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=$with_features])
294 ## For the times when you want to build Emacs but don't have
295 ## a suitable makeinfo, and can live without the manuals.
296 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
297 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
299 ## This might be a 'configure' arg.
300 AC_SUBST([ACLOCAL_PATH])
302 ## Makefile.in needs the cache file name.
305 ## This is an option because I do not know if all info/man support
306 ## compressed files, nor how to test if they do so.
307 OPTION_DEFAULT_ON([compress-install],
308 [don't compress some files (.el, .info, etc.) when installing. Equivalent to:
309 make GZIP_PROG= install])
311 AC_ARG_WITH(gameuser,dnl
312 [AS_HELP_STRING([--with-gameuser=USER],[user for shared game score files])])
313 test "X${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 Don't bother to test for C89.
674 AC_DEFUN([_AC_PROG_CC_C89], [$2])
676 dnl Sets GCC=yes if using gcc.
677 AC_PROG_CC([gcc cc cl clang "$XCRUN gcc" "$XCRUN clang"])
678 if test -n "$XCRUN"; then
679 AC_CHECK_PROGS(AR, [ar "$XCRUN ar"])
680 test -n "$AR" && export AR
683 dnl Emacs needs C99 or later.
688 if test x$GCC = xyes; then
689 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
691 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
694 dnl This is used in lib/Makefile.am to use nt/gnulib.mk, the
695 dnl alternative to lib/gnulib.mk, so as to avoid generating header files
696 dnl that clash with MinGW.
697 AM_CONDITIONAL([BUILDING_FOR_WINDOWSNT], [test "x$opsys" = "xmingw32"])
699 # Avoid gnulib's tests for -lcrypto, so that there's no static dependency on it.
700 AC_DEFUN([gl_CRYPTO_CHECK])
701 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
702 # as we don't use them.
703 AC_DEFUN([gl_FCNTL_O_FLAGS])
704 # Avoid gnulib's threadlib module, as we do threads our own way.
705 AC_DEFUN([gl_THREADLIB])
707 # Initialize gnulib right after choosing the compiler.
708 dnl Amongst other things, this sets AR and ARFLAGS.
711 if test "$ac_test_CFLAGS" != set; then
712 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
713 # if -g3 works and the user does not specify CFLAGS.
714 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
717 emacs_g3_CFLAGS='-g3';;
719 emacs_g3_CFLAGS='-g3 -O2';;
723 if test -n "$emacs_g3_CFLAGS"; then
724 emacs_save_CFLAGS=$CFLAGS
725 CFLAGS=$emacs_g3_CFLAGS
726 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
727 [emacs_cv_prog_cc_g3],
728 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
729 [emacs_cv_prog_cc_g3=yes],
730 [emacs_cv_prog_cc_g3=no])])
731 if test $emacs_cv_prog_cc_g3 != yes; then
732 CFLAGS=$emacs_save_CFLAGS
734 if test $opsys = mingw32; then
735 CFLAGS="$CFLAGS -gdwarf-2"
742 # No optimization flag was inferred for this non-GCC compiler.
743 # Try -O. This is needed for xlc on AIX; see Bug#14258.
744 emacs_save_CFLAGS=$CFLAGS
745 test -z "$CFLAGS" || CFLAGS="$CFLAGS "
747 AC_CACHE_CHECK([whether $CC accepts -O],
748 [emacs_cv_prog_cc_o],
749 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
750 [emacs_cv_prog_cc_o=yes],
751 [emacs_cv_prog_cc_o=no])])
752 if test $emacs_cv_prog_cc_o != yes; then
753 CFLAGS=$emacs_save_CFLAGS
758 AC_ARG_ENABLE([gcc-warnings],
759 [AS_HELP_STRING([--enable-gcc-warnings],
760 [turn on lots of GCC warnings/errors. This is intended for
761 developers, and may generate false alarms when used
762 with older or non-GNU development tools.])],
765 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
767 gl_gcc_warnings=$enableval],
771 # clang is unduly picky about some things.
772 AC_CACHE_CHECK([whether the compiler is clang], [emacs_cv_clang],
779 [emacs_cv_clang=yes],
780 [emacs_cv_clang=no])])
782 # When compiling with GCC, prefer -isystem to -I when including system
783 # include files, to avoid generating useless diagnostics for the files.
784 if test "$gl_gcc_warnings" != yes; then
786 if test "$emacs_cv_clang" = yes
788 # Turn off some warnings if supported.
789 gl_WARN_ADD([-Wno-switch])
790 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
791 gl_WARN_ADD([-Wno-pointer-sign])
796 # This, $nw, is the list of warnings we disable.
799 case $with_x_toolkit in
800 lucid | athena | motif)
801 # Old toolkits mishandle 'const'.
802 nw="$nw -Wwrite-strings"
805 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
808 AC_SUBST([WERROR_CFLAGS])
810 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
811 nw="$nw -Woverlength-strings" # Not a problem these days
812 nw="$nw -Wlogical-op" # any use of fwrite provokes this
813 nw="$nw -Wformat-nonliteral" # we do this a lot
814 nw="$nw -Wvla" # warnings in gettext.h
815 nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
816 nw="$nw -Wswitch-default" # Too many warnings for now
817 nw="$nw -Winline" # OK to ignore 'inline'
818 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
819 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
820 # signed overflow has undefined behavior
821 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
822 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
823 nw="$nw -Wbad-function-cast" # These casts are no worse than others.
825 # Emacs doesn't care about shadowing; see
826 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
829 # Emacs's use of alloca inhibits protecting the stack.
830 nw="$nw -Wstack-protector"
832 # The following line should be removable at some point.
833 nw="$nw -Wsuggest-attribute=pure"
835 # This part is merely for shortening the command line,
836 # since -Wno-FOO needs to be added below regardless.
837 nw="$nw -Wmissing-field-initializers"
839 nw="$nw -Wtype-limits"
840 nw="$nw -Wunused-parameter"
842 if test $emacs_cv_clang = yes; then
843 nw="$nw -Wcast-align"
846 gl_MANYWARN_ALL_GCC([ws])
847 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
851 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
852 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
853 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
854 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
855 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
856 gl_WARN_ADD([-Wno-format-nonliteral])
858 # In spite of excluding -Wlogical-op above, it is enabled, as of
859 # gcc 4.5.0 20090517.
860 gl_WARN_ADD([-Wno-logical-op])
862 # More things that clang is unduly picky about.
863 if test $emacs_cv_clang = yes; then
864 gl_WARN_ADD([-Wno-format-extra-args])
865 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
866 gl_WARN_ADD([-Wno-unused-command-line-argument])
867 gl_WARN_ADD([-Wno-unused-value])
870 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
871 AH_VERBATIM([FORTIFY_SOURCE],
872 [/* Enable compile-time and run-time bounds-checking, and some warnings,
873 without upsetting glibc 2.15+. */
874 #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
875 # define _FORTIFY_SOURCE 2
878 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
880 # We use a slightly smaller set of warning options for lib/.
881 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
883 nw="$nw -Wunused-macros"
885 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
886 AC_SUBST([GNULIB_WARN_CFLAGS])
896 AC_ARG_ENABLE(link-time-optimization,
897 [AS_HELP_STRING([--enable-link-time-optimization],
898 [build emacs with link-time optimization.
899 This is supported for gcc since 4.5.0 and clang.
900 Note that clang support is experimental - see INSTALL])],
901 if test "${enableval}" != "no"; then
903 if test $emacs_cv_clang = yes; then
904 AC_MSG_CHECKING([whether link-time optimization is supported by clang])
905 GOLD_PLUGIN=`$CC -print-file-name=LLVMgold.so 2>/dev/null`
906 if test -x "$GOLD_PLUGIN"; then
909 elif test x$GCC = xyes; then
910 AC_MSG_CHECKING([whether link-time optimization is supported by gcc])
911 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
912 if test x$CPUS != x; then
918 AC_MSG_ERROR([Link-time optimization is not supported with your compiler.])
920 if test -z "$LTO"; then
924 CFLAGS="$CFLAGS $LTO"
925 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
926 [ac_lto_supported=yes], [ac_lto_supported=no])
929 AC_MSG_RESULT([$ac_lto_supported])
930 if test "$ac_lto_supported" = "yes"; then
931 CFLAGS="$CFLAGS $LTO"
932 if test x$emacs_cv_clang = xyes; then
933 AC_MSG_WARN([Please read INSTALL before using link-time optimization with clang])
934 # WARNING: 'ar --plugin ...' doesn't work without
935 # command, so plugin name is appended to ARFLAGS.
936 ARFLAGS="cru --plugin $GOLD_PLUGIN"
937 RANLIB="$RANLIB --plugin $GOLD_PLUGIN"
942 dnl Some other nice autoconf tests.
943 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
946 dnl if test "x$RANLIB" = x; then
951 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
952 dnl can be made to directories. This is not relevant for our usage, and
953 dnl excludes some cases that work fine for us. Eg MS Windows or files
954 dnl hosted on AFS, both examples where simple links work, but links to
955 dnl directories fail. We use a cut-down version instead.
958 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
959 rm -f conf$$ conf$$.file
961 LN_S_FILEONLY='cp -p'
963 dnl On MinGW, ensure we will call the MSYS /bin/ln.exe, not some
964 dnl random program in the current directory.
965 if (echo >conf$$.file) 2>/dev/null; then
966 if ln -s conf$$.file conf$$ 2>/dev/null; then
967 if test "$opsys" = "mingw32"; then
968 LN_S_FILEONLY='/bin/ln -s'
970 LN_S_FILEONLY='ln -s'
972 elif ln conf$$.file conf$$ 2>/dev/null; then
973 if test "$opsys" = "mingw32"; then
974 LN_S_FILEONLY=/bin/ln
981 rm -f conf$$ conf$$.file
983 if test "$LN_S_FILEONLY" = "ln -s"; then
986 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
989 AC_SUBST(LN_S_FILEONLY)
992 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
993 dnl doesn't support links to directories, as in "ln file dir". But that
994 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
995 dnl executables at "make install" time.
996 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
997 dnl for more details.
998 if test "$opsys" = "mingw32"; then
1002 AC_PATH_PROG(INSTALL_INFO, install-info, :,
1003 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1004 dnl Don't use GZIP, which is used by gzip for additional parameters.
1005 AC_PATH_PROG(GZIP_PROG, gzip)
1007 test $with_compress_install != yes && test -n "$GZIP_PROG" && \
1008 GZIP_PROG=" # $GZIP_PROG # (disabled by configure --without-compress-install)"
1010 if test $opsys = gnu-linux; then
1011 AC_PATH_PROG(PAXCTL, paxctl,,
1012 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
1013 if test "X$PAXCTL" != X; then
1014 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
1015 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1016 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
1017 else AC_MSG_RESULT(no); PAXCTL=""; fi])
1020 if test "${SETFATTR+set}" != set; then
1021 AC_CACHE_CHECK([for setfattr],
1022 [emacs_cv_prog_setfattr],
1024 if (setfattr -n user.pax.flags conftest.tmp) >/dev/null 2>&1; then
1025 emacs_cv_prog_setfattr=yes
1027 emacs_cv_prog_setfattr=no
1029 if test "$emacs_cv_prog_setfattr" = yes; then
1035 AC_SUBST([SETFATTR])
1039 ## Need makeinfo >= 4.7 (?) to build the manuals.
1040 AC_PATH_PROG(MAKEINFO, makeinfo, no)
1041 dnl By this stage, configure has already checked for egrep and set EGREP,
1042 dnl or exited with an error if no egrep was found.
1043 if test "$MAKEINFO" != "no"; then
1045 $MAKEINFO --version 2> /dev/null |
1046 $EGREP 'texinfo[[^0-9]]*([[1-4]][[0-9]]+|[[5-9]]|4\.[[7-9]]|4\.[[1-6]][[0-9]]+)'
1052 ## Makeinfo is unusual. For a released Emacs, the manuals are
1053 ## pre-built, and not deleted by the normal clean rules. makeinfo is
1054 ## therefore in the category of "special tools" not normally required, which
1055 ## configure does not have to check for (eg autoconf itself).
1056 ## In a repository checkout on the other hand, the manuals are not included.
1057 ## So makeinfo is a requirement to build from the repository, and configure
1058 ## should test for it as it does for any other build requirement.
1059 ## We use the presence of $srcdir/info/emacs to distinguish a release,
1060 ## with pre-built manuals, from a repository checkout.
1063 if test "$MAKEINFO" = "no"; then
1065 if test "x${with_makeinfo}" = "xno"; then
1067 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
1068 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
1069 source tree does not seem to have pre-built manuals in the `info' directory.
1070 Either install a suitable version of makeinfo, or re-run configure
1071 with the `--without-makeinfo' option to build without the manuals.] )
1074 AC_SUBST(HAVE_MAKEINFO)
1076 dnl Just so that there is only a single place we need to edit.
1078 INFO_OPTS=--no-split
1082 if test $opsys = mingw32; then
1083 DOCMISC_W32=efaq-w32
1087 AC_SUBST(DOCMISC_W32)
1089 dnl Add our options to ac_link now, after it is set up.
1091 if test x$GCC = xyes; then
1092 test "x$GCC_LINK_TEST_OPTIONS" != x && \
1093 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1095 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
1096 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1099 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
1100 dnl If we can link with the flag, it shouldn't do any harm anyhow.
1101 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
1102 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
1103 dnl if not built to support GNU ld.
1105 dnl For a long time, -znocombreloc was added to LDFLAGS rather than
1106 dnl LD_SWITCH_SYSTEM_TEMACS. That is:
1107 dnl * inappropriate, as LDFLAGS is a user option but this is essential.
1108 dnl Eg "make LDFLAGS=... all" could run into problems,
1109 dnl http://bugs.debian.org/684788
1110 dnl * unnecessary, since temacs is the only thing that actually needs it.
1111 dnl Indeed this is where it was originally, prior to:
1112 dnl http://lists.gnu.org/archive/html/emacs-pretest-bug/2004-03/msg00170.html
1113 late_LDFLAGS="$LDFLAGS"
1114 if test x$GCC = xyes; then
1115 LDFLAGS_NOCOMBRELOC="-Wl,-znocombreloc"
1117 LDFLAGS_NOCOMBRELOC="-znocombreloc"
1120 LDFLAGS="$LDFLAGS $LDFLAGS_NOCOMBRELOC"
1122 AC_MSG_CHECKING([for -znocombreloc])
1123 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1124 [AC_MSG_RESULT(yes)],
1125 LDFLAGS_NOCOMBRELOC=
1126 [AC_MSG_RESULT(no)])
1128 LDFLAGS="$late_LDFLAGS"
1130 AC_CACHE_CHECK([whether addresses are sanitized],
1131 [emacs_cv_sanitize_address],
1134 [[#ifndef __has_feature
1135 #define __has_feature(f) 0
1137 #if defined __SANITIZE_ADDRESS__ || __has_feature (address_sanitizer)
1139 error "Addresses are not sanitized.";
1142 [emacs_cv_sanitize_address=yes],
1143 [emacs_cv_sanitize_address=no])])
1145 dnl The function dump-emacs will not be defined and temacs will do
1146 dnl (load "loadup") automatically unless told otherwise.
