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, 24.3.91)
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 "$with_wide_int" = yes; then
240 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
243 dnl _ON results in a '--without' option in the --help output, so
244 dnl the help text should refer to "don't compile", etc.
245 with_xpm_set=${with_xpm+set}
246 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
247 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
248 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
249 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
250 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
251 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
252 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
253 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
255 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
256 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
257 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
259 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
260 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
261 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
262 OPTION_DEFAULT_OFF([ns],[use NeXTstep (Cocoa or GNUstep) windowing system])
263 OPTION_DEFAULT_OFF([w32], [use native MS Windows GUI in a Cygwin build])
265 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
266 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
267 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
268 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
269 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
270 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
271 OPTION_DEFAULT_ON([zlib],[don't compile with zlib decompression support])
273 AC_ARG_WITH([file-notification],[AS_HELP_STRING([--with-file-notification=LIB],
274 [use a file notification library (LIB one of: yes, gfile, inotify, w32, no)])],
275 [ case "${withval}" in
276 y | ye | yes ) val=yes ;;
278 g | gf | gfi | gfil | gfile ) val=gfile ;;
279 i | in | ino | inot | inoti | inotif | inotify ) val=inotify ;;
280 w | w3 | w32 ) val=w32 ;;
281 * ) AC_MSG_ERROR([`--with-file-notification=$withval' is invalid;
282 this option's value should be `yes', `no', `gfile', `inotify' or `w32'.
283 `yes' is a synonym for `w32' on MS-Windows, for `no' on Nextstep,
284 otherwise for the first of `gfile' or `inotify' that is usable.])
287 with_file_notification=$val
289 [with_file_notification=$with_features])
291 ## For the times when you want to build Emacs but don't have
292 ## a suitable makeinfo, and can live without the manuals.
293 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
294 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
296 ## Makefile.in needs the cache file name.
299 ## This is an option because I do not know if all info/man support
300 ## compressed files, nor how to test if they do so.
301 OPTION_DEFAULT_ON([compress-install],
302 [don't compress some files (.el, .info, etc.) when installing. Equivalent to:
303 make GZIP_PROG= install])
305 AC_ARG_WITH([pkg-config-prog],dnl
306 [AS_HELP_STRING([--with-pkg-config-prog=FILENAME],
307 [file name of pkg-config for finding GTK and librsvg])])
308 if test "X${with_pkg_config_prog}" != X; then
309 if test "${with_pkg_config_prog}" != yes; then
310 PKG_CONFIG="${with_pkg_config_prog}"
314 AC_ARG_WITH(gameuser,dnl
315 [AS_HELP_STRING([--with-gameuser=USER],[user for shared game score files])])
316 test "X${with_gameuser}" != X && test "${with_gameuser}" != yes \
317 && gameuser="${with_gameuser}"
318 test "X$gameuser" = X && gameuser=games
320 AC_ARG_WITH([gnustep-conf],dnl
321 [AS_HELP_STRING([--with-gnustep-conf=FILENAME],
322 [name of GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
323 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
324 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
325 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
326 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
328 AC_ARG_ENABLE(ns-self-contained,
329 [AS_HELP_STRING([--disable-ns-self-contained],
330 [disable self contained build under NeXTstep])],
331 EN_NS_SELF_CONTAINED=$enableval,
332 EN_NS_SELF_CONTAINED=yes)
334 AC_ARG_ENABLE(locallisppath,
335 [AS_HELP_STRING([--enable-locallisppath=PATH],
336 [directories Emacs should search for lisp files specific
338 if test "${enableval}" = "no"; then
340 elif test "${enableval}" != "yes"; then
341 locallisppath=${enableval}
344 AC_ARG_ENABLE(checking,
345 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
346 [enable expensive run-time checks. With LIST,
347 enable only specific categories of checks.
348 Categories are: all,yes,no.
349 Flags are: stringbytes, stringoverrun, stringfreelist,
350 xmallocoverrun, conslist, glyphs])],
351 [ac_checking_flags="${enableval}"],[])
352 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
353 for check in $ac_checking_flags
356 # these set all the flags to specific states
357 yes) ac_enable_checking=1 ;;
358 no) ac_enable_checking= ;
359 ac_gc_check_stringbytes= ;
360 ac_gc_check_string_overrun= ;
361 ac_gc_check_string_free_list= ;
362 ac_xmalloc_overrun= ;
363 ac_gc_check_cons_list= ;
365 all) ac_enable_checking=1 ;
366 ac_gc_check_stringbytes=1 ;
367 ac_gc_check_string_overrun=1 ;
368 ac_gc_check_string_free_list=1 ;
369 ac_xmalloc_overrun=1 ;
370 ac_gc_check_cons_list=1 ;
372 # these enable particular checks
373 stringbytes) ac_gc_check_stringbytes=1 ;;
374 stringoverrun) ac_gc_check_string_overrun=1 ;;
375 stringfreelist) ac_gc_check_string_free_list=1 ;;
376 xmallocoverrun) ac_xmalloc_overrun=1 ;;
377 conslist) ac_gc_check_cons_list=1 ;;
378 glyphs) ac_glyphs_debug=1 ;;
379 *) AC_MSG_ERROR(unknown check category $check) ;;
384 if test x$ac_enable_checking != x ; then
385 AC_DEFINE(ENABLE_CHECKING, 1,
386 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
388 if test x$ac_gc_check_stringbytes != x ; then
389 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
390 [Define this temporarily to hunt a bug. If defined, the size of
391 strings is redundantly recorded in sdata structures so that it can
392 be compared to the sizes recorded in Lisp strings.])
394 if test x$ac_gc_check_string_overrun != x ; then
395 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
396 [Define this to check for short string overrun.])
398 if test x$ac_gc_check_string_free_list != x ; then
399 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
400 [Define this to check the string free list.])
402 if test x$ac_xmalloc_overrun != x ; then
403 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
404 [Define this to check for malloc buffer overrun.])
406 if test x$ac_gc_check_cons_list != x ; then
407 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
408 [Define this to check for errors in cons list.])
410 if test x$ac_glyphs_debug != x ; then
411 AC_DEFINE(GLYPH_DEBUG, 1,
412 [Define this to enable glyphs debugging code.])
415 AC_ARG_ENABLE(check-lisp-object-type,
416 [AS_HELP_STRING([--enable-check-lisp-object-type],
417 [enable compile time checks for the Lisp_Object data type.
418 This is useful for development for catching certain types of bugs.])],
419 if test "${enableval}" != "no"; then
420 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
421 [Define this to enable compile time checks for the Lisp_Object data type.])
425 dnl The name of this option is unfortunate. It predates, and has no
426 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
427 dnl Actually, it stops it working.
428 dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
429 AC_ARG_ENABLE(profiling,
430 [AS_HELP_STRING([--enable-profiling],
431 [build emacs with low-level, gprof profiling support.
432 Mainly useful for debugging Emacs itself. May not work on
433 all platforms. Stops profiler.el working.])],
434 [ac_enable_profiling="${enableval}"],[])
435 if test x$ac_enable_profiling != x ; then
436 PROFILING_CFLAGS="-DPROFILING=1 -pg"
440 AC_SUBST(PROFILING_CFLAGS)
442 AC_ARG_ENABLE(autodepend,
443 [AS_HELP_STRING([--enable-autodepend],
444 [automatically generate dependencies to .h-files.
445 Requires GNU Make and Gcc. Enabled if GNU Make and Gcc is
447 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
449 AC_ARG_ENABLE(gtk-deprecation-warnings,
450 [AS_HELP_STRING([--enable-gtk-deprecation-warnings],
451 [Show Gtk+/Gdk deprecation warnings for Gtk+ >= 3.0])],
452 [ac_enable_gtk_deprecation_warnings="${enableval}"],[])
454 ### Canonicalize the configuration name.
458 configuration=${host_alias-${build_alias-$host}}
460 dnl This used to use changequote, but, apart from `changequote is evil'
461 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
462 dnl the great gob of text. Thus it's not processed for possible expansion.
463 dnl Just make sure the brackets remain balanced.
465 dnl Since Emacs can't find matching pairs of quotes, boundaries are
466 dnl indicated by comments.
470 ### If you add support for a new configuration, add code to this
471 ### switch statement to recognize your configuration name and select
472 ### the appropriate opsys.
474 ### As far as handling version numbers on operating systems is
475 ### concerned, make sure things will fail in a fixable way. If
476 ### /etc/MACHINES doesn't say anything about version numbers, be
477 ### prepared to handle anything reasonably. If version numbers
478 ### matter, be sure /etc/MACHINES says something about it.
481 case "${canonical}" in
483 ## GNU/Linux and similar ports
498 ## FreeBSD kernel + glibc based userland
509 *-*-openbsd* | *-*-mirbsd* )
513 ## Apple Darwin / Mac OS X
515 case "${canonical}" in
522 ## Use fink packages if available.
523 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
524 ## if test -d /sw/include && test -d /sw/lib; then
525 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
526 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
535 ## HP 9000 series 700 and 800, running HP/UX
539 hppa*-hp-hpux1[1-9]* )
541 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
545 rs6000-ibm-aix4.[23]* )
548 powerpc-ibm-aix4.[23]* )
551 rs6000-ibm-aix[56]* )
554 powerpc-ibm-aix[5-9]* | powerpc-ibm-aix[1-9][0-9]* )
558 ## Silicon Graphics machines
562 # Without defining _LANGUAGE_C, things get masked out in the headers
563 # so that, for instance, grepping for `free' in stdlib.h fails and
564 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
565 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
570 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
571 | x86_64-*-solaris2* | x86_64-*-sunos5*)
572 case "${canonical}" in
574 amd64-*-*|x86_64-*-*) ;;
578 case "${canonical}" in
579 *-sunos5.[1-9][0-9]* | *-solaris2.[1-9][0-9]* )
581 emacs_check_sunpro_c=yes
583 *-sunos5.6* | *-solaris2.6* )
587 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
589 emacs_check_sunpro_c=yes
592 ## Watch out for a compiler that we know will not work.
593 case "${canonical}" in
594 *-solaris* | *-sunos5* )
595 if [ "x$CC" = x/usr/ucb/cc ]; then
596 ## /usr/ucb/cc doesn't work;
597 ## we should find some other compiler that does work.
605 ## Intel 386 machines where we don't care about the manufacturer.
607 case "${canonical}" in
608 *-darwin* ) opsys=darwin ;;
611 # MinGW overrides and adds some system headers in nt/inc.
612 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
614 *-sysv4.2uw* ) opsys=unixware ;;
615 *-sysv5uw* ) opsys=unixware ;;
616 *-sysv5OpenUNIX* ) opsys=unixware ;;
617 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
623 case "${canonical}" in
626 # MinGW overrides and adds some system headers in nt/inc.
627 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
629 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
638 ### If the code above didn't choose an operating system, just choose
639 ### an operating system based on the configuration name. You really
640 ### only want to use this when you have no idea what the right
641 ### operating system is; if you know what operating systems a machine
642 ### runs, it's cleaner to make it explicit in the case statement
644 if test x"${opsys}" = x; then
645 case "${canonical}" in
646 *-gnu* ) opsys=gnu ;;
656 if test $unported = yes; then
657 AC_MSG_ERROR([Emacs does not support `${canonical}' systems.
658 If you think it should, please send a report to bug-gnu-emacs@gnu.org.
659 Check `etc/MACHINES' for recognized configuration names.])
663 #### Choose a compiler.
665 dnl Sets GCC=yes if using gcc.
666 AC_PROG_CC([gcc cc cl clang "$XCRUN gcc" "$XCRUN clang"])
667 if test -n "$XCRUN"; then
668 AC_CHECK_PROGS(AR, [ar "$XCRUN ar"])
669 test -n "$AR" && export AR
674 if test x$GCC = xyes; then
675 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
677 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
680 dnl This is used in lib/Makefile.am to use nt/gnulib.mk, the
681 dnl alternative to lib/gnulib.mk, so as to avoid generating header files
682 dnl that clash with MinGW.
683 AM_CONDITIONAL([BUILDING_FOR_WINDOWSNT], [test "x$opsys" = "xmingw32"])
685 # Avoid gnulib's tests for -lcrypto, so that there's no static dependency on it.
686 AC_DEFUN([gl_CRYPTO_CHECK])
687 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
688 # as we don't use them.
689 AC_DEFUN([gl_FCNTL_O_FLAGS])
690 # Avoid gnulib's threadlib module, as we do threads our own way.
691 AC_DEFUN([gl_THREADLIB])
693 # Initialize gnulib right after choosing the compiler.
694 dnl Amongst other things, this sets AR and ARFLAGS.
697 if test "$ac_test_CFLAGS" != set; then
698 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
699 # if -g3 works and the user does not specify CFLAGS.
700 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
703 emacs_g3_CFLAGS='-g3';;
705 emacs_g3_CFLAGS='-g3 -O2';;
709 if test -n "$emacs_g3_CFLAGS"; then
710 emacs_save_CFLAGS=$CFLAGS
711 CFLAGS=$emacs_g3_CFLAGS
712 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
713 [emacs_cv_prog_cc_g3],
714 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
715 [emacs_cv_prog_cc_g3=yes],
716 [emacs_cv_prog_cc_g3=no])])
717 if test $emacs_cv_prog_cc_g3 != yes; then
718 CFLAGS=$emacs_save_CFLAGS
720 if test $opsys = mingw32; then
721 CFLAGS="$CFLAGS -gdwarf-2"
728 # No optimization flag was inferred for this non-GCC compiler.
729 # Try -O. This is needed for xlc on AIX; see Bug#14258.
730 emacs_save_CFLAGS=$CFLAGS
731 test -z "$CFLAGS" || CFLAGS="$CFLAGS "
733 AC_CACHE_CHECK([whether $CC accepts -O],
734 [emacs_cv_prog_cc_o],
735 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
736 [emacs_cv_prog_cc_o=yes],
737 [emacs_cv_prog_cc_o=no])])
738 if test $emacs_cv_prog_cc_o != yes; then
739 CFLAGS=$emacs_save_CFLAGS
744 AC_ARG_ENABLE([gcc-warnings],
745 [AS_HELP_STRING([--enable-gcc-warnings],
746 [turn on lots of GCC warnings/errors. This is intended for
747 developers, and may generate false alarms when used
748 with older or non-GNU development tools.])],
751 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
753 gl_gcc_warnings=$enableval],
757 AC_ARG_ENABLE(link-time-optimization,
758 [AS_HELP_STRING([--enable-link-time-optimization],
759 [build emacs with link-time optimization.
760 This is supported only for GCC since 4.5.0.])],
761 if test "${enableval}" != "no"; then
762 AC_MSG_CHECKING([whether link-time optimization is supported])
764 if test x$GCC = xyes; then
765 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
766 if test x$CPUS != x; then
772 CFLAGS="$CFLAGS $LTO"
773 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
774 [ac_lto_supported=yes], [ac_lto_supported=no])
777 AC_MSG_RESULT([$ac_lto_supported])
778 if test "$ac_lto_supported" = "yes"; then
779 CFLAGS="$CFLAGS $LTO"
783 # clang is unduly picky about some things.
784 AC_CACHE_CHECK([whether the compiler is clang], [emacs_cv_clang],
791 [emacs_cv_clang=yes],
792 [emacs_cv_clang=no])])
794 # When compiling with GCC, prefer -isystem to -I when including system
795 # include files, to avoid generating useless diagnostics for the files.
796 if test "$gl_gcc_warnings" != yes; then
798 if test "$emacs_cv_clang" = yes
800 # Turn off some warnings if supported.
801 gl_WARN_ADD([-Wno-switch])
802 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
803 gl_WARN_ADD([-Wno-pointer-sign])
808 # This, $nw, is the list of warnings we disable.
811 case $with_x_toolkit in
812 lucid | athena | motif)
813 # Old toolkits mishandle 'const'.
814 nw="$nw -Wwrite-strings"
817 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
820 AC_SUBST([WERROR_CFLAGS])
822 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
823 nw="$nw -Woverlength-strings" # Not a problem these days
824 nw="$nw -Wlogical-op" # any use of fwrite provokes this
825 nw="$nw -Wformat-nonliteral" # we do this a lot
826 nw="$nw -Wvla" # warnings in gettext.h
827 nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
828 nw="$nw -Wswitch-default" # Too many warnings for now
829 nw="$nw -Winline" # OK to ignore 'inline'
830 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
831 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
832 # signed overflow has undefined behavior
833 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
834 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
835 nw="$nw -Wbad-function-cast" # These casts are no worse than others.
