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 dnl The name of this option is unfortunate. It predates, and has no
511 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
512 dnl Actually, it stops it working.
513 dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
514 AC_ARG_ENABLE(profiling,
515 [AS_HELP_STRING([--enable-profiling],
516 [build emacs with low-level, gprof profiling support.
517 Mainly useful for debugging Emacs itself. May not work on
518 all platforms. Stops profiler.el working.])],
519 [ac_enable_profiling="${enableval}"],[])
520 if test x$ac_enable_profiling != x ; then
521 PROFILING_CFLAGS="-DPROFILING=1 -pg"
525 AC_SUBST(PROFILING_CFLAGS)
527 AC_ARG_ENABLE(autodepend,
528 [AS_HELP_STRING([--enable-autodepend],
529 [automatically generate dependencies to .h-files.
530 Requires gcc, enabled if found.])],
531 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
533 AC_ARG_ENABLE(gtk-deprecation-warnings,
534 [AS_HELP_STRING([--enable-gtk-deprecation-warnings],
535 [Show Gtk+/Gdk deprecation warnings for Gtk+ >= 3.0])],
536 [ac_enable_gtk_deprecation_warnings="${enableval}"],[])
539 AC_ARG_ENABLE([build-details],
540 [AS_HELP_STRING([--disable-build-details],
541 [Make the build more deterministic by omitting host
542 names, time stamps, etc. from the output.])],
543 [test "$enableval" = no && BUILD_DETAILS=--no-build-details])
544 AC_SUBST([BUILD_DETAILS])
546 dnl This used to use changequote, but, apart from 'changequote is evil'
547 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
548 dnl the great gob of text. Thus it's not processed for possible expansion.
549 dnl Just make sure the brackets remain balanced.
551 dnl Since Emacs can't find matching pairs of quotes, boundaries are
552 dnl indicated by comments.
556 ### If you add support for a new configuration, add code to this
557 ### switch statement to recognize your configuration name and select
558 ### the appropriate opsys.
560 ### As far as handling version numbers on operating systems is
561 ### concerned, make sure things will fail in a fixable way. If
562 ### /etc/MACHINES doesn't say anything about version numbers, be
563 ### prepared to handle anything reasonably. If version numbers
564 ### matter, be sure /etc/MACHINES says something about it.
567 case "${canonical}" in
569 ## GNU/Linux and similar ports
584 ## FreeBSD kernel + glibc based userland
595 *-*-openbsd* | *-*-mirbsd* )
599 ## Apple Darwin / macOS
601 case "${canonical}" in
602 *-apple-darwin[0-9].*) unported=yes ;;
603 i[3456]86-* | x86_64-* ) ;;
607 ## FIXME: Find a way to use Fink if available (Bug#11507).
610 ## Chromium Native Client
620 ## HP 9000 series 700 and 800, running HP/UX
624 hppa*-hp-hpux1[1-9]* )
626 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
630 rs6000-ibm-aix4.[23]* )
633 powerpc-ibm-aix4.[23]* )
636 rs6000-ibm-aix[56]* )
639 powerpc-ibm-aix[5-9]* | powerpc-ibm-aix[1-9][0-9]* )
645 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
646 | x86_64-*-solaris2* | x86_64-*-sunos5*)
647 case "${canonical}" in
649 amd64-*-*|x86_64-*-*) ;;
653 case "${canonical}" in
654 *-sunos5.[1-9][0-9]* | *-solaris2.[1-9][0-9]* )
656 emacs_check_sunpro_c=yes
658 *-sunos5.[1-5]* | *-solaris2.[1-5]* ) unported=yes ;;
659 ## Note that Emacs 23.1's NEWS said the following would be dropped.
660 *-sunos5.6* | *-solaris2.6* )
664 ## 5.7 EOL Aug 2008, 5.8 EOL Mar 2012.
665 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
667 emacs_check_sunpro_c=yes
670 ## Watch out for a compiler that we know will not work.
671 case "${canonical}" in
672 *-solaris* | *-sunos5* )
673 if [ "x$CC" = x/usr/ucb/cc ]; then
674 ## /usr/ucb/cc doesn't work;
675 ## we should find some other compiler that does work.
683 ## Intel 386 machines where we don't care about the manufacturer.
685 case "${canonical}" in
686 *-darwin* ) opsys=darwin ;;
689 # MinGW overrides and adds some system headers in nt/inc.
690 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
692 *-sysv4.2uw* ) opsys=unixware ;;
693 *-sysv5uw* ) opsys=unixware ;;
694 *-sysv5OpenUNIX* ) opsys=unixware ;;
695 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
701 case "${canonical}" in
704 # MinGW overrides and adds some system headers in nt/inc.
705 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
707 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
716 ### If the code above didn't choose an operating system, just choose
717 ### an operating system based on the configuration name. You really
718 ### only want to use this when you have no idea what the right
719 ### operating system is; if you know what operating systems a machine
720 ### runs, it's cleaner to make it explicit in the case statement
722 if test x"${opsys}" = x; then
723 case "${canonical}" in
724 *-gnu* ) opsys=gnu ;;
734 if test $unported = yes; then
735 AC_MSG_ERROR([Emacs does not support '${canonical}' systems.
736 If you think it should, please send a report to ${PACKAGE_BUGREPORT}.
737 Check 'etc/MACHINES' for recognized configuration names.])
740 #### Choose a compiler.
742 dnl Don't bother to test for C89.
743 AC_DEFUN([_AC_PROG_CC_C89], [$2])
745 dnl Sets GCC=yes if using gcc.
746 AC_PROG_CC([gcc cc cl clang "$XCRUN gcc" "$XCRUN clang"])
747 if test -n "$XCRUN"; then
748 AC_CHECK_PROGS(AR, [ar "$XCRUN ar"])
749 test -n "$AR" && export AR
752 dnl Emacs needs C99 or later.
757 if test x$GCC = xyes; then
758 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
761 # Avoid gnulib's tests for -lcrypto, so that there's no static dependency on it.
762 AC_DEFUN([gl_CRYPTO_CHECK])
763 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
764 # as we don't use them.
765 AC_DEFUN([gl_FCNTL_O_FLAGS])
766 # Avoid gnulib's test for pthread_sigmask.
768 for func in $ac_func_list; do
769 test $func = pthread_sigmask || AS_VAR_APPEND([funcs], [" $func"])
772 # Use the system putenv even if it lacks GNU features, as we don't need them,
773 # and the gnulib replacement runs afoul of a FreeBSD 10.1 bug; see Bug#19874.
774 AC_CHECK_FUNCS_ONCE([putenv])
775 AC_DEFUN([gl_FUNC_PUTENV],
776 [test "$ac_cv_func_putenv" = yes || REPLACE_PUTENV=1])
777 # Emacs does not use the wchar or wctype-h modules.
778 AC_DEFUN([gt_TYPE_WINT_T],
779 [GNULIB_OVERRIDES_WINT_T=0
780 AC_SUBST([GNULIB_OVERRIDES_WINT_T])])
782 # Initialize gnulib right after choosing the compiler.
783 dnl Amongst other things, this sets AR and ARFLAGS.
786 if test "$ac_test_CFLAGS" != set; then
787 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
788 # if -g3 works and the user does not specify CFLAGS.
789 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
792 emacs_g3_CFLAGS='-g3';;
794 emacs_g3_CFLAGS='-g3 -O2';;
798 if test -n "$emacs_g3_CFLAGS"; then
799 emacs_save_CFLAGS=$CFLAGS
800 CFLAGS=$emacs_g3_CFLAGS
801 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
802 [emacs_cv_prog_cc_g3],
803 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
804 [emacs_cv_prog_cc_g3=yes],
805 [emacs_cv_prog_cc_g3=no])])
806 if test $emacs_cv_prog_cc_g3 != yes; then
807 CFLAGS=$emacs_save_CFLAGS
809 if test $opsys = mingw32; then
810 CFLAGS="$CFLAGS -gdwarf-2"
817 # No optimization flag was inferred for this non-GCC compiler.
818 # Try -O. This is needed for xlc on AIX; see Bug#14258.
819 emacs_save_CFLAGS=$CFLAGS
820 test -z "$CFLAGS" || CFLAGS="$CFLAGS "
822 AC_CACHE_CHECK([whether $CC accepts -O],
823 [emacs_cv_prog_cc_o],
824 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
825 [emacs_cv_prog_cc_o=yes],
826 [emacs_cv_prog_cc_o=no])])
827 if test $emacs_cv_prog_cc_o != yes; then
828 CFLAGS=$emacs_save_CFLAGS
833 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
834 # ---------------------------------------------------------------------------
835 # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
836 # Otherwise, run RUN-IF-NOT-FOUND.
837 AC_DEFUN([gl_GCC_VERSION_IFELSE],
841 #if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
844 # error "your version of gcc is older than $1.$2"
851 AC_ARG_ENABLE([gcc-warnings],
852 [AS_HELP_STRING([--enable-gcc-warnings@<:@=TYPE@:>@],
853 [control generation of GCC warnings. The TYPE 'yes'
854 means to fail if any warnings are issued; 'warn-only'
855 means issue warnings without failing (default for
856 developer builds); 'no' means disable warnings
857 (default for non-developer builds).])],
860 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
862 gl_gcc_warnings=$enableval],
863 [# By default, use 'warn-only' if it looks like the invoker of 'configure'
864 # is a developer as opposed to a builder. This is most likely true
865 # if GCC is recent enough and there is a .git directory or file;
866 # however, if there is also a .tarball-version file it is probably
867 # just a release imported into Git for patch management.
869 if test -e "$srcdir"/.git && test ! -f "$srcdir"/.tarball-version; then
870 gl_GCC_VERSION_IFELSE([5], [3], [gl_gcc_warnings=warn-only])
873 AC_ARG_ENABLE([check-lisp-object-type],
874 [AS_HELP_STRING([--enable-check-lisp-object-type],
875 [Enable compile-time checks for the Lisp_Object data type,
876 which can catch some bugs during development.
877 The default is "no" if --enable-gcc-warnings is "no".])])
878 if test "${enable_check_lisp_object_type-$gl_gcc_warnings}" != "no"; then
879 AC_DEFINE([CHECK_LISP_OBJECT_TYPE], 1,
880 [Define to enable compile-time checks for the Lisp_Object data type.])
883 # clang is unduly picky about some things.
884 AC_CACHE_CHECK([whether the compiler is clang], [emacs_cv_clang],
891 [emacs_cv_clang=yes],
892 [emacs_cv_clang=no])])
894 # When compiling with GCC, prefer -isystem to -I when including system
895 # include files, to avoid generating useless diagnostics for the files.
896 AS_IF([test $gl_gcc_warnings = no],
899 AS_IF([test "$emacs_cv_clang" = yes],
901 # Turn off some warnings if supported.
902 gl_WARN_ADD([-Wno-switch])
903 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
904 gl_WARN_ADD([-Wno-pointer-sign])
905 gl_WARN_ADD([-Wno-string-plus-int])
906 gl_WARN_ADD([-Wno-unknown-attributes])
911 # This, $nw, is the list of warnings we disable.
