1 dnl Autoconf script for GNU Emacs
2 dnl To rebuild the `configure' script from this, execute the command
4 dnl in the directory containing this script.
5 dnl If you changed any AC_DEFINES, also run autoheader.
7 dnl Copyright (C) 1994-1996, 1999-2014 Free Software Foundation, Inc.
9 dnl This file is part of GNU Emacs.
11 dnl GNU Emacs is free software: you can redistribute it and/or modify
12 dnl it under the terms of the GNU General Public License as published by
13 dnl the Free Software Foundation, either version 3 of the License, or
14 dnl (at your option) any later version.
16 dnl GNU Emacs is distributed in the hope that it will be useful,
17 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
18 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 dnl GNU General Public License for more details.
21 dnl You should have received a copy of the GNU General Public License
22 dnl along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
25 dnl Note this is parsed by (at least) make-dist and lisp/cedet/ede/emacs.el.
26 AC_INIT(GNU Emacs, 24.4.50, bug-gnu-emacs@gnu.org)
28 dnl We get MINGW64 with MSYS2
29 if test "x$MSYSTEM" = "xMINGW32" -o "x$MSYSTEM" = "xMINGW64"
31 . $srcdir/nt/mingw-cfg.site
35 # srcdir is an absolute path. In this case, force the format
36 # "/c/foo/bar", to simplify later conversions to native Windows
37 # format ("c:/foo/bar")
38 srcdir=`cd "${srcdir}" && pwd -W`
39 srcdir="/${srcdir:0:1}${srcdir:2}"
44 dnl Set emacs_config_options to the options of 'configure', quoted for the shell,
45 dnl and then quoted again for a C string. Separate options with spaces.
46 dnl Add some environment variables, if they were passed via the environment
47 dnl rather than on the command-line.
50 dnl This is the documented way to record the args passed to configure,
51 dnl rather than $ac_configure_args.
52 for opt in ${1+"$@"} CFLAGS CPPFLAGS LDFLAGS; do
54 -n | --no-create | --no-recursion)
56 CFLAGS | CPPFLAGS | LDFLAGS)
57 eval 'test "${'$opt'+set}" = set' || continue
59 *" $opt="*) continue ;;
61 eval opt=$opt=\$$opt ;;
64 emacs_shell_specials=$IFS\''"#$&()*;<>?@<:@\\`{|~'
66 *[["$emacs_shell_specials"]]*)
69 emacs_quote_apostrophes="s/'/'\\\\''/g"
70 opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_apostrophes"` ;;
75 emacs_quote_for_c='s/[["\\]]/\\&/g; $!s/$/\\n\\/'
76 opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_for_c"` ;;
79 AS_VAR_APPEND([emacs_config_options], ["$optsep$opt"])
83 AC_CONFIG_HEADERS(src/config.h:src/config.in)
84 AC_CONFIG_SRCDIR(src/lisp.h)
85 AC_CONFIG_AUX_DIR(build-aux)
86 dnl automake 1.13 and later understand this, making -I m4 unnecessary.
87 dnl With older versions this is a no-op.
88 AC_CONFIG_MACRO_DIR(m4)
91 AC_CHECK_PROGS(XCRUN, [xcrun])
92 if test -n "$XCRUN"; then
93 if test -z "$MAKE"; then
94 dnl Call the variable MAKE_PROG, not MAKE, to avoid confusion with
95 dnl SET_MAKE and with the usual MAKE variable that 'make' itself uses.
96 AC_CHECK_PROG([MAKE_PROG], [make], [yes])
97 if test -z "$MAKE_PROG"; then
100 xcsdkdir=`$XCRUN --show-sdk-path 2>/dev/null`
105 dnl Fairly arbitrary, older versions might work too.
106 AM_INIT_AUTOMAKE(1.11)
108 dnl Support for --program-prefix, --program-suffix and
109 dnl --program-transform-name options
112 dnl It is important that variables on the RHS not be expanded here,
113 dnl hence the single quotes. This is per the GNU coding standards, see
114 dnl (autoconf) Installation Directory Variables
115 dnl See also epaths.h below.
116 lispdir='${datadir}/emacs/${version}/lisp'
117 standardlisppath='${lispdir}'
118 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
119 '${datadir}/emacs/site-lisp'
120 lisppath='${locallisppath}:${standardlisppath}'
121 etcdir='${datadir}/emacs/${version}/etc'
122 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
123 etcdocdir='${datadir}/emacs/${version}/etc'
124 gamedir='${localstatedir}/games/emacs'
126 dnl Special option to disable the most of other options.
128 [AS_HELP_STRING([--without-all],
129 [omit almost all features and build
130 small executable with minimal dependencies])],
131 [with_features=$withval],
134 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
135 dnl Create a new --with option that defaults to being disabled.
136 dnl NAME is the base name of the option. The shell variable with_NAME
137 dnl will be set to either the user's value (if the option is
138 dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
139 dnl option is not specified). Note that the shell variable name is
140 dnl constructed as autoconf does, by replacing non-alphanumeric
141 dnl characters with "_".
142 dnl HELP-STRING is the help text for the option.
143 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
144 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
145 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
148 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
149 dnl Create a new --with option that defaults to $with_features.
150 dnl NAME is the base name of the option. The shell variable with_NAME
151 dnl will be set either to 'no' (for a plain --without-NAME) or to
152 dnl 'yes' (if the option is not specified). Note that the shell
153 dnl variable name is constructed as autoconf does, by replacing
154 dnl non-alphanumeric characters with "_".
155 dnl HELP-STRING is the help text for the option.
156 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
157 AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
158 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=$with_features])dnl
161 OPTION_DEFAULT_ON([pop],[don't support POP mail retrieval with movemail])
162 if test "$with_pop" = yes; then
163 AC_DEFINE(MAIL_USE_POP)
165 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
167 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
168 if test "$with_kerberos" != no; then
171 AH_TEMPLATE(KERBEROS,
172 [Define to support Kerberos-authenticated POP mail retrieval.])dnl
174 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
175 if test "${with_kerberos5}" != no; then
176 if test "${with_kerberos}" = no; then
180 AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
183 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
184 dnl FIXME hesiod support may not be present, so it seems like an error
185 dnl to define, or at least use, this unconditionally.
186 if test "$with_hesiod" != no; then
187 AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
190 OPTION_DEFAULT_OFF([mmdf],[support MMDF mailboxes])
191 if test "$with_mmdf" != no; then
192 AC_DEFINE(MAIL_USE_MMDF, 1, [Define to support MMDF mailboxes in movemail.])
195 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
196 if test "$with_mail_unlink" != no; then
197 AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
200 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
201 [string giving default POP mail host])],
202 AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
204 AC_ARG_WITH([sound],[AS_HELP_STRING([--with-sound=VALUE],
205 [compile with sound support (VALUE one of: yes, alsa, oss, bsd-ossaudio, no;
206 default yes). Only for GNU/Linux, FreeBSD, NetBSD, MinGW.])],
207 [ case "${withval}" in
208 yes|no|alsa|oss|bsd-ossaudio) val=$withval ;;
209 *) AC_MSG_ERROR([`--with-sound=$withval' is invalid;
210 this option's value should be `yes', `no', `alsa', `oss', or `bsd-ossaudio'.])
215 [with_sound=$with_features])
217 dnl FIXME currently it is not the last.
218 dnl This should be the last --with option, because --with-x is
219 dnl added later on when we find the file name of X, and it's best to
220 dnl keep them together visually.
221 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
222 [use an X toolkit (KIT one of: yes or gtk, gtk2, gtk3, lucid or athena, motif, no)])],
223 [ case "${withval}" in
224 y | ye | yes ) val=gtk ;;
226 l | lu | luc | luci | lucid ) val=lucid ;;
227 a | at | ath | athe | athen | athena ) val=athena ;;
228 m | mo | mot | moti | motif ) val=motif ;;
229 g | gt | gtk ) val=gtk ;;
233 AC_MSG_ERROR([`--with-x-toolkit=$withval' is invalid;
234 this option's value should be `yes', `no', `lucid', `athena', `motif', `gtk',
235 `gtk2' or `gtk3'. `yes' and `gtk' are synonyms.
236 `athena' and `lucid' are synonyms.])
242 OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit)])
243 if test "$with_wide_int" = yes; then
244 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
247 dnl _ON results in a '--without' option in the --help output, so
248 dnl the help text should refer to "don't compile", etc.
249 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
250 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
251 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
252 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
253 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
254 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
255 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
256 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
258 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
259 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
260 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
262 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
263 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
264 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
265 OPTION_DEFAULT_OFF([ns],[use NeXTstep (Cocoa or GNUstep) windowing system])
266 OPTION_DEFAULT_OFF([w32], [use native MS Windows GUI in a Cygwin build])
268 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
269 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
270 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
271 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
272 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
273 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
274 OPTION_DEFAULT_ON([zlib],[don't compile with zlib decompression support])
276 AC_ARG_WITH([file-notification],[AS_HELP_STRING([--with-file-notification=LIB],
277 [use a file notification library (LIB one of: yes, gfile, inotify, w32, no)])],
278 [ case "${withval}" in
279 y | ye | yes ) val=yes ;;
281 g | gf | gfi | gfil | gfile ) val=gfile ;;
282 i | in | ino | inot | inoti | inotif | inotify ) val=inotify ;;
283 w | w3 | w32 ) val=w32 ;;
284 * ) AC_MSG_ERROR([`--with-file-notification=$withval' is invalid;
285 this option's value should be `yes', `no', `gfile', `inotify' or `w32'.
286 `yes' is a synonym for `w32' on MS-Windows, for `no' on Nextstep,
287 otherwise for the first of `gfile' or `inotify' that is usable.])
290 with_file_notification=$val
292 [with_file_notification=$with_features])
294 ## For the times when you want to build Emacs but don't have
295 ## a suitable makeinfo, and can live without the manuals.
296 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
297 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
299 ## This might be a 'configure' arg, e.g., autogen.sh might set it.
300 AC_SUBST([ACLOCAL_PATH])
302 ## Makefile.in needs the cache file name.
305 ## This is an option because I do not know if all info/man support
306 ## compressed files, nor how to test if they do so.
307 OPTION_DEFAULT_ON([compress-install],
308 [don't compress some files (.el, .info, etc.) when installing. Equivalent to:
309 make GZIP_PROG= install])
311 AC_ARG_WITH(gameuser,dnl
312 [AS_HELP_STRING([--with-gameuser=USER],[user for shared game score files])])
313 test "X${with_gameuser}" != X && test "${with_gameuser}" != yes \
314 && gameuser="${with_gameuser}"
315 test "X$gameuser" = X && gameuser=games
317 AC_ARG_WITH([gnustep-conf],dnl
318 [AS_HELP_STRING([--with-gnustep-conf=FILENAME],
319 [name of GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
320 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
321 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
322 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
323 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
325 AC_ARG_ENABLE(ns-self-contained,
326 [AS_HELP_STRING([--disable-ns-self-contained],
327 [disable self contained build under NeXTstep])],
328 EN_NS_SELF_CONTAINED=$enableval,
329 EN_NS_SELF_CONTAINED=yes)
331 AC_ARG_ENABLE(locallisppath,
332 [AS_HELP_STRING([--enable-locallisppath=PATH],
333 [directories Emacs should search for lisp files specific
335 if test "${enableval}" = "no"; then
337 elif test "${enableval}" != "yes"; then
338 locallisppath=${enableval}
341 AC_ARG_ENABLE(checking,
342 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
343 [enable expensive run-time checks. With LIST,
344 enable only specific categories of checks.
345 Categories are: all,yes,no.
346 Flags are: stringbytes, stringoverrun, stringfreelist,
347 xmallocoverrun, conslist, glyphs])],
348 [ac_checking_flags="${enableval}"],[])
349 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
350 for check in $ac_checking_flags
353 # these set all the flags to specific states
354 yes) ac_enable_checking=1 ;;
355 no) ac_enable_checking= ;
356 ac_gc_check_stringbytes= ;
357 ac_gc_check_string_overrun= ;
358 ac_gc_check_string_free_list= ;
359 ac_xmalloc_overrun= ;
360 ac_gc_check_cons_list= ;
362 all) ac_enable_checking=1 ;
363 ac_gc_check_stringbytes=1 ;
364 ac_gc_check_string_overrun=1 ;
365 ac_gc_check_string_free_list=1 ;
366 ac_xmalloc_overrun=1 ;
367 ac_gc_check_cons_list=1 ;
369 # these enable particular checks
370 stringbytes) ac_gc_check_stringbytes=1 ;;
371 stringoverrun) ac_gc_check_string_overrun=1 ;;
372 stringfreelist) ac_gc_check_string_free_list=1 ;;
373 xmallocoverrun) ac_xmalloc_overrun=1 ;;
374 conslist) ac_gc_check_cons_list=1 ;;
375 glyphs) ac_glyphs_debug=1 ;;
376 *) AC_MSG_ERROR(unknown check category $check) ;;
381 if test x$ac_enable_checking != x ; then
382 AC_DEFINE(ENABLE_CHECKING, 1,
383 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
385 if test x$ac_gc_check_stringbytes != x ; then
386 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
387 [Define this temporarily to hunt a bug. If defined, the size of
388 strings is redundantly recorded in sdata structures so that it can
389 be compared to the sizes recorded in Lisp strings.])
391 if test x$ac_gc_check_string_overrun != x ; then
392 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
393 [Define this to check for short string overrun.])
395 if test x$ac_gc_check_string_free_list != x ; then
396 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
397 [Define this to check the string free list.])
399 if test x$ac_xmalloc_overrun != x ; then
400 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
401 [Define this to check for malloc buffer overrun.])
403 if test x$ac_gc_check_cons_list != x ; then
404 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
405 [Define this to check for errors in cons list.])
407 if test x$ac_glyphs_debug != x ; then
408 AC_DEFINE(GLYPH_DEBUG, 1,
409 [Define this to enable glyphs debugging code.])
412 AC_ARG_ENABLE(check-lisp-object-type,
413 [AS_HELP_STRING([--enable-check-lisp-object-type],
414 [enable compile time checks for the Lisp_Object data type.
415 This is useful for development for catching certain types of bugs.])],
416 if test "${enableval}" != "no"; then
417 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
418 [Define this to enable compile time checks for the Lisp_Object data type.])
422 dnl The name of this option is unfortunate. It predates, and has no
423 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
424 dnl Actually, it stops it working.
425 dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
426 AC_ARG_ENABLE(profiling,
427 [AS_HELP_STRING([--enable-profiling],
428 [build emacs with low-level, gprof profiling support.
429 Mainly useful for debugging Emacs itself. May not work on
430 all platforms. Stops profiler.el working.])],
431 [ac_enable_profiling="${enableval}"],[])
432 if test x$ac_enable_profiling != x ; then
433 PROFILING_CFLAGS="-DPROFILING=1 -pg"
437 AC_SUBST(PROFILING_CFLAGS)
439 AC_ARG_ENABLE(autodepend,
440 [AS_HELP_STRING([--enable-autodepend],
441 [automatically generate dependencies to .h-files.
442 Requires gcc, enabled if found.])],
443 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
445 AC_ARG_ENABLE(gtk-deprecation-warnings,
446 [AS_HELP_STRING([--enable-gtk-deprecation-warnings],
447 [Show Gtk+/Gdk deprecation warnings for Gtk+ >= 3.0])],
448 [ac_enable_gtk_deprecation_warnings="${enableval}"],[])
450 ### Canonicalize the configuration name.
454 configuration=${host_alias-${build_alias-$host}}
456 dnl This used to use changequote, but, apart from `changequote is evil'
457 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
458 dnl the great gob of text. Thus it's not processed for possible expansion.
459 dnl Just make sure the brackets remain balanced.
461 dnl Since Emacs can't find matching pairs of quotes, boundaries are
462 dnl indicated by comments.
466 ### If you add support for a new configuration, add code to this
467 ### switch statement to recognize your configuration name and select
468 ### the appropriate opsys.
470 ### As far as handling version numbers on operating systems is
471 ### concerned, make sure things will fail in a fixable way. If
472 ### /etc/MACHINES doesn't say anything about version numbers, be
473 ### prepared to handle anything reasonably. If version numbers
474 ### matter, be sure /etc/MACHINES says something about it.
477 case "${canonical}" in
479 ## GNU/Linux and similar ports
494 ## FreeBSD kernel + glibc based userland
505 *-*-openbsd* | *-*-mirbsd* )
509 ## Apple Darwin / Mac OS X
511 case "${canonical}" in
518 ## Use fink packages if available.
519 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
520 ## if test -d /sw/include && test -d /sw/lib; then
521 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
522 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
531 ## HP 9000 series 700 and 800, running HP/UX
535 hppa*-hp-hpux1[1-9]* )
537 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
541 rs6000-ibm-aix4.[23]* )
544 powerpc-ibm-aix4.[23]* )
547 rs6000-ibm-aix[56]* )
550 powerpc-ibm-aix[56]* )
554 ## Silicon Graphics machines
558 # Without defining _LANGUAGE_C, things get masked out in the headers
559 # so that, for instance, grepping for `free' in stdlib.h fails and
560 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
561 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
566 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
567 | x86_64-*-solaris2* | x86_64-*-sunos5*)
568 case "${canonical}" in
570 amd64-*-*|x86_64-*-*) ;;
574 case "${canonical}" in
575 *-sunos5.[1-9][0-9]* | *-solaris2.[1-9][0-9]* )
577 emacs_check_sunpro_c=yes
579 *-sunos5.6* | *-solaris2.6* )
583 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
585 emacs_check_sunpro_c=yes
588 ## Watch out for a compiler that we know will not work.