837 # Emacs doesn't care about shadowing; see
838 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
841 # Emacs's use of alloca inhibits protecting the stack.
842 nw="$nw -Wstack-protector"
844 # The following line should be removable at some point.
845 nw="$nw -Wsuggest-attribute=pure"
847 # This part is merely for shortening the command line,
848 # since -Wno-FOO needs to be added below regardless.
849 nw="$nw -Wmissing-field-initializers"
851 nw="$nw -Wtype-limits"
852 nw="$nw -Wunused-parameter"
854 if test $emacs_cv_clang = yes; then
855 nw="$nw -Wcast-align"
858 gl_MANYWARN_ALL_GCC([ws])
859 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
863 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
864 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
865 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
866 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
867 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
868 gl_WARN_ADD([-Wno-format-nonliteral])
870 # In spite of excluding -Wlogical-op above, it is enabled, as of
871 # gcc 4.5.0 20090517.
872 gl_WARN_ADD([-Wno-logical-op])
874 # More things that clang is unduly picky about.
875 if test $emacs_cv_clang = yes; then
876 gl_WARN_ADD([-Wno-format-extra-args])
877 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
878 gl_WARN_ADD([-Wno-unused-command-line-argument])
879 gl_WARN_ADD([-Wno-unused-value])
882 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
883 AH_VERBATIM([FORTIFY_SOURCE],
884 [/* Enable compile-time and run-time bounds-checking, and some warnings,
885 without upsetting glibc 2.15+. */
886 #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
887 # define _FORTIFY_SOURCE 2
890 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
892 # We use a slightly smaller set of warning options for lib/.
893 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
895 nw="$nw -Wunused-macros"
897 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
898 AC_SUBST([GNULIB_WARN_CFLAGS])
909 dnl Some other nice autoconf tests.
910 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
913 dnl if test "x$RANLIB" = x; then
918 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
919 dnl can be made to directories. This is not relevant for our usage, and
920 dnl excludes some cases that work fine for us. Eg MS Windows or files
921 dnl hosted on AFS, both examples where simple links work, but links to
922 dnl directories fail. We use a cut-down version instead.
925 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
926 rm -f conf$$ conf$$.file
928 LN_S_FILEONLY='cp -p'
930 dnl On MinGW, ensure we will call the MSYS /bin/ln.exe, not some
931 dnl random program in the current directory.
932 if (echo >conf$$.file) 2>/dev/null; then
933 if ln -s conf$$.file conf$$ 2>/dev/null; then
934 if test "$opsys" = "mingw32"; then
935 LN_S_FILEONLY='/bin/ln -s'
937 LN_S_FILEONLY='ln -s'
939 elif ln conf$$.file conf$$ 2>/dev/null; then
940 if test "$opsys" = "mingw32"; then
941 LN_S_FILEONLY=/bin/ln
948 rm -f conf$$ conf$$.file
950 if test "$LN_S_FILEONLY" = "ln -s"; then
953 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
956 AC_SUBST(LN_S_FILEONLY)
959 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
960 dnl doesn't support links to directories, as in "ln file dir". But that
961 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
962 dnl executables at "make install" time.
963 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
964 dnl for more details.
965 if test "$opsys" = "mingw32"; then
969 dnl On some Debian versions, "install-info" prints irritating messages
970 dnl "This is not dpkg install-info anymore, but GNU install-info"
971 dnl if called via an absolute file name.
972 dnl Use the entirely-identical-but-quieter ginstall-info instead if present.
973 dnl Sadly some people may have an old ginstall-info installed on
974 dnl non-Debian systems, so we can't use this.
975 dnl AC_PATH_PROGS(INSTALL_INFO, [ginstall-info install-info], :,
976 dnl $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
978 AC_PATH_PROG(INSTALL_INFO, install-info, :,
979 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
980 dnl Don't use GZIP, which is used by gzip for additional parameters.
981 AC_PATH_PROG(GZIP_PROG, gzip)
983 test $with_compress_install != yes && test -n "$GZIP_PROG" && \
984 GZIP_PROG=" # $GZIP_PROG # (disabled by configure --without-compress-install)"
986 if test $opsys = gnu-linux; then
987 AC_PATH_PROG(PAXCTL, paxctl,,
988 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
989 if test "X$PAXCTL" != X; then
990 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
991 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
992 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
993 else AC_MSG_RESULT(no); PAXCTL=""; fi])
996 if test "${SETFATTR+set}" != set; then
997 AC_CACHE_CHECK([for setfattr],
998 [emacs_cv_prog_setfattr],
1000 if (setfattr -n user.pax.flags conftest.tmp) >/dev/null 2>&1; then
1001 emacs_cv_prog_setfattr=yes
1003 emacs_cv_prog_setfattr=no
1005 if test "$emacs_cv_prog_setfattr" = yes; then
1011 AC_SUBST([SETFATTR])
1015 ## Need makeinfo >= 4.7 (?) to build the manuals.
1016 AC_PATH_PROG(MAKEINFO, makeinfo, no)
1017 dnl By this stage, configure has already checked for egrep and set EGREP,
1018 dnl or exited with an error if no egrep was found.
1019 if test "$MAKEINFO" != "no"; then
1021 $MAKEINFO --version 2> /dev/null |
1022 $EGREP 'texinfo[[^0-9]]*([[1-4]][[0-9]]+|[[5-9]]|4\.[[7-9]]|4\.[[1-6]][[0-9]]+)'
1028 ## Makeinfo is unusual. For a released Emacs, the manuals are
1029 ## pre-built, and not deleted by the normal clean rules. makeinfo is
1030 ## therefore in the category of "special tools" not normally required, which
1031 ## configure does not have to check for (eg autoconf itself).
1032 ## In a repository checkout on the other hand, the manuals are not included.
1033 ## So makeinfo is a requirement to build from the repository, and configure
1034 ## should test for it as it does for any other build requirement.
1035 ## We use the presence of $srcdir/info/emacs to distinguish a release,
1036 ## with pre-built manuals, from a repository checkout.
1039 if test "$MAKEINFO" = "no"; then
1041 if test "x${with_makeinfo}" = "xno"; then
1043 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
1044 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
1045 source tree does not seem to have pre-built manuals in the `info' directory.
1046 Either install a suitable version of makeinfo, or re-run configure
1047 with the `--without-makeinfo' option to build without the manuals.] )
1050 AC_SUBST(HAVE_MAKEINFO)
1052 dnl Just so that there is only a single place we need to edit.
1054 INFO_OPTS=--no-split
1058 if test $opsys = mingw32; then
1059 DOCMISC_W32=efaq-w32
1063 AC_SUBST(DOCMISC_W32)
1065 dnl Add our options to ac_link now, after it is set up.
1067 if test x$GCC = xyes; then
1068 test "x$GCC_LINK_TEST_OPTIONS" != x && \
1069 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1071 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
1072 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1075 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
1076 dnl If we can link with the flag, it shouldn't do any harm anyhow.
1077 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
1078 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
1079 dnl if not built to support GNU ld.
1081 dnl For a long time, -znocombreloc was added to LDFLAGS rather than
1082 dnl LD_SWITCH_SYSTEM_TEMACS. That is:
1083 dnl * inappropriate, as LDFLAGS is a user option but this is essential.
1084 dnl Eg "make LDFLAGS=... all" could run into problems,
1085 dnl http://bugs.debian.org/684788
1086 dnl * unnecessary, since temacs is the only thing that actually needs it.
1087 dnl Indeed this is where it was originally, prior to:
1088 dnl http://lists.gnu.org/archive/html/emacs-pretest-bug/2004-03/msg00170.html
1089 late_LDFLAGS="$LDFLAGS"
1090 if test x$GCC = xyes; then
1091 LDFLAGS_NOCOMBRELOC="-Wl,-znocombreloc"
1093 LDFLAGS_NOCOMBRELOC="-znocombreloc"
1096 LDFLAGS="$LDFLAGS $LDFLAGS_NOCOMBRELOC"
1098 AC_MSG_CHECKING([for -znocombreloc])
1099 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1100 [AC_MSG_RESULT(yes)],
1101 LDFLAGS_NOCOMBRELOC=
1102 [AC_MSG_RESULT(no)])
1104 LDFLAGS="$late_LDFLAGS"
1106 AC_CACHE_CHECK([whether addresses are sanitized],
1107 [emacs_cv_sanitize_address],
1110 [[#ifndef __has_feature
1111 #define __has_feature(f) 0
1113 #if defined __SANITIZE_ADDRESS__ || __has_feature (address_sanitizer)
1115 error "Addresses are not sanitized.";
1118 [emacs_cv_sanitize_address=yes],
1119 [emacs_cv_sanitize_address=no])])
1121 dnl The function dump-emacs will not be defined and temacs will do
1122 dnl (load "loadup") automatically unless told otherwise.
1123 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
1125 your-opsys-here) CANNOT_DUMP=yes ;;
1128 if test "$CANNOT_DUMP" = "yes"; then
1129 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1130 elif test "$emacs_cv_sanitize_address" = yes; then
1131 AC_MSG_WARN([[Addresses are sanitized; suggest CANNOT_DUMP=yes]])
1134 AC_SUBST(CANNOT_DUMP)
1137 UNEXEC_OBJ=unexelf.o
1139 # MSDOS uses unexcoff.o
1141 UNEXEC_OBJ=unexaix.o
1147 UNEXEC_OBJ=unexmacosx.o
1150 UNEXEC_OBJ=unexhp9k800.o
1153 UNEXEC_OBJ=unexw32.o
1156 # Use the Solaris dldump() function, called from unexsol.c, to dump
1157 # emacs, instead of the generic ELF dump code found in unexelf.c.
1158 # The resulting binary has a complete symbol table, and is better
1159 # for debugging and other observability tools (debuggers, pstack, etc).
1161 # If you encounter a problem using dldump(), please consider sending
1162 # a message to the OpenSolaris tools-linking mailing list:
1163 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1165 # It is likely that dldump() works with older Solaris too, but this has
1166 # not been tested, so for now this change is for Solaris 10 or newer.
1167 UNEXEC_OBJ=unexsol.o
1174 ## Let `ld' find image libs and similar things in /usr/local/lib.
1175 ## The system compiler, GCC, has apparently been modified to not
1176 ## look there, contrary to what a stock GCC would do.
1177 ### It's not our place to do this. See bug#10313#17.
1178 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1183 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1184 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1188 ### It's not our place to do this. See bug#10313#17.
1189 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1194 ## Han Boetes <han@boetes.org> says this is necessary,
1195 ## otherwise Emacs dumps core on elf systems.
1196 LD_SWITCH_SYSTEM="-Z"
1199 AC_SUBST(LD_SWITCH_SYSTEM)
1201 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1203 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1204 ## which has not been defined yet. When this was handled with cpp,
1205 ## it was expanded to null when configure sourced the s/*.h file.
1206 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1207 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1208 ## (or somesuch), but because it is supposed to go at the _front_
1209 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1210 ## Compare with the gnu-linux case below, which added to the end
1211 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1212 ## LD_SWITCH_SYSTEM_TEMACS.
1215 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1222 AC_CHECK_DECL([__ELF__])
1223 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1224 ## With ELF, make sure that all common symbols get allocated to in the
1225 ## data section. Otherwise, the dump of temacs may miss variables in
1226 ## the shared library that have been initialized. For example, with
1227 ## GNU libc, __malloc_initialized would normally be resolved to the
1228 ## shared library's .bss section, which is fatal.
1229 if test "x$GCC" = "xyes"; then
1230 C_SWITCH_MACHINE="-fno-common"
1232 AC_MSG_ERROR([Non-GCC compilers are not supported.])
1235 dnl This was the unexalpha.c case. Removed in 24.1, 2010-07-24,
1236 dnl albeit under the mistaken assumption that said file
1237 dnl was no longer used.
1238 AC_MSG_ERROR([Non-ELF systems are not supported since Emacs 24.1.])
1242 AC_SUBST(C_SWITCH_MACHINE)
1244 AC_SUBST(UNEXEC_OBJ)
1247 ## Some programs in src produce warnings saying certain subprograms
1248 ## are too complex and need a MAXMEM value greater than 2000 for
1249 ## additional optimization. --nils@exp-math.uni-essen.de
1250 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1251 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1252 if test "$opsys" = "mingw32"; then
1253 case "$canonical" in
1254 x86_64-*-mingw32) C_SWITCH_SYSTEM="-mtune=generic" ;;
1255 *) C_SWITCH_SYSTEM="-mtune=pentium4" ;;
1258 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1259 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1260 AC_SUBST(C_SWITCH_SYSTEM)
1265 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1266 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1268 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1270 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1272 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1274 ## Motif needs -lgen.
1275 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1278 AC_SUBST(LIBS_SYSTEM)
1280 ### Make sure subsequent tests use flags consistent with the build flags.
1282 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1283 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1285 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1288 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C89 or better.
1289 AC_DEFUN([AC_TYPE_SIZE_T])
1290 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1291 AC_DEFUN([AC_TYPE_UID_T])
1295 dnl Current possibilities handled by sed (aix4-2 -> aix,
1296 dnl gnu-linux -> gnu/linux, etc.):
1297 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1298 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1299 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1306 ## Adding -lm confuses the dynamic linker, so omit it.
1309 freebsd | dragonfly )
1310 SYSTEM_TYPE=berkeley-unix
1312 gnu-linux | gnu-kfreebsd )
1314 hpux10-20 | hpux11 )
1318 SYSTEM_TYPE=windows-nt
1320 dnl NB this may be adjusted below.
1322 SYSTEM_TYPE=berkeley-unix
1326 SYSTEM_TYPE=usg-unix-v
1332 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1333 [The type of system you are compiling for; sets `system-type'.])
1336 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1337 pre_PKG_CONFIG_LIBS=$LIBS
1339 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
1341 dnl This function definition taken from Gnome 2.0
1342 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
1343 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
1344 dnl also defines GSTUFF_PKG_ERRORS on error
1345 AC_DEFUN([PKG_CHECK_MODULES], [
1348 if test "$PKG_CONFIG" = "no" ; then
1349 ifelse([$4], , [AC_MSG_ERROR([
1350 *** 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])
1352 PKG_CONFIG_MIN_VERSION=0.9.0
1353 if "$PKG_CONFIG" --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
1354 AC_MSG_CHECKING(for $2)
1356 if "$PKG_CONFIG" --exists "$2" 2>&AS_MESSAGE_LOG_FD &&
1357 $1_CFLAGS=`"$PKG_CONFIG" --cflags "$2" 2>&AS_MESSAGE_LOG_FD` &&
1358 $1_LIBS=`"$PKG_CONFIG" --libs "$2" 2>&AS_MESSAGE_LOG_FD`; then
1359 $1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1360 $1_LIBS=`AS_ECHO(["$$1_LIBS"]) | sed -e 's,///*,/,g'`
1361 AC_MSG_RESULT([yes CFLAGS='$$1_CFLAGS' LIBS='$$1_LIBS'])
1367 ## If we have a custom action on failure, don't print errors, but
1368 ## do set a variable so people can do so. Do it in a subshell
1369 ## to capture any diagnostics in invoking pkg-config.
1370 $1_PKG_ERRORS=`("$PKG_CONFIG" --print-errors "$2") 2>&1`
1371 ifelse([$4], ,echo "$$1_PKG_ERRORS",)
1377 echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
1378 echo "*** See http://www.freedesktop.org/software/pkgconfig"
1382 if test $succeeded = yes; then
1383 ifelse([$3], , :, [$3])
1385 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.])], [$4])
1390 if test "${with_sound}" != "no"; then
1391 # Sound support for GNU/Linux, the free BSDs, and MinGW.
1392 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h],
1393 have_sound_header=yes, [], [
1395 #define WIN32_LEAN_AND_MEAN
1396 #include <windows.h>
1399 test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
1400 AC_MSG_ERROR([OSS sound support requested but not found.])
1402 if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
1403 # Emulation library used on NetBSD.
1404 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1405 test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
1406 AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
1407 dnl FIXME? If we did find ossaudio, should we set with_sound=bsd-ossaudio?
