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, 1999-2017 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 (macOS Cocoa or GNUstep) windowing system.
347 On by default on macOS.])],[],[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])
358 OPTION_DEFAULT_ON([threads],[don't compile with elisp threading support])
360 AC_ARG_WITH([file-notification],[AS_HELP_STRING([--with-file-notification=LIB],
361 [use a file notification library (LIB one of: yes, inotify, kqueue, gfile, w32, no)])],
362 [ case "${withval}" in
363 y | ye | yes ) val=yes ;;
365 i | in | ino | inot | inoti | inotif | inotify ) val=inotify ;;
366 k | kq | kqu | kque | kqueu | kqueue ) val=kqueue ;;
367 g | gf | gfi | gfil | gfile ) val=gfile ;;
368 w | w3 | w32 ) val=w32 ;;
369 * ) AC_MSG_ERROR(['--with-file-notification=$withval' is invalid;
370 this option's value should be 'yes', 'no', 'inotify', 'kqueue', 'gfile' or 'w32'.
371 'yes' is a synonym for 'w32' on MS-Windows, for 'no' on Nextstep,
372 otherwise for the first of 'inotify', 'kqueue' or 'gfile' that is usable.])
375 with_file_notification=$val
377 [with_file_notification=$with_features])
379 OPTION_DEFAULT_OFF([xwidgets],
380 [enable use of some gtk widgets in Emacs buffers (requires gtk3)])
382 ## For the times when you want to build Emacs but don't have
383 ## a suitable makeinfo, and can live without the manuals.
384 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
385 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
387 ## This might be a 'configure' arg.
388 AC_SUBST([ACLOCAL_PATH])
390 ## Makefile.in needs the cache file name.
393 ## This is an option because I do not know if all info/man support
394 ## compressed files, nor how to test if they do so.
395 OPTION_DEFAULT_ON([compress-install],
396 [don't compress some files (.el, .info, etc.) when installing. Equivalent to:
397 make GZIP_PROG= install])
399 AC_ARG_WITH(gameuser,dnl
400 [AS_HELP_STRING([--with-gameuser=USER_OR_GROUP],
401 [user for shared game score files.
402 An argument prefixed by ':' specifies a group instead.])])
405 # We don't test if we can actually chown/chgrp here, because configure
406 # may run without root privileges. lib-src/Makefile.in will handle
407 # any errors due to missing user/group gracefully.
408 case ${with_gameuser} in
410 "" | yes) gamegroup=games ;;
411 :*) gamegroup=${with_gameuser#:} ;;
412 *) gameuser=${with_gameuser} ;;
415 AC_ARG_WITH([gnustep-conf],dnl
416 [AS_HELP_STRING([--with-gnustep-conf=FILENAME],
417 [name of GNUstep configuration file to use on systems where the command
418 'gnustep-config' does not work; default $GNUSTEP_CONFIG_FILE, or
419 /etc/GNUstep/GNUstep.conf])])
420 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
421 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
422 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
423 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
425 AC_ARG_ENABLE(ns-self-contained,
426 [AS_HELP_STRING([--disable-ns-self-contained],
427 [disable self contained build under NeXTstep])],
428 EN_NS_SELF_CONTAINED=$enableval,
429 EN_NS_SELF_CONTAINED=yes)
432 AC_ARG_ENABLE(locallisppath,
433 [AS_HELP_STRING([--enable-locallisppath=PATH],
434 [directories Emacs should search for lisp files specific
436 if test "${enableval}" = "no"; then
438 elif test "${enableval}" != "yes"; then
439 locallisppath=${enableval} locallisppathset=yes
442 AC_ARG_ENABLE(checking,
443 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
444 [enable expensive run-time checks. With LIST,
445 enable only specific categories of checks.
446 Categories are: all,yes,no.
447 Flags are: stringbytes, stringoverrun, stringfreelist,
448 xmallocoverrun, conslist, glyphs])],
449 [ac_checking_flags="${enableval}"],[])
450 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
451 for check in $ac_checking_flags
454 # these set all the flags to specific states
455 yes) ac_enable_checking=1 ;;
456 no) ac_enable_checking= ;
457 ac_gc_check_stringbytes= ;
458 ac_gc_check_string_overrun= ;
459 ac_gc_check_string_free_list= ;
460 ac_xmalloc_overrun= ;
461 ac_gc_check_cons_list= ;
463 all) ac_enable_checking=1 ;
464 ac_gc_check_stringbytes=1 ;
465 ac_gc_check_string_overrun=1 ;
466 ac_gc_check_string_free_list=1 ;
467 ac_xmalloc_overrun=1 ;
468 ac_gc_check_cons_list=1 ;
470 # these enable particular checks
471 stringbytes) ac_gc_check_stringbytes=1 ;;
472 stringoverrun) ac_gc_check_string_overrun=1 ;;
473 stringfreelist) ac_gc_check_string_free_list=1 ;;
474 xmallocoverrun) ac_xmalloc_overrun=1 ;;
475 conslist) ac_gc_check_cons_list=1 ;;
476 glyphs) ac_glyphs_debug=1 ;;
477 *) AC_MSG_ERROR(unknown check category $check) ;;
482 if test x$ac_enable_checking != x ; then
483 AC_DEFINE(ENABLE_CHECKING, 1,
484 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
486 if test x$ac_gc_check_stringbytes != x ; then
487 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
488 [Define this temporarily to hunt a bug. If defined, the size of
489 strings is redundantly recorded in sdata structures so that it can
490 be compared to the sizes recorded in Lisp strings.])
492 if test x$ac_gc_check_string_overrun != x ; then
493 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
494 [Define this to check for short string overrun.])
496 if test x$ac_gc_check_string_free_list != x ; then
497 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
498 [Define this to check the string free list.])
500 if test x$ac_xmalloc_overrun != x ; then
501 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
502 [Define this to check for malloc buffer overrun.])
504 if test x$ac_gc_check_cons_list != x ; then
505 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
506 [Define this to check for errors in cons list.])
508 if test x$ac_glyphs_debug != x ; then
509 AC_DEFINE(GLYPH_DEBUG, 1,
510 [Define this to enable glyphs debugging code.])
513 AC_ARG_ENABLE(check-lisp-object-type,
514 [AS_HELP_STRING([--enable-check-lisp-object-type],
515 [enable compile time checks for the Lisp_Object data type.
516 This is useful for development for catching certain types of bugs.])],
517 if test "${enableval}" != "no"; then
518 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
519 [Define this to enable compile time checks for the Lisp_Object data type.])
523 dnl The name of this option is unfortunate. It predates, and has no
524 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
525 dnl Actually, it stops it working.
526 dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
527 AC_ARG_ENABLE(profiling,
528 [AS_HELP_STRING([--enable-profiling],
529 [build emacs with low-level, gprof profiling support.
530 Mainly useful for debugging Emacs itself. May not work on
531 all platforms. Stops profiler.el working.])],
532 [ac_enable_profiling="${enableval}"],[])
533 if test x$ac_enable_profiling != x ; then
534 PROFILING_CFLAGS="-DPROFILING=1 -pg"
538 AC_SUBST(PROFILING_CFLAGS)
540 AC_ARG_ENABLE(autodepend,
541 [AS_HELP_STRING([--enable-autodepend],
542 [automatically generate dependencies to .h-files.
543 Requires gcc, enabled if found.])],
544 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
546 AC_ARG_ENABLE(gtk-deprecation-warnings,
547 [AS_HELP_STRING([--enable-gtk-deprecation-warnings],
548 [Show Gtk+/Gdk deprecation warnings for Gtk+ >= 3.0])],
549 [ac_enable_gtk_deprecation_warnings="${enableval}"],[])
552 AC_ARG_ENABLE([build-details],
553 [AS_HELP_STRING([--disable-build-details],
554 [Make the build more deterministic by omitting host
555 names, time stamps, etc. from the output.])],
556 [test "$enableval" = no && BUILD_DETAILS=--no-build-details])
557 AC_SUBST([BUILD_DETAILS])
559 dnl This used to use changequote, but, apart from 'changequote is evil'
560 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
561 dnl the great gob of text. Thus it's not processed for possible expansion.
562 dnl Just make sure the brackets remain balanced.
564 dnl Since Emacs can't find matching pairs of quotes, boundaries are
565 dnl indicated by comments.
569 ### If you add support for a new configuration, add code to this
570 ### switch statement to recognize your configuration name and select
571 ### the appropriate opsys.
573 ### As far as handling version numbers on operating systems is
574 ### concerned, make sure things will fail in a fixable way. If
575 ### /etc/MACHINES doesn't say anything about version numbers, be
576 ### prepared to handle anything reasonably. If version numbers
577 ### matter, be sure /etc/MACHINES says something about it.
580 case "${canonical}" in
582 ## GNU/Linux and similar ports
597 ## FreeBSD kernel + glibc based userland
608 *-*-openbsd* | *-*-mirbsd* )
612 ## Apple Darwin / macOS
614 case "${canonical}" in
615 *-apple-darwin[0-9].*) unported=yes ;;
616 i[3456]86-* | x86_64-* ) ;;
620 ## FIXME: Find a way to use Fink if available (Bug#11507).
623 ## Chromium Native Client
633 ## HP 9000 series 700 and 800, running HP/UX
637 hppa*-hp-hpux1[1-9]* )
639 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
643 rs6000-ibm-aix4.[23]* )
646 powerpc-ibm-aix4.[23]* )
649 rs6000-ibm-aix[56]* )
652 powerpc-ibm-aix[5-9]* | powerpc-ibm-aix[1-9][0-9]* )
658 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
659 | x86_64-*-solaris2* | x86_64-*-sunos5*)
660 case "${canonical}" in
662 amd64-*-*|x86_64-*-*) ;;
666 case "${canonical}" in
667 *-sunos5.[1-9][0-9]* | *-solaris2.[1-9][0-9]* )
669 emacs_check_sunpro_c=yes
671 *-sunos5.[1-5]* | *-solaris2.[1-5]* ) unported=yes ;;
672 ## Note that Emacs 23.1's NEWS said the following would be dropped.
673 *-sunos5.6* | *-solaris2.6* )
677 ## 5.7 EOL Aug 2008, 5.8 EOL Mar 2012.
678 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
680 emacs_check_sunpro_c=yes
683 ## Watch out for a compiler that we know will not work.
684 case "${canonical}" in
685 *-solaris* | *-sunos5* )
686 if [ "x$CC" = x/usr/ucb/cc ]; then
687 ## /usr/ucb/cc doesn't work;
688 ## we should find some other compiler that does work.
696 ## Intel 386 machines where we don't care about the manufacturer.
698 case "${canonical}" in
699 *-darwin* ) opsys=darwin ;;
702 # MinGW overrides and adds some system headers in nt/inc.
703 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
705 *-sysv4.2uw* ) opsys=unixware ;;
706 *-sysv5uw* ) opsys=unixware ;;
707 *-sysv5OpenUNIX* ) opsys=unixware ;;
708 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
714 case "${canonical}" in
717 # MinGW overrides and adds some system headers in nt/inc.
718 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
720 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
729 ### If the code above didn't choose an operating system, just choose
730 ### an operating system based on the configuration name. You really
731 ### only want to use this when you have no idea what the right
732 ### operating system is; if you know what operating systems a machine
733 ### runs, it's cleaner to make it explicit in the case statement
735 if test x"${opsys}" = x; then
736 case "${canonical}" in
737 *-gnu* ) opsys=gnu ;;
747 if test $unported = yes; then
748 AC_MSG_ERROR([Emacs does not support '${canonical}' systems.
749 If you think it should, please send a report to ${PACKAGE_BUGREPORT}.
750 Check 'etc/MACHINES' for recognized configuration names.])
753 #### Choose a compiler.
755 dnl Don't bother to test for C89.
756 AC_DEFUN([_AC_PROG_CC_C89], [$2])
758 dnl Sets GCC=yes if using gcc.
759 AC_PROG_CC([gcc cc cl clang "$XCRUN gcc" "$XCRUN clang"])
760 if test -n "$XCRUN"; then
761 AC_CHECK_PROGS(AR, [ar "$XCRUN ar"])
762 test -n "$AR" && export AR
765 dnl Emacs needs C99 or later.
770 if test x$GCC = xyes; then
771 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
774 dnl This is used in lib/Makefile.am to use nt/gnulib.mk, the
775 dnl alternative to lib/gnulib.mk, so as to avoid generating header files
776 dnl that clash with MinGW.
777 AM_CONDITIONAL([BUILDING_FOR_WINDOWSNT], [test "x$opsys" = "xmingw32"])
779 # Avoid gnulib's tests for -lcrypto, so that there's no static dependency on it.
780 AC_DEFUN([gl_CRYPTO_CHECK])
781 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
782 # as we don't use them.
783 AC_DEFUN([gl_FCNTL_O_FLAGS])
784 # Avoid gnulib's test for pthread_sigmask.
786 for func in $ac_func_list; do
787 test $func = pthread_sigmask || AS_VAR_APPEND([funcs], [" $func"])
790 # Use the system putenv even if it lacks GNU features, as we don't need them,
791 # and the gnulib replacement runs afoul of a FreeBSD 10.1 bug; see Bug#19874.
792 AC_CHECK_FUNCS_ONCE([putenv])
793 AC_DEFUN([gl_FUNC_PUTENV],
794 [test "$ac_cv_func_putenv" = yes || REPLACE_PUTENV=1])
795 # Emacs does not use the wchar or wctype-h modules.
796 AC_DEFUN([gt_TYPE_WINT_T],
797 [GNULIB_OVERRIDES_WINT_T=0
798 AC_SUBST([GNULIB_OVERRIDES_WINT_T])])
800 # Initialize gnulib right after choosing the compiler.
801 dnl Amongst other things, this sets AR and ARFLAGS.
804 if test "$ac_test_CFLAGS" != set; then
805 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
806 # if -g3 works and the user does not specify CFLAGS.
807 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
810 emacs_g3_CFLAGS='-g3';;
812 emacs_g3_CFLAGS='-g3 -O2';;
816 if test -n "$emacs_g3_CFLAGS"; then
817 emacs_save_CFLAGS=$CFLAGS
818 CFLAGS=$emacs_g3_CFLAGS
819 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
820 [emacs_cv_prog_cc_g3],
821 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
822 [emacs_cv_prog_cc_g3=yes],
823 [emacs_cv_prog_cc_g3=no])])
824 if test $emacs_cv_prog_cc_g3 != yes; then
825 CFLAGS=$emacs_save_CFLAGS
827 if test $opsys = mingw32; then
828 CFLAGS="$CFLAGS -gdwarf-2"
835 # No optimization flag was inferred for this non-GCC compiler.
836 # Try -O. This is needed for xlc on AIX; see Bug#14258.
837 emacs_save_CFLAGS=$CFLAGS
838 test -z "$CFLAGS" || CFLAGS="$CFLAGS "
840 AC_CACHE_CHECK([whether $CC accepts -O],
841 [emacs_cv_prog_cc_o],
842 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
843 [emacs_cv_prog_cc_o=yes],
844 [emacs_cv_prog_cc_o=no])])
845 if test $emacs_cv_prog_cc_o != yes; then
846 CFLAGS=$emacs_save_CFLAGS
851 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
852 # ---------------------------------------------------------------------------
853 # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
854 # Otherwise, run RUN-IF-NOT-FOUND.
855 AC_DEFUN([gl_GCC_VERSION_IFELSE],
859 #if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
862 # error "your version of gcc is older than $1.$2"
869 AC_ARG_ENABLE([gcc-warnings],
870 [AS_HELP_STRING([--enable-gcc-warnings@<:@=TYPE@:>@],
871 [control generation of GCC warnings. The TYPE 'yes'
872 means to fail if any warnings are issued; 'warn-only'
873 means issue warnings without failing (default for
874 developer builds); 'no' means disable warnings
875 (default for non-developer builds).])],
878 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
880 gl_gcc_warnings=$enableval],
881 [# By default, use 'warn-only' if it looks like the invoker of 'configure'
882 # is a developer as opposed to a builder. This is most likely true
883 # if GCC is recent enough and there is a .git directory or file;
884 # however, if there is also a .tarball-version file it is probably
885 # just a release imported into Git for patch management.
887 if test -e "$srcdir"/.git && test ! -f "$srcdir"/.tarball-version; then
888 gl_GCC_VERSION_IFELSE([5], [3], [gl_gcc_warnings=warn-only])]
892 # clang is unduly picky about some things.
893 AC_CACHE_CHECK([whether the compiler is clang], [emacs_cv_clang],
900 [emacs_cv_clang=yes],
901 [emacs_cv_clang=no])])
903 # When compiling with GCC, prefer -isystem to -I when including system
904 # include files, to avoid generating useless diagnostics for the files.
905 AS_IF([test $gl_gcc_warnings = no],
908 AS_IF([test "$emacs_cv_clang" = yes],
910 # Turn off some warnings if supported.
911 gl_WARN_ADD([-Wno-switch])
912 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
913 gl_WARN_ADD([-Wno-pointer-sign])
914 gl_WARN_ADD([-Wno-string-plus-int])
915 gl_WARN_ADD([-Wno-unknown-attributes])
920 # This, $nw, is the list of warnings we disable.
923 case $with_x_toolkit in
924 lucid | athena | motif)
925 # Old toolkits mishandle 'const'.
926 nw="$nw -Wwrite-strings"
929 AS_IF([test $gl_gcc_warnings = yes],
930 [gl_WARN_ADD([-Werror], [WERROR_CFLAGS])])
931 AC_SUBST([WERROR_CFLAGS])
933 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
934 nw="$nw -Woverlength-strings" # Not a problem these days
935 nw="$nw -Wformat-nonliteral" # we do this a lot
936 nw="$nw -Wvla" # Emacs uses <vla.h>.
937 nw="$nw -Wswitch-default" # Too many warnings for now
938 nw="$nw -Wunused-const-variable=2" # lisp.h declares const objects.
939 nw="$nw -Winline" # OK to ignore 'inline'
940 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
941 # signed overflow has undefined behavior
942 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
943 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
944 nw="$nw -Wbad-function-cast" # These casts are no worse than others.
946 # Emacs doesn't care about shadowing; see
947 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
950 # Emacs's use of alloca inhibits protecting the stack.
951 nw="$nw -Wstack-protector"
953 # Emacs's use of partly-const functions such as Fgnutls_available_p
954 # make this option problematic.
955 nw="$nw -Wsuggest-attribute=const"
957 # Emacs's use of partly-pure functions such as CHECK_TYPE make this
958 # option problematic.
959 nw="$nw -Wsuggest-attribute=pure"
961 # This part is merely for shortening the command line,
962 # since -Wall implies -Wswitch.
965 # This part is merely for shortening the command line,
966 # since -Wno-FOO needs to be added below regardless.
967 nw="$nw -Wmissing-field-initializers"
968 nw="$nw -Wtype-limits"
969 nw="$nw -Wunused-parameter"
971 if test $emacs_cv_clang = yes; then
972 nw="$nw -Wcast-align"
975 # This causes too much noise in the MinGW build
976 if test $opsys = mingw32; then
977 nw="$nw -Wpointer-sign"
980 gl_MANYWARN_ALL_GCC([ws])
981 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
985 gl_WARN_ADD([-Wredundant-decls]) # Prefer this, as we don't use Bison.