589 case "${canonical}" in
590 *-solaris* | *-sunos5* )
591 if [ "x$CC" = x/usr/ucb/cc ]; then
592 ## /usr/ucb/cc doesn't work;
593 ## we should find some other compiler that does work.
601 ## Intel 386 machines where we don't care about the manufacturer.
603 case "${canonical}" in
604 *-darwin* ) opsys=darwin ;;
607 # MinGW overrides and adds some system headers in nt/inc.
608 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
610 *-sysv4.2uw* ) opsys=unixware ;;
611 *-sysv5uw* ) opsys=unixware ;;
612 *-sysv5OpenUNIX* ) opsys=unixware ;;
613 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
619 case "${canonical}" in
622 # MinGW overrides and adds some system headers in nt/inc.
623 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
625 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
634 ### If the code above didn't choose an operating system, just choose
635 ### an operating system based on the configuration name. You really
636 ### only want to use this when you have no idea what the right
637 ### operating system is; if you know what operating systems a machine
638 ### runs, it's cleaner to make it explicit in the case statement
640 if test x"${opsys}" = x; then
641 case "${canonical}" in
642 *-gnu* ) opsys=gnu ;;
652 if test $unported = yes; then
653 AC_MSG_ERROR([Emacs does not support `${canonical}' systems.
654 If you think it should, please send a report to ${PACKAGE_BUGREPORT}.
655 Check `etc/MACHINES' for recognized configuration names.])
659 AC_MSG_CHECKING([whether we are using GNU Make])
660 testval=`${MAKE-make} --version 2>/dev/null | grep 'GNU Make'`
661 if test "x$testval" != x; then
665 AC_MSG_ERROR([Building Emacs requires GNU make.
666 If you have it installed under another name, configure with 'MAKE=...'.
667 For example, run './configure MAKE=gmake'.])
671 #### Choose a compiler.
673 dnl Sets GCC=yes if using gcc.
674 AC_PROG_CC([gcc cc cl clang "$XCRUN gcc" "$XCRUN clang"])
675 if test -n "$XCRUN"; then
676 AC_CHECK_PROGS(AR, [ar "$XCRUN ar"])
677 test -n "$AR" && export AR
682 if test x$GCC = xyes; then
683 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
685 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
688 dnl This is used in lib/Makefile.am to use nt/gnulib.mk, the
689 dnl alternative to lib/gnulib.mk, so as to avoid generating header files
690 dnl that clash with MinGW.
691 AM_CONDITIONAL([BUILDING_FOR_WINDOWSNT], [test "x$opsys" = "xmingw32"])
693 # Avoid gnulib's tests for -lcrypto, so that there's no static dependency on it.
694 AC_DEFUN([gl_CRYPTO_CHECK])
695 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
696 # as we don't use them.
697 AC_DEFUN([gl_FCNTL_O_FLAGS])
698 # Avoid gnulib's threadlib module, as we do threads our own way.
699 AC_DEFUN([gl_THREADLIB])
701 # Initialize gnulib right after choosing the compiler.
702 dnl Amongst other things, this sets AR and ARFLAGS.
705 if test "$ac_test_CFLAGS" != set; then
706 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
707 # if -g3 works and the user does not specify CFLAGS.
708 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
711 emacs_g3_CFLAGS='-g3';;
713 emacs_g3_CFLAGS='-g3 -O2';;
717 if test -n "$emacs_g3_CFLAGS"; then
718 emacs_save_CFLAGS=$CFLAGS
719 CFLAGS=$emacs_g3_CFLAGS
720 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
721 [emacs_cv_prog_cc_g3],
722 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
723 [emacs_cv_prog_cc_g3=yes],
724 [emacs_cv_prog_cc_g3=no])])
725 if test $emacs_cv_prog_cc_g3 != yes; then
726 CFLAGS=$emacs_save_CFLAGS
728 if test $opsys = mingw32; then
729 CFLAGS="$CFLAGS -gdwarf-2"
736 # No optimization flag was inferred for this non-GCC compiler.
737 # Try -O. This is needed for xlc on AIX; see Bug#14258.
738 emacs_save_CFLAGS=$CFLAGS
739 test -z "$CFLAGS" || CFLAGS="$CFLAGS "
741 AC_CACHE_CHECK([whether $CC accepts -O],
742 [emacs_cv_prog_cc_o],
743 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
744 [emacs_cv_prog_cc_o=yes],
745 [emacs_cv_prog_cc_o=no])])
746 if test $emacs_cv_prog_cc_o != yes; then
747 CFLAGS=$emacs_save_CFLAGS
752 AC_ARG_ENABLE([gcc-warnings],
753 [AS_HELP_STRING([--enable-gcc-warnings],
754 [turn on lots of GCC warnings/errors. This is intended for
755 developers, and may generate false alarms when used
756 with older or non-GNU development tools.])],
759 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
761 gl_gcc_warnings=$enableval],
765 # clang is unduly picky about some things.
766 AC_CACHE_CHECK([whether the compiler is clang], [emacs_cv_clang],
773 [emacs_cv_clang=yes],
774 [emacs_cv_clang=no])])
776 # When compiling with GCC, prefer -isystem to -I when including system
777 # include files, to avoid generating useless diagnostics for the files.
778 if test "$gl_gcc_warnings" != yes; then
780 if test "$emacs_cv_clang" = yes
782 # Turn off some warnings if supported.
783 gl_WARN_ADD([-Wno-switch])
784 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
785 gl_WARN_ADD([-Wno-pointer-sign])
790 # This, $nw, is the list of warnings we disable.
793 case $with_x_toolkit in
794 lucid | athena | motif)
795 # Old toolkits mishandle 'const'.
796 nw="$nw -Wwrite-strings"
799 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
802 AC_SUBST([WERROR_CFLAGS])
804 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
805 nw="$nw -Woverlength-strings" # Not a problem these days
806 nw="$nw -Wlogical-op" # any use of fwrite provokes this
807 nw="$nw -Wformat-nonliteral" # we do this a lot
808 nw="$nw -Wvla" # warnings in gettext.h
809 nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
810 nw="$nw -Wswitch-default" # Too many warnings for now
811 nw="$nw -Winline" # OK to ignore 'inline'
812 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
813 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
814 # signed overflow has undefined behavior
815 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
816 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
817 nw="$nw -Wbad-function-cast" # These casts are no worse than others.
819 # Emacs doesn't care about shadowing; see
820 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
823 # Emacs's use of alloca inhibits protecting the stack.
824 nw="$nw -Wstack-protector"
826 # The following line should be removable at some point.
827 nw="$nw -Wsuggest-attribute=pure"
829 # This part is merely for shortening the command line,
830 # since -Wno-FOO needs to be added below regardless.
831 nw="$nw -Wmissing-field-initializers"
833 nw="$nw -Wtype-limits"
834 nw="$nw -Wunused-parameter"
836 if test $emacs_cv_clang = yes; then
837 nw="$nw -Wcast-align"
840 gl_MANYWARN_ALL_GCC([ws])
841 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
845 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
846 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
847 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
848 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
849 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
850 gl_WARN_ADD([-Wno-format-nonliteral])
852 # In spite of excluding -Wlogical-op above, it is enabled, as of
853 # gcc 4.5.0 20090517.
854 gl_WARN_ADD([-Wno-logical-op])
856 # More things that clang is unduly picky about.
857 if test $emacs_cv_clang = yes; then
858 gl_WARN_ADD([-Wno-format-extra-args])
859 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
860 gl_WARN_ADD([-Wno-unused-command-line-argument])
861 gl_WARN_ADD([-Wno-unused-value])
864 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
865 AH_VERBATIM([FORTIFY_SOURCE],
866 [/* Enable compile-time and run-time bounds-checking, and some warnings,
867 without upsetting glibc 2.15+. */
868 #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
869 # define _FORTIFY_SOURCE 2
872 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
874 # We use a slightly smaller set of warning options for lib/.
875 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
877 nw="$nw -Wunused-macros"
879 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
880 AC_SUBST([GNULIB_WARN_CFLAGS])
890 AC_ARG_ENABLE(link-time-optimization,
891 [AS_HELP_STRING([--enable-link-time-optimization],
892 [build emacs with link-time optimization.
893 This is supported for gcc since 4.5.0 and clang.
894 Note that clang support is experimental - see INSTALL])],
895 if test "${enableval}" != "no"; then
897 if test $emacs_cv_clang = yes; then
898 AC_MSG_CHECKING([whether link-time optimization is supported by clang])
899 GOLD_PLUGIN=`$CC -print-file-name=LLVMgold.so 2>/dev/null`
900 if test -x "$GOLD_PLUGIN"; then
903 elif test x$GCC = xyes; then
904 AC_MSG_CHECKING([whether link-time optimization is supported by gcc])
905 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
906 if test x$CPUS != x; then
912 AC_MSG_ERROR([Link-time optimization is not supported with your compiler.])
914 if test -z "$LTO"; then
918 CFLAGS="$CFLAGS $LTO"
919 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
920 [ac_lto_supported=yes], [ac_lto_supported=no])
923 AC_MSG_RESULT([$ac_lto_supported])
924 if test "$ac_lto_supported" = "yes"; then
925 CFLAGS="$CFLAGS $LTO"
926 if test x$emacs_cv_clang = xyes; then
927 AC_MSG_WARN([Please read INSTALL before using link-time optimization with clang])
928 # WARNING: 'ar --plugin ...' doesn't work without
929 # command, so plugin name is appended to ARFLAGS.
930 ARFLAGS="cru --plugin $GOLD_PLUGIN"
931 RANLIB="$RANLIB --plugin $GOLD_PLUGIN"
936 dnl Some other nice autoconf tests.
937 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
940 dnl if test "x$RANLIB" = x; then
945 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
946 dnl can be made to directories. This is not relevant for our usage, and
947 dnl excludes some cases that work fine for us. Eg MS Windows or files
948 dnl hosted on AFS, both examples where simple links work, but links to
949 dnl directories fail. We use a cut-down version instead.
952 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
953 rm -f conf$$ conf$$.file
955 LN_S_FILEONLY='cp -p'
957 dnl On MinGW, ensure we will call the MSYS /bin/ln.exe, not some
958 dnl random program in the current directory.
959 if (echo >conf$$.file) 2>/dev/null; then
960 if ln -s conf$$.file conf$$ 2>/dev/null; then
961 if test "$opsys" = "mingw32"; then
962 LN_S_FILEONLY='/bin/ln -s'
964 LN_S_FILEONLY='ln -s'
966 elif ln conf$$.file conf$$ 2>/dev/null; then
967 if test "$opsys" = "mingw32"; then
968 LN_S_FILEONLY=/bin/ln
975 rm -f conf$$ conf$$.file
977 if test "$LN_S_FILEONLY" = "ln -s"; then
980 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
983 AC_SUBST(LN_S_FILEONLY)
986 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
987 dnl doesn't support links to directories, as in "ln file dir". But that
988 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
989 dnl executables at "make install" time.
990 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
991 dnl for more details.
992 if test "$opsys" = "mingw32"; then
996 AC_PATH_PROG(INSTALL_INFO, install-info, :,
997 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
998 dnl Don't use GZIP, which is used by gzip for additional parameters.
999 AC_PATH_PROG(GZIP_PROG, gzip)
1001 test $with_compress_install != yes && test -n "$GZIP_PROG" && \
1002 GZIP_PROG=" # $GZIP_PROG # (disabled by configure --without-compress-install)"
1004 if test $opsys = gnu-linux; then
1005 AC_PATH_PROG(PAXCTL, paxctl,,
1006 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
1007 if test "X$PAXCTL" != X; then
1008 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
1009 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1010 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
1011 else AC_MSG_RESULT(no); PAXCTL=""; fi])
1014 if test "${SETFATTR+set}" != set; then
1015 AC_CACHE_CHECK([for setfattr],
1016 [emacs_cv_prog_setfattr],
1018 if (setfattr -n user.pax.flags conftest.tmp) >/dev/null 2>&1; then
1019 emacs_cv_prog_setfattr=yes
1021 emacs_cv_prog_setfattr=no
1023 if test "$emacs_cv_prog_setfattr" = yes; then
1029 AC_SUBST([SETFATTR])
1033 ## Need makeinfo >= 4.7 (?) to build the manuals.
1034 AC_PATH_PROG(MAKEINFO, makeinfo, no)
1035 dnl By this stage, configure has already checked for egrep and set EGREP,
1036 dnl or exited with an error if no egrep was found.
1037 if test "$MAKEINFO" != "no"; then
1039 $MAKEINFO --version 2> /dev/null |
1040 $EGREP 'texinfo[[^0-9]]*([[1-4]][[0-9]]+|[[5-9]]|4\.[[7-9]]|4\.[[1-6]][[0-9]]+)'
1046 ## Makeinfo is unusual. For a released Emacs, the manuals are
1047 ## pre-built, and not deleted by the normal clean rules. makeinfo is
1048 ## therefore in the category of "special tools" not normally required, which
1049 ## configure does not have to check for (eg autoconf itself).
1050 ## In a repository checkout on the other hand, the manuals are not included.
1051 ## So makeinfo is a requirement to build from the repository, and configure
1052 ## should test for it as it does for any other build requirement.
1053 ## We use the presence of $srcdir/info/emacs to distinguish a release,
1054 ## with pre-built manuals, from a repository checkout.
1057 if test "$MAKEINFO" = "no"; then
1059 if test "x${with_makeinfo}" = "xno"; then
1061 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
1062 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
1063 source tree does not seem to have pre-built manuals in the `info' directory.
1064 Either install a suitable version of makeinfo, or re-run configure
1065 with the `--without-makeinfo' option to build without the manuals.] )
1068 AC_SUBST(HAVE_MAKEINFO)
1070 dnl Just so that there is only a single place we need to edit.
1072 INFO_OPTS=--no-split
1076 if test $opsys = mingw32; then
1077 DOCMISC_W32=efaq-w32
1081 AC_SUBST(DOCMISC_W32)
1083 dnl Add our options to ac_link now, after it is set up.
1085 if test x$GCC = xyes; then
1086 test "x$GCC_LINK_TEST_OPTIONS" != x && \
1087 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1089 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
1090 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1093 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
1094 dnl If we can link with the flag, it shouldn't do any harm anyhow.
1095 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
1096 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
1097 dnl if not built to support GNU ld.
1099 dnl For a long time, -znocombreloc was added to LDFLAGS rather than
1100 dnl LD_SWITCH_SYSTEM_TEMACS. That is:
1101 dnl * inappropriate, as LDFLAGS is a user option but this is essential.
1102 dnl Eg "make LDFLAGS=... all" could run into problems,
1103 dnl http://bugs.debian.org/684788
1104 dnl * unnecessary, since temacs is the only thing that actually needs it.
1105 dnl Indeed this is where it was originally, prior to:
1106 dnl http://lists.gnu.org/archive/html/emacs-pretest-bug/2004-03/msg00170.html
1107 late_LDFLAGS="$LDFLAGS"
1108 if test x$GCC = xyes; then
1109 LDFLAGS_NOCOMBRELOC="-Wl,-znocombreloc"
1111 LDFLAGS_NOCOMBRELOC="-znocombreloc"
1114 LDFLAGS="$LDFLAGS $LDFLAGS_NOCOMBRELOC"
1116 AC_MSG_CHECKING([for -znocombreloc])
1117 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1118 [AC_MSG_RESULT(yes)],
1119 LDFLAGS_NOCOMBRELOC=
1120 [AC_MSG_RESULT(no)])
1122 LDFLAGS="$late_LDFLAGS"
1124 AC_CACHE_CHECK([whether addresses are sanitized],
1125 [emacs_cv_sanitize_address],
1128 [[#ifndef __has_feature
1129 #define __has_feature(f) 0
1131 #if defined __SANITIZE_ADDRESS__ || __has_feature (address_sanitizer)
1133 error "Addresses are not sanitized.";
1136 [emacs_cv_sanitize_address=yes],
1137 [emacs_cv_sanitize_address=no])])
1139 dnl The function dump-emacs will not be defined and temacs will do
1140 dnl (load "loadup") automatically unless told otherwise.
1141 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
1143 your-opsys-here) CANNOT_DUMP=yes ;;
1146 if test "$CANNOT_DUMP" = "yes"; then
1147 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1148 elif test "$emacs_cv_sanitize_address" = yes; then
1149 AC_MSG_WARN([[Addresses are sanitized; suggest CANNOT_DUMP=yes]])
1152 AC_SUBST(CANNOT_DUMP)
1155 UNEXEC_OBJ=unexelf.o
1157 # MSDOS uses unexcoff.o
1159 UNEXEC_OBJ=unexaix.o
1165 UNEXEC_OBJ=unexmacosx.o
1168 UNEXEC_OBJ=unexhp9k800.o
1171 UNEXEC_OBJ=unexw32.o
1174 # Use the Solaris dldump() function, called from unexsol.c, to dump
1175 # emacs, instead of the generic ELF dump code found in unexelf.c.