1147 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
1149 your-opsys-here) CANNOT_DUMP=yes ;;
1152 if test "$CANNOT_DUMP" = "yes"; then
1153 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1154 elif test "$emacs_cv_sanitize_address" = yes; then
1155 AC_MSG_WARN([[Addresses are sanitized; suggest CANNOT_DUMP=yes]])
1158 AC_SUBST(CANNOT_DUMP)
1161 UNEXEC_OBJ=unexelf.o
1163 # MSDOS uses unexcoff.o
1165 UNEXEC_OBJ=unexaix.o
1171 UNEXEC_OBJ=unexmacosx.o
1174 UNEXEC_OBJ=unexhp9k800.o
1177 UNEXEC_OBJ=unexw32.o
1180 # Use the Solaris dldump() function, called from unexsol.c, to dump
1181 # emacs, instead of the generic ELF dump code found in unexelf.c.
1182 # The resulting binary has a complete symbol table, and is better
1183 # for debugging and other observability tools (debuggers, pstack, etc).
1185 # If you encounter a problem using dldump(), please consider sending
1186 # a message to the OpenSolaris tools-linking mailing list:
1187 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1189 # It is likely that dldump() works with older Solaris too, but this has
1190 # not been tested, so for now this change is for Solaris 10 or newer.
1191 UNEXEC_OBJ=unexsol.o
1198 ## Let `ld' find image libs and similar things in /usr/local/lib.
1199 ## The system compiler, GCC, has apparently been modified to not
1200 ## look there, contrary to what a stock GCC would do.
1201 ### It's not our place to do this. See bug#10313#17.
1202 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1207 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1208 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1212 ### It's not our place to do this. See bug#10313#17.
1213 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1218 ## Han Boetes <han@boetes.org> says this is necessary,
1219 ## otherwise Emacs dumps core on elf systems.
1220 LD_SWITCH_SYSTEM="-Z"
1223 AC_SUBST(LD_SWITCH_SYSTEM)
1225 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1227 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1228 ## which has not been defined yet. When this was handled with cpp,
1229 ## it was expanded to null when configure sourced the s/*.h file.
1230 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1231 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1232 ## (or somesuch), but because it is supposed to go at the _front_
1233 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1234 ## Compare with the gnu-linux case below, which added to the end
1235 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1236 ## LD_SWITCH_SYSTEM_TEMACS.
1239 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1246 AC_CHECK_DECL([__ELF__])
1247 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1248 ## With ELF, make sure that all common symbols get allocated to in the
1249 ## data section. Otherwise, the dump of temacs may miss variables in
1250 ## the shared library that have been initialized. For example, with
1251 ## GNU libc, __malloc_initialized would normally be resolved to the
1252 ## shared library's .bss section, which is fatal.
1253 if test "x$GCC" = "xyes"; then
1254 C_SWITCH_MACHINE="-fno-common"
1256 AC_MSG_ERROR([Non-GCC compilers are not supported.])
1259 dnl This was the unexalpha.c case. Removed in 24.1, 2010-07-24,
1260 dnl albeit under the mistaken assumption that said file
1261 dnl was no longer used.
1262 AC_MSG_ERROR([Non-ELF systems are not supported since Emacs 24.1.])
1266 AC_SUBST(C_SWITCH_MACHINE)
1268 AC_SUBST(UNEXEC_OBJ)
1271 ## Some programs in src produce warnings saying certain subprograms
1272 ## are too complex and need a MAXMEM value greater than 2000 for
1273 ## additional optimization. --nils@exp-math.uni-essen.de
1274 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1275 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1276 if test "$opsys" = "mingw32"; then
1277 case "$canonical" in
1278 x86_64-*-mingw32) C_SWITCH_SYSTEM="-mtune=generic" ;;
1279 *) C_SWITCH_SYSTEM="-mtune=pentium4" ;;
1282 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1283 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1284 AC_SUBST(C_SWITCH_SYSTEM)
1289 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1290 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1292 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1294 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1296 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1298 ## Motif needs -lgen.
1299 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1302 AC_SUBST(LIBS_SYSTEM)
1304 ### Make sure subsequent tests use flags consistent with the build flags.
1306 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1307 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1309 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1312 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C99 or better.
1313 AC_DEFUN([AC_TYPE_SIZE_T])
1314 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1315 AC_DEFUN([AC_TYPE_UID_T])
1317 # sqrt and other floating-point functions such as fmod and frexp
1318 # are found in -lm on many systems.
1320 AC_SEARCH_LIBS([sqrt], [m])
1321 if test "X$LIBS" = "X$OLD_LIBS"; then
1324 LIB_MATH=$ac_cv_search_sqrt
1328 dnl Current possibilities handled by sed (aix4-2 -> aix,
1329 dnl gnu-linux -> gnu/linux, etc.):
1330 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1331 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1332 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1339 ## Adding -lm confuses the dynamic linker, so omit it.
1342 freebsd | dragonfly )
1343 SYSTEM_TYPE=berkeley-unix
1345 gnu-linux | gnu-kfreebsd )
1347 hpux10-20 | hpux11 )
1351 SYSTEM_TYPE=windows-nt
1353 dnl NB this may be adjusted below.
1355 SYSTEM_TYPE=berkeley-unix
1359 SYSTEM_TYPE=usg-unix-v
1365 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1366 [The type of system you are compiling for; sets `system-type'.])
1369 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1370 pre_PKG_CONFIG_LIBS=$LIBS
1372 PKG_PROG_PKG_CONFIG(0.9.0)
1374 dnl EMACS_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4)
1375 dnl acts like PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4,
1376 dnl HAVE_GSTUFF=yes, HAVE_GSTUFF=no) -- see pkg-config man page --
1377 dnl except that it postprocesses CFLAGS as needed for --enable-gcc-warnings.
1378 dnl EMACS_CHECK_MODULES accepts optional 3rd and 4th arguments that
1379 dnl can take the place of the default HAVE_GSTUFF=yes and HAVE_GSTUFF=no
1381 AC_DEFUN([EMACS_CHECK_MODULES],
1382 [PKG_CHECK_MODULES([$1], [$2],
1383 [$1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1384 m4_default([$3], [HAVE_$1=yes])],
1385 [m4_default([$4], [HAVE_$1=no])])])
1388 if test "${with_sound}" != "no"; then
1389 # Sound support for GNU/Linux, the free BSDs, and MinGW.
1390 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h],
1391 have_sound_header=yes, [], [
1393 #define WIN32_LEAN_AND_MEAN
1394 #include <windows.h>
1397 test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
1398 AC_MSG_ERROR([OSS sound support requested but not found.])
1400 if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
1401 # Emulation library used on NetBSD.
1402 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1403 test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
1404 AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
1405 dnl FIXME? If we did find ossaudio, should we set with_sound=bsd-ossaudio?
1406 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1410 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1412 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1413 EMACS_CHECK_MODULES([ALSA], [$ALSA_MODULES])
1414 if test $HAVE_ALSA = yes; then
1415 SAVE_CFLAGS="$CFLAGS"
1417 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1418 LIBS="$ALSA_LIBS $LIBS"
1419 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1420 emacs_alsa_normal=yes,
1421 emacs_alsa_normal=no)
1422 if test "$emacs_alsa_normal" != yes; then
1423 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1424 [[snd_lib_error_set_handler (0);]])],
1425 emacs_alsa_subdir=yes,
1426 emacs_alsa_subdir=no)
1427 if test "$emacs_alsa_subdir" != yes; then
1428 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1430 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1433 CFLAGS="$SAVE_CFLAGS"
1435 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1436 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1437 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1438 elif test "${with_sound}" = "alsa"; then
1439 AC_MSG_ERROR([ALSA sound support requested but not found.])
1441 fi dnl with_sound = alsa|yes
1443 dnl Define HAVE_SOUND if we have sound support. We know it works and
1444 dnl compiles only on the specified platforms. For others, it
1445 dnl probably doesn't make sense to try.
1446 dnl FIXME So surely we should bypass this whole section if not using
1447 dnl one of these platforms?
1448 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1450 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1451 dnl Adjust the --with-sound help text if you change this.
1452 gnu-linux|freebsd|netbsd|mingw32)
1453 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1459 AC_SUBST(CFLAGS_SOUND)
1462 dnl checks for header files
1463 AC_CHECK_HEADERS_ONCE(
1467 sys/utsname.h pwd.h utmp.h util.h)
1469 AC_MSG_CHECKING(if personality LINUX32 can be set)
1470 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1471 emacs_cv_personality_linux32=yes,
1472 emacs_cv_personality_linux32=no)
1473 AC_MSG_RESULT($emacs_cv_personality_linux32)
1475 if test $emacs_cv_personality_linux32 = yes; then
1476 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1477 [Define to 1 if personality LINUX32 can be set.])
1480 dnl On Solaris 8 there's a compilation warning for term.h because
1481 dnl it doesn't define `bool'.
1482 AC_CHECK_HEADERS(term.h, , , -)
1484 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1486 if test $ac_cv_have_decl_sys_siglist != yes; then
1487 # For Tru64, at least:
1488 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1493 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1494 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1495 #if HAVE_SYS_SOCKET_H
1496 #include <sys/socket.h>
1498 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1499 #if HAVE_SYS_SOCKET_H
1500 #include <sys/socket.h>
1502 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1503 #if HAVE_SYS_SOCKET_H
1504 #include <sys/socket.h>
1507 dnl checks for structure members
1508 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1509 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1510 struct ifreq.ifr_addr,
1511 struct ifreq.ifr_addr.sa_len], , ,
1512 [AC_INCLUDES_DEFAULT
1513 #if HAVE_SYS_SOCKET_H
1514 #include <sys/socket.h>
1520 dnl Check for endianness.
1521 dnl AC_C_BIGENDIAN is done by gnulib.
1523 dnl check for Make feature
1524 dnl AC_PROG_MAKE_SET is done by Automake.
1529 dnl check if we have GCC and autodepend is on.
1530 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1531 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1532 SAVE_CFLAGS="$CFLAGS"
1533 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1534 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1535 CFLAGS="$SAVE_CFLAGS"
1536 test -f deps.d || ac_enable_autodepend=no
1538 AC_MSG_RESULT([$ac_enable_autodepend])
1539 if test $ac_enable_autodepend = yes; then
1540 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1541 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1542 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1543 deps_frag=autodeps.mk
1546 deps_frag=$srcdir/src/$deps_frag
1549 AC_SUBST_FILE(deps_frag)
1552 lisp_frag=$srcdir/src/lisp.mk
1553 AC_SUBST_FILE(lisp_frag)
1556 dnl checks for operating system services
1557 AC_SYS_LONG_FILE_NAMES
1559 #### Choose a window system.
1561 ## We leave window_system equal to none if
1562 ## we end up building without one. Any new window system should
1563 ## set window_system to an appropriate value and add objects to
1564 ## window-system-specific substs.
1568 if test "$no_x" != yes; then
1572 LD_SWITCH_X_SITE_RPATH=
1573 if test "${x_libraries}" != NONE; then
1574 if test -n "${x_libraries}"; then
1575 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1576 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1578 x_default_search_path=""
1579 x_search_path=${x_libraries}
1580 if test -z "${x_search_path}"; then
1581 x_search_path=/usr/lib
1583 for x_library in `echo ${x_search_path}: | \
1584 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1586 ${x_library}/X11/%L/%T/%N%C%S:\
1587 ${x_library}/X11/%l/%T/%N%C%S:\
1588 ${x_library}/X11/%T/%N%C%S:\
1589 ${x_library}/X11/%L/%T/%N%S:\
1590 ${x_library}/X11/%l/%T/%N%S:\
1591 ${x_library}/X11/%T/%N%S"
1592 if test x"${x_default_search_path}" = x; then
1593 x_default_search_path=${x_search_path}
1595 x_default_search_path="${x_search_path}:${x_default_search_path}"
1599 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1601 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1602 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1605 if test x"${x_includes}" = x; then
1606 bitmapdir=/usr/include/X11/bitmaps
1608 # accumulate include directories that have X11 bitmap subdirectories
1610 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1611 if test -d "${bmd}/X11/bitmaps"; then
1612 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1614 if test -d "${bmd}/bitmaps"; then
1615 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1618 if test ${bmd_acc} != "dummyval"; then
1619 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1626 tmp_CPPFLAGS="$CPPFLAGS"
1627 tmp_CFLAGS="$CFLAGS"
1628 CPPFLAGS="$CPPFLAGS -x objective-c"
1629 CFLAGS="$CFLAGS -x objective-c"
1632 if test "${with_ns}" != no; then
1633 if test "${opsys}" = darwin; then
1635 ns_appdir=`pwd`/nextstep/Emacs.app
1636 ns_appbindir=${ns_appdir}/Contents/MacOS
1637 ns_appresdir=${ns_appdir}/Contents/Resources
1638 ns_appsrc=Cocoa/Emacs.base
1639 elif test -f $GNUSTEP_CONFIG_FILE; then
1641 ns_appdir=`pwd`/nextstep/Emacs.app
1642 ns_appbindir=${ns_appdir}
1643 ns_appresdir=${ns_appdir}/Resources
1644 ns_appsrc=GNUstep/Emacs.base
1645 dnl FIXME sourcing this several times in subshells seems inefficient.
1646 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1647 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1648 dnl I seemed to need these as well with GNUstep-startup 0.25.
1649 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1650 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1651 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1652 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1653 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1654 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1655 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1656 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1657 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1658 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1659 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1660 dnl If they had chosen to either define it or not, we could have
1661 dnl just used AC_CHECK_DECL here.
1662 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1663 emacs_cv_objc_exceptions,
1664 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1665 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1669 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1670 if test $emacs_cv_objc_exceptions = yes; then
1671 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1672 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1673 [Define if GNUstep uses ObjC exceptions.])
1674 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1678 dnl This is only used while we test the NS headers, it gets reset below.
1679 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1681 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1682 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1683 files are missing or cannot be compiled.])])
