1 dnl Autoconf script for GNU Emacs
2 dnl To rebuild the `configure' script from this, execute the command
4 dnl in the directory containing this script.
5 dnl If you changed any AC_DEFINES, also run autoheader.
7 dnl Copyright (C) 1994-1996, 1999-2014 Free Software Foundation, Inc.
9 dnl This file is part of GNU Emacs.
11 dnl GNU Emacs is free software: you can redistribute it and/or modify
12 dnl it under the terms of the GNU General Public License as published by
13 dnl the Free Software Foundation, either version 3 of the License, or
14 dnl (at your option) any later version.
16 dnl GNU Emacs is distributed in the hope that it will be useful,
17 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
18 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 dnl GNU General Public License for more details.
21 dnl You should have received a copy of the GNU General Public License
22 dnl along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
25 dnl Note this is parsed by (at least) make-dist and lisp/cedet/ede/emacs.el.
26 AC_INIT(GNU Emacs, 24.4.50, bug-gnu-emacs@gnu.org)
28 dnl We get MINGW64 with MSYS2
29 if test "x$MSYSTEM" = "xMINGW32" -o "x$MSYSTEM" = "xMINGW64"
31 . $srcdir/nt/mingw-cfg.site
35 # srcdir is an absolute path. In this case, force the format
36 # "/c/foo/bar", to simplify later conversions to native Windows
37 # format ("c:/foo/bar")
38 srcdir=`cd "${srcdir}" && pwd -W`
39 srcdir="/${srcdir:0:1}${srcdir:2}"
44 dnl Set emacs_config_options to the options of 'configure', quoted for the shell,
45 dnl and then quoted again for a C string. Separate options with spaces.
46 dnl Add some environment variables, if they were passed via the environment
47 dnl rather than on the command-line.
50 dnl This is the documented way to record the args passed to configure,
51 dnl rather than $ac_configure_args.
52 for opt in ${1+"$@"} CFLAGS CPPFLAGS LDFLAGS; do
54 -n | --no-create | --no-recursion)
56 CFLAGS | CPPFLAGS | LDFLAGS)
57 eval 'test "${'$opt'+set}" = set' || continue
59 *" $opt="*) continue ;;
61 eval opt=$opt=\$$opt ;;
64 emacs_shell_specials=$IFS\''"#$&()*;<>?@<:@\\`{|~'
66 *[["$emacs_shell_specials"]]*)
69 emacs_quote_apostrophes="s/'/'\\\\''/g"
70 opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_apostrophes"` ;;
75 emacs_quote_for_c='s/[["\\]]/\\&/g; $!s/$/\\n\\/'
76 opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_for_c"` ;;
79 AS_VAR_APPEND([emacs_config_options], ["$optsep$opt"])
83 AC_CONFIG_HEADERS(src/config.h:src/config.in)
84 AC_CONFIG_SRCDIR(src/lisp.h)
85 AC_CONFIG_AUX_DIR(build-aux)
86 dnl automake 1.13 and later understand this, making -I m4 unnecessary.
87 dnl With older versions this is a no-op.
88 AC_CONFIG_MACRO_DIR(m4)
91 AC_CHECK_PROGS(XCRUN, [xcrun])
92 if test -n "$XCRUN"; then
93 if test -z "$MAKE"; then
94 dnl Call the variable MAKE_PROG, not MAKE, to avoid confusion with
95 dnl SET_MAKE and with the usual MAKE variable that 'make' itself uses.
96 AC_CHECK_PROG([MAKE_PROG], [make], [yes])
97 if test -z "$MAKE_PROG"; then
100 xcsdkdir=`$XCRUN --show-sdk-path 2>/dev/null`
105 dnl Fairly arbitrary, older versions might work too.
106 AM_INIT_AUTOMAKE(1.11)
108 dnl Support for --program-prefix, --program-suffix and
109 dnl --program-transform-name options
112 dnl It is important that variables on the RHS not be expanded here,
113 dnl hence the single quotes. This is per the GNU coding standards, see
114 dnl (autoconf) Installation Directory Variables
115 dnl See also epaths.h below.
116 lispdir='${datadir}/emacs/${version}/lisp'
117 standardlisppath='${lispdir}'
118 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
119 '${datadir}/emacs/site-lisp'
120 lisppath='${locallisppath}:${standardlisppath}'
121 etcdir='${datadir}/emacs/${version}/etc'
122 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
123 etcdocdir='${datadir}/emacs/${version}/etc'
124 gamedir='${localstatedir}/games/emacs'
126 dnl Special option to disable the most of other options.
128 [AS_HELP_STRING([--without-all],
129 [omit almost all features and build
130 small executable with minimal dependencies])],
131 [with_features=$withval],
134 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
135 dnl Create a new --with option that defaults to being disabled.
136 dnl NAME is the base name of the option. The shell variable with_NAME
137 dnl will be set to either the user's value (if the option is
138 dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
139 dnl option is not specified). Note that the shell variable name is
140 dnl constructed as autoconf does, by replacing non-alphanumeric
141 dnl characters with "_".
142 dnl HELP-STRING is the help text for the option.
143 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
144 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
145 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
148 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
149 dnl Create a new --with option that defaults to $with_features.
150 dnl NAME is the base name of the option. The shell variable with_NAME
151 dnl will be set either to 'no' (for a plain --without-NAME) or to
152 dnl 'yes' (if the option is not specified). Note that the shell
153 dnl variable name is constructed as autoconf does, by replacing
154 dnl non-alphanumeric characters with "_".
155 dnl HELP-STRING is the help text for the option.
156 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
157 AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
158 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=$with_features])dnl
161 OPTION_DEFAULT_ON([pop],[don't support POP mail retrieval with movemail])
162 if test "$with_pop" = yes; then
163 AC_DEFINE(MAIL_USE_POP)
165 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
167 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
168 if test "$with_kerberos" != no; then
171 AH_TEMPLATE(KERBEROS,
172 [Define to support Kerberos-authenticated POP mail retrieval.])dnl
174 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
175 if test "${with_kerberos5}" != no; then
176 if test "${with_kerberos}" = no; then
180 AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
183 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
184 dnl FIXME hesiod support may not be present, so it seems like an error
185 dnl to define, or at least use, this unconditionally.
186 if test "$with_hesiod" != no; then
187 AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
190 OPTION_DEFAULT_OFF([mmdf],[support MMDF mailboxes])
191 if test "$with_mmdf" != no; then
192 AC_DEFINE(MAIL_USE_MMDF, 1, [Define to support MMDF mailboxes in movemail.])
195 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
196 if test "$with_mail_unlink" != no; then
197 AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
200 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
201 [string giving default POP mail host])],
202 AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
204 AC_ARG_WITH([sound],[AS_HELP_STRING([--with-sound=VALUE],
205 [compile with sound support (VALUE one of: yes, alsa, oss, bsd-ossaudio, no;
206 default yes). Only for GNU/Linux, FreeBSD, NetBSD, MinGW.])],
207 [ case "${withval}" in
208 yes|no|alsa|oss|bsd-ossaudio) val=$withval ;;
209 *) AC_MSG_ERROR([`--with-sound=$withval' is invalid;
210 this option's value should be `yes', `no', `alsa', `oss', or `bsd-ossaudio'.])
215 [with_sound=$with_features])
217 dnl FIXME currently it is not the last.
218 dnl This should be the last --with option, because --with-x is
219 dnl added later on when we find the file name of X, and it's best to
220 dnl keep them together visually.
221 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
222 [use an X toolkit (KIT one of: yes or gtk, gtk2, gtk3, lucid or athena, motif, no)])],
223 [ case "${withval}" in
224 y | ye | yes ) val=gtk ;;
226 l | lu | luc | luci | lucid ) val=lucid ;;
227 a | at | ath | athe | athen | athena ) val=athena ;;
228 m | mo | mot | moti | motif ) val=motif ;;
229 g | gt | gtk ) val=gtk ;;
233 AC_MSG_ERROR([`--with-x-toolkit=$withval' is invalid;
234 this option's value should be `yes', `no', `lucid', `athena', `motif', `gtk',
235 `gtk2' or `gtk3'. `yes' and `gtk' are synonyms.
236 `athena' and `lucid' are synonyms.])
242 OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit)])
243 if test "$with_wide_int" = yes; then
244 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
247 dnl _ON results in a '--without' option in the --help output, so
248 dnl the help text should refer to "don't compile", etc.
249 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
250 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
251 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
252 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
253 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
254 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
255 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
256 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
258 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
259 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
260 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
262 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
263 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
264 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
265 OPTION_DEFAULT_OFF([ns],[use NeXTstep (Cocoa or GNUstep) windowing system])
266 OPTION_DEFAULT_OFF([w32], [use native MS Windows GUI in a Cygwin build])
268 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
269 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
270 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
271 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
272 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
273 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
274 OPTION_DEFAULT_ON([zlib],[don't compile with zlib decompression support])
276 AC_ARG_WITH([file-notification],[AS_HELP_STRING([--with-file-notification=LIB],
277 [use a file notification library (LIB one of: yes, gfile, inotify, w32, no)])],
278 [ case "${withval}" in
279 y | ye | yes ) val=yes ;;
281 g | gf | gfi | gfil | gfile ) val=gfile ;;
282 i | in | ino | inot | inoti | inotif | inotify ) val=inotify ;;
283 w | w3 | w32 ) val=w32 ;;
284 * ) AC_MSG_ERROR([`--with-file-notification=$withval' is invalid;
285 this option's value should be `yes', `no', `gfile', `inotify' or `w32'.
286 `yes' is a synonym for `w32' on MS-Windows, for `no' on Nextstep,
287 otherwise for the first of `gfile' or `inotify' that is usable.])
290 with_file_notification=$val
292 [with_file_notification=$with_features])
294 ## For the times when you want to build Emacs but don't have
295 ## a suitable makeinfo, and can live without the manuals.
296 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
297 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
299 ## This might be a 'configure' arg.
300 AC_SUBST([ACLOCAL_PATH])
302 ## Makefile.in needs the cache file name.
305 ## This is an option because I do not know if all info/man support
306 ## compressed files, nor how to test if they do so.
307 OPTION_DEFAULT_ON([compress-install],
308 [don't compress some files (.el, .info, etc.) when installing. Equivalent to:
309 make GZIP_PROG= install])
311 AC_ARG_WITH(gameuser,dnl
312 [AS_HELP_STRING([--with-gameuser=USER],[user for shared game score files])])
313 test "X${with_gameuser}" != X && test "${with_gameuser}" != yes \
314 && gameuser="${with_gameuser}"
315 test "X$gameuser" = X && gameuser=games
317 AC_ARG_WITH([gnustep-conf],dnl
318 [AS_HELP_STRING([--with-gnustep-conf=FILENAME],
319 [name of GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
320 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
321 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
322 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
323 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
325 AC_ARG_ENABLE(ns-self-contained,
326 [AS_HELP_STRING([--disable-ns-self-contained],
327 [disable self contained build under NeXTstep])],
328 EN_NS_SELF_CONTAINED=$enableval,
329 EN_NS_SELF_CONTAINED=yes)
331 AC_ARG_ENABLE(locallisppath,
332 [AS_HELP_STRING([--enable-locallisppath=PATH],
333 [directories Emacs should search for lisp files specific
335 if test "${enableval}" = "no"; then
337 elif test "${enableval}" != "yes"; then
338 locallisppath=${enableval}
341 AC_ARG_ENABLE(checking,
342 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
343 [enable expensive run-time checks. With LIST,
344 enable only specific categories of checks.
345 Categories are: all,yes,no.
346 Flags are: stringbytes, stringoverrun, stringfreelist,
347 xmallocoverrun, conslist, glyphs])],
348 [ac_checking_flags="${enableval}"],[])
349 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
350 for check in $ac_checking_flags
353 # these set all the flags to specific states
354 yes) ac_enable_checking=1 ;;
355 no) ac_enable_checking= ;
356 ac_gc_check_stringbytes= ;
357 ac_gc_check_string_overrun= ;
358 ac_gc_check_string_free_list= ;
359 ac_xmalloc_overrun= ;
360 ac_gc_check_cons_list= ;
362 all) ac_enable_checking=1 ;
363 ac_gc_check_stringbytes=1 ;
364 ac_gc_check_string_overrun=1 ;
365 ac_gc_check_string_free_list=1 ;
366 ac_xmalloc_overrun=1 ;
367 ac_gc_check_cons_list=1 ;
369 # these enable particular checks
370 stringbytes) ac_gc_check_stringbytes=1 ;;
371 stringoverrun) ac_gc_check_string_overrun=1 ;;
372 stringfreelist) ac_gc_check_string_free_list=1 ;;
373 xmallocoverrun) ac_xmalloc_overrun=1 ;;
374 conslist) ac_gc_check_cons_list=1 ;;
375 glyphs) ac_glyphs_debug=1 ;;
376 *) AC_MSG_ERROR(unknown check category $check) ;;
381 if test x$ac_enable_checking != x ; then
382 AC_DEFINE(ENABLE_CHECKING, 1,
383 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
385 if test x$ac_gc_check_stringbytes != x ; then
386 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
387 [Define this temporarily to hunt a bug. If defined, the size of
388 strings is redundantly recorded in sdata structures so that it can
389 be compared to the sizes recorded in Lisp strings.])
391 if test x$ac_gc_check_string_overrun != x ; then
392 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
393 [Define this to check for short string overrun.])
395 if test x$ac_gc_check_string_free_list != x ; then
396 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
397 [Define this to check the string free list.])
399 if test x$ac_xmalloc_overrun != x ; then
400 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
401 [Define this to check for malloc buffer overrun.])
403 if test x$ac_gc_check_cons_list != x ; then
404 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
405 [Define this to check for errors in cons list.])
407 if test x$ac_glyphs_debug != x ; then
408 AC_DEFINE(GLYPH_DEBUG, 1,
409 [Define this to enable glyphs debugging code.])
412 AC_ARG_ENABLE(check-lisp-object-type,
413 [AS_HELP_STRING([--enable-check-lisp-object-type],
414 [enable compile time checks for the Lisp_Object data type.
415 This is useful for development for catching certain types of bugs.])],
416 if test "${enableval}" != "no"; then
417 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
418 [Define this to enable compile time checks for the Lisp_Object data type.])
422 dnl The name of this option is unfortunate. It predates, and has no
423 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
424 dnl Actually, it stops it working.
425 dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
426 AC_ARG_ENABLE(profiling,
427 [AS_HELP_STRING([--enable-profiling],
428 [build emacs with low-level, gprof profiling support.
429 Mainly useful for debugging Emacs itself. May not work on
430 all platforms. Stops profiler.el working.])],
431 [ac_enable_profiling="${enableval}"],[])
432 if test x$ac_enable_profiling != x ; then
433 PROFILING_CFLAGS="-DPROFILING=1 -pg"
437 AC_SUBST(PROFILING_CFLAGS)
439 AC_ARG_ENABLE(autodepend,
440 [AS_HELP_STRING([--enable-autodepend],
441 [automatically generate dependencies to .h-files.
442 Requires gcc, enabled if found.])],
443 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
445 AC_ARG_ENABLE(gtk-deprecation-warnings,
446 [AS_HELP_STRING([--enable-gtk-deprecation-warnings],
447 [Show Gtk+/Gdk deprecation warnings for Gtk+ >= 3.0])],
448 [ac_enable_gtk_deprecation_warnings="${enableval}"],[])
450 ### Canonicalize the configuration name.
454 configuration=${host_alias-${build_alias-$host}}
456 dnl This used to use changequote, but, apart from `changequote is evil'
457 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
458 dnl the great gob of text. Thus it's not processed for possible expansion.
459 dnl Just make sure the brackets remain balanced.
461 dnl Since Emacs can't find matching pairs of quotes, boundaries are
462 dnl indicated by comments.
466 ### If you add support for a new configuration, add code to this
467 ### switch statement to recognize your configuration name and select
468 ### the appropriate opsys.
470 ### As far as handling version numbers on operating systems is
471 ### concerned, make sure things will fail in a fixable way. If
472 ### /etc/MACHINES doesn't say anything about version numbers, be
473 ### prepared to handle anything reasonably. If version numbers
474 ### matter, be sure /etc/MACHINES says something about it.
477 case "${canonical}" in
479 ## GNU/Linux and similar ports
494 ## FreeBSD kernel + glibc based userland
505 *-*-openbsd* | *-*-mirbsd* )
509 ## Apple Darwin / Mac OS X
511 case "${canonical}" in
518 ## Use fink packages if available.
519 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
520 ## if test -d /sw/include && test -d /sw/lib; then
521 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
522 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
531 ## HP 9000 series 700 and 800, running HP/UX
535 hppa*-hp-hpux1[1-9]* )
537 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
541 rs6000-ibm-aix4.[23]* )
544 powerpc-ibm-aix4.[23]* )
547 rs6000-ibm-aix[56]* )
550 powerpc-ibm-aix[5-9]* | powerpc-ibm-aix[1-9][0-9]* )
554 ## Silicon Graphics machines
558 # Without defining _LANGUAGE_C, things get masked out in the headers
559 # so that, for instance, grepping for `free' in stdlib.h fails and
560 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
561 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
566 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
567 | x86_64-*-solaris2* | x86_64-*-sunos5*)
568 case "${canonical}" in
570 amd64-*-*|x86_64-*-*) ;;
574 case "${canonical}" in
575 *-sunos5.[1-9][0-9]* | *-solaris2.[1-9][0-9]* )
577 emacs_check_sunpro_c=yes
579 *-sunos5.6* | *-solaris2.6* )
583 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
585 emacs_check_sunpro_c=yes
588 ## Watch out for a compiler that we know will not work.
