824 [[PIMAGE_NT_HEADERS pHeader;
1825 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
1826 [emacs_cv_w32api=yes
1829 AC_MSG_RESULT($emacs_cv_w32api)
1830 if test "${emacs_cv_w32api}" = "no"; then
1831 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
1842 if test "${HAVE_W32}" = "yes"; then
1843 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1844 if test "$with_toolkit_scroll_bars" = "no"; then
1845 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for w32 build.])
1847 AC_CHECK_TOOL(WINDRES, [windres],
1848 [AC_MSG_ERROR([No resource compiler found.])])
1849 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1850 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1851 EMACSRES="emacs.res"
1852 case "$canonical" in
1853 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
1854 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
1856 if test "${opsys}" = "cygwin"; then
1857 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1858 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1859 # Tell the linker that emacs.res is an object (which we compile from
1860 # the rc file), not a linker script.
1861 W32_RES_LINK="-Wl,emacs.res"
1863 UPDATE_MANIFEST=update-game-score.exe.manifest
1864 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
1865 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
1866 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
1867 W32_RES_LINK="\$(EMACSRES)"
1868 CLIENTRES="emacsclient.res"
1869 CLIENTW="emacsclientw\$(EXEEXT)"
1870 FIRSTFILE_OBJ=firstfile.o
1873 LIBS_ECLIENT="-lcomctl32"
1874 LIB_WSOCK32="-lwsock32"
1875 NTLIB="ntlib.$ac_objext"
1876 XARGS_LIMIT="-s 10000"
1882 AC_SUBST(EMACS_MANIFEST)
1883 AC_SUBST(UPDATE_MANIFEST)
1886 AC_SUBST(W32_RES_LINK)
1887 AC_SUBST(FIRSTFILE_OBJ)
1890 AC_SUBST(LIBS_ECLIENT)
1891 AC_SUBST(LIB_WSOCK32)
1893 AC_SUBST(XARGS_LIMIT)
1895 if test "${HAVE_W32}" = "yes"; then
1900 ## $window_system is now set to the window system we will
1903 if test "$window_system" = none && test "$gl_gcc_warnings" = yes; then
1904 # Too many warnings for now.
1906 nw="$nw -Wsuggest-attribute=const"
1907 nw="$nw -Wsuggest-attribute=noreturn"
1908 gl_MANYWARN_COMPLEMENT([WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
1910 gl_WARN_ADD([-Wno-unused-variable])
1911 gl_WARN_ADD([-Wno-unused-but-set-variable])
1912 gl_WARN_ADD([-Wno-unused-but-set-parameter])
1920 case "${window_system}" in
1925 case "${with_x_toolkit}" in
1926 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1927 motif ) USE_X_TOOLKIT=MOTIF ;;
1929 term_header=gtkutil.h
1930 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1931 dnl USE_X_TOOLKIT is set.
1932 USE_X_TOOLKIT=none ;;
1933 gtk2 ) with_gtk2=yes
1934 term_header=gtkutil.h
1935 USE_X_TOOLKIT=none ;;
1936 gtk3 ) with_gtk3=yes
1937 term_header=gtkutil.h
1938 USE_X_TOOLKIT=none ;;
1939 no ) USE_X_TOOLKIT=none ;;
1940 dnl If user did not say whether to use a toolkit, make this decision later:
1941 dnl use the toolkit if we have gtk, or X11R5 or newer.
1942 * ) USE_X_TOOLKIT=maybe ;;
1946 term_header=nsterm.h
1949 term_header=w32term.h
1953 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1954 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1955 if test "$HAVE_XSERVER" = true ||
1956 test -n "$DISPLAY" ||
1957 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1958 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1959 were found. You should install the relevant development files for X
1960 and for the toolkit you want, such as Gtk+ or Motif. Also make
1961 sure you have development files for image handling, i.e.
1962 tiff, gif, jpeg, png and xpm.
1963 If you are sure you want Emacs compiled without X window support, pass
1969 # Does the opsystem file prohibit the use of the GNU malloc?
1970 # Assume not, until told otherwise.
1974 [whether malloc is Doug Lea style],
1975 [emacs_cv_var_doug_lea_malloc],
1976 [emacs_cv_var_doug_lea_malloc=no
1977 dnl Hooks do not work with address sanitization.
1978 if test "$emacs_cv_sanitize_address" != yes; then
1981 [[#include <malloc.h>
1982 static void hook (void) {}]],
1983 [[malloc_set_state (malloc_get_state ());
1984 __after_morecore_hook = hook;
1985 __malloc_initialize_hook = hook;]])],
1986 [emacs_cv_var_doug_lea_malloc=yes])])
1988 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1990 system_malloc=$emacs_cv_sanitize_address
1992 ## darwin ld insists on the use of malloc routines in the System framework.
1993 darwin|sol2-10) system_malloc=yes ;;
1997 if test "${system_malloc}" = "yes"; then
1998 AC_DEFINE([SYSTEM_MALLOC], 1,
1999 [Define to 1 to use the system memory allocator, even if it is not
2003 (The GNU allocators don't work with this system configuration.)"
2006 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
2007 VMLIMIT_OBJ=vm-limit.o
2009 AC_CHECK_HEADERS([sys/vlimit.h])
2010 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
2013 [[extern char data_start[]; char ch;]],
2014 [[return data_start < &ch;]])],
2015 [emacs_cv_data_start=yes],
2016 [emacs_cv_data_start=no])])
2017 if test $emacs_cv_data_start = yes; then
2018 AC_DEFINE([HAVE_DATA_START], 1,
2019 [Define to 1 if data_start is the address of the start
2020 of the main data segment.])
2023 AC_SUBST(GMALLOC_OBJ)
2024 AC_SUBST(VMLIMIT_OBJ)
2026 if test "$doug_lea_malloc" = "yes" ; then
2027 if test "$GNU_MALLOC" = yes ; then
2029 (Using Doug Lea's new malloc from the GNU C Library.)"
2031 AC_DEFINE(DOUG_LEA_MALLOC, 1,
2032 [Define to 1 if the system memory allocator is Doug Lea style,
2033 with malloc hooks and malloc_set_state.])
2035 ## Use mmap directly for allocating larger buffers.
2036 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
2037 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
2038 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
2040 gnu*) REL_ALLOC=no ;;
2044 if test x"${REL_ALLOC}" = x; then
2045 REL_ALLOC=${GNU_MALLOC}
2048 use_mmap_for_buffers=no
2050 cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
2054 if test $use_mmap_for_buffers = yes; then
2055 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
2059 LIBS="$LIBS_SYSTEM $LIBS"
2061 dnl If found, this adds -ldnet to LIBS, which Autoconf uses for checks.
2062 AC_CHECK_LIB(dnet, dnet_ntoa)
2063 dnl This causes -lresolv to get used in subsequent tests,
2064 dnl which causes failures on some systems such as HPUX 9.
2065 dnl AC_CHECK_LIB(resolv, gethostbyname)
2067 dnl FIXME replace main with a function we actually want from this library.
2068 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
2070 dnl Check if pthreads is available.
2072 AC_CHECK_HEADERS_ONCE(pthread.h)
2073 if test "$ac_cv_header_pthread_h"; then
2074 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
2075 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
2076 dnl testing for pthread_self if Emacs uses gmalloc.c.
2077 if test "$GMALLOC_OBJ" = gmalloc.o; then
2078 emacs_pthread_function=pthread_atfork
2080 emacs_pthread_function=pthread_self
2082 AC_CHECK_LIB(pthread, $emacs_pthread_function, HAVE_PTHREAD=yes)
2084 if test "$HAVE_PTHREAD" = yes; then
2085 case "${canonical}" in
2087 *) LIB_PTHREAD="-lpthread"
2088 LIBS="$LIB_PTHREAD $LIBS" ;;
2090 AC_DEFINE(HAVE_PTHREAD, 1, [Define to 1 if you have pthread (-lpthread).])
2092 # Some systems optimize for single-threaded programs by default, and
2093 # need special flags to disable these optimizations. For example, the
2094 # definition of 'errno' in <errno.h>.
2097 AC_DEFINE([_REENTRANT], 1,
2098 [Define to 1 if your system requires this in multithreaded code.]);;
2100 AC_DEFINE([_THREAD_SAFE], 1,
2101 [Define to 1 if your system requires this in multithreaded code.]);;
2104 AC_SUBST([LIB_PTHREAD])
2106 AC_CHECK_LIB(pthreads, cma_open)
2108 ## Note: when using cpp in s/aix4.2.h, this definition depended on
2109 ## HAVE_LIBPTHREADS. That was not defined earlier in configure when
2110 ## the system file was sourced. Hence the value of LIBS_SYSTEM
2111 ## added to LIBS in configure would never contain the pthreads part,
2112 ## but the value used in Makefiles might. FIXME?
2114 ## -lpthreads seems to be necessary for Xlib in X11R6, and should
2115 ## be harmless on older versions of X where it happens to exist.
2116 test "$opsys" = "aix4-2" && \
2117 test $ac_cv_lib_pthreads_cma_open = yes && \
2118 LIBS_SYSTEM="$LIBS_SYSTEM -lpthreads"
2120 dnl Check for need for bigtoc support on IBM AIX
2124 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
2126 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
2127 *) gdb_cv_bigtoc=-bbigtoc ;;
2130 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
2131 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
2136 # Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
2137 # used for the tests that follow. We set them back to REAL_CFLAGS and
2138 # REAL_CPPFLAGS later on.
2140 REAL_CFLAGS="$CFLAGS"
2141 REAL_CPPFLAGS="$CPPFLAGS"
2143 if test "${HAVE_X11}" = "yes"; then
2144 DEFS="$C_SWITCH_X_SITE $DEFS"
2145 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2147 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2148 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2150 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2151 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2152 # but it's more convenient here to set LD_RUN_PATH since this
2153 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2154 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2155 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2159 if test "${opsys}" = "gnu-linux"; then
2160 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2161 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2162 [[XOpenDisplay ("foo");]])],
2163 [xgnu_linux_first_failure=no],
2164 [xgnu_linux_first_failure=yes])
2165 if test "${xgnu_linux_first_failure}" = "yes"; then
2166 OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
2167 OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
2168 OLD_CPPFLAGS="$CPPFLAGS"
2170 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2171 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2172 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2173 LIBS="$LIBS -b i486-linuxaout"
2174 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2175 [[XOpenDisplay ("foo");]])],
2176 [xgnu_linux_second_failure=no],
2177 [xgnu_linux_second_failure=yes])
2178 if test "${xgnu_linux_second_failure}" = "yes"; then
2179 # If we get the same failure with -b, there is no use adding -b.
2180 # So take it out. This plays safe.
2181 LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
2182 C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
2183 CPPFLAGS="$OLD_CPPFLAGS"
2194 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2195 # header files included from there.
