1 dnl Autoconf script for GNU Emacs
2 dnl To rebuild the `configure' script from this, execute the command
4 dnl in the directory containing this script.
5 dnl If you changed any AC_DEFINES, also run autoheader.
7 dnl Copyright (C) 1994-1996, 1999-2014 Free Software Foundation, Inc.
9 dnl This file is part of GNU Emacs.
11 dnl GNU Emacs is free software: you can redistribute it and/or modify
12 dnl it under the terms of the GNU General Public License as published by
13 dnl the Free Software Foundation, either version 3 of the License, or
14 dnl (at your option) any later version.
16 dnl GNU Emacs is distributed in the hope that it will be useful,
17 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
18 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 dnl GNU General Public License for more details.
21 dnl You should have received a copy of the GNU General Public License
22 dnl along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
25 AC_INIT(emacs, 24.3.90)
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 srcdir="/${srcdir:0:1}${srcdir:2}"
43 dnl Set emacs_config_options to the options of 'configure', quoted for the shell,
44 dnl and then quoted again for a C string. Separate options with spaces.
45 dnl Add some environment variables, if they were passed via the environment
46 dnl rather than on the command-line.
49 dnl This is the documented way to record the args passed to configure,
50 dnl rather than $ac_configure_args.
51 for opt in ${1+"$@"} CFLAGS CPPFLAGS LDFLAGS; do
53 -n | --no-create | --no-recursion)
55 CFLAGS | CPPFLAGS | LDFLAGS)
56 eval 'test "${'$opt'+set}" = set' || continue
58 *" $opt="*) continue ;;
60 eval opt=$opt=\$$opt ;;
63 emacs_shell_specials=$IFS\''"#$&()*;<>?@<:@\\`{|~'
65 *[["$emacs_shell_specials"]]*)
68 emacs_quote_apostrophes="s/'/'\\\\''/g"
69 opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_apostrophes"` ;;
74 emacs_quote_for_c='s/[["\\]]/\\&/g; $!s/$/\\n\\/'
75 opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_for_c"` ;;
78 AS_VAR_APPEND([emacs_config_options], ["$optsep$opt"])
82 AC_CONFIG_HEADERS(src/config.h:src/config.in)
83 AC_CONFIG_SRCDIR(src/lisp.h)
84 AC_CONFIG_AUX_DIR(build-aux)
87 AC_CHECK_PROGS(XCRUN, [xcrun])
88 if test -n "$XCRUN"; then
89 if test -z "$MAKE"; then
90 dnl Call the variable MAKE_PROG, not MAKE, to avoid confusion with
91 dnl SET_MAKE and with the usual MAKE variable that 'make' itself uses.
92 AC_CHECK_PROG([MAKE_PROG], [make], [yes])
93 if test -z "$MAKE_PROG"; then
96 xcsdkdir=`$XCRUN --show-sdk-path 2>/dev/null`
101 dnl Fairly arbitrary, older versions might work too.
102 AM_INIT_AUTOMAKE(1.11)
104 dnl Support for --program-prefix, --program-suffix and
105 dnl --program-transform-name options
108 dnl It is important that variables on the RHS not be expanded here,
109 dnl hence the single quotes. This is per the GNU coding standards, see
110 dnl (autoconf) Installation Directory Variables
111 dnl See also epaths.h below.
112 lispdir='${datadir}/emacs/${version}/lisp'
113 standardlisppath='${lispdir}'
114 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
115 '${datadir}/emacs/site-lisp'
116 lisppath='${locallisppath}:${standardlisppath}'
117 etcdir='${datadir}/emacs/${version}/etc'
118 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
119 etcdocdir='${datadir}/emacs/${version}/etc'
120 gamedir='${localstatedir}/games/emacs'
122 dnl Special option to disable the most of other options.
124 [AS_HELP_STRING([--without-all],
125 [omit almost all features and build
126 small executable with minimal dependencies])],
127 [with_features=$withval],
130 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
131 dnl Create a new --with option that defaults to being disabled.
132 dnl NAME is the base name of the option. The shell variable with_NAME
133 dnl will be set to either the user's value (if the option is
134 dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
135 dnl option is not specified). Note that the shell variable name is
136 dnl constructed as autoconf does, by replacing non-alphanumeric
137 dnl characters with "_".
138 dnl HELP-STRING is the help text for the option.
139 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
140 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
141 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
144 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
145 dnl Create a new --with option that defaults to $with_features.
146 dnl NAME is the base name of the option. The shell variable with_NAME
147 dnl will be set either to 'no' (for a plain --without-NAME) or to
148 dnl 'yes' (if the option is not specified). Note that the shell
149 dnl variable name is constructed as autoconf does, by replacing
150 dnl non-alphanumeric characters with "_".
151 dnl HELP-STRING is the help text for the option.
152 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
153 AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
154 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=$with_features])dnl
157 OPTION_DEFAULT_ON([pop],[don't support POP mail retrieval with movemail])
158 if test "$with_pop" = yes; then
159 AC_DEFINE(MAIL_USE_POP)
161 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
163 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
164 if test "$with_kerberos" != no; then
167 AH_TEMPLATE(KERBEROS,
168 [Define to support Kerberos-authenticated POP mail retrieval.])dnl
170 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
171 if test "${with_kerberos5}" != no; then
172 if test "${with_kerberos}" = no; then
176 AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
179 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
180 dnl FIXME hesiod support may not be present, so it seems like an error
181 dnl to define, or at least use, this unconditionally.
182 if test "$with_hesiod" != no; then
183 AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
186 OPTION_DEFAULT_OFF([mmdf],[support MMDF mailboxes])
187 if test "$with_mmdf" != no; then
188 AC_DEFINE(MAIL_USE_MMDF, 1, [Define to support MMDF mailboxes in movemail.])
191 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
192 if test "$with_mail_unlink" != no; then
193 AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
196 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
197 [string giving default POP mail host])],
198 AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
200 AC_ARG_WITH([sound],[AS_HELP_STRING([--with-sound=VALUE],
201 [compile with sound support (VALUE one of: yes, alsa, oss, bsd-ossaudio, no;
202 default yes). Only for GNU/Linux, FreeBSD, NetBSD, MinGW.])],
203 [ case "${withval}" in
204 yes|no|alsa|oss|bsd-ossaudio) val=$withval ;;
205 *) AC_MSG_ERROR([`--with-sound=$withval' is invalid;
206 this option's value should be `yes', `no', `alsa', `oss', or `bsd-ossaudio'.])
211 [with_sound=$with_features])
213 dnl FIXME currently it is not the last.
214 dnl This should be the last --with option, because --with-x is
215 dnl added later on when we find the file name of X, and it's best to
216 dnl keep them together visually.
217 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
218 [use an X toolkit (KIT one of: yes or gtk, gtk2, gtk3, lucid or athena, motif, no)])],
219 [ case "${withval}" in
220 y | ye | yes ) val=gtk ;;
222 l | lu | luc | luci | lucid ) val=lucid ;;
223 a | at | ath | athe | athen | athena ) val=athena ;;
224 m | mo | mot | moti | motif ) val=motif ;;
225 g | gt | gtk ) val=gtk ;;
229 AC_MSG_ERROR([`--with-x-toolkit=$withval' is invalid;
230 this option's value should be `yes', `no', `lucid', `athena', `motif', `gtk',
231 `gtk2' or `gtk3'. `yes' and `gtk' are synonyms.
232 `athena' and `lucid' are synonyms.])
238 OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit)])
239 if test "$with_wide_int" = yes; then
240 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
243 dnl _ON results in a '--without' option in the --help output, so
244 dnl the help text should refer to "don't compile", etc.
245 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
246 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
247 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
248 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
249 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
250 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
251 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
252 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
254 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
255 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
256 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
258 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
259 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
260 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
261 OPTION_DEFAULT_OFF([ns],[use NeXTstep (Cocoa or GNUstep) windowing system])
262 OPTION_DEFAULT_OFF([w32], [use native MS Windows GUI in a Cygwin build])
264 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
265 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
266 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
267 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
268 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
269 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
270 OPTION_DEFAULT_ON([zlib],[don't compile with zlib decompression support])
272 AC_ARG_WITH([file-notification],[AS_HELP_STRING([--with-file-notification=LIB],
273 [use a file notification library (LIB one of: yes, gfile, inotify, w32, no)])],
274 [ case "${withval}" in
275 y | ye | yes ) val=yes ;;
277 g | gf | gfi | gfil | gfile ) val=gfile ;;
278 i | in | ino | inot | inoti | inotif | inotify ) val=inotify ;;
279 w | w3 | w32 ) val=w32 ;;
280 * ) AC_MSG_ERROR([`--with-file-notification=$withval' is invalid;
281 this option's value should be `yes', `no', `gfile', `inotify' or `w32'.
282 `yes' is a synonym for `w32' on MS-Windows, for `no' on Nextstep,
283 otherwise for the first of `gfile' or `inotify' that is usable.])
286 with_file_notification=$val
288 [with_file_notification=$with_features])
290 ## For the times when you want to build Emacs but don't have
291 ## a suitable makeinfo, and can live without the manuals.
292 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
293 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
295 ## Makefile.in needs the cache file name.
298 ## This is an option because I do not know if all info/man support
299 ## compressed files, nor how to test if they do so.
300 OPTION_DEFAULT_ON([compress-install],
301 [don't compress some files (.el, .info, etc.) when installing. Equivalent to:
302 make GZIP_PROG= install])
304 AC_ARG_WITH([pkg-config-prog],dnl
305 [AS_HELP_STRING([--with-pkg-config-prog=FILENAME],
306 [file name of pkg-config for finding GTK and librsvg])])
307 if test "X${with_pkg_config_prog}" != X; then
308 if test "${with_pkg_config_prog}" != yes; then
309 PKG_CONFIG="${with_pkg_config_prog}"
313 AC_ARG_WITH(gameuser,dnl
314 [AS_HELP_STRING([--with-gameuser=USER],[user for shared game score files])])
315 test "X${with_gameuser}" != X && test "${with_gameuser}" != yes \
316 && gameuser="${with_gameuser}"
317 test "X$gameuser" = X && gameuser=games
319 AC_ARG_WITH([gnustep-conf],dnl
320 [AS_HELP_STRING([--with-gnustep-conf=FILENAME],
321 [name of GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
322 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
323 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
324 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
325 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
327 AC_ARG_ENABLE(ns-self-contained,
328 [AS_HELP_STRING([--disable-ns-self-contained],
329 [disable self contained build under NeXTstep])],
330 EN_NS_SELF_CONTAINED=$enableval,
331 EN_NS_SELF_CONTAINED=yes)
333 AC_ARG_ENABLE(locallisppath,
334 [AS_HELP_STRING([--enable-locallisppath=PATH],
335 [directories Emacs should search for lisp files specific
337 if test "${enableval}" = "no"; then
339 elif test "${enableval}" != "yes"; then
340 locallisppath=${enableval}
343 AC_ARG_ENABLE(checking,
344 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
345 [enable expensive run-time checks. With LIST,
346 enable only specific categories of checks.
347 Categories are: all,yes,no.
348 Flags are: stringbytes, stringoverrun, stringfreelist,
349 xmallocoverrun, conslist, glyphs])],
350 [ac_checking_flags="${enableval}"],[])
351 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
352 for check in $ac_checking_flags
355 # these set all the flags to specific states
356 yes) ac_enable_checking=1 ;;
357 no) ac_enable_checking= ;
358 ac_gc_check_stringbytes= ;
359 ac_gc_check_string_overrun= ;
360 ac_gc_check_string_free_list= ;
361 ac_xmalloc_overrun= ;
362 ac_gc_check_cons_list= ;
364 all) ac_enable_checking=1 ;
365 ac_gc_check_stringbytes=1 ;
366 ac_gc_check_string_overrun=1 ;
367 ac_gc_check_string_free_list=1 ;
368 ac_xmalloc_overrun=1 ;
369 ac_gc_check_cons_list=1 ;
371 # these enable particular checks
372 stringbytes) ac_gc_check_stringbytes=1 ;;
373 stringoverrun) ac_gc_check_string_overrun=1 ;;
374 stringfreelist) ac_gc_check_string_free_list=1 ;;
375 xmallocoverrun) ac_xmalloc_overrun=1 ;;
376 conslist) ac_gc_check_cons_list=1 ;;
377 glyphs) ac_glyphs_debug=1 ;;
378 *) AC_MSG_ERROR(unknown check category $check) ;;
383 if test x$ac_enable_checking != x ; then
384 AC_DEFINE(ENABLE_CHECKING, 1,
385 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
387 if test x$ac_gc_check_stringbytes != x ; then
388 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
389 [Define this temporarily to hunt a bug. If defined, the size of
390 strings is redundantly recorded in sdata structures so that it can
391 be compared to the sizes recorded in Lisp strings.])
393 if test x$ac_gc_check_string_overrun != x ; then
394 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
395 [Define this to check for short string overrun.])
397 if test x$ac_gc_check_string_free_list != x ; then
398 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
399 [Define this to check the string free list.])
401 if test x$ac_xmalloc_overrun != x ; then
402 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
403 [Define this to check for malloc buffer overrun.])
405 if test x$ac_gc_check_cons_list != x ; then
406 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
407 [Define this to check for errors in cons list.])
409 if test x$ac_glyphs_debug != x ; then
410 AC_DEFINE(GLYPH_DEBUG, 1,
411 [Define this to enable glyphs debugging code.])
414 AC_ARG_ENABLE(check-lisp-object-type,
415 [AS_HELP_STRING([--enable-check-lisp-object-type],
416 [enable compile time checks for the Lisp_Object data type.
417 This is useful for development for catching certain types of bugs.])],
418 if test "${enableval}" != "no"; then
419 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
420 [Define this to enable compile time checks for the Lisp_Object data type.])
424 dnl The name of this option is unfortunate. It predates, and has no
425 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
426 dnl Actually, it stops it working.
427 dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
428 AC_ARG_ENABLE(profiling,
429 [AS_HELP_STRING([--enable-profiling],
430 [build emacs with low-level, gprof profiling support.
431 Mainly useful for debugging Emacs itself. May not work on
432 all platforms. Stops profiler.el working.])],
433 [ac_enable_profiling="${enableval}"],[])
434 if test x$ac_enable_profiling != x ; then
435 PROFILING_CFLAGS="-DPROFILING=1 -pg"
439 AC_SUBST(PROFILING_CFLAGS)
441 AC_ARG_ENABLE(autodepend,
442 [AS_HELP_STRING([--enable-autodepend],
443 [automatically generate dependencies to .h-files.
444 Requires GNU Make and Gcc. Enabled if GNU Make and Gcc is
446 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
448 AC_ARG_ENABLE(gtk-deprecation-warnings,
449 [AS_HELP_STRING([--enable-gtk-deprecation-warnings],
450 [Show Gtk+/Gdk deprecation warnings for Gtk+ >= 3.0])],
451 [ac_enable_gtk_deprecation_warnings="${enableval}"],[])
453 ### Canonicalize the configuration name.
457 configuration=${host_alias-${build_alias-$host}}
459 dnl This used to use changequote, but, apart from `changequote is evil'
460 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
461 dnl the great gob of text. Thus it's not processed for possible expansion.
462 dnl Just make sure the brackets remain balanced.
464 dnl Since Emacs can't find matching pairs of quotes, boundaries are
465 dnl indicated by comments.
469 ### If you add support for a new configuration, add code to this
470 ### switch statement to recognize your configuration name and select
471 ### the appropriate opsys.
473 ### As far as handling version numbers on operating systems is
474 ### concerned, make sure things will fail in a fixable way. If
475 ### /etc/MACHINES doesn't say anything about version numbers, be
476 ### prepared to handle anything reasonably. If version numbers
477 ### matter, be sure /etc/MACHINES says something about it.
480 case "${canonical}" in
482 ## GNU/Linux and similar ports
497 ## FreeBSD kernel + glibc based userland
508 *-*-openbsd* | *-*-mirbsd* )
512 ## Apple Darwin / Mac OS X
514 case "${canonical}" in
521 ## Use fink packages if available.
522 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
523 ## if test -d /sw/include && test -d /sw/lib; then
524 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
525 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
534 ## HP 9000 series 700 and 800, running HP/UX
538 hppa*-hp-hpux1[1-9]* )
540 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
544 rs6000-ibm-aix4.[23]* )
547 powerpc-ibm-aix4.[23]* )
550 rs6000-ibm-aix[56]* )
553 powerpc-ibm-aix[56]* )
557 ## Silicon Graphics machines
561 # Without defining _LANGUAGE_C, things get masked out in the headers
562 # so that, for instance, grepping for `free' in stdlib.h fails and
563 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
564 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
569 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
570 | x86_64-*-solaris2* | x86_64-*-sunos5*)
571 case "${canonical}" in
573 amd64-*-*|x86_64-*-*) ;;
577 case "${canonical}" in
578 *-sunos5.[1-9][0-9]* | *-solaris2.[1-9][0-9]* )
580 emacs_check_sunpro_c=yes
582 *-sunos5.6* | *-solaris2.6* )
586 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
588 emacs_check_sunpro_c=yes
591 ## Watch out for a compiler that we know will not work.
592 case "${canonical}" in
593 *-solaris* | *-sunos5* )
594 if [ "x$CC" = x/usr/ucb/cc ]; then
595 ## /usr/ucb/cc doesn't work;
596 ## we should find some other compiler that does work.
604 ## Intel 386 machines where we don't care about the manufacturer.
