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 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 GNU Make is required, so don't test for its individual features.
106 am_cv_make_support_nested_variables=yes
107 AC_DEFUN([AC_PROG_MAKE_SET],
109 AC_SUBST([SET_MAKE])])
111 dnl Check for GNU Make and possibly set MAKE before running AM_INIT_AUTOMAKE.
112 AC_CACHE_CHECK([for GNU Make], [ac_cv_path_MAKE],
113 [ac_path_MAKE_found=false
114 if test -n "$MAKE"; then
115 emacs_makeout=`($MAKE --version) 2>/dev/null` &&
116 case $emacs_makeout in
118 ac_path_MAKE_found=:;;
120 ac_cv_path_MAKE=$MAKE
122 emacs_tried_make=false
123 emacs_tried_gmake=false
124 emacs_tried_gnumake=false
125 AC_PATH_PROGS_FEATURE_CHECK([MAKE], [make gmake gnumake],
126 [[emacs_makeout=`($ac_path_MAKE --version) 2>/dev/null` &&
127 case $emacs_makeout in
129 # Use the fully-qualified program name only if the basename
130 # would not resolve to it.
131 if eval \$emacs_tried_$ac_prog; then
132 ac_cv_path_MAKE=$ac_path_MAKE
134 ac_cv_path_MAKE=$ac_prog
136 ac_path_MAKE_found=:;;
138 eval emacs_tried_$ac_prog=:]])
140 $ac_path_MAKE_found || { AC_MSG_ERROR([[Building Emacs requires GNU Make.
141 If you have it installed under another name, configure with 'MAKE=...'.
142 For example, run '$0 MAKE=gnu-make'.]])
144 MAKE=$ac_cv_path_MAKE
146 dnl Fairly arbitrary, older versions might work too.
147 AM_INIT_AUTOMAKE(1.11)
149 dnl Support for --program-prefix, --program-suffix and
150 dnl --program-transform-name options
153 dnl It is important that variables on the RHS not be expanded here,
154 dnl hence the single quotes. This is per the GNU coding standards, see
155 dnl (autoconf) Installation Directory Variables
156 dnl See also epaths.h below.
157 lispdir='${datadir}/emacs/${version}/lisp'
158 standardlisppath='${lispdir}'
159 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
160 '${datadir}/emacs/site-lisp'
161 lisppath='${locallisppath}:${standardlisppath}'
162 etcdir='${datadir}/emacs/${version}/etc'
163 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
164 etcdocdir='${datadir}/emacs/${version}/etc'
165 gamedir='${localstatedir}/games/emacs'
167 dnl Special option to disable the most of other options.
169 [AS_HELP_STRING([--without-all],
170 [omit almost all features and build
171 small executable with minimal dependencies])],
172 [with_features=$withval],
175 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
176 dnl Create a new --with option that defaults to being disabled.
177 dnl NAME is the base name of the option. The shell variable with_NAME
178 dnl will be set to either the user's value (if the option is
179 dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
180 dnl option is not specified). Note that the shell variable name is
181 dnl constructed as autoconf does, by replacing non-alphanumeric
182 dnl characters with "_".
183 dnl HELP-STRING is the help text for the option.
184 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
185 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
186 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
189 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
190 dnl Create a new --with option that defaults to $with_features.
191 dnl NAME is the base name of the option. The shell variable with_NAME
192 dnl will be set either to 'no' (for a plain --without-NAME) or to
193 dnl 'yes' (if the option is not specified). Note that the shell
194 dnl variable name is constructed as autoconf does, by replacing
195 dnl non-alphanumeric characters with "_".
196 dnl HELP-STRING is the help text for the option.
197 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
198 AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
199 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=$with_features])dnl
202 OPTION_DEFAULT_ON([pop],[don't support POP mail retrieval with movemail])
203 if test "$with_pop" = yes; then
204 AC_DEFINE(MAIL_USE_POP)
206 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
208 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
209 if test "$with_kerberos" != no; then
212 AH_TEMPLATE(KERBEROS,
213 [Define to support Kerberos-authenticated POP mail retrieval.])dnl
215 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
216 if test "${with_kerberos5}" != no; then
217 if test "${with_kerberos}" = no; then
221 AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
224 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
225 dnl FIXME hesiod support may not be present, so it seems like an error
226 dnl to define, or at least use, this unconditionally.
227 if test "$with_hesiod" != no; then
228 AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
231 OPTION_DEFAULT_OFF([mmdf],[support MMDF mailboxes])
232 if test "$with_mmdf" != no; then
233 AC_DEFINE(MAIL_USE_MMDF, 1, [Define to support MMDF mailboxes in movemail.])
236 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
237 if test "$with_mail_unlink" != no; then
238 AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
241 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
242 [string giving default POP mail host])],
243 AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
245 AC_ARG_WITH([sound],[AS_HELP_STRING([--with-sound=VALUE],
246 [compile with sound support (VALUE one of: yes, alsa, oss, bsd-ossaudio, no;
247 default yes). Only for GNU/Linux, FreeBSD, NetBSD, MinGW.])],
248 [ case "${withval}" in
249 yes|no|alsa|oss|bsd-ossaudio) val=$withval ;;
250 *) AC_MSG_ERROR([`--with-sound=$withval' is invalid;
251 this option's value should be `yes', `no', `alsa', `oss', or `bsd-ossaudio'.])
256 [with_sound=$with_features])
258 dnl FIXME currently it is not the last.
259 dnl This should be the last --with option, because --with-x is
260 dnl added later on when we find the file name of X, and it's best to
261 dnl keep them together visually.
262 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
263 [use an X toolkit (KIT one of: yes or gtk, gtk2, gtk3, lucid or athena, motif, no)])],
264 [ case "${withval}" in
265 y | ye | yes ) val=gtk ;;
267 l | lu | luc | luci | lucid ) val=lucid ;;
268 a | at | ath | athe | athen | athena ) val=athena ;;
269 m | mo | mot | moti | motif ) val=motif ;;
270 g | gt | gtk ) val=gtk ;;
274 AC_MSG_ERROR([`--with-x-toolkit=$withval' is invalid;
275 this option's value should be `yes', `no', `lucid', `athena', `motif', `gtk',
276 `gtk2' or `gtk3'. `yes' and `gtk' are synonyms.
277 `athena' and `lucid' are synonyms.])
283 OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit)])
284 if test "$with_wide_int" = yes; then
285 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
288 dnl _ON results in a '--without' option in the --help output, so
289 dnl the help text should refer to "don't compile", etc.
290 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
291 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
292 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
293 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
294 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
295 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
296 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
297 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
299 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
300 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
301 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
303 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
304 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
305 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
306 OPTION_DEFAULT_OFF([ns],[use NeXTstep (Cocoa or GNUstep) windowing system])
307 OPTION_DEFAULT_OFF([w32], [use native MS Windows GUI in a Cygwin build])
309 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
310 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
311 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
312 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
313 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
314 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
315 OPTION_DEFAULT_ON([zlib],[don't compile with zlib decompression support])
317 AC_ARG_WITH([file-notification],[AS_HELP_STRING([--with-file-notification=LIB],
318 [use a file notification library (LIB one of: yes, gfile, inotify, w32, no)])],
319 [ case "${withval}" in
320 y | ye | yes ) val=yes ;;
322 g | gf | gfi | gfil | gfile ) val=gfile ;;
323 i | in | ino | inot | inoti | inotif | inotify ) val=inotify ;;
324 w | w3 | w32 ) val=w32 ;;
325 * ) AC_MSG_ERROR([`--with-file-notification=$withval' is invalid;
326 this option's value should be `yes', `no', `gfile', `inotify' or `w32'.
327 `yes' is a synonym for `w32' on MS-Windows, for `no' on Nextstep,
328 otherwise for the first of `gfile' or `inotify' that is usable.])
331 with_file_notification=$val
333 [with_file_notification=$with_features])
335 ## For the times when you want to build Emacs but don't have
336 ## a suitable makeinfo, and can live without the manuals.
337 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
338 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
340 ## This might be a 'configure' arg.
341 AC_SUBST([ACLOCAL_PATH])
343 ## Makefile.in needs the cache file name.
346 ## This is an option because I do not know if all info/man support
347 ## compressed files, nor how to test if they do so.
348 OPTION_DEFAULT_ON([compress-install],
349 [don't compress some files (.el, .info, etc.) when installing. Equivalent to:
350 make GZIP_PROG= install])
352 AC_ARG_WITH(gameuser,dnl
353 [AS_HELP_STRING([--with-gameuser=USER],[user for shared game score files])])
354 test "X${with_gameuser}" != X && test "${with_gameuser}" != yes \
355 && gameuser="${with_gameuser}"
356 test "X$gameuser" = X && gameuser=games
358 AC_ARG_WITH([gnustep-conf],dnl
359 [AS_HELP_STRING([--with-gnustep-conf=FILENAME],
360 [name of GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
361 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
362 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
363 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
364 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
366 AC_ARG_ENABLE(ns-self-contained,
367 [AS_HELP_STRING([--disable-ns-self-contained],
368 [disable self contained build under NeXTstep])],
369 EN_NS_SELF_CONTAINED=$enableval,
370 EN_NS_SELF_CONTAINED=yes)
372 AC_ARG_ENABLE(locallisppath,
373 [AS_HELP_STRING([--enable-locallisppath=PATH],
374 [directories Emacs should search for lisp files specific
376 if test "${enableval}" = "no"; then
378 elif test "${enableval}" != "yes"; then
379 locallisppath=${enableval}
382 AC_ARG_ENABLE(checking,
383 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
384 [enable expensive run-time checks. With LIST,
385 enable only specific categories of checks.
386 Categories are: all,yes,no.
387 Flags are: stringbytes, stringoverrun, stringfreelist,
388 xmallocoverrun, conslist, glyphs])],
389 [ac_checking_flags="${enableval}"],[])
390 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
391 for check in $ac_checking_flags
394 # these set all the flags to specific states
395 yes) ac_enable_checking=1 ;;
396 no) ac_enable_checking= ;
397 ac_gc_check_stringbytes= ;
398 ac_gc_check_string_overrun= ;
399 ac_gc_check_string_free_list= ;
400 ac_xmalloc_overrun= ;
401 ac_gc_check_cons_list= ;
403 all) ac_enable_checking=1 ;
404 ac_gc_check_stringbytes=1 ;
405 ac_gc_check_string_overrun=1 ;
406 ac_gc_check_string_free_list=1 ;
407 ac_xmalloc_overrun=1 ;
408 ac_gc_check_cons_list=1 ;
410 # these enable particular checks
411 stringbytes) ac_gc_check_stringbytes=1 ;;
412 stringoverrun) ac_gc_check_string_overrun=1 ;;
413 stringfreelist) ac_gc_check_string_free_list=1 ;;
414 xmallocoverrun) ac_xmalloc_overrun=1 ;;
415 conslist) ac_gc_check_cons_list=1 ;;
416 glyphs) ac_glyphs_debug=1 ;;
417 *) AC_MSG_ERROR(unknown check category $check) ;;
422 if test x$ac_enable_checking != x ; then
423 AC_DEFINE(ENABLE_CHECKING, 1,
424 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
426 if test x$ac_gc_check_stringbytes != x ; then
427 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
428 [Define this temporarily to hunt a bug. If defined, the size of
429 strings is redundantly recorded in sdata structures so that it can
430 be compared to the sizes recorded in Lisp strings.])
432 if test x$ac_gc_check_string_overrun != x ; then
433 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
434 [Define this to check for short string overrun.])
436 if test x$ac_gc_check_string_free_list != x ; then
437 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
438 [Define this to check the string free list.])
440 if test x$ac_xmalloc_overrun != x ; then
441 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
442 [Define this to check for malloc buffer overrun.])
444 if test x$ac_gc_check_cons_list != x ; then
445 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
446 [Define this to check for errors in cons list.])
448 if test x$ac_glyphs_debug != x ; then
449 AC_DEFINE(GLYPH_DEBUG, 1,
450 [Define this to enable glyphs debugging code.])
453 AC_ARG_ENABLE(check-lisp-object-type,
454 [AS_HELP_STRING([--enable-check-lisp-object-type],
455 [enable compile time checks for the Lisp_Object data type.
456 This is useful for development for catching certain types of bugs.])],
457 if test "${enableval}" != "no"; then
458 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
459 [Define this to enable compile time checks for the Lisp_Object data type.])
463 dnl The name of this option is unfortunate. It predates, and has no
464 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
465 dnl Actually, it stops it working.
466 dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
467 AC_ARG_ENABLE(profiling,
468 [AS_HELP_STRING([--enable-profiling],
469 [build emacs with low-level, gprof profiling support.
470 Mainly useful for debugging Emacs itself. May not work on
471 all platforms. Stops profiler.el working.])],
472 [ac_enable_profiling="${enableval}"],[])
473 if test x$ac_enable_profiling != x ; then
474 PROFILING_CFLAGS="-DPROFILING=1 -pg"
478 AC_SUBST(PROFILING_CFLAGS)
480 AC_ARG_ENABLE(autodepend,
481 [AS_HELP_STRING([--enable-autodepend],
482 [automatically generate dependencies to .h-files.
483 Requires gcc, enabled if found.])],
484 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
486 AC_ARG_ENABLE(gtk-deprecation-warnings,
487 [AS_HELP_STRING([--enable-gtk-deprecation-warnings],
488 [Show Gtk+/Gdk deprecation warnings for Gtk+ >= 3.0])],
489 [ac_enable_gtk_deprecation_warnings="${enableval}"],[])
491 ### Canonicalize the configuration name.
495 configuration=${host_alias-${build_alias-$host}}
497 dnl This used to use changequote, but, apart from `changequote is evil'
498 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
499 dnl the great gob of text. Thus it's not processed for possible expansion.
500 dnl Just make sure the brackets remain balanced.
502 dnl Since Emacs can't find matching pairs of quotes, boundaries are
503 dnl indicated by comments.
507 ### If you add support for a new configuration, add code to this
508 ### switch statement to recognize your configuration name and select
509 ### the appropriate opsys.
511 ### As far as handling version numbers on operating systems is
512 ### concerned, make sure things will fail in a fixable way. If
513 ### /etc/MACHINES doesn't say anything about version numbers, be
514 ### prepared to handle anything reasonably. If version numbers
515 ### matter, be sure /etc/MACHINES says something about it.
518 case "${canonical}" in
520 ## GNU/Linux and similar ports
535 ## FreeBSD kernel + glibc based userland
546 *-*-openbsd* | *-*-mirbsd* )
550 ## Apple Darwin / Mac OS X
552 case "${canonical}" in
559 ## Use fink packages if available.
560 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
561 ## if test -d /sw/include && test -d /sw/lib; then
562 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
563 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
572 ## HP 9000 series 700 and 800, running HP/UX
576 hppa*-hp-hpux1[1-9]* )
578 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
582 rs6000-ibm-aix4.[23]* )
585 powerpc-ibm-aix4.[23]* )
588 rs6000-ibm-aix[56]* )
591 powerpc-ibm-aix[5-9]* | powerpc-ibm-aix[1-9][0-9]* )
595 ## Silicon Graphics machines
599 # Without defining _LANGUAGE_C, things get masked out in the headers
600 # so that, for instance, grepping for `free' in stdlib.h fails and
601 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
602 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
607 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
608 | x86_64-*-solaris2* | x86_64-*-sunos5*)
609 case "${canonical}" in
611 amd64-*-*|x86_64-*-*) ;;
615 case "${canonical}" in
616 *-sunos5.[1-9][0-9]* | *-solaris2.[1-9][0-9]* )
618 emacs_check_sunpro_c=yes
620 *-sunos5.[1-5]* | *-solaris2.[1-5]* ) unported=yes ;;
621 ## Note that Emacs 23.1's NEWS said the following would be dropped.
622 *-sunos5.6* | *-solaris2.6* )
626 ## 5.7 EOL Aug 2008, 5.8 EOL Mar 2012.
627 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
629 emacs_check_sunpro_c=yes
632 ## Watch out for a compiler that we know will not work.
633 case "${canonical}" in
634 *-solaris* | *-sunos5* )
635 if [ "x$CC" = x/usr/ucb/cc ]; then
636 ## /usr/ucb/cc doesn't work;
637 ## we should find some other compiler that does work.
645 ## Intel 386 machines where we don't care about the manufacturer.
647 case "${canonical}" in
648 *-darwin* ) opsys=darwin ;;
651 # MinGW overrides and adds some system headers in nt/inc.
652 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
654 *-sysv4.2uw* ) opsys=unixware ;;
655 *-sysv5uw* ) opsys=unixware ;;
656 *-sysv5OpenUNIX* ) opsys=unixware ;;
657 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
663 case "${canonical}" in
666 # MinGW overrides and adds some system headers in nt/inc.