2196 AC_MSG_CHECKING(for Xkb)
2197 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2198 #include <X11/XKBlib.h>]],
2199 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2200 emacs_xkb=yes, emacs_xkb=no)
2201 AC_MSG_RESULT($emacs_xkb)
2202 if test $emacs_xkb = yes; then
2203 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2206 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2207 XScreenNumberOfScreen)
2210 if test "${window_system}" = "x11"; then
2211 AC_MSG_CHECKING(X11 version 6)
2212 AC_CACHE_VAL(emacs_cv_x11_version_6,
2213 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2214 [[#if XlibSpecificationRelease < 6
2217 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2218 if test $emacs_cv_x11_version_6 = yes; then
2219 AC_MSG_RESULT(6 or newer)
2220 AC_DEFINE(HAVE_X11R6, 1,
2221 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2222 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2223 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2227 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2228 [Define if you have usable X11R6-style XIM support.])
2232 AC_MSG_RESULT(before 6)
2237 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
2239 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2240 if test "${with_rsvg}" != "no"; then
2241 RSVG_REQUIRED=2.11.0
2242 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2244 PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, HAVE_RSVG=yes, :)
2245 AC_SUBST(RSVG_CFLAGS)
2248 if test $HAVE_RSVG = yes; then
2249 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2250 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2251 # Windows loads librsvg dynamically
2252 if test "${opsys}" = "mingw32"; then
2255 LIBS="$RSVG_LIBS $LIBS"
2261 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${HAVE_W32}" = "yes"; then
2262 if test "${with_imagemagick}" != "no"; then
2263 ## 6.3.5 is the earliest version known to work; see Bug#17339.
2264 ## 6.8.2 makes Emacs crash; see Bug#13867.
2265 IMAGEMAGICK_MODULE="Wand >= 6.3.5 Wand != 6.8.2"
2266 PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
2267 AC_SUBST(IMAGEMAGICK_CFLAGS)
2268 AC_SUBST(IMAGEMAGICK_LIBS)
2270 if test $HAVE_IMAGEMAGICK = yes; then
2271 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2272 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2273 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2274 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
2282 gtk_term_header=$term_header
2285 if test "${opsys}" != "mingw32"; then
2286 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2289 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2291 dnl Checks for libraries.
2292 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
2293 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2294 AC_MSG_ERROR($GTK_PKG_ERRORS)
2296 if test "$pkg_check_gtk" = "yes"; then
2297 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2298 GTK_OBJ=emacsgtkfixed.o
2299 gtk_term_header=gtkutil.h
2300 USE_GTK_TOOLKIT="GTK3"
2301 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2302 AC_DEFINE([GDK_DISABLE_DEPRECATION_WARNINGS], [1],
2303 [Define to 1 to disable GTK+/GDK deprecation warnings.])
2304 AC_DEFINE([GLIB_DISABLE_DEPRECATION_WARNINGS], [1],
2305 [Define to 1 to disable Glib deprecation warnings.])
2309 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2313 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2316 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2318 dnl Checks for libraries.
2319 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
2320 if test "$pkg_check_gtk" = "no" &&
2321 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2323 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2325 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2329 if test x"$pkg_check_gtk" = xyes; then
2332 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2333 CFLAGS="$CFLAGS $GTK_CFLAGS"
2334 LIBS="$GTK_LIBS $LIBS"
2335 dnl Try to compile a simple GTK program.
2336 AC_MSG_CHECKING([whether GTK compiles])
2340 [[/* Check the Gtk and Glib APIs. */
2341 #include <gtk/gtk.h>
2342 #include <glib-object.h>
2344 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2348 GtkSettings *gs = 0;
2349 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2350 strict C prohibits this. Use gtk_main_iteration to test that the
2351 libraries are there. */
2352 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2353 0, 0, 0, G_CALLBACK (callback), 0))
2354 gtk_main_iteration ();
2357 AC_MSG_RESULT([$GTK_COMPILES])
2358 if test "${GTK_COMPILES}" != "yes"; then
2360 if test "$USE_X_TOOLKIT" != "maybe"; then
2361 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2365 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2366 GTK_OBJ="gtkutil.o $GTK_OBJ"
2367 term_header=$gtk_term_header
2369 if "$PKG_CONFIG" --atleast-version=2.10 gtk+-2.0; then
2372 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2373 closing open displays. This is no problem if you just use
2374 one display, but if you use more than one and close one of them
2384 if test "${HAVE_GTK}" = "yes"; then
2386 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2387 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2388 if test "$with_toolkit_scroll_bars" != no; then
2389 with_toolkit_scroll_bars=yes
2392 dnl Check if we have the old file selection dialog declared and
2393 dnl in the link library. In 2.x it may be in the library,
2394 dnl but not declared if deprecated featured has been selected out.
2395 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2396 HAVE_GTK_FILE_SELECTION=no
2397 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2398 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2399 #include <gtk/gtk.h>])
2400 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2401 AC_CHECK_FUNCS(gtk_file_selection_new)
2404 dnl Same as above for gtk_handle_box.
2405 HAVE_GTK_HANDLE_BOX=no
2406 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2407 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2408 #include <gtk/gtk.h>])
2409 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2410 AC_CHECK_FUNCS(gtk_handle_box_new)
2413 dnl Same as above for gtk_tearoff_menu_item.
2414 HAVE_GTK_TEAROFF_MENU_ITEM=no
2415 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2416 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2417 #include <gtk/gtk.h>])
2418 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2419 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2422 dnl Check for functions introduced in 2.14 and later.
2423 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2424 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2425 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2426 gtk_orientable_set_orientation \
2427 gtk_window_set_has_resize_grip)
2429 term_header=gtkutil.h
2432 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2433 dnl other platforms.
2436 if test "${with_dbus}" = "yes"; then
2437 PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
2438 if test "$HAVE_DBUS" = yes; then
2439 LIBS="$LIBS $DBUS_LIBS"
2440 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2441 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2442 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2444 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2445 dbus_type_is_valid \
2446 dbus_validate_bus_name \
2447 dbus_validate_path \
2448 dbus_validate_interface \
2449 dbus_validate_member)
2455 dnl GSettings has been tested under GNU/Linux only.
2457 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2458 PKG_CHECK_MODULES(GSETTINGS, gio-2.0 >= 2.26, HAVE_GSETTINGS=yes, HAVE_GSETTINGS=no)
2459 if test "$HAVE_GSETTINGS" = "yes"; then
2461 CFLAGS="$CFLAGS $GSETTINGS_CFLAGS"
2463 LIBS="$LIBS $GSETTINGS_LIBS"
2464 AC_MSG_CHECKING([whether GSettings is in gio])
2467 [[/* Check that gsettings really is present. */
2468 #include <glib-object.h>
2469 #include <gio/gio.h>
2472 GSettings *settings;
2473 GVariant *val = g_settings_get_value (settings, "");
2475 [], HAVE_GSETTINGS=no)
2476 AC_MSG_RESULT([$HAVE_GSETTINGS])
2478 if test "$HAVE_GSETTINGS" = "yes"; then
2479 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2480 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2481 SETTINGS_LIBS="$GSETTINGS_LIBS"
2488 dnl GConf has been tested under GNU/Linux only.
2489 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2491 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2492 PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
2493 if test "$HAVE_GCONF" = yes; then
2494 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2495 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2496 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2497 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2501 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2502 PKG_CHECK_MODULES(GOBJECT, gobject-2.0 >= 2.0, HAVE_GOBJECT=yes, HAVE_GOBJECT=no)
2503 if test "$HAVE_GOBJECT" = "yes"; then
2504 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2505 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2507 SAVE_CFLAGS="$CFLAGS"
2509 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2510 LIBS="$SETTINGS_LIBS $LIBS"
2511 CFLAGS="$SAVE_CFLAGS"
2514 AC_SUBST(SETTINGS_CFLAGS)
2515 AC_SUBST(SETTINGS_LIBS)
2518 dnl SELinux is available for GNU/Linux only.
2521 if test "${with_selinux}" = "yes"; then
2522 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2523 if test "$HAVE_LIBSELINUX" = yes; then
2524 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2525 LIBSELINUX_LIBS=-lselinux
2528 AC_SUBST(LIBSELINUX_LIBS)
2532 if test "${with_gnutls}" = "yes" ; then
2533 PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 3.0.0], HAVE_GNUTLS3=yes, HAVE_GNUTLS3=no)
2534 if test "${HAVE_GNUTLS3}" = "yes"; then
2535 AC_DEFINE(HAVE_GNUTLS3, 1, [Define if using GnuTLS v3.])
2538 PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6], HAVE_GNUTLS=yes, HAVE_GNUTLS=no)
2540 if test "${HAVE_GNUTLS}" = "yes"; then
2541 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2544 # Windows loads GnuTLS dynamically
2545 if test "${opsys}" = "mingw32"; then
2550 AC_SUBST(LIBGNUTLS_LIBS)
2551 AC_SUBST(LIBGNUTLS_CFLAGS)
2556 dnl FIXME? Don't auto-detect on NS, but do allow someone to specify
2557 dnl a particular library. This doesn't make much sense?
2558 if test "${with_ns}" = yes && test ${with_file_notification} = yes; then
2559 with_file_notification=no
2562 dnl MS Windows native file monitor is available for mingw32 only.
2563 case $with_file_notification,$opsys in
2564 w32,* | yes,mingw32)
2565 AC_CHECK_HEADER(windows.h)
2566 if test "$ac_cv_header_windows_h" = yes ; then
2567 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2568 NOTIFY_OBJ=w32notify.o
2569 NOTIFY_SUMMARY="yes (w32)"
2573 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2574 dnl has been added in glib 2.24. It has been tested under
2575 dnl GNU/Linux only. We take precedence over inotify, but this makes
2576 dnl only sense when glib has been compiled with inotify support. How
2578 case $with_file_notification,$NOTIFY_OBJ in
2580 PKG_CHECK_MODULES(GFILENOTIFY, gio-2.0 >= 2.24, HAVE_GFILENOTIFY=yes, HAVE_GFILENOTIFY=no)
2581 if test "$HAVE_GFILENOTIFY" = "yes"; then
2582 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2583 NOTIFY_OBJ=gfilenotify.o
2584 NOTIFY_SUMMARY="yes -lgio (gfile)"
2588 dnl inotify is only available on GNU/Linux.
2589 case $with_file_notification,$NOTIFY_OBJ in
2591 AC_CHECK_HEADER(sys/inotify.h)
2592 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2593 AC_CHECK_FUNC(inotify_init1)
2594 if test "$ac_cv_func_inotify_init1" = yes; then
2595 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2596 NOTIFY_OBJ=inotify.o
2597 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2602 case $with_file_notification,$NOTIFY_OBJ in
2603 yes,* | no,* | *,?*) ;;
2604 *) AC_MSG_ERROR([File notification `$with_file_notification' requested but requirements not found.]) ;;
2607 if test -n "$NOTIFY_OBJ"; then
2608 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2610 AC_SUBST(NOTIFY_OBJ)
2611 AC_SUBST(GFILENOTIFY_CFLAGS)
2612 AC_SUBST(GFILENOTIFY_LIBS)
2614 dnl Do not put whitespace before the #include statements below.
2615 dnl Older compilers (eg sunos4 cc) choke on it.