606 case "${canonical}" in
607 *-darwin* ) opsys=darwin ;;
610 # MinGW overrides and adds some system headers in nt/inc.
611 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
613 *-sysv4.2uw* ) opsys=unixware ;;
614 *-sysv5uw* ) opsys=unixware ;;
615 *-sysv5OpenUNIX* ) opsys=unixware ;;
616 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
622 case "${canonical}" in
625 # MinGW overrides and adds some system headers in nt/inc.
626 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
628 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
637 ### If the code above didn't choose an operating system, just choose
638 ### an operating system based on the configuration name. You really
639 ### only want to use this when you have no idea what the right
640 ### operating system is; if you know what operating systems a machine
641 ### runs, it's cleaner to make it explicit in the case statement
643 if test x"${opsys}" = x; then
644 case "${canonical}" in
645 *-gnu* ) opsys=gnu ;;
655 if test $unported = yes; then
656 AC_MSG_ERROR([Emacs does not support `${canonical}' systems.
657 If you think it should, please send a report to bug-gnu-emacs@gnu.org.
658 Check `etc/MACHINES' for recognized configuration names.])
662 #### Choose a compiler.
664 dnl Sets GCC=yes if using gcc.
665 AC_PROG_CC([gcc cc cl clang "$XCRUN gcc" "$XCRUN clang"])
666 if test -n "$XCRUN"; then
667 AC_CHECK_PROGS(AR, [ar "$XCRUN ar"])
668 test -n "$AR" && export AR
673 if test x$GCC = xyes; then
674 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
676 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
679 dnl This is used in lib/Makefile.am to use nt/gnulib.mk, the
680 dnl alternative to lib/gnulib.mk, so as to avoid generating header files
681 dnl that clash with MinGW.
682 AM_CONDITIONAL([BUILDING_FOR_WINDOWSNT], [test "x$opsys" = "xmingw32"])
684 # Avoid gnulib's tests for -lcrypto, so that there's no static dependency on it.
685 AC_DEFUN([gl_CRYPTO_CHECK])
686 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
687 # as we don't use them.
688 AC_DEFUN([gl_FCNTL_O_FLAGS])
689 # Avoid gnulib's threadlib module, as we do threads our own way.
690 AC_DEFUN([gl_THREADLIB])
692 # Initialize gnulib right after choosing the compiler.
693 dnl Amongst other things, this sets AR and ARFLAGS.
696 if test "$ac_test_CFLAGS" != set; then
697 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
698 # if -g3 works and the user does not specify CFLAGS.
699 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
702 emacs_g3_CFLAGS='-g3';;
704 emacs_g3_CFLAGS='-g3 -O2';;
708 if test -n "$emacs_g3_CFLAGS"; then
709 emacs_save_CFLAGS=$CFLAGS
710 CFLAGS=$emacs_g3_CFLAGS
711 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
712 [emacs_cv_prog_cc_g3],
713 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
714 [emacs_cv_prog_cc_g3=yes],
715 [emacs_cv_prog_cc_g3=no])])
716 if test $emacs_cv_prog_cc_g3 != yes; then
717 CFLAGS=$emacs_save_CFLAGS
719 if test $opsys = mingw32; then
720 CFLAGS="$CFLAGS -gdwarf-2"
727 # No optimization flag was inferred for this non-GCC compiler.
728 # Try -O. This is needed for xlc on AIX; see Bug#14258.
729 emacs_save_CFLAGS=$CFLAGS
730 test -z "$CFLAGS" || CFLAGS="$CFLAGS "
732 AC_CACHE_CHECK([whether $CC accepts -O],
733 [emacs_cv_prog_cc_o],
734 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
735 [emacs_cv_prog_cc_o=yes],
736 [emacs_cv_prog_cc_o=no])])
737 if test $emacs_cv_prog_cc_o != yes; then
738 CFLAGS=$emacs_save_CFLAGS
743 AC_ARG_ENABLE([gcc-warnings],
744 [AS_HELP_STRING([--enable-gcc-warnings],
745 [turn on lots of GCC warnings/errors. This is intended for
746 developers, and may generate false alarms when used
747 with older or non-GNU development tools.])],
750 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
752 gl_gcc_warnings=$enableval],
756 AC_ARG_ENABLE(link-time-optimization,
757 [AS_HELP_STRING([--enable-link-time-optimization],
758 [build emacs with link-time optimization.
759 This is supported only for GCC since 4.5.0.])],
760 if test "${enableval}" != "no"; then
761 AC_MSG_CHECKING([whether link-time optimization is supported])
763 if test x$GCC = xyes; then
764 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
765 if test x$CPUS != x; then
771 CFLAGS="$CFLAGS $LTO"
772 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
773 [ac_lto_supported=yes], [ac_lto_supported=no])
776 AC_MSG_RESULT([$ac_lto_supported])
777 if test "$ac_lto_supported" = "yes"; then
778 CFLAGS="$CFLAGS $LTO"
782 # clang is unduly picky about some things.
783 AC_CACHE_CHECK([whether the compiler is clang], [emacs_cv_clang],
790 [emacs_cv_clang=yes],
791 [emacs_cv_clang=no])])
793 # When compiling with GCC, prefer -isystem to -I when including system
794 # include files, to avoid generating useless diagnostics for the files.
795 if test "$gl_gcc_warnings" != yes; then
797 if test "$emacs_cv_clang" = yes
799 # Turn off some warnings if supported.
800 gl_WARN_ADD([-Wno-switch])
801 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
802 gl_WARN_ADD([-Wno-pointer-sign])
807 # This, $nw, is the list of warnings we disable.
810 case $with_x_toolkit in
811 lucid | athena | motif)
812 # Old toolkits mishandle 'const'.
813 nw="$nw -Wwrite-strings"
816 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
819 AC_SUBST([WERROR_CFLAGS])
821 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
822 nw="$nw -Woverlength-strings" # Not a problem these days
823 nw="$nw -Wlogical-op" # any use of fwrite provokes this
824 nw="$nw -Wformat-nonliteral" # we do this a lot
825 nw="$nw -Wvla" # warnings in gettext.h
826 nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
827 nw="$nw -Wswitch-default" # Too many warnings for now
828 nw="$nw -Winline" # OK to ignore 'inline'
829 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
830 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
831 # signed overflow has undefined behavior
832 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
833 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
834 nw="$nw -Wbad-function-cast" # These casts are no worse than others.
836 # Emacs doesn't care about shadowing; see
837 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
840 # Emacs's use of alloca inhibits protecting the stack.
841 nw="$nw -Wstack-protector"
843 # The following line should be removable at some point.
844 nw="$nw -Wsuggest-attribute=pure"
846 # This part is merely for shortening the command line,
847 # since -Wno-FOO needs to be added below regardless.
848 nw="$nw -Wmissing-field-initializers"
850 nw="$nw -Wtype-limits"
851 nw="$nw -Wunused-parameter"
853 if test $emacs_cv_clang = yes; then
854 nw="$nw -Wcast-align"
857 gl_MANYWARN_ALL_GCC([ws])
858 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
862 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
863 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
864 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
865 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
866 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
867 gl_WARN_ADD([-Wno-format-nonliteral])
869 # In spite of excluding -Wlogical-op above, it is enabled, as of
870 # gcc 4.5.0 20090517.
871 gl_WARN_ADD([-Wno-logical-op])
873 # More things that clang is unduly picky about.
874 if test $emacs_cv_clang = yes; then
875 gl_WARN_ADD([-Wno-format-extra-args])
876 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
877 gl_WARN_ADD([-Wno-unused-command-line-argument])
878 gl_WARN_ADD([-Wno-unused-value])
881 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
882 AH_VERBATIM([FORTIFY_SOURCE],
883 [/* Enable compile-time and run-time bounds-checking, and some warnings,
884 without upsetting glibc 2.15+. */
885 #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
886 # define _FORTIFY_SOURCE 2
889 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
891 # We use a slightly smaller set of warning options for lib/.
892 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
894 nw="$nw -Wunused-macros"
896 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
897 AC_SUBST([GNULIB_WARN_CFLAGS])
908 dnl Some other nice autoconf tests.
909 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
912 dnl if test "x$RANLIB" = x; then
917 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
918 dnl can be made to directories. This is not relevant for our usage, and
919 dnl excludes some cases that work fine for us. Eg MS Windows or files
920 dnl hosted on AFS, both examples where simple links work, but links to
921 dnl directories fail. We use a cut-down version instead.
924 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
925 rm -f conf$$ conf$$.file
927 LN_S_FILEONLY='cp -p'
929 dnl On MinGW, ensure we will call the MSYS /bin/ln.exe, not some
930 dnl random program in the current directory.
931 if (echo >conf$$.file) 2>/dev/null; then
932 if ln -s conf$$.file conf$$ 2>/dev/null; then
933 if test "$opsys" = "mingw32"; then
934 LN_S_FILEONLY='/bin/ln -s'
936 LN_S_FILEONLY='ln -s'
938 elif ln conf$$.file conf$$ 2>/dev/null; then
939 if test "$opsys" = "mingw32"; then
940 LN_S_FILEONLY=/bin/ln
947 rm -f conf$$ conf$$.file
949 if test "$LN_S_FILEONLY" = "ln -s"; then
952 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
955 AC_SUBST(LN_S_FILEONLY)
958 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
959 dnl doesn't support links to directories, as in "ln file dir". But that
960 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
961 dnl executables at "make install" time.
962 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
963 dnl for more details.
964 if test "$opsys" = "mingw32"; then
968 AC_PATH_PROG(INSTALL_INFO, install-info, :,
969 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
970 dnl Don't use GZIP, which is used by gzip for additional parameters.
971 AC_PATH_PROG(GZIP_PROG, gzip)
973 test $with_compress_install != yes && test -n "$GZIP_PROG" && \
974 GZIP_PROG=" # $GZIP_PROG # (disabled by configure --without-compress-install)"
976 if test $opsys = gnu-linux; then
977 AC_PATH_PROG(PAXCTL, paxctl,,
978 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
979 if test "X$PAXCTL" != X; then
980 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
981 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
982 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
983 else AC_MSG_RESULT(no); PAXCTL=""; fi])
986 if test "${SETFATTR+set}" != set; then
987 AC_CACHE_CHECK([for setfattr],
988 [emacs_cv_prog_setfattr],
990 if (setfattr -n user.pax.flags conftest.tmp) >/dev/null 2>&1; then
991 emacs_cv_prog_setfattr=yes
993 emacs_cv_prog_setfattr=no
995 if test "$emacs_cv_prog_setfattr" = yes; then
1001 AC_SUBST([SETFATTR])
1005 ## Need makeinfo >= 4.7 (?) to build the manuals.
1006 AC_PATH_PROG(MAKEINFO, makeinfo, no)
1007 dnl By this stage, configure has already checked for egrep and set EGREP,
1008 dnl or exited with an error if no egrep was found.
1009 if test "$MAKEINFO" != "no"; then
1011 $MAKEINFO --version 2> /dev/null |
1012 $EGREP 'texinfo[[^0-9]]*([[1-4]][[0-9]]+|[[5-9]]|4\.[[7-9]]|4\.[[1-6]][[0-9]]+)'
1018 ## Makeinfo is unusual. For a released Emacs, the manuals are
1019 ## pre-built, and not deleted by the normal clean rules. makeinfo is
1020 ## therefore in the category of "special tools" not normally required, which
1021 ## configure does not have to check for (eg autoconf itself).
1022 ## In a repository checkout on the other hand, the manuals are not included.
1023 ## So makeinfo is a requirement to build from the repository, and configure
1024 ## should test for it as it does for any other build requirement.
1025 ## We use the presence of $srcdir/info/emacs to distinguish a release,
1026 ## with pre-built manuals, from a repository checkout.
1029 if test "$MAKEINFO" = "no"; then
1031 if test "x${with_makeinfo}" = "xno"; then
1033 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
1034 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
1035 source tree does not seem to have pre-built manuals in the `info' directory.
1036 Either install a suitable version of makeinfo, or re-run configure
1037 with the `--without-makeinfo' option to build without the manuals.] )
1040 AC_SUBST(HAVE_MAKEINFO)
1042 dnl Just so that there is only a single place we need to edit.
1044 INFO_OPTS=--no-split
1048 if test $opsys = mingw32; then
1049 DOCMISC_W32=efaq-w32
1053 AC_SUBST(DOCMISC_W32)
1055 dnl Add our options to ac_link now, after it is set up.
1057 if test x$GCC = xyes; then
1058 test "x$GCC_LINK_TEST_OPTIONS" != x && \
1059 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1061 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
1062 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1065 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
1066 dnl If we can link with the flag, it shouldn't do any harm anyhow.
1067 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
1068 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
1069 dnl if not built to support GNU ld.
1071 dnl For a long time, -znocombreloc was added to LDFLAGS rather than
1072 dnl LD_SWITCH_SYSTEM_TEMACS. That is:
1073 dnl * inappropriate, as LDFLAGS is a user option but this is essential.
1074 dnl Eg "make LDFLAGS=... all" could run into problems,
1075 dnl http://bugs.debian.org/684788
1076 dnl * unnecessary, since temacs is the only thing that actually needs it.
1077 dnl Indeed this is where it was originally, prior to:
1078 dnl http://lists.gnu.org/archive/html/emacs-pretest-bug/2004-03/msg00170.html
1079 late_LDFLAGS="$LDFLAGS"
1080 if test x$GCC = xyes; then
1081 LDFLAGS_NOCOMBRELOC="-Wl,-znocombreloc"
1083 LDFLAGS_NOCOMBRELOC="-znocombreloc"
1086 LDFLAGS="$LDFLAGS $LDFLAGS_NOCOMBRELOC"
1088 AC_MSG_CHECKING([for -znocombreloc])
1089 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1090 [AC_MSG_RESULT(yes)],
1091 LDFLAGS_NOCOMBRELOC=
1092 [AC_MSG_RESULT(no)])
1094 LDFLAGS="$late_LDFLAGS"
1096 AC_CACHE_CHECK([whether addresses are sanitized],
1097 [emacs_cv_sanitize_address],
1100 [[#ifndef __has_feature
1101 #define __has_feature(f) 0
1103 #if defined __SANITIZE_ADDRESS__ || __has_feature (address_sanitizer)
1105 error "Addresses are not sanitized.";
1108 [emacs_cv_sanitize_address=yes],
1109 [emacs_cv_sanitize_address=no])])
1111 dnl The function dump-emacs will not be defined and temacs will do
1112 dnl (load "loadup") automatically unless told otherwise.
1113 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
1115 your-opsys-here) CANNOT_DUMP=yes ;;
1118 if test "$CANNOT_DUMP" = "yes"; then
1119 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1120 elif test "$emacs_cv_sanitize_address" = yes; then
1121 AC_MSG_WARN([[Addresses are sanitized; suggest CANNOT_DUMP=yes]])
1124 AC_SUBST(CANNOT_DUMP)
1127 UNEXEC_OBJ=unexelf.o
1129 # MSDOS uses unexcoff.o
1131 UNEXEC_OBJ=unexaix.o
1137 UNEXEC_OBJ=unexmacosx.o
1140 UNEXEC_OBJ=unexhp9k800.o
1143 UNEXEC_OBJ=unexw32.o
1146 # Use the Solaris dldump() function, called from unexsol.c, to dump
1147 # emacs, instead of the generic ELF dump code found in unexelf.c.
1148 # The resulting binary has a complete symbol table, and is better
1149 # for debugging and other observability tools (debuggers, pstack, etc).
1151 # If you encounter a problem using dldump(), please consider sending
1152 # a message to the OpenSolaris tools-linking mailing list:
1153 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1155 # It is likely that dldump() works with older Solaris too, but this has
1156 # not been tested, so for now this change is for Solaris 10 or newer.
1157 UNEXEC_OBJ=unexsol.o
1164 ## Let `ld' find image libs and similar things in /usr/local/lib.
1165 ## The system compiler, GCC, has apparently been modified to not
1166 ## look there, contrary to what a stock GCC would do.
1167 ### It's not our place to do this. See bug#10313#17.
1168 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1173 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1174 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1178 ### It's not our place to do this. See bug#10313#17.
1179 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1184 ## Han Boetes <han@boetes.org> says this is necessary,
1185 ## otherwise Emacs dumps core on elf systems.
1186 LD_SWITCH_SYSTEM="-Z"
1189 AC_SUBST(LD_SWITCH_SYSTEM)
1191 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1193 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1194 ## which has not been defined yet. When this was handled with cpp,
1195 ## it was expanded to null when configure sourced the s/*.h file.
1196 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1197 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1198 ## (or somesuch), but because it is supposed to go at the _front_
1199 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1200 ## Compare with the gnu-linux case below, which added to the end
1201 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1202 ## LD_SWITCH_SYSTEM_TEMACS.
1205 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1212 AC_CHECK_DECL([__ELF__])
1213 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1214 ## With ELF, make sure that all common symbols get allocated to in the
1215 ## data section. Otherwise, the dump of temacs may miss variables in
1216 ## the shared library that have been initialized. For example, with
1217 ## GNU libc, __malloc_initialized would normally be resolved to the
1218 ## shared library's .bss section, which is fatal.
1219 if test "x$GCC" = "xyes"; then
1220 C_SWITCH_MACHINE="-fno-common"
1222 AC_MSG_ERROR([Non-GCC compilers are not supported.])
1225 dnl This was the unexalpha.c case. Removed in 24.1, 2010-07-24,
1226 dnl albeit under the mistaken assumption that said file
1227 dnl was no longer used.