914 case $with_x_toolkit in
915 lucid | athena | motif)
916 # Old toolkits mishandle 'const'.
917 nw="$nw -Wwrite-strings"
920 AS_IF([test $gl_gcc_warnings = yes],
921 [gl_WARN_ADD([-Werror], [WERROR_CFLAGS])])
922 AC_SUBST([WERROR_CFLAGS])
924 nw="$nw -Wduplicated-branches" # Too many false alarms
925 nw="$nw -Wformat-overflow=2" # False alarms due to GCC bug 80776
926 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
927 nw="$nw -Woverlength-strings" # Not a problem these days
928 nw="$nw -Wformat-nonliteral" # we do this a lot
929 nw="$nw -Wvla" # Emacs uses <vla.h>.
930 nw="$nw -Wswitch-default" # Too many warnings for now
931 nw="$nw -Wunused-const-variable=2" # lisp.h declares const objects.
932 nw="$nw -Winline" # OK to ignore 'inline'
933 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
934 # signed overflow has undefined behavior
935 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
936 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
937 nw="$nw -Wbad-function-cast" # These casts are no worse than others.
939 # Emacs doesn't care about shadowing; see
940 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
943 # Emacs's use of alloca inhibits protecting the stack.
944 nw="$nw -Wstack-protector"
946 # Emacs's use of partly-const functions such as Fgnutls_available_p
947 # make this option problematic.
948 nw="$nw -Wsuggest-attribute=const"
950 # Emacs's use of partly-pure functions such as CHECK_TYPE make this
951 # option problematic.
952 nw="$nw -Wsuggest-attribute=pure"
954 # This part is merely for shortening the command line,
955 # since -Wall implies -Wswitch.
958 # This part is merely for shortening the command line,
959 # since -Wno-FOO needs to be added below regardless.
960 nw="$nw -Wmissing-field-initializers"
961 nw="$nw -Wtype-limits"
962 nw="$nw -Wunused-parameter"
964 if test $emacs_cv_clang = yes; then
965 nw="$nw -Wcast-align"
968 # This causes too much noise in the MinGW build
969 if test $opsys = mingw32; then
970 nw="$nw -Wpointer-sign"
973 gl_MANYWARN_ALL_GCC([ws])
974 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
978 gl_WARN_ADD([-Wredundant-decls]) # Prefer this, as we don't use Bison.
979 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
980 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
981 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
982 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
983 gl_WARN_ADD([-Wno-format-nonliteral])
985 # More things that clang is unduly picky about.
986 if test $emacs_cv_clang = yes; then
987 gl_WARN_ADD([-Wno-tautological-compare])
988 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
991 # This causes too much noise in the MinGW build
992 if test $opsys = mingw32; then
993 gl_WARN_ADD([-Wno-pointer-sign])
996 AC_DEFINE([GCC_LINT], [1], [Define to 1 if --enable-gcc-warnings.])
997 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
998 AH_VERBATIM([GNULIB_PORTCHECK_FORTIFY_SOURCE],
999 [/* Enable compile-time and run-time bounds-checking, and some warnings,
1000 without upsetting glibc 2.15+. */
1001 #if (defined GNULIB_PORTCHECK && !defined _FORTIFY_SOURCE \
1002 && defined __OPTIMIZE__ && __OPTIMIZE__)
1003 # define _FORTIFY_SOURCE 2
1007 # We use a slightly smaller set of warning options for lib/.
1008 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
1010 nw="$nw -Wunused-macros"
1012 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
1013 AC_SUBST([GNULIB_WARN_CFLAGS])
1023 AC_ARG_ENABLE(link-time-optimization,
1024 [AS_HELP_STRING([--enable-link-time-optimization],
1025 [build emacs with link-time optimization.
1026 This requires GCC 4.5.0 or later, or clang.
1027 (Note that clang support is experimental - see INSTALL.)
1028 It also makes Emacs harder to debug, and when we tried it
1029 with GCC 4.9.0 x86-64 it made Emacs slower, so it's not
1030 recommended for typical use.])],
1031 if test "${enableval}" != "no"; then
1033 if test $emacs_cv_clang = yes; then
1034 AC_MSG_CHECKING([whether link-time optimization is supported by clang])
1035 GOLD_PLUGIN=`$CC -print-file-name=LLVMgold.so 2>/dev/null`
1036 if test -x "$GOLD_PLUGIN"; then
1039 elif test x$GCC = xyes; then
1040 AC_MSG_CHECKING([whether link-time optimization is supported by gcc])
1041 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
1042 if test x$CPUS != x; then
1048 AC_MSG_ERROR([Link-time optimization is not supported with your compiler.])
1050 if test -z "$LTO"; then
1054 CFLAGS="$CFLAGS $LTO"
1055 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1056 [ac_lto_supported=yes], [ac_lto_supported=no])
1057 CFLAGS="$old_CFLAGS"
1059 AC_MSG_RESULT([$ac_lto_supported])
1060 if test "$ac_lto_supported" = "yes"; then
1061 CFLAGS="$CFLAGS $LTO"
1062 if test x$emacs_cv_clang = xyes; then
1063 AC_MSG_WARN([Please read INSTALL before using link-time optimization with clang])
1064 # WARNING: 'ar --plugin ...' doesn't work without
1065 # command, so plugin name is appended to ARFLAGS.
1066 ARFLAGS="cru --plugin $GOLD_PLUGIN"
1067 RANLIB="$RANLIB --plugin $GOLD_PLUGIN"
1069 dnl The following is needed for GCC 4.9.0. The GCC 4.9.0 release notes
1070 dnl suggest that instead of -ffat-lto-objects we should use gcc-ar and
1071 dnl gcc-ranlib in place of ar and ranlib, but gcc-ar makes /usr/bin/ar
1072 dnl dump core on Fedora 20, so play it safe for now.
1073 gl_COMPILER_OPTION_IF([-ffat-lto-objects],
1074 [CFLAGS="$CFLAGS -ffat-lto-objects"])
1080 dnl Automake replacements.
1081 AC_DEFUN([AM_CONDITIONAL],
1085 dnl Prefer silent make output. For verbose output, use
1086 dnl 'configure --disable-silent-rules' or 'make V=1' .
1087 dnl This code is adapted from Automake.
1088 dnl Although it can be simplified now that GNU Make is assumed,
1089 dnl the simplification hasn't been done yet.
1090 AC_ARG_ENABLE([silent-rules],
1092 [--disable-silent-rules],
1093 [verbose build output (undo: "make V=0")])])
1094 if test "$enable_silent_rules" = no; then
1095 AM_DEFAULT_VERBOSITY=1
1097 AM_DEFAULT_VERBOSITY=0
1100 AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
1102 AC_SUBST([AM_DEFAULT_V])
1103 AC_SUBST([AM_DEFAULT_VERBOSITY])
1105 dnl Some other nice autoconf tests.
1107 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
1109 dnl if test "x$RANLIB" = x; then
1114 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
1115 dnl can be made to directories. This is not relevant for our usage, and
1116 dnl excludes some cases that work fine for us. Eg MS Windows or files
1117 dnl hosted on AFS, both examples where simple links work, but links to
1118 dnl directories fail. We use a cut-down version instead.
1121 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
1122 rm -f conf$$ conf$$.file
1124 LN_S_FILEONLY='cp -p'
1126 dnl On MinGW, ensure we will call the MSYS /bin/ln.exe, not some
1127 dnl random program in the current directory.
1128 if (echo >conf$$.file) 2>/dev/null; then
1129 if ln -s conf$$.file conf$$ 2>/dev/null; then
1130 if test "$opsys" = "mingw32"; then
1131 LN_S_FILEONLY='/bin/ln -s'
1133 LN_S_FILEONLY='ln -s'
1135 elif ln conf$$.file conf$$ 2>/dev/null; then
1136 if test "$opsys" = "mingw32"; then
1137 LN_S_FILEONLY=/bin/ln
1144 rm -f conf$$ conf$$.file
1146 if test "$LN_S_FILEONLY" = "ln -s"; then
1147 AC_MSG_RESULT([yes])
1149 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
1152 AC_SUBST(LN_S_FILEONLY)
1155 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
1156 dnl doesn't support links to directories, as in "ln file dir". But that
1157 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
1158 dnl executables at "make install" time.
1159 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
1160 dnl for more details.
1161 if test "$opsys" = "mingw32"; then
1165 dnl On some Debian versions, "install-info" prints irritating messages
1166 dnl "This is not dpkg install-info anymore, but GNU install-info"
1167 dnl if called via an absolute file name.
1168 dnl Use the entirely-identical-but-quieter ginstall-info instead if present.
1169 dnl Sadly some people may have an old ginstall-info installed on
1170 dnl non-Debian systems, so we can't use this.
1171 dnl AC_PATH_PROGS(INSTALL_INFO, [ginstall-info install-info], :,
1172 dnl $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1174 AC_PATH_PROG(INSTALL_INFO, install-info, :,
1175 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1176 dnl Don't use GZIP, which is used by gzip for additional parameters.
1177 AC_PATH_PROG(GZIP_PROG, gzip)
1179 test $with_compress_install != yes && test -n "$GZIP_PROG" && \
1180 GZIP_PROG=" # $GZIP_PROG # (disabled by configure --without-compress-install)"
1182 AC_CACHE_CHECK([for 'find' args to delete a file],
1183 [emacs_cv_find_delete],
1184 [if touch conftest.tmp && find conftest.tmp -delete 2>/dev/null &&
1185 test ! -f conftest.tmp
1186 then emacs_cv_find_delete="-delete"
1187 else emacs_cv_find_delete="-exec rm -f {} ';'"
1189 FIND_DELETE=$emacs_cv_find_delete
1190 AC_SUBST([FIND_DELETE])
1194 if test $opsys = gnu-linux; then
1195 if test "${SETFATTR+set}" != set; then
1196 AC_CACHE_CHECK([for setfattr],
1197 [emacs_cv_prog_setfattr],
1199 if (setfattr -n user.pax.flags conftest.tmp) >/dev/null 2>&1; then
1200 emacs_cv_prog_setfattr=yes
1202 emacs_cv_prog_setfattr=no
1204 if test "$emacs_cv_prog_setfattr" = yes; then
1205 PAXCTL_notdumped='$(SETFATTR) -n user.pax.flags -v er'
1211 AC_SUBST([SETFATTR])
1214 case $opsys,$PAXCTL_notdumped in
1215 gnu-linux, | netbsd,)
1216 AC_PATH_PROG([PAXCTL], [paxctl], [],
1217 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
1218 if test -n "$PAXCTL"; then
1219 if test "$opsys" = netbsd; then
1220 PAXCTL_dumped='$(PAXCTL) +a'
1221 PAXCTL_notdumped=$PAXCTL_dumped
1223 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
1224 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1225 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then
1226 AC_MSG_RESULT([yes])
1231 if test -n "$PAXCTL"; then
1232 PAXCTL_dumped='$(PAXCTL) -zex'
1233 PAXCTL_notdumped='$(PAXCTL) -r'
1238 AC_SUBST([PAXCTL_dumped])
1239 AC_SUBST([PAXCTL_notdumped])
1241 ## Require makeinfo >= 4.13 (last of the 4.x series) to build the manuals.