589 case "${canonical}" in
590 *-solaris* | *-sunos5* )
591 if [ "x$CC" = x/usr/ucb/cc ]; then
592 ## /usr/ucb/cc doesn't work;
593 ## we should find some other compiler that does work.
601 ## Intel 386 machines where we don't care about the manufacturer.
603 case "${canonical}" in
604 *-darwin* ) opsys=darwin ;;
607 # MinGW overrides and adds some system headers in nt/inc.
608 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
610 *-sysv4.2uw* ) opsys=unixware ;;
611 *-sysv5uw* ) opsys=unixware ;;
612 *-sysv5OpenUNIX* ) opsys=unixware ;;
613 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
619 case "${canonical}" in
622 # MinGW overrides and adds some system headers in nt/inc.
623 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
625 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
634 ### If the code above didn't choose an operating system, just choose
635 ### an operating system based on the configuration name. You really
636 ### only want to use this when you have no idea what the right
637 ### operating system is; if you know what operating systems a machine
638 ### runs, it's cleaner to make it explicit in the case statement
640 if test x"${opsys}" = x; then
641 case "${canonical}" in
642 *-gnu* ) opsys=gnu ;;
652 if test $unported = yes; then
653 AC_MSG_ERROR([Emacs does not support `${canonical}' systems.
654 If you think it should, please send a report to ${PACKAGE_BUGREPORT}.
655 Check `etc/MACHINES' for recognized configuration names.])
659 AC_MSG_CHECKING([whether we are using GNU Make])
660 testval=`${MAKE-make} --version 2>/dev/null | grep 'GNU Make'`
661 if test "x$testval" != x; then
665 AC_MSG_ERROR([Building Emacs requires GNU make.
666 If you have it installed under another name, configure with 'MAKE=...'.
667 For example, run './configure MAKE=gmake'.])
671 #### Choose a compiler.
673 dnl Don't bother to test for C89.
674 AC_DEFUN([_AC_PROG_CC_C89], [$2])
676 dnl Sets GCC=yes if using gcc.
677 AC_PROG_CC([gcc cc cl clang "$XCRUN gcc" "$XCRUN clang"])
678 if test -n "$XCRUN"; then
679 AC_CHECK_PROGS(AR, [ar "$XCRUN ar"])
680 test -n "$AR" && export AR
683 dnl Emacs needs C99 or later.
688 if test x$GCC = xyes; then
689 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
691 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
694 dnl This is used in lib/Makefile.am to use nt/gnulib.mk, the
695 dnl alternative to lib/gnulib.mk, so as to avoid generating header files
696 dnl that clash with MinGW.
697 AM_CONDITIONAL([BUILDING_FOR_WINDOWSNT], [test "x$opsys" = "xmingw32"])
699 # Avoid gnulib's tests for -lcrypto, so that there's no static dependency on it.
700 AC_DEFUN([gl_CRYPTO_CHECK])
701 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
702 # as we don't use them.
703 AC_DEFUN([gl_FCNTL_O_FLAGS])
704 # Avoid gnulib's threadlib module, as we do threads our own way.
705 AC_DEFUN([gl_THREADLIB])
707 # Initialize gnulib right after choosing the compiler.
708 dnl Amongst other things, this sets AR and ARFLAGS.
711 if test "$ac_test_CFLAGS" != set; then
712 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
713 # if -g3 works and the user does not specify CFLAGS.
714 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
717 emacs_g3_CFLAGS='-g3';;
719 emacs_g3_CFLAGS='-g3 -O2';;
723 if test -n "$emacs_g3_CFLAGS"; then
724 emacs_save_CFLAGS=$CFLAGS
725 CFLAGS=$emacs_g3_CFLAGS
726 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
727 [emacs_cv_prog_cc_g3],
728 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
729 [emacs_cv_prog_cc_g3=yes],
730 [emacs_cv_prog_cc_g3=no])])
731 if test $emacs_cv_prog_cc_g3 != yes; then
732 CFLAGS=$emacs_save_CFLAGS
734 if test $opsys = mingw32; then
735 CFLAGS="$CFLAGS -gdwarf-2"
742 # No optimization flag was inferred for this non-GCC compiler.
743 # Try -O. This is needed for xlc on AIX; see Bug#14258.
744 emacs_save_CFLAGS=$CFLAGS
745 test -z "$CFLAGS" || CFLAGS="$CFLAGS "
747 AC_CACHE_CHECK([whether $CC accepts -O],
748 [emacs_cv_prog_cc_o],
749 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
750 [emacs_cv_prog_cc_o=yes],
751 [emacs_cv_prog_cc_o=no])])
752 if test $emacs_cv_prog_cc_o != yes; then
753 CFLAGS=$emacs_save_CFLAGS
758 AC_ARG_ENABLE([gcc-warnings],
759 [AS_HELP_STRING([--enable-gcc-warnings],
760 [turn on lots of GCC warnings/errors. This is intended for
761 developers, and may generate false alarms when used
762 with older or non-GNU development tools.])],
765 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
767 gl_gcc_warnings=$enableval],
771 # clang is unduly picky about some things.
772 AC_CACHE_CHECK([whether the compiler is clang], [emacs_cv_clang],
779 [emacs_cv_clang=yes],
780 [emacs_cv_clang=no])])
782 # When compiling with GCC, prefer -isystem to -I when including system
783 # include files, to avoid generating useless diagnostics for the files.
784 if test "$gl_gcc_warnings" != yes; then
786 if test "$emacs_cv_clang" = yes
788 # Turn off some warnings if supported.
789 gl_WARN_ADD([-Wno-switch])
790 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
791 gl_WARN_ADD([-Wno-pointer-sign])
796 # This, $nw, is the list of warnings we disable.
799 case $with_x_toolkit in
800 lucid | athena | motif)
801 # Old toolkits mishandle 'const'.
802 nw="$nw -Wwrite-strings"
805 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
808 AC_SUBST([WERROR_CFLAGS])
810 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
811 nw="$nw -Woverlength-strings" # Not a problem these days
812 nw="$nw -Wlogical-op" # any use of fwrite provokes this
813 nw="$nw -Wformat-nonliteral" # we do this a lot
814 nw="$nw -Wvla" # warnings in gettext.h
815 nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
816 nw="$nw -Wswitch-default" # Too many warnings for now
817 nw="$nw -Winline" # OK to ignore 'inline'
818 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
819 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
820 # signed overflow has undefined behavior
821 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
822 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
823 nw="$nw -Wbad-function-cast" # These casts are no worse than others.
825 # Emacs doesn't care about shadowing; see
826 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
829 # Emacs's use of alloca inhibits protecting the stack.
830 nw="$nw -Wstack-protector"
832 # The following line should be removable at some point.
833 nw="$nw -Wsuggest-attribute=pure"
835 # This part is merely for shortening the command line,
836 # since -Wno-FOO needs to be added below regardless.
837 nw="$nw -Wmissing-field-initializers"
839 nw="$nw -Wtype-limits"
840 nw="$nw -Wunused-parameter"
842 if test $emacs_cv_clang = yes; then
843 nw="$nw -Wcast-align"
846 gl_MANYWARN_ALL_GCC([ws])
847 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
851 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
852 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
853 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
854 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
855 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
856 gl_WARN_ADD([-Wno-format-nonliteral])
858 # In spite of excluding -Wlogical-op above, it is enabled, as of
859 # gcc 4.5.0 20090517.
860 gl_WARN_ADD([-Wno-logical-op])
862 # More things that clang is unduly picky about.
863 if test $emacs_cv_clang = yes; then
864 gl_WARN_ADD([-Wno-format-extra-args])
865 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
866 gl_WARN_ADD([-Wno-unused-command-line-argument])
867 gl_WARN_ADD([-Wno-unused-value])
870 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
871 AH_VERBATIM([FORTIFY_SOURCE],
872 [/* Enable compile-time and run-time bounds-checking, and some warnings,
873 without upsetting glibc 2.15+. */
874 #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
875 # define _FORTIFY_SOURCE 2
878 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
880 # We use a slightly smaller set of warning options for lib/.
881 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
883 nw="$nw -Wunused-macros"
885 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
886 AC_SUBST([GNULIB_WARN_CFLAGS])
896 AC_ARG_ENABLE(link-time-optimization,
897 [AS_HELP_STRING([--enable-link-time-optimization],
898 [build emacs with link-time optimization.
899 This is supported for gcc since 4.5.0 and clang.
900 Note that clang support is experimental - see INSTALL])],
901 if test "${enableval}" != "no"; then
903 if test $emacs_cv_clang = yes; then
904 AC_MSG_CHECKING([whether link-time optimization is supported by clang])
905 GOLD_PLUGIN=`$CC -print-file-name=LLVMgold.so 2>/dev/null`
906 if test -x "$GOLD_PLUGIN"; then
909 elif test x$GCC = xyes; then
910 AC_MSG_CHECKING([whether link-time optimization is supported by gcc])
911 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
912 if test x$CPUS != x; then
918 AC_MSG_ERROR([Link-time optimization is not supported with your compiler.])
920 if test -z "$LTO"; then
924 CFLAGS="$CFLAGS $LTO"
925 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
926 [ac_lto_supported=yes], [ac_lto_supported=no])
929 AC_MSG_RESULT([$ac_lto_supported])
930 if test "$ac_lto_supported" = "yes"; then
931 CFLAGS="$CFLAGS $LTO"
932 if test x$emacs_cv_clang = xyes; then
933 AC_MSG_WARN([Please read INSTALL before using link-time optimization with clang])
934 # WARNING: 'ar --plugin ...' doesn't work without
935 # command, so plugin name is appended to ARFLAGS.
936 ARFLAGS="cru --plugin $GOLD_PLUGIN"
937 RANLIB="$RANLIB --plugin $GOLD_PLUGIN"
942 dnl Some other nice autoconf tests.
943 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
946 dnl if test "x$RANLIB" = x; then
951 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
952 dnl can be made to directories. This is not relevant for our usage, and
953 dnl excludes some cases that work fine for us. Eg MS Windows or files
954 dnl hosted on AFS, both examples where simple links work, but links to
955 dnl directories fail. We use a cut-down version instead.
958 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
959 rm -f conf$$ conf$$.file
961 LN_S_FILEONLY='cp -p'
963 dnl On MinGW, ensure we will call the MSYS /bin/ln.exe, not some
964 dnl random program in the current directory.
965 if (echo >conf$$.file) 2>/dev/null; then
966 if ln -s conf$$.file conf$$ 2>/dev/null; then
967 if test "$opsys" = "mingw32"; then
968 LN_S_FILEONLY='/bin/ln -s'
970 LN_S_FILEONLY='ln -s'
972 elif ln conf$$.file conf$$ 2>/dev/null; then
973 if test "$opsys" = "mingw32"; then
974 LN_S_FILEONLY=/bin/ln
981 rm -f conf$$ conf$$.file
983 if test "$LN_S_FILEONLY" = "ln -s"; then
986 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
989 AC_SUBST(LN_S_FILEONLY)
992 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
993 dnl doesn't support links to directories, as in "ln file dir". But that
994 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
995 dnl executables at "make install" time.
996 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
997 dnl for more details.
998 if test "$opsys" = "mingw32"; then
1002 dnl On some Debian versions, "install-info" prints irritating messages
1003 dnl "This is not dpkg install-info anymore, but GNU install-info"
1004 dnl if called via an absolute file name.
1005 dnl Use the entirely-identical-but-quieter ginstall-info instead if present.
1006 dnl Sadly some people may have an old ginstall-info installed on
1007 dnl non-Debian systems, so we can't use this.
1008 dnl AC_PATH_PROGS(INSTALL_INFO, [ginstall-info install-info], :,
1009 dnl $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1011 AC_PATH_PROG(INSTALL_INFO, install-info, :,
1012 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1013 dnl Don't use GZIP, which is used by gzip for additional parameters.
1014 AC_PATH_PROG(GZIP_PROG, gzip)
1016 test $with_compress_install != yes && test -n "$GZIP_PROG" && \
1017 GZIP_PROG=" # $GZIP_PROG # (disabled by configure --without-compress-install)"
1019 if test $opsys = gnu-linux; then
1020 AC_PATH_PROG(PAXCTL, paxctl,,
1021 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
1022 if test "X$PAXCTL" != X; then
1023 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
1024 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1025 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
1026 else AC_MSG_RESULT(no); PAXCTL=""; fi])
1029 if test "${SETFATTR+set}" != set; then
1030 AC_CACHE_CHECK([for setfattr],
1031 [emacs_cv_prog_setfattr],
1033 if (setfattr -n user.pax.flags conftest.tmp) >/dev/null 2>&1; then
1034 emacs_cv_prog_setfattr=yes
1036 emacs_cv_prog_setfattr=no
1038 if test "$emacs_cv_prog_setfattr" = yes; then
1044 AC_SUBST([SETFATTR])
1048 ## Need makeinfo >= 4.7 (?) to build the manuals.
1049 AC_PATH_PROG(MAKEINFO, makeinfo, no)
1050 dnl By this stage, configure has already checked for egrep and set EGREP,
1051 dnl or exited with an error if no egrep was found.
1052 if test "$MAKEINFO" != "no"; then
1054 $MAKEINFO --version 2> /dev/null |
1055 $EGREP 'texinfo[[^0-9]]*([[1-4]][[0-9]]+|[[5-9]]|4\.[[7-9]]|4\.[[1-6]][[0-9]]+)'
1061 ## Makeinfo is unusual. For a released Emacs, the manuals are
1062 ## pre-built, and not deleted by the normal clean rules. makeinfo is
1063 ## therefore in the category of "special tools" not normally required, which
1064 ## configure does not have to check for (eg autoconf itself).
1065 ## In a repository checkout on the other hand, the manuals are not included.
1066 ## So makeinfo is a requirement to build from the repository, and configure
1067 ## should test for it as it does for any other build requirement.
1068 ## We use the presence of $srcdir/info/emacs to distinguish a release,
1069 ## with pre-built manuals, from a repository checkout.
1072 if test "$MAKEINFO" = "no"; then
1074 if test "x${with_makeinfo}" = "xno"; then
1076 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
1077 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
1078 source tree does not seem to have pre-built manuals in the `info' directory.
1079 Either install a suitable version of makeinfo, or re-run configure
1080 with the `--without-makeinfo' option to build without the manuals.] )
1083 AC_SUBST(HAVE_MAKEINFO)
1085 dnl Just so that there is only a single place we need to edit.
1087 INFO_OPTS=--no-split
1091 if test $opsys = mingw32; then
1092 DOCMISC_W32=efaq-w32
1096 AC_SUBST(DOCMISC_W32)
1098 dnl Add our options to ac_link now, after it is set up.
1100 if test x$GCC = xyes; then
1101 test "x$GCC_LINK_TEST_OPTIONS" != x && \
1102 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1104 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
1105 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1108 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
1109 dnl If we can link with the flag, it shouldn't do any harm anyhow.
1110 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
1111 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
1112 dnl if not built to support GNU ld.
1114 dnl For a long time, -znocombreloc was added to LDFLAGS rather than
1115 dnl LD_SWITCH_SYSTEM_TEMACS. That is:
1116 dnl * inappropriate, as LDFLAGS is a user option but this is essential.
1117 dnl Eg "make LDFLAGS=... all" could run into problems,
1118 dnl http://bugs.debian.org/684788
1119 dnl * unnecessary, since temacs is the only thing that actually needs it.
1120 dnl Indeed this is where it was originally, prior to:
1121 dnl http://lists.gnu.org/archive/html/emacs-pretest-bug/2004-03/msg00170.html
1122 late_LDFLAGS="$LDFLAGS"
1123 if test x$GCC = xyes; then
1124 LDFLAGS_NOCOMBRELOC="-Wl,-znocombreloc"
1126 LDFLAGS_NOCOMBRELOC="-znocombreloc"
1129 LDFLAGS="$LDFLAGS $LDFLAGS_NOCOMBRELOC"
1131 AC_MSG_CHECKING([for -znocombreloc])
1132 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1133 [AC_MSG_RESULT(yes)],
1134 LDFLAGS_NOCOMBRELOC=
1135 [AC_MSG_RESULT(no)])
1137 LDFLAGS="$late_LDFLAGS"
1139 AC_CACHE_CHECK([whether addresses are sanitized],
1140 [emacs_cv_sanitize_address],
1143 [[#ifndef __has_feature
1144 #define __has_feature(f) 0
1146 #if defined __SANITIZE_ADDRESS__ || __has_feature (address_sanitizer)
1148 error "Addresses are not sanitized.";
1151 [emacs_cv_sanitize_address=yes],
1152 [emacs_cv_sanitize_address=no])])
1154 dnl The function dump-emacs will not be defined and temacs will do
1155 dnl (load "loadup") automatically unless told otherwise.