1408 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1412 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1414 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1415 PKG_CHECK_MODULES(ALSA, $ALSA_MODULES, HAVE_ALSA=yes, HAVE_ALSA=no)
1416 if test $HAVE_ALSA = yes; then
1417 SAVE_CFLAGS="$CFLAGS"
1419 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1420 LIBS="$ALSA_LIBS $LIBS"
1421 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1422 emacs_alsa_normal=yes,
1423 emacs_alsa_normal=no)
1424 if test "$emacs_alsa_normal" != yes; then
1425 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1426 [[snd_lib_error_set_handler (0);]])],
1427 emacs_alsa_subdir=yes,
1428 emacs_alsa_subdir=no)
1429 if test "$emacs_alsa_subdir" != yes; then
1430 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1432 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1435 CFLAGS="$SAVE_CFLAGS"
1437 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1438 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1439 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1440 elif test "${with_sound}" = "alsa"; then
1441 AC_MSG_ERROR([ALSA sound support requested but not found.])
1443 fi dnl with_sound = alsa|yes
1445 dnl Define HAVE_SOUND if we have sound support. We know it works and
1446 dnl compiles only on the specified platforms. For others, it
1447 dnl probably doesn't make sense to try.
1448 dnl FIXME So surely we should bypass this whole section if not using
1449 dnl one of these platforms?
1450 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1452 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1453 dnl Adjust the --with-sound help text if you change this.
1454 gnu-linux|freebsd|netbsd|mingw32)
1455 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1461 AC_SUBST(CFLAGS_SOUND)
1464 dnl checks for header files
1465 AC_CHECK_HEADERS_ONCE(
1469 sys/utsname.h pwd.h utmp.h util.h)
1471 AC_MSG_CHECKING(if personality LINUX32 can be set)
1472 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1473 emacs_cv_personality_linux32=yes,
1474 emacs_cv_personality_linux32=no)
1475 AC_MSG_RESULT($emacs_cv_personality_linux32)
1477 if test $emacs_cv_personality_linux32 = yes; then
1478 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1479 [Define to 1 if personality LINUX32 can be set.])
1482 dnl On Solaris 8 there's a compilation warning for term.h because
1483 dnl it doesn't define `bool'.
1484 AC_CHECK_HEADERS(term.h, , , -)
1486 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1488 if test $ac_cv_have_decl_sys_siglist != yes; then
1489 # For Tru64, at least:
1490 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1495 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1496 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1497 #if HAVE_SYS_SOCKET_H
1498 #include <sys/socket.h>
1500 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1501 #if HAVE_SYS_SOCKET_H
1502 #include <sys/socket.h>
1504 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1505 #if HAVE_SYS_SOCKET_H
1506 #include <sys/socket.h>
1509 dnl checks for structure members
1510 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1511 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1512 struct ifreq.ifr_addr,
1513 struct ifreq.ifr_addr.sa_len], , ,
1514 [AC_INCLUDES_DEFAULT
1515 #if HAVE_SYS_SOCKET_H
1516 #include <sys/socket.h>
1522 dnl Check for endianness.
1523 dnl AC_C_BIGENDIAN is done by gnulib.
1525 dnl check for Make feature
1526 dnl AC_PROG_MAKE_SET is done by Automake.
1531 dnl check for GNU Make if we have GCC and autodepend is on.
1532 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1533 AC_MSG_CHECKING([whether we are using GNU Make])
1535 testval=`${MAKE-make} --version 2>/dev/null | grep 'GNU Make'`
1536 if test "x$testval" != x; then
1539 ac_enable_autodepend=no
1541 AC_MSG_RESULT([$HAVE_GNU_MAKE])
1542 if test $HAVE_GNU_MAKE = yes; then
1543 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1544 SAVE_CFLAGS="$CFLAGS"
1545 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1546 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1547 CFLAGS="$SAVE_CFLAGS"
1548 test -f deps.d || ac_enable_autodepend=no
1550 AC_MSG_RESULT([$ac_enable_autodepend])
1552 if test $ac_enable_autodepend = yes; then
1553 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1554 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1555 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1556 deps_frag=autodeps.mk
1559 deps_frag=$srcdir/src/$deps_frag
1562 AC_SUBST_FILE(deps_frag)
1565 lisp_frag=$srcdir/src/lisp.mk
1566 AC_SUBST_FILE(lisp_frag)
1569 dnl checks for operating system services
1570 AC_SYS_LONG_FILE_NAMES
1572 #### Choose a window system.
1574 ## We leave window_system equal to none if
1575 ## we end up building without one. Any new window system should
1576 ## set window_system to an appropriate value and add objects to
1577 ## window-system-specific substs.
1581 if test "$no_x" != yes; then
1585 LD_SWITCH_X_SITE_RPATH=
1586 if test "${x_libraries}" != NONE; then
1587 if test -n "${x_libraries}"; then
1588 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1589 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1591 x_default_search_path=""
1592 x_search_path=${x_libraries}
1593 if test -z "${x_search_path}"; then
1594 x_search_path=/usr/lib
1596 for x_library in `echo ${x_search_path}: | \
1597 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1599 ${x_library}/X11/%L/%T/%N%C%S:\
1600 ${x_library}/X11/%l/%T/%N%C%S:\
1601 ${x_library}/X11/%T/%N%C%S:\
1602 ${x_library}/X11/%L/%T/%N%S:\
1603 ${x_library}/X11/%l/%T/%N%S:\
1604 ${x_library}/X11/%T/%N%S"
1605 if test x"${x_default_search_path}" = x; then
1606 x_default_search_path=${x_search_path}
1608 x_default_search_path="${x_search_path}:${x_default_search_path}"
1612 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1614 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1615 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1618 if test x"${x_includes}" = x; then
1619 bitmapdir=/usr/include/X11/bitmaps
1621 # accumulate include directories that have X11 bitmap subdirectories
1623 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1624 if test -d "${bmd}/X11/bitmaps"; then
1625 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1627 if test -d "${bmd}/bitmaps"; then
1628 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1631 if test ${bmd_acc} != "dummyval"; then
1632 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1639 tmp_CPPFLAGS="$CPPFLAGS"
1640 tmp_CFLAGS="$CFLAGS"
1641 CPPFLAGS="$CPPFLAGS -x objective-c"
1642 CFLAGS="$CFLAGS -x objective-c"
1645 if test "${with_ns}" != no; then
1646 if test "${opsys}" = darwin; then
1648 ns_appdir=`pwd`/nextstep/Emacs.app
1649 ns_appbindir=${ns_appdir}/Contents/MacOS
1650 ns_appresdir=${ns_appdir}/Contents/Resources
1651 ns_appsrc=Cocoa/Emacs.base
1652 elif test -f $GNUSTEP_CONFIG_FILE; then
1654 ns_appdir=`pwd`/nextstep/Emacs.app
1655 ns_appbindir=${ns_appdir}
1656 ns_appresdir=${ns_appdir}/Resources
1657 ns_appsrc=GNUstep/Emacs.base
1658 dnl FIXME sourcing this several times in subshells seems inefficient.
1659 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1660 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1661 dnl I seemed to need these as well with GNUstep-startup 0.25.
1662 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1663 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1664 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1665 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1666 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1667 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1668 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1669 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1670 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1671 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1672 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1673 dnl If they had chosen to either define it or not, we could have
1674 dnl just used AC_CHECK_DECL here.
1675 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1676 emacs_cv_objc_exceptions,
1677 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1678 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1682 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1683 if test $emacs_cv_objc_exceptions = yes; then
1684 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1685 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1686 [Define if GNUstep uses ObjC exceptions.])
1687 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1691 dnl This is only used while we test the NS headers, it gets reset below.
1692 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1694 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1695 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1696 files are missing or cannot be compiled.])])
1699 if test "${NS_IMPL_COCOA}" = "yes"; then
1700 AC_MSG_CHECKING([for OSX 10.4 or newer])
1701 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1703 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1704 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
1707 error "OSX 10.4 or newer required";
1711 ns_osx_have_104=yes,
1713 AC_MSG_RESULT([$ns_osx_have_104])
1715 if test $ns_osx_have_104 = no; then
1716 AC_MSG_ERROR([`OSX 10.4 or newer is required']);
1718 AC_MSG_CHECKING([for OSX 10.5 or newer])
1719 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1721 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1722 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1050
1725 error "OSX 10.5 not found";
1729 ns_osx_have_105=yes,
1731 AC_MSG_RESULT([$ns_osx_have_105])
1732 if test $ns_osx_have_105 = yes; then
1733 macfont_file="macfont.o"
1736 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1738 ns_have_nsinteger=yes,
1739 ns_have_nsinteger=no)
1740 if test $ns_have_nsinteger = yes; then
1741 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1745 AC_SUBST(LIBS_GNUSTEP)
1747 INSTALL_ARCH_INDEP_EXTRA=install-etc
1748 ns_self_contained=no
1751 if test "${HAVE_NS}" = yes; then
1752 if test "$with_toolkit_scroll_bars" = "no"; then
1753 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1756 window_system=nextstep
1757 # set up packaging dirs
1758 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1759 ns_self_contained=yes
1760 prefix=${ns_appresdir}
1761 exec_prefix=${ns_appbindir}
1762 dnl This one isn't really used, only archlibdir is.
1763 libexecdir="\${ns_appbindir}/libexec"
1764 archlibdir="\${ns_appbindir}/libexec"
1765 etcdocdir="\${ns_appresdir}/etc"
1766 etcdir="\${ns_appresdir}/etc"
1767 dnl FIXME maybe set datarootdir instead.
1768 dnl That would also get applications, icons, man.
1769 infodir="\${ns_appresdir}/info"
1770 mandir="\${ns_appresdir}/man"
1771 lispdir="\${ns_appresdir}/lisp"
1772 INSTALL_ARCH_INDEP_EXTRA=
1775 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o $macfont_file"
1777 CFLAGS="$tmp_CFLAGS"
1778 CPPFLAGS="$tmp_CPPFLAGS"
1779 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1780 AC_SUBST(ns_self_contained)
1782 AC_SUBST(NS_OBJC_OBJ)
1793 if test "${with_w32}" != no; then
1796 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1797 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1798 cannot be found.])])
1801 ## Using --with-w32 with MinGW is a no-op, but we allow it.
1804 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
1809 if test "${opsys}" = "mingw32"; then
1810 AC_MSG_CHECKING([whether Windows API headers are recent enough])
1811 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1812 #include <windows.h>
1813 #include <usp10.h>]],
1814 [[PIMAGE_NT_HEADERS pHeader;
1815 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
1816 [emacs_cv_w32api=yes
1819 AC_MSG_RESULT($emacs_cv_w32api)
1820 if test "${emacs_cv_w32api}" = "no"; then
1821 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
1832 if test "${HAVE_W32}" = "yes"; then
1833 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1834 AC_CHECK_TOOL(WINDRES, [windres],
1835 [AC_MSG_ERROR([No resource compiler found.])])
1836 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1837 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1838 EMACSRES="emacs.res"
1839 case "$canonical" in
1840 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
1841 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
1843 if test "${opsys}" = "cygwin"; then
1844 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1845 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1846 # Tell the linker that emacs.res is an object (which we compile from
1847 # the rc file), not a linker script.
1848 W32_RES_LINK="-Wl,emacs.res"
1850 UPDATE_MANIFEST=update-game-score.exe.manifest
1851 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
1852 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
1853 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
1854 W32_RES_LINK="\$(EMACSRES)"
1855 CLIENTRES="emacsclient.res"
1856 CLIENTW="emacsclientw\$(EXEEXT)"
1857 FIRSTFILE_OBJ=firstfile.o
1860 LIBS_ECLIENT="-lcomctl32"
1861 LIB_WSOCK32="-lwsock32"
1862 NTLIB="ntlib.$ac_objext"
1863 XARGS_LIMIT="-s 10000"
1869 AC_SUBST(EMACS_MANIFEST)
1870 AC_SUBST(UPDATE_MANIFEST)
1873 AC_SUBST(W32_RES_LINK)
1874 AC_SUBST(FIRSTFILE_OBJ)
1877 AC_SUBST(LIBS_ECLIENT)
1878 AC_SUBST(LIB_WSOCK32)
1880 AC_SUBST(XARGS_LIMIT)
1882 if test "${HAVE_W32}" = "yes"; then
1887 ## $window_system is now set to the window system we will
1890 if test "$window_system" = none && test "$gl_gcc_warnings" = yes; then
1891 # Too many warnings for now.
1893 nw="$nw -Wsuggest-attribute=const"
1894 nw="$nw -Wsuggest-attribute=noreturn"
1895 gl_MANYWARN_COMPLEMENT([WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
1897 gl_WARN_ADD([-Wno-unused-variable])
1898 gl_WARN_ADD([-Wno-unused-but-set-variable])
1899 gl_WARN_ADD([-Wno-unused-but-set-parameter])
1907 case "${window_system}" in
1912 case "${with_x_toolkit}" in
1913 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1914 motif ) USE_X_TOOLKIT=MOTIF ;;
1916 term_header=gtkutil.h
1917 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1918 dnl USE_X_TOOLKIT is set.
1919 USE_X_TOOLKIT=none ;;
1920 gtk2 ) with_gtk2=yes
1921 term_header=gtkutil.h
1922 USE_X_TOOLKIT=none ;;
1923 gtk3 ) with_gtk3=yes
1924 term_header=gtkutil.h
1925 USE_X_TOOLKIT=none ;;
1926 no ) USE_X_TOOLKIT=none ;;
1927 dnl If user did not say whether to use a toolkit, make this decision later:
1928 dnl use the toolkit if we have gtk, or X11R5 or newer.
1929 * ) USE_X_TOOLKIT=maybe ;;
1933 term_header=nsterm.h
1936 term_header=w32term.h
1940 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1941 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1942 if test "$HAVE_XSERVER" = true ||
1943 test -n "$DISPLAY" ||
1944 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1945 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1946 were found. You should install the relevant development files for X
1947 and for the toolkit you want, such as Gtk+ or Motif. Also make
1948 sure you have development files for image handling, i.e.
1949 tiff, gif, jpeg, png and xpm.
1950 If you are sure you want Emacs compiled without X window support, pass
1956 # Does the opsystem file prohibit the use of the GNU malloc?
1957 # Assume not, until told otherwise.
1961 [whether malloc is Doug Lea style],
1962 [emacs_cv_var_doug_lea_malloc],
1963 [emacs_cv_var_doug_lea_malloc=no
1964 dnl Hooks do not work with address sanitization.
1965 if test "$emacs_cv_sanitize_address" != yes; then
1968 [[#include <malloc.h>
1969 static void hook (void) {}]],
1970 [[malloc_set_state (malloc_get_state ());
1971 __after_morecore_hook = hook;
1972 __malloc_initialize_hook = hook;]])],
1973 [emacs_cv_var_doug_lea_malloc=yes])])
1975 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1977 system_malloc=$emacs_cv_sanitize_address
1979 ## darwin ld insists on the use of malloc routines in the System framework.
1980 darwin|sol2-10) system_malloc=yes ;;
1984 if test "${system_malloc}" = "yes"; then
1985 AC_DEFINE([SYSTEM_MALLOC], 1,
1986 [Define to 1 to use the system memory allocator, even if it is not
1990 (The GNU allocators don't work with this system configuration.)"
1993 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1994 VMLIMIT_OBJ=vm-limit.o
1996 AC_CHECK_HEADERS([sys/vlimit.h])
1997 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
2000 [[extern char data_start[]; char ch;]],
2001 [[return data_start < &ch;]])],
2002 [emacs_cv_data_start=yes],
2003 [emacs_cv_data_start=no])])
2004 if test $emacs_cv_data_start = yes; then
2005 AC_DEFINE([HAVE_DATA_START], 1,
2006 [Define to 1 if data_start is the address of the start
2007 of the main data segment.])
2010 AC_SUBST(GMALLOC_OBJ)
2011 AC_SUBST(VMLIMIT_OBJ)
2013 if test "$doug_lea_malloc" = "yes" ; then
2014 if test "$GNU_MALLOC" = yes ; then
2016 (Using Doug Lea's new malloc from the GNU C Library.)"
2018 AC_DEFINE(DOUG_LEA_MALLOC, 1,
2019 [Define to 1 if the system memory allocator is Doug Lea style,
2020 with malloc hooks and malloc_set_state.])