1228 AC_MSG_ERROR([Non-ELF systems are not supported since Emacs 24.1.])
1232 AC_SUBST(C_SWITCH_MACHINE)
1234 AC_SUBST(UNEXEC_OBJ)
1237 ## Some programs in src produce warnings saying certain subprograms
1238 ## are too complex and need a MAXMEM value greater than 2000 for
1239 ## additional optimization. --nils@exp-math.uni-essen.de
1240 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1241 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1242 if test "$opsys" = "mingw32"; then
1243 case "$canonical" in
1244 x86_64-*-mingw32) C_SWITCH_SYSTEM="-mtune=generic" ;;
1245 *) C_SWITCH_SYSTEM="-mtune=pentium4" ;;
1248 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1249 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1250 AC_SUBST(C_SWITCH_SYSTEM)
1255 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1256 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1258 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1260 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1262 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1264 ## Motif needs -lgen.
1265 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1268 AC_SUBST(LIBS_SYSTEM)
1270 ### Make sure subsequent tests use flags consistent with the build flags.
1272 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1273 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1275 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1278 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C89 or better.
1279 AC_DEFUN([AC_TYPE_SIZE_T])
1280 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1281 AC_DEFUN([AC_TYPE_UID_T])
1285 dnl Current possibilities handled by sed (aix4-2 -> aix,
1286 dnl gnu-linux -> gnu/linux, etc.):
1287 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1288 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1289 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1296 ## Adding -lm confuses the dynamic linker, so omit it.
1299 freebsd | dragonfly )
1300 SYSTEM_TYPE=berkeley-unix
1302 gnu-linux | gnu-kfreebsd )
1304 hpux10-20 | hpux11 )
1308 SYSTEM_TYPE=windows-nt
1310 dnl NB this may be adjusted below.
1312 SYSTEM_TYPE=berkeley-unix
1316 SYSTEM_TYPE=usg-unix-v
1322 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1323 [The type of system you are compiling for; sets `system-type'.])
1326 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1327 pre_PKG_CONFIG_LIBS=$LIBS
1329 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
1331 dnl This function definition taken from Gnome 2.0
1332 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
1333 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
1334 dnl also defines GSTUFF_PKG_ERRORS on error
1335 AC_DEFUN([PKG_CHECK_MODULES], [
1338 if test "$PKG_CONFIG" = "no" ; then
1339 ifelse([$4], , [AC_MSG_ERROR([
1340 *** 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])
1342 PKG_CONFIG_MIN_VERSION=0.9.0
1343 if "$PKG_CONFIG" --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
1344 AC_MSG_CHECKING(for $2)
1346 if "$PKG_CONFIG" --exists "$2" 2>&AS_MESSAGE_LOG_FD &&
1347 $1_CFLAGS=`"$PKG_CONFIG" --cflags "$2" 2>&AS_MESSAGE_LOG_FD` &&
1348 $1_LIBS=`"$PKG_CONFIG" --libs "$2" 2>&AS_MESSAGE_LOG_FD`; then
1349 $1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1350 $1_LIBS=`AS_ECHO(["$$1_LIBS"]) | sed -e 's,///*,/,g'`
1351 AC_MSG_RESULT([yes CFLAGS='$$1_CFLAGS' LIBS='$$1_LIBS'])
1357 ## If we have a custom action on failure, don't print errors, but
1358 ## do set a variable so people can do so. Do it in a subshell
1359 ## to capture any diagnostics in invoking pkg-config.
1360 $1_PKG_ERRORS=`("$PKG_CONFIG" --print-errors "$2") 2>&1`
1361 ifelse([$4], ,echo "$$1_PKG_ERRORS",)
1367 echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
1368 echo "*** See http://www.freedesktop.org/software/pkgconfig"
1372 if test $succeeded = yes; then
1373 ifelse([$3], , :, [$3])
1375 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.])], [$4])
1380 if test "${with_sound}" != "no"; then
1381 # Sound support for GNU/Linux, the free BSDs, and MinGW.
1382 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h],
1383 have_sound_header=yes, [], [
1385 #define WIN32_LEAN_AND_MEAN
1386 #include <windows.h>
1389 test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
1390 AC_MSG_ERROR([OSS sound support requested but not found.])
1392 if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
1393 # Emulation library used on NetBSD.
1394 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1395 test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
1396 AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
1397 dnl FIXME? If we did find ossaudio, should we set with_sound=bsd-ossaudio?
1398 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1402 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1404 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1405 PKG_CHECK_MODULES(ALSA, $ALSA_MODULES, HAVE_ALSA=yes, HAVE_ALSA=no)
1406 if test $HAVE_ALSA = yes; then
1407 SAVE_CFLAGS="$CFLAGS"
1409 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1410 LIBS="$ALSA_LIBS $LIBS"
1411 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1412 emacs_alsa_normal=yes,
1413 emacs_alsa_normal=no)
1414 if test "$emacs_alsa_normal" != yes; then
1415 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1416 [[snd_lib_error_set_handler (0);]])],
1417 emacs_alsa_subdir=yes,
1418 emacs_alsa_subdir=no)
1419 if test "$emacs_alsa_subdir" != yes; then
1420 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1422 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1425 CFLAGS="$SAVE_CFLAGS"
1427 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1428 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1429 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1430 elif test "${with_sound}" = "alsa"; then
1431 AC_MSG_ERROR([ALSA sound support requested but not found.])
1433 fi dnl with_sound = alsa|yes
1435 dnl Define HAVE_SOUND if we have sound support. We know it works and
1436 dnl compiles only on the specified platforms. For others, it
1437 dnl probably doesn't make sense to try.
1438 dnl FIXME So surely we should bypass this whole section if not using
1439 dnl one of these platforms?
1440 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1442 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1443 dnl Adjust the --with-sound help text if you change this.
1444 gnu-linux|freebsd|netbsd|mingw32)
1445 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1451 AC_SUBST(CFLAGS_SOUND)
1454 dnl checks for header files
1455 AC_CHECK_HEADERS_ONCE(
1459 sys/utsname.h pwd.h utmp.h util.h)
1461 AC_MSG_CHECKING(if personality LINUX32 can be set)
1462 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1463 emacs_cv_personality_linux32=yes,
1464 emacs_cv_personality_linux32=no)
1465 AC_MSG_RESULT($emacs_cv_personality_linux32)
1467 if test $emacs_cv_personality_linux32 = yes; then
1468 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1469 [Define to 1 if personality LINUX32 can be set.])
1472 dnl On Solaris 8 there's a compilation warning for term.h because
1473 dnl it doesn't define `bool'.
1474 AC_CHECK_HEADERS(term.h, , , -)
1476 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1478 if test $ac_cv_have_decl_sys_siglist != yes; then
1479 # For Tru64, at least:
1480 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1485 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1486 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1487 #if HAVE_SYS_SOCKET_H
1488 #include <sys/socket.h>
1490 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1491 #if HAVE_SYS_SOCKET_H
1492 #include <sys/socket.h>
1494 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1495 #if HAVE_SYS_SOCKET_H
1496 #include <sys/socket.h>
1499 dnl checks for structure members
1500 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1501 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1502 struct ifreq.ifr_addr,
1503 struct ifreq.ifr_addr.sa_len], , ,
1504 [AC_INCLUDES_DEFAULT
1505 #if HAVE_SYS_SOCKET_H
1506 #include <sys/socket.h>
1512 dnl Check for endianness.
1513 dnl AC_C_BIGENDIAN is done by gnulib.
1515 dnl check for Make feature
1516 dnl AC_PROG_MAKE_SET is done by Automake.
1521 dnl check for GNU Make if we have GCC and autodepend is on.
1522 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1523 AC_MSG_CHECKING([whether we are using GNU Make])
1525 testval=`${MAKE-make} --version 2>/dev/null | grep 'GNU Make'`
1526 if test "x$testval" != x; then
1529 ac_enable_autodepend=no
1531 AC_MSG_RESULT([$HAVE_GNU_MAKE])
1532 if test $HAVE_GNU_MAKE = yes; then
1533 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1534 SAVE_CFLAGS="$CFLAGS"
1535 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1536 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1537 CFLAGS="$SAVE_CFLAGS"
1538 test -f deps.d || ac_enable_autodepend=no
1540 AC_MSG_RESULT([$ac_enable_autodepend])
1542 if test $ac_enable_autodepend = yes; then
1543 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1544 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1545 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1546 deps_frag=autodeps.mk
1549 deps_frag=$srcdir/src/$deps_frag
1552 AC_SUBST_FILE(deps_frag)
1555 lisp_frag=$srcdir/src/lisp.mk
1556 AC_SUBST_FILE(lisp_frag)
1559 dnl checks for operating system services
1560 AC_SYS_LONG_FILE_NAMES
1562 #### Choose a window system.
1564 ## We leave window_system equal to none if
1565 ## we end up building without one. Any new window system should
1566 ## set window_system to an appropriate value and add objects to
1567 ## window-system-specific substs.
1571 if test "$no_x" != yes; then
1575 LD_SWITCH_X_SITE_RPATH=
1576 if test "${x_libraries}" != NONE; then
1577 if test -n "${x_libraries}"; then
1578 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1579 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1581 x_default_search_path=""
1582 x_search_path=${x_libraries}
1583 if test -z "${x_search_path}"; then
1584 x_search_path=/usr/lib
1586 for x_library in `echo ${x_search_path}: | \
1587 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1589 ${x_library}/X11/%L/%T/%N%C%S:\
1590 ${x_library}/X11/%l/%T/%N%C%S:\
1591 ${x_library}/X11/%T/%N%C%S:\
1592 ${x_library}/X11/%L/%T/%N%S:\
1593 ${x_library}/X11/%l/%T/%N%S:\
1594 ${x_library}/X11/%T/%N%S"
1595 if test x"${x_default_search_path}" = x; then
1596 x_default_search_path=${x_search_path}
1598 x_default_search_path="${x_search_path}:${x_default_search_path}"
1602 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1604 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1605 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1608 if test x"${x_includes}" = x; then
1609 bitmapdir=/usr/include/X11/bitmaps
1611 # accumulate include directories that have X11 bitmap subdirectories
1613 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1614 if test -d "${bmd}/X11/bitmaps"; then
1615 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1617 if test -d "${bmd}/bitmaps"; then
1618 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1621 if test ${bmd_acc} != "dummyval"; then
1622 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1629 tmp_CPPFLAGS="$CPPFLAGS"
1630 tmp_CFLAGS="$CFLAGS"
1631 CPPFLAGS="$CPPFLAGS -x objective-c"
1632 CFLAGS="$CFLAGS -x objective-c"
1635 if test "${with_ns}" != no; then
1636 if test "${opsys}" = darwin; then
1638 ns_appdir=`pwd`/nextstep/Emacs.app
1639 ns_appbindir=${ns_appdir}/Contents/MacOS
1640 ns_appresdir=${ns_appdir}/Contents/Resources
1641 ns_appsrc=Cocoa/Emacs.base
1642 elif test -f $GNUSTEP_CONFIG_FILE; then
1644 ns_appdir=`pwd`/nextstep/Emacs.app
1645 ns_appbindir=${ns_appdir}
1646 ns_appresdir=${ns_appdir}/Resources
1647 ns_appsrc=GNUstep/Emacs.base
1648 dnl FIXME sourcing this several times in subshells seems inefficient.
1649 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1650 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1651 dnl I seemed to need these as well with GNUstep-startup 0.25.
1652 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1653 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1654 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1655 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1656 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1657 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1658 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1659 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1660 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1661 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1662 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1663 dnl If they had chosen to either define it or not, we could have
1664 dnl just used AC_CHECK_DECL here.
1665 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1666 emacs_cv_objc_exceptions,
1667 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1668 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1672 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1673 if test $emacs_cv_objc_exceptions = yes; then
1674 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1675 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1676 [Define if GNUstep uses ObjC exceptions.])
1677 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1681 dnl This is only used while we test the NS headers, it gets reset below.
1682 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1684 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1685 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1686 files are missing or cannot be compiled.])])
1689 if test "${NS_IMPL_COCOA}" = "yes"; then
1690 AC_MSG_CHECKING([for OSX 10.4 or newer])
1691 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1693 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1694 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
1697 error "OSX 10.4 or newer required";
1701 ns_osx_have_104=yes,
1703 AC_MSG_RESULT([$ns_osx_have_104])
1705 if test $ns_osx_have_104 = no; then
1706 AC_MSG_ERROR([`OSX 10.4 or newer is required']);
1708 AC_MSG_CHECKING([for OSX 10.5 or newer])
1709 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1711 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1712 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1050
1715 error "OSX 10.5 not found";
1719 ns_osx_have_105=yes,
1721 AC_MSG_RESULT([$ns_osx_have_105])
1722 if test $ns_osx_have_105 = yes; then
1723 macfont_file="macfont.o"
1726 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1728 ns_have_nsinteger=yes,
1729 ns_have_nsinteger=no)
1730 if test $ns_have_nsinteger = yes; then
1731 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1735 AC_SUBST(LIBS_GNUSTEP)
1737 INSTALL_ARCH_INDEP_EXTRA=install-etc
1738 ns_self_contained=no
1741 if test "${HAVE_NS}" = yes; then
1742 if test "$with_toolkit_scroll_bars" = "no"; then
1743 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1746 window_system=nextstep
1747 # set up packaging dirs
1748 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1749 ns_self_contained=yes
1750 prefix=${ns_appresdir}
1751 exec_prefix=${ns_appbindir}
1752 dnl This one isn't really used, only archlibdir is.
1753 libexecdir="\${ns_appbindir}/libexec"
1754 archlibdir="\${ns_appbindir}/libexec"
1755 etcdocdir="\${ns_appresdir}/etc"
1756 etcdir="\${ns_appresdir}/etc"
1757 dnl FIXME maybe set datarootdir instead.
1758 dnl That would also get applications, icons, man.
1759 infodir="\${ns_appresdir}/info"
1760 mandir="\${ns_appresdir}/man"
1761 lispdir="\${ns_appresdir}/lisp"
1762 INSTALL_ARCH_INDEP_EXTRA=
1765 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o $macfont_file"
1767 CFLAGS="$tmp_CFLAGS"
1768 CPPFLAGS="$tmp_CPPFLAGS"
1769 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1770 AC_SUBST(ns_self_contained)
1772 AC_SUBST(NS_OBJC_OBJ)
1783 if test "${with_w32}" != no; then
1786 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1787 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1788 cannot be found.])])
1791 ## Using --with-w32 with MinGW is a no-op, but we allow it.
1794 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
1799 if test "${opsys}" = "mingw32"; then
1800 AC_MSG_CHECKING([whether Windows API headers are recent enough])
1801 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1802 #include <windows.h>
1803 #include <usp10.h>]],
1804 [[PIMAGE_NT_HEADERS pHeader;
1805 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
1806 [emacs_cv_w32api=yes
1809 AC_MSG_RESULT($emacs_cv_w32api)
1810 if test "${emacs_cv_w32api}" = "no"; then
1811 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
1822 if test "${HAVE_W32}" = "yes"; then
1823 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1824 AC_CHECK_TOOL(WINDRES, [windres],
1825 [AC_MSG_ERROR([No resource compiler found.])])
1826 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1827 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1828 EMACSRES="emacs.res"
1829 case "$canonical" in
1830 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
1831 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
1833 if test "${opsys}" = "cygwin"; then
1834 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1835 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1836 # Tell the linker that emacs.res is an object (which we compile from
1837 # the rc file), not a linker script.
1838 W32_RES_LINK="-Wl,emacs.res"
1840 UPDATE_MANIFEST=update-game-score.exe.manifest
1841 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
1842 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
1843 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
1844 W32_RES_LINK="\$(EMACSRES)"
1845 CLIENTRES="emacsclient.res"
1846 CLIENTW="emacsclientw\$(EXEEXT)"
1847 FIRSTFILE_OBJ=firstfile.o
1850 LIBS_ECLIENT="-lcomctl32"
1851 LIB_WSOCK32="-lwsock32"
1852 NTLIB="ntlib.$ac_objext"
1853 XARGS_LIMIT="-s 10000"
1859 AC_SUBST(EMACS_MANIFEST)
1860 AC_SUBST(UPDATE_MANIFEST)
1863 AC_SUBST(W32_RES_LINK)
1864 AC_SUBST(FIRSTFILE_OBJ)
1867 AC_SUBST(LIBS_ECLIENT)
1868 AC_SUBST(LIB_WSOCK32)
1870 AC_SUBST(XARGS_LIMIT)
1872 if test "${HAVE_W32}" = "yes"; then
1877 ## $window_system is now set to the window system we will
1880 if test "$window_system" = none && test "$gl_gcc_warnings" = yes; then
1881 # Too many warnings for now.
1883 nw="$nw -Wsuggest-attribute=const"
1884 nw="$nw -Wsuggest-attribute=noreturn"
1885 gl_MANYWARN_COMPLEMENT([WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
1887 gl_WARN_ADD([-Wno-unused-variable])
1888 gl_WARN_ADD([-Wno-unused-but-set-variable])
1889 gl_WARN_ADD([-Wno-unused-but-set-parameter])
1897 case "${window_system}" in
1902 case "${with_x_toolkit}" in
1903 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1904 motif ) USE_X_TOOLKIT=MOTIF ;;
1906 term_header=gtkutil.h
1907 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1908 dnl USE_X_TOOLKIT is set.