1242 if test "${MAKEINFO:=makeinfo}" != "no"; then
1243 case `($MAKEINFO --version) 2>/dev/null` in
1244 *' (GNU texinfo) '4.1[[3-9]]* | \
1245 *' (GNU texinfo) '[[5-9]]* | \
1246 *' (GNU texinfo) '[[1-9][0-9]]* ) ;;
1251 ## Makeinfo is unusual. For a released Emacs, the manuals are
1252 ## pre-built, and not deleted by the normal clean rules. makeinfo is
1253 ## therefore in the category of "special tools" not normally required, which
1254 ## configure does not have to check for (eg autoconf itself).
1255 ## In a repository checkout on the other hand, the manuals are not included.
1256 ## So makeinfo is a requirement to build from the repository, and configure
1257 ## should test for it as it does for any other build requirement.
1258 ## We use the presence of $srcdir/info/emacs to distinguish a release,
1259 ## with pre-built manuals, from a repository checkout.
1262 if test "$MAKEINFO" = "no"; then
1264 if test "x${with_makeinfo}" = "xno"; then
1266 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
1267 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.13, and your
1268 source tree does not seem to have pre-built manuals in the 'info' directory.
1269 Either install a suitable version of makeinfo, or re-run configure
1270 with the '--without-makeinfo' option to build without the manuals.] )
1273 AC_SUBST([MAKEINFO])
1274 AC_SUBST(HAVE_MAKEINFO)
1276 if test $opsys = mingw32; then
1277 DOCMISC_W32=efaq-w32
1281 AC_SUBST(DOCMISC_W32)
1283 dnl Add our options to ac_link now, after it is set up.
1285 if test x$GCC = xyes; then
1286 test "x$GCC_LINK_TEST_OPTIONS" != x && \
1287 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1289 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
1290 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1293 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
1294 dnl If we can link with the flag, it shouldn't do any harm anyhow.
1295 dnl Treat GCC specially since it just gives a non-fatal 'unrecognized option'
1296 dnl if not built to support GNU ld.
1298 dnl For a long time, -znocombreloc was added to LDFLAGS rather than
1299 dnl LD_SWITCH_SYSTEM_TEMACS. That is:
1300 dnl * inappropriate, as LDFLAGS is a user option but this is essential.
1301 dnl Eg "make LDFLAGS=... all" could run into problems,
1302 dnl http://bugs.debian.org/684788
1303 dnl * unnecessary, since temacs is the only thing that actually needs it.
1304 dnl Indeed this is where it was originally, prior to:
1305 dnl http://lists.gnu.org/archive/html/emacs-pretest-bug/2004-03/msg00170.html
1306 late_LDFLAGS="$LDFLAGS"
1307 if test x$GCC = xyes; then
1308 LDFLAGS_NOCOMBRELOC="-Wl,-znocombreloc"
1310 LDFLAGS_NOCOMBRELOC="-znocombreloc"
1313 LDFLAGS="$LDFLAGS $LDFLAGS_NOCOMBRELOC"
1315 AC_MSG_CHECKING([for -znocombreloc])
1316 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1317 [AC_MSG_RESULT(yes)],
1318 LDFLAGS_NOCOMBRELOC=
1319 [AC_MSG_RESULT(no)])
1321 LDFLAGS="$late_LDFLAGS"
1323 AC_CACHE_CHECK([whether addresses are sanitized],
1324 [emacs_cv_sanitize_address],
1327 [[#ifndef __has_feature
1328 #define __has_feature(f) 0
1330 #if defined __SANITIZE_ADDRESS__ || __has_feature (address_sanitizer)
1332 error "Addresses are not sanitized.";
1335 [emacs_cv_sanitize_address=yes],
1336 [emacs_cv_sanitize_address=no])])
1338 dnl The function dump-emacs will not be defined and temacs will do
1339 dnl (load "loadup") automatically unless told otherwise.
1340 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
1342 nacl) CANNOT_DUMP=yes ;;
1345 if test "$CANNOT_DUMP" = "yes"; then
1346 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1347 elif test "$emacs_cv_sanitize_address" = yes; then
1348 AC_MSG_WARN([[Addresses are sanitized; suggest CANNOT_DUMP=yes]])
1351 AC_SUBST(CANNOT_DUMP)
1354 UNEXEC_OBJ=unexelf.o
1356 # MSDOS uses unexcoff.o
1358 UNEXEC_OBJ=unexaix.o
1364 UNEXEC_OBJ=unexmacosx.o
1367 UNEXEC_OBJ=unexhp9k800.o
1370 UNEXEC_OBJ=unexw32.o
1373 # Use the Solaris dldump() function, called from unexsol.c, to dump
1374 # emacs, instead of the generic ELF dump code found in unexelf.c.
1375 # The resulting binary has a complete symbol table, and is better
1376 # for debugging and other observability tools (debuggers, pstack, etc).
1378 # If you encounter a problem using dldump(), please consider sending
1379 # a message to the OpenSolaris tools-linking mailing list:
1380 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1382 # It is likely that dldump() works with older Solaris too, but this has
1383 # not been tested, so for now this change is for Solaris 10 or newer.
1384 UNEXEC_OBJ=unexsol.o
1387 test "$CANNOT_DUMP" = "yes" && UNEXEC_OBJ=
1392 ## Let 'ld' find image libs and similar things in /usr/local/lib.
1393 ## The system compiler, GCC, has apparently been modified to not
1394 ## look there, contrary to what a stock GCC would do.
1395 ### It's not our place to do this. See bug#10313#17.
1396 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1401 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1402 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1406 ### It's not our place to do this. See bug#10313#17.
1407 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1412 ## Han Boetes <han@boetes.org> says this is necessary,
1413 ## otherwise Emacs dumps core on elf systems.
1414 LD_SWITCH_SYSTEM="-Z"
1417 AC_SUBST(LD_SWITCH_SYSTEM)
1419 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1421 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1422 ## which has not been defined yet. When this was handled with cpp,
1423 ## it was expanded to null when configure sourced the s/*.h file.
1424 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1425 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1426 ## (or somesuch), but because it is supposed to go at the _front_
1427 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1428 ## Compare with the gnu-linux case below, which added to the end
1429 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1430 ## LD_SWITCH_SYSTEM_TEMACS.
1433 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1440 AC_CHECK_DECL([__ELF__])
1441 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1442 ## With ELF, make sure that all common symbols get allocated to in the
1443 ## data section. Otherwise, the dump of temacs may miss variables in
1444 ## the shared library that have been initialized. For example, with
1445 ## GNU libc, __malloc_initialized would normally be resolved to the
1446 ## shared library's .bss section, which is fatal.
1447 if test "x$GCC" = "xyes"; then
1448 C_SWITCH_MACHINE="-fno-common"
1450 AC_MSG_ERROR([Non-GCC compilers are not supported.])
1453 dnl This was the unexalpha.c case. Removed in 24.1, 2010-07-24,
1454 dnl albeit under the mistaken assumption that said file
1455 dnl was no longer used.
1456 AC_MSG_ERROR([Non-ELF systems are not supported since Emacs 24.1.])
1460 AC_SUBST(C_SWITCH_MACHINE)
1462 AC_SUBST(UNEXEC_OBJ)
1465 ## Some programs in src produce warnings saying certain subprograms
1466 ## are too complex and need a MAXMEM value greater than 2000 for
1467 ## additional optimization. --nils@exp-math.uni-essen.de
1468 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1469 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1470 if test "$opsys" = "mingw32"; then
1471 case "$canonical" in
1472 x86_64-*-mingw*) C_SWITCH_SYSTEM="-mtune=generic" ;;
1473 *) C_SWITCH_SYSTEM="-mtune=pentium4" ;;
1476 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1477 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1478 AC_SUBST(C_SWITCH_SYSTEM)
1483 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1484 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1486 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1488 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1490 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1492 ## Motif needs -lgen.
1493 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1496 AC_SUBST(LIBS_SYSTEM)
1498 ### Make sure subsequent tests use flags consistent with the build flags.
1500 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1501 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1503 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1506 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C99 or better.
1507 AC_DEFUN([AC_TYPE_SIZE_T])
1508 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1509 AC_DEFUN([AC_TYPE_UID_T])
1511 # sqrt and other floating-point functions such as fmod and frexp
1512 # are found in -lm on many systems.
1514 AC_SEARCH_LIBS([sqrt], [m])
1515 if test "X$LIBS" = "X$OLD_LIBS"; then
1518 LIB_MATH=$ac_cv_search_sqrt
1522 dnl Current possibilities handled by sed (aix4-2 -> aix,
1523 dnl gnu-linux -> gnu/linux, etc.):
1524 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux.
1525 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1526 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1533 ## Adding -lm confuses the dynamic linker, so omit it.
1536 freebsd | dragonfly )
1537 SYSTEM_TYPE=berkeley-unix
1539 gnu-linux | gnu-kfreebsd )
1541 hpux10-20 | hpux11 )
1545 SYSTEM_TYPE=windows-nt
1547 dnl NB this may be adjusted below.
1549 SYSTEM_TYPE=berkeley-unix
1553 SYSTEM_TYPE=usg-unix-v
1559 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1560 [The type of system you are compiling for; sets 'system-type'.])
1561 AC_SUBST([SYSTEM_TYPE])
1564 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1565 pre_PKG_CONFIG_LIBS=$LIBS
1567 PKG_PROG_PKG_CONFIG(0.9.0)
1569 dnl EMACS_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4)
1570 dnl acts like PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4,
1571 dnl HAVE_GSTUFF=yes, HAVE_GSTUFF=no) -- see pkg-config man page --
1572 dnl except that it postprocesses CFLAGS as needed for --enable-gcc-warnings.
1573 dnl EMACS_CHECK_MODULES accepts optional 3rd and 4th arguments that
1574 dnl can take the place of the default HAVE_GSTUFF=yes and HAVE_GSTUFF=no
1576 AC_DEFUN([EMACS_CHECK_MODULES],
1577 [PKG_CHECK_MODULES([$1], [$2],
1578 [$1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1579 m4_default([$3], [HAVE_$1=yes])],
1580 [m4_default([$4], [HAVE_$1=no])])])
1583 if test "${with_sound}" != "no"; then
1584 # Sound support for GNU/Linux, the free BSDs, MinGW, and Cygwin.
1585 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h mmsystem.h],
1586 have_sound_header=yes, [], [
1588 #define WIN32_LEAN_AND_MEAN
1589 #include <windows.h>
1592 test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
1593 AC_MSG_ERROR([OSS sound support requested but not found.])
1595 if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
1596 # Emulation library used on NetBSD.
1597 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1598 test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
1599 AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
1600 dnl FIXME? If we did find ossaudio, should we set with_sound=bsd-ossaudio?