667 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
669 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
678 ### If the code above didn't choose an operating system, just choose
679 ### an operating system based on the configuration name. You really
680 ### only want to use this when you have no idea what the right
681 ### operating system is; if you know what operating systems a machine
682 ### runs, it's cleaner to make it explicit in the case statement
684 if test x"${opsys}" = x; then
685 case "${canonical}" in
686 *-gnu* ) opsys=gnu ;;
696 if test $unported = yes; then
697 AC_MSG_ERROR([Emacs does not support `${canonical}' systems.
698 If you think it should, please send a report to ${PACKAGE_BUGREPORT}.
699 Check `etc/MACHINES' for recognized configuration names.])
703 #### Choose a compiler.
705 dnl Don't bother to test for C89.
706 AC_DEFUN([_AC_PROG_CC_C89], [$2])
708 dnl Sets GCC=yes if using gcc.
709 AC_PROG_CC([gcc cc cl clang "$XCRUN gcc" "$XCRUN clang"])
710 if test -n "$XCRUN"; then
711 AC_CHECK_PROGS(AR, [ar "$XCRUN ar"])
712 test -n "$AR" && export AR
715 dnl Emacs needs C99 or later.
720 if test x$GCC = xyes; then
721 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
723 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
726 dnl This is used in lib/Makefile.am to use nt/gnulib.mk, the
727 dnl alternative to lib/gnulib.mk, so as to avoid generating header files
728 dnl that clash with MinGW.
729 AM_CONDITIONAL([BUILDING_FOR_WINDOWSNT], [test "x$opsys" = "xmingw32"])
731 # Avoid gnulib's tests for -lcrypto, so that there's no static dependency on it.
732 AC_DEFUN([gl_CRYPTO_CHECK])
733 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
734 # as we don't use them.
735 AC_DEFUN([gl_FCNTL_O_FLAGS])
737 # Initialize gnulib right after choosing the compiler.
738 dnl Amongst other things, this sets AR and ARFLAGS.
741 if test "$ac_test_CFLAGS" != set; then
742 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
743 # if -g3 works and the user does not specify CFLAGS.
744 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
747 emacs_g3_CFLAGS='-g3';;
749 emacs_g3_CFLAGS='-g3 -O2';;
753 if test -n "$emacs_g3_CFLAGS"; then
754 emacs_save_CFLAGS=$CFLAGS
755 CFLAGS=$emacs_g3_CFLAGS
756 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
757 [emacs_cv_prog_cc_g3],
758 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
759 [emacs_cv_prog_cc_g3=yes],
760 [emacs_cv_prog_cc_g3=no])])
761 if test $emacs_cv_prog_cc_g3 != yes; then
762 CFLAGS=$emacs_save_CFLAGS
764 if test $opsys = mingw32; then
765 CFLAGS="$CFLAGS -gdwarf-2"
772 # No optimization flag was inferred for this non-GCC compiler.
773 # Try -O. This is needed for xlc on AIX; see Bug#14258.
774 emacs_save_CFLAGS=$CFLAGS
775 test -z "$CFLAGS" || CFLAGS="$CFLAGS "
777 AC_CACHE_CHECK([whether $CC accepts -O],
778 [emacs_cv_prog_cc_o],
779 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
780 [emacs_cv_prog_cc_o=yes],
781 [emacs_cv_prog_cc_o=no])])
782 if test $emacs_cv_prog_cc_o != yes; then
783 CFLAGS=$emacs_save_CFLAGS
788 AC_ARG_ENABLE([gcc-warnings],
789 [AS_HELP_STRING([--enable-gcc-warnings],
790 [turn on lots of GCC warnings/errors. This is intended for
791 developers, and may generate false alarms when used
792 with older or non-GNU development tools.])],
795 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
797 gl_gcc_warnings=$enableval],
801 # clang is unduly picky about some things.
802 AC_CACHE_CHECK([whether the compiler is clang], [emacs_cv_clang],
809 [emacs_cv_clang=yes],
810 [emacs_cv_clang=no])])
812 # When compiling with GCC, prefer -isystem to -I when including system
813 # include files, to avoid generating useless diagnostics for the files.
814 if test "$gl_gcc_warnings" != yes; then
816 if test "$emacs_cv_clang" = yes
818 # Turn off some warnings if supported.
819 gl_WARN_ADD([-Wno-switch])
820 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
821 gl_WARN_ADD([-Wno-pointer-sign])
826 # This, $nw, is the list of warnings we disable.
829 case $with_x_toolkit in
830 lucid | athena | motif)
831 # Old toolkits mishandle 'const'.
832 nw="$nw -Wwrite-strings"
835 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
838 AC_SUBST([WERROR_CFLAGS])
840 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
841 nw="$nw -Woverlength-strings" # Not a problem these days
842 nw="$nw -Wlogical-op" # any use of fwrite provokes this
843 nw="$nw -Wformat-nonliteral" # we do this a lot
844 nw="$nw -Wvla" # warnings in gettext.h
845 nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
846 nw="$nw -Wswitch-default" # Too many warnings for now
847 nw="$nw -Winline" # OK to ignore 'inline'
848 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
849 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
850 # signed overflow has undefined behavior
851 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
852 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
853 nw="$nw -Wbad-function-cast" # These casts are no worse than others.
855 # Emacs doesn't care about shadowing; see
856 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
859 # Emacs's use of alloca inhibits protecting the stack.
860 nw="$nw -Wstack-protector"
862 # The following line should be removable at some point.
863 nw="$nw -Wsuggest-attribute=pure"
865 # This part is merely for shortening the command line,
866 # since -Wno-FOO needs to be added below regardless.
867 nw="$nw -Wmissing-field-initializers"
869 nw="$nw -Wtype-limits"
870 nw="$nw -Wunused-parameter"
872 if test $emacs_cv_clang = yes; then
873 nw="$nw -Wcast-align"
876 gl_MANYWARN_ALL_GCC([ws])
877 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
881 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
882 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
883 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
884 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
885 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
886 gl_WARN_ADD([-Wno-format-nonliteral])
888 # In spite of excluding -Wlogical-op above, it is enabled, as of
889 # gcc 4.5.0 20090517.
890 gl_WARN_ADD([-Wno-logical-op])
892 # More things that clang is unduly picky about.
893 if test $emacs_cv_clang = yes; then
894 gl_WARN_ADD([-Wno-format-extra-args])
895 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
896 gl_WARN_ADD([-Wno-unused-command-line-argument])
897 gl_WARN_ADD([-Wno-unused-value])
900 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
901 AH_VERBATIM([FORTIFY_SOURCE],
902 [/* Enable compile-time and run-time bounds-checking, and some warnings,
903 without upsetting glibc 2.15+. */
904 #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
905 # define _FORTIFY_SOURCE 2
908 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
910 # We use a slightly smaller set of warning options for lib/.
911 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
913 nw="$nw -Wunused-macros"
915 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
916 AC_SUBST([GNULIB_WARN_CFLAGS])
926 AC_ARG_ENABLE(link-time-optimization,
927 [AS_HELP_STRING([--enable-link-time-optimization],
928 [build emacs with link-time optimization.
929 This is supported for gcc since 4.5.0 and clang.
930 Note that clang support is experimental - see INSTALL])],
931 if test "${enableval}" != "no"; then
933 if test $emacs_cv_clang = yes; then
934 AC_MSG_CHECKING([whether link-time optimization is supported by clang])
935 GOLD_PLUGIN=`$CC -print-file-name=LLVMgold.so 2>/dev/null`
936 if test -x "$GOLD_PLUGIN"; then
939 elif test x$GCC = xyes; then
940 AC_MSG_CHECKING([whether link-time optimization is supported by gcc])
941 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
942 if test x$CPUS != x; then
948 AC_MSG_ERROR([Link-time optimization is not supported with your compiler.])
950 if test -z "$LTO"; then
954 CFLAGS="$CFLAGS $LTO"
955 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
956 [ac_lto_supported=yes], [ac_lto_supported=no])
959 AC_MSG_RESULT([$ac_lto_supported])
960 if test "$ac_lto_supported" = "yes"; then
961 CFLAGS="$CFLAGS $LTO"
962 if test x$emacs_cv_clang = xyes; then
963 AC_MSG_WARN([Please read INSTALL before using link-time optimization with clang])
964 # WARNING: 'ar --plugin ...' doesn't work without
965 # command, so plugin name is appended to ARFLAGS.
966 ARFLAGS="cru --plugin $GOLD_PLUGIN"
967 RANLIB="$RANLIB --plugin $GOLD_PLUGIN"
972 dnl Some other nice autoconf tests.
973 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
976 dnl if test "x$RANLIB" = x; then
981 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
982 dnl can be made to directories. This is not relevant for our usage, and
983 dnl excludes some cases that work fine for us. Eg MS Windows or files
984 dnl hosted on AFS, both examples where simple links work, but links to
985 dnl directories fail. We use a cut-down version instead.
988 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
989 rm -f conf$$ conf$$.file
991 LN_S_FILEONLY='cp -p'
993 dnl On MinGW, ensure we will call the MSYS /bin/ln.exe, not some
994 dnl random program in the current directory.
995 if (echo >conf$$.file) 2>/dev/null; then
996 if ln -s conf$$.file conf$$ 2>/dev/null; then
997 if test "$opsys" = "mingw32"; then
998 LN_S_FILEONLY='/bin/ln -s'
1000 LN_S_FILEONLY='ln -s'
1002 elif ln conf$$.file conf$$ 2>/dev/null; then
1003 if test "$opsys" = "mingw32"; then
1004 LN_S_FILEONLY=/bin/ln
1011 rm -f conf$$ conf$$.file
1013 if test "$LN_S_FILEONLY" = "ln -s"; then
1014 AC_MSG_RESULT([yes])
1016 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
1019 AC_SUBST(LN_S_FILEONLY)
1022 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
1023 dnl doesn't support links to directories, as in "ln file dir". But that
1024 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
1025 dnl executables at "make install" time.
1026 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
1027 dnl for more details.
1028 if test "$opsys" = "mingw32"; then
1032 dnl On some Debian versions, "install-info" prints irritating messages
1033 dnl "This is not dpkg install-info anymore, but GNU install-info"
1034 dnl if called via an absolute file name.
1035 dnl Use the entirely-identical-but-quieter ginstall-info instead if present.
1036 dnl Sadly some people may have an old ginstall-info installed on
1037 dnl non-Debian systems, so we can't use this.
1038 dnl AC_PATH_PROGS(INSTALL_INFO, [ginstall-info install-info], :,
1039 dnl $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1041 AC_PATH_PROG(INSTALL_INFO, install-info, :,
1042 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1043 dnl Don't use GZIP, which is used by gzip for additional parameters.
1044 AC_PATH_PROG(GZIP_PROG, gzip)
1046 test $with_compress_install != yes && test -n "$GZIP_PROG" && \
1047 GZIP_PROG=" # $GZIP_PROG # (disabled by configure --without-compress-install)"
1049 if test $opsys = gnu-linux; then
1050 AC_PATH_PROG(PAXCTL, paxctl,,
1051 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
1052 if test "X$PAXCTL" != X; then
1053 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
1054 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1055 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
1056 else AC_MSG_RESULT(no); PAXCTL=""; fi])
1059 if test "${SETFATTR+set}" != set; then
1060 AC_CACHE_CHECK([for setfattr],
1061 [emacs_cv_prog_setfattr],
1063 if (setfattr -n user.pax.flags conftest.tmp) >/dev/null 2>&1; then
1064 emacs_cv_prog_setfattr=yes
1066 emacs_cv_prog_setfattr=no
1068 if test "$emacs_cv_prog_setfattr" = yes; then
1074 AC_SUBST([SETFATTR])
1078 ## Need makeinfo >= 4.7 (?) to build the manuals.
1079 AC_PATH_PROG(MAKEINFO, makeinfo, no)
1080 dnl By this stage, configure has already checked for egrep and set EGREP,
1081 dnl or exited with an error if no egrep was found.
1082 if test "$MAKEINFO" != "no"; then
1084 $MAKEINFO --version 2> /dev/null |
1085 $EGREP 'texinfo[[^0-9]]*([[1-4]][[0-9]]+|[[5-9]]|4\.[[7-9]]|4\.[[1-6]][[0-9]]+)'
1091 ## Makeinfo is unusual. For a released Emacs, the manuals are
1092 ## pre-built, and not deleted by the normal clean rules. makeinfo is
1093 ## therefore in the category of "special tools" not normally required, which
1094 ## configure does not have to check for (eg autoconf itself).
1095 ## In a repository checkout on the other hand, the manuals are not included.
1096 ## So makeinfo is a requirement to build from the repository, and configure
1097 ## should test for it as it does for any other build requirement.
1098 ## We use the presence of $srcdir/info/emacs to distinguish a release,
1099 ## with pre-built manuals, from a repository checkout.
1102 if test "$MAKEINFO" = "no"; then
1104 if test "x${with_makeinfo}" = "xno"; then
1106 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
1107 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
1108 source tree does not seem to have pre-built manuals in the `info' directory.
1109 Either install a suitable version of makeinfo, or re-run configure
1110 with the `--without-makeinfo' option to build without the manuals.] )
1113 AC_SUBST(HAVE_MAKEINFO)
1115 dnl Just so that there is only a single place we need to edit.
1117 INFO_OPTS=--no-split
1121 if test $opsys = mingw32; then
1122 DOCMISC_W32=efaq-w32
1126 AC_SUBST(DOCMISC_W32)
1128 dnl Add our options to ac_link now, after it is set up.
1130 if test x$GCC = xyes; then
1131 test "x$GCC_LINK_TEST_OPTIONS" != x && \
1132 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1134 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
1135 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1138 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
1139 dnl If we can link with the flag, it shouldn't do any harm anyhow.
1140 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
1141 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
1142 dnl if not built to support GNU ld.
1144 dnl For a long time, -znocombreloc was added to LDFLAGS rather than
1145 dnl LD_SWITCH_SYSTEM_TEMACS. That is:
1146 dnl * inappropriate, as LDFLAGS is a user option but this is essential.
1147 dnl Eg "make LDFLAGS=... all" could run into problems,
1148 dnl http://bugs.debian.org/684788
1149 dnl * unnecessary, since temacs is the only thing that actually needs it.
1150 dnl Indeed this is where it was originally, prior to:
1151 dnl http://lists.gnu.org/archive/html/emacs-pretest-bug/2004-03/msg00170.html
1152 late_LDFLAGS="$LDFLAGS"
1153 if test x$GCC = xyes; then
1154 LDFLAGS_NOCOMBRELOC="-Wl,-znocombreloc"
1156 LDFLAGS_NOCOMBRELOC="-znocombreloc"
1159 LDFLAGS="$LDFLAGS $LDFLAGS_NOCOMBRELOC"
1161 AC_MSG_CHECKING([for -znocombreloc])
1162 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1163 [AC_MSG_RESULT(yes)],
1164 LDFLAGS_NOCOMBRELOC=
1165 [AC_MSG_RESULT(no)])
1167 LDFLAGS="$late_LDFLAGS"
1169 AC_CACHE_CHECK([whether addresses are sanitized],
1170 [emacs_cv_sanitize_address],
1173 [[#ifndef __has_feature
1174 #define __has_feature(f) 0
1176 #if defined __SANITIZE_ADDRESS__ || __has_feature (address_sanitizer)
1178 error "Addresses are not sanitized.";
1181 [emacs_cv_sanitize_address=yes],
1182 [emacs_cv_sanitize_address=no])])
1184 dnl The function dump-emacs will not be defined and temacs will do
1185 dnl (load "loadup") automatically unless told otherwise.
1186 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
1188 your-opsys-here) CANNOT_DUMP=yes ;;
1191 if test "$CANNOT_DUMP" = "yes"; then
1192 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1193 elif test "$emacs_cv_sanitize_address" = yes; then
1194 AC_MSG_WARN([[Addresses are sanitized; suggest CANNOT_DUMP=yes]])
1197 AC_SUBST(CANNOT_DUMP)
1200 UNEXEC_OBJ=unexelf.o
1202 # MSDOS uses unexcoff.o
1204 UNEXEC_OBJ=unexaix.o
1210 UNEXEC_OBJ=unexmacosx.o
1213 UNEXEC_OBJ=unexhp9k800.o
1216 UNEXEC_OBJ=unexw32.o
1219 # Use the Solaris dldump() function, called from unexsol.c, to dump
1220 # emacs, instead of the generic ELF dump code found in unexelf.c.
1221 # The resulting binary has a complete symbol table, and is better
1222 # for debugging and other observability tools (debuggers, pstack, etc).
1224 # If you encounter a problem using dldump(), please consider sending
1225 # a message to the OpenSolaris tools-linking mailing list:
1226 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1228 # It is likely that dldump() works with older Solaris too, but this has
1229 # not been tested, so for now this change is for Solaris 10 or newer.
1230 UNEXEC_OBJ=unexsol.o
1237 ## Let `ld' find image libs and similar things in /usr/local/lib.