2022 ## Use mmap directly for allocating larger buffers.
2023 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
2024 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
2025 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
2027 gnu*) REL_ALLOC=no ;;
2031 if test x"${REL_ALLOC}" = x; then
2032 REL_ALLOC=${GNU_MALLOC}
2035 use_mmap_for_buffers=no
2037 cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
2041 if test $use_mmap_for_buffers = yes; then
2042 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
2046 LIBS="$LIBS_SYSTEM $LIBS"
2048 dnl If found, this adds -ldnet to LIBS, which Autoconf uses for checks.
2049 AC_CHECK_LIB(dnet, dnet_ntoa)
2050 dnl This causes -lresolv to get used in subsequent tests,
2051 dnl which causes failures on some systems such as HPUX 9.
2052 dnl AC_CHECK_LIB(resolv, gethostbyname)
2054 dnl FIXME replace main with a function we actually want from this library.
2055 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
2057 dnl Check if pthreads is available.
2059 AC_CHECK_HEADERS_ONCE(pthread.h)
2060 if test "$ac_cv_header_pthread_h"; then
2061 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
2062 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
2063 dnl testing for pthread_self if Emacs uses gmalloc.c.
2064 if test "$GMALLOC_OBJ" = gmalloc.o; then
2065 emacs_pthread_function=pthread_atfork
2067 emacs_pthread_function=pthread_self
2069 AC_CHECK_LIB(pthread, $emacs_pthread_function, HAVE_PTHREAD=yes)
2071 if test "$HAVE_PTHREAD" = yes; then
2072 case "${canonical}" in
2074 *) LIB_PTHREAD="-lpthread"
2075 LIBS="$LIB_PTHREAD $LIBS" ;;
2077 AC_DEFINE(HAVE_PTHREAD, 1, [Define to 1 if you have pthread (-lpthread).])
2079 # Some systems optimize for single-threaded programs by default, and
2080 # need special flags to disable these optimizations. For example, the
2081 # definition of 'errno' in <errno.h>.
2082 if test "$opsys" = aix4-2; then
2083 AC_DEFINE([_THREAD_SAFE], [1],
2084 [Define to 1 if your system requires this in multithreaded code.])
2087 AC_SUBST([LIB_PTHREAD])
2089 AC_CHECK_LIB(pthreads, cma_open)
2091 ## Note: when using cpp in s/aix4.2.h, this definition depended on
2092 ## HAVE_LIBPTHREADS. That was not defined earlier in configure when
2093 ## the system file was sourced. Hence the value of LIBS_SYSTEM
2094 ## added to LIBS in configure would never contain the pthreads part,
2095 ## but the value used in Makefiles might. FIXME?
2097 ## -lpthreads seems to be necessary for Xlib in X11R6, and should
2098 ## be harmless on older versions of X where it happens to exist.
2099 test "$opsys" = "aix4-2" && \
2100 test $ac_cv_lib_pthreads_cma_open = yes && \
2101 LIBS_SYSTEM="$LIBS_SYSTEM -lpthreads"
2103 dnl Check for need for bigtoc support on IBM AIX
2107 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
2109 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
2110 *) gdb_cv_bigtoc=-bbigtoc ;;
2113 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
2114 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
2119 # Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
2120 # used for the tests that follow. We set them back to REAL_CFLAGS and
2121 # REAL_CPPFLAGS later on.
2123 REAL_CFLAGS="$CFLAGS"
2124 REAL_CPPFLAGS="$CPPFLAGS"
2126 if test "${HAVE_X11}" = "yes"; then
2127 DEFS="$C_SWITCH_X_SITE $DEFS"
2128 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2130 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2131 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2133 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2134 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2135 # but it's more convenient here to set LD_RUN_PATH since this
2136 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2137 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2138 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2142 if test "${opsys}" = "gnu-linux"; then
2143 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2144 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2145 [[XOpenDisplay ("foo");]])],
2146 [xgnu_linux_first_failure=no],
2147 [xgnu_linux_first_failure=yes])
2148 if test "${xgnu_linux_first_failure}" = "yes"; then
2149 OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
2150 OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
2151 OLD_CPPFLAGS="$CPPFLAGS"
2153 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2154 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2155 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2156 LIBS="$LIBS -b i486-linuxaout"
2157 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2158 [[XOpenDisplay ("foo");]])],
2159 [xgnu_linux_second_failure=no],
2160 [xgnu_linux_second_failure=yes])
2161 if test "${xgnu_linux_second_failure}" = "yes"; then
2162 # If we get the same failure with -b, there is no use adding -b.
2163 # So take it out. This plays safe.
2164 LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
2165 C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
2166 CPPFLAGS="$OLD_CPPFLAGS"
2177 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2178 # header files included from there.
2179 AC_MSG_CHECKING(for Xkb)
2180 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2181 #include <X11/XKBlib.h>]],
2182 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2183 emacs_xkb=yes, emacs_xkb=no)
2184 AC_MSG_RESULT($emacs_xkb)
2185 if test $emacs_xkb = yes; then
2186 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2189 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2190 XScreenNumberOfScreen)
2193 if test "${window_system}" = "x11"; then
2194 AC_MSG_CHECKING(X11 version 6)
2195 AC_CACHE_VAL(emacs_cv_x11_version_6,
2196 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2197 [[#if XlibSpecificationRelease < 6
2200 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2201 if test $emacs_cv_x11_version_6 = yes; then
2202 AC_MSG_RESULT(6 or newer)
2203 AC_DEFINE(HAVE_X11R6, 1,
2204 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2205 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2206 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2210 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2211 [Define if you have usable X11R6-style XIM support.])
2215 AC_MSG_RESULT(before 6)
2220 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
2222 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2223 if test "${with_rsvg}" != "no"; then
2224 RSVG_REQUIRED=2.11.0
2225 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2227 PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, HAVE_RSVG=yes, :)
2228 AC_SUBST(RSVG_CFLAGS)
2231 if test $HAVE_RSVG = yes; then
2232 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2233 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2234 # Windows loads librsvg dynamically
2235 if test "${opsys}" = "mingw32"; then
2238 LIBS="$RSVG_LIBS $LIBS"
2244 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${HAVE_W32}" = "yes"; then
2245 if test "${with_imagemagick}" != "no"; then
2246 ## 6.3.5 is the earliest version known to work; see Bug#17339.
2247 ## 6.8.2 makes Emacs crash; see Bug#13867.
2248 IMAGEMAGICK_MODULE="Wand >= 6.3.5 Wand != 6.8.2"
2249 PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
2250 AC_SUBST(IMAGEMAGICK_CFLAGS)
2251 AC_SUBST(IMAGEMAGICK_LIBS)
2253 if test $HAVE_IMAGEMAGICK = yes; then
2254 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2255 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2256 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2257 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
2265 gtk_term_header=$term_header
2268 if test "${opsys}" != "mingw32"; then
2269 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2272 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2274 dnl Checks for libraries.
2275 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
2276 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2277 AC_MSG_ERROR($GTK_PKG_ERRORS)
2279 if test "$pkg_check_gtk" = "yes"; then
2280 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2281 GTK_OBJ=emacsgtkfixed.o
2282 gtk_term_header=gtkutil.h
2283 USE_GTK_TOOLKIT="GTK3"
2284 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2285 AC_DEFINE([GDK_DISABLE_DEPRECATION_WARNINGS], [1],
2286 [Define to 1 to disable GTK+/GDK deprecation warnings.])
2287 AC_DEFINE([GLIB_DISABLE_DEPRECATION_WARNINGS], [1],
2288 [Define to 1 to disable Glib deprecation warnings.])
2292 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2296 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2299 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2301 dnl Checks for libraries.
2302 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
2303 if test "$pkg_check_gtk" = "no" &&
2304 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2306 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2308 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2312 if test x"$pkg_check_gtk" = xyes; then
2315 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2316 CFLAGS="$CFLAGS $GTK_CFLAGS"
2317 LIBS="$GTK_LIBS $LIBS"
2318 dnl Try to compile a simple GTK program.
2319 AC_MSG_CHECKING([whether GTK compiles])
2323 [[/* Check the Gtk and Glib APIs. */
2324 #include <gtk/gtk.h>
2325 #include <glib-object.h>
2327 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2331 GtkSettings *gs = 0;
2332 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2333 strict C prohibits this. Use gtk_main_iteration to test that the
2334 libraries are there. */
2335 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2336 0, 0, 0, G_CALLBACK (callback), 0))
2337 gtk_main_iteration ();
2340 AC_MSG_RESULT([$GTK_COMPILES])
2341 if test "${GTK_COMPILES}" != "yes"; then
2343 if test "$USE_X_TOOLKIT" != "maybe"; then
2344 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2348 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2349 GTK_OBJ="gtkutil.o $GTK_OBJ"
2350 term_header=$gtk_term_header
2352 if "$PKG_CONFIG" --atleast-version=2.10 gtk+-2.0; then
2355 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2356 closing open displays. This is no problem if you just use
2357 one display, but if you use more than one and close one of them
2367 if test "${HAVE_GTK}" = "yes"; then
2369 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2370 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2371 if test "$with_toolkit_scroll_bars" != no; then
2372 with_toolkit_scroll_bars=yes
2375 dnl Check if we have the old file selection dialog declared and
2376 dnl in the link library. In 2.x it may be in the library,
2377 dnl but not declared if deprecated featured has been selected out.
2378 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2379 HAVE_GTK_FILE_SELECTION=no
2380 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2381 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2382 #include <gtk/gtk.h>])
2383 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2384 AC_CHECK_FUNCS(gtk_file_selection_new)
2387 dnl Same as above for gtk_handle_box.
2388 HAVE_GTK_HANDLE_BOX=no
2389 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2390 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2391 #include <gtk/gtk.h>])
2392 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2393 AC_CHECK_FUNCS(gtk_handle_box_new)
2396 dnl Same as above for gtk_tearoff_menu_item.
2397 HAVE_GTK_TEAROFF_MENU_ITEM=no
2398 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2399 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2400 #include <gtk/gtk.h>])
2401 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2402 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2405 dnl Check for functions introduced in 2.14 and later.
2406 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2407 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2408 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2409 gtk_orientable_set_orientation \
2410 gtk_window_set_has_resize_grip)
2412 term_header=gtkutil.h
2415 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2416 dnl other platforms.
2419 if test "${with_dbus}" = "yes"; then
2420 PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
2421 if test "$HAVE_DBUS" = yes; then
2422 LIBS="$LIBS $DBUS_LIBS"
2423 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2424 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2425 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2427 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2428 dbus_type_is_valid \
2429 dbus_validate_bus_name \
2430 dbus_validate_path \
2431 dbus_validate_interface \
2432 dbus_validate_member)
2438 dnl GSettings has been tested under GNU/Linux only.
2440 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2441 PKG_CHECK_MODULES(GSETTINGS, gio-2.0 >= 2.26, HAVE_GSETTINGS=yes, HAVE_GSETTINGS=no)
2442 if test "$HAVE_GSETTINGS" = "yes"; then
2444 CFLAGS="$CFLAGS $GSETTINGS_CFLAGS"
2446 LIBS="$LIBS $GSETTINGS_LIBS"
2447 AC_MSG_CHECKING([whether GSettings is in gio])
2450 [[/* Check that gsettings really is present. */
2451 #include <glib-object.h>
2452 #include <gio/gio.h>
2455 GSettings *settings;
2456 GVariant *val = g_settings_get_value (settings, "");
2458 [], HAVE_GSETTINGS=no)
2459 AC_MSG_RESULT([$HAVE_GSETTINGS])
2461 if test "$HAVE_GSETTINGS" = "yes"; then
2462 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2463 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2464 SETTINGS_LIBS="$GSETTINGS_LIBS"
2471 dnl GConf has been tested under GNU/Linux only.
2472 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2474 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2475 PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
2476 if test "$HAVE_GCONF" = yes; then
2477 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2478 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2479 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2480 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2484 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2485 PKG_CHECK_MODULES(GOBJECT, gobject-2.0 >= 2.0, HAVE_GOBJECT=yes, HAVE_GOBJECT=no)
2486 if test "$HAVE_GOBJECT" = "yes"; then
2487 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2488 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2490 SAVE_CFLAGS="$CFLAGS"
2492 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2493 LIBS="$SETTINGS_LIBS $LIBS"
2494 CFLAGS="$SAVE_CFLAGS"
2497 AC_SUBST(SETTINGS_CFLAGS)
2498 AC_SUBST(SETTINGS_LIBS)
2501 dnl SELinux is available for GNU/Linux only.
2504 if test "${with_selinux}" = "yes"; then
2505 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2506 if test "$HAVE_LIBSELINUX" = yes; then
2507 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2508 LIBSELINUX_LIBS=-lselinux
2511 AC_SUBST(LIBSELINUX_LIBS)
2515 if test "${with_gnutls}" = "yes" ; then
2516 PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 3.0.0], HAVE_GNUTLS3=yes, HAVE_GNUTLS3=no)
2517 if test "${HAVE_GNUTLS3}" = "yes"; then
2518 AC_DEFINE(HAVE_GNUTLS3, 1, [Define if using GnuTLS v3.])
2521 PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6], HAVE_GNUTLS=yes, HAVE_GNUTLS=no)
2523 if test "${HAVE_GNUTLS}" = "yes"; then
2524 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2527 # Windows loads GnuTLS dynamically
2528 if test "${opsys}" = "mingw32"; then
2533 AC_SUBST(LIBGNUTLS_LIBS)
2534 AC_SUBST(LIBGNUTLS_CFLAGS)
2539 dnl FIXME? Don't auto-detect on NS, but do allow someone to specify
2540 dnl a particular library. This doesn't make much sense?
2541 if test "${with_ns}" = yes && test ${with_file_notification} = yes; then
2542 with_file_notification=no
2545 dnl MS Windows native file monitor is available for mingw32 only.
2546 case $with_file_notification,$opsys in
2547 w32,* | yes,mingw32)
2548 AC_CHECK_HEADER(windows.h)
2549 if test "$ac_cv_header_windows_h" = yes ; then
2550 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2551 NOTIFY_OBJ=w32notify.o
2552 NOTIFY_SUMMARY="yes (w32)"
2556 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2557 dnl has been added in glib 2.24. It has been tested under
2558 dnl GNU/Linux only. We take precedence over inotify, but this makes
2559 dnl only sense when glib has been compiled with inotify support. How
2561 case $with_file_notification,$NOTIFY_OBJ in
2563 PKG_CHECK_MODULES(GFILENOTIFY, gio-2.0 >= 2.24, HAVE_GFILENOTIFY=yes, HAVE_GFILENOTIFY=no)
2564 if test "$HAVE_GFILENOTIFY" = "yes"; then
2565 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2566 NOTIFY_OBJ=gfilenotify.o
2567 NOTIFY_SUMMARY="yes -lgio (gfile)"
2571 dnl inotify is only available on GNU/Linux.
2572 case $with_file_notification,$NOTIFY_OBJ in
2574 AC_CHECK_HEADER(sys/inotify.h)
2575 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2576 AC_CHECK_FUNC(inotify_init1)
2577 if test "$ac_cv_func_inotify_init1" = yes; then
2578 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2579 NOTIFY_OBJ=inotify.o
2580 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2585 case $with_file_notification,$NOTIFY_OBJ in
2586 yes,* | no,* | *,?*) ;;
2587 *) AC_MSG_ERROR([File notification `$with_file_notification' requested but requirements not found.]) ;;
2590 if test -n "$NOTIFY_OBJ"; then
2591 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2593 AC_SUBST(NOTIFY_OBJ)
2594 AC_SUBST(GFILENOTIFY_CFLAGS)
2595 AC_SUBST(GFILENOTIFY_LIBS)
2597 dnl Do not put whitespace before the #include statements below.
2598 dnl Older compilers (eg sunos4 cc) choke on it.
