1 dnl Autoconf script for GNU Emacs
2 dnl To rebuild the `configure' script from this, execute the command
4 dnl in the directory containing this script.
5 dnl If you changed any AC_DEFINES, also run autoheader.
7 dnl Copyright (C) 1994-1996, 1999-2014 Free Software Foundation, Inc.
9 dnl This file is part of GNU Emacs.
11 dnl GNU Emacs is free software: you can redistribute it and/or modify
12 dnl it under the terms of the GNU General Public License as published by
13 dnl the Free Software Foundation, either version 3 of the License, or
14 dnl (at your option) any later version.
16 dnl GNU Emacs is distributed in the hope that it will be useful,
17 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
18 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 dnl GNU General Public License for more details.
21 dnl You should have received a copy of the GNU General Public License
22 dnl along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
25 dnl Note this is parsed by (at least) make-dist and lisp/cedet/ede/emacs.el.
26 AC_INIT(GNU Emacs, 24.4.50, bug-gnu-emacs@gnu.org)
28 dnl We get MINGW64 with MSYS2
29 if test "x$MSYSTEM" = "xMINGW32" -o "x$MSYSTEM" = "xMINGW64"
31 . $srcdir/nt/mingw-cfg.site
35 # srcdir is an absolute path. In this case, force the format
36 # "/c/foo/bar", to simplify later conversions to native Windows
37 # format ("c:/foo/bar")
38 srcdir=`cd "${srcdir}" && pwd -W`
39 srcdir="/${srcdir:0:1}${srcdir:2}"
44 dnl Set emacs_config_options to the options of 'configure', quoted for the shell,
45 dnl and then quoted again for a C string. Separate options with spaces.
46 dnl Add some environment variables, if they were passed via the environment
47 dnl rather than on the command-line.
50 dnl This is the documented way to record the args passed to configure,
51 dnl rather than $ac_configure_args.
52 for opt in ${1+"$@"} CFLAGS CPPFLAGS LDFLAGS; do
54 -n | --no-create | --no-recursion)
56 CFLAGS | CPPFLAGS | LDFLAGS)
57 eval 'test "${'$opt'+set}" = set' || continue
59 *" $opt="*) continue ;;
61 eval opt=$opt=\$$opt ;;
64 emacs_shell_specials=$IFS\''"#$&()*;<>?@<:@\\`{|~'
66 *[["$emacs_shell_specials"]]*)
69 emacs_quote_apostrophes="s/'/'\\\\''/g"
70 opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_apostrophes"` ;;
75 emacs_quote_for_c='s/[["\\]]/\\&/g; $!s/$/\\n\\/'
76 opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_for_c"` ;;
79 AS_VAR_APPEND([emacs_config_options], ["$optsep$opt"])
83 AC_CONFIG_HEADERS(src/config.h:src/config.in)
84 AC_CONFIG_SRCDIR(src/lisp.h)
85 AC_CONFIG_AUX_DIR(build-aux)
86 dnl automake 1.13 and later understand this, making -I m4 unnecessary.
87 dnl With older versions this is a no-op.
88 AC_CONFIG_MACRO_DIR(m4)
91 AC_CHECK_PROGS(XCRUN, [xcrun])
92 if test -n "$XCRUN"; then
93 if test -z "$MAKE"; then
94 dnl Call the variable MAKE_PROG, not MAKE, to avoid confusion with
95 dnl SET_MAKE and with the usual MAKE variable that 'make' itself uses.
96 AC_CHECK_PROG([MAKE_PROG], [make], [yes])
97 if test -z "$MAKE_PROG"; then
100 xcsdkdir=`$XCRUN --show-sdk-path 2>/dev/null`
105 dnl Fairly arbitrary, older versions might work too.
106 AM_INIT_AUTOMAKE(1.11)
108 dnl Support for --program-prefix, --program-suffix and
109 dnl --program-transform-name options
112 dnl It is important that variables on the RHS not be expanded here,
113 dnl hence the single quotes. This is per the GNU coding standards, see
114 dnl (autoconf) Installation Directory Variables
115 dnl See also epaths.h below.
116 lispdir='${datadir}/emacs/${version}/lisp'
117 standardlisppath='${lispdir}'
118 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
119 '${datadir}/emacs/site-lisp'
120 lisppath='${locallisppath}:${standardlisppath}'
121 etcdir='${datadir}/emacs/${version}/etc'
122 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
123 etcdocdir='${datadir}/emacs/${version}/etc'
124 gamedir='${localstatedir}/games/emacs'
126 dnl Special option to disable the most of other options.
128 [AS_HELP_STRING([--without-all],
129 [omit almost all features and build
130 small executable with minimal dependencies])],
131 [with_features=$withval],
134 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
135 dnl Create a new --with option that defaults to being disabled.
136 dnl NAME is the base name of the option. The shell variable with_NAME
137 dnl will be set to either the user's value (if the option is
138 dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
139 dnl option is not specified). Note that the shell variable name is
140 dnl constructed as autoconf does, by replacing non-alphanumeric
141 dnl characters with "_".
142 dnl HELP-STRING is the help text for the option.
143 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
144 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
145 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
148 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
149 dnl Create a new --with option that defaults to $with_features.
150 dnl NAME is the base name of the option. The shell variable with_NAME
151 dnl will be set either to 'no' (for a plain --without-NAME) or to
152 dnl 'yes' (if the option is not specified). Note that the shell
153 dnl variable name is constructed as autoconf does, by replacing
154 dnl non-alphanumeric characters with "_".
155 dnl HELP-STRING is the help text for the option.
156 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
157 AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
158 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=$with_features])dnl
161 OPTION_DEFAULT_ON([pop],[don't support POP mail retrieval with movemail])
162 if test "$with_pop" = yes; then
163 AC_DEFINE(MAIL_USE_POP)
165 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
167 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
168 if test "$with_kerberos" != no; then
171 AH_TEMPLATE(KERBEROS,
172 [Define to support Kerberos-authenticated POP mail retrieval.])dnl
174 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
175 if test "${with_kerberos5}" != no; then
176 if test "${with_kerberos}" = no; then
180 AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
183 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
184 dnl FIXME hesiod support may not be present, so it seems like an error
185 dnl to define, or at least use, this unconditionally.
186 if test "$with_hesiod" != no; then
187 AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
190 OPTION_DEFAULT_OFF([mmdf],[support MMDF mailboxes])
191 if test "$with_mmdf" != no; then
192 AC_DEFINE(MAIL_USE_MMDF, 1, [Define to support MMDF mailboxes in movemail.])
195 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
196 if test "$with_mail_unlink" != no; then
197 AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
200 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
201 [string giving default POP mail host])],
202 AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
204 AC_ARG_WITH([sound],[AS_HELP_STRING([--with-sound=VALUE],
205 [compile with sound support (VALUE one of: yes, alsa, oss, bsd-ossaudio, no;
206 default yes). Only for GNU/Linux, FreeBSD, NetBSD, MinGW.])],
207 [ case "${withval}" in
208 yes|no|alsa|oss|bsd-ossaudio) val=$withval ;;
209 *) AC_MSG_ERROR([`--with-sound=$withval' is invalid;
210 this option's value should be `yes', `no', `alsa', `oss', or `bsd-ossaudio'.])
215 [with_sound=$with_features])
217 dnl FIXME currently it is not the last.
218 dnl This should be the last --with option, because --with-x is
219 dnl added later on when we find the file name of X, and it's best to
220 dnl keep them together visually.
221 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
222 [use an X toolkit (KIT one of: yes or gtk, gtk2, gtk3, lucid or athena, motif, no)])],
223 [ case "${withval}" in
224 y | ye | yes ) val=gtk ;;
226 l | lu | luc | luci | lucid ) val=lucid ;;
227 a | at | ath | athe | athen | athena ) val=athena ;;
228 m | mo | mot | moti | motif ) val=motif ;;
229 g | gt | gtk ) val=gtk ;;
233 AC_MSG_ERROR([`--with-x-toolkit=$withval' is invalid;
234 this option's value should be `yes', `no', `lucid', `athena', `motif', `gtk',
235 `gtk2' or `gtk3'. `yes' and `gtk' are synonyms.
236 `athena' and `lucid' are synonyms.])
242 OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit)])
243 if test "$with_wide_int" = yes; then
244 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
247 dnl _ON results in a '--without' option in the --help output, so
248 dnl the help text should refer to "don't compile", etc.
249 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
250 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
251 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
252 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
253 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
254 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
255 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
256 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
258 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
259 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
260 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
262 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
263 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
264 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
265 OPTION_DEFAULT_OFF([ns],[use NeXTstep (Cocoa or GNUstep) windowing system])
266 OPTION_DEFAULT_OFF([w32], [use native MS Windows GUI in a Cygwin build])
268 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
269 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
270 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
271 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
272 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
273 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
274 OPTION_DEFAULT_ON([zlib],[don't compile with zlib decompression support])
276 AC_ARG_WITH([file-notification],[AS_HELP_STRING([--with-file-notification=LIB],
277 [use a file notification library (LIB one of: yes, gfile, inotify, w32, no)])],
278 [ case "${withval}" in
279 y | ye | yes ) val=yes ;;
281 g | gf | gfi | gfil | gfile ) val=gfile ;;
282 i | in | ino | inot | inoti | inotif | inotify ) val=inotify ;;
283 w | w3 | w32 ) val=w32 ;;
284 * ) AC_MSG_ERROR([`--with-file-notification=$withval' is invalid;
285 this option's value should be `yes', `no', `gfile', `inotify' or `w32'.
286 `yes' is a synonym for `w32' on MS-Windows, for `no' on Nextstep,
287 otherwise for the first of `gfile' or `inotify' that is usable.])
290 with_file_notification=$val
292 [with_file_notification=$with_features])
294 ## For the times when you want to build Emacs but don't have
295 ## a suitable makeinfo, and can live without the manuals.
296 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
297 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
299 ## This might be a 'configure' arg, e.g., autogen.sh might set it.
300 AC_SUBST([ACLOCAL_PATH])
302 ## Makefile.in needs the cache file name.
305 ## This is an option because I do not know if all info/man support
306 ## compressed files, nor how to test if they do so.
307 OPTION_DEFAULT_ON([compress-install],
308 [don't compress some files (.el, .info, etc.) when installing. Equivalent to:
309 make GZIP_PROG= install])
311 AC_ARG_WITH(gameuser,dnl
312 [AS_HELP_STRING([--with-gameuser=USER],[user for shared game score files])])
313 test "X${with_gameuser}" != X && test "${with_gameuser}" != yes \
314 && gameuser="${with_gameuser}"
315 test "X$gameuser" = X && gameuser=games
317 AC_ARG_WITH([gnustep-conf],dnl
318 [AS_HELP_STRING([--with-gnustep-conf=FILENAME],
319 [name of GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
320 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
321 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
322 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
323 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
325 AC_ARG_ENABLE(ns-self-contained,
326 [AS_HELP_STRING([--disable-ns-self-contained],
327 [disable self contained build under NeXTstep])],
328 EN_NS_SELF_CONTAINED=$enableval,
329 EN_NS_SELF_CONTAINED=yes)
331 AC_ARG_ENABLE(locallisppath,
332 [AS_HELP_STRING([--enable-locallisppath=PATH],
333 [directories Emacs should search for lisp files specific
335 if test "${enableval}" = "no"; then
337 elif test "${enableval}" != "yes"; then
338 locallisppath=${enableval}
341 AC_ARG_ENABLE(checking,
342 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
343 [enable expensive run-time checks. With LIST,
344 enable only specific categories of checks.
345 Categories are: all,yes,no.
346 Flags are: stringbytes, stringoverrun, stringfreelist,
347 xmallocoverrun, conslist, glyphs])],
348 [ac_checking_flags="${enableval}"],[])
349 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
350 for check in $ac_checking_flags
353 # these set all the flags to specific states
354 yes) ac_enable_checking=1 ;;
355 no) ac_enable_checking= ;
356 ac_gc_check_stringbytes= ;
357 ac_gc_check_string_overrun= ;
358 ac_gc_check_string_free_list= ;
359 ac_xmalloc_overrun= ;
360 ac_gc_check_cons_list= ;
362 all) ac_enable_checking=1 ;
363 ac_gc_check_stringbytes=1 ;
364 ac_gc_check_string_overrun=1 ;
365 ac_gc_check_string_free_list=1 ;
366 ac_xmalloc_overrun=1 ;
367 ac_gc_check_cons_list=1 ;
369 # these enable particular checks
370 stringbytes) ac_gc_check_stringbytes=1 ;;
371 stringoverrun) ac_gc_check_string_overrun=1 ;;
372 stringfreelist) ac_gc_check_string_free_list=1 ;;
373 xmallocoverrun) ac_xmalloc_overrun=1 ;;
374 conslist) ac_gc_check_cons_list=1 ;;
375 glyphs) ac_glyphs_debug=1 ;;
376 *) AC_MSG_ERROR(unknown check category $check) ;;
381 if test x$ac_enable_checking != x ; then
382 AC_DEFINE(ENABLE_CHECKING, 1,
383 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
385 if test x$ac_gc_check_stringbytes != x ; then
386 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
387 [Define this temporarily to hunt a bug. If defined, the size of
388 strings is redundantly recorded in sdata structures so that it can
389 be compared to the sizes recorded in Lisp strings.])
391 if test x$ac_gc_check_string_overrun != x ; then
392 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
393 [Define this to check for short string overrun.])
395 if test x$ac_gc_check_string_free_list != x ; then
396 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
397 [Define this to check the string free list.])
399 if test x$ac_xmalloc_overrun != x ; then
400 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
401 [Define this to check for malloc buffer overrun.])
403 if test x$ac_gc_check_cons_list != x ; then
404 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
405 [Define this to check for errors in cons list.])
407 if test x$ac_glyphs_debug != x ; then
408 AC_DEFINE(GLYPH_DEBUG, 1,
409 [Define this to enable glyphs debugging code.])
412 AC_ARG_ENABLE(check-lisp-object-type,
413 [AS_HELP_STRING([--enable-check-lisp-object-type],
414 [enable compile time checks for the Lisp_Object data type.
415 This is useful for development for catching certain types of bugs.])],
416 if test "${enableval}" != "no"; then
417 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
418 [Define this to enable compile time checks for the Lisp_Object data type.])
422 dnl The name of this option is unfortunate. It predates, and has no
423 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
424 dnl Actually, it stops it working.
425 dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
426 AC_ARG_ENABLE(profiling,
427 [AS_HELP_STRING([--enable-profiling],
428 [build emacs with low-level, gprof profiling support.
429 Mainly useful for debugging Emacs itself. May not work on
430 all platforms. Stops profiler.el working.])],
431 [ac_enable_profiling="${enableval}"],[])
432 if test x$ac_enable_profiling != x ; then
433 PROFILING_CFLAGS="-DPROFILING=1 -pg"
437 AC_SUBST(PROFILING_CFLAGS)
439 AC_ARG_ENABLE(autodepend,
440 [AS_HELP_STRING([--enable-autodepend],
441 [automatically generate dependencies to .h-files.
442 Requires gcc, enabled if found.])],
443 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
445 AC_ARG_ENABLE(gtk-deprecation-warnings,
446 [AS_HELP_STRING([--enable-gtk-deprecation-warnings],
447 [Show Gtk+/Gdk deprecation warnings for Gtk+ >= 3.0])],
448 [ac_enable_gtk_deprecation_warnings="${enableval}"],[])
450 ### Canonicalize the configuration name.
454 configuration=${host_alias-${build_alias-$host}}
456 dnl This used to use changequote, but, apart from `changequote is evil'
457 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
458 dnl the great gob of text. Thus it's not processed for possible expansion.
459 dnl Just make sure the brackets remain balanced.
