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, 1999-2016 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, 26.0.50, bug-gnu-emacs@gnu.org)
28 dnl Set emacs_config_options to the options of 'configure', quoted for the shell,
29 dnl and then quoted again for a C string. Separate options with spaces.
30 dnl Add some environment variables, if they were passed via the environment
31 dnl rather than on the command-line.
34 dnl This is the documented way to record the args passed to configure,
35 dnl rather than $ac_configure_args.
36 for opt in "$@" CFLAGS CPPFLAGS LDFLAGS; do
38 -n | --no-create | --no-recursion)
40 CFLAGS | CPPFLAGS | LDFLAGS)
41 eval 'test "${'$opt'+set}" = set' || continue
43 *" $opt="*) continue ;;
45 eval opt=$opt=\$$opt ;;
48 emacs_shell_specials=$IFS\''"#$&()*;<>?@<:@\\`{|~'
50 *[["$emacs_shell_specials"]]*)
53 emacs_quote_apostrophes="s/'/'\\\\''/g"
54 opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_apostrophes"` ;;
59 emacs_quote_for_c='s/[["\\]]/\\&/g; $!s/$/\\n\\/'
60 opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_for_c"` ;;
63 AS_VAR_APPEND([emacs_config_options], ["$optsep$opt"])
67 AC_CONFIG_HEADERS(src/config.h:src/config.in)
68 AC_CONFIG_SRCDIR(src/lisp.h)
69 AC_CONFIG_AUX_DIR(build-aux)
70 dnl automake 1.13 and later understand this, making -I m4 unnecessary.
71 dnl With older versions this is a no-op.
72 AC_CONFIG_MACRO_DIR(m4)
75 AC_CHECK_PROGS(XCRUN, [xcrun])
76 if test -n "$XCRUN"; then
77 if test -z "$MAKE"; then
78 dnl Call the variable MAKE_PROG, not MAKE, to avoid confusion with
79 dnl the usual MAKE variable that 'make' itself uses.
80 AC_CHECK_PROG([MAKE_PROG], [make], [yes])
81 if test -z "$MAKE_PROG"; then
84 xcsdkdir=`$XCRUN --show-sdk-path 2>/dev/null`
89 dnl GNU Make is required, so don't test for its individual features.
90 am_cv_make_support_nested_variables=yes
91 AC_DEFUN([AC_PROG_MAKE_SET],
93 AC_SUBST([SET_MAKE])])
95 dnl Check for GNU Make and possibly set MAKE before running AM_INIT_AUTOMAKE.
96 [emacs_check_gnu_make ()
98 emacs_makeout=`($1 --version) 2>/dev/null` &&
99 case $emacs_makeout in
100 'GNU Make '3.8[1-9]* | 'GNU Make '3.9[0-9]* | \
101 'GNU Make '3.[1-9][0-9][0-9]* | 'GNU Make '[4-9]* | 'GNU Make '[1-9][0-9]* )
102 ac_path_MAKE_found=:;;
105 AC_CACHE_CHECK([for GNU Make], [ac_cv_path_MAKE],
106 [ac_path_MAKE_found=false
107 if test -n "$MAKE"; then
108 emacs_check_gnu_make "$MAKE"
109 ac_cv_path_MAKE=$MAKE
111 emacs_tried_make=false
112 emacs_tried_gmake=false
113 emacs_tried_gnumake=false
114 AC_PATH_PROGS_FEATURE_CHECK([MAKE], [make gmake gnumake],
115 [[emacs_check_gnu_make "$ac_path_MAKE"
116 if $ac_path_MAKE_found; then
117 # Use the fully-qualified program name only if the basename
118 # would not resolve to it.
119 if eval \$emacs_tried_$ac_prog; then
120 ac_cv_path_MAKE=$ac_path_MAKE
122 ac_cv_path_MAKE=$ac_prog
125 eval emacs_tried_$ac_prog=:]])
127 $ac_path_MAKE_found || {
128 AC_MSG_ERROR([[Building Emacs requires GNU Make, at least version 3.81.
129 If you have it installed under another name, configure with 'MAKE=...'.
130 For example, run '$0 MAKE=gnu-make'.]])
132 MAKE=$ac_cv_path_MAKE
135 dnl Fairly arbitrary, older versions might work too.
136 AM_INIT_AUTOMAKE(1.11)
138 dnl Canonicalize the configuration name.
144 if test -z "$host_alias"; then
146 # No --host argument was given to 'configure'; therefore $host
147 # was set to a default value based on the build platform. But
148 # this default value may be wrong if we are building from a
149 # 64-bit MSYS[2] pre-configured to build 32-bit MinGW programs.
150 # Therefore, we'll try to get the right host platform from the
153 AC_MSG_CHECKING([the compiler's target])
154 if test -z "$CC"; then
159 cc_target=`$cc -v 2>&1 | sed -n 's/Target: //p'`
163 "") AC_MSG_ERROR([Impossible to obtain $cc compiler target.
164 Please explicitly provide --host.])
166 *) AC_MSG_WARN([Compiler reported non-standard target.
167 Defaulting to $host.])
170 AC_MSG_RESULT([$host])
173 . $srcdir/nt/mingw-cfg.site
177 # srcdir is an absolute path. In this case, force the format
178 # "/c/foo/bar", to simplify later conversions to native Windows
179 # format ("c:/foo/bar").
180 srcdir=`cd "${srcdir}" && pwd -W`
181 # 'eval' pacifies strict POSIX non-MinGW shells (Bug#18612).
182 eval 'srcdir="/${srcdir:0:1}${srcdir:2}"'
188 configuration=${host_alias-${build_alias-$host}}
190 dnl Support for --program-prefix, --program-suffix and
191 dnl --program-transform-name options
194 dnl It is important that variables on the RHS not be expanded here,
195 dnl hence the single quotes. This is per the GNU coding standards, see
196 dnl (autoconf) Installation Directory Variables
197 dnl See also epaths.h below.
198 lispdir='${datadir}/emacs/${version}/lisp'
199 standardlisppath='${lispdir}'
200 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
201 '${datadir}/emacs/site-lisp'
202 lisppath='${locallisppath}:${standardlisppath}'
203 etcdir='${datadir}/emacs/${version}/etc'
204 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
205 etcdocdir='${datadir}/emacs/${version}/etc'
206 gamedir='${localstatedir}/games/emacs'
208 dnl Special option to disable the most of other options.
210 [AS_HELP_STRING([--without-all],
211 [omit almost all features and build
212 small executable with minimal dependencies])],
213 [with_features=$withval],
216 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
217 dnl Create a new --with option that defaults to being disabled.
218 dnl NAME is the base name of the option. The shell variable with_NAME
219 dnl will be set to either the user's value (if the option is
220 dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
221 dnl option is not specified). Note that the shell variable name is
222 dnl constructed as autoconf does, by replacing non-alphanumeric
223 dnl characters with "_".
224 dnl HELP-STRING is the help text for the option.
225 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
226 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
227 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
230 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
231 dnl Create a new --with option that defaults to $with_features.
232 dnl NAME is the base name of the option. The shell variable with_NAME
233 dnl will be set either to 'no' (for a plain --without-NAME) or to
234 dnl 'yes' (if the option is not specified). Note that the shell
235 dnl variable name is constructed as autoconf does, by replacing
236 dnl non-alphanumeric characters with "_".
237 dnl HELP-STRING is the help text for the option.
238 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
239 AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
240 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=$with_features])dnl
243 OPTION_DEFAULT_ON([pop],[don't support POP mail retrieval with movemail])
244 if test "$with_pop" = yes; then
245 AC_DEFINE(MAIL_USE_POP)
247 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
249 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
250 if test "$with_kerberos" != no; then
253 AH_TEMPLATE(KERBEROS,
254 [Define to support Kerberos-authenticated POP mail retrieval.])dnl
256 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
257 if test "${with_kerberos5}" != no; then
258 if test "${with_kerberos}" = no; then
262 AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
265 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
266 dnl FIXME hesiod support may not be present, so it seems like an error
267 dnl to define, or at least use, this unconditionally.
268 if test "$with_hesiod" != no; then
269 AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
272 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
273 if test "$with_mail_unlink" != no; then
274 AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
277 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
278 [string giving default POP mail host])],
279 AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
281 AC_ARG_WITH([sound],[AS_HELP_STRING([--with-sound=VALUE],
282 [compile with sound support (VALUE one of: yes, alsa, oss, bsd-ossaudio, no;
283 default yes). Only for GNU/Linux, FreeBSD, NetBSD, MinGW, Cygwin.])],
284 [ case "${withval}" in
285 yes|no|alsa|oss|bsd-ossaudio) val=$withval ;;
286 *) AC_MSG_ERROR(['--with-sound=$withval' is invalid;
287 this option's value should be 'yes', 'no', 'alsa', 'oss', or 'bsd-ossaudio'.])
292 [with_sound=$with_features])
294 dnl FIXME currently it is not the last.
295 dnl This should be the last --with option, because --with-x is
296 dnl added later on when we find the file name of X, and it's best to
297 dnl keep them together visually.
298 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
299 [use an X toolkit (KIT one of: yes or gtk, gtk2, gtk3, lucid or athena, motif, no)])],
300 [ case "${withval}" in
301 y | ye | yes ) val=gtk ;;
303 l | lu | luc | luci | lucid ) val=lucid ;;
304 a | at | ath | athe | athen | athena ) val=athena ;;
305 m | mo | mot | moti | motif ) val=motif ;;
306 g | gt | gtk ) val=gtk ;;
310 AC_MSG_ERROR(['--with-x-toolkit=$withval' is invalid;
311 this option's value should be 'yes', 'no', 'lucid', 'athena', 'motif', 'gtk',
312 'gtk2' or 'gtk3'. 'yes' and 'gtk' are synonyms.
313 'athena' and 'lucid' are synonyms.])
319 OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit); allows buffer and string size up to 2GB on 32-bit hosts, at the cost of 10% to 30% slowdown of Lisp interpreter and larger memory footprint])
320 if test "$with_wide_int" = yes; then
321 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
324 dnl _ON results in a '--without' option in the --help output, so
325 dnl the help text should refer to "don't compile", etc.
326 with_xpm_set=${with_xpm+set}
327 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
328 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
329 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
330 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
331 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
332 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
333 OPTION_DEFAULT_ON([libsystemd],[don't compile with libsystemd support])
334 OPTION_DEFAULT_OFF([cairo],[compile with Cairo drawing (experimental)])
335 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
336 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
338 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
339 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
340 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
342 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
343 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
344 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
345 AC_ARG_WITH([ns],[AS_HELP_STRING([--with-ns],
346 [use Nextstep (OS X Cocoa or GNUstep) windowing system.
347 On by default on Mac OS X.])],[],[with_ns=maybe])
348 OPTION_DEFAULT_OFF([w32], [use native MS Windows GUI in a Cygwin build])
350 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
351 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
352 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
353 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
354 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
355 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
356 OPTION_DEFAULT_ON([zlib],[don't compile with zlib decompression support])
357 OPTION_DEFAULT_OFF([modules],[compile with dynamic modules support])
359 AC_ARG_WITH([file-notification],[AS_HELP_STRING([--with-file-notification=LIB],
360 [use a file notification library (LIB one of: yes, inotify, kqueue, gfile, w32, no)])],
361 [ case "${withval}" in
362 y | ye | yes ) val=yes ;;
364 i | in | ino | inot | inoti | inotif | inotify ) val=inotify ;;
365 k | kq | kqu | kque | kqueu | kqueue ) val=kqueue ;;
366 g | gf | gfi | gfil | gfile ) val=gfile ;;
367 w | w3 | w32 ) val=w32 ;;
368 * ) AC_MSG_ERROR(['--with-file-notification=$withval' is invalid;
369 this option's value should be 'yes', 'no', 'inotify', 'kqueue', 'gfile' or 'w32'.
370 'yes' is a synonym for 'w32' on MS-Windows, for 'no' on Nextstep,
371 otherwise for the first of 'inotify', 'kqueue' or 'gfile' that is usable.])
374 with_file_notification=$val
376 [with_file_notification=$with_features])
378 OPTION_DEFAULT_OFF([xwidgets],
379 [enable use of some gtk widgets in Emacs buffers (requires gtk3)])
381 ## For the times when you want to build Emacs but don't have
382 ## a suitable makeinfo, and can live without the manuals.
383 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
384 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
386 ## This might be a 'configure' arg.
387 AC_SUBST([ACLOCAL_PATH])
389 ## Makefile.in needs the cache file name.
392 ## This is an option because I do not know if all info/man support
393 ## compressed files, nor how to test if they do so.
394 OPTION_DEFAULT_ON([compress-install],
395 [don't compress some files (.el, .info, etc.) when installing. Equivalent to:
396 make GZIP_PROG= install])
398 AC_ARG_WITH(gameuser,dnl
399 [AS_HELP_STRING([--with-gameuser=USER_OR_GROUP],
400 [user for shared game score files.
401 An argument prefixed by ':' specifies a group instead.])])
404 # We don't test if we can actually chown/chgrp here, because configure
405 # may run without root privileges. lib-src/Makefile.in will handle
406 # any errors due to missing user/group gracefully.
407 case ${with_gameuser} in
409 "" | yes) gamegroup=games ;;
410 :*) gamegroup=${with_gameuser#:} ;;
411 *) gameuser=${with_gameuser} ;;
414 AC_ARG_WITH([gnustep-conf],dnl
415 [AS_HELP_STRING([--with-gnustep-conf=FILENAME],
416 [name of GNUstep configuration file to use on systems where the command
417 'gnustep-config' does not work; default $GNUSTEP_CONFIG_FILE, or
418 /etc/GNUstep/GNUstep.conf])])
419 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
420 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
421 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
422 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
424 AC_ARG_ENABLE(ns-self-contained,
425 [AS_HELP_STRING([--disable-ns-self-contained],
426 [disable self contained build under NeXTstep])],
427 EN_NS_SELF_CONTAINED=$enableval,
428 EN_NS_SELF_CONTAINED=yes)
431 AC_ARG_ENABLE(locallisppath,
432 [AS_HELP_STRING([--enable-locallisppath=PATH],
433 [directories Emacs should search for lisp files specific
435 if test "${enableval}" = "no"; then
437 elif test "${enableval}" != "yes"; then
438 locallisppath=${enableval} locallisppathset=yes
441 AC_ARG_ENABLE(checking,
442 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
443 [enable expensive run-time checks. With LIST,
444 enable only specific categories of checks.
445 Categories are: all,yes,no.
446 Flags are: stringbytes, stringoverrun, stringfreelist,
447 xmallocoverrun, conslist, glyphs])],
448 [ac_checking_flags="${enableval}"],[])
449 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
450 for check in $ac_checking_flags
453 # these set all the flags to specific states
454 yes) ac_enable_checking=1 ;;
455 no) ac_enable_checking= ;
456 ac_gc_check_stringbytes= ;
457 ac_gc_check_string_overrun= ;
458 ac_gc_check_string_free_list= ;
459 ac_xmalloc_overrun= ;
460 ac_gc_check_cons_list= ;
462 all) ac_enable_checking=1 ;
463 ac_gc_check_stringbytes=1 ;
464 ac_gc_check_string_overrun=1 ;
465 ac_gc_check_string_free_list=1 ;
466 ac_xmalloc_overrun=1 ;
467 ac_gc_check_cons_list=1 ;
469 # these enable particular checks
470 stringbytes) ac_gc_check_stringbytes=1 ;;
471 stringoverrun) ac_gc_check_string_overrun=1 ;;
472 stringfreelist) ac_gc_check_string_free_list=1 ;;
473 xmallocoverrun) ac_xmalloc_overrun=1 ;;
474 conslist) ac_gc_check_cons_list=1 ;;
475 glyphs) ac_glyphs_debug=1 ;;
476 *) AC_MSG_ERROR(unknown check category $check) ;;
481 if test x$ac_enable_checking != x ; then
482 AC_DEFINE(ENABLE_CHECKING, 1,
483 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
485 if test x$ac_gc_check_stringbytes != x ; then
486 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
487 [Define this temporarily to hunt a bug. If defined, the size of
488 strings is redundantly recorded in sdata structures so that it can
489 be compared to the sizes recorded in Lisp strings.])
491 if test x$ac_gc_check_string_overrun != x ; then
492 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
493 [Define this to check for short string overrun.])
495 if test x$ac_gc_check_string_free_list != x ; then
496 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
497 [Define this to check the string free list.])
499 if test x$ac_xmalloc_overrun != x ; then
500 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
501 [Define this to check for malloc buffer overrun.])
503 if test x$ac_gc_check_cons_list != x ; then
504 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
505 [Define this to check for errors in cons list.])
507 if test x$ac_glyphs_debug != x ; then
508 AC_DEFINE(GLYPH_DEBUG, 1,
509 [Define this to enable glyphs debugging code.])
512 AC_ARG_ENABLE(check-lisp-object-type,
513 [AS_HELP_STRING([--enable-check-lisp-object-type],
514 [enable compile time checks for the Lisp_Object data type.
515 This is useful for development for catching certain types of bugs.])],
516 if test "${enableval}" != "no"; then
517 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
518 [Define this to enable compile time checks for the Lisp_Object data type.])
522 dnl The name of this option is unfortunate. It predates, and has no
523 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
524 dnl Actually, it stops it working.
525 dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
526 AC_ARG_ENABLE(profiling,
527 [AS_HELP_STRING([--enable-profiling],
528 [build emacs with low-level, gprof profiling support.
529 Mainly useful for debugging Emacs itself. May not work on
530 all platforms. Stops profiler.el working.])],
531 [ac_enable_profiling="${enableval}"],[])
532 if test x$ac_enable_profiling != x ; then
533 PROFILING_CFLAGS="-DPROFILING=1 -pg"
537 AC_SUBST(PROFILING_CFLAGS)
539 AC_ARG_ENABLE(autodepend,
540 [AS_HELP_STRING([--enable-autodepend],
541 [automatically generate dependencies to .h-files.
542 Requires gcc, enabled if found.])],
543 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
545 AC_ARG_ENABLE(gtk-deprecation-warnings,
546 [AS_HELP_STRING([--enable-gtk-deprecation-warnings],
547 [Show Gtk+/Gdk deprecation warnings for Gtk+ >= 3.0])],
548 [ac_enable_gtk_deprecation_warnings="${enableval}"],[])
551 AC_ARG_ENABLE([build-details],
552 [AS_HELP_STRING([--disable-build-details],
553 [Make the build more deterministic by omitting host
554 names, time stamps, etc. from the output.])],
555 [test "$enableval" = no && BUILD_DETAILS=--no-build-details])
556 AC_SUBST([BUILD_DETAILS])
558 dnl This used to use changequote, but, apart from 'changequote is evil'
559 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
560 dnl the great gob of text. Thus it's not processed for possible expansion.
561 dnl Just make sure the brackets remain balanced.
563 dnl Since Emacs can't find matching pairs of quotes, boundaries are
564 dnl indicated by comments.
568 ### If you add support for a new configuration, add code to this
569 ### switch statement to recognize your configuration name and select
570 ### the appropriate opsys.
572 ### As far as handling version numbers on operating systems is
573 ### concerned, make sure things will fail in a fixable way. If
574 ### /etc/MACHINES doesn't say anything about version numbers, be
575 ### prepared to handle anything reasonably. If version numbers
576 ### matter, be sure /etc/MACHINES says something about it.
579 case "${canonical}" in
581 ## GNU/Linux and similar ports
596 ## FreeBSD kernel + glibc based userland
607 *-*-openbsd* | *-*-mirbsd* )
611 ## Apple Darwin / Mac OS X
613 case "${canonical}" in
614 *-apple-darwin[0-9].*) unported=yes ;;
615 i[3456]86-* | x86_64-* ) ;;
619 ## FIXME: Find a way to use Fink if available (Bug#11507).
622 ## Chromium Native Client
632 ## HP 9000 series 700 and 800, running HP/UX
636 hppa*-hp-hpux1[1-9]* )
638 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
642 rs6000-ibm-aix4.[23]* )
645 powerpc-ibm-aix4.[23]* )
648 rs6000-ibm-aix[56]* )
651 powerpc-ibm-aix[5-9]* | powerpc-ibm-aix[1-9][0-9]* )
657 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
658 | x86_64-*-solaris2* | x86_64-*-sunos5*)
659 case "${canonical}" in
661 amd64-*-*|x86_64-*-*) ;;
665 case "${canonical}" in
666 *-sunos5.[1-9][0-9]* | *-solaris2.[1-9][0-9]* )
668 emacs_check_sunpro_c=yes
670 *-sunos5.[1-5]* | *-solaris2.[1-5]* ) unported=yes ;;
671 ## Note that Emacs 23.1's NEWS said the following would be dropped.