1176 # The resulting binary has a complete symbol table, and is better
1177 # for debugging and other observability tools (debuggers, pstack, etc).
1179 # If you encounter a problem using dldump(), please consider sending
1180 # a message to the OpenSolaris tools-linking mailing list:
1181 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1183 # It is likely that dldump() works with older Solaris too, but this has
1184 # not been tested, so for now this change is for Solaris 10 or newer.
1185 UNEXEC_OBJ=unexsol.o
1192 ## Let `ld' find image libs and similar things in /usr/local/lib.
1193 ## The system compiler, GCC, has apparently been modified to not
1194 ## look there, contrary to what a stock GCC would do.
1195 ### It's not our place to do this. See bug#10313#17.
1196 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1201 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1202 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1206 ### It's not our place to do this. See bug#10313#17.
1207 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1212 ## Han Boetes <han@boetes.org> says this is necessary,
1213 ## otherwise Emacs dumps core on elf systems.
1214 LD_SWITCH_SYSTEM="-Z"
1217 AC_SUBST(LD_SWITCH_SYSTEM)
1219 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1221 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1222 ## which has not been defined yet. When this was handled with cpp,
1223 ## it was expanded to null when configure sourced the s/*.h file.
1224 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1225 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1226 ## (or somesuch), but because it is supposed to go at the _front_
1227 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1228 ## Compare with the gnu-linux case below, which added to the end
1229 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1230 ## LD_SWITCH_SYSTEM_TEMACS.
1233 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1240 AC_CHECK_DECL([__ELF__])
1241 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1242 ## With ELF, make sure that all common symbols get allocated to in the
1243 ## data section. Otherwise, the dump of temacs may miss variables in
1244 ## the shared library that have been initialized. For example, with
1245 ## GNU libc, __malloc_initialized would normally be resolved to the
1246 ## shared library's .bss section, which is fatal.
1247 if test "x$GCC" = "xyes"; then
1248 C_SWITCH_MACHINE="-fno-common"
1250 AC_MSG_ERROR([Non-GCC compilers are not supported.])
1253 dnl This was the unexalpha.c case. Removed in 24.1, 2010-07-24,
1254 dnl albeit under the mistaken assumption that said file
1255 dnl was no longer used.
1256 AC_MSG_ERROR([Non-ELF systems are not supported since Emacs 24.1.])
1260 AC_SUBST(C_SWITCH_MACHINE)
1262 AC_SUBST(UNEXEC_OBJ)
1265 ## Some programs in src produce warnings saying certain subprograms
1266 ## are too complex and need a MAXMEM value greater than 2000 for
1267 ## additional optimization. --nils@exp-math.uni-essen.de
1268 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1269 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1270 if test "$opsys" = "mingw32"; then
1271 case "$canonical" in
1272 x86_64-*-mingw32) C_SWITCH_SYSTEM="-mtune=generic" ;;
1273 *) C_SWITCH_SYSTEM="-mtune=pentium4" ;;
1276 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1277 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1278 AC_SUBST(C_SWITCH_SYSTEM)
1283 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1284 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1286 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1288 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1290 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1292 ## Motif needs -lgen.
1293 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1296 AC_SUBST(LIBS_SYSTEM)
1298 ### Make sure subsequent tests use flags consistent with the build flags.
1300 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1301 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1303 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1306 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C89 or better.
1307 AC_DEFUN([AC_TYPE_SIZE_T])
1308 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1309 AC_DEFUN([AC_TYPE_UID_T])
1311 # sqrt and other floating-point functions such as fmod and frexp
1312 # are found in -lm on many systems.
1314 AC_SEARCH_LIBS([sqrt], [m])
1315 if test "X$LIBS" = "X$OLD_LIBS"; then
1318 LIB_MATH=$ac_cv_search_sqrt
1322 dnl Current possibilities handled by sed (aix4-2 -> aix,
1323 dnl gnu-linux -> gnu/linux, etc.):
1324 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1325 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1326 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1333 ## Adding -lm confuses the dynamic linker, so omit it.
1336 freebsd | dragonfly )
1337 SYSTEM_TYPE=berkeley-unix
1339 gnu-linux | gnu-kfreebsd )
1341 hpux10-20 | hpux11 )
1345 SYSTEM_TYPE=windows-nt
1347 dnl NB this may be adjusted below.
1349 SYSTEM_TYPE=berkeley-unix
1353 SYSTEM_TYPE=usg-unix-v
1359 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1360 [The type of system you are compiling for; sets `system-type'.])
1362 m4_pattern_forbid([^PKG_])
1364 AC_ARG_VAR(PKG_CONFIG_PATH, [Colon-separated list of directories
1365 searched by pkg-config])
1367 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1368 pre_PKG_CONFIG_LIBS=$LIBS
1370 PKG_PROG_PKG_CONFIG(0.9.0)
1372 dnl EMACS_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4)
1373 dnl acts like PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4,
1374 dnl HAVE_GSTUFF=yes, HAVE_GSTUFF=no) -- see pkg-config man page --
1375 dnl except that it works around older pkg-config bugs and
1376 dnl it postprocesses CFLAGS as needed for --enable-gcc-warnings.
1377 dnl EMACS_CHECK_MODULES accepts optional 3rd and 4th arguments that
1378 dnl can take the place of the default HAVE_GSTUFF=yes and HAVE_GSTUFF=no
1380 AC_DEFUN([EMACS_CHECK_MODULES],
1381 [dnl pkg-config before 0.26 doesn't check exit status properly; see:
1382 dnl https://bugs.freedesktop.org/show_bug.cgi?id=29801
1383 dnl Work around the bug by checking the status ourselves.
1384 emacs_check_module_ok=false
1385 AS_IF([test -n "$PKG_CONFIG" &&
1386 { $PKG_CONFIG --atleast-pkgconfig-version 0.26 ||
1387 { $PKG_CONFIG --cflags "$2" && $PKG_CONFIG --libs "$2"; }
1388 } >/dev/null 2>&AS_MESSAGE_LOG_FD],
1389 [PKG_CHECK_MODULES([$1], [$2],
1390 [$1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1391 emacs_check_module_ok=:],
1393 if $emacs_check_module_ok; then
1394 m4_default([$3], [HAVE_$1=yes])
1396 m4_default([$4], [HAVE_$1=no])
1400 if test "${with_sound}" != "no"; then
1401 # Sound support for GNU/Linux, the free BSDs, and MinGW.
1402 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h],
1403 have_sound_header=yes, [], [
1405 #define WIN32_LEAN_AND_MEAN
1406 #include <windows.h>
1409 test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
1410 AC_MSG_ERROR([OSS sound support requested but not found.])
1412 if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
1413 # Emulation library used on NetBSD.
1414 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1415 test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
1416 AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
1417 dnl FIXME? If we did find ossaudio, should we set with_sound=bsd-ossaudio?
1418 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1422 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1424 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1425 EMACS_CHECK_MODULES([ALSA], [$ALSA_MODULES])
1426 if test $HAVE_ALSA = yes; then
1427 SAVE_CFLAGS="$CFLAGS"
1429 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1430 LIBS="$ALSA_LIBS $LIBS"
1431 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1432 emacs_alsa_normal=yes,
1433 emacs_alsa_normal=no)
1434 if test "$emacs_alsa_normal" != yes; then
1435 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1436 [[snd_lib_error_set_handler (0);]])],
1437 emacs_alsa_subdir=yes,
1438 emacs_alsa_subdir=no)
1439 if test "$emacs_alsa_subdir" != yes; then
1440 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1442 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1445 CFLAGS="$SAVE_CFLAGS"
1447 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1448 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1449 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1450 elif test "${with_sound}" = "alsa"; then
1451 AC_MSG_ERROR([ALSA sound support requested but not found.])
1453 fi dnl with_sound = alsa|yes
1455 dnl Define HAVE_SOUND if we have sound support. We know it works and
1456 dnl compiles only on the specified platforms. For others, it
1457 dnl probably doesn't make sense to try.
1458 dnl FIXME So surely we should bypass this whole section if not using
1459 dnl one of these platforms?
1460 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1462 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1463 dnl Adjust the --with-sound help text if you change this.
1464 gnu-linux|freebsd|netbsd|mingw32)
1465 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1471 AC_SUBST(CFLAGS_SOUND)
1474 dnl checks for header files
1475 AC_CHECK_HEADERS_ONCE(
1479 sys/utsname.h pwd.h utmp.h util.h)
1481 AC_MSG_CHECKING(if personality LINUX32 can be set)
1482 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1483 emacs_cv_personality_linux32=yes,
1484 emacs_cv_personality_linux32=no)
1485 AC_MSG_RESULT($emacs_cv_personality_linux32)
1487 if test $emacs_cv_personality_linux32 = yes; then
1488 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1489 [Define to 1 if personality LINUX32 can be set.])
1492 dnl On Solaris 8 there's a compilation warning for term.h because
1493 dnl it doesn't define `bool'.
1494 AC_CHECK_HEADERS(term.h, , , -)
1496 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1498 if test $ac_cv_have_decl_sys_siglist != yes; then
1499 # For Tru64, at least:
1500 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1505 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1506 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1507 #if HAVE_SYS_SOCKET_H
1508 #include <sys/socket.h>
1510 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1511 #if HAVE_SYS_SOCKET_H
1512 #include <sys/socket.h>
1514 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1515 #if HAVE_SYS_SOCKET_H
1516 #include <sys/socket.h>
1519 dnl checks for structure members
1520 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1521 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1522 struct ifreq.ifr_addr,
1523 struct ifreq.ifr_addr.sa_len], , ,
1524 [AC_INCLUDES_DEFAULT
1525 #if HAVE_SYS_SOCKET_H
1526 #include <sys/socket.h>
1532 dnl Check for endianness.
1533 dnl AC_C_BIGENDIAN is done by gnulib.
1535 dnl check for Make feature
1536 dnl AC_PROG_MAKE_SET is done by Automake.
1541 dnl check if we have GCC and autodepend is on.
1542 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1543 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1544 SAVE_CFLAGS="$CFLAGS"
1545 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1546 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1547 CFLAGS="$SAVE_CFLAGS"
1548 test -f deps.d || ac_enable_autodepend=no
1550 AC_MSG_RESULT([$ac_enable_autodepend])
1551 if test $ac_enable_autodepend = yes; then
1552 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1553 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1554 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1555 deps_frag=autodeps.mk
1558 deps_frag=$srcdir/src/$deps_frag
1561 AC_SUBST_FILE(deps_frag)
1564 lisp_frag=$srcdir/src/lisp.mk
1565 AC_SUBST_FILE(lisp_frag)
1568 dnl checks for operating system services
1569 AC_SYS_LONG_FILE_NAMES
1571 #### Choose a window system.
1573 ## We leave window_system equal to none if
1574 ## we end up building without one. Any new window system should
1575 ## set window_system to an appropriate value and add objects to
1576 ## window-system-specific substs.
1580 if test "$no_x" != yes; then
1584 LD_SWITCH_X_SITE_RPATH=
1585 if test "${x_libraries}" != NONE; then
1586 if test -n "${x_libraries}"; then
1587 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1588 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1590 x_default_search_path=""
1591 x_search_path=${x_libraries}
1592 if test -z "${x_search_path}"; then
1593 x_search_path=/usr/lib
1595 for x_library in `echo ${x_search_path}: | \
1596 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1598 ${x_library}/X11/%L/%T/%N%C%S:\
1599 ${x_library}/X11/%l/%T/%N%C%S:\
1600 ${x_library}/X11/%T/%N%C%S:\
1601 ${x_library}/X11/%L/%T/%N%S:\
1602 ${x_library}/X11/%l/%T/%N%S:\
1603 ${x_library}/X11/%T/%N%S"
1604 if test x"${x_default_search_path}" = x; then
1605 x_default_search_path=${x_search_path}
1607 x_default_search_path="${x_search_path}:${x_default_search_path}"
1611 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1613 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1614 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1617 if test x"${x_includes}" = x; then
1618 bitmapdir=/usr/include/X11/bitmaps
1620 # accumulate include directories that have X11 bitmap subdirectories
1622 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1623 if test -d "${bmd}/X11/bitmaps"; then
1624 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1626 if test -d "${bmd}/bitmaps"; then
1627 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1630 if test ${bmd_acc} != "dummyval"; then
1631 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1638 tmp_CPPFLAGS="$CPPFLAGS"
1639 tmp_CFLAGS="$CFLAGS"
1640 CPPFLAGS="$CPPFLAGS -x objective-c"
1641 CFLAGS="$CFLAGS -x objective-c"
1644 if test "${with_ns}" != no; then
1645 if test "${opsys}" = darwin; then
1647 ns_appdir=`pwd`/nextstep/Emacs.app
1648 ns_appbindir=${ns_appdir}/Contents/MacOS
1649 ns_appresdir=${ns_appdir}/Contents/Resources
1650 ns_appsrc=Cocoa/Emacs.base
1651 elif test -f $GNUSTEP_CONFIG_FILE; then
1653 ns_appdir=`pwd`/nextstep/Emacs.app
1654 ns_appbindir=${ns_appdir}
1655 ns_appresdir=${ns_appdir}/Resources
1656 ns_appsrc=GNUstep/Emacs.base
1657 dnl FIXME sourcing this several times in subshells seems inefficient.
1658 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1659 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1660 dnl I seemed to need these as well with GNUstep-startup 0.25.
1661 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1662 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1663 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1664 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1665 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1666 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1667 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1668 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1669 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1670 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1671 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1672 dnl If they had chosen to either define it or not, we could have
1673 dnl just used AC_CHECK_DECL here.
1674 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1675 emacs_cv_objc_exceptions,
1676 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1677 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1681 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1682 if test $emacs_cv_objc_exceptions = yes; then
1683 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1684 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1685 [Define if GNUstep uses ObjC exceptions.])
1686 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1690 dnl This is only used while we test the NS headers, it gets reset below.
1691 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1693 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1694 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1695 files are missing or cannot be compiled.])])
1698 if test "${NS_IMPL_COCOA}" = "yes"; then
1699 AC_MSG_CHECKING([for OSX 10.4 or newer])
1700 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1702 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1703 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
1706 error "OSX 10.4 or newer required";
1710 ns_osx_have_104=yes,
1712 AC_MSG_RESULT([$ns_osx_have_104])
1714 if test $ns_osx_have_104 = no; then
1715 AC_MSG_ERROR([`OSX 10.4 or newer is required']);
1717 AC_MSG_CHECKING([for OSX 10.5 or newer])
1718 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1720 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1721 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1050
1724 error "OSX 10.5 not found";
1728 ns_osx_have_105=yes,
1730 AC_MSG_RESULT([$ns_osx_have_105])
1731 if test $ns_osx_have_105 = yes; then
1732 macfont_file="macfont.o"
1735 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1737 ns_have_nsinteger=yes,
1738 ns_have_nsinteger=no)
1739 if test $ns_have_nsinteger = yes; then
1740 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1744 AC_SUBST(LIBS_GNUSTEP)
1746 INSTALL_ARCH_INDEP_EXTRA=install-etc
1747 ns_self_contained=no
1750 if test "${HAVE_NS}" = yes; then
1751 if test "$with_toolkit_scroll_bars" = "no"; then
1752 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1755 window_system=nextstep
1756 # set up packaging dirs
1757 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1758 ns_self_contained=yes
1759 prefix=${ns_appresdir}
1760 exec_prefix=${ns_appbindir}
1761 dnl This one isn't really used, only archlibdir is.
1762 libexecdir="\${ns_appbindir}/libexec"
1763 archlibdir="\${ns_appbindir}/libexec"
1764 etcdocdir="\${ns_appresdir}/etc"
1765 etcdir="\${ns_appresdir}/etc"
1766 dnl FIXME maybe set datarootdir instead.
1767 dnl That would also get applications, icons, man.
1768 infodir="\${ns_appresdir}/info"
1769 mandir="\${ns_appresdir}/man"
1770 lispdir="\${ns_appresdir}/lisp"
1771 INSTALL_ARCH_INDEP_EXTRA=
1774 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o $macfont_file"
1776 CFLAGS="$tmp_CFLAGS"
1777 CPPFLAGS="$tmp_CPPFLAGS"
1778 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1779 AC_SUBST(ns_self_contained)
1781 AC_SUBST(NS_OBJC_OBJ)
1792 if test "${with_w32}" != no; then
1795 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1796 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1797 cannot be found.])])
1800 ## Using --with-w32 with MinGW is a no-op, but we allow it.
1803 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
1808 if test "${opsys}" = "mingw32"; then
1809 AC_MSG_CHECKING([whether Windows API headers are recent enough])
1810 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1811 #include <windows.h>
1812 #include <usp10.h>]],
1813 [[PIMAGE_NT_HEADERS pHeader;
1814 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
1815 [emacs_cv_w32api=yes
1818 AC_MSG_RESULT($emacs_cv_w32api)
1819 if test "${emacs_cv_w32api}" = "no"; then
1820 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
1831 if test "${HAVE_W32}" = "yes"; then
1832 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1833 AC_CHECK_TOOL(WINDRES, [windres],
1834 [AC_MSG_ERROR([No resource compiler found.])])