461 dnl Since Emacs can't find matching pairs of quotes, boundaries are
462 dnl indicated by comments.
466 ### If you add support for a new configuration, add code to this
467 ### switch statement to recognize your configuration name and select
468 ### the appropriate opsys.
470 ### As far as handling version numbers on operating systems is
471 ### concerned, make sure things will fail in a fixable way. If
472 ### /etc/MACHINES doesn't say anything about version numbers, be
473 ### prepared to handle anything reasonably. If version numbers
474 ### matter, be sure /etc/MACHINES says something about it.
477 case "${canonical}" in
479 ## GNU/Linux and similar ports
494 ## FreeBSD kernel + glibc based userland
505 *-*-openbsd* | *-*-mirbsd* )
509 ## Apple Darwin / Mac OS X
511 case "${canonical}" in
518 ## Use fink packages if available.
519 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
520 ## if test -d /sw/include && test -d /sw/lib; then
521 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
522 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
531 ## HP 9000 series 700 and 800, running HP/UX
535 hppa*-hp-hpux1[1-9]* )
537 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
541 rs6000-ibm-aix4.[23]* )
544 powerpc-ibm-aix4.[23]* )
547 rs6000-ibm-aix[56]* )
550 powerpc-ibm-aix[56]* )
554 ## Silicon Graphics machines
558 # Without defining _LANGUAGE_C, things get masked out in the headers
559 # so that, for instance, grepping for `free' in stdlib.h fails and
560 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
561 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
566 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
567 | x86_64-*-solaris2* | x86_64-*-sunos5*)
568 case "${canonical}" in
570 amd64-*-*|x86_64-*-*) ;;
574 case "${canonical}" in
575 *-sunos5.[1-9][0-9]* | *-solaris2.[1-9][0-9]* )
577 emacs_check_sunpro_c=yes
579 *-sunos5.6* | *-solaris2.6* )
583 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
585 emacs_check_sunpro_c=yes
588 ## Watch out for a compiler that we know will not work.
589 case "${canonical}" in
590 *-solaris* | *-sunos5* )
591 if [ "x$CC" = x/usr/ucb/cc ]; then
592 ## /usr/ucb/cc doesn't work;
593 ## we should find some other compiler that does work.
601 ## Intel 386 machines where we don't care about the manufacturer.
603 case "${canonical}" in
604 *-darwin* ) opsys=darwin ;;
607 # MinGW overrides and adds some system headers in nt/inc.
608 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
610 *-sysv4.2uw* ) opsys=unixware ;;
611 *-sysv5uw* ) opsys=unixware ;;
612 *-sysv5OpenUNIX* ) opsys=unixware ;;
613 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
619 case "${canonical}" in
622 # MinGW overrides and adds some system headers in nt/inc.
623 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
625 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
634 ### If the code above didn't choose an operating system, just choose
635 ### an operating system based on the configuration name. You really
636 ### only want to use this when you have no idea what the right
637 ### operating system is; if you know what operating systems a machine
638 ### runs, it's cleaner to make it explicit in the case statement
640 if test x"${opsys}" = x; then
641 case "${canonical}" in
642 *-gnu* ) opsys=gnu ;;
652 if test $unported = yes; then
653 AC_MSG_ERROR([Emacs does not support `${canonical}' systems.
654 If you think it should, please send a report to ${PACKAGE_BUGREPORT}.
655 Check `etc/MACHINES' for recognized configuration names.])
659 AC_MSG_CHECKING([whether we are using GNU Make])
660 testval=`${MAKE-make} --version 2>/dev/null | grep 'GNU Make'`
661 if test "x$testval" != x; then
665 AC_MSG_ERROR([Building Emacs requires GNU make.
666 If you have it installed under another name, configure with 'MAKE=...'.
667 For example, run './configure MAKE=gmake'.])
671 #### Choose a compiler.
673 dnl Sets GCC=yes if using gcc.
674 AC_PROG_CC([gcc cc cl clang "$XCRUN gcc" "$XCRUN clang"])
675 if test -n "$XCRUN"; then
676 AC_CHECK_PROGS(AR, [ar "$XCRUN ar"])
677 test -n "$AR" && export AR
682 if test x$GCC = xyes; then
683 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
685 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
688 dnl This is used in lib/Makefile.am to use nt/gnulib.mk, the
689 dnl alternative to lib/gnulib.mk, so as to avoid generating header files
690 dnl that clash with MinGW.
691 AM_CONDITIONAL([BUILDING_FOR_WINDOWSNT], [test "x$opsys" = "xmingw32"])
693 # Avoid gnulib's tests for -lcrypto, so that there's no static dependency on it.
694 AC_DEFUN([gl_CRYPTO_CHECK])
695 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
696 # as we don't use them.
697 AC_DEFUN([gl_FCNTL_O_FLAGS])
698 # Avoid gnulib's threadlib module, as we do threads our own way.
699 AC_DEFUN([gl_THREADLIB])
701 # Initialize gnulib right after choosing the compiler.
702 dnl Amongst other things, this sets AR and ARFLAGS.
705 if test "$ac_test_CFLAGS" != set; then
706 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
707 # if -g3 works and the user does not specify CFLAGS.
708 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
711 emacs_g3_CFLAGS='-g3';;
713 emacs_g3_CFLAGS='-g3 -O2';;
717 if test -n "$emacs_g3_CFLAGS"; then
718 emacs_save_CFLAGS=$CFLAGS
719 CFLAGS=$emacs_g3_CFLAGS
720 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
721 [emacs_cv_prog_cc_g3],
722 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
723 [emacs_cv_prog_cc_g3=yes],
724 [emacs_cv_prog_cc_g3=no])])
725 if test $emacs_cv_prog_cc_g3 != yes; then
726 CFLAGS=$emacs_save_CFLAGS
728 if test $opsys = mingw32; then
729 CFLAGS="$CFLAGS -gdwarf-2"
736 # No optimization flag was inferred for this non-GCC compiler.
737 # Try -O. This is needed for xlc on AIX; see Bug#14258.
738 emacs_save_CFLAGS=$CFLAGS
739 test -z "$CFLAGS" || CFLAGS="$CFLAGS "
741 AC_CACHE_CHECK([whether $CC accepts -O],
742 [emacs_cv_prog_cc_o],
743 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
744 [emacs_cv_prog_cc_o=yes],
745 [emacs_cv_prog_cc_o=no])])
746 if test $emacs_cv_prog_cc_o != yes; then
747 CFLAGS=$emacs_save_CFLAGS
752 AC_ARG_ENABLE([gcc-warnings],
753 [AS_HELP_STRING([--enable-gcc-warnings],
754 [turn on lots of GCC warnings/errors. This is intended for
755 developers, and may generate false alarms when used
756 with older or non-GNU development tools.])],
759 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
761 gl_gcc_warnings=$enableval],
765 AC_ARG_ENABLE(link-time-optimization,
766 [AS_HELP_STRING([--enable-link-time-optimization],
767 [build emacs with link-time optimization.
768 This is supported only for GCC since 4.5.0.])],
769 if test "${enableval}" != "no"; then
770 AC_MSG_CHECKING([whether link-time optimization is supported])
772 if test x$GCC = xyes; then
773 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
774 if test x$CPUS != x; then
780 CFLAGS="$CFLAGS $LTO"
781 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
782 [ac_lto_supported=yes], [ac_lto_supported=no])
785 AC_MSG_RESULT([$ac_lto_supported])
786 if test "$ac_lto_supported" = "yes"; then
787 CFLAGS="$CFLAGS $LTO"
791 # clang is unduly picky about some things.
792 AC_CACHE_CHECK([whether the compiler is clang], [emacs_cv_clang],
799 [emacs_cv_clang=yes],
800 [emacs_cv_clang=no])])
802 # When compiling with GCC, prefer -isystem to -I when including system
803 # include files, to avoid generating useless diagnostics for the files.
804 if test "$gl_gcc_warnings" != yes; then
806 if test "$emacs_cv_clang" = yes
808 # Turn off some warnings if supported.
809 gl_WARN_ADD([-Wno-switch])
810 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
811 gl_WARN_ADD([-Wno-pointer-sign])
816 # This, $nw, is the list of warnings we disable.
819 case $with_x_toolkit in
820 lucid | athena | motif)
821 # Old toolkits mishandle 'const'.
822 nw="$nw -Wwrite-strings"
825 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
828 AC_SUBST([WERROR_CFLAGS])
830 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
831 nw="$nw -Woverlength-strings" # Not a problem these days
832 nw="$nw -Wlogical-op" # any use of fwrite provokes this
833 nw="$nw -Wformat-nonliteral" # we do this a lot
834 nw="$nw -Wvla" # warnings in gettext.h
835 nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
836 nw="$nw -Wswitch-default" # Too many warnings for now
837 nw="$nw -Winline" # OK to ignore 'inline'
838 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
839 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
840 # signed overflow has undefined behavior
841 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
842 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
843 nw="$nw -Wbad-function-cast" # These casts are no worse than others.
845 # Emacs doesn't care about shadowing; see
846 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
849 # Emacs's use of alloca inhibits protecting the stack.
850 nw="$nw -Wstack-protector"
852 # The following line should be removable at some point.
853 nw="$nw -Wsuggest-attribute=pure"
855 # This part is merely for shortening the command line,
856 # since -Wno-FOO needs to be added below regardless.
857 nw="$nw -Wmissing-field-initializers"
859 nw="$nw -Wtype-limits"
860 nw="$nw -Wunused-parameter"
862 if test $emacs_cv_clang = yes; then
863 nw="$nw -Wcast-align"
866 gl_MANYWARN_ALL_GCC([ws])
867 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
871 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
872 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
873 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
874 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
875 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
876 gl_WARN_ADD([-Wno-format-nonliteral])
878 # In spite of excluding -Wlogical-op above, it is enabled, as of
879 # gcc 4.5.0 20090517.
880 gl_WARN_ADD([-Wno-logical-op])
882 # More things that clang is unduly picky about.
883 if test $emacs_cv_clang = yes; then
884 gl_WARN_ADD([-Wno-format-extra-args])
885 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
886 gl_WARN_ADD([-Wno-unused-command-line-argument])
887 gl_WARN_ADD([-Wno-unused-value])
890 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
891 AH_VERBATIM([FORTIFY_SOURCE],
892 [/* Enable compile-time and run-time bounds-checking, and some warnings,
893 without upsetting glibc 2.15+. */
894 #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
895 # define _FORTIFY_SOURCE 2
898 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
900 # We use a slightly smaller set of warning options for lib/.
901 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
903 nw="$nw -Wunused-macros"
905 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
906 AC_SUBST([GNULIB_WARN_CFLAGS])
918 dnl Some other nice autoconf tests.
919 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
922 dnl if test "x$RANLIB" = x; then
927 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
928 dnl can be made to directories. This is not relevant for our usage, and
929 dnl excludes some cases that work fine for us. Eg MS Windows or files
930 dnl hosted on AFS, both examples where simple links work, but links to
931 dnl directories fail. We use a cut-down version instead.
934 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
935 rm -f conf$$ conf$$.file
937 LN_S_FILEONLY='cp -p'
939 dnl On MinGW, ensure we will call the MSYS /bin/ln.exe, not some
940 dnl random program in the current directory.
941 if (echo >conf$$.file) 2>/dev/null; then
942 if ln -s conf$$.file conf$$ 2>/dev/null; then
943 if test "$opsys" = "mingw32"; then
944 LN_S_FILEONLY='/bin/ln -s'
946 LN_S_FILEONLY='ln -s'
948 elif ln conf$$.file conf$$ 2>/dev/null; then
949 if test "$opsys" = "mingw32"; then
950 LN_S_FILEONLY=/bin/ln
957 rm -f conf$$ conf$$.file
959 if test "$LN_S_FILEONLY" = "ln -s"; then
962 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
965 AC_SUBST(LN_S_FILEONLY)
968 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
969 dnl doesn't support links to directories, as in "ln file dir". But that
970 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
971 dnl executables at "make install" time.
972 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
973 dnl for more details.
974 if test "$opsys" = "mingw32"; then
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])
1293 # sqrt and other floating-point functions such as fmod and frexp
1294 # are found in -lm on many systems.
1296 AC_SEARCH_LIBS([sqrt], [m])
1297 if test "X$LIBS" = "X$OLD_LIBS"; then
1300 LIB_MATH=$ac_cv_search_sqrt
1304 dnl Current possibilities handled by sed (aix4-2 -> aix,
1305 dnl gnu-linux -> gnu/linux, etc.):
1306 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1307 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1308 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1315 ## Adding -lm confuses the dynamic linker, so omit it.
1318 freebsd | dragonfly )
1319 SYSTEM_TYPE=berkeley-unix
1321 gnu-linux | gnu-kfreebsd )
1323 hpux10-20 | hpux11 )
1327 SYSTEM_TYPE=windows-nt
1329 dnl NB this may be adjusted below.
1331 SYSTEM_TYPE=berkeley-unix
1335 SYSTEM_TYPE=usg-unix-v
1341 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1342 [The type of system you are compiling for; sets `system-type'.])
1344 m4_pattern_forbid([^PKG_])
1346 AC_ARG_VAR(PKG_CONFIG_PATH, [Colon-separated list of directories
1347 searched by pkg-config])
1349 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1350 pre_PKG_CONFIG_LIBS=$LIBS
1352 PKG_PROG_PKG_CONFIG(0.9.0)
1354 dnl EMACS_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4)
1355 dnl acts like PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4,
1356 dnl HAVE_GSTUFF=yes, HAVE_GSTUFF=no) -- see pkg-config man page --
1357 dnl except that it postprocesses CFLAGS as needed for --enable-gcc-warnings.
1358 dnl EMACS_CHECK_MODULES accepts optional 3rd and 4th arguments that
1359 dnl can take the place of the default HAVE_GSTUFF=yes and HAVE_GSTUFF=no
1361 AC_DEFUN([EMACS_CHECK_MODULES],
1362 [PKG_CHECK_MODULES([$1], [$2],
1363 [$1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1364 m4_default([$3], [HAVE_$1=yes])],
1365 [m4_default([$4], [HAVE_$1=no])])])
1368 if test "${with_sound}" != "no"; then
1369 # Sound support for GNU/Linux, the free BSDs, and MinGW.
1370 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h],
1371 have_sound_header=yes, [], [
1373 #define WIN32_LEAN_AND_MEAN
1374 #include <windows.h>
1377 test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
1378 AC_MSG_ERROR([OSS sound support requested but not found.])
1380 if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
1381 # Emulation library used on NetBSD.
1382 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1383 test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
1384 AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
1385 dnl FIXME? If we did find ossaudio, should we set with_sound=bsd-ossaudio?
1386 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1390 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1392 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1393 EMACS_CHECK_MODULES([ALSA], [$ALSA_MODULES])
1394 if test $HAVE_ALSA = yes; then
1395 SAVE_CFLAGS="$CFLAGS"
1397 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1398 LIBS="$ALSA_LIBS $LIBS"
1399 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1400 emacs_alsa_normal=yes,
1401 emacs_alsa_normal=no)
1402 if test "$emacs_alsa_normal" != yes; then
1403 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1404 [[snd_lib_error_set_handler (0);]])],
1405 emacs_alsa_subdir=yes,
1406 emacs_alsa_subdir=no)
1407 if test "$emacs_alsa_subdir" != yes; then
1408 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1410 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1413 CFLAGS="$SAVE_CFLAGS"
1415 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1416 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1417 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1418 elif test "${with_sound}" = "alsa"; then
1419 AC_MSG_ERROR([ALSA sound support requested but not found.])
1421 fi dnl with_sound = alsa|yes
1423 dnl Define HAVE_SOUND if we have sound support. We know it works and
1424 dnl compiles only on the specified platforms. For others, it
1425 dnl probably doesn't make sense to try.