672 *-sunos5.6* | *-solaris2.6* )
676 ## 5.7 EOL Aug 2008, 5.8 EOL Mar 2012.
677 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
679 emacs_check_sunpro_c=yes
682 ## Watch out for a compiler that we know will not work.
683 case "${canonical}" in
684 *-solaris* | *-sunos5* )
685 if [ "x$CC" = x/usr/ucb/cc ]; then
686 ## /usr/ucb/cc doesn't work;
687 ## we should find some other compiler that does work.
695 ## Intel 386 machines where we don't care about the manufacturer.
697 case "${canonical}" in
698 *-darwin* ) opsys=darwin ;;
701 # MinGW overrides and adds some system headers in nt/inc.
702 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
704 *-sysv4.2uw* ) opsys=unixware ;;
705 *-sysv5uw* ) opsys=unixware ;;
706 *-sysv5OpenUNIX* ) opsys=unixware ;;
707 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
713 case "${canonical}" in
716 # MinGW overrides and adds some system headers in nt/inc.
717 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
719 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
728 ### If the code above didn't choose an operating system, just choose
729 ### an operating system based on the configuration name. You really
730 ### only want to use this when you have no idea what the right
731 ### operating system is; if you know what operating systems a machine
732 ### runs, it's cleaner to make it explicit in the case statement
734 if test x"${opsys}" = x; then
735 case "${canonical}" in
736 *-gnu* ) opsys=gnu ;;
746 if test $unported = yes; then
747 AC_MSG_ERROR([Emacs does not support '${canonical}' systems.
748 If you think it should, please send a report to ${PACKAGE_BUGREPORT}.
749 Check 'etc/MACHINES' for recognized configuration names.])
752 #### Choose a compiler.
754 dnl Don't bother to test for C89.
755 AC_DEFUN([_AC_PROG_CC_C89], [$2])
757 dnl Sets GCC=yes if using gcc.
758 AC_PROG_CC([gcc cc cl clang "$XCRUN gcc" "$XCRUN clang"])
759 if test -n "$XCRUN"; then
760 AC_CHECK_PROGS(AR, [ar "$XCRUN ar"])
761 test -n "$AR" && export AR
764 dnl Emacs needs C99 or later.
769 if test x$GCC = xyes; then
770 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
773 dnl This is used in lib/Makefile.am to use nt/gnulib.mk, the
774 dnl alternative to lib/gnulib.mk, so as to avoid generating header files
775 dnl that clash with MinGW.
776 AM_CONDITIONAL([BUILDING_FOR_WINDOWSNT], [test "x$opsys" = "xmingw32"])
778 # Avoid gnulib's tests for -lcrypto, so that there's no static dependency on it.
779 AC_DEFUN([gl_CRYPTO_CHECK])
780 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
781 # as we don't use them.
782 AC_DEFUN([gl_FCNTL_O_FLAGS])
783 # Avoid gnulib's test for pthread_sigmask.
785 for func in $ac_func_list; do
786 test $func = pthread_sigmask || AS_VAR_APPEND([funcs], [" $func"])
789 # Use the system putenv even if it lacks GNU features, as we don't need them,
790 # and the gnulib replacement runs afoul of a FreeBSD 10.1 bug; see Bug#19874.
791 AC_CHECK_FUNCS_ONCE([putenv])
792 AC_DEFUN([gl_FUNC_PUTENV],
793 [test "$ac_cv_func_putenv" = yes || REPLACE_PUTENV=1])
795 # Initialize gnulib right after choosing the compiler.
796 dnl Amongst other things, this sets AR and ARFLAGS.
799 if test "$ac_test_CFLAGS" != set; then
800 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
801 # if -g3 works and the user does not specify CFLAGS.
802 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
805 emacs_g3_CFLAGS='-g3';;
807 emacs_g3_CFLAGS='-g3 -O2';;
811 if test -n "$emacs_g3_CFLAGS"; then
812 emacs_save_CFLAGS=$CFLAGS
813 CFLAGS=$emacs_g3_CFLAGS
814 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
815 [emacs_cv_prog_cc_g3],
816 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
817 [emacs_cv_prog_cc_g3=yes],
818 [emacs_cv_prog_cc_g3=no])])
819 if test $emacs_cv_prog_cc_g3 != yes; then
820 CFLAGS=$emacs_save_CFLAGS
822 if test $opsys = mingw32; then
823 CFLAGS="$CFLAGS -gdwarf-2"
830 # No optimization flag was inferred for this non-GCC compiler.
831 # Try -O. This is needed for xlc on AIX; see Bug#14258.
832 emacs_save_CFLAGS=$CFLAGS
833 test -z "$CFLAGS" || CFLAGS="$CFLAGS "
835 AC_CACHE_CHECK([whether $CC accepts -O],
836 [emacs_cv_prog_cc_o],
837 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
838 [emacs_cv_prog_cc_o=yes],
839 [emacs_cv_prog_cc_o=no])])
840 if test $emacs_cv_prog_cc_o != yes; then
841 CFLAGS=$emacs_save_CFLAGS
846 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
847 # ---------------------------------------------------------------------------
848 # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
849 # Otherwise, run RUN-IF-NOT-FOUND.
850 AC_DEFUN([gl_GCC_VERSION_IFELSE],
854 #if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
857 # error "your version of gcc is older than $1.$2"
864 AC_ARG_ENABLE([gcc-warnings],
865 [AS_HELP_STRING([--enable-gcc-warnings@<:@=TYPE@:>@],
866 [control generation of GCC warnings. The TYPE 'yes'
867 means to fail if any warnings are issued; 'warn-only'
868 means issue warnings without failing (default for
869 developer builds); 'no' means disable warnings
870 (default for non-developer builds).])],
873 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
875 gl_gcc_warnings=$enableval],
876 [# By default, use 'warn-only' if it looks like the invoker of 'configure'
877 # is a developer as opposed to a builder. This is most likely true
878 # if GCC is recent enough and there is a .git directory or file;
879 # however, if there is also a .tarball-version file it is probably
880 # just a release imported into Git for patch management.
882 if test -e "$srcdir"/.git && test ! -f "$srcdir"/.tarball-version; then
883 gl_GCC_VERSION_IFELSE([5], [3], [gl_gcc_warnings=warn-only])]
887 # clang is unduly picky about some things.
888 AC_CACHE_CHECK([whether the compiler is clang], [emacs_cv_clang],
895 [emacs_cv_clang=yes],
896 [emacs_cv_clang=no])])
898 # When compiling with GCC, prefer -isystem to -I when including system
899 # include files, to avoid generating useless diagnostics for the files.
900 AS_IF([test $gl_gcc_warnings = no],
903 AS_IF([test "$emacs_cv_clang" = yes],
905 # Turn off some warnings if supported.
906 gl_WARN_ADD([-Wno-switch])
907 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
908 gl_WARN_ADD([-Wno-pointer-sign])
909 gl_WARN_ADD([-Wno-string-plus-int])
910 gl_WARN_ADD([-Wno-unknown-attributes])
915 # This, $nw, is the list of warnings we disable.
918 case $with_x_toolkit in
919 lucid | athena | motif)
920 # Old toolkits mishandle 'const'.
921 nw="$nw -Wwrite-strings"
924 AS_IF([test $gl_gcc_warnings = yes],
925 [gl_WARN_ADD([-Werror], [WERROR_CFLAGS])])
926 AC_SUBST([WERROR_CFLAGS])
928 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
929 nw="$nw -Woverlength-strings" # Not a problem these days
930 nw="$nw -Wformat-nonliteral" # we do this a lot
931 nw="$nw -Wvla" # Emacs uses <vla.h>.
932 nw="$nw -Wswitch-default" # Too many warnings for now
933 nw="$nw -Wunused-const-variable=2" # lisp.h declares const objects.
934 nw="$nw -Winline" # OK to ignore 'inline'
935 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
936 # signed overflow has undefined behavior
937 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
938 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
939 nw="$nw -Wbad-function-cast" # These casts are no worse than others.
941 # Emacs doesn't care about shadowing; see
942 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
945 # Emacs's use of alloca inhibits protecting the stack.
946 nw="$nw -Wstack-protector"
948 # Emacs's use of partly-const functions such as Fgnutls_available_p
949 # make this option problematic.
950 nw="$nw -Wsuggest-attribute=const"
952 # Emacs's use of partly-pure functions such as CHECK_TYPE make this
953 # option problematic.
954 nw="$nw -Wsuggest-attribute=pure"
956 # This part is merely for shortening the command line,
957 # since -Wall implies -Wswitch.
960 # This part is merely for shortening the command line,
961 # since -Wno-FOO needs to be added below regardless.
962 nw="$nw -Wmissing-field-initializers"
963 nw="$nw -Wtype-limits"
964 nw="$nw -Wunused-parameter"
966 if test $emacs_cv_clang = yes; then
967 nw="$nw -Wcast-align"
970 # This causes too much noise in the MinGW build
971 if test $opsys = mingw32; then
972 nw="$nw -Wpointer-sign"
975 gl_MANYWARN_ALL_GCC([ws])
976 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
980 gl_WARN_ADD([-Wredundant-decls]) # Prefer this, as we don't use Bison.
981 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
982 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
983 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
984 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
985 gl_WARN_ADD([-Wno-format-nonliteral])
987 # More things that clang is unduly picky about.
988 if test $emacs_cv_clang = yes; then
989 gl_WARN_ADD([-Wno-tautological-compare])
990 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
993 # This causes too much noise in the MinGW build
994 if test $opsys = mingw32; then
995 gl_WARN_ADD([-Wno-pointer-sign])
998 AC_DEFINE([GCC_LINT], [1], [Define to 1 if --enable-gcc-warnings.])
999 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
1000 AH_VERBATIM([GNULIB_PORTCHECK_FORTIFY_SOURCE],
1001 [/* Enable compile-time and run-time bounds-checking, and some warnings,
1002 without upsetting glibc 2.15+. */
1003 #if (defined GNULIB_PORTCHECK && !defined _FORTIFY_SOURCE \
1004 && defined __OPTIMIZE__ && __OPTIMIZE__)
1005 # define _FORTIFY_SOURCE 2
1009 # We use a slightly smaller set of warning options for lib/.
1010 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
1012 nw="$nw -Wunused-macros"
1014 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
1015 AC_SUBST([GNULIB_WARN_CFLAGS])
1025 AC_ARG_ENABLE(link-time-optimization,
1026 [AS_HELP_STRING([--enable-link-time-optimization],
1027 [build emacs with link-time optimization.
1028 This requires GCC 4.5.0 or later, or clang.
1029 (Note that clang support is experimental - see INSTALL.)
1030 It also makes Emacs harder to debug, and when we tried it
1031 with GCC 4.9.0 x86-64 it made Emacs slower, so it's not
1032 recommended for typical use.])],
1033 if test "${enableval}" != "no"; then
1035 if test $emacs_cv_clang = yes; then
1036 AC_MSG_CHECKING([whether link-time optimization is supported by clang])
1037 GOLD_PLUGIN=`$CC -print-file-name=LLVMgold.so 2>/dev/null`
1038 if test -x "$GOLD_PLUGIN"; then
1041 elif test x$GCC = xyes; then
1042 AC_MSG_CHECKING([whether link-time optimization is supported by gcc])
1043 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
1044 if test x$CPUS != x; then
1050 AC_MSG_ERROR([Link-time optimization is not supported with your compiler.])
1052 if test -z "$LTO"; then
1056 CFLAGS="$CFLAGS $LTO"
1057 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1058 [ac_lto_supported=yes], [ac_lto_supported=no])
1059 CFLAGS="$old_CFLAGS"
1061 AC_MSG_RESULT([$ac_lto_supported])
1062 if test "$ac_lto_supported" = "yes"; then
1063 CFLAGS="$CFLAGS $LTO"
1064 if test x$emacs_cv_clang = xyes; then
1065 AC_MSG_WARN([Please read INSTALL before using link-time optimization with clang])
1066 # WARNING: 'ar --plugin ...' doesn't work without
1067 # command, so plugin name is appended to ARFLAGS.
1068 ARFLAGS="cru --plugin $GOLD_PLUGIN"
1069 RANLIB="$RANLIB --plugin $GOLD_PLUGIN"
1071 dnl The following is needed for GCC 4.9.0. The GCC 4.9.0 release notes
1072 dnl suggest that instead of -ffat-lto-objects we should use gcc-ar and
1073 dnl gcc-ranlib in place of ar and ranlib, but gcc-ar makes /usr/bin/ar
1074 dnl dump core on Fedora 20, so play it safe for now.
1075 gl_COMPILER_OPTION_IF([-ffat-lto-objects],
1076 [CFLAGS="$CFLAGS -ffat-lto-objects"])
1081 dnl Prefer silent make output. For verbose output, use
1082 dnl 'configure --disable-silent-rules' or 'make V=1' .
1083 AM_SILENT_RULES([yes])
1084 dnl Port to Automake 1.11.
1085 dnl This section can be removed once we assume Automake 1.14 or later.
1086 : ${AM_V=$AM_DEFAULT_VERBOSITY}
1087 : ${AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY}
1089 AM_SUBST_NOTMAKE([AM_V])
1090 AC_SUBST([AM_DEFAULT_V])
1091 AM_SUBST_NOTMAKE([AM_DEFAULT_V])
1092 AC_SUBST([AM_DEFAULT_VERBOSITY])
1094 dnl Some other nice autoconf tests.
1095 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
1098 dnl if test "x$RANLIB" = x; then
1103 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
1104 dnl can be made to directories. This is not relevant for our usage, and
1105 dnl excludes some cases that work fine for us. Eg MS Windows or files
1106 dnl hosted on AFS, both examples where simple links work, but links to
1107 dnl directories fail. We use a cut-down version instead.
1110 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
1111 rm -f conf$$ conf$$.file
1113 LN_S_FILEONLY='cp -p'
1115 dnl On MinGW, ensure we will call the MSYS /bin/ln.exe, not some
1116 dnl random program in the current directory.
1117 if (echo >conf$$.file) 2>/dev/null; then
1118 if ln -s conf$$.file conf$$ 2>/dev/null; then
1119 if test "$opsys" = "mingw32"; then
1120 LN_S_FILEONLY='/bin/ln -s'
1122 LN_S_FILEONLY='ln -s'
1124 elif ln conf$$.file conf$$ 2>/dev/null; then
1125 if test "$opsys" = "mingw32"; then
1126 LN_S_FILEONLY=/bin/ln
1133 rm -f conf$$ conf$$.file
1135 if test "$LN_S_FILEONLY" = "ln -s"; then
1136 AC_MSG_RESULT([yes])
1138 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
1141 AC_SUBST(LN_S_FILEONLY)
1144 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
1145 dnl doesn't support links to directories, as in "ln file dir". But that
1146 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
1147 dnl executables at "make install" time.
1148 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
1149 dnl for more details.
1150 if test "$opsys" = "mingw32"; then
1154 dnl On some Debian versions, "install-info" prints irritating messages
1155 dnl "This is not dpkg install-info anymore, but GNU install-info"
1156 dnl if called via an absolute file name.
1157 dnl Use the entirely-identical-but-quieter ginstall-info instead if present.
1158 dnl Sadly some people may have an old ginstall-info installed on
1159 dnl non-Debian systems, so we can't use this.
1160 dnl AC_PATH_PROGS(INSTALL_INFO, [ginstall-info install-info], :,
1161 dnl $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1163 AC_PATH_PROG(INSTALL_INFO, install-info, :,
1164 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1165 dnl Don't use GZIP, which is used by gzip for additional parameters.
1166 AC_PATH_PROG(GZIP_PROG, gzip)
1168 test $with_compress_install != yes && test -n "$GZIP_PROG" && \
1169 GZIP_PROG=" # $GZIP_PROG # (disabled by configure --without-compress-install)"
1173 if test $opsys = gnu-linux; then
1174 if test "${SETFATTR+set}" != set; then
1175 AC_CACHE_CHECK([for setfattr],
1176 [emacs_cv_prog_setfattr],
1178 if (setfattr -n user.pax.flags conftest.tmp) >/dev/null 2>&1; then
1179 emacs_cv_prog_setfattr=yes
1181 emacs_cv_prog_setfattr=no
1183 if test "$emacs_cv_prog_setfattr" = yes; then
1184 PAXCTL_notdumped='$(SETFATTR) -n user.pax.flags -v er'
1190 AC_SUBST([SETFATTR])
1193 case $opsys,$PAXCTL_notdumped in
1194 gnu-linux, | netbsd,)
1195 AC_PATH_PROG([PAXCTL], [paxctl], [],
1196 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
1197 if test -n "$PAXCTL"; then
1198 if test "$opsys" = netbsd; then
1199 PAXCTL_dumped='$(PAXCTL) +a'
1200 PAXCTL_notdumped=$PAXCTL_dumped
1202 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
1203 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1204 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then
1205 AC_MSG_RESULT([yes])
1210 if test -n "$PAXCTL"; then
1211 PAXCTL_dumped='$(PAXCTL) -zex'
1212 PAXCTL_notdumped='$(PAXCTL) -r'
1217 AC_SUBST([PAXCTL_dumped])
1218 AC_SUBST([PAXCTL_notdumped])
1220 ## Need makeinfo >= 4.7 (?) to build the manuals.
1221 if test "$MAKEINFO" != "no"; then
1222 if test "$MAKEINFO" = "${am_missing_run}makeinfo"; then
1225 case `($MAKEINFO --version) 2>/dev/null` in
1226 *' (GNU texinfo) '4.[[7-9]]* | \
1227 *' (GNU texinfo) '4.[[1-9][0-9]]* | \
1228 *' (GNU texinfo) '[[5-9]]* | \
1229 *' (GNU texinfo) '[[1-9][0-9]]* ) ;;
1234 ## Makeinfo is unusual. For a released Emacs, the manuals are
1235 ## pre-built, and not deleted by the normal clean rules. makeinfo is
1236 ## therefore in the category of "special tools" not normally required, which
1237 ## configure does not have to check for (eg autoconf itself).
1238 ## In a repository checkout on the other hand, the manuals are not included.
1239 ## So makeinfo is a requirement to build from the repository, and configure
1240 ## should test for it as it does for any other build requirement.
1241 ## We use the presence of $srcdir/info/emacs to distinguish a release,
1242 ## with pre-built manuals, from a repository checkout.
1245 if test "$MAKEINFO" = "no"; then
1247 if test "x${with_makeinfo}" = "xno"; then
1249 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
1250 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
1251 source tree does not seem to have pre-built manuals in the 'info' directory.
1252 Either install a suitable version of makeinfo, or re-run configure
1253 with the '--without-makeinfo' option to build without the manuals.] )
1256 AC_SUBST(HAVE_MAKEINFO)
1258 if test $opsys = mingw32; then
1259 DOCMISC_W32=efaq-w32
1263 AC_SUBST(DOCMISC_W32)
1265 dnl Add our options to ac_link now, after it is set up.
1267 if test x$GCC = xyes; then
1268 test "x$GCC_LINK_TEST_OPTIONS" != x && \
1269 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1271 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
1272 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1275 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
1276 dnl If we can link with the flag, it shouldn't do any harm anyhow.
1277 dnl Treat GCC specially since it just gives a non-fatal 'unrecognized option'
1278 dnl if not built to support GNU ld.
1280 dnl For a long time, -znocombreloc was added to LDFLAGS rather than
1281 dnl LD_SWITCH_SYSTEM_TEMACS. That is:
1282 dnl * inappropriate, as LDFLAGS is a user option but this is essential.
1283 dnl Eg "make LDFLAGS=... all" could run into problems,
1284 dnl http://bugs.debian.org/684788
1285 dnl * unnecessary, since temacs is the only thing that actually needs it.
