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 AC_CONFIG_MACRO_DIR(m4)
73 AC_CHECK_PROGS(XCRUN, [xcrun])
74 if test -n "$XCRUN"; then
75 if test -z "$MAKE"; then
76 dnl Call the variable MAKE_PROG, not MAKE, to avoid confusion with
77 dnl the usual MAKE variable that 'make' itself uses.
78 AC_CHECK_PROG([MAKE_PROG], [make], [yes])
79 if test -z "$MAKE_PROG"; then
82 xcsdkdir=`$XCRUN --show-sdk-path 2>/dev/null`
87 dnl Check for GNU Make and possibly set MAKE.
88 [emacs_check_gnu_make ()
90 emacs_makeout=`($1 --version) 2>/dev/null` &&
91 case $emacs_makeout in
92 'GNU Make '3.8[1-9]* | 'GNU Make '3.9[0-9]* | \
93 'GNU Make '3.[1-9][0-9][0-9]* | 'GNU Make '[4-9]* | 'GNU Make '[1-9][0-9]* )
94 ac_path_MAKE_found=:;;
97 AC_CACHE_CHECK([for GNU Make], [ac_cv_path_MAKE],
98 [ac_path_MAKE_found=false
99 if test -n "$MAKE"; then
100 emacs_check_gnu_make "$MAKE"
101 ac_cv_path_MAKE=$MAKE
103 emacs_tried_make=false
104 emacs_tried_gmake=false
105 emacs_tried_gnumake=false
106 AC_PATH_PROGS_FEATURE_CHECK([MAKE], [make gmake gnumake],
107 [[emacs_check_gnu_make "$ac_path_MAKE"
108 if $ac_path_MAKE_found; then
109 # Use the fully-qualified program name only if the basename
110 # would not resolve to it.
111 if eval \$emacs_tried_$ac_prog; then
112 ac_cv_path_MAKE=$ac_path_MAKE
114 ac_cv_path_MAKE=$ac_prog
117 eval emacs_tried_$ac_prog=:]])
119 $ac_path_MAKE_found || {
120 AC_MSG_ERROR([[Building Emacs requires GNU Make, at least version 3.81.
121 If you have it installed under another name, configure with 'MAKE=...'.
122 For example, run '$0 MAKE=gnu-make'.]])
124 MAKE=$ac_cv_path_MAKE
127 dnl Canonicalize the configuration name.
133 if test -z "$host_alias"; then
135 # No --host argument was given to 'configure'; therefore $host
136 # was set to a default value based on the build platform. But
137 # this default value may be wrong if we are building from a
138 # 64-bit MSYS[2] pre-configured to build 32-bit MinGW programs.
139 # Therefore, we'll try to get the right host platform from the
142 AC_MSG_CHECKING([the compiler's target])
143 if test -z "$CC"; then
148 cc_target=`$cc -v 2>&1 | sed -n 's/Target: //p'`
152 "") AC_MSG_ERROR([Impossible to obtain $cc compiler target.
153 Please explicitly provide --host.])
155 *) AC_MSG_WARN([Compiler reported non-standard target.
156 Defaulting to $host.])
159 AC_MSG_RESULT([$host])
162 . $srcdir/nt/mingw-cfg.site
166 # srcdir is an absolute path. In this case, force the format
167 # "/c/foo/bar", to simplify later conversions to native Windows
168 # format ("c:/foo/bar").
169 srcdir=`cd "${srcdir}" && pwd -W`
170 # 'eval' pacifies strict POSIX non-MinGW shells (Bug#18612).
171 eval 'srcdir="/${srcdir:0:1}${srcdir:2}"'
177 configuration=${host_alias-${build_alias-$host}}
179 dnl Support for --program-prefix, --program-suffix and
180 dnl --program-transform-name options
183 dnl It is important that variables on the RHS not be expanded here,
184 dnl hence the single quotes. This is per the GNU coding standards, see
185 dnl (autoconf) Installation Directory Variables
186 dnl See also epaths.h below.
187 lispdir='${datadir}/emacs/${version}/lisp'
188 standardlisppath='${lispdir}'
189 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
190 '${datadir}/emacs/site-lisp'
191 lisppath='${locallisppath}:${standardlisppath}'
192 etcdir='${datadir}/emacs/${version}/etc'
193 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
194 etcdocdir='${datadir}/emacs/${version}/etc'
195 gamedir='${localstatedir}/games/emacs'
197 dnl Special option to disable the most of other options.
199 [AS_HELP_STRING([--without-all],
200 [omit almost all features and build
201 small executable with minimal dependencies])],
202 [with_features=$withval],
205 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
206 dnl Create a new --with option that defaults to being disabled.
207 dnl NAME is the base name of the option. The shell variable with_NAME
208 dnl will be set to either the user's value (if the option is
209 dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
210 dnl option is not specified). Note that the shell variable name is
211 dnl constructed as autoconf does, by replacing non-alphanumeric
212 dnl characters with "_".
213 dnl HELP-STRING is the help text for the option.
214 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
215 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
216 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
219 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
220 dnl Create a new --with option that defaults to $with_features.
221 dnl NAME is the base name of the option. The shell variable with_NAME
222 dnl will be set either to 'no' (for a plain --without-NAME) or to
223 dnl 'yes' (if the option is not specified). Note that the shell
224 dnl variable name is constructed as autoconf does, by replacing
225 dnl non-alphanumeric characters with "_".
226 dnl HELP-STRING is the help text for the option.
227 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
228 AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
229 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=$with_features])dnl
232 # FIXME: The default options '--without-mailutils --with-pop' result
233 # in a movemail implementation that supports only unencrypted POP3
234 # connections. Encrypted connections should be the default.
236 OPTION_DEFAULT_OFF([mailutils],
237 [rely on GNU Mailutils, so that the --without-pop through --with-mailhost
238 options are irrelevant])
239 if test "$with_mailutils" = no; then
242 AC_SUBST([with_mailutils])
244 OPTION_DEFAULT_ON([pop],
245 [don't support POP mail retrieval with movemail (--without-pop or
246 --with-mailutils is recommended, as movemail POP is insecure)])
247 if test "$with_pop" = yes; then
248 AC_DEFINE(MAIL_USE_POP)
250 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
252 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
253 if test "$with_kerberos" != no; then
256 AH_TEMPLATE(KERBEROS,
257 [Define to support Kerberos-authenticated POP mail retrieval.])dnl
259 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
260 if test "${with_kerberos5}" != no; then
261 if test "${with_kerberos}" = no; then
265 AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
268 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
269 dnl FIXME hesiod support may not be present, so it seems like an error
270 dnl to define, or at least use, this unconditionally.
271 if test "$with_hesiod" != no; then
272 AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
275 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
276 if test "$with_mail_unlink" != no; then
277 AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
280 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
281 [string giving default POP mail host])],
282 AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
284 AC_ARG_WITH([sound],[AS_HELP_STRING([--with-sound=VALUE],
285 [compile with sound support (VALUE one of: yes, alsa, oss, bsd-ossaudio, no;
286 default yes). Only for GNU/Linux, FreeBSD, NetBSD, MinGW, Cygwin.])],
287 [ case "${withval}" in
288 yes|no|alsa|oss|bsd-ossaudio) val=$withval ;;
289 *) AC_MSG_ERROR(['--with-sound=$withval' is invalid;
290 this option's value should be 'yes', 'no', 'alsa', 'oss', or 'bsd-ossaudio'.])
295 [with_sound=$with_features])
297 dnl FIXME currently it is not the last.
298 dnl This should be the last --with option, because --with-x is
299 dnl added later on when we find the file name of X, and it's best to
300 dnl keep them together visually.
301 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
302 [use an X toolkit (KIT one of: yes or gtk, gtk2, gtk3, lucid or athena, motif, no)])],
303 [ case "${withval}" in
304 y | ye | yes ) val=gtk ;;
306 l | lu | luc | luci | lucid ) val=lucid ;;
307 a | at | ath | athe | athen | athena ) val=athena ;;
308 m | mo | mot | moti | motif ) val=motif ;;
309 g | gt | gtk ) val=gtk ;;
313 AC_MSG_ERROR(['--with-x-toolkit=$withval' is invalid;
314 this option's value should be 'yes', 'no', 'lucid', 'athena', 'motif', 'gtk',
315 'gtk2' or 'gtk3'. 'yes' and 'gtk' are synonyms.
316 'athena' and 'lucid' are synonyms.])
322 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])
323 if test "$with_wide_int" = yes; then
324 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
327 dnl _ON results in a '--without' option in the --help output, so
328 dnl the help text should refer to "don't compile", etc.
329 with_xpm_set=${with_xpm+set}
330 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
331 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
332 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
333 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
334 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
335 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
336 OPTION_DEFAULT_ON([libsystemd],[don't compile with libsystemd support])
337 OPTION_DEFAULT_OFF([cairo],[compile with Cairo drawing (experimental)])
338 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
339 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
341 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
342 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
343 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
345 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
346 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
347 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
348 AC_ARG_WITH([ns],[AS_HELP_STRING([--with-ns],
349 [use Nextstep (macOS Cocoa or GNUstep) windowing system.
350 On by default on macOS.])],[],[with_ns=maybe])
351 OPTION_DEFAULT_OFF([w32], [use native MS Windows GUI in a Cygwin build])
353 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
354 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
355 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
356 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
357 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
358 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
359 OPTION_DEFAULT_ON([zlib],[don't compile with zlib decompression support])
360 OPTION_DEFAULT_OFF([modules],[compile with dynamic modules support])
361 OPTION_DEFAULT_ON([threads],[don't compile with elisp threading support])
363 AC_ARG_WITH([file-notification],[AS_HELP_STRING([--with-file-notification=LIB],
364 [use a file notification library (LIB one of: yes, inotify, kqueue, gfile, w32, no)])],
365 [ case "${withval}" in
366 y | ye | yes ) val=yes ;;
368 i | in | ino | inot | inoti | inotif | inotify ) val=inotify ;;
369 k | kq | kqu | kque | kqueu | kqueue ) val=kqueue ;;
370 g | gf | gfi | gfil | gfile ) val=gfile ;;
371 w | w3 | w32 ) val=w32 ;;
372 * ) AC_MSG_ERROR(['--with-file-notification=$withval' is invalid;
373 this option's value should be 'yes', 'no', 'inotify', 'kqueue', 'gfile' or 'w32'.
374 'yes' is a synonym for 'w32' on MS-Windows, for 'no' on Nextstep,
375 otherwise for the first of 'inotify', 'kqueue' or 'gfile' that is usable.])
378 with_file_notification=$val
380 [with_file_notification=$with_features])
382 OPTION_DEFAULT_OFF([xwidgets],
383 [enable use of some gtk widgets in Emacs buffers (requires gtk3)])
385 ## For the times when you want to build Emacs but don't have
386 ## a suitable makeinfo, and can live without the manuals.
387 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
388 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
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 case ${with_gameuser} in
407 yes) gamegroup=games ;;
408 :*) gamegroup=${with_gameuser#:} ;;
409 *) gameuser=${with_gameuser} ;;
412 AC_ARG_WITH([gnustep-conf],dnl
413 [AS_HELP_STRING([--with-gnustep-conf=FILENAME],
414 [name of GNUstep configuration file to use on systems where the command
415 'gnustep-config' does not work; default $GNUSTEP_CONFIG_FILE, or
416 /etc/GNUstep/GNUstep.conf])])
417 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
418 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
419 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
420 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
422 AC_ARG_ENABLE(ns-self-contained,
423 [AS_HELP_STRING([--disable-ns-self-contained],
424 [disable self contained build under NeXTstep])],
425 EN_NS_SELF_CONTAINED=$enableval,
426 EN_NS_SELF_CONTAINED=yes)
429 AC_ARG_ENABLE(locallisppath,
430 [AS_HELP_STRING([--enable-locallisppath=PATH],
431 [directories Emacs should search for lisp files specific
433 if test "${enableval}" = "no"; then
435 elif test "${enableval}" != "yes"; then
436 locallisppath=${enableval} locallisppathset=yes
439 AC_ARG_ENABLE(checking,
440 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
441 [enable expensive run-time checks. With LIST,
442 enable only specific categories of checks.
443 Categories are: all,yes,no.
444 Flags are: stringbytes, stringoverrun, stringfreelist,
445 xmallocoverrun, conslist, glyphs])],
446 [ac_checking_flags="${enableval}"],[])
447 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
448 for check in $ac_checking_flags
451 # these set all the flags to specific states
452 yes) ac_enable_checking=1 ;;
453 no) ac_enable_checking= ;
454 ac_gc_check_stringbytes= ;
455 ac_gc_check_string_overrun= ;
456 ac_gc_check_string_free_list= ;
457 ac_xmalloc_overrun= ;
458 ac_gc_check_cons_list= ;
460 all) ac_enable_checking=1 ;
461 ac_gc_check_stringbytes=1 ;
462 ac_gc_check_string_overrun=1 ;
463 ac_gc_check_string_free_list=1 ;
464 ac_xmalloc_overrun=1 ;
465 ac_gc_check_cons_list=1 ;
467 # these enable particular checks
468 stringbytes) ac_gc_check_stringbytes=1 ;;
469 stringoverrun) ac_gc_check_string_overrun=1 ;;
470 stringfreelist) ac_gc_check_string_free_list=1 ;;
471 xmallocoverrun) ac_xmalloc_overrun=1 ;;
472 conslist) ac_gc_check_cons_list=1 ;;
473 glyphs) ac_glyphs_debug=1 ;;
474 *) AC_MSG_ERROR(unknown check category $check) ;;
479 if test x$ac_enable_checking != x ; then
480 AC_DEFINE(ENABLE_CHECKING, 1,
481 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
483 if test x$ac_gc_check_stringbytes != x ; then
484 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
485 [Define this temporarily to hunt a bug. If defined, the size of
486 strings is redundantly recorded in sdata structures so that it can
487 be compared to the sizes recorded in Lisp strings.])
489 if test x$ac_gc_check_string_overrun != x ; then
490 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
491 [Define this to check for short string overrun.])
493 if test x$ac_gc_check_string_free_list != x ; then
494 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
495 [Define this to check the string free list.])
497 if test x$ac_xmalloc_overrun != x ; then
498 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
499 [Define this to check for malloc buffer overrun.])
501 if test x$ac_gc_check_cons_list != x ; then
502 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
503 [Define this to check for errors in cons list.])
505 if test x$ac_glyphs_debug != x ; then
506 AC_DEFINE(GLYPH_DEBUG, 1,
507 [Define this to enable glyphs debugging code.])
510 AC_ARG_ENABLE(check-lisp-object-type,
511 [AS_HELP_STRING([--enable-check-lisp-object-type],
512 [enable compile time checks for the Lisp_Object data type.
513 This is useful for development for catching certain types of bugs.])],
514 if test "${enableval}" != "no"; then
515 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
516 [Define this to enable compile time checks for the Lisp_Object data type.])
520 dnl The name of this option is unfortunate. It predates, and has no
521 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
522 dnl Actually, it stops it working.
523 dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
524 AC_ARG_ENABLE(profiling,
525 [AS_HELP_STRING([--enable-profiling],
526 [build emacs with low-level, gprof profiling support.
527 Mainly useful for debugging Emacs itself. May not work on
528 all platforms. Stops profiler.el working.])],
529 [ac_enable_profiling="${enableval}"],[])
530 if test x$ac_enable_profiling != x ; then
531 PROFILING_CFLAGS="-DPROFILING=1 -pg"
535 AC_SUBST(PROFILING_CFLAGS)
537 AC_ARG_ENABLE(autodepend,
538 [AS_HELP_STRING([--enable-autodepend],
539 [automatically generate dependencies to .h-files.
540 Requires gcc, enabled if found.])],
541 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
543 AC_ARG_ENABLE(gtk-deprecation-warnings,
544 [AS_HELP_STRING([--enable-gtk-deprecation-warnings],
545 [Show Gtk+/Gdk deprecation warnings for Gtk+ >= 3.0])],
546 [ac_enable_gtk_deprecation_warnings="${enableval}"],[])
549 AC_ARG_ENABLE([build-details],
550 [AS_HELP_STRING([--disable-build-details],
551 [Make the build more deterministic by omitting host
552 names, time stamps, etc. from the output.])],
553 [test "$enableval" = no && BUILD_DETAILS=--no-build-details])
554 AC_SUBST([BUILD_DETAILS])
556 dnl This used to use changequote, but, apart from 'changequote is evil'
557 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
558 dnl the great gob of text. Thus it's not processed for possible expansion.
559 dnl Just make sure the brackets remain balanced.
561 dnl Since Emacs can't find matching pairs of quotes, boundaries are
562 dnl indicated by comments.
566 ### If you add support for a new configuration, add code to this
567 ### switch statement to recognize your configuration name and select
568 ### the appropriate opsys.
570 ### As far as handling version numbers on operating systems is
571 ### concerned, make sure things will fail in a fixable way. If
572 ### /etc/MACHINES doesn't say anything about version numbers, be
573 ### prepared to handle anything reasonably. If version numbers
574 ### matter, be sure /etc/MACHINES says something about it.
577 case "${canonical}" in
579 ## GNU/Linux and similar ports
594 ## FreeBSD kernel + glibc based userland
605 *-*-openbsd* | *-*-mirbsd* )
609 ## Apple Darwin / macOS
611 case "${canonical}" in
612 *-apple-darwin[0-9].*) unported=yes ;;
613 i[3456]86-* | x86_64-* ) ;;
617 ## FIXME: Find a way to use Fink if available (Bug#11507).
620 ## Chromium Native Client
630 ## HP 9000 series 700 and 800, running HP/UX
634 hppa*-hp-hpux1[1-9]* )
636 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
640 rs6000-ibm-aix4.[23]* )
643 powerpc-ibm-aix4.[23]* )
646 rs6000-ibm-aix[56]* )
649 powerpc-ibm-aix[5-9]* | powerpc-ibm-aix[1-9][0-9]* )
655 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
656 | x86_64-*-solaris2* | x86_64-*-sunos5*)
657 case "${canonical}" in
659 amd64-*-*|x86_64-*-*) ;;
663 case "${canonical}" in
664 *-sunos5.[1-9][0-9]* | *-solaris2.[1-9][0-9]* )
666 emacs_check_sunpro_c=yes
668 *-sunos5.[1-5]* | *-solaris2.[1-5]* ) unported=yes ;;
669 ## Note that Emacs 23.1's NEWS said the following would be dropped.
670 *-sunos5.6* | *-solaris2.6* )
674 ## 5.7 EOL Aug 2008, 5.8 EOL Mar 2012.
675 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
677 emacs_check_sunpro_c=yes
680 ## Watch out for a compiler that we know will not work.
681 case "${canonical}" in
682 *-solaris* | *-sunos5* )
683 if [ "x$CC" = x/usr/ucb/cc ]; then
684 ## /usr/ucb/cc doesn't work;
685 ## we should find some other compiler that does work.
693 ## Intel 386 machines where we don't care about the manufacturer.
695 case "${canonical}" in
696 *-darwin* ) opsys=darwin ;;
699 # MinGW overrides and adds some system headers in nt/inc.
700 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
702 *-sysv4.2uw* ) opsys=unixware ;;
703 *-sysv5uw* ) opsys=unixware ;;
704 *-sysv5OpenUNIX* ) opsys=unixware ;;
705 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
711 case "${canonical}" in
714 # MinGW overrides and adds some system headers in nt/inc.
715 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
717 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
726 ### If the code above didn't choose an operating system, just choose
727 ### an operating system based on the configuration name. You really
728 ### only want to use this when you have no idea what the right
729 ### operating system is; if you know what operating systems a machine
730 ### runs, it's cleaner to make it explicit in the case statement
732 if test x"${opsys}" = x; then
733 case "${canonical}" in
734 *-gnu* ) opsys=gnu ;;
744 if test $unported = yes; then
745 AC_MSG_ERROR([Emacs does not support '${canonical}' systems.
746 If you think it should, please send a report to ${PACKAGE_BUGREPORT}.
747 Check 'etc/MACHINES' for recognized configuration names.])
750 #### Choose a compiler.
752 dnl Don't bother to test for C89.
753 AC_DEFUN([_AC_PROG_CC_C89], [$2])
755 dnl Sets GCC=yes if using gcc.
756 AC_PROG_CC([gcc cc cl clang "$XCRUN gcc" "$XCRUN clang"])
757 if test -n "$XCRUN"; then
758 AC_CHECK_PROGS(AR, [ar "$XCRUN ar"])
759 test -n "$AR" && export AR
762 dnl Emacs needs C99 or later.