1426 dnl FIXME So surely we should bypass this whole section if not using
1427 dnl one of these platforms?
1428 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1430 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1431 dnl Adjust the --with-sound help text if you change this.
1432 gnu-linux|freebsd|netbsd|mingw32)
1433 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1439 AC_SUBST(CFLAGS_SOUND)
1442 dnl checks for header files
1443 AC_CHECK_HEADERS_ONCE(
1447 sys/utsname.h pwd.h utmp.h util.h)
1449 AC_MSG_CHECKING(if personality LINUX32 can be set)
1450 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1451 emacs_cv_personality_linux32=yes,
1452 emacs_cv_personality_linux32=no)
1453 AC_MSG_RESULT($emacs_cv_personality_linux32)
1455 if test $emacs_cv_personality_linux32 = yes; then
1456 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1457 [Define to 1 if personality LINUX32 can be set.])
1460 dnl On Solaris 8 there's a compilation warning for term.h because
1461 dnl it doesn't define `bool'.
1462 AC_CHECK_HEADERS(term.h, , , -)
1464 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1466 if test $ac_cv_have_decl_sys_siglist != yes; then
1467 # For Tru64, at least:
1468 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1473 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1474 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1475 #if HAVE_SYS_SOCKET_H
1476 #include <sys/socket.h>
1478 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1479 #if HAVE_SYS_SOCKET_H
1480 #include <sys/socket.h>
1482 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1483 #if HAVE_SYS_SOCKET_H
1484 #include <sys/socket.h>
1487 dnl checks for structure members
1488 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1489 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1490 struct ifreq.ifr_addr,
1491 struct ifreq.ifr_addr.sa_len], , ,
1492 [AC_INCLUDES_DEFAULT
1493 #if HAVE_SYS_SOCKET_H
1494 #include <sys/socket.h>
1500 dnl Check for endianness.
1501 dnl AC_C_BIGENDIAN is done by gnulib.
1503 dnl check for Make feature
1504 dnl AC_PROG_MAKE_SET is done by Automake.
1509 dnl check if we have GCC and autodepend is on.
1510 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1511 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1512 SAVE_CFLAGS="$CFLAGS"
1513 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1514 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1515 CFLAGS="$SAVE_CFLAGS"
1516 test -f deps.d || ac_enable_autodepend=no
1518 AC_MSG_RESULT([$ac_enable_autodepend])
1519 if test $ac_enable_autodepend = yes; then
1520 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1521 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1522 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1523 deps_frag=autodeps.mk
1526 deps_frag=$srcdir/src/$deps_frag
1529 AC_SUBST_FILE(deps_frag)
1532 lisp_frag=$srcdir/src/lisp.mk
1533 AC_SUBST_FILE(lisp_frag)
1536 dnl checks for operating system services
1537 AC_SYS_LONG_FILE_NAMES
1539 #### Choose a window system.
1541 ## We leave window_system equal to none if
1542 ## we end up building without one. Any new window system should
1543 ## set window_system to an appropriate value and add objects to
1544 ## window-system-specific substs.
1548 if test "$no_x" != yes; then
1552 LD_SWITCH_X_SITE_RPATH=
1553 if test "${x_libraries}" != NONE; then
1554 if test -n "${x_libraries}"; then
1555 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1556 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1558 x_default_search_path=""
1559 x_search_path=${x_libraries}
1560 if test -z "${x_search_path}"; then
1561 x_search_path=/usr/lib
1563 for x_library in `echo ${x_search_path}: | \
1564 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1566 ${x_library}/X11/%L/%T/%N%C%S:\
1567 ${x_library}/X11/%l/%T/%N%C%S:\
1568 ${x_library}/X11/%T/%N%C%S:\
1569 ${x_library}/X11/%L/%T/%N%S:\
1570 ${x_library}/X11/%l/%T/%N%S:\
1571 ${x_library}/X11/%T/%N%S"
1572 if test x"${x_default_search_path}" = x; then
1573 x_default_search_path=${x_search_path}
1575 x_default_search_path="${x_search_path}:${x_default_search_path}"
1579 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1581 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1582 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1585 if test x"${x_includes}" = x; then
1586 bitmapdir=/usr/include/X11/bitmaps
1588 # accumulate include directories that have X11 bitmap subdirectories
1590 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1591 if test -d "${bmd}/X11/bitmaps"; then
1592 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1594 if test -d "${bmd}/bitmaps"; then
1595 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1598 if test ${bmd_acc} != "dummyval"; then
1599 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1606 tmp_CPPFLAGS="$CPPFLAGS"
1607 tmp_CFLAGS="$CFLAGS"
1608 CPPFLAGS="$CPPFLAGS -x objective-c"
1609 CFLAGS="$CFLAGS -x objective-c"
1612 if test "${with_ns}" != no; then
1613 if test "${opsys}" = darwin; then
1615 ns_appdir=`pwd`/nextstep/Emacs.app
1616 ns_appbindir=${ns_appdir}/Contents/MacOS
1617 ns_appresdir=${ns_appdir}/Contents/Resources
1618 ns_appsrc=Cocoa/Emacs.base
1619 elif test -f $GNUSTEP_CONFIG_FILE; then
1621 ns_appdir=`pwd`/nextstep/Emacs.app
1622 ns_appbindir=${ns_appdir}
1623 ns_appresdir=${ns_appdir}/Resources
1624 ns_appsrc=GNUstep/Emacs.base
1625 dnl FIXME sourcing this several times in subshells seems inefficient.
1626 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1627 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1628 dnl I seemed to need these as well with GNUstep-startup 0.25.
1629 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1630 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1631 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1632 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1633 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1634 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1635 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1636 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1637 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1638 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1639 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1640 dnl If they had chosen to either define it or not, we could have
1641 dnl just used AC_CHECK_DECL here.
1642 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1643 emacs_cv_objc_exceptions,
1644 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1645 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1649 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1650 if test $emacs_cv_objc_exceptions = yes; then
1651 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1652 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1653 [Define if GNUstep uses ObjC exceptions.])
1654 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1658 dnl This is only used while we test the NS headers, it gets reset below.
1659 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1661 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1662 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1663 files are missing or cannot be compiled.])])
1666 if test "${NS_IMPL_COCOA}" = "yes"; then
1667 AC_MSG_CHECKING([for OSX 10.4 or newer])
1668 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1670 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1671 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
1674 error "OSX 10.4 or newer required";
1678 ns_osx_have_104=yes,
1680 AC_MSG_RESULT([$ns_osx_have_104])
1682 if test $ns_osx_have_104 = no; then
1683 AC_MSG_ERROR([`OSX 10.4 or newer is required']);
1685 AC_MSG_CHECKING([for OSX 10.5 or newer])
1686 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1688 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1689 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1050
1692 error "OSX 10.5 not found";
1696 ns_osx_have_105=yes,
1698 AC_MSG_RESULT([$ns_osx_have_105])
1699 if test $ns_osx_have_105 = yes; then
1700 macfont_file="macfont.o"
1703 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1705 ns_have_nsinteger=yes,
1706 ns_have_nsinteger=no)
1707 if test $ns_have_nsinteger = yes; then
1708 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1712 AC_SUBST(LIBS_GNUSTEP)
1714 INSTALL_ARCH_INDEP_EXTRA=install-etc
1715 ns_self_contained=no
1718 if test "${HAVE_NS}" = yes; then
1719 if test "$with_toolkit_scroll_bars" = "no"; then
1720 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1723 window_system=nextstep
1724 # set up packaging dirs
1725 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1726 ns_self_contained=yes
1727 prefix=${ns_appresdir}
1728 exec_prefix=${ns_appbindir}
1729 dnl This one isn't really used, only archlibdir is.
1730 libexecdir="\${ns_appbindir}/libexec"
1731 archlibdir="\${ns_appbindir}/libexec"
1732 etcdocdir="\${ns_appresdir}/etc"
1733 etcdir="\${ns_appresdir}/etc"
1734 dnl FIXME maybe set datarootdir instead.
1735 dnl That would also get applications, icons, man.
1736 infodir="\${ns_appresdir}/info"
1737 mandir="\${ns_appresdir}/man"
1738 lispdir="\${ns_appresdir}/lisp"
1739 INSTALL_ARCH_INDEP_EXTRA=
1742 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o $macfont_file"
1744 CFLAGS="$tmp_CFLAGS"
1745 CPPFLAGS="$tmp_CPPFLAGS"
1746 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1747 AC_SUBST(ns_self_contained)
1749 AC_SUBST(NS_OBJC_OBJ)
1760 if test "${with_w32}" != no; then
1763 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1764 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1765 cannot be found.])])
1768 ## Using --with-w32 with MinGW is a no-op, but we allow it.
1771 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
1776 if test "${opsys}" = "mingw32"; then
1777 AC_MSG_CHECKING([whether Windows API headers are recent enough])
1778 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1779 #include <windows.h>
1780 #include <usp10.h>]],
1781 [[PIMAGE_NT_HEADERS pHeader;
1782 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
1783 [emacs_cv_w32api=yes
1786 AC_MSG_RESULT($emacs_cv_w32api)
1787 if test "${emacs_cv_w32api}" = "no"; then
1788 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
1799 if test "${HAVE_W32}" = "yes"; then
1800 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1801 AC_CHECK_TOOL(WINDRES, [windres],
1802 [AC_MSG_ERROR([No resource compiler found.])])
1803 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1804 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1805 EMACSRES="emacs.res"
1806 case "$canonical" in
1807 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
1808 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
1810 if test "${opsys}" = "cygwin"; then
1811 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1812 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1813 # Tell the linker that emacs.res is an object (which we compile from
1814 # the rc file), not a linker script.
1815 W32_RES_LINK="-Wl,emacs.res"
1817 UPDATE_MANIFEST=update-game-score.exe.manifest
1818 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
1819 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
1820 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
1821 W32_RES_LINK="\$(EMACSRES)"
1822 CLIENTRES="emacsclient.res"
1823 CLIENTW="emacsclientw\$(EXEEXT)"
1824 FIRSTFILE_OBJ=firstfile.o
1827 LIBS_ECLIENT="-lcomctl32"
1828 LIB_WSOCK32="-lwsock32"
1829 NTLIB="ntlib.$ac_objext"
1830 XARGS_LIMIT="-s 10000"
1836 AC_SUBST(EMACS_MANIFEST)
1837 AC_SUBST(UPDATE_MANIFEST)
1840 AC_SUBST(W32_RES_LINK)
1841 AC_SUBST(FIRSTFILE_OBJ)
1844 AC_SUBST(LIBS_ECLIENT)
1845 AC_SUBST(LIB_WSOCK32)
1847 AC_SUBST(XARGS_LIMIT)
1849 if test "${HAVE_W32}" = "yes"; then
1854 ## $window_system is now set to the window system we will
1857 if test "$window_system" = none && test "$gl_gcc_warnings" = yes; then
1858 # Too many warnings for now.
1860 nw="$nw -Wsuggest-attribute=const"
1861 nw="$nw -Wsuggest-attribute=noreturn"
1862 gl_MANYWARN_COMPLEMENT([WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
1864 gl_WARN_ADD([-Wno-unused-variable])
1865 gl_WARN_ADD([-Wno-unused-but-set-variable])
1866 gl_WARN_ADD([-Wno-unused-but-set-parameter])
1874 case "${window_system}" in
1879 case "${with_x_toolkit}" in
1880 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1881 motif ) USE_X_TOOLKIT=MOTIF ;;
1883 term_header=gtkutil.h
1884 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1885 dnl USE_X_TOOLKIT is set.
1886 USE_X_TOOLKIT=none ;;
1887 gtk2 ) with_gtk2=yes
1888 term_header=gtkutil.h
1889 USE_X_TOOLKIT=none ;;
1890 gtk3 ) with_gtk3=yes
1891 term_header=gtkutil.h
1892 USE_X_TOOLKIT=none ;;
1893 no ) USE_X_TOOLKIT=none ;;
1894 dnl If user did not say whether to use a toolkit, make this decision later:
1895 dnl use the toolkit if we have gtk, or X11R5 or newer.
1896 * ) USE_X_TOOLKIT=maybe ;;
1900 term_header=nsterm.h
1903 term_header=w32term.h
1907 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1908 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1909 if test "$HAVE_XSERVER" = true ||
1910 test -n "$DISPLAY" ||
1911 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1912 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1913 were found. You should install the relevant development files for X
1914 and for the toolkit you want, such as Gtk+ or Motif. Also make
1915 sure you have development files for image handling, i.e.
1916 tiff, gif, jpeg, png and xpm.
1917 If you are sure you want Emacs compiled without X window support, pass
1923 # Does the opsystem file prohibit the use of the GNU malloc?
1924 # Assume not, until told otherwise.
1928 [whether malloc is Doug Lea style],
1929 [emacs_cv_var_doug_lea_malloc],
1930 [emacs_cv_var_doug_lea_malloc=no
1931 dnl Hooks do not work with address sanitization.
1932 if test "$emacs_cv_sanitize_address" != yes; then
1935 [[#include <malloc.h>
1936 static void hook (void) {}]],
1937 [[malloc_set_state (malloc_get_state ());
1938 __after_morecore_hook = hook;
1939 __malloc_initialize_hook = hook;]])],
1940 [emacs_cv_var_doug_lea_malloc=yes])])
1942 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1944 system_malloc=$emacs_cv_sanitize_address
1946 ## darwin ld insists on the use of malloc routines in the System framework.
1947 darwin|sol2-10) system_malloc=yes ;;
1951 if test "${system_malloc}" = "yes"; then
1952 AC_DEFINE([SYSTEM_MALLOC], 1,
1953 [Define to 1 to use the system memory allocator, even if it is not
1957 (The GNU allocators don't work with this system configuration.)"
1960 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1961 VMLIMIT_OBJ=vm-limit.o
1963 AC_CHECK_HEADERS([sys/vlimit.h])
1964 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
1967 [[extern char data_start[]; char ch;]],
1968 [[return data_start < &ch;]])],
1969 [emacs_cv_data_start=yes],
1970 [emacs_cv_data_start=no])])
1971 if test $emacs_cv_data_start = yes; then
1972 AC_DEFINE([HAVE_DATA_START], 1,
1973 [Define to 1 if data_start is the address of the start
1974 of the main data segment.])
1977 AC_SUBST(GMALLOC_OBJ)
1978 AC_SUBST(VMLIMIT_OBJ)
1980 if test "$doug_lea_malloc" = "yes" ; then
1981 if test "$GNU_MALLOC" = yes ; then
1983 (Using Doug Lea's new malloc from the GNU C Library.)"
1985 AC_DEFINE(DOUG_LEA_MALLOC, 1,
1986 [Define to 1 if the system memory allocator is Doug Lea style,
1987 with malloc hooks and malloc_set_state.])
1989 ## Use mmap directly for allocating larger buffers.
1990 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
1991 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
1992 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
1994 gnu*) REL_ALLOC=no ;;
1998 if test x"${REL_ALLOC}" = x; then
1999 REL_ALLOC=${GNU_MALLOC}
2002 use_mmap_for_buffers=no
2004 cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
2008 if test $use_mmap_for_buffers = yes; then
2009 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
2013 LIBS="$LIBS_SYSTEM $LIBS"
2015 dnl FIXME replace main with a function we actually want from this library.
2016 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
2018 dnl Check for the POSIX thread library.
2020 AC_CHECK_HEADERS_ONCE(pthread.h)
2021 if test "$ac_cv_header_pthread_h"; then
2022 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
2023 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
2024 dnl testing for pthread_kill if Emacs uses gmalloc.c.