1238 ## The system compiler, GCC, has apparently been modified to not
1239 ## look there, contrary to what a stock GCC would do.
1240 ### It's not our place to do this. See bug#10313#17.
1241 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1246 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1247 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1251 ### It's not our place to do this. See bug#10313#17.
1252 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1257 ## Han Boetes <han@boetes.org> says this is necessary,
1258 ## otherwise Emacs dumps core on elf systems.
1259 LD_SWITCH_SYSTEM="-Z"
1262 AC_SUBST(LD_SWITCH_SYSTEM)
1264 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1266 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1267 ## which has not been defined yet. When this was handled with cpp,
1268 ## it was expanded to null when configure sourced the s/*.h file.
1269 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1270 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1271 ## (or somesuch), but because it is supposed to go at the _front_
1272 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1273 ## Compare with the gnu-linux case below, which added to the end
1274 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1275 ## LD_SWITCH_SYSTEM_TEMACS.
1278 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1285 AC_CHECK_DECL([__ELF__])
1286 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1287 ## With ELF, make sure that all common symbols get allocated to in the
1288 ## data section. Otherwise, the dump of temacs may miss variables in
1289 ## the shared library that have been initialized. For example, with
1290 ## GNU libc, __malloc_initialized would normally be resolved to the
1291 ## shared library's .bss section, which is fatal.
1292 if test "x$GCC" = "xyes"; then
1293 C_SWITCH_MACHINE="-fno-common"
1295 AC_MSG_ERROR([Non-GCC compilers are not supported.])
1298 dnl This was the unexalpha.c case. Removed in 24.1, 2010-07-24,
1299 dnl albeit under the mistaken assumption that said file
1300 dnl was no longer used.
1301 AC_MSG_ERROR([Non-ELF systems are not supported since Emacs 24.1.])
1305 AC_SUBST(C_SWITCH_MACHINE)
1307 AC_SUBST(UNEXEC_OBJ)
1310 ## Some programs in src produce warnings saying certain subprograms
1311 ## are too complex and need a MAXMEM value greater than 2000 for
1312 ## additional optimization. --nils@exp-math.uni-essen.de
1313 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1314 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1315 if test "$opsys" = "mingw32"; then
1316 case "$canonical" in
1317 x86_64-*-mingw32) C_SWITCH_SYSTEM="-mtune=generic" ;;
1318 *) C_SWITCH_SYSTEM="-mtune=pentium4" ;;
1321 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1322 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1323 AC_SUBST(C_SWITCH_SYSTEM)
1328 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1329 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1331 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1333 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1335 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1337 ## Motif needs -lgen.
1338 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1341 AC_SUBST(LIBS_SYSTEM)
1343 ### Make sure subsequent tests use flags consistent with the build flags.
1345 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1346 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1348 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1351 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C99 or better.
1352 AC_DEFUN([AC_TYPE_SIZE_T])
1353 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1354 AC_DEFUN([AC_TYPE_UID_T])
1356 # sqrt and other floating-point functions such as fmod and frexp
1357 # are found in -lm on many systems.
1359 AC_SEARCH_LIBS([sqrt], [m])
1360 if test "X$LIBS" = "X$OLD_LIBS"; then
1363 LIB_MATH=$ac_cv_search_sqrt
1367 dnl Current possibilities handled by sed (aix4-2 -> aix,
1368 dnl gnu-linux -> gnu/linux, etc.):
1369 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1370 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1371 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1378 ## Adding -lm confuses the dynamic linker, so omit it.
1381 freebsd | dragonfly )
1382 SYSTEM_TYPE=berkeley-unix
1384 gnu-linux | gnu-kfreebsd )
1386 hpux10-20 | hpux11 )
1390 SYSTEM_TYPE=windows-nt
1392 dnl NB this may be adjusted below.
1394 SYSTEM_TYPE=berkeley-unix
1398 SYSTEM_TYPE=usg-unix-v
1404 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1405 [The type of system you are compiling for; sets `system-type'.])
1408 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1409 pre_PKG_CONFIG_LIBS=$LIBS
1411 PKG_PROG_PKG_CONFIG(0.9.0)
1413 dnl EMACS_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4)
1414 dnl acts like PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4,
1415 dnl HAVE_GSTUFF=yes, HAVE_GSTUFF=no) -- see pkg-config man page --
1416 dnl except that it postprocesses CFLAGS as needed for --enable-gcc-warnings.
1417 dnl EMACS_CHECK_MODULES accepts optional 3rd and 4th arguments that
1418 dnl can take the place of the default HAVE_GSTUFF=yes and HAVE_GSTUFF=no
1420 AC_DEFUN([EMACS_CHECK_MODULES],
1421 [PKG_CHECK_MODULES([$1], [$2],
1422 [$1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1423 m4_default([$3], [HAVE_$1=yes])],
1424 [m4_default([$4], [HAVE_$1=no])])])
1427 if test "${with_sound}" != "no"; then
1428 # Sound support for GNU/Linux, the free BSDs, and MinGW.
1429 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h],
1430 have_sound_header=yes, [], [
1432 #define WIN32_LEAN_AND_MEAN
1433 #include <windows.h>
1436 test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
1437 AC_MSG_ERROR([OSS sound support requested but not found.])
1439 if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
1440 # Emulation library used on NetBSD.
1441 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1442 test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
1443 AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
1444 dnl FIXME? If we did find ossaudio, should we set with_sound=bsd-ossaudio?
1445 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1449 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1451 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1452 EMACS_CHECK_MODULES([ALSA], [$ALSA_MODULES])
1453 if test $HAVE_ALSA = yes; then
1454 SAVE_CFLAGS="$CFLAGS"
1456 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1457 LIBS="$ALSA_LIBS $LIBS"
1458 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1459 emacs_alsa_normal=yes,
1460 emacs_alsa_normal=no)
1461 if test "$emacs_alsa_normal" != yes; then
1462 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1463 [[snd_lib_error_set_handler (0);]])],
1464 emacs_alsa_subdir=yes,
1465 emacs_alsa_subdir=no)
1466 if test "$emacs_alsa_subdir" != yes; then
1467 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1469 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1472 CFLAGS="$SAVE_CFLAGS"
1474 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1475 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1476 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1477 elif test "${with_sound}" = "alsa"; then
1478 AC_MSG_ERROR([ALSA sound support requested but not found.])
1480 fi dnl with_sound = alsa|yes
1482 dnl Define HAVE_SOUND if we have sound support. We know it works and
1483 dnl compiles only on the specified platforms. For others, it
1484 dnl probably doesn't make sense to try.
1485 dnl FIXME So surely we should bypass this whole section if not using
1486 dnl one of these platforms?
1487 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1489 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1490 dnl Adjust the --with-sound help text if you change this.
1491 gnu-linux|freebsd|netbsd|mingw32)
1492 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1498 AC_SUBST(CFLAGS_SOUND)
1501 dnl checks for header files
1502 AC_CHECK_HEADERS_ONCE(
1506 sys/utsname.h pwd.h utmp.h util.h)
1508 AC_MSG_CHECKING(if personality LINUX32 can be set)
1509 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1510 emacs_cv_personality_linux32=yes,
1511 emacs_cv_personality_linux32=no)
1512 AC_MSG_RESULT($emacs_cv_personality_linux32)
1514 if test $emacs_cv_personality_linux32 = yes; then
1515 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1516 [Define to 1 if personality LINUX32 can be set.])
1519 dnl On Solaris 8 there's a compilation warning for term.h because
1520 dnl it doesn't define `bool'.
1521 AC_CHECK_HEADERS(term.h, , , -)
1523 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1525 if test $ac_cv_have_decl_sys_siglist != yes; then
1526 # For Tru64, at least:
1527 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1532 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1533 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1534 #if HAVE_SYS_SOCKET_H
1535 #include <sys/socket.h>
1537 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1538 #if HAVE_SYS_SOCKET_H
1539 #include <sys/socket.h>
1541 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1542 #if HAVE_SYS_SOCKET_H
1543 #include <sys/socket.h>
1546 dnl checks for structure members
1547 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1548 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1549 struct ifreq.ifr_addr,
1550 struct ifreq.ifr_addr.sa_len], , ,
1551 [AC_INCLUDES_DEFAULT
1552 #if HAVE_SYS_SOCKET_H
1553 #include <sys/socket.h>
1559 dnl Check for endianness.
1560 dnl AC_C_BIGENDIAN is done by gnulib.
1562 dnl check for Make feature
1567 dnl check if we have GCC and autodepend is on.
1568 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1569 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1570 SAVE_CFLAGS="$CFLAGS"
1571 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1572 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1573 CFLAGS="$SAVE_CFLAGS"
1574 test -f deps.d || ac_enable_autodepend=no
1576 AC_MSG_RESULT([$ac_enable_autodepend])
1577 if test $ac_enable_autodepend = yes; then
1578 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1579 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1580 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1581 deps_frag=autodeps.mk
1584 deps_frag=$srcdir/src/$deps_frag
1587 AC_SUBST_FILE(deps_frag)
1590 lisp_frag=$srcdir/src/lisp.mk
1591 AC_SUBST_FILE(lisp_frag)
1594 dnl checks for operating system services
1595 AC_SYS_LONG_FILE_NAMES
1597 #### Choose a window system.
1599 ## We leave window_system equal to none if
1600 ## we end up building without one. Any new window system should
1601 ## set window_system to an appropriate value and add objects to
1602 ## window-system-specific substs.
1606 if test "$no_x" != yes; then
1610 LD_SWITCH_X_SITE_RPATH=
1611 if test "${x_libraries}" != NONE; then
1612 if test -n "${x_libraries}"; then
1613 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1614 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1616 x_default_search_path=""
1617 x_search_path=${x_libraries}
1618 if test -z "${x_search_path}"; then
1619 x_search_path=/usr/lib
1621 for x_library in `echo ${x_search_path}: | \
1622 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1624 ${x_library}/X11/%L/%T/%N%C%S:\
1625 ${x_library}/X11/%l/%T/%N%C%S:\
1626 ${x_library}/X11/%T/%N%C%S:\
1627 ${x_library}/X11/%L/%T/%N%S:\
1628 ${x_library}/X11/%l/%T/%N%S:\
1629 ${x_library}/X11/%T/%N%S"
1630 if test x"${x_default_search_path}" = x; then
1631 x_default_search_path=${x_search_path}
1633 x_default_search_path="${x_search_path}:${x_default_search_path}"
1637 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1639 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1640 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1643 if test x"${x_includes}" = x; then
1644 bitmapdir=/usr/include/X11/bitmaps
1646 # accumulate include directories that have X11 bitmap subdirectories
1648 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1649 if test -d "${bmd}/X11/bitmaps"; then
1650 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1652 if test -d "${bmd}/bitmaps"; then
1653 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1656 if test ${bmd_acc} != "dummyval"; then
1657 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1664 tmp_CPPFLAGS="$CPPFLAGS"
1665 tmp_CFLAGS="$CFLAGS"
1666 CPPFLAGS="$CPPFLAGS -x objective-c"
1667 CFLAGS="$CFLAGS -x objective-c"
1670 if test "${with_ns}" != no; then
1671 if test "${opsys}" = darwin; then
1673 ns_appdir=`pwd`/nextstep/Emacs.app
1674 ns_appbindir=${ns_appdir}/Contents/MacOS
1675 ns_appresdir=${ns_appdir}/Contents/Resources
1676 ns_appsrc=Cocoa/Emacs.base
1677 elif test -f $GNUSTEP_CONFIG_FILE; then
1679 ns_appdir=`pwd`/nextstep/Emacs.app
1680 ns_appbindir=${ns_appdir}
1681 ns_appresdir=${ns_appdir}/Resources
1682 ns_appsrc=GNUstep/Emacs.base
1683 dnl FIXME sourcing this several times in subshells seems inefficient.
1684 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1685 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1686 dnl I seemed to need these as well with GNUstep-startup 0.25.
1687 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1688 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1689 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1690 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1691 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1692 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1693 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1694 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1695 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1696 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1697 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1698 dnl If they had chosen to either define it or not, we could have
1699 dnl just used AC_CHECK_DECL here.
1700 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1701 emacs_cv_objc_exceptions,
1702 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1703 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1707 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1708 if test $emacs_cv_objc_exceptions = yes; then
1709 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1710 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1711 [Define if GNUstep uses ObjC exceptions.])
1712 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1716 dnl This is only used while we test the NS headers, it gets reset below.
1717 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1719 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1720 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1721 files are missing or cannot be compiled.])])
1724 if test "${NS_IMPL_COCOA}" = "yes"; then
1725 AC_MSG_CHECKING([for OSX 10.4 or newer])
1726 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1728 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1729 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
1732 error "OSX 10.4 or newer required";
1736 ns_osx_have_104=yes,
1738 AC_MSG_RESULT([$ns_osx_have_104])
1740 if test $ns_osx_have_104 = no; then
1741 AC_MSG_ERROR([`OSX 10.4 or newer is required']);
1743 AC_MSG_CHECKING([for OSX 10.5 or newer])
1744 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1746 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1747 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1050
1750 error "OSX 10.5 not found";
1754 ns_osx_have_105=yes,
1756 AC_MSG_RESULT([$ns_osx_have_105])
1757 if test $ns_osx_have_105 = yes; then
1758 macfont_file="macfont.o"
1761 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1763 ns_have_nsinteger=yes,
1764 ns_have_nsinteger=no)
1765 if test $ns_have_nsinteger = yes; then
1766 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1770 AC_SUBST(LIBS_GNUSTEP)
1772 INSTALL_ARCH_INDEP_EXTRA=install-etc
1773 ns_self_contained=no
1776 if test "${HAVE_NS}" = yes; then
1777 if test "$with_toolkit_scroll_bars" = "no"; then
1778 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1781 window_system=nextstep
1782 # set up packaging dirs
1783 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1784 ns_self_contained=yes
1785 prefix=${ns_appresdir}
1786 exec_prefix=${ns_appbindir}
1787 dnl This one isn't really used, only archlibdir is.
1788 libexecdir="\${ns_appbindir}/libexec"
1789 archlibdir="\${ns_appbindir}/libexec"
1790 etcdocdir="\${ns_appresdir}/etc"
1791 etcdir="\${ns_appresdir}/etc"
1792 dnl FIXME maybe set datarootdir instead.
1793 dnl That would also get applications, icons, man.
1794 infodir="\${ns_appresdir}/info"
1795 mandir="\${ns_appresdir}/man"
1796 lispdir="\${ns_appresdir}/lisp"
1797 INSTALL_ARCH_INDEP_EXTRA=
1800 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o $macfont_file"
1802 CFLAGS="$tmp_CFLAGS"
1803 CPPFLAGS="$tmp_CPPFLAGS"
1804 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1805 AC_SUBST(ns_self_contained)
1807 AC_SUBST(NS_OBJC_OBJ)
1818 if test "${with_w32}" != no; then
1821 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1822 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1823 cannot be found.])])
1826 ## Using --with-w32 with MinGW is a no-op, but we allow it.
1829 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
1834 if test "${opsys}" = "mingw32"; then
1835 AC_MSG_CHECKING([whether Windows API headers are recent enough])
1836 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1837 #include <windows.h>
1838 #include <usp10.h>]],
1839 [[PIMAGE_NT_HEADERS pHeader;
1840 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
1841 [emacs_cv_w32api=yes
1844 AC_MSG_RESULT($emacs_cv_w32api)
1845 if test "${emacs_cv_w32api}" = "no"; then
1846 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
1857 if test "${HAVE_W32}" = "yes"; then
1858 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1859 AC_CHECK_TOOL(WINDRES, [windres],
1860 [AC_MSG_ERROR([No resource compiler found.])])
1861 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1862 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1863 EMACSRES="emacs.res"
1864 case "$canonical" in
1865 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
1866 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
1868 if test "${opsys}" = "cygwin"; then
1869 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1870 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1871 # Tell the linker that emacs.res is an object (which we compile from
1872 # the rc file), not a linker script.
1873 W32_RES_LINK="-Wl,emacs.res"
1875 UPDATE_MANIFEST=update-game-score.exe.manifest
1876 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
1877 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
1878 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
1879 W32_RES_LINK="\$(EMACSRES)"
1880 CLIENTRES="emacsclient.res"
1881 CLIENTW="emacsclientw\$(EXEEXT)"
1882 FIRSTFILE_OBJ=firstfile.o
1885 LIBS_ECLIENT="-lcomctl32"
1886 LIB_WSOCK32="-lwsock32"
1887 NTLIB="ntlib.$ac_objext"
1888 XARGS_LIMIT="-s 10000"
1894 AC_SUBST(EMACS_MANIFEST)
1895 AC_SUBST(UPDATE_MANIFEST)
1898 AC_SUBST(W32_RES_LINK)
1899 AC_SUBST(FIRSTFILE_OBJ)
1902 AC_SUBST(LIBS_ECLIENT)
1903 AC_SUBST(LIB_WSOCK32)
1905 AC_SUBST(XARGS_LIMIT)
1907 if test "${HAVE_W32}" = "yes"; then
1912 ## $window_system is now set to the window system we will
1915 if test "$window_system" = none && test "$gl_gcc_warnings" = yes; then
1916 # Too many warnings for now.