767 if test x$GCC = xyes; then
768 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
771 # Avoid gnulib's tests for -lcrypto, so that there's no static dependency on it.
772 AC_DEFUN([gl_CRYPTO_CHECK])
773 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
774 # as we don't use them.
775 AC_DEFUN([gl_FCNTL_O_FLAGS])
776 # Avoid gnulib's test for pthread_sigmask.
778 for func in $ac_func_list; do
779 test $func = pthread_sigmask || AS_VAR_APPEND([funcs], [" $func"])
782 # Use the system putenv even if it lacks GNU features, as we don't need them,
783 # and the gnulib replacement runs afoul of a FreeBSD 10.1 bug; see Bug#19874.
784 AC_CHECK_FUNCS_ONCE([putenv])
785 AC_DEFUN([gl_FUNC_PUTENV],
786 [test "$ac_cv_func_putenv" = yes || REPLACE_PUTENV=1])
787 # Emacs does not use the wchar or wctype-h modules.
788 AC_DEFUN([gt_TYPE_WINT_T],
789 [GNULIB_OVERRIDES_WINT_T=0
790 AC_SUBST([GNULIB_OVERRIDES_WINT_T])])
792 # Initialize gnulib right after choosing the compiler.
793 dnl Amongst other things, this sets AR and ARFLAGS.
796 if test "$ac_test_CFLAGS" != set; then
797 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
798 # if -g3 works and the user does not specify CFLAGS.
799 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
802 emacs_g3_CFLAGS='-g3';;
804 emacs_g3_CFLAGS='-g3 -O2';;
808 if test -n "$emacs_g3_CFLAGS"; then
809 emacs_save_CFLAGS=$CFLAGS
810 CFLAGS=$emacs_g3_CFLAGS
811 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
812 [emacs_cv_prog_cc_g3],
813 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
814 [emacs_cv_prog_cc_g3=yes],
815 [emacs_cv_prog_cc_g3=no])])
816 if test $emacs_cv_prog_cc_g3 != yes; then
817 CFLAGS=$emacs_save_CFLAGS
819 if test $opsys = mingw32; then
820 CFLAGS="$CFLAGS -gdwarf-2"
827 # No optimization flag was inferred for this non-GCC compiler.
828 # Try -O. This is needed for xlc on AIX; see Bug#14258.
829 emacs_save_CFLAGS=$CFLAGS
830 test -z "$CFLAGS" || CFLAGS="$CFLAGS "
832 AC_CACHE_CHECK([whether $CC accepts -O],
833 [emacs_cv_prog_cc_o],
834 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
835 [emacs_cv_prog_cc_o=yes],
836 [emacs_cv_prog_cc_o=no])])
837 if test $emacs_cv_prog_cc_o != yes; then
838 CFLAGS=$emacs_save_CFLAGS
843 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
844 # ---------------------------------------------------------------------------
845 # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
846 # Otherwise, run RUN-IF-NOT-FOUND.
847 AC_DEFUN([gl_GCC_VERSION_IFELSE],
851 #if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
854 # error "your version of gcc is older than $1.$2"
861 AC_ARG_ENABLE([gcc-warnings],
862 [AS_HELP_STRING([--enable-gcc-warnings@<:@=TYPE@:>@],
863 [control generation of GCC warnings. The TYPE 'yes'
864 means to fail if any warnings are issued; 'warn-only'
865 means issue warnings without failing (default for
866 developer builds); 'no' means disable warnings
867 (default for non-developer builds).])],
870 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
872 gl_gcc_warnings=$enableval],
873 [# By default, use 'warn-only' if it looks like the invoker of 'configure'
874 # is a developer as opposed to a builder. This is most likely true
875 # if GCC is recent enough and there is a .git directory or file;
876 # however, if there is also a .tarball-version file it is probably
877 # just a release imported into Git for patch management.
879 if test -e "$srcdir"/.git && test ! -f "$srcdir"/.tarball-version; then
880 gl_GCC_VERSION_IFELSE([5], [3], [gl_gcc_warnings=warn-only])]
884 # clang is unduly picky about some things.
885 AC_CACHE_CHECK([whether the compiler is clang], [emacs_cv_clang],
892 [emacs_cv_clang=yes],
893 [emacs_cv_clang=no])])
895 # When compiling with GCC, prefer -isystem to -I when including system
896 # include files, to avoid generating useless diagnostics for the files.
897 AS_IF([test $gl_gcc_warnings = no],
900 AS_IF([test "$emacs_cv_clang" = yes],
902 # Turn off some warnings if supported.
903 gl_WARN_ADD([-Wno-switch])
904 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
905 gl_WARN_ADD([-Wno-pointer-sign])
906 gl_WARN_ADD([-Wno-string-plus-int])
907 gl_WARN_ADD([-Wno-unknown-attributes])
912 # This, $nw, is the list of warnings we disable.
915 case $with_x_toolkit in
916 lucid | athena | motif)
917 # Old toolkits mishandle 'const'.
918 nw="$nw -Wwrite-strings"
921 AS_IF([test $gl_gcc_warnings = yes],
922 [gl_WARN_ADD([-Werror], [WERROR_CFLAGS])])
923 AC_SUBST([WERROR_CFLAGS])
925 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
926 nw="$nw -Woverlength-strings" # Not a problem these days
927 nw="$nw -Wformat-nonliteral" # we do this a lot
928 nw="$nw -Wvla" # Emacs uses <vla.h>.
929 nw="$nw -Wswitch-default" # Too many warnings for now
930 nw="$nw -Wunused-const-variable=2" # lisp.h declares const objects.
931 nw="$nw -Winline" # OK to ignore 'inline'
932 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
933 # signed overflow has undefined behavior
934 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
935 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
936 nw="$nw -Wbad-function-cast" # These casts are no worse than others.
938 # Emacs doesn't care about shadowing; see
939 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
942 # Emacs's use of alloca inhibits protecting the stack.
943 nw="$nw -Wstack-protector"
945 # Emacs's use of partly-const functions such as Fgnutls_available_p
946 # make this option problematic.
947 nw="$nw -Wsuggest-attribute=const"
949 # Emacs's use of partly-pure functions such as CHECK_TYPE make this
950 # option problematic.
951 nw="$nw -Wsuggest-attribute=pure"
953 # This part is merely for shortening the command line,
954 # since -Wall implies -Wswitch.
957 # This part is merely for shortening the command line,
958 # since -Wno-FOO needs to be added below regardless.
959 nw="$nw -Wmissing-field-initializers"
960 nw="$nw -Wtype-limits"
961 nw="$nw -Wunused-parameter"
963 if test $emacs_cv_clang = yes; then
964 nw="$nw -Wcast-align"
967 # This causes too much noise in the MinGW build
968 if test $opsys = mingw32; then
969 nw="$nw -Wpointer-sign"
972 gl_MANYWARN_ALL_GCC([ws])
973 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
977 gl_WARN_ADD([-Wredundant-decls]) # Prefer this, as we don't use Bison.
978 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
979 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
980 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
981 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
982 gl_WARN_ADD([-Wno-format-nonliteral])
984 # More things that clang is unduly picky about.
985 if test $emacs_cv_clang = yes; then
986 gl_WARN_ADD([-Wno-tautological-compare])
987 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
990 # This causes too much noise in the MinGW build
991 if test $opsys = mingw32; then
992 gl_WARN_ADD([-Wno-pointer-sign])
995 AC_DEFINE([GCC_LINT], [1], [Define to 1 if --enable-gcc-warnings.])
996 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
997 AH_VERBATIM([GNULIB_PORTCHECK_FORTIFY_SOURCE],
998 [/* Enable compile-time and run-time bounds-checking, and some warnings,
999 without upsetting glibc 2.15+. */
1000 #if (defined GNULIB_PORTCHECK && !defined _FORTIFY_SOURCE \
1001 && defined __OPTIMIZE__ && __OPTIMIZE__)
1002 # define _FORTIFY_SOURCE 2
1006 # We use a slightly smaller set of warning options for lib/.
1007 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
1009 nw="$nw -Wunused-macros"
1011 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
1012 AC_SUBST([GNULIB_WARN_CFLAGS])
1022 AC_ARG_ENABLE(link-time-optimization,
1023 [AS_HELP_STRING([--enable-link-time-optimization],
1024 [build emacs with link-time optimization.
1025 This requires GCC 4.5.0 or later, or clang.
1026 (Note that clang support is experimental - see INSTALL.)
1027 It also makes Emacs harder to debug, and when we tried it
1028 with GCC 4.9.0 x86-64 it made Emacs slower, so it's not
1029 recommended for typical use.])],
1030 if test "${enableval}" != "no"; then
1032 if test $emacs_cv_clang = yes; then
1033 AC_MSG_CHECKING([whether link-time optimization is supported by clang])
1034 GOLD_PLUGIN=`$CC -print-file-name=LLVMgold.so 2>/dev/null`
1035 if test -x "$GOLD_PLUGIN"; then
1038 elif test x$GCC = xyes; then
1039 AC_MSG_CHECKING([whether link-time optimization is supported by gcc])
1040 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
1041 if test x$CPUS != x; then
1047 AC_MSG_ERROR([Link-time optimization is not supported with your compiler.])
1049 if test -z "$LTO"; then
1053 CFLAGS="$CFLAGS $LTO"
1054 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1055 [ac_lto_supported=yes], [ac_lto_supported=no])
1056 CFLAGS="$old_CFLAGS"
1058 AC_MSG_RESULT([$ac_lto_supported])
1059 if test "$ac_lto_supported" = "yes"; then
1060 CFLAGS="$CFLAGS $LTO"
1061 if test x$emacs_cv_clang = xyes; then
1062 AC_MSG_WARN([Please read INSTALL before using link-time optimization with clang])
1063 # WARNING: 'ar --plugin ...' doesn't work without
1064 # command, so plugin name is appended to ARFLAGS.
1065 ARFLAGS="cru --plugin $GOLD_PLUGIN"
1066 RANLIB="$RANLIB --plugin $GOLD_PLUGIN"
1068 dnl The following is needed for GCC 4.9.0. The GCC 4.9.0 release notes
1069 dnl suggest that instead of -ffat-lto-objects we should use gcc-ar and
1070 dnl gcc-ranlib in place of ar and ranlib, but gcc-ar makes /usr/bin/ar
1071 dnl dump core on Fedora 20, so play it safe for now.
1072 gl_COMPILER_OPTION_IF([-ffat-lto-objects],
1073 [CFLAGS="$CFLAGS -ffat-lto-objects"])
1079 dnl Automake replacements.
1080 AC_DEFUN([AM_CONDITIONAL],
1084 dnl Prefer silent make output. For verbose output, use
1085 dnl 'configure --disable-silent-rules' or 'make V=1' .
1086 dnl This code is adapted from Automake.
1087 dnl Although it can be simplified now that GNU Make is assumed,
1088 dnl the simplification hasn't been done yet.
1089 AC_ARG_ENABLE([silent-rules],
1091 [--disable-silent-rules],
1092 [verbose build output (undo: "make V=0")])])
1093 if test "$enable_silent_rules" = no; then
1094 AM_DEFAULT_VERBOSITY=1
1096 AM_DEFAULT_VERBOSITY=0
1099 AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
1101 AC_SUBST([AM_DEFAULT_V])
1102 AC_SUBST([AM_DEFAULT_VERBOSITY])
1104 dnl Some other nice autoconf tests.
1106 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
1108 dnl if test "x$RANLIB" = x; then
1113 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
1114 dnl can be made to directories. This is not relevant for our usage, and
1115 dnl excludes some cases that work fine for us. Eg MS Windows or files
1116 dnl hosted on AFS, both examples where simple links work, but links to
1117 dnl directories fail. We use a cut-down version instead.
1120 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
1121 rm -f conf$$ conf$$.file
1123 LN_S_FILEONLY='cp -p'
1125 dnl On MinGW, ensure we will call the MSYS /bin/ln.exe, not some
1126 dnl random program in the current directory.
1127 if (echo >conf$$.file) 2>/dev/null; then
1128 if ln -s conf$$.file conf$$ 2>/dev/null; then
1129 if test "$opsys" = "mingw32"; then
1130 LN_S_FILEONLY='/bin/ln -s'
1132 LN_S_FILEONLY='ln -s'
1134 elif ln conf$$.file conf$$ 2>/dev/null; then
1135 if test "$opsys" = "mingw32"; then
1136 LN_S_FILEONLY=/bin/ln
1143 rm -f conf$$ conf$$.file
1145 if test "$LN_S_FILEONLY" = "ln -s"; then
1146 AC_MSG_RESULT([yes])
1148 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
1151 AC_SUBST(LN_S_FILEONLY)
1154 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
1155 dnl doesn't support links to directories, as in "ln file dir". But that
1156 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
1157 dnl executables at "make install" time.
1158 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
1159 dnl for more details.
1160 if test "$opsys" = "mingw32"; then
1164 dnl On some Debian versions, "install-info" prints irritating messages
1165 dnl "This is not dpkg install-info anymore, but GNU install-info"
1166 dnl if called via an absolute file name.
1167 dnl Use the entirely-identical-but-quieter ginstall-info instead if present.
1168 dnl Sadly some people may have an old ginstall-info installed on
1169 dnl non-Debian systems, so we can't use this.
1170 dnl AC_PATH_PROGS(INSTALL_INFO, [ginstall-info install-info], :,
1171 dnl $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1173 AC_PATH_PROG(INSTALL_INFO, install-info, :,
1174 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1175 dnl Don't use GZIP, which is used by gzip for additional parameters.
1176 AC_PATH_PROG(GZIP_PROG, gzip)
1178 test $with_compress_install != yes && test -n "$GZIP_PROG" && \
1179 GZIP_PROG=" # $GZIP_PROG # (disabled by configure --without-compress-install)"
1181 AC_CACHE_CHECK([for 'find' args to delete a file],
1182 [emacs_cv_find_delete],
1183 [if touch conftest.tmp && find conftest.tmp -delete 2>/dev/null &&
1184 test ! -f conftest.tmp
1185 then emacs_cv_find_delete="-delete"
1186 else emacs_cv_find_delete="-exec rm -f {} ';'"
1188 FIND_DELETE=$emacs_cv_find_delete
1189 AC_SUBST([FIND_DELETE])
1193 if test $opsys = gnu-linux; then
1194 if test "${SETFATTR+set}" != set; then
1195 AC_CACHE_CHECK([for setfattr],
1196 [emacs_cv_prog_setfattr],
1198 if (setfattr -n user.pax.flags conftest.tmp) >/dev/null 2>&1; then
1199 emacs_cv_prog_setfattr=yes
1201 emacs_cv_prog_setfattr=no
1203 if test "$emacs_cv_prog_setfattr" = yes; then
1204 PAXCTL_notdumped='$(SETFATTR) -n user.pax.flags -v er'
1210 AC_SUBST([SETFATTR])
1213 case $opsys,$PAXCTL_notdumped in
1214 gnu-linux, | netbsd,)
1215 AC_PATH_PROG([PAXCTL], [paxctl], [],
1216 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
1217 if test -n "$PAXCTL"; then
1218 if test "$opsys" = netbsd; then
1219 PAXCTL_dumped='$(PAXCTL) +a'
1220 PAXCTL_notdumped=$PAXCTL_dumped
1222 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
1223 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1224 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then
1225 AC_MSG_RESULT([yes])
1230 if test -n "$PAXCTL"; then
1231 PAXCTL_dumped='$(PAXCTL) -zex'
1232 PAXCTL_notdumped='$(PAXCTL) -r'
1237 AC_SUBST([PAXCTL_dumped])
1238 AC_SUBST([PAXCTL_notdumped])
1240 ## Require makeinfo >= 4.13 (last of the 4.x series) to build the manuals.
1241 if test "${MAKEINFO:=makeinfo}" != "no"; then
1242 case `($MAKEINFO --version) 2>/dev/null` in
1243 *' (GNU texinfo) '4.1[[3-9]]* | \
1244 *' (GNU texinfo) '[[5-9]]* | \
1245 *' (GNU texinfo) '[[1-9][0-9]]* ) ;;
1250 ## Makeinfo is unusual. For a released Emacs, the manuals are
1251 ## pre-built, and not deleted by the normal clean rules. makeinfo is
1252 ## therefore in the category of "special tools" not normally required, which
1253 ## configure does not have to check for (eg autoconf itself).
1254 ## In a repository checkout on the other hand, the manuals are not included.
1255 ## So makeinfo is a requirement to build from the repository, and configure
1256 ## should test for it as it does for any other build requirement.
1257 ## We use the presence of $srcdir/info/emacs to distinguish a release,
1258 ## with pre-built manuals, from a repository checkout.
1261 if test "$MAKEINFO" = "no"; then
1263 if test "x${with_makeinfo}" = "xno"; then
1265 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
1266 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.13, and your
1267 source tree does not seem to have pre-built manuals in the 'info' directory.
1268 Either install a suitable version of makeinfo, or re-run configure
1269 with the '--without-makeinfo' option to build without the manuals.] )
1272 AC_SUBST([MAKEINFO])
1273 AC_SUBST(HAVE_MAKEINFO)
1275 if test $opsys = mingw32; then
1276 DOCMISC_W32=efaq-w32
1280 AC_SUBST(DOCMISC_W32)
1282 dnl Add our options to ac_link now, after it is set up.
1284 if test x$GCC = xyes; then
1285 test "x$GCC_LINK_TEST_OPTIONS" != x && \
1286 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1288 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
1289 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1292 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
1293 dnl If we can link with the flag, it shouldn't do any harm anyhow.
1294 dnl Treat GCC specially since it just gives a non-fatal 'unrecognized option'
1295 dnl if not built to support GNU ld.
1297 dnl For a long time, -znocombreloc was added to LDFLAGS rather than
1298 dnl LD_SWITCH_SYSTEM_TEMACS. That is:
1299 dnl * inappropriate, as LDFLAGS is a user option but this is essential.
1300 dnl Eg "make LDFLAGS=... all" could run into problems,
1301 dnl http://bugs.debian.org/684788
1302 dnl * unnecessary, since temacs is the only thing that actually needs it.
1303 dnl Indeed this is where it was originally, prior to:
1304 dnl http://lists.gnu.org/archive/html/emacs-pretest-bug/2004-03/msg00170.html
1305 late_LDFLAGS="$LDFLAGS"
1306 if test x$GCC = xyes; then
1307 LDFLAGS_NOCOMBRELOC="-Wl,-znocombreloc"
1309 LDFLAGS_NOCOMBRELOC="-znocombreloc"
1312 LDFLAGS="$LDFLAGS $LDFLAGS_NOCOMBRELOC"
1314 AC_MSG_CHECKING([for -znocombreloc])
1315 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1316 [AC_MSG_RESULT(yes)],
1317 LDFLAGS_NOCOMBRELOC=
1318 [AC_MSG_RESULT(no)])
1320 LDFLAGS="$late_LDFLAGS"
1322 AC_CACHE_CHECK([whether addresses are sanitized],
1323 [emacs_cv_sanitize_address],
1326 [[#ifndef __has_feature
1327 #define __has_feature(f) 0
1329 #if defined __SANITIZE_ADDRESS__ || __has_feature (address_sanitizer)
1331 error "Addresses are not sanitized.";
1334 [emacs_cv_sanitize_address=yes],
1335 [emacs_cv_sanitize_address=no])])
1337 dnl The function dump-emacs will not be defined and temacs will do
1338 dnl (load "loadup") automatically unless told otherwise.
1339 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
1341 nacl) CANNOT_DUMP=yes ;;
1344 if test "$CANNOT_DUMP" = "yes"; then
1345 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1346 elif test "$emacs_cv_sanitize_address" = yes; then
1347 AC_MSG_WARN([[Addresses are sanitized; suggest CANNOT_DUMP=yes]])
1350 AC_SUBST(CANNOT_DUMP)
1353 UNEXEC_OBJ=unexelf.o
1355 # MSDOS uses unexcoff.o
1357 UNEXEC_OBJ=unexaix.o
1363 UNEXEC_OBJ=unexmacosx.o
1366 UNEXEC_OBJ=unexhp9k800.o
1369 UNEXEC_OBJ=unexw32.o
1372 # Use the Solaris dldump() function, called from unexsol.c, to dump
1373 # emacs, instead of the generic ELF dump code found in unexelf.c.
1374 # The resulting binary has a complete symbol table, and is better
1375 # for debugging and other observability tools (debuggers, pstack, etc).