1286 dnl Indeed this is where it was originally, prior to:
1287 dnl http://lists.gnu.org/archive/html/emacs-pretest-bug/2004-03/msg00170.html
1288 late_LDFLAGS="$LDFLAGS"
1289 if test x$GCC = xyes; then
1290 LDFLAGS_NOCOMBRELOC="-Wl,-znocombreloc"
1292 LDFLAGS_NOCOMBRELOC="-znocombreloc"
1295 LDFLAGS="$LDFLAGS $LDFLAGS_NOCOMBRELOC"
1297 AC_MSG_CHECKING([for -znocombreloc])
1298 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1299 [AC_MSG_RESULT(yes)],
1300 LDFLAGS_NOCOMBRELOC=
1301 [AC_MSG_RESULT(no)])
1303 LDFLAGS="$late_LDFLAGS"
1305 AC_CACHE_CHECK([whether addresses are sanitized],
1306 [emacs_cv_sanitize_address],
1309 [[#ifndef __has_feature
1310 #define __has_feature(f) 0
1312 #if defined __SANITIZE_ADDRESS__ || __has_feature (address_sanitizer)
1314 error "Addresses are not sanitized.";
1317 [emacs_cv_sanitize_address=yes],
1318 [emacs_cv_sanitize_address=no])])
1320 dnl The function dump-emacs will not be defined and temacs will do
1321 dnl (load "loadup") automatically unless told otherwise.
1322 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
1324 nacl) CANNOT_DUMP=yes ;;
1327 if test "$CANNOT_DUMP" = "yes"; then
1328 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1329 elif test "$emacs_cv_sanitize_address" = yes; then
1330 AC_MSG_WARN([[Addresses are sanitized; suggest CANNOT_DUMP=yes]])
1333 AC_SUBST(CANNOT_DUMP)
1336 UNEXEC_OBJ=unexelf.o
1338 # MSDOS uses unexcoff.o
1340 UNEXEC_OBJ=unexaix.o
1346 UNEXEC_OBJ=unexmacosx.o
1349 UNEXEC_OBJ=unexhp9k800.o
1352 UNEXEC_OBJ=unexw32.o
1355 # Use the Solaris dldump() function, called from unexsol.c, to dump
1356 # emacs, instead of the generic ELF dump code found in unexelf.c.
1357 # The resulting binary has a complete symbol table, and is better
1358 # for debugging and other observability tools (debuggers, pstack, etc).
1360 # If you encounter a problem using dldump(), please consider sending
1361 # a message to the OpenSolaris tools-linking mailing list:
1362 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1364 # It is likely that dldump() works with older Solaris too, but this has
1365 # not been tested, so for now this change is for Solaris 10 or newer.
1366 UNEXEC_OBJ=unexsol.o
1373 ## Let 'ld' find image libs and similar things in /usr/local/lib.
1374 ## The system compiler, GCC, has apparently been modified to not
1375 ## look there, contrary to what a stock GCC would do.
1376 ### It's not our place to do this. See bug#10313#17.
1377 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1382 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1383 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1387 ### It's not our place to do this. See bug#10313#17.
1388 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1393 ## Han Boetes <han@boetes.org> says this is necessary,
1394 ## otherwise Emacs dumps core on elf systems.
1395 LD_SWITCH_SYSTEM="-Z"
1398 AC_SUBST(LD_SWITCH_SYSTEM)
1400 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1402 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1403 ## which has not been defined yet. When this was handled with cpp,
1404 ## it was expanded to null when configure sourced the s/*.h file.
1405 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1406 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1407 ## (or somesuch), but because it is supposed to go at the _front_
1408 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1409 ## Compare with the gnu-linux case below, which added to the end
1410 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1411 ## LD_SWITCH_SYSTEM_TEMACS.
1414 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1421 AC_CHECK_DECL([__ELF__])
1422 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1423 ## With ELF, make sure that all common symbols get allocated to in the
1424 ## data section. Otherwise, the dump of temacs may miss variables in
1425 ## the shared library that have been initialized. For example, with
1426 ## GNU libc, __malloc_initialized would normally be resolved to the
1427 ## shared library's .bss section, which is fatal.
1428 if test "x$GCC" = "xyes"; then
1429 C_SWITCH_MACHINE="-fno-common"
1431 AC_MSG_ERROR([Non-GCC compilers are not supported.])
1434 dnl This was the unexalpha.c case. Removed in 24.1, 2010-07-24,
1435 dnl albeit under the mistaken assumption that said file
1436 dnl was no longer used.
1437 AC_MSG_ERROR([Non-ELF systems are not supported since Emacs 24.1.])
1441 AC_SUBST(C_SWITCH_MACHINE)
1443 AC_SUBST(UNEXEC_OBJ)
1446 ## Some programs in src produce warnings saying certain subprograms
1447 ## are too complex and need a MAXMEM value greater than 2000 for
1448 ## additional optimization. --nils@exp-math.uni-essen.de
1449 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1450 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1451 if test "$opsys" = "mingw32"; then
1452 case "$canonical" in
1453 x86_64-*-mingw*) C_SWITCH_SYSTEM="-mtune=generic" ;;
1454 *) C_SWITCH_SYSTEM="-mtune=pentium4" ;;
1457 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1458 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1459 AC_SUBST(C_SWITCH_SYSTEM)
1464 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1465 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1467 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1469 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1471 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1473 ## Motif needs -lgen.
1474 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1477 AC_SUBST(LIBS_SYSTEM)
1479 ### Make sure subsequent tests use flags consistent with the build flags.
1481 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1482 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1484 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1487 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C99 or better.
1488 AC_DEFUN([AC_TYPE_SIZE_T])
1489 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1490 AC_DEFUN([AC_TYPE_UID_T])
1492 # sqrt and other floating-point functions such as fmod and frexp
1493 # are found in -lm on many systems.
1495 AC_SEARCH_LIBS([sqrt], [m])
1496 if test "X$LIBS" = "X$OLD_LIBS"; then
1499 LIB_MATH=$ac_cv_search_sqrt
1503 dnl Current possibilities handled by sed (aix4-2 -> aix,
1504 dnl gnu-linux -> gnu/linux, etc.):
1505 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux.
1506 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1507 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1514 ## Adding -lm confuses the dynamic linker, so omit it.
1517 freebsd | dragonfly )
1518 SYSTEM_TYPE=berkeley-unix
1520 gnu-linux | gnu-kfreebsd )
1522 hpux10-20 | hpux11 )
1526 SYSTEM_TYPE=windows-nt
1528 dnl NB this may be adjusted below.
1530 SYSTEM_TYPE=berkeley-unix
1534 SYSTEM_TYPE=usg-unix-v
1540 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1541 [The type of system you are compiling for; sets 'system-type'.])
1544 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1545 pre_PKG_CONFIG_LIBS=$LIBS
1547 PKG_PROG_PKG_CONFIG(0.9.0)
1549 dnl EMACS_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4)
1550 dnl acts like PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4,
1551 dnl HAVE_GSTUFF=yes, HAVE_GSTUFF=no) -- see pkg-config man page --
1552 dnl except that it postprocesses CFLAGS as needed for --enable-gcc-warnings.
1553 dnl EMACS_CHECK_MODULES accepts optional 3rd and 4th arguments that
1554 dnl can take the place of the default HAVE_GSTUFF=yes and HAVE_GSTUFF=no
1556 AC_DEFUN([EMACS_CHECK_MODULES],
1557 [PKG_CHECK_MODULES([$1], [$2],
1558 [$1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1559 m4_default([$3], [HAVE_$1=yes])],
1560 [m4_default([$4], [HAVE_$1=no])])])
1563 if test "${with_sound}" != "no"; then
1564 # Sound support for GNU/Linux, the free BSDs, MinGW, and Cygwin.
1565 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h mmsystem.h],
1566 have_sound_header=yes, [], [
1568 #define WIN32_LEAN_AND_MEAN
1569 #include <windows.h>
1572 test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
1573 AC_MSG_ERROR([OSS sound support requested but not found.])
1575 if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
1576 # Emulation library used on NetBSD.
1577 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1578 test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
1579 AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
1580 dnl FIXME? If we did find ossaudio, should we set with_sound=bsd-ossaudio?
1581 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1585 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1587 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1588 EMACS_CHECK_MODULES([ALSA], [$ALSA_MODULES])
1589 if test $HAVE_ALSA = yes; then
1590 SAVE_CFLAGS="$CFLAGS"
1592 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1593 LIBS="$ALSA_LIBS $LIBS"
1594 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1595 emacs_alsa_normal=yes,
1596 emacs_alsa_normal=no)
1597 if test "$emacs_alsa_normal" != yes; then
1598 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1599 [[snd_lib_error_set_handler (0);]])],
1600 emacs_alsa_subdir=yes,
1601 emacs_alsa_subdir=no)
1602 if test "$emacs_alsa_subdir" != yes; then
1603 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1605 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1608 CFLAGS="$SAVE_CFLAGS"
1610 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1611 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1612 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1613 elif test "${with_sound}" = "alsa"; then
1614 AC_MSG_ERROR([ALSA sound support requested but not found.])
1616 fi dnl with_sound = alsa|yes
1618 dnl Define HAVE_SOUND if we have sound support. We know it works and
1619 dnl compiles only on the specified platforms. For others, it
1620 dnl probably doesn't make sense to try.
1621 dnl FIXME So surely we should bypass this whole section if not using
1622 dnl one of these platforms?
1623 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1625 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1626 dnl Adjust the --with-sound help text if you change this.
1627 gnu-linux|freebsd|netbsd|mingw32|cygwin)
1628 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1634 AC_SUBST(CFLAGS_SOUND)
1637 dnl checks for header files
1638 AC_CHECK_HEADERS_ONCE(
1645 sys/utsname.h pwd.h utmp.h util.h)
1647 AC_CACHE_CHECK([for ADDR_NO_RANDOMIZE],
1648 [emacs_cv_personality_addr_no_randomize],
1650 [AC_LANG_PROGRAM([[#include <sys/personality.h>]],
1651 [[personality (personality (0xffffffff)
1652 | ADDR_NO_RANDOMIZE)]])],
1653 [emacs_cv_personality_addr_no_randomize=yes],
1654 [emacs_cv_personality_addr_no_randomize=no])])
1655 if test $emacs_cv_personality_addr_no_randomize = yes; then
1656 AC_DEFINE([HAVE_PERSONALITY_ADDR_NO_RANDOMIZE], [1],
1657 [Define to 1 if personality flag ADDR_NO_RANDOMIZE exists.])
1660 # Note that Solaris has sys/sysinfo.h which defines struct
1661 # sysinfo as well. To make sure that we're using GNU/Linux
1662 # sysinfo, we explicitly set one of its fields.
1663 if test "$ac_cv_header_sys_sysinfo_h" = yes; then
1664 AC_MSG_CHECKING([if Linux sysinfo may be used])
1665 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1666 [[struct sysinfo si;
1669 emacs_cv_linux_sysinfo=yes, emacs_cv_linux_sysinfo=no)
1670 AC_MSG_RESULT($emacs_cv_linux_sysinfo)
1671 if test $emacs_cv_linux_sysinfo = yes; then
1672 AC_DEFINE([HAVE_LINUX_SYSINFO], 1, [Define to 1 if you have Linux sysinfo function.])
1673 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1674 [[struct sysinfo si; return si.mem_unit]])],
1675 AC_DEFINE(LINUX_SYSINFO_UNIT, 1,
1676 [Define to 1 if Linux sysinfo sizes are in multiples of mem_unit bytes.]))
1680 dnl On Solaris 8 there's a compilation warning for term.h because
1681 dnl it doesn't define 'bool'.
1682 AC_CHECK_HEADERS(term.h, , , -)
1684 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1686 if test $ac_cv_have_decl_sys_siglist != yes; then
1687 # For Tru64, at least:
1688 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1693 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1694 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1695 #if HAVE_SYS_SOCKET_H
1696 #include <sys/socket.h>
1698 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1699 #if HAVE_SYS_SOCKET_H
1700 #include <sys/socket.h>
1702 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1703 #if HAVE_SYS_SOCKET_H
1704 #include <sys/socket.h>
1707 dnl checks for structure members
1708 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1709 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1710 struct ifreq.ifr_addr,
1711 struct ifreq.ifr_addr.sa_len], , ,
1712 [AC_INCLUDES_DEFAULT
1713 #if HAVE_SYS_SOCKET_H
1714 #include <sys/socket.h>
1720 dnl Check for endianness.
1721 dnl AC_C_BIGENDIAN is done by gnulib.
1723 dnl check for Make feature
1726 dnl check if we have GCC and autodepend is on.
1727 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1728 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1729 SAVE_CFLAGS="$CFLAGS"
1730 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1731 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1732 CFLAGS="$SAVE_CFLAGS"
1733 test -f deps.d || ac_enable_autodepend=no
1735 AC_MSG_RESULT([$ac_enable_autodepend])
1736 if test $ac_enable_autodepend = yes; then
1740 AC_SUBST(AUTO_DEPEND)
1742 dnl checks for operating system services
1743 AC_SYS_LONG_FILE_NAMES
1745 #### Choose a window system.
1747 ## We leave window_system equal to none if
1748 ## we end up building without one. Any new window system should
1749 ## set window_system to an appropriate value and add objects to
1750 ## window-system-specific substs.
1754 if test "$no_x" != yes; then
1758 LD_SWITCH_X_SITE_RPATH=
1759 if test "${x_libraries}" != NONE; then
1760 if test -n "${x_libraries}"; then
1761 LD_SWITCH_X_SITE=-L`AS_ECHO(["$x_libraries"]) | sed -e 's/:/ -L/g'`
1762 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`
1763 AS_ECHO(["$x_libraries"]) | sed -e 's/:/ -Wl,-rpath,/g'
1766 x_default_search_path=""
1767 x_search_path=${x_libraries}
1768 if test -z "${x_search_path}"; then
1769 x_search_path=/usr/lib
1771 for x_library in `AS_ECHO(["$x_search_path:"]) | \
1772 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1774 ${x_library}/X11/%L/%T/%N%C%S:\
1775 ${x_library}/X11/%l/%T/%N%C%S:\
1776 ${x_library}/X11/%T/%N%C%S:\
1777 ${x_library}/X11/%L/%T/%N%S:\
1778 ${x_library}/X11/%l/%T/%N%S:\
1779 ${x_library}/X11/%T/%N%S"
1780 if test x"${x_default_search_path}" = x; then
1781 x_default_search_path=${x_search_path}
1783 x_default_search_path="${x_search_path}:${x_default_search_path}"
1787 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1789 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1790 C_SWITCH_X_SITE=$isystem`AS_ECHO(["$x_includes"]) | sed -e "s/:/ $isystem/g"`
1793 if test x"${x_includes}" = x; then
1794 bitmapdir=/usr/include/X11/bitmaps
1796 # accumulate include directories that have X11 bitmap subdirectories
1798 for bmd in `AS_ECHO(["$x_includes"]) | sed -e 's/:/ /g'`; do
1799 if test -d "${bmd}/X11/bitmaps"; then
1800 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1802 if test -d "${bmd}/bitmaps"; then
1803 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1806 bitmapdir=${bmd_acc#:}
1809 test "${with_ns}" = maybe && test "${opsys}" != darwin && with_ns=no
1811 NS_GNUSTEP_CONFIG=no
1814 tmp_CPPFLAGS="$CPPFLAGS"
1815 tmp_CFLAGS="$CFLAGS"
1816 CPPFLAGS="$CPPFLAGS -x objective-c"
1817 CFLAGS="$CFLAGS -x objective-c"
1820 if test "${with_ns}" != no; then
1821 if test "${opsys}" = darwin; then
1823 ns_appdir=`pwd`/nextstep/Emacs.app
1824 ns_appbindir=${ns_appdir}/Contents/MacOS
1825 ns_appresdir=${ns_appdir}/Contents/Resources
1826 ns_appsrc=Cocoa/Emacs.base
1827 ns_fontfile=macfont.o
1828 elif flags=$( (gnustep-config --objc-flags) 2>/dev/null); then
1830 NS_GNUSTEP_CONFIG=yes
1831 GNU_OBJC_CFLAGS=$flags
1832 LIBS_GNUSTEP=$(gnustep-config --gui-libs) || exit
1833 elif test -f $GNUSTEP_CONFIG_FILE; then
1835 dnl FIXME sourcing this several times in subshells seems inefficient.
1836 GNUSTEP_SYSTEM_HEADERS=$(
1837 . $GNUSTEP_CONFIG_FILE
1838 AS_ECHO(["$GNUSTEP_SYSTEM_HEADERS"])
1840 GNUSTEP_SYSTEM_LIBRARIES=$(
1841 . $GNUSTEP_CONFIG_FILE
1842 AS_ECHO(["$GNUSTEP_SYSTEM_LIBRARIES"])
1844 dnl I seemed to need these as well with GNUstep-startup 0.25.
1845 GNUSTEP_LOCAL_HEADERS=$(
1846 . $GNUSTEP_CONFIG_FILE
1847 AS_ECHO(["$GNUSTEP_LOCAL_HEADERS"])
1849 GNUSTEP_LOCAL_LIBRARIES=$(
1850 . $GNUSTEP_CONFIG_FILE
1851 AS_ECHO(["$GNUSTEP_LOCAL_LIBRARIES"])
1853 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1854 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1855 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1856 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1857 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1858 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1859 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1860 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1861 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1862 dnl If they had chosen to either define it or not, we could have
1863 dnl just used AC_CHECK_DECL here.
1864 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1865 emacs_cv_objc_exceptions,
1866 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1867 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1871 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1872 if test $emacs_cv_objc_exceptions = yes; then
1873 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1874 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1875 [Define if GNUstep uses ObjC exceptions.])
1876 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1879 if test $NS_IMPL_GNUSTEP = yes; then
1880 ns_appdir=`pwd`/nextstep/Emacs.app
1881 ns_appbindir=${ns_appdir}
1882 ns_appresdir=${ns_appdir}/Resources
1883 ns_appsrc=GNUstep/Emacs.base
1884 ns_fontfile=nsfont.o
1887 dnl This is only used while we test the NS headers, it gets reset below.
1888 CPPFLAGS="$CPPFLAGS $GNU_OBJC_CFLAGS"
1889 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1891 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1892 [AC_MSG_ERROR([The include files (AppKit/AppKit.h etc) that
1893 are required for a Nextstep build are missing or cannot be compiled.
1894 Either fix this, or re-configure with the option '--without-ns'.])])
1897 if test "${NS_IMPL_COCOA}" = "yes"; then
1898 AC_MSG_CHECKING([for OSX 10.6 or newer])
1899 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1901 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1902 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1060
1905 error "OSX 10.6 or newer required";
1909 ns_osx_have_106=yes,
1911 AC_MSG_RESULT([$ns_osx_have_106])
1913 if test $ns_osx_have_106 = no; then
1914 AC_MSG_ERROR([OSX 10.6 or newer is required]);
1919 AC_SUBST(LIBS_GNUSTEP)
1921 INSTALL_ARCH_INDEP_EXTRA=install-etc
1922 ns_self_contained=no
1925 if test "${HAVE_NS}" = yes; then
1926 if test "$with_toolkit_scroll_bars" = "no"; then
1927 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1930 window_system=nextstep
1931 # set up packaging dirs
1932 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1933 ns_self_contained=yes
1934 prefix=${ns_appresdir}
1935 exec_prefix=${ns_appbindir}
1936 dnl This one isn't really used, only archlibdir is.
1937 libexecdir="\${ns_appbindir}/libexec"
1938 archlibdir="\${ns_appbindir}/libexec"
1939 etcdocdir="\${ns_appresdir}/etc"
1940 etcdir="\${ns_appresdir}/etc"
1941 dnl FIXME maybe set datarootdir instead.
1942 dnl That would also get applications, icons, man.
1943 infodir="\${ns_appresdir}/info"
1944 mandir="\${ns_appresdir}/man"
1945 lispdir="\${ns_appresdir}/lisp"
1946 test "$locallisppathset" = no && locallisppath=""
1947 INSTALL_ARCH_INDEP_EXTRA=
1950 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o $ns_fontfile"
1952 CFLAGS="$tmp_CFLAGS"
1953 CPPFLAGS="$tmp_CPPFLAGS"
1954 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1955 AC_SUBST(ns_self_contained)
1957 AC_SUBST(NS_OBJC_OBJ)
1968 if test "${with_w32}" != no; then
1971 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1972 [AC_MSG_ERROR(['--with-w32' was specified, but windows.h
1973 cannot be found.])])
1976 ## Using --with-w32 with MinGW is a no-op, but we allow it.