1909 USE_X_TOOLKIT=none ;;
1910 gtk2 ) with_gtk2=yes
1911 term_header=gtkutil.h
1912 USE_X_TOOLKIT=none ;;
1913 gtk3 ) with_gtk3=yes
1914 term_header=gtkutil.h
1915 USE_X_TOOLKIT=none ;;
1916 no ) USE_X_TOOLKIT=none ;;
1917 dnl If user did not say whether to use a toolkit, make this decision later:
1918 dnl use the toolkit if we have gtk, or X11R5 or newer.
1919 * ) USE_X_TOOLKIT=maybe ;;
1923 term_header=nsterm.h
1926 term_header=w32term.h
1930 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1931 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1932 if test "$HAVE_XSERVER" = true ||
1933 test -n "$DISPLAY" ||
1934 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1935 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1936 were found. You should install the relevant development files for X
1937 and for the toolkit you want, such as Gtk+ or Motif. Also make
1938 sure you have development files for image handling, i.e.
1939 tiff, gif, jpeg, png and xpm.
1940 If you are sure you want Emacs compiled without X window support, pass
1946 # Does the opsystem file prohibit the use of the GNU malloc?
1947 # Assume not, until told otherwise.
1951 [whether malloc is Doug Lea style],
1952 [emacs_cv_var_doug_lea_malloc],
1953 [emacs_cv_var_doug_lea_malloc=no
1954 dnl Hooks do not work with address sanitization.
1955 if test "$emacs_cv_sanitize_address" != yes; then
1958 [[#include <malloc.h>
1959 static void hook (void) {}]],
1960 [[malloc_set_state (malloc_get_state ());
1961 __after_morecore_hook = hook;
1962 __malloc_initialize_hook = hook;]])],
1963 [emacs_cv_var_doug_lea_malloc=yes])])
1965 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1967 system_malloc=$emacs_cv_sanitize_address
1969 ## darwin ld insists on the use of malloc routines in the System framework.
1970 darwin|sol2-10) system_malloc=yes ;;
1974 if test "${system_malloc}" = "yes"; then
1975 AC_DEFINE([SYSTEM_MALLOC], 1,
1976 [Define to 1 to use the system memory allocator, even if it is not
1980 (The GNU allocators don't work with this system configuration.)"
1983 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1984 VMLIMIT_OBJ=vm-limit.o
1986 AC_CHECK_HEADERS([sys/vlimit.h])
1987 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
1990 [[extern char data_start[]; char ch;]],
1991 [[return data_start < &ch;]])],
1992 [emacs_cv_data_start=yes],
1993 [emacs_cv_data_start=no])])
1994 if test $emacs_cv_data_start = yes; then
1995 AC_DEFINE([HAVE_DATA_START], 1,
1996 [Define to 1 if data_start is the address of the start
1997 of the main data segment.])
2000 AC_SUBST(GMALLOC_OBJ)
2001 AC_SUBST(VMLIMIT_OBJ)
2003 if test "$doug_lea_malloc" = "yes" ; then
2004 if test "$GNU_MALLOC" = yes ; then
2006 (Using Doug Lea's new malloc from the GNU C Library.)"
2008 AC_DEFINE(DOUG_LEA_MALLOC, 1,
2009 [Define to 1 if the system memory allocator is Doug Lea style,
2010 with malloc hooks and malloc_set_state.])
2012 ## Use mmap directly for allocating larger buffers.
2013 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
2014 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
2015 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
2017 gnu*) REL_ALLOC=no ;;
2021 if test x"${REL_ALLOC}" = x; then
2022 REL_ALLOC=${GNU_MALLOC}
2025 use_mmap_for_buffers=no
2027 cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
2031 if test $use_mmap_for_buffers = yes; then
2032 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
2036 LIBS="$LIBS_SYSTEM $LIBS"
2038 dnl If found, this adds -ldnet to LIBS, which Autoconf uses for checks.
2039 AC_CHECK_LIB(dnet, dnet_ntoa)
2040 dnl This causes -lresolv to get used in subsequent tests,
2041 dnl which causes failures on some systems such as HPUX 9.
2042 dnl AC_CHECK_LIB(resolv, gethostbyname)
2044 dnl FIXME replace main with a function we actually want from this library.
2045 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
2047 dnl Check if pthreads is available.
2049 AC_CHECK_HEADERS_ONCE(pthread.h)
2050 if test "$ac_cv_header_pthread_h"; then
2051 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
2052 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
2053 dnl testing for pthread_self if Emacs uses gmalloc.c.
2054 if test "$GMALLOC_OBJ" = gmalloc.o; then
2055 emacs_pthread_function=pthread_atfork
2057 emacs_pthread_function=pthread_self
2059 AC_CHECK_LIB(pthread, $emacs_pthread_function, HAVE_PTHREAD=yes)
2061 if test "$HAVE_PTHREAD" = yes; then
2062 case "${canonical}" in
2064 *) LIB_PTHREAD="-lpthread"
2065 LIBS="$LIB_PTHREAD $LIBS" ;;
2067 AC_DEFINE(HAVE_PTHREAD, 1, [Define to 1 if you have pthread (-lpthread).])
2069 AC_SUBST([LIB_PTHREAD])
2071 AC_CHECK_LIB(pthreads, cma_open)
2073 ## Note: when using cpp in s/aix4.2.h, this definition depended on
2074 ## HAVE_LIBPTHREADS. That was not defined earlier in configure when
2075 ## the system file was sourced. Hence the value of LIBS_SYSTEM
2076 ## added to LIBS in configure would never contain the pthreads part,
2077 ## but the value used in Makefiles might. FIXME?
2079 ## -lpthreads seems to be necessary for Xlib in X11R6, and should
2080 ## be harmless on older versions of X where it happens to exist.
2081 test "$opsys" = "aix4-2" && \
2082 test $ac_cv_lib_pthreads_cma_open = yes && \
2083 LIBS_SYSTEM="$LIBS_SYSTEM -lpthreads"
2085 dnl Check for need for bigtoc support on IBM AIX
2089 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
2091 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
2092 *) gdb_cv_bigtoc=-bbigtoc ;;
2095 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
2096 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
2101 # Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
2102 # used for the tests that follow. We set them back to REAL_CFLAGS and
2103 # REAL_CPPFLAGS later on.
2105 REAL_CFLAGS="$CFLAGS"
2106 REAL_CPPFLAGS="$CPPFLAGS"
2108 if test "${HAVE_X11}" = "yes"; then
2109 DEFS="$C_SWITCH_X_SITE $DEFS"
2110 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2112 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2113 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2115 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2116 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2117 # but it's more convenient here to set LD_RUN_PATH since this
2118 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2119 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2120 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2124 if test "${opsys}" = "gnu-linux"; then
2125 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2126 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2127 [[XOpenDisplay ("foo");]])],
2128 [xgnu_linux_first_failure=no],
2129 [xgnu_linux_first_failure=yes])
2130 if test "${xgnu_linux_first_failure}" = "yes"; then
2131 OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
2132 OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
2133 OLD_CPPFLAGS="$CPPFLAGS"
2135 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2136 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2137 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2138 LIBS="$LIBS -b i486-linuxaout"
2139 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2140 [[XOpenDisplay ("foo");]])],
2141 [xgnu_linux_second_failure=no],
2142 [xgnu_linux_second_failure=yes])
2143 if test "${xgnu_linux_second_failure}" = "yes"; then
2144 # If we get the same failure with -b, there is no use adding -b.
2145 # So take it out. This plays safe.
2146 LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
2147 C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
2148 CPPFLAGS="$OLD_CPPFLAGS"
2159 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2160 # header files included from there.
2161 AC_MSG_CHECKING(for Xkb)
2162 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2163 #include <X11/XKBlib.h>]],
2164 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2165 emacs_xkb=yes, emacs_xkb=no)
2166 AC_MSG_RESULT($emacs_xkb)
2167 if test $emacs_xkb = yes; then
2168 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2171 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2172 XScreenNumberOfScreen)
2175 if test "${window_system}" = "x11"; then
2176 AC_MSG_CHECKING(X11 version 6)
2177 AC_CACHE_VAL(emacs_cv_x11_version_6,
2178 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2179 [[#if XlibSpecificationRelease < 6
2182 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2183 if test $emacs_cv_x11_version_6 = yes; then
2184 AC_MSG_RESULT(6 or newer)
2185 AC_DEFINE(HAVE_X11R6, 1,
2186 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2187 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2188 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2192 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2193 [Define if you have usable X11R6-style XIM support.])
2197 AC_MSG_RESULT(before 6)
2202 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
2204 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2205 if test "${with_rsvg}" != "no"; then
2206 RSVG_REQUIRED=2.11.0
2207 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2209 PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, HAVE_RSVG=yes, :)
2210 AC_SUBST(RSVG_CFLAGS)
2213 if test $HAVE_RSVG = yes; then
2214 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2215 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2216 # Windows loads librsvg dynamically
2217 if test "${opsys}" = "mingw32"; then
2220 LIBS="$RSVG_LIBS $LIBS"
2226 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${HAVE_W32}" = "yes"; then
2227 if test "${with_imagemagick}" != "no"; then
2228 ## 6.3.5 is the earliest version known to work; see Bug#17339.
2229 ## 6.8.2 makes Emacs crash; see Bug#13867.
2230 IMAGEMAGICK_MODULE="Wand >= 6.3.5 Wand != 6.8.2"
2231 PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
2232 AC_SUBST(IMAGEMAGICK_CFLAGS)
2233 AC_SUBST(IMAGEMAGICK_LIBS)
2235 if test $HAVE_IMAGEMAGICK = yes; then
2236 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2237 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2238 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2239 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
2247 gtk_term_header=$term_header
2250 if test "${opsys}" != "mingw32"; then
2251 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2254 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2256 dnl Checks for libraries.
2257 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
2258 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2259 AC_MSG_ERROR($GTK_PKG_ERRORS)
2261 if test "$pkg_check_gtk" = "yes"; then
2262 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2263 GTK_OBJ=emacsgtkfixed.o
2264 gtk_term_header=gtkutil.h
2265 USE_GTK_TOOLKIT="GTK3"
2266 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2267 AC_DEFINE([GDK_DISABLE_DEPRECATION_WARNINGS], [1],
2268 [Define to 1 to disable GTK+/GDK deprecation warnings.])
2269 AC_DEFINE([GLIB_DISABLE_DEPRECATION_WARNINGS], [1],
2270 [Define to 1 to disable Glib deprecation warnings.])
2274 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2278 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2281 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2283 dnl Checks for libraries.
2284 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
2285 if test "$pkg_check_gtk" = "no" &&
2286 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2288 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2290 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2294 if test x"$pkg_check_gtk" = xyes; then
2297 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2298 CFLAGS="$CFLAGS $GTK_CFLAGS"
2299 LIBS="$GTK_LIBS $LIBS"
2300 dnl Try to compile a simple GTK program.
2301 AC_MSG_CHECKING([whether GTK compiles])
2305 [[/* Check the Gtk and Glib APIs. */
2306 #include <gtk/gtk.h>
2307 #include <glib-object.h>
2309 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2313 GtkSettings *gs = 0;
2314 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2315 strict C prohibits this. Use gtk_main_iteration to test that the
2316 libraries are there. */
2317 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2318 0, 0, 0, G_CALLBACK (callback), 0))
2319 gtk_main_iteration ();
2322 AC_MSG_RESULT([$GTK_COMPILES])
2323 if test "${GTK_COMPILES}" != "yes"; then
2325 if test "$USE_X_TOOLKIT" != "maybe"; then
2326 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2330 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2331 GTK_OBJ="gtkutil.o $GTK_OBJ"
2332 term_header=$gtk_term_header
2334 if "$PKG_CONFIG" --atleast-version=2.10 gtk+-2.0; then
2337 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2338 closing open displays. This is no problem if you just use
2339 one display, but if you use more than one and close one of them
2349 if test "${HAVE_GTK}" = "yes"; then
2351 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2352 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2353 if test "$with_toolkit_scroll_bars" != no; then
2354 with_toolkit_scroll_bars=yes
2357 dnl Check if we have the old file selection dialog declared and
2358 dnl in the link library. In 2.x it may be in the library,
2359 dnl but not declared if deprecated featured has been selected out.
2360 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2361 HAVE_GTK_FILE_SELECTION=no
2362 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2363 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2364 #include <gtk/gtk.h>])
2365 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2366 AC_CHECK_FUNCS(gtk_file_selection_new)
2369 dnl Same as above for gtk_handle_box.
2370 HAVE_GTK_HANDLE_BOX=no
2371 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2372 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2373 #include <gtk/gtk.h>])
2374 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2375 AC_CHECK_FUNCS(gtk_handle_box_new)
2378 dnl Same as above for gtk_tearoff_menu_item.
2379 HAVE_GTK_TEAROFF_MENU_ITEM=no
2380 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2381 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2382 #include <gtk/gtk.h>])
2383 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2384 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2387 dnl Check for functions introduced in 2.14 and later.
2388 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2389 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2390 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2391 gtk_orientable_set_orientation \
2392 gtk_window_set_has_resize_grip)
2394 term_header=gtkutil.h
2397 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2398 dnl other platforms.
2401 if test "${with_dbus}" = "yes"; then
2402 PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
2403 if test "$HAVE_DBUS" = yes; then
2404 LIBS="$LIBS $DBUS_LIBS"
2405 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2406 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2407 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2409 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2410 dbus_type_is_valid \
2411 dbus_validate_bus_name \
2412 dbus_validate_path \
2413 dbus_validate_interface \
2414 dbus_validate_member)
2420 dnl GSettings has been tested under GNU/Linux only.
2422 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2423 PKG_CHECK_MODULES(GSETTINGS, gio-2.0 >= 2.26, HAVE_GSETTINGS=yes, HAVE_GSETTINGS=no)
2424 if test "$HAVE_GSETTINGS" = "yes"; then
2426 CFLAGS="$CFLAGS $GSETTINGS_CFLAGS"
2428 LIBS="$LIBS $GSETTINGS_LIBS"
2429 AC_MSG_CHECKING([whether GSettings is in gio])
2432 [[/* Check that gsettings really is present. */
2433 #include <glib-object.h>
2434 #include <gio/gio.h>
2437 GSettings *settings;
2438 GVariant *val = g_settings_get_value (settings, "");
2440 [], HAVE_GSETTINGS=no)
2441 AC_MSG_RESULT([$HAVE_GSETTINGS])
2443 if test "$HAVE_GSETTINGS" = "yes"; then
2444 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2445 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2446 SETTINGS_LIBS="$GSETTINGS_LIBS"
2453 dnl GConf has been tested under GNU/Linux only.
2454 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2456 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2457 PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
2458 if test "$HAVE_GCONF" = yes; then
2459 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2460 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2461 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2462 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2466 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2467 PKG_CHECK_MODULES(GOBJECT, gobject-2.0 >= 2.0, HAVE_GOBJECT=yes, HAVE_GOBJECT=no)
2468 if test "$HAVE_GOBJECT" = "yes"; then
2469 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2470 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2472 SAVE_CFLAGS="$CFLAGS"
2474 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2475 LIBS="$SETTINGS_LIBS $LIBS"
2476 CFLAGS="$SAVE_CFLAGS"
2479 AC_SUBST(SETTINGS_CFLAGS)
2480 AC_SUBST(SETTINGS_LIBS)
2483 dnl SELinux is available for GNU/Linux only.
2486 if test "${with_selinux}" = "yes"; then
2487 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2488 if test "$HAVE_LIBSELINUX" = yes; then
2489 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2490 LIBSELINUX_LIBS=-lselinux
2493 AC_SUBST(LIBSELINUX_LIBS)
2497 if test "${with_gnutls}" = "yes" ; then
2498 PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 3.0.0], HAVE_GNUTLS3=yes, HAVE_GNUTLS3=no)
2499 if test "${HAVE_GNUTLS3}" = "yes"; then
2500 AC_DEFINE(HAVE_GNUTLS3, 1, [Define if using GnuTLS v3.])
2503 PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6], HAVE_GNUTLS=yes, HAVE_GNUTLS=no)
2505 if test "${HAVE_GNUTLS}" = "yes"; then
2506 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2509 # Windows loads GnuTLS dynamically
2510 if test "${opsys}" = "mingw32"; then
2515 AC_SUBST(LIBGNUTLS_LIBS)
2516 AC_SUBST(LIBGNUTLS_CFLAGS)
2521 dnl FIXME? Don't auto-detect on NS, but do allow someone to specify
2522 dnl a particular library. This doesn't make much sense?
2523 if test "${with_ns}" = yes && test ${with_file_notification} = yes; then
2524 with_file_notification=no
2527 dnl MS Windows native file monitor is available for mingw32 only.
2528 case $with_file_notification,$opsys in
2529 w32,* | yes,mingw32)
2530 AC_CHECK_HEADER(windows.h)
2531 if test "$ac_cv_header_windows_h" = yes ; then
2532 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2533 NOTIFY_OBJ=w32notify.o
2534 NOTIFY_SUMMARY="yes (w32)"
2538 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2539 dnl has been added in glib 2.24. It has been tested under
2540 dnl GNU/Linux only. We take precedence over inotify, but this makes
2541 dnl only sense when glib has been compiled with inotify support. How
2543 case $with_file_notification,$NOTIFY_OBJ in
2545 PKG_CHECK_MODULES(GFILENOTIFY, gio-2.0 >= 2.24, HAVE_GFILENOTIFY=yes, HAVE_GFILENOTIFY=no)
2546 if test "$HAVE_GFILENOTIFY" = "yes"; then
2547 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2548 NOTIFY_OBJ=gfilenotify.o
2549 NOTIFY_SUMMARY="yes -lgio (gfile)"
2553 dnl inotify is only available on GNU/Linux.