1835 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1836 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1837 EMACSRES="emacs.res"
1838 case "$canonical" in
1839 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
1840 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
1842 if test "${opsys}" = "cygwin"; then
1843 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1844 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1845 # Tell the linker that emacs.res is an object (which we compile from
1846 # the rc file), not a linker script.
1847 W32_RES_LINK="-Wl,emacs.res"
1849 UPDATE_MANIFEST=update-game-score.exe.manifest
1850 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
1851 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
1852 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
1853 W32_RES_LINK="\$(EMACSRES)"
1854 CLIENTRES="emacsclient.res"
1855 CLIENTW="emacsclientw\$(EXEEXT)"
1856 FIRSTFILE_OBJ=firstfile.o
1859 LIBS_ECLIENT="-lcomctl32"
1860 LIB_WSOCK32="-lwsock32"
1861 NTLIB="ntlib.$ac_objext"
1862 XARGS_LIMIT="-s 10000"
1868 AC_SUBST(EMACS_MANIFEST)
1869 AC_SUBST(UPDATE_MANIFEST)
1872 AC_SUBST(W32_RES_LINK)
1873 AC_SUBST(FIRSTFILE_OBJ)
1876 AC_SUBST(LIBS_ECLIENT)
1877 AC_SUBST(LIB_WSOCK32)
1879 AC_SUBST(XARGS_LIMIT)
1881 if test "${HAVE_W32}" = "yes"; then
1886 ## $window_system is now set to the window system we will
1889 if test "$window_system" = none && test "$gl_gcc_warnings" = yes; then
1890 # Too many warnings for now.
1892 nw="$nw -Wsuggest-attribute=const"
1893 nw="$nw -Wsuggest-attribute=noreturn"
1894 gl_MANYWARN_COMPLEMENT([WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
1896 gl_WARN_ADD([-Wno-unused-variable])
1897 gl_WARN_ADD([-Wno-unused-but-set-variable])
1898 gl_WARN_ADD([-Wno-unused-but-set-parameter])
1906 case "${window_system}" in
1911 case "${with_x_toolkit}" in
1912 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1913 motif ) USE_X_TOOLKIT=MOTIF ;;
1915 term_header=gtkutil.h
1916 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1917 dnl USE_X_TOOLKIT is set.
1918 USE_X_TOOLKIT=none ;;
1919 gtk2 ) with_gtk2=yes
1920 term_header=gtkutil.h
1921 USE_X_TOOLKIT=none ;;
1922 gtk3 ) with_gtk3=yes
1923 term_header=gtkutil.h
1924 USE_X_TOOLKIT=none ;;
1925 no ) USE_X_TOOLKIT=none ;;
1926 dnl If user did not say whether to use a toolkit, make this decision later:
1927 dnl use the toolkit if we have gtk, or X11R5 or newer.
1928 * ) USE_X_TOOLKIT=maybe ;;
1932 term_header=nsterm.h
1935 term_header=w32term.h
1939 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1940 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1941 if test "$HAVE_XSERVER" = true ||
1942 test -n "$DISPLAY" ||
1943 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1944 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1945 were found. You should install the relevant development files for X
1946 and for the toolkit you want, such as Gtk+ or Motif. Also make
1947 sure you have development files for image handling, i.e.
1948 tiff, gif, jpeg, png and xpm.
1949 If you are sure you want Emacs compiled without X window support, pass
1955 # Does the opsystem file prohibit the use of the GNU malloc?
1956 # Assume not, until told otherwise.
1960 [whether malloc is Doug Lea style],
1961 [emacs_cv_var_doug_lea_malloc],
1962 [emacs_cv_var_doug_lea_malloc=no
1963 dnl Hooks do not work with address sanitization.
1964 if test "$emacs_cv_sanitize_address" != yes; then
1967 [[#include <malloc.h>
1968 static void hook (void) {}]],
1969 [[malloc_set_state (malloc_get_state ());
1970 __after_morecore_hook = hook;
1971 __malloc_initialize_hook = hook;]])],
1972 [emacs_cv_var_doug_lea_malloc=yes])])
1974 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1976 system_malloc=$emacs_cv_sanitize_address
1978 ## darwin ld insists on the use of malloc routines in the System framework.
1979 darwin|sol2-10) system_malloc=yes ;;
1983 if test "${system_malloc}" = "yes"; then
1984 AC_DEFINE([SYSTEM_MALLOC], 1,
1985 [Define to 1 to use the system memory allocator, even if it is not
1989 (The GNU allocators don't work with this system configuration.)"
1992 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1993 VMLIMIT_OBJ=vm-limit.o
1995 AC_CHECK_HEADERS([sys/vlimit.h])
1996 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
1999 [[extern char data_start[]; char ch;]],
2000 [[return data_start < &ch;]])],
2001 [emacs_cv_data_start=yes],
2002 [emacs_cv_data_start=no])])
2003 if test $emacs_cv_data_start = yes; then
2004 AC_DEFINE([HAVE_DATA_START], 1,
2005 [Define to 1 if data_start is the address of the start
2006 of the main data segment.])
2009 AC_SUBST(GMALLOC_OBJ)
2010 AC_SUBST(VMLIMIT_OBJ)
2012 if test "$doug_lea_malloc" = "yes" ; then
2013 if test "$GNU_MALLOC" = yes ; then
2015 (Using Doug Lea's new malloc from the GNU C Library.)"
2017 AC_DEFINE(DOUG_LEA_MALLOC, 1,
2018 [Define to 1 if the system memory allocator is Doug Lea style,
2019 with malloc hooks and malloc_set_state.])
2021 ## Use mmap directly for allocating larger buffers.
2022 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
2023 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
2024 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
2026 gnu*) REL_ALLOC=no ;;
2030 if test x"${REL_ALLOC}" = x; then
2031 REL_ALLOC=${GNU_MALLOC}
2034 use_mmap_for_buffers=no
2036 cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
2040 if test $use_mmap_for_buffers = yes; then
2041 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
2045 LIBS="$LIBS_SYSTEM $LIBS"
2047 dnl FIXME replace main with a function we actually want from this library.
2048 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
2050 dnl Check for the POSIX thread library.
2052 AC_CHECK_HEADERS_ONCE(pthread.h)
2053 if test "$ac_cv_header_pthread_h"; then
2054 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
2055 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
2056 dnl testing for pthread_kill if Emacs uses gmalloc.c.
2057 if test "$GMALLOC_OBJ" = gmalloc.o; then
2058 emacs_pthread_function=pthread_atfork
2060 emacs_pthread_function=pthread_kill
2063 AC_SEARCH_LIBS([$emacs_pthread_function], [pthread],
2064 [AC_DEFINE([HAVE_PTHREAD], [1],
2065 [Define to 1 if you have pthread (-lpthread).])])
2066 if test "X$LIBS" != "X$OLD_LIBS"; then
2067 eval LIB_PTHREAD=\$ac_cv_search_$emacs_pthread_function
2071 AC_SUBST([LIB_PTHREAD])
2073 dnl Check for need for bigtoc support on IBM AIX
2077 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
2079 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
2080 *) gdb_cv_bigtoc=-bbigtoc ;;
2083 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
2084 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
2089 # Change CFLAGS, CPPFLAGS, and LIBS temporarily so that C_SWITCH_X_SITE
2090 # is for the tests that follow. We set them back later on.
2092 REAL_CFLAGS="$CFLAGS"
2093 REAL_CPPFLAGS="$CPPFLAGS"
2096 if test "${HAVE_X11}" = "yes"; then
2097 DEFS="$C_SWITCH_X_SITE $DEFS"
2098 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2100 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2101 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2103 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2104 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2105 # but it's more convenient here to set LD_RUN_PATH since this
2106 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2107 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2108 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2112 if test "${opsys}" = "gnu-linux"; then
2113 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2114 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2115 [[XOpenDisplay ("foo");]])],
2116 [xgnu_linux_first_failure=no],
2117 [xgnu_linux_first_failure=yes])
2118 if test "${xgnu_linux_first_failure}" = "yes"; then
2119 OLD_CPPFLAGS="$CPPFLAGS"
2121 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2122 LIBS="$LIBS -b i486-linuxaout"
2123 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2124 [[XOpenDisplay ("foo");]])],
2125 [xgnu_linux_second_failure=no],
2126 [xgnu_linux_second_failure=yes])
2127 if test "${xgnu_linux_second_failure}" = "yes"; then
2128 # If we get the same failure with -b, there is no use adding -b.
2129 # So leave it out. This plays safe.
2132 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2133 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2136 CPPFLAGS=$OLD_CPPFLAGS
2143 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2144 # header files included from there.
2145 AC_MSG_CHECKING(for Xkb)
2146 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2147 #include <X11/XKBlib.h>]],
2148 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2149 emacs_xkb=yes, emacs_xkb=no)
2150 AC_MSG_RESULT($emacs_xkb)
2151 if test $emacs_xkb = yes; then
2152 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2155 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2156 XScreenNumberOfScreen)
2159 if test "${window_system}" = "x11"; then
2160 AC_MSG_CHECKING(X11 version 6)
2161 AC_CACHE_VAL(emacs_cv_x11_version_6,
2162 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2163 [[#if XlibSpecificationRelease < 6
2166 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2167 if test $emacs_cv_x11_version_6 = yes; then
2168 AC_MSG_RESULT(6 or newer)
2169 AC_DEFINE(HAVE_X11R6, 1,
2170 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2171 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2172 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2176 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2177 [Define if you have usable X11R6-style XIM support.])
2181 AC_MSG_RESULT(before 6)
2186 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
2188 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2189 if test "${with_rsvg}" != "no"; then
2190 RSVG_REQUIRED=2.11.0
2191 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2193 EMACS_CHECK_MODULES([RSVG], [$RSVG_MODULE])
2194 AC_SUBST(RSVG_CFLAGS)
2197 if test $HAVE_RSVG = yes; then
2198 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2199 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2200 # Windows loads librsvg dynamically
2201 if test "${opsys}" = "mingw32"; then
2209 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${HAVE_W32}" = "yes"; then
2210 if test "${with_imagemagick}" != "no"; then
2211 ## 6.3.5 is the earliest version known to work; see Bug#17339.
2212 ## 6.8.2 makes Emacs crash; see Bug#13867.
2213 IMAGEMAGICK_MODULE="Wand >= 6.3.5 Wand != 6.8.2"
2214 EMACS_CHECK_MODULES([IMAGEMAGICK], [$IMAGEMAGICK_MODULE])
2215 AC_SUBST(IMAGEMAGICK_CFLAGS)
2216 AC_SUBST(IMAGEMAGICK_LIBS)
2218 if test $HAVE_IMAGEMAGICK = yes; then
2219 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2222 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2223 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2224 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
2234 gtk_term_header=$term_header
2237 if test "${opsys}" != "mingw32"; then
2238 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2241 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2243 dnl Checks for libraries.
2244 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2245 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2246 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2247 AC_MSG_ERROR($GTK_PKG_ERRORS)
2249 if test "$pkg_check_gtk" = "yes"; then
2250 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2251 GTK_OBJ=emacsgtkfixed.o
2252 gtk_term_header=gtkutil.h
2253 USE_GTK_TOOLKIT="GTK3"
2254 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2255 AC_DEFINE([GDK_DISABLE_DEPRECATION_WARNINGS], [1],
2256 [Define to 1 to disable GTK+/GDK deprecation warnings.])
2257 AC_DEFINE([GLIB_DISABLE_DEPRECATION_WARNINGS], [1],
2258 [Define to 1 to disable Glib deprecation warnings.])
2262 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2266 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2269 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2271 dnl Checks for libraries.
2272 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2273 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2274 if test "$pkg_check_gtk" = "no" &&
2275 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2277 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2279 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2286 if test x"$pkg_check_gtk" = xyes; then
2289 CFLAGS="$CFLAGS $GTK_CFLAGS"
2290 LIBS="$GTK_LIBS $LIBS"
2291 dnl Try to compile a simple GTK program.
2292 AC_MSG_CHECKING([whether GTK compiles])
2296 [[/* Check the Gtk and Glib APIs. */
2297 #include <gtk/gtk.h>
2298 #include <glib-object.h>
2300 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2304 GtkSettings *gs = 0;
2305 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2306 strict C prohibits this. Use gtk_main_iteration to test that the
2307 libraries are there. */
2308 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2309 0, 0, 0, G_CALLBACK (callback), 0))
2310 gtk_main_iteration ();
2313 AC_MSG_RESULT([$GTK_COMPILES])
2314 if test "${GTK_COMPILES}" != "yes"; then
2316 if test "$USE_X_TOOLKIT" != "maybe"; then
2317 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2320 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2322 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2323 GTK_OBJ="gtkutil.o $GTK_OBJ"
2324 term_header=$gtk_term_header
2326 if "$PKG_CONFIG" --atleast-version=2.10 gtk+-2.0; then
2329 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2330 closing open displays. This is no problem if you just use
2331 one display, but if you use more than one and close one of them
2341 if test "${HAVE_GTK}" = "yes"; then
2343 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2344 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2345 if test "$with_toolkit_scroll_bars" != no; then
2346 with_toolkit_scroll_bars=yes
2349 dnl Check if we have the old file selection dialog declared and
2350 dnl in the link library. In 2.x it may be in the library,
2351 dnl but not declared if deprecated featured has been selected out.
2352 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2353 HAVE_GTK_FILE_SELECTION=no
2354 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2355 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2356 #include <gtk/gtk.h>])
2357 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2358 AC_CHECK_FUNCS(gtk_file_selection_new)
2361 dnl Same as above for gtk_handle_box.
2362 HAVE_GTK_HANDLE_BOX=no
2363 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2364 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2365 #include <gtk/gtk.h>])
2366 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2367 AC_CHECK_FUNCS(gtk_handle_box_new)
2370 dnl Same as above for gtk_tearoff_menu_item.
2371 HAVE_GTK_TEAROFF_MENU_ITEM=no
2372 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2373 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2374 #include <gtk/gtk.h>])
2375 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2376 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2379 dnl Check for functions introduced in 2.14 and later.
2380 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2381 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2382 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2383 gtk_orientable_set_orientation \
2384 gtk_window_set_has_resize_grip)
2386 term_header=gtkutil.h
2392 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2393 dnl other platforms.
2396 if test "${with_dbus}" = "yes"; then
2397 EMACS_CHECK_MODULES([DBUS], [dbus-1 >= 1.0])
2398 if test "$HAVE_DBUS" = yes; then
2399 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2400 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2401 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2404 LIBS="$LIBS $DBUS_LIBS"
2405 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2406 dbus_type_is_valid \
2407 dbus_validate_bus_name \
2408 dbus_validate_path \
2409 dbus_validate_interface \
2410 dbus_validate_member)
2415 AC_SUBST(DBUS_CFLAGS)
2419 dnl GSettings has been tested under GNU/Linux only.
2421 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2422 EMACS_CHECK_MODULES([GSETTINGS], [gio-2.0 >= 2.26])
2423 if test "$HAVE_GSETTINGS" = "yes"; then
2425 CFLAGS="$CFLAGS $GSETTINGS_CFLAGS"
2427 LIBS="$LIBS $GSETTINGS_LIBS"
2428 AC_MSG_CHECKING([whether GSettings is in gio])
2431 [[/* Check that gsettings really is present. */
2432 #include <glib-object.h>
2433 #include <gio/gio.h>
2436 GSettings *settings;
2437 GVariant *val = g_settings_get_value (settings, "");
2439 [], HAVE_GSETTINGS=no)
2440 AC_MSG_RESULT([$HAVE_GSETTINGS])
2442 if test "$HAVE_GSETTINGS" = "yes"; then
2443 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2444 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2445 SETTINGS_LIBS="$GSETTINGS_LIBS"
2452 dnl GConf has been tested under GNU/Linux only.
2453 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2455 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2456 EMACS_CHECK_MODULES([GCONF], [gconf-2.0 >= 2.13])
2457 if test "$HAVE_GCONF" = yes; then
2458 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2459 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2460 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2461 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2465 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2466 EMACS_CHECK_MODULES([GOBJECT], [gobject-2.0 >= 2.0])
2467 if test "$HAVE_GOBJECT" = "yes"; then
2468 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2469 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2471 SAVE_CFLAGS="$CFLAGS"
2473 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2474 LIBS="$SETTINGS_LIBS $LIBS"
2475 CFLAGS="$SAVE_CFLAGS"
2478 AC_SUBST(SETTINGS_CFLAGS)
2479 AC_SUBST(SETTINGS_LIBS)
2482 dnl SELinux is available for GNU/Linux only.