1156 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
1158 your-opsys-here) CANNOT_DUMP=yes ;;
1161 if test "$CANNOT_DUMP" = "yes"; then
1162 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1163 elif test "$emacs_cv_sanitize_address" = yes; then
1164 AC_MSG_WARN([[Addresses are sanitized; suggest CANNOT_DUMP=yes]])
1167 AC_SUBST(CANNOT_DUMP)
1170 UNEXEC_OBJ=unexelf.o
1172 # MSDOS uses unexcoff.o
1174 UNEXEC_OBJ=unexaix.o
1180 UNEXEC_OBJ=unexmacosx.o
1183 UNEXEC_OBJ=unexhp9k800.o
1186 UNEXEC_OBJ=unexw32.o
1189 # Use the Solaris dldump() function, called from unexsol.c, to dump
1190 # emacs, instead of the generic ELF dump code found in unexelf.c.
1191 # The resulting binary has a complete symbol table, and is better
1192 # for debugging and other observability tools (debuggers, pstack, etc).
1194 # If you encounter a problem using dldump(), please consider sending
1195 # a message to the OpenSolaris tools-linking mailing list:
1196 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1198 # It is likely that dldump() works with older Solaris too, but this has
1199 # not been tested, so for now this change is for Solaris 10 or newer.
1200 UNEXEC_OBJ=unexsol.o
1207 ## Let `ld' find image libs and similar things in /usr/local/lib.
1208 ## The system compiler, GCC, has apparently been modified to not
1209 ## look there, contrary to what a stock GCC would do.
1210 ### It's not our place to do this. See bug#10313#17.
1211 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1216 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1217 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1221 ### It's not our place to do this. See bug#10313#17.
1222 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1227 ## Han Boetes <han@boetes.org> says this is necessary,
1228 ## otherwise Emacs dumps core on elf systems.
1229 LD_SWITCH_SYSTEM="-Z"
1232 AC_SUBST(LD_SWITCH_SYSTEM)
1234 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1236 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1237 ## which has not been defined yet. When this was handled with cpp,
1238 ## it was expanded to null when configure sourced the s/*.h file.
1239 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1240 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1241 ## (or somesuch), but because it is supposed to go at the _front_
1242 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1243 ## Compare with the gnu-linux case below, which added to the end
1244 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1245 ## LD_SWITCH_SYSTEM_TEMACS.
1248 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1255 AC_CHECK_DECL([__ELF__])
1256 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1257 ## With ELF, make sure that all common symbols get allocated to in the
1258 ## data section. Otherwise, the dump of temacs may miss variables in
1259 ## the shared library that have been initialized. For example, with
1260 ## GNU libc, __malloc_initialized would normally be resolved to the
1261 ## shared library's .bss section, which is fatal.
1262 if test "x$GCC" = "xyes"; then
1263 C_SWITCH_MACHINE="-fno-common"
1265 AC_MSG_ERROR([Non-GCC compilers are not supported.])
1268 dnl This was the unexalpha.c case. Removed in 24.1, 2010-07-24,
1269 dnl albeit under the mistaken assumption that said file
1270 dnl was no longer used.
1271 AC_MSG_ERROR([Non-ELF systems are not supported since Emacs 24.1.])
1275 AC_SUBST(C_SWITCH_MACHINE)
1277 AC_SUBST(UNEXEC_OBJ)
1280 ## Some programs in src produce warnings saying certain subprograms
1281 ## are too complex and need a MAXMEM value greater than 2000 for
1282 ## additional optimization. --nils@exp-math.uni-essen.de
1283 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1284 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1285 if test "$opsys" = "mingw32"; then
1286 case "$canonical" in
1287 x86_64-*-mingw32) C_SWITCH_SYSTEM="-mtune=generic" ;;
1288 *) C_SWITCH_SYSTEM="-mtune=pentium4" ;;
1291 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1292 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1293 AC_SUBST(C_SWITCH_SYSTEM)
1298 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1299 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1301 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1303 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1305 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1307 ## Motif needs -lgen.
1308 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1311 AC_SUBST(LIBS_SYSTEM)
1313 ### Make sure subsequent tests use flags consistent with the build flags.
1315 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1316 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1318 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1321 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C99 or better.
1322 AC_DEFUN([AC_TYPE_SIZE_T])
1323 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1324 AC_DEFUN([AC_TYPE_UID_T])
1326 # sqrt and other floating-point functions such as fmod and frexp
1327 # are found in -lm on many systems.
1329 AC_SEARCH_LIBS([sqrt], [m])
1330 if test "X$LIBS" = "X$OLD_LIBS"; then
1333 LIB_MATH=$ac_cv_search_sqrt
1337 dnl Current possibilities handled by sed (aix4-2 -> aix,
1338 dnl gnu-linux -> gnu/linux, etc.):
1339 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1340 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1341 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1348 ## Adding -lm confuses the dynamic linker, so omit it.
1351 freebsd | dragonfly )
1352 SYSTEM_TYPE=berkeley-unix
1354 gnu-linux | gnu-kfreebsd )
1356 hpux10-20 | hpux11 )
1360 SYSTEM_TYPE=windows-nt
1362 dnl NB this may be adjusted below.
1364 SYSTEM_TYPE=berkeley-unix
1368 SYSTEM_TYPE=usg-unix-v
1374 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1375 [The type of system you are compiling for; sets `system-type'.])
1378 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1379 pre_PKG_CONFIG_LIBS=$LIBS
1381 PKG_PROG_PKG_CONFIG(0.9.0)
1383 dnl EMACS_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4)
1384 dnl acts like PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4,
1385 dnl HAVE_GSTUFF=yes, HAVE_GSTUFF=no) -- see pkg-config man page --
1386 dnl except that it postprocesses CFLAGS as needed for --enable-gcc-warnings.
1387 dnl EMACS_CHECK_MODULES accepts optional 3rd and 4th arguments that
1388 dnl can take the place of the default HAVE_GSTUFF=yes and HAVE_GSTUFF=no
1390 AC_DEFUN([EMACS_CHECK_MODULES],
1391 [PKG_CHECK_MODULES([$1], [$2],
1392 [$1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1393 m4_default([$3], [HAVE_$1=yes])],
1394 [m4_default([$4], [HAVE_$1=no])])])
1397 if test "${with_sound}" != "no"; then
1398 # Sound support for GNU/Linux, the free BSDs, and MinGW.
1399 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h],
1400 have_sound_header=yes, [], [
1402 #define WIN32_LEAN_AND_MEAN
1403 #include <windows.h>
1406 test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
1407 AC_MSG_ERROR([OSS sound support requested but not found.])
1409 if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
1410 # Emulation library used on NetBSD.
1411 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1412 test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
1413 AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
1414 dnl FIXME? If we did find ossaudio, should we set with_sound=bsd-ossaudio?
1415 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1419 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1421 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1422 EMACS_CHECK_MODULES([ALSA], [$ALSA_MODULES])
1423 if test $HAVE_ALSA = yes; then
1424 SAVE_CFLAGS="$CFLAGS"
1426 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1427 LIBS="$ALSA_LIBS $LIBS"
1428 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1429 emacs_alsa_normal=yes,
1430 emacs_alsa_normal=no)
1431 if test "$emacs_alsa_normal" != yes; then
1432 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1433 [[snd_lib_error_set_handler (0);]])],
1434 emacs_alsa_subdir=yes,
1435 emacs_alsa_subdir=no)
1436 if test "$emacs_alsa_subdir" != yes; then
1437 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1439 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1442 CFLAGS="$SAVE_CFLAGS"
1444 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1445 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1446 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1447 elif test "${with_sound}" = "alsa"; then
1448 AC_MSG_ERROR([ALSA sound support requested but not found.])
1450 fi dnl with_sound = alsa|yes
1452 dnl Define HAVE_SOUND if we have sound support. We know it works and
1453 dnl compiles only on the specified platforms. For others, it
1454 dnl probably doesn't make sense to try.
1455 dnl FIXME So surely we should bypass this whole section if not using
1456 dnl one of these platforms?
1457 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1459 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1460 dnl Adjust the --with-sound help text if you change this.
1461 gnu-linux|freebsd|netbsd|mingw32)
1462 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1468 AC_SUBST(CFLAGS_SOUND)
1471 dnl checks for header files
1472 AC_CHECK_HEADERS_ONCE(
1476 sys/utsname.h pwd.h utmp.h util.h)
1478 AC_MSG_CHECKING(if personality LINUX32 can be set)
1479 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1480 emacs_cv_personality_linux32=yes,
1481 emacs_cv_personality_linux32=no)
1482 AC_MSG_RESULT($emacs_cv_personality_linux32)
1484 if test $emacs_cv_personality_linux32 = yes; then
1485 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1486 [Define to 1 if personality LINUX32 can be set.])
1489 dnl On Solaris 8 there's a compilation warning for term.h because
1490 dnl it doesn't define `bool'.
1491 AC_CHECK_HEADERS(term.h, , , -)
1493 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1495 if test $ac_cv_have_decl_sys_siglist != yes; then
1496 # For Tru64, at least:
1497 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1502 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1503 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1504 #if HAVE_SYS_SOCKET_H
1505 #include <sys/socket.h>
1507 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1508 #if HAVE_SYS_SOCKET_H
1509 #include <sys/socket.h>
1511 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1512 #if HAVE_SYS_SOCKET_H
1513 #include <sys/socket.h>
1516 dnl checks for structure members
1517 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1518 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1519 struct ifreq.ifr_addr,
1520 struct ifreq.ifr_addr.sa_len], , ,
1521 [AC_INCLUDES_DEFAULT
1522 #if HAVE_SYS_SOCKET_H
1523 #include <sys/socket.h>
1529 dnl Check for endianness.
1530 dnl AC_C_BIGENDIAN is done by gnulib.
1532 dnl check for Make feature
1533 dnl AC_PROG_MAKE_SET is done by Automake.
1538 dnl check if we have GCC and autodepend is on.
1539 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1540 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1541 SAVE_CFLAGS="$CFLAGS"
1542 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1543 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1544 CFLAGS="$SAVE_CFLAGS"
1545 test -f deps.d || ac_enable_autodepend=no
1547 AC_MSG_RESULT([$ac_enable_autodepend])
1548 if test $ac_enable_autodepend = yes; then
1549 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1550 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1551 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1552 deps_frag=autodeps.mk
1555 deps_frag=$srcdir/src/$deps_frag
1558 AC_SUBST_FILE(deps_frag)
1561 lisp_frag=$srcdir/src/lisp.mk
1562 AC_SUBST_FILE(lisp_frag)
1565 dnl checks for operating system services
1566 AC_SYS_LONG_FILE_NAMES
1568 #### Choose a window system.
1570 ## We leave window_system equal to none if
1571 ## we end up building without one. Any new window system should
1572 ## set window_system to an appropriate value and add objects to
1573 ## window-system-specific substs.
1577 if test "$no_x" != yes; then
1581 LD_SWITCH_X_SITE_RPATH=
1582 if test "${x_libraries}" != NONE; then
1583 if test -n "${x_libraries}"; then
1584 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1585 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1587 x_default_search_path=""
1588 x_search_path=${x_libraries}
1589 if test -z "${x_search_path}"; then
1590 x_search_path=/usr/lib
1592 for x_library in `echo ${x_search_path}: | \
1593 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1595 ${x_library}/X11/%L/%T/%N%C%S:\
1596 ${x_library}/X11/%l/%T/%N%C%S:\
1597 ${x_library}/X11/%T/%N%C%S:\
1598 ${x_library}/X11/%L/%T/%N%S:\
1599 ${x_library}/X11/%l/%T/%N%S:\
1600 ${x_library}/X11/%T/%N%S"
1601 if test x"${x_default_search_path}" = x; then
1602 x_default_search_path=${x_search_path}
1604 x_default_search_path="${x_search_path}:${x_default_search_path}"
1608 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1610 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1611 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1614 if test x"${x_includes}" = x; then
1615 bitmapdir=/usr/include/X11/bitmaps
1617 # accumulate include directories that have X11 bitmap subdirectories
1619 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1620 if test -d "${bmd}/X11/bitmaps"; then
1621 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1623 if test -d "${bmd}/bitmaps"; then
1624 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1627 if test ${bmd_acc} != "dummyval"; then
1628 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1635 tmp_CPPFLAGS="$CPPFLAGS"
1636 tmp_CFLAGS="$CFLAGS"
1637 CPPFLAGS="$CPPFLAGS -x objective-c"
1638 CFLAGS="$CFLAGS -x objective-c"
1641 if test "${with_ns}" != no; then
1642 if test "${opsys}" = darwin; then
1644 ns_appdir=`pwd`/nextstep/Emacs.app
1645 ns_appbindir=${ns_appdir}/Contents/MacOS
1646 ns_appresdir=${ns_appdir}/Contents/Resources
1647 ns_appsrc=Cocoa/Emacs.base
1648 elif test -f $GNUSTEP_CONFIG_FILE; then
1650 ns_appdir=`pwd`/nextstep/Emacs.app
1651 ns_appbindir=${ns_appdir}
1652 ns_appresdir=${ns_appdir}/Resources
1653 ns_appsrc=GNUstep/Emacs.base
1654 dnl FIXME sourcing this several times in subshells seems inefficient.
1655 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1656 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1657 dnl I seemed to need these as well with GNUstep-startup 0.25.
1658 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1659 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1660 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1661 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1662 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1663 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1664 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1665 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1666 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1667 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1668 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1669 dnl If they had chosen to either define it or not, we could have
1670 dnl just used AC_CHECK_DECL here.
1671 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1672 emacs_cv_objc_exceptions,
1673 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1674 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1678 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1679 if test $emacs_cv_objc_exceptions = yes; then
1680 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1681 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1682 [Define if GNUstep uses ObjC exceptions.])
1683 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1687 dnl This is only used while we test the NS headers, it gets reset below.
1688 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1690 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1691 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1692 files are missing or cannot be compiled.])])
1695 if test "${NS_IMPL_COCOA}" = "yes"; then
1696 AC_MSG_CHECKING([for OSX 10.4 or newer])
1697 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1699 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1700 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
1703 error "OSX 10.4 or newer required";
1707 ns_osx_have_104=yes,
1709 AC_MSG_RESULT([$ns_osx_have_104])
1711 if test $ns_osx_have_104 = no; then
1712 AC_MSG_ERROR([`OSX 10.4 or newer is required']);
1714 AC_MSG_CHECKING([for OSX 10.5 or newer])
1715 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1717 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1718 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1050
1721 error "OSX 10.5 not found";
1725 ns_osx_have_105=yes,
1727 AC_MSG_RESULT([$ns_osx_have_105])
1728 if test $ns_osx_have_105 = yes; then
1729 macfont_file="macfont.o"
1732 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1734 ns_have_nsinteger=yes,
1735 ns_have_nsinteger=no)
1736 if test $ns_have_nsinteger = yes; then
1737 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1741 AC_SUBST(LIBS_GNUSTEP)
1743 INSTALL_ARCH_INDEP_EXTRA=install-etc
1744 ns_self_contained=no
1747 if test "${HAVE_NS}" = yes; then
1748 if test "$with_toolkit_scroll_bars" = "no"; then
1749 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1752 window_system=nextstep
1753 # set up packaging dirs
1754 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1755 ns_self_contained=yes
1756 prefix=${ns_appresdir}
1757 exec_prefix=${ns_appbindir}
1758 dnl This one isn't really used, only archlibdir is.
1759 libexecdir="\${ns_appbindir}/libexec"
1760 archlibdir="\${ns_appbindir}/libexec"
1761 etcdocdir="\${ns_appresdir}/etc"
1762 etcdir="\${ns_appresdir}/etc"
1763 dnl FIXME maybe set datarootdir instead.
1764 dnl That would also get applications, icons, man.
1765 infodir="\${ns_appresdir}/info"
1766 mandir="\${ns_appresdir}/man"
1767 lispdir="\${ns_appresdir}/lisp"
1768 INSTALL_ARCH_INDEP_EXTRA=
1771 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o $macfont_file"
1773 CFLAGS="$tmp_CFLAGS"
1774 CPPFLAGS="$tmp_CPPFLAGS"
1775 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1776 AC_SUBST(ns_self_contained)
1778 AC_SUBST(NS_OBJC_OBJ)
1789 if test "${with_w32}" != no; then
1792 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1793 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1794 cannot be found.])])
1797 ## Using --with-w32 with MinGW is a no-op, but we allow it.
1800 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
1805 if test "${opsys}" = "mingw32"; then
1806 AC_MSG_CHECKING([whether Windows API headers are recent enough])
1807 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1808 #include <windows.h>
1809 #include <usp10.h>]],
1810 [[PIMAGE_NT_HEADERS pHeader;
1811 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
1812 [emacs_cv_w32api=yes
1815 AC_MSG_RESULT($emacs_cv_w32api)
1816 if test "${emacs_cv_w32api}" = "no"; then
1817 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
1828 if test "${HAVE_W32}" = "yes"; then
1829 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1830 AC_CHECK_TOOL(WINDRES, [windres],
1831 [AC_MSG_ERROR([No resource compiler found.])])
1832 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1833 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1834 EMACSRES="emacs.res"
1835 case "$canonical" in
1836 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
1837 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
1839 if test "${opsys}" = "cygwin"; then
1840 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1841 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1842 # Tell the linker that emacs.res is an object (which we compile from
1843 # the rc file), not a linker script.