1979 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
1984 if test "${opsys}" = "mingw32"; then
1985 AC_MSG_CHECKING([whether Windows API headers are recent enough])
1986 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1987 #include <windows.h>
1988 #include <usp10.h>]],
1989 [[PIMAGE_NT_HEADERS pHeader;
1990 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
1991 [emacs_cv_w32api=yes
1994 AC_MSG_RESULT($emacs_cv_w32api)
1995 if test "${emacs_cv_w32api}" = "no"; then
1996 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
2007 if test "${HAVE_W32}" = "yes"; then
2008 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
2009 if test "$with_toolkit_scroll_bars" = "no"; then
2010 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for w32 build.])
2012 AC_CHECK_TOOL(WINDRES, [windres],
2013 [AC_MSG_ERROR([No resource compiler found.])])
2014 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
2015 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
2016 EMACSRES="emacs.res"
2017 case "$canonical" in
2018 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
2019 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
2021 dnl Construct something of the form "24,4,0,0" with 4 components.
2022 comma_version=`echo "${PACKAGE_VERSION}.0.0" | sed -e 's/\./,/g' -e 's/^\([[^,]]*,[[^,]]*,[[^,]]*,[[^,]]*\).*/\1/'`
2024 comma_space_version=`echo "$comma_version" | sed 's/,/, /g'`
2025 AC_SUBST(comma_version)
2026 AC_SUBST(comma_space_version)
2027 AC_CONFIG_FILES([nt/emacs.rc nt/emacsclient.rc])
2028 if test "${opsys}" = "cygwin"; then
2029 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
2030 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
2031 # Tell the linker that emacs.res is an object (which we compile from
2032 # the rc file), not a linker script.
2033 W32_RES_LINK="-Wl,emacs.res"
2035 UPDATE_MANIFEST=update-game-score.exe.manifest
2036 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
2037 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
2038 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
2039 W32_RES_LINK="\$(EMACSRES)"
2040 CLIENTRES="emacsclient.res"
2041 CLIENTW="emacsclientw\$(EXEEXT)"
2042 FIRSTFILE_OBJ=firstfile.o
2045 LIBS_ECLIENT="-lcomctl32"
2046 LIB_WSOCK32="-lwsock32"
2047 NTLIB="ntlib.$ac_objext"
2048 XARGS_LIMIT="-s 10000"
2054 AC_SUBST(EMACS_MANIFEST)
2055 AC_SUBST(UPDATE_MANIFEST)
2058 AC_SUBST(W32_RES_LINK)
2059 AC_SUBST(FIRSTFILE_OBJ)
2062 AC_SUBST(LIBS_ECLIENT)
2063 AC_SUBST(LIB_WSOCK32)
2065 AC_SUBST(XARGS_LIMIT)
2067 if test "${HAVE_W32}" = "yes"; then
2072 ## $window_system is now set to the window system we will
2080 case "${window_system}" in
2085 case "${with_x_toolkit}" in
2086 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
2087 motif ) USE_X_TOOLKIT=MOTIF ;;
2089 term_header=gtkutil.h
2090 dnl Don't set this for GTK. A lot of tests below assumes Xt when
2091 dnl USE_X_TOOLKIT is set.
2092 USE_X_TOOLKIT=none ;;
2093 gtk2 ) with_gtk2=yes
2094 term_header=gtkutil.h
2095 USE_X_TOOLKIT=none ;;
2096 gtk3 ) with_gtk3=yes
2097 term_header=gtkutil.h
2098 USE_X_TOOLKIT=none ;;
2099 no ) USE_X_TOOLKIT=none ;;
2100 dnl If user did not say whether to use a toolkit, make this decision later:
2101 dnl use the toolkit if we have gtk, or X11R5 or newer.
2102 * ) USE_X_TOOLKIT=maybe ;;
2106 term_header=nsterm.h
2109 term_header=w32term.h
2113 if test "$window_system" = none && test "X$with_x" != "Xno"; then
2114 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
2115 if test "$HAVE_XSERVER" = true ||
2116 test -n "$DISPLAY" ||
2118 for emacs_libX11 in /usr/lib/libX11.*; do break; done
2119 test "$emacs_libX11" != '/usr/lib/libX11.*'
2122 AC_MSG_ERROR([You seem to be running X, but no X development libraries
2123 were found. You should install the relevant development files for X
2124 and for the toolkit you want, such as Gtk+ or Motif. Also make
2125 sure you have development files for image handling, i.e.
2126 tiff, gif, jpeg, png and xpm.
2127 If you are sure you want Emacs compiled without X window support, pass
2133 # Does the opsystem file prohibit the use of the GNU malloc?
2134 # Assume not, until told otherwise.
2138 [whether malloc is Doug Lea style],
2139 [emacs_cv_var_doug_lea_malloc],
2140 [emacs_cv_var_doug_lea_malloc=no
2141 dnl Hooks do not work with address sanitization.
2142 if test "$emacs_cv_sanitize_address" != yes; then
2145 [[#include <malloc.h>
2146 static void hook (void) {}]],
2147 [[malloc_set_state (malloc_get_state ());
2148 __after_morecore_hook = hook;
2149 __malloc_initialize_hook = hook;]])],
2150 [emacs_cv_var_doug_lea_malloc=yes])
2152 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
2158 ## darwin ld insists on the use of malloc routines in the System framework.
2159 darwin | mingw32 | nacl | sol2-10) ;;
2160 cygwin) hybrid_malloc=yes
2162 *) test "$ac_cv_func_sbrk" = yes && system_malloc=$emacs_cv_sanitize_address;;
2165 if test "${system_malloc}" != yes && test "${doug_lea_malloc}" != yes \
2166 && test "${UNEXEC_OBJ}" = unexelf.o; then
2172 if test "${system_malloc}" = "yes"; then
2173 AC_DEFINE([SYSTEM_MALLOC], 1,
2174 [Define to 1 to use the system memory allocator, even if it is not
2178 (The GNU allocators don't work with this system configuration.)"
2180 elif test "$hybrid_malloc" = yes; then
2181 AC_DEFINE(HYBRID_MALLOC, 1,
2182 [Define to use gmalloc before dumping and the system malloc after.])
2185 GNU_MALLOC_reason=" (only before dumping)"
2186 GMALLOC_OBJ=gmalloc.o
2189 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
2190 VMLIMIT_OBJ=vm-limit.o
2192 AC_CHECK_HEADERS([sys/vlimit.h])
2193 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
2196 [[extern char data_start[]; char ch;]],
2197 [[return data_start < &ch;]])],
2198 [emacs_cv_data_start=yes],
2199 [emacs_cv_data_start=no])])
2200 if test $emacs_cv_data_start = yes; then
2201 AC_DEFINE([HAVE_DATA_START], 1,
2202 [Define to 1 if data_start is the address of the start
2203 of the main data segment.])
2206 AC_SUBST([HYBRID_MALLOC])
2207 AM_CONDITIONAL([HYBRID_MALLOC_LIB], [test -n "$HYBRID_MALLOC"])
2208 AC_SUBST(GMALLOC_OBJ)
2209 AC_SUBST(VMLIMIT_OBJ)
2211 if test "$doug_lea_malloc" = "yes" && test "$hybrid_malloc" != yes; then
2212 if test "$GNU_MALLOC" = yes ; then
2214 (Using Doug Lea's new malloc from the GNU C Library.)"
2216 AC_DEFINE(DOUG_LEA_MALLOC, 1,
2217 [Define to 1 if the system memory allocator is Doug Lea style,
2218 with malloc hooks and malloc_set_state.])
2220 ## Use mmap directly for allocating larger buffers.
2221 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
2222 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
2223 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
2225 mingw32|gnu*) REL_ALLOC=no ;;
2229 if test x"${REL_ALLOC}" = x; then
2230 REL_ALLOC=${GNU_MALLOC}
2233 use_mmap_for_buffers=no
2235 mingw32) use_mmap_for_buffers=yes ;;
2239 if test $use_mmap_for_buffers = yes; then
2240 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
2244 LIBS="$LIBS_SYSTEM $LIBS"
2246 dnl FIXME replace main with a function we actually want from this library.
2247 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
2249 dnl Check for the POSIX thread library.
2251 AC_CHECK_HEADERS_ONCE(pthread.h)
2252 if test "$ac_cv_header_pthread_h" && test "$opsys" != "mingw32"; then
2253 AC_CACHE_CHECK([for pthread library],
2254 [emacs_cv_pthread_lib],
2255 [emacs_cv_pthread_lib=no
2257 for emacs_pthread_lib in 'none needed' -lpthread; do
2258 case $emacs_pthread_lib in
2259 -*) LIBS="$OLD_LIBS $emacs_pthread_lib";;
2263 [[#include <pthread.h>
2265 sigset_t old_mask, new_mask;
2266 void noop (void) {}]],
2267 [[pthread_t th = pthread_self ();
2269 status += pthread_create (&th, 0, 0, 0);
2270 status += pthread_sigmask (SIG_BLOCK, &new_mask, &old_mask);
2271 status += pthread_kill (th, 0);
2272 #if ! (defined SYSTEM_MALLOC || defined HYBRID_MALLOC \
2273 || defined DOUG_LEA_MALLOC)
2274 /* Test for pthread_atfork only if gmalloc uses it,
2275 as older-style hosts like MirBSD 10 lack it. */
2276 status += pthread_atfork (noop, noop, noop);
2279 [emacs_cv_pthread_lib=$emacs_pthread_lib])
2281 if test "$emacs_cv_pthread_lib" != no; then
2285 if test "$emacs_cv_pthread_lib" != no; then
2286 AC_DEFINE([HAVE_PTHREAD], 1, [Define to 1 if you have POSIX threads.])
2287 case $emacs_cv_pthread_lib in
2288 -*) LIB_PTHREAD=$emacs_cv_pthread_lib;;
2290 ac_cv_func_pthread_sigmask=yes
2291 # Some systems optimize for single-threaded programs by default, and
2292 # need special flags to disable these optimizations. For example, the
2293 # definition of 'errno' in <errno.h>.
2296 AC_DEFINE([_REENTRANT], 1,
2297 [Define to 1 if your system requires this in multithreaded code.]);;
2299 AC_DEFINE([_THREAD_SAFE], 1,
2300 [Define to 1 if your system requires this in multithreaded code.]);;
2304 AC_SUBST([LIB_PTHREAD])
2306 dnl Check for need for bigtoc support on IBM AIX
2310 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
2312 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
2313 *) gdb_cv_bigtoc=-bbigtoc ;;
2316 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
2317 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
2322 # Change CFLAGS, CPPFLAGS, and LIBS temporarily so that C_SWITCH_X_SITE
2323 # is for the tests that follow. We set them back later on.
2325 REAL_CFLAGS="$CFLAGS"
2326 REAL_CPPFLAGS="$CPPFLAGS"
2329 if test "${HAVE_X11}" = "yes"; then
2330 DEFS="$C_SWITCH_X_SITE $DEFS"
2331 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2333 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2334 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2336 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2337 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2338 # but it's more convenient here to set LD_RUN_PATH since this
2339 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2340 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2341 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2345 if test "${opsys}" = "gnu-linux"; then
2346 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2347 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2348 [[XOpenDisplay ("foo");]])],
2349 [xgnu_linux_first_failure=no],
2350 [xgnu_linux_first_failure=yes])
2351 if test "${xgnu_linux_first_failure}" = "yes"; then
2352 OLD_CPPFLAGS="$CPPFLAGS"
2354 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2355 LIBS="$LIBS -b i486-linuxaout"
2356 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2357 [[XOpenDisplay ("foo");]])],
2358 [xgnu_linux_second_failure=no],
2359 [xgnu_linux_second_failure=yes])
2360 if test "${xgnu_linux_second_failure}" = "yes"; then
2361 # If we get the same failure with -b, there is no use adding -b.
2362 # So leave it out. This plays safe.
2365 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2366 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2369 CPPFLAGS=$OLD_CPPFLAGS
2376 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2377 # header files included from there.
2378 AC_MSG_CHECKING(for Xkb)
2379 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2380 #include <X11/XKBlib.h>]],
2381 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2382 emacs_xkb=yes, emacs_xkb=no)
2383 AC_MSG_RESULT($emacs_xkb)
2384 if test $emacs_xkb = yes; then
2385 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2388 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2389 XScreenNumberOfScreen)
2392 if test "${window_system}" = "x11"; then
2393 AC_MSG_CHECKING(X11 version 6)
2394 AC_CACHE_VAL(emacs_cv_x11_version_6,
2395 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2396 [[#if XlibSpecificationRelease < 6
2399 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2400 if test $emacs_cv_x11_version_6 = yes; then
2401 AC_MSG_RESULT(6 or newer)
2402 AC_DEFINE(HAVE_X11R6, 1,
2403 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2404 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2405 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2409 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2410 [Define if you have usable X11R6-style XIM support.])
2414 AC_MSG_RESULT(before 6)
2419 ### Use -lrsvg-2 if available, unless '--with-rsvg=no' is specified.
2421 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2422 if test "${with_rsvg}" != "no"; then
2423 RSVG_REQUIRED=2.11.0
2424 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2426 EMACS_CHECK_MODULES([RSVG], [$RSVG_MODULE])
2427 AC_SUBST(RSVG_CFLAGS)
2430 if test $HAVE_RSVG = yes; then
2431 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2432 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2433 # Windows loads librsvg dynamically
2434 if test "${opsys}" = "mingw32"; then
2442 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${HAVE_W32}" = "yes"; then
2443 if test "${with_imagemagick}" != "no"; then
2444 ## 6.3.5 is the earliest version known to work; see Bug#17339.
2445 ## 6.8.2 makes Emacs crash; see Bug#13867.
2446 IMAGEMAGICK_MODULE="Wand >= 6.3.5 Wand != 6.8.2"
2447 EMACS_CHECK_MODULES([IMAGEMAGICK], [$IMAGEMAGICK_MODULE])
2448 AC_SUBST(IMAGEMAGICK_CFLAGS)
2449 AC_SUBST(IMAGEMAGICK_LIBS)
2451 if test $HAVE_IMAGEMAGICK = yes; then
2452 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2455 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2456 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2457 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers MagickAutoOrientImage)
2464 AC_CHECK_LIB(anl, getaddrinfo_a, HAVE_GETADDRINFO_A=yes)
2465 if test "${HAVE_GETADDRINFO_A}" = "yes"; then
2466 AC_DEFINE(HAVE_GETADDRINFO_A, 1,
2467 [Define to 1 if you have getaddrinfo_a for asynchronous DNS resolution.])
2468 GETADDRINFO_A_LIBS="-lanl"
2469 AC_SUBST(GETADDRINFO_A_LIBS)
2474 gtk_term_header=$term_header
2477 if test "${opsys}" != "mingw32"; then
2478 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2481 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2483 dnl Checks for libraries.
2484 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2485 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2486 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2487 AC_MSG_ERROR($GTK_PKG_ERRORS)
2489 if test "$pkg_check_gtk" = "yes"; then
2490 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2491 GTK_OBJ=emacsgtkfixed.o
2492 gtk_term_header=gtkutil.h
2493 USE_GTK_TOOLKIT="GTK3"
2494 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2495 AC_DEFINE([GDK_DISABLE_DEPRECATION_WARNINGS], [1],
2496 [Define to 1 to disable GTK+/GDK deprecation warnings.])
2497 AC_DEFINE([GLIB_DISABLE_DEPRECATION_WARNINGS], [1],
2498 [Define to 1 to disable Glib deprecation warnings.])
2502 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2506 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2509 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2511 dnl Checks for libraries.
2512 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2513 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2514 if test "$pkg_check_gtk" = "no" &&
2515 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2517 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2519 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2526 if test x"$pkg_check_gtk" = xyes; then
2529 CFLAGS="$CFLAGS $GTK_CFLAGS"
2530 LIBS="$GTK_LIBS $LIBS"
2531 dnl Try to compile a simple GTK program.
2532 AC_MSG_CHECKING([whether GTK compiles])
2536 [[/* Check the Gtk and Glib APIs. */
2537 #include <gtk/gtk.h>
2538 #include <glib-object.h>
2540 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2544 GtkSettings *gs = 0;
2545 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2546 strict C prohibits this. Use gtk_main_iteration to test that the
2547 libraries are there. */
2548 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2549 0, 0, 0, G_CALLBACK (callback), 0))
2550 gtk_main_iteration ();
2553 AC_MSG_RESULT([$GTK_COMPILES])
2554 if test "${GTK_COMPILES}" != "yes"; then
2556 if test "$USE_X_TOOLKIT" != "maybe"; then
2557 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2560 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2562 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2563 GTK_OBJ="gtkutil.o $GTK_OBJ"
2564 term_header=$gtk_term_header
2566 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2567 closing open displays. This is no problem if you just use
2568 one display, but if you use more than one and close one of them
2570 See http://bugzilla.gnome.org/show_bug.cgi?id=85715]])
2578 if test "${HAVE_GTK}" = "yes"; then
2580 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2581 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2582 if test "$with_toolkit_scroll_bars" != no; then
2583 with_toolkit_scroll_bars=yes
2586 dnl Check if we have the old file selection dialog declared and
2587 dnl in the link library. In 2.x it may be in the library,
2588 dnl but not declared if deprecated featured has been selected out.
2589 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2590 HAVE_GTK_FILE_SELECTION=no
2591 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2592 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2593 #include <gtk/gtk.h>])
2594 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2595 AC_CHECK_FUNCS(gtk_file_selection_new)
2598 dnl Same as above for gtk_handle_box.
2599 HAVE_GTK_HANDLE_BOX=no
2600 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2601 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2602 #include <gtk/gtk.h>])
2603 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2604 AC_CHECK_FUNCS(gtk_handle_box_new)
2607 dnl Same as above for gtk_tearoff_menu_item.
2608 HAVE_GTK_TEAROFF_MENU_ITEM=no
2609 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2610 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2611 #include <gtk/gtk.h>])
2612 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2613 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2616 dnl Check for functions introduced in 2.14 and later.
2617 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2618 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2619 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2620 gtk_orientable_set_orientation \
2621 gtk_window_set_has_resize_grip)
2623 term_header=gtkutil.h
2627 dnl Enable xwidgets if GTK3 and WebKitGTK+ are available.
2630 if test "$with_xwidgets" != "no"; then
2631 test "$USE_GTK_TOOLKIT" = "GTK3" && test "$window_system" != "none" ||
2632 AC_MSG_ERROR([xwidgets requested but gtk3 not used.])
2634 WEBKIT_REQUIRED=2.12
2635 WEBKIT_MODULES="webkit2gtk-4.0 >= $WEBKIT_REQUIRED"
2636 EMACS_CHECK_MODULES([WEBKIT], [$WEBKIT_MODULES])
2637 HAVE_XWIDGETS=$HAVE_WEBKIT
2638 test $HAVE_XWIDGETS = yes ||
2639 AC_MSG_ERROR([xwidgets requested but WebKitGTK+ not found.])
2641 XWIDGETS_OBJ=xwidget.o
2642 AC_DEFINE([HAVE_XWIDGETS], 1, [Define to 1 if you have xwidgets support.])
2644 AC_SUBST(XWIDGETS_OBJ)
2649 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2650 dnl other platforms.
2653 if test "${with_dbus}" = "yes"; then
2654 EMACS_CHECK_MODULES([DBUS], [dbus-1 >= 1.0])
2655 if test "$HAVE_DBUS" = yes; then
2656 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2657 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2658 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2661 LIBS="$LIBS $DBUS_LIBS"
2662 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2663 dbus_type_is_valid \
2664 dbus_validate_bus_name \
2665 dbus_validate_path \
2666 dbus_validate_interface \
2667 dbus_validate_member)
2672 AC_SUBST(DBUS_CFLAGS)
2676 dnl GSettings has been tested under GNU/Linux only.
2678 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2679 EMACS_CHECK_MODULES([GSETTINGS], [gio-2.0 >= 2.26])
2680 if test "$HAVE_GSETTINGS" = "yes"; then
2682 CFLAGS="$CFLAGS $GSETTINGS_CFLAGS"
2684 LIBS="$LIBS $GSETTINGS_LIBS"
2685 AC_MSG_CHECKING([whether GSettings is in gio])
2688 [[/* Check that gsettings really is present. */
2689 #include <glib-object.h>
2690 #include <gio/gio.h>
2693 GSettings *settings;
2694 GVariant *val = g_settings_get_value (settings, "");
2696 [], HAVE_GSETTINGS=no)
2697 AC_MSG_RESULT([$HAVE_GSETTINGS])
2699 if test "$HAVE_GSETTINGS" = "yes"; then
2700 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2701 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2702 SETTINGS_LIBS="$GSETTINGS_LIBS"
2709 dnl GConf has been tested under GNU/Linux only.