2618 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2619 if test "$with_xaw3d" != no; then
2620 AC_CACHE_VAL(emacs_cv_xaw3d,
2621 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2622 #include <X11/Intrinsic.h>
2623 #include <X11/Xaw3d/Simple.h>]],
2625 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2626 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2627 emacs_cv_xaw3d=no)])
2631 if test $emacs_cv_xaw3d = yes; then
2632 AC_MSG_CHECKING(for xaw3d)
2633 AC_MSG_RESULT([yes; using Lucid toolkit])
2637 AC_DEFINE(HAVE_XAW3D, 1,
2638 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2640 AC_MSG_CHECKING(for xaw3d)
2642 AC_MSG_CHECKING(for libXaw)
2643 AC_CACHE_VAL(emacs_cv_xaw,
2644 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2645 #include <X11/Intrinsic.h>
2646 #include <X11/Xaw/Simple.h>]],
2650 if test $emacs_cv_xaw = yes; then
2651 AC_MSG_RESULT([yes; using Lucid toolkit])
2654 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2655 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2657 AC_MSG_ERROR([No X toolkit could be found.
2658 If you are sure you want Emacs compiled without an X toolkit, pass
2660 to configure. Otherwise, install the development libraries for the toolkit
2661 that you want to use (e.g. Gtk+) and re-run configure.])
2666 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2669 if test "${USE_X_TOOLKIT}" != "none"; then
2670 AC_MSG_CHECKING(X11 toolkit version)
2671 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2672 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2673 [[#if XtSpecificationRelease < 6
2676 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2677 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2678 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2679 AC_MSG_RESULT(6 or newer)
2680 AC_DEFINE(HAVE_X11XTR6, 1,
2681 [Define to 1 if you have the X11R6 or newer version of Xt.])
2682 LIBXTR6="-lSM -lICE"
2684 ## Use libw.a along with X11R6 Xt.
2685 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2688 AC_MSG_RESULT(before 6)
2691 dnl If using toolkit, check whether libXmu.a exists.
2692 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2694 if test x$HAVE_X11XTR6 = xyes; then
2695 LIBS="-lXt -lSM -lICE $LIBS"
2699 AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
2700 test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
2701 dnl ac_cv_lib_Xmu_XmuConvertStandardSelection is also referenced below.
2705 dnl FIXME the logic here seems weird, but this is what cpp was doing.
2706 dnl Why not just test for libxmu in the normal way?
2709 ## These systems don't supply Xmu.
2711 test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
2719 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
2720 if test "${HAVE_X11}" = "yes"; then
2721 if test "${USE_X_TOOLKIT}" != "none"; then
2722 AC_CHECK_LIB(Xext, XShapeQueryExtension)
2727 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2728 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2729 if test -d /usr/include/openmotif; then
2730 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2731 emacs_cv_openmotif=yes
2732 case "$canonical" in
2733 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2734 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2737 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2740 emacs_cv_openmotif=no
2742 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2743 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2744 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2747 Motif version prior to 2.1.
2749 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2750 if test $emacs_cv_motif_version_2_1 = yes; then
2751 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2752 if test x$emacs_cv_openmotif = xyes; then
2753 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2756 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2757 # We put this in CFLAGS temporarily to precede other -I options
2758 # that might be in CFLAGS temporarily.
2759 # We put this in CPPFLAGS where it precedes the other -I options.
2760 OLD_CPPFLAGS=$CPPFLAGS
2762 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2763 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2764 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2766 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2767 if test $emacs_cv_lesstif = yes; then
2768 # Make sure this -I option remains in CPPFLAGS after it is set
2769 # back to REAL_CPPFLAGS.
2770 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2771 # have those other -I options anyway. Ultimately, having this
2772 # directory ultimately in CPPFLAGS will be enough.
2773 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2774 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2777 CPPFLAGS=$OLD_CPPFLAGS
2780 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2781 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2784 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2785 dnl using Motif or Xaw3d is available, and unless
2786 dnl --with-toolkit-scroll-bars=no was specified.
2788 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2789 [Define to 1 if we should use toolkit scroll bars.])dnl
2790 USE_TOOLKIT_SCROLL_BARS=no
2791 if test "${with_toolkit_scroll_bars}" != "no"; then
2792 if test "${USE_X_TOOLKIT}" != "none"; then
2793 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2794 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2796 USE_TOOLKIT_SCROLL_BARS=yes
2797 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2798 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2799 USE_TOOLKIT_SCROLL_BARS=yes
2801 elif test "${HAVE_GTK}" = "yes"; then
2802 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2803 USE_TOOLKIT_SCROLL_BARS=yes
2804 elif test "${HAVE_NS}" = "yes"; then
2805 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2806 USE_TOOLKIT_SCROLL_BARS=yes
2807 elif test "${HAVE_W32}" = "yes"; then
2808 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2809 USE_TOOLKIT_SCROLL_BARS=yes
2813 dnl See if XIM is available.
2814 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2815 #include <X11/Xlib.h>
2816 #include <X11/Xresource.h>]],
2817 [[XIMProc callback;]])],
2819 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2822 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2824 if test "${with_xim}" != "no"; then
2825 AC_DEFINE(USE_XIM, 1,
2826 [Define to 1 if we should use XIM, if it is available.])
2830 if test "${HAVE_XIM}" != "no"; then
2832 if test "$GCC" = yes; then
2833 CFLAGS="$CFLAGS --pedantic-errors"
2835 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2836 #include <X11/Xlib.h>
2837 #include <X11/Xresource.h>]],
2843 XPointer *client_data;
2845 /* If we're not using GCC, it's probably not XFree86, and this is
2846 probably right, but we can't use something like --pedantic-errors. */
2847 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2848 char*, XIMProc, XPointer*);
2850 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2852 [emacs_cv_arg6_star=yes])
2853 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2854 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2855 either XPointer or XPointer*.])dnl
2856 if test "$emacs_cv_arg6_star" = yes; then
2857 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2859 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2864 ### Start of font-backend (under any platform) section.
2865 # (nothing here yet -- this is a placeholder)
2866 ### End of font-backend (under any platform) section.
2868 ### Start of font-backend (under X11) section.
2869 if test "${HAVE_X11}" = "yes"; then
2870 PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
2872 ## Use -lXft if available, unless `--with-xft=no'.
2874 if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2877 if test "x${with_xft}" != "xno"; then
2879 PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
2880 ## Because xftfont.c uses XRenderQueryExtension, we also
2881 ## need to link to -lXrender.
2883 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2884 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2885 OLD_CPPFLAGS="$CPPFLAGS"
2886 OLD_CFLAGS="$CFLAGS"
2888 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2889 CFLAGS="$CFLAGS $XFT_CFLAGS"
2890 XFT_LIBS="-lXrender $XFT_LIBS"
2891 LIBS="$XFT_LIBS $LIBS"
2892 AC_CHECK_HEADER(X11/Xft/Xft.h,
2893 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
2894 [[#include <X11/X.h>]])
2896 if test "${HAVE_XFT}" = "yes"; then
2897 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2899 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2901 CPPFLAGS="$OLD_CPPFLAGS"
2902 CFLAGS="$OLD_CFLAGS"
2904 fi # "${HAVE_XFT}" = "yes"
2905 fi # "$HAVE_XFT" != no
2906 fi # "x${with_xft}" != "xno"
2908 ## We used to allow building with FreeType and without Xft.
2909 ## However, the ftx font backend driver is not in good shape.
2910 if test "$HAVE_XFT" != "yes"; then
2911 dnl For the "Does Emacs use" message at the end.
2915 dnl Strict linkers fail with
2916 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2917 dnl if -lfreetype is not specified.
2918 dnl The following is needed to set FREETYPE_LIBS.
2919 PKG_CHECK_MODULES(FREETYPE, freetype2, HAVE_FREETYPE=yes,
2922 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2926 if test "${HAVE_FREETYPE}" = "yes"; then
2927 AC_DEFINE(HAVE_FREETYPE, 1,
2928 [Define to 1 if using the freetype and fontconfig libraries.])
2929 if test "${with_libotf}" != "no"; then
2930 PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
2932 if test "$HAVE_LIBOTF" = "yes"; then
2933 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2934 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2935 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2936 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2937 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2938 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2939 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2943 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2944 dnl Does the new font backend require it, or can it work without it?
2948 if test "${HAVE_LIBOTF}" = yes; then
2949 if test "${with_m17n_flt}" != "no"; then
2950 PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
2951 if test "$HAVE_M17N_FLT" = "yes"; then
2952 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2963 ### End of font-backend (under X11) section.
2965 AC_SUBST(FREETYPE_CFLAGS)
2966 AC_SUBST(FREETYPE_LIBS)
2967 AC_SUBST(FONTCONFIG_CFLAGS)
2968 AC_SUBST(FONTCONFIG_LIBS)
2969 AC_SUBST(LIBOTF_CFLAGS)
2970 AC_SUBST(LIBOTF_LIBS)
2971 AC_SUBST(M17N_FLT_CFLAGS)
2972 AC_SUBST(M17N_FLT_LIBS)
2974 ### Use -lXpm if available, unless `--with-xpm=no'.
2975 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
2976 ### In the Cygwin-w32 build, we need to use /usr/include/noX/X11/xpm.h
2977 ### rather than /usr/include/X11/xpm.h, so we set CPPFLAGS (and
2978 ### LDFLAGS) accordingly.
2981 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
2982 if test "${with_xpm}" != "no"; then
2983 SAVE_CPPFLAGS="$CPPFLAGS"
2984 SAVE_LDFLAGS="$LDFLAGS"
2985 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
2986 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
2987 AC_CHECK_HEADER(X11/xpm.h,
2988 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
2989 if test "${HAVE_XPM}" = "yes"; then
2990 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2991 AC_EGREP_CPP(no_return_alloc_pixels,
2992 [#include "X11/xpm.h"
2993 #ifndef XpmReturnAllocPixels
2994 no_return_alloc_pixels
2996 ], HAVE_XPM=no, HAVE_XPM=yes)
2998 if test "${HAVE_XPM}" = "yes"; then
2999 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
3003 CPPFLAGS="$SAVE_CPPFLAGS"
3004 LDFLAGS="$SAVE_LDFLAGS"
3009 if test "${HAVE_XPM}" = "yes"; then
3010 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3015 if test "${HAVE_X11}" = "yes"; then
3016 dnl Avoid Xpm on AIX unless requested, as it crashes; see Bug#17598.
3017 test "$opsys$with_xpm_set" = aix4-2 && with_xpm=no
3019 if test "${with_xpm}" != "no"; then
3020 AC_CHECK_HEADER(X11/xpm.h,
3021 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
3022 if test "${HAVE_XPM}" = "yes"; then
3023 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3024 AC_EGREP_CPP(no_return_alloc_pixels,
3025 [#include "X11/xpm.h"
3026 #ifndef XpmReturnAllocPixels
3027 no_return_alloc_pixels
3029 ], HAVE_XPM=no, HAVE_XPM=yes)
3031 if test "${HAVE_XPM}" = "yes"; then
3039 if test "${HAVE_XPM}" = "yes"; then
3040 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3042 elif test "$opsys,$LUCID_LIBW" = aix4-2,-lXaw; then
3043 dnl AIX -lXaw needs -lXpm linked too; see Bug#17598 Message#152.