2485 if test "${with_selinux}" = "yes"; then
2486 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2487 if test "$HAVE_LIBSELINUX" = yes; then
2488 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2489 LIBSELINUX_LIBS=-lselinux
2492 AC_SUBST(LIBSELINUX_LIBS)
2496 if test "${with_gnutls}" = "yes" ; then
2497 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 3.0.0],
2498 [HAVE_GNUTLS3=yes], [HAVE_GNUTLS3=no])
2499 if test "${HAVE_GNUTLS3}" = "yes"; then
2500 AC_DEFINE(HAVE_GNUTLS3, 1, [Define if using GnuTLS v3.])
2503 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6],
2504 [HAVE_GNUTLS=yes], [HAVE_GNUTLS=no])
2506 if test "${HAVE_GNUTLS}" = "yes"; then
2507 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2510 # Windows loads GnuTLS dynamically
2511 if test "${opsys}" = "mingw32"; then
2516 AC_SUBST(LIBGNUTLS_LIBS)
2517 AC_SUBST(LIBGNUTLS_CFLAGS)
2522 dnl FIXME? Don't auto-detect on NS, but do allow someone to specify
2523 dnl a particular library. This doesn't make much sense?
2524 if test "${with_ns}" = yes && test ${with_file_notification} = yes; then
2525 with_file_notification=no
2528 dnl MS Windows native file monitor is available for mingw32 only.
2529 case $with_file_notification,$opsys in
2530 w32,* | yes,mingw32)
2531 AC_CHECK_HEADER(windows.h)
2532 if test "$ac_cv_header_windows_h" = yes ; then
2533 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2534 NOTIFY_OBJ=w32notify.o
2535 NOTIFY_SUMMARY="yes (w32)"
2539 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2540 dnl has been added in glib 2.24. It has been tested under
2541 dnl GNU/Linux only. We take precedence over inotify, but this makes
2542 dnl only sense when glib has been compiled with inotify support. How
2544 case $with_file_notification,$NOTIFY_OBJ in
2546 EMACS_CHECK_MODULES([GFILENOTIFY], [gio-2.0 >= 2.24])
2547 if test "$HAVE_GFILENOTIFY" = "yes"; then
2548 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2549 NOTIFY_OBJ=gfilenotify.o
2550 NOTIFY_SUMMARY="yes -lgio (gfile)"
2554 dnl inotify is only available on GNU/Linux.
2555 case $with_file_notification,$NOTIFY_OBJ in
2557 AC_CHECK_HEADER(sys/inotify.h)
2558 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2559 AC_CHECK_FUNC(inotify_init1)
2560 if test "$ac_cv_func_inotify_init1" = yes; then
2561 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2562 NOTIFY_OBJ=inotify.o
2563 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2568 case $with_file_notification,$NOTIFY_OBJ in
2569 yes,* | no,* | *,?*) ;;
2570 *) AC_MSG_ERROR([File notification `$with_file_notification' requested but requirements not found.]) ;;
2573 if test -n "$NOTIFY_OBJ"; then
2574 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2576 AC_SUBST(NOTIFY_OBJ)
2577 AC_SUBST(GFILENOTIFY_CFLAGS)
2578 AC_SUBST(GFILENOTIFY_LIBS)
2580 dnl Do not put whitespace before the #include statements below.
2581 dnl Older compilers (eg sunos4 cc) choke on it.
2584 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2585 if test "$with_xaw3d" != no; then
2586 AC_CACHE_VAL(emacs_cv_xaw3d,
2587 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2588 #include <X11/Intrinsic.h>
2589 #include <X11/Xaw3d/Simple.h>]],
2591 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2592 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2593 emacs_cv_xaw3d=no)])
2597 if test $emacs_cv_xaw3d = yes; then
2598 AC_MSG_CHECKING(for xaw3d)
2599 AC_MSG_RESULT([yes; using Lucid toolkit])
2603 AC_DEFINE(HAVE_XAW3D, 1,
2604 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2606 AC_MSG_CHECKING(for xaw3d)
2608 AC_MSG_CHECKING(for libXaw)
2609 AC_CACHE_VAL(emacs_cv_xaw,
2610 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2611 #include <X11/Intrinsic.h>
2612 #include <X11/Xaw/Simple.h>]],
2616 if test $emacs_cv_xaw = yes; then
2617 AC_MSG_RESULT([yes; using Lucid toolkit])
2620 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2621 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2623 AC_MSG_ERROR([No X toolkit could be found.
2624 If you are sure you want Emacs compiled without an X toolkit, pass
2626 to configure. Otherwise, install the development libraries for the toolkit
2627 that you want to use (e.g. Gtk+) and re-run configure.])
2632 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2636 if test "${USE_X_TOOLKIT}" != "none"; then
2637 AC_MSG_CHECKING(X11 toolkit version)
2638 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2639 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2640 [[#if XtSpecificationRelease < 6
2643 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2644 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2645 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2646 AC_MSG_RESULT(6 or newer)
2647 AC_DEFINE(HAVE_X11XTR6, 1,
2648 [Define to 1 if you have the X11R6 or newer version of Xt.])
2649 LIBXTR6="-lSM -lICE"
2651 ## Use libw.a along with X11R6 Xt.
2652 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2655 AC_MSG_RESULT(before 6)
2658 dnl If using toolkit, check whether libXmu.a exists.
2659 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2661 if test x$HAVE_X11XTR6 = xyes; then
2662 OTHERLIBS='-lXt -lSM -lICE'
2666 AC_SEARCH_LIBS([XmuConvertStandardSelection], [Xmu], [], [], [$OTHERLIBS])
2667 if test "X$LIBS" != "X$OLDLIBS"; then
2668 LIBXMU=$ac_cv_search_XmuConvertStandardSelection
2671 dnl ac_cv_search_XmuConvertStandardSelection is also referenced below.
2677 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2678 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2679 if test -d /usr/include/openmotif; then
2680 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2681 emacs_cv_openmotif=yes
2682 case "$canonical" in
2683 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2684 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2687 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2690 emacs_cv_openmotif=no
2692 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2693 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2694 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2697 Motif version prior to 2.1.
2699 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2700 if test $emacs_cv_motif_version_2_1 = yes; then
2701 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2702 if test x$emacs_cv_openmotif = xyes; then
2703 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2706 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2707 # We put this in CFLAGS temporarily to precede other -I options
2708 # that might be in CFLAGS temporarily.
2709 # We put this in CPPFLAGS where it precedes the other -I options.
2710 OLD_CPPFLAGS=$CPPFLAGS
2712 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2713 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2714 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2716 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2717 if test $emacs_cv_lesstif = yes; then
2718 # Make sure this -I option remains in CPPFLAGS after it is set
2719 # back to REAL_CPPFLAGS.
2720 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2721 # have those other -I options anyway. Ultimately, having this
2722 # directory ultimately in CPPFLAGS will be enough.
2723 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2724 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2727 CPPFLAGS=$OLD_CPPFLAGS
2730 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2731 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2734 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2735 dnl using Motif or Xaw3d is available, and unless
2736 dnl --with-toolkit-scroll-bars=no was specified.
2738 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2739 [Define to 1 if we should use toolkit scroll bars.])dnl
2740 USE_TOOLKIT_SCROLL_BARS=no
2741 if test "${with_toolkit_scroll_bars}" != "no"; then
2742 if test "${USE_X_TOOLKIT}" != "none"; then
2743 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2744 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2746 USE_TOOLKIT_SCROLL_BARS=yes
2747 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2748 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2749 USE_TOOLKIT_SCROLL_BARS=yes
2751 elif test "${HAVE_GTK}" = "yes"; then
2752 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2753 USE_TOOLKIT_SCROLL_BARS=yes
2754 elif test "${HAVE_NS}" = "yes"; then
2755 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2756 USE_TOOLKIT_SCROLL_BARS=yes
2757 elif test "${HAVE_W32}" = "yes"; then
2758 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2759 USE_TOOLKIT_SCROLL_BARS=yes
2763 dnl See if XIM is available.
2764 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2765 #include <X11/Xlib.h>
2766 #include <X11/Xresource.h>]],
2767 [[XIMProc callback;]])],
2769 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2772 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2774 if test "${with_xim}" != "no"; then
2775 AC_DEFINE(USE_XIM, 1,
2776 [Define to 1 if we should use XIM, if it is available.])
2780 if test "${HAVE_XIM}" != "no"; then
2782 if test "$GCC" = yes; then
2783 CFLAGS="$CFLAGS --pedantic-errors"
2785 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2786 #include <X11/Xlib.h>
2787 #include <X11/Xresource.h>]],
2793 XPointer *client_data;
2795 /* If we're not using GCC, it's probably not XFree86, and this is
2796 probably right, but we can't use something like --pedantic-errors. */
2797 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2798 char*, XIMProc, XPointer*);
2800 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2802 [emacs_cv_arg6_star=yes])
2803 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2804 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2805 either XPointer or XPointer*.])dnl
2806 if test "$emacs_cv_arg6_star" = yes; then
2807 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2809 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2814 ### Start of font-backend (under any platform) section.
2815 # (nothing here yet -- this is a placeholder)
2816 ### End of font-backend (under any platform) section.
2818 ### Start of font-backend (under X11) section.
2819 if test "${HAVE_X11}" = "yes"; then
2820 EMACS_CHECK_MODULES([FONTCONFIG], [fontconfig >= 2.2.0],
2821 [HAVE_FC=yes], [HAVE_FC=no])
2823 ## Use -lXft if available, unless `--with-xft=no'.
2825 if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2828 if test "x${with_xft}" != "xno"; then
2830 EMACS_CHECK_MODULES([XFT], [xft >= 0.13.0], [], [HAVE_XFT=no])
2831 ## Because xftfont.c uses XRenderQueryExtension, we also
2832 ## need to link to -lXrender.
2834 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2835 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2836 OLD_CPPFLAGS="$CPPFLAGS"
2837 OLD_CFLAGS="$CFLAGS"
2839 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2840 CFLAGS="$CFLAGS $XFT_CFLAGS"
2841 XFT_LIBS="-lXrender $XFT_LIBS"
2842 LIBS="$XFT_LIBS $LIBS"
2843 AC_CHECK_HEADER(X11/Xft/Xft.h,
2844 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
2845 [[#include <X11/X.h>]])
2847 if test "${HAVE_XFT}" = "yes"; then
2848 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2850 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2851 fi # "${HAVE_XFT}" = "yes"
2852 CPPFLAGS=$OLD_CPPFLAGS
2855 fi # "$HAVE_XFT" != no
2856 fi # "x${with_xft}" != "xno"
2858 ## We used to allow building with FreeType and without Xft.
2859 ## However, the ftx font backend driver is not in good shape.
2860 if test "$HAVE_XFT" != "yes"; then
2861 dnl For the "Does Emacs use" message at the end.
2865 dnl Strict linkers fail with
2866 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2867 dnl if -lfreetype is not specified.
2868 dnl The following is needed to set FREETYPE_LIBS.
2869 EMACS_CHECK_MODULES([FREETYPE], [freetype2])
2871 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2875 if test "${HAVE_FREETYPE}" = "yes"; then
2876 AC_DEFINE(HAVE_FREETYPE, 1,
2877 [Define to 1 if using the freetype and fontconfig libraries.])
2878 if test "${with_libotf}" != "no"; then
2879 EMACS_CHECK_MODULES([LIBOTF], [libotf])
2880 if test "$HAVE_LIBOTF" = "yes"; then
2881 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2882 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2883 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2884 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2885 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2886 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2887 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2891 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2892 dnl Does the new font backend require it, or can it work without it?
2896 if test "${HAVE_LIBOTF}" = yes; then
2897 if test "${with_m17n_flt}" != "no"; then
2898 EMACS_CHECK_MODULES([M17N_FLT], [m17n-flt])
2899 if test "$HAVE_M17N_FLT" = "yes"; then
2900 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2911 ### End of font-backend (under X11) section.
2913 AC_SUBST(FREETYPE_CFLAGS)
2914 AC_SUBST(FREETYPE_LIBS)
2915 AC_SUBST(FONTCONFIG_CFLAGS)
2916 AC_SUBST(FONTCONFIG_LIBS)
2917 AC_SUBST(LIBOTF_CFLAGS)
2918 AC_SUBST(LIBOTF_LIBS)
2919 AC_SUBST(M17N_FLT_CFLAGS)
2920 AC_SUBST(M17N_FLT_LIBS)
2922 ### Use -lXpm if available, unless `--with-xpm=no'.
2923 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
2926 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
2927 if test "${with_xpm}" != "no"; then
2928 SAVE_CPPFLAGS="$CPPFLAGS"
2929 SAVE_LDFLAGS="$LDFLAGS"
2930 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
2931 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
2932 AC_CHECK_HEADER(X11/xpm.h,
2933 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
2934 if test "${HAVE_XPM}" = "yes"; then
2935 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2936 AC_EGREP_CPP(no_return_alloc_pixels,
2937 [#include "X11/xpm.h"
2938 #ifndef XpmReturnAllocPixels
2939 no_return_alloc_pixels
2941 ], HAVE_XPM=no, HAVE_XPM=yes)
2943 if test "${HAVE_XPM}" = "yes"; then
2944 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
2948 CPPFLAGS="$SAVE_CPPFLAGS"
2949 LDFLAGS="$SAVE_LDFLAGS"
2954 if test "${HAVE_XPM}" = "yes"; then
2955 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2960 if test "${HAVE_X11}" = "yes"; then
2961 if test "${with_xpm}" != "no"; then
2962 AC_CHECK_HEADER(X11/xpm.h,
2963 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2964 if test "${HAVE_XPM}" = "yes"; then
2965 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2966 AC_EGREP_CPP(no_return_alloc_pixels,
2967 [#include "X11/xpm.h"
2968 #ifndef XpmReturnAllocPixels
2969 no_return_alloc_pixels
2971 ], HAVE_XPM=no, HAVE_XPM=yes)
2973 if test "${HAVE_XPM}" = "yes"; then
2981 if test "${HAVE_XPM}" = "yes"; then
2982 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2987 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
2988 ### slightly different requirements wrt image libraries (it doesn't
2989 ### use -lXpm because it loads the xpm shared library dynamically at
2991 if test "${opsys}" = "mingw32"; then
2992 if test "${with_xpm}" != "no"; then
2993 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
2997 if test "${HAVE_XPM}" = "yes"; then
2998 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3004 ### Use -ljpeg if available, unless `--with-jpeg=no'.
3005 ### mingw32 doesn't use -ljpeg, since it loads the library dynamically.
3008 if test "${opsys}" = "mingw32"; then
3009 if test "${with_jpeg}" != "no"; then
3010 dnl Checking for jpeglib.h can lose because of a redefinition of
3012 AC_CHECK_HEADER(jerror.h, HAVE_JPEG=yes, HAVE_JPEG=no)
3014 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
3015 if test "${HAVE_JPEG}" = "yes"; then
3016 AC_DEFINE(HAVE_JPEG)
3017 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
3018 [#include <jpeglib.h>
3019 version=JPEG_LIB_VERSION
3021 [AC_DEFINE(HAVE_JPEG)],
3022 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
3025 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3026 if test "${with_jpeg}" != "no"; then
3027 dnl Checking for jpeglib.h can lose because of a redefinition of
3029 AC_CHECK_HEADER(jerror.h,
3030 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
3033 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
3034 if test "${HAVE_JPEG}" = "yes"; then
3035 AC_DEFINE(HAVE_JPEG)
3036 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
3037 [#include <jpeglib.h>
3038 version=JPEG_LIB_VERSION
3040 [AC_DEFINE(HAVE_JPEG)],
3041 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
3044 if test "${HAVE_JPEG}" = "yes"; then
3052 if test "${with_zlib}" != "no"; then
3054 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
3056 case $ac_cv_search_inflateEnd in
3057 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3060 if test "${HAVE_ZLIB}" = "yes"; then
3061 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3062 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3063 if test "${opsys}" = "mingw32"; then
3069 ### Use -lpng if available, unless `--with-png=no'.
3073 if test "${with_png}" != no; then
3074 # mingw32 loads the library dynamically.
3075 if test "$opsys" = mingw32; then
3076 AC_CHECK_HEADER([png.h], [HAVE_PNG=yes])
3077 elif png_cflags=`(libpng-config --cflags) 2>&AS_MESSAGE_LOG_FD` &&
3078 png_libs=`(libpng-config --libs) 2>&AS_MESSAGE_LOG_FD`
3081 PNG_CFLAGS=`AS_ECHO(["$png_cflags"]) | sed -e "$edit_cflags"`
3084 # libpng-config does not work; configure by hand.
3085 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
3086 # in /usr/include/libpng.
3087 AC_CHECK_HEADERS([png.h libpng/png.h],
3088 [AC_CHECK_LIB([png], [png_get_channels],
3091 if test "$ac_cv_header_png_h" != yes; then
3092 PNG_CFLAGS=-I/usr/include/libpng
3097 # $LIBPNG requires explicit -lz in some cases.
3098 # We don't know what those cases are, exactly, so play it safe and
3099 # append -lz to any nonempty $LIBPNG, unless we're already using LIBZ.
3100 if test -n "$LIBPNG" && test -z "$LIBZ"; then
3101 LIBPNG="$LIBPNG -lz"
3104 if test $HAVE_PNG = yes; then
3105 AC_DEFINE([HAVE_PNG], [1], [Define to 1 if you have the png library.])
3108 CFLAGS="$CFLAGS $PNG_CFLAGS"
3109 AC_CHECK_DECL([png_longjmp],
3111 [AC_DEFINE([PNG_DEPSTRUCT], [],
3112 [Define to empty to suppress deprecation warnings when building
3113 with --enable-gcc-warnings and with libpng versions before 1.5,
3114 which lack png_longjmp.])],
3120 AC_SUBST(PNG_CFLAGS)
3122 ### Use -ltiff if available, unless `--with-tiff=no'.