2710 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2712 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2713 EMACS_CHECK_MODULES([GCONF], [gconf-2.0 >= 2.13])
2714 if test "$HAVE_GCONF" = yes; then
2715 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2716 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2717 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2718 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2722 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2723 EMACS_CHECK_MODULES([GOBJECT], [gobject-2.0 >= 2.0])
2724 if test "$HAVE_GOBJECT" = "yes"; then
2725 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2726 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2728 SAVE_CFLAGS="$CFLAGS"
2730 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2731 LIBS="$SETTINGS_LIBS $LIBS"
2732 CFLAGS="$SAVE_CFLAGS"
2735 AC_SUBST(SETTINGS_CFLAGS)
2736 AC_SUBST(SETTINGS_LIBS)
2739 dnl SELinux is available for GNU/Linux only.
2742 if test "${with_selinux}" = "yes"; then
2743 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2744 if test "$HAVE_LIBSELINUX" = yes; then
2745 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2746 LIBSELINUX_LIBS=-lselinux
2749 AC_SUBST(LIBSELINUX_LIBS)
2752 if test "${with_gnutls}" = "yes" ; then
2753 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.12.2],
2754 [HAVE_GNUTLS=yes], [HAVE_GNUTLS=no])
2755 if test "${HAVE_GNUTLS}" = "yes"; then
2756 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2757 EMACS_CHECK_MODULES([LIBGNUTLS3], [gnutls >= 3.0.0],
2758 [AC_DEFINE(HAVE_GNUTLS3, 1, [Define if using GnuTLS v3.])], [])
2761 # Windows loads GnuTLS dynamically
2762 if test "${opsys}" = "mingw32"; then
2767 AC_SUBST(LIBGNUTLS_LIBS)
2768 AC_SUBST(LIBGNUTLS_CFLAGS)
2771 if test "${with_libsystemd}" = "yes" ; then
2772 dnl This code has been tested with libsystemd 222 and later.
2773 dnl FIXME: Find the earliest version number for which Emacs should work,
2774 dnl and change '222' to that number.
2775 EMACS_CHECK_MODULES([LIBSYSTEMD], [libsystemd >= 222],
2776 [HAVE_LIBSYSTEMD=yes], [HAVE_LIBSYSTEMD=no])
2777 if test "${HAVE_LIBSYSTEMD}" = "yes"; then
2778 AC_DEFINE(HAVE_LIBSYSTEMD, 1, [Define if using libsystemd.])
2782 AC_SUBST(LIBSYSTEMD_LIBS)
2783 AC_SUBST(LIBSYSTEMD_CFLAGS)
2788 dnl MS Windows native file monitor is available for mingw32 only.
2789 case $with_file_notification,$opsys in
2791 AC_MSG_ERROR(['--with-file-notification=w32' was specified, but
2792 this is only supported on MS-Windows native and MinGW32 builds.
2793 Consider using gfile instead.])
2795 w32,* | yes,mingw32)
2796 AC_CHECK_HEADER(windows.h)
2797 if test "$ac_cv_header_windows_h" = yes ; then
2798 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2799 NOTIFY_OBJ=w32notify.o
2800 NOTIFY_SUMMARY="yes (w32)"
2804 dnl inotify is available only on GNU/Linux.
2805 case $with_file_notification,$NOTIFY_OBJ in
2807 AC_CHECK_HEADER(sys/inotify.h)
2808 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2809 AC_CHECK_FUNC(inotify_init1)
2810 if test "$ac_cv_func_inotify_init1" = yes; then
2811 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2812 NOTIFY_OBJ=inotify.o
2813 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2818 dnl kqueue is available on BSD-like systems.
2819 case $with_file_notification,$NOTIFY_OBJ in
2821 EMACS_CHECK_MODULES([KQUEUE], [libkqueue])
2822 if test "$HAVE_KQUEUE" = "yes"; then
2823 AC_DEFINE(HAVE_KQUEUE, 1, [Define to 1 to use kqueue.])
2824 CPPFLAGS="$CPPFLAGS -I/usr/include/kqueue"
2825 NOTIFY_CFLAGS=$KQUEUE_CFLAGS
2826 NOTIFY_LIBS=$KQUEUE_LIBS
2828 NOTIFY_SUMMARY="yes -lkqueue"
2830 AC_SEARCH_LIBS(kqueue, [])
2831 if test "$ac_cv_search_kqueue" != no; then
2832 AC_DEFINE(HAVE_KQUEUE, 1, [Define to 1 to use kqueue.])
2834 NOTIFY_SUMMARY="yes (kqueue)"
2839 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2840 dnl has been added in glib 2.24. It has been tested under
2842 case $with_file_notification,$NOTIFY_OBJ in
2844 if test "${HAVE_NS}" = yes; then
2845 AC_MSG_ERROR(['--with-file-notification=gfile' is not supported in NextStep builds.
2846 Consider kqueue instead.])
2848 EMACS_CHECK_MODULES([GFILENOTIFY], [gio-2.0 >= 2.24])
2849 if test "$HAVE_GFILENOTIFY" = "yes"; then
2850 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2851 NOTIFY_CFLAGS=$GFILENOTIFY_CFLAGS
2852 NOTIFY_LIBS=$GFILENOTIFY_LIBS
2853 NOTIFY_OBJ=gfilenotify.o
2854 NOTIFY_SUMMARY="yes -lgio (gfile)"
2859 case $with_file_notification,$NOTIFY_OBJ in
2860 yes,* | no,* | *,?*) ;;
2861 *) AC_MSG_ERROR([File notification '$with_file_notification' requested but requirements not found.]) ;;
2864 if test -n "$NOTIFY_OBJ"; then
2865 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2867 AC_SUBST(NOTIFY_CFLAGS)
2868 AC_SUBST(NOTIFY_LIBS)
2869 AC_SUBST(NOTIFY_OBJ)
2871 dnl Do not put whitespace before the #include statements below.
2872 dnl Older compilers (eg sunos4 cc) choke on it.
2875 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2876 if test "$with_xaw3d" != no; then
2877 AC_CACHE_VAL(emacs_cv_xaw3d,
2878 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2879 #include <X11/Intrinsic.h>
2880 #include <X11/Xaw3d/Simple.h>]],
2882 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2883 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2884 emacs_cv_xaw3d=no)])
2888 if test $emacs_cv_xaw3d = yes; then
2889 AC_MSG_CHECKING(for xaw3d)
2890 AC_MSG_RESULT([yes; using Lucid toolkit])
2894 AC_DEFINE(HAVE_XAW3D, 1,
2895 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2897 AC_MSG_CHECKING(for xaw3d)
2899 AC_MSG_CHECKING(for libXaw)
2900 AC_CACHE_VAL(emacs_cv_xaw,
2901 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2902 #include <X11/Intrinsic.h>
2903 #include <X11/Xaw/Simple.h>]],
2907 if test $emacs_cv_xaw = yes; then
2908 AC_MSG_RESULT([yes; using Lucid toolkit])
2911 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2912 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2914 AC_MSG_ERROR([No X toolkit could be found.
2915 If you are sure you want Emacs compiled without an X toolkit, pass
2917 to configure. Otherwise, install the development libraries for the toolkit
2918 that you want to use (e.g. Gtk+) and re-run configure.])
2923 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2927 if test "${USE_X_TOOLKIT}" != "none"; then
2928 AC_MSG_CHECKING(X11 toolkit version)
2929 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2930 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2931 [[#if XtSpecificationRelease < 6
2934 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2935 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2936 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2937 AC_MSG_RESULT(6 or newer)
2938 AC_DEFINE(HAVE_X11XTR6, 1,
2939 [Define to 1 if you have the X11R6 or newer version of Xt.])
2940 LIBXTR6="-lSM -lICE"
2942 ## Use libw.a along with X11R6 Xt.
2943 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2946 AC_MSG_RESULT(before 6)
2949 dnl If using toolkit, check whether libXmu.a exists.
2950 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2952 if test x$HAVE_X11XTR6 = xyes; then
2953 OTHERLIBS='-lXt -lSM -lICE'
2957 AC_SEARCH_LIBS([XmuConvertStandardSelection], [Xmu], [], [], [$OTHERLIBS])
2958 if test "X$LIBS" != "X$OLDLIBS"; then
2959 LIBXMU=$ac_cv_search_XmuConvertStandardSelection
2962 dnl ac_cv_search_XmuConvertStandardSelection is also referenced below.
2968 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2969 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2970 if test -d /usr/include/openmotif; then
2971 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2972 emacs_cv_openmotif=yes
2973 case "$canonical" in
2974 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2975 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2978 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2981 emacs_cv_openmotif=no
2983 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2984 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2985 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2988 Motif version prior to 2.1.
2990 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2991 if test $emacs_cv_motif_version_2_1 = yes; then
2992 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2993 if test x$emacs_cv_openmotif = xyes; then
2994 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2997 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2998 # We put this in CFLAGS temporarily to precede other -I options
2999 # that might be in CFLAGS temporarily.
3000 # We put this in CPPFLAGS where it precedes the other -I options.
3001 OLD_CPPFLAGS=$CPPFLAGS
3003 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
3004 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
3005 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
3007 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
3008 if test $emacs_cv_lesstif = yes; then
3009 # Make sure this -I option remains in CPPFLAGS after it is set
3010 # back to REAL_CPPFLAGS.
3011 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
3012 # have those other -I options anyway. Ultimately, having this
3013 # directory ultimately in CPPFLAGS will be enough.
3014 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
3015 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
3018 CPPFLAGS=$OLD_CPPFLAGS
3021 AC_CHECK_HEADER([Xm/BulletinB.h], [],
3022 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
3025 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
3026 dnl using Motif or Xaw3d is available, and unless
3027 dnl --with-toolkit-scroll-bars=no was specified.
3029 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
3030 [Define to 1 if we should use toolkit scroll bars.])dnl
3031 USE_TOOLKIT_SCROLL_BARS=no
3032 if test "${with_toolkit_scroll_bars}" != "no"; then
3033 if test "${USE_X_TOOLKIT}" != "none"; then
3034 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
3035 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3037 USE_TOOLKIT_SCROLL_BARS=yes
3038 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
3039 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3040 USE_TOOLKIT_SCROLL_BARS=yes
3042 elif test "${HAVE_GTK}" = "yes"; then
3043 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3044 USE_TOOLKIT_SCROLL_BARS=yes
3045 elif test "${HAVE_NS}" = "yes"; then
3046 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3047 USE_TOOLKIT_SCROLL_BARS=yes
3048 elif test "${HAVE_W32}" = "yes"; then
3049 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3050 USE_TOOLKIT_SCROLL_BARS=yes
3054 dnl See if XIM is available.
3055 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
3056 #include <X11/Xlib.h>
3057 #include <X11/Xresource.h>]],
3058 [[XIMProc callback;]])],
3060 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
3063 dnl '--with-xim' now controls only the initial value of use_xim at run time.
3065 if test "${with_xim}" != "no"; then
3066 AC_DEFINE(USE_XIM, 1,
3067 [Define to 1 if we should use XIM, if it is available.])
3071 if test "${HAVE_XIM}" != "no"; then
3073 if test "$GCC" = yes; then
3074 CFLAGS="$CFLAGS --pedantic-errors"
3076 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
3077 #include <X11/Xlib.h>
3078 #include <X11/Xresource.h>]],
3084 XPointer *client_data;
3086 /* If we're not using GCC, it's probably not XFree86, and this is
3087 probably right, but we can't use something like --pedantic-errors. */
3088 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
3089 char*, XIMProc, XPointer*);
3091 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
3093 [emacs_cv_arg6_star=yes])
3094 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
3095 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
3096 either XPointer or XPointer*.])dnl
3097 if test "$emacs_cv_arg6_star" = yes; then
3098 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
3100 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
3105 ### Start of font-backend (under any platform) section.
3106 # (nothing here yet -- this is a placeholder)
3107 ### End of font-backend (under any platform) section.
3109 ### Start of font-backend (under X11) section.
3110 if test "${HAVE_X11}" = "yes"; then
3111 ## Use -lXft if available, unless '--with-xft=no'.
3113 if test "x${with_x}" = "xno"; then
3117 if test "$with_xft" != no; then
3118 EMACS_CHECK_MODULES([FONTCONFIG], [fontconfig >= 2.2.0])
3119 with_xft=$HAVE_FONTCONFIG
3122 if test "x${with_xft}" != "xno"; then
3124 EMACS_CHECK_MODULES([XFT], [xft >= 0.13.0], [], [HAVE_XFT=no])
3125 ## Because xftfont.c uses XRenderQueryExtension, we also
3126 ## need to link to -lXrender.
3128 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
3129 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
3130 OLD_CPPFLAGS="$CPPFLAGS"
3131 OLD_CFLAGS="$CFLAGS"
3133 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
3134 CFLAGS="$CFLAGS $XFT_CFLAGS"
3135 XFT_LIBS="-lXrender $XFT_LIBS"
3136 LIBS="$XFT_LIBS $LIBS"
3137 AC_CHECK_HEADER(X11/Xft/Xft.h,
3138 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
3139 [[#include <X11/X.h>]])
3141 if test "${HAVE_XFT}" = "yes"; then
3142 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
3144 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
3145 fi # "${HAVE_XFT}" = "yes"
3146 CPPFLAGS=$OLD_CPPFLAGS
3149 fi # "$HAVE_XFT" != no
3150 fi # "x${with_xft}" != "xno"
3152 ## We used to allow building with FreeType and without Xft.
3153 ## However, the ftx font backend driver is not in good shape.
3154 if test "$HAVE_XFT" != "yes"; then
3155 dnl For the "Does Emacs use" message at the end.
3159 dnl Strict linkers fail with
3160 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
3161 dnl if -lfreetype is not specified.
3162 dnl The following is needed to set FREETYPE_LIBS.
3163 EMACS_CHECK_MODULES([FREETYPE], [freetype2])
3165 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
3169 if test "${HAVE_FREETYPE}" = "yes"; then
3170 AC_DEFINE(HAVE_FREETYPE, 1,
3171 [Define to 1 if using the freetype and fontconfig libraries.])
3172 if test "${with_libotf}" != "no"; then
3173 EMACS_CHECK_MODULES([LIBOTF], [libotf])
3174 if test "$HAVE_LIBOTF" = "yes"; then
3175 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
3176 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
3177 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
3178 HAVE_OTF_GET_VARIATION_GLYPHS=no)
3179 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
3180 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
3181 [Define to 1 if libotf has OTF_get_variation_glyphs.])
3185 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
3186 dnl Does the new font backend require it, or can it work without it?
3190 if test "${HAVE_LIBOTF}" = yes; then
3191 if test "${with_m17n_flt}" != "no"; then
3192 EMACS_CHECK_MODULES([M17N_FLT], [m17n-flt])
3193 if test "$HAVE_M17N_FLT" = "yes"; then
3194 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
3205 ### End of font-backend (under X11) section.
3207 AC_SUBST(FREETYPE_CFLAGS)
3208 AC_SUBST(FREETYPE_LIBS)
3209 AC_SUBST(FONTCONFIG_CFLAGS)
3210 AC_SUBST(FONTCONFIG_LIBS)
3211 AC_SUBST(LIBOTF_CFLAGS)
3212 AC_SUBST(LIBOTF_LIBS)
3213 AC_SUBST(M17N_FLT_CFLAGS)
3214 AC_SUBST(M17N_FLT_LIBS)
3217 if test "${HAVE_X11}" = "yes"; then
3218 if test "${with_cairo}" != "no"; then
3219 CAIRO_REQUIRED=1.12.0
3220 CAIRO_MODULE="cairo >= $CAIRO_REQUIRED"
3221 EMACS_CHECK_MODULES(CAIRO, $CAIRO_MODULE)
3222 if test $HAVE_CAIRO = yes; then
3223 AC_DEFINE(USE_CAIRO, 1, [Define to 1 if using cairo.])
3225 AC_MSG_ERROR([cairo requested but not found.])
3228 CFLAGS="$CFLAGS $CAIRO_CFLAGS"
3229 LIBS="$LIBS $CAIRO_LIBS"
3230 AC_SUBST(CAIRO_CFLAGS)
3231 AC_SUBST(CAIRO_LIBS)
3235 if test "${HAVE_X11}" = "yes"; then
3236 AC_CHECK_HEADER(X11/Xlib-xcb.h,
3237 AC_CHECK_LIB(xcb, xcb_translate_coordinates, HAVE_XCB=yes))
3238 if test "${HAVE_XCB}" = "yes"; then
3239 AC_CHECK_LIB(X11-xcb, XGetXCBConnection, HAVE_X11_XCB=yes)
3240 if test "${HAVE_X11_XCB}" = "yes"; then
3241 AC_DEFINE(USE_XCB, 1,
3242 [Define to 1 if you have the XCB library and X11-XCB library for mixed
3243 X11/XCB programming.])
3244 XCB_LIBS="-lX11-xcb -lxcb"
3250 ### Use -lXpm if available, unless '--with-xpm=no'.
3251 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
3252 ### The Cygwin-w32 build uses <noX/xpm.h> instead of <X11/xpm.h>, so
3253 ### we need to set LDFLAGS accordingly.
3256 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
3257 if test "${with_xpm}" != "no"; then
3258 SAVE_LDFLAGS="$LDFLAGS"
3259 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
3260 AC_CHECK_HEADER(noX/xpm.h,
3261 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
3262 if test "${HAVE_XPM}" = "yes"; then
3263 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3264 AC_EGREP_CPP(no_return_alloc_pixels,
3265 [#include "noX/xpm.h"
3266 #ifndef XpmReturnAllocPixels
3267 no_return_alloc_pixels
3269 ], HAVE_XPM=no, HAVE_XPM=yes)
3271 if test "${HAVE_XPM}" = "yes"; then
3275 LDFLAGS="$SAVE_LDFLAGS"
3280 if test "${HAVE_XPM}" = "yes"; then
3281 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3286 if test "${HAVE_X11}" = "yes"; then
3287 dnl Avoid Xpm on AIX unless requested, as it crashes; see Bug#17598.
3288 test "$opsys$with_xpm_set" = aix4-2 && with_xpm=no
3290 if test "${with_xpm}" != "no"; then
3291 AC_CHECK_HEADER(X11/xpm.h,
3292 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
3293 if test "${HAVE_XPM}" = "yes"; then
3294 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3295 AC_EGREP_CPP(no_return_alloc_pixels,
3296 [#include "X11/xpm.h"
3297 #ifndef XpmReturnAllocPixels
3298 no_return_alloc_pixels
3300 ], HAVE_XPM=no, HAVE_XPM=yes)
3302 if test "${HAVE_XPM}" = "yes"; then
3310 if test "${HAVE_XPM}" = "yes"; then
3311 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3313 elif test "$opsys,$LUCID_LIBW" = aix4-2,-lXaw; then
3314 dnl AIX -lXaw needs -lXpm linked too; see Bug#17598 Message#152.
3319 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
3320 ### slightly different requirements wrt image libraries (it doesn't
3321 ### use -lXpm because it loads the xpm shared library dynamically at
3323 if test "${opsys}" = "mingw32"; then
3324 if test "${with_xpm}" != "no"; then
3325 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
3329 if test "${HAVE_XPM}" = "yes"; then
3330 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3336 ### Use -ljpeg if available, unless '--with-jpeg=no'.
3339 if test "${with_jpeg}" != "no"; then
3340 AC_CACHE_CHECK([for jpeglib 6b or later],
3343 for emacs_cv_jpeglib in yes -ljpeg no; do
3344 case $emacs_cv_jpeglib in
3347 *) LIBS="$LIBS $emacs_cv_jpeglib";;
3351 [[#undef HAVE_STDLIB_H /* Avoid config.h/jpeglib.h collision. */
3352 #include <stdio.h> /* jpeglib.h needs FILE and size_t. */
3353 #include <jpeglib.h>
3355 char verify[JPEG_LIB_VERSION < 62 ? -1 : 1];
3356 struct jpeg_decompress_struct cinfo;
3359 jpeg_create_decompress (&cinfo);
3360 WARNMS (&cinfo, JWRN_JPEG_EOF);
3361 jpeg_destroy_decompress (&cinfo);
3363 [emacs_link_ok=yes],
3366 test $emacs_link_ok = yes && break
3368 if test "$emacs_cv_jpeglib" != no; then
3370 AC_DEFINE([HAVE_JPEG], 1,
3371 [Define to 1 if you have the jpeg library (typically -ljpeg).])