3048 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
3049 ### slightly different requirements wrt image libraries (it doesn't
3050 ### use -lXpm because it loads the xpm shared library dynamically at
3052 if test "${opsys}" = "mingw32"; then
3053 if test "${with_xpm}" != "no"; then
3054 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
3058 if test "${HAVE_XPM}" = "yes"; then
3059 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3065 ### Use -ljpeg if available, unless `--with-jpeg=no'.
3066 ### mingw32 doesn't use -ljpeg, since it loads the library dynamically.
3069 if test "${opsys}" = "mingw32"; then
3070 if test "${with_jpeg}" != "no"; then
3071 dnl Checking for jpeglib.h can lose because of a redefinition of
3073 AC_CHECK_HEADER(jerror.h, HAVE_JPEG=yes, HAVE_JPEG=no)
3075 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
3076 if test "${HAVE_JPEG}" = "yes"; then
3077 AC_DEFINE(HAVE_JPEG)
3078 AC_EGREP_CPP([version 6b or later],
3079 [#include <jpeglib.h>
3080 #if JPEG_LIB_VERSION >= 62
3084 [AC_DEFINE(HAVE_JPEG)],
3085 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
3088 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3089 if test "${with_jpeg}" != "no"; then
3090 dnl Checking for jpeglib.h can lose because of a redefinition of
3092 AC_CHECK_HEADER(jerror.h,
3093 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
3096 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
3097 if test "${HAVE_JPEG}" = "yes"; then
3098 AC_DEFINE(HAVE_JPEG)
3099 AC_EGREP_CPP([version 6b or later],
3100 [#include <jpeglib.h>
3101 #if JPEG_LIB_VERSION >= 62
3105 [AC_DEFINE(HAVE_JPEG)],
3106 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
3109 if test "${HAVE_JPEG}" = "yes"; then
3115 ### Use -lpng if available, unless `--with-png=no'.
3116 ### mingw32 doesn't use -lpng, since it loads the library dynamically.
3119 if test "${opsys}" = "mingw32"; then
3120 if test "${with_png}" != "no"; then
3121 AC_CHECK_HEADER(png.h, HAVE_PNG=yes, HAVE_PNG=no)
3123 if test "${HAVE_PNG}" = "yes"; then
3124 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
3126 AC_CHECK_DECL(png_longjmp,
3128 [AC_DEFINE(PNG_DEPSTRUCT, [],
3129 [Define to empty to suppress deprecation warnings when building
3130 with --enable-gcc-warnings and with libpng versions before 1.5,
3131 which lack png_longjmp.])],
3132 [[#ifdef HAVE_LIBPNG_PNG_H
3133 # include <libpng/png.h>
3139 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3140 if test "${with_png}" != "no"; then
3141 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
3142 # in /usr/include/libpng.
3143 AC_CHECK_HEADERS(png.h libpng/png.h, break)
3144 if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
3145 AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
3149 if test "${HAVE_PNG}" = "yes"; then
3150 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library.])
3152 dnl Some systems, eg NetBSD 6, only provide eg "libpng16", not "libpng".
3153 lpng=`libpng-config --libs 2> /dev/null`
3158 LIBPNG="$lpng -lz -lm"
3160 AC_CHECK_DECL(png_longjmp,
3162 [AC_DEFINE(PNG_DEPSTRUCT, [],
3163 [Define to empty to suppress deprecation warnings when building
3164 with --enable-gcc-warnings and with libpng versions before 1.5,
3165 which lack png_longjmp.])],
3166 [[#ifdef HAVE_LIBPNG_PNG_H
3167 # include <libpng/png.h>
3178 if test "${with_zlib}" != "no"; then
3180 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
3182 case $ac_cv_search_inflateEnd in
3183 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3186 if test "${HAVE_ZLIB}" = "yes"; then
3187 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3188 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3189 if test "${opsys}" = "mingw32"; then
3196 ### Use -ltiff if available, unless `--with-tiff=no'.
3197 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3200 if test "${opsys}" = "mingw32"; then
3201 if test "${with_tiff}" != "no"; then
3202 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3204 if test "${HAVE_TIFF}" = "yes"; then
3205 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3207 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3208 if test "${with_tiff}" != "no"; then
3209 AC_CHECK_HEADER(tiffio.h,
3211 # At least one tiff package requires the jpeg library.
3212 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3213 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3216 if test "${HAVE_TIFF}" = "yes"; then
3217 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3218 dnl FIXME -lz -lm, as per libpng?
3224 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
3225 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3228 if test "${opsys}" = "mingw32"; then
3229 if test "${with_gif}" != "no"; then
3230 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3232 if test "${HAVE_GIF}" = "yes"; then
3233 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3235 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3236 || test "${HAVE_W32}" = "yes"; then
3237 AC_CHECK_HEADER(gif_lib.h,
3238 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3239 # Earlier versions can crash Emacs, but version 5.0 removes EGifPutExtensionLast.
3240 [AC_CHECK_LIB(gif, GifMakeMapObject, HAVE_GIF=yes,
3241 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])])
3243 if test "$HAVE_GIF" = yes; then
3245 elif test "$HAVE_GIF" = maybe; then
3246 # If gif_lib.h but no libgif, try libungif.
3247 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3248 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3251 if test "${HAVE_GIF}" = "yes"; then
3252 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3257 dnl Check for required libraries.
3258 if test "${HAVE_X11}" = "yes"; then
3261 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3262 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3263 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3264 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3265 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3266 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3267 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3268 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3269 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3270 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3272 if test "X${MISSING}" != X; then
3273 AC_MSG_ERROR([The following required libraries were not found:
3275 Maybe some development libraries/packages are missing?
3276 If you don't want to link with them give
3278 as options to configure])
3282 ### Use -lgpm if available, unless `--with-gpm=no'.
3285 if test "${with_gpm}" != "no"; then
3286 AC_CHECK_HEADER(gpm.h,
3287 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3289 if test "${HAVE_GPM}" = "yes"; then
3290 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3296 dnl Check for malloc/malloc.h on darwin
3297 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3300 ### Use NeXTstep API to implement GUI.
3301 if test "${HAVE_NS}" = "yes"; then
3302 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
3303 if test "${NS_IMPL_COCOA}" = "yes"; then
3304 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
3306 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3307 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3308 # See also .m.o rule in Makefile.in */
3309 # FIXME: are all these flags really needed? Document here why. */
3310 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3311 ## Extra CFLAGS applied to src/*.m files.
3312 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3317 ### Use session management (-lSM -lICE) if available
3320 if test "${HAVE_X11}" = "yes"; then
3321 AC_CHECK_HEADER(X11/SM/SMlib.h,
3322 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3324 if test "${HAVE_X_SM}" = "yes"; then
3325 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3329 *) LIBS="$LIBXSM $LIBS" ;;
3335 ### Use XRandr (-lXrandr) if available
3337 if test "${HAVE_X11}" = "yes"; then
3338 XRANDR_REQUIRED=1.2.2
3339 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3340 PKG_CHECK_MODULES(XRANDR, $XRANDR_MODULES, HAVE_XRANDR=yes, HAVE_XRANDR=no)
3341 if test $HAVE_XRANDR = no; then
3342 # Test old way in case pkg-config doesn't have it (older machines).
3343 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3344 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)])
3345 if test $HAVE_XRANDR = yes; then
3346 XRANDR_LIBS=-lXrandr
3347 AC_SUBST(XRANDR_LIBS)
3350 if test $HAVE_XRANDR = yes; then
3351 SAVE_CFLAGS="$CFLAGS"
3353 CFLAGS="$XRANDR_CFLAGS $CFLAGS"
3354 LIBS="$XRANDR_LIBS $LIBS"
3355 AC_CHECK_FUNCS(XRRGetOutputPrimary XRRGetScreenResourcesCurrent)
3356 CFLAGS="$SAVE_CFLAGS"
3359 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3363 ### Use Xinerama (-lXinerama) if available
3365 if test "${HAVE_X11}" = "yes"; then
3366 XINERAMA_REQUIRED=1.0.2
3367 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3368 PKG_CHECK_MODULES(XINERAMA, $XINERAMA_MODULES, HAVE_XINERAMA=yes,
3370 if test $HAVE_XINERAMA = no; then
3371 # Test old way in case pkg-config doesn't have it (older machines).
3372 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3373 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3374 if test $HAVE_XINERAMA = yes; then
3375 XINERAMA_LIBS=-lXinerama
3376 AC_SUBST(XINERAMA_LIBS)
3379 if test $HAVE_XINERAMA = yes; then
3380 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3385 ### Use libxml (-lxml2) if available
3386 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3388 if test "${with_xml2}" != "no"; then
3389 ### I'm not sure what the version number should be, so I just guessed.
3390 PKG_CHECK_MODULES(LIBXML2, libxml-2.0 > 2.6.17, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
3391 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3392 if test "${HAVE_LIBXML2}" != "yes" -a "$opsys" = "darwin"; then
3393 SAVE_CPPFLAGS="$CPPFLAGS"
3394 CPPFLAGS="$CPPFLAGS -I$xcsdkdir/usr/include/libxml2"
3395 AC_CHECK_HEADER(libxml/HTMLparser.h,
3396 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3397 [#include <libxml/HTMLparser.h>])])
3398 CPPFLAGS="$SAVE_CPPFLAGS"
3399 if test "${HAVE_LIBXML2}" = "yes"; then
3400 LIBXML2_CFLAGS="-I'$xcsdkdir/usr/include/libxml2'"
3401 LIBXML2_LIBS="-lxml2"
3404 if test "${HAVE_LIBXML2}" = "yes"; then
3405 if test "${opsys}" != "mingw32"; then
3406 LIBS="$LIBXML2_LIBS $LIBS"
3407 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
3411 if test "${HAVE_LIBXML2}" = "yes"; then
3412 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3419 AC_SUBST(LIBXML2_LIBS)
3420 AC_SUBST(LIBXML2_CFLAGS)
3422 # If netdb.h doesn't declare h_errno, we must declare it by hand.
3423 # On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
3424 if test "${opsys}" = "mingw32"; then
3425 emacs_cv_netdb_declares_h_errno=yes
3427 AC_CACHE_CHECK(whether netdb declares h_errno,
3428 emacs_cv_netdb_declares_h_errno,
3429 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
3430 [[return h_errno;]])],
3431 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
3432 if test $emacs_cv_netdb_declares_h_errno = yes; then
3433 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
3436 # sqrt and other floating-point functions such as fmod and frexp
3437 # are found in -lm on most systems, but mingw32 doesn't use -lm.
3438 if test "${opsys}" != "mingw32"; then
3439 AC_CHECK_LIB(m, sqrt)
3442 # Check for mail-locking functions in a "mail" library. Probably this should
3443 # have the same check as for liblockfile below.
3444 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
3445 if test $have_mail = yes; then
3447 LIBS="$LIBS_MAIL $LIBS"
3448 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
3452 dnl Debian, at least:
3453 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
3454 if test $have_lockfile = yes; then
3455 LIBS_MAIL=-llockfile
3456 LIBS="$LIBS_MAIL $LIBS"
3457 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
3459 # If we have the shared liblockfile, assume we must use it for mail
3460 # locking (e.g. Debian). If we couldn't link against liblockfile
3461 # (no liblockfile.a installed), ensure that we don't need to.