1686 if test "${NS_IMPL_COCOA}" = "yes"; then
1687 AC_MSG_CHECKING([for OSX 10.4 or newer])
1688 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1690 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1691 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
1694 error "OSX 10.4 or newer required";
1698 ns_osx_have_104=yes,
1700 AC_MSG_RESULT([$ns_osx_have_104])
1702 if test $ns_osx_have_104 = no; then
1703 AC_MSG_ERROR([`OSX 10.4 or newer is required']);
1705 AC_MSG_CHECKING([for OSX 10.5 or newer])
1706 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1708 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1709 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1050
1712 error "OSX 10.5 not found";
1716 ns_osx_have_105=yes,
1718 AC_MSG_RESULT([$ns_osx_have_105])
1719 if test $ns_osx_have_105 = yes; then
1720 macfont_file="macfont.o"
1723 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1725 ns_have_nsinteger=yes,
1726 ns_have_nsinteger=no)
1727 if test $ns_have_nsinteger = yes; then
1728 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1732 AC_SUBST(LIBS_GNUSTEP)
1734 INSTALL_ARCH_INDEP_EXTRA=install-etc
1735 ns_self_contained=no
1738 if test "${HAVE_NS}" = yes; then
1739 if test "$with_toolkit_scroll_bars" = "no"; then
1740 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1743 window_system=nextstep
1744 # set up packaging dirs
1745 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1746 ns_self_contained=yes
1747 prefix=${ns_appresdir}
1748 exec_prefix=${ns_appbindir}
1749 dnl This one isn't really used, only archlibdir is.
1750 libexecdir="\${ns_appbindir}/libexec"
1751 archlibdir="\${ns_appbindir}/libexec"
1752 etcdocdir="\${ns_appresdir}/etc"
1753 etcdir="\${ns_appresdir}/etc"
1754 dnl FIXME maybe set datarootdir instead.
1755 dnl That would also get applications, icons, man.
1756 infodir="\${ns_appresdir}/info"
1757 mandir="\${ns_appresdir}/man"
1758 lispdir="\${ns_appresdir}/lisp"
1759 INSTALL_ARCH_INDEP_EXTRA=
1762 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o $macfont_file"
1764 CFLAGS="$tmp_CFLAGS"
1765 CPPFLAGS="$tmp_CPPFLAGS"
1766 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1767 AC_SUBST(ns_self_contained)
1769 AC_SUBST(NS_OBJC_OBJ)
1780 if test "${with_w32}" != no; then
1783 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1784 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1785 cannot be found.])])
1788 ## Using --with-w32 with MinGW is a no-op, but we allow it.
1791 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
1796 if test "${opsys}" = "mingw32"; then
1797 AC_MSG_CHECKING([whether Windows API headers are recent enough])
1798 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1799 #include <windows.h>
1800 #include <usp10.h>]],
1801 [[PIMAGE_NT_HEADERS pHeader;
1802 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
1803 [emacs_cv_w32api=yes
1806 AC_MSG_RESULT($emacs_cv_w32api)
1807 if test "${emacs_cv_w32api}" = "no"; then
1808 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
1819 if test "${HAVE_W32}" = "yes"; then
1820 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1821 AC_CHECK_TOOL(WINDRES, [windres],
1822 [AC_MSG_ERROR([No resource compiler found.])])
1823 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1824 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1825 EMACSRES="emacs.res"
1826 case "$canonical" in
1827 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
1828 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
1830 if test "${opsys}" = "cygwin"; then
1831 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1832 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1833 # Tell the linker that emacs.res is an object (which we compile from
1834 # the rc file), not a linker script.
1835 W32_RES_LINK="-Wl,emacs.res"
1837 UPDATE_MANIFEST=update-game-score.exe.manifest
1838 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
1839 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
1840 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
1841 W32_RES_LINK="\$(EMACSRES)"
1842 CLIENTRES="emacsclient.res"
1843 CLIENTW="emacsclientw\$(EXEEXT)"
1844 FIRSTFILE_OBJ=firstfile.o
1847 LIBS_ECLIENT="-lcomctl32"
1848 LIB_WSOCK32="-lwsock32"
1849 NTLIB="ntlib.$ac_objext"
1850 XARGS_LIMIT="-s 10000"
1856 AC_SUBST(EMACS_MANIFEST)
1857 AC_SUBST(UPDATE_MANIFEST)
1860 AC_SUBST(W32_RES_LINK)
1861 AC_SUBST(FIRSTFILE_OBJ)
1864 AC_SUBST(LIBS_ECLIENT)
1865 AC_SUBST(LIB_WSOCK32)
1867 AC_SUBST(XARGS_LIMIT)
1869 if test "${HAVE_W32}" = "yes"; then
1874 ## $window_system is now set to the window system we will
1877 if test "$window_system" = none && test "$gl_gcc_warnings" = yes; then
1878 # Too many warnings for now.
1880 nw="$nw -Wsuggest-attribute=const"
1881 nw="$nw -Wsuggest-attribute=noreturn"
1882 gl_MANYWARN_COMPLEMENT([WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
1884 gl_WARN_ADD([-Wno-unused-variable])
1885 gl_WARN_ADD([-Wno-unused-but-set-variable])
1886 gl_WARN_ADD([-Wno-unused-but-set-parameter])
1894 case "${window_system}" in
1899 case "${with_x_toolkit}" in
1900 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1901 motif ) USE_X_TOOLKIT=MOTIF ;;
1903 term_header=gtkutil.h
1904 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1905 dnl USE_X_TOOLKIT is set.
1906 USE_X_TOOLKIT=none ;;
1907 gtk2 ) with_gtk2=yes
1908 term_header=gtkutil.h
1909 USE_X_TOOLKIT=none ;;
1910 gtk3 ) with_gtk3=yes
1911 term_header=gtkutil.h
1912 USE_X_TOOLKIT=none ;;
1913 no ) USE_X_TOOLKIT=none ;;
1914 dnl If user did not say whether to use a toolkit, make this decision later:
1915 dnl use the toolkit if we have gtk, or X11R5 or newer.
1916 * ) USE_X_TOOLKIT=maybe ;;
1920 term_header=nsterm.h
1923 term_header=w32term.h
1927 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1928 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1929 if test "$HAVE_XSERVER" = true ||
1930 test -n "$DISPLAY" ||
1931 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1932 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1933 were found. You should install the relevant development files for X
1934 and for the toolkit you want, such as Gtk+ or Motif. Also make
1935 sure you have development files for image handling, i.e.
1936 tiff, gif, jpeg, png and xpm.
1937 If you are sure you want Emacs compiled without X window support, pass
1943 # Does the opsystem file prohibit the use of the GNU malloc?
1944 # Assume not, until told otherwise.
1948 [whether malloc is Doug Lea style],
1949 [emacs_cv_var_doug_lea_malloc],
1950 [emacs_cv_var_doug_lea_malloc=no
1951 dnl Hooks do not work with address sanitization.
1952 if test "$emacs_cv_sanitize_address" != yes; then
1955 [[#include <malloc.h>
1956 static void hook (void) {}]],
1957 [[malloc_set_state (malloc_get_state ());
1958 __after_morecore_hook = hook;
1959 __malloc_initialize_hook = hook;]])],
1960 [emacs_cv_var_doug_lea_malloc=yes])])
1962 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1964 system_malloc=$emacs_cv_sanitize_address
1966 ## darwin ld insists on the use of malloc routines in the System framework.
1967 darwin|sol2-10) system_malloc=yes ;;
1971 if test "${system_malloc}" = "yes"; then
1972 AC_DEFINE([SYSTEM_MALLOC], 1,
1973 [Define to 1 to use the system memory allocator, even if it is not
1977 (The GNU allocators don't work with this system configuration.)"
1980 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1981 VMLIMIT_OBJ=vm-limit.o
1983 AC_CHECK_HEADERS([sys/vlimit.h])
1984 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
1987 [[extern char data_start[]; char ch;]],
1988 [[return data_start < &ch;]])],
1989 [emacs_cv_data_start=yes],
1990 [emacs_cv_data_start=no])])
1991 if test $emacs_cv_data_start = yes; then
1992 AC_DEFINE([HAVE_DATA_START], 1,
1993 [Define to 1 if data_start is the address of the start
1994 of the main data segment.])
1997 AC_SUBST(GMALLOC_OBJ)
1998 AC_SUBST(VMLIMIT_OBJ)
2000 if test "$doug_lea_malloc" = "yes" ; then
2001 if test "$GNU_MALLOC" = yes ; then
2003 (Using Doug Lea's new malloc from the GNU C Library.)"
2005 AC_DEFINE(DOUG_LEA_MALLOC, 1,
2006 [Define to 1 if the system memory allocator is Doug Lea style,
2007 with malloc hooks and malloc_set_state.])
2009 ## Use mmap directly for allocating larger buffers.
2010 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
2011 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
2012 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
2014 gnu*) REL_ALLOC=no ;;
2018 if test x"${REL_ALLOC}" = x; then
2019 REL_ALLOC=${GNU_MALLOC}
2022 use_mmap_for_buffers=no
2024 cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
2028 if test $use_mmap_for_buffers = yes; then
2029 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
2033 LIBS="$LIBS_SYSTEM $LIBS"
2035 dnl FIXME replace main with a function we actually want from this library.
2036 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
2038 dnl Check for the POSIX thread library.
2040 AC_CHECK_HEADERS_ONCE(pthread.h)
2041 if test "$ac_cv_header_pthread_h"; then
2042 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
2043 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
2044 dnl testing for pthread_kill if Emacs uses gmalloc.c.
2045 if test "$GMALLOC_OBJ" = gmalloc.o; then
2046 emacs_pthread_function=pthread_atfork
2048 emacs_pthread_function=pthread_kill
2051 AC_SEARCH_LIBS([$emacs_pthread_function], [pthread],
2052 [AC_DEFINE([HAVE_PTHREAD], [1],
2053 [Define to 1 if you have pthread (-lpthread).])])
2054 if test "X$LIBS" != "X$OLD_LIBS"; then
2055 eval LIB_PTHREAD=\$ac_cv_search_$emacs_pthread_function
2059 AC_SUBST([LIB_PTHREAD])
2061 dnl Check for need for bigtoc support on IBM AIX
2065 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
2067 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
2068 *) gdb_cv_bigtoc=-bbigtoc ;;
2071 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
2072 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
2077 # Change CFLAGS, CPPFLAGS, and LIBS temporarily so that C_SWITCH_X_SITE
2078 # is for the tests that follow. We set them back later on.
2080 REAL_CFLAGS="$CFLAGS"
2081 REAL_CPPFLAGS="$CPPFLAGS"
2084 if test "${HAVE_X11}" = "yes"; then
2085 DEFS="$C_SWITCH_X_SITE $DEFS"
2086 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2088 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2089 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2091 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2092 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2093 # but it's more convenient here to set LD_RUN_PATH since this
2094 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2095 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2096 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2100 if test "${opsys}" = "gnu-linux"; then
2101 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2102 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2103 [[XOpenDisplay ("foo");]])],
2104 [xgnu_linux_first_failure=no],
2105 [xgnu_linux_first_failure=yes])
2106 if test "${xgnu_linux_first_failure}" = "yes"; then
2107 OLD_CPPFLAGS="$CPPFLAGS"
2109 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2110 LIBS="$LIBS -b i486-linuxaout"
2111 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2112 [[XOpenDisplay ("foo");]])],
2113 [xgnu_linux_second_failure=no],
2114 [xgnu_linux_second_failure=yes])
2115 if test "${xgnu_linux_second_failure}" = "yes"; then
2116 # If we get the same failure with -b, there is no use adding -b.
2117 # So leave it out. This plays safe.
2120 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2121 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2124 CPPFLAGS=$OLD_CPPFLAGS
2131 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2132 # header files included from there.
2133 AC_MSG_CHECKING(for Xkb)
2134 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2135 #include <X11/XKBlib.h>]],
2136 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2137 emacs_xkb=yes, emacs_xkb=no)
2138 AC_MSG_RESULT($emacs_xkb)
2139 if test $emacs_xkb = yes; then
2140 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2143 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2144 XScreenNumberOfScreen)
2147 if test "${window_system}" = "x11"; then
2148 AC_MSG_CHECKING(X11 version 6)
2149 AC_CACHE_VAL(emacs_cv_x11_version_6,
2150 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2151 [[#if XlibSpecificationRelease < 6
2154 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2155 if test $emacs_cv_x11_version_6 = yes; then
2156 AC_MSG_RESULT(6 or newer)
2157 AC_DEFINE(HAVE_X11R6, 1,
2158 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2159 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2160 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2164 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2165 [Define if you have usable X11R6-style XIM support.])
2169 AC_MSG_RESULT(before 6)
2174 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
2176 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2177 if test "${with_rsvg}" != "no"; then
2178 RSVG_REQUIRED=2.11.0
2179 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2181 EMACS_CHECK_MODULES([RSVG], [$RSVG_MODULE])
2182 AC_SUBST(RSVG_CFLAGS)
2185 if test $HAVE_RSVG = yes; then
2186 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2187 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2188 # Windows loads librsvg dynamically
2189 if test "${opsys}" = "mingw32"; then
2197 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${HAVE_W32}" = "yes"; then
2198 if test "${with_imagemagick}" != "no"; then
2199 ## 6.3.5 is the earliest version known to work; see Bug#17339.
2200 ## 6.8.2 makes Emacs crash; see Bug#13867.
2201 IMAGEMAGICK_MODULE="Wand >= 6.3.5 Wand != 6.8.2"
2202 EMACS_CHECK_MODULES([IMAGEMAGICK], [$IMAGEMAGICK_MODULE])
2203 AC_SUBST(IMAGEMAGICK_CFLAGS)
2204 AC_SUBST(IMAGEMAGICK_LIBS)
2206 if test $HAVE_IMAGEMAGICK = yes; then
2207 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2210 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2211 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2212 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
2222 gtk_term_header=$term_header
2225 if test "${opsys}" != "mingw32"; then
2226 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2229 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2231 dnl Checks for libraries.
2232 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2233 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2234 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2235 AC_MSG_ERROR($GTK_PKG_ERRORS)
2237 if test "$pkg_check_gtk" = "yes"; then
2238 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2239 GTK_OBJ=emacsgtkfixed.o
2240 gtk_term_header=gtkutil.h
2241 USE_GTK_TOOLKIT="GTK3"
2242 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2243 AC_DEFINE([GDK_DISABLE_DEPRECATION_WARNINGS], [1],
2244 [Define to 1 to disable GTK+/GDK deprecation warnings.])
2245 AC_DEFINE([GLIB_DISABLE_DEPRECATION_WARNINGS], [1],
2246 [Define to 1 to disable Glib deprecation warnings.])
2250 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2254 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2257 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2259 dnl Checks for libraries.
2260 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2261 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2262 if test "$pkg_check_gtk" = "no" &&
2263 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2265 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2267 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2274 if test x"$pkg_check_gtk" = xyes; then
2277 CFLAGS="$CFLAGS $GTK_CFLAGS"
2278 LIBS="$GTK_LIBS $LIBS"
2279 dnl Try to compile a simple GTK program.