3123 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3126 if test "${opsys}" = "mingw32"; then
3127 if test "${with_tiff}" != "no"; then
3128 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3130 if test "${HAVE_TIFF}" = "yes"; then
3131 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3133 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3134 if test "${with_tiff}" != "no"; then
3135 AC_CHECK_HEADER(tiffio.h,
3137 # At least one tiff package requires the jpeg library.
3138 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3139 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3142 if test "${HAVE_TIFF}" = "yes"; then
3143 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3144 dnl FIXME -lz -lm, as per libpng?
3150 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
3151 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3154 if test "${opsys}" = "mingw32"; then
3155 if test "${with_gif}" != "no"; then
3156 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3158 if test "${HAVE_GIF}" = "yes"; then
3159 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3161 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3162 || test "${HAVE_W32}" = "yes"; then
3163 AC_CHECK_HEADER(gif_lib.h,
3164 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3165 # Earlier versions can crash Emacs, but version 5.0 removes EGifPutExtensionLast.
3166 [AC_CHECK_LIB(gif, GifMakeMapObject, HAVE_GIF=yes,
3167 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])])
3169 if test "$HAVE_GIF" = yes; then
3171 elif test "$HAVE_GIF" = maybe; then
3172 # If gif_lib.h but no libgif, try libungif.
3173 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3174 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3177 if test "${HAVE_GIF}" = "yes"; then
3178 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3183 dnl Check for required libraries.
3184 if test "${HAVE_X11}" = "yes"; then
3187 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3188 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3189 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3190 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3191 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3192 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3193 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3194 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3195 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3196 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3198 if test "X${MISSING}" != X; then
3199 AC_MSG_ERROR([The following required libraries were not found:
3201 Maybe some development libraries/packages are missing?
3202 If you don't want to link with them give
3204 as options to configure])
3208 ### Use -lgpm if available, unless `--with-gpm=no'.
3211 if test "${with_gpm}" != "no"; then
3212 AC_CHECK_HEADER(gpm.h,
3213 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3215 if test "${HAVE_GPM}" = "yes"; then
3216 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3222 dnl Check for malloc/malloc.h on darwin
3223 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3226 ### Use NeXTstep API to implement GUI.
3227 if test "${HAVE_NS}" = "yes"; then
3228 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
3229 if test "${NS_IMPL_COCOA}" = "yes"; then
3230 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
3232 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3233 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3234 # See also .m.o rule in Makefile.in */
3235 # FIXME: are all these flags really needed? Document here why. */
3236 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3237 ## Extra CFLAGS applied to src/*.m files.
3238 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3243 ### Use session management (-lSM -lICE) if available
3246 if test "${HAVE_X11}" = "yes"; then
3247 AC_CHECK_HEADER(X11/SM/SMlib.h,
3248 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3250 if test "${HAVE_X_SM}" = "yes"; then
3251 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3257 ### Use XRandr (-lXrandr) if available
3259 if test "${HAVE_X11}" = "yes"; then
3260 XRANDR_REQUIRED=1.2.2
3261 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3262 EMACS_CHECK_MODULES([XRANDR], [$XRANDR_MODULES])
3263 if test $HAVE_XRANDR = no; then
3264 # Test old way in case pkg-config doesn't have it (older machines).
3265 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3266 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)])
3267 if test $HAVE_XRANDR = yes; then
3268 XRANDR_LIBS=-lXrandr
3271 if test $HAVE_XRANDR = yes; then
3272 SAVE_CFLAGS="$CFLAGS"
3274 CFLAGS="$XRANDR_CFLAGS $CFLAGS"
3275 LIBS="$XRANDR_LIBS $LIBS"
3276 AC_CHECK_FUNCS(XRRGetOutputPrimary XRRGetScreenResourcesCurrent)
3277 CFLAGS="$SAVE_CFLAGS"
3280 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3283 AC_SUBST(XRANDR_CFLAGS)
3284 AC_SUBST(XRANDR_LIBS)
3286 ### Use Xinerama (-lXinerama) if available
3288 if test "${HAVE_X11}" = "yes"; then
3289 XINERAMA_REQUIRED=1.0.2
3290 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3291 EMACS_CHECK_MODULES([XINERAMA], [$XINERAMA_MODULES])
3292 if test $HAVE_XINERAMA = no; then
3293 # Test old way in case pkg-config doesn't have it (older machines).
3294 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3295 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3296 if test $HAVE_XINERAMA = yes; then
3297 XINERAMA_LIBS=-lXinerama
3300 if test $HAVE_XINERAMA = yes; then
3301 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3304 AC_SUBST(XINERAMA_CFLAGS)
3305 AC_SUBST(XINERAMA_LIBS)
3307 ### Use Xfixes (-lXfixes) if available
3309 if test "${HAVE_X11}" = "yes"; then
3310 XFIXES_REQUIRED=4.0.0
3311 XFIXES_MODULES="xfixes >= $XFIXES_REQUIRED"
3312 EMACS_CHECK_MODULES([XFIXES], [$XFIXES_MODULES])
3313 if test $HAVE_XFIXES = no; then
3314 # Test old way in case pkg-config doesn't have it (older machines).
3315 AC_CHECK_HEADER(X11/extensions/Xfixes.h,
3316 [AC_CHECK_LIB(Xfixes, XFixesHideCursor, HAVE_XFIXES=yes)])
3317 if test $HAVE_XFIXES = yes; then
3318 XFIXES_LIBS=-lXfixes
3321 if test $HAVE_XFIXES = yes; then
3322 AC_DEFINE(HAVE_XFIXES, 1, [Define to 1 if you have the Xfixes extension.])
3325 AC_SUBST(XFIXES_CFLAGS)
3326 AC_SUBST(XFIXES_LIBS)
3328 ### Use libxml (-lxml2) if available
3329 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3331 if test "${with_xml2}" != "no"; then
3332 ### I'm not sure what the version number should be, so I just guessed.
3333 EMACS_CHECK_MODULES([LIBXML2], [libxml-2.0 > 2.6.17])
3334 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3335 if test "${HAVE_LIBXML2}" != "yes" -a "$opsys" = "darwin"; then
3336 SAVE_CPPFLAGS="$CPPFLAGS"
3337 CPPFLAGS="$CPPFLAGS -I$xcsdkdir/usr/include/libxml2"
3338 AC_CHECK_HEADER(libxml/HTMLparser.h,
3339 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3340 [#include <libxml/HTMLparser.h>])])
3341 CPPFLAGS="$SAVE_CPPFLAGS"
3342 if test "${HAVE_LIBXML2}" = "yes"; then
3343 LIBXML2_CFLAGS="-I'$xcsdkdir/usr/include/libxml2'"
3344 LIBXML2_LIBS="-lxml2"
3347 if test "${HAVE_LIBXML2}" = "yes"; then
3348 if test "${opsys}" != "mingw32"; then
3349 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no
3354 if test "${HAVE_LIBXML2}" = "yes"; then
3355 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3362 AC_SUBST(LIBXML2_LIBS)
3363 AC_SUBST(LIBXML2_CFLAGS)
3365 # If netdb.h doesn't declare h_errno, we must declare it by hand.
3366 # On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
3367 if test "${opsys}" = "mingw32"; then
3368 emacs_cv_netdb_declares_h_errno=yes
3370 AC_CACHE_CHECK(whether netdb declares h_errno,
3371 emacs_cv_netdb_declares_h_errno,
3372 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
3373 [[return h_errno;]])],
3374 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
3375 if test $emacs_cv_netdb_declares_h_errno = yes; then
3376 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
3379 # Check for mail-locking functions in a "mail" library. Probably this should
3380 # have the same check as for liblockfile below.
3381 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
3382 if test $have_mail = yes; then
3384 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
3387 LIBS="$LIBS_MAIL $LIBS"
3388 AC_CHECK_FUNCS(touchlock)
3393 dnl Debian, at least:
3394 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
3395 if test $have_lockfile = yes; then
3396 LIBS_MAIL=-llockfile
3397 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
3399 # If we have the shared liblockfile, assume we must use it for mail
3400 # locking (e.g. Debian). If we couldn't link against liblockfile
3401 # (no liblockfile.a installed), ensure that we don't need to.
3402 dnl This works for files generally, not just executables.
3403 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3404 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
3405 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
3406 if test $ac_cv_prog_liblockfile = yes; then
3407 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3408 This probably means that movemail could lose mail.
3409 There may be a `development' package to install containing liblockfile.])
3412 AC_CHECK_HEADERS_ONCE(maillock.h)
3415 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3416 ## interlock access to the mail spool. The alternative is a lock file named
3417 ## /usr/spool/mail/$USER.lock.
3420 aix4-2) mail_lock="lockf" ;;
3422 gnu|freebsd|dragonfly|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
3424 ## On GNU/Linux systems, both methods are used by various mail programs.
3425 ## I assume most people are using newer mailers that have heard of flock.
3426 ## Change this if you need to.
3427 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
3428 ## configure gets the right answers, and that means *NOT* using flock.
3429 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3430 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
3431 ## Debian maintainer hasn't provided a clean fix for Emacs.
3432 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
3433 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3434 ## correct logic. -- fx
3435 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3436 ## liblockfile is a Free Software replacement for libmail, used on
3437 ## Debian systems and elsewhere. -rfr.
3440 if test $have_mail = yes || test $have_lockfile = yes; then
3441 test $ac_cv_header_maillock_h = yes && mail_lock=no
3446 mail_lock="none-needed" ;;
3450 case "$mail_lock" in
3451 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3453 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3457 *) BLESSMAIL_TARGET="need-blessmail" ;;
3459 AC_SUBST(BLESSMAIL_TARGET)
3462 LIBS="$LIB_MATH $LIBS"
3463 AC_CHECK_FUNCS(accept4 gethostname \
3464 getrusage get_current_dir_name \
3465 lrand48 random rint \
3466 select getpagesize setlocale \
3467 getrlimit setrlimit shutdown getaddrinfo \
3468 strsignal setitimer \
3469 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
3470 gai_strerror getline getdelim sync \
3471 getpwent endpwent getgrent endgrent \
3472 cfmakeraw cfsetspeed copysign __executable_start log2)
3475 dnl No need to check for aligned_alloc and posix_memalign if using
3476 dnl gmalloc.o, as it supplies them. Don't use these functions on
3477 dnl Darwin as they are incompatible with unexmacosx.c.
3478 if test -z "$GMALLOC_OBJ" && test "$opsys" != darwin; then
3479 AC_CHECK_FUNCS([aligned_alloc posix_memalign], [break])
3482 dnl Cannot use AC_CHECK_FUNCS
3483 AC_CACHE_CHECK([for __builtin_unwind_init],
3484 emacs_cv_func___builtin_unwind_init,
3485 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3486 emacs_cv_func___builtin_unwind_init=yes,
3487 emacs_cv_func___builtin_unwind_init=no)])
3488 if test $emacs_cv_func___builtin_unwind_init = yes; then
3489 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3490 [Define to 1 if you have the `__builtin_unwind_init' function.])
3493 AC_CHECK_HEADERS_ONCE(sys/un.h)
3498 AC_CHECK_FUNCS(grantpt)
3500 # PTY-related GNU extensions.
3501 AC_CHECK_FUNCS(getpt posix_openpt)
3503 # Check this now, so that we will NOT find the above functions in ncurses.
3504 # That is because we have not set up to link ncurses in lib-src.
3505 # It's better to believe a function is not available
3506 # than to expect to find it in ncurses.
3507 # Also we need tputs and friends to be able to build at all.
3508 AC_MSG_CHECKING([for library containing tputs])
3509 # Run a test program that contains a call to tputs, a call that is
3510 # never executed. This tests whether a pre-'main' dynamic linker
3511 # works with the library. It's too much trouble to actually call
3512 # tputs in the test program, due to portability hassles. When
3513 # cross-compiling, assume the test program will run if it links.
3514 AC_DEFUN([tputs_link_source], [
3516 [[extern void tputs (const char *, int, int (*)(int));
3517 int main (int argc, char **argv)
3520 tputs (argv[0], 0, 0);
3524 if test "${opsys}" = "mingw32"; then
3527 # Maybe curses should be tried earlier?
3528 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3529 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3531 if test -z "$tputs_library"; then
3535 LIBS_TERMCAP=-l$tputs_library
3537 LIBS="$LIBS_TERMCAP $LIBS"
3539 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3540 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3542 if test "X$msg" != Xno; then
3547 AC_MSG_RESULT([$msg])
3548 if test "X$msg" = Xno; then
3549 AC_MSG_ERROR([The required function `tputs' was not found in any library.
3550 The following libraries were tried (in order):
3551 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3552 Please try installing whichever of these libraries is most appropriate
3553 for your system, together with its header files.
3554 For example, a libncurses-dev(el) or similar package.])
3557 ## Use termcap instead of terminfo?
3558 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3560 ## FIXME? In the cases below where we unconditionally set
3561 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3562 ## if that was found above to have tputs.
3563 ## Should we use the gnu* logic everywhere?
3565 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3566 ## The ncurses library has been moved out of the System framework in
3567 ## Mac OS X 10.2. So if configure detects it, set the command-line
3568 ## option to use it.
3569 darwin) LIBS_TERMCAP="-lncurses" ;;
3571 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3574 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3575 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3576 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3577 [[#if __FreeBSD_version < 400000
3580 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3582 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3584 if test $emacs_cv_freebsd_terminfo = yes; then
3585 LIBS_TERMCAP="-lncurses"
3588 LIBS_TERMCAP="-ltermcap"
3598 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3600 LIBS_TERMCAP="-ltermcap"
3604 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
3606 ## hpux: Make sure we get select from libc rather than from libcurses
3607 ## because libcurses on HPUX 10.10 has a broken version of select.
3608 ## We used to use -lc -lcurses, but this may be cleaner.
3609 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3610 # set that way, now it uses the default). Isn't this a contradiction?
3611 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3615 TERMCAP_OBJ=tparam.o
3616 if test $TERMINFO = yes; then
3617 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3618 TERMCAP_OBJ=terminfo.o
3620 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
3621 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
3623 AC_SUBST(LIBS_TERMCAP)
3624 AC_SUBST(TERMCAP_OBJ)
3627 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3628 # On Darwin, res_init appears not to be useful: see bug#562 and
3629 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3632 if test $opsys != darwin; then
3634 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3635 #include <arpa/nameser.h>
3636 #include <resolv.h>]],
3637 [[return res_init();]])],
3638 have_res_init=yes, have_res_init=no)
3639 if test "$have_res_init" = no; then
3641 LIBS="$LIBS -lresolv"
3642 AC_MSG_CHECKING(for res_init with -lresolv)
3643 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3644 #include <arpa/nameser.h>
3645 #include <resolv.h>]],
3646 [[return res_init();]])],
3647 have_res_init=yes, have_res_init=no)
3648 AC_MSG_RESULT($have_res_init)
3649 if test "$have_res_init" = yes ; then
3655 if test "$have_res_init" = yes; then
3656 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3660 # Do we need the Hesiod library to provide the support routines?
3661 dnl FIXME? Should we be skipping this on Darwin too?
3663 if test "$with_hesiod" != no ; then
3664 # Don't set $LIBS here -- see comments above. FIXME which comments?
3665 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3666 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3667 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3668 if test "$resolv" = yes ; then
3673 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3674 hesiod=yes, :, $RESOLVLIB)])
3676 if test x"$hesiod" = xyes; then
3682 # Do we need libresolv (due to res_init or Hesiod)?
3683 if test "$resolv" = yes && test $opsys != darwin; then
3690 # These tell us which Kerberos-related libraries to use.
3697 if test "${with_kerberos}" != no; then
3699 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3700 if test $have_com_err = yes; then
3701 COM_ERRLIB=-lcom_err
3702 LIBS="$COM_ERRLIB $LIBS"
3704 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3705 if test $have_crypto = yes; then
3707 LIBS="$CRYPTOLIB $LIBS"
3709 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3710 if test $have_k5crypto = yes; then
3711 CRYPTOLIB=-lk5crypto
3712 LIBS="$CRYPTOLIB $LIBS"
3714 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3715 if test $have_krb5=yes; then
3717 LIBS="$KRB5LIB $LIBS"
3719 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3720 if test "${with_kerberos5}" = no; then
3721 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3722 if test $have_des425 = yes; then
3724 LIBS="$DESLIB $LIBS"
3726 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3727 if test $have_des = yes; then
3729 LIBS="$DESLIB $LIBS"
3732 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3733 if test $have_krb4 = yes; then
3735 LIBS="$KRB4LIB $LIBS"
3737 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3738 if test $have_krb = yes; then
3740 LIBS="$KRB4LIB $LIBS"
3745 if test "${with_kerberos5}" != no; then
3746 AC_CHECK_HEADERS(krb5.h,
3747 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3748 [#include <krb5.h>])])
3750 AC_CHECK_HEADERS(krb.h,,
3751 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3752 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3754 AC_CHECK_HEADERS(com_err.h)
3758 AC_SUBST(COM_ERRLIB)
3764 AC_CHECK_HEADERS(valgrind/valgrind.h)
3766 AC_CHECK_FUNCS_ONCE(tzset)
3767 AC_MSG_CHECKING(whether localtime caches TZ)
3768 AC_CACHE_VAL(emacs_cv_localtime_cache,
3769 [if test x$ac_cv_func_tzset = xyes; then
3770 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3771 char TZ_GMT0[] = "TZ=GMT0";
3772 char TZ_PST8[] = "TZ=PST8";
3775 time_t now = time ((time_t *) 0);
3776 int hour_GMT0, hour_unset;
3777 if (putenv (TZ_GMT0) != 0)
3779 hour_GMT0 = localtime (&now)->tm_hour;
3781 hour_unset = localtime (&now)->tm_hour;
3782 if (putenv (TZ_PST8) != 0)
3784 if (localtime (&now)->tm_hour == hour_GMT0)
3787 if (localtime (&now)->tm_hour != hour_unset)
3790 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3791 [# If we have tzset, assume the worst when cross-compiling.