3462 dnl This works for files generally, not just executables.
3463 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3464 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
3465 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
3466 if test $ac_cv_prog_liblockfile = yes; then
3467 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3468 This probably means that movemail could lose mail.
3469 There may be a `development' package to install containing liblockfile.])
3472 AC_CHECK_HEADERS_ONCE(maillock.h)
3475 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3476 ## interlock access to the mail spool. The alternative is a lock file named
3477 ## /usr/spool/mail/$USER.lock.
3480 aix4-2) mail_lock="lockf" ;;
3482 gnu|freebsd|dragonfly|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
3484 ## On GNU/Linux systems, both methods are used by various mail programs.
3485 ## I assume most people are using newer mailers that have heard of flock.
3486 ## Change this if you need to.
3487 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
3488 ## configure gets the right answers, and that means *NOT* using flock.
3489 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3490 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
3491 ## Debian maintainer hasn't provided a clean fix for Emacs.
3492 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
3493 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3494 ## correct logic. -- fx
3495 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3496 ## liblockfile is a Free Software replacement for libmail, used on
3497 ## Debian systems and elsewhere. -rfr.
3500 if test $have_mail = yes || test $have_lockfile = yes; then
3501 test $ac_cv_header_maillock_h = yes && mail_lock=no
3506 mail_lock="none-needed" ;;
3510 case "$mail_lock" in
3511 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3513 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3517 *) BLESSMAIL_TARGET="need-blessmail" ;;
3519 AC_SUBST(BLESSMAIL_TARGET)
3522 AC_CHECK_FUNCS(accept4 fchdir gethostname \
3523 getrusage get_current_dir_name \
3525 select getpagesize setlocale \
3526 getrlimit setrlimit shutdown getaddrinfo \
3527 strsignal setitimer \
3528 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
3529 gai_strerror getline getdelim sync \
3530 getpwent endpwent getgrent endgrent \
3532 cfmakeraw cfsetspeed copysign __executable_start log2)
3534 dnl No need to check for aligned_alloc and posix_memalign if using
3535 dnl gmalloc.o, as it supplies them. Don't use these functions on
3536 dnl Darwin as they are incompatible with unexmacosx.c.
3537 if test -z "$GMALLOC_OBJ" && test "$opsys" != darwin; then
3538 AC_CHECK_FUNCS([aligned_alloc posix_memalign], [break])
3541 ## Eric Backus <ericb@lsid.hp.com> says, HP-UX 9.x on HP 700 machines
3542 ## has a broken `rint' in some library versions including math library
3543 ## version number A.09.05.
3544 ## You can fix the math library by installing patch number PHSS_4630.
3545 ## But we can fix it more reliably for Emacs by just not using rint.
3546 ## We also skip HAVE_RANDOM - see comments in src/conf_post.h.
3549 *) AC_CHECK_FUNCS(random rint) ;;
3552 dnl Cannot use AC_CHECK_FUNCS
3553 AC_CACHE_CHECK([for __builtin_unwind_init],
3554 emacs_cv_func___builtin_unwind_init,
3555 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3556 emacs_cv_func___builtin_unwind_init=yes,
3557 emacs_cv_func___builtin_unwind_init=no)])
3558 if test $emacs_cv_func___builtin_unwind_init = yes; then
3559 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3560 [Define to 1 if you have the `__builtin_unwind_init' function.])
3563 AC_CHECK_HEADERS_ONCE(sys/un.h)
3568 AC_CHECK_FUNCS(grantpt)
3570 # PTY-related GNU extensions.
3571 AC_CHECK_FUNCS(getpt posix_openpt)
3573 # Check this now, so that we will NOT find the above functions in ncurses.
3574 # That is because we have not set up to link ncurses in lib-src.
3575 # It's better to believe a function is not available
3576 # than to expect to find it in ncurses.
3577 # Also we need tputs and friends to be able to build at all.
3578 AC_MSG_CHECKING([for library containing tputs])
3579 # Run a test program that contains a call to tputs, a call that is
3580 # never executed. This tests whether a pre-'main' dynamic linker
3581 # works with the library. It's too much trouble to actually call
3582 # tputs in the test program, due to portability hassles. When
3583 # cross-compiling, assume the test program will run if it links.
3584 AC_DEFUN([tputs_link_source], [
3586 [[extern void tputs (const char *, int, int (*)(int));
3587 int main (int argc, char **argv)
3590 tputs (argv[0], 0, 0);
3594 if test "${opsys}" = "mingw32"; then
3597 # Maybe curses should be tried earlier?
3598 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3599 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3601 if test -z "$tputs_library"; then
3605 LIBS_TERMCAP=-l$tputs_library
3607 LIBS="$LIBS_TERMCAP $LIBS"
3609 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3610 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3612 if test "X$msg" != Xno; then
3617 AC_MSG_RESULT([$msg])
3618 if test "X$msg" = Xno; then
3619 AC_MSG_ERROR([The required function `tputs' was not found in any library.
3620 The following libraries were tried (in order):
3621 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3622 Please try installing whichever of these libraries is most appropriate
3623 for your system, together with its header files.
3624 For example, a libncurses-dev(el) or similar package.])
3627 ## Use termcap instead of terminfo?
3628 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3630 ## FIXME? In the cases below where we unconditionally set
3631 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3632 ## if that was found above to have tputs.
3633 ## Should we use the gnu* logic everywhere?
3635 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3636 ## The ncurses library has been moved out of the System framework in
3637 ## Mac OS X 10.2. So if configure detects it, set the command-line
3638 ## option to use it.
3639 darwin) LIBS_TERMCAP="-lncurses" ;;
3641 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3644 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3645 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3646 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3647 [[#if __FreeBSD_version < 400000
3650 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3652 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3654 if test $emacs_cv_freebsd_terminfo = yes; then
3655 LIBS_TERMCAP="-lncurses"
3658 LIBS_TERMCAP="-ltermcap"
3668 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3670 LIBS_TERMCAP="-ltermcap"
3674 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
3676 ## hpux: Make sure we get select from libc rather than from libcurses
3677 ## because libcurses on HPUX 10.10 has a broken version of select.
3678 ## We used to use -lc -lcurses, but this may be cleaner.
3679 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3680 # set that way, now it uses the default). Isn't this a contradiction?
3681 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3685 TERMCAP_OBJ=tparam.o
3686 if test $TERMINFO = yes; then
3687 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3688 TERMCAP_OBJ=terminfo.o
3690 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
3691 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
3693 AC_SUBST(LIBS_TERMCAP)
3694 AC_SUBST(TERMCAP_OBJ)
3697 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3698 # On Darwin, res_init appears not to be useful: see bug#562 and
3699 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3702 if test $opsys != darwin; then
3704 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3705 #include <arpa/nameser.h>
3706 #include <resolv.h>]],
3707 [[return res_init();]])],
3708 have_res_init=yes, have_res_init=no)
3709 if test "$have_res_init" = no; then
3711 LIBS="$LIBS -lresolv"
3712 AC_MSG_CHECKING(for res_init with -lresolv)
3713 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3714 #include <arpa/nameser.h>
3715 #include <resolv.h>]],
3716 [[return res_init();]])],
3717 have_res_init=yes, have_res_init=no)
3718 AC_MSG_RESULT($have_res_init)
3719 if test "$have_res_init" = yes ; then
3725 if test "$have_res_init" = yes; then
3726 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3730 # Do we need the Hesiod library to provide the support routines?
3731 dnl FIXME? Should we be skipping this on Darwin too?
3733 if test "$with_hesiod" != no ; then
3734 # Don't set $LIBS here -- see comments above. FIXME which comments?
3735 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3736 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3737 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3738 if test "$resolv" = yes ; then
3743 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3744 hesiod=yes, :, $RESOLVLIB)])
3746 if test x"$hesiod" = xyes; then
3752 # Do we need libresolv (due to res_init or Hesiod)?
3753 if test "$resolv" = yes && test $opsys != darwin; then
3760 # These tell us which Kerberos-related libraries to use.
3767 if test "${with_kerberos}" != no; then
3768 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3769 if test $have_com_err = yes; then
3770 COM_ERRLIB=-lcom_err
3771 LIBS="$COM_ERRLIB $LIBS"
3773 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3774 if test $have_crypto = yes; then
3776 LIBS="$CRYPTOLIB $LIBS"
3778 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3779 if test $have_k5crypto = yes; then
3780 CRYPTOLIB=-lk5crypto
3781 LIBS="$CRYPTOLIB $LIBS"
3783 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3784 if test $have_krb5=yes; then
3786 LIBS="$KRB5LIB $LIBS"
3788 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3789 if test "${with_kerberos5}" = no; then
3790 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3791 if test $have_des425 = yes; then
3793 LIBS="$DESLIB $LIBS"
3795 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3796 if test $have_des = yes; then
3798 LIBS="$DESLIB $LIBS"
3801 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3802 if test $have_krb4 = yes; then
3804 LIBS="$KRB4LIB $LIBS"
3806 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3807 if test $have_krb = yes; then
3809 LIBS="$KRB4LIB $LIBS"
3814 if test "${with_kerberos5}" != no; then
3815 AC_CHECK_HEADERS(krb5.h,
3816 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3817 [#include <krb5.h>])])
3819 AC_CHECK_HEADERS(krb.h,,
3820 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3821 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3823 AC_CHECK_HEADERS(com_err.h)
3826 AC_SUBST(COM_ERRLIB)
3832 AC_CHECK_HEADERS(valgrind/valgrind.h)
3834 AC_CHECK_FUNCS_ONCE(tzset)
3835 AC_MSG_CHECKING(whether localtime caches TZ)
3836 AC_CACHE_VAL(emacs_cv_localtime_cache,
3837 [if test x$ac_cv_func_tzset = xyes; then
3838 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3839 char TZ_GMT0[] = "TZ=GMT0";
3840 char TZ_PST8[] = "TZ=PST8";
3843 time_t now = time ((time_t *) 0);
3844 int hour_GMT0, hour_unset;
3845 if (putenv (TZ_GMT0) != 0)
3847 hour_GMT0 = localtime (&now)->tm_hour;
3849 hour_unset = localtime (&now)->tm_hour;
3850 if (putenv (TZ_PST8) != 0)
3852 if (localtime (&now)->tm_hour == hour_GMT0)
3855 if (localtime (&now)->tm_hour != hour_unset)
3858 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3859 [# If we have tzset, assume the worst when cross-compiling.
3860 emacs_cv_localtime_cache=yes])
3862 # If we lack tzset, report that localtime does not cache TZ,
3863 # since we can't invalidate the cache if we don't have tzset.
3864 emacs_cv_localtime_cache=no
3866 AC_MSG_RESULT($emacs_cv_localtime_cache)
3867 if test $emacs_cv_localtime_cache = yes; then
3868 AC_DEFINE(LOCALTIME_CACHE, 1,
3869 [Define to 1 if localtime caches TZ.])