2280 AC_MSG_CHECKING([whether GTK compiles])
2284 [[/* Check the Gtk and Glib APIs. */
2285 #include <gtk/gtk.h>
2286 #include <glib-object.h>
2288 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2292 GtkSettings *gs = 0;
2293 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2294 strict C prohibits this. Use gtk_main_iteration to test that the
2295 libraries are there. */
2296 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2297 0, 0, 0, G_CALLBACK (callback), 0))
2298 gtk_main_iteration ();
2301 AC_MSG_RESULT([$GTK_COMPILES])
2302 if test "${GTK_COMPILES}" != "yes"; then
2304 if test "$USE_X_TOOLKIT" != "maybe"; then
2305 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2308 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2310 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2311 GTK_OBJ="gtkutil.o $GTK_OBJ"
2312 term_header=$gtk_term_header
2314 if "$PKG_CONFIG" --atleast-version=2.10 gtk+-2.0; then
2317 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2318 closing open displays. This is no problem if you just use
2319 one display, but if you use more than one and close one of them
2329 if test "${HAVE_GTK}" = "yes"; then
2331 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2332 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2333 if test "$with_toolkit_scroll_bars" != no; then
2334 with_toolkit_scroll_bars=yes
2337 dnl Check if we have the old file selection dialog declared and
2338 dnl in the link library. In 2.x it may be in the library,
2339 dnl but not declared if deprecated featured has been selected out.
2340 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2341 HAVE_GTK_FILE_SELECTION=no
2342 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2343 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2344 #include <gtk/gtk.h>])
2345 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2346 AC_CHECK_FUNCS(gtk_file_selection_new)
2349 dnl Same as above for gtk_handle_box.
2350 HAVE_GTK_HANDLE_BOX=no
2351 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2352 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2353 #include <gtk/gtk.h>])
2354 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2355 AC_CHECK_FUNCS(gtk_handle_box_new)
2358 dnl Same as above for gtk_tearoff_menu_item.
2359 HAVE_GTK_TEAROFF_MENU_ITEM=no
2360 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2361 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2362 #include <gtk/gtk.h>])
2363 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2364 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2367 dnl Check for functions introduced in 2.14 and later.
2368 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2369 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2370 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2371 gtk_orientable_set_orientation \
2372 gtk_window_set_has_resize_grip)
2374 term_header=gtkutil.h
2380 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2381 dnl other platforms.
2384 if test "${with_dbus}" = "yes"; then
2385 EMACS_CHECK_MODULES([DBUS], [dbus-1 >= 1.0])
2386 if test "$HAVE_DBUS" = yes; then
2387 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2388 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2389 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2392 LIBS="$LIBS $DBUS_LIBS"
2393 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2394 dbus_type_is_valid \
2395 dbus_validate_bus_name \
2396 dbus_validate_path \
2397 dbus_validate_interface \
2398 dbus_validate_member)
2403 AC_SUBST(DBUS_CFLAGS)
2407 dnl GSettings has been tested under GNU/Linux only.
2409 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2410 EMACS_CHECK_MODULES([GSETTINGS], [gio-2.0 >= 2.26])
2411 if test "$HAVE_GSETTINGS" = "yes"; then
2413 CFLAGS="$CFLAGS $GSETTINGS_CFLAGS"
2415 LIBS="$LIBS $GSETTINGS_LIBS"
2416 AC_MSG_CHECKING([whether GSettings is in gio])
2419 [[/* Check that gsettings really is present. */
2420 #include <glib-object.h>
2421 #include <gio/gio.h>
2424 GSettings *settings;
2425 GVariant *val = g_settings_get_value (settings, "");
2427 [], HAVE_GSETTINGS=no)
2428 AC_MSG_RESULT([$HAVE_GSETTINGS])
2430 if test "$HAVE_GSETTINGS" = "yes"; then
2431 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2432 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2433 SETTINGS_LIBS="$GSETTINGS_LIBS"
2440 dnl GConf has been tested under GNU/Linux only.
2441 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2443 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2444 EMACS_CHECK_MODULES([GCONF], [gconf-2.0 >= 2.13])
2445 if test "$HAVE_GCONF" = yes; then
2446 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2447 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2448 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2449 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2453 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2454 EMACS_CHECK_MODULES([GOBJECT], [gobject-2.0 >= 2.0])
2455 if test "$HAVE_GOBJECT" = "yes"; then
2456 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2457 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2459 SAVE_CFLAGS="$CFLAGS"
2461 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2462 LIBS="$SETTINGS_LIBS $LIBS"
2463 CFLAGS="$SAVE_CFLAGS"
2466 AC_SUBST(SETTINGS_CFLAGS)
2467 AC_SUBST(SETTINGS_LIBS)
2470 dnl SELinux is available for GNU/Linux only.
2473 if test "${with_selinux}" = "yes"; then
2474 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2475 if test "$HAVE_LIBSELINUX" = yes; then
2476 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2477 LIBSELINUX_LIBS=-lselinux
2480 AC_SUBST(LIBSELINUX_LIBS)
2484 if test "${with_gnutls}" = "yes" ; then
2485 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 3.0.0],
2486 [HAVE_GNUTLS3=yes], [HAVE_GNUTLS3=no])
2487 if test "${HAVE_GNUTLS3}" = "yes"; then
2488 AC_DEFINE(HAVE_GNUTLS3, 1, [Define if using GnuTLS v3.])
2491 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6],
2492 [HAVE_GNUTLS=yes], [HAVE_GNUTLS=no])
2494 if test "${HAVE_GNUTLS}" = "yes"; then
2495 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2498 # Windows loads GnuTLS dynamically
2499 if test "${opsys}" = "mingw32"; then
2504 AC_SUBST(LIBGNUTLS_LIBS)
2505 AC_SUBST(LIBGNUTLS_CFLAGS)
2510 dnl FIXME? Don't auto-detect on NS, but do allow someone to specify
2511 dnl a particular library. This doesn't make much sense?
2512 if test "${with_ns}" = yes && test ${with_file_notification} = yes; then
2513 with_file_notification=no
2516 dnl MS Windows native file monitor is available for mingw32 only.
2517 case $with_file_notification,$opsys in
2518 w32,* | yes,mingw32)
2519 AC_CHECK_HEADER(windows.h)
2520 if test "$ac_cv_header_windows_h" = yes ; then
2521 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2522 NOTIFY_OBJ=w32notify.o
2523 NOTIFY_SUMMARY="yes (w32)"
2527 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2528 dnl has been added in glib 2.24. It has been tested under
2529 dnl GNU/Linux only. We take precedence over inotify, but this makes
2530 dnl only sense when glib has been compiled with inotify support. How
2532 case $with_file_notification,$NOTIFY_OBJ in
2534 EMACS_CHECK_MODULES([GFILENOTIFY], [gio-2.0 >= 2.24])
2535 if test "$HAVE_GFILENOTIFY" = "yes"; then
2536 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2537 NOTIFY_OBJ=gfilenotify.o
2538 NOTIFY_SUMMARY="yes -lgio (gfile)"
2542 dnl inotify is only available on GNU/Linux.
2543 case $with_file_notification,$NOTIFY_OBJ in
2545 AC_CHECK_HEADER(sys/inotify.h)
2546 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2547 AC_CHECK_FUNC(inotify_init1)
2548 if test "$ac_cv_func_inotify_init1" = yes; then
2549 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2550 NOTIFY_OBJ=inotify.o
2551 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2556 case $with_file_notification,$NOTIFY_OBJ in
2557 yes,* | no,* | *,?*) ;;
2558 *) AC_MSG_ERROR([File notification `$with_file_notification' requested but requirements not found.]) ;;
2561 if test -n "$NOTIFY_OBJ"; then
2562 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2564 AC_SUBST(NOTIFY_OBJ)
2565 AC_SUBST(GFILENOTIFY_CFLAGS)
2566 AC_SUBST(GFILENOTIFY_LIBS)
2568 dnl Do not put whitespace before the #include statements below.
2569 dnl Older compilers (eg sunos4 cc) choke on it.
2572 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2573 if test "$with_xaw3d" != no; then
2574 AC_CACHE_VAL(emacs_cv_xaw3d,
2575 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2576 #include <X11/Intrinsic.h>
2577 #include <X11/Xaw3d/Simple.h>]],
2579 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2580 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2581 emacs_cv_xaw3d=no)])
2585 if test $emacs_cv_xaw3d = yes; then
2586 AC_MSG_CHECKING(for xaw3d)
2587 AC_MSG_RESULT([yes; using Lucid toolkit])
2591 AC_DEFINE(HAVE_XAW3D, 1,
2592 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2594 AC_MSG_CHECKING(for xaw3d)
2596 AC_MSG_CHECKING(for libXaw)
2597 AC_CACHE_VAL(emacs_cv_xaw,
2598 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2599 #include <X11/Intrinsic.h>
2600 #include <X11/Xaw/Simple.h>]],
2604 if test $emacs_cv_xaw = yes; then
2605 AC_MSG_RESULT([yes; using Lucid toolkit])
2608 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2609 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2611 AC_MSG_ERROR([No X toolkit could be found.
2612 If you are sure you want Emacs compiled without an X toolkit, pass
2614 to configure. Otherwise, install the development libraries for the toolkit
2615 that you want to use (e.g. Gtk+) and re-run configure.])
2620 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2624 if test "${USE_X_TOOLKIT}" != "none"; then
2625 AC_MSG_CHECKING(X11 toolkit version)
2626 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2627 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2628 [[#if XtSpecificationRelease < 6
2631 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2632 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2633 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2634 AC_MSG_RESULT(6 or newer)
2635 AC_DEFINE(HAVE_X11XTR6, 1,
2636 [Define to 1 if you have the X11R6 or newer version of Xt.])
2637 LIBXTR6="-lSM -lICE"
2639 ## Use libw.a along with X11R6 Xt.
2640 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2643 AC_MSG_RESULT(before 6)
2646 dnl If using toolkit, check whether libXmu.a exists.
2647 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2649 if test x$HAVE_X11XTR6 = xyes; then
2650 OTHERLIBS='-lXt -lSM -lICE'
2654 AC_SEARCH_LIBS([XmuConvertStandardSelection], [Xmu], [], [], [$OTHERLIBS])
2655 if test "X$LIBS" != "X$OLDLIBS"; then
2656 LIBXMU=$ac_cv_search_XmuConvertStandardSelection
2659 dnl ac_cv_search_XmuConvertStandardSelection is also referenced below.
2665 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2666 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2667 if test -d /usr/include/openmotif; then
2668 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2669 emacs_cv_openmotif=yes
2670 case "$canonical" in
2671 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2672 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2675 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2678 emacs_cv_openmotif=no
2680 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2681 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2682 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2685 Motif version prior to 2.1.
2687 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2688 if test $emacs_cv_motif_version_2_1 = yes; then
2689 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2690 if test x$emacs_cv_openmotif = xyes; then
2691 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2694 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2695 # We put this in CFLAGS temporarily to precede other -I options
2696 # that might be in CFLAGS temporarily.
2697 # We put this in CPPFLAGS where it precedes the other -I options.
2698 OLD_CPPFLAGS=$CPPFLAGS
2700 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2701 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2702 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2704 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2705 if test $emacs_cv_lesstif = yes; then
2706 # Make sure this -I option remains in CPPFLAGS after it is set
2707 # back to REAL_CPPFLAGS.
2708 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2709 # have those other -I options anyway. Ultimately, having this
2710 # directory ultimately in CPPFLAGS will be enough.
2711 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2712 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2715 CPPFLAGS=$OLD_CPPFLAGS
2718 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2719 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2722 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2723 dnl using Motif or Xaw3d is available, and unless
2724 dnl --with-toolkit-scroll-bars=no was specified.
2726 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2727 [Define to 1 if we should use toolkit scroll bars.])dnl
2728 USE_TOOLKIT_SCROLL_BARS=no
2729 if test "${with_toolkit_scroll_bars}" != "no"; then
2730 if test "${USE_X_TOOLKIT}" != "none"; then
2731 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2732 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2734 USE_TOOLKIT_SCROLL_BARS=yes
2735 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2736 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2737 USE_TOOLKIT_SCROLL_BARS=yes
2739 elif test "${HAVE_GTK}" = "yes"; then
2740 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2741 USE_TOOLKIT_SCROLL_BARS=yes
2742 elif test "${HAVE_NS}" = "yes"; then
2743 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2744 USE_TOOLKIT_SCROLL_BARS=yes
2745 elif test "${HAVE_W32}" = "yes"; then
2746 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2747 USE_TOOLKIT_SCROLL_BARS=yes
2751 dnl See if XIM is available.
2752 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2753 #include <X11/Xlib.h>
2754 #include <X11/Xresource.h>]],
2755 [[XIMProc callback;]])],
2757 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2760 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2762 if test "${with_xim}" != "no"; then
2763 AC_DEFINE(USE_XIM, 1,
2764 [Define to 1 if we should use XIM, if it is available.])
2768 if test "${HAVE_XIM}" != "no"; then
2770 if test "$GCC" = yes; then
2771 CFLAGS="$CFLAGS --pedantic-errors"
2773 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2774 #include <X11/Xlib.h>
2775 #include <X11/Xresource.h>]],
2781 XPointer *client_data;
2783 /* If we're not using GCC, it's probably not XFree86, and this is
2784 probably right, but we can't use something like --pedantic-errors. */
2785 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2786 char*, XIMProc, XPointer*);
2788 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2790 [emacs_cv_arg6_star=yes])
2791 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2792 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2793 either XPointer or XPointer*.])dnl
2794 if test "$emacs_cv_arg6_star" = yes; then
2795 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2797 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2802 ### Start of font-backend (under any platform) section.
2803 # (nothing here yet -- this is a placeholder)
2804 ### End of font-backend (under any platform) section.
2806 ### Start of font-backend (under X11) section.
2807 if test "${HAVE_X11}" = "yes"; then
2808 EMACS_CHECK_MODULES([FONTCONFIG], [fontconfig >= 2.2.0],
2809 [HAVE_FC=yes], [HAVE_FC=no])
2811 ## Use -lXft if available, unless `--with-xft=no'.
2813 if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2816 if test "x${with_xft}" != "xno"; then
2818 EMACS_CHECK_MODULES([XFT], [xft >= 0.13.0], [], [HAVE_XFT=no])
2819 ## Because xftfont.c uses XRenderQueryExtension, we also
2820 ## need to link to -lXrender.
2822 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2823 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2824 OLD_CPPFLAGS="$CPPFLAGS"
2825 OLD_CFLAGS="$CFLAGS"
2827 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2828 CFLAGS="$CFLAGS $XFT_CFLAGS"
2829 XFT_LIBS="-lXrender $XFT_LIBS"
2830 LIBS="$XFT_LIBS $LIBS"
2831 AC_CHECK_HEADER(X11/Xft/Xft.h,
2832 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
2833 [[#include <X11/X.h>]])
2835 if test "${HAVE_XFT}" = "yes"; then
2836 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2838 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2839 fi # "${HAVE_XFT}" = "yes"
2840 CPPFLAGS=$OLD_CPPFLAGS
2843 fi # "$HAVE_XFT" != no
2844 fi # "x${with_xft}" != "xno"
2846 ## We used to allow building with FreeType and without Xft.