1918 nw="$nw -Wsuggest-attribute=const"
1919 nw="$nw -Wsuggest-attribute=noreturn"
1920 gl_MANYWARN_COMPLEMENT([WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
1922 gl_WARN_ADD([-Wno-unused-variable])
1923 gl_WARN_ADD([-Wno-unused-but-set-variable])
1924 gl_WARN_ADD([-Wno-unused-but-set-parameter])
1932 case "${window_system}" in
1937 case "${with_x_toolkit}" in
1938 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1939 motif ) USE_X_TOOLKIT=MOTIF ;;
1941 term_header=gtkutil.h
1942 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1943 dnl USE_X_TOOLKIT is set.
1944 USE_X_TOOLKIT=none ;;
1945 gtk2 ) with_gtk2=yes
1946 term_header=gtkutil.h
1947 USE_X_TOOLKIT=none ;;
1948 gtk3 ) with_gtk3=yes
1949 term_header=gtkutil.h
1950 USE_X_TOOLKIT=none ;;
1951 no ) USE_X_TOOLKIT=none ;;
1952 dnl If user did not say whether to use a toolkit, make this decision later:
1953 dnl use the toolkit if we have gtk, or X11R5 or newer.
1954 * ) USE_X_TOOLKIT=maybe ;;
1958 term_header=nsterm.h
1961 term_header=w32term.h
1965 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1966 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1967 if test "$HAVE_XSERVER" = true ||
1968 test -n "$DISPLAY" ||
1969 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1970 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1971 were found. You should install the relevant development files for X
1972 and for the toolkit you want, such as Gtk+ or Motif. Also make
1973 sure you have development files for image handling, i.e.
1974 tiff, gif, jpeg, png and xpm.
1975 If you are sure you want Emacs compiled without X window support, pass
1981 # Does the opsystem file prohibit the use of the GNU malloc?
1982 # Assume not, until told otherwise.
1986 [whether malloc is Doug Lea style],
1987 [emacs_cv_var_doug_lea_malloc],
1988 [emacs_cv_var_doug_lea_malloc=no
1989 dnl Hooks do not work with address sanitization.
1990 if test "$emacs_cv_sanitize_address" != yes; then
1993 [[#include <malloc.h>
1994 static void hook (void) {}]],
1995 [[malloc_set_state (malloc_get_state ());
1996 __after_morecore_hook = hook;
1997 __malloc_initialize_hook = hook;]])],
1998 [emacs_cv_var_doug_lea_malloc=yes])])
2000 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
2002 system_malloc=$emacs_cv_sanitize_address
2004 ## darwin ld insists on the use of malloc routines in the System framework.
2005 darwin|mingw32|sol2-10) system_malloc=yes ;;
2009 if test "${system_malloc}" = "yes"; then
2010 AC_DEFINE([SYSTEM_MALLOC], 1,
2011 [Define to 1 to use the system memory allocator, even if it is not
2015 (The GNU allocators don't work with this system configuration.)"
2018 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
2019 VMLIMIT_OBJ=vm-limit.o
2021 AC_CHECK_HEADERS([sys/vlimit.h])
2022 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
2025 [[extern char data_start[]; char ch;]],
2026 [[return data_start < &ch;]])],
2027 [emacs_cv_data_start=yes],
2028 [emacs_cv_data_start=no])])
2029 if test $emacs_cv_data_start = yes; then
2030 AC_DEFINE([HAVE_DATA_START], 1,
2031 [Define to 1 if data_start is the address of the start
2032 of the main data segment.])
2035 AC_SUBST(GMALLOC_OBJ)
2036 AC_SUBST(VMLIMIT_OBJ)
2038 if test "$doug_lea_malloc" = "yes" ; then
2039 if test "$GNU_MALLOC" = yes ; then
2041 (Using Doug Lea's new malloc from the GNU C Library.)"
2043 AC_DEFINE(DOUG_LEA_MALLOC, 1,
2044 [Define to 1 if the system memory allocator is Doug Lea style,
2045 with malloc hooks and malloc_set_state.])
2047 ## Use mmap directly for allocating larger buffers.
2048 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
2049 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
2050 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
2052 mingw32|gnu*) REL_ALLOC=no ;;
2056 if test x"${REL_ALLOC}" = x; then
2057 REL_ALLOC=${GNU_MALLOC}
2060 use_mmap_for_buffers=no
2062 cygwin|mingw32|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
2066 if test $use_mmap_for_buffers = yes; then
2067 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
2071 LIBS="$LIBS_SYSTEM $LIBS"
2073 dnl FIXME replace main with a function we actually want from this library.
2074 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
2076 dnl Check for the POSIX thread library.
2078 if test "$opsys" != "mingw32"; then
2079 AC_CHECK_HEADERS_ONCE(pthread.h)
2080 if test "$ac_cv_header_pthread_h"; then
2081 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
2082 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
2083 dnl testing for pthread_kill if Emacs uses gmalloc.c.
2084 if test "$GMALLOC_OBJ" = gmalloc.o; then
2085 emacs_pthread_function=pthread_atfork
2087 emacs_pthread_function=pthread_kill
2090 AC_SEARCH_LIBS([$emacs_pthread_function], [pthread],
2091 [AC_DEFINE([HAVE_PTHREAD], [1],
2092 [Define to 1 if you have pthread (-lpthread).])])
2093 if test "X$LIBS" != "X$OLD_LIBS"; then
2094 eval LIB_PTHREAD=\$ac_cv_search_$emacs_pthread_function
2098 AC_SUBST([LIB_PTHREAD])
2101 dnl Check for need for bigtoc support on IBM AIX
2105 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
2107 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
2108 *) gdb_cv_bigtoc=-bbigtoc ;;
2111 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
2112 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
2117 # Change CFLAGS, CPPFLAGS, and LIBS temporarily so that C_SWITCH_X_SITE
2118 # is for the tests that follow. We set them back later on.
2120 REAL_CFLAGS="$CFLAGS"
2121 REAL_CPPFLAGS="$CPPFLAGS"
2124 if test "${HAVE_X11}" = "yes"; then
2125 DEFS="$C_SWITCH_X_SITE $DEFS"
2126 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2128 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2129 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2131 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2132 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2133 # but it's more convenient here to set LD_RUN_PATH since this
2134 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2135 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2136 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2140 if test "${opsys}" = "gnu-linux"; then
2141 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2142 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2143 [[XOpenDisplay ("foo");]])],
2144 [xgnu_linux_first_failure=no],
2145 [xgnu_linux_first_failure=yes])
2146 if test "${xgnu_linux_first_failure}" = "yes"; then
2147 OLD_CPPFLAGS="$CPPFLAGS"
2149 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2150 LIBS="$LIBS -b i486-linuxaout"
2151 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2152 [[XOpenDisplay ("foo");]])],
2153 [xgnu_linux_second_failure=no],
2154 [xgnu_linux_second_failure=yes])
2155 if test "${xgnu_linux_second_failure}" = "yes"; then
2156 # If we get the same failure with -b, there is no use adding -b.
2157 # So leave it out. This plays safe.
2160 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2161 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2164 CPPFLAGS=$OLD_CPPFLAGS
2171 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2172 # header files included from there.
2173 AC_MSG_CHECKING(for Xkb)
2174 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2175 #include <X11/XKBlib.h>]],
2176 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2177 emacs_xkb=yes, emacs_xkb=no)
2178 AC_MSG_RESULT($emacs_xkb)
2179 if test $emacs_xkb = yes; then
2180 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2183 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2184 XScreenNumberOfScreen)
2187 if test "${window_system}" = "x11"; then
2188 AC_MSG_CHECKING(X11 version 6)
2189 AC_CACHE_VAL(emacs_cv_x11_version_6,
2190 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2191 [[#if XlibSpecificationRelease < 6
2194 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2195 if test $emacs_cv_x11_version_6 = yes; then
2196 AC_MSG_RESULT(6 or newer)
2197 AC_DEFINE(HAVE_X11R6, 1,
2198 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2199 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2200 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2204 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2205 [Define if you have usable X11R6-style XIM support.])
2209 AC_MSG_RESULT(before 6)
2214 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
2216 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2217 if test "${with_rsvg}" != "no"; then
2218 RSVG_REQUIRED=2.11.0
2219 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2221 EMACS_CHECK_MODULES([RSVG], [$RSVG_MODULE])
2222 AC_SUBST(RSVG_CFLAGS)
2225 if test $HAVE_RSVG = yes; then
2226 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2227 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2228 # Windows loads librsvg dynamically
2229 if test "${opsys}" = "mingw32"; then
2237 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${HAVE_W32}" = "yes"; then
2238 if test "${with_imagemagick}" != "no"; then
2239 ## 6.3.5 is the earliest version known to work; see Bug#17339.
2240 ## 6.8.2 makes Emacs crash; see Bug#13867.
2241 IMAGEMAGICK_MODULE="Wand >= 6.3.5 Wand != 6.8.2"
2242 EMACS_CHECK_MODULES([IMAGEMAGICK], [$IMAGEMAGICK_MODULE])
2243 AC_SUBST(IMAGEMAGICK_CFLAGS)
2244 AC_SUBST(IMAGEMAGICK_LIBS)
2246 if test $HAVE_IMAGEMAGICK = yes; then
2247 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2250 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2251 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2252 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
2262 gtk_term_header=$term_header
2265 if test "${opsys}" != "mingw32"; then
2266 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2269 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2271 dnl Checks for libraries.
2272 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2273 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2274 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2275 AC_MSG_ERROR($GTK_PKG_ERRORS)
2277 if test "$pkg_check_gtk" = "yes"; then
2278 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2279 GTK_OBJ=emacsgtkfixed.o
2280 gtk_term_header=gtkutil.h
2281 USE_GTK_TOOLKIT="GTK3"
2282 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2283 AC_DEFINE([GDK_DISABLE_DEPRECATION_WARNINGS], [1],
2284 [Define to 1 to disable GTK+/GDK deprecation warnings.])
2285 AC_DEFINE([GLIB_DISABLE_DEPRECATION_WARNINGS], [1],
2286 [Define to 1 to disable Glib deprecation warnings.])
2290 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2294 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2297 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2299 dnl Checks for libraries.
2300 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2301 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2302 if test "$pkg_check_gtk" = "no" &&
2303 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2305 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2307 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2314 if test x"$pkg_check_gtk" = xyes; then
2317 CFLAGS="$CFLAGS $GTK_CFLAGS"
2318 LIBS="$GTK_LIBS $LIBS"
2319 dnl Try to compile a simple GTK program.
2320 AC_MSG_CHECKING([whether GTK compiles])
2324 [[/* Check the Gtk and Glib APIs. */
2325 #include <gtk/gtk.h>
2326 #include <glib-object.h>
2328 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2332 GtkSettings *gs = 0;
2333 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2334 strict C prohibits this. Use gtk_main_iteration to test that the
2335 libraries are there. */
2336 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2337 0, 0, 0, G_CALLBACK (callback), 0))
2338 gtk_main_iteration ();
2341 AC_MSG_RESULT([$GTK_COMPILES])
2342 if test "${GTK_COMPILES}" != "yes"; then
2344 if test "$USE_X_TOOLKIT" != "maybe"; then
2345 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2348 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2350 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2351 GTK_OBJ="gtkutil.o $GTK_OBJ"
2352 term_header=$gtk_term_header
2354 if "$PKG_CONFIG" --atleast-version=2.10 gtk+-2.0; then
2357 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2358 closing open displays. This is no problem if you just use
2359 one display, but if you use more than one and close one of them
2369 if test "${HAVE_GTK}" = "yes"; then
2371 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2372 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2373 if test "$with_toolkit_scroll_bars" != no; then
2374 with_toolkit_scroll_bars=yes
2377 dnl Check if we have the old file selection dialog declared and
2378 dnl in the link library. In 2.x it may be in the library,
2379 dnl but not declared if deprecated featured has been selected out.
2380 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2381 HAVE_GTK_FILE_SELECTION=no
2382 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2383 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2384 #include <gtk/gtk.h>])
2385 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2386 AC_CHECK_FUNCS(gtk_file_selection_new)
2389 dnl Same as above for gtk_handle_box.
2390 HAVE_GTK_HANDLE_BOX=no
2391 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2392 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2393 #include <gtk/gtk.h>])
2394 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2395 AC_CHECK_FUNCS(gtk_handle_box_new)
2398 dnl Same as above for gtk_tearoff_menu_item.
2399 HAVE_GTK_TEAROFF_MENU_ITEM=no
2400 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2401 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2402 #include <gtk/gtk.h>])
2403 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2404 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2407 dnl Check for functions introduced in 2.14 and later.
2408 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2409 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2410 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2411 gtk_orientable_set_orientation \
2412 gtk_window_set_has_resize_grip)
2414 term_header=gtkutil.h
2420 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2421 dnl other platforms.
2424 if test "${with_dbus}" = "yes"; then
2425 EMACS_CHECK_MODULES([DBUS], [dbus-1 >= 1.0])
2426 if test "$HAVE_DBUS" = yes; then
2427 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2428 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2429 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2432 LIBS="$LIBS $DBUS_LIBS"
2433 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2434 dbus_type_is_valid \
2435 dbus_validate_bus_name \
2436 dbus_validate_path \
2437 dbus_validate_interface \
2438 dbus_validate_member)
2443 AC_SUBST(DBUS_CFLAGS)
2447 dnl GSettings has been tested under GNU/Linux only.
2449 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2450 EMACS_CHECK_MODULES([GSETTINGS], [gio-2.0 >= 2.26])
2451 if test "$HAVE_GSETTINGS" = "yes"; then
2453 CFLAGS="$CFLAGS $GSETTINGS_CFLAGS"
2455 LIBS="$LIBS $GSETTINGS_LIBS"
2456 AC_MSG_CHECKING([whether GSettings is in gio])
2459 [[/* Check that gsettings really is present. */
2460 #include <glib-object.h>
2461 #include <gio/gio.h>
2464 GSettings *settings;
2465 GVariant *val = g_settings_get_value (settings, "");
2467 [], HAVE_GSETTINGS=no)
2468 AC_MSG_RESULT([$HAVE_GSETTINGS])
2470 if test "$HAVE_GSETTINGS" = "yes"; then
2471 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2472 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2473 SETTINGS_LIBS="$GSETTINGS_LIBS"
2480 dnl GConf has been tested under GNU/Linux only.
2481 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2483 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2484 EMACS_CHECK_MODULES([GCONF], [gconf-2.0 >= 2.13])
2485 if test "$HAVE_GCONF" = yes; then
2486 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2487 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2488 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2489 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2493 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2494 EMACS_CHECK_MODULES([GOBJECT], [gobject-2.0 >= 2.0])
2495 if test "$HAVE_GOBJECT" = "yes"; then
2496 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2497 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2499 SAVE_CFLAGS="$CFLAGS"
2501 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2502 LIBS="$SETTINGS_LIBS $LIBS"
2503 CFLAGS="$SAVE_CFLAGS"
2506 AC_SUBST(SETTINGS_CFLAGS)
2507 AC_SUBST(SETTINGS_LIBS)
2510 dnl SELinux is available for GNU/Linux only.
2513 if test "${with_selinux}" = "yes"; then
2514 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2515 if test "$HAVE_LIBSELINUX" = yes; then
2516 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2517 LIBSELINUX_LIBS=-lselinux
2520 AC_SUBST(LIBSELINUX_LIBS)
2524 if test "${with_gnutls}" = "yes" ; then
2525 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 3.0.0],
2526 [HAVE_GNUTLS3=yes], [HAVE_GNUTLS3=no])
2527 if test "${HAVE_GNUTLS3}" = "yes"; then
2528 AC_DEFINE(HAVE_GNUTLS3, 1, [Define if using GnuTLS v3.])
2531 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6],
2532 [HAVE_GNUTLS=yes], [HAVE_GNUTLS=no])
2534 if test "${HAVE_GNUTLS}" = "yes"; then
2535 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2538 # Windows loads GnuTLS dynamically
2539 if test "${opsys}" = "mingw32"; then
2544 AC_SUBST(LIBGNUTLS_LIBS)
2545 AC_SUBST(LIBGNUTLS_CFLAGS)
2550 dnl FIXME? Don't auto-detect on NS, but do allow someone to specify
2551 dnl a particular library. This doesn't make much sense?
2552 if test "${with_ns}" = yes && test ${with_file_notification} = yes; then
2553 with_file_notification=no
2556 dnl MS Windows native file monitor is available for mingw32 only.