2025 if test "$GMALLOC_OBJ" = gmalloc.o; then
2026 emacs_pthread_function=pthread_atfork
2028 emacs_pthread_function=pthread_kill
2031 AC_SEARCH_LIBS([$emacs_pthread_function], [pthread],
2032 [AC_DEFINE([HAVE_PTHREAD], [1],
2033 [Define to 1 if you have pthread (-lpthread).])])
2034 if test "X$LIBS" != "X$OLD_LIBS"; then
2035 eval LIB_PTHREAD=\$ac_cv_search_$emacs_pthread_function
2039 AC_SUBST([LIB_PTHREAD])
2041 dnl Check for need for bigtoc support on IBM AIX
2045 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
2047 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
2048 *) gdb_cv_bigtoc=-bbigtoc ;;
2051 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
2052 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
2057 # Change CFLAGS, CPPFLAGS, and LIBS temporarily so that C_SWITCH_X_SITE
2058 # is for the tests that follow. We set them back later on.
2060 REAL_CFLAGS="$CFLAGS"
2061 REAL_CPPFLAGS="$CPPFLAGS"
2064 if test "${HAVE_X11}" = "yes"; then
2065 DEFS="$C_SWITCH_X_SITE $DEFS"
2066 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2068 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2069 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2071 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2072 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2073 # but it's more convenient here to set LD_RUN_PATH since this
2074 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2075 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2076 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2080 if test "${opsys}" = "gnu-linux"; then
2081 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2082 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2083 [[XOpenDisplay ("foo");]])],
2084 [xgnu_linux_first_failure=no],
2085 [xgnu_linux_first_failure=yes])
2086 if test "${xgnu_linux_first_failure}" = "yes"; then
2087 OLD_CPPFLAGS="$CPPFLAGS"
2089 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2090 LIBS="$LIBS -b i486-linuxaout"
2091 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2092 [[XOpenDisplay ("foo");]])],
2093 [xgnu_linux_second_failure=no],
2094 [xgnu_linux_second_failure=yes])
2095 if test "${xgnu_linux_second_failure}" = "yes"; then
2096 # If we get the same failure with -b, there is no use adding -b.
2097 # So leave it out. This plays safe.
2100 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2101 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2104 CPPFLAGS=$OLD_CPPFLAGS
2111 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2112 # header files included from there.
2113 AC_MSG_CHECKING(for Xkb)
2114 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2115 #include <X11/XKBlib.h>]],
2116 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2117 emacs_xkb=yes, emacs_xkb=no)
2118 AC_MSG_RESULT($emacs_xkb)
2119 if test $emacs_xkb = yes; then
2120 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2123 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2124 XScreenNumberOfScreen)
2127 if test "${window_system}" = "x11"; then
2128 AC_MSG_CHECKING(X11 version 6)
2129 AC_CACHE_VAL(emacs_cv_x11_version_6,
2130 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2131 [[#if XlibSpecificationRelease < 6
2134 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2135 if test $emacs_cv_x11_version_6 = yes; then
2136 AC_MSG_RESULT(6 or newer)
2137 AC_DEFINE(HAVE_X11R6, 1,
2138 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2139 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2140 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2144 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2145 [Define if you have usable X11R6-style XIM support.])
2149 AC_MSG_RESULT(before 6)
2154 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
2156 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2157 if test "${with_rsvg}" != "no"; then
2158 RSVG_REQUIRED=2.11.0
2159 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2161 EMACS_CHECK_MODULES([RSVG], [$RSVG_MODULE])
2162 AC_SUBST(RSVG_CFLAGS)
2165 if test $HAVE_RSVG = yes; then
2166 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2167 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2168 # Windows loads librsvg dynamically
2169 if test "${opsys}" = "mingw32"; then
2177 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${HAVE_W32}" = "yes"; then
2178 if test "${with_imagemagick}" != "no"; then
2179 ## 6.3.5 is the earliest version known to work; see Bug#17339.
2180 ## 6.8.2 makes Emacs crash; see Bug#13867.
2181 IMAGEMAGICK_MODULE="Wand >= 6.3.5 Wand != 6.8.2"
2182 EMACS_CHECK_MODULES([IMAGEMAGICK], [$IMAGEMAGICK_MODULE])
2183 AC_SUBST(IMAGEMAGICK_CFLAGS)
2184 AC_SUBST(IMAGEMAGICK_LIBS)
2186 if test $HAVE_IMAGEMAGICK = yes; then
2187 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2190 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2191 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2192 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
2202 gtk_term_header=$term_header
2205 if test "${opsys}" != "mingw32"; then
2206 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2209 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2211 dnl Checks for libraries.
2212 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2213 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2214 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2215 AC_MSG_ERROR($GTK_PKG_ERRORS)
2217 if test "$pkg_check_gtk" = "yes"; then
2218 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2219 GTK_OBJ=emacsgtkfixed.o
2220 gtk_term_header=gtkutil.h
2221 USE_GTK_TOOLKIT="GTK3"
2222 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2223 AC_DEFINE([GDK_DISABLE_DEPRECATION_WARNINGS], [1],
2224 [Define to 1 to disable GTK+/GDK deprecation warnings.])
2225 AC_DEFINE([GLIB_DISABLE_DEPRECATION_WARNINGS], [1],
2226 [Define to 1 to disable Glib deprecation warnings.])
2230 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2234 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2237 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2239 dnl Checks for libraries.
2240 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2241 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2242 if test "$pkg_check_gtk" = "no" &&
2243 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2245 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2247 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2254 if test x"$pkg_check_gtk" = xyes; then
2257 CFLAGS="$CFLAGS $GTK_CFLAGS"
2258 LIBS="$GTK_LIBS $LIBS"
2259 dnl Try to compile a simple GTK program.
2260 AC_MSG_CHECKING([whether GTK compiles])
2264 [[/* Check the Gtk and Glib APIs. */
2265 #include <gtk/gtk.h>
2266 #include <glib-object.h>
2268 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2272 GtkSettings *gs = 0;
2273 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2274 strict C prohibits this. Use gtk_main_iteration to test that the
2275 libraries are there. */
2276 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2277 0, 0, 0, G_CALLBACK (callback), 0))
2278 gtk_main_iteration ();
2281 AC_MSG_RESULT([$GTK_COMPILES])
2282 if test "${GTK_COMPILES}" != "yes"; then
2284 if test "$USE_X_TOOLKIT" != "maybe"; then
2285 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2288 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2290 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2291 GTK_OBJ="gtkutil.o $GTK_OBJ"
2292 term_header=$gtk_term_header
2294 if "$PKG_CONFIG" --atleast-version=2.10 gtk+-2.0; then
2297 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2298 closing open displays. This is no problem if you just use
2299 one display, but if you use more than one and close one of them
2309 if test "${HAVE_GTK}" = "yes"; then
2311 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2312 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2313 if test "$with_toolkit_scroll_bars" != no; then
2314 with_toolkit_scroll_bars=yes
2317 dnl Check if we have the old file selection dialog declared and
2318 dnl in the link library. In 2.x it may be in the library,
2319 dnl but not declared if deprecated featured has been selected out.
2320 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2321 HAVE_GTK_FILE_SELECTION=no
2322 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2323 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2324 #include <gtk/gtk.h>])
2325 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2326 AC_CHECK_FUNCS(gtk_file_selection_new)
2329 dnl Same as above for gtk_handle_box.
2330 HAVE_GTK_HANDLE_BOX=no
2331 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2332 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2333 #include <gtk/gtk.h>])
2334 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2335 AC_CHECK_FUNCS(gtk_handle_box_new)
2338 dnl Same as above for gtk_tearoff_menu_item.
2339 HAVE_GTK_TEAROFF_MENU_ITEM=no
2340 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2341 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2342 #include <gtk/gtk.h>])
2343 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2344 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2347 dnl Check for functions introduced in 2.14 and later.
2348 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2349 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2350 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2351 gtk_orientable_set_orientation \
2352 gtk_window_set_has_resize_grip)
2354 term_header=gtkutil.h
2360 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2361 dnl other platforms.
2364 if test "${with_dbus}" = "yes"; then
2365 EMACS_CHECK_MODULES([DBUS], [dbus-1 >= 1.0])
2366 if test "$HAVE_DBUS" = yes; then
2367 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2368 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2369 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2372 LIBS="$LIBS $DBUS_LIBS"
2373 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2374 dbus_type_is_valid \
2375 dbus_validate_bus_name \
2376 dbus_validate_path \
2377 dbus_validate_interface \
2378 dbus_validate_member)
2383 AC_SUBST(DBUS_CFLAGS)
2387 dnl GSettings has been tested under GNU/Linux only.
2389 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2390 EMACS_CHECK_MODULES([GSETTINGS], [gio-2.0 >= 2.26])
2391 if test "$HAVE_GSETTINGS" = "yes"; then
2393 CFLAGS="$CFLAGS $GSETTINGS_CFLAGS"
2395 LIBS="$LIBS $GSETTINGS_LIBS"
2396 AC_MSG_CHECKING([whether GSettings is in gio])
2399 [[/* Check that gsettings really is present. */
2400 #include <glib-object.h>
2401 #include <gio/gio.h>
2404 GSettings *settings;
2405 GVariant *val = g_settings_get_value (settings, "");
2407 [], HAVE_GSETTINGS=no)
2408 AC_MSG_RESULT([$HAVE_GSETTINGS])
2410 if test "$HAVE_GSETTINGS" = "yes"; then
2411 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2412 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2413 SETTINGS_LIBS="$GSETTINGS_LIBS"
2420 dnl GConf has been tested under GNU/Linux only.
2421 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2423 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2424 EMACS_CHECK_MODULES([GCONF], [gconf-2.0 >= 2.13])
2425 if test "$HAVE_GCONF" = yes; then
2426 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2427 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2428 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2429 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2433 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2434 EMACS_CHECK_MODULES([GOBJECT], [gobject-2.0 >= 2.0])
2435 if test "$HAVE_GOBJECT" = "yes"; then
2436 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2437 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2439 SAVE_CFLAGS="$CFLAGS"
2441 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2442 LIBS="$SETTINGS_LIBS $LIBS"
2443 CFLAGS="$SAVE_CFLAGS"
2446 AC_SUBST(SETTINGS_CFLAGS)
2447 AC_SUBST(SETTINGS_LIBS)
2450 dnl SELinux is available for GNU/Linux only.
2453 if test "${with_selinux}" = "yes"; then
2454 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2455 if test "$HAVE_LIBSELINUX" = yes; then
2456 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2457 LIBSELINUX_LIBS=-lselinux
2460 AC_SUBST(LIBSELINUX_LIBS)
2464 if test "${with_gnutls}" = "yes" ; then
2465 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 3.0.0],
2466 [HAVE_GNUTLS3=yes], [HAVE_GNUTLS3=no])
2467 if test "${HAVE_GNUTLS3}" = "yes"; then
2468 AC_DEFINE(HAVE_GNUTLS3, 1, [Define if using GnuTLS v3.])
2471 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6],
2472 [HAVE_GNUTLS=yes], [HAVE_GNUTLS=no])
2474 if test "${HAVE_GNUTLS}" = "yes"; then
2475 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2478 # Windows loads GnuTLS dynamically
2479 if test "${opsys}" = "mingw32"; then
2484 AC_SUBST(LIBGNUTLS_LIBS)
2485 AC_SUBST(LIBGNUTLS_CFLAGS)
2490 dnl FIXME? Don't auto-detect on NS, but do allow someone to specify
2491 dnl a particular library. This doesn't make much sense?
2492 if test "${with_ns}" = yes && test ${with_file_notification} = yes; then
2493 with_file_notification=no
2496 dnl MS Windows native file monitor is available for mingw32 only.
2497 case $with_file_notification,$opsys in
2498 w32,* | yes,mingw32)
2499 AC_CHECK_HEADER(windows.h)
2500 if test "$ac_cv_header_windows_h" = yes ; then
2501 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2502 NOTIFY_OBJ=w32notify.o
2503 NOTIFY_SUMMARY="yes (w32)"
2507 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2508 dnl has been added in glib 2.24. It has been tested under
2509 dnl GNU/Linux only. We take precedence over inotify, but this makes
2510 dnl only sense when glib has been compiled with inotify support. How
2512 case $with_file_notification,$NOTIFY_OBJ in
2514 EMACS_CHECK_MODULES([GFILENOTIFY], [gio-2.0 >= 2.24])
2515 if test "$HAVE_GFILENOTIFY" = "yes"; then
2516 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2517 NOTIFY_OBJ=gfilenotify.o
2518 NOTIFY_SUMMARY="yes -lgio (gfile)"
2522 dnl inotify is only available on GNU/Linux.
2523 case $with_file_notification,$NOTIFY_OBJ in
2525 AC_CHECK_HEADER(sys/inotify.h)
2526 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2527 AC_CHECK_FUNC(inotify_init1)
2528 if test "$ac_cv_func_inotify_init1" = yes; then
2529 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2530 NOTIFY_OBJ=inotify.o
2531 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2536 case $with_file_notification,$NOTIFY_OBJ in
2537 yes,* | no,* | *,?*) ;;
2538 *) AC_MSG_ERROR([File notification `$with_file_notification' requested but requirements not found.]) ;;
2541 if test -n "$NOTIFY_OBJ"; then
2542 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2544 AC_SUBST(NOTIFY_OBJ)
2545 AC_SUBST(GFILENOTIFY_CFLAGS)
2546 AC_SUBST(GFILENOTIFY_LIBS)
2548 dnl Do not put whitespace before the #include statements below.
2549 dnl Older compilers (eg sunos4 cc) choke on it.
2552 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2553 if test "$with_xaw3d" != no; then
2554 AC_CACHE_VAL(emacs_cv_xaw3d,
2555 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2556 #include <X11/Intrinsic.h>
2557 #include <X11/Xaw3d/Simple.h>]],
2559 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2560 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2561 emacs_cv_xaw3d=no)])
2565 if test $emacs_cv_xaw3d = yes; then
2566 AC_MSG_CHECKING(for xaw3d)
2567 AC_MSG_RESULT([yes; using Lucid toolkit])
2571 AC_DEFINE(HAVE_XAW3D, 1,
2572 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2574 AC_MSG_CHECKING(for xaw3d)
2576 AC_MSG_CHECKING(for libXaw)
2577 AC_CACHE_VAL(emacs_cv_xaw,
2578 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2579 #include <X11/Intrinsic.h>
2580 #include <X11/Xaw/Simple.h>]],
2584 if test $emacs_cv_xaw = yes; then
2585 AC_MSG_RESULT([yes; using Lucid toolkit])
2588 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2589 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2591 AC_MSG_ERROR([No X toolkit could be found.
2592 If you are sure you want Emacs compiled without an X toolkit, pass
2594 to configure. Otherwise, install the development libraries for the toolkit
2595 that you want to use (e.g. Gtk+) and re-run configure.])
2600 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2604 if test "${USE_X_TOOLKIT}" != "none"; then
2605 AC_MSG_CHECKING(X11 toolkit version)
2606 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2607 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2608 [[#if XtSpecificationRelease < 6
2611 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2612 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2613 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2614 AC_MSG_RESULT(6 or newer)
2615 AC_DEFINE(HAVE_X11XTR6, 1,
2616 [Define to 1 if you have the X11R6 or newer version of Xt.])
2617 LIBXTR6="-lSM -lICE"
2619 ## Use libw.a along with X11R6 Xt.
2620 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2623 AC_MSG_RESULT(before 6)
2626 dnl If using toolkit, check whether libXmu.a exists.