2847 ## However, the ftx font backend driver is not in good shape.
2848 if test "$HAVE_XFT" != "yes"; then
2849 dnl For the "Does Emacs use" message at the end.
2853 dnl Strict linkers fail with
2854 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2855 dnl if -lfreetype is not specified.
2856 dnl The following is needed to set FREETYPE_LIBS.
2857 EMACS_CHECK_MODULES([FREETYPE], [freetype2])
2859 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2863 if test "${HAVE_FREETYPE}" = "yes"; then
2864 AC_DEFINE(HAVE_FREETYPE, 1,
2865 [Define to 1 if using the freetype and fontconfig libraries.])
2866 if test "${with_libotf}" != "no"; then
2867 EMACS_CHECK_MODULES([LIBOTF], [libotf])
2868 if test "$HAVE_LIBOTF" = "yes"; then
2869 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2870 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2871 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2872 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2873 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2874 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2875 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2879 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2880 dnl Does the new font backend require it, or can it work without it?
2884 if test "${HAVE_LIBOTF}" = yes; then
2885 if test "${with_m17n_flt}" != "no"; then
2886 EMACS_CHECK_MODULES([M17N_FLT], [m17n-flt])
2887 if test "$HAVE_M17N_FLT" = "yes"; then
2888 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2899 ### End of font-backend (under X11) section.
2901 AC_SUBST(FREETYPE_CFLAGS)
2902 AC_SUBST(FREETYPE_LIBS)
2903 AC_SUBST(FONTCONFIG_CFLAGS)
2904 AC_SUBST(FONTCONFIG_LIBS)
2905 AC_SUBST(LIBOTF_CFLAGS)
2906 AC_SUBST(LIBOTF_LIBS)
2907 AC_SUBST(M17N_FLT_CFLAGS)
2908 AC_SUBST(M17N_FLT_LIBS)
2910 ### Use -lXpm if available, unless `--with-xpm=no'.
2911 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
2914 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
2915 if test "${with_xpm}" != "no"; then
2916 SAVE_CPPFLAGS="$CPPFLAGS"
2917 SAVE_LDFLAGS="$LDFLAGS"
2918 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
2919 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
2920 AC_CHECK_HEADER(X11/xpm.h,
2921 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
2922 if test "${HAVE_XPM}" = "yes"; then
2923 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2924 AC_EGREP_CPP(no_return_alloc_pixels,
2925 [#include "X11/xpm.h"
2926 #ifndef XpmReturnAllocPixels
2927 no_return_alloc_pixels
2929 ], HAVE_XPM=no, HAVE_XPM=yes)
2931 if test "${HAVE_XPM}" = "yes"; then
2932 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
2936 CPPFLAGS="$SAVE_CPPFLAGS"
2937 LDFLAGS="$SAVE_LDFLAGS"
2942 if test "${HAVE_XPM}" = "yes"; then
2943 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2948 if test "${HAVE_X11}" = "yes"; then
2949 if test "${with_xpm}" != "no"; then
2950 AC_CHECK_HEADER(X11/xpm.h,
2951 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2952 if test "${HAVE_XPM}" = "yes"; then
2953 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2954 AC_EGREP_CPP(no_return_alloc_pixels,
2955 [#include "X11/xpm.h"
2956 #ifndef XpmReturnAllocPixels
2957 no_return_alloc_pixels
2959 ], HAVE_XPM=no, HAVE_XPM=yes)
2961 if test "${HAVE_XPM}" = "yes"; then
2969 if test "${HAVE_XPM}" = "yes"; then
2970 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2975 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
2976 ### slightly different requirements wrt image libraries (it doesn't
2977 ### use -lXpm because it loads the xpm shared library dynamically at
2979 if test "${opsys}" = "mingw32"; then
2980 if test "${with_xpm}" != "no"; then
2981 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
2985 if test "${HAVE_XPM}" = "yes"; then
2986 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2992 ### Use -ljpeg if available, unless `--with-jpeg=no'.
2993 ### mingw32 doesn't use -ljpeg, since it loads the library dynamically.
2996 if test "${opsys}" = "mingw32"; then
2997 if test "${with_jpeg}" != "no"; then
2998 dnl Checking for jpeglib.h can lose because of a redefinition of
3000 AC_CHECK_HEADER(jerror.h, HAVE_JPEG=yes, HAVE_JPEG=no)
3002 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
3003 if test "${HAVE_JPEG}" = "yes"; then
3004 AC_DEFINE(HAVE_JPEG)
3005 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
3006 [#include <jpeglib.h>
3007 version=JPEG_LIB_VERSION
3009 [AC_DEFINE(HAVE_JPEG)],
3010 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
3013 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3014 if test "${with_jpeg}" != "no"; then
3015 dnl Checking for jpeglib.h can lose because of a redefinition of
3017 AC_CHECK_HEADER(jerror.h,
3018 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
3021 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
3022 if test "${HAVE_JPEG}" = "yes"; then
3023 AC_DEFINE(HAVE_JPEG)
3024 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
3025 [#include <jpeglib.h>
3026 version=JPEG_LIB_VERSION
3028 [AC_DEFINE(HAVE_JPEG)],
3029 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
3032 if test "${HAVE_JPEG}" = "yes"; then
3040 if test "${with_zlib}" != "no"; then
3042 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
3044 case $ac_cv_search_inflateEnd in
3045 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3048 if test "${HAVE_ZLIB}" = "yes"; then
3049 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3050 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3051 if test "${opsys}" = "mingw32"; then
3057 ### Use -lpng if available, unless `--with-png=no'.
3061 if test "${NS_IMPL_COCOA}" = yes; then
3063 elif test "${with_png}" != no; then
3064 # mingw32 loads the library dynamically.
3065 if test "$opsys" = mingw32; then
3066 AC_CHECK_HEADER([png.h], [HAVE_PNG=yes])
3067 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3068 AC_MSG_CHECKING([for png])
3069 png_cflags=`(libpng-config --cflags) 2>&AS_MESSAGE_LOG_FD` &&
3070 png_libs=`(libpng-config --libs) 2>&AS_MESSAGE_LOG_FD` || {
3071 # libpng-config does not work; configure by hand.
3072 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
3073 # in /usr/include/libpng.
3074 if test -r /usr/include/libpng/png.h &&
3075 test ! -r /usr/include/png.h; then
3076 png_cflags=-I/usr/include/libpng
3084 CFLAGS="$CFLAGS $png_cflags"
3085 LIBS="$png_libs -lz -lm $LIBS"
3087 [AC_LANG_PROGRAM([[#include <png.h>]],
3088 [[return !png_get_channels (0, 0);]])],
3090 PNG_CFLAGS=`AS_ECHO(["$png_cflags"]) | sed -e "$edit_cflags"`
3092 # $LIBPNG requires explicit -lz in some cases.
3093 # We don't know what those cases are, exactly, so play it safe and
3094 # append -lz to any nonempty $LIBPNG, unless we're already using LIBZ.
3095 if test -n "$LIBPNG" && test -z "$LIBZ"; then
3096 LIBPNG="$LIBPNG -lz"
3100 AC_MSG_RESULT([$HAVE_PNG])
3103 if test $HAVE_PNG = yes; then
3104 AC_DEFINE([HAVE_PNG], [1], [Define to 1 if you have the png library.])
3107 CFLAGS="$CFLAGS $PNG_CFLAGS"
3108 AC_CHECK_DECL([png_longjmp],
3110 [AC_DEFINE([PNG_DEPSTRUCT], [],
3111 [Define to empty to suppress deprecation warnings when building
3112 with --enable-gcc-warnings and with libpng versions before 1.5,
3113 which lack png_longjmp.])],
3119 AC_SUBST(PNG_CFLAGS)
3121 ### Use -ltiff if available, unless `--with-tiff=no'.
3122 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3125 if test "${opsys}" = "mingw32"; then
3126 if test "${with_tiff}" != "no"; then
3127 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3129 if test "${HAVE_TIFF}" = "yes"; then
3130 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3132 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3133 if test "${with_tiff}" != "no"; then
3134 AC_CHECK_HEADER(tiffio.h,
3136 # At least one tiff package requires the jpeg library.
3137 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3138 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3141 if test "${HAVE_TIFF}" = "yes"; then
3142 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3143 dnl FIXME -lz -lm, as per libpng?
3149 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
3150 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3153 if test "${opsys}" = "mingw32"; then
3154 if test "${with_gif}" != "no"; then
3155 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3157 if test "${HAVE_GIF}" = "yes"; then
3158 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3160 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3161 || test "${HAVE_W32}" = "yes"; then
3162 AC_CHECK_HEADER(gif_lib.h,
3163 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3164 # Earlier versions can crash Emacs, but version 5.0 removes EGifPutExtensionLast.
3165 [AC_CHECK_LIB(gif, GifMakeMapObject, HAVE_GIF=yes,
3166 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])])
3168 if test "$HAVE_GIF" = yes; then
3170 elif test "$HAVE_GIF" = maybe; then
3171 # If gif_lib.h but no libgif, try libungif.
3172 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3173 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3176 if test "${HAVE_GIF}" = "yes"; then
3177 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3182 dnl Check for required libraries.
3183 if test "${HAVE_X11}" = "yes"; then
3186 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3187 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3188 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3189 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3190 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3191 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3192 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3193 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3194 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3195 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3197 if test "X${MISSING}" != X; then
3198 AC_MSG_ERROR([The following required libraries were not found:
3200 Maybe some development libraries/packages are missing?
3201 If you don't want to link with them give
3203 as options to configure])
3207 ### Use -lgpm if available, unless `--with-gpm=no'.
3210 if test "${with_gpm}" != "no"; then
3211 AC_CHECK_HEADER(gpm.h,
3212 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3214 if test "${HAVE_GPM}" = "yes"; then
3215 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3221 dnl Check for malloc/malloc.h on darwin
3222 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3225 ### Use NeXTstep API to implement GUI.
3226 if test "${HAVE_NS}" = "yes"; then
3227 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
3228 if test "${NS_IMPL_COCOA}" = "yes"; then
3229 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
3231 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3232 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3233 # See also .m.o rule in Makefile.in */
3234 # FIXME: are all these flags really needed? Document here why. */
3235 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3236 ## Extra CFLAGS applied to src/*.m files.
3237 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3242 ### Use session management (-lSM -lICE) if available
3245 if test "${HAVE_X11}" = "yes"; then
3246 AC_CHECK_HEADER(X11/SM/SMlib.h,
3247 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3249 if test "${HAVE_X_SM}" = "yes"; then
3250 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3256 ### Use XRandr (-lXrandr) if available
3258 if test "${HAVE_X11}" = "yes"; then
3259 XRANDR_REQUIRED=1.2.2
3260 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3261 EMACS_CHECK_MODULES([XRANDR], [$XRANDR_MODULES])
3262 if test $HAVE_XRANDR = no; then
3263 # Test old way in case pkg-config doesn't have it (older machines).
3264 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3265 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)])
3266 if test $HAVE_XRANDR = yes; then
3267 XRANDR_LIBS=-lXrandr
3270 if test $HAVE_XRANDR = yes; then
3271 SAVE_CFLAGS="$CFLAGS"
3273 CFLAGS="$XRANDR_CFLAGS $CFLAGS"
3274 LIBS="$XRANDR_LIBS $LIBS"
3275 AC_CHECK_FUNCS(XRRGetOutputPrimary XRRGetScreenResourcesCurrent)
3276 CFLAGS="$SAVE_CFLAGS"
3279 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3282 AC_SUBST(XRANDR_CFLAGS)
3283 AC_SUBST(XRANDR_LIBS)
3285 ### Use Xinerama (-lXinerama) if available
3287 if test "${HAVE_X11}" = "yes"; then
3288 XINERAMA_REQUIRED=1.0.2
3289 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3290 EMACS_CHECK_MODULES([XINERAMA], [$XINERAMA_MODULES])
3291 if test $HAVE_XINERAMA = no; then
3292 # Test old way in case pkg-config doesn't have it (older machines).
3293 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3294 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3295 if test $HAVE_XINERAMA = yes; then
3296 XINERAMA_LIBS=-lXinerama
3299 if test $HAVE_XINERAMA = yes; then
3300 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3303 AC_SUBST(XINERAMA_CFLAGS)
3304 AC_SUBST(XINERAMA_LIBS)
3306 ### Use Xfixes (-lXfixes) if available
3308 if test "${HAVE_X11}" = "yes"; then
3309 XFIXES_REQUIRED=4.0.0
3310 XFIXES_MODULES="xfixes >= $XFIXES_REQUIRED"
3311 EMACS_CHECK_MODULES([XFIXES], [$XFIXES_MODULES])
3312 if test $HAVE_XFIXES = no; then
3313 # Test old way in case pkg-config doesn't have it (older machines).
3314 AC_CHECK_HEADER(X11/extensions/Xfixes.h,
3315 [AC_CHECK_LIB(Xfixes, XFixesHideCursor, HAVE_XFIXES=yes)])
3316 if test $HAVE_XFIXES = yes; then
3317 XFIXES_LIBS=-lXfixes
3320 if test $HAVE_XFIXES = yes; then
3321 AC_DEFINE(HAVE_XFIXES, 1, [Define to 1 if you have the Xfixes extension.])
3324 AC_SUBST(XFIXES_CFLAGS)
3325 AC_SUBST(XFIXES_LIBS)
3327 ### Use libxml (-lxml2) if available
3328 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3330 if test "${with_xml2}" != "no"; then
3331 ### I'm not sure what the version number should be, so I just guessed.
3332 EMACS_CHECK_MODULES([LIBXML2], [libxml-2.0 > 2.6.17])
3333 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3334 if test "${HAVE_LIBXML2}" != "yes" -a "$opsys" = "darwin"; then
3335 SAVE_CPPFLAGS="$CPPFLAGS"
3336 CPPFLAGS="$CPPFLAGS -I$xcsdkdir/usr/include/libxml2"
3337 AC_CHECK_HEADER(libxml/HTMLparser.h,
3338 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3339 [#include <libxml/HTMLparser.h>])])
3340 CPPFLAGS="$SAVE_CPPFLAGS"
3341 if test "${HAVE_LIBXML2}" = "yes"; then
3342 LIBXML2_CFLAGS="-I'$xcsdkdir/usr/include/libxml2'"
3343 LIBXML2_LIBS="-lxml2"
3346 if test "${HAVE_LIBXML2}" = "yes"; then
3347 if test "${opsys}" != "mingw32"; then
3348 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no
3353 if test "${HAVE_LIBXML2}" = "yes"; then
3354 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3361 AC_SUBST(LIBXML2_LIBS)
3362 AC_SUBST(LIBXML2_CFLAGS)
3364 # If netdb.h doesn't declare h_errno, we must declare it by hand.