986 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
987 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
988 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
989 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
990 gl_WARN_ADD([-Wno-format-nonliteral])
992 # More things that clang is unduly picky about.
993 if test $emacs_cv_clang = yes; then
994 gl_WARN_ADD([-Wno-tautological-compare])
995 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
998 # This causes too much noise in the MinGW build
999 if test $opsys = mingw32; then
1000 gl_WARN_ADD([-Wno-pointer-sign])
1003 AC_DEFINE([GCC_LINT], [1], [Define to 1 if --enable-gcc-warnings.])
1004 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
1005 AH_VERBATIM([GNULIB_PORTCHECK_FORTIFY_SOURCE],
1006 [/* Enable compile-time and run-time bounds-checking, and some warnings,
1007 without upsetting glibc 2.15+. */
1008 #if (defined GNULIB_PORTCHECK && !defined _FORTIFY_SOURCE \
1009 && defined __OPTIMIZE__ && __OPTIMIZE__)
1010 # define _FORTIFY_SOURCE 2
1014 # We use a slightly smaller set of warning options for lib/.
1015 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
1017 nw="$nw -Wunused-macros"
1019 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
1020 AC_SUBST([GNULIB_WARN_CFLAGS])
1030 AC_ARG_ENABLE(link-time-optimization,
1031 [AS_HELP_STRING([--enable-link-time-optimization],
1032 [build emacs with link-time optimization.
1033 This requires GCC 4.5.0 or later, or clang.
1034 (Note that clang support is experimental - see INSTALL.)
1035 It also makes Emacs harder to debug, and when we tried it
1036 with GCC 4.9.0 x86-64 it made Emacs slower, so it's not
1037 recommended for typical use.])],
1038 if test "${enableval}" != "no"; then
1040 if test $emacs_cv_clang = yes; then
1041 AC_MSG_CHECKING([whether link-time optimization is supported by clang])
1042 GOLD_PLUGIN=`$CC -print-file-name=LLVMgold.so 2>/dev/null`
1043 if test -x "$GOLD_PLUGIN"; then
1046 elif test x$GCC = xyes; then
1047 AC_MSG_CHECKING([whether link-time optimization is supported by gcc])
1048 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
1049 if test x$CPUS != x; then
1055 AC_MSG_ERROR([Link-time optimization is not supported with your compiler.])
1057 if test -z "$LTO"; then
1061 CFLAGS="$CFLAGS $LTO"
1062 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1063 [ac_lto_supported=yes], [ac_lto_supported=no])
1064 CFLAGS="$old_CFLAGS"
1066 AC_MSG_RESULT([$ac_lto_supported])
1067 if test "$ac_lto_supported" = "yes"; then
1068 CFLAGS="$CFLAGS $LTO"
1069 if test x$emacs_cv_clang = xyes; then
1070 AC_MSG_WARN([Please read INSTALL before using link-time optimization with clang])
1071 # WARNING: 'ar --plugin ...' doesn't work without
1072 # command, so plugin name is appended to ARFLAGS.
1073 ARFLAGS="cru --plugin $GOLD_PLUGIN"
1074 RANLIB="$RANLIB --plugin $GOLD_PLUGIN"
1076 dnl The following is needed for GCC 4.9.0. The GCC 4.9.0 release notes
1077 dnl suggest that instead of -ffat-lto-objects we should use gcc-ar and
1078 dnl gcc-ranlib in place of ar and ranlib, but gcc-ar makes /usr/bin/ar
1079 dnl dump core on Fedora 20, so play it safe for now.
1080 gl_COMPILER_OPTION_IF([-ffat-lto-objects],
1081 [CFLAGS="$CFLAGS -ffat-lto-objects"])
1086 dnl Prefer silent make output. For verbose output, use
1087 dnl 'configure --disable-silent-rules' or 'make V=1' .
1088 AM_SILENT_RULES([yes])
1089 dnl Port to Automake 1.11.
1090 dnl This section can be removed once we assume Automake 1.14 or later.
1091 : ${AM_V=$AM_DEFAULT_VERBOSITY}
1092 : ${AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY}
1094 AM_SUBST_NOTMAKE([AM_V])
1095 AC_SUBST([AM_DEFAULT_V])
1096 AM_SUBST_NOTMAKE([AM_DEFAULT_V])
1097 AC_SUBST([AM_DEFAULT_VERBOSITY])
1099 dnl Some other nice autoconf tests.
1100 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
1103 dnl if test "x$RANLIB" = x; then
1108 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
1109 dnl can be made to directories. This is not relevant for our usage, and
1110 dnl excludes some cases that work fine for us. Eg MS Windows or files
1111 dnl hosted on AFS, both examples where simple links work, but links to
1112 dnl directories fail. We use a cut-down version instead.
1115 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
1116 rm -f conf$$ conf$$.file
1118 LN_S_FILEONLY='cp -p'
1120 dnl On MinGW, ensure we will call the MSYS /bin/ln.exe, not some
1121 dnl random program in the current directory.
1122 if (echo >conf$$.file) 2>/dev/null; then
1123 if ln -s conf$$.file conf$$ 2>/dev/null; then
1124 if test "$opsys" = "mingw32"; then
1125 LN_S_FILEONLY='/bin/ln -s'
1127 LN_S_FILEONLY='ln -s'
1129 elif ln conf$$.file conf$$ 2>/dev/null; then
1130 if test "$opsys" = "mingw32"; then
1131 LN_S_FILEONLY=/bin/ln
1138 rm -f conf$$ conf$$.file
1140 if test "$LN_S_FILEONLY" = "ln -s"; then
1141 AC_MSG_RESULT([yes])
1143 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
1146 AC_SUBST(LN_S_FILEONLY)
1149 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
1150 dnl doesn't support links to directories, as in "ln file dir". But that
1151 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
1152 dnl executables at "make install" time.
1153 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
1154 dnl for more details.
1155 if test "$opsys" = "mingw32"; then
1159 dnl On some Debian versions, "install-info" prints irritating messages
1160 dnl "This is not dpkg install-info anymore, but GNU install-info"
1161 dnl if called via an absolute file name.
1162 dnl Use the entirely-identical-but-quieter ginstall-info instead if present.
1163 dnl Sadly some people may have an old ginstall-info installed on
1164 dnl non-Debian systems, so we can't use this.
1165 dnl AC_PATH_PROGS(INSTALL_INFO, [ginstall-info install-info], :,
1166 dnl $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1168 AC_PATH_PROG(INSTALL_INFO, install-info, :,
1169 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1170 dnl Don't use GZIP, which is used by gzip for additional parameters.
1171 AC_PATH_PROG(GZIP_PROG, gzip)
1173 test $with_compress_install != yes && test -n "$GZIP_PROG" && \
1174 GZIP_PROG=" # $GZIP_PROG # (disabled by configure --without-compress-install)"
1178 if test $opsys = gnu-linux; then
1179 if test "${SETFATTR+set}" != set; then
1180 AC_CACHE_CHECK([for setfattr],
1181 [emacs_cv_prog_setfattr],
1183 if (setfattr -n user.pax.flags conftest.tmp) >/dev/null 2>&1; then
1184 emacs_cv_prog_setfattr=yes
1186 emacs_cv_prog_setfattr=no
1188 if test "$emacs_cv_prog_setfattr" = yes; then
1189 PAXCTL_notdumped='$(SETFATTR) -n user.pax.flags -v er'
1195 AC_SUBST([SETFATTR])
1198 case $opsys,$PAXCTL_notdumped in
1199 gnu-linux, | netbsd,)
1200 AC_PATH_PROG([PAXCTL], [paxctl], [],
1201 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
1202 if test -n "$PAXCTL"; then
1203 if test "$opsys" = netbsd; then
1204 PAXCTL_dumped='$(PAXCTL) +a'
1205 PAXCTL_notdumped=$PAXCTL_dumped
1207 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
1208 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1209 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then
1210 AC_MSG_RESULT([yes])
1215 if test -n "$PAXCTL"; then
1216 PAXCTL_dumped='$(PAXCTL) -zex'
1217 PAXCTL_notdumped='$(PAXCTL) -r'
1222 AC_SUBST([PAXCTL_dumped])
1223 AC_SUBST([PAXCTL_notdumped])
1225 ## Require makeinfo >= 4.13 (last of the 4.x series) to build the manuals.
1226 if test "$MAKEINFO" != "no"; then
1227 if test "$MAKEINFO" = "${am_missing_run}makeinfo"; then
1230 case `($MAKEINFO --version) 2>/dev/null` in
1231 *' (GNU texinfo) '4.1[[3-9]]* | \
1232 *' (GNU texinfo) '[[5-9]]* | \
1233 *' (GNU texinfo) '[[1-9][0-9]]* ) ;;
1238 ## Makeinfo is unusual. For a released Emacs, the manuals are
1239 ## pre-built, and not deleted by the normal clean rules. makeinfo is
1240 ## therefore in the category of "special tools" not normally required, which
1241 ## configure does not have to check for (eg autoconf itself).
1242 ## In a repository checkout on the other hand, the manuals are not included.
1243 ## So makeinfo is a requirement to build from the repository, and configure
1244 ## should test for it as it does for any other build requirement.
1245 ## We use the presence of $srcdir/info/emacs to distinguish a release,
1246 ## with pre-built manuals, from a repository checkout.
1249 if test "$MAKEINFO" = "no"; then
1251 if test "x${with_makeinfo}" = "xno"; then
1253 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
1254 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.13, and your
1255 source tree does not seem to have pre-built manuals in the 'info' directory.
1256 Either install a suitable version of makeinfo, or re-run configure
1257 with the '--without-makeinfo' option to build without the manuals.] )
1260 AC_SUBST(HAVE_MAKEINFO)
1262 if test $opsys = mingw32; then
1263 DOCMISC_W32=efaq-w32
1267 AC_SUBST(DOCMISC_W32)
1269 dnl Add our options to ac_link now, after it is set up.
1271 if test x$GCC = xyes; then
1272 test "x$GCC_LINK_TEST_OPTIONS" != x && \
1273 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1275 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
1276 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1279 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
1280 dnl If we can link with the flag, it shouldn't do any harm anyhow.
1281 dnl Treat GCC specially since it just gives a non-fatal 'unrecognized option'
1282 dnl if not built to support GNU ld.
1284 dnl For a long time, -znocombreloc was added to LDFLAGS rather than
1285 dnl LD_SWITCH_SYSTEM_TEMACS. That is:
1286 dnl * inappropriate, as LDFLAGS is a user option but this is essential.
1287 dnl Eg "make LDFLAGS=... all" could run into problems,
1288 dnl http://bugs.debian.org/684788
1289 dnl * unnecessary, since temacs is the only thing that actually needs it.
1290 dnl Indeed this is where it was originally, prior to:
1291 dnl http://lists.gnu.org/archive/html/emacs-pretest-bug/2004-03/msg00170.html
1292 late_LDFLAGS="$LDFLAGS"
1293 if test x$GCC = xyes; then
1294 LDFLAGS_NOCOMBRELOC="-Wl,-znocombreloc"
1296 LDFLAGS_NOCOMBRELOC="-znocombreloc"
1299 LDFLAGS="$LDFLAGS $LDFLAGS_NOCOMBRELOC"
1301 AC_MSG_CHECKING([for -znocombreloc])
1302 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1303 [AC_MSG_RESULT(yes)],
1304 LDFLAGS_NOCOMBRELOC=
1305 [AC_MSG_RESULT(no)])
1307 LDFLAGS="$late_LDFLAGS"
1309 AC_CACHE_CHECK([whether addresses are sanitized],
1310 [emacs_cv_sanitize_address],
1313 [[#ifndef __has_feature
1314 #define __has_feature(f) 0
1316 #if defined __SANITIZE_ADDRESS__ || __has_feature (address_sanitizer)
1318 error "Addresses are not sanitized.";
1321 [emacs_cv_sanitize_address=yes],
1322 [emacs_cv_sanitize_address=no])])
1324 dnl The function dump-emacs will not be defined and temacs will do
1325 dnl (load "loadup") automatically unless told otherwise.
1326 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
1328 nacl) CANNOT_DUMP=yes ;;
1331 if test "$CANNOT_DUMP" = "yes"; then
1332 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1333 elif test "$emacs_cv_sanitize_address" = yes; then
1334 AC_MSG_WARN([[Addresses are sanitized; suggest CANNOT_DUMP=yes]])
1337 AC_SUBST(CANNOT_DUMP)
1340 UNEXEC_OBJ=unexelf.o
1342 # MSDOS uses unexcoff.o
1344 UNEXEC_OBJ=unexaix.o
1350 UNEXEC_OBJ=unexmacosx.o
1353 UNEXEC_OBJ=unexhp9k800.o
1356 UNEXEC_OBJ=unexw32.o
1359 # Use the Solaris dldump() function, called from unexsol.c, to dump
1360 # emacs, instead of the generic ELF dump code found in unexelf.c.
1361 # The resulting binary has a complete symbol table, and is better
1362 # for debugging and other observability tools (debuggers, pstack, etc).
1364 # If you encounter a problem using dldump(), please consider sending
1365 # a message to the OpenSolaris tools-linking mailing list:
1366 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1368 # It is likely that dldump() works with older Solaris too, but this has
1369 # not been tested, so for now this change is for Solaris 10 or newer.
1370 UNEXEC_OBJ=unexsol.o
1373 test "$CANNOT_DUMP" = "yes" && UNEXEC_OBJ=
1378 ## Let 'ld' find image libs and similar things in /usr/local/lib.
1379 ## The system compiler, GCC, has apparently been modified to not
1380 ## look there, contrary to what a stock GCC would do.
1381 ### It's not our place to do this. See bug#10313#17.
1382 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1387 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1388 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1392 ### It's not our place to do this. See bug#10313#17.
1393 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1398 ## Han Boetes <han@boetes.org> says this is necessary,
1399 ## otherwise Emacs dumps core on elf systems.
1400 LD_SWITCH_SYSTEM="-Z"
1403 AC_SUBST(LD_SWITCH_SYSTEM)
1405 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1407 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1408 ## which has not been defined yet. When this was handled with cpp,
1409 ## it was expanded to null when configure sourced the s/*.h file.
1410 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1411 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1412 ## (or somesuch), but because it is supposed to go at the _front_
1413 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1414 ## Compare with the gnu-linux case below, which added to the end
1415 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1416 ## LD_SWITCH_SYSTEM_TEMACS.
1419 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1426 AC_CHECK_DECL([__ELF__])
1427 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1428 ## With ELF, make sure that all common symbols get allocated to in the
1429 ## data section. Otherwise, the dump of temacs may miss variables in
1430 ## the shared library that have been initialized. For example, with
1431 ## GNU libc, __malloc_initialized would normally be resolved to the
1432 ## shared library's .bss section, which is fatal.
1433 if test "x$GCC" = "xyes"; then
1434 C_SWITCH_MACHINE="-fno-common"
1436 AC_MSG_ERROR([Non-GCC compilers are not supported.])
1439 dnl This was the unexalpha.c case. Removed in 24.1, 2010-07-24,
1440 dnl albeit under the mistaken assumption that said file
1441 dnl was no longer used.
1442 AC_MSG_ERROR([Non-ELF systems are not supported since Emacs 24.1.])
1446 AC_SUBST(C_SWITCH_MACHINE)
1448 AC_SUBST(UNEXEC_OBJ)
1451 ## Some programs in src produce warnings saying certain subprograms
1452 ## are too complex and need a MAXMEM value greater than 2000 for
1453 ## additional optimization. --nils@exp-math.uni-essen.de
1454 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1455 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1456 if test "$opsys" = "mingw32"; then
1457 case "$canonical" in
1458 x86_64-*-mingw*) C_SWITCH_SYSTEM="-mtune=generic" ;;
1459 *) C_SWITCH_SYSTEM="-mtune=pentium4" ;;
1462 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1463 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1464 AC_SUBST(C_SWITCH_SYSTEM)
1469 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1470 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1472 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1474 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1476 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1478 ## Motif needs -lgen.
1479 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1482 AC_SUBST(LIBS_SYSTEM)
1484 ### Make sure subsequent tests use flags consistent with the build flags.
1486 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1487 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1489 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1492 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C99 or better.
1493 AC_DEFUN([AC_TYPE_SIZE_T])
1494 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1495 AC_DEFUN([AC_TYPE_UID_T])
1497 # sqrt and other floating-point functions such as fmod and frexp
1498 # are found in -lm on many systems.
1500 AC_SEARCH_LIBS([sqrt], [m])
1501 if test "X$LIBS" = "X$OLD_LIBS"; then
1504 LIB_MATH=$ac_cv_search_sqrt
1508 dnl Current possibilities handled by sed (aix4-2 -> aix,
1509 dnl gnu-linux -> gnu/linux, etc.):
1510 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux.
1511 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1512 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1519 ## Adding -lm confuses the dynamic linker, so omit it.
1522 freebsd | dragonfly )
1523 SYSTEM_TYPE=berkeley-unix
1525 gnu-linux | gnu-kfreebsd )
1527 hpux10-20 | hpux11 )
1531 SYSTEM_TYPE=windows-nt
1533 dnl NB this may be adjusted below.
1535 SYSTEM_TYPE=berkeley-unix
1539 SYSTEM_TYPE=usg-unix-v
1545 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1546 [The type of system you are compiling for; sets 'system-type'.])
1549 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1550 pre_PKG_CONFIG_LIBS=$LIBS
1552 PKG_PROG_PKG_CONFIG(0.9.0)
1554 dnl EMACS_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4)
1555 dnl acts like PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4,
1556 dnl HAVE_GSTUFF=yes, HAVE_GSTUFF=no) -- see pkg-config man page --
1557 dnl except that it postprocesses CFLAGS as needed for --enable-gcc-warnings.
1558 dnl EMACS_CHECK_MODULES accepts optional 3rd and 4th arguments that
1559 dnl can take the place of the default HAVE_GSTUFF=yes and HAVE_GSTUFF=no
1561 AC_DEFUN([EMACS_CHECK_MODULES],
1562 [PKG_CHECK_MODULES([$1], [$2],
1563 [$1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1564 m4_default([$3], [HAVE_$1=yes])],
1565 [m4_default([$4], [HAVE_$1=no])])])
1568 if test "${with_sound}" != "no"; then
1569 # Sound support for GNU/Linux, the free BSDs, MinGW, and Cygwin.
1570 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h mmsystem.h],
1571 have_sound_header=yes, [], [
1573 #define WIN32_LEAN_AND_MEAN
1574 #include <windows.h>
1577 test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
1578 AC_MSG_ERROR([OSS sound support requested but not found.])
1580 if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
1581 # Emulation library used on NetBSD.
1582 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1583 test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
1584 AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
1585 dnl FIXME? If we did find ossaudio, should we set with_sound=bsd-ossaudio?