1844 W32_RES_LINK="-Wl,emacs.res"
1846 UPDATE_MANIFEST=update-game-score.exe.manifest
1847 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
1848 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
1849 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
1850 W32_RES_LINK="\$(EMACSRES)"
1851 CLIENTRES="emacsclient.res"
1852 CLIENTW="emacsclientw\$(EXEEXT)"
1853 FIRSTFILE_OBJ=firstfile.o
1856 LIBS_ECLIENT="-lcomctl32"
1857 LIB_WSOCK32="-lwsock32"
1858 NTLIB="ntlib.$ac_objext"
1859 XARGS_LIMIT="-s 10000"
1865 AC_SUBST(EMACS_MANIFEST)
1866 AC_SUBST(UPDATE_MANIFEST)
1869 AC_SUBST(W32_RES_LINK)
1870 AC_SUBST(FIRSTFILE_OBJ)
1873 AC_SUBST(LIBS_ECLIENT)
1874 AC_SUBST(LIB_WSOCK32)
1876 AC_SUBST(XARGS_LIMIT)
1878 if test "${HAVE_W32}" = "yes"; then
1883 ## $window_system is now set to the window system we will
1886 if test "$window_system" = none && test "$gl_gcc_warnings" = yes; then
1887 # Too many warnings for now.
1889 nw="$nw -Wsuggest-attribute=const"
1890 nw="$nw -Wsuggest-attribute=noreturn"
1891 gl_MANYWARN_COMPLEMENT([WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
1893 gl_WARN_ADD([-Wno-unused-variable])
1894 gl_WARN_ADD([-Wno-unused-but-set-variable])
1895 gl_WARN_ADD([-Wno-unused-but-set-parameter])
1903 case "${window_system}" in
1908 case "${with_x_toolkit}" in
1909 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1910 motif ) USE_X_TOOLKIT=MOTIF ;;
1912 term_header=gtkutil.h
1913 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1914 dnl USE_X_TOOLKIT is set.
1915 USE_X_TOOLKIT=none ;;
1916 gtk2 ) with_gtk2=yes
1917 term_header=gtkutil.h
1918 USE_X_TOOLKIT=none ;;
1919 gtk3 ) with_gtk3=yes
1920 term_header=gtkutil.h
1921 USE_X_TOOLKIT=none ;;
1922 no ) USE_X_TOOLKIT=none ;;
1923 dnl If user did not say whether to use a toolkit, make this decision later:
1924 dnl use the toolkit if we have gtk, or X11R5 or newer.
1925 * ) USE_X_TOOLKIT=maybe ;;
1929 term_header=nsterm.h
1932 term_header=w32term.h
1936 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1937 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1938 if test "$HAVE_XSERVER" = true ||
1939 test -n "$DISPLAY" ||
1940 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1941 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1942 were found. You should install the relevant development files for X
1943 and for the toolkit you want, such as Gtk+ or Motif. Also make
1944 sure you have development files for image handling, i.e.
1945 tiff, gif, jpeg, png and xpm.
1946 If you are sure you want Emacs compiled without X window support, pass
1952 # Does the opsystem file prohibit the use of the GNU malloc?
1953 # Assume not, until told otherwise.
1957 [whether malloc is Doug Lea style],
1958 [emacs_cv_var_doug_lea_malloc],
1959 [emacs_cv_var_doug_lea_malloc=no
1960 dnl Hooks do not work with address sanitization.
1961 if test "$emacs_cv_sanitize_address" != yes; then
1964 [[#include <malloc.h>
1965 static void hook (void) {}]],
1966 [[malloc_set_state (malloc_get_state ());
1967 __after_morecore_hook = hook;
1968 __malloc_initialize_hook = hook;]])],
1969 [emacs_cv_var_doug_lea_malloc=yes])])
1971 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1973 system_malloc=$emacs_cv_sanitize_address
1975 ## darwin ld insists on the use of malloc routines in the System framework.
1976 darwin|sol2-10) system_malloc=yes ;;
1980 if test "${system_malloc}" = "yes"; then
1981 AC_DEFINE([SYSTEM_MALLOC], 1,
1982 [Define to 1 to use the system memory allocator, even if it is not
1986 (The GNU allocators don't work with this system configuration.)"
1989 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1990 VMLIMIT_OBJ=vm-limit.o
1992 AC_CHECK_HEADERS([sys/vlimit.h])
1993 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
1996 [[extern char data_start[]; char ch;]],
1997 [[return data_start < &ch;]])],
1998 [emacs_cv_data_start=yes],
1999 [emacs_cv_data_start=no])])
2000 if test $emacs_cv_data_start = yes; then
2001 AC_DEFINE([HAVE_DATA_START], 1,
2002 [Define to 1 if data_start is the address of the start
2003 of the main data segment.])
2006 AC_SUBST(GMALLOC_OBJ)
2007 AC_SUBST(VMLIMIT_OBJ)
2009 if test "$doug_lea_malloc" = "yes" ; then
2010 if test "$GNU_MALLOC" = yes ; then
2012 (Using Doug Lea's new malloc from the GNU C Library.)"
2014 AC_DEFINE(DOUG_LEA_MALLOC, 1,
2015 [Define to 1 if the system memory allocator is Doug Lea style,
2016 with malloc hooks and malloc_set_state.])
2018 ## Use mmap directly for allocating larger buffers.
2019 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
2020 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
2021 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
2023 gnu*) REL_ALLOC=no ;;
2027 if test x"${REL_ALLOC}" = x; then
2028 REL_ALLOC=${GNU_MALLOC}
2031 use_mmap_for_buffers=no
2033 cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
2037 if test $use_mmap_for_buffers = yes; then
2038 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
2042 LIBS="$LIBS_SYSTEM $LIBS"
2044 dnl FIXME replace main with a function we actually want from this library.
2045 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
2047 dnl Check for the POSIX thread library.
2049 AC_CHECK_HEADERS_ONCE(pthread.h)
2050 if test "$ac_cv_header_pthread_h"; then
2051 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
2052 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
2053 dnl testing for pthread_kill if Emacs uses gmalloc.c.
2054 if test "$GMALLOC_OBJ" = gmalloc.o; then
2055 emacs_pthread_function=pthread_atfork
2057 emacs_pthread_function=pthread_kill
2060 AC_SEARCH_LIBS([$emacs_pthread_function], [pthread],
2061 [AC_DEFINE([HAVE_PTHREAD], [1],
2062 [Define to 1 if you have pthread (-lpthread).])])
2063 if test "X$LIBS" != "X$OLD_LIBS"; then
2064 eval LIB_PTHREAD=\$ac_cv_search_$emacs_pthread_function
2068 AC_SUBST([LIB_PTHREAD])
2070 dnl Check for need for bigtoc support on IBM AIX
2074 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
2076 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
2077 *) gdb_cv_bigtoc=-bbigtoc ;;
2080 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
2081 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
2086 # Change CFLAGS, CPPFLAGS, and LIBS temporarily so that C_SWITCH_X_SITE
2087 # is for the tests that follow. We set them back later on.
2089 REAL_CFLAGS="$CFLAGS"
2090 REAL_CPPFLAGS="$CPPFLAGS"
2093 if test "${HAVE_X11}" = "yes"; then
2094 DEFS="$C_SWITCH_X_SITE $DEFS"
2095 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2097 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2098 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2100 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2101 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2102 # but it's more convenient here to set LD_RUN_PATH since this
2103 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2104 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2105 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2109 if test "${opsys}" = "gnu-linux"; then
2110 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2111 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2112 [[XOpenDisplay ("foo");]])],
2113 [xgnu_linux_first_failure=no],
2114 [xgnu_linux_first_failure=yes])
2115 if test "${xgnu_linux_first_failure}" = "yes"; then
2116 OLD_CPPFLAGS="$CPPFLAGS"
2118 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2119 LIBS="$LIBS -b i486-linuxaout"
2120 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2121 [[XOpenDisplay ("foo");]])],
2122 [xgnu_linux_second_failure=no],
2123 [xgnu_linux_second_failure=yes])
2124 if test "${xgnu_linux_second_failure}" = "yes"; then
2125 # If we get the same failure with -b, there is no use adding -b.
2126 # So leave it out. This plays safe.
2129 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2130 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2133 CPPFLAGS=$OLD_CPPFLAGS
2140 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2141 # header files included from there.
2142 AC_MSG_CHECKING(for Xkb)
2143 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2144 #include <X11/XKBlib.h>]],
2145 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2146 emacs_xkb=yes, emacs_xkb=no)
2147 AC_MSG_RESULT($emacs_xkb)
2148 if test $emacs_xkb = yes; then
2149 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2152 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2153 XScreenNumberOfScreen)
2156 if test "${window_system}" = "x11"; then
2157 AC_MSG_CHECKING(X11 version 6)
2158 AC_CACHE_VAL(emacs_cv_x11_version_6,
2159 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2160 [[#if XlibSpecificationRelease < 6
2163 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2164 if test $emacs_cv_x11_version_6 = yes; then
2165 AC_MSG_RESULT(6 or newer)
2166 AC_DEFINE(HAVE_X11R6, 1,
2167 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2168 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2169 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2173 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2174 [Define if you have usable X11R6-style XIM support.])
2178 AC_MSG_RESULT(before 6)
2183 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
2185 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2186 if test "${with_rsvg}" != "no"; then
2187 RSVG_REQUIRED=2.11.0
2188 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2190 EMACS_CHECK_MODULES([RSVG], [$RSVG_MODULE])
2191 AC_SUBST(RSVG_CFLAGS)
2194 if test $HAVE_RSVG = yes; then
2195 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2196 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2197 # Windows loads librsvg dynamically
2198 if test "${opsys}" = "mingw32"; then
2206 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${HAVE_W32}" = "yes"; then
2207 if test "${with_imagemagick}" != "no"; then
2208 ## 6.3.5 is the earliest version known to work; see Bug#17339.
2209 ## 6.8.2 makes Emacs crash; see Bug#13867.
2210 IMAGEMAGICK_MODULE="Wand >= 6.3.5 Wand != 6.8.2"
2211 EMACS_CHECK_MODULES([IMAGEMAGICK], [$IMAGEMAGICK_MODULE])
2212 AC_SUBST(IMAGEMAGICK_CFLAGS)
2213 AC_SUBST(IMAGEMAGICK_LIBS)
2215 if test $HAVE_IMAGEMAGICK = yes; then
2216 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2219 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2220 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2221 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
2231 gtk_term_header=$term_header
2234 if test "${opsys}" != "mingw32"; then
2235 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2238 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2240 dnl Checks for libraries.
2241 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2242 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2243 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2244 AC_MSG_ERROR($GTK_PKG_ERRORS)
2246 if test "$pkg_check_gtk" = "yes"; then
2247 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2248 GTK_OBJ=emacsgtkfixed.o
2249 gtk_term_header=gtkutil.h
2250 USE_GTK_TOOLKIT="GTK3"
2251 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2252 AC_DEFINE([GDK_DISABLE_DEPRECATION_WARNINGS], [1],
2253 [Define to 1 to disable GTK+/GDK deprecation warnings.])
2254 AC_DEFINE([GLIB_DISABLE_DEPRECATION_WARNINGS], [1],
2255 [Define to 1 to disable Glib deprecation warnings.])
2259 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2263 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2266 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2268 dnl Checks for libraries.
2269 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2270 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2271 if test "$pkg_check_gtk" = "no" &&
2272 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2274 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2276 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2283 if test x"$pkg_check_gtk" = xyes; then
2286 CFLAGS="$CFLAGS $GTK_CFLAGS"
2287 LIBS="$GTK_LIBS $LIBS"
2288 dnl Try to compile a simple GTK program.
2289 AC_MSG_CHECKING([whether GTK compiles])
2293 [[/* Check the Gtk and Glib APIs. */
2294 #include <gtk/gtk.h>
2295 #include <glib-object.h>
2297 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2301 GtkSettings *gs = 0;
2302 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2303 strict C prohibits this. Use gtk_main_iteration to test that the
2304 libraries are there. */
2305 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2306 0, 0, 0, G_CALLBACK (callback), 0))
2307 gtk_main_iteration ();
2310 AC_MSG_RESULT([$GTK_COMPILES])
2311 if test "${GTK_COMPILES}" != "yes"; then
2313 if test "$USE_X_TOOLKIT" != "maybe"; then
2314 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2317 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2319 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2320 GTK_OBJ="gtkutil.o $GTK_OBJ"
2321 term_header=$gtk_term_header
2323 if "$PKG_CONFIG" --atleast-version=2.10 gtk+-2.0; then
2326 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2327 closing open displays. This is no problem if you just use
2328 one display, but if you use more than one and close one of them
2338 if test "${HAVE_GTK}" = "yes"; then
2340 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2341 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2342 if test "$with_toolkit_scroll_bars" != no; then
2343 with_toolkit_scroll_bars=yes
2346 dnl Check if we have the old file selection dialog declared and
2347 dnl in the link library. In 2.x it may be in the library,
2348 dnl but not declared if deprecated featured has been selected out.
2349 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2350 HAVE_GTK_FILE_SELECTION=no
2351 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2352 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2353 #include <gtk/gtk.h>])
2354 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2355 AC_CHECK_FUNCS(gtk_file_selection_new)
2358 dnl Same as above for gtk_handle_box.
2359 HAVE_GTK_HANDLE_BOX=no
2360 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2361 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2362 #include <gtk/gtk.h>])
2363 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2364 AC_CHECK_FUNCS(gtk_handle_box_new)
2367 dnl Same as above for gtk_tearoff_menu_item.
2368 HAVE_GTK_TEAROFF_MENU_ITEM=no
2369 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2370 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2371 #include <gtk/gtk.h>])
2372 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2373 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2376 dnl Check for functions introduced in 2.14 and later.
2377 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2378 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2379 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2380 gtk_orientable_set_orientation \
2381 gtk_window_set_has_resize_grip)
2383 term_header=gtkutil.h
2389 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2390 dnl other platforms.
2393 if test "${with_dbus}" = "yes"; then
2394 EMACS_CHECK_MODULES([DBUS], [dbus-1 >= 1.0])
2395 if test "$HAVE_DBUS" = yes; then
2396 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2397 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2398 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2401 LIBS="$LIBS $DBUS_LIBS"
2402 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2403 dbus_type_is_valid \
2404 dbus_validate_bus_name \
2405 dbus_validate_path \
2406 dbus_validate_interface \
2407 dbus_validate_member)
2412 AC_SUBST(DBUS_CFLAGS)
2416 dnl GSettings has been tested under GNU/Linux only.
2418 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2419 EMACS_CHECK_MODULES([GSETTINGS], [gio-2.0 >= 2.26])
2420 if test "$HAVE_GSETTINGS" = "yes"; then
2422 CFLAGS="$CFLAGS $GSETTINGS_CFLAGS"
2424 LIBS="$LIBS $GSETTINGS_LIBS"
2425 AC_MSG_CHECKING([whether GSettings is in gio])
2428 [[/* Check that gsettings really is present. */
2429 #include <glib-object.h>
2430 #include <gio/gio.h>
2433 GSettings *settings;
2434 GVariant *val = g_settings_get_value (settings, "");
2436 [], HAVE_GSETTINGS=no)
2437 AC_MSG_RESULT([$HAVE_GSETTINGS])
2439 if test "$HAVE_GSETTINGS" = "yes"; then
2440 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2441 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2442 SETTINGS_LIBS="$GSETTINGS_LIBS"
2449 dnl GConf has been tested under GNU/Linux only.
2450 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2452 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2453 EMACS_CHECK_MODULES([GCONF], [gconf-2.0 >= 2.13])
2454 if test "$HAVE_GCONF" = yes; then
2455 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2456 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2457 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2458 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2462 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2463 EMACS_CHECK_MODULES([GOBJECT], [gobject-2.0 >= 2.0])
2464 if test "$HAVE_GOBJECT" = "yes"; then
2465 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2466 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2468 SAVE_CFLAGS="$CFLAGS"
2470 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2471 LIBS="$SETTINGS_LIBS $LIBS"
2472 CFLAGS="$SAVE_CFLAGS"
2475 AC_SUBST(SETTINGS_CFLAGS)
2476 AC_SUBST(SETTINGS_LIBS)
2479 dnl SELinux is available for GNU/Linux only.
2482 if test "${with_selinux}" = "yes"; then
2483 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2484 if test "$HAVE_LIBSELINUX" = yes; then
2485 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2486 LIBSELINUX_LIBS=-lselinux
2489 AC_SUBST(LIBSELINUX_LIBS)
2493 if test "${with_gnutls}" = "yes" ; then
2494 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 3.0.0],
2495 [HAVE_GNUTLS3=yes], [HAVE_GNUTLS3=no])
2496 if test "${HAVE_GNUTLS3}" = "yes"; then
2497 AC_DEFINE(HAVE_GNUTLS3, 1, [Define if using GnuTLS v3.])
2500 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6],
2501 [HAVE_GNUTLS=yes], [HAVE_GNUTLS=no])
2503 if test "${HAVE_GNUTLS}" = "yes"; then
2504 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2507 # Windows loads GnuTLS dynamically
2508 if test "${opsys}" = "mingw32"; then
2513 AC_SUBST(LIBGNUTLS_LIBS)
2514 AC_SUBST(LIBGNUTLS_CFLAGS)
2519 dnl FIXME? Don't auto-detect on NS, but do allow someone to specify
2520 dnl a particular library. This doesn't make much sense?