3792 emacs_cv_localtime_cache=yes])
3794 # If we lack tzset, report that localtime does not cache TZ,
3795 # since we can't invalidate the cache if we don't have tzset.
3796 emacs_cv_localtime_cache=no
3798 AC_MSG_RESULT($emacs_cv_localtime_cache)
3799 if test $emacs_cv_localtime_cache = yes; then
3800 AC_DEFINE(LOCALTIME_CACHE, 1,
3801 [Define to 1 if localtime caches TZ.])
3805 AC_CHECK_FUNC(socket, , ok_so_far=no)
3806 if test $ok_so_far = yes; then
3807 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3809 if test $ok_so_far = yes; then
3810 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3812 if test $ok_so_far = yes; then
3813 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3814 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3815 [Define to 1 if you have inet sockets.])
3818 dnl Check for a Solaris 2.4 vfork bug that Autoconf misses (through 2.69).
3819 dnl This can be removed once we assume Autoconf 2.70.
3821 *-solaris2.4 | *-solaris2.4.*)
3822 dnl Disable the Autoconf-generated vfork test.
3823 : ${ac_cv_func_vfork_works=no};;
3828 AC_CHECK_FUNCS(snprintf)
3830 dnl Check for glib. This differs from other library checks in that
3831 dnl Emacs need not link to glib unless some other library is already
3832 dnl linking to glib. Although glib provides no facilities that Emacs
3833 dnl needs for its own purposes, when glib is present Emacs needs to
3834 dnl use primitives like g_main_context_query to avoid clashing with
3835 dnl glib at a low level.
3837 dnl Check this late, since it depends on $GTK_CFLAGS etc.
3841 CFLAGS="$CFLAGS $GTK_CFLAGS $RSVG_CFLAGS $DBUS_CFLAGS $SETTINGS_CFLAGS"
3842 LIBS="$LIBS $GTK_LIBS $RSVG_LIBS $DBUS_LIBS $SETTINGS_LIBS"
3843 CFLAGS="$CFLAGS $GFILENOTIFY_CFLAGS"
3844 LIBS="$LIBS $GFILENOTIFY_LIBS"
3845 AC_MSG_CHECKING([whether GLib is linked in])
3846 AC_LINK_IFELSE([AC_LANG_PROGRAM(
3849 [[g_print ("Hello world");]])],
3852 AC_MSG_RESULT([$links_glib])
3853 if test "${links_glib}" = "yes"; then
3854 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
3855 if test "$HAVE_NS" = no;then
3863 dnl Adapted from Haible's version.
3864 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3865 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3866 [[char* cs = nl_langinfo(CODESET);]])],
3867 emacs_cv_langinfo_codeset=yes,
3868 emacs_cv_langinfo_codeset=no)
3870 if test $emacs_cv_langinfo_codeset = yes; then
3871 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3872 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3877 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3878 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3879 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3880 if test "$emacs_cv_c_restrict_arr" = yes; then
3881 AC_DEFINE(__restrict_arr, __restrict,
3882 [Define to compiler's equivalent of C99 restrict keyword in array
3883 declarations. Define as empty for no equivalent.])
3886 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3887 dnl how the tty code is related to POSIX and/or other versions of termios.
3888 dnl The following looks like a useful start.
3890 dnl AC_SYS_POSIX_TERMIOS
3891 dnl if test $ac_cv_sys_posix_termios = yes; then
3892 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3893 dnl and macros for terminal control.])
3894 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3897 dnl Turned on June 1996 supposing nobody will mind it.
3898 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
3899 if test "${opsys}" != "mingw32"; then
3900 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3901 in the full name stands for the login id.])
3904 dnl Everybody supports this, except MS.
3905 dnl Seems like the kind of thing we should be testing for, though.
3906 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3907 if test "${opsys}" != "mingw32"; then
3908 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3911 dnl Everybody supports this, except MS-DOS.
3912 dnl Seems like the kind of thing we should be testing for, though.
3913 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3914 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3915 4.2-compatible sockets.])
3917 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3919 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
3920 a null file, or a data sink.])
3921 if test "${opsys}" = "mingw32"; then
3922 AC_DEFINE(NULL_DEVICE, ["NUL:"])
3924 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
3927 if test "${opsys}" = "mingw32"; then
3932 AC_DEFINE_UNQUOTED(SEPCHAR, ['$SEPCHAR'], [Character that separates PATH elements.])
3933 dnl This is for MinGW, and is used in test/automated/Makefile.in.
3934 dnl The MSYS Bash has heuristics for replacing ':' with ';' when it
3935 dnl decides that a command-line argument to be passed to a MinGW program
3936 dnl is a PATH-style list of directories. But that heuristics plays it
3937 dnl safe, and only does the replacement when it is _absolutely_ sure it
3938 dnl sees a colon-separated list of file names; e.g. ":." is left alone,
3939 dnl which breaks in-tree builds. So we do this manually instead.
3940 dnl Note that we cannot rely on PATH_SEPARATOR, as that one will always
3941 dnl be computed as ':' in MSYS Bash.
3944 dnl Everybody supports this, except MS-DOS.
3945 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3947 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3950 AC_DEFINE(DIRECTORY_SEP, ['/'],
3951 [Character that separates directories in a file name.])
3953 if test "${opsys}" = "mingw32"; then
3954 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
3955 [Returns true if character is a device separator.])
3957 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
3958 [Returns true if character is a directory separator.])
3960 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
3961 [Returns true if character is any form of separator.])
3963 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
3964 [Returns true if character is a device separator.])
3966 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
3967 [Returns true if character is a directory separator.])
3969 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
3970 [Returns true if character is any form of separator.])
3973 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
3977 dnl Unfortunately without libXmu we cannot support EditRes.
3978 if test "x$ac_cv_search_XmuConvertStandardSelection" = xno; then
3979 AC_DEFINE(NO_EDITRES, 1)
3984 dnl Assar Westerlund <assar@sics.se> says this is necessary for
3985 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
3986 AC_DEFINE(NO_EDITRES, 1)
3992 irix6-5 | sol2* | unixware )
3993 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
3994 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
3995 dnl need the constant to dimension an array. So wire in the appropriate
3997 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
4001 emacs_broken_SIGIO=no
4004 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
4005 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
4006 hpux* | irix6-5 | openbsd | sol2* | unixware )
4007 emacs_broken_SIGIO=yes
4011 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
4012 dnl the way this system works, libc functions that return malloced
4013 dnl memory use the libc malloc implementation. Calling xfree or
4014 dnl xrealloc on the results of such functions results in a crash.
4016 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
4017 dnl but that does not currently work on this system.
4019 dnl It is possible to completely override the malloc implementation on
4020 dnl AIX, but that involves putting the malloc functions in a shared
4021 dnl library and setting the MALLOCTYPE environment variable to point to
4022 dnl that shared library.
4024 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
4025 dnl to avoid a crash just use the Emacs implementation for that function.
4027 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
4028 dnl of this file, so that we do not check for get_current_dir_name
4029 dnl on AIX. But that might be fragile if something else ends
4030 dnl up testing for get_current_dir_name as a dependency.
4031 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
4032 get_current_dir_name should not be used.])
4036 dnl Circumvent a bug in FreeBSD. In the following sequence of
4037 dnl writes/reads on a PTY, read(2) returns bogus data:
4039 dnl write(2) 1022 bytes
4040 dnl write(2) 954 bytes, get EAGAIN
4041 dnl read(2) 1024 bytes in process_read_output
4042 dnl read(2) 11 bytes in process_read_output
4044 dnl That is, read(2) returns more bytes than have ever been written
4045 dnl successfully. The 1033 bytes read are the 1022 bytes written
4046 dnl successfully after processing (for example with CRs added if the
4047 dnl terminal is set up that way which it is here). The same bytes will
4048 dnl be seen again in a later read(2), without the CRs.
4049 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
4050 work around an issue when reading from a PTY.])
4056 dnl FIXME Can't we test if this exists (eg /proc/$$)?
4057 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
4062 darwin | dragonfly | freebsd | netbsd | openbsd )
4063 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
4064 close a pty to make it a controlling terminal (it is already a
4065 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
4069 dnl FIXME Surely we can test for this rather than hard-code it.
4071 netbsd | openbsd) sound_device="/dev/audio" ;;
4072 *) sound_device="/dev/dsp" ;;
4076 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
4077 [Name of the default sound device.])
4080 dnl Emacs can read input using SIGIO and buffering characters itself,
4081 dnl or using CBREAK mode and making C-g cause SIGINT.
4082 dnl The choice is controlled by the variable interrupt_input.
4084 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
4086 dnl Emacs uses the presence of the USABLE_SIGIO macro
4087 dnl to indicate whether or not signal-driven I/O is possible. It uses
4088 dnl INTERRUPT_INPUT to decide whether to use it by default.
4090 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
4091 dnl CBREAK mode has two disadvantages
4092 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
4093 dnl I hear that in system V this problem does not exist.
4094 dnl 2) Control-G causes output to be discarded.
4095 dnl I do not know whether this can be fixed in system V.
4097 dnl Another method of doing input is planned but not implemented.
4098 dnl It would have Emacs fork off a separate process
4099 dnl to read the input and send it to the true Emacs process
4102 darwin | gnu-linux | gnu-kfreebsd )
4103 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
4108 dnl If the system's imake configuration file defines `NeedWidePrototypes'
4109 dnl as `NO', we must define NARROWPROTO manually. Such a define is
4110 dnl generated in the Makefile generated by `xmkmf'. If we don't define
4111 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
4112 dnl taking float or double parameters.
4114 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
4115 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
4116 file defines `NeedWidePrototypes' as `NO'.])
4121 dnl Used in process.c, this must be a loop, even if it only runs once.
4122 dnl (Except on SGI; see below. Take that, clarity and consistency!)
4123 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
4124 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
4125 dnl trying suffixes 0-16.
4126 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
4127 first PTY, if PTYs are supported.])
4128 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
4129 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
4130 end of a PTY, if non-standard.])
4131 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
4132 end of a PTY, if non-standard.])
4136 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4137 dnl You allocate a pty by opening /dev/ptc to get the master side.
4138 dnl To get the name of the slave side, you just ttyname() the master side.
4139 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4140 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4144 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4145 dnl multi-line AC_DEFINEs are hard. :(
4146 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)])
4147 AC_DEFINE(PTY_NAME_SPRINTF, [])
4148 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4151 dnl FIXME? Maybe use same as freebsd - see bug#12040.
4153 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4154 dnl Not used, because PTY_ITERATION is defined.
4155 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4156 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
4157 dnl But we don't have to block SIGCHLD because it is blocked in the
4158 dnl implementation of grantpt.
4159 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (false)])
4160 AC_DEFINE(PTY_NAME_SPRINTF, [])
4161 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4165 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4168 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd )
4170 if test "x$ac_cv_func_grantpt" = xyes; then
4171 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4172 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4173 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4174 dnl to prevent sigchld_handler from intercepting the child's death.
4175 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); }])
4176 dnl if HAVE_POSIX_OPENPT
4177 if test "x$ac_cv_func_posix_openpt" = xyes; then
4178 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (false)])
4179 AC_DEFINE(PTY_NAME_SPRINTF, [])
4181 elif test "x$ac_cv_func_getpt" = xyes; then
4182 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4183 AC_DEFINE(PTY_NAME_SPRINTF, [])
4185 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4188 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4193 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4194 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4195 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4199 dnl It looks like this cannot be right, because it is not a loop.
4200 dnl However, process.c actually does this:
4206 dnl which presumably makes it OK, since irix == sgi (?).
4207 dnl FIXME it seems like this special treatment is unnecessary?
4208 dnl Why can't irix use a single-trip loop like eg cygwin?
4209 AC_DEFINE(PTY_ITERATION, [])
4210 dnl Not used, because PTY_ITERATION is defined.
4211 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
4212 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); }])
4213 dnl No need to get the pty name at all.
4214 AC_DEFINE(PTY_NAME_SPRINTF, [])
4215 dnl No need to use sprintf to get the tty name--we get that from _getpty.
4216 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4220 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
4221 dnl from intercepting that death. If any child but grantpt's should die
4222 dnl within, it should be caught after sigrelse(2).
4223 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); }])
4227 dnl Comments are as per sol2*.
4228 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); }])
4235 dnl This change means that we don't loop through allocate_pty too
4236 dnl many times in the (rare) event of a failure.
4237 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4238 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4239 dnl Push various streams modules onto a PTY channel. Used in process.c.
4240 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.])
4245 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4246 "typing" a signal character on the pty.])
4249 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4250 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
4251 aix4-2 | cygwin | gnu | irix6-5 | dragonfly | freebsd | netbsd | openbsd | darwin )
4252 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4255 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4256 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4257 gnu-linux | gnu-kfreebsd )
4259 AC_MSG_CHECKING([for signals via characters])
4260 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4261 #include <linux/version.h>
4262 #if LINUX_VERSION_CODE < 0x20400
4263 # error "Linux version too old"
4265 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4267 AC_MSG_RESULT([$emacs_signals_via_chars])
4268 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4273 AH_TEMPLATE(TAB3, [Undocumented.])
4276 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4278 gnu | dragonfly | freebsd | netbsd | openbsd )
4279 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4280 AC_DEFINE(TAB3, OXTABS)
4283 gnu-linux | gnu-kfreebsd )
4284 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4288 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4289 [do { extern void *__libc_ia64_register_backing_store_base; __builtin_ia64_flushrs (); mark_memory (__libc_ia64_register_backing_store_base, __builtin_ia64_bsp ());} while (false)],
4290 [Mark a secondary stack, like the register stack on the ia64.]), [])
4294 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4295 run_time_remap; for HPUX.])
4300 dnl This won't be used automatically yet. We also need to know, at least,
4301 dnl that the stack is continuous.
4302 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4303 registers relevant for conservative garbage collection in the jmp_buf.])
4307 dnl Not all the architectures are tested, but there are Debian packages
4308 dnl for SCM and/or Guile on them, so the technique must work. See also
4309 dnl comments in alloc.c concerning setjmp and gcc.
4310 dnl Fixme: it's probably safe to just use the GCC conditional below.
4311 gnu-linux | gnu-kfreebsd )
4312 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4313 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4314 || defined __alpha__ || defined __mips__ || defined __s390__ \
4315 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4316 || defined __ia64__ || defined __sh__
4319 # error "setjmp not known to work on this arch"
4321 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4326 if test x$GCC = xyes; then
4327 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4328 AC_DEFINE(GC_SETJMP_WORKS, 1)
4331 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
4332 dragonfly | freebsd | netbsd | openbsd | irix6-5 | sol2* )
4333 AC_DEFINE(GC_SETJMP_WORKS, 1)
4338 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4339 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4342 [[#include <setjmp.h>
4344 # define _longjmp longjmp
4349 _longjmp (j, 1);]])],
4350 [emacs_cv_func__setjmp=yes],
4351 [emacs_cv_func__setjmp=no])])
4352 if test $emacs_cv_func__setjmp = yes; then
4353 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4355 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4358 [[#include <setjmp.h>
4361 if (! sigsetjmp (j, 1))
4362 siglongjmp (j, 1);]])],
4363 [emacs_cv_func_sigsetjmp=yes],
4364 [emacs_cv_func_sigsetjmp=no])])
4365 if test $emacs_cv_func_sigsetjmp = yes; then
4366 AC_DEFINE([HAVE_SIGSETJMP], 1,
4367 [Define to 1 if sigsetjmp and siglongjmp work.
4368 The value of this symbol is irrelevant if HAVE__SETJMP is defined.])
4374 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4375 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4376 dnl and this is all we need.
4377 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4384 dnl Used in xfaces.c.
4385 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4386 some systems, where it requires time.h.])
4391 dnl Define symbols to identify the version of Unix this is.
4392 dnl Define all the symbols that apply correctly.
4393 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4394 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4395 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4396 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4401 dnl This symbol should be defined on AIX Version 3 ???????
4402 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4404 # error "_AIX not defined"
4406 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4410 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4414 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
4415 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4416 dnl distinguish OS X from pure Darwin.