3365 # On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
3366 if test "${opsys}" = "mingw32"; then
3367 emacs_cv_netdb_declares_h_errno=yes
3369 AC_CACHE_CHECK(whether netdb declares h_errno,
3370 emacs_cv_netdb_declares_h_errno,
3371 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
3372 [[return h_errno;]])],
3373 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
3374 if test $emacs_cv_netdb_declares_h_errno = yes; then
3375 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
3378 # Check for mail-locking functions in a "mail" library. Probably this should
3379 # have the same check as for liblockfile below.
3380 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
3381 if test $have_mail = yes; then
3383 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
3386 LIBS="$LIBS_MAIL $LIBS"
3387 AC_CHECK_FUNCS(touchlock)
3392 dnl Debian, at least:
3393 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
3394 if test $have_lockfile = yes; then
3395 LIBS_MAIL=-llockfile
3396 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
3398 # If we have the shared liblockfile, assume we must use it for mail
3399 # locking (e.g. Debian). If we couldn't link against liblockfile
3400 # (no liblockfile.a installed), ensure that we don't need to.
3401 dnl This works for files generally, not just executables.
3402 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3403 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
3404 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
3405 if test $ac_cv_prog_liblockfile = yes; then
3406 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3407 This probably means that movemail could lose mail.
3408 There may be a `development' package to install containing liblockfile.])
3411 AC_CHECK_HEADERS_ONCE(maillock.h)
3414 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3415 ## interlock access to the mail spool. The alternative is a lock file named
3416 ## /usr/spool/mail/$USER.lock.
3419 aix4-2) mail_lock="lockf" ;;
3421 gnu|freebsd|dragonfly|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
3423 ## On GNU/Linux systems, both methods are used by various mail programs.
3424 ## I assume most people are using newer mailers that have heard of flock.
3425 ## Change this if you need to.
3426 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
3427 ## configure gets the right answers, and that means *NOT* using flock.
3428 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3429 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
3430 ## Debian maintainer hasn't provided a clean fix for Emacs.
3431 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
3432 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3433 ## correct logic. -- fx
3434 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3435 ## liblockfile is a Free Software replacement for libmail, used on
3436 ## Debian systems and elsewhere. -rfr.
3439 if test $have_mail = yes || test $have_lockfile = yes; then
3440 test $ac_cv_header_maillock_h = yes && mail_lock=no
3445 mail_lock="none-needed" ;;
3449 case "$mail_lock" in
3450 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3452 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3456 *) BLESSMAIL_TARGET="need-blessmail" ;;
3458 AC_SUBST(BLESSMAIL_TARGET)
3461 LIBS="$LIB_MATH $LIBS"
3462 AC_CHECK_FUNCS(accept4 gethostname \
3463 getrusage get_current_dir_name \
3464 lrand48 random rint \
3465 select getpagesize setlocale \
3466 getrlimit setrlimit shutdown getaddrinfo \
3467 strsignal setitimer \
3468 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
3470 getpwent endpwent getgrent endgrent \
3471 cfmakeraw cfsetspeed copysign __executable_start log2)
3474 dnl No need to check for aligned_alloc and posix_memalign if using
3475 dnl gmalloc.o, as it supplies them. Don't use these functions on
3476 dnl Darwin as they are incompatible with unexmacosx.c.
3477 if test -z "$GMALLOC_OBJ" && test "$opsys" != darwin; then
3478 AC_CHECK_FUNCS([aligned_alloc posix_memalign], [break])
3481 dnl Cannot use AC_CHECK_FUNCS
3482 AC_CACHE_CHECK([for __builtin_unwind_init],
3483 emacs_cv_func___builtin_unwind_init,
3484 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3485 emacs_cv_func___builtin_unwind_init=yes,
3486 emacs_cv_func___builtin_unwind_init=no)])
3487 if test $emacs_cv_func___builtin_unwind_init = yes; then
3488 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3489 [Define to 1 if you have the `__builtin_unwind_init' function.])
3492 AC_CHECK_HEADERS_ONCE(sys/un.h)
3497 AC_CHECK_FUNCS(grantpt)
3499 # PTY-related GNU extensions.
3500 AC_CHECK_FUNCS(getpt posix_openpt)
3502 # Check this now, so that we will NOT find the above functions in ncurses.
3503 # That is because we have not set up to link ncurses in lib-src.
3504 # It's better to believe a function is not available
3505 # than to expect to find it in ncurses.
3506 # Also we need tputs and friends to be able to build at all.
3507 AC_MSG_CHECKING([for library containing tputs])
3508 # Run a test program that contains a call to tputs, a call that is
3509 # never executed. This tests whether a pre-'main' dynamic linker
3510 # works with the library. It's too much trouble to actually call
3511 # tputs in the test program, due to portability hassles. When
3512 # cross-compiling, assume the test program will run if it links.
3513 AC_DEFUN([tputs_link_source], [
3515 [[extern void tputs (const char *, int, int (*)(int));
3516 int main (int argc, char **argv)
3519 tputs (argv[0], 0, 0);
3523 if test "${opsys}" = "mingw32"; then
3526 # Maybe curses should be tried earlier?
3527 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3528 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3530 if test -z "$tputs_library"; then
3534 LIBS_TERMCAP=-l$tputs_library
3536 LIBS="$LIBS_TERMCAP $LIBS"
3538 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3539 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3541 if test "X$msg" != Xno; then
3546 AC_MSG_RESULT([$msg])
3547 if test "X$msg" = Xno; then
3548 AC_MSG_ERROR([The required function `tputs' was not found in any library.
3549 The following libraries were tried (in order):
3550 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3551 Please try installing whichever of these libraries is most appropriate
3552 for your system, together with its header files.
3553 For example, a libncurses-dev(el) or similar package.])
3556 ## Use termcap instead of terminfo?
3557 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3559 ## FIXME? In the cases below where we unconditionally set
3560 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3561 ## if that was found above to have tputs.
3562 ## Should we use the gnu* logic everywhere?
3564 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3565 ## The ncurses library has been moved out of the System framework in
3566 ## Mac OS X 10.2. So if configure detects it, set the command-line
3567 ## option to use it.
3568 darwin) LIBS_TERMCAP="-lncurses" ;;
3570 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3573 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3574 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3575 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3576 [[#if __FreeBSD_version < 400000
3579 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3581 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3583 if test $emacs_cv_freebsd_terminfo = yes; then
3584 LIBS_TERMCAP="-lncurses"
3587 LIBS_TERMCAP="-ltermcap"
3597 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3599 LIBS_TERMCAP="-ltermcap"
3603 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
3605 ## hpux: Make sure we get select from libc rather than from libcurses
3606 ## because libcurses on HPUX 10.10 has a broken version of select.
3607 ## We used to use -lc -lcurses, but this may be cleaner.
3608 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3609 # set that way, now it uses the default). Isn't this a contradiction?
3610 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3614 TERMCAP_OBJ=tparam.o
3615 if test $TERMINFO = yes; then
3616 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3617 TERMCAP_OBJ=terminfo.o
3619 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
3620 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
3622 AC_SUBST(LIBS_TERMCAP)
3623 AC_SUBST(TERMCAP_OBJ)
3626 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3627 # On Darwin, res_init appears not to be useful: see bug#562 and
3628 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3631 if test $opsys != darwin; then
3633 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3634 #include <arpa/nameser.h>
3635 #include <resolv.h>]],
3636 [[return res_init();]])],
3637 have_res_init=yes, have_res_init=no)
3638 if test "$have_res_init" = no; then
3640 LIBS="$LIBS -lresolv"
3641 AC_MSG_CHECKING(for res_init with -lresolv)
3642 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3643 #include <arpa/nameser.h>
3644 #include <resolv.h>]],
3645 [[return res_init();]])],
3646 have_res_init=yes, have_res_init=no)
3647 AC_MSG_RESULT($have_res_init)
3648 if test "$have_res_init" = yes ; then
3654 if test "$have_res_init" = yes; then
3655 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3659 # Do we need the Hesiod library to provide the support routines?
3660 dnl FIXME? Should we be skipping this on Darwin too?
3662 if test "$with_hesiod" != no ; then
3663 # Don't set $LIBS here -- see comments above. FIXME which comments?
3664 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3665 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3666 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3667 if test "$resolv" = yes ; then
3672 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3673 hesiod=yes, :, $RESOLVLIB)])
3675 if test x"$hesiod" = xyes; then
3681 # Do we need libresolv (due to res_init or Hesiod)?
3682 if test "$resolv" = yes && test $opsys != darwin; then
3689 # These tell us which Kerberos-related libraries to use.
3696 if test "${with_kerberos}" != no; then
3698 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3699 if test $have_com_err = yes; then
3700 COM_ERRLIB=-lcom_err
3701 LIBS="$COM_ERRLIB $LIBS"
3703 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3704 if test $have_crypto = yes; then
3706 LIBS="$CRYPTOLIB $LIBS"
3708 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3709 if test $have_k5crypto = yes; then
3710 CRYPTOLIB=-lk5crypto
3711 LIBS="$CRYPTOLIB $LIBS"
3713 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3714 if test $have_krb5=yes; then
3716 LIBS="$KRB5LIB $LIBS"
3718 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3719 if test "${with_kerberos5}" = no; then
3720 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3721 if test $have_des425 = yes; then
3723 LIBS="$DESLIB $LIBS"
3725 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3726 if test $have_des = yes; then
3728 LIBS="$DESLIB $LIBS"
3731 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3732 if test $have_krb4 = yes; then
3734 LIBS="$KRB4LIB $LIBS"
3736 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3737 if test $have_krb = yes; then
3739 LIBS="$KRB4LIB $LIBS"
3744 if test "${with_kerberos5}" != no; then
3745 AC_CHECK_HEADERS(krb5.h,
3746 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3747 [#include <krb5.h>])])
3749 AC_CHECK_HEADERS(krb.h,,
3750 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3751 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3753 AC_CHECK_HEADERS(com_err.h)
3757 AC_SUBST(COM_ERRLIB)
3763 AC_CHECK_HEADERS(valgrind/valgrind.h)
3765 AC_CHECK_FUNCS_ONCE(tzset)
3766 AC_MSG_CHECKING(whether localtime caches TZ)
3767 AC_CACHE_VAL(emacs_cv_localtime_cache,
3768 [if test x$ac_cv_func_tzset = xyes; then
3769 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3770 char TZ_GMT0[] = "TZ=GMT0";
3771 char TZ_PST8[] = "TZ=PST8";
3774 time_t now = time ((time_t *) 0);
3775 int hour_GMT0, hour_unset;
3776 if (putenv (TZ_GMT0) != 0)
3778 hour_GMT0 = localtime (&now)->tm_hour;
3780 hour_unset = localtime (&now)->tm_hour;
3781 if (putenv (TZ_PST8) != 0)
3783 if (localtime (&now)->tm_hour == hour_GMT0)
3786 if (localtime (&now)->tm_hour != hour_unset)
3789 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3790 [# If we have tzset, assume the worst when cross-compiling.
3791 emacs_cv_localtime_cache=yes])
3793 # If we lack tzset, report that localtime does not cache TZ,
3794 # since we can't invalidate the cache if we don't have tzset.
3795 emacs_cv_localtime_cache=no
3797 AC_MSG_RESULT($emacs_cv_localtime_cache)
3798 if test $emacs_cv_localtime_cache = yes; then
3799 AC_DEFINE(LOCALTIME_CACHE, 1,
3800 [Define to 1 if localtime caches TZ.])
3804 AC_CHECK_FUNC(socket, , ok_so_far=no)
3805 if test $ok_so_far = yes; then
3806 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3808 if test $ok_so_far = yes; then
3809 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3811 if test $ok_so_far = yes; then
3812 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3813 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3814 [Define to 1 if you have inet sockets.])
3817 dnl Check for a Solaris 2.4 vfork bug that Autoconf misses (through 2.69).
3818 dnl This can be removed once we assume Autoconf 2.70.
3820 *-solaris2.4 | *-solaris2.4.*)
3821 dnl Disable the Autoconf-generated vfork test.
3822 : ${ac_cv_func_vfork_works=no};;
3827 AC_CHECK_FUNCS(snprintf)
3829 dnl Check for glib. This differs from other library checks in that
3830 dnl Emacs need not link to glib unless some other library is already
3831 dnl linking to glib. Although glib provides no facilities that Emacs
3832 dnl needs for its own purposes, when glib is present Emacs needs to
3833 dnl use primitives like g_main_context_query to avoid clashing with
3834 dnl glib at a low level.
3836 dnl Check this late, since it depends on $GTK_CFLAGS etc.
3840 CFLAGS="$CFLAGS $GTK_CFLAGS $RSVG_CFLAGS $DBUS_CFLAGS $SETTINGS_CFLAGS"
3841 LIBS="$LIBS $GTK_LIBS $RSVG_LIBS $DBUS_LIBS $SETTINGS_LIBS"
3842 CFLAGS="$CFLAGS $GFILENOTIFY_CFLAGS"
3843 LIBS="$LIBS $GFILENOTIFY_LIBS"
3844 AC_MSG_CHECKING([whether GLib is linked in])
3845 AC_LINK_IFELSE([AC_LANG_PROGRAM(
3848 [[g_print ("Hello world");]])],
3851 AC_MSG_RESULT([$links_glib])
3852 if test "${links_glib}" = "yes"; then
3853 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
3854 if test "$HAVE_NS" = no;then
3862 dnl Adapted from Haible's version.
3863 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3864 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3865 [[char* cs = nl_langinfo(CODESET);]])],
3866 emacs_cv_langinfo_codeset=yes,
3867 emacs_cv_langinfo_codeset=no)
3869 if test $emacs_cv_langinfo_codeset = yes; then
3870 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3871 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3876 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3877 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3878 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3879 if test "$emacs_cv_c_restrict_arr" = yes; then
3880 AC_DEFINE(__restrict_arr, __restrict,
3881 [Define to compiler's equivalent of C99 restrict keyword in array
3882 declarations. Define as empty for no equivalent.])
3885 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3886 dnl how the tty code is related to POSIX and/or other versions of termios.
3887 dnl The following looks like a useful start.
3889 dnl AC_SYS_POSIX_TERMIOS
3890 dnl if test $ac_cv_sys_posix_termios = yes; then
3891 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3892 dnl and macros for terminal control.])
3893 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3896 dnl Turned on June 1996 supposing nobody will mind it.
3897 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
3898 if test "${opsys}" != "mingw32"; then
3899 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3900 in the full name stands for the login id.])
3903 dnl Everybody supports this, except MS.
3904 dnl Seems like the kind of thing we should be testing for, though.
3905 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3906 if test "${opsys}" != "mingw32"; then
3907 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3910 dnl Everybody supports this, except MS-DOS.