1377 # If you encounter a problem using dldump(), please consider sending
1378 # a message to the OpenSolaris tools-linking mailing list:
1379 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1381 # It is likely that dldump() works with older Solaris too, but this has
1382 # not been tested, so for now this change is for Solaris 10 or newer.
1383 UNEXEC_OBJ=unexsol.o
1386 test "$CANNOT_DUMP" = "yes" && UNEXEC_OBJ=
1391 ## Let 'ld' find image libs and similar things in /usr/local/lib.
1392 ## The system compiler, GCC, has apparently been modified to not
1393 ## look there, contrary to what a stock GCC would do.
1394 ### It's not our place to do this. See bug#10313#17.
1395 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1400 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1401 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1405 ### It's not our place to do this. See bug#10313#17.
1406 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1411 ## Han Boetes <han@boetes.org> says this is necessary,
1412 ## otherwise Emacs dumps core on elf systems.
1413 LD_SWITCH_SYSTEM="-Z"
1416 AC_SUBST(LD_SWITCH_SYSTEM)
1418 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1420 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1421 ## which has not been defined yet. When this was handled with cpp,
1422 ## it was expanded to null when configure sourced the s/*.h file.
1423 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1424 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1425 ## (or somesuch), but because it is supposed to go at the _front_
1426 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1427 ## Compare with the gnu-linux case below, which added to the end
1428 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1429 ## LD_SWITCH_SYSTEM_TEMACS.
1432 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1439 AC_CHECK_DECL([__ELF__])
1440 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1441 ## With ELF, make sure that all common symbols get allocated to in the
1442 ## data section. Otherwise, the dump of temacs may miss variables in
1443 ## the shared library that have been initialized. For example, with
1444 ## GNU libc, __malloc_initialized would normally be resolved to the
1445 ## shared library's .bss section, which is fatal.
1446 if test "x$GCC" = "xyes"; then
1447 C_SWITCH_MACHINE="-fno-common"
1449 AC_MSG_ERROR([Non-GCC compilers are not supported.])
1452 dnl This was the unexalpha.c case. Removed in 24.1, 2010-07-24,
1453 dnl albeit under the mistaken assumption that said file
1454 dnl was no longer used.
1455 AC_MSG_ERROR([Non-ELF systems are not supported since Emacs 24.1.])
1459 AC_SUBST(C_SWITCH_MACHINE)
1461 AC_SUBST(UNEXEC_OBJ)
1464 ## Some programs in src produce warnings saying certain subprograms
1465 ## are too complex and need a MAXMEM value greater than 2000 for
1466 ## additional optimization. --nils@exp-math.uni-essen.de
1467 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1468 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1469 if test "$opsys" = "mingw32"; then
1470 case "$canonical" in
1471 x86_64-*-mingw*) C_SWITCH_SYSTEM="-mtune=generic" ;;
1472 *) C_SWITCH_SYSTEM="-mtune=pentium4" ;;
1475 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1476 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1477 AC_SUBST(C_SWITCH_SYSTEM)
1482 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1483 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1485 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1487 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1489 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1491 ## Motif needs -lgen.
1492 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1495 AC_SUBST(LIBS_SYSTEM)
1497 ### Make sure subsequent tests use flags consistent with the build flags.
1499 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1500 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1502 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1505 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C99 or better.
1506 AC_DEFUN([AC_TYPE_SIZE_T])
1507 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1508 AC_DEFUN([AC_TYPE_UID_T])
1510 # sqrt and other floating-point functions such as fmod and frexp
1511 # are found in -lm on many systems.
1513 AC_SEARCH_LIBS([sqrt], [m])
1514 if test "X$LIBS" = "X$OLD_LIBS"; then
1517 LIB_MATH=$ac_cv_search_sqrt
1521 dnl Current possibilities handled by sed (aix4-2 -> aix,
1522 dnl gnu-linux -> gnu/linux, etc.):
1523 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux.
1524 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1525 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1532 ## Adding -lm confuses the dynamic linker, so omit it.
1535 freebsd | dragonfly )
1536 SYSTEM_TYPE=berkeley-unix
1538 gnu-linux | gnu-kfreebsd )
1540 hpux10-20 | hpux11 )
1544 SYSTEM_TYPE=windows-nt
1546 dnl NB this may be adjusted below.
1548 SYSTEM_TYPE=berkeley-unix
1552 SYSTEM_TYPE=usg-unix-v
1558 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1559 [The type of system you are compiling for; sets 'system-type'.])
1560 AC_SUBST([SYSTEM_TYPE])
1563 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1564 pre_PKG_CONFIG_LIBS=$LIBS
1566 PKG_PROG_PKG_CONFIG(0.9.0)
1568 dnl EMACS_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4)
1569 dnl acts like PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4,
1570 dnl HAVE_GSTUFF=yes, HAVE_GSTUFF=no) -- see pkg-config man page --
1571 dnl except that it postprocesses CFLAGS as needed for --enable-gcc-warnings.
1572 dnl EMACS_CHECK_MODULES accepts optional 3rd and 4th arguments that
1573 dnl can take the place of the default HAVE_GSTUFF=yes and HAVE_GSTUFF=no
1575 AC_DEFUN([EMACS_CHECK_MODULES],
1576 [PKG_CHECK_MODULES([$1], [$2],
1577 [$1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1578 m4_default([$3], [HAVE_$1=yes])],
1579 [m4_default([$4], [HAVE_$1=no])])])
1582 if test "${with_sound}" != "no"; then
1583 # Sound support for GNU/Linux, the free BSDs, MinGW, and Cygwin.
1584 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h mmsystem.h],
1585 have_sound_header=yes, [], [
1587 #define WIN32_LEAN_AND_MEAN
1588 #include <windows.h>
1591 test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
1592 AC_MSG_ERROR([OSS sound support requested but not found.])
1594 if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
1595 # Emulation library used on NetBSD.
1596 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1597 test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
1598 AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
1599 dnl FIXME? If we did find ossaudio, should we set with_sound=bsd-ossaudio?
1600 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1604 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1606 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1607 EMACS_CHECK_MODULES([ALSA], [$ALSA_MODULES])
1608 if test $HAVE_ALSA = yes; then
1609 SAVE_CFLAGS="$CFLAGS"
1611 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1612 LIBS="$ALSA_LIBS $LIBS"
1613 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1614 emacs_alsa_normal=yes,
1615 emacs_alsa_normal=no)
1616 if test "$emacs_alsa_normal" != yes; then
1617 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1618 [[snd_lib_error_set_handler (0);]])],
1619 emacs_alsa_subdir=yes,
1620 emacs_alsa_subdir=no)
1621 if test "$emacs_alsa_subdir" != yes; then
1622 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1624 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1627 CFLAGS="$SAVE_CFLAGS"
1629 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1630 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1631 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1632 elif test "${with_sound}" = "alsa"; then
1633 AC_MSG_ERROR([ALSA sound support requested but not found.])
1635 fi dnl with_sound = alsa|yes
1637 dnl Define HAVE_SOUND if we have sound support. We know it works and
1638 dnl compiles only on the specified platforms. For others, it
1639 dnl probably doesn't make sense to try.
1640 dnl FIXME So surely we should bypass this whole section if not using
1641 dnl one of these platforms?
1642 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1644 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1645 dnl Adjust the --with-sound help text if you change this.
1646 gnu-linux|freebsd|netbsd|mingw32|cygwin)
1647 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1653 AC_SUBST(CFLAGS_SOUND)
1656 dnl checks for header files
1657 AC_CHECK_HEADERS_ONCE(
1664 sys/utsname.h pwd.h utmp.h util.h sys/prctl.h)
1666 AC_CACHE_CHECK([for ADDR_NO_RANDOMIZE],
1667 [emacs_cv_personality_addr_no_randomize],
1669 [AC_LANG_PROGRAM([[#include <sys/personality.h>]],
1670 [[personality (personality (0xffffffff)
1671 | ADDR_NO_RANDOMIZE)]])],
1672 [emacs_cv_personality_addr_no_randomize=yes],
1673 [emacs_cv_personality_addr_no_randomize=no])])
1674 if test $emacs_cv_personality_addr_no_randomize = yes; then
1675 AC_DEFINE([HAVE_PERSONALITY_ADDR_NO_RANDOMIZE], [1],
1676 [Define to 1 if personality flag ADDR_NO_RANDOMIZE exists.])
1679 # Note that Solaris has sys/sysinfo.h which defines struct
1680 # sysinfo as well. To make sure that we're using GNU/Linux
1681 # sysinfo, we explicitly set one of its fields.
1682 if test "$ac_cv_header_sys_sysinfo_h" = yes; then
1683 AC_MSG_CHECKING([if Linux sysinfo may be used])
1684 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1685 [[struct sysinfo si;
1688 emacs_cv_linux_sysinfo=yes, emacs_cv_linux_sysinfo=no)
1689 AC_MSG_RESULT($emacs_cv_linux_sysinfo)
1690 if test $emacs_cv_linux_sysinfo = yes; then
1691 AC_DEFINE([HAVE_LINUX_SYSINFO], 1, [Define to 1 if you have Linux sysinfo function.])
1692 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1693 [[struct sysinfo si; return si.mem_unit]])],
1694 AC_DEFINE(LINUX_SYSINFO_UNIT, 1,
1695 [Define to 1 if Linux sysinfo sizes are in multiples of mem_unit bytes.]))
1699 dnl On Solaris 8 there's a compilation warning for term.h because
1700 dnl it doesn't define 'bool'.
1701 AC_CHECK_HEADERS(term.h, , , -)
1703 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1705 if test $ac_cv_have_decl_sys_siglist != yes; then
1706 # For Tru64, at least:
1707 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1712 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1713 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1714 #if HAVE_SYS_SOCKET_H
1715 #include <sys/socket.h>
1717 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1718 #if HAVE_SYS_SOCKET_H
1719 #include <sys/socket.h>
1721 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1722 #if HAVE_SYS_SOCKET_H
1723 #include <sys/socket.h>
1726 dnl checks for structure members
1727 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1728 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1729 struct ifreq.ifr_addr,
1730 struct ifreq.ifr_addr.sa_len], , ,
1731 [AC_INCLUDES_DEFAULT
1732 #if HAVE_SYS_SOCKET_H
1733 #include <sys/socket.h>
1739 dnl Check for endianness.
1740 dnl AC_C_BIGENDIAN is done by gnulib.
1742 dnl check for Make feature
1745 AUTODEPEND_PARENTS='lib src'
1746 dnl check if we have GCC and autodepend is on.
1747 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1748 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1749 SAVE_CFLAGS="$CFLAGS"
1750 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1751 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1752 CFLAGS="$SAVE_CFLAGS"
1753 test -f deps.d || ac_enable_autodepend=no
1755 AC_MSG_RESULT([$ac_enable_autodepend])
1756 if test $ac_enable_autodepend = yes; then
1760 AC_SUBST(AUTO_DEPEND)
1762 dnl checks for operating system services
1763 AC_SYS_LONG_FILE_NAMES
1765 #### Choose a window system.
1767 ## We leave window_system equal to none if
1768 ## we end up building without one. Any new window system should
1769 ## set window_system to an appropriate value and add objects to
1770 ## window-system-specific substs.
1774 if test "$no_x" != yes; then
1778 LD_SWITCH_X_SITE_RPATH=
1779 if test "${x_libraries}" != NONE; then
1780 if test -n "${x_libraries}"; then
1781 LD_SWITCH_X_SITE=-L`AS_ECHO(["$x_libraries"]) | sed -e 's/:/ -L/g'`
1782 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`
1783 AS_ECHO(["$x_libraries"]) | sed -e 's/:/ -Wl,-rpath,/g'
1786 x_default_search_path=""
1787 x_search_path=${x_libraries}
1788 if test -z "${x_search_path}"; then
1789 x_search_path=/usr/lib
1791 for x_library in `AS_ECHO(["$x_search_path:"]) | \
1792 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1794 ${x_library}/X11/%L/%T/%N%C%S:\
1795 ${x_library}/X11/%l/%T/%N%C%S:\
1796 ${x_library}/X11/%T/%N%C%S:\
1797 ${x_library}/X11/%L/%T/%N%S:\
1798 ${x_library}/X11/%l/%T/%N%S:\
1799 ${x_library}/X11/%T/%N%S"
1800 if test x"${x_default_search_path}" = x; then
1801 x_default_search_path=${x_search_path}
1803 x_default_search_path="${x_search_path}:${x_default_search_path}"
1807 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1809 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1810 C_SWITCH_X_SITE=$isystem`AS_ECHO(["$x_includes"]) | sed -e "s/:/ $isystem/g"`
1813 if test x"${x_includes}" = x; then
1814 bitmapdir=/usr/include/X11/bitmaps
1816 # accumulate include directories that have X11 bitmap subdirectories
1818 for bmd in `AS_ECHO(["$x_includes"]) | sed -e 's/:/ /g'`; do
1819 if test -d "${bmd}/X11/bitmaps"; then
1820 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1822 if test -d "${bmd}/bitmaps"; then
1823 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1826 bitmapdir=${bmd_acc#:}
1829 test "${with_ns}" = maybe && test "${opsys}" != darwin && with_ns=no
1831 NS_GNUSTEP_CONFIG=no
1834 tmp_CPPFLAGS="$CPPFLAGS"
1835 tmp_CFLAGS="$CFLAGS"
1836 CPPFLAGS="$CPPFLAGS -x objective-c"
1837 CFLAGS="$CFLAGS -x objective-c"
1840 if test "${with_ns}" != no; then
1841 if test "${opsys}" = darwin; then
1843 ns_appdir=`pwd`/nextstep/Emacs.app
1844 ns_appbindir=${ns_appdir}/Contents/MacOS
1845 ns_appresdir=${ns_appdir}/Contents/Resources
1846 ns_appsrc=Cocoa/Emacs.base
1847 ns_fontfile=macfont.o
1848 elif flags=$( (gnustep-config --objc-flags) 2>/dev/null); then
1850 NS_GNUSTEP_CONFIG=yes
1851 GNU_OBJC_CFLAGS=$flags
1852 LIBS_GNUSTEP=$(gnustep-config --gui-libs) || exit
1853 elif test -f $GNUSTEP_CONFIG_FILE; then
1855 dnl FIXME sourcing this several times in subshells seems inefficient.
1856 GNUSTEP_SYSTEM_HEADERS=$(
1857 . $GNUSTEP_CONFIG_FILE
1858 AS_ECHO(["$GNUSTEP_SYSTEM_HEADERS"])
1860 GNUSTEP_SYSTEM_LIBRARIES=$(
1861 . $GNUSTEP_CONFIG_FILE
1862 AS_ECHO(["$GNUSTEP_SYSTEM_LIBRARIES"])
1864 dnl I seemed to need these as well with GNUstep-startup 0.25.
1865 GNUSTEP_LOCAL_HEADERS=$(
1866 . $GNUSTEP_CONFIG_FILE
1867 AS_ECHO(["$GNUSTEP_LOCAL_HEADERS"])
1869 GNUSTEP_LOCAL_LIBRARIES=$(
1870 . $GNUSTEP_CONFIG_FILE
1871 AS_ECHO(["$GNUSTEP_LOCAL_LIBRARIES"])
1873 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1874 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1875 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1876 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1877 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1878 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1879 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1880 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1881 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1882 dnl If they had chosen to either define it or not, we could have
1883 dnl just used AC_CHECK_DECL here.
1884 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1885 emacs_cv_objc_exceptions,
1886 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1887 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1891 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1892 if test $emacs_cv_objc_exceptions = yes; then
1893 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1894 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1895 [Define if GNUstep uses ObjC exceptions.])
1896 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1899 if test $NS_IMPL_GNUSTEP = yes; then
1900 ns_appdir=`pwd`/nextstep/Emacs.app
1901 ns_appbindir=${ns_appdir}
1902 ns_appresdir=${ns_appdir}/Resources
1903 ns_appsrc=GNUstep/Emacs.base
1904 ns_fontfile=nsfont.o
1907 dnl This is only used while we test the NS headers, it gets reset below.
1908 CPPFLAGS="$CPPFLAGS $GNU_OBJC_CFLAGS"
1909 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1911 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1912 [AC_MSG_ERROR([The include files (AppKit/AppKit.h etc) that
1913 are required for a Nextstep build are missing or cannot be compiled.
1914 Either fix this, or re-configure with the option '--without-ns'.])])
1917 if test "${NS_IMPL_COCOA}" = "yes"; then
1918 AC_MSG_CHECKING([for Mac OS X 10.6 or newer])
1919 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1921 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1922 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1060
1925 error "Mac OS X 10.6 or newer required";
1929 ns_osx_have_106=yes,
1931 AC_MSG_RESULT([$ns_osx_have_106])
1933 if test $ns_osx_have_106 = no; then
1934 AC_MSG_ERROR([Mac OS X 10.6 or newer is required]);
1939 AC_SUBST(LIBS_GNUSTEP)
1941 INSTALL_ARCH_INDEP_EXTRA=install-etc
1942 ns_self_contained=no
1945 if test "${HAVE_NS}" = yes; then
1946 if test "$with_toolkit_scroll_bars" = "no"; then
1947 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1950 window_system=nextstep
1951 # set up packaging dirs
1952 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1953 ns_self_contained=yes
1954 prefix=${ns_appresdir}
1955 exec_prefix=${ns_appbindir}
1956 dnl This one isn't really used, only archlibdir is.
1957 libexecdir="\${ns_appbindir}/libexec"
1958 archlibdir="\${ns_appbindir}/libexec"
1959 etcdocdir="\${ns_appresdir}/etc"
1960 etcdir="\${ns_appresdir}/etc"
1961 dnl FIXME maybe set datarootdir instead.
1962 dnl That would also get applications, icons, man.
1963 infodir="\${ns_appresdir}/info"
1964 mandir="\${ns_appresdir}/man"
1965 lispdir="\${ns_appresdir}/lisp"
1966 test "$locallisppathset" = no && locallisppath=""
1967 INSTALL_ARCH_INDEP_EXTRA=
1970 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o $ns_fontfile"
1972 CFLAGS="$tmp_CFLAGS"
1973 CPPFLAGS="$tmp_CPPFLAGS"
1974 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1975 AC_SUBST(ns_self_contained)
1977 AC_SUBST(NS_OBJC_OBJ)
1987 if test "${with_w32}" != no; then
1990 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1991 [AC_MSG_ERROR(['--with-w32' was specified, but windows.h
1992 cannot be found.])])
1995 ## Using --with-w32 with MinGW is a no-op, but we allow it.
1998 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
2003 if test "${opsys}" = "mingw32"; then
2004 AC_MSG_CHECKING([whether Windows API headers are recent enough])
2005 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2006 #include <windows.h>
2007 #include <usp10.h>]],
2008 [[PIMAGE_NT_HEADERS pHeader;
2009 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
2010 [emacs_cv_w32api=yes
2013 AC_MSG_RESULT($emacs_cv_w32api)
2014 if test "${emacs_cv_w32api}" = "no"; then
2015 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
2026 if test "${HAVE_W32}" = "yes"; then
2027 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
2028 if test "$with_toolkit_scroll_bars" = "no"; then
2029 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for w32 build.])
2031 AC_CHECK_TOOL(WINDRES, [windres],
2032 [AC_MSG_ERROR([No resource compiler found.])])
2033 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
2034 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
2035 EMACSRES="emacs.res"
2036 case "$canonical" in
2037 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
2038 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
2040 dnl Construct something of the form "24,4,0,0" with 4 components.
2041 comma_version=`echo "${PACKAGE_VERSION}.0.0" | sed -e 's/\./,/g' -e 's/^\([[^,]]*,[[^,]]*,[[^,]]*,[[^,]]*\).*/\1/'`
2043 comma_space_version=`echo "$comma_version" | sed 's/,/, /g'`
2044 AC_SUBST(comma_version)
2045 AC_SUBST(comma_space_version)
2046 AC_CONFIG_FILES([nt/emacs.rc nt/emacsclient.rc])
2047 if test "${opsys}" = "cygwin"; then
2048 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
2049 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
2050 # Tell the linker that emacs.res is an object (which we compile from
2051 # the rc file), not a linker script.