2627 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2629 if test x$HAVE_X11XTR6 = xyes; then
2630 OTHERLIBS='-lXt -lSM -lICE'
2634 AC_SEARCH_LIBS([XmuConvertStandardSelection], [Xmu], [], [], [$OTHERLIBS])
2635 if test "X$LIBS" != "X$OLDLIBS"; then
2636 LIBXMU=$ac_cv_search_XmuConvertStandardSelection
2639 dnl ac_cv_search_XmuConvertStandardSelection is also referenced below.
2645 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2646 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2647 if test -d /usr/include/openmotif; then
2648 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2649 emacs_cv_openmotif=yes
2650 case "$canonical" in
2651 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2652 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2655 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2658 emacs_cv_openmotif=no
2660 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2661 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2662 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2665 Motif version prior to 2.1.
2667 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2668 if test $emacs_cv_motif_version_2_1 = yes; then
2669 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2670 if test x$emacs_cv_openmotif = xyes; then
2671 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2674 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2675 # We put this in CFLAGS temporarily to precede other -I options
2676 # that might be in CFLAGS temporarily.
2677 # We put this in CPPFLAGS where it precedes the other -I options.
2678 OLD_CPPFLAGS=$CPPFLAGS
2680 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2681 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2682 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2684 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2685 if test $emacs_cv_lesstif = yes; then
2686 # Make sure this -I option remains in CPPFLAGS after it is set
2687 # back to REAL_CPPFLAGS.
2688 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2689 # have those other -I options anyway. Ultimately, having this
2690 # directory ultimately in CPPFLAGS will be enough.
2691 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2692 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2695 CPPFLAGS=$OLD_CPPFLAGS
2698 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2699 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2702 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2703 dnl using Motif or Xaw3d is available, and unless
2704 dnl --with-toolkit-scroll-bars=no was specified.
2706 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2707 [Define to 1 if we should use toolkit scroll bars.])dnl
2708 USE_TOOLKIT_SCROLL_BARS=no
2709 if test "${with_toolkit_scroll_bars}" != "no"; then
2710 if test "${USE_X_TOOLKIT}" != "none"; then
2711 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2712 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2714 USE_TOOLKIT_SCROLL_BARS=yes
2715 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2716 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2717 USE_TOOLKIT_SCROLL_BARS=yes
2719 elif test "${HAVE_GTK}" = "yes"; then
2720 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2721 USE_TOOLKIT_SCROLL_BARS=yes
2722 elif test "${HAVE_NS}" = "yes"; then
2723 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2724 USE_TOOLKIT_SCROLL_BARS=yes
2725 elif test "${HAVE_W32}" = "yes"; then
2726 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2727 USE_TOOLKIT_SCROLL_BARS=yes
2731 dnl See if XIM is available.
2732 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2733 #include <X11/Xlib.h>
2734 #include <X11/Xresource.h>]],
2735 [[XIMProc callback;]])],
2737 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2740 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2742 if test "${with_xim}" != "no"; then
2743 AC_DEFINE(USE_XIM, 1,
2744 [Define to 1 if we should use XIM, if it is available.])
2748 if test "${HAVE_XIM}" != "no"; then
2750 if test "$GCC" = yes; then
2751 CFLAGS="$CFLAGS --pedantic-errors"
2753 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2754 #include <X11/Xlib.h>
2755 #include <X11/Xresource.h>]],
2761 XPointer *client_data;
2763 /* If we're not using GCC, it's probably not XFree86, and this is
2764 probably right, but we can't use something like --pedantic-errors. */
2765 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2766 char*, XIMProc, XPointer*);
2768 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2770 [emacs_cv_arg6_star=yes])
2771 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2772 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2773 either XPointer or XPointer*.])dnl
2774 if test "$emacs_cv_arg6_star" = yes; then
2775 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2777 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2782 ### Start of font-backend (under any platform) section.
2783 # (nothing here yet -- this is a placeholder)
2784 ### End of font-backend (under any platform) section.
2786 ### Start of font-backend (under X11) section.
2787 if test "${HAVE_X11}" = "yes"; then
2788 EMACS_CHECK_MODULES([FONTCONFIG], [fontconfig >= 2.2.0],
2789 [HAVE_FC=yes], [HAVE_FC=no])
2791 ## Use -lXft if available, unless `--with-xft=no'.
2793 if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2796 if test "x${with_xft}" != "xno"; then
2798 EMACS_CHECK_MODULES([XFT], [xft >= 0.13.0], [], [HAVE_XFT=no])
2799 ## Because xftfont.c uses XRenderQueryExtension, we also
2800 ## need to link to -lXrender.
2802 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2803 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2804 OLD_CPPFLAGS="$CPPFLAGS"
2805 OLD_CFLAGS="$CFLAGS"
2807 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2808 CFLAGS="$CFLAGS $XFT_CFLAGS"
2809 XFT_LIBS="-lXrender $XFT_LIBS"
2810 LIBS="$XFT_LIBS $LIBS"
2811 AC_CHECK_HEADER(X11/Xft/Xft.h,
2812 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
2813 [[#include <X11/X.h>]])
2815 if test "${HAVE_XFT}" = "yes"; then
2816 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2818 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2819 fi # "${HAVE_XFT}" = "yes"
2820 CPPFLAGS=$OLD_CPPFLAGS
2823 fi # "$HAVE_XFT" != no
2824 fi # "x${with_xft}" != "xno"
2826 ## We used to allow building with FreeType and without Xft.
2827 ## However, the ftx font backend driver is not in good shape.
2828 if test "$HAVE_XFT" != "yes"; then
2829 dnl For the "Does Emacs use" message at the end.
2833 dnl Strict linkers fail with
2834 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2835 dnl if -lfreetype is not specified.
2836 dnl The following is needed to set FREETYPE_LIBS.
2837 EMACS_CHECK_MODULES([FREETYPE], [freetype2])
2839 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2843 if test "${HAVE_FREETYPE}" = "yes"; then
2844 AC_DEFINE(HAVE_FREETYPE, 1,
2845 [Define to 1 if using the freetype and fontconfig libraries.])
2846 if test "${with_libotf}" != "no"; then
2847 EMACS_CHECK_MODULES([LIBOTF], [libotf])
2848 if test "$HAVE_LIBOTF" = "yes"; then
2849 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2850 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2851 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2852 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2853 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2854 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2855 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2859 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2860 dnl Does the new font backend require it, or can it work without it?
2864 if test "${HAVE_LIBOTF}" = yes; then
2865 if test "${with_m17n_flt}" != "no"; then
2866 EMACS_CHECK_MODULES([M17N_FLT], [m17n-flt])
2867 if test "$HAVE_M17N_FLT" = "yes"; then
2868 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2879 ### End of font-backend (under X11) section.
2881 AC_SUBST(FREETYPE_CFLAGS)
2882 AC_SUBST(FREETYPE_LIBS)
2883 AC_SUBST(FONTCONFIG_CFLAGS)
2884 AC_SUBST(FONTCONFIG_LIBS)
2885 AC_SUBST(LIBOTF_CFLAGS)
2886 AC_SUBST(LIBOTF_LIBS)
2887 AC_SUBST(M17N_FLT_CFLAGS)
2888 AC_SUBST(M17N_FLT_LIBS)
2890 ### Use -lXpm if available, unless `--with-xpm=no'.
2891 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
2894 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
2895 if test "${with_xpm}" != "no"; then
2896 SAVE_CPPFLAGS="$CPPFLAGS"
2897 SAVE_LDFLAGS="$LDFLAGS"
2898 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
2899 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
2900 AC_CHECK_HEADER(X11/xpm.h,
2901 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
2902 if test "${HAVE_XPM}" = "yes"; then
2903 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2904 AC_EGREP_CPP(no_return_alloc_pixels,
2905 [#include "X11/xpm.h"
2906 #ifndef XpmReturnAllocPixels
2907 no_return_alloc_pixels
2909 ], HAVE_XPM=no, HAVE_XPM=yes)
2911 if test "${HAVE_XPM}" = "yes"; then
2912 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
2916 CPPFLAGS="$SAVE_CPPFLAGS"
2917 LDFLAGS="$SAVE_LDFLAGS"
2922 if test "${HAVE_XPM}" = "yes"; then
2923 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2928 if test "${HAVE_X11}" = "yes"; then
2929 if test "${with_xpm}" != "no"; then
2930 AC_CHECK_HEADER(X11/xpm.h,
2931 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2932 if test "${HAVE_XPM}" = "yes"; then
2933 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2934 AC_EGREP_CPP(no_return_alloc_pixels,
2935 [#include "X11/xpm.h"
2936 #ifndef XpmReturnAllocPixels
2937 no_return_alloc_pixels
2939 ], HAVE_XPM=no, HAVE_XPM=yes)
2941 if test "${HAVE_XPM}" = "yes"; then
2949 if test "${HAVE_XPM}" = "yes"; then
2950 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2955 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
2956 ### slightly different requirements wrt image libraries (it doesn't
2957 ### use -lXpm because it loads the xpm shared library dynamically at
2959 if test "${opsys}" = "mingw32"; then
2960 if test "${with_xpm}" != "no"; then
2961 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
2965 if test "${HAVE_XPM}" = "yes"; then
2966 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2972 ### Use -ljpeg if available, unless `--with-jpeg=no'.
2973 ### mingw32 doesn't use -ljpeg, since it loads the library dynamically.
2976 if test "${opsys}" = "mingw32"; then
2977 if test "${with_jpeg}" != "no"; then
2978 dnl Checking for jpeglib.h can lose because of a redefinition of
2980 AC_CHECK_HEADER(jerror.h, HAVE_JPEG=yes, HAVE_JPEG=no)
2982 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2983 if test "${HAVE_JPEG}" = "yes"; then
2984 AC_DEFINE(HAVE_JPEG)
2985 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2986 [#include <jpeglib.h>
2987 version=JPEG_LIB_VERSION
2989 [AC_DEFINE(HAVE_JPEG)],
2990 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2993 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2994 if test "${with_jpeg}" != "no"; then
2995 dnl Checking for jpeglib.h can lose because of a redefinition of
2997 AC_CHECK_HEADER(jerror.h,
2998 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
3001 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
3002 if test "${HAVE_JPEG}" = "yes"; then
3003 AC_DEFINE(HAVE_JPEG)
3004 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
3005 [#include <jpeglib.h>
3006 version=JPEG_LIB_VERSION
3008 [AC_DEFINE(HAVE_JPEG)],
3009 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
3012 if test "${HAVE_JPEG}" = "yes"; then
3020 if test "${with_zlib}" != "no"; then
3022 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
3024 case $ac_cv_search_inflateEnd in
3025 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3028 if test "${HAVE_ZLIB}" = "yes"; then
3029 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3030 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3031 if test "${opsys}" = "mingw32"; then
3037 ### Use -lpng if available, unless `--with-png=no'.
3041 if test "${with_png}" != no; then
3042 # mingw32 loads the library dynamically.
3043 if test "$opsys" = mingw32; then
3044 AC_CHECK_HEADER([png.h], [HAVE_PNG=yes])
3045 elif png_cflags=`(libpng-config --cflags) 2>&AS_MESSAGE_LOG_FD` &&
3046 png_libs=`(libpng-config --libs) 2>&AS_MESSAGE_LOG_FD`
3049 PNG_CFLAGS=`AS_ECHO(["$png_cflags"]) | sed -e "$edit_cflags"`
3052 # libpng-config does not work; configure by hand.
3053 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
3054 # in /usr/include/libpng.
3055 AC_CHECK_HEADERS([png.h libpng/png.h],
3056 [AC_CHECK_LIB([png], [png_get_channels],
3059 if test "$ac_cv_header_png_h" != yes; then
3060 PNG_CFLAGS=-I/usr/include/libpng
3065 # $LIBPNG requires explicit -lz in some cases.
3066 # We don't know what those cases are, exactly, so play it safe and
3067 # append -lz to any nonempty $LIBPNG, unless we're already using LIBZ.
3068 if test -n "$LIBPNG" && test -z "$LIBZ"; then
3069 LIBPNG="$LIBPNG -lz"
3072 if test $HAVE_PNG = yes; then
3073 AC_DEFINE([HAVE_PNG], [1], [Define to 1 if you have the png library.])
3076 CFLAGS="$CFLAGS $PNG_CFLAGS"
3077 AC_CHECK_DECL([png_longjmp],
3079 [AC_DEFINE([PNG_DEPSTRUCT], [],
3080 [Define to empty to suppress deprecation warnings when building
3081 with --enable-gcc-warnings and with libpng versions before 1.5,
3082 which lack png_longjmp.])],
3088 AC_SUBST(PNG_CFLAGS)
3090 ### Use -ltiff if available, unless `--with-tiff=no'.
3091 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3094 if test "${opsys}" = "mingw32"; then
3095 if test "${with_tiff}" != "no"; then
3096 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3098 if test "${HAVE_TIFF}" = "yes"; then
3099 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3101 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3102 if test "${with_tiff}" != "no"; then
3103 AC_CHECK_HEADER(tiffio.h,
3105 # At least one tiff package requires the jpeg library.
3106 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3107 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3110 if test "${HAVE_TIFF}" = "yes"; then
3111 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3112 dnl FIXME -lz -lm, as per libpng?
3118 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
3119 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3122 if test "${opsys}" = "mingw32"; then
3123 if test "${with_gif}" != "no"; then
3124 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3126 if test "${HAVE_GIF}" = "yes"; then
3127 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3129 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3130 || test "${HAVE_W32}" = "yes"; then
3131 AC_CHECK_HEADER(gif_lib.h,
3132 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3133 # Earlier versions can crash Emacs, but version 5.0 removes EGifPutExtensionLast.
3134 [AC_CHECK_LIB(gif, GifMakeMapObject, HAVE_GIF=yes,
3135 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])])
3137 if test "$HAVE_GIF" = yes; then
3139 elif test "$HAVE_GIF" = maybe; then
3140 # If gif_lib.h but no libgif, try libungif.
3141 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3142 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3145 if test "${HAVE_GIF}" = "yes"; then
3146 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3151 dnl Check for required libraries.
3152 if test "${HAVE_X11}" = "yes"; then
3155 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3156 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3157 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3158 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3159 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3160 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3161 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3162 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3163 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3164 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3166 if test "X${MISSING}" != X; then
3167 AC_MSG_ERROR([The following required libraries were not found:
3169 Maybe some development libraries/packages are missing?
3170 If you don't want to link with them give
3172 as options to configure])
3176 ### Use -lgpm if available, unless `--with-gpm=no'.
3179 if test "${with_gpm}" != "no"; then
3180 AC_CHECK_HEADER(gpm.h,
3181 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3183 if test "${HAVE_GPM}" = "yes"; then
3184 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3190 dnl Check for malloc/malloc.h on darwin
3191 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3194 ### Use NeXTstep API to implement GUI.
3195 if test "${HAVE_NS}" = "yes"; then
3196 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
3197 if test "${NS_IMPL_COCOA}" = "yes"; then
3198 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
3200 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3201 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3202 # See also .m.o rule in Makefile.in */
3203 # FIXME: are all these flags really needed? Document here why. */
3204 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3205 ## Extra CFLAGS applied to src/*.m files.
3206 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3211 ### Use session management (-lSM -lICE) if available
3214 if test "${HAVE_X11}" = "yes"; then
3215 AC_CHECK_HEADER(X11/SM/SMlib.h,
3216 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3218 if test "${HAVE_X_SM}" = "yes"; then
3219 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3225 ### Use XRandr (-lXrandr) if available
3227 if test "${HAVE_X11}" = "yes"; then
3228 XRANDR_REQUIRED=1.2.2
3229 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3230 EMACS_CHECK_MODULES([XRANDR], [$XRANDR_MODULES])
3231 if test $HAVE_XRANDR = no; then
3232 # Test old way in case pkg-config doesn't have it (older machines).