1601 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1605 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1607 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1608 EMACS_CHECK_MODULES([ALSA], [$ALSA_MODULES])
1609 if test $HAVE_ALSA = yes; then
1610 SAVE_CFLAGS="$CFLAGS"
1612 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1613 LIBS="$ALSA_LIBS $LIBS"
1614 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1615 emacs_alsa_normal=yes,
1616 emacs_alsa_normal=no)
1617 if test "$emacs_alsa_normal" != yes; then
1618 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1619 [[snd_lib_error_set_handler (0);]])],
1620 emacs_alsa_subdir=yes,
1621 emacs_alsa_subdir=no)
1622 if test "$emacs_alsa_subdir" != yes; then
1623 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1625 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1628 CFLAGS="$SAVE_CFLAGS"
1630 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1631 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1632 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1633 elif test "${with_sound}" = "alsa"; then
1634 AC_MSG_ERROR([ALSA sound support requested but not found.])
1636 fi dnl with_sound = alsa|yes
1638 dnl Define HAVE_SOUND if we have sound support. We know it works and
1639 dnl compiles only on the specified platforms. For others, it
1640 dnl probably doesn't make sense to try.
1641 dnl FIXME So surely we should bypass this whole section if not using
1642 dnl one of these platforms?
1643 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1645 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1646 dnl Adjust the --with-sound help text if you change this.
1647 gnu-linux|freebsd|netbsd|mingw32|cygwin)
1648 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1654 AC_SUBST(CFLAGS_SOUND)
1657 dnl checks for header files
1658 AC_CHECK_HEADERS_ONCE(
1665 sys/utsname.h pwd.h utmp.h util.h sys/prctl.h)
1667 AC_CACHE_CHECK([for ADDR_NO_RANDOMIZE],
1668 [emacs_cv_personality_addr_no_randomize],
1670 [AC_LANG_PROGRAM([[#include <sys/personality.h>]],
1671 [[personality (personality (0xffffffff)
1672 | ADDR_NO_RANDOMIZE)]])],
1673 [emacs_cv_personality_addr_no_randomize=yes],
1674 [emacs_cv_personality_addr_no_randomize=no])])
1675 if test $emacs_cv_personality_addr_no_randomize = yes; then
1676 AC_DEFINE([HAVE_PERSONALITY_ADDR_NO_RANDOMIZE], [1],
1677 [Define to 1 if personality flag ADDR_NO_RANDOMIZE exists.])
1680 # Note that Solaris has sys/sysinfo.h which defines struct
1681 # sysinfo as well. To make sure that we're using GNU/Linux
1682 # sysinfo, we explicitly set one of its fields.
1683 if test "$ac_cv_header_sys_sysinfo_h" = yes; then
1684 AC_MSG_CHECKING([if Linux sysinfo may be used])
1685 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1686 [[struct sysinfo si;
1689 emacs_cv_linux_sysinfo=yes, emacs_cv_linux_sysinfo=no)
1690 AC_MSG_RESULT($emacs_cv_linux_sysinfo)
1691 if test $emacs_cv_linux_sysinfo = yes; then
1692 AC_DEFINE([HAVE_LINUX_SYSINFO], 1, [Define to 1 if you have Linux sysinfo function.])
1693 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1694 [[struct sysinfo si; return si.mem_unit]])],
1695 AC_DEFINE(LINUX_SYSINFO_UNIT, 1,
1696 [Define to 1 if Linux sysinfo sizes are in multiples of mem_unit bytes.]))
1700 dnl On Solaris 8 there's a compilation warning for term.h because
1701 dnl it doesn't define 'bool'.
1702 AC_CHECK_HEADERS(term.h, , , -)
1704 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1706 if test $ac_cv_have_decl_sys_siglist != yes; then
1707 # For Tru64, at least:
1708 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1713 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1714 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1715 #if HAVE_SYS_SOCKET_H
1716 #include <sys/socket.h>
1718 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1719 #if HAVE_SYS_SOCKET_H
1720 #include <sys/socket.h>
1722 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1723 #if HAVE_SYS_SOCKET_H
1724 #include <sys/socket.h>
1727 dnl checks for structure members
1728 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1729 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1730 struct ifreq.ifr_addr,
1731 struct ifreq.ifr_addr.sa_len], , ,
1732 [AC_INCLUDES_DEFAULT
1733 #if HAVE_SYS_SOCKET_H
1734 #include <sys/socket.h>
1740 dnl Check for endianness.
1741 dnl AC_C_BIGENDIAN is done by gnulib.
1743 dnl check for Make feature
1746 AUTODEPEND_PARENTS='lib src'
1747 dnl check if we have GCC and autodepend is on.
1748 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1749 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1750 SAVE_CFLAGS="$CFLAGS"
1751 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1752 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1753 CFLAGS="$SAVE_CFLAGS"
1754 test -f deps.d || ac_enable_autodepend=no
1756 AC_MSG_RESULT([$ac_enable_autodepend])
1757 if test $ac_enable_autodepend = yes; then
1761 AC_SUBST(AUTO_DEPEND)
1763 dnl checks for operating system services
1764 AC_SYS_LONG_FILE_NAMES
1766 #### Choose a window system.
1768 ## We leave window_system equal to none if
1769 ## we end up building without one. Any new window system should
1770 ## set window_system to an appropriate value and add objects to
1771 ## window-system-specific substs.
1775 if test "$no_x" != yes; then
1779 LD_SWITCH_X_SITE_RPATH=
1780 if test "${x_libraries}" != NONE; then
1781 if test -n "${x_libraries}"; then
1782 LD_SWITCH_X_SITE=-L`AS_ECHO(["$x_libraries"]) | sed -e 's/:/ -L/g'`
1783 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`
1784 AS_ECHO(["$x_libraries"]) | sed -e 's/:/ -Wl,-rpath,/g'
1787 x_default_search_path=""
1788 x_search_path=${x_libraries}
1789 if test -z "${x_search_path}"; then
1790 x_search_path=/usr/lib
1792 for x_library in `AS_ECHO(["$x_search_path:"]) | \
1793 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1795 ${x_library}/X11/%L/%T/%N%C%S:\
1796 ${x_library}/X11/%l/%T/%N%C%S:\
1797 ${x_library}/X11/%T/%N%C%S:\
1798 ${x_library}/X11/%L/%T/%N%S:\
1799 ${x_library}/X11/%l/%T/%N%S:\
1800 ${x_library}/X11/%T/%N%S"
1801 if test x"${x_default_search_path}" = x; then
1802 x_default_search_path=${x_search_path}
1804 x_default_search_path="${x_search_path}:${x_default_search_path}"
1808 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1810 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1811 C_SWITCH_X_SITE=$isystem`AS_ECHO(["$x_includes"]) | sed -e "s/:/ $isystem/g"`
1814 if test x"${x_includes}" = x; then
1815 bitmapdir=/usr/include/X11/bitmaps
1817 # accumulate include directories that have X11 bitmap subdirectories
1819 for bmd in `AS_ECHO(["$x_includes"]) | sed -e 's/:/ /g'`; do
1820 if test -d "${bmd}/X11/bitmaps"; then
1821 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1823 if test -d "${bmd}/bitmaps"; then
1824 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1827 bitmapdir=${bmd_acc#:}
1830 test "${with_ns}" = maybe && test "${opsys}" != darwin && with_ns=no
1832 NS_GNUSTEP_CONFIG=no
1835 tmp_CPPFLAGS="$CPPFLAGS"
1836 tmp_CFLAGS="$CFLAGS"
1837 CPPFLAGS="$CPPFLAGS -x objective-c"
1838 CFLAGS="$CFLAGS -x objective-c"
1841 if test "${with_ns}" != no; then
1842 if test "${opsys}" = darwin; then
1844 ns_appdir=`pwd`/nextstep/Emacs.app
1845 ns_appbindir=${ns_appdir}/Contents/MacOS
1846 ns_appresdir=${ns_appdir}/Contents/Resources
1847 ns_appsrc=Cocoa/Emacs.base
1848 ns_fontfile=macfont.o
1849 elif flags=$( (gnustep-config --objc-flags) 2>/dev/null); then
1851 NS_GNUSTEP_CONFIG=yes
1852 GNU_OBJC_CFLAGS=$flags
1853 LIBS_GNUSTEP=$(gnustep-config --gui-libs) || exit
1854 elif test -f $GNUSTEP_CONFIG_FILE; then
1856 dnl FIXME sourcing this several times in subshells seems inefficient.
1857 GNUSTEP_SYSTEM_HEADERS=$(
1858 . $GNUSTEP_CONFIG_FILE
1859 AS_ECHO(["$GNUSTEP_SYSTEM_HEADERS"])
1861 GNUSTEP_SYSTEM_LIBRARIES=$(
1862 . $GNUSTEP_CONFIG_FILE
1863 AS_ECHO(["$GNUSTEP_SYSTEM_LIBRARIES"])
1865 dnl I seemed to need these as well with GNUstep-startup 0.25.
1866 GNUSTEP_LOCAL_HEADERS=$(
1867 . $GNUSTEP_CONFIG_FILE
1868 AS_ECHO(["$GNUSTEP_LOCAL_HEADERS"])
1870 GNUSTEP_LOCAL_LIBRARIES=$(
1871 . $GNUSTEP_CONFIG_FILE
1872 AS_ECHO(["$GNUSTEP_LOCAL_LIBRARIES"])
1874 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1875 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1876 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1877 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1878 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1879 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1880 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1881 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1882 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1883 dnl If they had chosen to either define it or not, we could have
1884 dnl just used AC_CHECK_DECL here.
1885 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1886 emacs_cv_objc_exceptions,
1887 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1888 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1892 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1893 if test $emacs_cv_objc_exceptions = yes; then
1894 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1895 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1896 [Define if GNUstep uses ObjC exceptions.])
1897 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1900 if test $NS_IMPL_GNUSTEP = yes; then
1901 ns_appdir=`pwd`/nextstep/Emacs.app
1902 ns_appbindir=${ns_appdir}
1903 ns_appresdir=${ns_appdir}/Resources
1904 ns_appsrc=GNUstep/Emacs.base
1905 ns_fontfile=nsfont.o
1908 dnl This is only used while we test the NS headers, it gets reset below.
1909 CPPFLAGS="$CPPFLAGS $GNU_OBJC_CFLAGS"
1910 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1912 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1913 [AC_MSG_ERROR([The include files (AppKit/AppKit.h etc) that
1914 are required for a Nextstep build are missing or cannot be compiled.
1915 Either fix this, or re-configure with the option '--without-ns'.])])
1918 if test "${NS_IMPL_COCOA}" = "yes"; then
1919 AC_MSG_CHECKING([for Mac OS X 10.6 or newer])
1920 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1922 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1923 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1060
1926 error "Mac OS X 10.6 or newer required";
1930 ns_osx_have_106=yes,
1932 AC_MSG_RESULT([$ns_osx_have_106])
1934 if test $ns_osx_have_106 = no; then
1935 AC_MSG_ERROR([Mac OS X 10.6 or newer is required]);
1940 AC_SUBST(LIBS_GNUSTEP)
1942 INSTALL_ARCH_INDEP_EXTRA=install-etc
1943 ns_self_contained=no
1946 if test "${HAVE_NS}" = yes; then
1947 if test "$with_toolkit_scroll_bars" = "no"; then
1948 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1951 window_system=nextstep
1952 # set up packaging dirs
1953 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1954 ns_self_contained=yes
1955 prefix=${ns_appresdir}
1956 exec_prefix=${ns_appbindir}
1957 dnl This one isn't really used, only archlibdir is.