2052 W32_RES_LINK="-Wl,emacs.res"
2054 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
2055 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
2056 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
2057 W32_RES_LINK="\$(EMACSRES)"
2058 CLIENTRES="emacsclient.res"
2059 CLIENTW="emacsclientw\$(EXEEXT)"
2060 FIRSTFILE_OBJ=firstfile.o
2063 LIBS_ECLIENT="-lcomctl32"
2064 LIB_WSOCK32="-lwsock32"
2065 NTLIB="ntlib.$ac_objext"
2066 XARGS_LIMIT="-s 10000"
2072 AC_SUBST(EMACS_MANIFEST)
2075 AC_SUBST(W32_RES_LINK)
2076 AC_SUBST(FIRSTFILE_OBJ)
2079 AC_SUBST(LIBS_ECLIENT)
2080 AC_SUBST(LIB_WSOCK32)
2082 AC_SUBST(XARGS_LIMIT)
2084 if test "${HAVE_W32}" = "yes"; then
2089 ## $window_system is now set to the window system we will
2097 case "${window_system}" in
2102 case "${with_x_toolkit}" in
2103 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
2104 motif ) USE_X_TOOLKIT=MOTIF ;;
2106 term_header=gtkutil.h
2107 dnl Don't set this for GTK. A lot of tests below assumes Xt when
2108 dnl USE_X_TOOLKIT is set.
2109 USE_X_TOOLKIT=none ;;
2110 gtk2 ) with_gtk2=yes
2111 term_header=gtkutil.h
2112 USE_X_TOOLKIT=none ;;
2113 gtk3 ) with_gtk3=yes
2114 term_header=gtkutil.h
2115 USE_X_TOOLKIT=none ;;
2116 no ) USE_X_TOOLKIT=none ;;
2117 dnl If user did not say whether to use a toolkit, make this decision later:
2118 dnl use the toolkit if we have gtk, or X11R5 or newer.
2119 * ) USE_X_TOOLKIT=maybe ;;
2123 term_header=nsterm.h
2126 term_header=w32term.h
2130 if test "$window_system" = none && test "X$with_x" != "Xno"; then
2131 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
2132 if test "$HAVE_XSERVER" = true ||
2133 test -n "$DISPLAY" ||
2135 for emacs_libX11 in /usr/lib/libX11.*; do break; done
2136 test "$emacs_libX11" != '/usr/lib/libX11.*'
2139 AC_MSG_ERROR([You seem to be running X, but no X development libraries
2140 were found. You should install the relevant development files for X
2141 and for the toolkit you want, such as Gtk+ or Motif. Also make
2142 sure you have development files for image handling, i.e.
2143 tiff, gif, jpeg, png and xpm.
2144 If you are sure you want Emacs compiled without X window support, pass
2150 # Does the opsystem file prohibit the use of the GNU malloc?
2151 # Assume not, until told otherwise.
2155 [whether malloc is Doug Lea style],
2156 [emacs_cv_var_doug_lea_malloc],
2157 [emacs_cv_var_doug_lea_malloc=no
2158 dnl Hooks do not work with address sanitization.
2159 if test "$emacs_cv_sanitize_address" != yes; then
2162 [[#include <malloc.h>
2163 static void hook (void) {}]],
2164 [[malloc_set_state (malloc_get_state ());
2165 __after_morecore_hook = hook;
2166 __malloc_initialize_hook = hook;]])],
2167 [emacs_cv_var_doug_lea_malloc=yes])
2169 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
2174 test "$CANNOT_DUMP" = yes ||
2176 ## darwin ld insists on the use of malloc routines in the System framework.
2177 darwin | mingw32 | nacl | sol2-10) ;;
2178 cygwin) hybrid_malloc=yes
2180 *) test "$ac_cv_func_sbrk" = yes && system_malloc=$emacs_cv_sanitize_address;;
2183 if test "${system_malloc}" != yes && test "${doug_lea_malloc}" != yes \
2184 && test "${UNEXEC_OBJ}" = unexelf.o; then
2190 if test "${system_malloc}" = "yes"; then
2191 AC_DEFINE([SYSTEM_MALLOC], 1,
2192 [Define to 1 to use the system memory allocator, even if it is not
2196 (The GNU allocators don't work with this system configuration.)"
2198 elif test "$hybrid_malloc" = yes; then
2199 AC_DEFINE(HYBRID_MALLOC, 1,
2200 [Define to use gmalloc before dumping and the system malloc after.])
2203 GNU_MALLOC_reason=" (only before dumping)"
2204 GMALLOC_OBJ=gmalloc.o
2207 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
2208 VMLIMIT_OBJ=vm-limit.o
2210 AC_CHECK_HEADERS([sys/vlimit.h])
2211 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
2214 [[extern char data_start[]; char ch;]],
2215 [[return data_start < &ch;]])],
2216 [emacs_cv_data_start=yes],
2217 [emacs_cv_data_start=no])])
2218 if test $emacs_cv_data_start = yes; then
2219 AC_DEFINE([HAVE_DATA_START], 1,
2220 [Define to 1 if data_start is the address of the start
2221 of the main data segment.])
2224 AC_SUBST([HYBRID_MALLOC])
2225 AC_SUBST(GMALLOC_OBJ)
2226 AC_SUBST(VMLIMIT_OBJ)
2228 if test "$doug_lea_malloc" = "yes" && test "$hybrid_malloc" != yes; then
2229 if test "$GNU_MALLOC" = yes ; then
2231 (Using Doug Lea's new malloc from the GNU C Library.)"
2233 AC_DEFINE(DOUG_LEA_MALLOC, 1,
2234 [Define to 1 if the system memory allocator is Doug Lea style,
2235 with malloc hooks and malloc_set_state.])
2237 ## Use mmap directly for allocating larger buffers.
2238 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
2239 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
2240 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
2242 mingw32|gnu*) REL_ALLOC=no ;;
2246 if test x"${REL_ALLOC}" = x; then
2247 REL_ALLOC=${GNU_MALLOC}
2250 use_mmap_for_buffers=no
2252 mingw32) use_mmap_for_buffers=yes ;;
2256 if test $use_mmap_for_buffers = yes; then
2257 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
2261 LIBS="$LIBS_SYSTEM $LIBS"
2263 dnl FIXME replace main with a function we actually want from this library.
2264 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
2266 dnl Check for the POSIX thread library.
2268 AC_CHECK_HEADERS_ONCE(pthread.h)
2269 if test "$ac_cv_header_pthread_h" && test "$opsys" != "mingw32"; then
2270 AC_CACHE_CHECK([for pthread library],
2271 [emacs_cv_pthread_lib],
2272 [emacs_cv_pthread_lib=no
2274 for emacs_pthread_lib in 'none needed' -lpthread; do
2275 case $emacs_pthread_lib in
2276 -*) LIBS="$OLD_LIBS $emacs_pthread_lib";;
2280 [[#include <pthread.h>
2282 sigset_t old_mask, new_mask;
2283 void noop (void) {}]],
2284 [[pthread_t th = pthread_self ();
2286 status += pthread_create (&th, 0, 0, 0);
2287 status += pthread_sigmask (SIG_BLOCK, &new_mask, &old_mask);
2288 status += pthread_kill (th, 0);
2289 #if ! (defined SYSTEM_MALLOC || defined HYBRID_MALLOC \
2290 || defined DOUG_LEA_MALLOC)
2291 /* Test for pthread_atfork only if gmalloc uses it,
2292 as older-style hosts like MirBSD 10 lack it. */
2293 status += pthread_atfork (noop, noop, noop);
2296 [emacs_cv_pthread_lib=$emacs_pthread_lib])
2298 if test "$emacs_cv_pthread_lib" != no; then
2302 if test "$emacs_cv_pthread_lib" != no; then
2303 AC_DEFINE([HAVE_PTHREAD], 1, [Define to 1 if you have POSIX threads.])
2304 case $emacs_cv_pthread_lib in
2305 -*) LIB_PTHREAD=$emacs_cv_pthread_lib;;
2307 ac_cv_func_pthread_sigmask=yes
2308 # Some systems optimize for single-threaded programs by default, and
2309 # need special flags to disable these optimizations. For example, the
2310 # definition of 'errno' in <errno.h>.
2313 AC_DEFINE([_REENTRANT], 1,
2314 [Define to 1 if your system requires this in multithreaded code.]);;
2316 AC_DEFINE([_THREAD_SAFE], 1,
2317 [Define to 1 if your system requires this in multithreaded code.]);;
2321 AC_SUBST([LIB_PTHREAD])
2323 AC_MSG_CHECKING([for thread support])
2325 if test "$with_threads" = yes; then
2326 if test "$emacs_cv_pthread_lib" != no; then
2327 AC_DEFINE(THREADS_ENABLED, 1,
2328 [Define to 1 if you want elisp thread support.])
2330 elif test "${opsys}" = "mingw32"; then
2331 dnl MinGW can do native Windows threads even without pthreads
2332 AC_DEFINE(THREADS_ENABLED, 1,
2333 [Define to 1 if you want elisp thread support.])
2337 AC_MSG_RESULT([$threads_enabled])
2339 dnl Check for need for bigtoc support on IBM AIX
2343 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
2345 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
2346 *) gdb_cv_bigtoc=-bbigtoc ;;
2349 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
2350 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
2355 # Change CFLAGS, CPPFLAGS, and LIBS temporarily so that C_SWITCH_X_SITE
2356 # is for the tests that follow. We set them back later on.
2358 REAL_CFLAGS="$CFLAGS"
2359 REAL_CPPFLAGS="$CPPFLAGS"
2362 if test "${HAVE_X11}" = "yes"; then
2363 DEFS="$C_SWITCH_X_SITE $DEFS"
2364 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2366 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2367 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2369 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2370 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2371 # but it's more convenient here to set LD_RUN_PATH since this
2372 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2373 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2374 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2378 if test "${opsys}" = "gnu-linux"; then
2379 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2380 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2381 [[XOpenDisplay ("foo");]])],
2382 [xgnu_linux_first_failure=no],
2383 [xgnu_linux_first_failure=yes])
2384 if test "${xgnu_linux_first_failure}" = "yes"; then
2385 OLD_CPPFLAGS="$CPPFLAGS"
2387 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2388 LIBS="$LIBS -b i486-linuxaout"
2389 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2390 [[XOpenDisplay ("foo");]])],
2391 [xgnu_linux_second_failure=no],
2392 [xgnu_linux_second_failure=yes])
2393 if test "${xgnu_linux_second_failure}" = "yes"; then
2394 # If we get the same failure with -b, there is no use adding -b.
2395 # So leave it out. This plays safe.
2398 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2399 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2402 CPPFLAGS=$OLD_CPPFLAGS
2409 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2410 # header files included from there.
2411 AC_MSG_CHECKING(for Xkb)
2412 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2413 #include <X11/XKBlib.h>]],
2414 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2415 emacs_xkb=yes, emacs_xkb=no)
2416 AC_MSG_RESULT($emacs_xkb)
2417 if test $emacs_xkb = yes; then
2418 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2421 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2422 XScreenNumberOfScreen)
2425 if test "${window_system}" = "x11"; then
2426 AC_MSG_CHECKING(X11 version 6)
2427 AC_CACHE_VAL(emacs_cv_x11_version_6,
2428 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2429 [[#if XlibSpecificationRelease < 6
2432 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2433 if test $emacs_cv_x11_version_6 = yes; then
2434 AC_MSG_RESULT(6 or newer)
2435 AC_DEFINE(HAVE_X11R6, 1,
2436 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2437 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2438 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2442 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2443 [Define if you have usable X11R6-style XIM support.])
2447 AC_MSG_RESULT(before 6)
2452 ### Use -lrsvg-2 if available, unless '--with-rsvg=no' is specified.
2454 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2455 if test "${with_rsvg}" != "no"; then
2456 RSVG_REQUIRED=2.11.0
2457 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2459 EMACS_CHECK_MODULES([RSVG], [$RSVG_MODULE])
2460 AC_SUBST(RSVG_CFLAGS)
2463 if test $HAVE_RSVG = yes; then
2464 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2465 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2466 # Windows loads librsvg dynamically
2467 if test "${opsys}" = "mingw32"; then
2475 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${HAVE_W32}" = "yes"; then
2476 if test "${with_imagemagick}" != "no"; then
2477 ## 6.3.5 is the earliest version known to work; see Bug#17339.
2478 ## 6.8.2 makes Emacs crash; see Bug#13867.
2479 IMAGEMAGICK_MODULE="Wand >= 6.3.5 Wand != 6.8.2"
2480 EMACS_CHECK_MODULES([IMAGEMAGICK], [$IMAGEMAGICK_MODULE])
2481 AC_SUBST(IMAGEMAGICK_CFLAGS)
2482 AC_SUBST(IMAGEMAGICK_LIBS)
2484 if test $HAVE_IMAGEMAGICK = yes; then
2485 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2488 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2489 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2490 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers MagickAutoOrientImage)
2497 AC_CHECK_LIB(anl, getaddrinfo_a, HAVE_GETADDRINFO_A=yes)
2498 if test "${HAVE_GETADDRINFO_A}" = "yes"; then
2499 AC_DEFINE(HAVE_GETADDRINFO_A, 1,
2500 [Define to 1 if you have getaddrinfo_a for asynchronous DNS resolution.])
2501 GETADDRINFO_A_LIBS="-lanl"
2502 AC_SUBST(GETADDRINFO_A_LIBS)
2507 gtk_term_header=$term_header
2510 if test "${opsys}" != "mingw32"; then
2511 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2514 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2516 dnl Checks for libraries.
2517 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2518 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2519 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2520 AC_MSG_ERROR($GTK_PKG_ERRORS)
2522 if test "$pkg_check_gtk" = "yes"; then
2523 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2524 GTK_OBJ=emacsgtkfixed.o
2525 gtk_term_header=gtkutil.h
2526 USE_GTK_TOOLKIT="GTK3"
2527 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2528 AC_DEFINE([GDK_DISABLE_DEPRECATION_WARNINGS], [1],
2529 [Define to 1 to disable GTK+/GDK deprecation warnings.])
2530 AC_DEFINE([GLIB_DISABLE_DEPRECATION_WARNINGS], [1],
2531 [Define to 1 to disable Glib deprecation warnings.])
2535 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2539 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2542 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2544 dnl Checks for libraries.
2545 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2546 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2547 if test "$pkg_check_gtk" = "no" &&
2548 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2550 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2552 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2559 if test x"$pkg_check_gtk" = xyes; then
2562 CFLAGS="$CFLAGS $GTK_CFLAGS"
2563 LIBS="$GTK_LIBS $LIBS"
2564 dnl Try to compile a simple GTK program.
2565 AC_MSG_CHECKING([whether GTK compiles])
2569 [[/* Check the Gtk and Glib APIs. */
2570 #include <gtk/gtk.h>
2571 #include <glib-object.h>
2573 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2577 GtkSettings *gs = 0;
2578 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2579 strict C prohibits this. Use gtk_main_iteration to test that the
2580 libraries are there. */
2581 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2582 0, 0, 0, G_CALLBACK (callback), 0))
2583 gtk_main_iteration ();
2586 AC_MSG_RESULT([$GTK_COMPILES])
2587 if test "${GTK_COMPILES}" != "yes"; then
2589 if test "$USE_X_TOOLKIT" != "maybe"; then
2590 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2593 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2595 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2596 GTK_OBJ="gtkutil.o $GTK_OBJ"
2597 term_header=$gtk_term_header
2599 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2600 closing open displays. This is no problem if you just use
2601 one display, but if you use more than one and close one of them
2603 See http://bugzilla.gnome.org/show_bug.cgi?id=85715]])
2611 if test "${HAVE_GTK}" = "yes"; then
2613 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2614 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2615 if test "$with_toolkit_scroll_bars" != no; then
2616 with_toolkit_scroll_bars=yes
2619 dnl Check if we have the old file selection dialog declared and
2620 dnl in the link library. In 2.x it may be in the library,
2621 dnl but not declared if deprecated featured has been selected out.
2622 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2623 HAVE_GTK_FILE_SELECTION=no
2624 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2625 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2626 #include <gtk/gtk.h>])
2627 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2628 AC_CHECK_FUNCS(gtk_file_selection_new)
2631 dnl Same as above for gtk_handle_box.
2632 HAVE_GTK_HANDLE_BOX=no
2633 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2634 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2635 #include <gtk/gtk.h>])
2636 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2637 AC_CHECK_FUNCS(gtk_handle_box_new)
2640 dnl Same as above for gtk_tearoff_menu_item.
2641 HAVE_GTK_TEAROFF_MENU_ITEM=no
2642 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2643 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2644 #include <gtk/gtk.h>])
2645 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2646 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2649 dnl Check for functions introduced in 2.14 and later.
2650 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2651 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2652 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2653 gtk_orientable_set_orientation \
2654 gtk_window_set_has_resize_grip)
2656 term_header=gtkutil.h
2660 dnl Enable xwidgets if GTK3 and WebKitGTK+ are available.
2663 if test "$with_xwidgets" != "no"; then
2664 test "$USE_GTK_TOOLKIT" = "GTK3" && test "$window_system" != "none" ||
2665 AC_MSG_ERROR([xwidgets requested but gtk3 not used.])
2667 WEBKIT_REQUIRED=2.12
2668 WEBKIT_MODULES="webkit2gtk-4.0 >= $WEBKIT_REQUIRED"
2669 EMACS_CHECK_MODULES([WEBKIT], [$WEBKIT_MODULES])
2670 HAVE_XWIDGETS=$HAVE_WEBKIT
2671 test $HAVE_XWIDGETS = yes ||
2672 AC_MSG_ERROR([xwidgets requested but WebKitGTK+ not found.])
2674 XWIDGETS_OBJ=xwidget.o
2675 AC_DEFINE([HAVE_XWIDGETS], 1, [Define to 1 if you have xwidgets support.])
2677 AC_SUBST(XWIDGETS_OBJ)
2682 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2683 dnl other platforms.
2686 if test "${with_dbus}" = "yes"; then
2687 EMACS_CHECK_MODULES([DBUS], [dbus-1 >= 1.0])
2688 if test "$HAVE_DBUS" = yes; then
2689 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2690 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2691 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2694 LIBS="$LIBS $DBUS_LIBS"
2695 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2696 dbus_type_is_valid \
2697 dbus_validate_bus_name \
2698 dbus_validate_path \
2699 dbus_validate_interface \
2700 dbus_validate_member)
2705 AC_SUBST(DBUS_CFLAGS)
2709 dnl GSettings has been tested under GNU/Linux only.
2711 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2712 EMACS_CHECK_MODULES([GSETTINGS], [gio-2.0 >= 2.26])
2713 if test "$HAVE_GSETTINGS" = "yes"; then
2715 CFLAGS="$CFLAGS $GSETTINGS_CFLAGS"
2717 LIBS="$LIBS $GSETTINGS_LIBS"
2718 AC_MSG_CHECKING([whether GSettings is in gio])
2721 [[/* Check that gsettings really is present. */
2722 #include <glib-object.h>
2723 #include <gio/gio.h>
2726 GSettings *settings;
2727 GVariant *val = g_settings_get_value (settings, "");
2729 [], HAVE_GSETTINGS=no)
2730 AC_MSG_RESULT([$HAVE_GSETTINGS])
2732 if test "$HAVE_GSETTINGS" = "yes"; then
2733 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2734 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2735 SETTINGS_LIBS="$GSETTINGS_LIBS"
2742 dnl GConf has been tested under GNU/Linux only.
2743 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2745 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2746 EMACS_CHECK_MODULES([GCONF], [gconf-2.0 >= 2.13])
2747 if test "$HAVE_GCONF" = yes; then
2748 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2749 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2750 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2751 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2755 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2756 EMACS_CHECK_MODULES([GOBJECT], [gobject-2.0 >= 2.0])
2757 if test "$HAVE_GOBJECT" = "yes"; then
2758 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2759 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2761 SAVE_CFLAGS="$CFLAGS"
2763 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2764 LIBS="$SETTINGS_LIBS $LIBS"
2765 CFLAGS="$SAVE_CFLAGS"
2768 AC_SUBST(SETTINGS_CFLAGS)
2769 AC_SUBST(SETTINGS_LIBS)
2772 dnl SELinux is available for GNU/Linux only.