4417 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4420 gnu-linux | gnu-kfreebsd )
4422 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4427 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4432 AC_DEFINE(USG5_4, [])
4433 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4437 AC_DEFINE(DOS_NT, [])
4438 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4439 if test "x$ac_enable_checking" != "x" ; then
4440 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4446 AC_DEFINE(USG5_4, [])
4447 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4452 AC_DEFINE(USG5_4, [])
4456 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4459 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4460 emacs_cv_usable_FIONREAD=no
4464 emacs_cv_usable_FIONREAD=yes
4469 [AC_LANG_PROGRAM([[#include <sys/types.h>
4470 #include <sys/ioctl.h>
4472 # include <sys/filio.h>
4475 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4476 [emacs_cv_usable_FIONREAD=yes],
4477 [emacs_cv_usable_FIONREAD=no])
4480 if test $emacs_cv_usable_FIONREAD = yes; then
4481 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4483 if test $emacs_broken_SIGIO = no; then
4484 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4486 [AC_LANG_PROGRAM([[#include <fcntl.h>
4489 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4490 [emacs_cv_usable_SIGIO=yes],
4491 [emacs_cv_usable_SIGIO=no])],
4492 [emacs_cv_usable_SIGIO=yes],
4493 [emacs_cv_usable_SIGIO=no])
4494 if test $emacs_cv_usable_SIGIO = yes; then
4495 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4502 dnl Emacs supplies its own malloc, but glib calls posix_memalign,
4503 dnl and on Cygwin prior to version 1.7.24 that becomes the
4504 dnl Cygwin-supplied posix_memalign. As malloc is not the Cygwin
4505 dnl malloc, the Cygwin posix_memalign always returns ENOSYS. A
4506 dnl workaround is to set G_SLICE=always-malloc. This is no longer
4507 dnl needed starting with cygwin-1.7.24, and it is no longer
4508 dnl effective starting with glib-2.36. */
4510 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
4511 G_SLICE environment variable to "always-malloc" at startup.])
4515 dnl It works to open the pty's tty in the parent (Emacs), then
4516 dnl close and reopen it in the child.
4517 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4518 works to open a pty's tty in the parent process, then close and
4519 reopen it in the child.])
4523 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4524 use VSUSP instead of VSWTCH.])
4528 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4533 # Set up the CFLAGS for real compilation, so we can substitute it.
4534 CFLAGS="$REAL_CFLAGS"
4535 CPPFLAGS="$REAL_CPPFLAGS"
4538 ## Hack to detect a buggy GCC version.
4539 if test "x$GCC" = xyes \
4540 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4541 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4542 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4543 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4546 version=$PACKAGE_VERSION
4548 copyright="Copyright (C) 2014 Free Software Foundation, Inc."
4549 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4550 [Short copyright string for this version of Emacs.])
4553 ### Specify what sort of things we'll be editing into Makefile and config.h.
4554 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4556 AC_SUBST(configuration)
4561 AC_SUBST(exec_prefix)
4564 AC_SUBST(sharedstatedir)
4565 AC_SUBST(libexecdir)
4569 AC_SUBST(standardlisppath)
4570 AC_SUBST(locallisppath)
4572 AC_SUBST(x_default_search_path)
4574 AC_SUBST(archlibdir)
4579 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4580 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4581 ## end of LIBX_BASE, but nothing ever set it.
4582 AC_SUBST(LD_SWITCH_X_SITE)
4583 AC_SUBST(C_SWITCH_X_SITE)
4584 AC_SUBST(GNUSTEP_CFLAGS)
4586 ## Used in lwlib/Makefile.in.
4587 AC_SUBST(X_TOOLKIT_TYPE)
4589 AC_SUBST(ns_appbindir)
4590 AC_SUBST(ns_appresdir)
4592 AC_SUBST(GNU_OBJC_CFLAGS)
4593 AC_SUBST(OTHER_FILES)
4595 if test -n "${term_header}"; then
4596 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4597 [Define to the header for the built-in window system.])
4600 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4601 [Define to the canonical Emacs configuration name.])
4602 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4603 [Define to the options passed to configure.])
4604 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4605 define this to include extra configuration information.])
4609 AC_DEFINE(config_opsysfile, <ms-w32.h>, [])
4616 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4617 AC_DEFINE(HAVE_X_WINDOWS, 1,
4618 [Define to 1 if you want to use the X window system.])
4620 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4622 if test "$HAVE_XFT" = "yes"; then
4623 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4624 elif test "$HAVE_FREETYPE" = "yes"; then
4625 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4635 if test "${USE_X_TOOLKIT}" != "none" ; then
4637 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4638 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4639 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4640 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4641 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4645 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4646 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4650 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4651 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4652 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4656 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4657 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4660 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4663 AC_SUBST(WIDGET_OBJ)
4666 case "$USE_X_TOOLKIT" in
4667 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4668 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4669 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4671 AC_SUBST(TOOLKIT_LIBW)
4673 if test "${opsys}" != "mingw32"; then
4674 if test "$USE_X_TOOLKIT" = "none"; then
4675 LIBXT_OTHER="\$(LIBXSM)"
4677 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4680 AC_SUBST(LIBXT_OTHER)
4682 if test "${HAVE_X11}" = "yes" ; then
4683 AC_DEFINE(HAVE_X11, 1,
4684 [Define to 1 if you want to use version 11 of X windows.])
4685 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4689 AC_SUBST(LIBX_OTHER)
4691 if test "$HAVE_GTK" = yes || test "$HAVE_X11" != yes; then
4693 elif test "$USE_X_TOOLKIT" = none; then
4694 LIBXMENU='$(oldXMenudir)/libXMenu11.a'
4696 LIBXMENU='$(lwlibdir)/liblw.a'
4700 if test "${GNU_MALLOC}" = "yes" ; then
4701 AC_DEFINE(GNU_MALLOC, 1,
4702 [Define to 1 if you want to use the GNU memory allocator.])
4706 if test "${REL_ALLOC}" = "yes" ; then
4707 AC_DEFINE(REL_ALLOC, 1,
4708 [Define REL_ALLOC if you want to use the relocating allocator for
4711 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4713 AC_SUBST(RALLOC_OBJ)
4715 if test "$opsys" = "cygwin"; then
4716 CYGWIN_OBJ="sheap.o cygw32.o"
4717 ## Cygwin differs because of its unexec().
4719 POST_ALLOC_OBJ=lastfile.o
4720 elif test "$opsys" = "mingw32"; then
4723 POST_ALLOC_OBJ=lastfile.o
4726 PRE_ALLOC_OBJ=lastfile.o
4729 AC_SUBST(CYGWIN_OBJ)
4730 AC_SUBST(PRE_ALLOC_OBJ)
4731 AC_SUBST(POST_ALLOC_OBJ)
4733 dnl Call this 'FORTIFY_SOUR' so that it sorts before the 'FORTIFY_SOURCE'
4734 dnl verbatim defined above. The tricky name is apropos, as this hack
4735 dnl makes Fortify go sour!
4736 AH_VERBATIM([FORTIFY_SOUR],
4737 [/* Without the following workaround, Emacs runs slowly on OS X 10.8.
4738 The workaround disables some useful run-time checking, so it
4739 should be conditional to the platforms with the performance bug.
4740 Perhaps Apple will fix this some day; also see m4/extern-inline.m4. */
4741 #if defined __APPLE__ && defined __GNUC__
4742 # ifndef _DONT_USE_CTYPE_INLINE_
4743 # define _DONT_USE_CTYPE_INLINE_
4745 # ifndef _FORTIFY_SOURCE
4746 # define _FORTIFY_SOURCE 0
4751 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4752 # it temporarily reverts them to their pre-pkg-config values,
4753 # because gnulib needs to work with both src (which uses the
4754 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4755 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4756 # and it therefore needs to run in an environment where LIBS does not
4757 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4758 # for some package unrelated to lib-src.
4761 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4762 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4763 gl_ASSERT_NO_GNULIB_POSIXCHECK
4764 gl_ASSERT_NO_GNULIB_TESTS
4769 if test "${opsys}" = "mingw32"; then
4770 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I \${abs_top_srcdir}/nt/inc"
4771 # Remove unneeded switches from the value of CC that goes to Makefiles
4772 CC=`echo $CC | sed -e "s,$GCC_TEST_OPTIONS,,"`
4776 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4779 ## The -headerpad option tells ld (see man page) to leave room at the
4780 ## end of the header for adding load commands. Needed for dumping.
4781 ## 0x690 is the total size of 30 segment load commands (at 56
4782 ## each); under Cocoa 31 commands are required.
4783 if test "$HAVE_NS" = "yes"; then
4784 libs_nsgui="-framework AppKit"
4785 if test "$NS_IMPL_COCOA" = "yes"; then
4786 libs_nsgui="$libs_nsgui -framework IOKit"
4793 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4795 ## This is here because src/Makefile.in did some extra fiddling around
4796 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
4797 ## LD_SWITCH_SYSTEM_TEMACS instead,
4798 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4799 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4802 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4803 ## find X at run-time.
4804 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4805 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4806 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4807 ## had different values in configure (in ac_link) and src/Makefile.in.
4808 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4809 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4812 ## MinGW64 does not prepend an underscore to symbols, so we must
4813 ## pass a different -entry switch to linker. FIXME: It is better
4814 ## to make the entry points the same by changing unexw32.c.
4815 case "$canonical" in
4816 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4817 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4821 openbsd) LD_SWITCH_SYSTEM_TEMACS='-nopie' ;;
4823 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4826 if test x$ac_enable_profiling != x ; then
4828 *freebsd | gnu-linux) ;;
4829 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
4833 LD_SWITCH_SYSTEM_TEMACS="$LDFLAGS_NOCOMBRELOC $LD_SWITCH_SYSTEM_TEMACS"
4835 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4837 ## MinGW-specific post-link processing of temacs.
4838 TEMACS_POST_LINK=":"
4841 if test "${opsys}" = "mingw32"; then
4842 TEMACS_POST_LINK="\$(MINGW_TEMACS_POST_LINK)"
4843 ADDSECTION="../nt/addsection\$(EXEEXT)"
4844 ## Preload heap size of temacs.exe in MB.
4845 case "$canonical" in
4846 x86_64-*-*) EMACS_HEAPSIZE=42 ;;
4847 *) EMACS_HEAPSIZE=27 ;;
4851 AC_SUBST(ADDSECTION)
4852 AC_SUBST(TEMACS_POST_LINK)
4853 AC_SUBST(EMACS_HEAPSIZE)
4855 ## Common for all window systems
4856 if test "$window_system" != "none"; then
4857 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4858 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4861 AC_SUBST(WINDOW_SYSTEM_OBJ)
4863 AH_TOP([/* GNU Emacs site configuration template file.
4865 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2014
4866 Free Software Foundation, Inc.
4868 This file is part of GNU Emacs.
4870 GNU Emacs is free software: you can redistribute it and/or modify
4871 it under the terms of the GNU General Public License as published by
4872 the Free Software Foundation, either version 3 of the License, or
4873 (at your option) any later version.
4875 GNU Emacs is distributed in the hope that it will be useful,
4876 but WITHOUT ANY WARRANTY; without even the implied warranty of
4877 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4878 GNU General Public License for more details.
4880 You should have received a copy of the GNU General Public License
4881 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4884 /* No code in Emacs #includes config.h twice, but some bits of code
4885 intended to work with other packages as well (like gmalloc.c)
4886 think they can include it as many times as they like. */
4887 #ifndef EMACS_CONFIG_H
4888 #define EMACS_CONFIG_H
4891 AH_BOTTOM([#include <conf_post.h>
4893 #endif /* EMACS_CONFIG_H */
4902 #### Report on what we decided to do.
4903 #### Report GTK as a toolkit, even if it doesn't use Xt.
4904 #### It makes printing result more understandable as using GTK sets
4905 #### toolkit_scroll_bars to yes by default.
4906 if test "${HAVE_GTK}" = "yes"; then
4907 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
4910 if test $USE_ACL -ne 0; then
4911 ACL_SUMMARY="yes $LIB_ACL"
4917 Configured for \`${canonical}'.
4919 Where should the build process find the source code? ${srcdir}
4920 What compiler should emacs be built with? ${CC} ${CFLAGS}
4921 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4922 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4923 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4924 What window system should Emacs use? ${window_system}
4925 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4927 if test -n "${x_includes}"; then
4928 echo " Where do we find X Windows header files? ${x_includes}"
4930 echo " Where do we find X Windows header files? Standard dirs"
4932 if test -n "${x_libraries}"; then
4933 echo " Where do we find X Windows libraries? ${x_libraries}"
4935 echo " Where do we find X Windows libraries? Standard dirs"
4939 emacs_config_features=
4940 for opt in XAW3D XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS \
4941 GCONF GSETTINGS NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT \
4945 NOTIFY|ACL) eval val=\${${opt}_SUMMARY} ;;
4946 *) eval val=\${HAVE_$opt} ;;
4948 test x"$val" = xno && continue
4949 AS_VAR_APPEND([emacs_config_features], ["$optsep$opt"])
4952 AC_DEFINE_UNQUOTED(EMACS_CONFIG_FEATURES, "${emacs_config_features}",
4953 [Summary of some of the main features enabled by configure.])
4955 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4956 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4957 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4958 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4959 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4960 echo " Does Emacs use a png library? ${HAVE_PNG} $LIBPNG"
4961 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4962 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4964 echo " Does Emacs support sound? ${HAVE_SOUND}"
4966 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4967 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4968 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4969 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4970 echo " Does Emacs use a file notification library? ${NOTIFY_SUMMARY}"
4971 echo " Does Emacs use access control lists? ${ACL_SUMMARY}"
4972 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4973 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4974 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4976 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4977 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4978 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
4979 echo " Does Emacs use -lxft? ${HAVE_XFT}"
4980 echo " Does Emacs directly use zlib? ${HAVE_ZLIB}"
4982 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
4985 if test -n "${EMACSDATA}"; then
4986 echo " Environment variable EMACSDATA set to: $EMACSDATA"
4988 if test -n "${EMACSDOC}"; then
4989 echo " Environment variable EMACSDOC set to: $EMACSDOC"
4994 if test "$HAVE_NS" = "yes"; then
4996 echo "You must run \"${MAKE-make} install\" in order to test the built application.
4997 The installed application will go to nextstep/Emacs.app and can be
4998 run or moved from there."
4999 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
5000 echo "The application will be fully self-contained."
5002 echo "The lisp resources for the application will be installed under ${prefix}.
5003 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
5004 to run if these resources are not installed."
5009 if test "${opsys}" = "cygwin"; then
5011 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
5017 # Remove any trailing slashes in these variables.
5018 [test "${prefix}" != NONE &&
5019 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
5020 test "${exec_prefix}" != NONE &&
5021 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
5023 if test "$HAVE_NS" = "yes"; then
5024 if test "$NS_IMPL_GNUSTEP" = yes; then
5025 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
5026 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
5027 ns_check_file=Resources/Info-gnustep.plist
5029 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
5030 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
5031 ns_check_file=Contents/Info.plist
5033 AC_SUBST(ns_check_file)
5036 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
5037 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
5038 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
5039 dnl (else you get "no `Makefile.am' found for any configure output").
5040 dnl This will work, but you get a config.status that is not quite right
5041 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
5042 dnl That doesn't have any obvious consequences for Emacs, but on the whole
5043 dnl it seems better to just live with the duplication.
5044 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile nt/Makefile"
5046 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
5047 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
5048 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
5049 leim/Makefile nextstep/Makefile nt/Makefile])
5051 dnl test/ is not present in release tarfiles.
5052 opt_makefile=test/automated/Makefile
5054 if test -f "$srcdir/$opt_makefile.in"; then
5055 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
5056 dnl Again, it's best not to use a variable. Though you can add
5057 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
5058 AC_CONFIG_FILES([test/automated/Makefile])
5062 dnl The admin/ directory used to be excluded from tarfiles.
5063 if test -d $srcdir/admin; then
5064 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES admin/unidata/Makefile admin/grammars/Makefile"
5065 AC_CONFIG_FILES([admin/unidata/Makefile])
5066 AC_CONFIG_FILES([admin/grammars/Makefile])
5070 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
5072 AC_SUBST(SUBDIR_MAKEFILES_IN)
5074 dnl You might wonder (I did) why epaths.h is generated by running make,
5075 dnl rather than just letting configure generate it from epaths.in.
5076 dnl One reason is that the various paths are not fully expanded (see above);
5077 dnl eg gamedir=${prefix}/var/games/emacs.
5078 dnl Secondly, the GNU Coding standards require that one should be able
5079 dnl to run `make prefix=/some/where/else' and override the values set
5080 dnl by configure. This also explains the `move-if-change' test and
5081 dnl the use of force in the `epaths-force' rule in Makefile.in.
5082 AC_CONFIG_COMMANDS([src/epaths.h], [
5083 if test "${opsys}" = "mingw32"; then
5084 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
5086 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
5088 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
5090 dnl NB we have to cheat and use the ac_... version because abs_top_srcdir
5091 dnl is not yet set, sigh. Or we could use ../$srcdir/src/.gdbinit,
5093 AC_CONFIG_COMMANDS([src/.gdbinit], [
5094 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
5095 echo "source $ac_abs_top_srcdir/src/.gdbinit" > src/.gdbinit