2521 if test "${with_ns}" = yes && test ${with_file_notification} = yes; then
2522 with_file_notification=no
2525 dnl MS Windows native file monitor is available for mingw32 only.
2526 case $with_file_notification,$opsys in
2527 w32,* | yes,mingw32)
2528 AC_CHECK_HEADER(windows.h)
2529 if test "$ac_cv_header_windows_h" = yes ; then
2530 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2531 NOTIFY_OBJ=w32notify.o
2532 NOTIFY_SUMMARY="yes (w32)"
2536 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2537 dnl has been added in glib 2.24. It has been tested under
2538 dnl GNU/Linux only. We take precedence over inotify, but this makes
2539 dnl only sense when glib has been compiled with inotify support. How
2541 case $with_file_notification,$NOTIFY_OBJ in
2543 EMACS_CHECK_MODULES([GFILENOTIFY], [gio-2.0 >= 2.24])
2544 if test "$HAVE_GFILENOTIFY" = "yes"; then
2545 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2546 NOTIFY_OBJ=gfilenotify.o
2547 NOTIFY_SUMMARY="yes -lgio (gfile)"
2551 dnl inotify is only available on GNU/Linux.
2552 case $with_file_notification,$NOTIFY_OBJ in
2554 AC_CHECK_HEADER(sys/inotify.h)
2555 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2556 AC_CHECK_FUNC(inotify_init1)
2557 if test "$ac_cv_func_inotify_init1" = yes; then
2558 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2559 NOTIFY_OBJ=inotify.o
2560 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2565 case $with_file_notification,$NOTIFY_OBJ in
2566 yes,* | no,* | *,?*) ;;
2567 *) AC_MSG_ERROR([File notification `$with_file_notification' requested but requirements not found.]) ;;
2570 if test -n "$NOTIFY_OBJ"; then
2571 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2573 AC_SUBST(NOTIFY_OBJ)
2574 AC_SUBST(GFILENOTIFY_CFLAGS)
2575 AC_SUBST(GFILENOTIFY_LIBS)
2577 dnl Do not put whitespace before the #include statements below.
2578 dnl Older compilers (eg sunos4 cc) choke on it.
2581 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2582 if test "$with_xaw3d" != no; then
2583 AC_CACHE_VAL(emacs_cv_xaw3d,
2584 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2585 #include <X11/Intrinsic.h>
2586 #include <X11/Xaw3d/Simple.h>]],
2588 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2589 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2590 emacs_cv_xaw3d=no)])
2594 if test $emacs_cv_xaw3d = yes; then
2595 AC_MSG_CHECKING(for xaw3d)
2596 AC_MSG_RESULT([yes; using Lucid toolkit])
2600 AC_DEFINE(HAVE_XAW3D, 1,
2601 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2603 AC_MSG_CHECKING(for xaw3d)
2605 AC_MSG_CHECKING(for libXaw)
2606 AC_CACHE_VAL(emacs_cv_xaw,
2607 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2608 #include <X11/Intrinsic.h>
2609 #include <X11/Xaw/Simple.h>]],
2613 if test $emacs_cv_xaw = yes; then
2614 AC_MSG_RESULT([yes; using Lucid toolkit])
2617 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2618 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2620 AC_MSG_ERROR([No X toolkit could be found.
2621 If you are sure you want Emacs compiled without an X toolkit, pass
2623 to configure. Otherwise, install the development libraries for the toolkit
2624 that you want to use (e.g. Gtk+) and re-run configure.])
2629 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2633 if test "${USE_X_TOOLKIT}" != "none"; then
2634 AC_MSG_CHECKING(X11 toolkit version)
2635 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2636 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2637 [[#if XtSpecificationRelease < 6
2640 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2641 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2642 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2643 AC_MSG_RESULT(6 or newer)
2644 AC_DEFINE(HAVE_X11XTR6, 1,
2645 [Define to 1 if you have the X11R6 or newer version of Xt.])
2646 LIBXTR6="-lSM -lICE"
2648 ## Use libw.a along with X11R6 Xt.
2649 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2652 AC_MSG_RESULT(before 6)
2655 dnl If using toolkit, check whether libXmu.a exists.
2656 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2658 if test x$HAVE_X11XTR6 = xyes; then
2659 OTHERLIBS='-lXt -lSM -lICE'
2663 AC_SEARCH_LIBS([XmuConvertStandardSelection], [Xmu], [], [], [$OTHERLIBS])
2664 if test "X$LIBS" != "X$OLDLIBS"; then
2665 LIBXMU=$ac_cv_search_XmuConvertStandardSelection
2668 dnl ac_cv_search_XmuConvertStandardSelection is also referenced below.
2674 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2675 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2676 if test -d /usr/include/openmotif; then
2677 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2678 emacs_cv_openmotif=yes
2679 case "$canonical" in
2680 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2681 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2684 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2687 emacs_cv_openmotif=no
2689 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2690 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2691 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2694 Motif version prior to 2.1.
2696 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2697 if test $emacs_cv_motif_version_2_1 = yes; then
2698 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2699 if test x$emacs_cv_openmotif = xyes; then
2700 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2703 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2704 # We put this in CFLAGS temporarily to precede other -I options
2705 # that might be in CFLAGS temporarily.
2706 # We put this in CPPFLAGS where it precedes the other -I options.
2707 OLD_CPPFLAGS=$CPPFLAGS
2709 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2710 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2711 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2713 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2714 if test $emacs_cv_lesstif = yes; then
2715 # Make sure this -I option remains in CPPFLAGS after it is set
2716 # back to REAL_CPPFLAGS.
2717 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2718 # have those other -I options anyway. Ultimately, having this
2719 # directory ultimately in CPPFLAGS will be enough.
2720 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2721 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2724 CPPFLAGS=$OLD_CPPFLAGS
2727 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2728 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2731 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2732 dnl using Motif or Xaw3d is available, and unless
2733 dnl --with-toolkit-scroll-bars=no was specified.
2735 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2736 [Define to 1 if we should use toolkit scroll bars.])dnl
2737 USE_TOOLKIT_SCROLL_BARS=no
2738 if test "${with_toolkit_scroll_bars}" != "no"; then
2739 if test "${USE_X_TOOLKIT}" != "none"; then
2740 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2741 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2743 USE_TOOLKIT_SCROLL_BARS=yes
2744 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2745 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2746 USE_TOOLKIT_SCROLL_BARS=yes
2748 elif test "${HAVE_GTK}" = "yes"; then
2749 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2750 USE_TOOLKIT_SCROLL_BARS=yes
2751 elif test "${HAVE_NS}" = "yes"; then
2752 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2753 USE_TOOLKIT_SCROLL_BARS=yes
2754 elif test "${HAVE_W32}" = "yes"; then
2755 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2756 USE_TOOLKIT_SCROLL_BARS=yes
2760 dnl See if XIM is available.
2761 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2762 #include <X11/Xlib.h>
2763 #include <X11/Xresource.h>]],
2764 [[XIMProc callback;]])],
2766 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2769 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2771 if test "${with_xim}" != "no"; then
2772 AC_DEFINE(USE_XIM, 1,
2773 [Define to 1 if we should use XIM, if it is available.])
2777 if test "${HAVE_XIM}" != "no"; then
2779 if test "$GCC" = yes; then
2780 CFLAGS="$CFLAGS --pedantic-errors"
2782 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2783 #include <X11/Xlib.h>
2784 #include <X11/Xresource.h>]],
2790 XPointer *client_data;
2792 /* If we're not using GCC, it's probably not XFree86, and this is
2793 probably right, but we can't use something like --pedantic-errors. */
2794 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2795 char*, XIMProc, XPointer*);
2797 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2799 [emacs_cv_arg6_star=yes])
2800 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2801 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2802 either XPointer or XPointer*.])dnl
2803 if test "$emacs_cv_arg6_star" = yes; then
2804 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2806 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2811 ### Start of font-backend (under any platform) section.
2812 # (nothing here yet -- this is a placeholder)
2813 ### End of font-backend (under any platform) section.
2815 ### Start of font-backend (under X11) section.
2816 if test "${HAVE_X11}" = "yes"; then
2817 EMACS_CHECK_MODULES([FONTCONFIG], [fontconfig >= 2.2.0],
2818 [HAVE_FC=yes], [HAVE_FC=no])
2820 ## Use -lXft if available, unless `--with-xft=no'.
2822 if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2825 if test "x${with_xft}" != "xno"; then
2827 EMACS_CHECK_MODULES([XFT], [xft >= 0.13.0], [], [HAVE_XFT=no])
2828 ## Because xftfont.c uses XRenderQueryExtension, we also
2829 ## need to link to -lXrender.
2831 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2832 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2833 OLD_CPPFLAGS="$CPPFLAGS"
2834 OLD_CFLAGS="$CFLAGS"
2836 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2837 CFLAGS="$CFLAGS $XFT_CFLAGS"
2838 XFT_LIBS="-lXrender $XFT_LIBS"
2839 LIBS="$XFT_LIBS $LIBS"
2840 AC_CHECK_HEADER(X11/Xft/Xft.h,
2841 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
2842 [[#include <X11/X.h>]])
2844 if test "${HAVE_XFT}" = "yes"; then
2845 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2847 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2848 fi # "${HAVE_XFT}" = "yes"
2849 CPPFLAGS=$OLD_CPPFLAGS
2852 fi # "$HAVE_XFT" != no
2853 fi # "x${with_xft}" != "xno"
2855 ## We used to allow building with FreeType and without Xft.
2856 ## However, the ftx font backend driver is not in good shape.
2857 if test "$HAVE_XFT" != "yes"; then
2858 dnl For the "Does Emacs use" message at the end.
2862 dnl Strict linkers fail with
2863 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2864 dnl if -lfreetype is not specified.
2865 dnl The following is needed to set FREETYPE_LIBS.
2866 EMACS_CHECK_MODULES([FREETYPE], [freetype2])
2868 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2872 if test "${HAVE_FREETYPE}" = "yes"; then
2873 AC_DEFINE(HAVE_FREETYPE, 1,
2874 [Define to 1 if using the freetype and fontconfig libraries.])
2875 if test "${with_libotf}" != "no"; then
2876 EMACS_CHECK_MODULES([LIBOTF], [libotf])
2877 if test "$HAVE_LIBOTF" = "yes"; then
2878 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2879 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2880 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2881 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2882 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2883 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2884 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2888 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2889 dnl Does the new font backend require it, or can it work without it?
2893 if test "${HAVE_LIBOTF}" = yes; then
2894 if test "${with_m17n_flt}" != "no"; then
2895 EMACS_CHECK_MODULES([M17N_FLT], [m17n-flt])
2896 if test "$HAVE_M17N_FLT" = "yes"; then
2897 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2908 ### End of font-backend (under X11) section.
2910 AC_SUBST(FREETYPE_CFLAGS)
2911 AC_SUBST(FREETYPE_LIBS)
2912 AC_SUBST(FONTCONFIG_CFLAGS)
2913 AC_SUBST(FONTCONFIG_LIBS)
2914 AC_SUBST(LIBOTF_CFLAGS)
2915 AC_SUBST(LIBOTF_LIBS)
2916 AC_SUBST(M17N_FLT_CFLAGS)
2917 AC_SUBST(M17N_FLT_LIBS)
2919 ### Use -lXpm if available, unless `--with-xpm=no'.
2920 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
2923 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
2924 if test "${with_xpm}" != "no"; then
2925 SAVE_CPPFLAGS="$CPPFLAGS"
2926 SAVE_LDFLAGS="$LDFLAGS"
2927 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
2928 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
2929 AC_CHECK_HEADER(X11/xpm.h,
2930 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
2931 if test "${HAVE_XPM}" = "yes"; then
2932 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2933 AC_EGREP_CPP(no_return_alloc_pixels,
2934 [#include "X11/xpm.h"
2935 #ifndef XpmReturnAllocPixels
2936 no_return_alloc_pixels
2938 ], HAVE_XPM=no, HAVE_XPM=yes)
2940 if test "${HAVE_XPM}" = "yes"; then
2941 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
2945 CPPFLAGS="$SAVE_CPPFLAGS"
2946 LDFLAGS="$SAVE_LDFLAGS"
2951 if test "${HAVE_XPM}" = "yes"; then
2952 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2957 if test "${HAVE_X11}" = "yes"; then
2958 if test "${with_xpm}" != "no"; then
2959 AC_CHECK_HEADER(X11/xpm.h,
2960 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2961 if test "${HAVE_XPM}" = "yes"; then
2962 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2963 AC_EGREP_CPP(no_return_alloc_pixels,
2964 [#include "X11/xpm.h"
2965 #ifndef XpmReturnAllocPixels
2966 no_return_alloc_pixels
2968 ], HAVE_XPM=no, HAVE_XPM=yes)
2970 if test "${HAVE_XPM}" = "yes"; then
2978 if test "${HAVE_XPM}" = "yes"; then
2979 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2984 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
2985 ### slightly different requirements wrt image libraries (it doesn't
2986 ### use -lXpm because it loads the xpm shared library dynamically at
2988 if test "${opsys}" = "mingw32"; then
2989 if test "${with_xpm}" != "no"; then
2990 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
2994 if test "${HAVE_XPM}" = "yes"; then
2995 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3001 ### Use -ljpeg if available, unless `--with-jpeg=no'.
3002 ### mingw32 doesn't use -ljpeg, since it loads the library dynamically.
3005 if test "${opsys}" = "mingw32"; then
3006 if test "${with_jpeg}" != "no"; then
3007 dnl Checking for jpeglib.h can lose because of a redefinition of
3009 AC_CHECK_HEADER(jerror.h, HAVE_JPEG=yes, HAVE_JPEG=no)
3011 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
3012 if test "${HAVE_JPEG}" = "yes"; then
3013 AC_DEFINE(HAVE_JPEG)
3014 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
3015 [#include <jpeglib.h>
3016 version=JPEG_LIB_VERSION
3018 [AC_DEFINE(HAVE_JPEG)],
3019 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
3022 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3023 if test "${with_jpeg}" != "no"; then
3024 dnl Checking for jpeglib.h can lose because of a redefinition of
3026 AC_CHECK_HEADER(jerror.h,
3027 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
3030 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
3031 if test "${HAVE_JPEG}" = "yes"; then
3032 AC_DEFINE(HAVE_JPEG)
3033 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
3034 [#include <jpeglib.h>
3035 version=JPEG_LIB_VERSION
3037 [AC_DEFINE(HAVE_JPEG)],
3038 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
3041 if test "${HAVE_JPEG}" = "yes"; then
3049 if test "${with_zlib}" != "no"; then
3051 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
3053 case $ac_cv_search_inflateEnd in
3054 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3057 if test "${HAVE_ZLIB}" = "yes"; then
3058 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3059 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3060 if test "${opsys}" = "mingw32"; then
3066 ### Use -lpng if available, unless `--with-png=no'.
3070 if test "${NS_IMPL_COCOA}" = yes; then
3072 elif test "${with_png}" != no; then
3073 # mingw32 loads the library dynamically.
3074 if test "$opsys" = mingw32; then
3075 AC_CHECK_HEADER([png.h], [HAVE_PNG=yes])
3076 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3077 AC_MSG_CHECKING([for png])
3078 png_cflags=`(libpng-config --cflags) 2>&AS_MESSAGE_LOG_FD` &&
3079 png_libs=`(libpng-config --libs) 2>&AS_MESSAGE_LOG_FD` || {
3080 # libpng-config does not work; configure by hand.
3081 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
3082 # in /usr/include/libpng.
3083 if test -r /usr/include/libpng/png.h &&
3084 test ! -r /usr/include/png.h; then
3085 png_cflags=-I/usr/include/libpng
3093 CFLAGS="$CFLAGS $png_cflags"
3094 LIBS="$png_libs -lz -lm $LIBS"
3096 [AC_LANG_PROGRAM([[#include <png.h>]],
3097 [[return !png_get_channels (0, 0);]])],
3099 PNG_CFLAGS=`AS_ECHO(["$png_cflags"]) | sed -e "$edit_cflags"`
3101 # $LIBPNG requires explicit -lz in some cases.
3102 # We don't know what those cases are, exactly, so play it safe and
3103 # append -lz to any nonempty $LIBPNG, unless we're already using LIBZ.
3104 if test -n "$LIBPNG" && test -z "$LIBZ"; then
3105 LIBPNG="$LIBPNG -lz"
3109 AC_MSG_RESULT([$HAVE_PNG])
3112 if test $HAVE_PNG = yes; then
3113 AC_DEFINE([HAVE_PNG], [1], [Define to 1 if you have the png library.])
3116 CFLAGS="$CFLAGS $PNG_CFLAGS"
3117 AC_CHECK_DECL([png_longjmp],
3119 [AC_DEFINE([PNG_DEPSTRUCT], [],
3120 [Define to empty to suppress deprecation warnings when building
3121 with --enable-gcc-warnings and with libpng versions before 1.5,
3122 which lack png_longjmp.])],
3128 AC_SUBST(PNG_CFLAGS)
3130 ### Use -ltiff if available, unless `--with-tiff=no'.