3372 ### mingw32 doesn't use -ljpeg, since it loads the library
3373 ### dynamically when needed, and doesn't want a run-time
3374 ### dependency on the jpeglib DLL.
3375 test "$emacs_cv_jpeglib" != yes && test "${opsys}" != "mingw32" \
3376 && LIBJPEG=$emacs_cv_jpeglib
3383 if test "${with_zlib}" != "no"; then
3385 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
3387 case $ac_cv_search_inflateEnd in
3388 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3391 if test "${HAVE_ZLIB}" = "yes"; then
3392 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3393 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3394 if test "${opsys}" = "mingw32"; then
3400 ### Dynamic modules support
3405 if test "${with_modules}" != "no"; then
3409 MODULES_SUFFIX=".so"
3413 MODULES_SUFFIX=".dll"
3417 MODULES_SUFFIX=".so"
3421 # BSD systems have dlopen in libc.
3422 AC_CHECK_FUNC([dlopen],
3423 [MODULES_SUFFIX=".so"
3428 if test "${HAVE_MODULES}" = no; then
3429 AC_MSG_ERROR([Dynamic modules are not supported on your system])
3432 LIBS="$LIBS $LIBMODULES"
3433 AC_CHECK_FUNCS([dladdr dlfunc])
3438 if test "${HAVE_MODULES}" = yes; then
3439 MODULES_OBJ="dynlib.o emacs-module.o"
3440 AC_DEFINE(HAVE_MODULES, 1, [Define to 1 if dynamic modules are enabled])
3441 AC_DEFINE_UNQUOTED(MODULES_SUFFIX, "$MODULES_SUFFIX",
3442 [System extension for dynamic libraries])
3444 AC_SUBST(MODULES_OBJ)
3445 AC_SUBST(LIBMODULES)
3447 ### Use -lpng if available, unless '--with-png=no'.
3451 if test "${NS_IMPL_COCOA}" = yes; then
3453 elif test "${with_png}" != no; then
3454 # mingw32 loads the library dynamically.
3455 if test "$opsys" = mingw32; then
3456 AC_CHECK_HEADER([png.h], [HAVE_PNG=yes])
3457 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3458 AC_MSG_CHECKING([for png])
3459 png_cflags=`(libpng-config --cflags) 2>&AS_MESSAGE_LOG_FD` &&
3460 png_libs=`(libpng-config --libs) 2>&AS_MESSAGE_LOG_FD` || {
3461 # libpng-config does not work; configure by hand.
3462 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
3463 # in /usr/include/libpng.
3464 if test -r /usr/include/libpng/png.h &&
3465 test ! -r /usr/include/png.h; then
3466 png_cflags=-I/usr/include/libpng
3474 CFLAGS="$CFLAGS $png_cflags"
3475 LIBS="$png_libs -lz -lm $LIBS"
3477 [AC_LANG_PROGRAM([[#include <png.h>]],
3478 [[return !png_get_channels (0, 0);]])],
3480 PNG_CFLAGS=`AS_ECHO(["$png_cflags"]) | sed -e "$edit_cflags"`
3482 # $LIBPNG requires explicit -lz in some cases.
3483 # We don't know what those cases are, exactly, so play it safe and
3484 # append -lz to any nonempty $LIBPNG, unless we're already using LIBZ.
3485 if test -n "$LIBPNG" && test -z "$LIBZ"; then
3486 LIBPNG="$LIBPNG -lz"
3490 AC_MSG_RESULT([$HAVE_PNG])
3493 if test $HAVE_PNG = yes; then
3494 AC_DEFINE([HAVE_PNG], [1], [Define to 1 if you have the png library.])
3497 CFLAGS="$CFLAGS $PNG_CFLAGS"
3498 AC_CHECK_DECL([png_longjmp],
3500 [AC_DEFINE([PNG_DEPSTRUCT], [],
3501 [Define to empty to suppress deprecation warnings when building
3502 with --enable-gcc-warnings and with libpng versions before 1.5,
3503 which lack png_longjmp.])],
3509 AC_SUBST(PNG_CFLAGS)
3511 ### Use -ltiff if available, unless '--with-tiff=no'.
3512 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3515 if test "${opsys}" = "mingw32"; then
3516 if test "${with_tiff}" != "no"; then
3517 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3519 if test "${HAVE_TIFF}" = "yes"; then
3520 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3522 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3523 if test "${with_tiff}" != "no"; then
3524 AC_CHECK_HEADER(tiffio.h,
3526 # At least one tiff package requires the jpeg library.
3527 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3528 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3531 if test "${HAVE_TIFF}" = "yes"; then
3532 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3533 dnl FIXME -lz -lm, as per libpng?
3539 ### Use -lgif or -lungif if available, unless '--with-gif=no'.
3540 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3543 if test "${opsys}" = "mingw32"; then
3544 if test "${with_gif}" != "no"; then
3545 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3547 if test "${HAVE_GIF}" = "yes"; then
3548 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3550 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3551 || test "${HAVE_W32}" = "yes"; then
3552 AC_CHECK_HEADER(gif_lib.h,
3553 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3554 # Earlier versions can crash Emacs, but version 5.0 removes EGifPutExtensionLast.
3555 [AC_CHECK_LIB(gif, GifMakeMapObject, HAVE_GIF=yes,
3556 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])])
3558 if test "$HAVE_GIF" = yes; then
3560 elif test "$HAVE_GIF" = maybe; then
3561 # If gif_lib.h but no libgif, try libungif.
3562 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3563 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3566 if test "${HAVE_GIF}" = "yes"; then
3567 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3572 dnl Check for required libraries.
3575 if test "${HAVE_X11}" = "yes"; then
3576 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3577 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3578 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3579 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3580 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3581 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3582 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3583 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3584 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3585 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3587 test "${with_gnutls}" != "no" && test "${HAVE_GNUTLS}" != "yes" &&
3588 MISSING="$MISSING gnutls" && WITH_NO="$WITH_NO --with-gnutls=no"
3589 if test "X${MISSING}" != X; then
3590 AC_MSG_ERROR([The following required libraries were not found:
3592 Maybe some development libraries/packages are missing?
3593 If you don't want to link with them give
3595 as options to configure])
3598 ### Use -lgpm if available, unless '--with-gpm=no'.
3601 if test "${with_gpm}" != "no"; then
3602 AC_CHECK_HEADER(gpm.h,
3603 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3605 if test "${HAVE_GPM}" = "yes"; then
3606 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3612 dnl Check for malloc/malloc.h on darwin
3613 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3616 ### Use NeXTstep API to implement GUI.
3617 if test "${HAVE_NS}" = "yes"; then
3618 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
3619 if test "${NS_IMPL_COCOA}" = "yes"; then
3620 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
3622 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3623 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3624 if test $NS_GNUSTEP_CONFIG != yes; then
3625 # See also .m.o rule in src/Makefile.in. */
3626 # FIXME: are all these flags really needed? Document here why. */
3627 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3628 ## Extra CFLAGS applied to src/*.m files.
3629 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3635 ### Use session management (-lSM -lICE) if available
3638 if test "${HAVE_X11}" = "yes"; then
3639 AC_CHECK_HEADER(X11/SM/SMlib.h,
3640 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3642 if test "${HAVE_X_SM}" = "yes"; then
3643 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3649 ### Use XRandr (-lXrandr) if available
3651 if test "${HAVE_X11}" = "yes"; then
3652 XRANDR_REQUIRED=1.2.2
3653 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3654 EMACS_CHECK_MODULES([XRANDR], [$XRANDR_MODULES])
3655 if test $HAVE_XRANDR = no; then
3656 # Test old way in case pkg-config doesn't have it (older machines).
3657 # Include Xrender.h by hand to work around bug in older Xrandr.h
3658 # (e.g. RHEL5) and silence (harmless) configure warning (bug#18465).
3659 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3660 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)],
3661 [], [AC_INCLUDES_DEFAULT
3662 #include <X11/extensions/Xrender.h>])
3663 if test $HAVE_XRANDR = yes; then
3664 XRANDR_LIBS=-lXrandr
3667 if test $HAVE_XRANDR = yes; then
3668 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3671 AC_SUBST(XRANDR_CFLAGS)
3672 AC_SUBST(XRANDR_LIBS)
3674 ### Use Xinerama (-lXinerama) if available
3676 if test "${HAVE_X11}" = "yes"; then
3677 XINERAMA_REQUIRED=1.0.2
3678 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3679 EMACS_CHECK_MODULES([XINERAMA], [$XINERAMA_MODULES])
3680 if test $HAVE_XINERAMA = no; then
3681 # Test old way in case pkg-config doesn't have it (older machines).
3682 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3683 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3684 if test $HAVE_XINERAMA = yes; then
3685 XINERAMA_LIBS=-lXinerama
3688 if test $HAVE_XINERAMA = yes; then
3689 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3692 AC_SUBST(XINERAMA_CFLAGS)
3693 AC_SUBST(XINERAMA_LIBS)
3695 ### Use Xfixes (-lXfixes) if available
3697 if test "${HAVE_X11}" = "yes"; then
3698 XFIXES_REQUIRED=4.0.0
3699 XFIXES_MODULES="xfixes >= $XFIXES_REQUIRED"
3700 EMACS_CHECK_MODULES([XFIXES], [$XFIXES_MODULES])
3701 if test $HAVE_XFIXES = no; then
3702 # Test old way in case pkg-config doesn't have it (older machines).
3703 AC_CHECK_HEADER(X11/extensions/Xfixes.h,
3704 [AC_CHECK_LIB(Xfixes, XFixesHideCursor, HAVE_XFIXES=yes)])
3705 if test $HAVE_XFIXES = yes; then
3706 XFIXES_LIBS=-lXfixes
3709 if test $HAVE_XFIXES = yes; then
3710 AC_DEFINE(HAVE_XFIXES, 1, [Define to 1 if you have the Xfixes extension.])
3713 AC_SUBST(XFIXES_CFLAGS)
3714 AC_SUBST(XFIXES_LIBS)
3716 ### Use Xdbe (-lXdbe) if available
3718 if test "${HAVE_X11}" = "yes"; then
3719 AC_CHECK_HEADER(X11/extensions/Xdbe.h,
3720 [AC_CHECK_LIB(Xext, XdbeAllocateBackBufferName, HAVE_XDBE=yes)],
3722 [#include <X11/Xlib.h>
3724 if test $HAVE_XDBE = yes; then
3727 if test $HAVE_XDBE = yes; then
3728 AC_DEFINE(HAVE_XDBE, 1, [Define to 1 if you have the Xdbe extension.])
3731 AC_SUBST(XDBE_CFLAGS)
3734 ### Use libxml (-lxml2) if available
3735 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3737 if test "${with_xml2}" != "no"; then
3738 ### I'm not sure what the version number should be, so I just guessed.
3739 EMACS_CHECK_MODULES([LIBXML2], [libxml-2.0 > 2.6.17])
3740 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3741 if test "${HAVE_LIBXML2}" != "yes" && test "$opsys" = "darwin"; then
3742 SAVE_CPPFLAGS="$CPPFLAGS"
3743 if test -z "$xcsdkdir" -a -n "$XCRUN" -a ! -d /usr/include; then
3744 dnl /usr/include is not found. Try Xcode SDK dir if it is sane.
3745 xcsdkdir=`$XCRUN --show-sdk-path 2>/dev/null`
3747 *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
3751 CPPFLAGS="$CPPFLAGS -I$xcsdkdir/usr/include/libxml2"
3752 AC_CHECK_HEADER(libxml/HTMLparser.h,
3753 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3754 [#include <libxml/HTMLparser.h>])])
3755 CPPFLAGS="$SAVE_CPPFLAGS"
3756 if test "${HAVE_LIBXML2}" = "yes"; then
3757 LIBXML2_CFLAGS="-I'$xcsdkdir/usr/include/libxml2'"
3758 LIBXML2_LIBS="-lxml2"
3761 if test "${HAVE_LIBXML2}" = "yes"; then
3762 if test "${opsys}" != "mingw32"; then
3763 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no,
3768 if test "${HAVE_LIBXML2}" = "yes"; then
3769 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3776 AC_SUBST(LIBXML2_LIBS)
3777 AC_SUBST(LIBXML2_CFLAGS)
3779 # Check for mail-locking functions in a "mail" library. Probably this should
3780 # have the same check as for liblockfile below.
3781 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
3782 if test $have_mail = yes; then
3784 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the 'mail' library (-lmail).])
3787 LIBS="$LIBS_MAIL $LIBS"
3788 AC_CHECK_FUNCS(touchlock)
3793 dnl Debian, at least:
3794 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
3795 if test $have_lockfile = yes; then
3796 LIBS_MAIL=-llockfile
3797 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the 'lockfile' library (-llockfile).])
3799 # If we have the shared liblockfile, assume we must use it for mail
3800 # locking (e.g. Debian). If we couldn't link against liblockfile
3801 # (no liblockfile.a installed), ensure that we don't need to.
3802 dnl This works for files generally, not just executables.
3803 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3804 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
3805 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
3806 if test $ac_cv_prog_liblockfile = yes; then
3807 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3808 This probably means that movemail could lose mail.
3809 There may be a 'development' package to install containing liblockfile.])
3812 AC_CHECK_HEADERS_ONCE(maillock.h)
3815 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3816 ## interlock access to the mail spool. The alternative is a lock file named
3817 ## /usr/spool/mail/$USER.lock.
3820 aix4-2) mail_lock="lockf" ;;
3822 gnu|freebsd|dragonfly|netbsd|openbsd|darwin) mail_lock="flock" ;;
3824 ## On GNU/Linux systems, both methods are used by various mail programs.
3825 ## I assume most people are using newer mailers that have heard of flock.
3826 ## Change this if you need to.
3827 ## Debian contains a patch which says: "On Debian/GNU/Linux systems,
3828 ## configure gets the right answers, and that means *NOT* using flock.
3829 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3830 ## for details." and then uses '#ifdef DEBIAN'. Unfortunately the
3831 ## Debian maintainer hasn't provided a clean fix for Emacs.
3832 ## movemail.c will use 'maillock' when MAILDIR, HAVE_LIBMAIL and
3833 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3834 ## correct logic. -- fx
3835 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3836 ## liblockfile is a Free Software replacement for libmail, used on
3837 ## Debian systems and elsewhere. -rfr.
3840 if test $have_mail = yes || test $have_lockfile = yes; then
3841 test $ac_cv_header_maillock_h = yes && mail_lock=no
3846 mail_lock="none-needed" ;;
3850 case "$mail_lock" in
3851 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3853 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3857 *) BLESSMAIL_TARGET="need-blessmail" ;;
3859 AC_SUBST(BLESSMAIL_TARGET)
3862 LIBS="$LIB_PTHREAD $LIB_MATH $LIBS"
3863 AC_CHECK_FUNCS(accept4 fchdir gethostname \
3864 getrusage get_current_dir_name \
3865 lrand48 random rint \
3866 select getpagesize setlocale newlocale \
3867 getrlimit setrlimit shutdown \
3868 pthread_sigmask strsignal setitimer \
3869 sendto recvfrom getsockname getifaddrs freeifaddrs \
3871 getpwent endpwent getgrent endgrent \
3872 cfmakeraw cfsetspeed copysign __executable_start log2)
3875 dnl No need to check for posix_memalign if aligned_alloc works.
3876 AC_CHECK_FUNCS([aligned_alloc posix_memalign], [break])
3877 AC_CHECK_DECLS([aligned_alloc], [], [], [[#include <stdlib.h>]])
3879 dnl Cannot use AC_CHECK_FUNCS
3880 AC_CACHE_CHECK([for __builtin_unwind_init],
3881 emacs_cv_func___builtin_unwind_init,
3882 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3883 emacs_cv_func___builtin_unwind_init=yes,
3884 emacs_cv_func___builtin_unwind_init=no)])
3885 if test $emacs_cv_func___builtin_unwind_init = yes; then
3886 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3887 [Define to 1 if you have the '__builtin_unwind_init' function.])
3890 AC_CHECK_HEADERS_ONCE(sys/un.h)
3895 AC_CHECK_FUNCS(grantpt)
3897 # PTY-related GNU extensions.
3898 AC_CHECK_FUNCS(getpt posix_openpt)
3900 # Check this now, so that we will NOT find the above functions in ncurses.
3901 # That is because we have not set up to link ncurses in lib-src.
3902 # It's better to believe a function is not available
3903 # than to expect to find it in ncurses.
3904 # Also we need tputs and friends to be able to build at all.
3905 AC_MSG_CHECKING([for library containing tputs])
3906 # Run a test program that contains a call to tputs, a call that is
3907 # never executed. This tests whether a pre-'main' dynamic linker
3908 # works with the library. It's too much trouble to actually call
3909 # tputs in the test program, due to portability hassles. When
3910 # cross-compiling, assume the test program will run if it links.
3911 AC_DEFUN([tputs_link_source], [
3913 [[extern void tputs (const char *, int, int (*)(int));
3914 int main (int argc, char **argv)
3917 tputs (argv[0], 0, 0);
3921 if test "${opsys}" = "mingw32"; then
3924 # Maybe curses should be tried earlier?
3925 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3926 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3928 if test -z "$tputs_library"; then
3932 LIBS_TERMCAP=-l$tputs_library
3934 LIBS="$LIBS_TERMCAP $LIBS"
3936 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3937 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3939 if test "X$msg" != Xno; then
3944 AC_MSG_RESULT([$msg])
3945 if test "X$msg" = Xno; then
3946 AC_MSG_ERROR([The required function 'tputs' was not found in any library.
3947 The following libraries were tried (in order):
3948 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3949 Please try installing whichever of these libraries is most appropriate
3950 for your system, together with its header files.
3951 For example, a libncurses-dev(el) or similar package.])
3954 ## Use termcap instead of terminfo?
3955 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3957 ## FIXME? In the cases below where we unconditionally set
3958 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3959 ## if that was found above to have tputs.
3960 ## Should we use the gnu* logic everywhere?
3962 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3963 ## The ncurses library has been moved out of the System framework in
3964 ## Mac OS X 10.2. So if configure detects it, set the command-line
3965 ## option to use it.
3966 darwin) LIBS_TERMCAP="-lncurses" ;;
3968 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3971 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3972 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3973 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3974 [[#if __FreeBSD_version < 400000
3977 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3979 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3981 if test $emacs_cv_freebsd_terminfo = yes; then
3982 LIBS_TERMCAP="-lncurses"
3985 LIBS_TERMCAP="-ltermcap"
3995 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3997 LIBS_TERMCAP="-ltermcap"
4001 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
4003 ## hpux: Make sure we get select from libc rather than from libcurses
4004 ## because libcurses on HPUX 10.10 has a broken version of select.
4005 ## We used to use -lc -lcurses, but this may be cleaner.
4006 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
4007 # set that way, now it uses the default). Isn't this a contradiction?
4008 hpux*) LIBS_TERMCAP="-ltermcap" ;;
4012 TERMCAP_OBJ=tparam.o
4013 if test $TERMINFO = yes; then
4014 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
4015 TERMCAP_OBJ=terminfo.o
4017 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
4018 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
4020 AC_SUBST(LIBS_TERMCAP)
4021 AC_SUBST(TERMCAP_OBJ)
4023 # GNU/Linux-specific timer functions.
4024 AC_CACHE_CHECK([for timerfd interface], [emacs_cv_have_timerfd],
4026 [AC_LANG_PROGRAM([[#include <sys/timerfd.h>
4028 [[timerfd_create (CLOCK_REALTIME,
4029 TFD_CLOEXEC | TFD_NONBLOCK);
4030 timerfd_settime (0, TFD_TIMER_ABSTIME, 0, 0);]])],
4031 [emacs_cv_have_timerfd=yes],
4032 [emacs_cv_have_timerfd=no])])
4033 if test "$emacs_cv_have_timerfd" = yes; then
4034 AC_DEFINE([HAVE_TIMERFD], 1,
4035 [Define to 1 if timerfd functions are supported as in GNU/Linux.])
4038 # Alternate stack for signal handlers.