1586 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1590 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1592 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1593 EMACS_CHECK_MODULES([ALSA], [$ALSA_MODULES])
1594 if test $HAVE_ALSA = yes; then
1595 SAVE_CFLAGS="$CFLAGS"
1597 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1598 LIBS="$ALSA_LIBS $LIBS"
1599 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1600 emacs_alsa_normal=yes,
1601 emacs_alsa_normal=no)
1602 if test "$emacs_alsa_normal" != yes; then
1603 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1604 [[snd_lib_error_set_handler (0);]])],
1605 emacs_alsa_subdir=yes,
1606 emacs_alsa_subdir=no)
1607 if test "$emacs_alsa_subdir" != yes; then
1608 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1610 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1613 CFLAGS="$SAVE_CFLAGS"
1615 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1616 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1617 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1618 elif test "${with_sound}" = "alsa"; then
1619 AC_MSG_ERROR([ALSA sound support requested but not found.])
1621 fi dnl with_sound = alsa|yes
1623 dnl Define HAVE_SOUND if we have sound support. We know it works and
1624 dnl compiles only on the specified platforms. For others, it
1625 dnl probably doesn't make sense to try.
1626 dnl FIXME So surely we should bypass this whole section if not using
1627 dnl one of these platforms?
1628 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1630 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1631 dnl Adjust the --with-sound help text if you change this.
1632 gnu-linux|freebsd|netbsd|mingw32|cygwin)
1633 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1639 AC_SUBST(CFLAGS_SOUND)
1642 dnl checks for header files
1643 AC_CHECK_HEADERS_ONCE(
1650 sys/utsname.h pwd.h utmp.h util.h sys/prctl.h)
1652 AC_CACHE_CHECK([for ADDR_NO_RANDOMIZE],
1653 [emacs_cv_personality_addr_no_randomize],
1655 [AC_LANG_PROGRAM([[#include <sys/personality.h>]],
1656 [[personality (personality (0xffffffff)
1657 | ADDR_NO_RANDOMIZE)]])],
1658 [emacs_cv_personality_addr_no_randomize=yes],
1659 [emacs_cv_personality_addr_no_randomize=no])])
1660 if test $emacs_cv_personality_addr_no_randomize = yes; then
1661 AC_DEFINE([HAVE_PERSONALITY_ADDR_NO_RANDOMIZE], [1],
1662 [Define to 1 if personality flag ADDR_NO_RANDOMIZE exists.])
1665 # Note that Solaris has sys/sysinfo.h which defines struct
1666 # sysinfo as well. To make sure that we're using GNU/Linux
1667 # sysinfo, we explicitly set one of its fields.
1668 if test "$ac_cv_header_sys_sysinfo_h" = yes; then
1669 AC_MSG_CHECKING([if Linux sysinfo may be used])
1670 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1671 [[struct sysinfo si;
1674 emacs_cv_linux_sysinfo=yes, emacs_cv_linux_sysinfo=no)
1675 AC_MSG_RESULT($emacs_cv_linux_sysinfo)
1676 if test $emacs_cv_linux_sysinfo = yes; then
1677 AC_DEFINE([HAVE_LINUX_SYSINFO], 1, [Define to 1 if you have Linux sysinfo function.])
1678 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1679 [[struct sysinfo si; return si.mem_unit]])],
1680 AC_DEFINE(LINUX_SYSINFO_UNIT, 1,
1681 [Define to 1 if Linux sysinfo sizes are in multiples of mem_unit bytes.]))
1685 dnl On Solaris 8 there's a compilation warning for term.h because
1686 dnl it doesn't define 'bool'.
1687 AC_CHECK_HEADERS(term.h, , , -)
1689 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1691 if test $ac_cv_have_decl_sys_siglist != yes; then
1692 # For Tru64, at least:
1693 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1698 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1699 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1700 #if HAVE_SYS_SOCKET_H
1701 #include <sys/socket.h>
1703 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1704 #if HAVE_SYS_SOCKET_H
1705 #include <sys/socket.h>
1707 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1708 #if HAVE_SYS_SOCKET_H
1709 #include <sys/socket.h>
1712 dnl checks for structure members
1713 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1714 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1715 struct ifreq.ifr_addr,
1716 struct ifreq.ifr_addr.sa_len], , ,
1717 [AC_INCLUDES_DEFAULT
1718 #if HAVE_SYS_SOCKET_H
1719 #include <sys/socket.h>
1725 dnl Check for endianness.
1726 dnl AC_C_BIGENDIAN is done by gnulib.
1728 dnl check for Make feature
1731 dnl check if we have GCC and autodepend is on.
1732 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1733 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1734 SAVE_CFLAGS="$CFLAGS"
1735 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1736 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1737 CFLAGS="$SAVE_CFLAGS"
1738 test -f deps.d || ac_enable_autodepend=no
1740 AC_MSG_RESULT([$ac_enable_autodepend])
1741 if test $ac_enable_autodepend = yes; then
1745 AC_SUBST(AUTO_DEPEND)
1747 dnl checks for operating system services
1748 AC_SYS_LONG_FILE_NAMES
1750 #### Choose a window system.
1752 ## We leave window_system equal to none if
1753 ## we end up building without one. Any new window system should
1754 ## set window_system to an appropriate value and add objects to
1755 ## window-system-specific substs.
1759 if test "$no_x" != yes; then
1763 LD_SWITCH_X_SITE_RPATH=
1764 if test "${x_libraries}" != NONE; then
1765 if test -n "${x_libraries}"; then
1766 LD_SWITCH_X_SITE=-L`AS_ECHO(["$x_libraries"]) | sed -e 's/:/ -L/g'`
1767 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`
1768 AS_ECHO(["$x_libraries"]) | sed -e 's/:/ -Wl,-rpath,/g'
1771 x_default_search_path=""
1772 x_search_path=${x_libraries}
1773 if test -z "${x_search_path}"; then
1774 x_search_path=/usr/lib
1776 for x_library in `AS_ECHO(["$x_search_path:"]) | \
1777 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1779 ${x_library}/X11/%L/%T/%N%C%S:\
1780 ${x_library}/X11/%l/%T/%N%C%S:\
1781 ${x_library}/X11/%T/%N%C%S:\
1782 ${x_library}/X11/%L/%T/%N%S:\
1783 ${x_library}/X11/%l/%T/%N%S:\
1784 ${x_library}/X11/%T/%N%S"
1785 if test x"${x_default_search_path}" = x; then
1786 x_default_search_path=${x_search_path}
1788 x_default_search_path="${x_search_path}:${x_default_search_path}"
1792 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1794 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1795 C_SWITCH_X_SITE=$isystem`AS_ECHO(["$x_includes"]) | sed -e "s/:/ $isystem/g"`
1798 if test x"${x_includes}" = x; then
1799 bitmapdir=/usr/include/X11/bitmaps
1801 # accumulate include directories that have X11 bitmap subdirectories
1803 for bmd in `AS_ECHO(["$x_includes"]) | sed -e 's/:/ /g'`; do
1804 if test -d "${bmd}/X11/bitmaps"; then
1805 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1807 if test -d "${bmd}/bitmaps"; then
1808 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1811 bitmapdir=${bmd_acc#:}
1814 test "${with_ns}" = maybe && test "${opsys}" != darwin && with_ns=no
1816 NS_GNUSTEP_CONFIG=no
1819 tmp_CPPFLAGS="$CPPFLAGS"
1820 tmp_CFLAGS="$CFLAGS"
1821 CPPFLAGS="$CPPFLAGS -x objective-c"
1822 CFLAGS="$CFLAGS -x objective-c"
1825 if test "${with_ns}" != no; then
1826 if test "${opsys}" = darwin; then
1828 ns_appdir=`pwd`/nextstep/Emacs.app
1829 ns_appbindir=${ns_appdir}/Contents/MacOS
1830 ns_appresdir=${ns_appdir}/Contents/Resources
1831 ns_appsrc=Cocoa/Emacs.base
1832 ns_fontfile=macfont.o
1833 elif flags=$( (gnustep-config --objc-flags) 2>/dev/null); then
1835 NS_GNUSTEP_CONFIG=yes
1836 GNU_OBJC_CFLAGS=$flags
1837 LIBS_GNUSTEP=$(gnustep-config --gui-libs) || exit
1838 elif test -f $GNUSTEP_CONFIG_FILE; then
1840 dnl FIXME sourcing this several times in subshells seems inefficient.
1841 GNUSTEP_SYSTEM_HEADERS=$(
1842 . $GNUSTEP_CONFIG_FILE
1843 AS_ECHO(["$GNUSTEP_SYSTEM_HEADERS"])
1845 GNUSTEP_SYSTEM_LIBRARIES=$(
1846 . $GNUSTEP_CONFIG_FILE
1847 AS_ECHO(["$GNUSTEP_SYSTEM_LIBRARIES"])
1849 dnl I seemed to need these as well with GNUstep-startup 0.25.
1850 GNUSTEP_LOCAL_HEADERS=$(
1851 . $GNUSTEP_CONFIG_FILE
1852 AS_ECHO(["$GNUSTEP_LOCAL_HEADERS"])
1854 GNUSTEP_LOCAL_LIBRARIES=$(
1855 . $GNUSTEP_CONFIG_FILE
1856 AS_ECHO(["$GNUSTEP_LOCAL_LIBRARIES"])
1858 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1859 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1860 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1861 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1862 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1863 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1864 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1865 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1866 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1867 dnl If they had chosen to either define it or not, we could have
1868 dnl just used AC_CHECK_DECL here.
1869 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1870 emacs_cv_objc_exceptions,
1871 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1872 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1876 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1877 if test $emacs_cv_objc_exceptions = yes; then
1878 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1879 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1880 [Define if GNUstep uses ObjC exceptions.])
1881 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1884 if test $NS_IMPL_GNUSTEP = yes; then
1885 ns_appdir=`pwd`/nextstep/Emacs.app
1886 ns_appbindir=${ns_appdir}
1887 ns_appresdir=${ns_appdir}/Resources
1888 ns_appsrc=GNUstep/Emacs.base
1889 ns_fontfile=nsfont.o
1892 dnl This is only used while we test the NS headers, it gets reset below.
1893 CPPFLAGS="$CPPFLAGS $GNU_OBJC_CFLAGS"
1894 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1896 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1897 [AC_MSG_ERROR([The include files (AppKit/AppKit.h etc) that
1898 are required for a Nextstep build are missing or cannot be compiled.
1899 Either fix this, or re-configure with the option '--without-ns'.])])
1902 if test "${NS_IMPL_COCOA}" = "yes"; then
1903 AC_MSG_CHECKING([for Mac OS X 10.6 or newer])
1904 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1906 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1907 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1060
1910 error "Mac OS X 10.6 or newer required";
1914 ns_osx_have_106=yes,
1916 AC_MSG_RESULT([$ns_osx_have_106])
1918 if test $ns_osx_have_106 = no; then
1919 AC_MSG_ERROR([Mac OS X 10.6 or newer is required]);
1924 AC_SUBST(LIBS_GNUSTEP)
1926 INSTALL_ARCH_INDEP_EXTRA=install-etc
1927 ns_self_contained=no
1930 if test "${HAVE_NS}" = yes; then
1931 if test "$with_toolkit_scroll_bars" = "no"; then
1932 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1935 window_system=nextstep
1936 # set up packaging dirs
1937 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1938 ns_self_contained=yes
1939 prefix=${ns_appresdir}
1940 exec_prefix=${ns_appbindir}
1941 dnl This one isn't really used, only archlibdir is.
1942 libexecdir="\${ns_appbindir}/libexec"
1943 archlibdir="\${ns_appbindir}/libexec"
1944 etcdocdir="\${ns_appresdir}/etc"
1945 etcdir="\${ns_appresdir}/etc"
1946 dnl FIXME maybe set datarootdir instead.
1947 dnl That would also get applications, icons, man.
1948 infodir="\${ns_appresdir}/info"
1949 mandir="\${ns_appresdir}/man"
1950 lispdir="\${ns_appresdir}/lisp"
1951 test "$locallisppathset" = no && locallisppath=""
1952 INSTALL_ARCH_INDEP_EXTRA=
1955 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o $ns_fontfile"
1957 CFLAGS="$tmp_CFLAGS"
1958 CPPFLAGS="$tmp_CPPFLAGS"
1959 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1960 AC_SUBST(ns_self_contained)
1962 AC_SUBST(NS_OBJC_OBJ)
1973 if test "${with_w32}" != no; then
1976 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1977 [AC_MSG_ERROR(['--with-w32' was specified, but windows.h
1978 cannot be found.])])
1981 ## Using --with-w32 with MinGW is a no-op, but we allow it.
1984 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
1989 if test "${opsys}" = "mingw32"; then
1990 AC_MSG_CHECKING([whether Windows API headers are recent enough])
1991 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1992 #include <windows.h>
1993 #include <usp10.h>]],
1994 [[PIMAGE_NT_HEADERS pHeader;
1995 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
1996 [emacs_cv_w32api=yes
1999 AC_MSG_RESULT($emacs_cv_w32api)
2000 if test "${emacs_cv_w32api}" = "no"; then
2001 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
2012 if test "${HAVE_W32}" = "yes"; then
2013 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
2014 if test "$with_toolkit_scroll_bars" = "no"; then
2015 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for w32 build.])
2017 AC_CHECK_TOOL(WINDRES, [windres],
2018 [AC_MSG_ERROR([No resource compiler found.])])
2019 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
2020 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
2021 EMACSRES="emacs.res"
2022 case "$canonical" in
2023 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
2024 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
2026 dnl Construct something of the form "24,4,0,0" with 4 components.
2027 comma_version=`echo "${PACKAGE_VERSION}.0.0" | sed -e 's/\./,/g' -e 's/^\([[^,]]*,[[^,]]*,[[^,]]*,[[^,]]*\).*/\1/'`
2029 comma_space_version=`echo "$comma_version" | sed 's/,/, /g'`
2030 AC_SUBST(comma_version)
2031 AC_SUBST(comma_space_version)
2032 AC_CONFIG_FILES([nt/emacs.rc nt/emacsclient.rc])
2033 if test "${opsys}" = "cygwin"; then
2034 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
2035 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
2036 # Tell the linker that emacs.res is an object (which we compile from
2037 # the rc file), not a linker script.
2038 W32_RES_LINK="-Wl,emacs.res"
2040 UPDATE_MANIFEST=update-game-score.exe.manifest
2041 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
2042 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
2043 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
2044 W32_RES_LINK="\$(EMACSRES)"
2045 CLIENTRES="emacsclient.res"
2046 CLIENTW="emacsclientw\$(EXEEXT)"
2047 FIRSTFILE_OBJ=firstfile.o
2050 LIBS_ECLIENT="-lcomctl32"
2051 LIB_WSOCK32="-lwsock32"
2052 NTLIB="ntlib.$ac_objext"
2053 XARGS_LIMIT="-s 10000"
2059 AC_SUBST(EMACS_MANIFEST)
2060 AC_SUBST(UPDATE_MANIFEST)
2063 AC_SUBST(W32_RES_LINK)
2064 AC_SUBST(FIRSTFILE_OBJ)
2067 AC_SUBST(LIBS_ECLIENT)
2068 AC_SUBST(LIB_WSOCK32)
2070 AC_SUBST(XARGS_LIMIT)
2072 if test "${HAVE_W32}" = "yes"; then
2077 ## $window_system is now set to the window system we will
2085 case "${window_system}" in
2090 case "${with_x_toolkit}" in
2091 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
2092 motif ) USE_X_TOOLKIT=MOTIF ;;
2094 term_header=gtkutil.h
2095 dnl Don't set this for GTK. A lot of tests below assumes Xt when
2096 dnl USE_X_TOOLKIT is set.
2097 USE_X_TOOLKIT=none ;;
2098 gtk2 ) with_gtk2=yes
2099 term_header=gtkutil.h
2100 USE_X_TOOLKIT=none ;;
2101 gtk3 ) with_gtk3=yes
2102 term_header=gtkutil.h
2103 USE_X_TOOLKIT=none ;;
2104 no ) USE_X_TOOLKIT=none ;;
2105 dnl If user did not say whether to use a toolkit, make this decision later:
2106 dnl use the toolkit if we have gtk, or X11R5 or newer.
2107 * ) USE_X_TOOLKIT=maybe ;;
2111 term_header=nsterm.h
2114 term_header=w32term.h
2118 if test "$window_system" = none && test "X$with_x" != "Xno"; then
2119 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
2120 if test "$HAVE_XSERVER" = true ||
2121 test -n "$DISPLAY" ||
2123 for emacs_libX11 in /usr/lib/libX11.*; do break; done
2124 test "$emacs_libX11" != '/usr/lib/libX11.*'
2127 AC_MSG_ERROR([You seem to be running X, but no X development libraries
2128 were found. You should install the relevant development files for X
2129 and for the toolkit you want, such as Gtk+ or Motif. Also make
2130 sure you have development files for image handling, i.e.
2131 tiff, gif, jpeg, png and xpm.
2132 If you are sure you want Emacs compiled without X window support, pass
2138 # Does the opsystem file prohibit the use of the GNU malloc?
2139 # Assume not, until told otherwise.
2143 [whether malloc is Doug Lea style],
2144 [emacs_cv_var_doug_lea_malloc],
2145 [emacs_cv_var_doug_lea_malloc=no
2146 dnl Hooks do not work with address sanitization.
2147 if test "$emacs_cv_sanitize_address" != yes; then
2150 [[#include <malloc.h>
2151 static void hook (void) {}]],
2152 [[malloc_set_state (malloc_get_state ());
2153 __after_morecore_hook = hook;
2154 __malloc_initialize_hook = hook;]])],
2155 [emacs_cv_var_doug_lea_malloc=yes])
2157 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
2162 test "$CANNOT_DUMP" = yes ||
2164 ## darwin ld insists on the use of malloc routines in the System framework.
2165 darwin | mingw32 | nacl | sol2-10) ;;
2166 cygwin) hybrid_malloc=yes
2168 *) test "$ac_cv_func_sbrk" = yes && system_malloc=$emacs_cv_sanitize_address;;
2171 if test "${system_malloc}" != yes && test "${doug_lea_malloc}" != yes \
2172 && test "${UNEXEC_OBJ}" = unexelf.o; then
2178 if test "${system_malloc}" = "yes"; then
2179 AC_DEFINE([SYSTEM_MALLOC], 1,
2180 [Define to 1 to use the system memory allocator, even if it is not
2184 (The GNU allocators don't work with this system configuration.)"
2186 elif test "$hybrid_malloc" = yes; then
2187 AC_DEFINE(HYBRID_MALLOC, 1,
2188 [Define to use gmalloc before dumping and the system malloc after.])
2191 GNU_MALLOC_reason=" (only before dumping)"
2192 GMALLOC_OBJ=gmalloc.o
2195 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
2196 VMLIMIT_OBJ=vm-limit.o
2198 AC_CHECK_HEADERS([sys/vlimit.h])
2199 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
2202 [[extern char data_start[]; char ch;]],
2203 [[return data_start < &ch;]])],
2204 [emacs_cv_data_start=yes],
2205 [emacs_cv_data_start=no])])
2206 if test $emacs_cv_data_start = yes; then
2207 AC_DEFINE([HAVE_DATA_START], 1,
2208 [Define to 1 if data_start is the address of the start
2209 of the main data segment.])