1958 libexecdir="\${ns_appbindir}/libexec"
1959 archlibdir="\${ns_appbindir}/libexec"
1960 etcdocdir="\${ns_appresdir}/etc"
1961 etcdir="\${ns_appresdir}/etc"
1962 dnl FIXME maybe set datarootdir instead.
1963 dnl That would also get applications, icons, man.
1964 infodir="\${ns_appresdir}/info"
1965 mandir="\${ns_appresdir}/man"
1966 lispdir="\${ns_appresdir}/lisp"
1967 test "$locallisppathset" = no && locallisppath=""
1968 INSTALL_ARCH_INDEP_EXTRA=
1971 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o $ns_fontfile"
1973 CFLAGS="$tmp_CFLAGS"
1974 CPPFLAGS="$tmp_CPPFLAGS"
1975 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1976 AC_SUBST(ns_self_contained)
1978 AC_SUBST(NS_OBJC_OBJ)
1988 if test "${with_w32}" != no; then
1991 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1992 [AC_MSG_ERROR(['--with-w32' was specified, but windows.h
1993 cannot be found.])])
1996 ## Using --with-w32 with MinGW is a no-op, but we allow it.
1999 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
2004 if test "${opsys}" = "mingw32"; then
2005 AC_MSG_CHECKING([whether Windows API headers are recent enough])
2006 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2007 #include <windows.h>
2008 #include <usp10.h>]],
2009 [[PIMAGE_NT_HEADERS pHeader;
2010 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
2011 [emacs_cv_w32api=yes
2014 AC_MSG_RESULT($emacs_cv_w32api)
2015 if test "${emacs_cv_w32api}" = "no"; then
2016 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
2027 if test "${HAVE_W32}" = "yes"; then
2028 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
2029 if test "$with_toolkit_scroll_bars" = "no"; then
2030 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for w32 build.])
2032 AC_CHECK_TOOL(WINDRES, [windres],
2033 [AC_MSG_ERROR([No resource compiler found.])])
2034 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
2035 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
2036 EMACSRES="emacs.res"
2037 case "$canonical" in
2038 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
2039 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
2041 dnl Construct something of the form "24,4,0,0" with 4 components.
2042 comma_version=`echo "${PACKAGE_VERSION}.0.0" | sed -e 's/\./,/g' -e 's/^\([[^,]]*,[[^,]]*,[[^,]]*,[[^,]]*\).*/\1/'`
2044 comma_space_version=`echo "$comma_version" | sed 's/,/, /g'`
2045 AC_SUBST(comma_version)
2046 AC_SUBST(comma_space_version)
2047 AC_CONFIG_FILES([nt/emacs.rc nt/emacsclient.rc])
2048 if test "${opsys}" = "cygwin"; then
2049 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
2050 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
2051 # Tell the linker that emacs.res is an object (which we compile from
2052 # the rc file), not a linker script.
2053 W32_RES_LINK="-Wl,emacs.res"
2055 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
2056 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
2057 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
2058 W32_RES_LINK="\$(EMACSRES)"
2059 CLIENTRES="emacsclient.res"
2060 CLIENTW="emacsclientw\$(EXEEXT)"
2061 FIRSTFILE_OBJ=firstfile.o
2064 LIBS_ECLIENT="-lcomctl32"
2065 LIB_WSOCK32="-lwsock32"
2066 NTLIB="ntlib.$ac_objext"
2067 XARGS_LIMIT="-s 10000"
2073 AC_SUBST(EMACS_MANIFEST)
2076 AC_SUBST(W32_RES_LINK)
2077 AC_SUBST(FIRSTFILE_OBJ)
2080 AC_SUBST(LIBS_ECLIENT)
2081 AC_SUBST(LIB_WSOCK32)
2083 AC_SUBST(XARGS_LIMIT)
2085 if test "${HAVE_W32}" = "yes"; then
2090 ## $window_system is now set to the window system we will
2098 case "${window_system}" in
2103 case "${with_x_toolkit}" in
2104 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
2105 motif ) USE_X_TOOLKIT=MOTIF ;;
2107 term_header=gtkutil.h
2108 dnl Don't set this for GTK. A lot of tests below assumes Xt when
2109 dnl USE_X_TOOLKIT is set.
2110 USE_X_TOOLKIT=none ;;
2111 gtk2 ) with_gtk2=yes
2112 term_header=gtkutil.h
2113 USE_X_TOOLKIT=none ;;
2114 gtk3 ) with_gtk3=yes
2115 term_header=gtkutil.h
2116 USE_X_TOOLKIT=none ;;
2117 no ) USE_X_TOOLKIT=none ;;
2118 dnl If user did not say whether to use a toolkit, make this decision later:
2119 dnl use the toolkit if we have gtk, or X11R5 or newer.
2120 * ) USE_X_TOOLKIT=maybe ;;
2124 term_header=nsterm.h
2127 term_header=w32term.h
2131 if test "$window_system" = none && test "X$with_x" != "Xno"; then
2132 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
2133 if test "$HAVE_XSERVER" = true ||
2134 test -n "$DISPLAY" ||
2136 for emacs_libX11 in /usr/lib/libX11.*; do break; done
2137 test "$emacs_libX11" != '/usr/lib/libX11.*'
2140 AC_MSG_ERROR([You seem to be running X, but no X development libraries
2141 were found. You should install the relevant development files for X
2142 and for the toolkit you want, such as Gtk+ or Motif. Also make
2143 sure you have development files for image handling, i.e.
2144 tiff, gif, jpeg, png and xpm.
2145 If you are sure you want Emacs compiled without X window support, pass
2151 # Does the opsystem file prohibit the use of the GNU malloc?
2152 # Assume not, until told otherwise.
2156 [whether malloc is Doug Lea style],
2157 [emacs_cv_var_doug_lea_malloc],
2158 [emacs_cv_var_doug_lea_malloc=no
2159 dnl Hooks do not work with address sanitization.
2160 if test "$emacs_cv_sanitize_address" != yes; then
2163 [[#include <malloc.h>
2164 static void hook (void) {}]],
2165 [[malloc_set_state (malloc_get_state ());
2166 __after_morecore_hook = hook;
2167 __malloc_initialize_hook = hook;]])],
2168 [emacs_cv_var_doug_lea_malloc=yes])
2170 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
2175 test "$CANNOT_DUMP" = yes ||
2177 ## darwin ld insists on the use of malloc routines in the System framework.
2178 darwin | mingw32 | nacl | sol2-10) ;;
2179 cygwin) hybrid_malloc=yes
2181 *) test "$ac_cv_func_sbrk" = yes && system_malloc=$emacs_cv_sanitize_address;;
2184 if test "${system_malloc}" != yes && test "${doug_lea_malloc}" != yes \
2185 && test "${UNEXEC_OBJ}" = unexelf.o; then
2191 if test "${system_malloc}" = "yes"; then
2192 AC_DEFINE([SYSTEM_MALLOC], 1,
2193 [Define to 1 to use the system memory allocator, even if it is not
2197 (The GNU allocators don't work with this system configuration.)"
2199 elif test "$hybrid_malloc" = yes; then
2200 AC_DEFINE(HYBRID_MALLOC, 1,
2201 [Define to use gmalloc before dumping and the system malloc after.])
2204 GNU_MALLOC_reason=" (only before dumping)"
2205 GMALLOC_OBJ=gmalloc.o
2208 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
2209 VMLIMIT_OBJ=vm-limit.o
2211 AC_CHECK_HEADERS([sys/vlimit.h])
2212 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
2215 [[extern char data_start[]; char ch;]],
2216 [[return data_start < &ch;]])],
2217 [emacs_cv_data_start=yes],
2218 [emacs_cv_data_start=no])])
2219 if test $emacs_cv_data_start = yes; then
2220 AC_DEFINE([HAVE_DATA_START], 1,
2221 [Define to 1 if data_start is the address of the start
2222 of the main data segment.])
2225 AC_SUBST([HYBRID_MALLOC])
2226 AC_SUBST(GMALLOC_OBJ)
2227 AC_SUBST(VMLIMIT_OBJ)
2229 if test "$doug_lea_malloc" = "yes" && test "$hybrid_malloc" != yes; then
2230 if test "$GNU_MALLOC" = yes ; then
2232 (Using Doug Lea's new malloc from the GNU C Library.)"
2234 AC_DEFINE(DOUG_LEA_MALLOC, 1,
2235 [Define to 1 if the system memory allocator is Doug Lea style,
2236 with malloc hooks and malloc_set_state.])
2238 ## Use mmap directly for allocating larger buffers.
2239 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
2240 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
2241 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
2243 mingw32|gnu*) REL_ALLOC=no ;;
2247 if test x"${REL_ALLOC}" = x; then
2248 REL_ALLOC=${GNU_MALLOC}
2251 use_mmap_for_buffers=no
2253 mingw32) use_mmap_for_buffers=yes ;;
2257 if test $use_mmap_for_buffers = yes; then
2258 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
2262 LIBS="$LIBS_SYSTEM $LIBS"
2264 dnl FIXME replace main with a function we actually want from this library.
2265 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
2267 dnl Check for the POSIX thread library.
2269 AC_CHECK_HEADERS_ONCE(pthread.h)
2270 if test "$ac_cv_header_pthread_h" && test "$opsys" != "mingw32"; then
2271 AC_CACHE_CHECK([for pthread library],
2272 [emacs_cv_pthread_lib],
2273 [emacs_cv_pthread_lib=no
2275 for emacs_pthread_lib in 'none needed' -lpthread; do
2276 case $emacs_pthread_lib in
2277 -*) LIBS="$OLD_LIBS $emacs_pthread_lib";;
2281 [[#include <pthread.h>
2283 sigset_t old_mask, new_mask;
2284 void noop (void) {}]],
2285 [[pthread_t th = pthread_self ();
2287 status += pthread_create (&th, 0, 0, 0);
2288 status += pthread_sigmask (SIG_BLOCK, &new_mask, &old_mask);
2289 status += pthread_kill (th, 0);
2290 #if ! (defined SYSTEM_MALLOC || defined HYBRID_MALLOC \
2291 || defined DOUG_LEA_MALLOC)
2292 /* Test for pthread_atfork only if gmalloc uses it,
2293 as older-style hosts like MirBSD 10 lack it. */
2294 status += pthread_atfork (noop, noop, noop);
2297 [emacs_cv_pthread_lib=$emacs_pthread_lib])
2299 if test "$emacs_cv_pthread_lib" != no; then
2303 if test "$emacs_cv_pthread_lib" != no; then
2304 AC_DEFINE([HAVE_PTHREAD], 1, [Define to 1 if you have POSIX threads.])
2305 case $emacs_cv_pthread_lib in
2306 -*) LIB_PTHREAD=$emacs_cv_pthread_lib;;
2308 ac_cv_func_pthread_sigmask=yes
2309 # Some systems optimize for single-threaded programs by default, and
2310 # need special flags to disable these optimizations. For example, the
2311 # definition of 'errno' in <errno.h>.