3131 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3134 if test "${opsys}" = "mingw32"; then
3135 if test "${with_tiff}" != "no"; then
3136 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3138 if test "${HAVE_TIFF}" = "yes"; then
3139 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3141 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3142 if test "${with_tiff}" != "no"; then
3143 AC_CHECK_HEADER(tiffio.h,
3145 # At least one tiff package requires the jpeg library.
3146 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3147 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3150 if test "${HAVE_TIFF}" = "yes"; then
3151 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3152 dnl FIXME -lz -lm, as per libpng?
3158 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
3159 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3162 if test "${opsys}" = "mingw32"; then
3163 if test "${with_gif}" != "no"; then
3164 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3166 if test "${HAVE_GIF}" = "yes"; then
3167 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3169 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3170 || test "${HAVE_W32}" = "yes"; then
3171 AC_CHECK_HEADER(gif_lib.h,
3172 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3173 # Earlier versions can crash Emacs, but version 5.0 removes EGifPutExtensionLast.
3174 [AC_CHECK_LIB(gif, GifMakeMapObject, HAVE_GIF=yes,
3175 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])])
3177 if test "$HAVE_GIF" = yes; then
3179 elif test "$HAVE_GIF" = maybe; then
3180 # If gif_lib.h but no libgif, try libungif.
3181 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3182 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3185 if test "${HAVE_GIF}" = "yes"; then
3186 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3191 dnl Check for required libraries.
3192 if test "${HAVE_X11}" = "yes"; then
3195 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3196 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3197 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3198 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3199 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3200 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3201 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3202 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3203 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3204 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3206 if test "X${MISSING}" != X; then
3207 AC_MSG_ERROR([The following required libraries were not found:
3209 Maybe some development libraries/packages are missing?
3210 If you don't want to link with them give
3212 as options to configure])
3216 ### Use -lgpm if available, unless `--with-gpm=no'.
3219 if test "${with_gpm}" != "no"; then
3220 AC_CHECK_HEADER(gpm.h,
3221 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3223 if test "${HAVE_GPM}" = "yes"; then
3224 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3230 dnl Check for malloc/malloc.h on darwin
3231 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3234 ### Use NeXTstep API to implement GUI.
3235 if test "${HAVE_NS}" = "yes"; then
3236 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
3237 if test "${NS_IMPL_COCOA}" = "yes"; then
3238 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
3240 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3241 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3242 # See also .m.o rule in Makefile.in */
3243 # FIXME: are all these flags really needed? Document here why. */
3244 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3245 ## Extra CFLAGS applied to src/*.m files.
3246 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3251 ### Use session management (-lSM -lICE) if available
3254 if test "${HAVE_X11}" = "yes"; then
3255 AC_CHECK_HEADER(X11/SM/SMlib.h,
3256 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3258 if test "${HAVE_X_SM}" = "yes"; then
3259 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3265 ### Use XRandr (-lXrandr) if available
3267 if test "${HAVE_X11}" = "yes"; then
3268 XRANDR_REQUIRED=1.2.2
3269 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3270 EMACS_CHECK_MODULES([XRANDR], [$XRANDR_MODULES])
3271 if test $HAVE_XRANDR = no; then
3272 # Test old way in case pkg-config doesn't have it (older machines).
3273 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3274 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)])
3275 if test $HAVE_XRANDR = yes; then
3276 XRANDR_LIBS=-lXrandr
3279 if test $HAVE_XRANDR = yes; then
3280 SAVE_CFLAGS="$CFLAGS"
3282 CFLAGS="$XRANDR_CFLAGS $CFLAGS"
3283 LIBS="$XRANDR_LIBS $LIBS"
3284 AC_CHECK_FUNCS(XRRGetOutputPrimary XRRGetScreenResourcesCurrent)
3285 CFLAGS="$SAVE_CFLAGS"
3288 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3291 AC_SUBST(XRANDR_CFLAGS)
3292 AC_SUBST(XRANDR_LIBS)
3294 ### Use Xinerama (-lXinerama) if available
3296 if test "${HAVE_X11}" = "yes"; then
3297 XINERAMA_REQUIRED=1.0.2
3298 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3299 EMACS_CHECK_MODULES([XINERAMA], [$XINERAMA_MODULES])
3300 if test $HAVE_XINERAMA = no; then
3301 # Test old way in case pkg-config doesn't have it (older machines).
3302 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3303 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3304 if test $HAVE_XINERAMA = yes; then
3305 XINERAMA_LIBS=-lXinerama
3308 if test $HAVE_XINERAMA = yes; then
3309 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3312 AC_SUBST(XINERAMA_CFLAGS)
3313 AC_SUBST(XINERAMA_LIBS)
3315 ### Use Xfixes (-lXfixes) if available
3317 if test "${HAVE_X11}" = "yes"; then
3318 XFIXES_REQUIRED=4.0.0
3319 XFIXES_MODULES="xfixes >= $XFIXES_REQUIRED"
3320 EMACS_CHECK_MODULES([XFIXES], [$XFIXES_MODULES])
3321 if test $HAVE_XFIXES = no; then
3322 # Test old way in case pkg-config doesn't have it (older machines).
3323 AC_CHECK_HEADER(X11/extensions/Xfixes.h,
3324 [AC_CHECK_LIB(Xfixes, XFixesHideCursor, HAVE_XFIXES=yes)])
3325 if test $HAVE_XFIXES = yes; then
3326 XFIXES_LIBS=-lXfixes
3329 if test $HAVE_XFIXES = yes; then
3330 AC_DEFINE(HAVE_XFIXES, 1, [Define to 1 if you have the Xfixes extension.])
3333 AC_SUBST(XFIXES_CFLAGS)
3334 AC_SUBST(XFIXES_LIBS)
3336 ### Use libxml (-lxml2) if available
3337 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3339 if test "${with_xml2}" != "no"; then
3340 ### I'm not sure what the version number should be, so I just guessed.
3341 EMACS_CHECK_MODULES([LIBXML2], [libxml-2.0 > 2.6.17])
3342 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3343 if test "${HAVE_LIBXML2}" != "yes" -a "$opsys" = "darwin"; then
3344 SAVE_CPPFLAGS="$CPPFLAGS"
3345 CPPFLAGS="$CPPFLAGS -I$xcsdkdir/usr/include/libxml2"
3346 AC_CHECK_HEADER(libxml/HTMLparser.h,
3347 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3348 [#include <libxml/HTMLparser.h>])])
3349 CPPFLAGS="$SAVE_CPPFLAGS"
3350 if test "${HAVE_LIBXML2}" = "yes"; then
3351 LIBXML2_CFLAGS="-I'$xcsdkdir/usr/include/libxml2'"
3352 LIBXML2_LIBS="-lxml2"
3355 if test "${HAVE_LIBXML2}" = "yes"; then
3356 if test "${opsys}" != "mingw32"; then
3357 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no
3362 if test "${HAVE_LIBXML2}" = "yes"; then
3363 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3370 AC_SUBST(LIBXML2_LIBS)
3371 AC_SUBST(LIBXML2_CFLAGS)
3373 # If netdb.h doesn't declare h_errno, we must declare it by hand.
3374 # On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
3375 if test "${opsys}" = "mingw32"; then
3376 emacs_cv_netdb_declares_h_errno=yes
3378 AC_CACHE_CHECK(whether netdb declares h_errno,
3379 emacs_cv_netdb_declares_h_errno,
3380 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
3381 [[return h_errno;]])],
3382 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
3383 if test $emacs_cv_netdb_declares_h_errno = yes; then
3384 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
3387 # Check for mail-locking functions in a "mail" library. Probably this should
3388 # have the same check as for liblockfile below.
3389 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
3390 if test $have_mail = yes; then
3392 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
3395 LIBS="$LIBS_MAIL $LIBS"
3396 AC_CHECK_FUNCS(touchlock)
3401 dnl Debian, at least:
3402 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
3403 if test $have_lockfile = yes; then
3404 LIBS_MAIL=-llockfile
3405 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
3407 # If we have the shared liblockfile, assume we must use it for mail
3408 # locking (e.g. Debian). If we couldn't link against liblockfile
3409 # (no liblockfile.a installed), ensure that we don't need to.
3410 dnl This works for files generally, not just executables.
3411 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3412 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
3413 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
3414 if test $ac_cv_prog_liblockfile = yes; then
3415 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3416 This probably means that movemail could lose mail.
3417 There may be a `development' package to install containing liblockfile.])
3420 AC_CHECK_HEADERS_ONCE(maillock.h)
3423 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3424 ## interlock access to the mail spool. The alternative is a lock file named
3425 ## /usr/spool/mail/$USER.lock.
3428 aix4-2) mail_lock="lockf" ;;
3430 gnu|freebsd|dragonfly|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
3432 ## On GNU/Linux systems, both methods are used by various mail programs.
3433 ## I assume most people are using newer mailers that have heard of flock.
3434 ## Change this if you need to.
3435 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
3436 ## configure gets the right answers, and that means *NOT* using flock.
3437 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3438 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
3439 ## Debian maintainer hasn't provided a clean fix for Emacs.
3440 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
3441 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3442 ## correct logic. -- fx
3443 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3444 ## liblockfile is a Free Software replacement for libmail, used on
3445 ## Debian systems and elsewhere. -rfr.
3448 if test $have_mail = yes || test $have_lockfile = yes; then
3449 test $ac_cv_header_maillock_h = yes && mail_lock=no
3454 mail_lock="none-needed" ;;
3458 case "$mail_lock" in
3459 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3461 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3465 *) BLESSMAIL_TARGET="need-blessmail" ;;
3467 AC_SUBST(BLESSMAIL_TARGET)
3470 LIBS="$LIB_MATH $LIBS"
3471 AC_CHECK_FUNCS(accept4 gethostname \
3472 getrusage get_current_dir_name \
3473 lrand48 random rint \
3474 select getpagesize setlocale \
3475 getrlimit setrlimit shutdown getaddrinfo \
3476 strsignal setitimer \
3477 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
3479 getpwent endpwent getgrent endgrent \
3480 cfmakeraw cfsetspeed copysign __executable_start log2)
3483 dnl No need to check for aligned_alloc and posix_memalign if using
3484 dnl gmalloc.o, as it supplies them. Don't use these functions on
3485 dnl Darwin as they are incompatible with unexmacosx.c.
3486 if test -z "$GMALLOC_OBJ" && test "$opsys" != darwin; then
3487 AC_CHECK_FUNCS([aligned_alloc posix_memalign], [break])
3490 dnl Cannot use AC_CHECK_FUNCS
3491 AC_CACHE_CHECK([for __builtin_unwind_init],
3492 emacs_cv_func___builtin_unwind_init,
3493 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3494 emacs_cv_func___builtin_unwind_init=yes,
3495 emacs_cv_func___builtin_unwind_init=no)])
3496 if test $emacs_cv_func___builtin_unwind_init = yes; then
3497 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3498 [Define to 1 if you have the `__builtin_unwind_init' function.])
3501 AC_CHECK_HEADERS_ONCE(sys/un.h)
3506 AC_CHECK_FUNCS(grantpt)
3508 # PTY-related GNU extensions.
3509 AC_CHECK_FUNCS(getpt posix_openpt)
3511 # Check this now, so that we will NOT find the above functions in ncurses.
3512 # That is because we have not set up to link ncurses in lib-src.
3513 # It's better to believe a function is not available
3514 # than to expect to find it in ncurses.
3515 # Also we need tputs and friends to be able to build at all.
3516 AC_MSG_CHECKING([for library containing tputs])
3517 # Run a test program that contains a call to tputs, a call that is
3518 # never executed. This tests whether a pre-'main' dynamic linker
3519 # works with the library. It's too much trouble to actually call
3520 # tputs in the test program, due to portability hassles. When
3521 # cross-compiling, assume the test program will run if it links.
3522 AC_DEFUN([tputs_link_source], [
3524 [[extern void tputs (const char *, int, int (*)(int));
3525 int main (int argc, char **argv)
3528 tputs (argv[0], 0, 0);
3532 if test "${opsys}" = "mingw32"; then
3535 # Maybe curses should be tried earlier?
3536 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3537 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3539 if test -z "$tputs_library"; then
3543 LIBS_TERMCAP=-l$tputs_library
3545 LIBS="$LIBS_TERMCAP $LIBS"
3547 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3548 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3550 if test "X$msg" != Xno; then
3555 AC_MSG_RESULT([$msg])
3556 if test "X$msg" = Xno; then
3557 AC_MSG_ERROR([The required function `tputs' was not found in any library.
3558 The following libraries were tried (in order):
3559 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3560 Please try installing whichever of these libraries is most appropriate
3561 for your system, together with its header files.
3562 For example, a libncurses-dev(el) or similar package.])
3565 ## Use termcap instead of terminfo?
3566 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3568 ## FIXME? In the cases below where we unconditionally set
3569 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3570 ## if that was found above to have tputs.
3571 ## Should we use the gnu* logic everywhere?
3573 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3574 ## The ncurses library has been moved out of the System framework in
3575 ## Mac OS X 10.2. So if configure detects it, set the command-line
3576 ## option to use it.
3577 darwin) LIBS_TERMCAP="-lncurses" ;;
3579 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3582 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3583 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3584 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3585 [[#if __FreeBSD_version < 400000
3588 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3590 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3592 if test $emacs_cv_freebsd_terminfo = yes; then
3593 LIBS_TERMCAP="-lncurses"
3596 LIBS_TERMCAP="-ltermcap"
3606 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3608 LIBS_TERMCAP="-ltermcap"
3612 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
3614 ## hpux: Make sure we get select from libc rather than from libcurses
3615 ## because libcurses on HPUX 10.10 has a broken version of select.
3616 ## We used to use -lc -lcurses, but this may be cleaner.
3617 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3618 # set that way, now it uses the default). Isn't this a contradiction?
3619 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3623 TERMCAP_OBJ=tparam.o
3624 if test $TERMINFO = yes; then
3625 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3626 TERMCAP_OBJ=terminfo.o
3628 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
3629 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
3631 AC_SUBST(LIBS_TERMCAP)
3632 AC_SUBST(TERMCAP_OBJ)
3635 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3636 # On Darwin, res_init appears not to be useful: see bug#562 and
3637 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3640 if test $opsys != darwin; then
3642 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3643 #include <arpa/nameser.h>
3644 #include <resolv.h>]],
3645 [[return res_init();]])],
3646 have_res_init=yes, have_res_init=no)
3647 if test "$have_res_init" = no; then
3649 LIBS="$LIBS -lresolv"
3650 AC_MSG_CHECKING(for res_init with -lresolv)
3651 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3652 #include <arpa/nameser.h>
3653 #include <resolv.h>]],
3654 [[return res_init();]])],
3655 have_res_init=yes, have_res_init=no)
3656 AC_MSG_RESULT($have_res_init)
3657 if test "$have_res_init" = yes ; then
3663 if test "$have_res_init" = yes; then
3664 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3668 # Do we need the Hesiod library to provide the support routines?
3669 dnl FIXME? Should we be skipping this on Darwin too?
3671 if test "$with_hesiod" != no ; then
3672 # Don't set $LIBS here -- see comments above. FIXME which comments?
3673 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3674 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3675 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3676 if test "$resolv" = yes ; then
3681 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3682 hesiod=yes, :, $RESOLVLIB)])
3684 if test x"$hesiod" = xyes; then
3690 # Do we need libresolv (due to res_init or Hesiod)?
3691 if test "$resolv" = yes && test $opsys != darwin; then
3698 # These tell us which Kerberos-related libraries to use.
3705 if test "${with_kerberos}" != no; then
3707 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3708 if test $have_com_err = yes; then
3709 COM_ERRLIB=-lcom_err
3710 LIBS="$COM_ERRLIB $LIBS"
3712 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3713 if test $have_crypto = yes; then
3715 LIBS="$CRYPTOLIB $LIBS"
3717 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3718 if test $have_k5crypto = yes; then
3719 CRYPTOLIB=-lk5crypto
3720 LIBS="$CRYPTOLIB $LIBS"
3722 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3723 if test $have_krb5=yes; then
3725 LIBS="$KRB5LIB $LIBS"
3727 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3728 if test "${with_kerberos5}" = no; then
3729 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3730 if test $have_des425 = yes; then
3732 LIBS="$DESLIB $LIBS"
3734 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3735 if test $have_des = yes; then
3737 LIBS="$DESLIB $LIBS"
3740 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3741 if test $have_krb4 = yes; then
3743 LIBS="$KRB4LIB $LIBS"
3745 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3746 if test $have_krb = yes; then
3748 LIBS="$KRB4LIB $LIBS"
3753 if test "${with_kerberos5}" != no; then
3754 AC_CHECK_HEADERS(krb5.h,
3755 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3756 [#include <krb5.h>])])
3758 AC_CHECK_HEADERS(krb.h,,
3759 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3760 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3762 AC_CHECK_HEADERS(com_err.h)
3766 AC_SUBST(COM_ERRLIB)
3772 AC_CHECK_HEADERS(valgrind/valgrind.h)
3774 AC_CHECK_FUNCS_ONCE(tzset)
3775 AC_MSG_CHECKING(whether localtime caches TZ)
3776 AC_CACHE_VAL(emacs_cv_localtime_cache,
3777 [if test x$ac_cv_func_tzset = xyes; then
3778 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3779 char TZ_GMT0[] = "TZ=GMT0";
3780 char TZ_PST8[] = "TZ=PST8";
3783 time_t now = time ((time_t *) 0);
3784 int hour_GMT0, hour_unset;
3785 if (putenv (TZ_GMT0) != 0)
3787 hour_GMT0 = localtime (&now)->tm_hour;
3789 hour_unset = localtime (&now)->tm_hour;
3790 if (putenv (TZ_PST8) != 0)
3792 if (localtime (&now)->tm_hour == hour_GMT0)
3795 if (localtime (&now)->tm_hour != hour_unset)
3798 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3799 [# If we have tzset, assume the worst when cross-compiling.