2775 if test "${with_selinux}" = "yes"; then
2776 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2777 if test "$HAVE_LIBSELINUX" = yes; then
2778 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2779 LIBSELINUX_LIBS=-lselinux
2782 AC_SUBST(LIBSELINUX_LIBS)
2785 if test "${with_gnutls}" = "yes" ; then
2786 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.12.2],
2787 [HAVE_GNUTLS=yes], [HAVE_GNUTLS=no])
2788 if test "${HAVE_GNUTLS}" = "yes"; then
2789 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2790 EMACS_CHECK_MODULES([LIBGNUTLS3], [gnutls >= 3.0.0],
2791 [AC_DEFINE(HAVE_GNUTLS3, 1, [Define if using GnuTLS v3.])], [])
2794 # Windows loads GnuTLS dynamically
2795 if test "${opsys}" = "mingw32"; then
2800 AC_SUBST(LIBGNUTLS_LIBS)
2801 AC_SUBST(LIBGNUTLS_CFLAGS)
2804 if test "${with_libsystemd}" = "yes" ; then
2805 dnl This code has been tested with libsystemd 222 and later.
2806 dnl FIXME: Find the earliest version number for which Emacs should work,
2807 dnl and change '222' to that number.
2808 EMACS_CHECK_MODULES([LIBSYSTEMD], [libsystemd >= 222],
2809 [HAVE_LIBSYSTEMD=yes], [HAVE_LIBSYSTEMD=no])
2810 if test "${HAVE_LIBSYSTEMD}" = "yes"; then
2811 AC_DEFINE(HAVE_LIBSYSTEMD, 1, [Define if using libsystemd.])
2815 AC_SUBST(LIBSYSTEMD_LIBS)
2816 AC_SUBST(LIBSYSTEMD_CFLAGS)
2821 dnl MS Windows native file monitor is available for mingw32 only.
2822 case $with_file_notification,$opsys in
2824 AC_MSG_ERROR(['--with-file-notification=w32' was specified, but
2825 this is only supported on MS-Windows native and MinGW32 builds.
2826 Consider using gfile instead.])
2828 w32,* | yes,mingw32)
2829 AC_CHECK_HEADER(windows.h)
2830 if test "$ac_cv_header_windows_h" = yes ; then
2831 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2832 NOTIFY_OBJ=w32notify.o
2833 NOTIFY_SUMMARY="yes (w32)"
2837 dnl inotify is available only on GNU/Linux.
2838 case $with_file_notification,$NOTIFY_OBJ in
2840 AC_CHECK_HEADER(sys/inotify.h)
2841 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2842 AC_CHECK_FUNC(inotify_init1)
2843 if test "$ac_cv_func_inotify_init1" = yes; then
2844 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2845 NOTIFY_OBJ=inotify.o
2846 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2851 dnl kqueue is available on BSD-like systems.
2852 case $with_file_notification,$NOTIFY_OBJ in
2854 EMACS_CHECK_MODULES([KQUEUE], [libkqueue])
2855 if test "$HAVE_KQUEUE" = "yes"; then
2856 AC_DEFINE(HAVE_KQUEUE, 1, [Define to 1 to use kqueue.])
2857 CPPFLAGS="$CPPFLAGS -I/usr/include/kqueue"
2858 NOTIFY_CFLAGS=$KQUEUE_CFLAGS
2859 NOTIFY_LIBS=$KQUEUE_LIBS
2861 NOTIFY_SUMMARY="yes -lkqueue"
2863 AC_SEARCH_LIBS(kqueue, [])
2864 if test "$ac_cv_search_kqueue" != no; then
2865 AC_DEFINE(HAVE_KQUEUE, 1, [Define to 1 to use kqueue.])
2867 NOTIFY_SUMMARY="yes (kqueue)"
2872 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2873 dnl has been added in glib 2.24. It has been tested under
2875 case $with_file_notification,$NOTIFY_OBJ in
2877 if test "${HAVE_NS}" = yes; then
2878 AC_MSG_ERROR(['--with-file-notification=gfile' is not supported in NextStep builds.
2879 Consider kqueue instead.])
2881 EMACS_CHECK_MODULES([GFILENOTIFY], [gio-2.0 >= 2.24])
2882 if test "$HAVE_GFILENOTIFY" = "yes"; then
2883 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2884 NOTIFY_CFLAGS=$GFILENOTIFY_CFLAGS
2885 NOTIFY_LIBS=$GFILENOTIFY_LIBS
2886 NOTIFY_OBJ=gfilenotify.o
2887 NOTIFY_SUMMARY="yes -lgio (gfile)"
2892 case $with_file_notification,$NOTIFY_OBJ in
2893 yes,* | no,* | *,?*) ;;
2894 *) AC_MSG_ERROR([File notification '$with_file_notification' requested but requirements not found.]) ;;
2897 if test -n "$NOTIFY_OBJ"; then
2898 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2900 AC_SUBST(NOTIFY_CFLAGS)
2901 AC_SUBST(NOTIFY_LIBS)
2902 AC_SUBST(NOTIFY_OBJ)
2904 dnl Do not put whitespace before the #include statements below.
2905 dnl Older compilers (eg sunos4 cc) choke on it.
2908 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2909 if test "$with_xaw3d" != no; then
2910 AC_CACHE_VAL(emacs_cv_xaw3d,
2911 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2912 #include <X11/Intrinsic.h>
2913 #include <X11/Xaw3d/Simple.h>]],
2915 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2916 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2917 emacs_cv_xaw3d=no)])
2921 if test $emacs_cv_xaw3d = yes; then
2922 AC_MSG_CHECKING(for xaw3d)
2923 AC_MSG_RESULT([yes; using Lucid toolkit])
2927 AC_DEFINE(HAVE_XAW3D, 1,
2928 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2930 AC_MSG_CHECKING(for xaw3d)
2932 AC_MSG_CHECKING(for libXaw)
2933 AC_CACHE_VAL(emacs_cv_xaw,
2934 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2935 #include <X11/Intrinsic.h>
2936 #include <X11/Xaw/Simple.h>]],
2940 if test $emacs_cv_xaw = yes; then
2941 AC_MSG_RESULT([yes; using Lucid toolkit])
2944 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2945 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2947 AC_MSG_ERROR([No X toolkit could be found.
2948 If you are sure you want Emacs compiled without an X toolkit, pass
2950 to configure. Otherwise, install the development libraries for the toolkit
2951 that you want to use (e.g. Gtk+) and re-run configure.])
2956 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2960 if test "${USE_X_TOOLKIT}" != "none"; then
2961 AC_MSG_CHECKING(X11 toolkit version)
2962 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2963 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2964 [[#if XtSpecificationRelease < 6
2967 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2968 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2969 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2970 AC_MSG_RESULT(6 or newer)
2971 AC_DEFINE(HAVE_X11XTR6, 1,
2972 [Define to 1 if you have the X11R6 or newer version of Xt.])
2973 LIBXTR6="-lSM -lICE"
2975 ## Use libw.a along with X11R6 Xt.
2976 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2979 AC_MSG_RESULT(before 6)
2982 dnl If using toolkit, check whether libXmu.a exists.
2983 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2985 if test x$HAVE_X11XTR6 = xyes; then
2986 OTHERLIBS='-lXt -lSM -lICE'
2990 AC_SEARCH_LIBS([XmuConvertStandardSelection], [Xmu], [], [], [$OTHERLIBS])
2991 if test "X$LIBS" != "X$OLDLIBS"; then
2992 LIBXMU=$ac_cv_search_XmuConvertStandardSelection
2995 dnl ac_cv_search_XmuConvertStandardSelection is also referenced below.
3001 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
3002 # OpenMotif may be installed in such a way on some GNU/Linux systems.
3003 if test -d /usr/include/openmotif; then
3004 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
3005 emacs_cv_openmotif=yes
3006 case "$canonical" in
3007 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
3008 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
3011 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
3014 emacs_cv_openmotif=no
3016 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
3017 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
3018 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
3021 Motif version prior to 2.1.
3023 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
3024 if test $emacs_cv_motif_version_2_1 = yes; then
3025 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
3026 if test x$emacs_cv_openmotif = xyes; then
3027 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
3030 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
3031 # We put this in CFLAGS temporarily to precede other -I options
3032 # that might be in CFLAGS temporarily.
3033 # We put this in CPPFLAGS where it precedes the other -I options.
3034 OLD_CPPFLAGS=$CPPFLAGS
3036 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
3037 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
3038 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
3040 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
3041 if test $emacs_cv_lesstif = yes; then
3042 # Make sure this -I option remains in CPPFLAGS after it is set
3043 # back to REAL_CPPFLAGS.
3044 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
3045 # have those other -I options anyway. Ultimately, having this
3046 # directory ultimately in CPPFLAGS will be enough.
3047 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
3048 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
3051 CPPFLAGS=$OLD_CPPFLAGS
3054 AC_CHECK_HEADER([Xm/BulletinB.h], [],
3055 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
3058 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
3059 dnl using Motif or Xaw3d is available, and unless
3060 dnl --with-toolkit-scroll-bars=no was specified.
3062 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
3063 [Define to 1 if we should use toolkit scroll bars.])dnl
3064 USE_TOOLKIT_SCROLL_BARS=no
3065 if test "${with_toolkit_scroll_bars}" != "no"; then
3066 if test "${USE_X_TOOLKIT}" != "none"; then
3067 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
3068 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3070 USE_TOOLKIT_SCROLL_BARS=yes
3071 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
3072 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3073 USE_TOOLKIT_SCROLL_BARS=yes
3075 elif test "${HAVE_GTK}" = "yes"; then
3076 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3077 USE_TOOLKIT_SCROLL_BARS=yes
3078 elif test "${HAVE_NS}" = "yes"; then
3079 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3080 USE_TOOLKIT_SCROLL_BARS=yes
3081 elif test "${HAVE_W32}" = "yes"; then
3082 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3083 USE_TOOLKIT_SCROLL_BARS=yes
3087 dnl See if XIM is available.
3088 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
3089 #include <X11/Xlib.h>
3090 #include <X11/Xresource.h>]],
3091 [[XIMProc callback;]])],
3093 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
3096 dnl '--with-xim' now controls only the initial value of use_xim at run time.
3098 if test "${with_xim}" != "no"; then
3099 AC_DEFINE(USE_XIM, 1,
3100 [Define to 1 if we should use XIM, if it is available.])
3104 if test "${HAVE_XIM}" != "no"; then
3106 if test "$GCC" = yes; then
3107 CFLAGS="$CFLAGS --pedantic-errors"
3109 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
3110 #include <X11/Xlib.h>
3111 #include <X11/Xresource.h>]],
3117 XPointer *client_data;
3119 /* If we're not using GCC, it's probably not XFree86, and this is
3120 probably right, but we can't use something like --pedantic-errors. */
3121 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
3122 char*, XIMProc, XPointer*);
3124 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
3126 [emacs_cv_arg6_star=yes])
3127 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
3128 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
3129 either XPointer or XPointer*.])dnl
3130 if test "$emacs_cv_arg6_star" = yes; then
3131 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
3133 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
3138 ### Start of font-backend (under any platform) section.
3139 # (nothing here yet -- this is a placeholder)
3140 ### End of font-backend (under any platform) section.
3142 ### Start of font-backend (under X11) section.
3143 if test "${HAVE_X11}" = "yes"; then
3144 ## Use -lXft if available, unless '--with-xft=no'.
3146 if test "x${with_x}" = "xno"; then
3150 if test "$with_xft" != no; then
3151 EMACS_CHECK_MODULES([FONTCONFIG], [fontconfig >= 2.2.0])
3152 with_xft=$HAVE_FONTCONFIG
3155 if test "x${with_xft}" != "xno"; then
3157 EMACS_CHECK_MODULES([XFT], [xft >= 0.13.0], [], [HAVE_XFT=no])
3158 ## Because xftfont.c uses XRenderQueryExtension, we also
3159 ## need to link to -lXrender.
3161 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
3162 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
3163 OLD_CPPFLAGS="$CPPFLAGS"
3164 OLD_CFLAGS="$CFLAGS"
3166 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
3167 CFLAGS="$CFLAGS $XFT_CFLAGS"
3168 XFT_LIBS="-lXrender $XFT_LIBS"
3169 LIBS="$XFT_LIBS $LIBS"
3170 AC_CHECK_HEADER(X11/Xft/Xft.h,
3171 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
3172 [[#include <X11/X.h>]])
3174 if test "${HAVE_XFT}" = "yes"; then
3175 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
3177 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
3178 fi # "${HAVE_XFT}" = "yes"
3179 CPPFLAGS=$OLD_CPPFLAGS
3182 fi # "$HAVE_XFT" != no
3183 fi # "x${with_xft}" != "xno"
3185 ## We used to allow building with FreeType and without Xft.
3186 ## However, the ftx font backend driver is not in good shape.
3187 if test "$HAVE_XFT" != "yes"; then
3188 dnl For the "Does Emacs use" message at the end.
3192 dnl Strict linkers fail with
3193 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
3194 dnl if -lfreetype is not specified.
3195 dnl The following is needed to set FREETYPE_LIBS.
3196 EMACS_CHECK_MODULES([FREETYPE], [freetype2])
3198 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
3202 if test "${HAVE_FREETYPE}" = "yes"; then
3203 AC_DEFINE(HAVE_FREETYPE, 1,
3204 [Define to 1 if using the freetype and fontconfig libraries.])
3205 if test "${with_libotf}" != "no"; then
3206 EMACS_CHECK_MODULES([LIBOTF], [libotf])
3207 if test "$HAVE_LIBOTF" = "yes"; then
3208 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
3209 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
3210 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
3211 HAVE_OTF_GET_VARIATION_GLYPHS=no)
3212 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
3213 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
3214 [Define to 1 if libotf has OTF_get_variation_glyphs.])
3218 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
3219 dnl Does the new font backend require it, or can it work without it?
3223 if test "${HAVE_LIBOTF}" = yes; then
3224 if test "${with_m17n_flt}" != "no"; then
3225 EMACS_CHECK_MODULES([M17N_FLT], [m17n-flt])
3226 if test "$HAVE_M17N_FLT" = "yes"; then
3227 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
3238 ### End of font-backend (under X11) section.
3240 AC_SUBST(FREETYPE_CFLAGS)
3241 AC_SUBST(FREETYPE_LIBS)
3242 AC_SUBST(FONTCONFIG_CFLAGS)
3243 AC_SUBST(FONTCONFIG_LIBS)
3244 AC_SUBST(LIBOTF_CFLAGS)
3245 AC_SUBST(LIBOTF_LIBS)
3246 AC_SUBST(M17N_FLT_CFLAGS)
3247 AC_SUBST(M17N_FLT_LIBS)
3250 if test "${HAVE_X11}" = "yes"; then
3251 if test "${with_cairo}" != "no"; then
3252 CAIRO_REQUIRED=1.12.0
3253 CAIRO_MODULE="cairo >= $CAIRO_REQUIRED"
3254 EMACS_CHECK_MODULES(CAIRO, $CAIRO_MODULE)
3255 if test $HAVE_CAIRO = yes; then
3256 AC_DEFINE(USE_CAIRO, 1, [Define to 1 if using cairo.])
3258 AC_MSG_ERROR([cairo requested but not found.])
3261 CFLAGS="$CFLAGS $CAIRO_CFLAGS"
3262 LIBS="$LIBS $CAIRO_LIBS"
3263 AC_SUBST(CAIRO_CFLAGS)
3264 AC_SUBST(CAIRO_LIBS)
3268 if test "${HAVE_X11}" = "yes"; then
3269 AC_CHECK_HEADER(X11/Xlib-xcb.h,
3270 AC_CHECK_LIB(xcb, xcb_translate_coordinates, HAVE_XCB=yes))
3271 if test "${HAVE_XCB}" = "yes"; then
3272 AC_CHECK_LIB(X11-xcb, XGetXCBConnection, HAVE_X11_XCB=yes)
3273 if test "${HAVE_X11_XCB}" = "yes"; then
3274 AC_DEFINE(USE_XCB, 1,
3275 [Define to 1 if you have the XCB library and X11-XCB library for mixed
3276 X11/XCB programming.])
3277 XCB_LIBS="-lX11-xcb -lxcb"
3283 ### Use -lXpm if available, unless '--with-xpm=no'.
3284 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
3285 ### The Cygwin-w32 build uses <noX/xpm.h> instead of <X11/xpm.h>, so
3286 ### we need to set LDFLAGS accordingly.
3289 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
3290 if test "${with_xpm}" != "no"; then
3291 SAVE_LDFLAGS="$LDFLAGS"
3292 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
3293 AC_CHECK_HEADER(noX/xpm.h,
3294 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
3295 if test "${HAVE_XPM}" = "yes"; then
3296 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3297 AC_EGREP_CPP(no_return_alloc_pixels,
3298 [#include "noX/xpm.h"
3299 #ifndef XpmReturnAllocPixels
3300 no_return_alloc_pixels
3302 ], HAVE_XPM=no, HAVE_XPM=yes)
3304 if test "${HAVE_XPM}" = "yes"; then
3308 LDFLAGS="$SAVE_LDFLAGS"
3313 if test "${HAVE_XPM}" = "yes"; then
3314 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3319 if test "${HAVE_X11}" = "yes"; then
3320 dnl Avoid Xpm on AIX unless requested, as it crashes; see Bug#17598.
3321 test "$opsys$with_xpm_set" = aix4-2 && with_xpm=no
3323 if test "${with_xpm}" != "no"; then
3324 AC_CHECK_HEADER(X11/xpm.h,
3325 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
3326 if test "${HAVE_XPM}" = "yes"; then
3327 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3328 AC_EGREP_CPP(no_return_alloc_pixels,
3329 [#include "X11/xpm.h"
3330 #ifndef XpmReturnAllocPixels
3331 no_return_alloc_pixels
3333 ], HAVE_XPM=no, HAVE_XPM=yes)
3335 if test "${HAVE_XPM}" = "yes"; then
3343 if test "${HAVE_XPM}" = "yes"; then
3344 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3346 elif test "$opsys,$LUCID_LIBW" = aix4-2,-lXaw; then
3347 dnl AIX -lXaw needs -lXpm linked too; see Bug#17598 Message#152.
3352 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
3353 ### slightly different requirements wrt image libraries (it doesn't
3354 ### use -lXpm because it loads the xpm shared library dynamically at
3356 if test "${opsys}" = "mingw32"; then
3357 if test "${with_xpm}" != "no"; then
3358 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
3362 if test "${HAVE_XPM}" = "yes"; then
3363 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3369 ### Use -ljpeg if available, unless '--with-jpeg=no'.
3372 if test "${with_jpeg}" != "no"; then
3373 AC_CACHE_CHECK([for jpeglib 6b or later],
3376 for emacs_cv_jpeglib in yes -ljpeg no; do
3377 case $emacs_cv_jpeglib in
3380 *) LIBS="$LIBS $emacs_cv_jpeglib";;
3384 [[#undef HAVE_STDLIB_H /* Avoid config.h/jpeglib.h collision. */
3385 #include <stdio.h> /* jpeglib.h needs FILE and size_t. */
3386 #include <jpeglib.h>
3388 char verify[JPEG_LIB_VERSION < 62 ? -1 : 1];
3389 struct jpeg_decompress_struct cinfo;
3392 jpeg_create_decompress (&cinfo);
3393 WARNMS (&cinfo, JWRN_JPEG_EOF);
3394 jpeg_destroy_decompress (&cinfo);
3396 [emacs_link_ok=yes],
3399 test $emacs_link_ok = yes && break
3401 if test "$emacs_cv_jpeglib" != no; then
3403 AC_DEFINE([HAVE_JPEG], 1,
3404 [Define to 1 if you have the jpeg library (typically -ljpeg).])
3405 ### mingw32 doesn't use -ljpeg, since it loads the library
3406 ### dynamically when needed, and doesn't want a run-time
3407 ### dependency on the jpeglib DLL.
3408 test "$emacs_cv_jpeglib" != yes && test "${opsys}" != "mingw32" \
3409 && LIBJPEG=$emacs_cv_jpeglib
3416 if test "${with_zlib}" != "no"; then
3418 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
3420 case $ac_cv_search_inflateEnd in
3421 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3424 if test "${HAVE_ZLIB}" = "yes"; then
3425 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3426 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3427 if test "${opsys}" = "mingw32"; then
3433 ### Dynamic modules support
3438 if test "${with_modules}" != "no"; then
3442 MODULES_SUFFIX=".so"
3446 MODULES_SUFFIX=".dll"
3450 MODULES_SUFFIX=".so"
3454 # BSD systems have dlopen in libc.