2212 AC_SUBST([HYBRID_MALLOC])
2213 AM_CONDITIONAL([HYBRID_MALLOC_LIB], [test -n "$HYBRID_MALLOC"])
2214 AC_SUBST(GMALLOC_OBJ)
2215 AC_SUBST(VMLIMIT_OBJ)
2217 if test "$doug_lea_malloc" = "yes" && test "$hybrid_malloc" != yes; then
2218 if test "$GNU_MALLOC" = yes ; then
2220 (Using Doug Lea's new malloc from the GNU C Library.)"
2222 AC_DEFINE(DOUG_LEA_MALLOC, 1,
2223 [Define to 1 if the system memory allocator is Doug Lea style,
2224 with malloc hooks and malloc_set_state.])
2226 ## Use mmap directly for allocating larger buffers.
2227 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
2228 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
2229 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
2231 mingw32|gnu*) REL_ALLOC=no ;;
2235 if test x"${REL_ALLOC}" = x; then
2236 REL_ALLOC=${GNU_MALLOC}
2239 use_mmap_for_buffers=no
2241 mingw32) use_mmap_for_buffers=yes ;;
2245 if test $use_mmap_for_buffers = yes; then
2246 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
2250 LIBS="$LIBS_SYSTEM $LIBS"
2252 dnl FIXME replace main with a function we actually want from this library.
2253 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
2255 dnl Check for the POSIX thread library.
2257 AC_CHECK_HEADERS_ONCE(pthread.h)
2258 if test "$ac_cv_header_pthread_h" && test "$opsys" != "mingw32"; then
2259 AC_CACHE_CHECK([for pthread library],
2260 [emacs_cv_pthread_lib],
2261 [emacs_cv_pthread_lib=no
2263 for emacs_pthread_lib in 'none needed' -lpthread; do
2264 case $emacs_pthread_lib in
2265 -*) LIBS="$OLD_LIBS $emacs_pthread_lib";;
2269 [[#include <pthread.h>
2271 sigset_t old_mask, new_mask;
2272 void noop (void) {}]],
2273 [[pthread_t th = pthread_self ();
2275 status += pthread_create (&th, 0, 0, 0);
2276 status += pthread_sigmask (SIG_BLOCK, &new_mask, &old_mask);
2277 status += pthread_kill (th, 0);
2278 #if ! (defined SYSTEM_MALLOC || defined HYBRID_MALLOC \
2279 || defined DOUG_LEA_MALLOC)
2280 /* Test for pthread_atfork only if gmalloc uses it,
2281 as older-style hosts like MirBSD 10 lack it. */
2282 status += pthread_atfork (noop, noop, noop);
2285 [emacs_cv_pthread_lib=$emacs_pthread_lib])
2287 if test "$emacs_cv_pthread_lib" != no; then
2291 if test "$emacs_cv_pthread_lib" != no; then
2292 AC_DEFINE([HAVE_PTHREAD], 1, [Define to 1 if you have POSIX threads.])
2293 case $emacs_cv_pthread_lib in
2294 -*) LIB_PTHREAD=$emacs_cv_pthread_lib;;
2296 ac_cv_func_pthread_sigmask=yes
2297 # Some systems optimize for single-threaded programs by default, and
2298 # need special flags to disable these optimizations. For example, the
2299 # definition of 'errno' in <errno.h>.
2302 AC_DEFINE([_REENTRANT], 1,
2303 [Define to 1 if your system requires this in multithreaded code.]);;
2305 AC_DEFINE([_THREAD_SAFE], 1,
2306 [Define to 1 if your system requires this in multithreaded code.]);;
2310 AC_SUBST([LIB_PTHREAD])
2312 AC_MSG_CHECKING([for thread support])
2314 if test "$with_threads" = yes; then
2315 if test "$emacs_cv_pthread_lib" != no; then
2316 AC_DEFINE(THREADS_ENABLED, 1,
2317 [Define to 1 if you want elisp thread support.])
2319 elif test "${opsys}" = "mingw32"; then
2320 dnl MinGW can do native Windows threads even without pthreads
2321 AC_DEFINE(THREADS_ENABLED, 1,
2322 [Define to 1 if you want elisp thread support.])
2326 AC_MSG_RESULT([$threads_enabled])
2328 dnl Check for need for bigtoc support on IBM AIX
2332 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
2334 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
2335 *) gdb_cv_bigtoc=-bbigtoc ;;
2338 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
2339 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
2344 # Change CFLAGS, CPPFLAGS, and LIBS temporarily so that C_SWITCH_X_SITE
2345 # is for the tests that follow. We set them back later on.
2347 REAL_CFLAGS="$CFLAGS"
2348 REAL_CPPFLAGS="$CPPFLAGS"
2351 if test "${HAVE_X11}" = "yes"; then
2352 DEFS="$C_SWITCH_X_SITE $DEFS"
2353 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2355 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2356 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2358 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2359 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2360 # but it's more convenient here to set LD_RUN_PATH since this
2361 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2362 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2363 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2367 if test "${opsys}" = "gnu-linux"; then
2368 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2369 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2370 [[XOpenDisplay ("foo");]])],
2371 [xgnu_linux_first_failure=no],
2372 [xgnu_linux_first_failure=yes])
2373 if test "${xgnu_linux_first_failure}" = "yes"; then
2374 OLD_CPPFLAGS="$CPPFLAGS"
2376 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2377 LIBS="$LIBS -b i486-linuxaout"
2378 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2379 [[XOpenDisplay ("foo");]])],
2380 [xgnu_linux_second_failure=no],
2381 [xgnu_linux_second_failure=yes])
2382 if test "${xgnu_linux_second_failure}" = "yes"; then
2383 # If we get the same failure with -b, there is no use adding -b.
2384 # So leave it out. This plays safe.
2387 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2388 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2391 CPPFLAGS=$OLD_CPPFLAGS
2398 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2399 # header files included from there.
2400 AC_MSG_CHECKING(for Xkb)
2401 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2402 #include <X11/XKBlib.h>]],
2403 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2404 emacs_xkb=yes, emacs_xkb=no)
2405 AC_MSG_RESULT($emacs_xkb)
2406 if test $emacs_xkb = yes; then
2407 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2410 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2411 XScreenNumberOfScreen)
2414 if test "${window_system}" = "x11"; then
2415 AC_MSG_CHECKING(X11 version 6)
2416 AC_CACHE_VAL(emacs_cv_x11_version_6,
2417 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2418 [[#if XlibSpecificationRelease < 6
2421 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2422 if test $emacs_cv_x11_version_6 = yes; then
2423 AC_MSG_RESULT(6 or newer)
2424 AC_DEFINE(HAVE_X11R6, 1,
2425 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2426 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2427 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2431 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2432 [Define if you have usable X11R6-style XIM support.])
2436 AC_MSG_RESULT(before 6)
2441 ### Use -lrsvg-2 if available, unless '--with-rsvg=no' is specified.
2443 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2444 if test "${with_rsvg}" != "no"; then
2445 RSVG_REQUIRED=2.11.0
2446 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2448 EMACS_CHECK_MODULES([RSVG], [$RSVG_MODULE])
2449 AC_SUBST(RSVG_CFLAGS)
2452 if test $HAVE_RSVG = yes; then
2453 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2454 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2455 # Windows loads librsvg dynamically
2456 if test "${opsys}" = "mingw32"; then
2464 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${HAVE_W32}" = "yes"; then
2465 if test "${with_imagemagick}" != "no"; then
2466 ## 6.3.5 is the earliest version known to work; see Bug#17339.
2467 ## 6.8.2 makes Emacs crash; see Bug#13867.
2468 IMAGEMAGICK_MODULE="Wand >= 6.3.5 Wand != 6.8.2"
2469 EMACS_CHECK_MODULES([IMAGEMAGICK], [$IMAGEMAGICK_MODULE])
2470 AC_SUBST(IMAGEMAGICK_CFLAGS)
2471 AC_SUBST(IMAGEMAGICK_LIBS)
2473 if test $HAVE_IMAGEMAGICK = yes; then
2474 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2477 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2478 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2479 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers MagickAutoOrientImage)
2486 AC_CHECK_LIB(anl, getaddrinfo_a, HAVE_GETADDRINFO_A=yes)
2487 if test "${HAVE_GETADDRINFO_A}" = "yes"; then
2488 AC_DEFINE(HAVE_GETADDRINFO_A, 1,
2489 [Define to 1 if you have getaddrinfo_a for asynchronous DNS resolution.])
2490 GETADDRINFO_A_LIBS="-lanl"
2491 AC_SUBST(GETADDRINFO_A_LIBS)
2496 gtk_term_header=$term_header
2499 if test "${opsys}" != "mingw32"; then
2500 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2503 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2505 dnl Checks for libraries.
2506 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2507 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2508 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2509 AC_MSG_ERROR($GTK_PKG_ERRORS)
2511 if test "$pkg_check_gtk" = "yes"; then
2512 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2513 GTK_OBJ=emacsgtkfixed.o
2514 gtk_term_header=gtkutil.h
2515 USE_GTK_TOOLKIT="GTK3"
2516 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2517 AC_DEFINE([GDK_DISABLE_DEPRECATION_WARNINGS], [1],
2518 [Define to 1 to disable GTK+/GDK deprecation warnings.])
2519 AC_DEFINE([GLIB_DISABLE_DEPRECATION_WARNINGS], [1],
2520 [Define to 1 to disable Glib deprecation warnings.])
2524 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2528 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2531 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2533 dnl Checks for libraries.
2534 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2535 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2536 if test "$pkg_check_gtk" = "no" &&
2537 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2539 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2541 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2548 if test x"$pkg_check_gtk" = xyes; then
2551 CFLAGS="$CFLAGS $GTK_CFLAGS"
2552 LIBS="$GTK_LIBS $LIBS"
2553 dnl Try to compile a simple GTK program.
2554 AC_MSG_CHECKING([whether GTK compiles])
2558 [[/* Check the Gtk and Glib APIs. */
2559 #include <gtk/gtk.h>
2560 #include <glib-object.h>
2562 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2566 GtkSettings *gs = 0;
2567 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2568 strict C prohibits this. Use gtk_main_iteration to test that the
2569 libraries are there. */
2570 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2571 0, 0, 0, G_CALLBACK (callback), 0))
2572 gtk_main_iteration ();
2575 AC_MSG_RESULT([$GTK_COMPILES])
2576 if test "${GTK_COMPILES}" != "yes"; then
2578 if test "$USE_X_TOOLKIT" != "maybe"; then
2579 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2582 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2584 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2585 GTK_OBJ="gtkutil.o $GTK_OBJ"
2586 term_header=$gtk_term_header
2588 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2589 closing open displays. This is no problem if you just use
2590 one display, but if you use more than one and close one of them
2592 See http://bugzilla.gnome.org/show_bug.cgi?id=85715]])
2600 if test "${HAVE_GTK}" = "yes"; then
2602 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2603 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2604 if test "$with_toolkit_scroll_bars" != no; then
2605 with_toolkit_scroll_bars=yes
2608 dnl Check if we have the old file selection dialog declared and
2609 dnl in the link library. In 2.x it may be in the library,
2610 dnl but not declared if deprecated featured has been selected out.
2611 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2612 HAVE_GTK_FILE_SELECTION=no
2613 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2614 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2615 #include <gtk/gtk.h>])
2616 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2617 AC_CHECK_FUNCS(gtk_file_selection_new)
2620 dnl Same as above for gtk_handle_box.
2621 HAVE_GTK_HANDLE_BOX=no
2622 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2623 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2624 #include <gtk/gtk.h>])
2625 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2626 AC_CHECK_FUNCS(gtk_handle_box_new)
2629 dnl Same as above for gtk_tearoff_menu_item.
2630 HAVE_GTK_TEAROFF_MENU_ITEM=no
2631 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2632 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2633 #include <gtk/gtk.h>])
2634 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2635 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2638 dnl Check for functions introduced in 2.14 and later.
2639 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2640 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2641 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2642 gtk_orientable_set_orientation \
2643 gtk_window_set_has_resize_grip)
2645 term_header=gtkutil.h
2649 dnl Enable xwidgets if GTK3 and WebKitGTK+ are available.
2652 if test "$with_xwidgets" != "no"; then
2653 test "$USE_GTK_TOOLKIT" = "GTK3" && test "$window_system" != "none" ||
2654 AC_MSG_ERROR([xwidgets requested but gtk3 not used.])
2656 WEBKIT_REQUIRED=2.12
2657 WEBKIT_MODULES="webkit2gtk-4.0 >= $WEBKIT_REQUIRED"
2658 EMACS_CHECK_MODULES([WEBKIT], [$WEBKIT_MODULES])
2659 HAVE_XWIDGETS=$HAVE_WEBKIT
2660 test $HAVE_XWIDGETS = yes ||
2661 AC_MSG_ERROR([xwidgets requested but WebKitGTK+ not found.])
2663 XWIDGETS_OBJ=xwidget.o
2664 AC_DEFINE([HAVE_XWIDGETS], 1, [Define to 1 if you have xwidgets support.])
2666 AC_SUBST(XWIDGETS_OBJ)
2671 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2672 dnl other platforms.
2675 if test "${with_dbus}" = "yes"; then
2676 EMACS_CHECK_MODULES([DBUS], [dbus-1 >= 1.0])
2677 if test "$HAVE_DBUS" = yes; then
2678 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2679 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2680 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2683 LIBS="$LIBS $DBUS_LIBS"
2684 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2685 dbus_type_is_valid \
2686 dbus_validate_bus_name \
2687 dbus_validate_path \
2688 dbus_validate_interface \
2689 dbus_validate_member)
2694 AC_SUBST(DBUS_CFLAGS)
2698 dnl GSettings has been tested under GNU/Linux only.
2700 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2701 EMACS_CHECK_MODULES([GSETTINGS], [gio-2.0 >= 2.26])
2702 if test "$HAVE_GSETTINGS" = "yes"; then
2704 CFLAGS="$CFLAGS $GSETTINGS_CFLAGS"
2706 LIBS="$LIBS $GSETTINGS_LIBS"
2707 AC_MSG_CHECKING([whether GSettings is in gio])
2710 [[/* Check that gsettings really is present. */
2711 #include <glib-object.h>
2712 #include <gio/gio.h>
2715 GSettings *settings;
2716 GVariant *val = g_settings_get_value (settings, "");
2718 [], HAVE_GSETTINGS=no)
2719 AC_MSG_RESULT([$HAVE_GSETTINGS])
2721 if test "$HAVE_GSETTINGS" = "yes"; then
2722 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2723 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2724 SETTINGS_LIBS="$GSETTINGS_LIBS"
2731 dnl GConf has been tested under GNU/Linux only.
2732 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2734 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2735 EMACS_CHECK_MODULES([GCONF], [gconf-2.0 >= 2.13])
2736 if test "$HAVE_GCONF" = yes; then
2737 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2738 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2739 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2740 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2744 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2745 EMACS_CHECK_MODULES([GOBJECT], [gobject-2.0 >= 2.0])
2746 if test "$HAVE_GOBJECT" = "yes"; then
2747 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2748 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2750 SAVE_CFLAGS="$CFLAGS"
2752 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2753 LIBS="$SETTINGS_LIBS $LIBS"
2754 CFLAGS="$SAVE_CFLAGS"
2757 AC_SUBST(SETTINGS_CFLAGS)
2758 AC_SUBST(SETTINGS_LIBS)
2761 dnl SELinux is available for GNU/Linux only.
2764 if test "${with_selinux}" = "yes"; then
2765 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2766 if test "$HAVE_LIBSELINUX" = yes; then
2767 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2768 LIBSELINUX_LIBS=-lselinux
2771 AC_SUBST(LIBSELINUX_LIBS)
2774 if test "${with_gnutls}" = "yes" ; then
2775 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.12.2],
2776 [HAVE_GNUTLS=yes], [HAVE_GNUTLS=no])
2777 if test "${HAVE_GNUTLS}" = "yes"; then
2778 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2779 EMACS_CHECK_MODULES([LIBGNUTLS3], [gnutls >= 3.0.0],
2780 [AC_DEFINE(HAVE_GNUTLS3, 1, [Define if using GnuTLS v3.])], [])
2783 # Windows loads GnuTLS dynamically
2784 if test "${opsys}" = "mingw32"; then
2789 AC_SUBST(LIBGNUTLS_LIBS)
2790 AC_SUBST(LIBGNUTLS_CFLAGS)
2793 if test "${with_libsystemd}" = "yes" ; then
2794 dnl This code has been tested with libsystemd 222 and later.
2795 dnl FIXME: Find the earliest version number for which Emacs should work,
2796 dnl and change '222' to that number.
2797 EMACS_CHECK_MODULES([LIBSYSTEMD], [libsystemd >= 222],
2798 [HAVE_LIBSYSTEMD=yes], [HAVE_LIBSYSTEMD=no])
2799 if test "${HAVE_LIBSYSTEMD}" = "yes"; then
2800 AC_DEFINE(HAVE_LIBSYSTEMD, 1, [Define if using libsystemd.])
2804 AC_SUBST(LIBSYSTEMD_LIBS)
2805 AC_SUBST(LIBSYSTEMD_CFLAGS)
2810 dnl MS Windows native file monitor is available for mingw32 only.
2811 case $with_file_notification,$opsys in
2813 AC_MSG_ERROR(['--with-file-notification=w32' was specified, but
2814 this is only supported on MS-Windows native and MinGW32 builds.
2815 Consider using gfile instead.])
2817 w32,* | yes,mingw32)
2818 AC_CHECK_HEADER(windows.h)
2819 if test "$ac_cv_header_windows_h" = yes ; then
2820 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2821 NOTIFY_OBJ=w32notify.o
2822 NOTIFY_SUMMARY="yes (w32)"
2826 dnl inotify is available only on GNU/Linux.
2827 case $with_file_notification,$NOTIFY_OBJ in
2829 AC_CHECK_HEADER(sys/inotify.h)
2830 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2831 AC_CHECK_FUNC(inotify_init1)
2832 if test "$ac_cv_func_inotify_init1" = yes; then
2833 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2834 NOTIFY_OBJ=inotify.o
2835 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2840 dnl kqueue is available on BSD-like systems.