2314 AC_DEFINE([_REENTRANT], 1,
2315 [Define to 1 if your system requires this in multithreaded code.]);;
2317 AC_DEFINE([_THREAD_SAFE], 1,
2318 [Define to 1 if your system requires this in multithreaded code.]);;
2322 AC_SUBST([LIB_PTHREAD])
2324 AC_MSG_CHECKING([for thread support])
2326 if test "$with_threads" = yes; then
2327 if test "$emacs_cv_pthread_lib" != no; then
2328 AC_DEFINE(THREADS_ENABLED, 1,
2329 [Define to 1 if you want elisp thread support.])
2331 elif test "${opsys}" = "mingw32"; then
2332 dnl MinGW can do native Windows threads even without pthreads
2333 AC_DEFINE(THREADS_ENABLED, 1,
2334 [Define to 1 if you want elisp thread support.])
2338 AC_MSG_RESULT([$threads_enabled])
2340 dnl Check for need for bigtoc support on IBM AIX
2344 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
2346 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
2347 *) gdb_cv_bigtoc=-bbigtoc ;;
2350 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
2351 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
2356 # Change CFLAGS, CPPFLAGS, and LIBS temporarily so that C_SWITCH_X_SITE
2357 # is for the tests that follow. We set them back later on.
2359 REAL_CFLAGS="$CFLAGS"
2360 REAL_CPPFLAGS="$CPPFLAGS"
2363 if test "${HAVE_X11}" = "yes"; then
2364 DEFS="$C_SWITCH_X_SITE $DEFS"
2365 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2367 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2368 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2370 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2371 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2372 # but it's more convenient here to set LD_RUN_PATH since this
2373 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2374 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2375 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2379 if test "${opsys}" = "gnu-linux"; then
2380 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2381 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2382 [[XOpenDisplay ("foo");]])],
2383 [xgnu_linux_first_failure=no],
2384 [xgnu_linux_first_failure=yes])
2385 if test "${xgnu_linux_first_failure}" = "yes"; then
2386 OLD_CPPFLAGS="$CPPFLAGS"
2388 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2389 LIBS="$LIBS -b i486-linuxaout"
2390 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2391 [[XOpenDisplay ("foo");]])],
2392 [xgnu_linux_second_failure=no],
2393 [xgnu_linux_second_failure=yes])
2394 if test "${xgnu_linux_second_failure}" = "yes"; then
2395 # If we get the same failure with -b, there is no use adding -b.
2396 # So leave it out. This plays safe.
2399 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2400 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2403 CPPFLAGS=$OLD_CPPFLAGS
2410 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2411 # header files included from there.
2412 AC_MSG_CHECKING(for Xkb)
2413 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2414 #include <X11/XKBlib.h>]],
2415 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2416 emacs_xkb=yes, emacs_xkb=no)
2417 AC_MSG_RESULT($emacs_xkb)
2418 if test $emacs_xkb = yes; then
2419 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2422 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2423 XScreenNumberOfScreen)
2426 if test "${window_system}" = "x11"; then
2427 AC_MSG_CHECKING(X11 version 6)
2428 AC_CACHE_VAL(emacs_cv_x11_version_6,
2429 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2430 [[#if XlibSpecificationRelease < 6
2433 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2434 if test $emacs_cv_x11_version_6 = yes; then
2435 AC_MSG_RESULT(6 or newer)
2436 AC_DEFINE(HAVE_X11R6, 1,
2437 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2438 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2439 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2443 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2444 [Define if you have usable X11R6-style XIM support.])
2448 AC_MSG_RESULT(before 6)
2453 ### Use -lrsvg-2 if available, unless '--with-rsvg=no' is specified.
2455 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2456 if test "${with_rsvg}" != "no"; then
2457 RSVG_REQUIRED=2.11.0
2458 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2460 EMACS_CHECK_MODULES([RSVG], [$RSVG_MODULE])
2461 AC_SUBST(RSVG_CFLAGS)
2464 if test $HAVE_RSVG = yes; then
2465 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2466 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2467 # Windows loads librsvg dynamically
2468 if test "${opsys}" = "mingw32"; then
2476 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${HAVE_W32}" = "yes"; then
2477 if test "${with_imagemagick}" != "no"; then
2478 ## 6.3.5 is the earliest version known to work; see Bug#17339.
2479 ## 6.8.2 makes Emacs crash; see Bug#13867.
2480 IMAGEMAGICK_MODULE="Wand >= 6.3.5 Wand != 6.8.2"
2481 EMACS_CHECK_MODULES([IMAGEMAGICK], [$IMAGEMAGICK_MODULE])
2482 AC_SUBST(IMAGEMAGICK_CFLAGS)
2483 AC_SUBST(IMAGEMAGICK_LIBS)
2485 if test $HAVE_IMAGEMAGICK = yes; then
2486 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2489 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2490 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2491 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers MagickAutoOrientImage)
2498 AC_CHECK_LIB(anl, getaddrinfo_a, HAVE_GETADDRINFO_A=yes)
2499 if test "${HAVE_GETADDRINFO_A}" = "yes"; then
2500 AC_DEFINE(HAVE_GETADDRINFO_A, 1,
2501 [Define to 1 if you have getaddrinfo_a for asynchronous DNS resolution.])
2502 GETADDRINFO_A_LIBS="-lanl"
2503 AC_SUBST(GETADDRINFO_A_LIBS)
2508 gtk_term_header=$term_header
2511 if test "${opsys}" != "mingw32"; then
2512 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2515 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2517 dnl Checks for libraries.
2518 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2519 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2520 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2521 AC_MSG_ERROR($GTK_PKG_ERRORS)
2523 if test "$pkg_check_gtk" = "yes"; then
2524 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2525 GTK_OBJ=emacsgtkfixed.o
2526 gtk_term_header=gtkutil.h
2527 USE_GTK_TOOLKIT="GTK3"
2528 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2529 AC_DEFINE([GDK_DISABLE_DEPRECATION_WARNINGS], [1],
2530 [Define to 1 to disable GTK+/GDK deprecation warnings.])
2531 AC_DEFINE([GLIB_DISABLE_DEPRECATION_WARNINGS], [1],
2532 [Define to 1 to disable Glib deprecation warnings.])
2536 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2540 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2543 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2545 dnl Checks for libraries.
2546 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2547 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2548 if test "$pkg_check_gtk" = "no" &&
2549 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2551 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2553 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2560 if test x"$pkg_check_gtk" = xyes; then
2563 CFLAGS="$CFLAGS $GTK_CFLAGS"
2564 LIBS="$GTK_LIBS $LIBS"
2565 dnl Try to compile a simple GTK program.
2566 AC_MSG_CHECKING([whether GTK compiles])
2570 [[/* Check the Gtk and Glib APIs. */
2571 #include <gtk/gtk.h>
2572 #include <glib-object.h>
2574 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2578 GtkSettings *gs = 0;
2579 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2580 strict C prohibits this. Use gtk_main_iteration to test that the
2581 libraries are there. */
2582 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2583 0, 0, 0, G_CALLBACK (callback), 0))
2584 gtk_main_iteration ();
2587 AC_MSG_RESULT([$GTK_COMPILES])
2588 if test "${GTK_COMPILES}" != "yes"; then
2590 if test "$USE_X_TOOLKIT" != "maybe"; then
2591 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2594 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2596 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2597 GTK_OBJ="gtkutil.o $GTK_OBJ"
2598 term_header=$gtk_term_header
2600 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2601 closing open displays. This is no problem if you just use
2602 one display, but if you use more than one and close one of them
2604 See http://bugzilla.gnome.org/show_bug.cgi?id=85715]])
2612 if test "${HAVE_GTK}" = "yes"; then
2614 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2615 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2616 if test "$with_toolkit_scroll_bars" != no; then
2617 with_toolkit_scroll_bars=yes
2620 dnl Check if we have the old file selection dialog declared and
2621 dnl in the link library. In 2.x it may be in the library,
2622 dnl but not declared if deprecated featured has been selected out.
2623 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2624 HAVE_GTK_FILE_SELECTION=no
2625 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2626 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2627 #include <gtk/gtk.h>])
2628 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2629 AC_CHECK_FUNCS(gtk_file_selection_new)
2632 dnl Same as above for gtk_handle_box.
2633 HAVE_GTK_HANDLE_BOX=no
2634 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2635 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2636 #include <gtk/gtk.h>])
2637 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2638 AC_CHECK_FUNCS(gtk_handle_box_new)
2641 dnl Same as above for gtk_tearoff_menu_item.
2642 HAVE_GTK_TEAROFF_MENU_ITEM=no
2643 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2644 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2645 #include <gtk/gtk.h>])
2646 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2647 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2650 dnl Check for functions introduced in 2.14 and later.
2651 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2652 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2653 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2654 gtk_orientable_set_orientation \
2655 gtk_window_set_has_resize_grip)
2657 term_header=gtkutil.h
2661 dnl Enable xwidgets if GTK3 and WebKitGTK+ are available.
2664 if test "$with_xwidgets" != "no"; then
2665 test "$USE_GTK_TOOLKIT" = "GTK3" && test "$window_system" != "none" ||
2666 AC_MSG_ERROR([xwidgets requested but gtk3 not used.])
2668 WEBKIT_REQUIRED=2.12
2669 WEBKIT_MODULES="webkit2gtk-4.0 >= $WEBKIT_REQUIRED"
2670 EMACS_CHECK_MODULES([WEBKIT], [$WEBKIT_MODULES])
2671 HAVE_XWIDGETS=$HAVE_WEBKIT
2672 test $HAVE_XWIDGETS = yes ||
2673 AC_MSG_ERROR([xwidgets requested but WebKitGTK+ not found.])
2675 XWIDGETS_OBJ=xwidget.o
2676 AC_DEFINE([HAVE_XWIDGETS], 1, [Define to 1 if you have xwidgets support.])
2678 AC_SUBST(XWIDGETS_OBJ)
2683 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2684 dnl other platforms.
2687 if test "${with_dbus}" = "yes"; then
2688 EMACS_CHECK_MODULES([DBUS], [dbus-1 >= 1.0])
2689 if test "$HAVE_DBUS" = yes; then
2690 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2691 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2692 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2695 LIBS="$LIBS $DBUS_LIBS"
2696 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2697 dbus_type_is_valid \
2698 dbus_validate_bus_name \
2699 dbus_validate_path \
2700 dbus_validate_interface \
2701 dbus_validate_member)
2706 AC_SUBST(DBUS_CFLAGS)
2710 dnl GSettings has been tested under GNU/Linux only.