3800 emacs_cv_localtime_cache=yes])
3802 # If we lack tzset, report that localtime does not cache TZ,
3803 # since we can't invalidate the cache if we don't have tzset.
3804 emacs_cv_localtime_cache=no
3806 AC_MSG_RESULT($emacs_cv_localtime_cache)
3807 if test $emacs_cv_localtime_cache = yes; then
3808 AC_DEFINE(LOCALTIME_CACHE, 1,
3809 [Define to 1 if localtime caches TZ.])
3813 AC_CHECK_FUNC(socket, , ok_so_far=no)
3814 if test $ok_so_far = yes; then
3815 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3817 if test $ok_so_far = yes; then
3818 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3820 if test $ok_so_far = yes; then
3821 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3822 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3823 [Define to 1 if you have inet sockets.])
3826 dnl Check for a Solaris 2.4 vfork bug that Autoconf misses (through 2.69).
3827 dnl This can be removed once we assume Autoconf 2.70.
3829 *-solaris2.4 | *-solaris2.4.*)
3830 dnl Disable the Autoconf-generated vfork test.
3831 : ${ac_cv_func_vfork_works=no};;
3836 AC_CHECK_FUNCS(snprintf)
3838 dnl Check for glib. This differs from other library checks in that
3839 dnl Emacs need not link to glib unless some other library is already
3840 dnl linking to glib. Although glib provides no facilities that Emacs
3841 dnl needs for its own purposes, when glib is present Emacs needs to
3842 dnl use primitives like g_main_context_query to avoid clashing with
3843 dnl glib at a low level.
3845 dnl Check this late, since it depends on $GTK_CFLAGS etc.
3849 CFLAGS="$CFLAGS $GTK_CFLAGS $RSVG_CFLAGS $DBUS_CFLAGS $SETTINGS_CFLAGS"
3850 LIBS="$LIBS $GTK_LIBS $RSVG_LIBS $DBUS_LIBS $SETTINGS_LIBS"
3851 CFLAGS="$CFLAGS $GFILENOTIFY_CFLAGS"
3852 LIBS="$LIBS $GFILENOTIFY_LIBS"
3853 AC_MSG_CHECKING([whether GLib is linked in])
3854 AC_LINK_IFELSE([AC_LANG_PROGRAM(
3857 [[g_print ("Hello world");]])],
3860 AC_MSG_RESULT([$links_glib])
3861 if test "${links_glib}" = "yes"; then
3862 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
3863 if test "$HAVE_NS" = no;then
3871 dnl Adapted from Haible's version.
3872 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3873 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3874 [[char* cs = nl_langinfo(CODESET);]])],
3875 emacs_cv_langinfo_codeset=yes,
3876 emacs_cv_langinfo_codeset=no)
3878 if test $emacs_cv_langinfo_codeset = yes; then
3879 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3880 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3885 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3886 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3887 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3888 if test "$emacs_cv_c_restrict_arr" = yes; then
3889 AC_DEFINE(__restrict_arr, __restrict,
3890 [Define to compiler's equivalent of C99 restrict keyword in array
3891 declarations. Define as empty for no equivalent.])
3894 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3895 dnl how the tty code is related to POSIX and/or other versions of termios.
3896 dnl The following looks like a useful start.
3898 dnl AC_SYS_POSIX_TERMIOS
3899 dnl if test $ac_cv_sys_posix_termios = yes; then
3900 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3901 dnl and macros for terminal control.])
3902 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3905 dnl Turned on June 1996 supposing nobody will mind it.
3906 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
3907 if test "${opsys}" != "mingw32"; then
3908 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3909 in the full name stands for the login id.])
3912 dnl Everybody supports this, except MS.
3913 dnl Seems like the kind of thing we should be testing for, though.
3914 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3915 if test "${opsys}" != "mingw32"; then
3916 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3919 dnl Everybody supports this, except MS-DOS.
3920 dnl Seems like the kind of thing we should be testing for, though.
3921 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3922 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3923 4.2-compatible sockets.])
3925 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3927 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
3928 a null file, or a data sink.])
3929 if test "${opsys}" = "mingw32"; then
3930 AC_DEFINE(NULL_DEVICE, ["NUL:"])
3932 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
3935 if test "${opsys}" = "mingw32"; then
3940 AC_DEFINE_UNQUOTED(SEPCHAR, ['$SEPCHAR'], [Character that separates PATH elements.])
3941 dnl This is for MinGW, and is used in test/automated/Makefile.in.
3942 dnl The MSYS Bash has heuristics for replacing ':' with ';' when it
3943 dnl decides that a command-line argument to be passed to a MinGW program
3944 dnl is a PATH-style list of directories. But that heuristics plays it
3945 dnl safe, and only does the replacement when it is _absolutely_ sure it
3946 dnl sees a colon-separated list of file names; e.g. ":." is left alone,
3947 dnl which breaks in-tree builds. So we do this manually instead.
3948 dnl Note that we cannot rely on PATH_SEPARATOR, as that one will always
3949 dnl be computed as ':' in MSYS Bash.
3952 dnl Everybody supports this, except MS-DOS.
3953 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3955 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3958 AC_DEFINE(DIRECTORY_SEP, ['/'],
3959 [Character that separates directories in a file name.])
3961 if test "${opsys}" = "mingw32"; then
3962 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
3963 [Returns true if character is a device separator.])
3965 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
3966 [Returns true if character is a directory separator.])
3968 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
3969 [Returns true if character is any form of separator.])
3971 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
3972 [Returns true if character is a device separator.])
3974 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
3975 [Returns true if character is a directory separator.])
3977 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
3978 [Returns true if character is any form of separator.])
3981 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
3985 dnl Unfortunately without libXmu we cannot support EditRes.
3986 if test "x$ac_cv_search_XmuConvertStandardSelection" = xno; then
3987 AC_DEFINE(NO_EDITRES, 1)
3992 dnl Assar Westerlund <assar@sics.se> says this is necessary for
3993 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
3994 AC_DEFINE(NO_EDITRES, 1)
4000 irix6-5 | sol2* | unixware )
4001 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
4002 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
4003 dnl need the constant to dimension an array. So wire in the appropriate
4005 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
4009 emacs_broken_SIGIO=no
4012 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
4013 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
4014 hpux* | irix6-5 | openbsd | sol2* | unixware )
4015 emacs_broken_SIGIO=yes
4019 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
4020 dnl the way this system works, libc functions that return malloced
4021 dnl memory use the libc malloc implementation. Calling xfree or
4022 dnl xrealloc on the results of such functions results in a crash.
4024 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
4025 dnl but that does not currently work on this system.
4027 dnl It is possible to completely override the malloc implementation on
4028 dnl AIX, but that involves putting the malloc functions in a shared
4029 dnl library and setting the MALLOCTYPE environment variable to point to
4030 dnl that shared library.
4032 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
4033 dnl to avoid a crash just use the Emacs implementation for that function.
4035 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
4036 dnl of this file, so that we do not check for get_current_dir_name
4037 dnl on AIX. But that might be fragile if something else ends
4038 dnl up testing for get_current_dir_name as a dependency.
4039 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
4040 get_current_dir_name should not be used.])
4044 dnl Circumvent a bug in FreeBSD. In the following sequence of
4045 dnl writes/reads on a PTY, read(2) returns bogus data:
4047 dnl write(2) 1022 bytes
4048 dnl write(2) 954 bytes, get EAGAIN
4049 dnl read(2) 1024 bytes in process_read_output
4050 dnl read(2) 11 bytes in process_read_output
4052 dnl That is, read(2) returns more bytes than have ever been written
4053 dnl successfully. The 1033 bytes read are the 1022 bytes written
4054 dnl successfully after processing (for example with CRs added if the
4055 dnl terminal is set up that way which it is here). The same bytes will
4056 dnl be seen again in a later read(2), without the CRs.
4057 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
4058 work around an issue when reading from a PTY.])
4064 dnl FIXME Can't we test if this exists (eg /proc/$$)?
4065 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
4070 darwin | dragonfly | freebsd | netbsd | openbsd )
4071 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
4072 close a pty to make it a controlling terminal (it is already a
4073 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
4077 dnl FIXME Surely we can test for this rather than hard-code it.
4079 netbsd | openbsd) sound_device="/dev/audio" ;;
4080 *) sound_device="/dev/dsp" ;;
4084 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
4085 [Name of the default sound device.])
4088 dnl Emacs can read input using SIGIO and buffering characters itself,
4089 dnl or using CBREAK mode and making C-g cause SIGINT.
4090 dnl The choice is controlled by the variable interrupt_input.
4092 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
4094 dnl Emacs uses the presence of the USABLE_SIGIO macro
4095 dnl to indicate whether or not signal-driven I/O is possible. It uses
4096 dnl INTERRUPT_INPUT to decide whether to use it by default.
4098 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
4099 dnl CBREAK mode has two disadvantages
4100 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
4101 dnl I hear that in system V this problem does not exist.
4102 dnl 2) Control-G causes output to be discarded.
4103 dnl I do not know whether this can be fixed in system V.
4105 dnl Another method of doing input is planned but not implemented.
4106 dnl It would have Emacs fork off a separate process
4107 dnl to read the input and send it to the true Emacs process
4110 darwin | gnu-linux | gnu-kfreebsd )
4111 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
4116 dnl If the system's imake configuration file defines `NeedWidePrototypes'
4117 dnl as `NO', we must define NARROWPROTO manually. Such a define is
4118 dnl generated in the Makefile generated by `xmkmf'. If we don't define
4119 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
4120 dnl taking float or double parameters.
4122 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
4123 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
4124 file defines `NeedWidePrototypes' as `NO'.])
4129 dnl Used in process.c, this must be a loop, even if it only runs once.
4130 dnl (Except on SGI; see below. Take that, clarity and consistency!)
4131 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
4132 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
4133 dnl trying suffixes 0-16.
4134 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
4135 first PTY, if PTYs are supported.])
4136 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
4137 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
4138 end of a PTY, if non-standard.])
4139 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
4140 end of a PTY, if non-standard.])
4144 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4145 dnl You allocate a pty by opening /dev/ptc to get the master side.
4146 dnl To get the name of the slave side, you just ttyname() the master side.
4147 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4148 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4152 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4153 dnl multi-line AC_DEFINEs are hard. :(
4154 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)])
4155 AC_DEFINE(PTY_NAME_SPRINTF, [])
4156 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4159 dnl FIXME? Maybe use same as freebsd - see bug#12040.
4161 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4162 dnl Not used, because PTY_ITERATION is defined.
4163 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4164 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
4165 dnl But we don't have to block SIGCHLD because it is blocked in the
4166 dnl implementation of grantpt.
4167 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (false)])
4168 AC_DEFINE(PTY_NAME_SPRINTF, [])
4169 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4173 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4176 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd )
4178 if test "x$ac_cv_func_grantpt" = xyes; then
4179 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4180 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4181 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4182 dnl to prevent sigchld_handler from intercepting the child's death.
4183 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); }])
4184 dnl if HAVE_POSIX_OPENPT
4185 if test "x$ac_cv_func_posix_openpt" = xyes; then
4186 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (false)])
4187 AC_DEFINE(PTY_NAME_SPRINTF, [])
4189 elif test "x$ac_cv_func_getpt" = xyes; then
4190 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4191 AC_DEFINE(PTY_NAME_SPRINTF, [])
4193 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4196 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4201 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4202 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4203 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4207 dnl It looks like this cannot be right, because it is not a loop.
4208 dnl However, process.c actually does this:
4214 dnl which presumably makes it OK, since irix == sgi (?).
4215 dnl FIXME it seems like this special treatment is unnecessary?
4216 dnl Why can't irix use a single-trip loop like eg cygwin?
4217 AC_DEFINE(PTY_ITERATION, [])
4218 dnl Not used, because PTY_ITERATION is defined.
4219 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
4220 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); }])
4221 dnl No need to get the pty name at all.
4222 AC_DEFINE(PTY_NAME_SPRINTF, [])
4223 dnl No need to use sprintf to get the tty name--we get that from _getpty.
4224 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4228 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
4229 dnl from intercepting that death. If any child but grantpt's should die
4230 dnl within, it should be caught after sigrelse(2).
4231 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); }])
4235 dnl Comments are as per sol2*.
4236 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptsname (int), *ptyname; int grantpt_result; sigset_t blocked; sigemptyset (&blocked); sigaddset (&blocked, SIGCHLD); pthread_sigmask (SIG_BLOCK, &blocked, 0); grantpt_result = grantpt (fd); pthread_sigmask (SIG_UNBLOCK, &blocked, 0); if (grantpt_result == -1) 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); }])
4243 dnl This change means that we don't loop through allocate_pty too
4244 dnl many times in the (rare) event of a failure.
4245 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4246 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4247 dnl Push various streams modules onto a PTY channel. Used in process.c.
4248 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.])
4253 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4254 "typing" a signal character on the pty.])
4257 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4258 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
4259 aix4-2 | cygwin | gnu | irix6-5 | dragonfly | freebsd | netbsd | openbsd | darwin )
4260 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4263 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4264 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4265 gnu-linux | gnu-kfreebsd )
4267 AC_MSG_CHECKING([for signals via characters])
4268 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4269 #include <linux/version.h>
4270 #if LINUX_VERSION_CODE < 0x20400
4271 # error "Linux version too old"
4273 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4275 AC_MSG_RESULT([$emacs_signals_via_chars])
4276 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4281 AH_TEMPLATE(TAB3, [Undocumented.])
4284 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4286 gnu | dragonfly | freebsd | netbsd | openbsd )
4287 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4288 AC_DEFINE(TAB3, OXTABS)
4291 gnu-linux | gnu-kfreebsd )
4292 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4296 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4297 [do { extern void *__libc_ia64_register_backing_store_base; __builtin_ia64_flushrs (); mark_memory (__libc_ia64_register_backing_store_base, __builtin_ia64_bsp ());} while (false)],
4298 [Mark a secondary stack, like the register stack on the ia64.]), [])
4302 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4303 run_time_remap; for HPUX.])
4308 dnl This won't be used automatically yet. We also need to know, at least,
4309 dnl that the stack is continuous.
4310 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4311 registers relevant for conservative garbage collection in the jmp_buf.])
4315 dnl Not all the architectures are tested, but there are Debian packages
4316 dnl for SCM and/or Guile on them, so the technique must work. See also
4317 dnl comments in alloc.c concerning setjmp and gcc.
4318 dnl Fixme: it's probably safe to just use the GCC conditional below.
4319 gnu-linux | gnu-kfreebsd )
4320 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4321 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4322 || defined __alpha__ || defined __mips__ || defined __s390__ \
4323 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4324 || defined __ia64__ || defined __sh__
4327 # error "setjmp not known to work on this arch"
4329 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4334 if test x$GCC = xyes; then
4335 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4336 AC_DEFINE(GC_SETJMP_WORKS, 1)
4339 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
4340 dragonfly | freebsd | netbsd | openbsd | irix6-5 | sol2* )
4341 AC_DEFINE(GC_SETJMP_WORKS, 1)
4346 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4347 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4350 [[#include <setjmp.h>
4352 # define _longjmp longjmp
4357 _longjmp (j, 1);]])],
4358 [emacs_cv_func__setjmp=yes],
4359 [emacs_cv_func__setjmp=no])])
4360 if test $emacs_cv_func__setjmp = yes; then
4361 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4363 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4366 [[#include <setjmp.h>
4369 if (! sigsetjmp (j, 1))
4370 siglongjmp (j, 1);]])],
4371 [emacs_cv_func_sigsetjmp=yes],
4372 [emacs_cv_func_sigsetjmp=no])])
4373 if test $emacs_cv_func_sigsetjmp = yes; then
4374 AC_DEFINE([HAVE_SIGSETJMP], 1,
4375 [Define to 1 if sigsetjmp and siglongjmp work.
4376 The value of this symbol is irrelevant if HAVE__SETJMP is defined.])
4382 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4383 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4384 dnl and this is all we need.
4385 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4392 dnl Used in xfaces.c.
4393 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4394 some systems, where it requires time.h.])
4399 dnl Define symbols to identify the version of Unix this is.
4400 dnl Define all the symbols that apply correctly.
4401 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4402 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4403 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4404 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4409 dnl This symbol should be defined on AIX Version 3 ???????
4410 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4412 # error "_AIX not defined"
4414 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4418 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4422 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
4423 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4424 dnl distinguish OS X from pure Darwin.