2841 case $with_file_notification,$NOTIFY_OBJ in
2843 EMACS_CHECK_MODULES([KQUEUE], [libkqueue])
2844 if test "$HAVE_KQUEUE" = "yes"; then
2845 AC_DEFINE(HAVE_KQUEUE, 1, [Define to 1 to use kqueue.])
2846 CPPFLAGS="$CPPFLAGS -I/usr/include/kqueue"
2847 NOTIFY_CFLAGS=$KQUEUE_CFLAGS
2848 NOTIFY_LIBS=$KQUEUE_LIBS
2850 NOTIFY_SUMMARY="yes -lkqueue"
2852 AC_SEARCH_LIBS(kqueue, [])
2853 if test "$ac_cv_search_kqueue" != no; then
2854 AC_DEFINE(HAVE_KQUEUE, 1, [Define to 1 to use kqueue.])
2856 NOTIFY_SUMMARY="yes (kqueue)"
2861 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2862 dnl has been added in glib 2.24. It has been tested under
2864 case $with_file_notification,$NOTIFY_OBJ in
2866 if test "${HAVE_NS}" = yes; then
2867 AC_MSG_ERROR(['--with-file-notification=gfile' is not supported in NextStep builds.
2868 Consider kqueue instead.])
2870 EMACS_CHECK_MODULES([GFILENOTIFY], [gio-2.0 >= 2.24])
2871 if test "$HAVE_GFILENOTIFY" = "yes"; then
2872 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2873 NOTIFY_CFLAGS=$GFILENOTIFY_CFLAGS
2874 NOTIFY_LIBS=$GFILENOTIFY_LIBS
2875 NOTIFY_OBJ=gfilenotify.o
2876 NOTIFY_SUMMARY="yes -lgio (gfile)"
2881 case $with_file_notification,$NOTIFY_OBJ in
2882 yes,* | no,* | *,?*) ;;
2883 *) AC_MSG_ERROR([File notification '$with_file_notification' requested but requirements not found.]) ;;
2886 if test -n "$NOTIFY_OBJ"; then
2887 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2889 AC_SUBST(NOTIFY_CFLAGS)
2890 AC_SUBST(NOTIFY_LIBS)
2891 AC_SUBST(NOTIFY_OBJ)
2893 dnl Do not put whitespace before the #include statements below.
2894 dnl Older compilers (eg sunos4 cc) choke on it.
2897 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2898 if test "$with_xaw3d" != no; then
2899 AC_CACHE_VAL(emacs_cv_xaw3d,
2900 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2901 #include <X11/Intrinsic.h>
2902 #include <X11/Xaw3d/Simple.h>]],
2904 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2905 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2906 emacs_cv_xaw3d=no)])
2910 if test $emacs_cv_xaw3d = yes; then
2911 AC_MSG_CHECKING(for xaw3d)
2912 AC_MSG_RESULT([yes; using Lucid toolkit])
2916 AC_DEFINE(HAVE_XAW3D, 1,
2917 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2919 AC_MSG_CHECKING(for xaw3d)
2921 AC_MSG_CHECKING(for libXaw)
2922 AC_CACHE_VAL(emacs_cv_xaw,
2923 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2924 #include <X11/Intrinsic.h>
2925 #include <X11/Xaw/Simple.h>]],
2929 if test $emacs_cv_xaw = yes; then
2930 AC_MSG_RESULT([yes; using Lucid toolkit])
2933 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2934 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2936 AC_MSG_ERROR([No X toolkit could be found.
2937 If you are sure you want Emacs compiled without an X toolkit, pass
2939 to configure. Otherwise, install the development libraries for the toolkit
2940 that you want to use (e.g. Gtk+) and re-run configure.])
2945 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2949 if test "${USE_X_TOOLKIT}" != "none"; then
2950 AC_MSG_CHECKING(X11 toolkit version)
2951 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2952 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2953 [[#if XtSpecificationRelease < 6
2956 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2957 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2958 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2959 AC_MSG_RESULT(6 or newer)
2960 AC_DEFINE(HAVE_X11XTR6, 1,
2961 [Define to 1 if you have the X11R6 or newer version of Xt.])
2962 LIBXTR6="-lSM -lICE"
2964 ## Use libw.a along with X11R6 Xt.
2965 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2968 AC_MSG_RESULT(before 6)
2971 dnl If using toolkit, check whether libXmu.a exists.
2972 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2974 if test x$HAVE_X11XTR6 = xyes; then
2975 OTHERLIBS='-lXt -lSM -lICE'
2979 AC_SEARCH_LIBS([XmuConvertStandardSelection], [Xmu], [], [], [$OTHERLIBS])
2980 if test "X$LIBS" != "X$OLDLIBS"; then
2981 LIBXMU=$ac_cv_search_XmuConvertStandardSelection
2984 dnl ac_cv_search_XmuConvertStandardSelection is also referenced below.
2990 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2991 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2992 if test -d /usr/include/openmotif; then
2993 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2994 emacs_cv_openmotif=yes
2995 case "$canonical" in
2996 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2997 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
3000 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
3003 emacs_cv_openmotif=no
3005 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
3006 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
3007 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
3010 Motif version prior to 2.1.
3012 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
3013 if test $emacs_cv_motif_version_2_1 = yes; then
3014 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
3015 if test x$emacs_cv_openmotif = xyes; then
3016 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
3019 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
3020 # We put this in CFLAGS temporarily to precede other -I options
3021 # that might be in CFLAGS temporarily.
3022 # We put this in CPPFLAGS where it precedes the other -I options.
3023 OLD_CPPFLAGS=$CPPFLAGS
3025 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
3026 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
3027 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
3029 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
3030 if test $emacs_cv_lesstif = yes; then
3031 # Make sure this -I option remains in CPPFLAGS after it is set
3032 # back to REAL_CPPFLAGS.
3033 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
3034 # have those other -I options anyway. Ultimately, having this
3035 # directory ultimately in CPPFLAGS will be enough.
3036 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
3037 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
3040 CPPFLAGS=$OLD_CPPFLAGS
3043 AC_CHECK_HEADER([Xm/BulletinB.h], [],
3044 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
3047 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
3048 dnl using Motif or Xaw3d is available, and unless
3049 dnl --with-toolkit-scroll-bars=no was specified.
3051 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
3052 [Define to 1 if we should use toolkit scroll bars.])dnl
3053 USE_TOOLKIT_SCROLL_BARS=no
3054 if test "${with_toolkit_scroll_bars}" != "no"; then
3055 if test "${USE_X_TOOLKIT}" != "none"; then
3056 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
3057 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3059 USE_TOOLKIT_SCROLL_BARS=yes
3060 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
3061 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3062 USE_TOOLKIT_SCROLL_BARS=yes
3064 elif test "${HAVE_GTK}" = "yes"; then
3065 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3066 USE_TOOLKIT_SCROLL_BARS=yes
3067 elif test "${HAVE_NS}" = "yes"; then
3068 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3069 USE_TOOLKIT_SCROLL_BARS=yes
3070 elif test "${HAVE_W32}" = "yes"; then
3071 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3072 USE_TOOLKIT_SCROLL_BARS=yes
3076 dnl See if XIM is available.
3077 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
3078 #include <X11/Xlib.h>
3079 #include <X11/Xresource.h>]],
3080 [[XIMProc callback;]])],
3082 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
3085 dnl '--with-xim' now controls only the initial value of use_xim at run time.
3087 if test "${with_xim}" != "no"; then
3088 AC_DEFINE(USE_XIM, 1,
3089 [Define to 1 if we should use XIM, if it is available.])
3093 if test "${HAVE_XIM}" != "no"; then
3095 if test "$GCC" = yes; then
3096 CFLAGS="$CFLAGS --pedantic-errors"
3098 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
3099 #include <X11/Xlib.h>
3100 #include <X11/Xresource.h>]],
3106 XPointer *client_data;
3108 /* If we're not using GCC, it's probably not XFree86, and this is
3109 probably right, but we can't use something like --pedantic-errors. */
3110 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
3111 char*, XIMProc, XPointer*);
3113 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
3115 [emacs_cv_arg6_star=yes])
3116 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
3117 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
3118 either XPointer or XPointer*.])dnl
3119 if test "$emacs_cv_arg6_star" = yes; then
3120 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
3122 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
3127 ### Start of font-backend (under any platform) section.
3128 # (nothing here yet -- this is a placeholder)
3129 ### End of font-backend (under any platform) section.
3131 ### Start of font-backend (under X11) section.
3132 if test "${HAVE_X11}" = "yes"; then
3133 ## Use -lXft if available, unless '--with-xft=no'.
3135 if test "x${with_x}" = "xno"; then
3139 if test "$with_xft" != no; then
3140 EMACS_CHECK_MODULES([FONTCONFIG], [fontconfig >= 2.2.0])
3141 with_xft=$HAVE_FONTCONFIG
3144 if test "x${with_xft}" != "xno"; then
3146 EMACS_CHECK_MODULES([XFT], [xft >= 0.13.0], [], [HAVE_XFT=no])
3147 ## Because xftfont.c uses XRenderQueryExtension, we also
3148 ## need to link to -lXrender.
3150 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
3151 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
3152 OLD_CPPFLAGS="$CPPFLAGS"
3153 OLD_CFLAGS="$CFLAGS"
3155 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
3156 CFLAGS="$CFLAGS $XFT_CFLAGS"
3157 XFT_LIBS="-lXrender $XFT_LIBS"
3158 LIBS="$XFT_LIBS $LIBS"
3159 AC_CHECK_HEADER(X11/Xft/Xft.h,
3160 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
3161 [[#include <X11/X.h>]])
3163 if test "${HAVE_XFT}" = "yes"; then
3164 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
3166 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
3167 fi # "${HAVE_XFT}" = "yes"
3168 CPPFLAGS=$OLD_CPPFLAGS
3171 fi # "$HAVE_XFT" != no
3172 fi # "x${with_xft}" != "xno"
3174 ## We used to allow building with FreeType and without Xft.
3175 ## However, the ftx font backend driver is not in good shape.
3176 if test "$HAVE_XFT" != "yes"; then
3177 dnl For the "Does Emacs use" message at the end.
3181 dnl Strict linkers fail with
3182 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
3183 dnl if -lfreetype is not specified.
3184 dnl The following is needed to set FREETYPE_LIBS.
3185 EMACS_CHECK_MODULES([FREETYPE], [freetype2])
3187 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
3191 if test "${HAVE_FREETYPE}" = "yes"; then
3192 AC_DEFINE(HAVE_FREETYPE, 1,
3193 [Define to 1 if using the freetype and fontconfig libraries.])
3194 if test "${with_libotf}" != "no"; then
3195 EMACS_CHECK_MODULES([LIBOTF], [libotf])
3196 if test "$HAVE_LIBOTF" = "yes"; then
3197 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
3198 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
3199 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
3200 HAVE_OTF_GET_VARIATION_GLYPHS=no)
3201 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
3202 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
3203 [Define to 1 if libotf has OTF_get_variation_glyphs.])
3207 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
3208 dnl Does the new font backend require it, or can it work without it?
3212 if test "${HAVE_LIBOTF}" = yes; then
3213 if test "${with_m17n_flt}" != "no"; then
3214 EMACS_CHECK_MODULES([M17N_FLT], [m17n-flt])
3215 if test "$HAVE_M17N_FLT" = "yes"; then
3216 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
3227 ### End of font-backend (under X11) section.
3229 AC_SUBST(FREETYPE_CFLAGS)
3230 AC_SUBST(FREETYPE_LIBS)
3231 AC_SUBST(FONTCONFIG_CFLAGS)
3232 AC_SUBST(FONTCONFIG_LIBS)
3233 AC_SUBST(LIBOTF_CFLAGS)
3234 AC_SUBST(LIBOTF_LIBS)
3235 AC_SUBST(M17N_FLT_CFLAGS)
3236 AC_SUBST(M17N_FLT_LIBS)
3239 if test "${HAVE_X11}" = "yes"; then
3240 if test "${with_cairo}" != "no"; then
3241 CAIRO_REQUIRED=1.12.0
3242 CAIRO_MODULE="cairo >= $CAIRO_REQUIRED"
3243 EMACS_CHECK_MODULES(CAIRO, $CAIRO_MODULE)
3244 if test $HAVE_CAIRO = yes; then
3245 AC_DEFINE(USE_CAIRO, 1, [Define to 1 if using cairo.])
3247 AC_MSG_ERROR([cairo requested but not found.])
3250 CFLAGS="$CFLAGS $CAIRO_CFLAGS"
3251 LIBS="$LIBS $CAIRO_LIBS"
3252 AC_SUBST(CAIRO_CFLAGS)
3253 AC_SUBST(CAIRO_LIBS)
3257 if test "${HAVE_X11}" = "yes"; then
3258 AC_CHECK_HEADER(X11/Xlib-xcb.h,
3259 AC_CHECK_LIB(xcb, xcb_translate_coordinates, HAVE_XCB=yes))
3260 if test "${HAVE_XCB}" = "yes"; then
3261 AC_CHECK_LIB(X11-xcb, XGetXCBConnection, HAVE_X11_XCB=yes)
3262 if test "${HAVE_X11_XCB}" = "yes"; then
3263 AC_DEFINE(USE_XCB, 1,
3264 [Define to 1 if you have the XCB library and X11-XCB library for mixed
3265 X11/XCB programming.])
3266 XCB_LIBS="-lX11-xcb -lxcb"
3272 ### Use -lXpm if available, unless '--with-xpm=no'.
3273 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
3274 ### The Cygwin-w32 build uses <noX/xpm.h> instead of <X11/xpm.h>, so
3275 ### we need to set LDFLAGS accordingly.
3278 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
3279 if test "${with_xpm}" != "no"; then
3280 SAVE_LDFLAGS="$LDFLAGS"
3281 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
3282 AC_CHECK_HEADER(noX/xpm.h,
3283 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
3284 if test "${HAVE_XPM}" = "yes"; then
3285 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3286 AC_EGREP_CPP(no_return_alloc_pixels,
3287 [#include "noX/xpm.h"
3288 #ifndef XpmReturnAllocPixels
3289 no_return_alloc_pixels
3291 ], HAVE_XPM=no, HAVE_XPM=yes)
3293 if test "${HAVE_XPM}" = "yes"; then
3297 LDFLAGS="$SAVE_LDFLAGS"
3302 if test "${HAVE_XPM}" = "yes"; then
3303 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3308 if test "${HAVE_X11}" = "yes"; then
3309 dnl Avoid Xpm on AIX unless requested, as it crashes; see Bug#17598.
3310 test "$opsys$with_xpm_set" = aix4-2 && with_xpm=no
3312 if test "${with_xpm}" != "no"; then
3313 AC_CHECK_HEADER(X11/xpm.h,
3314 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
3315 if test "${HAVE_XPM}" = "yes"; then
3316 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3317 AC_EGREP_CPP(no_return_alloc_pixels,
3318 [#include "X11/xpm.h"
3319 #ifndef XpmReturnAllocPixels
3320 no_return_alloc_pixels
3322 ], HAVE_XPM=no, HAVE_XPM=yes)
3324 if test "${HAVE_XPM}" = "yes"; then
3332 if test "${HAVE_XPM}" = "yes"; then
3333 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3335 elif test "$opsys,$LUCID_LIBW" = aix4-2,-lXaw; then
3336 dnl AIX -lXaw needs -lXpm linked too; see Bug#17598 Message#152.
3341 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
3342 ### slightly different requirements wrt image libraries (it doesn't
3343 ### use -lXpm because it loads the xpm shared library dynamically at
3345 if test "${opsys}" = "mingw32"; then
3346 if test "${with_xpm}" != "no"; then
3347 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
3351 if test "${HAVE_XPM}" = "yes"; then
3352 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3358 ### Use -ljpeg if available, unless '--with-jpeg=no'.
3361 if test "${with_jpeg}" != "no"; then
3362 AC_CACHE_CHECK([for jpeglib 6b or later],
3365 for emacs_cv_jpeglib in yes -ljpeg no; do
3366 case $emacs_cv_jpeglib in
3369 *) LIBS="$LIBS $emacs_cv_jpeglib";;
3373 [[#undef HAVE_STDLIB_H /* Avoid config.h/jpeglib.h collision. */
3374 #include <stdio.h> /* jpeglib.h needs FILE and size_t. */
3375 #include <jpeglib.h>
3377 char verify[JPEG_LIB_VERSION < 62 ? -1 : 1];
3378 struct jpeg_decompress_struct cinfo;
3381 jpeg_create_decompress (&cinfo);
3382 WARNMS (&cinfo, JWRN_JPEG_EOF);
3383 jpeg_destroy_decompress (&cinfo);
3385 [emacs_link_ok=yes],
3388 test $emacs_link_ok = yes && break
3390 if test "$emacs_cv_jpeglib" != no; then
3392 AC_DEFINE([HAVE_JPEG], 1,
3393 [Define to 1 if you have the jpeg library (typically -ljpeg).])
3394 ### mingw32 doesn't use -ljpeg, since it loads the library
3395 ### dynamically when needed, and doesn't want a run-time
3396 ### dependency on the jpeglib DLL.
3397 test "$emacs_cv_jpeglib" != yes && test "${opsys}" != "mingw32" \
3398 && LIBJPEG=$emacs_cv_jpeglib
3405 if test "${with_zlib}" != "no"; then
3407 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
3409 case $ac_cv_search_inflateEnd in
3410 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3413 if test "${HAVE_ZLIB}" = "yes"; then
3414 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3415 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3416 if test "${opsys}" = "mingw32"; then
3422 ### Dynamic modules support
3427 if test "${with_modules}" != "no"; then
3431 MODULES_SUFFIX=".so"
3435 MODULES_SUFFIX=".dll"
3439 MODULES_SUFFIX=".so"
3443 # BSD systems have dlopen in libc.
3444 AC_CHECK_FUNC([dlopen],
3445 [MODULES_SUFFIX=".so"
3450 if test "${HAVE_MODULES}" = no; then
3451 AC_MSG_ERROR([Dynamic modules are not supported on your system])
3454 LIBS="$LIBS $LIBMODULES"
3455 AC_CHECK_FUNCS([dladdr dlfunc])
3460 if test "${HAVE_MODULES}" = yes; then
3461 MODULES_OBJ="dynlib.o emacs-module.o"
3462 AC_DEFINE(HAVE_MODULES, 1, [Define to 1 if dynamic modules are enabled])
3463 AC_DEFINE_UNQUOTED(MODULES_SUFFIX, "$MODULES_SUFFIX",
3464 [System extension for dynamic libraries])
3466 AC_SUBST(MODULES_OBJ)
3467 AC_SUBST(LIBMODULES)
3469 ### Use -lpng if available, unless '--with-png=no'.
3473 if test "${NS_IMPL_COCOA}" = yes; then
3475 elif test "${with_png}" != no; then
3476 # mingw32 loads the library dynamically.
3477 if test "$opsys" = mingw32; then
3478 AC_CHECK_HEADER([png.h], [HAVE_PNG=yes])
3479 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3480 AC_MSG_CHECKING([for png])
3481 png_cflags=`(libpng-config --cflags) 2>&AS_MESSAGE_LOG_FD` &&
3482 png_ldflags=`(libpng-config --ldflags) 2>&AS_MESSAGE_LOG_FD` || {
3483 # libpng-config does not work; configure by hand.
3484 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
3485 # in /usr/include/libpng.
3486 if test -r /usr/include/libpng/png.h &&
3487 test ! -r /usr/include/png.h; then
3488 png_cflags=-I/usr/include/libpng
3496 CFLAGS="$CFLAGS $png_cflags"
3497 LIBS="$png_ldflags -lz -lm $LIBS"
3499 [AC_LANG_PROGRAM([[#include <png.h>]],
3500 [[return !png_get_channels (0, 0);]])],
3502 PNG_CFLAGS=`AS_ECHO(["$png_cflags"]) | sed -e "$edit_cflags"`
3504 # $LIBPNG requires explicit -lz in some cases.
3505 # We don't know what those cases are, exactly, so play it safe and
3506 # append -lz to any nonempty $LIBPNG, unless we're already using LIBZ.