3233 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3234 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)])
3235 if test $HAVE_XRANDR = yes; then
3236 XRANDR_LIBS=-lXrandr
3239 if test $HAVE_XRANDR = yes; then
3240 SAVE_CFLAGS="$CFLAGS"
3242 CFLAGS="$XRANDR_CFLAGS $CFLAGS"
3243 LIBS="$XRANDR_LIBS $LIBS"
3244 AC_CHECK_FUNCS(XRRGetOutputPrimary XRRGetScreenResourcesCurrent)
3245 CFLAGS="$SAVE_CFLAGS"
3248 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3251 AC_SUBST(XRANDR_CFLAGS)
3252 AC_SUBST(XRANDR_LIBS)
3254 ### Use Xinerama (-lXinerama) if available
3256 if test "${HAVE_X11}" = "yes"; then
3257 XINERAMA_REQUIRED=1.0.2
3258 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3259 EMACS_CHECK_MODULES([XINERAMA], [$XINERAMA_MODULES])
3260 if test $HAVE_XINERAMA = no; then
3261 # Test old way in case pkg-config doesn't have it (older machines).
3262 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3263 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3264 if test $HAVE_XINERAMA = yes; then
3265 XINERAMA_LIBS=-lXinerama
3268 if test $HAVE_XINERAMA = yes; then
3269 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3272 AC_SUBST(XINERAMA_CFLAGS)
3273 AC_SUBST(XINERAMA_LIBS)
3276 ### Use libxml (-lxml2) if available
3277 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3279 if test "${with_xml2}" != "no"; then
3280 ### I'm not sure what the version number should be, so I just guessed.
3281 EMACS_CHECK_MODULES([LIBXML2], [libxml-2.0 > 2.6.17])
3282 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3283 if test "${HAVE_LIBXML2}" != "yes" -a "$opsys" = "darwin"; then
3284 SAVE_CPPFLAGS="$CPPFLAGS"
3285 CPPFLAGS="$CPPFLAGS -I$xcsdkdir/usr/include/libxml2"
3286 AC_CHECK_HEADER(libxml/HTMLparser.h,
3287 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3288 [#include <libxml/HTMLparser.h>])])
3289 CPPFLAGS="$SAVE_CPPFLAGS"
3290 if test "${HAVE_LIBXML2}" = "yes"; then
3291 LIBXML2_CFLAGS="-I'$xcsdkdir/usr/include/libxml2'"
3292 LIBXML2_LIBS="-lxml2"
3295 if test "${HAVE_LIBXML2}" = "yes"; then
3296 if test "${opsys}" != "mingw32"; then
3297 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no
3302 if test "${HAVE_LIBXML2}" = "yes"; then
3303 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3310 AC_SUBST(LIBXML2_LIBS)
3311 AC_SUBST(LIBXML2_CFLAGS)
3313 # If netdb.h doesn't declare h_errno, we must declare it by hand.
3314 # On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
3315 if test "${opsys}" = "mingw32"; then
3316 emacs_cv_netdb_declares_h_errno=yes
3318 AC_CACHE_CHECK(whether netdb declares h_errno,
3319 emacs_cv_netdb_declares_h_errno,
3320 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
3321 [[return h_errno;]])],
3322 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
3323 if test $emacs_cv_netdb_declares_h_errno = yes; then
3324 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
3327 # Check for mail-locking functions in a "mail" library. Probably this should
3328 # have the same check as for liblockfile below.
3329 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
3330 if test $have_mail = yes; then
3332 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
3335 LIBS="$LIBS_MAIL $LIBS"
3336 AC_CHECK_FUNCS(touchlock)
3341 dnl Debian, at least:
3342 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
3343 if test $have_lockfile = yes; then
3344 LIBS_MAIL=-llockfile
3345 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
3347 # If we have the shared liblockfile, assume we must use it for mail
3348 # locking (e.g. Debian). If we couldn't link against liblockfile
3349 # (no liblockfile.a installed), ensure that we don't need to.
3350 dnl This works for files generally, not just executables.
3351 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3352 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
3353 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
3354 if test $ac_cv_prog_liblockfile = yes; then
3355 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3356 This probably means that movemail could lose mail.
3357 There may be a `development' package to install containing liblockfile.])
3360 AC_CHECK_HEADERS_ONCE(maillock.h)
3363 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3364 ## interlock access to the mail spool. The alternative is a lock file named
3365 ## /usr/spool/mail/$USER.lock.
3368 aix4-2) mail_lock="lockf" ;;
3370 gnu|freebsd|dragonfly|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
3372 ## On GNU/Linux systems, both methods are used by various mail programs.
3373 ## I assume most people are using newer mailers that have heard of flock.
3374 ## Change this if you need to.
3375 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
3376 ## configure gets the right answers, and that means *NOT* using flock.
3377 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3378 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
3379 ## Debian maintainer hasn't provided a clean fix for Emacs.
3380 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
3381 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3382 ## correct logic. -- fx
3383 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3384 ## liblockfile is a Free Software replacement for libmail, used on
3385 ## Debian systems and elsewhere. -rfr.
3388 if test $have_mail = yes || test $have_lockfile = yes; then
3389 test $ac_cv_header_maillock_h = yes && mail_lock=no
3394 mail_lock="none-needed" ;;
3398 case "$mail_lock" in
3399 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3401 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3405 *) BLESSMAIL_TARGET="need-blessmail" ;;
3407 AC_SUBST(BLESSMAIL_TARGET)
3410 LIBS="$LIB_MATH $LIBS"
3411 AC_CHECK_FUNCS(accept4 gethostname \
3412 getrusage get_current_dir_name \
3413 lrand48 random rint \
3414 select getpagesize setlocale \
3415 getrlimit setrlimit shutdown getaddrinfo \
3416 strsignal setitimer \
3417 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
3418 gai_strerror getline getdelim sync \
3419 getpwent endpwent getgrent endgrent \
3420 cfmakeraw cfsetspeed copysign __executable_start log2)
3423 dnl No need to check for aligned_alloc and posix_memalign if using
3424 dnl gmalloc.o, as it supplies them. Don't use these functions on
3425 dnl Darwin as they are incompatible with unexmacosx.c.
3426 if test -z "$GMALLOC_OBJ" && test "$opsys" != darwin; then
3427 AC_CHECK_FUNCS([aligned_alloc posix_memalign], [break])
3430 dnl Cannot use AC_CHECK_FUNCS
3431 AC_CACHE_CHECK([for __builtin_unwind_init],
3432 emacs_cv_func___builtin_unwind_init,
3433 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3434 emacs_cv_func___builtin_unwind_init=yes,
3435 emacs_cv_func___builtin_unwind_init=no)])
3436 if test $emacs_cv_func___builtin_unwind_init = yes; then
3437 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3438 [Define to 1 if you have the `__builtin_unwind_init' function.])
3441 AC_CHECK_HEADERS_ONCE(sys/un.h)
3446 AC_CHECK_FUNCS(grantpt)
3448 # PTY-related GNU extensions.
3449 AC_CHECK_FUNCS(getpt posix_openpt)
3451 # Check this now, so that we will NOT find the above functions in ncurses.
3452 # That is because we have not set up to link ncurses in lib-src.
3453 # It's better to believe a function is not available
3454 # than to expect to find it in ncurses.
3455 # Also we need tputs and friends to be able to build at all.
3456 AC_MSG_CHECKING([for library containing tputs])
3457 # Run a test program that contains a call to tputs, a call that is
3458 # never executed. This tests whether a pre-'main' dynamic linker
3459 # works with the library. It's too much trouble to actually call
3460 # tputs in the test program, due to portability hassles. When
3461 # cross-compiling, assume the test program will run if it links.
3462 AC_DEFUN([tputs_link_source], [
3464 [[extern void tputs (const char *, int, int (*)(int));
3465 int main (int argc, char **argv)
3468 tputs (argv[0], 0, 0);
3472 if test "${opsys}" = "mingw32"; then
3475 # Maybe curses should be tried earlier?
3476 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3477 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3479 if test -z "$tputs_library"; then
3483 LIBS_TERMCAP=-l$tputs_library
3485 LIBS="$LIBS_TERMCAP $LIBS"
3487 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3488 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3490 if test "X$msg" != Xno; then
3495 AC_MSG_RESULT([$msg])
3496 if test "X$msg" = Xno; then
3497 AC_MSG_ERROR([The required function `tputs' was not found in any library.
3498 The following libraries were tried (in order):
3499 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3500 Please try installing whichever of these libraries is most appropriate
3501 for your system, together with its header files.
3502 For example, a libncurses-dev(el) or similar package.])
3505 ## Use termcap instead of terminfo?
3506 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3508 ## FIXME? In the cases below where we unconditionally set
3509 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3510 ## if that was found above to have tputs.
3511 ## Should we use the gnu* logic everywhere?
3513 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3514 ## The ncurses library has been moved out of the System framework in
3515 ## Mac OS X 10.2. So if configure detects it, set the command-line
3516 ## option to use it.
3517 darwin) LIBS_TERMCAP="-lncurses" ;;
3519 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3522 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3523 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3524 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3525 [[#if __FreeBSD_version < 400000
3528 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3530 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3532 if test $emacs_cv_freebsd_terminfo = yes; then
3533 LIBS_TERMCAP="-lncurses"
3536 LIBS_TERMCAP="-ltermcap"
3546 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3548 LIBS_TERMCAP="-ltermcap"
3552 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
3554 ## hpux: Make sure we get select from libc rather than from libcurses
3555 ## because libcurses on HPUX 10.10 has a broken version of select.
3556 ## We used to use -lc -lcurses, but this may be cleaner.
3557 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3558 # set that way, now it uses the default). Isn't this a contradiction?
3559 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3563 TERMCAP_OBJ=tparam.o
3564 if test $TERMINFO = yes; then
3565 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3566 TERMCAP_OBJ=terminfo.o
3568 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
3569 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
3571 AC_SUBST(LIBS_TERMCAP)
3572 AC_SUBST(TERMCAP_OBJ)
3575 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3576 # On Darwin, res_init appears not to be useful: see bug#562 and
3577 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3580 if test $opsys != darwin; then
3582 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3583 #include <arpa/nameser.h>
3584 #include <resolv.h>]],
3585 [[return res_init();]])],
3586 have_res_init=yes, have_res_init=no)
3587 if test "$have_res_init" = no; then
3589 LIBS="$LIBS -lresolv"
3590 AC_MSG_CHECKING(for res_init with -lresolv)
3591 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3592 #include <arpa/nameser.h>
3593 #include <resolv.h>]],
3594 [[return res_init();]])],
3595 have_res_init=yes, have_res_init=no)
3596 AC_MSG_RESULT($have_res_init)
3597 if test "$have_res_init" = yes ; then
3603 if test "$have_res_init" = yes; then
3604 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3608 # Do we need the Hesiod library to provide the support routines?
3609 dnl FIXME? Should we be skipping this on Darwin too?
3611 if test "$with_hesiod" != no ; then
3612 # Don't set $LIBS here -- see comments above. FIXME which comments?
3613 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3614 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3615 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3616 if test "$resolv" = yes ; then
3621 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3622 hesiod=yes, :, $RESOLVLIB)])
3624 if test x"$hesiod" = xyes; then
3630 # Do we need libresolv (due to res_init or Hesiod)?
3631 if test "$resolv" = yes && test $opsys != darwin; then
3638 # These tell us which Kerberos-related libraries to use.
3645 if test "${with_kerberos}" != no; then
3647 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3648 if test $have_com_err = yes; then
3649 COM_ERRLIB=-lcom_err
3650 LIBS="$COM_ERRLIB $LIBS"
3652 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3653 if test $have_crypto = yes; then
3655 LIBS="$CRYPTOLIB $LIBS"
3657 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3658 if test $have_k5crypto = yes; then
3659 CRYPTOLIB=-lk5crypto
3660 LIBS="$CRYPTOLIB $LIBS"
3662 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3663 if test $have_krb5=yes; then
3665 LIBS="$KRB5LIB $LIBS"
3667 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3668 if test "${with_kerberos5}" = no; then
3669 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3670 if test $have_des425 = yes; then
3672 LIBS="$DESLIB $LIBS"
3674 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3675 if test $have_des = yes; then
3677 LIBS="$DESLIB $LIBS"
3680 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3681 if test $have_krb4 = yes; then
3683 LIBS="$KRB4LIB $LIBS"
3685 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3686 if test $have_krb = yes; then
3688 LIBS="$KRB4LIB $LIBS"
3693 if test "${with_kerberos5}" != no; then
3694 AC_CHECK_HEADERS(krb5.h,
3695 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3696 [#include <krb5.h>])])
3698 AC_CHECK_HEADERS(krb.h,,
3699 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3700 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3702 AC_CHECK_HEADERS(com_err.h)
3706 AC_SUBST(COM_ERRLIB)
3712 AC_CHECK_HEADERS(valgrind/valgrind.h)
3714 AC_CHECK_FUNCS_ONCE(tzset)
3715 AC_MSG_CHECKING(whether localtime caches TZ)
3716 AC_CACHE_VAL(emacs_cv_localtime_cache,
3717 [if test x$ac_cv_func_tzset = xyes; then
3718 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3719 char TZ_GMT0[] = "TZ=GMT0";
3720 char TZ_PST8[] = "TZ=PST8";
3723 time_t now = time ((time_t *) 0);
3724 int hour_GMT0, hour_unset;
3725 if (putenv (TZ_GMT0) != 0)
3727 hour_GMT0 = localtime (&now)->tm_hour;
3729 hour_unset = localtime (&now)->tm_hour;
3730 if (putenv (TZ_PST8) != 0)
3732 if (localtime (&now)->tm_hour == hour_GMT0)
3735 if (localtime (&now)->tm_hour != hour_unset)
3738 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3739 [# If we have tzset, assume the worst when cross-compiling.
3740 emacs_cv_localtime_cache=yes])
3742 # If we lack tzset, report that localtime does not cache TZ,
3743 # since we can't invalidate the cache if we don't have tzset.
3744 emacs_cv_localtime_cache=no
3746 AC_MSG_RESULT($emacs_cv_localtime_cache)
3747 if test $emacs_cv_localtime_cache = yes; then
3748 AC_DEFINE(LOCALTIME_CACHE, 1,
3749 [Define to 1 if localtime caches TZ.])
3753 AC_CHECK_FUNC(socket, , ok_so_far=no)
3754 if test $ok_so_far = yes; then
3755 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3757 if test $ok_so_far = yes; then
3758 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3760 if test $ok_so_far = yes; then
3761 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3762 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3763 [Define to 1 if you have inet sockets.])
3766 dnl Check for a Solaris 2.4 vfork bug that Autoconf misses (through 2.69).
3767 dnl This can be removed once we assume Autoconf 2.70.
3769 *-solaris2.4 | *-solaris2.4.*)
3770 dnl Disable the Autoconf-generated vfork test.
3771 : ${ac_cv_func_vfork_works=no};;
3776 AC_CHECK_FUNCS(snprintf)
3778 dnl Check for glib. This differs from other library checks in that
3779 dnl Emacs need not link to glib unless some other library is already
3780 dnl linking to glib. Although glib provides no facilities that Emacs
3781 dnl needs for its own purposes, when glib is present Emacs needs to
3782 dnl use primitives like g_main_context_query to avoid clashing with
3783 dnl glib at a low level.
3785 dnl Check this late, since it depends on $GTK_CFLAGS etc.