2712 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2713 EMACS_CHECK_MODULES([GSETTINGS], [gio-2.0 >= 2.26])
2714 if test "$HAVE_GSETTINGS" = "yes"; then
2716 CFLAGS="$CFLAGS $GSETTINGS_CFLAGS"
2718 LIBS="$LIBS $GSETTINGS_LIBS"
2719 AC_MSG_CHECKING([whether GSettings is in gio])
2722 [[/* Check that gsettings really is present. */
2723 #include <glib-object.h>
2724 #include <gio/gio.h>
2727 GSettings *settings;
2728 GVariant *val = g_settings_get_value (settings, "");
2730 [], HAVE_GSETTINGS=no)
2731 AC_MSG_RESULT([$HAVE_GSETTINGS])
2733 if test "$HAVE_GSETTINGS" = "yes"; then
2734 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2735 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2736 SETTINGS_LIBS="$GSETTINGS_LIBS"
2743 dnl GConf has been tested under GNU/Linux only.
2744 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2746 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2747 EMACS_CHECK_MODULES([GCONF], [gconf-2.0 >= 2.13])
2748 if test "$HAVE_GCONF" = yes; then
2749 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2750 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2751 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2752 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2756 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2757 EMACS_CHECK_MODULES([GOBJECT], [gobject-2.0 >= 2.0])
2758 if test "$HAVE_GOBJECT" = "yes"; then
2759 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2760 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2762 SAVE_CFLAGS="$CFLAGS"
2764 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2765 LIBS="$SETTINGS_LIBS $LIBS"
2766 CFLAGS="$SAVE_CFLAGS"
2769 AC_SUBST(SETTINGS_CFLAGS)
2770 AC_SUBST(SETTINGS_LIBS)
2773 dnl SELinux is available for GNU/Linux only.
2776 if test "${with_selinux}" = "yes"; then
2777 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2778 if test "$HAVE_LIBSELINUX" = yes; then
2779 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2780 LIBSELINUX_LIBS=-lselinux
2783 AC_SUBST(LIBSELINUX_LIBS)
2786 if test "${with_gnutls}" = "yes" ; then
2787 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.12.2],
2788 [HAVE_GNUTLS=yes], [HAVE_GNUTLS=no])
2789 if test "${HAVE_GNUTLS}" = "yes"; then
2790 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2791 EMACS_CHECK_MODULES([LIBGNUTLS3], [gnutls >= 3.0.0],
2792 [AC_DEFINE(HAVE_GNUTLS3, 1, [Define if using GnuTLS v3.])], [])
2795 # Windows loads GnuTLS dynamically
2796 if test "${opsys}" = "mingw32"; then
2801 AC_SUBST(LIBGNUTLS_LIBS)
2802 AC_SUBST(LIBGNUTLS_CFLAGS)
2805 if test "${with_libsystemd}" = "yes" ; then
2806 dnl This code has been tested with libsystemd 222 and later.
2807 dnl FIXME: Find the earliest version number for which Emacs should work,
2808 dnl and change '222' to that number.
2809 EMACS_CHECK_MODULES([LIBSYSTEMD], [libsystemd >= 222],
2810 [HAVE_LIBSYSTEMD=yes], [HAVE_LIBSYSTEMD=no])
2811 if test "${HAVE_LIBSYSTEMD}" = "yes"; then
2812 AC_DEFINE(HAVE_LIBSYSTEMD, 1, [Define if using libsystemd.])
2816 AC_SUBST(LIBSYSTEMD_LIBS)
2817 AC_SUBST(LIBSYSTEMD_CFLAGS)
2822 dnl MS Windows native file monitor is available for mingw32 only.
2823 case $with_file_notification,$opsys in
2825 AC_MSG_ERROR(['--with-file-notification=w32' was specified, but
2826 this is only supported on MS-Windows native and MinGW32 builds.
2827 Consider using gfile instead.])
2829 w32,* | yes,mingw32)
2830 AC_CHECK_HEADER(windows.h)
2831 if test "$ac_cv_header_windows_h" = yes ; then
2832 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2833 NOTIFY_OBJ=w32notify.o
2834 NOTIFY_SUMMARY="yes (w32)"
2838 dnl inotify is available only on GNU/Linux.
2839 case $with_file_notification,$NOTIFY_OBJ in
2841 AC_CHECK_HEADER(sys/inotify.h)
2842 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2843 AC_CHECK_FUNC(inotify_init1)
2844 if test "$ac_cv_func_inotify_init1" = yes; then
2845 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2846 NOTIFY_OBJ=inotify.o
2847 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2852 dnl kqueue is available on BSD-like systems.
2853 case $with_file_notification,$NOTIFY_OBJ in
2855 EMACS_CHECK_MODULES([KQUEUE], [libkqueue])
2856 if test "$HAVE_KQUEUE" = "yes"; then
2857 AC_DEFINE(HAVE_KQUEUE, 1, [Define to 1 to use kqueue.])
2858 CPPFLAGS="$CPPFLAGS -I/usr/include/kqueue"
2859 NOTIFY_CFLAGS=$KQUEUE_CFLAGS
2860 NOTIFY_LIBS=$KQUEUE_LIBS
2862 NOTIFY_SUMMARY="yes -lkqueue"
2864 AC_SEARCH_LIBS(kqueue, [])
2865 if test "$ac_cv_search_kqueue" != no; then
2866 AC_DEFINE(HAVE_KQUEUE, 1, [Define to 1 to use kqueue.])
2868 NOTIFY_SUMMARY="yes (kqueue)"
2873 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2874 dnl has been added in glib 2.24. It has been tested under
2876 case $with_file_notification,$NOTIFY_OBJ in
2878 if test "${HAVE_NS}" = yes; then
2879 AC_MSG_ERROR(['--with-file-notification=gfile' is not supported in NextStep builds.
2880 Consider kqueue instead.])
2882 EMACS_CHECK_MODULES([GFILENOTIFY], [gio-2.0 >= 2.24])
2883 if test "$HAVE_GFILENOTIFY" = "yes"; then
2884 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2885 NOTIFY_CFLAGS=$GFILENOTIFY_CFLAGS
2886 NOTIFY_LIBS=$GFILENOTIFY_LIBS
2887 NOTIFY_OBJ=gfilenotify.o
2888 NOTIFY_SUMMARY="yes -lgio (gfile)"
2893 case $with_file_notification,$NOTIFY_OBJ in
2894 yes,* | no,* | *,?*) ;;
2895 *) AC_MSG_ERROR([File notification '$with_file_notification' requested but requirements not found.]) ;;
2898 if test -n "$NOTIFY_OBJ"; then
2899 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2901 AC_SUBST(NOTIFY_CFLAGS)
2902 AC_SUBST(NOTIFY_LIBS)
2903 AC_SUBST(NOTIFY_OBJ)
2905 dnl Do not put whitespace before the #include statements below.
2906 dnl Older compilers (eg sunos4 cc) choke on it.
2909 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2910 if test "$with_xaw3d" != no; then
2911 AC_CACHE_VAL(emacs_cv_xaw3d,
2912 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2913 #include <X11/Intrinsic.h>
2914 #include <X11/Xaw3d/Simple.h>]],
2916 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2917 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2918 emacs_cv_xaw3d=no)])
2922 if test $emacs_cv_xaw3d = yes; then
2923 AC_MSG_CHECKING(for xaw3d)
2924 AC_MSG_RESULT([yes; using Lucid toolkit])
2928 AC_DEFINE(HAVE_XAW3D, 1,
2929 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2931 AC_MSG_CHECKING(for xaw3d)
2933 AC_MSG_CHECKING(for libXaw)
2934 AC_CACHE_VAL(emacs_cv_xaw,
2935 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2936 #include <X11/Intrinsic.h>
2937 #include <X11/Xaw/Simple.h>]],
2941 if test $emacs_cv_xaw = yes; then
2942 AC_MSG_RESULT([yes; using Lucid toolkit])
2945 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2946 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2948 AC_MSG_ERROR([No X toolkit could be found.
2949 If you are sure you want Emacs compiled without an X toolkit, pass
2951 to configure. Otherwise, install the development libraries for the toolkit
2952 that you want to use (e.g. Gtk+) and re-run configure.])
2957 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2961 if test "${USE_X_TOOLKIT}" != "none"; then
2962 AC_MSG_CHECKING(X11 toolkit version)
2963 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2964 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2965 [[#if XtSpecificationRelease < 6
2968 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2969 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2970 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2971 AC_MSG_RESULT(6 or newer)
2972 AC_DEFINE(HAVE_X11XTR6, 1,
2973 [Define to 1 if you have the X11R6 or newer version of Xt.])
2974 LIBXTR6="-lSM -lICE"
2976 ## Use libw.a along with X11R6 Xt.
2977 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2980 AC_MSG_RESULT(before 6)
2983 dnl If using toolkit, check whether libXmu.a exists.
2984 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2986 if test x$HAVE_X11XTR6 = xyes; then
2987 OTHERLIBS='-lXt -lSM -lICE'
2991 AC_SEARCH_LIBS([XmuConvertStandardSelection], [Xmu], [], [], [$OTHERLIBS])
2992 if test "X$LIBS" != "X$OLDLIBS"; then
2993 LIBXMU=$ac_cv_search_XmuConvertStandardSelection
2996 dnl ac_cv_search_XmuConvertStandardSelection is also referenced below.
3002 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
3003 # OpenMotif may be installed in such a way on some GNU/Linux systems.
3004 if test -d /usr/include/openmotif; then
3005 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
3006 emacs_cv_openmotif=yes
3007 case "$canonical" in
3008 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
3009 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
3012 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
3015 emacs_cv_openmotif=no
3017 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
3018 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
3019 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
3022 Motif version prior to 2.1.
3024 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
3025 if test $emacs_cv_motif_version_2_1 = yes; then
3026 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
3027 if test x$emacs_cv_openmotif = xyes; then
3028 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
3031 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
3032 # We put this in CFLAGS temporarily to precede other -I options
3033 # that might be in CFLAGS temporarily.
3034 # We put this in CPPFLAGS where it precedes the other -I options.
3035 OLD_CPPFLAGS=$CPPFLAGS
3037 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
3038 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
3039 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
3041 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
3042 if test $emacs_cv_lesstif = yes; then
3043 # Make sure this -I option remains in CPPFLAGS after it is set
3044 # back to REAL_CPPFLAGS.
3045 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
3046 # have those other -I options anyway. Ultimately, having this
3047 # directory ultimately in CPPFLAGS will be enough.
3048 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
3049 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
3052 CPPFLAGS=$OLD_CPPFLAGS
3055 AC_CHECK_HEADER([Xm/BulletinB.h], [],
3056 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
3059 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
3060 dnl using Motif or Xaw3d is available, and unless
3061 dnl --with-toolkit-scroll-bars=no was specified.