3873 AC_CHECK_FUNC(socket, , ok_so_far=no)
3874 if test $ok_so_far = yes; then
3875 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3877 if test $ok_so_far = yes; then
3878 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3880 if test $ok_so_far = yes; then
3881 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3882 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3883 [Define to 1 if you have inet sockets.])
3886 dnl Check for a Solaris 2.4 vfork bug that Autoconf misses (through 2.69).
3887 dnl This can be removed once we assume Autoconf 2.70.
3889 *-solaris2.4 | *-solaris2.4.*)
3890 dnl Disable the Autoconf-generated vfork test.
3891 : ${ac_cv_func_vfork_works=no};;
3896 AC_CHECK_FUNCS(snprintf)
3898 dnl Check this late. It depends on what other libraries (lrsvg, Gtk+ etc)
3903 CFLAGS="$CFLAGS $GFILENOTIFY_CFLAGS"
3904 LIBS="$LIBS $GFILENOTIFY_LIBS"
3905 AC_MSG_CHECKING([whether GLib is linked in])
3906 AC_LINK_IFELSE([AC_LANG_PROGRAM(
3909 [[g_print ("Hello world");]])],
3912 AC_MSG_RESULT([$links_glib])
3913 if test "${links_glib}" = "yes"; then
3914 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
3915 if test "$HAVE_NS" = no;then
3923 dnl Adapted from Haible's version.
3924 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3925 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3926 [[char* cs = nl_langinfo(CODESET);]])],
3927 emacs_cv_langinfo_codeset=yes,
3928 emacs_cv_langinfo_codeset=no)
3930 if test $emacs_cv_langinfo_codeset = yes; then
3931 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3932 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3937 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3938 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3939 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3940 if test "$emacs_cv_c_restrict_arr" = yes; then
3941 AC_DEFINE(__restrict_arr, __restrict,
3942 [Define to compiler's equivalent of C99 restrict keyword in array
3943 declarations. Define as empty for no equivalent.])
3946 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3947 dnl how the tty code is related to POSIX and/or other versions of termios.
3948 dnl The following looks like a useful start.
3950 dnl AC_SYS_POSIX_TERMIOS
3951 dnl if test $ac_cv_sys_posix_termios = yes; then
3952 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3953 dnl and macros for terminal control.])
3954 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3957 dnl Turned on June 1996 supposing nobody will mind it.
3958 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
3959 if test "${opsys}" != "mingw32"; then
3960 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3961 in the full name stands for the login id.])
3964 dnl Every platform that uses configure supports this.
3965 dnl There is a create-lockfiles option you can
3966 dnl customize if you do not want the lock files to be written.
3967 dnl So it is not clear that this #define still needs to exist.
3968 AC_DEFINE(CLASH_DETECTION, 1, [Define if you want lock files to be written,
3969 so that Emacs can tell instantly when you try to modify a file that
3970 someone else has modified in his/her Emacs.])
3972 dnl Everybody supports this, except MS.
3973 dnl Seems like the kind of thing we should be testing for, though.
3974 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3975 if test "${opsys}" != "mingw32"; then
3976 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3979 dnl Everybody supports this, except MS-DOS.
3980 dnl Seems like the kind of thing we should be testing for, though.
3981 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3982 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3983 4.2-compatible sockets.])
3985 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3987 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
3988 a null file, or a data sink.])
3989 if test "${opsys}" = "mingw32"; then
3990 AC_DEFINE(NULL_DEVICE, ["NUL:"])
3992 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
3995 if test "${opsys}" = "mingw32"; then
4000 AC_DEFINE_UNQUOTED(SEPCHAR, ['$SEPCHAR'], [Character that separates PATH elements.])
4001 dnl This is for MinGW, and is used in test/automated/Makefile.in.
4002 dnl The MSYS Bash has heuristics for replacing ':' with ';' when it
4003 dnl decides that a command-line argument to be passed to a MinGW program
4004 dnl is a PATH-style list of directories. But that heuristics plays it
4005 dnl safe, and only does the replacement when it is _absolutely_ sure it
4006 dnl sees a colon-separated list of file names; e.g. ":." is left alone,
4007 dnl which breaks in-tree builds. So we do this manually instead.
4008 dnl Note that we cannot rely on PATH_SEPARATOR, as that one will always
4009 dnl be computed as ':' in MSYS Bash.
4012 dnl Everybody supports this, except MS-DOS.
4013 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
4015 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
4018 AC_DEFINE(DIRECTORY_SEP, ['/'],
4019 [Character that separates directories in a file name.])
4021 if test "${opsys}" = "mingw32"; then
4022 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
4023 [Returns true if character is a device separator.])
4025 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
4026 [Returns true if character is a directory separator.])
4028 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
4029 [Returns true if character is any form of separator.])
4031 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
4032 [Returns true if character is a device separator.])
4034 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
4035 [Returns true if character is a directory separator.])
4037 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
4038 [Returns true if character is any form of separator.])
4041 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
4045 dnl Unfortunately without libXmu we cannot support EditRes.
4046 if test x$ac_cv_lib_Xmu_XmuConvertStandardSelection != xyes; then
4047 AC_DEFINE(NO_EDITRES, 1)
4052 dnl Assar Westerlund <assar@sics.se> says this is necessary for
4053 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
4054 AC_DEFINE(NO_EDITRES, 1)
4060 irix6-5 | sol2* | unixware )
4061 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
4062 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
4063 dnl need the constant to dimension an array. So wire in the appropriate
4065 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
4069 emacs_broken_SIGIO=no
4072 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
4073 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
4074 hpux* | irix6-5 | openbsd | sol2* | unixware )
4075 emacs_broken_SIGIO=yes
4079 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
4080 dnl the way this system works, libc functions that return malloced
4081 dnl memory use the libc malloc implementation. Calling xfree or
4082 dnl xrealloc on the results of such functions results in a crash.
4084 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
4085 dnl but that does not currently work on this system.
4087 dnl It is possible to completely override the malloc implementation on
4088 dnl AIX, but that involves putting the malloc functions in a shared
4089 dnl library and setting the MALLOCTYPE environment variable to point to
4090 dnl that shared library.
4092 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
4093 dnl to avoid a crash just use the Emacs implementation for that function.
4095 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
4096 dnl of this file, so that we do not check for get_current_dir_name
4097 dnl on AIX. But that might be fragile if something else ends
4098 dnl up testing for get_current_dir_name as a dependency.
4099 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
4100 get_current_dir_name should not be used.])
4104 dnl Circumvent a bug in FreeBSD. In the following sequence of
4105 dnl writes/reads on a PTY, read(2) returns bogus data:
4107 dnl write(2) 1022 bytes
4108 dnl write(2) 954 bytes, get EAGAIN
4109 dnl read(2) 1024 bytes in process_read_output
4110 dnl read(2) 11 bytes in process_read_output
4112 dnl That is, read(2) returns more bytes than have ever been written
4113 dnl successfully. The 1033 bytes read are the 1022 bytes written
4114 dnl successfully after processing (for example with CRs added if the
4115 dnl terminal is set up that way which it is here). The same bytes will
4116 dnl be seen again in a later read(2), without the CRs.
4117 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
4118 work around an issue when reading from a PTY.])
4124 dnl FIXME Can't we test if this exists (eg /proc/$$)?
4125 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
4130 darwin | dragonfly | freebsd | netbsd | openbsd )
4131 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
4132 close a pty to make it a controlling terminal (it is already a
4133 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
4137 dnl FIXME Surely we can test for this rather than hard-code it.
4139 netbsd | openbsd) sound_device="/dev/audio" ;;
4140 *) sound_device="/dev/dsp" ;;
4144 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
4145 [Name of the default sound device.])
4148 dnl Emacs can read input using SIGIO and buffering characters itself,
4149 dnl or using CBREAK mode and making C-g cause SIGINT.
4150 dnl The choice is controlled by the variable interrupt_input.
4152 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
4154 dnl Emacs uses the presence of the USABLE_SIGIO macro
4155 dnl to indicate whether or not signal-driven I/O is possible. It uses
4156 dnl INTERRUPT_INPUT to decide whether to use it by default.
4158 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
4159 dnl CBREAK mode has two disadvantages
4160 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
4161 dnl I hear that in system V this problem does not exist.
4162 dnl 2) Control-G causes output to be discarded.
4163 dnl I do not know whether this can be fixed in system V.
4165 dnl Another method of doing input is planned but not implemented.
4166 dnl It would have Emacs fork off a separate process
4167 dnl to read the input and send it to the true Emacs process
4170 darwin | gnu-linux | gnu-kfreebsd )
4171 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
4176 dnl If the system's imake configuration file defines `NeedWidePrototypes'
4177 dnl as `NO', we must define NARROWPROTO manually. Such a define is
4178 dnl generated in the Makefile generated by `xmkmf'. If we don't define
4179 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
4180 dnl taking float or double parameters.
4182 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
4183 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
4184 file defines `NeedWidePrototypes' as `NO'.])
4189 dnl Used in process.c, this must be a loop, even if it only runs once.
4190 dnl (Except on SGI; see below. Take that, clarity and consistency!)
4191 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
4192 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
4193 dnl trying suffixes 0-16.
4194 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
4195 first PTY, if PTYs are supported.])
4196 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
4197 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
4198 end of a PTY, if non-standard.])
4199 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
4200 end of a PTY, if non-standard.])
4204 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4205 dnl You allocate a pty by opening /dev/ptc to get the master side.
4206 dnl To get the name of the slave side, you just ttyname() the master side.
4207 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4208 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4212 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4213 dnl multi-line AC_DEFINEs are hard. :(
4214 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)])
4215 AC_DEFINE(PTY_NAME_SPRINTF, [])
4216 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4219 dnl FIXME? Maybe use same as freebsd - see bug#12040.
4221 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4222 dnl Not used, because PTY_ITERATION is defined.
4223 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4224 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
4225 dnl But we don't have to block SIGCHLD because it is blocked in the
4226 dnl implementation of grantpt.
4227 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (false)])
4228 AC_DEFINE(PTY_NAME_SPRINTF, [])
4229 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4233 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4236 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd )
4238 if test "x$ac_cv_func_grantpt" = xyes; then
4239 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4240 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4241 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4242 dnl to prevent sigchld_handler from intercepting the child's death.
4243 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); }])
4244 dnl if HAVE_POSIX_OPENPT
4245 if test "x$ac_cv_func_posix_openpt" = xyes; then
4246 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (false)])
4247 AC_DEFINE(PTY_NAME_SPRINTF, [])
4249 elif test "x$ac_cv_func_getpt" = xyes; then
4250 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4251 AC_DEFINE(PTY_NAME_SPRINTF, [])
4253 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4256 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4261 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4262 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4263 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4267 dnl It looks like this cannot be right, because it is not a loop.
4268 dnl However, process.c actually does this:
4274 dnl which presumably makes it OK, since irix == sgi (?).
4275 dnl FIXME it seems like this special treatment is unnecessary?
4276 dnl Why can't irix use a single-trip loop like eg cygwin?