3789 CFLAGS="$CFLAGS $GTK_CFLAGS $RSVG_CFLAGS $DBUS_CFLAGS $SETTINGS_CFLAGS"
3790 LIBS="$LIBS $GTK_LIBS $RSVG_LIBS $DBUS_LIBS $SETTINGS_LIBS"
3791 CFLAGS="$CFLAGS $GFILENOTIFY_CFLAGS"
3792 LIBS="$LIBS $GFILENOTIFY_LIBS"
3793 AC_MSG_CHECKING([whether GLib is linked in])
3794 AC_LINK_IFELSE([AC_LANG_PROGRAM(
3797 [[g_print ("Hello world");]])],
3800 AC_MSG_RESULT([$links_glib])
3801 if test "${links_glib}" = "yes"; then
3802 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
3803 if test "$HAVE_NS" = no;then
3811 dnl Adapted from Haible's version.
3812 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3813 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3814 [[char* cs = nl_langinfo(CODESET);]])],
3815 emacs_cv_langinfo_codeset=yes,
3816 emacs_cv_langinfo_codeset=no)
3818 if test $emacs_cv_langinfo_codeset = yes; then
3819 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3820 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3825 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3826 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3827 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3828 if test "$emacs_cv_c_restrict_arr" = yes; then
3829 AC_DEFINE(__restrict_arr, __restrict,
3830 [Define to compiler's equivalent of C99 restrict keyword in array
3831 declarations. Define as empty for no equivalent.])
3834 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3835 dnl how the tty code is related to POSIX and/or other versions of termios.
3836 dnl The following looks like a useful start.
3838 dnl AC_SYS_POSIX_TERMIOS
3839 dnl if test $ac_cv_sys_posix_termios = yes; then
3840 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3841 dnl and macros for terminal control.])
3842 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3845 dnl Turned on June 1996 supposing nobody will mind it.
3846 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
3847 if test "${opsys}" != "mingw32"; then
3848 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3849 in the full name stands for the login id.])
3852 dnl Everybody supports this, except MS.
3853 dnl Seems like the kind of thing we should be testing for, though.
3854 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3855 if test "${opsys}" != "mingw32"; then
3856 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3859 dnl Everybody supports this, except MS-DOS.
3860 dnl Seems like the kind of thing we should be testing for, though.
3861 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3862 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3863 4.2-compatible sockets.])
3865 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3867 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
3868 a null file, or a data sink.])
3869 if test "${opsys}" = "mingw32"; then
3870 AC_DEFINE(NULL_DEVICE, ["NUL:"])
3872 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
3875 if test "${opsys}" = "mingw32"; then
3880 AC_DEFINE_UNQUOTED(SEPCHAR, ['$SEPCHAR'], [Character that separates PATH elements.])
3881 dnl This is for MinGW, and is used in test/automated/Makefile.in.
3882 dnl The MSYS Bash has heuristics for replacing ':' with ';' when it
3883 dnl decides that a command-line argument to be passed to a MinGW program
3884 dnl is a PATH-style list of directories. But that heuristics plays it
3885 dnl safe, and only does the replacement when it is _absolutely_ sure it
3886 dnl sees a colon-separated list of file names; e.g. ":." is left alone,
3887 dnl which breaks in-tree builds. So we do this manually instead.
3888 dnl Note that we cannot rely on PATH_SEPARATOR, as that one will always
3889 dnl be computed as ':' in MSYS Bash.
3892 dnl Everybody supports this, except MS-DOS.
3893 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3895 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3898 AC_DEFINE(DIRECTORY_SEP, ['/'],
3899 [Character that separates directories in a file name.])
3901 if test "${opsys}" = "mingw32"; then
3902 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
3903 [Returns true if character is a device separator.])
3905 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
3906 [Returns true if character is a directory separator.])
3908 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
3909 [Returns true if character is any form of separator.])
3911 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
3912 [Returns true if character is a device separator.])
3914 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
3915 [Returns true if character is a directory separator.])
3917 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
3918 [Returns true if character is any form of separator.])
3921 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
3925 dnl Unfortunately without libXmu we cannot support EditRes.
3926 if test "x$ac_cv_search_XmuConvertStandardSelection" = xno; then
3927 AC_DEFINE(NO_EDITRES, 1)
3932 dnl Assar Westerlund <assar@sics.se> says this is necessary for
3933 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
3934 AC_DEFINE(NO_EDITRES, 1)
3940 irix6-5 | sol2* | unixware )
3941 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
3942 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
3943 dnl need the constant to dimension an array. So wire in the appropriate
3945 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
3949 emacs_broken_SIGIO=no
3952 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
3953 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
3954 hpux* | irix6-5 | openbsd | sol2* | unixware )
3955 emacs_broken_SIGIO=yes
3959 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
3960 dnl the way this system works, libc functions that return malloced
3961 dnl memory use the libc malloc implementation. Calling xfree or
3962 dnl xrealloc on the results of such functions results in a crash.
3964 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
3965 dnl but that does not currently work on this system.
3967 dnl It is possible to completely override the malloc implementation on
3968 dnl AIX, but that involves putting the malloc functions in a shared
3969 dnl library and setting the MALLOCTYPE environment variable to point to
3970 dnl that shared library.
3972 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
3973 dnl to avoid a crash just use the Emacs implementation for that function.
3975 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
3976 dnl of this file, so that we do not check for get_current_dir_name
3977 dnl on AIX. But that might be fragile if something else ends
3978 dnl up testing for get_current_dir_name as a dependency.
3979 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
3980 get_current_dir_name should not be used.])
3984 dnl Circumvent a bug in FreeBSD. In the following sequence of
3985 dnl writes/reads on a PTY, read(2) returns bogus data:
3987 dnl write(2) 1022 bytes
3988 dnl write(2) 954 bytes, get EAGAIN
3989 dnl read(2) 1024 bytes in process_read_output
3990 dnl read(2) 11 bytes in process_read_output
3992 dnl That is, read(2) returns more bytes than have ever been written
3993 dnl successfully. The 1033 bytes read are the 1022 bytes written
3994 dnl successfully after processing (for example with CRs added if the
3995 dnl terminal is set up that way which it is here). The same bytes will
3996 dnl be seen again in a later read(2), without the CRs.
3997 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
3998 work around an issue when reading from a PTY.])
4004 dnl FIXME Can't we test if this exists (eg /proc/$$)?
4005 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
4010 darwin | dragonfly | freebsd | netbsd | openbsd )
4011 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
4012 close a pty to make it a controlling terminal (it is already a
4013 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
4017 dnl FIXME Surely we can test for this rather than hard-code it.
4019 netbsd | openbsd) sound_device="/dev/audio" ;;
4020 *) sound_device="/dev/dsp" ;;
4024 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
4025 [Name of the default sound device.])
4028 dnl Emacs can read input using SIGIO and buffering characters itself,
4029 dnl or using CBREAK mode and making C-g cause SIGINT.
4030 dnl The choice is controlled by the variable interrupt_input.
4032 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
4034 dnl Emacs uses the presence of the USABLE_SIGIO macro
4035 dnl to indicate whether or not signal-driven I/O is possible. It uses
4036 dnl INTERRUPT_INPUT to decide whether to use it by default.
4038 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
4039 dnl CBREAK mode has two disadvantages
4040 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
4041 dnl I hear that in system V this problem does not exist.
4042 dnl 2) Control-G causes output to be discarded.
4043 dnl I do not know whether this can be fixed in system V.
4045 dnl Another method of doing input is planned but not implemented.
4046 dnl It would have Emacs fork off a separate process
4047 dnl to read the input and send it to the true Emacs process
4050 darwin | gnu-linux | gnu-kfreebsd )
4051 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
4056 dnl If the system's imake configuration file defines `NeedWidePrototypes'
4057 dnl as `NO', we must define NARROWPROTO manually. Such a define is
4058 dnl generated in the Makefile generated by `xmkmf'. If we don't define
4059 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
4060 dnl taking float or double parameters.
4062 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
4063 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
4064 file defines `NeedWidePrototypes' as `NO'.])
4069 dnl Used in process.c, this must be a loop, even if it only runs once.
4070 dnl (Except on SGI; see below. Take that, clarity and consistency!)
4071 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
4072 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
4073 dnl trying suffixes 0-16.
4074 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
4075 first PTY, if PTYs are supported.])
4076 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
4077 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
4078 end of a PTY, if non-standard.])
4079 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
4080 end of a PTY, if non-standard.])
4084 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4085 dnl You allocate a pty by opening /dev/ptc to get the master side.
4086 dnl To get the name of the slave side, you just ttyname() the master side.
4087 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4088 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4092 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4093 dnl multi-line AC_DEFINEs are hard. :(
4094 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)])
4095 AC_DEFINE(PTY_NAME_SPRINTF, [])
4096 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4099 dnl FIXME? Maybe use same as freebsd - see bug#12040.
4101 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4102 dnl Not used, because PTY_ITERATION is defined.
4103 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4104 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
4105 dnl But we don't have to block SIGCHLD because it is blocked in the
4106 dnl implementation of grantpt.
4107 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (false)])
4108 AC_DEFINE(PTY_NAME_SPRINTF, [])
4109 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4113 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4116 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd )
4118 if test "x$ac_cv_func_grantpt" = xyes; then
4119 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4120 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4121 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4122 dnl to prevent sigchld_handler from intercepting the child's death.
4123 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); }])
4124 dnl if HAVE_POSIX_OPENPT
4125 if test "x$ac_cv_func_posix_openpt" = xyes; then
4126 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (false)])
4127 AC_DEFINE(PTY_NAME_SPRINTF, [])
4129 elif test "x$ac_cv_func_getpt" = xyes; then
4130 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4131 AC_DEFINE(PTY_NAME_SPRINTF, [])
4133 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4136 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4141 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4142 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4143 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4147 dnl It looks like this cannot be right, because it is not a loop.
4148 dnl However, process.c actually does this:
4154 dnl which presumably makes it OK, since irix == sgi (?).
4155 dnl FIXME it seems like this special treatment is unnecessary?
4156 dnl Why can't irix use a single-trip loop like eg cygwin?
4157 AC_DEFINE(PTY_ITERATION, [])
4158 dnl Not used, because PTY_ITERATION is defined.
4159 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
4160 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); }])
4161 dnl No need to get the pty name at all.
4162 AC_DEFINE(PTY_NAME_SPRINTF, [])
4163 dnl No need to use sprintf to get the tty name--we get that from _getpty.
4164 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4168 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
4169 dnl from intercepting that death. If any child but grantpt's should die
4170 dnl within, it should be caught after sigrelse(2).
4171 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); }])
4175 dnl Comments are as per sol2*.
4176 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); }])
4183 dnl This change means that we don't loop through allocate_pty too
4184 dnl many times in the (rare) event of a failure.
4185 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4186 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4187 dnl Push various streams modules onto a PTY channel. Used in process.c.
4188 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.])
4193 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4194 "typing" a signal character on the pty.])
4197 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4198 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
4199 aix4-2 | cygwin | gnu | irix6-5 | dragonfly | freebsd | netbsd | openbsd | darwin )
4200 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4203 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4204 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4205 gnu-linux | gnu-kfreebsd )
4207 AC_MSG_CHECKING([for signals via characters])
4208 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4209 #include <linux/version.h>
4210 #if LINUX_VERSION_CODE < 0x20400
4211 # error "Linux version too old"
4213 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4215 AC_MSG_RESULT([$emacs_signals_via_chars])
4216 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4221 AH_TEMPLATE(TAB3, [Undocumented.])
4224 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4226 gnu | dragonfly | freebsd | netbsd | openbsd )
4227 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4228 AC_DEFINE(TAB3, OXTABS)
4231 gnu-linux | gnu-kfreebsd )
4232 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4236 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4237 [do { extern void *__libc_ia64_register_backing_store_base; __builtin_ia64_flushrs (); mark_memory (__libc_ia64_register_backing_store_base, __builtin_ia64_bsp ());} while (false)],
4238 [Mark a secondary stack, like the register stack on the ia64.]), [])
4242 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4243 run_time_remap; for HPUX.])
4248 dnl This won't be used automatically yet. We also need to know, at least,
4249 dnl that the stack is continuous.
4250 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4251 registers relevant for conservative garbage collection in the jmp_buf.])
4255 dnl Not all the architectures are tested, but there are Debian packages
4256 dnl for SCM and/or Guile on them, so the technique must work. See also
4257 dnl comments in alloc.c concerning setjmp and gcc.
4258 dnl Fixme: it's probably safe to just use the GCC conditional below.
4259 gnu-linux | gnu-kfreebsd )
4260 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4261 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4262 || defined __alpha__ || defined __mips__ || defined __s390__ \
4263 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4264 || defined __ia64__ || defined __sh__
4267 # error "setjmp not known to work on this arch"
4269 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4274 if test x$GCC = xyes; then
4275 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4276 AC_DEFINE(GC_SETJMP_WORKS, 1)
4279 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
4280 dragonfly | freebsd | netbsd | openbsd | irix6-5 | sol2* )
4281 AC_DEFINE(GC_SETJMP_WORKS, 1)
4286 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4287 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4290 [[#include <setjmp.h>
4292 # define _longjmp longjmp
4297 _longjmp (j, 1);]])],
4298 [emacs_cv_func__setjmp=yes],
4299 [emacs_cv_func__setjmp=no])])
4300 if test $emacs_cv_func__setjmp = yes; then
4301 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4303 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4306 [[#include <setjmp.h>
4309 if (! sigsetjmp (j, 1))
4310 siglongjmp (j, 1);]])],
4311 [emacs_cv_func_sigsetjmp=yes],
4312 [emacs_cv_func_sigsetjmp=no])])
4313 if test $emacs_cv_func_sigsetjmp = yes; then
4314 AC_DEFINE([HAVE_SIGSETJMP], 1,
4315 [Define to 1 if sigsetjmp and siglongjmp work.
4316 The value of this symbol is irrelevant if HAVE__SETJMP is defined.])
4322 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4323 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4324 dnl and this is all we need.
4325 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4332 dnl Used in xfaces.c.
4333 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4334 some systems, where it requires time.h.])
4339 dnl Define symbols to identify the version of Unix this is.
4340 dnl Define all the symbols that apply correctly.
4341 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4342 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4343 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4344 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4349 dnl This symbol should be defined on AIX Version 3 ???????
4350 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4352 # error "_AIX not defined"
4354 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4358 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4362 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
4363 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4364 dnl distinguish OS X from pure Darwin.
4365 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4368 gnu-linux | gnu-kfreebsd )
4370 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4375 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4380 AC_DEFINE(USG5_4, [])
4381 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4385 AC_DEFINE(DOS_NT, [])
4386 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4387 if test "x$ac_enable_checking" != "x" ; then
4388 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4394 AC_DEFINE(USG5_4, [])
4395 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4400 AC_DEFINE(USG5_4, [])
4404 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4407 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4408 emacs_cv_usable_FIONREAD=no
4412 emacs_cv_usable_FIONREAD=yes
4417 [AC_LANG_PROGRAM([[#include <sys/types.h>
4418 #include <sys/ioctl.h>
4420 # include <sys/filio.h>
4423 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4424 [emacs_cv_usable_FIONREAD=yes],
4425 [emacs_cv_usable_FIONREAD=no])
4428 if test $emacs_cv_usable_FIONREAD = yes; then
4429 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4431 if test $emacs_broken_SIGIO = no; then
4432 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4434 [AC_LANG_PROGRAM([[#include <fcntl.h>
4437 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4438 [emacs_cv_usable_SIGIO=yes],
4439 [emacs_cv_usable_SIGIO=no])],
4440 [emacs_cv_usable_SIGIO=yes],
4441 [emacs_cv_usable_SIGIO=no])
4442 if test $emacs_cv_usable_SIGIO = yes; then
4443 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4450 dnl Emacs supplies its own malloc, but glib calls posix_memalign,
4451 dnl and on Cygwin prior to version 1.7.24 that becomes the
4452 dnl Cygwin-supplied posix_memalign. As malloc is not the Cygwin
4453 dnl malloc, the Cygwin posix_memalign always returns ENOSYS. A
4454 dnl workaround is to set G_SLICE=always-malloc. This is no longer
4455 dnl needed starting with cygwin-1.7.24, and it is no longer
4456 dnl effective starting with glib-2.36. */
4458 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
4459 G_SLICE environment variable to "always-malloc" at startup.])
4463 dnl It works to open the pty's tty in the parent (Emacs), then
4464 dnl close and reopen it in the child.