2554 case $with_file_notification,$NOTIFY_OBJ in
2556 AC_CHECK_HEADER(sys/inotify.h)
2557 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2558 AC_CHECK_FUNC(inotify_init1)
2559 if test "$ac_cv_func_inotify_init1" = yes; then
2560 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2561 NOTIFY_OBJ=inotify.o
2562 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2567 case $with_file_notification,$NOTIFY_OBJ in
2568 yes,* | no,* | *,?*) ;;
2569 *) AC_MSG_ERROR([File notification `$with_file_notification' requested but requirements not found.]) ;;
2572 if test -n "$NOTIFY_OBJ"; then
2573 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2575 AC_SUBST(NOTIFY_OBJ)
2576 AC_SUBST(GFILENOTIFY_CFLAGS)
2577 AC_SUBST(GFILENOTIFY_LIBS)
2579 dnl Do not put whitespace before the #include statements below.
2580 dnl Older compilers (eg sunos4 cc) choke on it.
2583 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2584 if test "$with_xaw3d" != no; then
2585 AC_CACHE_VAL(emacs_cv_xaw3d,
2586 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2587 #include <X11/Intrinsic.h>
2588 #include <X11/Xaw3d/Simple.h>]],
2590 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2591 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2592 emacs_cv_xaw3d=no)])
2596 if test $emacs_cv_xaw3d = yes; then
2597 AC_MSG_CHECKING(for xaw3d)
2598 AC_MSG_RESULT([yes; using Lucid toolkit])
2602 AC_DEFINE(HAVE_XAW3D, 1,
2603 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2605 AC_MSG_CHECKING(for xaw3d)
2607 AC_MSG_CHECKING(for libXaw)
2608 AC_CACHE_VAL(emacs_cv_xaw,
2609 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2610 #include <X11/Intrinsic.h>
2611 #include <X11/Xaw/Simple.h>]],
2615 if test $emacs_cv_xaw = yes; then
2616 AC_MSG_RESULT([yes; using Lucid toolkit])
2619 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2620 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2622 AC_MSG_ERROR([No X toolkit could be found.
2623 If you are sure you want Emacs compiled without an X toolkit, pass
2625 to configure. Otherwise, install the development libraries for the toolkit
2626 that you want to use (e.g. Gtk+) and re-run configure.])
2631 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2634 if test "${USE_X_TOOLKIT}" != "none"; then
2635 AC_MSG_CHECKING(X11 toolkit version)
2636 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2637 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2638 [[#if XtSpecificationRelease < 6
2641 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2642 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2643 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2644 AC_MSG_RESULT(6 or newer)
2645 AC_DEFINE(HAVE_X11XTR6, 1,
2646 [Define to 1 if you have the X11R6 or newer version of Xt.])
2647 LIBXTR6="-lSM -lICE"
2649 ## Use libw.a along with X11R6 Xt.
2650 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2653 AC_MSG_RESULT(before 6)
2656 dnl If using toolkit, check whether libXmu.a exists.
2657 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2659 if test x$HAVE_X11XTR6 = xyes; then
2660 LIBS="-lXt -lSM -lICE $LIBS"
2664 AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
2665 test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
2666 dnl ac_cv_lib_Xmu_XmuConvertStandardSelection is also referenced below.
2670 dnl FIXME the logic here seems weird, but this is what cpp was doing.
2671 dnl Why not just test for libxmu in the normal way?
2674 ## These systems don't supply Xmu.
2676 test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
2684 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
2685 if test "${HAVE_X11}" = "yes"; then
2686 if test "${USE_X_TOOLKIT}" != "none"; then
2687 AC_CHECK_LIB(Xext, XShapeQueryExtension)
2692 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2693 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2694 if test -d /usr/include/openmotif; then
2695 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2696 emacs_cv_openmotif=yes
2697 case "$canonical" in
2698 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2699 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2702 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2705 emacs_cv_openmotif=no
2707 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2708 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2709 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2712 Motif version prior to 2.1.
2714 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2715 if test $emacs_cv_motif_version_2_1 = yes; then
2716 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2717 if test x$emacs_cv_openmotif = xyes; then
2718 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2721 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2722 # We put this in CFLAGS temporarily to precede other -I options
2723 # that might be in CFLAGS temporarily.
2724 # We put this in CPPFLAGS where it precedes the other -I options.
2725 OLD_CPPFLAGS=$CPPFLAGS
2727 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2728 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2729 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2731 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2732 if test $emacs_cv_lesstif = yes; then
2733 # Make sure this -I option remains in CPPFLAGS after it is set
2734 # back to REAL_CPPFLAGS.
2735 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2736 # have those other -I options anyway. Ultimately, having this
2737 # directory ultimately in CPPFLAGS will be enough.
2738 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2739 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2742 CPPFLAGS=$OLD_CPPFLAGS
2745 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2746 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2749 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2750 dnl using Motif or Xaw3d is available, and unless
2751 dnl --with-toolkit-scroll-bars=no was specified.
2753 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2754 [Define to 1 if we should use toolkit scroll bars.])dnl
2755 USE_TOOLKIT_SCROLL_BARS=no
2756 if test "${with_toolkit_scroll_bars}" != "no"; then
2757 if test "${USE_X_TOOLKIT}" != "none"; then
2758 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2759 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2761 USE_TOOLKIT_SCROLL_BARS=yes
2762 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2763 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2764 USE_TOOLKIT_SCROLL_BARS=yes
2766 elif test "${HAVE_GTK}" = "yes"; then
2767 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2768 USE_TOOLKIT_SCROLL_BARS=yes
2769 elif test "${HAVE_NS}" = "yes"; then
2770 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2771 USE_TOOLKIT_SCROLL_BARS=yes
2772 elif test "${HAVE_W32}" = "yes"; then
2773 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2774 USE_TOOLKIT_SCROLL_BARS=yes
2778 dnl See if XIM is available.
2779 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2780 #include <X11/Xlib.h>
2781 #include <X11/Xresource.h>]],
2782 [[XIMProc callback;]])],
2784 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2787 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2789 if test "${with_xim}" != "no"; then
2790 AC_DEFINE(USE_XIM, 1,
2791 [Define to 1 if we should use XIM, if it is available.])
2795 if test "${HAVE_XIM}" != "no"; then
2797 if test "$GCC" = yes; then
2798 CFLAGS="$CFLAGS --pedantic-errors"
2800 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2801 #include <X11/Xlib.h>
2802 #include <X11/Xresource.h>]],
2808 XPointer *client_data;
2810 /* If we're not using GCC, it's probably not XFree86, and this is
2811 probably right, but we can't use something like --pedantic-errors. */
2812 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2813 char*, XIMProc, XPointer*);
2815 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2817 [emacs_cv_arg6_star=yes])
2818 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2819 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2820 either XPointer or XPointer*.])dnl
2821 if test "$emacs_cv_arg6_star" = yes; then
2822 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2824 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2829 ### Start of font-backend (under any platform) section.
2830 # (nothing here yet -- this is a placeholder)
2831 ### End of font-backend (under any platform) section.
2833 ### Start of font-backend (under X11) section.
2834 if test "${HAVE_X11}" = "yes"; then
2835 PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
2837 ## Use -lXft if available, unless `--with-xft=no'.
2839 if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2842 if test "x${with_xft}" != "xno"; then
2844 PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
2845 ## Because xftfont.c uses XRenderQueryExtension, we also
2846 ## need to link to -lXrender.
2848 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2849 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2850 OLD_CPPFLAGS="$CPPFLAGS"
2851 OLD_CFLAGS="$CFLAGS"
2853 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2854 CFLAGS="$CFLAGS $XFT_CFLAGS"
2855 XFT_LIBS="-lXrender $XFT_LIBS"
2856 LIBS="$XFT_LIBS $LIBS"
2857 AC_CHECK_HEADER(X11/Xft/Xft.h,
2858 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
2859 [[#include <X11/X.h>]])
2861 if test "${HAVE_XFT}" = "yes"; then
2862 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2864 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2866 CPPFLAGS="$OLD_CPPFLAGS"
2867 CFLAGS="$OLD_CFLAGS"
2869 fi # "${HAVE_XFT}" = "yes"
2870 fi # "$HAVE_XFT" != no
2871 fi # "x${with_xft}" != "xno"
2873 ## We used to allow building with FreeType and without Xft.
2874 ## However, the ftx font backend driver is not in good shape.
2875 if test "$HAVE_XFT" != "yes"; then
2876 dnl For the "Does Emacs use" message at the end.
2880 dnl Strict linkers fail with
2881 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2882 dnl if -lfreetype is not specified.
2883 dnl The following is needed to set FREETYPE_LIBS.
2884 PKG_CHECK_MODULES(FREETYPE, freetype2, HAVE_FREETYPE=yes,
2887 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2891 if test "${HAVE_FREETYPE}" = "yes"; then
2892 AC_DEFINE(HAVE_FREETYPE, 1,
2893 [Define to 1 if using the freetype and fontconfig libraries.])
2894 if test "${with_libotf}" != "no"; then
2895 PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
2897 if test "$HAVE_LIBOTF" = "yes"; then
2898 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2899 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2900 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2901 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2902 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2903 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2904 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2908 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2909 dnl Does the new font backend require it, or can it work without it?
2913 if test "${HAVE_LIBOTF}" = yes; then
2914 if test "${with_m17n_flt}" != "no"; then
2915 PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
2916 if test "$HAVE_M17N_FLT" = "yes"; then
2917 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2928 ### End of font-backend (under X11) section.
2930 AC_SUBST(FREETYPE_CFLAGS)
2931 AC_SUBST(FREETYPE_LIBS)
2932 AC_SUBST(FONTCONFIG_CFLAGS)
2933 AC_SUBST(FONTCONFIG_LIBS)
2934 AC_SUBST(LIBOTF_CFLAGS)
2935 AC_SUBST(LIBOTF_LIBS)
2936 AC_SUBST(M17N_FLT_CFLAGS)
2937 AC_SUBST(M17N_FLT_LIBS)
2939 ### Use -lXpm if available, unless `--with-xpm=no'.
2940 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
2943 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
2944 if test "${with_xpm}" != "no"; then
2945 SAVE_CPPFLAGS="$CPPFLAGS"
2946 SAVE_LDFLAGS="$LDFLAGS"
2947 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
2948 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
2949 AC_CHECK_HEADER(X11/xpm.h,
2950 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
2951 if test "${HAVE_XPM}" = "yes"; then
2952 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2953 AC_EGREP_CPP(no_return_alloc_pixels,
2954 [#include "X11/xpm.h"
2955 #ifndef XpmReturnAllocPixels
2956 no_return_alloc_pixels
2958 ], HAVE_XPM=no, HAVE_XPM=yes)
2960 if test "${HAVE_XPM}" = "yes"; then
2961 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
2965 CPPFLAGS="$SAVE_CPPFLAGS"
2966 LDFLAGS="$SAVE_LDFLAGS"
2971 if test "${HAVE_XPM}" = "yes"; then
2972 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2977 if test "${HAVE_X11}" = "yes"; then
2978 if test "${with_xpm}" != "no"; then
2979 AC_CHECK_HEADER(X11/xpm.h,
2980 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2981 if test "${HAVE_XPM}" = "yes"; then
2982 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2983 AC_EGREP_CPP(no_return_alloc_pixels,
2984 [#include "X11/xpm.h"
2985 #ifndef XpmReturnAllocPixels
2986 no_return_alloc_pixels
2988 ], HAVE_XPM=no, HAVE_XPM=yes)
2990 if test "${HAVE_XPM}" = "yes"; then
2998 if test "${HAVE_XPM}" = "yes"; then
2999 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3004 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
3005 ### slightly different requirements wrt image libraries (it doesn't
3006 ### use -lXpm because it loads the xpm shared library dynamically at
3008 if test "${opsys}" = "mingw32"; then
3009 if test "${with_xpm}" != "no"; then
3010 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
3014 if test "${HAVE_XPM}" = "yes"; then
3015 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3021 ### Use -ljpeg if available, unless `--with-jpeg=no'.
3022 ### mingw32 doesn't use -ljpeg, since it loads the library dynamically.
3025 if test "${opsys}" = "mingw32"; then
3026 if test "${with_jpeg}" != "no"; then
3027 dnl Checking for jpeglib.h can lose because of a redefinition of
3029 AC_CHECK_HEADER(jerror.h, HAVE_JPEG=yes, HAVE_JPEG=no)
3031 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
3032 if test "${HAVE_JPEG}" = "yes"; then
3033 AC_DEFINE(HAVE_JPEG)
3034 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
3035 [#include <jpeglib.h>
3036 version=JPEG_LIB_VERSION
3038 [AC_DEFINE(HAVE_JPEG)],
3039 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
3042 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3043 if test "${with_jpeg}" != "no"; then
3044 dnl Checking for jpeglib.h can lose because of a redefinition of
3046 AC_CHECK_HEADER(jerror.h,
3047 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
3050 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
3051 if test "${HAVE_JPEG}" = "yes"; then
3052 AC_DEFINE(HAVE_JPEG)
3053 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
3054 [#include <jpeglib.h>
3055 version=JPEG_LIB_VERSION
3057 [AC_DEFINE(HAVE_JPEG)],
3058 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
3061 if test "${HAVE_JPEG}" = "yes"; then
3067 ### Use -lpng if available, unless `--with-png=no'.
3068 ### mingw32 doesn't use -lpng, since it loads the library dynamically.
3072 if test "${opsys}" = "mingw32"; then
3073 if test "${with_png}" != "no"; then
3074 AC_CHECK_HEADER([png.h], [HAVE_PNG=yes])
3076 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3077 if test "${with_png}" != "no"; then
3079 dnl NetBSD 6 provides libpng16, not libpng.
3080 if png_cflags=`(libpng-config --cflags) 2>&AS_MESSAGE_LOG_FD` &&
3081 png_libs=`(libpng-config --libs) 2>&AS_MESSAGE_LOG_FD`
3084 PNG_CFLAGS=`AS_ECHO(["$png_cflags"]) | sed -e "$edit_cflags"`
3087 # libpng-config does not work; configure it by hand.
3088 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
3089 # in /usr/include/libpng.
3090 AC_CHECK_HEADERS([png.h libpng/png.h],
3091 [AC_CHECK_LIB([png], [png_get_channels],
3093 LIBPNG='-lpng -lz -lm'
3094 if test "$ac_cv_header_libpng_png_h" = yes; then
3095 PNG_CFLAGS=-I/usr/include/libpng
3103 if test $HAVE_PNG = yes; then
3104 AC_DEFINE([HAVE_PNG], [1], [Define to 1 if you have the png library.])
3107 CFLAGS="$CFLAGS $PNG_CFLAGS"
3108 AC_CHECK_DECL([png_longjmp],
3110 [AC_DEFINE([PNG_DEPSTRUCT], [],
3111 [Define to empty to suppress deprecation warnings when building
3112 with --enable-gcc-warnings and with libpng versions before 1.5,
3113 which lack png_longjmp.])],
3119 AC_SUBST(PNG_CFLAGS)
3123 if test "${with_zlib}" != "no"; then
3125 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
3127 case $ac_cv_search_inflateEnd in
3128 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3131 if test "${HAVE_ZLIB}" = "yes"; then
3132 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3133 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3134 if test "${opsys}" = "mingw32"; then
3141 ### Use -ltiff if available, unless `--with-tiff=no'.
3142 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3145 if test "${opsys}" = "mingw32"; then
3146 if test "${with_tiff}" != "no"; then
3147 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3149 if test "${HAVE_TIFF}" = "yes"; then
3150 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3152 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3153 if test "${with_tiff}" != "no"; then
3154 AC_CHECK_HEADER(tiffio.h,
3156 # At least one tiff package requires the jpeg library.
3157 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3158 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3161 if test "${HAVE_TIFF}" = "yes"; then
3162 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3163 dnl FIXME -lz -lm, as per libpng?
3169 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
3170 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3173 if test "${opsys}" = "mingw32"; then
3174 if test "${with_gif}" != "no"; then
3175 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3177 if test "${HAVE_GIF}" = "yes"; then
3178 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3180 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3181 || test "${HAVE_W32}" = "yes"; then
3182 AC_CHECK_HEADER(gif_lib.h,
3183 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3184 # Earlier versions can crash Emacs, but version 5.0 removes EGifPutExtensionLast.
3185 [AC_CHECK_LIB(gif, GifMakeMapObject, HAVE_GIF=yes,
3186 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])])
3188 if test "$HAVE_GIF" = yes; then
3190 elif test "$HAVE_GIF" = maybe; then
3191 # If gif_lib.h but no libgif, try libungif.
3192 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3193 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3196 if test "${HAVE_GIF}" = "yes"; then
3197 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3202 dnl Check for required libraries.
3203 if test "${HAVE_X11}" = "yes"; then
3206 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3207 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3208 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3209 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3210 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3211 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3212 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3213 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3214 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3215 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3217 if test "X${MISSING}" != X; then
3218 AC_MSG_ERROR([The following required libraries were not found:
3220 Maybe some development libraries/packages are missing?
3221 If you don't want to link with them give
3223 as options to configure])
3227 ### Use -lgpm if available, unless `--with-gpm=no'.