3911 dnl Seems like the kind of thing we should be testing for, though.
3912 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3913 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3914 4.2-compatible sockets.])
3916 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3918 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
3919 a null file, or a data sink.])
3920 if test "${opsys}" = "mingw32"; then
3921 AC_DEFINE(NULL_DEVICE, ["NUL:"])
3923 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
3926 if test "${opsys}" = "mingw32"; then
3931 AC_DEFINE_UNQUOTED(SEPCHAR, ['$SEPCHAR'], [Character that separates PATH elements.])
3932 dnl This is for MinGW, and is used in test/automated/Makefile.in.
3933 dnl The MSYS Bash has heuristics for replacing ':' with ';' when it
3934 dnl decides that a command-line argument to be passed to a MinGW program
3935 dnl is a PATH-style list of directories. But that heuristics plays it
3936 dnl safe, and only does the replacement when it is _absolutely_ sure it
3937 dnl sees a colon-separated list of file names; e.g. ":." is left alone,
3938 dnl which breaks in-tree builds. So we do this manually instead.
3939 dnl Note that we cannot rely on PATH_SEPARATOR, as that one will always
3940 dnl be computed as ':' in MSYS Bash.
3943 dnl Everybody supports this, except MS-DOS.
3944 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3946 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3949 AC_DEFINE(DIRECTORY_SEP, ['/'],
3950 [Character that separates directories in a file name.])
3952 if test "${opsys}" = "mingw32"; then
3953 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
3954 [Returns true if character is a device separator.])
3956 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
3957 [Returns true if character is a directory separator.])
3959 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
3960 [Returns true if character is any form of separator.])
3962 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
3963 [Returns true if character is a device separator.])
3965 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
3966 [Returns true if character is a directory separator.])
3968 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
3969 [Returns true if character is any form of separator.])
3972 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
3976 dnl Unfortunately without libXmu we cannot support EditRes.
3977 if test "x$ac_cv_search_XmuConvertStandardSelection" = xno; then
3978 AC_DEFINE(NO_EDITRES, 1)
3983 dnl Assar Westerlund <assar@sics.se> says this is necessary for
3984 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
3985 AC_DEFINE(NO_EDITRES, 1)
3991 irix6-5 | sol2* | unixware )
3992 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
3993 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
3994 dnl need the constant to dimension an array. So wire in the appropriate
3996 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
4000 emacs_broken_SIGIO=no
4003 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
4004 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
4005 hpux* | irix6-5 | openbsd | sol2* | unixware )
4006 emacs_broken_SIGIO=yes
4010 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
4011 dnl the way this system works, libc functions that return malloced
4012 dnl memory use the libc malloc implementation. Calling xfree or
4013 dnl xrealloc on the results of such functions results in a crash.
4015 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
4016 dnl but that does not currently work on this system.
4018 dnl It is possible to completely override the malloc implementation on
4019 dnl AIX, but that involves putting the malloc functions in a shared
4020 dnl library and setting the MALLOCTYPE environment variable to point to
4021 dnl that shared library.
4023 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
4024 dnl to avoid a crash just use the Emacs implementation for that function.
4026 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
4027 dnl of this file, so that we do not check for get_current_dir_name
4028 dnl on AIX. But that might be fragile if something else ends
4029 dnl up testing for get_current_dir_name as a dependency.
4030 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
4031 get_current_dir_name should not be used.])
4035 dnl Circumvent a bug in FreeBSD. In the following sequence of
4036 dnl writes/reads on a PTY, read(2) returns bogus data:
4038 dnl write(2) 1022 bytes
4039 dnl write(2) 954 bytes, get EAGAIN
4040 dnl read(2) 1024 bytes in process_read_output
4041 dnl read(2) 11 bytes in process_read_output
4043 dnl That is, read(2) returns more bytes than have ever been written
4044 dnl successfully. The 1033 bytes read are the 1022 bytes written
4045 dnl successfully after processing (for example with CRs added if the
4046 dnl terminal is set up that way which it is here). The same bytes will
4047 dnl be seen again in a later read(2), without the CRs.
4048 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
4049 work around an issue when reading from a PTY.])
4055 dnl FIXME Can't we test if this exists (eg /proc/$$)?
4056 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
4061 darwin | dragonfly | freebsd | netbsd | openbsd )
4062 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
4063 close a pty to make it a controlling terminal (it is already a
4064 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
4068 dnl FIXME Surely we can test for this rather than hard-code it.
4070 netbsd | openbsd) sound_device="/dev/audio" ;;
4071 *) sound_device="/dev/dsp" ;;
4075 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
4076 [Name of the default sound device.])
4079 dnl Emacs can read input using SIGIO and buffering characters itself,
4080 dnl or using CBREAK mode and making C-g cause SIGINT.
4081 dnl The choice is controlled by the variable interrupt_input.
4083 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
4085 dnl Emacs uses the presence of the USABLE_SIGIO macro
4086 dnl to indicate whether or not signal-driven I/O is possible. It uses
4087 dnl INTERRUPT_INPUT to decide whether to use it by default.
4089 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
4090 dnl CBREAK mode has two disadvantages
4091 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
4092 dnl I hear that in system V this problem does not exist.
4093 dnl 2) Control-G causes output to be discarded.
4094 dnl I do not know whether this can be fixed in system V.
4096 dnl Another method of doing input is planned but not implemented.
4097 dnl It would have Emacs fork off a separate process
4098 dnl to read the input and send it to the true Emacs process
4101 darwin | gnu-linux | gnu-kfreebsd )
4102 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
4107 dnl If the system's imake configuration file defines `NeedWidePrototypes'
4108 dnl as `NO', we must define NARROWPROTO manually. Such a define is
4109 dnl generated in the Makefile generated by `xmkmf'. If we don't define
4110 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
4111 dnl taking float or double parameters.
4113 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
4114 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
4115 file defines `NeedWidePrototypes' as `NO'.])
4120 dnl Used in process.c, this must be a loop, even if it only runs once.
4121 dnl (Except on SGI; see below. Take that, clarity and consistency!)
4122 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
4123 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
4124 dnl trying suffixes 0-16.
4125 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
4126 first PTY, if PTYs are supported.])
4127 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
4128 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
4129 end of a PTY, if non-standard.])
4130 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
4131 end of a PTY, if non-standard.])
4135 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4136 dnl You allocate a pty by opening /dev/ptc to get the master side.
4137 dnl To get the name of the slave side, you just ttyname() the master side.
4138 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4139 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4143 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4144 dnl multi-line AC_DEFINEs are hard. :(
4145 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)])
4146 AC_DEFINE(PTY_NAME_SPRINTF, [])
4147 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4150 dnl FIXME? Maybe use same as freebsd - see bug#12040.
4152 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4153 dnl Not used, because PTY_ITERATION is defined.
4154 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4155 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
4156 dnl But we don't have to block SIGCHLD because it is blocked in the
4157 dnl implementation of grantpt.
4158 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (false)])
4159 AC_DEFINE(PTY_NAME_SPRINTF, [])
4160 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4164 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4167 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd )
4169 if test "x$ac_cv_func_grantpt" = xyes; then
4170 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4171 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4172 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4173 dnl to prevent sigchld_handler from intercepting the child's death.
4174 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); }])
4175 dnl if HAVE_POSIX_OPENPT
4176 if test "x$ac_cv_func_posix_openpt" = xyes; then
4177 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (false)])
4178 AC_DEFINE(PTY_NAME_SPRINTF, [])
4180 elif test "x$ac_cv_func_getpt" = xyes; then
4181 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4182 AC_DEFINE(PTY_NAME_SPRINTF, [])
4184 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4187 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4192 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4193 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4194 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4198 dnl It looks like this cannot be right, because it is not a loop.
4199 dnl However, process.c actually does this:
4205 dnl which presumably makes it OK, since irix == sgi (?).
4206 dnl FIXME it seems like this special treatment is unnecessary?
4207 dnl Why can't irix use a single-trip loop like eg cygwin?
4208 AC_DEFINE(PTY_ITERATION, [])
4209 dnl Not used, because PTY_ITERATION is defined.
4210 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
4211 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); }])
4212 dnl No need to get the pty name at all.
4213 AC_DEFINE(PTY_NAME_SPRINTF, [])
4214 dnl No need to use sprintf to get the tty name--we get that from _getpty.
4215 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4219 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
4220 dnl from intercepting that death. If any child but grantpt's should die
4221 dnl within, it should be caught after sigrelse(2).
4222 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); }])
4226 dnl Comments are as per sol2*.
4227 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); }])
4234 dnl This change means that we don't loop through allocate_pty too
4235 dnl many times in the (rare) event of a failure.
4236 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4237 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4238 dnl Push various streams modules onto a PTY channel. Used in process.c.
4239 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.])
4244 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4245 "typing" a signal character on the pty.])
4248 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4249 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
4250 aix4-2 | cygwin | gnu | irix6-5 | dragonfly | freebsd | netbsd | openbsd | darwin )
4251 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4254 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4255 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4256 gnu-linux | gnu-kfreebsd )
4258 AC_MSG_CHECKING([for signals via characters])
4259 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4260 #include <linux/version.h>
4261 #if LINUX_VERSION_CODE < 0x20400
4262 # error "Linux version too old"
4264 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4266 AC_MSG_RESULT([$emacs_signals_via_chars])
4267 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4272 AH_TEMPLATE(TAB3, [Undocumented.])
4275 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4277 gnu | dragonfly | freebsd | netbsd | openbsd )
4278 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4279 AC_DEFINE(TAB3, OXTABS)
4282 gnu-linux | gnu-kfreebsd )
4283 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4287 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4288 [do { extern void *__libc_ia64_register_backing_store_base; __builtin_ia64_flushrs (); mark_memory (__libc_ia64_register_backing_store_base, __builtin_ia64_bsp ());} while (false)],
4289 [Mark a secondary stack, like the register stack on the ia64.]), [])
4293 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4294 run_time_remap; for HPUX.])
4299 dnl This won't be used automatically yet. We also need to know, at least,
4300 dnl that the stack is continuous.
4301 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4302 registers relevant for conservative garbage collection in the jmp_buf.])
4306 dnl Not all the architectures are tested, but there are Debian packages
4307 dnl for SCM and/or Guile on them, so the technique must work. See also
4308 dnl comments in alloc.c concerning setjmp and gcc.
4309 dnl Fixme: it's probably safe to just use the GCC conditional below.
4310 gnu-linux | gnu-kfreebsd )
4311 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4312 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4313 || defined __alpha__ || defined __mips__ || defined __s390__ \
4314 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4315 || defined __ia64__ || defined __sh__
4318 # error "setjmp not known to work on this arch"
4320 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4325 if test x$GCC = xyes; then
4326 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4327 AC_DEFINE(GC_SETJMP_WORKS, 1)
4330 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
4331 dragonfly | freebsd | netbsd | openbsd | irix6-5 | sol2* )
4332 AC_DEFINE(GC_SETJMP_WORKS, 1)
4337 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4338 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4341 [[#include <setjmp.h>
4343 # define _longjmp longjmp
4348 _longjmp (j, 1);]])],
4349 [emacs_cv_func__setjmp=yes],
4350 [emacs_cv_func__setjmp=no])])
4351 if test $emacs_cv_func__setjmp = yes; then
4352 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4354 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4357 [[#include <setjmp.h>
4360 if (! sigsetjmp (j, 1))
4361 siglongjmp (j, 1);]])],
4362 [emacs_cv_func_sigsetjmp=yes],
4363 [emacs_cv_func_sigsetjmp=no])])
4364 if test $emacs_cv_func_sigsetjmp = yes; then
4365 AC_DEFINE([HAVE_SIGSETJMP], 1,
4366 [Define to 1 if sigsetjmp and siglongjmp work.
4367 The value of this symbol is irrelevant if HAVE__SETJMP is defined.])
4373 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4374 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4375 dnl and this is all we need.
4376 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4383 dnl Used in xfaces.c.
4384 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4385 some systems, where it requires time.h.])
4390 dnl Define symbols to identify the version of Unix this is.
4391 dnl Define all the symbols that apply correctly.
4392 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4393 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4394 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4395 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4400 dnl This symbol should be defined on AIX Version 3 ???????
4401 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4403 # error "_AIX not defined"
4405 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4409 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4413 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
4414 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4415 dnl distinguish OS X from pure Darwin.
4416 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4419 gnu-linux | gnu-kfreebsd )
4421 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4426 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4431 AC_DEFINE(USG5_4, [])
4432 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4436 AC_DEFINE(DOS_NT, [])
4437 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4438 if test "x$ac_enable_checking" != "x" ; then
4439 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4445 AC_DEFINE(USG5_4, [])
4446 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4451 AC_DEFINE(USG5_4, [])
4455 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4458 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4459 emacs_cv_usable_FIONREAD=no
4463 emacs_cv_usable_FIONREAD=yes
4468 [AC_LANG_PROGRAM([[#include <sys/types.h>
4469 #include <sys/ioctl.h>
4471 # include <sys/filio.h>
4474 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4475 [emacs_cv_usable_FIONREAD=yes],
4476 [emacs_cv_usable_FIONREAD=no])
4479 if test $emacs_cv_usable_FIONREAD = yes; then
4480 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4482 if test $emacs_broken_SIGIO = no; then
4483 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4485 [AC_LANG_PROGRAM([[#include <fcntl.h>
4488 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4489 [emacs_cv_usable_SIGIO=yes],
4490 [emacs_cv_usable_SIGIO=no])],
4491 [emacs_cv_usable_SIGIO=yes],
4492 [emacs_cv_usable_SIGIO=no])
4493 if test $emacs_cv_usable_SIGIO = yes; then
4494 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4501 dnl Emacs supplies its own malloc, but glib calls posix_memalign,
4502 dnl and on Cygwin prior to version 1.7.24 that becomes the
4503 dnl Cygwin-supplied posix_memalign. As malloc is not the Cygwin
4504 dnl malloc, the Cygwin posix_memalign always returns ENOSYS. A
4505 dnl workaround is to set G_SLICE=always-malloc. This is no longer
4506 dnl needed starting with cygwin-1.7.24, and it is no longer
4507 dnl effective starting with glib-2.36. */
4509 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
4510 G_SLICE environment variable to "always-malloc" at startup.])
4514 dnl It works to open the pty's tty in the parent (Emacs), then
4515 dnl close and reopen it in the child.
4516 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4517 works to open a pty's tty in the parent process, then close and
4518 reopen it in the child.])
4522 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4523 use VSUSP instead of VSWTCH.])
4527 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4532 # Set up the CFLAGS for real compilation, so we can substitute it.
4533 CFLAGS="$REAL_CFLAGS"
4534 CPPFLAGS="$REAL_CPPFLAGS"
4537 ## Hack to detect a buggy GCC version.