3455 AC_CHECK_FUNC([dlopen],
3456 [MODULES_SUFFIX=".so"
3461 if test "${HAVE_MODULES}" = no; then
3462 AC_MSG_ERROR([Dynamic modules are not supported on your system])
3465 LIBS="$LIBS $LIBMODULES"
3466 AC_CHECK_FUNCS([dladdr dlfunc])
3471 if test "${HAVE_MODULES}" = yes; then
3472 MODULES_OBJ="dynlib.o emacs-module.o"
3473 AC_DEFINE(HAVE_MODULES, 1, [Define to 1 if dynamic modules are enabled])
3474 AC_DEFINE_UNQUOTED(MODULES_SUFFIX, "$MODULES_SUFFIX",
3475 [System extension for dynamic libraries])
3477 AC_SUBST(MODULES_OBJ)
3478 AC_SUBST(LIBMODULES)
3480 ### Use -lpng if available, unless '--with-png=no'.
3484 if test "${NS_IMPL_COCOA}" = yes; then
3486 elif test "${with_png}" != no; then
3487 # mingw32 loads the library dynamically.
3488 if test "$opsys" = mingw32; then
3489 AC_CHECK_HEADER([png.h], [HAVE_PNG=yes])
3490 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3491 AC_MSG_CHECKING([for png])
3492 png_cflags=`(libpng-config --cflags) 2>&AS_MESSAGE_LOG_FD` &&
3493 png_ldflags=`(libpng-config --ldflags) 2>&AS_MESSAGE_LOG_FD` || {
3494 # libpng-config does not work; configure by hand.
3495 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
3496 # in /usr/include/libpng.
3497 if test -r /usr/include/libpng/png.h &&
3498 test ! -r /usr/include/png.h; then
3499 png_cflags=-I/usr/include/libpng
3507 CFLAGS="$CFLAGS $png_cflags"
3508 LIBS="$png_ldflags -lz -lm $LIBS"
3510 [AC_LANG_PROGRAM([[#include <png.h>]],
3511 [[return !png_get_channels (0, 0);]])],
3513 PNG_CFLAGS=`AS_ECHO(["$png_cflags"]) | sed -e "$edit_cflags"`
3515 # $LIBPNG requires explicit -lz in some cases.
3516 # We don't know what those cases are, exactly, so play it safe and
3517 # append -lz to any nonempty $LIBPNG, unless we're already using LIBZ.
3518 if test -n "$LIBPNG" && test -z "$LIBZ"; then
3519 LIBPNG="$LIBPNG -lz"
3523 AC_MSG_RESULT([$HAVE_PNG])
3526 if test $HAVE_PNG = yes; then
3527 AC_DEFINE([HAVE_PNG], [1], [Define to 1 if you have the png library.])
3530 CFLAGS="$CFLAGS $PNG_CFLAGS"
3531 AC_CHECK_DECL([png_longjmp],
3533 [AC_DEFINE([PNG_DEPSTRUCT], [],
3534 [Define to empty to suppress deprecation warnings when building
3535 with --enable-gcc-warnings and with libpng versions before 1.5,
3536 which lack png_longjmp.])],
3542 AC_SUBST(PNG_CFLAGS)
3544 ### Use -ltiff if available, unless '--with-tiff=no'.
3545 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3548 if test "${opsys}" = "mingw32"; then
3549 if test "${with_tiff}" != "no"; then
3550 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3552 if test "${HAVE_TIFF}" = "yes"; then
3553 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3555 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3556 if test "${with_tiff}" != "no"; then
3557 AC_CHECK_HEADER(tiffio.h,
3559 # At least one tiff package requires the jpeg library.
3560 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3561 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3564 if test "${HAVE_TIFF}" = "yes"; then
3565 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3566 dnl FIXME -lz -lm, as per libpng?
3572 ### Use -lgif or -lungif if available, unless '--with-gif=no'.
3573 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3576 if test "${opsys}" = "mingw32"; then
3577 if test "${with_gif}" != "no"; then
3578 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3580 if test "${HAVE_GIF}" = "yes"; then
3581 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3583 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3584 || test "${HAVE_W32}" = "yes"; then
3585 AC_CHECK_HEADER(gif_lib.h,
3586 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3587 # Earlier versions can crash Emacs, but version 5.0 removes EGifPutExtensionLast.
3588 [AC_CHECK_LIB(gif, GifMakeMapObject, HAVE_GIF=yes,
3589 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])])
3591 if test "$HAVE_GIF" = yes; then
3593 elif test "$HAVE_GIF" = maybe; then
3594 # If gif_lib.h but no libgif, try libungif.
3595 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3596 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3599 if test "${HAVE_GIF}" = "yes"; then
3600 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3605 dnl Check for required libraries.
3608 if test "${HAVE_X11}" = "yes"; then
3609 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3610 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3611 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3612 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3613 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3614 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3615 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3616 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3617 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3618 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3620 test "${with_gnutls}" != "no" && test "${HAVE_GNUTLS}" != "yes" &&
3621 MISSING="$MISSING gnutls" && WITH_NO="$WITH_NO --with-gnutls=no"
3622 if test "X${MISSING}" != X; then
3623 AC_MSG_ERROR([The following required libraries were not found:
3625 Maybe some development libraries/packages are missing?
3626 If you don't want to link with them give
3628 as options to configure])
3631 ### Use -lgpm if available, unless '--with-gpm=no'.
3634 if test "${with_gpm}" != "no"; then
3635 AC_CHECK_HEADER(gpm.h,
3636 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3638 if test "${HAVE_GPM}" = "yes"; then
3639 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3645 dnl Check for malloc/malloc.h on darwin
3646 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3649 ### Use NeXTstep API to implement GUI.
3650 if test "${HAVE_NS}" = "yes"; then
3651 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on macOS.])
3652 if test "${NS_IMPL_COCOA}" = "yes"; then
3653 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under macOS.])
3655 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3656 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3657 if test $NS_GNUSTEP_CONFIG != yes; then
3658 # See also .m.o rule in src/Makefile.in. */
3659 # FIXME: are all these flags really needed? Document here why. */
3660 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3661 ## Extra CFLAGS applied to src/*.m files.
3662 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3668 ### Use session management (-lSM -lICE) if available
3671 if test "${HAVE_X11}" = "yes"; then
3672 AC_CHECK_HEADER(X11/SM/SMlib.h,
3673 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3675 if test "${HAVE_X_SM}" = "yes"; then
3676 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3682 ### Use XRandr (-lXrandr) if available
3684 if test "${HAVE_X11}" = "yes"; then
3685 XRANDR_REQUIRED=1.2.2
3686 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3687 EMACS_CHECK_MODULES([XRANDR], [$XRANDR_MODULES])
3688 if test $HAVE_XRANDR = no; then
3689 # Test old way in case pkg-config doesn't have it (older machines).
3690 # Include Xrender.h by hand to work around bug in older Xrandr.h
3691 # (e.g. RHEL5) and silence (harmless) configure warning (bug#18465).
3692 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3693 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)],
3694 [], [AC_INCLUDES_DEFAULT
3695 #include <X11/extensions/Xrender.h>])
3696 if test $HAVE_XRANDR = yes; then
3697 XRANDR_LIBS=-lXrandr
3700 if test $HAVE_XRANDR = yes; then
3701 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3704 AC_SUBST(XRANDR_CFLAGS)
3705 AC_SUBST(XRANDR_LIBS)
3707 ### Use Xinerama (-lXinerama) if available
3709 if test "${HAVE_X11}" = "yes"; then
3710 XINERAMA_REQUIRED=1.0.2
3711 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3712 EMACS_CHECK_MODULES([XINERAMA], [$XINERAMA_MODULES])
3713 if test $HAVE_XINERAMA = no; then
3714 # Test old way in case pkg-config doesn't have it (older machines).
3715 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3716 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3717 if test $HAVE_XINERAMA = yes; then
3718 XINERAMA_LIBS=-lXinerama
3721 if test $HAVE_XINERAMA = yes; then
3722 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3725 AC_SUBST(XINERAMA_CFLAGS)
3726 AC_SUBST(XINERAMA_LIBS)
3728 ### Use Xfixes (-lXfixes) if available
3730 if test "${HAVE_X11}" = "yes"; then
3731 XFIXES_REQUIRED=4.0.0
3732 XFIXES_MODULES="xfixes >= $XFIXES_REQUIRED"
3733 EMACS_CHECK_MODULES([XFIXES], [$XFIXES_MODULES])
3734 if test $HAVE_XFIXES = no; then
3735 # Test old way in case pkg-config doesn't have it (older machines).
3736 AC_CHECK_HEADER(X11/extensions/Xfixes.h,
3737 [AC_CHECK_LIB(Xfixes, XFixesHideCursor, HAVE_XFIXES=yes)])
3738 if test $HAVE_XFIXES = yes; then
3739 XFIXES_LIBS=-lXfixes
3742 if test $HAVE_XFIXES = yes; then
3743 AC_DEFINE(HAVE_XFIXES, 1, [Define to 1 if you have the Xfixes extension.])
3746 AC_SUBST(XFIXES_CFLAGS)
3747 AC_SUBST(XFIXES_LIBS)
3749 ### Use Xdbe (-lXdbe) if available
3751 if test "${HAVE_X11}" = "yes"; then
3752 AC_CHECK_HEADER(X11/extensions/Xdbe.h,
3753 [AC_CHECK_LIB(Xext, XdbeAllocateBackBufferName, HAVE_XDBE=yes)],
3755 [#include <X11/Xlib.h>
3757 if test $HAVE_XDBE = yes; then
3760 if test $HAVE_XDBE = yes; then
3761 AC_DEFINE(HAVE_XDBE, 1, [Define to 1 if you have the Xdbe extension.])
3764 AC_SUBST(XDBE_CFLAGS)
3767 ### Use libxml (-lxml2) if available
3768 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3770 if test "${with_xml2}" != "no"; then
3771 ### I'm not sure what the version number should be, so I just guessed.
3772 EMACS_CHECK_MODULES([LIBXML2], [libxml-2.0 > 2.6.17])
3773 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3774 if test "${HAVE_LIBXML2}" != "yes" && test "$opsys" = "darwin"; then
3775 SAVE_CPPFLAGS="$CPPFLAGS"
3776 if test -z "$xcsdkdir" -a -n "$XCRUN" -a ! -d /usr/include; then
3777 dnl /usr/include is not found. Try Xcode SDK dir if it is sane.
3778 xcsdkdir=`$XCRUN --show-sdk-path 2>/dev/null`
3780 *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
3784 CPPFLAGS="$CPPFLAGS -I$xcsdkdir/usr/include/libxml2"
3785 AC_CHECK_HEADER(libxml/HTMLparser.h,
3786 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3787 [#include <libxml/HTMLparser.h>])])
3788 CPPFLAGS="$SAVE_CPPFLAGS"
3789 if test "${HAVE_LIBXML2}" = "yes"; then
3790 LIBXML2_CFLAGS="-I'$xcsdkdir/usr/include/libxml2'"
3791 LIBXML2_LIBS="-lxml2"
3794 if test "${HAVE_LIBXML2}" = "yes"; then
3795 if test "${opsys}" != "mingw32"; then
3796 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no,
3801 if test "${HAVE_LIBXML2}" = "yes"; then
3802 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3809 AC_SUBST(LIBXML2_LIBS)
3810 AC_SUBST(LIBXML2_CFLAGS)
3814 if test ! "$with_mailutils"; then
3815 # Check for mail-locking functions in a "mail" library. Probably this should
3816 # have the same check as for liblockfile below.
3817 AC_CHECK_LIB([mail], [maillock], [have_mail=yes], [have_mail=no])
3818 if test $have_mail = yes; then
3820 AC_DEFINE([HAVE_LIBMAIL], [1],
3821 [Define to 1 if you have the 'mail' library (-lmail).])
3824 LIBS="$LIBS_MAIL $LIBS"
3825 AC_CHECK_FUNCS([touchlock])
3828 dnl Debian, at least:
3829 AC_CHECK_LIB([lockfile], [maillock], [have_lockfile=yes], [have_lockfile=no])
3830 if test $have_lockfile = yes; then
3831 LIBS_MAIL=-llockfile
3832 AC_DEFINE([HAVE_LIBLOCKFILE], [1],
3833 [Define to 1 if you have the 'lockfile' library (-llockfile).])
3835 # If we have the shared liblockfile, assume we must use it for mail
3836 # locking (e.g. Debian). If we couldn't link against liblockfile
3837 # (no liblockfile.a installed), ensure that we don't need to.
3838 dnl This works for files generally, not just executables.
3839 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3840 AC_CHECK_PROG([liblockfile], [liblockfile.so], [yes], [no],
3841 [/usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH])
3842 if test "$ac_cv_prog_liblockfile" = yes; then
3843 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3844 This probably means that movemail could lose mail.
3845 There may be a 'development' package to install containing liblockfile.])
3848 AC_CHECK_HEADERS([maillock.h])
3850 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3851 ## interlock access to the mail spool. The alternative is a lock file named
3852 ## /usr/spool/mail/$USER.lock.
3855 aix4-2) mail_lock="lockf" ;;
3857 gnu|freebsd|dragonfly|netbsd|openbsd|darwin) mail_lock="flock" ;;
3859 ## On GNU/Linux systems, both methods are used by various mail programs.
3860 ## I assume most people are using newer mailers that have heard of flock.
3861 ## Change this if you need to.
3862 ## Debian contains a patch which says: "On Debian/GNU/Linux systems,
3863 ## configure gets the right answers, and that means *NOT* using flock.
3864 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3865 ## for details." and then uses '#ifdef DEBIAN'. Unfortunately the
3866 ## Debian maintainer hasn't provided a clean fix for Emacs.
3867 ## movemail.c will use 'maillock' when MAILDIR, HAVE_LIBMAIL and
3868 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3869 ## correct logic. -- fx
3870 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3871 ## liblockfile is a Free Software replacement for libmail, used on
3872 ## Debian systems and elsewhere. -rfr.
3875 if test $have_mail = yes || test $have_lockfile = yes; then
3876 test $ac_cv_header_maillock_h = yes && mail_lock=no
3880 mail_lock="none-needed" ;;
3884 flock) AC_DEFINE([MAIL_USE_FLOCK], [1],
3885 [Define if the mailer uses flock to interlock the mail spool.]);;
3887 lockf) AC_DEFINE([MAIL_USE_LOCKF], [1],
3888 [Define if the mailer uses lockf to interlock the mail spool.]);;
3892 *) BLESSMAIL_TARGET="need-blessmail" ;;
3895 AC_SUBST([BLESSMAIL_TARGET])
3896 AC_SUBST([LIBS_MAIL])
3899 LIBS="$LIB_PTHREAD $LIB_MATH $LIBS"
3900 AC_CHECK_FUNCS(accept4 fchdir gethostname \
3901 getrusage get_current_dir_name \
3902 lrand48 random rint trunc \
3903 select getpagesize setlocale newlocale \
3904 getrlimit setrlimit shutdown \
3905 pthread_sigmask strsignal setitimer \
3906 sendto recvfrom getsockname getifaddrs freeifaddrs \
3908 getpwent endpwent getgrent endgrent \
3909 cfmakeraw cfsetspeed __executable_start log2 prctl)
3912 dnl No need to check for posix_memalign if aligned_alloc works.
3913 AC_CHECK_FUNCS([aligned_alloc posix_memalign], [break])
3914 AC_CHECK_DECLS([aligned_alloc], [], [], [[#include <stdlib.h>]])
3916 dnl Cannot use AC_CHECK_FUNCS
3917 AC_CACHE_CHECK([for __builtin_unwind_init],
3918 emacs_cv_func___builtin_unwind_init,
3919 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3920 emacs_cv_func___builtin_unwind_init=yes,
3921 emacs_cv_func___builtin_unwind_init=no)])
3922 if test $emacs_cv_func___builtin_unwind_init = yes; then
3923 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3924 [Define to 1 if you have the '__builtin_unwind_init' function.])
3927 AC_CHECK_HEADERS_ONCE(sys/un.h)
3932 AC_CHECK_FUNCS(grantpt)
3934 # PTY-related GNU extensions.
3935 AC_CHECK_FUNCS(getpt posix_openpt)
3937 # Check this now, so that we will NOT find the above functions in ncurses.
3938 # That is because we have not set up to link ncurses in lib-src.
3939 # It's better to believe a function is not available
3940 # than to expect to find it in ncurses.
3941 # Also we need tputs and friends to be able to build at all.
3942 AC_MSG_CHECKING([for library containing tputs])
3943 # Run a test program that contains a call to tputs, a call that is
3944 # never executed. This tests whether a pre-'main' dynamic linker
3945 # works with the library. It's too much trouble to actually call
3946 # tputs in the test program, due to portability hassles. When
3947 # cross-compiling, assume the test program will run if it links.
3948 AC_DEFUN([tputs_link_source], [
3950 [[extern void tputs (const char *, int, int (*)(int));
3951 int main (int argc, char **argv)
3954 tputs (argv[0], 0, 0);
3958 if test "${opsys}" = "mingw32"; then
3961 # Maybe curses should be tried earlier?
3962 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3963 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3965 if test -z "$tputs_library"; then
3969 LIBS_TERMCAP=-l$tputs_library
3971 LIBS="$LIBS_TERMCAP $LIBS"
3973 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3974 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3976 if test "X$msg" != Xno; then
3981 AC_MSG_RESULT([$msg])
3982 if test "X$msg" = Xno; then
3983 AC_MSG_ERROR([The required function 'tputs' was not found in any library.
3984 The following libraries were tried (in order):
3985 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3986 Please try installing whichever of these libraries is most appropriate
3987 for your system, together with its header files.
3988 For example, a libncurses-dev(el) or similar package.])
3991 ## Use termcap instead of terminfo?
3992 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3994 ## FIXME? In the cases below where we unconditionally set
3995 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3996 ## if that was found above to have tputs.
3997 ## Should we use the gnu* logic everywhere?
3999 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
4000 ## The ncurses library has been moved out of the System framework in
4001 ## Mac OS X 10.2. So if configure detects it, set the command-line
4002 ## option to use it.
4003 darwin) LIBS_TERMCAP="-lncurses" ;;
4005 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
4008 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
4009 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
4010 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
4011 [[#if __FreeBSD_version < 400000
4014 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
4016 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
4018 if test $emacs_cv_freebsd_terminfo = yes; then
4019 LIBS_TERMCAP="-lncurses"
4022 LIBS_TERMCAP="-ltermcap"
4032 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
4034 LIBS_TERMCAP="-ltermcap"
4038 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
4040 ## hpux: Make sure we get select from libc rather than from libcurses
4041 ## because libcurses on HPUX 10.10 has a broken version of select.
4042 ## We used to use -lc -lcurses, but this may be cleaner.
4043 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
4044 # set that way, now it uses the default). Isn't this a contradiction?
4045 hpux*) LIBS_TERMCAP="-ltermcap" ;;
4049 TERMCAP_OBJ=tparam.o
4050 if test $TERMINFO = yes; then
4051 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
4052 TERMCAP_OBJ=terminfo.o
4054 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
4055 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
4057 AC_SUBST(LIBS_TERMCAP)
4058 AC_SUBST(TERMCAP_OBJ)
4060 # GNU/Linux-specific timer functions.
4061 AC_CACHE_CHECK([for timerfd interface], [emacs_cv_have_timerfd],
4063 [AC_LANG_PROGRAM([[#include <sys/timerfd.h>
4065 [[timerfd_create (CLOCK_REALTIME,
4066 TFD_CLOEXEC | TFD_NONBLOCK);
4067 timerfd_settime (0, TFD_TIMER_ABSTIME, 0, 0);]])],
4068 [emacs_cv_have_timerfd=yes],
4069 [emacs_cv_have_timerfd=no])])
4070 if test "$emacs_cv_have_timerfd" = yes; then
4071 AC_DEFINE([HAVE_TIMERFD], 1,
4072 [Define to 1 if timerfd functions are supported as in GNU/Linux.])
4075 # Alternate stack for signal handlers.
4076 AC_CACHE_CHECK([whether signals can be handled on alternate stack],
4077 [emacs_cv_alternate_stack],
4079 [AC_LANG_PROGRAM([[#include <signal.h>
4082 struct sigaction sa;
4083 ss.ss_sp = malloc (SIGSTKSZ);
4084 ss.ss_size = SIGSTKSZ;
4085 sa.sa_flags = SA_SIGINFO | SA_ONSTACK;
4086 sigaltstack (&ss, 0);
4087 sigaction (SIGSEGV, &sa, 0);]])],
4088 [emacs_cv_alternate_stack=yes],
4089 [emacs_cv_alternate_stack=no])])
4091 # Do we need the Hesiod library to provide the support routines?
4092 dnl FIXME? Should we be skipping this on Darwin too?