3230 if test "${with_gpm}" != "no"; then
3231 AC_CHECK_HEADER(gpm.h,
3232 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3234 if test "${HAVE_GPM}" = "yes"; then
3235 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3241 dnl Check for malloc/malloc.h on darwin
3242 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3245 ### Use NeXTstep API to implement GUI.
3246 if test "${HAVE_NS}" = "yes"; then
3247 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
3248 if test "${NS_IMPL_COCOA}" = "yes"; then
3249 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
3251 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3252 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3253 # See also .m.o rule in Makefile.in */
3254 # FIXME: are all these flags really needed? Document here why. */
3255 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3256 ## Extra CFLAGS applied to src/*.m files.
3257 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3262 ### Use session management (-lSM -lICE) if available
3265 if test "${HAVE_X11}" = "yes"; then
3266 AC_CHECK_HEADER(X11/SM/SMlib.h,
3267 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3269 if test "${HAVE_X_SM}" = "yes"; then
3270 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3274 *) LIBS="$LIBXSM $LIBS" ;;
3280 ### Use XRandr (-lXrandr) if available
3282 if test "${HAVE_X11}" = "yes"; then
3283 XRANDR_REQUIRED=1.2.2
3284 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3285 PKG_CHECK_MODULES(XRANDR, $XRANDR_MODULES, HAVE_XRANDR=yes, HAVE_XRANDR=no)
3286 if test $HAVE_XRANDR = no; then
3287 # Test old way in case pkg-config doesn't have it (older machines).
3288 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3289 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)])
3290 if test $HAVE_XRANDR = yes; then
3291 XRANDR_LIBS=-lXrandr
3292 AC_SUBST(XRANDR_LIBS)
3295 if test $HAVE_XRANDR = yes; then
3296 SAVE_CFLAGS="$CFLAGS"
3298 CFLAGS="$XRANDR_CFLAGS $CFLAGS"
3299 LIBS="$XRANDR_LIBS $LIBS"
3300 AC_CHECK_FUNCS(XRRGetOutputPrimary XRRGetScreenResourcesCurrent)
3301 CFLAGS="$SAVE_CFLAGS"
3304 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3308 ### Use Xinerama (-lXinerama) if available
3310 if test "${HAVE_X11}" = "yes"; then
3311 XINERAMA_REQUIRED=1.0.2
3312 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3313 PKG_CHECK_MODULES(XINERAMA, $XINERAMA_MODULES, HAVE_XINERAMA=yes,
3315 if test $HAVE_XINERAMA = no; then
3316 # Test old way in case pkg-config doesn't have it (older machines).
3317 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3318 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3319 if test $HAVE_XINERAMA = yes; then
3320 XINERAMA_LIBS=-lXinerama
3321 AC_SUBST(XINERAMA_LIBS)
3324 if test $HAVE_XINERAMA = yes; then
3325 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3330 ### Use libxml (-lxml2) if available
3331 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3333 if test "${with_xml2}" != "no"; then
3334 ### I'm not sure what the version number should be, so I just guessed.
3335 PKG_CHECK_MODULES(LIBXML2, libxml-2.0 > 2.6.17, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
3336 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3337 if test "${HAVE_LIBXML2}" != "yes" -a "$opsys" = "darwin"; then
3338 SAVE_CPPFLAGS="$CPPFLAGS"
3339 CPPFLAGS="$CPPFLAGS -I$xcsdkdir/usr/include/libxml2"
3340 AC_CHECK_HEADER(libxml/HTMLparser.h,
3341 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3342 [#include <libxml/HTMLparser.h>])])
3343 CPPFLAGS="$SAVE_CPPFLAGS"
3344 if test "${HAVE_LIBXML2}" = "yes"; then
3345 LIBXML2_CFLAGS="-I'$xcsdkdir/usr/include/libxml2'"
3346 LIBXML2_LIBS="-lxml2"
3349 if test "${HAVE_LIBXML2}" = "yes"; then
3350 if test "${opsys}" != "mingw32"; then
3351 LIBS="$LIBXML2_LIBS $LIBS"
3352 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
3356 if test "${HAVE_LIBXML2}" = "yes"; then
3357 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3364 AC_SUBST(LIBXML2_LIBS)
3365 AC_SUBST(LIBXML2_CFLAGS)
3367 # If netdb.h doesn't declare h_errno, we must declare it by hand.
3368 # On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
3369 if test "${opsys}" = "mingw32"; then
3370 emacs_cv_netdb_declares_h_errno=yes
3372 AC_CACHE_CHECK(whether netdb declares h_errno,
3373 emacs_cv_netdb_declares_h_errno,
3374 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
3375 [[return h_errno;]])],
3376 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
3377 if test $emacs_cv_netdb_declares_h_errno = yes; then
3378 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
3381 # sqrt and other floating-point functions such as fmod and frexp
3382 # are found in -lm on most systems, but mingw32 doesn't use -lm.
3383 if test "${opsys}" != "mingw32"; then
3384 AC_CHECK_LIB(m, sqrt)
3387 # Check for mail-locking functions in a "mail" library. Probably this should
3388 # have the same check as for liblockfile below.
3389 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
3390 if test $have_mail = yes; then
3392 LIBS="$LIBS_MAIL $LIBS"
3393 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
3397 dnl Debian, at least:
3398 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
3399 if test $have_lockfile = yes; then
3400 LIBS_MAIL=-llockfile
3401 LIBS="$LIBS_MAIL $LIBS"
3402 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
3404 # If we have the shared liblockfile, assume we must use it for mail
3405 # locking (e.g. Debian). If we couldn't link against liblockfile
3406 # (no liblockfile.a installed), ensure that we don't need to.
3407 dnl This works for files generally, not just executables.
3408 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3409 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
3410 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
3411 if test $ac_cv_prog_liblockfile = yes; then
3412 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3413 This probably means that movemail could lose mail.
3414 There may be a `development' package to install containing liblockfile.])
3417 AC_CHECK_HEADERS_ONCE(maillock.h)
3420 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3421 ## interlock access to the mail spool. The alternative is a lock file named
3422 ## /usr/spool/mail/$USER.lock.
3425 aix4-2) mail_lock="lockf" ;;
3427 gnu|freebsd|dragonfly|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
3429 ## On GNU/Linux systems, both methods are used by various mail programs.
3430 ## I assume most people are using newer mailers that have heard of flock.
3431 ## Change this if you need to.
3432 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
3433 ## configure gets the right answers, and that means *NOT* using flock.
3434 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3435 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
3436 ## Debian maintainer hasn't provided a clean fix for Emacs.
3437 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
3438 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3439 ## correct logic. -- fx
3440 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3441 ## liblockfile is a Free Software replacement for libmail, used on
3442 ## Debian systems and elsewhere. -rfr.
3445 if test $have_mail = yes || test $have_lockfile = yes; then
3446 test $ac_cv_header_maillock_h = yes && mail_lock=no
3451 mail_lock="none-needed" ;;
3455 case "$mail_lock" in
3456 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3458 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3462 *) BLESSMAIL_TARGET="need-blessmail" ;;
3464 AC_SUBST(BLESSMAIL_TARGET)
3467 AC_CHECK_FUNCS(accept4 gethostname \
3468 getrusage get_current_dir_name \
3470 select getpagesize setlocale \
3471 getrlimit setrlimit shutdown getaddrinfo \
3472 strsignal setitimer \
3473 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
3474 gai_strerror getline getdelim sync \
3475 getpwent endpwent getgrent endgrent \
3477 cfmakeraw cfsetspeed copysign __executable_start log2)
3479 dnl No need to check for aligned_alloc and posix_memalign if using
3480 dnl gmalloc.o, as it supplies them. Don't use these functions on
3481 dnl Darwin as they are incompatible with unexmacosx.c.
3482 if test -z "$GMALLOC_OBJ" && test "$opsys" != darwin; then
3483 AC_CHECK_FUNCS([aligned_alloc posix_memalign], [break])
3486 ## Eric Backus <ericb@lsid.hp.com> says, HP-UX 9.x on HP 700 machines
3487 ## has a broken `rint' in some library versions including math library
3488 ## version number A.09.05.
3489 ## You can fix the math library by installing patch number PHSS_4630.
3490 ## But we can fix it more reliably for Emacs by just not using rint.
3491 ## We also skip HAVE_RANDOM - see comments in src/conf_post.h.
3494 *) AC_CHECK_FUNCS(random rint) ;;
3497 dnl Cannot use AC_CHECK_FUNCS
3498 AC_CACHE_CHECK([for __builtin_unwind_init],
3499 emacs_cv_func___builtin_unwind_init,
3500 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3501 emacs_cv_func___builtin_unwind_init=yes,
3502 emacs_cv_func___builtin_unwind_init=no)])
3503 if test $emacs_cv_func___builtin_unwind_init = yes; then
3504 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3505 [Define to 1 if you have the `__builtin_unwind_init' function.])
3508 AC_CHECK_HEADERS_ONCE(sys/un.h)
3513 AC_CHECK_FUNCS(grantpt)
3515 # PTY-related GNU extensions.
3516 AC_CHECK_FUNCS(getpt posix_openpt)
3518 # Check this now, so that we will NOT find the above functions in ncurses.
3519 # That is because we have not set up to link ncurses in lib-src.
3520 # It's better to believe a function is not available
3521 # than to expect to find it in ncurses.
3522 # Also we need tputs and friends to be able to build at all.
3523 AC_MSG_CHECKING([for library containing tputs])
3524 # Run a test program that contains a call to tputs, a call that is
3525 # never executed. This tests whether a pre-'main' dynamic linker
3526 # works with the library. It's too much trouble to actually call
3527 # tputs in the test program, due to portability hassles. When
3528 # cross-compiling, assume the test program will run if it links.
3529 AC_DEFUN([tputs_link_source], [
3531 [[extern void tputs (const char *, int, int (*)(int));
3532 int main (int argc, char **argv)
3535 tputs (argv[0], 0, 0);
3539 if test "${opsys}" = "mingw32"; then
3542 # Maybe curses should be tried earlier?
3543 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3544 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3546 if test -z "$tputs_library"; then
3550 LIBS_TERMCAP=-l$tputs_library
3552 LIBS="$LIBS_TERMCAP $LIBS"
3554 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3555 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3557 if test "X$msg" != Xno; then
3562 AC_MSG_RESULT([$msg])
3563 if test "X$msg" = Xno; then
3564 AC_MSG_ERROR([The required function `tputs' was not found in any library.
3565 The following libraries were tried (in order):
3566 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3567 Please try installing whichever of these libraries is most appropriate
3568 for your system, together with its header files.
3569 For example, a libncurses-dev(el) or similar package.])
3572 ## Use termcap instead of terminfo?
3573 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3575 ## FIXME? In the cases below where we unconditionally set
3576 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3577 ## if that was found above to have tputs.
3578 ## Should we use the gnu* logic everywhere?
3580 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3581 ## The ncurses library has been moved out of the System framework in
3582 ## Mac OS X 10.2. So if configure detects it, set the command-line
3583 ## option to use it.
3584 darwin) LIBS_TERMCAP="-lncurses" ;;
3586 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3589 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3590 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3591 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3592 [[#if __FreeBSD_version < 400000
3595 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3597 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3599 if test $emacs_cv_freebsd_terminfo = yes; then
3600 LIBS_TERMCAP="-lncurses"
3603 LIBS_TERMCAP="-ltermcap"
3613 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3615 LIBS_TERMCAP="-ltermcap"
3619 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
3621 ## hpux: Make sure we get select from libc rather than from libcurses
3622 ## because libcurses on HPUX 10.10 has a broken version of select.
3623 ## We used to use -lc -lcurses, but this may be cleaner.
3624 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3625 # set that way, now it uses the default). Isn't this a contradiction?
3626 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3630 TERMCAP_OBJ=tparam.o
3631 if test $TERMINFO = yes; then
3632 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3633 TERMCAP_OBJ=terminfo.o
3635 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
3636 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
3638 AC_SUBST(LIBS_TERMCAP)
3639 AC_SUBST(TERMCAP_OBJ)
3642 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3643 # On Darwin, res_init appears not to be useful: see bug#562 and
3644 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3647 if test $opsys != darwin; then
3649 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3650 #include <arpa/nameser.h>
3651 #include <resolv.h>]],
3652 [[return res_init();]])],
3653 have_res_init=yes, have_res_init=no)
3654 if test "$have_res_init" = no; then
3656 LIBS="$LIBS -lresolv"
3657 AC_MSG_CHECKING(for res_init with -lresolv)
3658 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3659 #include <arpa/nameser.h>
3660 #include <resolv.h>]],
3661 [[return res_init();]])],
3662 have_res_init=yes, have_res_init=no)
3663 AC_MSG_RESULT($have_res_init)
3664 if test "$have_res_init" = yes ; then
3670 if test "$have_res_init" = yes; then
3671 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3675 # Do we need the Hesiod library to provide the support routines?
3676 dnl FIXME? Should we be skipping this on Darwin too?
3678 if test "$with_hesiod" != no ; then
3679 # Don't set $LIBS here -- see comments above. FIXME which comments?
3680 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3681 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3682 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3683 if test "$resolv" = yes ; then
3688 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3689 hesiod=yes, :, $RESOLVLIB)])
3691 if test x"$hesiod" = xyes; then
3697 # Do we need libresolv (due to res_init or Hesiod)?
3698 if test "$resolv" = yes && test $opsys != darwin; then
3705 # These tell us which Kerberos-related libraries to use.
3712 if test "${with_kerberos}" != no; then
3713 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3714 if test $have_com_err = yes; then
3715 COM_ERRLIB=-lcom_err
3716 LIBS="$COM_ERRLIB $LIBS"
3718 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3719 if test $have_crypto = yes; then
3721 LIBS="$CRYPTOLIB $LIBS"
3723 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3724 if test $have_k5crypto = yes; then
3725 CRYPTOLIB=-lk5crypto
3726 LIBS="$CRYPTOLIB $LIBS"
3728 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3729 if test $have_krb5=yes; then
3731 LIBS="$KRB5LIB $LIBS"
3733 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3734 if test "${with_kerberos5}" = no; then
3735 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3736 if test $have_des425 = yes; then
3738 LIBS="$DESLIB $LIBS"
3740 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3741 if test $have_des = yes; then
3743 LIBS="$DESLIB $LIBS"
3746 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3747 if test $have_krb4 = yes; then
3749 LIBS="$KRB4LIB $LIBS"
3751 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3752 if test $have_krb = yes; then
3754 LIBS="$KRB4LIB $LIBS"
3759 if test "${with_kerberos5}" != no; then
3760 AC_CHECK_HEADERS(krb5.h,
3761 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3762 [#include <krb5.h>])])
3764 AC_CHECK_HEADERS(krb.h,,
3765 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3766 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3768 AC_CHECK_HEADERS(com_err.h)
3771 AC_SUBST(COM_ERRLIB)
3777 AC_CHECK_HEADERS(valgrind/valgrind.h)
3779 AC_CHECK_FUNCS_ONCE(tzset)
3780 AC_MSG_CHECKING(whether localtime caches TZ)
3781 AC_CACHE_VAL(emacs_cv_localtime_cache,
3782 [if test x$ac_cv_func_tzset = xyes; then
3783 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3784 char TZ_GMT0[] = "TZ=GMT0";
3785 char TZ_PST8[] = "TZ=PST8";
3788 time_t now = time ((time_t *) 0);
3789 int hour_GMT0, hour_unset;
3790 if (putenv (TZ_GMT0) != 0)
3792 hour_GMT0 = localtime (&now)->tm_hour;
3794 hour_unset = localtime (&now)->tm_hour;
3795 if (putenv (TZ_PST8) != 0)
3797 if (localtime (&now)->tm_hour == hour_GMT0)
3800 if (localtime (&now)->tm_hour != hour_unset)
3803 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3804 [# If we have tzset, assume the worst when cross-compiling.
3805 emacs_cv_localtime_cache=yes])
3807 # If we lack tzset, report that localtime does not cache TZ,
3808 # since we can't invalidate the cache if we don't have tzset.
3809 emacs_cv_localtime_cache=no
3811 AC_MSG_RESULT($emacs_cv_localtime_cache)
3812 if test $emacs_cv_localtime_cache = yes; then
3813 AC_DEFINE(LOCALTIME_CACHE, 1,
3814 [Define to 1 if localtime caches TZ.])
3818 AC_CHECK_FUNC(socket, , ok_so_far=no)
3819 if test $ok_so_far = yes; then
3820 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3822 if test $ok_so_far = yes; then
3823 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3825 if test $ok_so_far = yes; then
3826 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3827 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3828 [Define to 1 if you have inet sockets.])
3831 dnl Check for a Solaris 2.4 vfork bug that Autoconf misses (through 2.69).
3832 dnl This can be removed once we assume Autoconf 2.70.
3834 *-solaris2.4 | *-solaris2.4.*)
3835 dnl Disable the Autoconf-generated vfork test.
3836 : ${ac_cv_func_vfork_works=no};;
3841 AC_CHECK_FUNCS(snprintf)
3843 dnl Check this late. It depends on what other libraries (lrsvg, Gtk+ etc)
3848 CFLAGS="$CFLAGS $GFILENOTIFY_CFLAGS"
3849 LIBS="$LIBS $GFILENOTIFY_LIBS"
3850 AC_MSG_CHECKING([whether GLib is linked in])
3851 AC_LINK_IFELSE([AC_LANG_PROGRAM(
3854 [[g_print ("Hello world");]])],
3857 AC_MSG_RESULT([$links_glib])
3858 if test "${links_glib}" = "yes"; then
3859 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
3860 if test "$HAVE_NS" = no;then
3868 dnl Adapted from Haible's version.