3507 if test -n "$LIBPNG" && test -z "$LIBZ"; then
3508 LIBPNG="$LIBPNG -lz"
3512 AC_MSG_RESULT([$HAVE_PNG])
3515 if test $HAVE_PNG = yes; then
3516 AC_DEFINE([HAVE_PNG], [1], [Define to 1 if you have the png library.])
3519 CFLAGS="$CFLAGS $PNG_CFLAGS"
3520 AC_CHECK_DECL([png_longjmp],
3522 [AC_DEFINE([PNG_DEPSTRUCT], [],
3523 [Define to empty to suppress deprecation warnings when building
3524 with --enable-gcc-warnings and with libpng versions before 1.5,
3525 which lack png_longjmp.])],
3531 AC_SUBST(PNG_CFLAGS)
3533 ### Use -ltiff if available, unless '--with-tiff=no'.
3534 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3537 if test "${opsys}" = "mingw32"; then
3538 if test "${with_tiff}" != "no"; then
3539 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3541 if test "${HAVE_TIFF}" = "yes"; then
3542 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3544 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3545 if test "${with_tiff}" != "no"; then
3546 AC_CHECK_HEADER(tiffio.h,
3548 # At least one tiff package requires the jpeg library.
3549 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3550 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3553 if test "${HAVE_TIFF}" = "yes"; then
3554 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3555 dnl FIXME -lz -lm, as per libpng?
3561 ### Use -lgif or -lungif if available, unless '--with-gif=no'.
3562 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3565 if test "${opsys}" = "mingw32"; then
3566 if test "${with_gif}" != "no"; then
3567 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3569 if test "${HAVE_GIF}" = "yes"; then
3570 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3572 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3573 || test "${HAVE_W32}" = "yes"; then
3574 AC_CHECK_HEADER(gif_lib.h,
3575 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3576 # Earlier versions can crash Emacs, but version 5.0 removes EGifPutExtensionLast.
3577 [AC_CHECK_LIB(gif, GifMakeMapObject, HAVE_GIF=yes,
3578 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])])
3580 if test "$HAVE_GIF" = yes; then
3582 elif test "$HAVE_GIF" = maybe; then
3583 # If gif_lib.h but no libgif, try libungif.
3584 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3585 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3588 if test "${HAVE_GIF}" = "yes"; then
3589 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3594 dnl Check for required libraries.
3597 if test "${HAVE_X11}" = "yes"; then
3598 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3599 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3600 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3601 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3602 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3603 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3604 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3605 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3606 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3607 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3609 test "${with_gnutls}" != "no" && test "${HAVE_GNUTLS}" != "yes" &&
3610 MISSING="$MISSING gnutls" && WITH_NO="$WITH_NO --with-gnutls=no"
3611 if test "X${MISSING}" != X; then
3612 AC_MSG_ERROR([The following required libraries were not found:
3614 Maybe some development libraries/packages are missing?
3615 If you don't want to link with them give
3617 as options to configure])
3620 ### Use -lgpm if available, unless '--with-gpm=no'.
3623 if test "${with_gpm}" != "no"; then
3624 AC_CHECK_HEADER(gpm.h,
3625 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3627 if test "${HAVE_GPM}" = "yes"; then
3628 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3634 dnl Check for malloc/malloc.h on darwin
3635 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3638 ### Use NeXTstep API to implement GUI.
3639 if test "${HAVE_NS}" = "yes"; then
3640 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on macOS.])
3641 if test "${NS_IMPL_COCOA}" = "yes"; then
3642 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under macOS.])
3644 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3645 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3646 if test $NS_GNUSTEP_CONFIG != yes; then
3647 # See also .m.o rule in src/Makefile.in. */
3648 # FIXME: are all these flags really needed? Document here why. */
3649 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3650 ## Extra CFLAGS applied to src/*.m files.
3651 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3657 ### Use session management (-lSM -lICE) if available
3660 if test "${HAVE_X11}" = "yes"; then
3661 AC_CHECK_HEADER(X11/SM/SMlib.h,
3662 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3664 if test "${HAVE_X_SM}" = "yes"; then
3665 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3671 ### Use XRandr (-lXrandr) if available
3673 if test "${HAVE_X11}" = "yes"; then
3674 XRANDR_REQUIRED=1.2.2
3675 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3676 EMACS_CHECK_MODULES([XRANDR], [$XRANDR_MODULES])
3677 if test $HAVE_XRANDR = no; then
3678 # Test old way in case pkg-config doesn't have it (older machines).
3679 # Include Xrender.h by hand to work around bug in older Xrandr.h
3680 # (e.g. RHEL5) and silence (harmless) configure warning (bug#18465).
3681 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3682 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)],
3683 [], [AC_INCLUDES_DEFAULT
3684 #include <X11/extensions/Xrender.h>])
3685 if test $HAVE_XRANDR = yes; then
3686 XRANDR_LIBS=-lXrandr
3689 if test $HAVE_XRANDR = yes; then
3690 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3693 AC_SUBST(XRANDR_CFLAGS)
3694 AC_SUBST(XRANDR_LIBS)
3696 ### Use Xinerama (-lXinerama) if available
3698 if test "${HAVE_X11}" = "yes"; then
3699 XINERAMA_REQUIRED=1.0.2
3700 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3701 EMACS_CHECK_MODULES([XINERAMA], [$XINERAMA_MODULES])
3702 if test $HAVE_XINERAMA = no; then
3703 # Test old way in case pkg-config doesn't have it (older machines).
3704 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3705 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3706 if test $HAVE_XINERAMA = yes; then
3707 XINERAMA_LIBS=-lXinerama
3710 if test $HAVE_XINERAMA = yes; then
3711 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3714 AC_SUBST(XINERAMA_CFLAGS)
3715 AC_SUBST(XINERAMA_LIBS)
3717 ### Use Xfixes (-lXfixes) if available
3719 if test "${HAVE_X11}" = "yes"; then
3720 XFIXES_REQUIRED=4.0.0
3721 XFIXES_MODULES="xfixes >= $XFIXES_REQUIRED"
3722 EMACS_CHECK_MODULES([XFIXES], [$XFIXES_MODULES])
3723 if test $HAVE_XFIXES = no; then
3724 # Test old way in case pkg-config doesn't have it (older machines).
3725 AC_CHECK_HEADER(X11/extensions/Xfixes.h,
3726 [AC_CHECK_LIB(Xfixes, XFixesHideCursor, HAVE_XFIXES=yes)])
3727 if test $HAVE_XFIXES = yes; then
3728 XFIXES_LIBS=-lXfixes
3731 if test $HAVE_XFIXES = yes; then
3732 AC_DEFINE(HAVE_XFIXES, 1, [Define to 1 if you have the Xfixes extension.])
3735 AC_SUBST(XFIXES_CFLAGS)
3736 AC_SUBST(XFIXES_LIBS)
3738 ### Use Xdbe (-lXdbe) if available
3740 if test "${HAVE_X11}" = "yes"; then
3741 AC_CHECK_HEADER(X11/extensions/Xdbe.h,
3742 [AC_CHECK_LIB(Xext, XdbeAllocateBackBufferName, HAVE_XDBE=yes)],
3744 [#include <X11/Xlib.h>
3746 if test $HAVE_XDBE = yes; then
3749 if test $HAVE_XDBE = yes; then
3750 AC_DEFINE(HAVE_XDBE, 1, [Define to 1 if you have the Xdbe extension.])
3753 AC_SUBST(XDBE_CFLAGS)
3756 ### Use libxml (-lxml2) if available
3757 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3759 if test "${with_xml2}" != "no"; then
3760 ### I'm not sure what the version number should be, so I just guessed.
3761 EMACS_CHECK_MODULES([LIBXML2], [libxml-2.0 > 2.6.17])
3762 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3763 if test "${HAVE_LIBXML2}" != "yes" && test "$opsys" = "darwin"; then
3764 SAVE_CPPFLAGS="$CPPFLAGS"
3765 if test -z "$xcsdkdir" -a -n "$XCRUN" -a ! -d /usr/include; then
3766 dnl /usr/include is not found. Try Xcode SDK dir if it is sane.
3767 xcsdkdir=`$XCRUN --show-sdk-path 2>/dev/null`
3769 *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
3773 CPPFLAGS="$CPPFLAGS -I$xcsdkdir/usr/include/libxml2"
3774 AC_CHECK_HEADER(libxml/HTMLparser.h,
3775 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3776 [#include <libxml/HTMLparser.h>])])
3777 CPPFLAGS="$SAVE_CPPFLAGS"
3778 if test "${HAVE_LIBXML2}" = "yes"; then
3779 LIBXML2_CFLAGS="-I'$xcsdkdir/usr/include/libxml2'"
3780 LIBXML2_LIBS="-lxml2"
3783 if test "${HAVE_LIBXML2}" = "yes"; then
3784 if test "${opsys}" != "mingw32"; then
3785 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no,
3790 if test "${HAVE_LIBXML2}" = "yes"; then
3791 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3798 AC_SUBST(LIBXML2_LIBS)
3799 AC_SUBST(LIBXML2_CFLAGS)
3801 # Check for mail-locking functions in a "mail" library. Probably this should
3802 # have the same check as for liblockfile below.
3803 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
3804 if test $have_mail = yes; then
3806 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the 'mail' library (-lmail).])
3809 LIBS="$LIBS_MAIL $LIBS"
3810 AC_CHECK_FUNCS(touchlock)
3815 dnl Debian, at least:
3816 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
3817 if test $have_lockfile = yes; then
3818 LIBS_MAIL=-llockfile
3819 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the 'lockfile' library (-llockfile).])
3821 # If we have the shared liblockfile, assume we must use it for mail
3822 # locking (e.g. Debian). If we couldn't link against liblockfile
3823 # (no liblockfile.a installed), ensure that we don't need to.
3824 dnl This works for files generally, not just executables.
3825 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3826 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
3827 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
3828 if test $ac_cv_prog_liblockfile = yes; then
3829 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3830 This probably means that movemail could lose mail.
3831 There may be a 'development' package to install containing liblockfile.])
3834 AC_CHECK_HEADERS_ONCE(maillock.h)
3837 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3838 ## interlock access to the mail spool. The alternative is a lock file named
3839 ## /usr/spool/mail/$USER.lock.
3842 aix4-2) mail_lock="lockf" ;;
3844 gnu|freebsd|dragonfly|netbsd|openbsd|darwin) mail_lock="flock" ;;
3846 ## On GNU/Linux systems, both methods are used by various mail programs.
3847 ## I assume most people are using newer mailers that have heard of flock.
3848 ## Change this if you need to.
3849 ## Debian contains a patch which says: "On Debian/GNU/Linux systems,
3850 ## configure gets the right answers, and that means *NOT* using flock.
3851 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3852 ## for details." and then uses '#ifdef DEBIAN'. Unfortunately the
3853 ## Debian maintainer hasn't provided a clean fix for Emacs.
3854 ## movemail.c will use 'maillock' when MAILDIR, HAVE_LIBMAIL and
3855 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3856 ## correct logic. -- fx
3857 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3858 ## liblockfile is a Free Software replacement for libmail, used on
3859 ## Debian systems and elsewhere. -rfr.
3862 if test $have_mail = yes || test $have_lockfile = yes; then
3863 test $ac_cv_header_maillock_h = yes && mail_lock=no
3868 mail_lock="none-needed" ;;
3872 case "$mail_lock" in
3873 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3875 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3879 *) BLESSMAIL_TARGET="need-blessmail" ;;
3881 AC_SUBST(BLESSMAIL_TARGET)
3884 LIBS="$LIB_PTHREAD $LIB_MATH $LIBS"
3885 AC_CHECK_FUNCS(accept4 fchdir gethostname \
3886 getrusage get_current_dir_name \
3887 lrand48 random rint \
3888 select getpagesize setlocale newlocale \
3889 getrlimit setrlimit shutdown \
3890 pthread_sigmask strsignal setitimer \
3891 sendto recvfrom getsockname getifaddrs freeifaddrs \
3893 getpwent endpwent getgrent endgrent \
3894 cfmakeraw cfsetspeed copysign __executable_start log2 prctl)
3897 dnl No need to check for posix_memalign if aligned_alloc works.
3898 AC_CHECK_FUNCS([aligned_alloc posix_memalign], [break])
3899 AC_CHECK_DECLS([aligned_alloc], [], [], [[#include <stdlib.h>]])
3901 dnl Cannot use AC_CHECK_FUNCS
3902 AC_CACHE_CHECK([for __builtin_unwind_init],
3903 emacs_cv_func___builtin_unwind_init,
3904 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3905 emacs_cv_func___builtin_unwind_init=yes,
3906 emacs_cv_func___builtin_unwind_init=no)])
3907 if test $emacs_cv_func___builtin_unwind_init = yes; then
3908 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3909 [Define to 1 if you have the '__builtin_unwind_init' function.])
3912 AC_CHECK_HEADERS_ONCE(sys/un.h)
3917 AC_CHECK_FUNCS(grantpt)
3919 # PTY-related GNU extensions.
3920 AC_CHECK_FUNCS(getpt posix_openpt)
3922 # Check this now, so that we will NOT find the above functions in ncurses.
3923 # That is because we have not set up to link ncurses in lib-src.
3924 # It's better to believe a function is not available
3925 # than to expect to find it in ncurses.
3926 # Also we need tputs and friends to be able to build at all.
3927 AC_MSG_CHECKING([for library containing tputs])
3928 # Run a test program that contains a call to tputs, a call that is
3929 # never executed. This tests whether a pre-'main' dynamic linker
3930 # works with the library. It's too much trouble to actually call
3931 # tputs in the test program, due to portability hassles. When
3932 # cross-compiling, assume the test program will run if it links.
3933 AC_DEFUN([tputs_link_source], [
3935 [[extern void tputs (const char *, int, int (*)(int));
3936 int main (int argc, char **argv)
3939 tputs (argv[0], 0, 0);
3943 if test "${opsys}" = "mingw32"; then
3946 # Maybe curses should be tried earlier?
3947 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3948 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3950 if test -z "$tputs_library"; then
3954 LIBS_TERMCAP=-l$tputs_library
3956 LIBS="$LIBS_TERMCAP $LIBS"
3958 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3959 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3961 if test "X$msg" != Xno; then
3966 AC_MSG_RESULT([$msg])
3967 if test "X$msg" = Xno; then
3968 AC_MSG_ERROR([The required function 'tputs' was not found in any library.
3969 The following libraries were tried (in order):
3970 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3971 Please try installing whichever of these libraries is most appropriate
3972 for your system, together with its header files.
3973 For example, a libncurses-dev(el) or similar package.])
3976 ## Use termcap instead of terminfo?
3977 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3979 ## FIXME? In the cases below where we unconditionally set
3980 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3981 ## if that was found above to have tputs.
3982 ## Should we use the gnu* logic everywhere?
3984 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3985 ## The ncurses library has been moved out of the System framework in
3986 ## Mac OS X 10.2. So if configure detects it, set the command-line
3987 ## option to use it.
3988 darwin) LIBS_TERMCAP="-lncurses" ;;
3990 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3993 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3994 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3995 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3996 [[#if __FreeBSD_version < 400000
3999 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
4001 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
4003 if test $emacs_cv_freebsd_terminfo = yes; then
4004 LIBS_TERMCAP="-lncurses"
4007 LIBS_TERMCAP="-ltermcap"
4017 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
4019 LIBS_TERMCAP="-ltermcap"
4023 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
4025 ## hpux: Make sure we get select from libc rather than from libcurses
4026 ## because libcurses on HPUX 10.10 has a broken version of select.
4027 ## We used to use -lc -lcurses, but this may be cleaner.
4028 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
4029 # set that way, now it uses the default). Isn't this a contradiction?
4030 hpux*) LIBS_TERMCAP="-ltermcap" ;;
4034 TERMCAP_OBJ=tparam.o
4035 if test $TERMINFO = yes; then
4036 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
4037 TERMCAP_OBJ=terminfo.o
4039 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
4040 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
4042 AC_SUBST(LIBS_TERMCAP)
4043 AC_SUBST(TERMCAP_OBJ)
4045 # GNU/Linux-specific timer functions.
4046 AC_CACHE_CHECK([for timerfd interface], [emacs_cv_have_timerfd],
4048 [AC_LANG_PROGRAM([[#include <sys/timerfd.h>
4050 [[timerfd_create (CLOCK_REALTIME,
4051 TFD_CLOEXEC | TFD_NONBLOCK);
4052 timerfd_settime (0, TFD_TIMER_ABSTIME, 0, 0);]])],
4053 [emacs_cv_have_timerfd=yes],
4054 [emacs_cv_have_timerfd=no])])
4055 if test "$emacs_cv_have_timerfd" = yes; then
4056 AC_DEFINE([HAVE_TIMERFD], 1,
4057 [Define to 1 if timerfd functions are supported as in GNU/Linux.])
4060 # Alternate stack for signal handlers.
4061 AC_CACHE_CHECK([whether signals can be handled on alternate stack],
4062 [emacs_cv_alternate_stack],
4064 [AC_LANG_PROGRAM([[#include <signal.h>
4067 struct sigaction sa;
4068 ss.ss_sp = malloc (SIGSTKSZ);
4069 ss.ss_size = SIGSTKSZ;
4070 sa.sa_flags = SA_SIGINFO | SA_ONSTACK;
4071 sigaltstack (&ss, 0);
4072 sigaction (SIGSEGV, &sa, 0);]])],
4073 [emacs_cv_alternate_stack=yes],
4074 [emacs_cv_alternate_stack=no])])
4076 # Do we need the Hesiod library to provide the support routines?
4077 dnl FIXME? Should we be skipping this on Darwin too?
4080 if test "$with_hesiod" != no ; then
4081 # Don't set $LIBS here -- see comments above. FIXME which comments?
4083 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
4084 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
4085 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
4086 if test "$resolv" = yes ; then
4092 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
4093 hesiod=yes, :, $RESOLVLIB)])
4095 if test x"$hesiod" = xyes; then
4097 LIBRESOLV=$RESOLVLIB
4103 # These tell us which Kerberos-related libraries to use.
4110 if test "${with_kerberos}" != no; then
4112 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
4113 if test $have_com_err = yes; then
4114 COM_ERRLIB=-lcom_err
4115 LIBS="$COM_ERRLIB $LIBS"
4117 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
4118 if test $have_crypto = yes; then
4120 LIBS="$CRYPTOLIB $LIBS"
4122 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
4123 if test $have_k5crypto = yes; then
4124 CRYPTOLIB=-lk5crypto
4125 LIBS="$CRYPTOLIB $LIBS"
4127 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
4128 if test $have_krb5=yes; then
4130 LIBS="$KRB5LIB $LIBS"
4132 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
4133 if test "${with_kerberos5}" = no; then
4134 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
4135 if test $have_des425 = yes; then
4137 LIBS="$DESLIB $LIBS"
4139 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
4140 if test $have_des = yes; then
4142 LIBS="$DESLIB $LIBS"
4145 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
4146 if test $have_krb4 = yes; then
4148 LIBS="$KRB4LIB $LIBS"
4150 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
4151 if test $have_krb = yes; then
4153 LIBS="$KRB4LIB $LIBS"
4158 if test "${with_kerberos5}" != no; then
4159 AC_CHECK_HEADERS(krb5.h,
4160 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
4161 [#include <krb5.h>])])
4163 AC_CHECK_HEADERS(krb.h,,
4164 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
4165 [AC_CHECK_HEADERS(kerberos/krb.h)])])
4167 AC_CHECK_HEADERS(com_err.h)
4171 AC_SUBST(COM_ERRLIB)
4177 AC_CHECK_HEADERS(valgrind/valgrind.h)
4179 AC_CHECK_MEMBERS([struct unipair.unicode], [], [], [[#include <linux/kd.h>]])
4181 AC_CHECK_FUNCS_ONCE([sbrk tzset])
4184 AC_CHECK_FUNC(socket, , ok_so_far=no)
4185 if test $ok_so_far = yes; then
4186 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
4188 if test $ok_so_far = yes; then
4189 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
4191 if test $ok_so_far = yes; then
4192 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
4193 AC_DEFINE(HAVE_INET_SOCKETS, 1,
4194 [Define to 1 if you have inet sockets.])