4039 AC_CACHE_CHECK([whether signals can be handled on alternate stack],
4040 [emacs_cv_alternate_stack],
4042 [AC_LANG_PROGRAM([[#include <signal.h>
4045 struct sigaction sa;
4046 ss.ss_sp = malloc (SIGSTKSZ);
4047 ss.ss_size = SIGSTKSZ;
4048 sa.sa_flags = SA_SIGINFO | SA_ONSTACK;
4049 sigaltstack (&ss, 0);
4050 sigaction (SIGSEGV, &sa, 0);]])],
4051 [emacs_cv_alternate_stack=yes],
4052 [emacs_cv_alternate_stack=no])])
4054 # Do we need the Hesiod library to provide the support routines?
4055 dnl FIXME? Should we be skipping this on Darwin too?
4058 if test "$with_hesiod" != no ; then
4059 # Don't set $LIBS here -- see comments above. FIXME which comments?
4061 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
4062 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
4063 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
4064 if test "$resolv" = yes ; then
4070 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
4071 hesiod=yes, :, $RESOLVLIB)])
4073 if test x"$hesiod" = xyes; then
4075 LIBRESOLV=$RESOLVLIB
4081 # These tell us which Kerberos-related libraries to use.
4088 if test "${with_kerberos}" != no; then
4090 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
4091 if test $have_com_err = yes; then
4092 COM_ERRLIB=-lcom_err
4093 LIBS="$COM_ERRLIB $LIBS"
4095 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
4096 if test $have_crypto = yes; then
4098 LIBS="$CRYPTOLIB $LIBS"
4100 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
4101 if test $have_k5crypto = yes; then
4102 CRYPTOLIB=-lk5crypto
4103 LIBS="$CRYPTOLIB $LIBS"
4105 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
4106 if test $have_krb5=yes; then
4108 LIBS="$KRB5LIB $LIBS"
4110 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
4111 if test "${with_kerberos5}" = no; then
4112 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
4113 if test $have_des425 = yes; then
4115 LIBS="$DESLIB $LIBS"
4117 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
4118 if test $have_des = yes; then
4120 LIBS="$DESLIB $LIBS"
4123 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
4124 if test $have_krb4 = yes; then
4126 LIBS="$KRB4LIB $LIBS"
4128 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
4129 if test $have_krb = yes; then
4131 LIBS="$KRB4LIB $LIBS"
4136 if test "${with_kerberos5}" != no; then
4137 AC_CHECK_HEADERS(krb5.h,
4138 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
4139 [#include <krb5.h>])])
4141 AC_CHECK_HEADERS(krb.h,,
4142 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
4143 [AC_CHECK_HEADERS(kerberos/krb.h)])])
4145 AC_CHECK_HEADERS(com_err.h)
4149 AC_SUBST(COM_ERRLIB)
4155 AC_CHECK_HEADERS(valgrind/valgrind.h)
4157 AC_CHECK_MEMBERS([struct unipair.unicode], [], [], [[#include <linux/kd.h>]])
4159 AC_CHECK_FUNCS_ONCE([sbrk tzset])
4162 AC_CHECK_FUNC(socket, , ok_so_far=no)
4163 if test $ok_so_far = yes; then
4164 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
4166 if test $ok_so_far = yes; then
4167 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
4169 if test $ok_so_far = yes; then
4170 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
4171 AC_DEFINE(HAVE_INET_SOCKETS, 1,
4172 [Define to 1 if you have inet sockets.])
4177 AC_CHECK_FUNCS(snprintf)
4179 dnl Check for glib. This differs from other library checks in that
4180 dnl Emacs need not link to glib unless some other library is already
4181 dnl linking to glib. Although glib provides no facilities that Emacs
4182 dnl needs for its own purposes, when glib is present Emacs needs to
4183 dnl use primitives like g_main_context_query to avoid clashing with
4184 dnl glib at a low level.
4186 dnl Check this late, since it depends on $GTK_CFLAGS etc.
4190 CFLAGS="$CFLAGS $GTK_CFLAGS $RSVG_CFLAGS $DBUS_CFLAGS $SETTINGS_CFLAGS"
4191 LIBS="$LIBS $GTK_LIBS $RSVG_LIBS $DBUS_LIBS $SETTINGS_LIBS"
4192 CFLAGS="$CFLAGS $NOTIFY_CFLAGS $CAIRO_CFLAGS"
4193 LIBS="$LIBS $NOTIFY_LIBS $CAIRO_LIBS"
4194 AC_MSG_CHECKING([whether GLib is linked in])
4195 AC_LINK_IFELSE([AC_LANG_PROGRAM(
4198 [[g_print ("Hello world");]])],
4201 AC_MSG_RESULT([$links_glib])
4202 if test "${links_glib}" = "yes"; then
4203 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
4204 if test "$HAVE_NS" = no;then
4212 dnl Adapted from Haible's version.
4213 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
4214 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
4215 [[char* cs = nl_langinfo(CODESET);]])],
4216 emacs_cv_langinfo_codeset=yes,
4217 emacs_cv_langinfo_codeset=no)
4219 if test $emacs_cv_langinfo_codeset = yes; then
4220 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
4221 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
4226 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
4227 dnl how the tty code is related to POSIX and/or other versions of termios.
4228 dnl The following looks like a useful start.
4230 dnl AC_SYS_POSIX_TERMIOS
4231 dnl if test $ac_cv_sys_posix_termios = yes; then
4232 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
4233 dnl and macros for terminal control.])
4234 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
4237 dnl Turned on June 1996 supposing nobody will mind it.
4238 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
4239 if test "${opsys}" != "mingw32"; then
4240 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
4241 in the full name stands for the login id.])
4244 dnl Everybody supports this, except MS.
4245 dnl Seems like the kind of thing we should be testing for, though.
4246 ## Note: PTYs are broken on darwin <6. Use at your own risk.
4247 if test "${opsys}" != "mingw32"; then
4248 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
4251 dnl Everybody supports this, except MS-DOS.
4252 dnl Seems like the kind of thing we should be testing for, though.
4253 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
4254 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
4255 4.2-compatible sockets.])
4257 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
4259 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
4260 a null file, or a data sink.])
4261 if test "${opsys}" = "mingw32"; then
4262 AC_DEFINE(NULL_DEVICE, ["NUL:"])
4264 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
4267 if test "${opsys}" = "mingw32"; then
4272 AC_DEFINE_UNQUOTED(SEPCHAR, ['$SEPCHAR'], [Character that separates PATH elements.])
4273 dnl This is for MinGW, and is used in test/Makefile.in.
4274 dnl The MSYS Bash has heuristics for replacing ':' with ';' when it
4275 dnl decides that a command-line argument to be passed to a MinGW program
4276 dnl is a PATH-style list of directories. But that heuristics plays it
4277 dnl safe, and only does the replacement when it is _absolutely_ sure it
4278 dnl sees a colon-separated list of file names; e.g. ":." is left alone,
4279 dnl which breaks in-tree builds. So we do this manually instead.
4280 dnl Note that we cannot rely on PATH_SEPARATOR, as that one will always
4281 dnl be computed as ':' in MSYS Bash.
4284 dnl Everybody supports this, except MS-DOS.
4285 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
4287 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
4290 AC_DEFINE(DIRECTORY_SEP, ['/'],
4291 [Character that separates directories in a file name.])
4293 if test "${opsys}" = "mingw32"; then
4294 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
4295 [Returns true if character is a device separator.])
4297 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
4298 [Returns true if character is a directory separator.])
4300 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
4301 [Returns true if character is any form of separator.])
4303 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
4304 [Returns true if character is a device separator.])
4306 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
4307 [Returns true if character is a directory separator.])
4309 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
4310 [Returns true if character is any form of separator.])
4313 if test "$USE_X_TOOLKIT" != "none"; then
4317 dnl Assar Westerlund <assar@sics.se> says this is necessary
4318 dnl for HP-UX 10.20, and that it works for HP-UX 0 as well.
4322 if test "$have_editres" != no && test ! -z "$LIBXMU"; then
4324 dnl See libXmu.a check above.
4325 if test x$HAVE_X11XTR6 = xyes; then
4326 LIBS="-lXt -lSM -lICE $LIBXMU"
4328 OTHERLIBS="-lXt -$LIBXMU"
4331 [#include <X11/Intrinsic.h>
4332 #include <X11/Xmu/Editres.h>],
4333 [_XEditResCheckMessages (0, 0, 0, 0);],
4334 [AC_DEFINE([X_TOOLKIT_EDITRES], 1,
4335 [Define to 1 if we should use XEditRes.])])
4342 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
4343 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
4344 dnl need the constant to dimension an array. So wire in the appropriate
4346 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
4350 emacs_broken_SIGIO=no
4353 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
4354 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
4355 hpux* | nacl | openbsd | sol2* | unixware )
4356 emacs_broken_SIGIO=yes
4360 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
4361 dnl the way this system works, libc functions that return malloced
4362 dnl memory use the libc malloc implementation. Calling xfree or
4363 dnl xrealloc on the results of such functions results in a crash.
4365 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
4366 dnl but that does not currently work on this system.
4368 dnl It is possible to completely override the malloc implementation on
4369 dnl AIX, but that involves putting the malloc functions in a shared
4370 dnl library and setting the MALLOCTYPE environment variable to point to
4371 dnl that shared library.
4373 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
4374 dnl to avoid a crash just use the Emacs implementation for that function.
4376 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
4377 dnl of this file, so that we do not check for get_current_dir_name
4378 dnl on AIX. But that might be fragile if something else ends
4379 dnl up testing for get_current_dir_name as a dependency.
4380 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
4381 get_current_dir_name should not be used.])
4385 dnl Circumvent a bug in FreeBSD. In the following sequence of
4386 dnl writes/reads on a PTY, read(2) returns bogus data:
4388 dnl write(2) 1022 bytes
4389 dnl write(2) 954 bytes, get EAGAIN
4390 dnl read(2) 1024 bytes in process_read_output
4391 dnl read(2) 11 bytes in process_read_output
4393 dnl That is, read(2) returns more bytes than have ever been written
4394 dnl successfully. The 1033 bytes read are the 1022 bytes written
4395 dnl successfully after processing (for example with CRs added if the
4396 dnl terminal is set up that way which it is here). The same bytes will
4397 dnl be seen again in a later read(2), without the CRs.
4398 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
4399 work around an issue when reading from a PTY.])
4405 dnl FIXME Can't we test if this exists (eg /proc/$$)?
4406 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
4411 darwin | dragonfly | freebsd | netbsd | openbsd )
4412 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
4413 close a pty to make it a controlling terminal (it is already a
4414 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
4418 dnl FIXME Surely we can test for this rather than hard-code it.
4420 netbsd | openbsd) sound_device="/dev/audio" ;;
4421 *) sound_device="/dev/dsp" ;;
4425 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
4426 [Name of the default sound device.])
4429 dnl Emacs can read input using SIGIO and buffering characters itself,
4430 dnl or using CBREAK mode and making C-g cause SIGINT.
4431 dnl The choice is controlled by the variable interrupt_input.
4433 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
4435 dnl Emacs uses the presence of the USABLE_SIGIO macro
4436 dnl to indicate whether or not signal-driven I/O is possible. It uses
4437 dnl INTERRUPT_INPUT to decide whether to use it by default.
4439 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
4440 dnl CBREAK mode has two disadvantages
4441 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
4442 dnl I hear that in system V this problem does not exist.
4443 dnl 2) Control-G causes output to be discarded.
4444 dnl I do not know whether this can be fixed in system V.
4446 dnl Another method of doing input is planned but not implemented.
4447 dnl It would have Emacs fork off a separate process
4448 dnl to read the input and send it to the true Emacs process
4451 darwin | gnu-linux | gnu-kfreebsd )
4452 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
4457 dnl If the system's imake configuration file defines 'NeedWidePrototypes'
4458 dnl as 'NO', we must define NARROWPROTO manually. Such a define is
4459 dnl generated in the Makefile generated by 'xmkmf'. If we don't define
4460 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
4461 dnl taking float or double parameters.
4463 cygwin|gnu|gnu-linux|gnu-kfreebsd|freebsd|netbsd|openbsd)
4464 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
4465 file defines 'NeedWidePrototypes' as 'NO'.])
4470 dnl Used in process.c, this must be a loop, even if it only runs once.
4471 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
4472 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
4473 dnl trying suffixes 0-16.
4474 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
4475 first PTY, if PTYs are supported.])
4476 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
4477 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
4478 end of a PTY, if non-standard.])
4479 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
4480 end of a PTY, if non-standard.])
4484 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4485 dnl You allocate a pty by opening /dev/ptc to get the master side.
4486 dnl To get the name of the slave side, you just ttyname() the master side.
4487 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4488 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4492 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4493 dnl multi-line AC_DEFINEs are hard. :(
4494 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)])
4495 AC_DEFINE(PTY_NAME_SPRINTF, [])
4496 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4500 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4503 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd | darwin | nacl )
4505 if test "x$ac_cv_func_grantpt" = xyes; then
4506 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4507 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4508 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4509 dnl to prevent sigchld_handler from intercepting the child's death.
4510 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); }])
4511 dnl if HAVE_POSIX_OPENPT
4512 if test "x$ac_cv_func_posix_openpt" = xyes; then
4513 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (false)])
4514 AC_DEFINE(PTY_NAME_SPRINTF, [])
4516 elif test "x$ac_cv_func_getpt" = xyes; then
4517 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4518 AC_DEFINE(PTY_NAME_SPRINTF, [])
4520 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4523 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4528 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4529 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4530 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4534 dnl On SysVr4, grantpt(3) forks a subprocess, so do not use
4535 dnl O_CLOEXEC when opening the pty, and keep the SIGCHLD handler
4536 dnl from intercepting that death. If any child but grantpt's should die
4537 dnl within, it should be caught after sigrelse(2).
4538 AC_DEFINE(PTY_OPEN, [fd = open (pty_name, O_RDWR | O_NONBLOCK)])
4539 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); }])
4543 dnl Comments are as per sol2*.
4544 AC_DEFINE(PTY_OPEN, [fd = open (pty_name, O_RDWR | O_NONBLOCK)])
4545 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); }])
4552 dnl This change means that we don't loop through allocate_pty too
4553 dnl many times in the (rare) event of a failure.
4554 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4555 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4556 dnl Push various streams modules onto a PTY channel. Used in process.c.
4557 AC_DEFINE(SETUP_SLAVE_PTY, [if (ioctl (forkin, I_PUSH, "ptem") == -1) fatal ("ioctl I_PUSH ptem"); if (ioctl (forkin, I_PUSH, "ldterm") == -1) fatal ("ioctl I_PUSH ldterm"); if (ioctl (forkin, I_PUSH, "ttcompat") == -1) fatal ("ioctl I_PUSH ttcompat");], [How to set up a slave PTY, if needed.])
4562 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4563 "typing" a signal character on the pty.])
4566 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4567 aix4-2 | cygwin | gnu | dragonfly | freebsd | netbsd | openbsd | darwin )
4568 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4571 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4572 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4573 gnu-linux | gnu-kfreebsd )
4575 AC_MSG_CHECKING([for signals via characters])
4576 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4577 #include <linux/version.h>
4578 #if LINUX_VERSION_CODE < 0x20400
4579 # error "Linux version too old"
4581 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4583 AC_MSG_RESULT([$emacs_signals_via_chars])
4584 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4589 AH_TEMPLATE(TAB3, [Undocumented.])
4592 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4594 gnu | dragonfly | freebsd | netbsd | openbsd )
4595 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4596 AC_DEFINE(TAB3, OXTABS)
4599 gnu-linux | gnu-kfreebsd )
4600 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4604 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4605 [do { extern void *__libc_ia64_register_backing_store_base; __builtin_ia64_flushrs (); mark_memory (__libc_ia64_register_backing_store_base, __builtin_ia64_bsp ());} while (false)],
4606 [Mark a secondary stack, like the register stack on the ia64.]), [])
4610 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4611 run_time_remap; for HPUX.])
4616 dnl This won't be used automatically yet. We also need to know, at least,
4617 dnl that the stack is continuous.
4618 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4619 registers relevant for conservative garbage collection in the jmp_buf.])
4623 dnl Not all the architectures are tested, but there are Debian packages
4624 dnl for SCM and/or Guile on them, so the technique must work. See also
4625 dnl comments in alloc.c concerning setjmp and gcc.
4626 dnl Fixme: it's probably safe to just use the GCC conditional below.
4627 gnu-linux | gnu-kfreebsd )
4628 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4629 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4630 || defined __alpha__ || defined __mips__ || defined __s390__ \
4631 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4632 || defined __ia64__ || defined __sh__
4635 # error "setjmp not known to work on this arch"
4637 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4642 if test x$GCC = xyes; then
4643 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4644 AC_DEFINE(GC_SETJMP_WORKS, 1)
4647 aix* | dragonfly | freebsd | netbsd | openbsd | sol2* )
4648 AC_DEFINE(GC_SETJMP_WORKS, 1)
4653 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4654 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4657 [[#include <setjmp.h>
4659 # define _longjmp longjmp
4664 _longjmp (j, 1);]])],
4665 [emacs_cv_func__setjmp=yes],
4666 [emacs_cv_func__setjmp=no])])
4667 if test $emacs_cv_func__setjmp = yes; then
4668 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4671 # We need to preserve signal mask to handle C stack overflows.
4672 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4675 [[#include <setjmp.h>
4678 if (! sigsetjmp (j, 1))
4679 siglongjmp (j, 1);]])],
4680 [emacs_cv_func_sigsetjmp=yes],
4681 [emacs_cv_func_sigsetjmp=no])])
4682 if test $emacs_cv_func_sigsetjmp = yes; then
4683 AC_DEFINE([HAVE_SIGSETJMP], 1,
4684 [Define to 1 if sigsetjmp and siglongjmp work.])
4687 case $emacs_cv_func_sigsetjmp,$emacs_cv_alternate_stack,$opsys in
4688 yes,yes,* | *,*,mingw32)
4689 AC_DEFINE([HAVE_STACK_OVERFLOW_HANDLING], 1,
4690 [Define to 1 if C stack overflow can be handled in some cases.]);;
4695 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4696 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4697 dnl and this is all we need.
4698 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4705 dnl Used in xfaces.c.
4706 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4707 some systems, where it requires time.h.])
4712 dnl Define symbols to identify the version of Unix this is.
4713 dnl Define all the symbols that apply correctly.
4714 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4715 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4716 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4717 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4722 dnl This symbol should be defined on AIX Version 3 ???????
4723 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4725 # error "_AIX not defined"
4727 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4731 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4735 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
4736 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4737 dnl distinguish OS X from pure Darwin.
4738 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4741 gnu-linux | gnu-kfreebsd )
4743 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4748 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4752 AC_DEFINE(DOS_NT, [])
4753 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4754 if test "x$ac_enable_checking" != "x" ; then
4755 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4761 AC_DEFINE(USG5_4, [])
4762 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4767 AC_DEFINE(USG5_4, [])
4771 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4774 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4775 emacs_cv_usable_FIONREAD=no
4779 emacs_cv_usable_FIONREAD=yes
4784 [AC_LANG_PROGRAM([[#include <sys/types.h>
4785 #include <sys/ioctl.h>
4787 # include <sys/filio.h>
4790 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4791 [emacs_cv_usable_FIONREAD=yes],
4792 [emacs_cv_usable_FIONREAD=no])
4795 if test $emacs_cv_usable_FIONREAD = yes; then
4796 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4798 if test $emacs_broken_SIGIO = no; then
4799 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4801 [AC_LANG_PROGRAM([[#include <fcntl.h>
4804 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4805 [emacs_cv_usable_SIGIO=yes],
4806 [emacs_cv_usable_SIGIO=no])],
4807 [emacs_cv_usable_SIGIO=yes],
4808 [emacs_cv_usable_SIGIO=no])
4809 if test $emacs_cv_usable_SIGIO = yes; then
4810 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4817 dnl It works to open the pty's tty in the parent (Emacs), then
4818 dnl close and reopen it in the child.
4819 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4820 works to open a pty's tty in the parent process, then close and
4821 reopen it in the child.])
4825 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4830 # Set up the CFLAGS for real compilation, so we can substitute it.
4831 CFLAGS="$REAL_CFLAGS"
4832 CPPFLAGS="$REAL_CPPFLAGS"
4835 ## Hack to detect a buggy GCC version.
4836 if test "$GCC" = yes && \
4837 $CC --version 2> /dev/null | grep 'gcc.* 4.5.0' >/dev/null; then
4839 *-fno-optimize-sibling-calls*) ;;
4841 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS.]);;
4845 version=$PACKAGE_VERSION
4847 copyright="Copyright (C) 2016 Free Software Foundation, Inc."