4538 if test "x$GCC" = xyes \
4539 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4540 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4541 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4542 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4545 version=$PACKAGE_VERSION
4547 copyright="Copyright (C) 2014 Free Software Foundation, Inc."
4548 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4549 [Short copyright string for this version of Emacs.])
4552 ### Specify what sort of things we'll be editing into Makefile and config.h.
4553 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4555 AC_SUBST(configuration)
4560 AC_SUBST(exec_prefix)
4563 AC_SUBST(sharedstatedir)
4564 AC_SUBST(libexecdir)
4568 AC_SUBST(standardlisppath)
4569 AC_SUBST(locallisppath)
4571 AC_SUBST(x_default_search_path)
4573 AC_SUBST(archlibdir)
4578 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4579 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4580 ## end of LIBX_BASE, but nothing ever set it.
4581 AC_SUBST(LD_SWITCH_X_SITE)
4582 AC_SUBST(C_SWITCH_X_SITE)
4583 AC_SUBST(GNUSTEP_CFLAGS)
4585 ## Used in lwlib/Makefile.in.
4586 AC_SUBST(X_TOOLKIT_TYPE)
4588 AC_SUBST(ns_appbindir)
4589 AC_SUBST(ns_appresdir)
4591 AC_SUBST(GNU_OBJC_CFLAGS)
4592 AC_SUBST(OTHER_FILES)
4594 if test -n "${term_header}"; then
4595 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4596 [Define to the header for the built-in window system.])
4599 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4600 [Define to the canonical Emacs configuration name.])
4601 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4602 [Define to the options passed to configure.])
4603 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4604 define this to include extra configuration information.])
4608 AC_DEFINE(config_opsysfile, <ms-w32.h>, [])
4615 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4616 AC_DEFINE(HAVE_X_WINDOWS, 1,
4617 [Define to 1 if you want to use the X window system.])
4619 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4621 if test "$HAVE_XFT" = "yes"; then
4622 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4623 elif test "$HAVE_FREETYPE" = "yes"; then
4624 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4634 if test "${USE_X_TOOLKIT}" != "none" ; then
4636 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4637 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4638 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4639 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4640 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4644 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4645 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4649 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4650 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4651 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4655 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4656 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4659 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4662 AC_SUBST(WIDGET_OBJ)
4665 case "$USE_X_TOOLKIT" in
4666 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4667 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4668 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4670 AC_SUBST(TOOLKIT_LIBW)
4672 if test "${opsys}" != "mingw32"; then
4673 if test "$USE_X_TOOLKIT" = "none"; then
4674 LIBXT_OTHER="\$(LIBXSM)"
4676 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4679 AC_SUBST(LIBXT_OTHER)
4681 if test "${HAVE_X11}" = "yes" ; then
4682 AC_DEFINE(HAVE_X11, 1,
4683 [Define to 1 if you want to use version 11 of X windows.])
4684 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4688 AC_SUBST(LIBX_OTHER)
4690 if test "$HAVE_GTK" = yes || test "$HAVE_X11" != yes; then
4692 elif test "$USE_X_TOOLKIT" = none; then
4693 LIBXMENU='$(oldXMenudir)/libXMenu11.a'
4695 LIBXMENU='$(lwlibdir)/liblw.a'
4699 if test "${GNU_MALLOC}" = "yes" ; then
4700 AC_DEFINE(GNU_MALLOC, 1,
4701 [Define to 1 if you want to use the GNU memory allocator.])
4705 if test "${REL_ALLOC}" = "yes" ; then
4706 AC_DEFINE(REL_ALLOC, 1,
4707 [Define REL_ALLOC if you want to use the relocating allocator for
4710 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4712 AC_SUBST(RALLOC_OBJ)
4714 if test "$opsys" = "cygwin"; then
4715 CYGWIN_OBJ="sheap.o cygw32.o"
4716 ## Cygwin differs because of its unexec().
4718 POST_ALLOC_OBJ=lastfile.o
4719 elif test "$opsys" = "mingw32"; then
4722 POST_ALLOC_OBJ=lastfile.o
4725 PRE_ALLOC_OBJ=lastfile.o
4728 AC_SUBST(CYGWIN_OBJ)
4729 AC_SUBST(PRE_ALLOC_OBJ)
4730 AC_SUBST(POST_ALLOC_OBJ)
4732 dnl Call this 'FORTIFY_SOUR' so that it sorts before the 'FORTIFY_SOURCE'
4733 dnl verbatim defined above. The tricky name is apropos, as this hack
4734 dnl makes Fortify go sour!
4735 AH_VERBATIM([FORTIFY_SOUR],
4736 [/* Without the following workaround, Emacs runs slowly on OS X 10.8.
4737 The workaround disables some useful run-time checking, so it
4738 should be conditional to the platforms with the performance bug.
4739 Perhaps Apple will fix this some day; also see m4/extern-inline.m4. */
4740 #if defined __APPLE__ && defined __GNUC__
4741 # ifndef _DONT_USE_CTYPE_INLINE_
4742 # define _DONT_USE_CTYPE_INLINE_
4744 # ifndef _FORTIFY_SOURCE
4745 # define _FORTIFY_SOURCE 0
4750 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4751 # it temporarily reverts them to their pre-pkg-config values,
4752 # because gnulib needs to work with both src (which uses the
4753 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4754 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4755 # and it therefore needs to run in an environment where LIBS does not
4756 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4757 # for some package unrelated to lib-src.
4760 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4761 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4762 gl_ASSERT_NO_GNULIB_POSIXCHECK
4763 gl_ASSERT_NO_GNULIB_TESTS
4768 if test "${opsys}" = "mingw32"; then
4769 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I \${abs_top_srcdir}/nt/inc"
4770 # Remove unneeded switches from the value of CC that goes to Makefiles
4771 CC=`echo $CC | sed -e "s,$GCC_TEST_OPTIONS,,"`
4775 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4778 ## The -headerpad option tells ld (see man page) to leave room at the
4779 ## end of the header for adding load commands. Needed for dumping.
4780 ## 0x690 is the total size of 30 segment load commands (at 56
4781 ## each); under Cocoa 31 commands are required.
4782 if test "$HAVE_NS" = "yes"; then
4783 libs_nsgui="-framework AppKit"
4784 if test "$NS_IMPL_COCOA" = "yes"; then
4785 libs_nsgui="$libs_nsgui -framework IOKit"
4792 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4794 ## This is here because src/Makefile.in did some extra fiddling around
4795 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
4796 ## LD_SWITCH_SYSTEM_TEMACS instead,
4797 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4798 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4801 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4802 ## find X at run-time.
4803 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4804 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4805 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4806 ## had different values in configure (in ac_link) and src/Makefile.in.
4807 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4808 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4811 ## MinGW64 does not prepend an underscore to symbols, so we must
4812 ## pass a different -entry switch to linker. FIXME: It is better
4813 ## to make the entry points the same by changing unexw32.c.
4814 case "$canonical" in
4815 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4816 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4820 openbsd) LD_SWITCH_SYSTEM_TEMACS='-nopie' ;;
4822 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4825 if test x$ac_enable_profiling != x ; then
4827 *freebsd | gnu-linux) ;;
4828 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
4832 LD_SWITCH_SYSTEM_TEMACS="$LDFLAGS_NOCOMBRELOC $LD_SWITCH_SYSTEM_TEMACS"
4834 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4836 ## MinGW-specific post-link processing of temacs.
4837 TEMACS_POST_LINK=":"
4840 if test "${opsys}" = "mingw32"; then
4841 TEMACS_POST_LINK="\$(MINGW_TEMACS_POST_LINK)"
4842 ADDSECTION="../nt/addsection\$(EXEEXT)"
4843 ## Preload heap size of temacs.exe in MB.
4844 case "$canonical" in
4845 x86_64-*-*) EMACS_HEAPSIZE=42 ;;
4846 *) EMACS_HEAPSIZE=27 ;;
4850 AC_SUBST(ADDSECTION)
4851 AC_SUBST(TEMACS_POST_LINK)
4852 AC_SUBST(EMACS_HEAPSIZE)
4854 ## Common for all window systems
4855 if test "$window_system" != "none"; then
4856 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4857 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4860 AC_SUBST(WINDOW_SYSTEM_OBJ)
4862 AH_TOP([/* GNU Emacs site configuration template file.
4864 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2014
4865 Free Software Foundation, Inc.
4867 This file is part of GNU Emacs.
4869 GNU Emacs is free software: you can redistribute it and/or modify
4870 it under the terms of the GNU General Public License as published by
4871 the Free Software Foundation, either version 3 of the License, or
4872 (at your option) any later version.
4874 GNU Emacs is distributed in the hope that it will be useful,
4875 but WITHOUT ANY WARRANTY; without even the implied warranty of
4876 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4877 GNU General Public License for more details.
4879 You should have received a copy of the GNU General Public License
4880 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4883 /* No code in Emacs #includes config.h twice, but some bits of code
4884 intended to work with other packages as well (like gmalloc.c)
4885 think they can include it as many times as they like. */
4886 #ifndef EMACS_CONFIG_H
4887 #define EMACS_CONFIG_H
4890 AH_BOTTOM([#include <conf_post.h>
4892 #endif /* EMACS_CONFIG_H */
4901 #### Report on what we decided to do.
4902 #### Report GTK as a toolkit, even if it doesn't use Xt.
4903 #### It makes printing result more understandable as using GTK sets
4904 #### toolkit_scroll_bars to yes by default.
4905 if test "${HAVE_GTK}" = "yes"; then
4906 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
4909 if test $USE_ACL -ne 0; then
4910 ACL_SUMMARY="yes $LIB_ACL"
4916 Configured for \`${canonical}'.
4918 Where should the build process find the source code? ${srcdir}
4919 What compiler should emacs be built with? ${CC} ${CFLAGS}
4920 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4921 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4922 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4923 What window system should Emacs use? ${window_system}
4924 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4926 if test -n "${x_includes}"; then
4927 echo " Where do we find X Windows header files? ${x_includes}"
4929 echo " Where do we find X Windows header files? Standard dirs"
4931 if test -n "${x_libraries}"; then
4932 echo " Where do we find X Windows libraries? ${x_libraries}"
4934 echo " Where do we find X Windows libraries? Standard dirs"
4938 emacs_config_features=
4939 for opt in XAW3D XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS \
4940 GCONF GSETTINGS NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT \
4944 NOTIFY|ACL) eval val=\${${opt}_SUMMARY} ;;
4945 *) eval val=\${HAVE_$opt} ;;
4947 test x"$val" = xno && continue
4948 AS_VAR_APPEND([emacs_config_features], ["$optsep$opt"])
4951 AC_DEFINE_UNQUOTED(EMACS_CONFIG_FEATURES, "${emacs_config_features}",
4952 [Summary of some of the main features enabled by configure.])
4954 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4955 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4956 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4957 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4958 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4959 echo " Does Emacs use a png library? ${HAVE_PNG} $LIBPNG"
4960 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4961 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4963 echo " Does Emacs support sound? ${HAVE_SOUND}"
4965 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4966 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4967 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4968 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4969 echo " Does Emacs use a file notification library? ${NOTIFY_SUMMARY}"
4970 echo " Does Emacs use access control lists? ${ACL_SUMMARY}"
4971 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4972 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4973 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4975 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4976 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4977 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
4978 echo " Does Emacs use -lxft? ${HAVE_XFT}"
4979 echo " Does Emacs directly use zlib? ${HAVE_ZLIB}"
4981 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
4984 if test -n "${EMACSDATA}"; then
4985 echo " Environment variable EMACSDATA set to: $EMACSDATA"
4987 if test -n "${EMACSDOC}"; then
4988 echo " Environment variable EMACSDOC set to: $EMACSDOC"
4993 if test "$HAVE_NS" = "yes"; then
4995 echo "You must run \"${MAKE-make} install\" in order to test the built application.
4996 The installed application will go to nextstep/Emacs.app and can be
4997 run or moved from there."
4998 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
4999 echo "The application will be fully self-contained."
5001 echo "The lisp resources for the application will be installed under ${prefix}.
5002 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
5003 to run if these resources are not installed."
5008 if test "${opsys}" = "cygwin"; then
5010 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
5016 # Remove any trailing slashes in these variables.
5017 [test "${prefix}" != NONE &&
5018 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
5019 test "${exec_prefix}" != NONE &&
5020 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
5022 if test "$HAVE_NS" = "yes"; then
5023 if test "$NS_IMPL_GNUSTEP" = yes; then
5024 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
5025 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
5026 ns_check_file=Resources/Info-gnustep.plist
5028 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
5029 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
5030 ns_check_file=Contents/Info.plist
5032 AC_SUBST(ns_check_file)
5035 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
5036 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
5037 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
5038 dnl (else you get "no `Makefile.am' found for any configure output").
5039 dnl This will work, but you get a config.status that is not quite right
5040 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
5041 dnl That doesn't have any obvious consequences for Emacs, but on the whole
5042 dnl it seems better to just live with the duplication.
5043 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile nt/Makefile"
5045 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
5046 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
5047 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
5048 leim/Makefile nextstep/Makefile nt/Makefile])
5050 dnl test/ is not present in release tarfiles.
5051 opt_makefile=test/automated/Makefile
5053 if test -f "$srcdir/$opt_makefile.in"; then
5054 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
5055 dnl Again, it's best not to use a variable. Though you can add
5056 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
5057 AC_CONFIG_FILES([test/automated/Makefile])
5061 dnl The admin/ directory used to be excluded from tarfiles.
5062 if test -d $srcdir/admin; then
5063 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES admin/unidata/Makefile admin/grammars/Makefile"
5064 AC_CONFIG_FILES([admin/unidata/Makefile])
5065 AC_CONFIG_FILES([admin/grammars/Makefile])
5069 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
5071 AC_SUBST(SUBDIR_MAKEFILES_IN)
5073 dnl You might wonder (I did) why epaths.h is generated by running make,
5074 dnl rather than just letting configure generate it from epaths.in.
5075 dnl One reason is that the various paths are not fully expanded (see above);
5076 dnl eg gamedir=${prefix}/var/games/emacs.
5077 dnl Secondly, the GNU Coding standards require that one should be able
5078 dnl to run `make prefix=/some/where/else' and override the values set
5079 dnl by configure. This also explains the `move-if-change' test and
5080 dnl the use of force in the `epaths-force' rule in Makefile.in.
5081 AC_CONFIG_COMMANDS([src/epaths.h], [
5082 if test "${opsys}" = "mingw32"; then
5083 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
5085 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
5087 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
5089 dnl NB we have to cheat and use the ac_... version because abs_top_srcdir
5090 dnl is not yet set, sigh. Or we could use ../$srcdir/src/.gdbinit,
5092 AC_CONFIG_COMMANDS([src/.gdbinit], [
5093 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
5094 echo "source $ac_abs_top_srcdir/src/.gdbinit" > src/.gdbinit