4095 if test "$with_hesiod" != no ; then
4096 # Don't set $LIBS here -- see comments above. FIXME which comments?
4098 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
4099 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
4100 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
4101 if test "$resolv" = yes ; then
4107 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
4108 hesiod=yes, :, $RESOLVLIB)])
4110 if test x"$hesiod" = xyes; then
4112 LIBRESOLV=$RESOLVLIB
4118 # These tell us which Kerberos-related libraries to use.
4125 if test "${with_kerberos}" != no; then
4127 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
4128 if test $have_com_err = yes; then
4129 COM_ERRLIB=-lcom_err
4130 LIBS="$COM_ERRLIB $LIBS"
4132 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
4133 if test $have_crypto = yes; then
4135 LIBS="$CRYPTOLIB $LIBS"
4137 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
4138 if test $have_k5crypto = yes; then
4139 CRYPTOLIB=-lk5crypto
4140 LIBS="$CRYPTOLIB $LIBS"
4142 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
4143 if test $have_krb5=yes; then
4145 LIBS="$KRB5LIB $LIBS"
4147 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
4148 if test "${with_kerberos5}" = no; then
4149 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
4150 if test $have_des425 = yes; then
4152 LIBS="$DESLIB $LIBS"
4154 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
4155 if test $have_des = yes; then
4157 LIBS="$DESLIB $LIBS"
4160 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
4161 if test $have_krb4 = yes; then
4163 LIBS="$KRB4LIB $LIBS"
4165 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
4166 if test $have_krb = yes; then
4168 LIBS="$KRB4LIB $LIBS"
4173 if test "${with_kerberos5}" != no; then
4174 AC_CHECK_HEADERS(krb5.h,
4175 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
4176 [#include <krb5.h>])])
4178 AC_CHECK_HEADERS(krb.h,,
4179 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
4180 [AC_CHECK_HEADERS(kerberos/krb.h)])])
4182 AC_CHECK_HEADERS(com_err.h)
4186 AC_SUBST(COM_ERRLIB)
4192 AC_CHECK_HEADERS(valgrind/valgrind.h)
4194 AC_CHECK_MEMBERS([struct unipair.unicode], [], [], [[#include <linux/kd.h>]])
4196 AC_CHECK_FUNCS_ONCE([sbrk tzset])
4199 AC_CHECK_FUNC(socket, , ok_so_far=no)
4200 if test $ok_so_far = yes; then
4201 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
4203 if test $ok_so_far = yes; then
4204 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
4206 if test $ok_so_far = yes; then
4207 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
4208 AC_DEFINE(HAVE_INET_SOCKETS, 1,
4209 [Define to 1 if you have inet sockets.])
4214 AC_CHECK_FUNCS(snprintf)
4216 dnl Check for glib. This differs from other library checks in that
4217 dnl Emacs need not link to glib unless some other library is already
4218 dnl linking to glib. Although glib provides no facilities that Emacs
4219 dnl needs for its own purposes, when glib is present Emacs needs to
4220 dnl use primitives like g_main_context_query to avoid clashing with
4221 dnl glib at a low level.
4223 dnl Check this late, since it depends on $GTK_CFLAGS etc.
4227 CFLAGS="$CFLAGS $GTK_CFLAGS $RSVG_CFLAGS $DBUS_CFLAGS $SETTINGS_CFLAGS"
4228 LIBS="$LIBS $GTK_LIBS $RSVG_LIBS $DBUS_LIBS $SETTINGS_LIBS"
4229 CFLAGS="$CFLAGS $NOTIFY_CFLAGS $CAIRO_CFLAGS"
4230 LIBS="$LIBS $NOTIFY_LIBS $CAIRO_LIBS"
4231 AC_MSG_CHECKING([whether GLib is linked in])
4232 AC_LINK_IFELSE([AC_LANG_PROGRAM(
4235 [[g_print ("Hello world");]])],
4238 AC_MSG_RESULT([$links_glib])
4239 if test "${links_glib}" = "yes"; then
4240 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
4241 if test "$HAVE_NS" = no;then
4249 dnl Adapted from Haible's version.
4250 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
4251 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
4252 [[char* cs = nl_langinfo(CODESET);]])],
4253 emacs_cv_langinfo_codeset=yes,
4254 emacs_cv_langinfo_codeset=no)
4256 if test $emacs_cv_langinfo_codeset = yes; then
4257 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
4258 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
4263 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
4264 dnl how the tty code is related to POSIX and/or other versions of termios.
4265 dnl The following looks like a useful start.
4267 dnl AC_SYS_POSIX_TERMIOS
4268 dnl if test $ac_cv_sys_posix_termios = yes; then
4269 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
4270 dnl and macros for terminal control.])
4271 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
4274 dnl Turned on June 1996 supposing nobody will mind it.
4275 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
4276 if test "${opsys}" != "mingw32"; then
4277 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
4278 in the full name stands for the login id.])
4281 dnl Everybody supports this, except MS.
4282 dnl Seems like the kind of thing we should be testing for, though.
4283 ## Note: PTYs are broken on darwin <6. Use at your own risk.
4284 if test "${opsys}" != "mingw32"; then
4285 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
4288 dnl Everybody supports this, except MS-DOS.
4289 dnl Seems like the kind of thing we should be testing for, though.
4290 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
4291 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
4292 4.2-compatible sockets.])
4294 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
4296 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
4297 a null file, or a data sink.])
4298 if test "${opsys}" = "mingw32"; then
4299 AC_DEFINE(NULL_DEVICE, ["NUL:"])
4301 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
4304 if test "${opsys}" = "mingw32"; then
4309 AC_DEFINE_UNQUOTED(SEPCHAR, ['$SEPCHAR'], [Character that separates PATH elements.])
4310 dnl This is for MinGW, and is used in test/Makefile.in.
4311 dnl The MSYS Bash has heuristics for replacing ':' with ';' when it
4312 dnl decides that a command-line argument to be passed to a MinGW program
4313 dnl is a PATH-style list of directories. But that heuristics plays it
4314 dnl safe, and only does the replacement when it is _absolutely_ sure it
4315 dnl sees a colon-separated list of file names; e.g. ":." is left alone,
4316 dnl which breaks in-tree builds. So we do this manually instead.
4317 dnl Note that we cannot rely on PATH_SEPARATOR, as that one will always
4318 dnl be computed as ':' in MSYS Bash.
4321 dnl Everybody supports this, except MS-DOS.
4322 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
4324 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
4327 AC_DEFINE(DIRECTORY_SEP, ['/'],
4328 [Character that separates directories in a file name.])
4330 if test "${opsys}" = "mingw32"; then
4331 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
4332 [Returns true if character is a device separator.])
4334 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
4335 [Returns true if character is a directory separator.])
4337 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
4338 [Returns true if character is any form of separator.])
4340 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
4341 [Returns true if character is a device separator.])
4343 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
4344 [Returns true if character is a directory separator.])
4346 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
4347 [Returns true if character is any form of separator.])
4350 if test "$USE_X_TOOLKIT" != "none"; then
4354 dnl Assar Westerlund <assar@sics.se> says this is necessary
4355 dnl for HP-UX 10.20, and that it works for HP-UX 0 as well.
4359 if test "$have_editres" != no && test ! -z "$LIBXMU"; then
4361 dnl See libXmu.a check above.
4362 if test x$HAVE_X11XTR6 = xyes; then
4363 LIBS="-lXt -lSM -lICE $LIBXMU"
4365 OTHERLIBS="-lXt -$LIBXMU"
4368 [#include <X11/Intrinsic.h>
4369 #include <X11/Xmu/Editres.h>],
4370 [_XEditResCheckMessages (0, 0, 0, 0);],
4371 [AC_DEFINE([X_TOOLKIT_EDITRES], 1,
4372 [Define to 1 if we should use XEditRes.])])
4379 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
4380 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
4381 dnl need the constant to dimension an array. So wire in the appropriate
4383 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
4387 emacs_broken_SIGIO=no
4390 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
4391 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
4392 hpux* | nacl | openbsd | sol2* | unixware )
4393 emacs_broken_SIGIO=yes
4397 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
4398 dnl the way this system works, libc functions that return malloced
4399 dnl memory use the libc malloc implementation. Calling xfree or
4400 dnl xrealloc on the results of such functions results in a crash.
4402 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
4403 dnl but that does not currently work on this system.
4405 dnl It is possible to completely override the malloc implementation on
4406 dnl AIX, but that involves putting the malloc functions in a shared
4407 dnl library and setting the MALLOCTYPE environment variable to point to
4408 dnl that shared library.
4410 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
4411 dnl to avoid a crash just use the Emacs implementation for that function.
4413 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
4414 dnl of this file, so that we do not check for get_current_dir_name
4415 dnl on AIX. But that might be fragile if something else ends
4416 dnl up testing for get_current_dir_name as a dependency.
4417 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
4418 get_current_dir_name should not be used.])
4422 dnl Circumvent a bug in FreeBSD. In the following sequence of
4423 dnl writes/reads on a PTY, read(2) returns bogus data:
4425 dnl write(2) 1022 bytes
4426 dnl write(2) 954 bytes, get EAGAIN
4427 dnl read(2) 1024 bytes in process_read_output
4428 dnl read(2) 11 bytes in process_read_output
4430 dnl That is, read(2) returns more bytes than have ever been written
4431 dnl successfully. The 1033 bytes read are the 1022 bytes written
4432 dnl successfully after processing (for example with CRs added if the
4433 dnl terminal is set up that way which it is here). The same bytes will
4434 dnl be seen again in a later read(2), without the CRs.
4435 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
4436 work around an issue when reading from a PTY.])
4442 dnl FIXME Can't we test if this exists (eg /proc/$$)?
4443 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
4448 darwin | dragonfly | freebsd | netbsd | openbsd )
4449 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
4450 close a pty to make it a controlling terminal (it is already a
4451 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
4455 dnl FIXME Surely we can test for this rather than hard-code it.
4457 netbsd | openbsd) sound_device="/dev/audio" ;;
4458 *) sound_device="/dev/dsp" ;;
4462 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
4463 [Name of the default sound device.])
4466 dnl Emacs can read input using SIGIO and buffering characters itself,
4467 dnl or using CBREAK mode and making C-g cause SIGINT.
4468 dnl The choice is controlled by the variable interrupt_input.
4470 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
4472 dnl Emacs uses the presence of the USABLE_SIGIO macro
4473 dnl to indicate whether or not signal-driven I/O is possible. It uses
4474 dnl INTERRUPT_INPUT to decide whether to use it by default.
4476 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
4477 dnl CBREAK mode has two disadvantages
4478 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
4479 dnl I hear that in system V this problem does not exist.
4480 dnl 2) Control-G causes output to be discarded.
4481 dnl I do not know whether this can be fixed in system V.
4483 dnl Another method of doing input is planned but not implemented.
4484 dnl It would have Emacs fork off a separate process
4485 dnl to read the input and send it to the true Emacs process
4488 darwin | gnu-linux | gnu-kfreebsd )
4489 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
4494 dnl If the system's imake configuration file defines 'NeedWidePrototypes'
4495 dnl as 'NO', we must define NARROWPROTO manually. Such a define is
4496 dnl generated in the Makefile generated by 'xmkmf'. If we don't define
4497 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
4498 dnl taking float or double parameters.
4500 cygwin|gnu|gnu-linux|gnu-kfreebsd|freebsd|netbsd|openbsd)
4501 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
4502 file defines 'NeedWidePrototypes' as 'NO'.])
4507 dnl Used in process.c, this must be a loop, even if it only runs once.
4508 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
4509 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
4510 dnl trying suffixes 0-16.
4511 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
4512 first PTY, if PTYs are supported.])
4513 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
4514 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
4515 end of a PTY, if non-standard.])
4516 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
4517 end of a PTY, if non-standard.])
4521 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4522 dnl You allocate a pty by opening /dev/ptc to get the master side.
4523 dnl To get the name of the slave side, you just ttyname() the master side.
4524 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4525 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4529 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4530 dnl multi-line AC_DEFINEs are hard. :(
4531 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)])
4532 AC_DEFINE(PTY_NAME_SPRINTF, [])
4533 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4537 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4540 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd | darwin | nacl )
4542 if test "x$ac_cv_func_grantpt" = xyes; then
4543 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4544 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4545 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4546 dnl to prevent sigchld_handler from intercepting the child's death.
4547 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); }])
4548 dnl if HAVE_POSIX_OPENPT
4549 if test "x$ac_cv_func_posix_openpt" = xyes; then
4550 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (false)])
4551 AC_DEFINE(PTY_NAME_SPRINTF, [])
4553 elif test "x$ac_cv_func_getpt" = xyes; then
4554 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4555 AC_DEFINE(PTY_NAME_SPRINTF, [])
4557 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4560 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4565 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4566 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4567 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4571 dnl On SysVr4, grantpt(3) forks a subprocess, so do not use
4572 dnl O_CLOEXEC when opening the pty, and keep the SIGCHLD handler
4573 dnl from intercepting that death. If any child but grantpt's should die
4574 dnl within, it should be caught after sigrelse(2).
4575 AC_DEFINE(PTY_OPEN, [fd = open (pty_name, O_RDWR | O_NONBLOCK)])
4576 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); }])
4580 dnl Comments are as per sol2*.
4581 AC_DEFINE(PTY_OPEN, [fd = open (pty_name, O_RDWR | O_NONBLOCK)])
4582 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); }])
4589 dnl This change means that we don't loop through allocate_pty too
4590 dnl many times in the (rare) event of a failure.
4591 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4592 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4593 dnl Push various streams modules onto a PTY channel. Used in process.c.
4594 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.])
4599 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4600 "typing" a signal character on the pty.])
4603 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4604 aix4-2 | cygwin | gnu | dragonfly | freebsd | netbsd | openbsd | darwin )
4605 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4608 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4609 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4610 gnu-linux | gnu-kfreebsd )
4612 AC_MSG_CHECKING([for signals via characters])
4613 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4614 #include <linux/version.h>
4615 #if LINUX_VERSION_CODE < 0x20400
4616 # error "Linux version too old"
4618 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4620 AC_MSG_RESULT([$emacs_signals_via_chars])
4621 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4626 AH_TEMPLATE(TAB3, [Undocumented.])
4629 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4631 gnu | dragonfly | freebsd | netbsd | openbsd )
4632 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4633 AC_DEFINE(TAB3, OXTABS)
4636 gnu-linux | gnu-kfreebsd )
4637 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4641 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4642 [do { extern void *__libc_ia64_register_backing_store_base; __builtin_ia64_flushrs (); mark_memory (__libc_ia64_register_backing_store_base, __builtin_ia64_bsp ());} while (false)],
4643 [Mark a secondary stack, like the register stack on the ia64.]), [])
4647 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4648 run_time_remap; for HPUX.])
4653 dnl This won't be used automatically yet. We also need to know, at least,
4654 dnl that the stack is continuous.
4655 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4656 registers relevant for conservative garbage collection in the jmp_buf.])
4660 dnl Not all the architectures are tested, but there are Debian packages
4661 dnl for SCM and/or Guile on them, so the technique must work. See also
4662 dnl comments in alloc.c concerning setjmp and gcc.
4663 dnl Fixme: it's probably safe to just use the GCC conditional below.
4664 gnu-linux | gnu-kfreebsd )
4665 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4666 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4667 || defined __alpha__ || defined __mips__ || defined __s390__ \
4668 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4669 || defined __ia64__ || defined __sh__
4672 # error "setjmp not known to work on this arch"
4674 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4679 if test x$GCC = xyes; then
4680 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4681 AC_DEFINE(GC_SETJMP_WORKS, 1)
4684 aix* | dragonfly | freebsd | netbsd | openbsd | sol2* )
4685 AC_DEFINE(GC_SETJMP_WORKS, 1)
4690 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4691 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4694 [[#include <setjmp.h>
4696 # define _longjmp longjmp
4701 _longjmp (j, 1);]])],
4702 [emacs_cv_func__setjmp=yes],
4703 [emacs_cv_func__setjmp=no])])
4704 if test $emacs_cv_func__setjmp = yes; then
4705 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4708 # We need to preserve signal mask to handle C stack overflows.
4709 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4712 [[#include <setjmp.h>
4715 if (! sigsetjmp (j, 1))
4716 siglongjmp (j, 1);]])],
4717 [emacs_cv_func_sigsetjmp=yes],
4718 [emacs_cv_func_sigsetjmp=no])])
4719 if test $emacs_cv_func_sigsetjmp = yes; then
4720 AC_DEFINE([HAVE_SIGSETJMP], 1,
4721 [Define to 1 if sigsetjmp and siglongjmp work.])
4724 case $emacs_cv_func_sigsetjmp,$emacs_cv_alternate_stack,$opsys in
4725 yes,yes,* | *,*,mingw32)
4726 AC_DEFINE([HAVE_STACK_OVERFLOW_HANDLING], 1,
4727 [Define to 1 if C stack overflow can be handled in some cases.]);;
4732 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4733 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4734 dnl and this is all we need.
4735 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4742 dnl Used in xfaces.c.
4743 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4744 some systems, where it requires time.h.])
4749 dnl Define symbols to identify the version of Unix this is.
4750 dnl Define all the symbols that apply correctly.
4751 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4752 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4753 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4754 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4759 dnl This symbol should be defined on AIX Version 3 ???????
4760 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4762 # error "_AIX not defined"
4764 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4768 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4772 dnl Not __APPLE__, as this may not be defined on non-macOS Darwin.
4773 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4774 dnl distinguish macOS from pure Darwin.
4775 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4778 gnu-linux | gnu-kfreebsd )
4780 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4785 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4789 AC_DEFINE(DOS_NT, [])
4790 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4791 if test "x$ac_enable_checking" != "x" ; then
4792 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4798 AC_DEFINE(USG5_4, [])
4799 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4804 AC_DEFINE(USG5_4, [])
4808 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4811 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4812 emacs_cv_usable_FIONREAD=no
4816 emacs_cv_usable_FIONREAD=yes
4821 [AC_LANG_PROGRAM([[#include <sys/types.h>
4822 #include <sys/ioctl.h>
4824 # include <sys/filio.h>
4827 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4828 [emacs_cv_usable_FIONREAD=yes],
4829 [emacs_cv_usable_FIONREAD=no])
4832 if test $emacs_cv_usable_FIONREAD = yes; then
4833 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4835 if test $emacs_broken_SIGIO = no; then
4836 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4838 [AC_LANG_PROGRAM([[#include <fcntl.h>
4841 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4842 [emacs_cv_usable_SIGIO=yes],
4843 [emacs_cv_usable_SIGIO=no])],
4844 [emacs_cv_usable_SIGIO=yes],
4845 [emacs_cv_usable_SIGIO=no])
4846 if test $emacs_cv_usable_SIGIO = yes; then
4847 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4854 dnl It works to open the pty's tty in the parent (Emacs), then
4855 dnl close and reopen it in the child.
4856 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4857 works to open a pty's tty in the parent process, then close and
4858 reopen it in the child.])
4862 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4867 # Set up the CFLAGS for real compilation, so we can substitute it.
4868 CFLAGS="$REAL_CFLAGS"
4869 CPPFLAGS="$REAL_CPPFLAGS"
4872 ## Hack to detect a buggy GCC version.
4873 if test "$GCC" = yes && \
4874 $CC --version 2> /dev/null | grep 'gcc.* 4.5.0' >/dev/null; then
4876 *-fno-optimize-sibling-calls*) ;;
4878 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS.]);;
4882 version=$PACKAGE_VERSION
4884 copyright="Copyright (C) 2017 Free Software Foundation, Inc."
4885 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4886 [Short copyright string for this version of Emacs.])
4889 ### Specify what sort of things we'll be editing into Makefile and config.h.
4890 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4892 AC_SUBST(configuration)
4897 AC_SUBST(exec_prefix)
4900 AC_SUBST(sharedstatedir)
4901 AC_SUBST(libexecdir)
4905 AC_SUBST(standardlisppath)
4906 AC_SUBST(locallisppath)
4908 AC_SUBST(x_default_search_path)
4910 AC_SUBST(archlibdir)
4916 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4917 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4918 ## end of LIBX_BASE, but nothing ever set it.
4919 AC_SUBST(LD_SWITCH_X_SITE)
4920 AC_SUBST(C_SWITCH_X_SITE)
4921 AC_SUBST(GNUSTEP_CFLAGS)
4923 ## Used in lwlib/Makefile.in.