4199 AC_CHECK_FUNCS(snprintf)
4201 dnl Check for glib. This differs from other library checks in that
4202 dnl Emacs need not link to glib unless some other library is already
4203 dnl linking to glib. Although glib provides no facilities that Emacs
4204 dnl needs for its own purposes, when glib is present Emacs needs to
4205 dnl use primitives like g_main_context_query to avoid clashing with
4206 dnl glib at a low level.
4208 dnl Check this late, since it depends on $GTK_CFLAGS etc.
4212 CFLAGS="$CFLAGS $GTK_CFLAGS $RSVG_CFLAGS $DBUS_CFLAGS $SETTINGS_CFLAGS"
4213 LIBS="$LIBS $GTK_LIBS $RSVG_LIBS $DBUS_LIBS $SETTINGS_LIBS"
4214 CFLAGS="$CFLAGS $NOTIFY_CFLAGS $CAIRO_CFLAGS"
4215 LIBS="$LIBS $NOTIFY_LIBS $CAIRO_LIBS"
4216 AC_MSG_CHECKING([whether GLib is linked in])
4217 AC_LINK_IFELSE([AC_LANG_PROGRAM(
4220 [[g_print ("Hello world");]])],
4223 AC_MSG_RESULT([$links_glib])
4224 if test "${links_glib}" = "yes"; then
4225 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
4226 if test "$HAVE_NS" = no;then
4234 dnl Adapted from Haible's version.
4235 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
4236 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
4237 [[char* cs = nl_langinfo(CODESET);]])],
4238 emacs_cv_langinfo_codeset=yes,
4239 emacs_cv_langinfo_codeset=no)
4241 if test $emacs_cv_langinfo_codeset = yes; then
4242 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
4243 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
4248 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
4249 dnl how the tty code is related to POSIX and/or other versions of termios.
4250 dnl The following looks like a useful start.
4252 dnl AC_SYS_POSIX_TERMIOS
4253 dnl if test $ac_cv_sys_posix_termios = yes; then
4254 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
4255 dnl and macros for terminal control.])
4256 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
4259 dnl Turned on June 1996 supposing nobody will mind it.
4260 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
4261 if test "${opsys}" != "mingw32"; then
4262 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
4263 in the full name stands for the login id.])
4266 dnl Everybody supports this, except MS.
4267 dnl Seems like the kind of thing we should be testing for, though.
4268 ## Note: PTYs are broken on darwin <6. Use at your own risk.
4269 if test "${opsys}" != "mingw32"; then
4270 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
4273 dnl Everybody supports this, except MS-DOS.
4274 dnl Seems like the kind of thing we should be testing for, though.
4275 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
4276 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
4277 4.2-compatible sockets.])
4279 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
4281 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
4282 a null file, or a data sink.])
4283 if test "${opsys}" = "mingw32"; then
4284 AC_DEFINE(NULL_DEVICE, ["NUL:"])
4286 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
4289 if test "${opsys}" = "mingw32"; then
4294 AC_DEFINE_UNQUOTED(SEPCHAR, ['$SEPCHAR'], [Character that separates PATH elements.])
4295 dnl This is for MinGW, and is used in test/Makefile.in.
4296 dnl The MSYS Bash has heuristics for replacing ':' with ';' when it
4297 dnl decides that a command-line argument to be passed to a MinGW program
4298 dnl is a PATH-style list of directories. But that heuristics plays it
4299 dnl safe, and only does the replacement when it is _absolutely_ sure it
4300 dnl sees a colon-separated list of file names; e.g. ":." is left alone,
4301 dnl which breaks in-tree builds. So we do this manually instead.
4302 dnl Note that we cannot rely on PATH_SEPARATOR, as that one will always
4303 dnl be computed as ':' in MSYS Bash.
4306 dnl Everybody supports this, except MS-DOS.
4307 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
4309 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
4312 AC_DEFINE(DIRECTORY_SEP, ['/'],
4313 [Character that separates directories in a file name.])
4315 if test "${opsys}" = "mingw32"; then
4316 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
4317 [Returns true if character is a device separator.])
4319 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
4320 [Returns true if character is a directory separator.])
4322 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
4323 [Returns true if character is any form of separator.])
4325 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
4326 [Returns true if character is a device separator.])
4328 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
4329 [Returns true if character is a directory separator.])
4331 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
4332 [Returns true if character is any form of separator.])
4335 if test "$USE_X_TOOLKIT" != "none"; then
4339 dnl Assar Westerlund <assar@sics.se> says this is necessary
4340 dnl for HP-UX 10.20, and that it works for HP-UX 0 as well.
4344 if test "$have_editres" != no && test ! -z "$LIBXMU"; then
4346 dnl See libXmu.a check above.
4347 if test x$HAVE_X11XTR6 = xyes; then
4348 LIBS="-lXt -lSM -lICE $LIBXMU"
4350 OTHERLIBS="-lXt -$LIBXMU"
4353 [#include <X11/Intrinsic.h>
4354 #include <X11/Xmu/Editres.h>],
4355 [_XEditResCheckMessages (0, 0, 0, 0);],
4356 [AC_DEFINE([X_TOOLKIT_EDITRES], 1,
4357 [Define to 1 if we should use XEditRes.])])
4364 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
4365 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
4366 dnl need the constant to dimension an array. So wire in the appropriate
4368 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
4372 emacs_broken_SIGIO=no
4375 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
4376 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
4377 hpux* | nacl | openbsd | sol2* | unixware )
4378 emacs_broken_SIGIO=yes
4382 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
4383 dnl the way this system works, libc functions that return malloced
4384 dnl memory use the libc malloc implementation. Calling xfree or
4385 dnl xrealloc on the results of such functions results in a crash.
4387 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
4388 dnl but that does not currently work on this system.
4390 dnl It is possible to completely override the malloc implementation on
4391 dnl AIX, but that involves putting the malloc functions in a shared
4392 dnl library and setting the MALLOCTYPE environment variable to point to
4393 dnl that shared library.
4395 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
4396 dnl to avoid a crash just use the Emacs implementation for that function.
4398 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
4399 dnl of this file, so that we do not check for get_current_dir_name
4400 dnl on AIX. But that might be fragile if something else ends
4401 dnl up testing for get_current_dir_name as a dependency.
4402 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
4403 get_current_dir_name should not be used.])
4407 dnl Circumvent a bug in FreeBSD. In the following sequence of
4408 dnl writes/reads on a PTY, read(2) returns bogus data:
4410 dnl write(2) 1022 bytes
4411 dnl write(2) 954 bytes, get EAGAIN
4412 dnl read(2) 1024 bytes in process_read_output
4413 dnl read(2) 11 bytes in process_read_output
4415 dnl That is, read(2) returns more bytes than have ever been written
4416 dnl successfully. The 1033 bytes read are the 1022 bytes written
4417 dnl successfully after processing (for example with CRs added if the
4418 dnl terminal is set up that way which it is here). The same bytes will
4419 dnl be seen again in a later read(2), without the CRs.
4420 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
4421 work around an issue when reading from a PTY.])
4427 dnl FIXME Can't we test if this exists (eg /proc/$$)?
4428 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
4433 darwin | dragonfly | freebsd | netbsd | openbsd )
4434 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
4435 close a pty to make it a controlling terminal (it is already a
4436 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
4440 dnl FIXME Surely we can test for this rather than hard-code it.
4442 netbsd | openbsd) sound_device="/dev/audio" ;;
4443 *) sound_device="/dev/dsp" ;;
4447 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
4448 [Name of the default sound device.])
4451 dnl Emacs can read input using SIGIO and buffering characters itself,
4452 dnl or using CBREAK mode and making C-g cause SIGINT.
4453 dnl The choice is controlled by the variable interrupt_input.
4455 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
4457 dnl Emacs uses the presence of the USABLE_SIGIO macro
4458 dnl to indicate whether or not signal-driven I/O is possible. It uses
4459 dnl INTERRUPT_INPUT to decide whether to use it by default.
4461 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
4462 dnl CBREAK mode has two disadvantages
4463 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
4464 dnl I hear that in system V this problem does not exist.
4465 dnl 2) Control-G causes output to be discarded.
4466 dnl I do not know whether this can be fixed in system V.
4468 dnl Another method of doing input is planned but not implemented.
4469 dnl It would have Emacs fork off a separate process
4470 dnl to read the input and send it to the true Emacs process
4473 darwin | gnu-linux | gnu-kfreebsd )
4474 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
4479 dnl If the system's imake configuration file defines 'NeedWidePrototypes'
4480 dnl as 'NO', we must define NARROWPROTO manually. Such a define is
4481 dnl generated in the Makefile generated by 'xmkmf'. If we don't define
4482 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
4483 dnl taking float or double parameters.
4485 cygwin|gnu|gnu-linux|gnu-kfreebsd|freebsd|netbsd|openbsd)
4486 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
4487 file defines 'NeedWidePrototypes' as 'NO'.])
4492 dnl Used in process.c, this must be a loop, even if it only runs once.
4493 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
4494 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
4495 dnl trying suffixes 0-16.
4496 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
4497 first PTY, if PTYs are supported.])
4498 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
4499 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
4500 end of a PTY, if non-standard.])
4501 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
4502 end of a PTY, if non-standard.])
4506 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4507 dnl You allocate a pty by opening /dev/ptc to get the master side.
4508 dnl To get the name of the slave side, you just ttyname() the master side.
4509 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4510 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4514 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4515 dnl multi-line AC_DEFINEs are hard. :(
4516 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)])
4517 AC_DEFINE(PTY_NAME_SPRINTF, [])
4518 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4522 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4525 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd | darwin | nacl )
4527 if test "x$ac_cv_func_grantpt" = xyes; then
4528 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4529 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4530 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4531 dnl to prevent sigchld_handler from intercepting the child's death.
4532 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); }])
4533 dnl if HAVE_POSIX_OPENPT
4534 if test "x$ac_cv_func_posix_openpt" = xyes; then
4535 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (false)])
4536 AC_DEFINE(PTY_NAME_SPRINTF, [])
4538 elif test "x$ac_cv_func_getpt" = xyes; then
4539 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4540 AC_DEFINE(PTY_NAME_SPRINTF, [])
4542 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4545 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4550 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4551 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4552 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4556 dnl On SysVr4, grantpt(3) forks a subprocess, so do not use
4557 dnl O_CLOEXEC when opening the pty, and keep the SIGCHLD handler
4558 dnl from intercepting that death. If any child but grantpt's should die
4559 dnl within, it should be caught after sigrelse(2).
4560 AC_DEFINE(PTY_OPEN, [fd = open (pty_name, O_RDWR | O_NONBLOCK)])
4561 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); }])
4565 dnl Comments are as per sol2*.
4566 AC_DEFINE(PTY_OPEN, [fd = open (pty_name, O_RDWR | O_NONBLOCK)])
4567 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); }])
4574 dnl This change means that we don't loop through allocate_pty too
4575 dnl many times in the (rare) event of a failure.
4576 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4577 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4578 dnl Push various streams modules onto a PTY channel. Used in process.c.
4579 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.])
4584 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4585 "typing" a signal character on the pty.])
4588 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4589 aix4-2 | cygwin | gnu | dragonfly | freebsd | netbsd | openbsd | darwin )
4590 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4593 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4594 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4595 gnu-linux | gnu-kfreebsd )
4597 AC_MSG_CHECKING([for signals via characters])
4598 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4599 #include <linux/version.h>
4600 #if LINUX_VERSION_CODE < 0x20400
4601 # error "Linux version too old"
4603 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4605 AC_MSG_RESULT([$emacs_signals_via_chars])
4606 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4611 AH_TEMPLATE(TAB3, [Undocumented.])
4614 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4616 gnu | dragonfly | freebsd | netbsd | openbsd )
4617 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4618 AC_DEFINE(TAB3, OXTABS)
4621 gnu-linux | gnu-kfreebsd )
4622 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4626 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4627 [do { extern void *__libc_ia64_register_backing_store_base; __builtin_ia64_flushrs (); mark_memory (__libc_ia64_register_backing_store_base, __builtin_ia64_bsp ());} while (false)],
4628 [Mark a secondary stack, like the register stack on the ia64.]), [])
4632 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4633 run_time_remap; for HPUX.])
4638 dnl This won't be used automatically yet. We also need to know, at least,
4639 dnl that the stack is continuous.
4640 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4641 registers relevant for conservative garbage collection in the jmp_buf.])
4645 dnl Not all the architectures are tested, but there are Debian packages
4646 dnl for SCM and/or Guile on them, so the technique must work. See also
4647 dnl comments in alloc.c concerning setjmp and gcc.
4648 dnl Fixme: it's probably safe to just use the GCC conditional below.
4649 gnu-linux | gnu-kfreebsd )
4650 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4651 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4652 || defined __alpha__ || defined __mips__ || defined __s390__ \
4653 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4654 || defined __ia64__ || defined __sh__
4657 # error "setjmp not known to work on this arch"
4659 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4664 if test x$GCC = xyes; then
4665 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4666 AC_DEFINE(GC_SETJMP_WORKS, 1)
4669 aix* | dragonfly | freebsd | netbsd | openbsd | sol2* )
4670 AC_DEFINE(GC_SETJMP_WORKS, 1)
4675 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4676 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4679 [[#include <setjmp.h>
4681 # define _longjmp longjmp
4686 _longjmp (j, 1);]])],
4687 [emacs_cv_func__setjmp=yes],
4688 [emacs_cv_func__setjmp=no])])
4689 if test $emacs_cv_func__setjmp = yes; then
4690 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4693 # We need to preserve signal mask to handle C stack overflows.
4694 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4697 [[#include <setjmp.h>
4700 if (! sigsetjmp (j, 1))
4701 siglongjmp (j, 1);]])],
4702 [emacs_cv_func_sigsetjmp=yes],
4703 [emacs_cv_func_sigsetjmp=no])])
4704 if test $emacs_cv_func_sigsetjmp = yes; then
4705 AC_DEFINE([HAVE_SIGSETJMP], 1,
4706 [Define to 1 if sigsetjmp and siglongjmp work.])
4709 case $emacs_cv_func_sigsetjmp,$emacs_cv_alternate_stack,$opsys in
4710 yes,yes,* | *,*,mingw32)
4711 AC_DEFINE([HAVE_STACK_OVERFLOW_HANDLING], 1,
4712 [Define to 1 if C stack overflow can be handled in some cases.]);;
4717 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4718 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4719 dnl and this is all we need.
4720 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4727 dnl Used in xfaces.c.
4728 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4729 some systems, where it requires time.h.])
4734 dnl Define symbols to identify the version of Unix this is.
4735 dnl Define all the symbols that apply correctly.
4736 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4737 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4738 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4739 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4744 dnl This symbol should be defined on AIX Version 3 ???????
4745 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4747 # error "_AIX not defined"
4749 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4753 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4757 dnl Not __APPLE__, as this may not be defined on non-macOS Darwin.
4758 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4759 dnl distinguish macOS from pure Darwin.
4760 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4763 gnu-linux | gnu-kfreebsd )
4765 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4770 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4774 AC_DEFINE(DOS_NT, [])
4775 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4776 if test "x$ac_enable_checking" != "x" ; then
4777 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4783 AC_DEFINE(USG5_4, [])
4784 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4789 AC_DEFINE(USG5_4, [])
4793 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4796 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4797 emacs_cv_usable_FIONREAD=no
4801 emacs_cv_usable_FIONREAD=yes
4806 [AC_LANG_PROGRAM([[#include <sys/types.h>
4807 #include <sys/ioctl.h>
4809 # include <sys/filio.h>
4812 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4813 [emacs_cv_usable_FIONREAD=yes],
4814 [emacs_cv_usable_FIONREAD=no])
4817 if test $emacs_cv_usable_FIONREAD = yes; then
4818 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4820 if test $emacs_broken_SIGIO = no; then
4821 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4823 [AC_LANG_PROGRAM([[#include <fcntl.h>
4826 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4827 [emacs_cv_usable_SIGIO=yes],
4828 [emacs_cv_usable_SIGIO=no])],
4829 [emacs_cv_usable_SIGIO=yes],
4830 [emacs_cv_usable_SIGIO=no])
4831 if test $emacs_cv_usable_SIGIO = yes; then
4832 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4839 dnl It works to open the pty's tty in the parent (Emacs), then
4840 dnl close and reopen it in the child.
4841 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4842 works to open a pty's tty in the parent process, then close and
4843 reopen it in the child.])
4847 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4852 # Set up the CFLAGS for real compilation, so we can substitute it.
4853 CFLAGS="$REAL_CFLAGS"
4854 CPPFLAGS="$REAL_CPPFLAGS"
4857 ## Hack to detect a buggy GCC version.
4858 if test "$GCC" = yes && \
4859 $CC --version 2> /dev/null | grep 'gcc.* 4.5.0' >/dev/null; then
4861 *-fno-optimize-sibling-calls*) ;;
4863 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS.]);;
4867 version=$PACKAGE_VERSION
4869 copyright="Copyright (C) 2017 Free Software Foundation, Inc."
4870 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4871 [Short copyright string for this version of Emacs.])
4874 ### Specify what sort of things we'll be editing into Makefile and config.h.
4875 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4877 AC_SUBST(configuration)
4882 AC_SUBST(exec_prefix)
4885 AC_SUBST(sharedstatedir)
4886 AC_SUBST(libexecdir)
4890 AC_SUBST(standardlisppath)
4891 AC_SUBST(locallisppath)
4893 AC_SUBST(x_default_search_path)
4895 AC_SUBST(archlibdir)
4901 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4902 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4903 ## end of LIBX_BASE, but nothing ever set it.
4904 AC_SUBST(LD_SWITCH_X_SITE)
4905 AC_SUBST(C_SWITCH_X_SITE)
4906 AC_SUBST(GNUSTEP_CFLAGS)
4908 ## Used in lwlib/Makefile.in.
4909 AC_SUBST(X_TOOLKIT_TYPE)
4911 AC_SUBST(ns_appbindir)
4912 AC_SUBST(ns_appresdir)
4914 AC_SUBST(GNU_OBJC_CFLAGS)
4915 AC_SUBST(OTHER_FILES)
4917 if test -n "${term_header}"; then
4918 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4919 [Define to the header for the built-in window system.])
4922 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4923 [Define to the canonical Emacs configuration name.])