4277 AC_DEFINE(PTY_ITERATION, [])
4278 dnl Not used, because PTY_ITERATION is defined.
4279 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
4280 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); }])
4281 dnl No need to get the pty name at all.
4282 AC_DEFINE(PTY_NAME_SPRINTF, [])
4283 dnl No need to use sprintf to get the tty name--we get that from _getpty.
4284 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4288 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
4289 dnl from intercepting that death. If any child but grantpt's should die
4290 dnl within, it should be caught after sigrelse(2).
4291 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); }])
4295 dnl Comments are as per sol2*.
4296 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); }])
4303 dnl This change means that we don't loop through allocate_pty too
4304 dnl many times in the (rare) event of a failure.
4305 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4306 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4307 dnl Push various streams modules onto a PTY channel. Used in process.c.
4308 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.])
4313 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4314 "typing" a signal character on the pty.])
4317 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4318 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
4319 aix4-2 | cygwin | gnu | irix6-5 | dragonfly | freebsd | netbsd | openbsd | darwin )
4320 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4323 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4324 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4325 gnu-linux | gnu-kfreebsd )
4327 AC_MSG_CHECKING([for signals via characters])
4328 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4329 #include <linux/version.h>
4330 #if LINUX_VERSION_CODE < 0x20400
4331 # error "Linux version too old"
4333 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4335 AC_MSG_RESULT([$emacs_signals_via_chars])
4336 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4341 dnl Used in lisp.h, emacs.c, vm-limit.c
4342 dnl NEWS.18 describes this as "a number which contains
4343 dnl the high bits to be inclusive or'ed with pointers that are unpacked."
4344 AH_TEMPLATE(DATA_SEG_BITS, [Extra bits to be or'd in with any pointers
4345 stored in a Lisp_Object.])
4346 dnl if Emacs uses fewer than 32 bits for the value field of a LISP_OBJECT.
4350 dnl This works with 32-bit executables; Emacs doesn't support 64-bit.
4351 AC_DEFINE(DATA_SEG_BITS, [0x20000000])
4354 dnl The data segment on this machine always starts at address 0x40000000.
4355 AC_DEFINE(DATA_SEG_BITS, [0x40000000])
4358 AC_DEFINE(DATA_SEG_BITS, [0x10000000])
4363 AH_TEMPLATE(TAB3, [Undocumented.])
4366 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4368 gnu | dragonfly | freebsd | netbsd | openbsd )
4369 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4370 AC_DEFINE(TAB3, OXTABS)
4373 gnu-linux | gnu-kfreebsd )
4374 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4378 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4379 [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)],
4380 [Mark a secondary stack, like the register stack on the ia64.]), [])
4384 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4385 run_time_remap; for HPUX.])
4390 dnl This won't be used automatically yet. We also need to know, at least,
4391 dnl that the stack is continuous.
4392 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4393 registers relevant for conservative garbage collection in the jmp_buf.])
4397 dnl Not all the architectures are tested, but there are Debian packages
4398 dnl for SCM and/or Guile on them, so the technique must work. See also
4399 dnl comments in alloc.c concerning setjmp and gcc.
4400 dnl Fixme: it's probably safe to just use the GCC conditional below.
4401 gnu-linux | gnu-kfreebsd )
4402 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4403 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4404 || defined __alpha__ || defined __mips__ || defined __s390__ \
4405 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4406 || defined __ia64__ || defined __sh__
4409 # error "setjmp not known to work on this arch"
4411 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4416 if test x$GCC = xyes; then
4417 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4418 AC_DEFINE(GC_SETJMP_WORKS, 1)
4421 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
4422 aix* | dragonfly | freebsd | netbsd | openbsd | irix6-5 | sol2* )
4423 AC_DEFINE(GC_SETJMP_WORKS, 1)
4428 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4429 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4432 [[#include <setjmp.h>
4434 # define _longjmp longjmp
4439 _longjmp (j, 1);]])],
4440 [emacs_cv_func__setjmp=yes],
4441 [emacs_cv_func__setjmp=no])])
4442 if test $emacs_cv_func__setjmp = yes; then
4443 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4445 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4448 [[#include <setjmp.h>
4451 if (! sigsetjmp (j, 1))
4452 siglongjmp (j, 1);]])],
4453 [emacs_cv_func_sigsetjmp=yes],
4454 [emacs_cv_func_sigsetjmp=no])])
4455 if test $emacs_cv_func_sigsetjmp = yes; then
4456 AC_DEFINE([HAVE_SIGSETJMP], 1,
4457 [Define to 1 if sigsetjmp and siglongjmp work.
4458 The value of this symbol is irrelevant if HAVE__SETJMP is defined.])
4464 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4465 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4466 dnl and this is all we need.
4467 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4474 dnl Used in xfaces.c.
4475 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4476 some systems, where it requires time.h.])
4481 dnl Define symbols to identify the version of Unix this is.
4482 dnl Define all the symbols that apply correctly.
4483 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4484 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4485 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4486 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4491 dnl This symbol should be defined on AIX Version 3 ???????
4492 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4494 # error "_AIX not defined"
4496 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4500 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4504 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
4505 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4506 dnl distinguish OS X from pure Darwin.
4507 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4510 gnu-linux | gnu-kfreebsd )
4512 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4517 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4522 AC_DEFINE(USG5_4, [])
4523 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4527 AC_DEFINE(DOS_NT, [])
4528 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4529 if test "x$ac_enable_checking" != "x" ; then
4530 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4536 AC_DEFINE(USG5_4, [])
4537 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4542 AC_DEFINE(USG5_4, [])
4546 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4549 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4550 emacs_cv_usable_FIONREAD=no
4554 emacs_cv_usable_FIONREAD=yes
4559 [AC_LANG_PROGRAM([[#include <sys/types.h>
4560 #include <sys/ioctl.h>
4562 # include <sys/filio.h>
4565 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4566 [emacs_cv_usable_FIONREAD=yes],
4567 [emacs_cv_usable_FIONREAD=no])
4570 if test $emacs_cv_usable_FIONREAD = yes; then
4571 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4573 if test $emacs_broken_SIGIO = no; then
4574 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4576 [AC_LANG_PROGRAM([[#include <fcntl.h>
4579 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4580 [emacs_cv_usable_SIGIO=yes],
4581 [emacs_cv_usable_SIGIO=no])],
4582 [emacs_cv_usable_SIGIO=yes],
4583 [emacs_cv_usable_SIGIO=no])
4584 if test $emacs_cv_usable_SIGIO = yes; then
4585 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4592 dnl Emacs supplies its own malloc, but glib calls posix_memalign,
4593 dnl and on Cygwin prior to version 1.7.24 that becomes the
4594 dnl Cygwin-supplied posix_memalign. As malloc is not the Cygwin
4595 dnl malloc, the Cygwin posix_memalign always returns ENOSYS. A
4596 dnl workaround is to set G_SLICE=always-malloc. This is no longer
4597 dnl needed starting with cygwin-1.7.24, and it is no longer
4598 dnl effective starting with glib-2.36. */
4600 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
4601 G_SLICE environment variable to "always-malloc" at startup.])
4605 dnl It works to open the pty's tty in the parent (Emacs), then
4606 dnl close and reopen it in the child.
4607 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4608 works to open a pty's tty in the parent process, then close and
4609 reopen it in the child.])
4613 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4614 use VSUSP instead of VSWTCH.])
4618 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4623 # Set up the CFLAGS for real compilation, so we can substitute it.
4624 CFLAGS="$REAL_CFLAGS"
4625 CPPFLAGS="$REAL_CPPFLAGS"
4627 ## Hack to detect a buggy GCC version.
4628 if test "x$GCC" = xyes \
4629 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4630 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4631 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4632 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4635 version=$PACKAGE_VERSION
4637 copyright="Copyright (C) 2015 Free Software Foundation, Inc."
4638 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4639 [Short copyright string for this version of Emacs.])
4642 ### Specify what sort of things we'll be editing into Makefile and config.h.
4643 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4645 AC_SUBST(configuration)
4650 AC_SUBST(exec_prefix)
4653 AC_SUBST(sharedstatedir)
4654 AC_SUBST(libexecdir)
4658 AC_SUBST(standardlisppath)
4659 AC_SUBST(locallisppath)
4661 AC_SUBST(x_default_search_path)
4663 AC_SUBST(archlibdir)
4668 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4669 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4670 ## end of LIBX_BASE, but nothing ever set it.
4671 AC_SUBST(LD_SWITCH_X_SITE)
4672 AC_SUBST(C_SWITCH_X_SITE)
4673 AC_SUBST(GNUSTEP_CFLAGS)
4675 ## Used in lwlib/Makefile.in.
4676 AC_SUBST(X_TOOLKIT_TYPE)
4678 AC_SUBST(ns_appbindir)
4679 AC_SUBST(ns_appresdir)
4681 AC_SUBST(GNU_OBJC_CFLAGS)
4682 AC_SUBST(OTHER_FILES)
4684 if test -n "${term_header}"; then
4685 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4686 [Define to the header for the built-in window system.])
4689 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4690 [Define to the canonical Emacs configuration name.])
4691 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4692 [Define to the options passed to configure.])
4693 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4694 define this to include extra configuration information.])
4698 AC_DEFINE(config_opsysfile, <ms-w32.h>, [])
4705 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4706 AC_DEFINE(HAVE_X_WINDOWS, 1,
4707 [Define to 1 if you want to use the X window system.])
4709 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4711 if test "$HAVE_XFT" = "yes"; then
4712 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4713 elif test "$HAVE_FREETYPE" = "yes"; then
4714 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4724 if test "${USE_X_TOOLKIT}" != "none" ; then
4726 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4727 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4728 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4729 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4730 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4734 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4735 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4739 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4740 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4741 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4745 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4746 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4749 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4752 AC_SUBST(WIDGET_OBJ)
4755 case "$USE_X_TOOLKIT" in
4756 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4757 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4758 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4760 AC_SUBST(TOOLKIT_LIBW)
4762 if test "${opsys}" != "mingw32"; then
4763 if test "$USE_X_TOOLKIT" = "none"; then
4764 LIBXT_OTHER="\$(LIBXSM)"
4766 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4769 AC_SUBST(LIBXT_OTHER)
4771 if test "${HAVE_X11}" = "yes" ; then
4772 AC_DEFINE(HAVE_X11, 1,
4773 [Define to 1 if you want to use version 11 of X windows.])
4774 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4778 AC_SUBST(LIBX_OTHER)
4780 if test "$HAVE_GTK" = yes || test "$HAVE_X11" != yes; then
4782 elif test "$USE_X_TOOLKIT" = none; then
4783 LIBXMENU='$(oldXMenudir)/libXMenu11.a'
4785 LIBXMENU='$(lwlibdir)/liblw.a'
4789 if test "${GNU_MALLOC}" = "yes" ; then
4790 AC_DEFINE(GNU_MALLOC, 1,
4791 [Define to 1 if you want to use the GNU memory allocator.])