3869 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3870 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3871 [[char* cs = nl_langinfo(CODESET);]])],
3872 emacs_cv_langinfo_codeset=yes,
3873 emacs_cv_langinfo_codeset=no)
3875 if test $emacs_cv_langinfo_codeset = yes; then
3876 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3877 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3882 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3883 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3884 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3885 if test "$emacs_cv_c_restrict_arr" = yes; then
3886 AC_DEFINE(__restrict_arr, __restrict,
3887 [Define to compiler's equivalent of C99 restrict keyword in array
3888 declarations. Define as empty for no equivalent.])
3891 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3892 dnl how the tty code is related to POSIX and/or other versions of termios.
3893 dnl The following looks like a useful start.
3895 dnl AC_SYS_POSIX_TERMIOS
3896 dnl if test $ac_cv_sys_posix_termios = yes; then
3897 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3898 dnl and macros for terminal control.])
3899 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3902 dnl Turned on June 1996 supposing nobody will mind it.
3903 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
3904 if test "${opsys}" != "mingw32"; then
3905 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3906 in the full name stands for the login id.])
3909 dnl Every platform that uses configure supports this.
3910 dnl There is a create-lockfiles option you can
3911 dnl customize if you do not want the lock files to be written.
3912 dnl So it is not clear that this #define still needs to exist.
3913 AC_DEFINE(CLASH_DETECTION, 1, [Define if you want lock files to be written,
3914 so that Emacs can tell instantly when you try to modify a file that
3915 someone else has modified in his/her Emacs.])
3917 dnl Everybody supports this, except MS.
3918 dnl Seems like the kind of thing we should be testing for, though.
3919 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3920 if test "${opsys}" != "mingw32"; then
3921 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3924 dnl Everybody supports this, except MS-DOS.
3925 dnl Seems like the kind of thing we should be testing for, though.
3926 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3927 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3928 4.2-compatible sockets.])
3930 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3932 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
3933 a null file, or a data sink.])
3934 if test "${opsys}" = "mingw32"; then
3935 AC_DEFINE(NULL_DEVICE, ["NUL:"])
3937 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
3940 if test "${opsys}" = "mingw32"; then
3945 AC_DEFINE_UNQUOTED(SEPCHAR, ['$SEPCHAR'], [Character that separates PATH elements.])
3946 dnl This is for MinGW, and is used in test/automated/Makefile.in.
3947 dnl The MSYS Bash has heuristics for replacing ':' with ';' when it
3948 dnl decides that a command-line argument to be passed to a MinGW program
3949 dnl is a PATH-style list of directories. But that heuristics plays it
3950 dnl safe, and only does the replacement when it is _absolutely_ sure it
3951 dnl sees a colon-separated list of file names; e.g. ":." is left alone,
3952 dnl which breaks in-tree builds. So we do this manually instead.
3953 dnl Note that we cannot rely on PATH_SEPARATOR, as that one will always
3954 dnl be computed as ':' in MSYS Bash.
3957 dnl Everybody supports this, except MS-DOS.
3958 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3960 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3963 AC_DEFINE(DIRECTORY_SEP, ['/'],
3964 [Character that separates directories in a file name.])
3966 if test "${opsys}" = "mingw32"; then
3967 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
3968 [Returns true if character is a device separator.])
3970 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
3971 [Returns true if character is a directory separator.])
3973 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
3974 [Returns true if character is any form of separator.])
3976 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
3977 [Returns true if character is a device separator.])
3979 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
3980 [Returns true if character is a directory separator.])
3982 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
3983 [Returns true if character is any form of separator.])
3986 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
3990 dnl Unfortunately without libXmu we cannot support EditRes.
3991 if test x$ac_cv_lib_Xmu_XmuConvertStandardSelection != xyes; then
3992 AC_DEFINE(NO_EDITRES, 1)
3997 dnl Assar Westerlund <assar@sics.se> says this is necessary for
3998 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
3999 AC_DEFINE(NO_EDITRES, 1)
4005 irix6-5 | sol2* | unixware )
4006 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
4007 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
4008 dnl need the constant to dimension an array. So wire in the appropriate
4010 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
4014 emacs_broken_SIGIO=no
4017 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
4018 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
4019 hpux* | irix6-5 | openbsd | sol2* | unixware )
4020 emacs_broken_SIGIO=yes
4024 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
4025 dnl the way this system works, libc functions that return malloced
4026 dnl memory use the libc malloc implementation. Calling xfree or
4027 dnl xrealloc on the results of such functions results in a crash.
4029 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
4030 dnl but that does not currently work on this system.
4032 dnl It is possible to completely override the malloc implementation on
4033 dnl AIX, but that involves putting the malloc functions in a shared
4034 dnl library and setting the MALLOCTYPE environment variable to point to
4035 dnl that shared library.
4037 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
4038 dnl to avoid a crash just use the Emacs implementation for that function.
4040 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
4041 dnl of this file, so that we do not check for get_current_dir_name
4042 dnl on AIX. But that might be fragile if something else ends
4043 dnl up testing for get_current_dir_name as a dependency.
4044 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
4045 get_current_dir_name should not be used.])
4049 dnl Circumvent a bug in FreeBSD. In the following sequence of
4050 dnl writes/reads on a PTY, read(2) returns bogus data:
4052 dnl write(2) 1022 bytes
4053 dnl write(2) 954 bytes, get EAGAIN
4054 dnl read(2) 1024 bytes in process_read_output
4055 dnl read(2) 11 bytes in process_read_output
4057 dnl That is, read(2) returns more bytes than have ever been written
4058 dnl successfully. The 1033 bytes read are the 1022 bytes written
4059 dnl successfully after processing (for example with CRs added if the
4060 dnl terminal is set up that way which it is here). The same bytes will
4061 dnl be seen again in a later read(2), without the CRs.
4062 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
4063 work around an issue when reading from a PTY.])
4069 dnl FIXME Can't we test if this exists (eg /proc/$$)?
4070 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
4075 darwin | dragonfly | freebsd | netbsd | openbsd )
4076 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
4077 close a pty to make it a controlling terminal (it is already a
4078 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
4082 dnl FIXME Surely we can test for this rather than hard-code it.
4084 netbsd | openbsd) sound_device="/dev/audio" ;;
4085 *) sound_device="/dev/dsp" ;;
4089 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
4090 [Name of the default sound device.])
4093 dnl Emacs can read input using SIGIO and buffering characters itself,
4094 dnl or using CBREAK mode and making C-g cause SIGINT.
4095 dnl The choice is controlled by the variable interrupt_input.
4097 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
4099 dnl Emacs uses the presence of the USABLE_SIGIO macro
4100 dnl to indicate whether or not signal-driven I/O is possible. It uses
4101 dnl INTERRUPT_INPUT to decide whether to use it by default.
4103 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
4104 dnl CBREAK mode has two disadvantages
4105 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
4106 dnl I hear that in system V this problem does not exist.
4107 dnl 2) Control-G causes output to be discarded.
4108 dnl I do not know whether this can be fixed in system V.
4110 dnl Another method of doing input is planned but not implemented.
4111 dnl It would have Emacs fork off a separate process
4112 dnl to read the input and send it to the true Emacs process
4115 darwin | gnu-linux | gnu-kfreebsd )
4116 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
4121 dnl If the system's imake configuration file defines `NeedWidePrototypes'
4122 dnl as `NO', we must define NARROWPROTO manually. Such a define is
4123 dnl generated in the Makefile generated by `xmkmf'. If we don't define
4124 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
4125 dnl taking float or double parameters.
4127 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
4128 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
4129 file defines `NeedWidePrototypes' as `NO'.])
4134 dnl Used in process.c, this must be a loop, even if it only runs once.
4135 dnl (Except on SGI; see below. Take that, clarity and consistency!)
4136 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
4137 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
4138 dnl trying suffixes 0-16.
4139 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
4140 first PTY, if PTYs are supported.])
4141 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
4142 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
4143 end of a PTY, if non-standard.])
4144 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
4145 end of a PTY, if non-standard.])
4149 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4150 dnl You allocate a pty by opening /dev/ptc to get the master side.
4151 dnl To get the name of the slave side, you just ttyname() the master side.
4152 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4153 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4157 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4158 dnl multi-line AC_DEFINEs are hard. :(
4159 AC_DEFINE(PTY_OPEN, [ do { int dummy; sigset_t blocked, procmask; sigemptyset (&blocked); sigaddset (&blocked, SIGCHLD); pthread_sigmask (SIG_BLOCK, &blocked, &procmask); if (-1 == openpty (&fd, &dummy, pty_name, 0, 0)) fd = -1; pthread_sigmask (SIG_SETMASK, &procmask, 0); if (fd >= 0) emacs_close (dummy); } while (false)])
4160 AC_DEFINE(PTY_NAME_SPRINTF, [])
4161 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4164 dnl FIXME? Maybe use same as freebsd - see bug#12040.
4166 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4167 dnl Not used, because PTY_ITERATION is defined.
4168 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4169 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
4170 dnl But we don't have to block SIGCHLD because it is blocked in the
4171 dnl implementation of grantpt.
4172 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (false)])
4173 AC_DEFINE(PTY_NAME_SPRINTF, [])
4174 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4178 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4181 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd )
4183 if test "x$ac_cv_func_grantpt" = xyes; then
4184 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4185 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4186 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4187 dnl to prevent sigchld_handler from intercepting the child's death.
4188 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptyname = 0; sigset_t blocked; sigemptyset (&blocked); sigaddset (&blocked, SIGCHLD); pthread_sigmask (SIG_BLOCK, &blocked, 0); if (grantpt (fd) != -1 && unlockpt (fd) != -1) ptyname = ptsname(fd); pthread_sigmask (SIG_UNBLOCK, &blocked, 0); if (!ptyname) { emacs_close (fd); return -1; } snprintf (pty_name, PTY_NAME_SIZE, "%s", ptyname); }])
4189 dnl if HAVE_POSIX_OPENPT
4190 if test "x$ac_cv_func_posix_openpt" = xyes; then
4191 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (false)])
4192 AC_DEFINE(PTY_NAME_SPRINTF, [])
4194 elif test "x$ac_cv_func_getpt" = xyes; then
4195 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4196 AC_DEFINE(PTY_NAME_SPRINTF, [])
4198 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4201 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4206 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4207 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4208 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4212 dnl It looks like this cannot be right, because it is not a loop.
4213 dnl However, process.c actually does this:
4219 dnl which presumably makes it OK, since irix == sgi (?).
4220 dnl FIXME it seems like this special treatment is unnecessary?
4221 dnl Why can't irix use a single-trip loop like eg cygwin?
4222 AC_DEFINE(PTY_ITERATION, [])
4223 dnl Not used, because PTY_ITERATION is defined.
4224 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
4225 AC_DEFINE(PTY_OPEN, [ { struct sigaction ocstat, cstat; struct stat stb; char * name; sigemptyset(&cstat.sa_mask); cstat.sa_handler = SIG_DFL; cstat.sa_flags = 0; sigaction(SIGCHLD, &cstat, &ocstat); name = _getpty (&fd, O_RDWR | O_NDELAY, 0600, 0); sigaction(SIGCHLD, &ocstat, (struct sigaction *)0); if (name == 0) return -1; if (fd < 0) return -1; if (fstat (fd, &stb) < 0) return -1; strcpy (pty_name, name); }])
4226 dnl No need to get the pty name at all.
4227 AC_DEFINE(PTY_NAME_SPRINTF, [])
4228 dnl No need to use sprintf to get the tty name--we get that from _getpty.
4229 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4233 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
4234 dnl from intercepting that death. If any child but grantpt's should die
4235 dnl within, it should be caught after sigrelse(2).
4236 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptsname (int), *ptyname; int grantpt_result; sigset_t blocked; sigemptyset (&blocked); sigaddset (&blocked, SIGCHLD); pthread_sigmask (SIG_BLOCK, &blocked, 0); grantpt_result = grantpt (fd); pthread_sigmask (SIG_UNBLOCK, &blocked, 0); if (grantpt_result == -1 || unlockpt (fd) == -1 || !(ptyname = ptsname (fd))) { emacs_close (fd); return -1; } snprintf (pty_name, PTY_NAME_SIZE, "%s", ptyname); }])
4240 dnl Comments are as per sol2*.
4241 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptsname (int), *ptyname; int grantpt_result; sigset_t blocked; sigemptyset (&blocked); sigaddset (&blocked, SIGCHLD); pthread_sigmask (SIG_BLOCK, &blocked, 0); grantpt_result = grantpt (fd); pthread_sigmask (SIG_UNBLOCK, &blocked, 0); if (grantpt_result == -1) fatal("could not grant slave pty"); if (unlockpt(fd) == -1) fatal("could not unlock slave pty"); if (!(ptyname = ptsname(fd))) fatal ("could not enable slave pty"); snprintf (pty_name, PTY_NAME_SIZE, "%s", ptyname); }])
4248 dnl This change means that we don't loop through allocate_pty too
4249 dnl many times in the (rare) event of a failure.
4250 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4251 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4252 dnl Push various streams modules onto a PTY channel. Used in process.c.
4253 AC_DEFINE(SETUP_SLAVE_PTY, [if (ioctl (xforkin, I_PUSH, "ptem") == -1) fatal ("ioctl I_PUSH ptem"); if (ioctl (xforkin, I_PUSH, "ldterm") == -1) fatal ("ioctl I_PUSH ldterm"); if (ioctl (xforkin, I_PUSH, "ttcompat") == -1) fatal ("ioctl I_PUSH ttcompat");], [How to set up a slave PTY, if needed.])
4258 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4259 "typing" a signal character on the pty.])
4262 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4263 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
4264 aix4-2 | cygwin | gnu | irix6-5 | dragonfly | freebsd | netbsd | openbsd | darwin )
4265 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4268 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4269 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4270 gnu-linux | gnu-kfreebsd )
4272 AC_MSG_CHECKING([for signals via characters])
4273 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4274 #include <linux/version.h>
4275 #if LINUX_VERSION_CODE < 0x20400
4276 # error "Linux version too old"
4278 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4280 AC_MSG_RESULT([$emacs_signals_via_chars])
4281 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4286 dnl Used in lisp.h, emacs.c, vm-limit.c
4287 dnl NEWS.18 describes this as "a number which contains
4288 dnl the high bits to be inclusive or'ed with pointers that are unpacked."
4289 AH_TEMPLATE(DATA_SEG_BITS, [Extra bits to be or'd in with any pointers
4290 stored in a Lisp_Object.])
4291 dnl if Emacs uses fewer than 32 bits for the value field of a LISP_OBJECT.
4295 dnl This works with 32-bit executables; Emacs doesn't support 64-bit.
4296 AC_DEFINE(DATA_SEG_BITS, [0x20000000])
4299 dnl The data segment on this machine always starts at address 0x40000000.
4300 AC_DEFINE(DATA_SEG_BITS, [0x40000000])
4303 AC_DEFINE(DATA_SEG_BITS, [0x10000000])
4308 AH_TEMPLATE(TAB3, [Undocumented.])
4311 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4313 gnu | dragonfly | freebsd | netbsd | openbsd )
4314 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4315 AC_DEFINE(TAB3, OXTABS)
4318 gnu-linux | gnu-kfreebsd )
4319 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4323 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4324 [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)],
4325 [Mark a secondary stack, like the register stack on the ia64.]), [])
4329 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4330 run_time_remap; for HPUX.])
4335 dnl This won't be used automatically yet. We also need to know, at least,
4336 dnl that the stack is continuous.
4337 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4338 registers relevant for conservative garbage collection in the jmp_buf.])
4342 dnl Not all the architectures are tested, but there are Debian packages
4343 dnl for SCM and/or Guile on them, so the technique must work. See also
4344 dnl comments in alloc.c concerning setjmp and gcc.
4345 dnl Fixme: it's probably safe to just use the GCC conditional below.
4346 gnu-linux | gnu-kfreebsd )
4347 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4348 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4349 || defined __alpha__ || defined __mips__ || defined __s390__ \
4350 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4351 || defined __ia64__ || defined __sh__
4354 # error "setjmp not known to work on this arch"
4356 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4361 if test x$GCC = xyes; then
4362 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4363 AC_DEFINE(GC_SETJMP_WORKS, 1)
4366 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
4367 dragonfly | freebsd | netbsd | openbsd | irix6-5 | sol2* )
4368 AC_DEFINE(GC_SETJMP_WORKS, 1)
4373 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4374 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4377 [[#include <setjmp.h>
4379 # define _longjmp longjmp
4384 _longjmp (j, 1);]])],
4385 [emacs_cv_func__setjmp=yes],
4386 [emacs_cv_func__setjmp=no])])
4387 if test $emacs_cv_func__setjmp = yes; then
4388 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4390 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4393 [[#include <setjmp.h>
4396 if (! sigsetjmp (j, 1))
4397 siglongjmp (j, 1);]])],
4398 [emacs_cv_func_sigsetjmp=yes],
4399 [emacs_cv_func_sigsetjmp=no])])
4400 if test $emacs_cv_func_sigsetjmp = yes; then
4401 AC_DEFINE([HAVE_SIGSETJMP], 1,
4402 [Define to 1 if sigsetjmp and siglongjmp work.