2601 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2602 if test "$with_xaw3d" != no; then
2603 AC_CACHE_VAL(emacs_cv_xaw3d,
2604 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2605 #include <X11/Intrinsic.h>
2606 #include <X11/Xaw3d/Simple.h>]],
2608 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2609 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2610 emacs_cv_xaw3d=no)])
2614 if test $emacs_cv_xaw3d = yes; then
2615 AC_MSG_CHECKING(for xaw3d)
2616 AC_MSG_RESULT([yes; using Lucid toolkit])
2620 AC_DEFINE(HAVE_XAW3D, 1,
2621 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2623 AC_MSG_CHECKING(for xaw3d)
2625 AC_MSG_CHECKING(for libXaw)
2626 AC_CACHE_VAL(emacs_cv_xaw,
2627 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2628 #include <X11/Intrinsic.h>
2629 #include <X11/Xaw/Simple.h>]],
2633 if test $emacs_cv_xaw = yes; then
2634 AC_MSG_RESULT([yes; using Lucid toolkit])
2637 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2638 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2640 AC_MSG_ERROR([No X toolkit could be found.
2641 If you are sure you want Emacs compiled without an X toolkit, pass
2643 to configure. Otherwise, install the development libraries for the toolkit
2644 that you want to use (e.g. Gtk+) and re-run configure.])
2649 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2652 if test "${USE_X_TOOLKIT}" != "none"; then
2653 AC_MSG_CHECKING(X11 toolkit version)
2654 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2655 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2656 [[#if XtSpecificationRelease < 6
2659 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2660 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2661 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2662 AC_MSG_RESULT(6 or newer)
2663 AC_DEFINE(HAVE_X11XTR6, 1,
2664 [Define to 1 if you have the X11R6 or newer version of Xt.])
2665 LIBXTR6="-lSM -lICE"
2667 ## Use libw.a along with X11R6 Xt.
2668 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2671 AC_MSG_RESULT(before 6)
2674 dnl If using toolkit, check whether libXmu.a exists.
2675 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2677 if test x$HAVE_X11XTR6 = xyes; then
2678 LIBS="-lXt -lSM -lICE $LIBS"
2682 AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
2683 test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
2684 dnl ac_cv_lib_Xmu_XmuConvertStandardSelection is also referenced below.
2688 dnl FIXME the logic here seems weird, but this is what cpp was doing.
2689 dnl Why not just test for libxmu in the normal way?
2692 ## These systems don't supply Xmu.
2694 test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
2702 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
2703 if test "${HAVE_X11}" = "yes"; then
2704 if test "${USE_X_TOOLKIT}" != "none"; then
2705 AC_CHECK_LIB(Xext, XShapeQueryExtension)
2710 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2711 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2712 if test -d /usr/include/openmotif; then
2713 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2714 emacs_cv_openmotif=yes
2715 case "$canonical" in
2716 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2717 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2720 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2723 emacs_cv_openmotif=no
2725 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2726 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2727 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2730 Motif version prior to 2.1.
2732 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2733 if test $emacs_cv_motif_version_2_1 = yes; then
2734 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2735 if test x$emacs_cv_openmotif = xyes; then
2736 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2739 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2740 # We put this in CFLAGS temporarily to precede other -I options
2741 # that might be in CFLAGS temporarily.
2742 # We put this in CPPFLAGS where it precedes the other -I options.
2743 OLD_CPPFLAGS=$CPPFLAGS
2745 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2746 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2747 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2749 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2750 if test $emacs_cv_lesstif = yes; then
2751 # Make sure this -I option remains in CPPFLAGS after it is set
2752 # back to REAL_CPPFLAGS.
2753 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2754 # have those other -I options anyway. Ultimately, having this
2755 # directory ultimately in CPPFLAGS will be enough.
2756 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2757 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2760 CPPFLAGS=$OLD_CPPFLAGS
2763 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2764 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2767 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2768 dnl using Motif or Xaw3d is available, and unless
2769 dnl --with-toolkit-scroll-bars=no was specified.
2771 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2772 [Define to 1 if we should use toolkit scroll bars.])dnl
2773 USE_TOOLKIT_SCROLL_BARS=no
2774 if test "${with_toolkit_scroll_bars}" != "no"; then
2775 if test "${USE_X_TOOLKIT}" != "none"; then
2776 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2777 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2779 USE_TOOLKIT_SCROLL_BARS=yes
2780 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2781 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2782 USE_TOOLKIT_SCROLL_BARS=yes
2784 elif test "${HAVE_GTK}" = "yes"; then
2785 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2786 USE_TOOLKIT_SCROLL_BARS=yes
2787 elif test "${HAVE_NS}" = "yes"; then
2788 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2789 USE_TOOLKIT_SCROLL_BARS=yes
2790 elif test "${HAVE_W32}" = "yes"; then
2791 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2792 USE_TOOLKIT_SCROLL_BARS=yes
2796 dnl See if XIM is available.
2797 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2798 #include <X11/Xlib.h>
2799 #include <X11/Xresource.h>]],
2800 [[XIMProc callback;]])],
2802 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2805 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2807 if test "${with_xim}" != "no"; then
2808 AC_DEFINE(USE_XIM, 1,
2809 [Define to 1 if we should use XIM, if it is available.])
2813 if test "${HAVE_XIM}" != "no"; then
2815 if test "$GCC" = yes; then
2816 CFLAGS="$CFLAGS --pedantic-errors"
2818 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2819 #include <X11/Xlib.h>
2820 #include <X11/Xresource.h>]],
2826 XPointer *client_data;
2828 /* If we're not using GCC, it's probably not XFree86, and this is
2829 probably right, but we can't use something like --pedantic-errors. */
2830 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2831 char*, XIMProc, XPointer*);
2833 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2835 [emacs_cv_arg6_star=yes])
2836 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2837 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2838 either XPointer or XPointer*.])dnl
2839 if test "$emacs_cv_arg6_star" = yes; then
2840 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2842 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2847 ### Start of font-backend (under any platform) section.
2848 # (nothing here yet -- this is a placeholder)
2849 ### End of font-backend (under any platform) section.
2851 ### Start of font-backend (under X11) section.
2852 if test "${HAVE_X11}" = "yes"; then
2853 PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
2855 ## Use -lXft if available, unless `--with-xft=no'.
2857 if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2860 if test "x${with_xft}" != "xno"; then
2862 PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
2863 ## Because xftfont.c uses XRenderQueryExtension, we also
2864 ## need to link to -lXrender.
2866 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2867 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2868 OLD_CPPFLAGS="$CPPFLAGS"
2869 OLD_CFLAGS="$CFLAGS"
2871 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2872 CFLAGS="$CFLAGS $XFT_CFLAGS"
2873 XFT_LIBS="-lXrender $XFT_LIBS"
2874 LIBS="$XFT_LIBS $LIBS"
2875 AC_CHECK_HEADER(X11/Xft/Xft.h,
2876 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
2877 [[#include <X11/X.h>]])
2879 if test "${HAVE_XFT}" = "yes"; then
2880 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2882 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2884 CPPFLAGS="$OLD_CPPFLAGS"
2885 CFLAGS="$OLD_CFLAGS"
2887 fi # "${HAVE_XFT}" = "yes"
2888 fi # "$HAVE_XFT" != no
2889 fi # "x${with_xft}" != "xno"
2891 ## We used to allow building with FreeType and without Xft.
2892 ## However, the ftx font backend driver is not in good shape.
2893 if test "$HAVE_XFT" != "yes"; then
2894 dnl For the "Does Emacs use" message at the end.
2898 dnl Strict linkers fail with
2899 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2900 dnl if -lfreetype is not specified.
2901 dnl The following is needed to set FREETYPE_LIBS.
2902 PKG_CHECK_MODULES(FREETYPE, freetype2, HAVE_FREETYPE=yes,
2905 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2909 if test "${HAVE_FREETYPE}" = "yes"; then
2910 AC_DEFINE(HAVE_FREETYPE, 1,
2911 [Define to 1 if using the freetype and fontconfig libraries.])
2912 if test "${with_libotf}" != "no"; then
2913 PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
2915 if test "$HAVE_LIBOTF" = "yes"; then
2916 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2917 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2918 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2919 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2920 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2921 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2922 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2926 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2927 dnl Does the new font backend require it, or can it work without it?
2931 if test "${HAVE_LIBOTF}" = yes; then
2932 if test "${with_m17n_flt}" != "no"; then
2933 PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
2934 if test "$HAVE_M17N_FLT" = "yes"; then
2935 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2946 ### End of font-backend (under X11) section.
2948 AC_SUBST(FREETYPE_CFLAGS)
2949 AC_SUBST(FREETYPE_LIBS)
2950 AC_SUBST(FONTCONFIG_CFLAGS)
2951 AC_SUBST(FONTCONFIG_LIBS)
2952 AC_SUBST(LIBOTF_CFLAGS)
2953 AC_SUBST(LIBOTF_LIBS)
2954 AC_SUBST(M17N_FLT_CFLAGS)
2955 AC_SUBST(M17N_FLT_LIBS)
2957 ### Use -lXpm if available, unless `--with-xpm=no'.
2958 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
2961 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
2962 if test "${with_xpm}" != "no"; then
2963 SAVE_CPPFLAGS="$CPPFLAGS"
2964 SAVE_LDFLAGS="$LDFLAGS"
2965 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
2966 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
2967 AC_CHECK_HEADER(X11/xpm.h,
2968 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
2969 if test "${HAVE_XPM}" = "yes"; then
2970 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2971 AC_EGREP_CPP(no_return_alloc_pixels,
2972 [#include "X11/xpm.h"
2973 #ifndef XpmReturnAllocPixels
2974 no_return_alloc_pixels
2976 ], HAVE_XPM=no, HAVE_XPM=yes)
2978 if test "${HAVE_XPM}" = "yes"; then
2979 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
2983 CPPFLAGS="$SAVE_CPPFLAGS"
2984 LDFLAGS="$SAVE_LDFLAGS"
2989 if test "${HAVE_XPM}" = "yes"; then
2990 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2995 if test "${HAVE_X11}" = "yes"; then
2996 dnl Avoid Xpm on AIX unless requested, as it crashes; see Bug#17598.
2997 test "$opsys$with_xpm_set" = aix4-2 && with_xpm=no
2999 if test "${with_xpm}" != "no"; then
3000 AC_CHECK_HEADER(X11/xpm.h,
3001 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
3002 if test "${HAVE_XPM}" = "yes"; then
3003 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3004 AC_EGREP_CPP(no_return_alloc_pixels,
3005 [#include "X11/xpm.h"
3006 #ifndef XpmReturnAllocPixels
3007 no_return_alloc_pixels
3009 ], HAVE_XPM=no, HAVE_XPM=yes)
3011 if test "${HAVE_XPM}" = "yes"; then
3019 if test "${HAVE_XPM}" = "yes"; then
3020 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3022 elif test "$opsys,$LUCID_LIBW" = aix4-2,-lXaw; then
3023 dnl AIX -lXaw needs -lXpm linked too; see Bug#17598 Message#152.
3028 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
3029 ### slightly different requirements wrt image libraries (it doesn't
3030 ### use -lXpm because it loads the xpm shared library dynamically at
3032 if test "${opsys}" = "mingw32"; then
3033 if test "${with_xpm}" != "no"; then
3034 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
3038 if test "${HAVE_XPM}" = "yes"; then
3039 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3045 ### Use -ljpeg if available, unless `--with-jpeg=no'.
3046 ### mingw32 doesn't use -ljpeg, since it loads the library dynamically.
3049 if test "${opsys}" = "mingw32"; then
3050 if test "${with_jpeg}" != "no"; then
3051 dnl Checking for jpeglib.h can lose because of a redefinition of
3053 AC_CHECK_HEADER(jerror.h, HAVE_JPEG=yes, HAVE_JPEG=no)
3055 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
3056 if test "${HAVE_JPEG}" = "yes"; then
3057 AC_DEFINE(HAVE_JPEG)
3058 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
3059 [#include <jpeglib.h>
3060 version=JPEG_LIB_VERSION
3062 [AC_DEFINE(HAVE_JPEG)],
3063 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
3066 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3067 if test "${with_jpeg}" != "no"; then
3068 dnl Checking for jpeglib.h can lose because of a redefinition of
3070 AC_CHECK_HEADER(jerror.h,
3071 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
3074 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
3075 if test "${HAVE_JPEG}" = "yes"; then
3076 AC_DEFINE(HAVE_JPEG)
3077 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
3078 [#include <jpeglib.h>
3079 version=JPEG_LIB_VERSION
3081 [AC_DEFINE(HAVE_JPEG)],
3082 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
3085 if test "${HAVE_JPEG}" = "yes"; then
3091 ### Use -lpng if available, unless `--with-png=no'.
3092 ### mingw32 doesn't use -lpng, since it loads the library dynamically.
3095 if test "${opsys}" = "mingw32"; then
3096 if test "${with_png}" != "no"; then
3097 AC_CHECK_HEADER(png.h, HAVE_PNG=yes, HAVE_PNG=no)
3099 if test "${HAVE_PNG}" = "yes"; then
3100 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
3102 AC_CHECK_DECL(png_longjmp,
3104 [AC_DEFINE(PNG_DEPSTRUCT, [],
3105 [Define to empty to suppress deprecation warnings when building
3106 with --enable-gcc-warnings and with libpng versions before 1.5,
3107 which lack png_longjmp.])],
3108 [[#ifdef HAVE_LIBPNG_PNG_H
3109 # include <libpng/png.h>
3115 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3116 if test "${with_png}" != "no"; then
3117 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
3118 # in /usr/include/libpng.
3119 AC_CHECK_HEADERS(png.h libpng/png.h, break)
3120 if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
3121 AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
3125 if test "${HAVE_PNG}" = "yes"; then
3126 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library.])
3128 dnl Some systems, eg NetBSD 6, only provide eg "libpng16", not "libpng".
3129 lpng=`libpng-config --libs 2> /dev/null`
3134 LIBPNG="$lpng -lz -lm"
3136 AC_CHECK_DECL(png_longjmp,
3138 [AC_DEFINE(PNG_DEPSTRUCT, [],
3139 [Define to empty to suppress deprecation warnings when building
3140 with --enable-gcc-warnings and with libpng versions before 1.5,
3141 which lack png_longjmp.])],
3142 [[#ifdef HAVE_LIBPNG_PNG_H
3143 # include <libpng/png.h>
3154 if test "${with_zlib}" != "no"; then
3156 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
3158 case $ac_cv_search_inflateEnd in
3159 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3162 if test "${HAVE_ZLIB}" = "yes"; then
3163 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3164 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3165 if test "${opsys}" = "mingw32"; then
3172 ### Use -ltiff if available, unless `--with-tiff=no'.
3173 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3176 if test "${opsys}" = "mingw32"; then
3177 if test "${with_tiff}" != "no"; then
3178 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3180 if test "${HAVE_TIFF}" = "yes"; then
3181 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3183 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3184 if test "${with_tiff}" != "no"; then
3185 AC_CHECK_HEADER(tiffio.h,
3187 # At least one tiff package requires the jpeg library.
3188 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3189 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3192 if test "${HAVE_TIFF}" = "yes"; then
3193 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3194 dnl FIXME -lz -lm, as per libpng?
3200 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
3201 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3204 if test "${opsys}" = "mingw32"; then
3205 if test "${with_gif}" != "no"; then
3206 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3208 if test "${HAVE_GIF}" = "yes"; then
3209 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3211 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3212 || test "${HAVE_W32}" = "yes"; then
3213 AC_CHECK_HEADER(gif_lib.h,
3214 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3215 # Earlier versions can crash Emacs, but version 5.0 removes EGifPutExtensionLast.
3216 [AC_CHECK_LIB(gif, GifMakeMapObject, HAVE_GIF=yes,
3217 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])])
3219 if test "$HAVE_GIF" = yes; then
3221 elif test "$HAVE_GIF" = maybe; then
3222 # If gif_lib.h but no libgif, try libungif.
3223 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3224 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3227 if test "${HAVE_GIF}" = "yes"; then
3228 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3233 dnl Check for required libraries.
3234 if test "${HAVE_X11}" = "yes"; then
3237 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3238 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3239 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3240 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3241 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3242 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3243 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3244 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3245 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3246 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3248 if test "X${MISSING}" != X; then
3249 AC_MSG_ERROR([The following required libraries were not found:
3251 Maybe some development libraries/packages are missing?
3252 If you don't want to link with them give
3254 as options to configure])
3258 ### Use -lgpm if available, unless `--with-gpm=no'.
3261 if test "${with_gpm}" != "no"; then
3262 AC_CHECK_HEADER(gpm.h,
3263 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3265 if test "${HAVE_GPM}" = "yes"; then
3266 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3272 dnl Check for malloc/malloc.h on darwin
3273 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3276 ### Use NeXTstep API to implement GUI.