4465 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4466 works to open a pty's tty in the parent process, then close and
4467 reopen it in the child.])
4471 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4472 use VSUSP instead of VSWTCH.])
4476 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4481 # Set up the CFLAGS for real compilation, so we can substitute it.
4482 CFLAGS="$REAL_CFLAGS"
4483 CPPFLAGS="$REAL_CPPFLAGS"
4486 ## Hack to detect a buggy GCC version.
4487 if test "x$GCC" = xyes \
4488 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4489 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4490 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4491 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4494 version=$PACKAGE_VERSION
4496 copyright="Copyright (C) 2014 Free Software Foundation, Inc."
4497 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4498 [Short copyright string for this version of Emacs.])
4501 ### Specify what sort of things we'll be editing into Makefile and config.h.
4502 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4504 AC_SUBST(configuration)
4509 AC_SUBST(exec_prefix)
4512 AC_SUBST(sharedstatedir)
4513 AC_SUBST(libexecdir)
4517 AC_SUBST(standardlisppath)
4518 AC_SUBST(locallisppath)
4520 AC_SUBST(x_default_search_path)
4522 AC_SUBST(archlibdir)
4527 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4528 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4529 ## end of LIBX_BASE, but nothing ever set it.
4530 AC_SUBST(LD_SWITCH_X_SITE)
4531 AC_SUBST(C_SWITCH_X_SITE)
4532 AC_SUBST(GNUSTEP_CFLAGS)
4534 ## Used in lwlib/Makefile.in.
4535 AC_SUBST(X_TOOLKIT_TYPE)
4537 AC_SUBST(ns_appbindir)
4538 AC_SUBST(ns_appresdir)
4540 AC_SUBST(GNU_OBJC_CFLAGS)
4541 AC_SUBST(OTHER_FILES)
4543 if test -n "${term_header}"; then
4544 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4545 [Define to the header for the built-in window system.])
4548 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4549 [Define to the canonical Emacs configuration name.])
4550 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4551 [Define to the options passed to configure.])
4552 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4553 define this to include extra configuration information.])
4557 AC_DEFINE(config_opsysfile, <ms-w32.h>, [])
4564 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4565 AC_DEFINE(HAVE_X_WINDOWS, 1,
4566 [Define to 1 if you want to use the X window system.])
4568 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4570 if test "$HAVE_XFT" = "yes"; then
4571 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4572 elif test "$HAVE_FREETYPE" = "yes"; then
4573 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4583 if test "${USE_X_TOOLKIT}" != "none" ; then
4585 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4586 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4587 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4588 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4589 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4593 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4594 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4598 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4599 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4600 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4604 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4605 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4608 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4611 AC_SUBST(WIDGET_OBJ)
4614 case "$USE_X_TOOLKIT" in
4615 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4616 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4617 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4619 AC_SUBST(TOOLKIT_LIBW)
4621 if test "${opsys}" != "mingw32"; then
4622 if test "$USE_X_TOOLKIT" = "none"; then
4623 LIBXT_OTHER="\$(LIBXSM)"
4625 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4628 AC_SUBST(LIBXT_OTHER)
4630 if test "${HAVE_X11}" = "yes" ; then
4631 AC_DEFINE(HAVE_X11, 1,
4632 [Define to 1 if you want to use version 11 of X windows.])
4633 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4637 AC_SUBST(LIBX_OTHER)
4639 if test "$HAVE_GTK" = yes || test "$HAVE_X11" != yes; then
4641 elif test "$USE_X_TOOLKIT" = none; then
4642 LIBXMENU='$(oldXMenudir)/libXMenu11.a'
4644 LIBXMENU='$(lwlibdir)/liblw.a'
4648 if test "${GNU_MALLOC}" = "yes" ; then
4649 AC_DEFINE(GNU_MALLOC, 1,
4650 [Define to 1 if you want to use the GNU memory allocator.])
4654 if test "${REL_ALLOC}" = "yes" ; then
4655 AC_DEFINE(REL_ALLOC, 1,
4656 [Define REL_ALLOC if you want to use the relocating allocator for
4659 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4661 AC_SUBST(RALLOC_OBJ)
4663 if test "$opsys" = "cygwin"; then
4664 CYGWIN_OBJ="sheap.o cygw32.o"
4665 ## Cygwin differs because of its unexec().
4667 POST_ALLOC_OBJ=lastfile.o
4668 elif test "$opsys" = "mingw32"; then
4671 POST_ALLOC_OBJ=lastfile.o
4674 PRE_ALLOC_OBJ=lastfile.o
4677 AC_SUBST(CYGWIN_OBJ)
4678 AC_SUBST(PRE_ALLOC_OBJ)
4679 AC_SUBST(POST_ALLOC_OBJ)
4681 dnl Call this 'FORTIFY_SOUR' so that it sorts before the 'FORTIFY_SOURCE'
4682 dnl verbatim defined above. The tricky name is apropos, as this hack
4683 dnl makes Fortify go sour!
4684 AH_VERBATIM([FORTIFY_SOUR],
4685 [/* Without the following workaround, Emacs runs slowly on OS X 10.8.
4686 The workaround disables some useful run-time checking, so it
4687 should be conditional to the platforms with the performance bug.
4688 Perhaps Apple will fix this some day; also see m4/extern-inline.m4. */
4689 #if defined __APPLE__ && defined __GNUC__
4690 # ifndef _DONT_USE_CTYPE_INLINE_
4691 # define _DONT_USE_CTYPE_INLINE_
4693 # ifndef _FORTIFY_SOURCE
4694 # define _FORTIFY_SOURCE 0
4699 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4700 # it temporarily reverts them to their pre-pkg-config values,
4701 # because gnulib needs to work with both src (which uses the
4702 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4703 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4704 # and it therefore needs to run in an environment where LIBS does not
4705 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4706 # for some package unrelated to lib-src.
4709 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4710 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4711 gl_ASSERT_NO_GNULIB_POSIXCHECK
4712 gl_ASSERT_NO_GNULIB_TESTS
4717 if test "${opsys}" = "mingw32"; then
4718 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I \${abs_top_srcdir}/nt/inc"
4719 # Remove unneeded switches from the value of CC that goes to Makefiles
4720 CC=`echo $CC | sed -e "s,$GCC_TEST_OPTIONS,,"`
4724 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4727 ## The -headerpad option tells ld (see man page) to leave room at the
4728 ## end of the header for adding load commands. Needed for dumping.
4729 ## 0x690 is the total size of 30 segment load commands (at 56
4730 ## each); under Cocoa 31 commands are required.
4731 if test "$HAVE_NS" = "yes"; then
4732 libs_nsgui="-framework AppKit"
4733 if test "$NS_IMPL_COCOA" = "yes"; then
4734 libs_nsgui="$libs_nsgui -framework IOKit"
4741 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4743 ## This is here because src/Makefile.in did some extra fiddling around
4744 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
4745 ## LD_SWITCH_SYSTEM_TEMACS instead,
4746 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4747 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4750 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4751 ## find X at run-time.
4752 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4753 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4754 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4755 ## had different values in configure (in ac_link) and src/Makefile.in.
4756 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4757 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4760 ## MinGW64 does not prepend an underscore to symbols, so we must
4761 ## pass a different -entry switch to linker. FIXME: It is better
4762 ## to make the entry points the same by changing unexw32.c.
4763 case "$canonical" in
4764 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4765 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4769 openbsd) LD_SWITCH_SYSTEM_TEMACS='-nopie' ;;
4771 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4774 if test x$ac_enable_profiling != x ; then
4776 *freebsd | gnu-linux) ;;
4777 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
4781 LD_SWITCH_SYSTEM_TEMACS="$LDFLAGS_NOCOMBRELOC $LD_SWITCH_SYSTEM_TEMACS"
4783 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4785 ## MinGW-specific post-link processing of temacs.
4786 TEMACS_POST_LINK=":"
4789 if test "${opsys}" = "mingw32"; then
4790 TEMACS_POST_LINK="\$(MINGW_TEMACS_POST_LINK)"
4791 ADDSECTION="../nt/addsection\$(EXEEXT)"
4792 ## Preload heap size of temacs.exe in MB.
4793 case "$canonical" in
4794 x86_64-*-*) EMACS_HEAPSIZE=42 ;;
4795 *) EMACS_HEAPSIZE=27 ;;
4799 AC_SUBST(ADDSECTION)
4800 AC_SUBST(TEMACS_POST_LINK)
4801 AC_SUBST(EMACS_HEAPSIZE)
4803 ## Common for all window systems
4804 if test "$window_system" != "none"; then
4805 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4806 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4809 AC_SUBST(WINDOW_SYSTEM_OBJ)
4811 AH_TOP([/* GNU Emacs site configuration template file.
4813 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2014
4814 Free Software Foundation, Inc.
4816 This file is part of GNU Emacs.
4818 GNU Emacs is free software: you can redistribute it and/or modify
4819 it under the terms of the GNU General Public License as published by
4820 the Free Software Foundation, either version 3 of the License, or
4821 (at your option) any later version.
4823 GNU Emacs is distributed in the hope that it will be useful,
4824 but WITHOUT ANY WARRANTY; without even the implied warranty of
4825 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4826 GNU General Public License for more details.
4828 You should have received a copy of the GNU General Public License
4829 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4832 /* No code in Emacs #includes config.h twice, but some bits of code
4833 intended to work with other packages as well (like gmalloc.c)
4834 think they can include it as many times as they like. */
4835 #ifndef EMACS_CONFIG_H
4836 #define EMACS_CONFIG_H
4839 AH_BOTTOM([#include <conf_post.h>
4841 #endif /* EMACS_CONFIG_H */
4850 #### Report on what we decided to do.
4851 #### Report GTK as a toolkit, even if it doesn't use Xt.
4852 #### It makes printing result more understandable as using GTK sets
4853 #### toolkit_scroll_bars to yes by default.
4854 if test "${HAVE_GTK}" = "yes"; then
4855 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
4858 if test $USE_ACL -ne 0; then
4859 ACL_SUMMARY="yes $LIB_ACL"
4865 Configured for \`${canonical}'.
4867 Where should the build process find the source code? ${srcdir}
4868 What compiler should emacs be built with? ${CC} ${CFLAGS}
4869 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4870 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4871 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4872 What window system should Emacs use? ${window_system}
4873 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4875 if test -n "${x_includes}"; then
4876 echo " Where do we find X Windows header files? ${x_includes}"
4878 echo " Where do we find X Windows header files? Standard dirs"
4880 if test -n "${x_libraries}"; then
4881 echo " Where do we find X Windows libraries? ${x_libraries}"
4883 echo " Where do we find X Windows libraries? Standard dirs"
4887 emacs_config_features=
4888 for opt in XAW3D XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS \
4889 GCONF GSETTINGS NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT \
4893 NOTIFY|ACL) eval val=\${${opt}_SUMMARY} ;;
4894 *) eval val=\${HAVE_$opt} ;;
4896 test x"$val" = xno && continue
4897 AS_VAR_APPEND([emacs_config_features], ["$optsep$opt"])
4900 AC_DEFINE_UNQUOTED(EMACS_CONFIG_FEATURES, "${emacs_config_features}",
4901 [Summary of some of the main features enabled by configure.])
4903 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4904 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4905 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4906 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4907 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4908 echo " Does Emacs use a png library? ${HAVE_PNG} $LIBPNG"
4909 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4910 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4912 echo " Does Emacs support sound? ${HAVE_SOUND}"
4914 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4915 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4916 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4917 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4918 echo " Does Emacs use a file notification library? ${NOTIFY_SUMMARY}"
4919 echo " Does Emacs use access control lists? ${ACL_SUMMARY}"
4920 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4921 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4922 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4924 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4925 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4926 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
4927 echo " Does Emacs use -lxft? ${HAVE_XFT}"
4928 echo " Does Emacs directly use zlib? ${HAVE_ZLIB}"
4930 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
4933 if test -n "${EMACSDATA}"; then
4934 echo " Environment variable EMACSDATA set to: $EMACSDATA"
4936 if test -n "${EMACSDOC}"; then
4937 echo " Environment variable EMACSDOC set to: $EMACSDOC"
4942 if test "$HAVE_NS" = "yes"; then
4944 echo "You must run \"${MAKE-make} install\" in order to test the built application.
4945 The installed application will go to nextstep/Emacs.app and can be
4946 run or moved from there."
4947 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
4948 echo "The application will be fully self-contained."
4950 echo "The lisp resources for the application will be installed under ${prefix}.
4951 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
4952 to run if these resources are not installed."
4957 if test "${opsys}" = "cygwin"; then
4959 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
4965 # Remove any trailing slashes in these variables.
4966 [test "${prefix}" != NONE &&
4967 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
4968 test "${exec_prefix}" != NONE &&
4969 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
4971 if test "$HAVE_NS" = "yes"; then
4972 if test "$NS_IMPL_GNUSTEP" = yes; then
4973 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
4974 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
4975 ns_check_file=Resources/Info-gnustep.plist
4977 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
4978 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
4979 ns_check_file=Contents/Info.plist
4981 AC_SUBST(ns_check_file)
4984 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
4985 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
4986 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
4987 dnl (else you get "no `Makefile.am' found for any configure output").
4988 dnl This will work, but you get a config.status that is not quite right
4989 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
4990 dnl That doesn't have any obvious consequences for Emacs, but on the whole
4991 dnl it seems better to just live with the duplication.
4992 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile nt/Makefile"
4994 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
4995 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
4996 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
4997 leim/Makefile nextstep/Makefile nt/Makefile])
4999 dnl test/ is not present in release tarfiles.
5000 opt_makefile=test/automated/Makefile
5002 if test -f "$srcdir/$opt_makefile.in"; then
5003 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
5004 dnl Again, it's best not to use a variable. Though you can add
5005 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
5006 AC_CONFIG_FILES([test/automated/Makefile])
5010 dnl The admin/ directory used to be excluded from tarfiles.
5011 if test -d $srcdir/admin; then
5012 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES admin/unidata/Makefile admin/grammars/Makefile"
5013 AC_CONFIG_FILES([admin/unidata/Makefile])
5014 AC_CONFIG_FILES([admin/grammars/Makefile])
5018 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
5020 AC_SUBST(SUBDIR_MAKEFILES_IN)
5022 dnl You might wonder (I did) why epaths.h is generated by running make,
5023 dnl rather than just letting configure generate it from epaths.in.
5024 dnl One reason is that the various paths are not fully expanded (see above);
5025 dnl eg gamedir=${prefix}/var/games/emacs.
5026 dnl Secondly, the GNU Coding standards require that one should be able
5027 dnl to run `make prefix=/some/where/else' and override the values set
5028 dnl by configure. This also explains the `move-if-change' test and
5029 dnl the use of force in the `epaths-force' rule in Makefile.in.
5030 AC_CONFIG_COMMANDS([src/epaths.h], [
5031 if test "${opsys}" = "mingw32"; then
5032 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
5034 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
5036 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
5038 dnl NB we have to cheat and use the ac_... version because abs_top_srcdir
5039 dnl is not yet set, sigh. Or we could use ../$srcdir/src/.gdbinit,
5041 AC_CONFIG_COMMANDS([src/.gdbinit], [
5042 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
5043 echo "source $ac_abs_top_srcdir/src/.gdbinit" > src/.gdbinit