4403 The value of this symbol is irrelevant if HAVE__SETJMP is defined.])
4409 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4410 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4411 dnl and this is all we need.
4412 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4419 dnl Used in xfaces.c.
4420 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4421 some systems, where it requires time.h.])
4426 dnl Define symbols to identify the version of Unix this is.
4427 dnl Define all the symbols that apply correctly.
4428 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4429 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4430 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4431 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4436 dnl This symbol should be defined on AIX Version 3 ???????
4437 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4439 # error "_AIX not defined"
4441 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4445 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4449 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
4450 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4451 dnl distinguish OS X from pure Darwin.
4452 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4455 gnu-linux | gnu-kfreebsd )
4457 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4462 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4467 AC_DEFINE(USG5_4, [])
4468 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4472 AC_DEFINE(DOS_NT, [])
4473 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4474 if test "x$ac_enable_checking" != "x" ; then
4475 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4481 AC_DEFINE(USG5_4, [])
4482 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4487 AC_DEFINE(USG5_4, [])
4491 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4494 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4495 emacs_cv_usable_FIONREAD=no
4499 emacs_cv_usable_FIONREAD=yes
4504 [AC_LANG_PROGRAM([[#include <sys/types.h>
4505 #include <sys/ioctl.h>
4507 # include <sys/filio.h>
4510 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4511 [emacs_cv_usable_FIONREAD=yes],
4512 [emacs_cv_usable_FIONREAD=no])
4515 if test $emacs_cv_usable_FIONREAD = yes; then
4516 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4518 if test $emacs_broken_SIGIO = no; then
4519 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4521 [AC_LANG_PROGRAM([[#include <fcntl.h>
4524 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4525 [emacs_cv_usable_SIGIO=yes],
4526 [emacs_cv_usable_SIGIO=no])],
4527 [emacs_cv_usable_SIGIO=yes],
4528 [emacs_cv_usable_SIGIO=no])
4529 if test $emacs_cv_usable_SIGIO = yes; then
4530 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4537 dnl Emacs supplies its own malloc, but glib calls posix_memalign,
4538 dnl and on Cygwin prior to version 1.7.24 that becomes the
4539 dnl Cygwin-supplied posix_memalign. As malloc is not the Cygwin
4540 dnl malloc, the Cygwin posix_memalign always returns ENOSYS. A
4541 dnl workaround is to set G_SLICE=always-malloc. This is no longer
4542 dnl needed starting with cygwin-1.7.24, and it is no longer
4543 dnl effective starting with glib-2.36. */
4545 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
4546 G_SLICE environment variable to "always-malloc" at startup.])
4550 dnl It works to open the pty's tty in the parent (Emacs), then
4551 dnl close and reopen it in the child.
4552 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4553 works to open a pty's tty in the parent process, then close and
4554 reopen it in the child.])
4558 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4559 use VSUSP instead of VSWTCH.])
4563 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4568 # Set up the CFLAGS for real compilation, so we can substitute it.
4569 CFLAGS="$REAL_CFLAGS"
4570 CPPFLAGS="$REAL_CPPFLAGS"
4572 ## Hack to detect a buggy GCC version.
4573 if test "x$GCC" = xyes \
4574 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4575 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4576 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4577 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4580 version=$PACKAGE_VERSION
4582 copyright="Copyright (C) 2014 Free Software Foundation, Inc."
4583 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4584 [Short copyright string for this version of Emacs.])
4587 ### Specify what sort of things we'll be editing into Makefile and config.h.
4588 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4590 AC_SUBST(configuration)
4595 AC_SUBST(exec_prefix)
4598 AC_SUBST(sharedstatedir)
4599 AC_SUBST(libexecdir)
4603 AC_SUBST(standardlisppath)
4604 AC_SUBST(locallisppath)
4606 AC_SUBST(x_default_search_path)
4608 AC_SUBST(archlibdir)
4613 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4614 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4615 ## end of LIBX_BASE, but nothing ever set it.
4616 AC_SUBST(LD_SWITCH_X_SITE)
4617 AC_SUBST(C_SWITCH_X_SITE)
4618 AC_SUBST(GNUSTEP_CFLAGS)
4620 ## Used in lwlib/Makefile.in.
4621 AC_SUBST(X_TOOLKIT_TYPE)
4623 AC_SUBST(ns_appbindir)
4624 AC_SUBST(ns_appresdir)
4626 AC_SUBST(GNU_OBJC_CFLAGS)
4627 AC_SUBST(OTHER_FILES)
4629 if test -n "${term_header}"; then
4630 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4631 [Define to the header for the built-in window system.])
4634 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4635 [Define to the canonical Emacs configuration name.])
4636 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4637 [Define to the options passed to configure.])
4638 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4639 define this to include extra configuration information.])
4643 AC_DEFINE(config_opsysfile, <ms-w32.h>, [])
4650 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4651 AC_DEFINE(HAVE_X_WINDOWS, 1,
4652 [Define to 1 if you want to use the X window system.])
4654 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4656 if test "$HAVE_XFT" = "yes"; then
4657 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4658 elif test "$HAVE_FREETYPE" = "yes"; then
4659 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4669 if test "${USE_X_TOOLKIT}" != "none" ; then
4671 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4672 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4673 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4674 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4675 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4679 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4680 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4684 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4685 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4686 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4690 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4691 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4694 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4697 AC_SUBST(WIDGET_OBJ)
4700 case "$USE_X_TOOLKIT" in
4701 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4702 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4703 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4705 AC_SUBST(TOOLKIT_LIBW)
4707 if test "${opsys}" != "mingw32"; then
4708 if test "$USE_X_TOOLKIT" = "none"; then
4709 LIBXT_OTHER="\$(LIBXSM)"
4711 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4714 AC_SUBST(LIBXT_OTHER)
4716 if test "${HAVE_X11}" = "yes" ; then
4717 AC_DEFINE(HAVE_X11, 1,
4718 [Define to 1 if you want to use version 11 of X windows.])
4719 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4723 AC_SUBST(LIBX_OTHER)
4725 if test "$HAVE_GTK" = yes || test "$HAVE_X11" != yes; then
4727 elif test "$USE_X_TOOLKIT" = none; then
4728 LIBXMENU='$(oldXMenudir)/libXMenu11.a'
4730 LIBXMENU='$(lwlibdir)/liblw.a'
4734 if test "${GNU_MALLOC}" = "yes" ; then
4735 AC_DEFINE(GNU_MALLOC, 1,
4736 [Define to 1 if you want to use the GNU memory allocator.])
4740 if test "${REL_ALLOC}" = "yes" ; then
4741 AC_DEFINE(REL_ALLOC, 1,
4742 [Define REL_ALLOC if you want to use the relocating allocator for
4745 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4747 AC_SUBST(RALLOC_OBJ)
4749 if test "$opsys" = "cygwin"; then
4750 CYGWIN_OBJ="sheap.o cygw32.o"
4751 ## Cygwin differs because of its unexec().
4753 POST_ALLOC_OBJ=lastfile.o
4754 elif test "$opsys" = "mingw32"; then
4757 POST_ALLOC_OBJ=lastfile.o
4760 PRE_ALLOC_OBJ=lastfile.o
4763 AC_SUBST(CYGWIN_OBJ)
4764 AC_SUBST(PRE_ALLOC_OBJ)
4765 AC_SUBST(POST_ALLOC_OBJ)
4767 dnl Call this 'FORTIFY_SOUR' so that it sorts before the 'FORTIFY_SOURCE'
4768 dnl verbatim defined above. The tricky name is apropos, as this hack
4769 dnl makes Fortify go sour!
4770 AH_VERBATIM([FORTIFY_SOUR],
4771 [/* Without the following workaround, Emacs runs slowly on OS X 10.8.
4772 The workaround disables some useful run-time checking, so it
4773 should be conditional to the platforms with the performance bug.
4774 Perhaps Apple will fix this some day; also see m4/extern-inline.m4. */
4775 #if defined __APPLE__ && defined __GNUC__
4776 # ifndef _DONT_USE_CTYPE_INLINE_
4777 # define _DONT_USE_CTYPE_INLINE_
4779 # ifndef _FORTIFY_SOURCE
4780 # define _FORTIFY_SOURCE 0
4785 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4786 # it temporarily reverts them to their pre-pkg-config values,
4787 # because gnulib needs to work with both src (which uses the
4788 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4789 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4790 # and it therefore needs to run in an environment where LIBS does not
4791 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4792 # for some package unrelated to lib-src.
4795 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4796 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4797 gl_ASSERT_NO_GNULIB_POSIXCHECK
4798 gl_ASSERT_NO_GNULIB_TESTS
4803 if test "${opsys}" = "mingw32"; then
4804 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I \${abs_top_srcdir}/nt/inc"
4805 # Remove unneeded switches from the value of CC that goes to Makefiles
4806 CC=`echo $CC | sed -e "s,$GCC_TEST_OPTIONS,,"`
4810 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4813 ## The -headerpad option tells ld (see man page) to leave room at the
4814 ## end of the header for adding load commands. Needed for dumping.
4815 ## 0x690 is the total size of 30 segment load commands (at 56
4816 ## each); under Cocoa 31 commands are required.
4817 if test "$HAVE_NS" = "yes"; then
4818 libs_nsgui="-framework AppKit"
4819 if test "$NS_IMPL_COCOA" = "yes"; then
4820 libs_nsgui="$libs_nsgui -framework IOKit"
4827 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4829 ## This is here because src/Makefile.in did some extra fiddling around
4830 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
4831 ## LD_SWITCH_SYSTEM_TEMACS instead,
4832 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4833 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4836 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4837 ## find X at run-time.
4838 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4839 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4840 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4841 ## had different values in configure (in ac_link) and src/Makefile.in.
4842 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4843 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4846 ## MinGW64 does not prepend an underscore to symbols, so we must
4847 ## pass a different -entry switch to linker. FIXME: It is better
4848 ## to make the entry points the same by changing unexw32.c.
4849 case "$canonical" in
4850 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4851 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4855 openbsd) LD_SWITCH_SYSTEM_TEMACS='-nopie' ;;
4857 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4860 if test x$ac_enable_profiling != x ; then
4862 *freebsd | gnu-linux) ;;
4863 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
4867 LD_SWITCH_SYSTEM_TEMACS="$LDFLAGS_NOCOMBRELOC $LD_SWITCH_SYSTEM_TEMACS"
4869 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4871 ## MinGW-specific post-link processing of temacs.
4872 TEMACS_POST_LINK=":"
4875 if test "${opsys}" = "mingw32"; then
4876 TEMACS_POST_LINK="\$(MINGW_TEMACS_POST_LINK)"
4877 ADDSECTION="../nt/addsection\$(EXEEXT)"
4878 ## Preload heap size of temacs.exe in MB.
4879 case "$canonical" in
4880 x86_64-*-*) EMACS_HEAPSIZE=42 ;;
4881 *) EMACS_HEAPSIZE=27 ;;
4885 AC_SUBST(ADDSECTION)
4886 AC_SUBST(TEMACS_POST_LINK)
4887 AC_SUBST(EMACS_HEAPSIZE)
4889 ## Common for all window systems
4890 if test "$window_system" != "none"; then
4891 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4892 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4895 AC_SUBST(WINDOW_SYSTEM_OBJ)
4897 AH_TOP([/* GNU Emacs site configuration template file.
4899 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2014
4900 Free Software Foundation, Inc.
4902 This file is part of GNU Emacs.
4904 GNU Emacs is free software: you can redistribute it and/or modify
4905 it under the terms of the GNU General Public License as published by
4906 the Free Software Foundation, either version 3 of the License, or
4907 (at your option) any later version.
4909 GNU Emacs is distributed in the hope that it will be useful,
4910 but WITHOUT ANY WARRANTY; without even the implied warranty of
4911 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4912 GNU General Public License for more details.
4914 You should have received a copy of the GNU General Public License
4915 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4918 /* No code in Emacs #includes config.h twice, but some bits of code
4919 intended to work with other packages as well (like gmalloc.c)
4920 think they can include it as many times as they like. */
4921 #ifndef EMACS_CONFIG_H
4922 #define EMACS_CONFIG_H
4925 AH_BOTTOM([#include <conf_post.h>
4927 #endif /* EMACS_CONFIG_H */
4936 #### Report on what we decided to do.
4937 #### Report GTK as a toolkit, even if it doesn't use Xt.
4938 #### It makes printing result more understandable as using GTK sets
4939 #### toolkit_scroll_bars to yes by default.
4940 if test "${HAVE_GTK}" = "yes"; then
4941 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
4944 if test $USE_ACL -ne 0; then
4945 acl_summary="yes $LIB_ACL"
4951 Configured for \`${canonical}'.
4953 Where should the build process find the source code? ${srcdir}
4954 What compiler should emacs be built with? ${CC} ${CFLAGS}
4955 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4956 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4957 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4958 What window system should Emacs use? ${window_system}
4959 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4961 if test -n "${x_includes}"; then
4962 echo " Where do we find X Windows header files? ${x_includes}"
4964 echo " Where do we find X Windows header files? Standard dirs"
4966 if test -n "${x_libraries}"; then
4967 echo " Where do we find X Windows libraries? ${x_libraries}"
4969 echo " Where do we find X Windows libraries? Standard dirs"
4972 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4973 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4974 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4975 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4976 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4977 echo " Does Emacs use a png library? ${HAVE_PNG} $LIBPNG"
4978 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4979 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4981 echo " Does Emacs support sound? ${HAVE_SOUND}"
4983 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4984 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4985 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4986 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4987 echo " Does Emacs use a file notification library? ${NOTIFY_SUMMARY}"
4988 echo " Does Emacs use access control lists? ${acl_summary}"
4989 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4990 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4991 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4993 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4994 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4995 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
4996 echo " Does Emacs use -lxft? ${HAVE_XFT}"
4997 echo " Does Emacs directly use zlib? ${HAVE_ZLIB}"
4999 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
5002 if test -n "${EMACSDATA}"; then
5003 echo " Environment variable EMACSDATA set to: $EMACSDATA"
5005 if test -n "${EMACSDOC}"; then
5006 echo " Environment variable EMACSDOC set to: $EMACSDOC"
5011 if test "$HAVE_NS" = "yes"; then
5013 echo "You must run \"${MAKE-make} install\" in order to test the built application.
5014 The installed application will go to nextstep/Emacs.app and can be
5015 run or moved from there."
5016 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
5017 echo "The application will be fully self-contained."
5019 echo "The lisp resources for the application will be installed under ${prefix}.
5020 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
5021 to run if these resources are not installed."
5026 if test "${opsys}" = "cygwin"; then
5028 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
5034 # Remove any trailing slashes in these variables.
5035 [test "${prefix}" != NONE &&
5036 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
5037 test "${exec_prefix}" != NONE &&
5038 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
5040 if test "$HAVE_NS" = "yes"; then
5041 if test "$NS_IMPL_GNUSTEP" = yes; then
5042 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
5043 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
5044 ns_check_file=Resources/Info-gnustep.plist
5046 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
5047 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
5048 ns_check_file=Contents/Info.plist
5050 AC_SUBST(ns_check_file)
5053 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
5054 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
5055 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
5056 dnl (else you get "no `Makefile.am' found for any configure output").
5057 dnl This will work, but you get a config.status that is not quite right
5058 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
5059 dnl That doesn't have any obvious consequences for Emacs, but on the whole
5060 dnl it seems better to just live with the duplication.
5061 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile nt/Makefile"
5063 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
5064 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
5065 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
5066 leim/Makefile nextstep/Makefile nt/Makefile])
5068 dnl test/ is not present in release tarfiles.
5069 opt_makefile=test/automated/Makefile
5071 if test -f "$srcdir/$opt_makefile.in"; then
5072 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
5073 dnl Again, it's best not to use a variable. Though you can add
5074 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
5075 AC_CONFIG_FILES([test/automated/Makefile])
5079 dnl The admin/ directory used to be excluded from tarfiles.
5080 if test -d $srcdir/admin; then
5081 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES admin/unidata/Makefile admin/grammars/Makefile"
5082 AC_CONFIG_FILES([admin/unidata/Makefile])
5083 AC_CONFIG_FILES([admin/grammars/Makefile])
5087 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
5089 AC_SUBST(SUBDIR_MAKEFILES_IN)
5091 dnl You might wonder (I did) why epaths.h is generated by running make,
5092 dnl rather than just letting configure generate it from epaths.in.
5093 dnl One reason is that the various paths are not fully expanded (see above);
5094 dnl eg gamedir=${prefix}/var/games/emacs.
5095 dnl Secondly, the GNU Coding standards require that one should be able
5096 dnl to run `make prefix=/some/where/else' and override the values set
5097 dnl by configure. This also explains the `move-if-change' test and
5098 dnl the use of force in the `epaths-force' rule in Makefile.in.
5099 AC_CONFIG_COMMANDS([src/epaths.h], [
5100 if test "${opsys}" = "mingw32"; then
5101 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
5103 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
5105 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
5107 dnl NB we have to cheat and use the ac_... version because abs_top_srcdir
5108 dnl is not yet set, sigh. Or we could use ../$srcdir/src/.gdbinit,
5110 AC_CONFIG_COMMANDS([src/.gdbinit], [
5111 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
5112 echo "source $ac_abs_top_srcdir/src/.gdbinit" > src/.gdbinit