3277 if test "${HAVE_NS}" = "yes"; then
3278 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
3279 if test "${NS_IMPL_COCOA}" = "yes"; then
3280 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
3282 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3283 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3284 # See also .m.o rule in Makefile.in */
3285 # FIXME: are all these flags really needed? Document here why. */
3286 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3287 ## Extra CFLAGS applied to src/*.m files.
3288 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3293 ### Use session management (-lSM -lICE) if available
3296 if test "${HAVE_X11}" = "yes"; then
3297 AC_CHECK_HEADER(X11/SM/SMlib.h,
3298 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3300 if test "${HAVE_X_SM}" = "yes"; then
3301 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3305 *) LIBS="$LIBXSM $LIBS" ;;
3311 ### Use XRandr (-lXrandr) if available
3313 if test "${HAVE_X11}" = "yes"; then
3314 XRANDR_REQUIRED=1.2.2
3315 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3316 PKG_CHECK_MODULES(XRANDR, $XRANDR_MODULES, HAVE_XRANDR=yes, HAVE_XRANDR=no)
3317 if test $HAVE_XRANDR = no; then
3318 # Test old way in case pkg-config doesn't have it (older machines).
3319 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3320 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)])
3321 if test $HAVE_XRANDR = yes; then
3322 XRANDR_LIBS=-lXrandr
3323 AC_SUBST(XRANDR_LIBS)
3326 if test $HAVE_XRANDR = yes; then
3327 SAVE_CFLAGS="$CFLAGS"
3329 CFLAGS="$XRANDR_CFLAGS $CFLAGS"
3330 LIBS="$XRANDR_LIBS $LIBS"
3331 AC_CHECK_FUNCS(XRRGetOutputPrimary XRRGetScreenResourcesCurrent)
3332 CFLAGS="$SAVE_CFLAGS"
3335 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3339 ### Use Xinerama (-lXinerama) if available
3341 if test "${HAVE_X11}" = "yes"; then
3342 XINERAMA_REQUIRED=1.0.2
3343 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3344 PKG_CHECK_MODULES(XINERAMA, $XINERAMA_MODULES, HAVE_XINERAMA=yes,
3346 if test $HAVE_XINERAMA = no; then
3347 # Test old way in case pkg-config doesn't have it (older machines).
3348 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3349 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3350 if test $HAVE_XINERAMA = yes; then
3351 XINERAMA_LIBS=-lXinerama
3352 AC_SUBST(XINERAMA_LIBS)
3355 if test $HAVE_XINERAMA = yes; then
3356 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3361 ### Use libxml (-lxml2) if available
3362 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3364 if test "${with_xml2}" != "no"; then
3365 ### I'm not sure what the version number should be, so I just guessed.
3366 PKG_CHECK_MODULES(LIBXML2, libxml-2.0 > 2.6.17, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
3367 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3368 if test "${HAVE_LIBXML2}" != "yes" -a "$opsys" = "darwin"; then
3369 SAVE_CPPFLAGS="$CPPFLAGS"
3370 CPPFLAGS="$CPPFLAGS -I$xcsdkdir/usr/include/libxml2"
3371 AC_CHECK_HEADER(libxml/HTMLparser.h,
3372 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3373 [#include <libxml/HTMLparser.h>])])
3374 CPPFLAGS="$SAVE_CPPFLAGS"
3375 if test "${HAVE_LIBXML2}" = "yes"; then
3376 LIBXML2_CFLAGS="-I'$xcsdkdir/usr/include/libxml2'"
3377 LIBXML2_LIBS="-lxml2"
3380 if test "${HAVE_LIBXML2}" = "yes"; then
3381 if test "${opsys}" != "mingw32"; then
3382 LIBS="$LIBXML2_LIBS $LIBS"
3383 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
3387 if test "${HAVE_LIBXML2}" = "yes"; then
3388 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3395 AC_SUBST(LIBXML2_LIBS)
3396 AC_SUBST(LIBXML2_CFLAGS)
3398 # If netdb.h doesn't declare h_errno, we must declare it by hand.
3399 # On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
3400 if test "${opsys}" = "mingw32"; then
3401 emacs_cv_netdb_declares_h_errno=yes
3403 AC_CACHE_CHECK(whether netdb declares h_errno,
3404 emacs_cv_netdb_declares_h_errno,
3405 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
3406 [[return h_errno;]])],
3407 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
3408 if test $emacs_cv_netdb_declares_h_errno = yes; then
3409 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
3412 # sqrt and other floating-point functions such as fmod and frexp
3413 # are found in -lm on most systems, but mingw32 doesn't use -lm.
3414 if test "${opsys}" != "mingw32"; then
3415 AC_CHECK_LIB(m, sqrt)
3418 # Check for mail-locking functions in a "mail" library. Probably this should
3419 # have the same check as for liblockfile below.
3420 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
3421 if test $have_mail = yes; then
3423 LIBS="$LIBS_MAIL $LIBS"
3424 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
3428 dnl Debian, at least:
3429 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
3430 if test $have_lockfile = yes; then
3431 LIBS_MAIL=-llockfile
3432 LIBS="$LIBS_MAIL $LIBS"
3433 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
3435 # If we have the shared liblockfile, assume we must use it for mail
3436 # locking (e.g. Debian). If we couldn't link against liblockfile
3437 # (no liblockfile.a installed), ensure that we don't need to.
3438 dnl This works for files generally, not just executables.
3439 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3440 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
3441 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
3442 if test $ac_cv_prog_liblockfile = yes; then
3443 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3444 This probably means that movemail could lose mail.
3445 There may be a `development' package to install containing liblockfile.])
3448 AC_CHECK_HEADERS_ONCE(maillock.h)
3451 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3452 ## interlock access to the mail spool. The alternative is a lock file named
3453 ## /usr/spool/mail/$USER.lock.
3456 aix4-2) mail_lock="lockf" ;;
3458 gnu|freebsd|dragonfly|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
3460 ## On GNU/Linux systems, both methods are used by various mail programs.
3461 ## I assume most people are using newer mailers that have heard of flock.
3462 ## Change this if you need to.
3463 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
3464 ## configure gets the right answers, and that means *NOT* using flock.
3465 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3466 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
3467 ## Debian maintainer hasn't provided a clean fix for Emacs.
3468 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
3469 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3470 ## correct logic. -- fx
3471 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3472 ## liblockfile is a Free Software replacement for libmail, used on
3473 ## Debian systems and elsewhere. -rfr.
3476 if test $have_mail = yes || test $have_lockfile = yes; then
3477 test $ac_cv_header_maillock_h = yes && mail_lock=no
3482 mail_lock="none-needed" ;;
3486 case "$mail_lock" in
3487 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3489 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3493 *) BLESSMAIL_TARGET="need-blessmail" ;;
3495 AC_SUBST(BLESSMAIL_TARGET)
3498 AC_CHECK_FUNCS(accept4 gethostname \
3499 getrusage get_current_dir_name \
3501 select getpagesize setlocale \
3502 getrlimit setrlimit shutdown getaddrinfo \
3503 strsignal setitimer \
3504 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
3505 gai_strerror getline getdelim sync \
3506 getpwent endpwent getgrent endgrent \
3508 cfmakeraw cfsetspeed copysign __executable_start log2)
3510 dnl No need to check for aligned_alloc and posix_memalign if using
3511 dnl gmalloc.o, as it supplies them. Don't use these functions on
3512 dnl Darwin as they are incompatible with unexmacosx.c.
3513 if test -z "$GMALLOC_OBJ" && test "$opsys" != darwin; then
3514 AC_CHECK_FUNCS([aligned_alloc posix_memalign], [break])
3517 ## Eric Backus <ericb@lsid.hp.com> says, HP-UX 9.x on HP 700 machines
3518 ## has a broken `rint' in some library versions including math library
3519 ## version number A.09.05.
3520 ## You can fix the math library by installing patch number PHSS_4630.
3521 ## But we can fix it more reliably for Emacs by just not using rint.
3522 ## We also skip HAVE_RANDOM - see comments in src/conf_post.h.
3525 *) AC_CHECK_FUNCS(random rint) ;;
3528 dnl Cannot use AC_CHECK_FUNCS
3529 AC_CACHE_CHECK([for __builtin_unwind_init],
3530 emacs_cv_func___builtin_unwind_init,
3531 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3532 emacs_cv_func___builtin_unwind_init=yes,
3533 emacs_cv_func___builtin_unwind_init=no)])
3534 if test $emacs_cv_func___builtin_unwind_init = yes; then
3535 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3536 [Define to 1 if you have the `__builtin_unwind_init' function.])
3539 AC_CHECK_HEADERS_ONCE(sys/un.h)
3544 AC_CHECK_FUNCS(grantpt)
3546 # PTY-related GNU extensions.
3547 AC_CHECK_FUNCS(getpt posix_openpt)
3549 # Check this now, so that we will NOT find the above functions in ncurses.
3550 # That is because we have not set up to link ncurses in lib-src.
3551 # It's better to believe a function is not available
3552 # than to expect to find it in ncurses.
3553 # Also we need tputs and friends to be able to build at all.
3554 AC_MSG_CHECKING([for library containing tputs])
3555 # Run a test program that contains a call to tputs, a call that is
3556 # never executed. This tests whether a pre-'main' dynamic linker
3557 # works with the library. It's too much trouble to actually call
3558 # tputs in the test program, due to portability hassles. When
3559 # cross-compiling, assume the test program will run if it links.
3560 AC_DEFUN([tputs_link_source], [
3562 [[extern void tputs (const char *, int, int (*)(int));
3563 int main (int argc, char **argv)
3566 tputs (argv[0], 0, 0);
3570 if test "${opsys}" = "mingw32"; then
3573 # Maybe curses should be tried earlier?
3574 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3575 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3577 if test -z "$tputs_library"; then
3581 LIBS_TERMCAP=-l$tputs_library
3583 LIBS="$LIBS_TERMCAP $LIBS"
3585 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3586 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3588 if test "X$msg" != Xno; then
3593 AC_MSG_RESULT([$msg])
3594 if test "X$msg" = Xno; then
3595 AC_MSG_ERROR([The required function `tputs' was not found in any library.
3596 The following libraries were tried (in order):
3597 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3598 Please try installing whichever of these libraries is most appropriate
3599 for your system, together with its header files.
3600 For example, a libncurses-dev(el) or similar package.])
3603 ## Use termcap instead of terminfo?
3604 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3606 ## FIXME? In the cases below where we unconditionally set
3607 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3608 ## if that was found above to have tputs.
3609 ## Should we use the gnu* logic everywhere?
3611 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3612 ## The ncurses library has been moved out of the System framework in
3613 ## Mac OS X 10.2. So if configure detects it, set the command-line
3614 ## option to use it.
3615 darwin) LIBS_TERMCAP="-lncurses" ;;
3617 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3620 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3621 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3622 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3623 [[#if __FreeBSD_version < 400000
3626 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3628 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3630 if test $emacs_cv_freebsd_terminfo = yes; then
3631 LIBS_TERMCAP="-lncurses"
3634 LIBS_TERMCAP="-ltermcap"
3644 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3646 LIBS_TERMCAP="-ltermcap"
3650 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
3652 ## hpux: Make sure we get select from libc rather than from libcurses
3653 ## because libcurses on HPUX 10.10 has a broken version of select.
3654 ## We used to use -lc -lcurses, but this may be cleaner.
3655 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3656 # set that way, now it uses the default). Isn't this a contradiction?
3657 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3661 TERMCAP_OBJ=tparam.o
3662 if test $TERMINFO = yes; then
3663 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3664 TERMCAP_OBJ=terminfo.o
3666 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
3667 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
3669 AC_SUBST(LIBS_TERMCAP)
3670 AC_SUBST(TERMCAP_OBJ)
3673 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3674 # On Darwin, res_init appears not to be useful: see bug#562 and
3675 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3678 if test $opsys != darwin; then
3680 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3681 #include <arpa/nameser.h>
3682 #include <resolv.h>]],
3683 [[return res_init();]])],
3684 have_res_init=yes, have_res_init=no)
3685 if test "$have_res_init" = no; then
3687 LIBS="$LIBS -lresolv"
3688 AC_MSG_CHECKING(for res_init with -lresolv)
3689 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3690 #include <arpa/nameser.h>
3691 #include <resolv.h>]],
3692 [[return res_init();]])],
3693 have_res_init=yes, have_res_init=no)
3694 AC_MSG_RESULT($have_res_init)
3695 if test "$have_res_init" = yes ; then
3701 if test "$have_res_init" = yes; then
3702 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3706 # Do we need the Hesiod library to provide the support routines?
3707 dnl FIXME? Should we be skipping this on Darwin too?
3709 if test "$with_hesiod" != no ; then
3710 # Don't set $LIBS here -- see comments above. FIXME which comments?
3711 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3712 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3713 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3714 if test "$resolv" = yes ; then
3719 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3720 hesiod=yes, :, $RESOLVLIB)])
3722 if test x"$hesiod" = xyes; then
3728 # Do we need libresolv (due to res_init or Hesiod)?
3729 if test "$resolv" = yes && test $opsys != darwin; then
3736 # These tell us which Kerberos-related libraries to use.
3743 if test "${with_kerberos}" != no; then
3744 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3745 if test $have_com_err = yes; then
3746 COM_ERRLIB=-lcom_err
3747 LIBS="$COM_ERRLIB $LIBS"
3749 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3750 if test $have_crypto = yes; then
3752 LIBS="$CRYPTOLIB $LIBS"
3754 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3755 if test $have_k5crypto = yes; then
3756 CRYPTOLIB=-lk5crypto
3757 LIBS="$CRYPTOLIB $LIBS"
3759 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3760 if test $have_krb5=yes; then
3762 LIBS="$KRB5LIB $LIBS"
3764 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3765 if test "${with_kerberos5}" = no; then
3766 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3767 if test $have_des425 = yes; then
3769 LIBS="$DESLIB $LIBS"
3771 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3772 if test $have_des = yes; then
3774 LIBS="$DESLIB $LIBS"
3777 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3778 if test $have_krb4 = yes; then
3780 LIBS="$KRB4LIB $LIBS"
3782 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3783 if test $have_krb = yes; then
3785 LIBS="$KRB4LIB $LIBS"
3790 if test "${with_kerberos5}" != no; then
3791 AC_CHECK_HEADERS(krb5.h,
3792 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3793 [#include <krb5.h>])])
3795 AC_CHECK_HEADERS(krb.h,,
3796 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3797 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3799 AC_CHECK_HEADERS(com_err.h)
3802 AC_SUBST(COM_ERRLIB)
3808 AC_CHECK_HEADERS(valgrind/valgrind.h)
3810 AC_CHECK_FUNCS_ONCE(tzset)
3811 AC_MSG_CHECKING(whether localtime caches TZ)
3812 AC_CACHE_VAL(emacs_cv_localtime_cache,
3813 [if test x$ac_cv_func_tzset = xyes; then
3814 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3815 char TZ_GMT0[] = "TZ=GMT0";
3816 char TZ_PST8[] = "TZ=PST8";
3819 time_t now = time ((time_t *) 0);
3820 int hour_GMT0, hour_unset;
3821 if (putenv (TZ_GMT0) != 0)
3823 hour_GMT0 = localtime (&now)->tm_hour;
3825 hour_unset = localtime (&now)->tm_hour;
3826 if (putenv (TZ_PST8) != 0)
3828 if (localtime (&now)->tm_hour == hour_GMT0)
3831 if (localtime (&now)->tm_hour != hour_unset)
3834 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3835 [# If we have tzset, assume the worst when cross-compiling.
3836 emacs_cv_localtime_cache=yes])
3838 # If we lack tzset, report that localtime does not cache TZ,
3839 # since we can't invalidate the cache if we don't have tzset.
3840 emacs_cv_localtime_cache=no
3842 AC_MSG_RESULT($emacs_cv_localtime_cache)
3843 if test $emacs_cv_localtime_cache = yes; then
3844 AC_DEFINE(LOCALTIME_CACHE, 1,
3845 [Define to 1 if localtime caches TZ.])
3849 AC_CHECK_FUNC(socket, , ok_so_far=no)
3850 if test $ok_so_far = yes; then
3851 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3853 if test $ok_so_far = yes; then
3854 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3856 if test $ok_so_far = yes; then
3857 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3858 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3859 [Define to 1 if you have inet sockets.])