4795 if test "${REL_ALLOC}" = "yes" ; then
4796 AC_DEFINE(REL_ALLOC, 1,
4797 [Define REL_ALLOC if you want to use the relocating allocator for
4800 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4802 AC_SUBST(RALLOC_OBJ)
4804 if test "$opsys" = "cygwin"; then
4805 CYGWIN_OBJ="sheap.o cygw32.o"
4806 ## Cygwin differs because of its unexec().
4808 POST_ALLOC_OBJ=lastfile.o
4809 elif test "$opsys" = "mingw32"; then
4812 POST_ALLOC_OBJ=lastfile.o
4815 PRE_ALLOC_OBJ=lastfile.o
4818 AC_SUBST(CYGWIN_OBJ)
4819 AC_SUBST(PRE_ALLOC_OBJ)
4820 AC_SUBST(POST_ALLOC_OBJ)
4822 dnl Call this 'FORTIFY_SOUR' so that it sorts before the 'FORTIFY_SOURCE'
4823 dnl verbatim defined above. The tricky name is apropos, as this hack
4824 dnl makes Fortify go sour!
4825 AH_VERBATIM([FORTIFY_SOUR],
4826 [/* Without the following workaround, Emacs runs slowly on OS X 10.8.
4827 The workaround disables some useful run-time checking, so it
4828 should be conditional to the platforms with the performance bug.
4829 Perhaps Apple will fix this some day; also see m4/extern-inline.m4. */
4830 #if defined __APPLE__ && defined __GNUC__
4831 # ifndef _DONT_USE_CTYPE_INLINE_
4832 # define _DONT_USE_CTYPE_INLINE_
4834 # ifndef _FORTIFY_SOURCE
4835 # define _FORTIFY_SOURCE 0
4840 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4841 # it temporarily reverts them to their pre-pkg-config values,
4842 # because gnulib needs to work with both src (which uses the
4843 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4844 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4845 # and it therefore needs to run in an environment where LIBS does not
4846 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4847 # for some package unrelated to lib-src.
4850 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4851 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4852 gl_ASSERT_NO_GNULIB_POSIXCHECK
4853 gl_ASSERT_NO_GNULIB_TESTS
4858 if test "${opsys}" = "mingw32"; then
4859 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I \${abs_top_srcdir}/nt/inc"
4860 # Remove unneeded switches from the value of CC that goes to Makefiles
4861 CC=`echo $CC | sed -e "s,$GCC_TEST_OPTIONS,,"`
4865 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4867 cygwin) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000" ;;
4870 ## The -headerpad option tells ld (see man page) to leave room at the
4871 ## end of the header for adding load commands. Needed for dumping.
4872 ## 0x1000 is enough for roughly 52 load commands on the x86_64
4873 ## architecture (where they are 78 bytes each). The actual number of
4874 ## load commands added is not consistent but normally ranges from
4875 ## about 14 to about 34. Setting it high gets us plenty of slop and
4876 ## only costs about 1.5K of wasted binary space.
4877 headerpad_extra=1000
4878 if test "$HAVE_NS" = "yes"; then
4879 libs_nsgui="-framework AppKit"
4880 if test "$NS_IMPL_COCOA" = "yes"; then
4881 libs_nsgui="$libs_nsgui -framework IOKit"
4886 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4888 ## This is here because src/Makefile.in did some extra fiddling around
4889 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
4890 ## LD_SWITCH_SYSTEM_TEMACS instead,
4891 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4892 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4895 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4896 ## find X at run-time.
4897 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4898 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4899 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4900 ## had different values in configure (in ac_link) and src/Makefile.in.
4901 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4902 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4905 ## MinGW64 does not prepend an underscore to symbols, so we must
4906 ## pass a different -entry switch to linker. FIXME: It is better
4907 ## to make the entry points the same by changing unexw32.c.
4908 case "$canonical" in
4909 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4910 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4914 openbsd) LD_SWITCH_SYSTEM_TEMACS='-nopie' ;;
4916 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4919 if test x$ac_enable_profiling != x ; then
4921 *freebsd | gnu-linux) ;;
4922 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
4926 LD_SWITCH_SYSTEM_TEMACS="$LDFLAGS_NOCOMBRELOC $LD_SWITCH_SYSTEM_TEMACS"
4928 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4930 ## MinGW-specific post-link processing of temacs.
4931 TEMACS_POST_LINK=":"
4934 if test "${opsys}" = "mingw32"; then
4935 TEMACS_POST_LINK="\$(MINGW_TEMACS_POST_LINK)"
4936 ADDSECTION="../nt/addsection\$(EXEEXT)"
4937 ## Preload heap size of temacs.exe in MB.
4938 case "$canonical" in
4939 x86_64-*-*) EMACS_HEAPSIZE=42 ;;
4940 *) EMACS_HEAPSIZE=27 ;;
4944 AC_SUBST(ADDSECTION)
4945 AC_SUBST(TEMACS_POST_LINK)
4946 AC_SUBST(EMACS_HEAPSIZE)
4948 ## Common for all window systems
4949 if test "$window_system" != "none"; then
4950 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4951 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4954 AC_SUBST(WINDOW_SYSTEM_OBJ)
4956 AH_TOP([/* GNU Emacs site configuration template file.
4958 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2015
4959 Free Software Foundation, Inc.
4961 This file is part of GNU Emacs.
4963 GNU Emacs is free software: you can redistribute it and/or modify
4964 it under the terms of the GNU General Public License as published by
4965 the Free Software Foundation, either version 3 of the License, or
4966 (at your option) any later version.
4968 GNU Emacs is distributed in the hope that it will be useful,
4969 but WITHOUT ANY WARRANTY; without even the implied warranty of
4970 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4971 GNU General Public License for more details.
4973 You should have received a copy of the GNU General Public License
4974 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4977 /* No code in Emacs #includes config.h twice, but some bits of code
4978 intended to work with other packages as well (like gmalloc.c)
4979 think they can include it as many times as they like. */
4980 #ifndef EMACS_CONFIG_H
4981 #define EMACS_CONFIG_H
4984 AH_BOTTOM([#include <conf_post.h>
4986 #endif /* EMACS_CONFIG_H */
4995 #### Report on what we decided to do.
4996 #### Report GTK as a toolkit, even if it doesn't use Xt.
4997 #### It makes printing result more understandable as using GTK sets
4998 #### toolkit_scroll_bars to yes by default.
4999 if test "${HAVE_GTK}" = "yes"; then
5000 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
5003 if test $USE_ACL -ne 0; then
5004 acl_summary="yes $LIB_ACL"
5010 Configured for \`${canonical}'.
5012 Where should the build process find the source code? ${srcdir}
5013 What compiler should emacs be built with? ${CC} ${CFLAGS}
5014 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
5015 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
5016 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
5017 What window system should Emacs use? ${window_system}
5018 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
5020 if test -n "${x_includes}"; then
5021 echo " Where do we find X Windows header files? ${x_includes}"
5023 echo " Where do we find X Windows header files? Standard dirs"
5025 if test -n "${x_libraries}"; then
5026 echo " Where do we find X Windows libraries? ${x_libraries}"
5028 echo " Where do we find X Windows libraries? Standard dirs"
5031 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
5032 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
5033 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
5034 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
5035 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
5036 echo " Does Emacs use a png library? ${HAVE_PNG} $LIBPNG"
5037 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
5038 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
5040 echo " Does Emacs support sound? ${HAVE_SOUND}"
5042 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
5043 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
5044 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
5045 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
5046 echo " Does Emacs use a file notification library? ${NOTIFY_SUMMARY}"
5047 echo " Does Emacs use access control lists? ${acl_summary}"
5048 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
5049 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
5050 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
5052 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
5053 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
5054 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
5055 echo " Does Emacs use -lxft? ${HAVE_XFT}"
5056 echo " Does Emacs directly use zlib? ${HAVE_ZLIB}"
5058 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
5061 if test -n "${EMACSDATA}"; then
5062 echo " Environment variable EMACSDATA set to: $EMACSDATA"
5064 if test -n "${EMACSDOC}"; then
5065 echo " Environment variable EMACSDOC set to: $EMACSDOC"
5070 if test "$HAVE_NS" = "yes"; then
5072 echo "You must run \"${MAKE-make} install\" in order to test the built application.
5073 The installed application will go to nextstep/Emacs.app and can be
5074 run or moved from there."
5075 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
5076 echo "The application will be fully self-contained."
5078 echo "The lisp resources for the application will be installed under ${prefix}.
5079 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
5080 to run if these resources are not installed."
5085 if test "${opsys}" = "cygwin"; then
5087 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
5093 # Remove any trailing slashes in these variables.
5094 [test "${prefix}" != NONE &&
5095 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
5096 test "${exec_prefix}" != NONE &&
5097 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
5099 if test "$HAVE_NS" = "yes"; then
5100 if test "$NS_IMPL_GNUSTEP" = yes; then
5101 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
5102 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
5103 ns_check_file=Resources/Info-gnustep.plist
5105 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
5106 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
5107 ns_check_file=Contents/Info.plist
5109 AC_SUBST(ns_check_file)
5112 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
5113 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
5114 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
5115 dnl (else you get "no `Makefile.am' found for any configure output").
5116 dnl This will work, but you get a config.status that is not quite right
5117 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
5118 dnl That doesn't have any obvious consequences for Emacs, but on the whole
5119 dnl it seems better to just live with the duplication.
5120 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile nt/Makefile"
5122 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
5123 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
5124 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
5125 leim/Makefile nextstep/Makefile nt/Makefile])
5127 dnl test/ is not present in release tarfiles.
5128 opt_makefile=test/automated/Makefile
5130 if test -f "$srcdir/$opt_makefile.in"; then
5131 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
5132 dnl Again, it's best not to use a variable. Though you can add
5133 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
5134 AC_CONFIG_FILES([test/automated/Makefile])
5138 dnl The admin/ directory used to be excluded from tarfiles.
5139 if test -d $srcdir/admin; then
5140 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES admin/unidata/Makefile admin/grammars/Makefile"
5141 AC_CONFIG_FILES([admin/unidata/Makefile])
5142 AC_CONFIG_FILES([admin/grammars/Makefile])
5146 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
5148 AC_SUBST(SUBDIR_MAKEFILES_IN)
5150 dnl You might wonder (I did) why epaths.h is generated by running make,
5151 dnl rather than just letting configure generate it from epaths.in.
5152 dnl One reason is that the various paths are not fully expanded (see above);
5153 dnl eg gamedir=${prefix}/var/games/emacs.
5154 dnl Secondly, the GNU Coding standards require that one should be able
5155 dnl to run `make prefix=/some/where/else' and override the values set
5156 dnl by configure. This also explains the `move-if-change' test and
5157 dnl the use of force in the `epaths-force' rule in Makefile.in.
5158 AC_CONFIG_COMMANDS([src/epaths.h], [
5159 if test "${opsys}" = "mingw32"; then
5160 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
5162 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
5164 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
5166 dnl NB we have to cheat and use the ac_... version because abs_top_srcdir
5167 dnl is not yet set, sigh. Or we could use ../$srcdir/src/.gdbinit,
5169 AC_CONFIG_COMMANDS([src/.gdbinit], [
5170 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
5171 echo "source $ac_abs_top_srcdir/src/.gdbinit" > src/.gdbinit