2557 case $with_file_notification,$opsys in
2558 w32,* | yes,mingw32)
2559 AC_CHECK_HEADER(windows.h)
2560 if test "$ac_cv_header_windows_h" = yes ; then
2561 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2562 NOTIFY_OBJ=w32notify.o
2563 NOTIFY_SUMMARY="yes (w32)"
2567 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2568 dnl has been added in glib 2.24. It has been tested under
2569 dnl GNU/Linux only. We take precedence over inotify, but this makes
2570 dnl only sense when glib has been compiled with inotify support. How
2572 case $with_file_notification,$NOTIFY_OBJ in
2574 EMACS_CHECK_MODULES([GFILENOTIFY], [gio-2.0 >= 2.24])
2575 if test "$HAVE_GFILENOTIFY" = "yes"; then
2576 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2577 NOTIFY_OBJ=gfilenotify.o
2578 NOTIFY_SUMMARY="yes -lgio (gfile)"
2582 dnl inotify is only available on GNU/Linux.
2583 case $with_file_notification,$NOTIFY_OBJ in
2585 AC_CHECK_HEADER(sys/inotify.h)
2586 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2587 AC_CHECK_FUNC(inotify_init1)
2588 if test "$ac_cv_func_inotify_init1" = yes; then
2589 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2590 NOTIFY_OBJ=inotify.o
2591 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2596 case $with_file_notification,$NOTIFY_OBJ in
2597 yes,* | no,* | *,?*) ;;
2598 *) AC_MSG_ERROR([File notification `$with_file_notification' requested but requirements not found.]) ;;
2601 if test -n "$NOTIFY_OBJ"; then
2602 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2604 AC_SUBST(NOTIFY_OBJ)
2605 AC_SUBST(GFILENOTIFY_CFLAGS)
2606 AC_SUBST(GFILENOTIFY_LIBS)
2608 dnl Do not put whitespace before the #include statements below.
2609 dnl Older compilers (eg sunos4 cc) choke on it.
2612 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2613 if test "$with_xaw3d" != no; then
2614 AC_CACHE_VAL(emacs_cv_xaw3d,
2615 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2616 #include <X11/Intrinsic.h>
2617 #include <X11/Xaw3d/Simple.h>]],
2619 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2620 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2621 emacs_cv_xaw3d=no)])
2625 if test $emacs_cv_xaw3d = yes; then
2626 AC_MSG_CHECKING(for xaw3d)
2627 AC_MSG_RESULT([yes; using Lucid toolkit])
2631 AC_DEFINE(HAVE_XAW3D, 1,
2632 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2634 AC_MSG_CHECKING(for xaw3d)
2636 AC_MSG_CHECKING(for libXaw)
2637 AC_CACHE_VAL(emacs_cv_xaw,
2638 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2639 #include <X11/Intrinsic.h>
2640 #include <X11/Xaw/Simple.h>]],
2644 if test $emacs_cv_xaw = yes; then
2645 AC_MSG_RESULT([yes; using Lucid toolkit])
2648 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2649 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2651 AC_MSG_ERROR([No X toolkit could be found.
2652 If you are sure you want Emacs compiled without an X toolkit, pass
2654 to configure. Otherwise, install the development libraries for the toolkit
2655 that you want to use (e.g. Gtk+) and re-run configure.])
2660 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2664 if test "${USE_X_TOOLKIT}" != "none"; then
2665 AC_MSG_CHECKING(X11 toolkit version)
2666 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2667 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2668 [[#if XtSpecificationRelease < 6
2671 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2672 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2673 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2674 AC_MSG_RESULT(6 or newer)
2675 AC_DEFINE(HAVE_X11XTR6, 1,
2676 [Define to 1 if you have the X11R6 or newer version of Xt.])
2677 LIBXTR6="-lSM -lICE"
2679 ## Use libw.a along with X11R6 Xt.
2680 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2683 AC_MSG_RESULT(before 6)
2686 dnl If using toolkit, check whether libXmu.a exists.
2687 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2689 if test x$HAVE_X11XTR6 = xyes; then
2690 OTHERLIBS='-lXt -lSM -lICE'
2694 AC_SEARCH_LIBS([XmuConvertStandardSelection], [Xmu], [], [], [$OTHERLIBS])
2695 if test "X$LIBS" != "X$OLDLIBS"; then
2696 LIBXMU=$ac_cv_search_XmuConvertStandardSelection
2699 dnl ac_cv_search_XmuConvertStandardSelection is also referenced below.
2705 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2706 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2707 if test -d /usr/include/openmotif; then
2708 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2709 emacs_cv_openmotif=yes
2710 case "$canonical" in
2711 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2712 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2715 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2718 emacs_cv_openmotif=no
2720 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2721 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2722 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2725 Motif version prior to 2.1.
2727 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2728 if test $emacs_cv_motif_version_2_1 = yes; then
2729 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2730 if test x$emacs_cv_openmotif = xyes; then
2731 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2734 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2735 # We put this in CFLAGS temporarily to precede other -I options
2736 # that might be in CFLAGS temporarily.
2737 # We put this in CPPFLAGS where it precedes the other -I options.
2738 OLD_CPPFLAGS=$CPPFLAGS
2740 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2741 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2742 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2744 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2745 if test $emacs_cv_lesstif = yes; then
2746 # Make sure this -I option remains in CPPFLAGS after it is set
2747 # back to REAL_CPPFLAGS.
2748 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2749 # have those other -I options anyway. Ultimately, having this
2750 # directory ultimately in CPPFLAGS will be enough.
2751 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2752 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2755 CPPFLAGS=$OLD_CPPFLAGS
2758 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2759 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2762 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2763 dnl using Motif or Xaw3d is available, and unless
2764 dnl --with-toolkit-scroll-bars=no was specified.
2766 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2767 [Define to 1 if we should use toolkit scroll bars.])dnl
2768 USE_TOOLKIT_SCROLL_BARS=no
2769 if test "${with_toolkit_scroll_bars}" != "no"; then
2770 if test "${USE_X_TOOLKIT}" != "none"; then
2771 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2772 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2774 USE_TOOLKIT_SCROLL_BARS=yes
2775 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2776 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2777 USE_TOOLKIT_SCROLL_BARS=yes
2779 elif test "${HAVE_GTK}" = "yes"; then
2780 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2781 USE_TOOLKIT_SCROLL_BARS=yes
2782 elif test "${HAVE_NS}" = "yes"; then
2783 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2784 USE_TOOLKIT_SCROLL_BARS=yes
2785 elif test "${HAVE_W32}" = "yes"; then
2786 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2787 USE_TOOLKIT_SCROLL_BARS=yes
2791 dnl See if XIM is available.
2792 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2793 #include <X11/Xlib.h>
2794 #include <X11/Xresource.h>]],
2795 [[XIMProc callback;]])],
2797 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2800 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2802 if test "${with_xim}" != "no"; then
2803 AC_DEFINE(USE_XIM, 1,
2804 [Define to 1 if we should use XIM, if it is available.])
2808 if test "${HAVE_XIM}" != "no"; then
2810 if test "$GCC" = yes; then
2811 CFLAGS="$CFLAGS --pedantic-errors"
2813 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2814 #include <X11/Xlib.h>
2815 #include <X11/Xresource.h>]],
2821 XPointer *client_data;
2823 /* If we're not using GCC, it's probably not XFree86, and this is
2824 probably right, but we can't use something like --pedantic-errors. */
2825 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2826 char*, XIMProc, XPointer*);
2828 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2830 [emacs_cv_arg6_star=yes])
2831 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2832 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2833 either XPointer or XPointer*.])dnl
2834 if test "$emacs_cv_arg6_star" = yes; then
2835 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2837 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2842 ### Start of font-backend (under any platform) section.
2843 # (nothing here yet -- this is a placeholder)
2844 ### End of font-backend (under any platform) section.
2846 ### Start of font-backend (under X11) section.
2847 if test "${HAVE_X11}" = "yes"; then
2848 ## Use -lXft if available, unless `--with-xft=no'.
2850 if test "x${with_x}" = "xno"; then
2854 if test "$with_xft" != no; then
2855 EMACS_CHECK_MODULES([FONTCONFIG], [fontconfig >= 2.2.0])
2856 with_xft=$HAVE_FONTCONFIG
2859 if test "x${with_xft}" != "xno"; then
2861 EMACS_CHECK_MODULES([XFT], [xft >= 0.13.0], [], [HAVE_XFT=no])
2862 ## Because xftfont.c uses XRenderQueryExtension, we also
2863 ## need to link to -lXrender.
2865 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2866 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2867 OLD_CPPFLAGS="$CPPFLAGS"
2868 OLD_CFLAGS="$CFLAGS"
2870 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2871 CFLAGS="$CFLAGS $XFT_CFLAGS"
2872 XFT_LIBS="-lXrender $XFT_LIBS"
2873 LIBS="$XFT_LIBS $LIBS"
2874 AC_CHECK_HEADER(X11/Xft/Xft.h,
2875 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
2876 [[#include <X11/X.h>]])
2878 if test "${HAVE_XFT}" = "yes"; then
2879 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2881 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2882 fi # "${HAVE_XFT}" = "yes"
2883 CPPFLAGS=$OLD_CPPFLAGS
2886 fi # "$HAVE_XFT" != no
2887 fi # "x${with_xft}" != "xno"
2889 ## We used to allow building with FreeType and without Xft.
2890 ## However, the ftx font backend driver is not in good shape.
2891 if test "$HAVE_XFT" != "yes"; then
2892 dnl For the "Does Emacs use" message at the end.
2896 dnl Strict linkers fail with
2897 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2898 dnl if -lfreetype is not specified.
2899 dnl The following is needed to set FREETYPE_LIBS.
2900 EMACS_CHECK_MODULES([FREETYPE], [freetype2])
2902 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2906 if test "${HAVE_FREETYPE}" = "yes"; then
2907 AC_DEFINE(HAVE_FREETYPE, 1,
2908 [Define to 1 if using the freetype and fontconfig libraries.])
2909 if test "${with_libotf}" != "no"; then
2910 EMACS_CHECK_MODULES([LIBOTF], [libotf])
2911 if test "$HAVE_LIBOTF" = "yes"; then
2912 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2913 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2914 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2915 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2916 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2917 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2918 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2922 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2923 dnl Does the new font backend require it, or can it work without it?
2927 if test "${HAVE_LIBOTF}" = yes; then
2928 if test "${with_m17n_flt}" != "no"; then
2929 EMACS_CHECK_MODULES([M17N_FLT], [m17n-flt])
2930 if test "$HAVE_M17N_FLT" = "yes"; then
2931 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2942 ### End of font-backend (under X11) section.
2944 AC_SUBST(FREETYPE_CFLAGS)
2945 AC_SUBST(FREETYPE_LIBS)
2946 AC_SUBST(FONTCONFIG_CFLAGS)
2947 AC_SUBST(FONTCONFIG_LIBS)
2948 AC_SUBST(LIBOTF_CFLAGS)
2949 AC_SUBST(LIBOTF_LIBS)
2950 AC_SUBST(M17N_FLT_CFLAGS)
2951 AC_SUBST(M17N_FLT_LIBS)
2953 ### Use -lXpm if available, unless `--with-xpm=no'.
2954 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
2957 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
2958 if test "${with_xpm}" != "no"; then
2959 SAVE_CPPFLAGS="$CPPFLAGS"
2960 SAVE_LDFLAGS="$LDFLAGS"
2961 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
2962 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
2963 AC_CHECK_HEADER(X11/xpm.h,
2964 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
2965 if test "${HAVE_XPM}" = "yes"; then
2966 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2967 AC_EGREP_CPP(no_return_alloc_pixels,
2968 [#include "X11/xpm.h"
2969 #ifndef XpmReturnAllocPixels
2970 no_return_alloc_pixels
2972 ], HAVE_XPM=no, HAVE_XPM=yes)
2974 if test "${HAVE_XPM}" = "yes"; then
2975 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
2979 CPPFLAGS="$SAVE_CPPFLAGS"
2980 LDFLAGS="$SAVE_LDFLAGS"
2985 if test "${HAVE_XPM}" = "yes"; then
2986 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2991 if test "${HAVE_X11}" = "yes"; then
2992 if test "${with_xpm}" != "no"; then
2993 AC_CHECK_HEADER(X11/xpm.h,
2994 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2995 if test "${HAVE_XPM}" = "yes"; then
2996 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2997 AC_EGREP_CPP(no_return_alloc_pixels,
2998 [#include "X11/xpm.h"
2999 #ifndef XpmReturnAllocPixels
3000 no_return_alloc_pixels
3002 ], HAVE_XPM=no, HAVE_XPM=yes)
3004 if test "${HAVE_XPM}" = "yes"; then
3012 if test "${HAVE_XPM}" = "yes"; then
3013 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3018 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
3019 ### slightly different requirements wrt image libraries (it doesn't
3020 ### use -lXpm because it loads the xpm shared library dynamically at
3022 if test "${opsys}" = "mingw32"; then
3023 if test "${with_xpm}" != "no"; then
3024 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
3028 if test "${HAVE_XPM}" = "yes"; then
3029 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3035 ### Use -ljpeg if available, unless `--with-jpeg=no'.
3036 ### mingw32 doesn't use -ljpeg, since it loads the library dynamically.
3039 if test "${opsys}" = "mingw32"; then
3040 if test "${with_jpeg}" != "no"; then
3041 dnl Checking for jpeglib.h can lose because of a redefinition of
3043 AC_CHECK_HEADER(jerror.h, HAVE_JPEG=yes, HAVE_JPEG=no)
3045 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
3046 if test "${HAVE_JPEG}" = "yes"; then
3047 AC_DEFINE(HAVE_JPEG)
3048 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
3049 [#include <jpeglib.h>
3050 version=JPEG_LIB_VERSION
3052 [AC_DEFINE(HAVE_JPEG)],
3053 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
3056 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3057 if test "${with_jpeg}" != "no"; then
3058 dnl Checking for jpeglib.h can lose because of a redefinition of
3060 AC_CHECK_HEADER(jerror.h,
3061 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
3064 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
3065 if test "${HAVE_JPEG}" = "yes"; then
3066 AC_DEFINE(HAVE_JPEG)
3067 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
3068 [#include <jpeglib.h>
3069 version=JPEG_LIB_VERSION
3071 [AC_DEFINE(HAVE_JPEG)],
3072 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
3075 if test "${HAVE_JPEG}" = "yes"; then
3083 if test "${with_zlib}" != "no"; then
3085 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
3087 case $ac_cv_search_inflateEnd in
3088 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3091 if test "${HAVE_ZLIB}" = "yes"; then
3092 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3093 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3094 if test "${opsys}" = "mingw32"; then
3100 ### Use -lpng if available, unless `--with-png=no'.
3104 if test "${NS_IMPL_COCOA}" = yes; then
3106 elif test "${with_png}" != no; then
3107 # mingw32 loads the library dynamically.
3108 if test "$opsys" = mingw32; then
3109 AC_CHECK_HEADER([png.h], [HAVE_PNG=yes])
3110 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3111 AC_MSG_CHECKING([for png])
3112 png_cflags=`(libpng-config --cflags) 2>&AS_MESSAGE_LOG_FD` &&
3113 png_libs=`(libpng-config --libs) 2>&AS_MESSAGE_LOG_FD` || {
3114 # libpng-config does not work; configure by hand.
3115 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
3116 # in /usr/include/libpng.
3117 if test -r /usr/include/libpng/png.h &&
3118 test ! -r /usr/include/png.h; then
3119 png_cflags=-I/usr/include/libpng
3127 CFLAGS="$CFLAGS $png_cflags"
3128 LIBS="$png_libs -lz -lm $LIBS"
3130 [AC_LANG_PROGRAM([[#include <png.h>]],
3131 [[return !png_get_channels (0, 0);]])],
3133 PNG_CFLAGS=`AS_ECHO(["$png_cflags"]) | sed -e "$edit_cflags"`
3135 # $LIBPNG requires explicit -lz in some cases.
3136 # We don't know what those cases are, exactly, so play it safe and
3137 # append -lz to any nonempty $LIBPNG, unless we're already using LIBZ.
3138 if test -n "$LIBPNG" && test -z "$LIBZ"; then
3139 LIBPNG="$LIBPNG -lz"
3143 AC_MSG_RESULT([$HAVE_PNG])
3146 if test $HAVE_PNG = yes; then
3147 AC_DEFINE([HAVE_PNG], [1], [Define to 1 if you have the png library.])
3150 CFLAGS="$CFLAGS $PNG_CFLAGS"
3151 AC_CHECK_DECL([png_longjmp],
3153 [AC_DEFINE([PNG_DEPSTRUCT], [],
3154 [Define to empty to suppress deprecation warnings when building
3155 with --enable-gcc-warnings and with libpng versions before 1.5,
3156 which lack png_longjmp.])],
3162 AC_SUBST(PNG_CFLAGS)
3164 ### Use -ltiff if available, unless `--with-tiff=no'.