3862 dnl Check for a Solaris 2.4 vfork bug that Autoconf misses (through 2.69).
3863 dnl This can be removed once we assume Autoconf 2.70.
3865 *-solaris2.4 | *-solaris2.4.*)
3866 dnl Disable the Autoconf-generated vfork test.
3867 : ${ac_cv_func_vfork_works=no};;
3872 AC_CHECK_FUNCS(snprintf)
3874 dnl Check this late. It depends on what other libraries (lrsvg, Gtk+ etc)
3879 CFLAGS="$CFLAGS $GFILENOTIFY_CFLAGS"
3880 LIBS="$LIBS $GFILENOTIFY_LIBS"
3881 AC_MSG_CHECKING([whether GLib is linked in])
3882 AC_LINK_IFELSE([AC_LANG_PROGRAM(
3885 [[g_print ("Hello world");]])],
3888 AC_MSG_RESULT([$links_glib])
3889 if test "${links_glib}" = "yes"; then
3890 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
3891 if test "$HAVE_NS" = no;then
3899 dnl Adapted from Haible's version.
3900 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3901 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3902 [[char* cs = nl_langinfo(CODESET);]])],
3903 emacs_cv_langinfo_codeset=yes,
3904 emacs_cv_langinfo_codeset=no)
3906 if test $emacs_cv_langinfo_codeset = yes; then
3907 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3908 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3913 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3914 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3915 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3916 if test "$emacs_cv_c_restrict_arr" = yes; then
3917 AC_DEFINE(__restrict_arr, __restrict,
3918 [Define to compiler's equivalent of C99 restrict keyword in array
3919 declarations. Define as empty for no equivalent.])
3922 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3923 dnl how the tty code is related to POSIX and/or other versions of termios.
3924 dnl The following looks like a useful start.
3926 dnl AC_SYS_POSIX_TERMIOS
3927 dnl if test $ac_cv_sys_posix_termios = yes; then
3928 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3929 dnl and macros for terminal control.])
3930 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3933 dnl Turned on June 1996 supposing nobody will mind it.
3934 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
3935 if test "${opsys}" != "mingw32"; then
3936 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3937 in the full name stands for the login id.])
3940 dnl Every platform that uses configure supports this.
3941 dnl There is a create-lockfiles option you can
3942 dnl customize if you do not want the lock files to be written.
3943 dnl So it is not clear that this #define still needs to exist.
3944 AC_DEFINE(CLASH_DETECTION, 1, [Define if you want lock files to be written,
3945 so that Emacs can tell instantly when you try to modify a file that
3946 someone else has modified in his/her Emacs.])
3948 dnl Everybody supports this, except MS.
3949 dnl Seems like the kind of thing we should be testing for, though.
3950 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3951 if test "${opsys}" != "mingw32"; then
3952 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3955 dnl Everybody supports this, except MS-DOS.
3956 dnl Seems like the kind of thing we should be testing for, though.
3957 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3958 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3959 4.2-compatible sockets.])
3961 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3963 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
3964 a null file, or a data sink.])
3965 if test "${opsys}" = "mingw32"; then
3966 AC_DEFINE(NULL_DEVICE, ["NUL:"])
3968 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
3971 if test "${opsys}" = "mingw32"; then
3976 AC_DEFINE_UNQUOTED(SEPCHAR, ['$SEPCHAR'], [Character that separates PATH elements.])
3977 dnl This is for MinGW, and is used in test/automated/Makefile.in.
3978 dnl The MSYS Bash has heuristics for replacing ':' with ';' when it
3979 dnl decides that a command-line argument to be passed to a MinGW program
3980 dnl is a PATH-style list of directories. But that heuristics plays it
3981 dnl safe, and only does the replacement when it is _absolutely_ sure it
3982 dnl sees a colon-separated list of file names; e.g. ":." is left alone,
3983 dnl which breaks in-tree builds. So we do this manually instead.
3984 dnl Note that we cannot rely on PATH_SEPARATOR, as that one will always
3985 dnl be computed as ':' in MSYS Bash.
3988 dnl Everybody supports this, except MS-DOS.
3989 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3991 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3994 AC_DEFINE(DIRECTORY_SEP, ['/'],
3995 [Character that separates directories in a file name.])
3997 if test "${opsys}" = "mingw32"; then
3998 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
3999 [Returns true if character is a device separator.])
4001 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
4002 [Returns true if character is a directory separator.])
4004 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
4005 [Returns true if character is any form of separator.])
4007 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
4008 [Returns true if character is a device separator.])
4010 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
4011 [Returns true if character is a directory separator.])
4013 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
4014 [Returns true if character is any form of separator.])
4017 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
4021 dnl Unfortunately without libXmu we cannot support EditRes.
4022 if test x$ac_cv_lib_Xmu_XmuConvertStandardSelection != xyes; then
4023 AC_DEFINE(NO_EDITRES, 1)
4028 dnl Assar Westerlund <assar@sics.se> says this is necessary for
4029 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
4030 AC_DEFINE(NO_EDITRES, 1)
4036 irix6-5 | sol2* | unixware )
4037 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
4038 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
4039 dnl need the constant to dimension an array. So wire in the appropriate
4041 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
4045 emacs_broken_SIGIO=no
4048 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
4049 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
4050 hpux* | irix6-5 | openbsd | sol2* | unixware )
4051 emacs_broken_SIGIO=yes
4055 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
4056 dnl the way this system works, libc functions that return malloced
4057 dnl memory use the libc malloc implementation. Calling xfree or
4058 dnl xrealloc on the results of such functions results in a crash.
4060 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
4061 dnl but that does not currently work on this system.
4063 dnl It is possible to completely override the malloc implementation on
4064 dnl AIX, but that involves putting the malloc functions in a shared
4065 dnl library and setting the MALLOCTYPE environment variable to point to
4066 dnl that shared library.
4068 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
4069 dnl to avoid a crash just use the Emacs implementation for that function.
4071 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
4072 dnl of this file, so that we do not check for get_current_dir_name
4073 dnl on AIX. But that might be fragile if something else ends
4074 dnl up testing for get_current_dir_name as a dependency.
4075 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
4076 get_current_dir_name should not be used.])
4080 dnl Circumvent a bug in FreeBSD. In the following sequence of
4081 dnl writes/reads on a PTY, read(2) returns bogus data:
4083 dnl write(2) 1022 bytes
4084 dnl write(2) 954 bytes, get EAGAIN
4085 dnl read(2) 1024 bytes in process_read_output
4086 dnl read(2) 11 bytes in process_read_output
4088 dnl That is, read(2) returns more bytes than have ever been written
4089 dnl successfully. The 1033 bytes read are the 1022 bytes written
4090 dnl successfully after processing (for example with CRs added if the
4091 dnl terminal is set up that way which it is here). The same bytes will
4092 dnl be seen again in a later read(2), without the CRs.
4093 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
4094 work around an issue when reading from a PTY.])
4100 dnl FIXME Can't we test if this exists (eg /proc/$$)?
4101 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
4106 darwin | dragonfly | freebsd | netbsd | openbsd )
4107 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
4108 close a pty to make it a controlling terminal (it is already a
4109 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
4113 dnl FIXME Surely we can test for this rather than hard-code it.
4115 netbsd | openbsd) sound_device="/dev/audio" ;;
4116 *) sound_device="/dev/dsp" ;;
4120 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
4121 [Name of the default sound device.])
4124 dnl Emacs can read input using SIGIO and buffering characters itself,
4125 dnl or using CBREAK mode and making C-g cause SIGINT.
4126 dnl The choice is controlled by the variable interrupt_input.
4128 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
4130 dnl Emacs uses the presence of the USABLE_SIGIO macro
4131 dnl to indicate whether or not signal-driven I/O is possible. It uses
4132 dnl INTERRUPT_INPUT to decide whether to use it by default.
4134 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
4135 dnl CBREAK mode has two disadvantages
4136 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
4137 dnl I hear that in system V this problem does not exist.
4138 dnl 2) Control-G causes output to be discarded.
4139 dnl I do not know whether this can be fixed in system V.
4141 dnl Another method of doing input is planned but not implemented.
4142 dnl It would have Emacs fork off a separate process
4143 dnl to read the input and send it to the true Emacs process
4146 darwin | gnu-linux | gnu-kfreebsd )
4147 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
4152 dnl If the system's imake configuration file defines `NeedWidePrototypes'
4153 dnl as `NO', we must define NARROWPROTO manually. Such a define is
4154 dnl generated in the Makefile generated by `xmkmf'. If we don't define
4155 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
4156 dnl taking float or double parameters.
4158 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
4159 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
4160 file defines `NeedWidePrototypes' as `NO'.])
4165 dnl Used in process.c, this must be a loop, even if it only runs once.
4166 dnl (Except on SGI; see below. Take that, clarity and consistency!)
4167 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
4168 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
4169 dnl trying suffixes 0-16.
4170 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
4171 first PTY, if PTYs are supported.])
4172 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
4173 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
4174 end of a PTY, if non-standard.])
4175 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
4176 end of a PTY, if non-standard.])
4180 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4181 dnl You allocate a pty by opening /dev/ptc to get the master side.
4182 dnl To get the name of the slave side, you just ttyname() the master side.
4183 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4184 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4188 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4189 dnl multi-line AC_DEFINEs are hard. :(
4190 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)])
4191 AC_DEFINE(PTY_NAME_SPRINTF, [])
4192 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4195 dnl FIXME? Maybe use same as freebsd - see bug#12040.
4197 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4198 dnl Not used, because PTY_ITERATION is defined.
4199 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4200 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
4201 dnl But we don't have to block SIGCHLD because it is blocked in the
4202 dnl implementation of grantpt.
4203 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (false)])
4204 AC_DEFINE(PTY_NAME_SPRINTF, [])
4205 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4209 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4212 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd )
4214 if test "x$ac_cv_func_grantpt" = xyes; then
4215 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4216 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4217 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4218 dnl to prevent sigchld_handler from intercepting the child's death.
4219 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); }])
4220 dnl if HAVE_POSIX_OPENPT
4221 if test "x$ac_cv_func_posix_openpt" = xyes; then
4222 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (false)])
4223 AC_DEFINE(PTY_NAME_SPRINTF, [])
4225 elif test "x$ac_cv_func_getpt" = xyes; then
4226 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4227 AC_DEFINE(PTY_NAME_SPRINTF, [])
4229 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4232 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4237 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4238 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4239 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4243 dnl It looks like this cannot be right, because it is not a loop.
4244 dnl However, process.c actually does this:
4250 dnl which presumably makes it OK, since irix == sgi (?).
4251 dnl FIXME it seems like this special treatment is unnecessary?
4252 dnl Why can't irix use a single-trip loop like eg cygwin?
4253 AC_DEFINE(PTY_ITERATION, [])
4254 dnl Not used, because PTY_ITERATION is defined.
4255 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
4256 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); }])
4257 dnl No need to get the pty name at all.
4258 AC_DEFINE(PTY_NAME_SPRINTF, [])
4259 dnl No need to use sprintf to get the tty name--we get that from _getpty.
4260 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4264 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
4265 dnl from intercepting that death. If any child but grantpt's should die
4266 dnl within, it should be caught after sigrelse(2).
4267 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); }])
4271 dnl Comments are as per sol2*.
4272 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); }])
4279 dnl This change means that we don't loop through allocate_pty too
4280 dnl many times in the (rare) event of a failure.
4281 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4282 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4283 dnl Push various streams modules onto a PTY channel. Used in process.c.
4284 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.])
4289 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4290 "typing" a signal character on the pty.])
4293 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4294 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
4295 aix4-2 | cygwin | gnu | irix6-5 | dragonfly | freebsd | netbsd | openbsd | darwin )
4296 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4299 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4300 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4301 gnu-linux | gnu-kfreebsd )
4303 AC_MSG_CHECKING([for signals via characters])
4304 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4305 #include <linux/version.h>
4306 #if LINUX_VERSION_CODE < 0x20400
4307 # error "Linux version too old"
4309 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4311 AC_MSG_RESULT([$emacs_signals_via_chars])
4312 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4317 dnl Used in lisp.h, emacs.c, vm-limit.c
4318 dnl NEWS.18 describes this as "a number which contains
4319 dnl the high bits to be inclusive or'ed with pointers that are unpacked."
4320 AH_TEMPLATE(DATA_SEG_BITS, [Extra bits to be or'd in with any pointers
4321 stored in a Lisp_Object.])
4322 dnl if Emacs uses fewer than 32 bits for the value field of a LISP_OBJECT.
4326 dnl This works with 32-bit executables; Emacs doesn't support 64-bit.
4327 AC_DEFINE(DATA_SEG_BITS, [0x20000000])
4330 dnl The data segment on this machine always starts at address 0x40000000.
4331 AC_DEFINE(DATA_SEG_BITS, [0x40000000])
4334 AC_DEFINE(DATA_SEG_BITS, [0x10000000])
4339 AH_TEMPLATE(TAB3, [Undocumented.])
4342 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4344 gnu | dragonfly | freebsd | netbsd | openbsd )
4345 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4346 AC_DEFINE(TAB3, OXTABS)
4349 gnu-linux | gnu-kfreebsd )
4350 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4354 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4355 [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)],
4356 [Mark a secondary stack, like the register stack on the ia64.]), [])
4360 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4361 run_time_remap; for HPUX.])
4366 dnl This won't be used automatically yet. We also need to know, at least,
4367 dnl that the stack is continuous.
4368 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4369 registers relevant for conservative garbage collection in the jmp_buf.])
4373 dnl Not all the architectures are tested, but there are Debian packages
4374 dnl for SCM and/or Guile on them, so the technique must work. See also
4375 dnl comments in alloc.c concerning setjmp and gcc.
4376 dnl Fixme: it's probably safe to just use the GCC conditional below.
4377 gnu-linux | gnu-kfreebsd )
4378 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4379 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4380 || defined __alpha__ || defined __mips__ || defined __s390__ \
4381 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4382 || defined __ia64__ || defined __sh__
4385 # error "setjmp not known to work on this arch"
4387 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4392 if test x$GCC = xyes; then
4393 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4394 AC_DEFINE(GC_SETJMP_WORKS, 1)
4397 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
4398 aix* | dragonfly | freebsd | netbsd | openbsd | irix6-5 | sol2* )
4399 AC_DEFINE(GC_SETJMP_WORKS, 1)
4404 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4405 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4408 [[#include <setjmp.h>
4410 # define _longjmp longjmp
4415 _longjmp (j, 1);]])],
4416 [emacs_cv_func__setjmp=yes],
4417 [emacs_cv_func__setjmp=no])])
4418 if test $emacs_cv_func__setjmp = yes; then
4419 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4421 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4424 [[#include <setjmp.h>
4427 if (! sigsetjmp (j, 1))
4428 siglongjmp (j, 1);]])],
4429 [emacs_cv_func_sigsetjmp=yes],
4430 [emacs_cv_func_sigsetjmp=no])])
4431 if test $emacs_cv_func_sigsetjmp = yes; then
4432 AC_DEFINE([HAVE_SIGSETJMP], 1,
4433 [Define to 1 if sigsetjmp and siglongjmp work.
4434 The value of this symbol is irrelevant if HAVE__SETJMP is defined.])
4440 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4441 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4442 dnl and this is all we need.
4443 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4450 dnl Used in xfaces.c.
4451 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4452 some systems, where it requires time.h.])
4457 dnl Define symbols to identify the version of Unix this is.
4458 dnl Define all the symbols that apply correctly.
4459 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4460 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4461 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4462 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4467 dnl This symbol should be defined on AIX Version 3 ???????
4468 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4470 # error "_AIX not defined"
4472 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4476 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4480 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
4481 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4482 dnl distinguish OS X from pure Darwin.