4848 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4849 [Short copyright string for this version of Emacs.])
4852 ### Specify what sort of things we'll be editing into Makefile and config.h.
4853 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4855 AC_SUBST(configuration)
4860 AC_SUBST(exec_prefix)
4863 AC_SUBST(sharedstatedir)
4864 AC_SUBST(libexecdir)
4868 AC_SUBST(standardlisppath)
4869 AC_SUBST(locallisppath)
4871 AC_SUBST(x_default_search_path)
4873 AC_SUBST(archlibdir)
4879 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4880 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4881 ## end of LIBX_BASE, but nothing ever set it.
4882 AC_SUBST(LD_SWITCH_X_SITE)
4883 AC_SUBST(C_SWITCH_X_SITE)
4884 AC_SUBST(GNUSTEP_CFLAGS)
4886 ## Used in lwlib/Makefile.in.
4887 AC_SUBST(X_TOOLKIT_TYPE)
4889 AC_SUBST(ns_appbindir)
4890 AC_SUBST(ns_appresdir)
4892 AC_SUBST(GNU_OBJC_CFLAGS)
4893 AC_SUBST(OTHER_FILES)
4895 if test -n "${term_header}"; then
4896 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4897 [Define to the header for the built-in window system.])
4900 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4901 [Define to the canonical Emacs configuration name.])
4902 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4903 [Define to the options passed to configure.])
4908 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4909 AC_DEFINE(HAVE_X_WINDOWS, 1,
4910 [Define to 1 if you want to use the X window system.])
4912 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4914 if test "$HAVE_CAIRO" = "yes"; then
4915 FONT_OBJ="ftfont.o ftcrfont.o"
4916 elif test "$HAVE_XFT" = "yes"; then
4917 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4918 elif test "$HAVE_FREETYPE" = "yes"; then
4919 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4929 if test "${USE_X_TOOLKIT}" != "none" ; then
4931 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4932 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4933 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4934 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4935 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4939 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4940 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4944 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4945 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4946 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4950 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4951 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4954 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4957 AC_SUBST(WIDGET_OBJ)
4960 case "$USE_X_TOOLKIT" in
4961 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4962 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4963 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4965 if test "$HAVE_XWIDGETS" = "yes"; then
4966 TOOLKIT_LIBW="$TOOLKIT_LIBW -lXcomposite"
4968 AC_SUBST(TOOLKIT_LIBW)
4970 if test "${opsys}" != "mingw32"; then
4971 if test "$USE_X_TOOLKIT" = "none"; then
4972 LIBXT_OTHER="\$(LIBXSM)"
4974 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4977 AC_SUBST(LIBXT_OTHER)
4979 if test "${HAVE_X11}" = "yes" ; then
4980 AC_DEFINE(HAVE_X11, 1,
4981 [Define to 1 if you want to use version 11 of X windows.])
4982 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4986 AC_SUBST(LIBX_OTHER)
4988 if test "$HAVE_GTK" = yes || test "$HAVE_X11" != yes; then
4990 elif test "$USE_X_TOOLKIT" = none; then
4991 LIBXMENU='$(oldXMenudir)/libXMenu11.a'
4993 LIBXMENU='$(lwlibdir)/liblw.a'
4997 AC_CACHE_CHECK([for struct alignment],
4998 [emacs_cv_struct_alignment],
5000 [AC_LANG_PROGRAM([[#include <stddef.h>
5001 struct __attribute__ ((aligned (8))) s { char c; };
5002 struct t { char c; struct s s; };
5003 char verify[offsetof (struct t, s) == 8 ? 1 : -1];
5005 [emacs_cv_struct_alignment=yes],
5006 [emacs_cv_struct_alignment=no])])
5007 if test "$emacs_cv_struct_alignment" = yes; then
5008 AC_DEFINE([HAVE_STRUCT_ATTRIBUTE_ALIGNED], 1,
5009 [Define to 1 if 'struct __attribute__ ((aligned (N)))' aligns the
5010 structure to an N-byte boundary.])
5013 if test "${GNU_MALLOC}" = "yes" ; then
5014 AC_DEFINE(GNU_MALLOC, 1,
5015 [Define to 1 if you want to use the GNU memory allocator.])
5019 if test "${REL_ALLOC}" = "yes" ; then
5020 AC_DEFINE(REL_ALLOC, 1,
5021 [Define REL_ALLOC if you want to use the relocating allocator for
5024 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
5026 AC_SUBST(RALLOC_OBJ)
5028 if test "$opsys" = "cygwin"; then
5029 CYGWIN_OBJ="cygw32.o"
5030 ## Cygwin differs because of its unexec().
5032 POST_ALLOC_OBJ=lastfile.o
5033 elif test "$opsys" = "mingw32"; then
5036 POST_ALLOC_OBJ=lastfile.o
5039 PRE_ALLOC_OBJ=lastfile.o
5042 AC_SUBST(CYGWIN_OBJ)
5043 AC_SUBST(PRE_ALLOC_OBJ)
5044 AC_SUBST(POST_ALLOC_OBJ)
5046 dnl Call this 'FORTIFY_SOUR' so that it sorts before the 'FORTIFY_SOURCE'
5047 dnl verbatim defined above. The tricky name is apropos, as this hack
5048 dnl makes Fortify go sour!
5049 AH_VERBATIM([FORTIFY_SOUR],
5050 [/* Without the following workaround, Emacs runs slowly on OS X 10.8.
5051 The workaround disables some useful run-time checking, so it
5052 should be conditional to the platforms with the performance bug.
5053 Perhaps Apple will fix this some day; also see m4/extern-inline.m4. */
5054 #if defined __APPLE__ && defined __GNUC__
5055 # ifndef _DONT_USE_CTYPE_INLINE_
5056 # define _DONT_USE_CTYPE_INLINE_
5058 # ifndef _FORTIFY_SOURCE
5059 # define _FORTIFY_SOURCE 0
5064 # If user asks to omit features, disable optional features that gnulib
5065 # might otherwise enable.
5066 if test "$with_features" = no && test "$enable_acl" != yes; then
5070 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
5071 # it temporarily reverts them to their pre-pkg-config values,
5072 # because gnulib needs to work with both src (which uses the
5073 # pkg-config stuff) and lib-src (which does not). For example, gnulib
5074 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
5075 # and it therefore needs to run in an environment where LIBS does not
5076 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
5077 # for some package unrelated to lib-src.
5080 CFLAGS=$pre_PKG_CONFIG_CFLAGS
5081 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
5082 gl_ASSERT_NO_GNULIB_POSIXCHECK
5083 gl_ASSERT_NO_GNULIB_TESTS
5088 if test "${opsys}" = "mingw32"; then
5089 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I \${abs_top_srcdir}/nt/inc"
5090 # Remove unneeded switches from the value of CC that goes to Makefiles
5091 CC=`AS_ECHO(["$CC"]) | sed -e "s,$GCC_TEST_OPTIONS,,"`
5095 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
5097 cygwin) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000" ;;
5100 ## The -headerpad option tells ld (see man page) to leave room at the
5101 ## end of the header for adding load commands. Needed for dumping.
5102 ## 0x1000 is enough for roughly 52 load commands on the x86_64
5103 ## architecture (where they are 78 bytes each). The actual number of
5104 ## load commands added is not consistent but normally ranges from
5105 ## about 14 to about 34. Setting it high gets us plenty of slop and
5106 ## only costs about 1.5K of wasted binary space.
5107 headerpad_extra=1000
5108 if test "$HAVE_NS" = "yes"; then
5109 libs_nsgui="-framework AppKit"
5110 if test "$NS_IMPL_COCOA" = "yes"; then
5111 libs_nsgui="$libs_nsgui -framework IOKit"
5116 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
5118 ## This is here because src/Makefile.in did some extra fiddling around
5119 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
5120 ## LD_SWITCH_SYSTEM_TEMACS instead,
5121 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
5122 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
5125 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
5126 ## find X at run-time.
5127 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
5128 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
5129 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
5130 ## had different values in configure (in ac_link) and src/Makefile.in.
5131 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
5132 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
5135 ## Is it any better under MinGW64 to relocate emacs into higher addresses?
5136 case "$canonical" in
5137 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x400000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
5138 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
5142 *) LD_SWITCH_SYSTEM_TEMACS= ;;
5145 # -no-pie or -nopie fixes a temacs segfault on Gentoo, OpenBSD,
5146 # Ubuntu, and other systems with "hardened" GCC configurations for
5147 # some reason (Bug#18784). We don't know why this works, but not
5148 # segfaulting is better than segfaulting. Use ac_c_werror_flag=yes
5149 # when trying the option, otherwise clang keeps warning that it does
5150 # not understand it, and pre-4.6 GCC has a similar problem
5151 # (Bug#20338). Prefer -no-pie to -nopie, as -no-pie is the
5152 # spelling used by GCC 6.1.0 and later (Bug#24682).
5154 [for $CC option to disable position independent executables],
5155 [emacs_cv_prog_cc_no_pie],
5156 [emacs_save_c_werror_flag=$ac_c_werror_flag
5157 emacs_save_LDFLAGS=$LDFLAGS
5158 ac_c_werror_flag=yes
5159 for emacs_cv_prog_cc_no_pie in -no-pie -nopie no; do
5160 test $emacs_cv_prog_cc_no_pie = no && break
5161 LDFLAGS="$emacs_save_LDFLAGS $emacs_cv_prog_cc_no_pie"
5162 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], [break])
5164 ac_c_werror_flag=$emacs_save_c_werror_flag
5165 LDFLAGS=$emacs_save_LDFLAGS])
5166 if test "$emacs_cv_prog_cc_no_pie" != no; then
5167 LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS $emacs_cv_prog_cc_no_pie"
5170 if test x$ac_enable_profiling != x ; then
5172 *freebsd | gnu-linux) ;;
5173 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
5177 LD_SWITCH_SYSTEM_TEMACS="$LDFLAGS_NOCOMBRELOC $LD_SWITCH_SYSTEM_TEMACS"
5179 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
5181 ## Common for all window systems
5182 if test "$window_system" != "none"; then
5183 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
5184 AC_DEFINE(POLL_FOR_INPUT, 1, [Define if you poll periodically to detect C-g.])
5185 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
5188 AC_SUBST(WINDOW_SYSTEM_OBJ)
5190 AH_TOP([/* GNU Emacs site configuration template file.
5192 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2016
5193 Free Software Foundation, Inc.
5195 This file is part of GNU Emacs.
5197 GNU Emacs is free software: you can redistribute it and/or modify
5198 it under the terms of the GNU General Public License as published by
5199 the Free Software Foundation, either version 3 of the License, or (at
5200 your option) any later version.
5202 GNU Emacs is distributed in the hope that it will be useful,
5203 but WITHOUT ANY WARRANTY; without even the implied warranty of
5204 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
5205 GNU General Public License for more details.
5207 You should have received a copy of the GNU General Public License
5208 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
5211 /* No code in Emacs #includes config.h twice, but some bits of code
5212 intended to work with other packages as well (like gmalloc.c)
5213 think they can include it as many times as they like. */
5214 #ifndef EMACS_CONFIG_H
5215 #define EMACS_CONFIG_H
5218 AH_BOTTOM([#include <conf_post.h>
5220 #endif /* EMACS_CONFIG_H */
5229 #### Report on what we decided to do.
5230 #### Report GTK as a toolkit, even if it doesn't use Xt.
5231 #### It makes printing result more understandable as using GTK sets
5232 #### toolkit_scroll_bars to yes by default.
5233 if test "${HAVE_GTK}" = "yes"; then
5234 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
5237 if test $USE_ACL -ne 0; then
5238 ACL_SUMMARY="yes $LIB_ACL"
5243 emacs_standard_dirs='Standard dirs'
5245 Configured for '${canonical}'.
5247 Where should the build process find the source code? ${srcdir}
5248 What compiler should emacs be built with? ${CC} ${CFLAGS}
5249 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
5250 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
5251 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
5252 What window system should Emacs use? ${window_system}
5253 What toolkit should Emacs use? ${USE_X_TOOLKIT}
5254 Where do we find X Windows header files? ${x_includes:-$emacs_standard_dirs}
5255 Where do we find X Windows libraries? ${x_libraries:-$emacs_standard_dirs}"])
5258 emacs_config_features=
5259 for opt in XAW3D XPM JPEG TIFF GIF PNG RSVG CAIRO IMAGEMAGICK SOUND GPM DBUS \
5260 GCONF GSETTINGS NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT \
5261 LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS X_TOOLKIT X11 NS MODULES \
5262 XWIDGETS LIBSYSTEMD CANNOT_DUMP; do
5265 CANNOT_DUMP) eval val=\${$opt} ;;
5266 NOTIFY|ACL) eval val=\${${opt}_SUMMARY} ;;
5267 TOOLKIT_SCROLL_BARS|X_TOOLKIT) eval val=\${USE_$opt} ;;
5268 *) eval val=\${HAVE_$opt} ;;
5271 xno|xnone|x) continue ;;
5276 GTK*|LUCID|MOTIF) opt=$val ;;
5281 AS_VAR_APPEND([emacs_config_features], ["$optsep$opt"])
5284 AC_DEFINE_UNQUOTED(EMACS_CONFIG_FEATURES, "${emacs_config_features}",
5285 [Summary of some of the main features enabled by configure.])
5287 AS_ECHO([" Does Emacs use -lXaw3d? ${HAVE_XAW3D}
5288 Does Emacs use -lXpm? ${HAVE_XPM}
5289 Does Emacs use -ljpeg? ${HAVE_JPEG}
5290 Does Emacs use -ltiff? ${HAVE_TIFF}
5291 Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF
5292 Does Emacs use a png library? ${HAVE_PNG} $LIBPNG
5293 Does Emacs use -lrsvg-2? ${HAVE_RSVG}
5294 Does Emacs use cairo? ${HAVE_CAIRO}
5295 Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}
5296 Does Emacs support sound? ${HAVE_SOUND}
5297 Does Emacs use -lgpm? ${HAVE_GPM}
5298 Does Emacs use -ldbus? ${HAVE_DBUS}
5299 Does Emacs use -lgconf? ${HAVE_GCONF}
5300 Does Emacs use GSettings? ${HAVE_GSETTINGS}
5301 Does Emacs use a file notification library? ${NOTIFY_SUMMARY}
5302 Does Emacs use access control lists? ${ACL_SUMMARY}
5303 Does Emacs use -lselinux? ${HAVE_LIBSELINUX}
5304 Does Emacs use -lgnutls? ${HAVE_GNUTLS}
5305 Does Emacs use -lxml2? ${HAVE_LIBXML2}
5306 Does Emacs use -lfreetype? ${HAVE_FREETYPE}
5307 Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}
5308 Does Emacs use -lotf? ${HAVE_LIBOTF}
5309 Does Emacs use -lxft? ${HAVE_XFT}
5310 Does Emacs use -lsystemd? ${HAVE_LIBSYSTEMD}
5311 Does Emacs directly use zlib? ${HAVE_ZLIB}
5312 Does Emacs have dynamic modules support? ${HAVE_MODULES}
5313 Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}
5314 Does Emacs support Xwidgets (requires gtk3)? ${HAVE_XWIDGETS}
5317 if test -n "${EMACSDATA}"; then
5318 AS_ECHO([" Environment variable EMACSDATA set to: $EMACSDATA"])
5320 if test -n "${EMACSDOC}"; then
5321 AS_ECHO([" Environment variable EMACSDOC set to: $EMACSDOC"])
5326 if test "$HAVE_NS" = "yes"; then
5328 AS_ECHO(["You must run \"${MAKE-make} install\" in order to test the built application.
5329 The installed application will go to nextstep/Emacs.app and can be
5330 run or moved from there."])
5331 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
5332 echo "The application will be fully self-contained."
5334 AS_ECHO(["The lisp resources for the application will be installed under ${prefix}.
5335 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
5336 to run if these resources are not installed."])
5341 if test "${opsys}" = "cygwin"; then
5343 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
5349 # Remove any trailing slashes in these variables.
5351 */) prefix=`AS_DIRNAME(["$prefix."])`;;
5353 case $exec_prefix in
5354 */) exec_prefix=`AS_DIRNAME(["$exec_prefix."])`;;
5357 if test "$HAVE_NS" = "yes"; then
5358 if test "$NS_IMPL_GNUSTEP" = yes; then
5359 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
5360 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
5361 ns_check_file=Resources/Info-gnustep.plist
5363 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
5364 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
5365 ns_check_file=Contents/Info.plist
5367 AC_SUBST(ns_check_file)
5370 dnl config.status treats $srcdir specially, so I think this is ok...
5371 AC_CONFIG_FILES([$srcdir/doc/man/emacs.1])
5373 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
5374 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
5375 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
5376 dnl (else you get "no 'Makefile.am' found for any configure output").
5377 dnl This will work, but you get a config.status that is not quite right
5378 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
5379 dnl That doesn't have any obvious consequences for Emacs, but on the whole
5380 dnl it seems better to just live with the duplication.
5381 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile nt/Makefile"
5383 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
5384 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
5385 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
5386 leim/Makefile nextstep/Makefile nt/Makefile])
5388 dnl test/ is not present in release tarfiles.
5389 opt_makefile=test/Makefile
5391 if test -f "$srcdir/$opt_makefile.in"; then
5392 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
5393 dnl Again, it's best not to use a variable. Though you can add
5394 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
5395 AC_CONFIG_FILES([test/Makefile])
5399 dnl The admin/ directory used to be excluded from tarfiles.
5400 if test -d $srcdir/admin; then
5401 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES admin/charsets/Makefile admin/unidata/Makefile admin/grammars/Makefile"
5402 AC_CONFIG_FILES([admin/charsets/Makefile])
5403 AC_CONFIG_FILES([admin/unidata/Makefile])
5404 AC_CONFIG_FILES([admin/grammars/Makefile])
5408 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
5410 AC_SUBST(SUBDIR_MAKEFILES_IN)
5412 dnl You might wonder (I did) why epaths.h is generated by running make,
5413 dnl rather than just letting configure generate it from epaths.in.
5414 dnl One reason is that the various paths are not fully expanded (see above);
5415 dnl eg gamedir=${prefix}/var/games/emacs.
5416 dnl Secondly, the GNU Coding standards require that one should be able
5417 dnl to run 'make prefix=/some/where/else' and override the values set
5418 dnl by configure. This also explains the 'move-if-change' test and
5419 dnl the use of force in the 'epaths-force' rule in Makefile.in.
5420 AC_CONFIG_COMMANDS([src/epaths.h], [
5421 if test "${opsys}" = "mingw32"; then
5422 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
5424 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
5425 fi || AC_MSG_ERROR(['src/epaths.h' could not be made.])
5426 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
5428 dnl NB we have to cheat and use the ac_... version because abs_top_srcdir
5429 dnl is not yet set, sigh. Or we could use ../$srcdir/src/.gdbinit,
5431 AC_CONFIG_COMMANDS([src/.gdbinit], [
5432 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
5433 AS_ECHO(["source $ac_abs_top_srcdir/src/.gdbinit"]) > src/.gdbinit
5437 dnl Perhaps this would be better named doc-emacs-emacsver.texi?
5438 dnl See comments for etc-refcards-emacsver.tex.
5439 dnl Since we get a doc/emacs directory generated anyway, for the Makefile,
5440 dnl it is not quite the same. But we are generating in $srcdir.
5441 AC_CONFIG_COMMANDS([doc/emacs/emacsver.texi], [
5442 ${MAKE-make} -s --no-print-directory -C doc/emacs doc-emacsver || \
5443 AC_MSG_ERROR(['doc/emacs/emacsver.texi' could not be made.])
5446 dnl If we give this the more natural name, etc/refcards/emacsver.texi,
5447 dnl then a directory etc/refcards is created in the build directory,
5448 dnl which is probably harmless, but confusing (in out-of-tree builds).
5449 dnl (If we were to generate etc/refcards/Makefile, this might change.)
5450 dnl It is really $srcdir/etc/refcards/emacsver.tex that we generate.
5451 AC_CONFIG_COMMANDS([etc-refcards-emacsver.tex], [
5452 ${MAKE-make} -s MAKEFILE_NAME=do-not-make-Makefile etc-emacsver || \
5453 AC_MSG_ERROR(['etc/refcards/emacsver.tex' could not be made.])
5458 test "$MAKE" = make || AC_MSG_NOTICE([Now you can run '$MAKE'.])