4924 AC_SUBST(X_TOOLKIT_TYPE)
4926 AC_SUBST(ns_appbindir)
4927 AC_SUBST(ns_appresdir)
4929 AC_SUBST(GNU_OBJC_CFLAGS)
4930 AC_SUBST(OTHER_FILES)
4932 if test -n "${term_header}"; then
4933 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4934 [Define to the header for the built-in window system.])
4937 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4938 [Define to the canonical Emacs configuration name.])
4939 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4940 [Define to the options passed to configure.])
4945 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4946 AC_DEFINE(HAVE_X_WINDOWS, 1,
4947 [Define to 1 if you want to use the X window system.])
4949 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4951 if test "$HAVE_CAIRO" = "yes"; then
4952 FONT_OBJ="ftfont.o ftcrfont.o"
4953 elif test "$HAVE_XFT" = "yes"; then
4954 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4955 elif test "$HAVE_FREETYPE" = "yes"; then
4956 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4966 if test "${USE_X_TOOLKIT}" != "none" ; then
4968 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4969 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4970 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4971 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4972 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4976 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4977 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4981 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4982 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4983 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4987 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4988 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4991 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4994 AC_SUBST(WIDGET_OBJ)
4997 case "$USE_X_TOOLKIT" in
4998 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4999 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
5000 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
5002 if test "$HAVE_XWIDGETS" = "yes"; then
5003 TOOLKIT_LIBW="$TOOLKIT_LIBW -lXcomposite"
5005 AC_SUBST(TOOLKIT_LIBW)
5007 if test "${opsys}" != "mingw32"; then
5008 if test "$USE_X_TOOLKIT" = "none"; then
5009 LIBXT_OTHER="\$(LIBXSM)"
5011 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
5014 AC_SUBST(LIBXT_OTHER)
5016 if test "${HAVE_X11}" = "yes" ; then
5017 AC_DEFINE(HAVE_X11, 1,
5018 [Define to 1 if you want to use version 11 of X windows.])
5019 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
5023 AC_SUBST(LIBX_OTHER)
5025 if test "$HAVE_GTK" = yes || test "$HAVE_X11" != yes; then
5027 elif test "$USE_X_TOOLKIT" = none; then
5028 LIBXMENU='$(oldXMenudir)/libXMenu11.a'
5029 AUTODEPEND_PARENTS="$AUTODEPEND_PARENTS oldXMenu"
5031 LIBXMENU='$(lwlibdir)/liblw.a'
5032 AUTODEPEND_PARENTS="$AUTODEPEND_PARENTS lwlib"
5036 AC_CACHE_CHECK([for struct alignment],
5037 [emacs_cv_struct_alignment],
5039 [AC_LANG_PROGRAM([[#include <stddef.h>
5040 struct __attribute__ ((aligned (8))) s { char c; };
5041 struct t { char c; struct s s; };
5042 char verify[offsetof (struct t, s) == 8 ? 1 : -1];
5044 [emacs_cv_struct_alignment=yes],
5045 [emacs_cv_struct_alignment=no])])
5046 if test "$emacs_cv_struct_alignment" = yes; then
5047 AC_DEFINE([HAVE_STRUCT_ATTRIBUTE_ALIGNED], 1,
5048 [Define to 1 if 'struct __attribute__ ((aligned (N)))' aligns the
5049 structure to an N-byte boundary.])
5052 if test "${GNU_MALLOC}" = "yes" ; then
5053 AC_DEFINE(GNU_MALLOC, 1,
5054 [Define to 1 if you want to use the GNU memory allocator.])
5058 if test "${REL_ALLOC}" = "yes" ; then
5059 AC_DEFINE(REL_ALLOC, 1,
5060 [Define REL_ALLOC if you want to use the relocating allocator for
5063 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
5065 AC_SUBST(RALLOC_OBJ)
5067 if test "$opsys" = "cygwin"; then
5068 CYGWIN_OBJ="cygw32.o"
5069 ## Cygwin differs because of its unexec().
5071 POST_ALLOC_OBJ=lastfile.o
5072 elif test "$opsys" = "mingw32"; then
5075 POST_ALLOC_OBJ=lastfile.o
5078 PRE_ALLOC_OBJ=lastfile.o
5081 AC_SUBST(CYGWIN_OBJ)
5082 AC_SUBST(PRE_ALLOC_OBJ)
5083 AC_SUBST(POST_ALLOC_OBJ)
5085 dnl Call this 'FORTIFY_SOUR' so that it sorts before the 'FORTIFY_SOURCE'
5086 dnl verbatim defined above. The tricky name is apropos, as this hack
5087 dnl makes Fortify go sour!
5088 AH_VERBATIM([FORTIFY_SOUR],
5089 [/* Without the following workaround, Emacs runs slowly on OS X 10.8.
5090 The workaround disables some useful run-time checking, so it
5091 should be conditional to the platforms with the performance bug.
5092 Perhaps Apple will fix this some day; also see m4/extern-inline.m4. */
5093 #if defined __APPLE__ && defined __GNUC__
5094 # ifndef _DONT_USE_CTYPE_INLINE_
5095 # define _DONT_USE_CTYPE_INLINE_
5097 # ifndef _FORTIFY_SOURCE
5098 # define _FORTIFY_SOURCE 0
5103 # If user asks to omit features, disable optional features that gnulib
5104 # might otherwise enable.
5105 if test "$with_features" = no && test "$enable_acl" != yes; then
5109 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
5110 # it temporarily reverts them to their pre-pkg-config values,
5111 # because gnulib needs to work with both src (which uses the
5112 # pkg-config stuff) and lib-src (which does not). For example, gnulib
5113 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
5114 # and it therefore needs to run in an environment where LIBS does not
5115 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
5116 # for some package unrelated to lib-src.
5119 CFLAGS=$pre_PKG_CONFIG_CFLAGS
5120 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
5121 gl_ASSERT_NO_GNULIB_POSIXCHECK
5122 gl_ASSERT_NO_GNULIB_TESTS
5127 if test "${opsys}" = "mingw32"; then
5128 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I \${abs_top_srcdir}/nt/inc"
5129 # Remove unneeded switches from the value of CC that goes to Makefiles
5130 CC=`AS_ECHO(["$CC"]) | sed -e "s,$GCC_TEST_OPTIONS,,"`
5134 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
5136 cygwin) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000" ;;
5139 ## The -headerpad option tells ld (see man page) to leave room at the
5140 ## end of the header for adding load commands. Needed for dumping.
5141 ## 0x1000 is enough for roughly 52 load commands on the x86_64
5142 ## architecture (where they are 78 bytes each). The actual number of
5143 ## load commands added is not consistent but normally ranges from
5144 ## about 14 to about 34. Setting it high gets us plenty of slop and
5145 ## only costs about 1.5K of wasted binary space.
5146 headerpad_extra=1000
5147 if test "$HAVE_NS" = "yes"; then
5148 libs_nsgui="-framework AppKit"
5149 if test "$NS_IMPL_COCOA" = "yes"; then
5150 libs_nsgui="$libs_nsgui -framework IOKit"
5155 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
5157 ## This is here because src/Makefile.in did some extra fiddling around
5158 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
5159 ## LD_SWITCH_SYSTEM_TEMACS instead,
5160 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
5161 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
5164 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
5165 ## find X at run-time.
5166 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
5167 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
5168 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
5169 ## had different values in configure (in ac_link) and src/Makefile.in.
5170 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
5171 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
5174 ## Is it any better under MinGW64 to relocate emacs into higher addresses?
5175 case "$canonical" in
5176 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x400000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
5177 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
5181 *) LD_SWITCH_SYSTEM_TEMACS= ;;
5184 # -no-pie or -nopie fixes a temacs segfault on Gentoo, OpenBSD,
5185 # Ubuntu, and other systems with "hardened" GCC configurations for
5186 # some reason (Bug#18784). We don't know why this works, but not
5187 # segfaulting is better than segfaulting. Use ac_c_werror_flag=yes
5188 # when trying the option, otherwise clang keeps warning that it does
5189 # not understand it, and pre-4.6 GCC has a similar problem
5190 # (Bug#20338). Prefer -no-pie to -nopie, as -no-pie is the
5191 # spelling used by GCC 6.1.0 and later (Bug#24682).
5193 [for $CC option to disable position independent executables],
5194 [emacs_cv_prog_cc_no_pie],
5195 [emacs_save_c_werror_flag=$ac_c_werror_flag
5196 emacs_save_LDFLAGS=$LDFLAGS
5197 ac_c_werror_flag=yes
5198 for emacs_cv_prog_cc_no_pie in -no-pie -nopie no; do
5199 test $emacs_cv_prog_cc_no_pie = no && break
5200 LDFLAGS="$emacs_save_LDFLAGS $emacs_cv_prog_cc_no_pie"
5201 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], [break])
5203 ac_c_werror_flag=$emacs_save_c_werror_flag
5204 LDFLAGS=$emacs_save_LDFLAGS])
5205 if test "$emacs_cv_prog_cc_no_pie" != no; then
5206 LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS $emacs_cv_prog_cc_no_pie"
5209 if test x$ac_enable_profiling != x ; then
5211 *freebsd | gnu-linux) ;;
5212 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
5216 LD_SWITCH_SYSTEM_TEMACS="$LDFLAGS_NOCOMBRELOC $LD_SWITCH_SYSTEM_TEMACS"
5218 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
5220 ## Common for all window systems
5221 if test "$window_system" != "none"; then
5222 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
5223 AC_DEFINE(POLL_FOR_INPUT, 1, [Define if you poll periodically to detect C-g.])
5224 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
5227 AC_SUBST(WINDOW_SYSTEM_OBJ)
5229 AH_TOP([/* GNU Emacs site configuration template file.
5231 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2017
5232 Free Software Foundation, Inc.
5234 This file is part of GNU Emacs.
5236 GNU Emacs is free software: you can redistribute it and/or modify
5237 it under the terms of the GNU General Public License as published by
5238 the Free Software Foundation, either version 3 of the License, or (at
5239 your option) any later version.
5241 GNU Emacs is distributed in the hope that it will be useful,
5242 but WITHOUT ANY WARRANTY; without even the implied warranty of
5243 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
5244 GNU General Public License for more details.
5246 You should have received a copy of the GNU General Public License
5247 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
5250 /* No code in Emacs #includes config.h twice, but some bits of code
5251 intended to work with other packages as well (like gmalloc.c)
5252 think they can include it as many times as they like. */
5253 #ifndef EMACS_CONFIG_H
5254 #define EMACS_CONFIG_H
5257 AH_BOTTOM([#include <conf_post.h>
5259 #endif /* EMACS_CONFIG_H */
5268 #### Report on what we decided to do.
5269 #### Report GTK as a toolkit, even if it doesn't use Xt.
5270 #### It makes printing result more understandable as using GTK sets
5271 #### toolkit_scroll_bars to yes by default.
5272 if test "${HAVE_GTK}" = "yes"; then
5273 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
5276 if test $USE_ACL -ne 0; then
5277 ACL_SUMMARY="yes $LIB_ACL"
5282 emacs_standard_dirs='Standard dirs'
5284 Configured for '${canonical}'.
5286 Where should the build process find the source code? ${srcdir}
5287 What compiler should emacs be built with? ${CC} ${CFLAGS}
5288 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
5289 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
5290 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
5291 What window system should Emacs use? ${window_system}
5292 What toolkit should Emacs use? ${USE_X_TOOLKIT}
5293 Where do we find X Windows header files? ${x_includes:-$emacs_standard_dirs}
5294 Where do we find X Windows libraries? ${x_libraries:-$emacs_standard_dirs}"])
5297 emacs_config_features=
5298 for opt in XAW3D XPM JPEG TIFF GIF PNG RSVG CAIRO IMAGEMAGICK SOUND GPM DBUS \
5299 GCONF GSETTINGS NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT \
5300 LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS X_TOOLKIT X11 NS MODULES \
5301 XWIDGETS LIBSYSTEMD CANNOT_DUMP; do
5304 CANNOT_DUMP) eval val=\${$opt} ;;
5305 NOTIFY|ACL) eval val=\${${opt}_SUMMARY} ;;
5306 TOOLKIT_SCROLL_BARS|X_TOOLKIT) eval val=\${USE_$opt} ;;
5307 *) eval val=\${HAVE_$opt} ;;
5310 xno|xnone|x) continue ;;
5315 GTK*|LUCID|MOTIF) opt=$val ;;
5320 AS_VAR_APPEND([emacs_config_features], ["$optsep$opt"])
5323 AC_DEFINE_UNQUOTED(EMACS_CONFIG_FEATURES, "${emacs_config_features}",
5324 [Summary of some of the main features enabled by configure.])
5326 AS_ECHO([" Does Emacs use -lXaw3d? ${HAVE_XAW3D}
5327 Does Emacs use -lXpm? ${HAVE_XPM}
5328 Does Emacs use -ljpeg? ${HAVE_JPEG}
5329 Does Emacs use -ltiff? ${HAVE_TIFF}
5330 Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF
5331 Does Emacs use a png library? ${HAVE_PNG} $LIBPNG
5332 Does Emacs use -lrsvg-2? ${HAVE_RSVG}
5333 Does Emacs use cairo? ${HAVE_CAIRO}
5334 Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}
5335 Does Emacs support sound? ${HAVE_SOUND}
5336 Does Emacs use -lgpm? ${HAVE_GPM}
5337 Does Emacs use -ldbus? ${HAVE_DBUS}
5338 Does Emacs use -lgconf? ${HAVE_GCONF}
5339 Does Emacs use GSettings? ${HAVE_GSETTINGS}
5340 Does Emacs use a file notification library? ${NOTIFY_SUMMARY}
5341 Does Emacs use access control lists? ${ACL_SUMMARY}
5342 Does Emacs use -lselinux? ${HAVE_LIBSELINUX}
5343 Does Emacs use -lgnutls? ${HAVE_GNUTLS}
5344 Does Emacs use -lxml2? ${HAVE_LIBXML2}
5345 Does Emacs use -lfreetype? ${HAVE_FREETYPE}
5346 Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}
5347 Does Emacs use -lotf? ${HAVE_LIBOTF}
5348 Does Emacs use -lxft? ${HAVE_XFT}
5349 Does Emacs use -lsystemd? ${HAVE_LIBSYSTEMD}
5350 Does Emacs directly use zlib? ${HAVE_ZLIB}
5351 Does Emacs have dynamic modules support? ${HAVE_MODULES}
5352 Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}
5353 Does Emacs support Xwidgets (requires gtk3)? ${HAVE_XWIDGETS}
5354 Does Emacs have threading support in lisp? ${threads_enabled}
5357 if test -n "${EMACSDATA}"; then
5358 AS_ECHO([" Environment variable EMACSDATA set to: $EMACSDATA"])
5360 if test -n "${EMACSDOC}"; then
5361 AS_ECHO([" Environment variable EMACSDOC set to: $EMACSDOC"])
5366 if test "$HAVE_NS" = "yes"; then
5368 AS_ECHO(["You must run \"${MAKE-make} install\" in order to test the built application.
5369 The installed application will go to nextstep/Emacs.app and can be
5370 run or moved from there."])
5371 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
5372 echo "The application will be fully self-contained."
5374 AS_ECHO(["The lisp resources for the application will be installed under ${prefix}.
5375 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
5376 to run if these resources are not installed."])
5381 if test "${opsys}" = "cygwin"; then
5383 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
5389 # Remove any trailing slashes in these variables.
5391 */) prefix=`AS_DIRNAME(["$prefix."])`;;
5393 case $exec_prefix in
5394 */) exec_prefix=`AS_DIRNAME(["$exec_prefix."])`;;
5397 if test "$HAVE_NS" = "yes"; then
5398 if test "$NS_IMPL_GNUSTEP" = yes; then
5399 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
5400 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
5401 ns_check_file=Resources/Info-gnustep.plist
5403 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
5404 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
5405 ns_check_file=Contents/Info.plist
5407 AC_SUBST(ns_check_file)
5410 AC_CONFIG_FILES([Makefile lib/gnulib.mk])
5412 dnl config.status treats $srcdir specially, so I think this is ok...
5413 AC_CONFIG_FILES([$srcdir/doc/man/emacs.1])
5415 m4_define([subdir_makefiles],
5416 [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])
5417 SUBDIR_MAKEFILES="subdir_makefiles"
5418 AC_CONFIG_FILES(subdir_makefiles)
5420 dnl test/ is not present in release tarfiles.
5421 opt_makefile=test/Makefile
5423 if test -f "$srcdir/$opt_makefile.in"; then
5424 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
5425 dnl Again, it's best not to use a variable. Though you can add
5426 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
5427 AC_CONFIG_FILES([test/Makefile])
5431 dnl The admin/ directory used to be excluded from tarfiles.
5432 if test -d $srcdir/admin; then
5433 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES admin/charsets/Makefile admin/unidata/Makefile admin/grammars/Makefile"
5434 AC_CONFIG_FILES([admin/charsets/Makefile])
5435 AC_CONFIG_FILES([admin/unidata/Makefile])
5436 AC_CONFIG_FILES([admin/grammars/Makefile])
5440 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
5442 AC_SUBST(SUBDIR_MAKEFILES_IN)
5444 dnl You might wonder (I did) why epaths.h is generated by running make,
5445 dnl rather than just letting configure generate it from epaths.in.
5446 dnl One reason is that the various paths are not fully expanded (see above);
5447 dnl e.g., gamedir='${localstatedir}/games/emacs'.
5448 dnl Secondly, the GNU Coding standards require that one should be able
5449 dnl to run 'make prefix=/some/where/else' and override the values set
5450 dnl by configure. This also explains the 'move-if-change' test and
5451 dnl the use of force in the 'epaths-force' rule in Makefile.in.
5452 AC_CONFIG_COMMANDS([src/epaths.h], [
5453 if test "${opsys}" = "mingw32"; then
5454 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
5456 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
5457 fi || AC_MSG_ERROR(['src/epaths.h' could not be made.])
5458 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
5460 dnl NB we have to cheat and use the ac_... version because abs_top_srcdir
5461 dnl is not yet set, sigh. Or we could use ../$srcdir/src/.gdbinit,
5463 AC_CONFIG_COMMANDS([src/.gdbinit], [
5464 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
5465 AS_ECHO(["source $ac_abs_top_srcdir/src/.gdbinit"]) > src/.gdbinit
5469 dnl Perhaps this would be better named doc-emacs-emacsver.texi?
5470 dnl See comments for etc-refcards-emacsver.tex.
5471 dnl Since we get a doc/emacs directory generated anyway, for the Makefile,
5472 dnl it is not quite the same. But we are generating in $srcdir.
5473 AC_CONFIG_COMMANDS([doc/emacs/emacsver.texi], [
5474 ${MAKE-make} -s --no-print-directory -C doc/emacs doc-emacsver || \
5475 AC_MSG_ERROR(['doc/emacs/emacsver.texi' could not be made.])
5478 dnl If we give this the more natural name, etc/refcards/emacsver.texi,
5479 dnl then a directory etc/refcards is created in the build directory,
5480 dnl which is probably harmless, but confusing (in out-of-tree builds).
5481 dnl (If we were to generate etc/refcards/Makefile, this might change.)
5482 dnl It is really $srcdir/etc/refcards/emacsver.tex that we generate.
5483 AC_CONFIG_COMMANDS([etc-refcards-emacsver.tex], [
5484 ${MAKE-make} -s MAKEFILE_NAME=do-not-make-Makefile etc-emacsver || \
5485 AC_MSG_ERROR(['etc/refcards/emacsver.tex' could not be made.])
5488 if test $AUTO_DEPEND = yes; then
5489 for dir in $AUTODEPEND_PARENTS; do
5490 AS_MKDIR_P([$dir/deps])
5496 if test ! "$with_mailutils"; then
5497 if test "$with_pop" = yes; then
5498 AC_MSG_WARN([This configuration installs a 'movemail' program
5499 that retrieves POP3 email via only insecure channels.
5500 To omit insecure POP3, you can use '$0 --without-pop'.])
5505 # Don't suggest GNU Mailutils, as it hasn't been ported.
5508 emacs_fix_movemail="use '$0 --with-mailutils'"
5509 case `(movemail --version) 2>/dev/null` in
5511 *) emacs_fix_movemail="install GNU Mailutils
5512 <http://mailutils.org> and $emacs_fix_movemail";;
5514 AC_MSG_NOTICE([You might want to $emacs_fix_movemail.]);;
5518 test "$MAKE" = make || AC_MSG_NOTICE([Now you can run '$MAKE'.])