3165 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3168 if test "${opsys}" = "mingw32"; then
3169 if test "${with_tiff}" != "no"; then
3170 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3172 if test "${HAVE_TIFF}" = "yes"; then
3173 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3175 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3176 if test "${with_tiff}" != "no"; then
3177 AC_CHECK_HEADER(tiffio.h,
3179 # At least one tiff package requires the jpeg library.
3180 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3181 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3184 if test "${HAVE_TIFF}" = "yes"; then
3185 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3186 dnl FIXME -lz -lm, as per libpng?
3192 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
3193 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3196 if test "${opsys}" = "mingw32"; then
3197 if test "${with_gif}" != "no"; then
3198 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3200 if test "${HAVE_GIF}" = "yes"; then
3201 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3203 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3204 || test "${HAVE_W32}" = "yes"; then
3205 AC_CHECK_HEADER(gif_lib.h,
3206 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3207 # Earlier versions can crash Emacs, but version 5.0 removes EGifPutExtensionLast.
3208 [AC_CHECK_LIB(gif, GifMakeMapObject, HAVE_GIF=yes,
3209 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])])
3211 if test "$HAVE_GIF" = yes; then
3213 elif test "$HAVE_GIF" = maybe; then
3214 # If gif_lib.h but no libgif, try libungif.
3215 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3216 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3219 if test "${HAVE_GIF}" = "yes"; then
3220 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3225 dnl Check for required libraries.
3226 if test "${HAVE_X11}" = "yes"; then
3229 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3230 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3231 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3232 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3233 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3234 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3235 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3236 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3237 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3238 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3240 if test "X${MISSING}" != X; then
3241 AC_MSG_ERROR([The following required libraries were not found:
3243 Maybe some development libraries/packages are missing?
3244 If you don't want to link with them give
3246 as options to configure])
3250 ### Use -lgpm if available, unless `--with-gpm=no'.
3253 if test "${with_gpm}" != "no"; then
3254 AC_CHECK_HEADER(gpm.h,
3255 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3257 if test "${HAVE_GPM}" = "yes"; then
3258 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3264 dnl Check for malloc/malloc.h on darwin
3265 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3268 ### Use NeXTstep API to implement GUI.
3269 if test "${HAVE_NS}" = "yes"; then
3270 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
3271 if test "${NS_IMPL_COCOA}" = "yes"; then
3272 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
3274 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3275 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3276 # See also .m.o rule in Makefile.in */
3277 # FIXME: are all these flags really needed? Document here why. */
3278 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3279 ## Extra CFLAGS applied to src/*.m files.
3280 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3285 ### Use session management (-lSM -lICE) if available
3288 if test "${HAVE_X11}" = "yes"; then
3289 AC_CHECK_HEADER(X11/SM/SMlib.h,
3290 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3292 if test "${HAVE_X_SM}" = "yes"; then
3293 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3299 ### Use XRandr (-lXrandr) if available
3301 if test "${HAVE_X11}" = "yes"; then
3302 XRANDR_REQUIRED=1.2.2
3303 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3304 EMACS_CHECK_MODULES([XRANDR], [$XRANDR_MODULES])
3305 if test $HAVE_XRANDR = no; then
3306 # Test old way in case pkg-config doesn't have it (older machines).
3307 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3308 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)])
3309 if test $HAVE_XRANDR = yes; then
3310 XRANDR_LIBS=-lXrandr
3313 if test $HAVE_XRANDR = yes; then
3314 SAVE_CFLAGS="$CFLAGS"
3316 CFLAGS="$XRANDR_CFLAGS $CFLAGS"
3317 LIBS="$XRANDR_LIBS $LIBS"
3318 AC_CHECK_FUNCS(XRRGetOutputPrimary XRRGetScreenResourcesCurrent)
3319 CFLAGS="$SAVE_CFLAGS"
3322 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3325 AC_SUBST(XRANDR_CFLAGS)
3326 AC_SUBST(XRANDR_LIBS)
3328 ### Use Xinerama (-lXinerama) if available
3330 if test "${HAVE_X11}" = "yes"; then
3331 XINERAMA_REQUIRED=1.0.2
3332 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3333 EMACS_CHECK_MODULES([XINERAMA], [$XINERAMA_MODULES])
3334 if test $HAVE_XINERAMA = no; then
3335 # Test old way in case pkg-config doesn't have it (older machines).
3336 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3337 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3338 if test $HAVE_XINERAMA = yes; then
3339 XINERAMA_LIBS=-lXinerama
3342 if test $HAVE_XINERAMA = yes; then
3343 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3346 AC_SUBST(XINERAMA_CFLAGS)
3347 AC_SUBST(XINERAMA_LIBS)
3349 ### Use Xfixes (-lXfixes) if available
3351 if test "${HAVE_X11}" = "yes"; then
3352 XFIXES_REQUIRED=4.0.0
3353 XFIXES_MODULES="xfixes >= $XFIXES_REQUIRED"
3354 EMACS_CHECK_MODULES([XFIXES], [$XFIXES_MODULES])
3355 if test $HAVE_XFIXES = no; then
3356 # Test old way in case pkg-config doesn't have it (older machines).
3357 AC_CHECK_HEADER(X11/extensions/Xfixes.h,
3358 [AC_CHECK_LIB(Xfixes, XFixesHideCursor, HAVE_XFIXES=yes)])
3359 if test $HAVE_XFIXES = yes; then
3360 XFIXES_LIBS=-lXfixes
3363 if test $HAVE_XFIXES = yes; then
3364 AC_DEFINE(HAVE_XFIXES, 1, [Define to 1 if you have the Xfixes extension.])
3367 AC_SUBST(XFIXES_CFLAGS)
3368 AC_SUBST(XFIXES_LIBS)
3370 ### Use libxml (-lxml2) if available
3371 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3373 if test "${with_xml2}" != "no"; then
3374 ### I'm not sure what the version number should be, so I just guessed.
3375 EMACS_CHECK_MODULES([LIBXML2], [libxml-2.0 > 2.6.17])
3376 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3377 if test "${HAVE_LIBXML2}" != "yes" -a "$opsys" = "darwin"; then
3378 SAVE_CPPFLAGS="$CPPFLAGS"
3379 CPPFLAGS="$CPPFLAGS -I$xcsdkdir/usr/include/libxml2"
3380 AC_CHECK_HEADER(libxml/HTMLparser.h,
3381 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3382 [#include <libxml/HTMLparser.h>])])
3383 CPPFLAGS="$SAVE_CPPFLAGS"
3384 if test "${HAVE_LIBXML2}" = "yes"; then
3385 LIBXML2_CFLAGS="-I'$xcsdkdir/usr/include/libxml2'"
3386 LIBXML2_LIBS="-lxml2"
3389 if test "${HAVE_LIBXML2}" = "yes"; then
3390 if test "${opsys}" != "mingw32"; then
3391 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no
3396 if test "${HAVE_LIBXML2}" = "yes"; then
3397 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3404 AC_SUBST(LIBXML2_LIBS)
3405 AC_SUBST(LIBXML2_CFLAGS)
3407 # If netdb.h doesn't declare h_errno, we must declare it by hand.
3408 # On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
3409 if test "${opsys}" = "mingw32"; then
3410 emacs_cv_netdb_declares_h_errno=yes
3412 AC_CACHE_CHECK(whether netdb declares h_errno,
3413 emacs_cv_netdb_declares_h_errno,
3414 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
3415 [[return h_errno;]])],
3416 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
3417 if test $emacs_cv_netdb_declares_h_errno = yes; then
3418 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
3421 # Check for mail-locking functions in a "mail" library. Probably this should
3422 # have the same check as for liblockfile below.
3423 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
3424 if test $have_mail = yes; then
3426 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
3429 LIBS="$LIBS_MAIL $LIBS"
3430 AC_CHECK_FUNCS(touchlock)
3435 dnl Debian, at least:
3436 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
3437 if test $have_lockfile = yes; then
3438 LIBS_MAIL=-llockfile
3439 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
3441 # If we have the shared liblockfile, assume we must use it for mail
3442 # locking (e.g. Debian). If we couldn't link against liblockfile
3443 # (no liblockfile.a installed), ensure that we don't need to.
3444 dnl This works for files generally, not just executables.
3445 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3446 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
3447 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
3448 if test $ac_cv_prog_liblockfile = yes; then
3449 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3450 This probably means that movemail could lose mail.
3451 There may be a `development' package to install containing liblockfile.])
3454 AC_CHECK_HEADERS_ONCE(maillock.h)
3457 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3458 ## interlock access to the mail spool. The alternative is a lock file named
3459 ## /usr/spool/mail/$USER.lock.
3462 aix4-2) mail_lock="lockf" ;;
3464 gnu|freebsd|dragonfly|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
3466 ## On GNU/Linux systems, both methods are used by various mail programs.
3467 ## I assume most people are using newer mailers that have heard of flock.
3468 ## Change this if you need to.
3469 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
3470 ## configure gets the right answers, and that means *NOT* using flock.
3471 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3472 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
3473 ## Debian maintainer hasn't provided a clean fix for Emacs.
3474 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
3475 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3476 ## correct logic. -- fx
3477 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3478 ## liblockfile is a Free Software replacement for libmail, used on
3479 ## Debian systems and elsewhere. -rfr.
3482 if test $have_mail = yes || test $have_lockfile = yes; then
3483 test $ac_cv_header_maillock_h = yes && mail_lock=no
3488 mail_lock="none-needed" ;;
3492 case "$mail_lock" in
3493 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3495 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3499 *) BLESSMAIL_TARGET="need-blessmail" ;;
3501 AC_SUBST(BLESSMAIL_TARGET)
3504 LIBS="$LIB_PTHREAD $LIB_MATH $LIBS"
3505 AC_CHECK_FUNCS(accept4 gethostname \
3506 getrusage get_current_dir_name \
3507 lrand48 random rint \
3508 select getpagesize setlocale \
3509 getrlimit setrlimit shutdown getaddrinfo \
3510 pthread_sigmask strsignal setitimer \
3511 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
3513 getpwent endpwent getgrent endgrent \
3514 cfmakeraw cfsetspeed copysign __executable_start log2)
3517 dnl No need to check for aligned_alloc and posix_memalign if using
3518 dnl gmalloc.o, as it supplies them. Don't use these functions on
3519 dnl Darwin as they are incompatible with unexmacosx.c.
3520 if test -z "$GMALLOC_OBJ" && test "$opsys" != darwin; then
3521 AC_CHECK_FUNCS([aligned_alloc posix_memalign], [break])
3524 dnl Cannot use AC_CHECK_FUNCS
3525 AC_CACHE_CHECK([for __builtin_unwind_init],
3526 emacs_cv_func___builtin_unwind_init,
3527 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3528 emacs_cv_func___builtin_unwind_init=yes,
3529 emacs_cv_func___builtin_unwind_init=no)])
3530 if test $emacs_cv_func___builtin_unwind_init = yes; then
3531 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3532 [Define to 1 if you have the `__builtin_unwind_init' function.])
3535 AC_CHECK_HEADERS_ONCE(sys/un.h)
3540 AC_CHECK_FUNCS(grantpt)
3542 # PTY-related GNU extensions.
3543 AC_CHECK_FUNCS(getpt posix_openpt)
3545 # Check this now, so that we will NOT find the above functions in ncurses.
3546 # That is because we have not set up to link ncurses in lib-src.
3547 # It's better to believe a function is not available
3548 # than to expect to find it in ncurses.
3549 # Also we need tputs and friends to be able to build at all.
3550 AC_MSG_CHECKING([for library containing tputs])
3551 # Run a test program that contains a call to tputs, a call that is
3552 # never executed. This tests whether a pre-'main' dynamic linker
3553 # works with the library. It's too much trouble to actually call
3554 # tputs in the test program, due to portability hassles. When
3555 # cross-compiling, assume the test program will run if it links.
3556 AC_DEFUN([tputs_link_source], [
3558 [[extern void tputs (const char *, int, int (*)(int));
3559 int main (int argc, char **argv)
3562 tputs (argv[0], 0, 0);
3566 if test "${opsys}" = "mingw32"; then
3569 # Maybe curses should be tried earlier?
3570 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3571 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3573 if test -z "$tputs_library"; then
3577 LIBS_TERMCAP=-l$tputs_library
3579 LIBS="$LIBS_TERMCAP $LIBS"
3581 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3582 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3584 if test "X$msg" != Xno; then
3589 AC_MSG_RESULT([$msg])
3590 if test "X$msg" = Xno; then
3591 AC_MSG_ERROR([The required function `tputs' was not found in any library.
3592 The following libraries were tried (in order):
3593 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3594 Please try installing whichever of these libraries is most appropriate
3595 for your system, together with its header files.
3596 For example, a libncurses-dev(el) or similar package.])
3599 ## Use termcap instead of terminfo?
3600 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3602 ## FIXME? In the cases below where we unconditionally set
3603 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3604 ## if that was found above to have tputs.
3605 ## Should we use the gnu* logic everywhere?
3607 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3608 ## The ncurses library has been moved out of the System framework in
3609 ## Mac OS X 10.2. So if configure detects it, set the command-line
3610 ## option to use it.
3611 darwin) LIBS_TERMCAP="-lncurses" ;;
3613 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3616 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3617 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3618 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3619 [[#if __FreeBSD_version < 400000
3622 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3624 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3626 if test $emacs_cv_freebsd_terminfo = yes; then
3627 LIBS_TERMCAP="-lncurses"
3630 LIBS_TERMCAP="-ltermcap"
3640 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3642 LIBS_TERMCAP="-ltermcap"
3646 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
3648 ## hpux: Make sure we get select from libc rather than from libcurses
3649 ## because libcurses on HPUX 10.10 has a broken version of select.
3650 ## We used to use -lc -lcurses, but this may be cleaner.
3651 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3652 # set that way, now it uses the default). Isn't this a contradiction?
3653 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3657 TERMCAP_OBJ=tparam.o
3658 if test $TERMINFO = yes; then
3659 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3660 TERMCAP_OBJ=terminfo.o
3662 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
3663 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
3665 AC_SUBST(LIBS_TERMCAP)
3666 AC_SUBST(TERMCAP_OBJ)
3669 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3670 # On Darwin, res_init appears not to be useful: see bug#562 and
3671 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3674 if test $opsys != darwin; then
3676 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3677 #include <arpa/nameser.h>
3678 #include <resolv.h>]],
3679 [[return res_init();]])],
3680 have_res_init=yes, have_res_init=no)
3681 if test "$have_res_init" = no; then
3683 LIBS="$LIBS -lresolv"
3684 AC_MSG_CHECKING(for res_init with -lresolv)
3685 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3686 #include <arpa/nameser.h>
3687 #include <resolv.h>]],
3688 [[return res_init();]])],
3689 have_res_init=yes, have_res_init=no)
3690 AC_MSG_RESULT($have_res_init)
3691 if test "$have_res_init" = yes ; then
3697 if test "$have_res_init" = yes; then
3698 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3702 # Do we need the Hesiod library to provide the support routines?
3703 dnl FIXME? Should we be skipping this on Darwin too?
3705 if test "$with_hesiod" != no ; then
3706 # Don't set $LIBS here -- see comments above. FIXME which comments?
3707 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3708 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3709 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3710 if test "$resolv" = yes ; then
3715 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3716 hesiod=yes, :, $RESOLVLIB)])
3718 if test x"$hesiod" = xyes; then
3724 # Do we need libresolv (due to res_init or Hesiod)?
3725 if test "$resolv" = yes && test $opsys != darwin; then
3732 # These tell us which Kerberos-related libraries to use.
3739 if test "${with_kerberos}" != no; then
3741 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3742 if test $have_com_err = yes; then
3743 COM_ERRLIB=-lcom_err
3744 LIBS="$COM_ERRLIB $LIBS"
3746 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3747 if test $have_crypto = yes; then
3749 LIBS="$CRYPTOLIB $LIBS"
3751 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3752 if test $have_k5crypto = yes; then
3753 CRYPTOLIB=-lk5crypto
3754 LIBS="$CRYPTOLIB $LIBS"
3756 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3757 if test $have_krb5=yes; then
3759 LIBS="$KRB5LIB $LIBS"
3761 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3762 if test "${with_kerberos5}" = no; then
3763 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3764 if test $have_des425 = yes; then
3766 LIBS="$DESLIB $LIBS"
3768 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3769 if test $have_des = yes; then
3771 LIBS="$DESLIB $LIBS"
3774 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3775 if test $have_krb4 = yes; then
3777 LIBS="$KRB4LIB $LIBS"
3779 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3780 if test $have_krb = yes; then
3782 LIBS="$KRB4LIB $LIBS"
3787 if test "${with_kerberos5}" != no; then
3788 AC_CHECK_HEADERS(krb5.h,
3789 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3790 [#include <krb5.h>])])
3792 AC_CHECK_HEADERS(krb.h,,
3793 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3794 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3796 AC_CHECK_HEADERS(com_err.h)
3800 AC_SUBST(COM_ERRLIB)
3806 AC_CHECK_HEADERS(valgrind/valgrind.h)
3808 AC_CHECK_FUNCS_ONCE(tzset)
3809 AC_MSG_CHECKING(whether localtime caches TZ)
3810 AC_CACHE_VAL(emacs_cv_localtime_cache,
3811 [if test x$ac_cv_func_tzset = xyes; then
3812 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3813 char TZ_GMT0[] = "TZ=GMT0";
3814 char TZ_PST8[] = "TZ=PST8";
3817 time_t now = time ((time_t *) 0);
3818 int hour_GMT0, hour_unset;
3819 if (putenv (TZ_GMT0) != 0)
3821 hour_GMT0 = localtime (&now)->tm_hour;
3823 hour_unset = localtime (&now)->tm_hour;
3824 if (putenv (TZ_PST8) != 0)
3826 if (localtime (&now)->tm_hour == hour_GMT0)
3829 if (localtime (&now)->tm_hour != hour_unset)
3832 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3833 [# If we have tzset, assume the worst when cross-compiling.