4483 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4486 gnu-linux | gnu-kfreebsd )
4488 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4493 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4498 AC_DEFINE(USG5_4, [])
4499 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4503 AC_DEFINE(DOS_NT, [])
4504 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4505 if test "x$ac_enable_checking" != "x" ; then
4506 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4512 AC_DEFINE(USG5_4, [])
4513 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4518 AC_DEFINE(USG5_4, [])
4522 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4525 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4526 emacs_cv_usable_FIONREAD=no
4530 emacs_cv_usable_FIONREAD=yes
4535 [AC_LANG_PROGRAM([[#include <sys/types.h>
4536 #include <sys/ioctl.h>
4538 # include <sys/filio.h>
4541 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4542 [emacs_cv_usable_FIONREAD=yes],
4543 [emacs_cv_usable_FIONREAD=no])
4546 if test $emacs_cv_usable_FIONREAD = yes; then
4547 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4549 if test $emacs_broken_SIGIO = no; then
4550 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4552 [AC_LANG_PROGRAM([[#include <fcntl.h>
4555 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4556 [emacs_cv_usable_SIGIO=yes],
4557 [emacs_cv_usable_SIGIO=no])],
4558 [emacs_cv_usable_SIGIO=yes],
4559 [emacs_cv_usable_SIGIO=no])
4560 if test $emacs_cv_usable_SIGIO = yes; then
4561 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4568 dnl Emacs supplies its own malloc, but glib calls posix_memalign,
4569 dnl and on Cygwin prior to version 1.7.24 that becomes the
4570 dnl Cygwin-supplied posix_memalign. As malloc is not the Cygwin
4571 dnl malloc, the Cygwin posix_memalign always returns ENOSYS. A
4572 dnl workaround is to set G_SLICE=always-malloc. This is no longer
4573 dnl needed starting with cygwin-1.7.24, and it is no longer
4574 dnl effective starting with glib-2.36. */
4576 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
4577 G_SLICE environment variable to "always-malloc" at startup.])
4581 dnl It works to open the pty's tty in the parent (Emacs), then
4582 dnl close and reopen it in the child.
4583 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4584 works to open a pty's tty in the parent process, then close and
4585 reopen it in the child.])
4589 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4590 use VSUSP instead of VSWTCH.])
4594 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4599 # Set up the CFLAGS for real compilation, so we can substitute it.
4600 CFLAGS="$REAL_CFLAGS"
4601 CPPFLAGS="$REAL_CPPFLAGS"
4603 ## Hack to detect a buggy GCC version.
4604 if test "x$GCC" = xyes \
4605 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4606 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4607 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4608 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4611 version=$PACKAGE_VERSION
4613 copyright="Copyright (C) 2014 Free Software Foundation, Inc."
4614 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4615 [Short copyright string for this version of Emacs.])
4618 ### Specify what sort of things we'll be editing into Makefile and config.h.
4619 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4621 AC_SUBST(configuration)
4626 AC_SUBST(exec_prefix)
4629 AC_SUBST(sharedstatedir)
4630 AC_SUBST(libexecdir)
4634 AC_SUBST(standardlisppath)
4635 AC_SUBST(locallisppath)
4637 AC_SUBST(x_default_search_path)
4639 AC_SUBST(archlibdir)
4644 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4645 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4646 ## end of LIBX_BASE, but nothing ever set it.
4647 AC_SUBST(LD_SWITCH_X_SITE)
4648 AC_SUBST(C_SWITCH_X_SITE)
4649 AC_SUBST(GNUSTEP_CFLAGS)
4651 ## Used in lwlib/Makefile.in.
4652 AC_SUBST(X_TOOLKIT_TYPE)
4654 AC_SUBST(ns_appbindir)
4655 AC_SUBST(ns_appresdir)
4657 AC_SUBST(GNU_OBJC_CFLAGS)
4658 AC_SUBST(OTHER_FILES)
4660 if test -n "${term_header}"; then
4661 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4662 [Define to the header for the built-in window system.])
4665 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4666 [Define to the canonical Emacs configuration name.])
4667 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4668 [Define to the options passed to configure.])
4669 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4670 define this to include extra configuration information.])
4674 AC_DEFINE(config_opsysfile, <ms-w32.h>, [])
4681 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4682 AC_DEFINE(HAVE_X_WINDOWS, 1,
4683 [Define to 1 if you want to use the X window system.])
4685 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4687 if test "$HAVE_XFT" = "yes"; then
4688 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4689 elif test "$HAVE_FREETYPE" = "yes"; then
4690 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4700 if test "${USE_X_TOOLKIT}" != "none" ; then
4702 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4703 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4704 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4705 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4706 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4710 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4711 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4715 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4716 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4717 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4721 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4722 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4725 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4728 AC_SUBST(WIDGET_OBJ)
4731 case "$USE_X_TOOLKIT" in
4732 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4733 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4734 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4736 AC_SUBST(TOOLKIT_LIBW)
4738 if test "${opsys}" != "mingw32"; then
4739 if test "$USE_X_TOOLKIT" = "none"; then
4740 LIBXT_OTHER="\$(LIBXSM)"
4742 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4745 AC_SUBST(LIBXT_OTHER)
4747 if test "${HAVE_X11}" = "yes" ; then
4748 AC_DEFINE(HAVE_X11, 1,
4749 [Define to 1 if you want to use version 11 of X windows.])
4750 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4754 AC_SUBST(LIBX_OTHER)
4756 if test "$HAVE_GTK" = yes || test "$HAVE_X11" != yes; then
4758 elif test "$USE_X_TOOLKIT" = none; then
4759 LIBXMENU='$(oldXMenudir)/libXMenu11.a'
4761 LIBXMENU='$(lwlibdir)/liblw.a'
4765 if test "${GNU_MALLOC}" = "yes" ; then
4766 AC_DEFINE(GNU_MALLOC, 1,
4767 [Define to 1 if you want to use the GNU memory allocator.])
4771 if test "${REL_ALLOC}" = "yes" ; then
4772 AC_DEFINE(REL_ALLOC, 1,
4773 [Define REL_ALLOC if you want to use the relocating allocator for
4776 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4778 AC_SUBST(RALLOC_OBJ)
4780 if test "$opsys" = "cygwin"; then
4781 CYGWIN_OBJ="sheap.o cygw32.o"
4782 ## Cygwin differs because of its unexec().
4784 POST_ALLOC_OBJ=lastfile.o
4785 elif test "$opsys" = "mingw32"; then
4788 POST_ALLOC_OBJ=lastfile.o
4791 PRE_ALLOC_OBJ=lastfile.o
4794 AC_SUBST(CYGWIN_OBJ)
4795 AC_SUBST(PRE_ALLOC_OBJ)
4796 AC_SUBST(POST_ALLOC_OBJ)
4798 dnl Call this 'FORTIFY_SOUR' so that it sorts before the 'FORTIFY_SOURCE'
4799 dnl verbatim defined above. The tricky name is apropos, as this hack
4800 dnl makes Fortify go sour!
4801 AH_VERBATIM([FORTIFY_SOUR],
4802 [/* Without the following workaround, Emacs runs slowly on OS X 10.8.
4803 The workaround disables some useful run-time checking, so it
4804 should be conditional to the platforms with the performance bug.
4805 Perhaps Apple will fix this some day; also see m4/extern-inline.m4. */
4806 #if defined __APPLE__ && defined __GNUC__
4807 # ifndef _DONT_USE_CTYPE_INLINE_
4808 # define _DONT_USE_CTYPE_INLINE_
4810 # ifndef _FORTIFY_SOURCE
4811 # define _FORTIFY_SOURCE 0
4816 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4817 # it temporarily reverts them to their pre-pkg-config values,
4818 # because gnulib needs to work with both src (which uses the
4819 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4820 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4821 # and it therefore needs to run in an environment where LIBS does not
4822 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4823 # for some package unrelated to lib-src.
4826 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4827 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4828 gl_ASSERT_NO_GNULIB_POSIXCHECK
4829 gl_ASSERT_NO_GNULIB_TESTS
4834 if test "${opsys}" = "mingw32"; then
4835 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I \${abs_top_srcdir}/nt/inc"
4836 # Remove unneeded switches from the value of CC that goes to Makefiles
4837 CC=`echo $CC | sed -e "s,$GCC_TEST_OPTIONS,,"`
4841 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4844 ## The -headerpad option tells ld (see man page) to leave room at the
4845 ## end of the header for adding load commands. Needed for dumping.
4846 ## 0x690 is the total size of 30 segment load commands (at 56
4847 ## each); under Cocoa 31 commands are required.
4848 if test "$HAVE_NS" = "yes"; then
4849 libs_nsgui="-framework AppKit"
4850 if test "$NS_IMPL_COCOA" = "yes"; then
4851 libs_nsgui="$libs_nsgui -framework IOKit"
4858 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4860 ## This is here because src/Makefile.in did some extra fiddling around
4861 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
4862 ## LD_SWITCH_SYSTEM_TEMACS instead,
4863 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4864 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4867 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4868 ## find X at run-time.
4869 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4870 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4871 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4872 ## had different values in configure (in ac_link) and src/Makefile.in.
4873 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4874 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4877 ## MinGW64 does not prepend an underscore to symbols, so we must
4878 ## pass a different -entry switch to linker. FIXME: It is better
4879 ## to make the entry points the same by changing unexw32.c.
4880 case "$canonical" in
4881 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4882 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4886 openbsd) LD_SWITCH_SYSTEM_TEMACS='-nopie' ;;
4888 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4891 if test x$ac_enable_profiling != x ; then
4893 *freebsd | gnu-linux) ;;
4894 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
4898 LD_SWITCH_SYSTEM_TEMACS="$LDFLAGS_NOCOMBRELOC $LD_SWITCH_SYSTEM_TEMACS"
4900 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4902 ## MinGW-specific post-link processing of temacs.
4903 TEMACS_POST_LINK=":"
4906 if test "${opsys}" = "mingw32"; then
4907 TEMACS_POST_LINK="\$(MINGW_TEMACS_POST_LINK)"
4908 ADDSECTION="../nt/addsection\$(EXEEXT)"
4909 ## Preload heap size of temacs.exe in MB.
4910 case "$canonical" in
4911 x86_64-*-*) EMACS_HEAPSIZE=42 ;;
4912 *) EMACS_HEAPSIZE=27 ;;
4916 AC_SUBST(ADDSECTION)
4917 AC_SUBST(TEMACS_POST_LINK)
4918 AC_SUBST(EMACS_HEAPSIZE)
4920 ## Common for all window systems
4921 if test "$window_system" != "none"; then
4922 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4923 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4926 AC_SUBST(WINDOW_SYSTEM_OBJ)
4928 AH_TOP([/* GNU Emacs site configuration template file.
4930 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2014
4931 Free Software Foundation, Inc.
4933 This file is part of GNU Emacs.
4935 GNU Emacs is free software: you can redistribute it and/or modify
4936 it under the terms of the GNU General Public License as published by
4937 the Free Software Foundation, either version 3 of the License, or
4938 (at your option) any later version.
4940 GNU Emacs is distributed in the hope that it will be useful,
4941 but WITHOUT ANY WARRANTY; without even the implied warranty of
4942 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4943 GNU General Public License for more details.
4945 You should have received a copy of the GNU General Public License
4946 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4949 /* No code in Emacs #includes config.h twice, but some bits of code
4950 intended to work with other packages as well (like gmalloc.c)
4951 think they can include it as many times as they like. */
4952 #ifndef EMACS_CONFIG_H
4953 #define EMACS_CONFIG_H
4956 AH_BOTTOM([#include <conf_post.h>
4958 #endif /* EMACS_CONFIG_H */
4967 #### Report on what we decided to do.
4968 #### Report GTK as a toolkit, even if it doesn't use Xt.
4969 #### It makes printing result more understandable as using GTK sets
4970 #### toolkit_scroll_bars to yes by default.
4971 if test "${HAVE_GTK}" = "yes"; then
4972 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
4975 if test $USE_ACL -ne 0; then
4976 acl_summary="yes $LIB_ACL"
4982 Configured for \`${canonical}'.
4984 Where should the build process find the source code? ${srcdir}
4985 What compiler should emacs be built with? ${CC} ${CFLAGS}
4986 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4987 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4988 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4989 What window system should Emacs use? ${window_system}
4990 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4992 if test -n "${x_includes}"; then
4993 echo " Where do we find X Windows header files? ${x_includes}"
4995 echo " Where do we find X Windows header files? Standard dirs"
4997 if test -n "${x_libraries}"; then
4998 echo " Where do we find X Windows libraries? ${x_libraries}"
5000 echo " Where do we find X Windows libraries? Standard dirs"
5003 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
5004 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
5005 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
5006 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
5007 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
5008 echo " Does Emacs use a png library? ${HAVE_PNG} $LIBPNG"
5009 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
5010 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
5012 echo " Does Emacs support sound? ${HAVE_SOUND}"
5014 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
5015 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
5016 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
5017 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
5018 echo " Does Emacs use a file notification library? ${NOTIFY_SUMMARY}"
5019 echo " Does Emacs use access control lists? ${acl_summary}"
5020 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
5021 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
5022 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
5024 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
5025 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
5026 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
5027 echo " Does Emacs use -lxft? ${HAVE_XFT}"
5028 echo " Does Emacs directly use zlib? ${HAVE_ZLIB}"
5030 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
5033 if test -n "${EMACSDATA}"; then
5034 echo " Environment variable EMACSDATA set to: $EMACSDATA"
5036 if test -n "${EMACSDOC}"; then
5037 echo " Environment variable EMACSDOC set to: $EMACSDOC"
5042 if test "$HAVE_NS" = "yes"; then
5044 echo "You must run \"${MAKE-make} install\" in order to test the built application.
5045 The installed application will go to nextstep/Emacs.app and can be
5046 run or moved from there."
5047 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
5048 echo "The application will be fully self-contained."
5050 echo "The lisp resources for the application will be installed under ${prefix}.
5051 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
5052 to run if these resources are not installed."
5057 if test "${opsys}" = "cygwin"; then
5059 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
5065 # Remove any trailing slashes in these variables.
5066 [test "${prefix}" != NONE &&
5067 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
5068 test "${exec_prefix}" != NONE &&
5069 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
5071 if test "$HAVE_NS" = "yes"; then
5072 if test "$NS_IMPL_GNUSTEP" = yes; then
5073 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
5074 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
5075 ns_check_file=Resources/Info-gnustep.plist
5077 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
5078 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
5079 ns_check_file=Contents/Info.plist
5081 AC_SUBST(ns_check_file)
5084 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
5085 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
5086 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
5087 dnl (else you get "no `Makefile.am' found for any configure output").
5088 dnl This will work, but you get a config.status that is not quite right
5089 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
5090 dnl That doesn't have any obvious consequences for Emacs, but on the whole
5091 dnl it seems better to just live with the duplication.
5092 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile nt/Makefile"
5094 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
5095 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
5096 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
5097 leim/Makefile nextstep/Makefile nt/Makefile])
5099 dnl test/ is not present in release tarfiles.
5100 opt_makefile=test/automated/Makefile
5102 if test -f "$srcdir/$opt_makefile.in"; then
5103 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
5104 dnl Again, it's best not to use a variable. Though you can add
5105 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
5106 AC_CONFIG_FILES([test/automated/Makefile])
5110 dnl The admin/ directory used to be excluded from tarfiles.
5111 if test -d $srcdir/admin; then
5112 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES admin/unidata/Makefile admin/grammars/Makefile"
5113 AC_CONFIG_FILES([admin/unidata/Makefile])
5114 AC_CONFIG_FILES([admin/grammars/Makefile])
5118 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
5120 AC_SUBST(SUBDIR_MAKEFILES_IN)
5122 dnl You might wonder (I did) why epaths.h is generated by running make,
5123 dnl rather than just letting configure generate it from epaths.in.
5124 dnl One reason is that the various paths are not fully expanded (see above);
5125 dnl eg gamedir=${prefix}/var/games/emacs.
5126 dnl Secondly, the GNU Coding standards require that one should be able
5127 dnl to run `make prefix=/some/where/else' and override the values set
5128 dnl by configure. This also explains the `move-if-change' test and
5129 dnl the use of force in the `epaths-force' rule in Makefile.in.
5130 AC_CONFIG_COMMANDS([src/epaths.h], [
5131 if test "${opsys}" = "mingw32"; then
5132 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
5134 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
5136 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
5138 dnl NB we have to cheat and use the ac_... version because abs_top_srcdir
5139 dnl is not yet set, sigh. Or we could use ../$srcdir/src/.gdbinit,
5141 AC_CONFIG_COMMANDS([src/.gdbinit], [
5142 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
5143 echo "source $ac_abs_top_srcdir/src/.gdbinit" > src/.gdbinit