4924 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4925 [Define to the options passed to configure.])
4930 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4931 AC_DEFINE(HAVE_X_WINDOWS, 1,
4932 [Define to 1 if you want to use the X window system.])
4934 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4936 if test "$HAVE_CAIRO" = "yes"; then
4937 FONT_OBJ="ftfont.o ftcrfont.o"
4938 elif test "$HAVE_XFT" = "yes"; then
4939 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4940 elif test "$HAVE_FREETYPE" = "yes"; then
4941 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4951 if test "${USE_X_TOOLKIT}" != "none" ; then
4953 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4954 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4955 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4956 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4957 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4961 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4962 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4966 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4967 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4968 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4972 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4973 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4976 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4979 AC_SUBST(WIDGET_OBJ)
4982 case "$USE_X_TOOLKIT" in
4983 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4984 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4985 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4987 if test "$HAVE_XWIDGETS" = "yes"; then
4988 TOOLKIT_LIBW="$TOOLKIT_LIBW -lXcomposite"
4990 AC_SUBST(TOOLKIT_LIBW)
4992 if test "${opsys}" != "mingw32"; then
4993 if test "$USE_X_TOOLKIT" = "none"; then
4994 LIBXT_OTHER="\$(LIBXSM)"
4996 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4999 AC_SUBST(LIBXT_OTHER)
5001 if test "${HAVE_X11}" = "yes" ; then
5002 AC_DEFINE(HAVE_X11, 1,
5003 [Define to 1 if you want to use version 11 of X windows.])
5004 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
5008 AC_SUBST(LIBX_OTHER)
5010 if test "$HAVE_GTK" = yes || test "$HAVE_X11" != yes; then
5012 elif test "$USE_X_TOOLKIT" = none; then
5013 LIBXMENU='$(oldXMenudir)/libXMenu11.a'
5015 LIBXMENU='$(lwlibdir)/liblw.a'
5019 AC_CACHE_CHECK([for struct alignment],
5020 [emacs_cv_struct_alignment],
5022 [AC_LANG_PROGRAM([[#include <stddef.h>
5023 struct __attribute__ ((aligned (8))) s { char c; };
5024 struct t { char c; struct s s; };
5025 char verify[offsetof (struct t, s) == 8 ? 1 : -1];
5027 [emacs_cv_struct_alignment=yes],
5028 [emacs_cv_struct_alignment=no])])
5029 if test "$emacs_cv_struct_alignment" = yes; then
5030 AC_DEFINE([HAVE_STRUCT_ATTRIBUTE_ALIGNED], 1,
5031 [Define to 1 if 'struct __attribute__ ((aligned (N)))' aligns the
5032 structure to an N-byte boundary.])
5035 if test "${GNU_MALLOC}" = "yes" ; then
5036 AC_DEFINE(GNU_MALLOC, 1,
5037 [Define to 1 if you want to use the GNU memory allocator.])
5041 if test "${REL_ALLOC}" = "yes" ; then
5042 AC_DEFINE(REL_ALLOC, 1,
5043 [Define REL_ALLOC if you want to use the relocating allocator for
5046 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
5048 AC_SUBST(RALLOC_OBJ)
5050 if test "$opsys" = "cygwin"; then
5051 CYGWIN_OBJ="cygw32.o"
5052 ## Cygwin differs because of its unexec().
5054 POST_ALLOC_OBJ=lastfile.o
5055 elif test "$opsys" = "mingw32"; then
5058 POST_ALLOC_OBJ=lastfile.o
5061 PRE_ALLOC_OBJ=lastfile.o
5064 AC_SUBST(CYGWIN_OBJ)
5065 AC_SUBST(PRE_ALLOC_OBJ)
5066 AC_SUBST(POST_ALLOC_OBJ)
5068 dnl Call this 'FORTIFY_SOUR' so that it sorts before the 'FORTIFY_SOURCE'
5069 dnl verbatim defined above. The tricky name is apropos, as this hack
5070 dnl makes Fortify go sour!
5071 AH_VERBATIM([FORTIFY_SOUR],
5072 [/* Without the following workaround, Emacs runs slowly on OS X 10.8.
5073 The workaround disables some useful run-time checking, so it
5074 should be conditional to the platforms with the performance bug.
5075 Perhaps Apple will fix this some day; also see m4/extern-inline.m4. */
5076 #if defined __APPLE__ && defined __GNUC__
5077 # ifndef _DONT_USE_CTYPE_INLINE_
5078 # define _DONT_USE_CTYPE_INLINE_
5080 # ifndef _FORTIFY_SOURCE
5081 # define _FORTIFY_SOURCE 0
5086 # If user asks to omit features, disable optional features that gnulib
5087 # might otherwise enable.
5088 if test "$with_features" = no && test "$enable_acl" != yes; then
5092 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
5093 # it temporarily reverts them to their pre-pkg-config values,
5094 # because gnulib needs to work with both src (which uses the
5095 # pkg-config stuff) and lib-src (which does not). For example, gnulib
5096 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
5097 # and it therefore needs to run in an environment where LIBS does not
5098 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
5099 # for some package unrelated to lib-src.
5102 CFLAGS=$pre_PKG_CONFIG_CFLAGS
5103 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
5104 gl_ASSERT_NO_GNULIB_POSIXCHECK
5105 gl_ASSERT_NO_GNULIB_TESTS
5110 if test "${opsys}" = "mingw32"; then
5111 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I \${abs_top_srcdir}/nt/inc"
5112 # Remove unneeded switches from the value of CC that goes to Makefiles
5113 CC=`AS_ECHO(["$CC"]) | sed -e "s,$GCC_TEST_OPTIONS,,"`
5117 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
5119 cygwin) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000" ;;
5122 ## The -headerpad option tells ld (see man page) to leave room at the
5123 ## end of the header for adding load commands. Needed for dumping.
5124 ## 0x1000 is enough for roughly 52 load commands on the x86_64
5125 ## architecture (where they are 78 bytes each). The actual number of
5126 ## load commands added is not consistent but normally ranges from
5127 ## about 14 to about 34. Setting it high gets us plenty of slop and
5128 ## only costs about 1.5K of wasted binary space.
5129 headerpad_extra=1000
5130 if test "$HAVE_NS" = "yes"; then
5131 libs_nsgui="-framework AppKit"
5132 if test "$NS_IMPL_COCOA" = "yes"; then
5133 libs_nsgui="$libs_nsgui -framework IOKit"
5138 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
5140 ## This is here because src/Makefile.in did some extra fiddling around
5141 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
5142 ## LD_SWITCH_SYSTEM_TEMACS instead,
5143 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
5144 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
5147 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
5148 ## find X at run-time.
5149 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
5150 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
5151 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
5152 ## had different values in configure (in ac_link) and src/Makefile.in.
5153 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
5154 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
5157 ## Is it any better under MinGW64 to relocate emacs into higher addresses?
5158 case "$canonical" in
5159 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x400000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
5160 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
5164 *) LD_SWITCH_SYSTEM_TEMACS= ;;
5167 # -no-pie or -nopie fixes a temacs segfault on Gentoo, OpenBSD,
5168 # Ubuntu, and other systems with "hardened" GCC configurations for
5169 # some reason (Bug#18784). We don't know why this works, but not
5170 # segfaulting is better than segfaulting. Use ac_c_werror_flag=yes
5171 # when trying the option, otherwise clang keeps warning that it does
5172 # not understand it, and pre-4.6 GCC has a similar problem
5173 # (Bug#20338). Prefer -no-pie to -nopie, as -no-pie is the
5174 # spelling used by GCC 6.1.0 and later (Bug#24682).
5176 [for $CC option to disable position independent executables],
5177 [emacs_cv_prog_cc_no_pie],
5178 [emacs_save_c_werror_flag=$ac_c_werror_flag
5179 emacs_save_LDFLAGS=$LDFLAGS
5180 ac_c_werror_flag=yes
5181 for emacs_cv_prog_cc_no_pie in -no-pie -nopie no; do
5182 test $emacs_cv_prog_cc_no_pie = no && break
5183 LDFLAGS="$emacs_save_LDFLAGS $emacs_cv_prog_cc_no_pie"
5184 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], [break])
5186 ac_c_werror_flag=$emacs_save_c_werror_flag
5187 LDFLAGS=$emacs_save_LDFLAGS])
5188 if test "$emacs_cv_prog_cc_no_pie" != no; then
5189 LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS $emacs_cv_prog_cc_no_pie"
5192 if test x$ac_enable_profiling != x ; then
5194 *freebsd | gnu-linux) ;;
5195 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
5199 LD_SWITCH_SYSTEM_TEMACS="$LDFLAGS_NOCOMBRELOC $LD_SWITCH_SYSTEM_TEMACS"
5201 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
5203 ## Common for all window systems
5204 if test "$window_system" != "none"; then
5205 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
5206 AC_DEFINE(POLL_FOR_INPUT, 1, [Define if you poll periodically to detect C-g.])
5207 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
5210 AC_SUBST(WINDOW_SYSTEM_OBJ)
5212 AH_TOP([/* GNU Emacs site configuration template file.
5214 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2017
5215 Free Software Foundation, Inc.
5217 This file is part of GNU Emacs.
5219 GNU Emacs is free software: you can redistribute it and/or modify
5220 it under the terms of the GNU General Public License as published by
5221 the Free Software Foundation, either version 3 of the License, or (at
5222 your option) any later version.
5224 GNU Emacs is distributed in the hope that it will be useful,
5225 but WITHOUT ANY WARRANTY; without even the implied warranty of
5226 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
5227 GNU General Public License for more details.
5229 You should have received a copy of the GNU General Public License
5230 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
5233 /* No code in Emacs #includes config.h twice, but some bits of code
5234 intended to work with other packages as well (like gmalloc.c)
5235 think they can include it as many times as they like. */
5236 #ifndef EMACS_CONFIG_H
5237 #define EMACS_CONFIG_H
5240 AH_BOTTOM([#include <conf_post.h>
5242 #endif /* EMACS_CONFIG_H */
5251 #### Report on what we decided to do.
5252 #### Report GTK as a toolkit, even if it doesn't use Xt.
5253 #### It makes printing result more understandable as using GTK sets
5254 #### toolkit_scroll_bars to yes by default.
5255 if test "${HAVE_GTK}" = "yes"; then
5256 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
5259 if test $USE_ACL -ne 0; then
5260 ACL_SUMMARY="yes $LIB_ACL"
5265 emacs_standard_dirs='Standard dirs'
5267 Configured for '${canonical}'.
5269 Where should the build process find the source code? ${srcdir}
5270 What compiler should emacs be built with? ${CC} ${CFLAGS}
5271 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
5272 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
5273 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
5274 What window system should Emacs use? ${window_system}
5275 What toolkit should Emacs use? ${USE_X_TOOLKIT}
5276 Where do we find X Windows header files? ${x_includes:-$emacs_standard_dirs}
5277 Where do we find X Windows libraries? ${x_libraries:-$emacs_standard_dirs}"])
5280 emacs_config_features=
5281 for opt in XAW3D XPM JPEG TIFF GIF PNG RSVG CAIRO IMAGEMAGICK SOUND GPM DBUS \
5282 GCONF GSETTINGS NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT \
5283 LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS X_TOOLKIT X11 NS MODULES \
5284 XWIDGETS LIBSYSTEMD CANNOT_DUMP; do
5287 CANNOT_DUMP) eval val=\${$opt} ;;
5288 NOTIFY|ACL) eval val=\${${opt}_SUMMARY} ;;
5289 TOOLKIT_SCROLL_BARS|X_TOOLKIT) eval val=\${USE_$opt} ;;
5290 *) eval val=\${HAVE_$opt} ;;
5293 xno|xnone|x) continue ;;
5298 GTK*|LUCID|MOTIF) opt=$val ;;
5303 AS_VAR_APPEND([emacs_config_features], ["$optsep$opt"])
5306 AC_DEFINE_UNQUOTED(EMACS_CONFIG_FEATURES, "${emacs_config_features}",
5307 [Summary of some of the main features enabled by configure.])
5309 AS_ECHO([" Does Emacs use -lXaw3d? ${HAVE_XAW3D}
5310 Does Emacs use -lXpm? ${HAVE_XPM}
5311 Does Emacs use -ljpeg? ${HAVE_JPEG}
5312 Does Emacs use -ltiff? ${HAVE_TIFF}
5313 Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF
5314 Does Emacs use a png library? ${HAVE_PNG} $LIBPNG
5315 Does Emacs use -lrsvg-2? ${HAVE_RSVG}
5316 Does Emacs use cairo? ${HAVE_CAIRO}
5317 Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}
5318 Does Emacs support sound? ${HAVE_SOUND}
5319 Does Emacs use -lgpm? ${HAVE_GPM}
5320 Does Emacs use -ldbus? ${HAVE_DBUS}
5321 Does Emacs use -lgconf? ${HAVE_GCONF}
5322 Does Emacs use GSettings? ${HAVE_GSETTINGS}
5323 Does Emacs use a file notification library? ${NOTIFY_SUMMARY}
5324 Does Emacs use access control lists? ${ACL_SUMMARY}
5325 Does Emacs use -lselinux? ${HAVE_LIBSELINUX}
5326 Does Emacs use -lgnutls? ${HAVE_GNUTLS}
5327 Does Emacs use -lxml2? ${HAVE_LIBXML2}
5328 Does Emacs use -lfreetype? ${HAVE_FREETYPE}
5329 Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}
5330 Does Emacs use -lotf? ${HAVE_LIBOTF}
5331 Does Emacs use -lxft? ${HAVE_XFT}
5332 Does Emacs use -lsystemd? ${HAVE_LIBSYSTEMD}
5333 Does Emacs directly use zlib? ${HAVE_ZLIB}
5334 Does Emacs have dynamic modules support? ${HAVE_MODULES}
5335 Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}
5336 Does Emacs support Xwidgets (requires gtk3)? ${HAVE_XWIDGETS}
5337 Does Emacs have threading support in lisp? ${threads_enabled}
5340 if test -n "${EMACSDATA}"; then
5341 AS_ECHO([" Environment variable EMACSDATA set to: $EMACSDATA"])
5343 if test -n "${EMACSDOC}"; then
5344 AS_ECHO([" Environment variable EMACSDOC set to: $EMACSDOC"])
5349 if test "$HAVE_NS" = "yes"; then
5351 AS_ECHO(["You must run \"${MAKE-make} install\" in order to test the built application.
5352 The installed application will go to nextstep/Emacs.app and can be
5353 run or moved from there."])
5354 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
5355 echo "The application will be fully self-contained."
5357 AS_ECHO(["The lisp resources for the application will be installed under ${prefix}.
5358 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
5359 to run if these resources are not installed."])
5364 if test "${opsys}" = "cygwin"; then
5366 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
5372 # Remove any trailing slashes in these variables.
5374 */) prefix=`AS_DIRNAME(["$prefix."])`;;
5376 case $exec_prefix in
5377 */) exec_prefix=`AS_DIRNAME(["$exec_prefix."])`;;
5380 if test "$HAVE_NS" = "yes"; then
5381 if test "$NS_IMPL_GNUSTEP" = yes; then
5382 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
5383 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
5384 ns_check_file=Resources/Info-gnustep.plist
5386 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
5387 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
5388 ns_check_file=Contents/Info.plist
5390 AC_SUBST(ns_check_file)
5393 dnl config.status treats $srcdir specially, so I think this is ok...
5394 AC_CONFIG_FILES([$srcdir/doc/man/emacs.1])
5396 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
5397 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
5398 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
5399 dnl (else you get "no 'Makefile.am' found for any configure output").
5400 dnl This will work, but you get a config.status that is not quite right
5401 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
5402 dnl That doesn't have any obvious consequences for Emacs, but on the whole
5403 dnl it seems better to just live with the duplication.
5404 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile nt/Makefile"
5406 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
5407 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
5408 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
5409 leim/Makefile nextstep/Makefile nt/Makefile])
5411 dnl test/ is not present in release tarfiles.
5412 opt_makefile=test/Makefile
5414 if test -f "$srcdir/$opt_makefile.in"; then
5415 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
5416 dnl Again, it's best not to use a variable. Though you can add
5417 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
5418 AC_CONFIG_FILES([test/Makefile])
5422 dnl The admin/ directory used to be excluded from tarfiles.
5423 if test -d $srcdir/admin; then
5424 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES admin/charsets/Makefile admin/unidata/Makefile admin/grammars/Makefile"
5425 AC_CONFIG_FILES([admin/charsets/Makefile])
5426 AC_CONFIG_FILES([admin/unidata/Makefile])
5427 AC_CONFIG_FILES([admin/grammars/Makefile])
5431 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
5433 AC_SUBST(SUBDIR_MAKEFILES_IN)
5435 dnl You might wonder (I did) why epaths.h is generated by running make,
5436 dnl rather than just letting configure generate it from epaths.in.
5437 dnl One reason is that the various paths are not fully expanded (see above);
5438 dnl eg gamedir=${prefix}/var/games/emacs.
5439 dnl Secondly, the GNU Coding standards require that one should be able
5440 dnl to run 'make prefix=/some/where/else' and override the values set
5441 dnl by configure. This also explains the 'move-if-change' test and
5442 dnl the use of force in the 'epaths-force' rule in Makefile.in.
5443 AC_CONFIG_COMMANDS([src/epaths.h], [
5444 if test "${opsys}" = "mingw32"; then
5445 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
5447 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
5448 fi || AC_MSG_ERROR(['src/epaths.h' could not be made.])
5449 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
5451 dnl NB we have to cheat and use the ac_... version because abs_top_srcdir
5452 dnl is not yet set, sigh. Or we could use ../$srcdir/src/.gdbinit,
5454 AC_CONFIG_COMMANDS([src/.gdbinit], [
5455 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
5456 AS_ECHO(["source $ac_abs_top_srcdir/src/.gdbinit"]) > src/.gdbinit
5460 dnl Perhaps this would be better named doc-emacs-emacsver.texi?
5461 dnl See comments for etc-refcards-emacsver.tex.
5462 dnl Since we get a doc/emacs directory generated anyway, for the Makefile,
5463 dnl it is not quite the same. But we are generating in $srcdir.
5464 AC_CONFIG_COMMANDS([doc/emacs/emacsver.texi], [
5465 ${MAKE-make} -s --no-print-directory -C doc/emacs doc-emacsver || \
5466 AC_MSG_ERROR(['doc/emacs/emacsver.texi' could not be made.])
5469 dnl If we give this the more natural name, etc/refcards/emacsver.texi,
5470 dnl then a directory etc/refcards is created in the build directory,
5471 dnl which is probably harmless, but confusing (in out-of-tree builds).
5472 dnl (If we were to generate etc/refcards/Makefile, this might change.)
5473 dnl It is really $srcdir/etc/refcards/emacsver.tex that we generate.
5474 AC_CONFIG_COMMANDS([etc-refcards-emacsver.tex], [
5475 ${MAKE-make} -s MAKEFILE_NAME=do-not-make-Makefile etc-emacsver || \
5476 AC_MSG_ERROR(['etc/refcards/emacsver.tex' could not be made.])
5481 test "$MAKE" = make || AC_MSG_NOTICE([Now you can run '$MAKE'.])