3834 emacs_cv_localtime_cache=yes])
3836 # If we lack tzset, report that localtime does not cache TZ,
3837 # since we can't invalidate the cache if we don't have tzset.
3838 emacs_cv_localtime_cache=no
3840 AC_MSG_RESULT($emacs_cv_localtime_cache)
3841 if test $emacs_cv_localtime_cache = yes; then
3842 AC_DEFINE(LOCALTIME_CACHE, 1,
3843 [Define to 1 if localtime caches TZ.])
3847 AC_CHECK_FUNC(socket, , ok_so_far=no)
3848 if test $ok_so_far = yes; then
3849 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3851 if test $ok_so_far = yes; then
3852 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3854 if test $ok_so_far = yes; then
3855 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3856 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3857 [Define to 1 if you have inet sockets.])
3862 AC_CHECK_FUNCS(snprintf)
3864 dnl Check for glib. This differs from other library checks in that
3865 dnl Emacs need not link to glib unless some other library is already
3866 dnl linking to glib. Although glib provides no facilities that Emacs
3867 dnl needs for its own purposes, when glib is present Emacs needs to
3868 dnl use primitives like g_main_context_query to avoid clashing with
3869 dnl glib at a low level.
3871 dnl Check this late, since it depends on $GTK_CFLAGS etc.
3875 CFLAGS="$CFLAGS $GTK_CFLAGS $RSVG_CFLAGS $DBUS_CFLAGS $SETTINGS_CFLAGS"
3876 LIBS="$LIBS $GTK_LIBS $RSVG_LIBS $DBUS_LIBS $SETTINGS_LIBS"
3877 CFLAGS="$CFLAGS $GFILENOTIFY_CFLAGS"
3878 LIBS="$LIBS $GFILENOTIFY_LIBS"
3879 AC_MSG_CHECKING([whether GLib is linked in])
3880 AC_LINK_IFELSE([AC_LANG_PROGRAM(
3883 [[g_print ("Hello world");]])],
3886 AC_MSG_RESULT([$links_glib])
3887 if test "${links_glib}" = "yes"; then
3888 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
3889 if test "$HAVE_NS" = no;then
3897 dnl Adapted from Haible's version.
3898 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3899 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3900 [[char* cs = nl_langinfo(CODESET);]])],
3901 emacs_cv_langinfo_codeset=yes,
3902 emacs_cv_langinfo_codeset=no)
3904 if test $emacs_cv_langinfo_codeset = yes; then
3905 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3906 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3911 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3912 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3913 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3914 if test "$emacs_cv_c_restrict_arr" = yes; then
3915 AC_DEFINE(__restrict_arr, __restrict,
3916 [Define to compiler's equivalent of C99 restrict keyword in array
3917 declarations. Define as empty for no equivalent.])
3920 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3921 dnl how the tty code is related to POSIX and/or other versions of termios.
3922 dnl The following looks like a useful start.
3924 dnl AC_SYS_POSIX_TERMIOS
3925 dnl if test $ac_cv_sys_posix_termios = yes; then
3926 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3927 dnl and macros for terminal control.])
3928 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3931 dnl Turned on June 1996 supposing nobody will mind it.
3932 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
3933 if test "${opsys}" != "mingw32"; then
3934 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3935 in the full name stands for the login id.])
3938 dnl Everybody supports this, except MS.
3939 dnl Seems like the kind of thing we should be testing for, though.
3940 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3941 if test "${opsys}" != "mingw32"; then
3942 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3945 dnl Everybody supports this, except MS-DOS.
3946 dnl Seems like the kind of thing we should be testing for, though.
3947 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3948 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3949 4.2-compatible sockets.])
3951 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3953 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
3954 a null file, or a data sink.])
3955 if test "${opsys}" = "mingw32"; then
3956 AC_DEFINE(NULL_DEVICE, ["NUL:"])
3958 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
3961 if test "${opsys}" = "mingw32"; then
3966 AC_DEFINE_UNQUOTED(SEPCHAR, ['$SEPCHAR'], [Character that separates PATH elements.])
3967 dnl This is for MinGW, and is used in test/automated/Makefile.in.
3968 dnl The MSYS Bash has heuristics for replacing ':' with ';' when it
3969 dnl decides that a command-line argument to be passed to a MinGW program
3970 dnl is a PATH-style list of directories. But that heuristics plays it
3971 dnl safe, and only does the replacement when it is _absolutely_ sure it
3972 dnl sees a colon-separated list of file names; e.g. ":." is left alone,
3973 dnl which breaks in-tree builds. So we do this manually instead.
3974 dnl Note that we cannot rely on PATH_SEPARATOR, as that one will always
3975 dnl be computed as ':' in MSYS Bash.
3978 dnl Everybody supports this, except MS-DOS.
3979 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3981 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3984 AC_DEFINE(DIRECTORY_SEP, ['/'],
3985 [Character that separates directories in a file name.])
3987 if test "${opsys}" = "mingw32"; then
3988 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
3989 [Returns true if character is a device separator.])
3991 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
3992 [Returns true if character is a directory separator.])
3994 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
3995 [Returns true if character is any form of separator.])
3997 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
3998 [Returns true if character is a device separator.])
4000 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
4001 [Returns true if character is a directory separator.])
4003 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
4004 [Returns true if character is any form of separator.])
4007 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
4011 dnl Unfortunately without libXmu we cannot support EditRes.
4012 if test "x$ac_cv_search_XmuConvertStandardSelection" = xno; then
4013 AC_DEFINE(NO_EDITRES, 1)
4018 dnl Assar Westerlund <assar@sics.se> says this is necessary for
4019 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
4020 AC_DEFINE(NO_EDITRES, 1)
4026 irix6-5 | sol2* | unixware )
4027 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
4028 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
4029 dnl need the constant to dimension an array. So wire in the appropriate
4031 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
4035 emacs_broken_SIGIO=no
4038 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
4039 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
4040 hpux* | irix6-5 | openbsd | sol2* | unixware )
4041 emacs_broken_SIGIO=yes
4045 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
4046 dnl the way this system works, libc functions that return malloced
4047 dnl memory use the libc malloc implementation. Calling xfree or
4048 dnl xrealloc on the results of such functions results in a crash.
4050 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
4051 dnl but that does not currently work on this system.
4053 dnl It is possible to completely override the malloc implementation on
4054 dnl AIX, but that involves putting the malloc functions in a shared
4055 dnl library and setting the MALLOCTYPE environment variable to point to
4056 dnl that shared library.
4058 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
4059 dnl to avoid a crash just use the Emacs implementation for that function.
4061 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
4062 dnl of this file, so that we do not check for get_current_dir_name
4063 dnl on AIX. But that might be fragile if something else ends
4064 dnl up testing for get_current_dir_name as a dependency.
4065 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
4066 get_current_dir_name should not be used.])
4070 dnl Circumvent a bug in FreeBSD. In the following sequence of
4071 dnl writes/reads on a PTY, read(2) returns bogus data:
4073 dnl write(2) 1022 bytes
4074 dnl write(2) 954 bytes, get EAGAIN
4075 dnl read(2) 1024 bytes in process_read_output
4076 dnl read(2) 11 bytes in process_read_output
4078 dnl That is, read(2) returns more bytes than have ever been written
4079 dnl successfully. The 1033 bytes read are the 1022 bytes written
4080 dnl successfully after processing (for example with CRs added if the
4081 dnl terminal is set up that way which it is here). The same bytes will
4082 dnl be seen again in a later read(2), without the CRs.
4083 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
4084 work around an issue when reading from a PTY.])
4090 dnl FIXME Can't we test if this exists (eg /proc/$$)?
4091 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
4096 darwin | dragonfly | freebsd | netbsd | openbsd )
4097 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
4098 close a pty to make it a controlling terminal (it is already a
4099 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
4103 dnl FIXME Surely we can test for this rather than hard-code it.
4105 netbsd | openbsd) sound_device="/dev/audio" ;;
4106 *) sound_device="/dev/dsp" ;;
4110 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
4111 [Name of the default sound device.])
4114 dnl Emacs can read input using SIGIO and buffering characters itself,
4115 dnl or using CBREAK mode and making C-g cause SIGINT.
4116 dnl The choice is controlled by the variable interrupt_input.
4118 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
4120 dnl Emacs uses the presence of the USABLE_SIGIO macro
4121 dnl to indicate whether or not signal-driven I/O is possible. It uses
4122 dnl INTERRUPT_INPUT to decide whether to use it by default.
4124 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
4125 dnl CBREAK mode has two disadvantages
4126 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
4127 dnl I hear that in system V this problem does not exist.
4128 dnl 2) Control-G causes output to be discarded.
4129 dnl I do not know whether this can be fixed in system V.
4131 dnl Another method of doing input is planned but not implemented.
4132 dnl It would have Emacs fork off a separate process
4133 dnl to read the input and send it to the true Emacs process
4136 darwin | gnu-linux | gnu-kfreebsd )
4137 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
4142 dnl If the system's imake configuration file defines `NeedWidePrototypes'
4143 dnl as `NO', we must define NARROWPROTO manually. Such a define is
4144 dnl generated in the Makefile generated by `xmkmf'. If we don't define
4145 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
4146 dnl taking float or double parameters.
4148 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
4149 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
4150 file defines `NeedWidePrototypes' as `NO'.])
4155 dnl Used in process.c, this must be a loop, even if it only runs once.
4156 dnl (Except on SGI; see below. Take that, clarity and consistency!)
4157 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
4158 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
4159 dnl trying suffixes 0-16.
4160 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
4161 first PTY, if PTYs are supported.])
4162 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
4163 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
4164 end of a PTY, if non-standard.])
4165 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
4166 end of a PTY, if non-standard.])
4170 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4171 dnl You allocate a pty by opening /dev/ptc to get the master side.
4172 dnl To get the name of the slave side, you just ttyname() the master side.
4173 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4174 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4178 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4179 dnl multi-line AC_DEFINEs are hard. :(
4180 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)])
4181 AC_DEFINE(PTY_NAME_SPRINTF, [])
4182 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4185 dnl FIXME? Maybe use same as freebsd - see bug#12040.
4187 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4188 dnl Not used, because PTY_ITERATION is defined.
4189 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4190 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
4191 dnl But we don't have to block SIGCHLD because it is blocked in the
4192 dnl implementation of grantpt.
4193 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (false)])
4194 AC_DEFINE(PTY_NAME_SPRINTF, [])
4195 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4199 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4202 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd )
4204 if test "x$ac_cv_func_grantpt" = xyes; then
4205 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4206 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4207 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4208 dnl to prevent sigchld_handler from intercepting the child's death.
4209 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); }])
4210 dnl if HAVE_POSIX_OPENPT
4211 if test "x$ac_cv_func_posix_openpt" = xyes; then
4212 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (false)])
4213 AC_DEFINE(PTY_NAME_SPRINTF, [])
4215 elif test "x$ac_cv_func_getpt" = xyes; then
4216 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4217 AC_DEFINE(PTY_NAME_SPRINTF, [])
4219 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4222 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4227 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4228 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4229 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4233 dnl It looks like this cannot be right, because it is not a loop.
4234 dnl However, process.c actually does this:
4240 dnl which presumably makes it OK, since irix == sgi (?).
4241 dnl FIXME it seems like this special treatment is unnecessary?
4242 dnl Why can't irix use a single-trip loop like eg cygwin?
4243 AC_DEFINE(PTY_ITERATION, [])
4244 dnl Not used, because PTY_ITERATION is defined.
4245 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
4246 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); }])
4247 dnl No need to get the pty name at all.
4248 AC_DEFINE(PTY_NAME_SPRINTF, [])
4249 dnl No need to use sprintf to get the tty name--we get that from _getpty.
4250 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4254 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
4255 dnl from intercepting that death. If any child but grantpt's should die
4256 dnl within, it should be caught after sigrelse(2).
4257 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); }])
4261 dnl Comments are as per sol2*.
4262 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); }])
4269 dnl This change means that we don't loop through allocate_pty too
4270 dnl many times in the (rare) event of a failure.
4271 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4272 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4273 dnl Push various streams modules onto a PTY channel. Used in process.c.
4274 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.])
4279 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4280 "typing" a signal character on the pty.])
4283 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4284 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
4285 aix4-2 | cygwin | gnu | irix6-5 | dragonfly | freebsd | netbsd | openbsd | darwin )
4286 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4289 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4290 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4291 gnu-linux | gnu-kfreebsd )
4293 AC_MSG_CHECKING([for signals via characters])
4294 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4295 #include <linux/version.h>
4296 #if LINUX_VERSION_CODE < 0x20400
4297 # error "Linux version too old"
4299 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4301 AC_MSG_RESULT([$emacs_signals_via_chars])
4302 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4307 AH_TEMPLATE(TAB3, [Undocumented.])
4310 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4312 gnu | dragonfly | freebsd | netbsd | openbsd )
4313 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4314 AC_DEFINE(TAB3, OXTABS)
4317 gnu-linux | gnu-kfreebsd )
4318 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4322 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4323 [do { extern void *__libc_ia64_register_backing_store_base; __builtin_ia64_flushrs (); mark_memory (__libc_ia64_register_backing_store_base, __builtin_ia64_bsp ());} while (false)],
4324 [Mark a secondary stack, like the register stack on the ia64.]), [])
4328 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4329 run_time_remap; for HPUX.])
4334 dnl This won't be used automatically yet. We also need to know, at least,
4335 dnl that the stack is continuous.
4336 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4337 registers relevant for conservative garbage collection in the jmp_buf.])
4341 dnl Not all the architectures are tested, but there are Debian packages
4342 dnl for SCM and/or Guile on them, so the technique must work. See also
4343 dnl comments in alloc.c concerning setjmp and gcc.
4344 dnl Fixme: it's probably safe to just use the GCC conditional below.
4345 gnu-linux | gnu-kfreebsd )
4346 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4347 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4348 || defined __alpha__ || defined __mips__ || defined __s390__ \
4349 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4350 || defined __ia64__ || defined __sh__
4353 # error "setjmp not known to work on this arch"
4355 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4360 if test x$GCC = xyes; then
4361 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4362 AC_DEFINE(GC_SETJMP_WORKS, 1)
4365 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
4366 aix* | dragonfly | freebsd | netbsd | openbsd | irix6-5 | sol2* )
4367 AC_DEFINE(GC_SETJMP_WORKS, 1)
4372 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4373 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4376 [[#include <setjmp.h>
4378 # define _longjmp longjmp
4383 _longjmp (j, 1);]])],
4384 [emacs_cv_func__setjmp=yes],
4385 [emacs_cv_func__setjmp=no])])
4386 if test $emacs_cv_func__setjmp = yes; then
4387 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4389 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4392 [[#include <setjmp.h>
4395 if (! sigsetjmp (j, 1))
4396 siglongjmp (j, 1);]])],
4397 [emacs_cv_func_sigsetjmp=yes],
4398 [emacs_cv_func_sigsetjmp=no])])
4399 if test $emacs_cv_func_sigsetjmp = yes; then
4400 AC_DEFINE([HAVE_SIGSETJMP], 1,
4401 [Define to 1 if sigsetjmp and siglongjmp work.
4402 The value of this symbol is irrelevant if HAVE__SETJMP is defined.])
4408 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4409 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4410 dnl and this is all we need.
4411 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4418 dnl Used in xfaces.c.
4419 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4420 some systems, where it requires time.h.])
4425 dnl Define symbols to identify the version of Unix this is.
4426 dnl Define all the symbols that apply correctly.
4427 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4428 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4429 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4430 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4435 dnl This symbol should be defined on AIX Version 3 ???????
4436 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4438 # error "_AIX not defined"
4440 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4444 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4448 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
4449 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4450 dnl distinguish OS X from pure Darwin.