4425 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4428 gnu-linux | gnu-kfreebsd )
4430 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4435 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4440 AC_DEFINE(USG5_4, [])
4441 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4445 AC_DEFINE(DOS_NT, [])
4446 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4447 if test "x$ac_enable_checking" != "x" ; then
4448 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4454 AC_DEFINE(USG5_4, [])
4455 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4460 AC_DEFINE(USG5_4, [])
4464 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4467 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4468 emacs_cv_usable_FIONREAD=no
4472 emacs_cv_usable_FIONREAD=yes
4477 [AC_LANG_PROGRAM([[#include <sys/types.h>
4478 #include <sys/ioctl.h>
4480 # include <sys/filio.h>
4483 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4484 [emacs_cv_usable_FIONREAD=yes],
4485 [emacs_cv_usable_FIONREAD=no])
4488 if test $emacs_cv_usable_FIONREAD = yes; then
4489 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4491 if test $emacs_broken_SIGIO = no; then
4492 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4494 [AC_LANG_PROGRAM([[#include <fcntl.h>
4497 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4498 [emacs_cv_usable_SIGIO=yes],
4499 [emacs_cv_usable_SIGIO=no])],
4500 [emacs_cv_usable_SIGIO=yes],
4501 [emacs_cv_usable_SIGIO=no])
4502 if test $emacs_cv_usable_SIGIO = yes; then
4503 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4510 dnl Emacs supplies its own malloc, but glib calls posix_memalign,
4511 dnl and on Cygwin prior to version 1.7.24 that becomes the
4512 dnl Cygwin-supplied posix_memalign. As malloc is not the Cygwin
4513 dnl malloc, the Cygwin posix_memalign always returns ENOSYS. A
4514 dnl workaround is to set G_SLICE=always-malloc. This is no longer
4515 dnl needed starting with cygwin-1.7.24, and it is no longer
4516 dnl effective starting with glib-2.36. */
4518 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
4519 G_SLICE environment variable to "always-malloc" at startup.])
4523 dnl It works to open the pty's tty in the parent (Emacs), then
4524 dnl close and reopen it in the child.
4525 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4526 works to open a pty's tty in the parent process, then close and
4527 reopen it in the child.])
4531 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4532 use VSUSP instead of VSWTCH.])
4536 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4541 # Set up the CFLAGS for real compilation, so we can substitute it.
4542 CFLAGS="$REAL_CFLAGS"
4543 CPPFLAGS="$REAL_CPPFLAGS"
4546 ## Hack to detect a buggy GCC version.
4547 if test "x$GCC" = xyes \
4548 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4549 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4550 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4551 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4554 version=$PACKAGE_VERSION
4556 copyright="Copyright (C) 2014 Free Software Foundation, Inc."
4557 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4558 [Short copyright string for this version of Emacs.])
4561 ### Specify what sort of things we'll be editing into Makefile and config.h.
4562 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4564 AC_SUBST(configuration)
4569 AC_SUBST(exec_prefix)
4572 AC_SUBST(sharedstatedir)
4573 AC_SUBST(libexecdir)
4577 AC_SUBST(standardlisppath)
4578 AC_SUBST(locallisppath)
4580 AC_SUBST(x_default_search_path)
4582 AC_SUBST(archlibdir)
4587 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4588 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4589 ## end of LIBX_BASE, but nothing ever set it.
4590 AC_SUBST(LD_SWITCH_X_SITE)
4591 AC_SUBST(C_SWITCH_X_SITE)
4592 AC_SUBST(GNUSTEP_CFLAGS)
4594 ## Used in lwlib/Makefile.in.
4595 AC_SUBST(X_TOOLKIT_TYPE)
4597 AC_SUBST(ns_appbindir)
4598 AC_SUBST(ns_appresdir)
4600 AC_SUBST(GNU_OBJC_CFLAGS)
4601 AC_SUBST(OTHER_FILES)
4603 if test -n "${term_header}"; then
4604 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4605 [Define to the header for the built-in window system.])
4608 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4609 [Define to the canonical Emacs configuration name.])
4610 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4611 [Define to the options passed to configure.])
4612 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4613 define this to include extra configuration information.])
4617 AC_DEFINE(config_opsysfile, <ms-w32.h>, [])
4624 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4625 AC_DEFINE(HAVE_X_WINDOWS, 1,
4626 [Define to 1 if you want to use the X window system.])
4628 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4630 if test "$HAVE_XFT" = "yes"; then
4631 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4632 elif test "$HAVE_FREETYPE" = "yes"; then
4633 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4643 if test "${USE_X_TOOLKIT}" != "none" ; then
4645 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4646 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4647 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4648 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4649 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4653 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4654 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4658 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4659 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4660 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4664 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4665 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4668 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4671 AC_SUBST(WIDGET_OBJ)
4674 case "$USE_X_TOOLKIT" in
4675 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4676 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4677 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4679 AC_SUBST(TOOLKIT_LIBW)
4681 if test "${opsys}" != "mingw32"; then
4682 if test "$USE_X_TOOLKIT" = "none"; then
4683 LIBXT_OTHER="\$(LIBXSM)"
4685 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4688 AC_SUBST(LIBXT_OTHER)
4690 if test "${HAVE_X11}" = "yes" ; then
4691 AC_DEFINE(HAVE_X11, 1,
4692 [Define to 1 if you want to use version 11 of X windows.])
4693 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4697 AC_SUBST(LIBX_OTHER)
4699 if test "$HAVE_GTK" = yes || test "$HAVE_X11" != yes; then
4701 elif test "$USE_X_TOOLKIT" = none; then
4702 LIBXMENU='$(oldXMenudir)/libXMenu11.a'
4704 LIBXMENU='$(lwlibdir)/liblw.a'
4708 if test "${GNU_MALLOC}" = "yes" ; then
4709 AC_DEFINE(GNU_MALLOC, 1,
4710 [Define to 1 if you want to use the GNU memory allocator.])
4714 if test "${REL_ALLOC}" = "yes" ; then
4715 AC_DEFINE(REL_ALLOC, 1,
4716 [Define REL_ALLOC if you want to use the relocating allocator for
4719 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4721 AC_SUBST(RALLOC_OBJ)
4723 if test "$opsys" = "cygwin"; then
4724 CYGWIN_OBJ="sheap.o cygw32.o"
4725 ## Cygwin differs because of its unexec().
4727 POST_ALLOC_OBJ=lastfile.o
4728 elif test "$opsys" = "mingw32"; then
4731 POST_ALLOC_OBJ=lastfile.o
4734 PRE_ALLOC_OBJ=lastfile.o
4737 AC_SUBST(CYGWIN_OBJ)
4738 AC_SUBST(PRE_ALLOC_OBJ)
4739 AC_SUBST(POST_ALLOC_OBJ)
4741 dnl Call this 'FORTIFY_SOUR' so that it sorts before the 'FORTIFY_SOURCE'
4742 dnl verbatim defined above. The tricky name is apropos, as this hack
4743 dnl makes Fortify go sour!
4744 AH_VERBATIM([FORTIFY_SOUR],
4745 [/* Without the following workaround, Emacs runs slowly on OS X 10.8.
4746 The workaround disables some useful run-time checking, so it
4747 should be conditional to the platforms with the performance bug.
4748 Perhaps Apple will fix this some day; also see m4/extern-inline.m4. */
4749 #if defined __APPLE__ && defined __GNUC__
4750 # ifndef _DONT_USE_CTYPE_INLINE_
4751 # define _DONT_USE_CTYPE_INLINE_
4753 # ifndef _FORTIFY_SOURCE
4754 # define _FORTIFY_SOURCE 0
4759 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4760 # it temporarily reverts them to their pre-pkg-config values,
4761 # because gnulib needs to work with both src (which uses the
4762 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4763 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4764 # and it therefore needs to run in an environment where LIBS does not
4765 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4766 # for some package unrelated to lib-src.
4769 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4770 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4771 gl_ASSERT_NO_GNULIB_POSIXCHECK
4772 gl_ASSERT_NO_GNULIB_TESTS
4777 if test "${opsys}" = "mingw32"; then
4778 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I \${abs_top_srcdir}/nt/inc"
4779 # Remove unneeded switches from the value of CC that goes to Makefiles
4780 CC=`echo $CC | sed -e "s,$GCC_TEST_OPTIONS,,"`
4784 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4787 ## The -headerpad option tells ld (see man page) to leave room at the
4788 ## end of the header for adding load commands. Needed for dumping.
4789 ## 0x690 is the total size of 30 segment load commands (at 56
4790 ## each); under Cocoa 31 commands are required.
4791 if test "$HAVE_NS" = "yes"; then
4792 libs_nsgui="-framework AppKit"
4793 if test "$NS_IMPL_COCOA" = "yes"; then
4794 libs_nsgui="$libs_nsgui -framework IOKit"
4801 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4803 ## This is here because src/Makefile.in did some extra fiddling around
4804 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
4805 ## LD_SWITCH_SYSTEM_TEMACS instead,
4806 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4807 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4810 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4811 ## find X at run-time.
4812 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4813 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4814 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4815 ## had different values in configure (in ac_link) and src/Makefile.in.
4816 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4817 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4820 ## MinGW64 does not prepend an underscore to symbols, so we must
4821 ## pass a different -entry switch to linker. FIXME: It is better
4822 ## to make the entry points the same by changing unexw32.c.
4823 case "$canonical" in
4824 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4825 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4829 openbsd) LD_SWITCH_SYSTEM_TEMACS='-nopie' ;;
4831 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4834 if test x$ac_enable_profiling != x ; then
4836 *freebsd | gnu-linux) ;;
4837 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
4841 LD_SWITCH_SYSTEM_TEMACS="$LDFLAGS_NOCOMBRELOC $LD_SWITCH_SYSTEM_TEMACS"
4843 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4845 ## MinGW-specific post-link processing of temacs.
4846 TEMACS_POST_LINK=":"
4849 if test "${opsys}" = "mingw32"; then
4850 TEMACS_POST_LINK="\$(MINGW_TEMACS_POST_LINK)"
4851 ADDSECTION="../nt/addsection\$(EXEEXT)"
4852 ## Preload heap size of temacs.exe in MB.
4853 case "$canonical" in
4854 x86_64-*-*) EMACS_HEAPSIZE=42 ;;
4855 *) EMACS_HEAPSIZE=27 ;;
4859 AC_SUBST(ADDSECTION)
4860 AC_SUBST(TEMACS_POST_LINK)
4861 AC_SUBST(EMACS_HEAPSIZE)
4863 ## Common for all window systems
4864 if test "$window_system" != "none"; then
4865 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4866 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4869 AC_SUBST(WINDOW_SYSTEM_OBJ)
4871 AH_TOP([/* GNU Emacs site configuration template file.
4873 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2014
4874 Free Software Foundation, Inc.
4876 This file is part of GNU Emacs.
4878 GNU Emacs is free software: you can redistribute it and/or modify
4879 it under the terms of the GNU General Public License as published by
4880 the Free Software Foundation, either version 3 of the License, or
4881 (at your option) any later version.
4883 GNU Emacs is distributed in the hope that it will be useful,
4884 but WITHOUT ANY WARRANTY; without even the implied warranty of
4885 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4886 GNU General Public License for more details.
4888 You should have received a copy of the GNU General Public License
4889 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4892 /* No code in Emacs #includes config.h twice, but some bits of code
4893 intended to work with other packages as well (like gmalloc.c)
4894 think they can include it as many times as they like. */
4895 #ifndef EMACS_CONFIG_H
4896 #define EMACS_CONFIG_H
4899 AH_BOTTOM([#include <conf_post.h>
4901 #endif /* EMACS_CONFIG_H */
4910 #### Report on what we decided to do.
4911 #### Report GTK as a toolkit, even if it doesn't use Xt.
4912 #### It makes printing result more understandable as using GTK sets
4913 #### toolkit_scroll_bars to yes by default.
4914 if test "${HAVE_GTK}" = "yes"; then
4915 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
4918 if test $USE_ACL -ne 0; then
4919 ACL_SUMMARY="yes $LIB_ACL"
4925 Configured for \`${canonical}'.
4927 Where should the build process find the source code? ${srcdir}
4928 What compiler should emacs be built with? ${CC} ${CFLAGS}
4929 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4930 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4931 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4932 What window system should Emacs use? ${window_system}
4933 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4935 if test -n "${x_includes}"; then
4936 echo " Where do we find X Windows header files? ${x_includes}"
4938 echo " Where do we find X Windows header files? Standard dirs"
4940 if test -n "${x_libraries}"; then
4941 echo " Where do we find X Windows libraries? ${x_libraries}"
4943 echo " Where do we find X Windows libraries? Standard dirs"
4947 emacs_config_features=
4948 for opt in XAW3D XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS \
4949 GCONF GSETTINGS NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT \
4953 NOTIFY|ACL) eval val=\${${opt}_SUMMARY} ;;
4954 *) eval val=\${HAVE_$opt} ;;
4956 test x"$val" = xno && continue
4957 AS_VAR_APPEND([emacs_config_features], ["$optsep$opt"])
4960 AC_DEFINE_UNQUOTED(EMACS_CONFIG_FEATURES, "${emacs_config_features}",
4961 [Summary of some of the main features enabled by configure.])
4963 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4964 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4965 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4966 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4967 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4968 echo " Does Emacs use a png library? ${HAVE_PNG} $LIBPNG"
4969 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4970 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4972 echo " Does Emacs support sound? ${HAVE_SOUND}"
4974 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4975 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4976 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4977 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4978 echo " Does Emacs use a file notification library? ${NOTIFY_SUMMARY}"
4979 echo " Does Emacs use access control lists? ${ACL_SUMMARY}"
4980 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4981 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4982 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4984 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4985 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4986 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
4987 echo " Does Emacs use -lxft? ${HAVE_XFT}"
4988 echo " Does Emacs directly use zlib? ${HAVE_ZLIB}"
4990 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
4993 if test -n "${EMACSDATA}"; then
4994 echo " Environment variable EMACSDATA set to: $EMACSDATA"
4996 if test -n "${EMACSDOC}"; then
4997 echo " Environment variable EMACSDOC set to: $EMACSDOC"
5002 if test "$HAVE_NS" = "yes"; then
5004 echo "You must run \"${MAKE-make} install\" in order to test the built application.
5005 The installed application will go to nextstep/Emacs.app and can be
5006 run or moved from there."
5007 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
5008 echo "The application will be fully self-contained."
5010 echo "The lisp resources for the application will be installed under ${prefix}.
5011 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
5012 to run if these resources are not installed."
5017 if test "${opsys}" = "cygwin"; then
5019 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
5025 # Remove any trailing slashes in these variables.
5026 [test "${prefix}" != NONE &&
5027 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
5028 test "${exec_prefix}" != NONE &&
5029 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
5031 if test "$HAVE_NS" = "yes"; then
5032 if test "$NS_IMPL_GNUSTEP" = yes; then
5033 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
5034 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
5035 ns_check_file=Resources/Info-gnustep.plist
5037 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
5038 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
5039 ns_check_file=Contents/Info.plist
5041 AC_SUBST(ns_check_file)
5044 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
5045 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
5046 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
5047 dnl (else you get "no `Makefile.am' found for any configure output").
5048 dnl This will work, but you get a config.status that is not quite right
5049 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
5050 dnl That doesn't have any obvious consequences for Emacs, but on the whole
5051 dnl it seems better to just live with the duplication.
5052 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile nt/Makefile"
5054 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
5055 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
5056 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
5057 leim/Makefile nextstep/Makefile nt/Makefile])
5059 dnl test/ is not present in release tarfiles.
5060 opt_makefile=test/automated/Makefile
5062 if test -f "$srcdir/$opt_makefile.in"; then
5063 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
5064 dnl Again, it's best not to use a variable. Though you can add
5065 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
5066 AC_CONFIG_FILES([test/automated/Makefile])
5070 dnl The admin/ directory used to be excluded from tarfiles.
5071 if test -d $srcdir/admin; then
5072 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES admin/unidata/Makefile admin/grammars/Makefile"
5073 AC_CONFIG_FILES([admin/unidata/Makefile])
5074 AC_CONFIG_FILES([admin/grammars/Makefile])
5078 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
5080 AC_SUBST(SUBDIR_MAKEFILES_IN)
5082 dnl You might wonder (I did) why epaths.h is generated by running make,
5083 dnl rather than just letting configure generate it from epaths.in.
5084 dnl One reason is that the various paths are not fully expanded (see above);
5085 dnl eg gamedir=${prefix}/var/games/emacs.
5086 dnl Secondly, the GNU Coding standards require that one should be able
5087 dnl to run `make prefix=/some/where/else' and override the values set
5088 dnl by configure. This also explains the `move-if-change' test and
5089 dnl the use of force in the `epaths-force' rule in Makefile.in.
5090 AC_CONFIG_COMMANDS([src/epaths.h], [
5091 if test "${opsys}" = "mingw32"; then
5092 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
5094 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
5096 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
5098 dnl NB we have to cheat and use the ac_... version because abs_top_srcdir
5099 dnl is not yet set, sigh. Or we could use ../$srcdir/src/.gdbinit,
5101 AC_CONFIG_COMMANDS([src/.gdbinit], [
5102 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
5103 echo "source $ac_abs_top_srcdir/src/.gdbinit" > src/.gdbinit