4451 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4454 gnu-linux | gnu-kfreebsd )
4456 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4461 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4466 AC_DEFINE(USG5_4, [])
4467 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4471 AC_DEFINE(DOS_NT, [])
4472 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4473 if test "x$ac_enable_checking" != "x" ; then
4474 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4480 AC_DEFINE(USG5_4, [])
4481 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4486 AC_DEFINE(USG5_4, [])
4490 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4493 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4494 emacs_cv_usable_FIONREAD=no
4498 emacs_cv_usable_FIONREAD=yes
4503 [AC_LANG_PROGRAM([[#include <sys/types.h>
4504 #include <sys/ioctl.h>
4506 # include <sys/filio.h>
4509 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4510 [emacs_cv_usable_FIONREAD=yes],
4511 [emacs_cv_usable_FIONREAD=no])
4514 if test $emacs_cv_usable_FIONREAD = yes; then
4515 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4517 if test $emacs_broken_SIGIO = no; then
4518 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4520 [AC_LANG_PROGRAM([[#include <fcntl.h>
4523 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4524 [emacs_cv_usable_SIGIO=yes],
4525 [emacs_cv_usable_SIGIO=no])],
4526 [emacs_cv_usable_SIGIO=yes],
4527 [emacs_cv_usable_SIGIO=no])
4528 if test $emacs_cv_usable_SIGIO = yes; then
4529 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4536 dnl Emacs supplies its own malloc, but glib calls posix_memalign,
4537 dnl and on Cygwin prior to version 1.7.24 that becomes the
4538 dnl Cygwin-supplied posix_memalign. As malloc is not the Cygwin
4539 dnl malloc, the Cygwin posix_memalign always returns ENOSYS. A
4540 dnl workaround is to set G_SLICE=always-malloc. This is no longer
4541 dnl needed starting with cygwin-1.7.24, and it is no longer
4542 dnl effective starting with glib-2.36. */
4544 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
4545 G_SLICE environment variable to "always-malloc" at startup.])
4549 dnl It works to open the pty's tty in the parent (Emacs), then
4550 dnl close and reopen it in the child.
4551 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4552 works to open a pty's tty in the parent process, then close and
4553 reopen it in the child.])
4557 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4558 use VSUSP instead of VSWTCH.])
4562 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4567 # Set up the CFLAGS for real compilation, so we can substitute it.
4568 CFLAGS="$REAL_CFLAGS"
4569 CPPFLAGS="$REAL_CPPFLAGS"
4572 ## Hack to detect a buggy GCC version.
4573 if test "x$GCC" = xyes \
4574 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4575 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4576 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4577 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4580 version=$PACKAGE_VERSION
4582 copyright="Copyright (C) 2014 Free Software Foundation, Inc."
4583 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4584 [Short copyright string for this version of Emacs.])
4587 ### Specify what sort of things we'll be editing into Makefile and config.h.
4588 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4590 AC_SUBST(configuration)
4595 AC_SUBST(exec_prefix)
4598 AC_SUBST(sharedstatedir)
4599 AC_SUBST(libexecdir)
4603 AC_SUBST(standardlisppath)
4604 AC_SUBST(locallisppath)
4606 AC_SUBST(x_default_search_path)
4608 AC_SUBST(archlibdir)
4613 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4614 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4615 ## end of LIBX_BASE, but nothing ever set it.
4616 AC_SUBST(LD_SWITCH_X_SITE)
4617 AC_SUBST(C_SWITCH_X_SITE)
4618 AC_SUBST(GNUSTEP_CFLAGS)
4620 ## Used in lwlib/Makefile.in.
4621 AC_SUBST(X_TOOLKIT_TYPE)
4623 AC_SUBST(ns_appbindir)
4624 AC_SUBST(ns_appresdir)
4626 AC_SUBST(GNU_OBJC_CFLAGS)
4627 AC_SUBST(OTHER_FILES)
4629 if test -n "${term_header}"; then
4630 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4631 [Define to the header for the built-in window system.])
4634 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4635 [Define to the canonical Emacs configuration name.])
4636 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4637 [Define to the options passed to configure.])
4638 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4639 define this to include extra configuration information.])
4643 AC_DEFINE(config_opsysfile, <ms-w32.h>, [])
4650 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4651 AC_DEFINE(HAVE_X_WINDOWS, 1,
4652 [Define to 1 if you want to use the X window system.])
4654 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4656 if test "$HAVE_XFT" = "yes"; then
4657 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4658 elif test "$HAVE_FREETYPE" = "yes"; then
4659 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4669 if test "${USE_X_TOOLKIT}" != "none" ; then
4671 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4672 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4673 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4674 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4675 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4679 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4680 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4684 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4685 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4686 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4690 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4691 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4694 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4697 AC_SUBST(WIDGET_OBJ)
4700 case "$USE_X_TOOLKIT" in
4701 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4702 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4703 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4705 AC_SUBST(TOOLKIT_LIBW)
4707 if test "${opsys}" != "mingw32"; then
4708 if test "$USE_X_TOOLKIT" = "none"; then
4709 LIBXT_OTHER="\$(LIBXSM)"
4711 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4714 AC_SUBST(LIBXT_OTHER)
4716 if test "${HAVE_X11}" = "yes" ; then
4717 AC_DEFINE(HAVE_X11, 1,
4718 [Define to 1 if you want to use version 11 of X windows.])
4719 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4723 AC_SUBST(LIBX_OTHER)
4725 if test "$HAVE_GTK" = yes || test "$HAVE_X11" != yes; then
4727 elif test "$USE_X_TOOLKIT" = none; then
4728 LIBXMENU='$(oldXMenudir)/libXMenu11.a'
4730 LIBXMENU='$(lwlibdir)/liblw.a'
4734 if test "${GNU_MALLOC}" = "yes" ; then
4735 AC_DEFINE(GNU_MALLOC, 1,
4736 [Define to 1 if you want to use the GNU memory allocator.])
4740 if test "${REL_ALLOC}" = "yes" ; then
4741 AC_DEFINE(REL_ALLOC, 1,
4742 [Define REL_ALLOC if you want to use the relocating allocator for
4745 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4747 AC_SUBST(RALLOC_OBJ)
4749 if test "$opsys" = "cygwin"; then
4750 CYGWIN_OBJ="sheap.o cygw32.o"
4751 ## Cygwin differs because of its unexec().
4753 POST_ALLOC_OBJ=lastfile.o
4754 elif test "$opsys" = "mingw32"; then
4757 POST_ALLOC_OBJ=lastfile.o
4760 PRE_ALLOC_OBJ=lastfile.o
4763 AC_SUBST(CYGWIN_OBJ)
4764 AC_SUBST(PRE_ALLOC_OBJ)
4765 AC_SUBST(POST_ALLOC_OBJ)
4767 dnl Call this 'FORTIFY_SOUR' so that it sorts before the 'FORTIFY_SOURCE'
4768 dnl verbatim defined above. The tricky name is apropos, as this hack
4769 dnl makes Fortify go sour!
4770 AH_VERBATIM([FORTIFY_SOUR],
4771 [/* Without the following workaround, Emacs runs slowly on OS X 10.8.
4772 The workaround disables some useful run-time checking, so it
4773 should be conditional to the platforms with the performance bug.
4774 Perhaps Apple will fix this some day; also see m4/extern-inline.m4. */
4775 #if defined __APPLE__ && defined __GNUC__
4776 # ifndef _DONT_USE_CTYPE_INLINE_
4777 # define _DONT_USE_CTYPE_INLINE_
4779 # ifndef _FORTIFY_SOURCE
4780 # define _FORTIFY_SOURCE 0
4785 # If user asks to omit features, disable optional features that gnulib
4786 # might otherwise enable.
4787 if test "$with_features" = no && test "$enable_acl" != yes; then
4791 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4792 # it temporarily reverts them to their pre-pkg-config values,
4793 # because gnulib needs to work with both src (which uses the
4794 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4795 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4796 # and it therefore needs to run in an environment where LIBS does not
4797 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4798 # for some package unrelated to lib-src.
4801 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4802 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4803 gl_ASSERT_NO_GNULIB_POSIXCHECK
4804 gl_ASSERT_NO_GNULIB_TESTS
4809 if test "${opsys}" = "mingw32"; then
4810 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I \${abs_top_srcdir}/nt/inc"
4811 # Remove unneeded switches from the value of CC that goes to Makefiles
4812 CC=`echo $CC | sed -e "s,$GCC_TEST_OPTIONS,,"`
4816 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4819 ## The -headerpad option tells ld (see man page) to leave room at the
4820 ## end of the header for adding load commands. Needed for dumping.
4821 ## 0x690 is the total size of 30 segment load commands (at 56
4822 ## each); under Cocoa 31 commands are required.
4823 if test "$HAVE_NS" = "yes"; then
4824 libs_nsgui="-framework AppKit"
4825 if test "$NS_IMPL_COCOA" = "yes"; then
4826 libs_nsgui="$libs_nsgui -framework IOKit"
4833 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4835 ## This is here because src/Makefile.in did some extra fiddling around
4836 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
4837 ## LD_SWITCH_SYSTEM_TEMACS instead,
4838 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4839 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4842 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4843 ## find X at run-time.
4844 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4845 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4846 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4847 ## had different values in configure (in ac_link) and src/Makefile.in.
4848 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4849 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4852 ## Is it any better under MinGW64 to relocate emacs into higher addresses?
4853 case "$canonical" in
4854 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x400000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4855 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4859 openbsd) LD_SWITCH_SYSTEM_TEMACS='-nopie' ;;
4861 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4864 if test x$ac_enable_profiling != x ; then
4866 *freebsd | gnu-linux) ;;
4867 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
4871 LD_SWITCH_SYSTEM_TEMACS="$LDFLAGS_NOCOMBRELOC $LD_SWITCH_SYSTEM_TEMACS"
4873 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4875 ## Common for all window systems
4876 if test "$window_system" != "none"; then
4877 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4878 AC_DEFINE(POLL_FOR_INPUT, 1, [Define if you poll periodically to detect C-g.])
4879 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4882 AC_SUBST(WINDOW_SYSTEM_OBJ)
4884 AH_TOP([/* GNU Emacs site configuration template file.
4886 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2014
4887 Free Software Foundation, Inc.
4889 This file is part of GNU Emacs.
4891 GNU Emacs is free software: you can redistribute it and/or modify
4892 it under the terms of the GNU General Public License as published by
4893 the Free Software Foundation, either version 3 of the License, or
4894 (at your option) any later version.
4896 GNU Emacs is distributed in the hope that it will be useful,
4897 but WITHOUT ANY WARRANTY; without even the implied warranty of
4898 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4899 GNU General Public License for more details.
4901 You should have received a copy of the GNU General Public License
4902 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4905 /* No code in Emacs #includes config.h twice, but some bits of code
4906 intended to work with other packages as well (like gmalloc.c)
4907 think they can include it as many times as they like. */
4908 #ifndef EMACS_CONFIG_H
4909 #define EMACS_CONFIG_H
4912 AH_BOTTOM([#include <conf_post.h>
4914 #endif /* EMACS_CONFIG_H */
4923 #### Report on what we decided to do.
4924 #### Report GTK as a toolkit, even if it doesn't use Xt.
4925 #### It makes printing result more understandable as using GTK sets
4926 #### toolkit_scroll_bars to yes by default.
4927 if test "${HAVE_GTK}" = "yes"; then
4928 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
4931 if test $USE_ACL -ne 0; then
4932 ACL_SUMMARY="yes $LIB_ACL"
4938 Configured for \`${canonical}'.
4940 Where should the build process find the source code? ${srcdir}
4941 What compiler should emacs be built with? ${CC} ${CFLAGS}
4942 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4943 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4944 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4945 What window system should Emacs use? ${window_system}
4946 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4948 if test -n "${x_includes}"; then
4949 echo " Where do we find X Windows header files? ${x_includes}"
4951 echo " Where do we find X Windows header files? Standard dirs"
4953 if test -n "${x_libraries}"; then
4954 echo " Where do we find X Windows libraries? ${x_libraries}"
4956 echo " Where do we find X Windows libraries? Standard dirs"
4960 emacs_config_features=
4961 for opt in XAW3D XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS \
4962 GCONF GSETTINGS NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT \
4966 NOTIFY|ACL) eval val=\${${opt}_SUMMARY} ;;
4967 *) eval val=\${HAVE_$opt} ;;
4969 test x"$val" = xno && continue
4970 AS_VAR_APPEND([emacs_config_features], ["$optsep$opt"])
4973 AC_DEFINE_UNQUOTED(EMACS_CONFIG_FEATURES, "${emacs_config_features}",
4974 [Summary of some of the main features enabled by configure.])
4976 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4977 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4978 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4979 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4980 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4981 echo " Does Emacs use a png library? ${HAVE_PNG} $LIBPNG"
4982 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4983 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4985 echo " Does Emacs support sound? ${HAVE_SOUND}"
4987 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4988 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4989 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4990 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4991 echo " Does Emacs use a file notification library? ${NOTIFY_SUMMARY}"
4992 echo " Does Emacs use access control lists? ${ACL_SUMMARY}"
4993 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4994 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4995 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4997 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4998 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4999 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
5000 echo " Does Emacs use -lxft? ${HAVE_XFT}"
5001 echo " Does Emacs directly use zlib? ${HAVE_ZLIB}"
5003 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
5006 if test -n "${EMACSDATA}"; then
5007 echo " Environment variable EMACSDATA set to: $EMACSDATA"
5009 if test -n "${EMACSDOC}"; then
5010 echo " Environment variable EMACSDOC set to: $EMACSDOC"
5015 if test "$HAVE_NS" = "yes"; then
5017 echo "You must run \"${MAKE-make} install\" in order to test the built application.
5018 The installed application will go to nextstep/Emacs.app and can be
5019 run or moved from there."
5020 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
5021 echo "The application will be fully self-contained."
5023 echo "The lisp resources for the application will be installed under ${prefix}.
5024 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
5025 to run if these resources are not installed."
5030 if test "${opsys}" = "cygwin"; then
5032 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
5038 # Remove any trailing slashes in these variables.
5039 [test "${prefix}" != NONE &&
5040 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
5041 test "${exec_prefix}" != NONE &&
5042 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
5044 if test "$HAVE_NS" = "yes"; then
5045 if test "$NS_IMPL_GNUSTEP" = yes; then
5046 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
5047 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
5048 ns_check_file=Resources/Info-gnustep.plist
5050 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
5051 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
5052 ns_check_file=Contents/Info.plist
5054 AC_SUBST(ns_check_file)
5057 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
5058 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
5059 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
5060 dnl (else you get "no `Makefile.am' found for any configure output").
5061 dnl This will work, but you get a config.status that is not quite right
5062 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
5063 dnl That doesn't have any obvious consequences for Emacs, but on the whole
5064 dnl it seems better to just live with the duplication.
5065 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile nt/Makefile"
5067 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
5068 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
5069 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
5070 leim/Makefile nextstep/Makefile nt/Makefile])
5072 dnl test/ is not present in release tarfiles.
5073 opt_makefile=test/automated/Makefile
5075 if test -f "$srcdir/$opt_makefile.in"; then
5076 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
5077 dnl Again, it's best not to use a variable. Though you can add
5078 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
5079 AC_CONFIG_FILES([test/automated/Makefile])
5083 dnl The admin/ directory used to be excluded from tarfiles.
5084 if test -d $srcdir/admin; then
5085 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES admin/unidata/Makefile admin/grammars/Makefile"
5086 AC_CONFIG_FILES([admin/unidata/Makefile])
5087 AC_CONFIG_FILES([admin/grammars/Makefile])
5091 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
5093 AC_SUBST(SUBDIR_MAKEFILES_IN)
5095 dnl You might wonder (I did) why epaths.h is generated by running make,
5096 dnl rather than just letting configure generate it from epaths.in.
5097 dnl One reason is that the various paths are not fully expanded (see above);
5098 dnl eg gamedir=${prefix}/var/games/emacs.
5099 dnl Secondly, the GNU Coding standards require that one should be able
5100 dnl to run `make prefix=/some/where/else' and override the values set
5101 dnl by configure. This also explains the `move-if-change' test and
5102 dnl the use of force in the `epaths-force' rule in Makefile.in.
5103 AC_CONFIG_COMMANDS([src/epaths.h], [
5104 if test "${opsys}" = "mingw32"; then
5105 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
5107 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
5109 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
5111 dnl NB we have to cheat and use the ac_... version because abs_top_srcdir
5112 dnl is not yet set, sigh. Or we could use ../$srcdir/src/.gdbinit,
5114 AC_CONFIG_COMMANDS([src/.gdbinit], [
5115 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
5116 echo "source $ac_abs_top_srcdir/src/.gdbinit" > src/.gdbinit
5122 test "$MAKE" = make || AC_MSG_NOTICE([Now you can run '$MAKE'.])