3063 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
3064 [Define to 1 if we should use toolkit scroll bars.])dnl
3065 USE_TOOLKIT_SCROLL_BARS=no
3066 if test "${with_toolkit_scroll_bars}" != "no"; then
3067 if test "${USE_X_TOOLKIT}" != "none"; then
3068 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
3069 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3071 USE_TOOLKIT_SCROLL_BARS=yes
3072 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
3073 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3074 USE_TOOLKIT_SCROLL_BARS=yes
3076 elif test "${HAVE_GTK}" = "yes"; then
3077 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3078 USE_TOOLKIT_SCROLL_BARS=yes
3079 elif test "${HAVE_NS}" = "yes"; then
3080 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3081 USE_TOOLKIT_SCROLL_BARS=yes
3082 elif test "${HAVE_W32}" = "yes"; then
3083 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3084 USE_TOOLKIT_SCROLL_BARS=yes
3088 dnl See if XIM is available.
3089 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
3090 #include <X11/Xlib.h>
3091 #include <X11/Xresource.h>]],
3092 [[XIMProc callback;]])],
3094 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
3097 dnl '--with-xim' now controls only the initial value of use_xim at run time.
3099 if test "${with_xim}" != "no"; then
3100 AC_DEFINE(USE_XIM, 1,
3101 [Define to 1 if we should use XIM, if it is available.])
3105 if test "${HAVE_XIM}" != "no"; then
3107 if test "$GCC" = yes; then
3108 CFLAGS="$CFLAGS --pedantic-errors"
3110 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
3111 #include <X11/Xlib.h>
3112 #include <X11/Xresource.h>]],
3118 XPointer *client_data;
3120 /* If we're not using GCC, it's probably not XFree86, and this is
3121 probably right, but we can't use something like --pedantic-errors. */
3122 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
3123 char*, XIMProc, XPointer*);
3125 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
3127 [emacs_cv_arg6_star=yes])
3128 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
3129 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
3130 either XPointer or XPointer*.])dnl
3131 if test "$emacs_cv_arg6_star" = yes; then
3132 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
3134 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
3139 ### Start of font-backend (under any platform) section.
3140 # (nothing here yet -- this is a placeholder)
3141 ### End of font-backend (under any platform) section.
3143 ### Start of font-backend (under X11) section.
3144 if test "${HAVE_X11}" = "yes"; then
3145 ## Use -lXft if available, unless '--with-xft=no'.
3147 if test "x${with_x}" = "xno"; then
3151 if test "$with_xft" != no; then
3152 EMACS_CHECK_MODULES([FONTCONFIG], [fontconfig >= 2.2.0])
3153 with_xft=$HAVE_FONTCONFIG
3156 if test "x${with_xft}" != "xno"; then
3158 EMACS_CHECK_MODULES([XFT], [xft >= 0.13.0], [], [HAVE_XFT=no])
3159 ## Because xftfont.c uses XRenderQueryExtension, we also
3160 ## need to link to -lXrender.
3162 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
3163 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
3164 OLD_CPPFLAGS="$CPPFLAGS"
3165 OLD_CFLAGS="$CFLAGS"
3167 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
3168 CFLAGS="$CFLAGS $XFT_CFLAGS"
3169 XFT_LIBS="-lXrender $XFT_LIBS"
3170 LIBS="$XFT_LIBS $LIBS"
3171 AC_CHECK_HEADER(X11/Xft/Xft.h,
3172 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
3173 [[#include <X11/X.h>]])
3175 if test "${HAVE_XFT}" = "yes"; then
3176 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
3178 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
3179 fi # "${HAVE_XFT}" = "yes"
3180 CPPFLAGS=$OLD_CPPFLAGS
3183 fi # "$HAVE_XFT" != no
3184 fi # "x${with_xft}" != "xno"
3186 ## We used to allow building with FreeType and without Xft.
3187 ## However, the ftx font backend driver is not in good shape.
3188 if test "$HAVE_XFT" != "yes"; then
3189 dnl For the "Does Emacs use" message at the end.
3193 dnl Strict linkers fail with
3194 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
3195 dnl if -lfreetype is not specified.
3196 dnl The following is needed to set FREETYPE_LIBS.
3197 EMACS_CHECK_MODULES([FREETYPE], [freetype2])
3199 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
3203 if test "${HAVE_FREETYPE}" = "yes"; then
3204 AC_DEFINE(HAVE_FREETYPE, 1,
3205 [Define to 1 if using the freetype and fontconfig libraries.])
3206 if test "${with_libotf}" != "no"; then
3207 EMACS_CHECK_MODULES([LIBOTF], [libotf])
3208 if test "$HAVE_LIBOTF" = "yes"; then
3209 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
3210 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
3211 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
3212 HAVE_OTF_GET_VARIATION_GLYPHS=no)
3213 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
3214 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
3215 [Define to 1 if libotf has OTF_get_variation_glyphs.])
3219 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
3220 dnl Does the new font backend require it, or can it work without it?
3224 if test "${HAVE_LIBOTF}" = yes; then
3225 if test "${with_m17n_flt}" != "no"; then
3226 EMACS_CHECK_MODULES([M17N_FLT], [m17n-flt])
3227 if test "$HAVE_M17N_FLT" = "yes"; then
3228 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
3239 ### End of font-backend (under X11) section.
3241 AC_SUBST(FREETYPE_CFLAGS)
3242 AC_SUBST(FREETYPE_LIBS)
3243 AC_SUBST(FONTCONFIG_CFLAGS)
3244 AC_SUBST(FONTCONFIG_LIBS)
3245 AC_SUBST(LIBOTF_CFLAGS)
3246 AC_SUBST(LIBOTF_LIBS)
3247 AC_SUBST(M17N_FLT_CFLAGS)
3248 AC_SUBST(M17N_FLT_LIBS)
3251 if test "${HAVE_X11}" = "yes"; then
3252 if test "${with_cairo}" != "no"; then
3253 CAIRO_REQUIRED=1.12.0
3254 CAIRO_MODULE="cairo >= $CAIRO_REQUIRED"
3255 EMACS_CHECK_MODULES(CAIRO, $CAIRO_MODULE)
3256 if test $HAVE_CAIRO = yes; then
3257 AC_DEFINE(USE_CAIRO, 1, [Define to 1 if using cairo.])
3259 AC_MSG_ERROR([cairo requested but not found.])
3262 CFLAGS="$CFLAGS $CAIRO_CFLAGS"
3263 LIBS="$LIBS $CAIRO_LIBS"
3264 AC_SUBST(CAIRO_CFLAGS)
3265 AC_SUBST(CAIRO_LIBS)
3269 if test "${HAVE_X11}" = "yes"; then
3270 AC_CHECK_HEADER(X11/Xlib-xcb.h,
3271 AC_CHECK_LIB(xcb, xcb_translate_coordinates, HAVE_XCB=yes))
3272 if test "${HAVE_XCB}" = "yes"; then
3273 AC_CHECK_LIB(X11-xcb, XGetXCBConnection, HAVE_X11_XCB=yes)
3274 if test "${HAVE_X11_XCB}" = "yes"; then
3275 AC_DEFINE(USE_XCB, 1,
3276 [Define to 1 if you have the XCB library and X11-XCB library for mixed
3277 X11/XCB programming.])
3278 XCB_LIBS="-lX11-xcb -lxcb"
3284 ### Use -lXpm if available, unless '--with-xpm=no'.
3285 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
3286 ### The Cygwin-w32 build uses <noX/xpm.h> instead of <X11/xpm.h>, so
3287 ### we need to set LDFLAGS accordingly.
3290 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
3291 if test "${with_xpm}" != "no"; then
3292 SAVE_LDFLAGS="$LDFLAGS"
3293 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
3294 AC_CHECK_HEADER(noX/xpm.h,
3295 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
3296 if test "${HAVE_XPM}" = "yes"; then
3297 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3298 AC_EGREP_CPP(no_return_alloc_pixels,
3299 [#include "noX/xpm.h"
3300 #ifndef XpmReturnAllocPixels
3301 no_return_alloc_pixels
3303 ], HAVE_XPM=no, HAVE_XPM=yes)
3305 if test "${HAVE_XPM}" = "yes"; then
3309 LDFLAGS="$SAVE_LDFLAGS"
3314 if test "${HAVE_XPM}" = "yes"; then
3315 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3320 if test "${HAVE_X11}" = "yes"; then
3321 dnl Avoid Xpm on AIX unless requested, as it crashes; see Bug#17598.
3322 test "$opsys$with_xpm_set" = aix4-2 && with_xpm=no
3324 if test "${with_xpm}" != "no"; then
3325 AC_CHECK_HEADER(X11/xpm.h,
3326 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
3327 if test "${HAVE_XPM}" = "yes"; then
3328 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3329 AC_EGREP_CPP(no_return_alloc_pixels,
3330 [#include "X11/xpm.h"
3331 #ifndef XpmReturnAllocPixels
3332 no_return_alloc_pixels
3334 ], HAVE_XPM=no, HAVE_XPM=yes)
3336 if test "${HAVE_XPM}" = "yes"; then
3344 if test "${HAVE_XPM}" = "yes"; then
3345 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3347 elif test "$opsys,$LUCID_LIBW" = aix4-2,-lXaw; then
3348 dnl AIX -lXaw needs -lXpm linked too; see Bug#17598 Message#152.
3353 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
3354 ### slightly different requirements wrt image libraries (it doesn't
3355 ### use -lXpm because it loads the xpm shared library dynamically at
3357 if test "${opsys}" = "mingw32"; then
3358 if test "${with_xpm}" != "no"; then
3359 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
3363 if test "${HAVE_XPM}" = "yes"; then
3364 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3370 ### Use -ljpeg if available, unless '--with-jpeg=no'.
3373 if test "${with_jpeg}" != "no"; then
3374 AC_CACHE_CHECK([for jpeglib 6b or later],
3377 for emacs_cv_jpeglib in yes -ljpeg no; do
3378 case $emacs_cv_jpeglib in
3381 *) LIBS="$LIBS $emacs_cv_jpeglib";;
3385 [[#undef HAVE_STDLIB_H /* Avoid config.h/jpeglib.h collision. */
3386 #include <stdio.h> /* jpeglib.h needs FILE and size_t. */
3387 #include <jpeglib.h>
3389 char verify[JPEG_LIB_VERSION < 62 ? -1 : 1];
3390 struct jpeg_decompress_struct cinfo;
3393 jpeg_create_decompress (&cinfo);
3394 WARNMS (&cinfo, JWRN_JPEG_EOF);
3395 jpeg_destroy_decompress (&cinfo);
3397 [emacs_link_ok=yes],
3400 test $emacs_link_ok = yes && break
3402 if test "$emacs_cv_jpeglib" != no; then
3404 AC_DEFINE([HAVE_JPEG], 1,
3405 [Define to 1 if you have the jpeg library (typically -ljpeg).])
3406 ### mingw32 doesn't use -ljpeg, since it loads the library
3407 ### dynamically when needed, and doesn't want a run-time
3408 ### dependency on the jpeglib DLL.
3409 test "$emacs_cv_jpeglib" != yes && test "${opsys}" != "mingw32" \
3410 && LIBJPEG=$emacs_cv_jpeglib
3417 if test "${with_zlib}" != "no"; then
3419 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
3421 case $ac_cv_search_inflateEnd in
3422 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3425 if test "${HAVE_ZLIB}" = "yes"; then
3426 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3427 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3428 if test "${opsys}" = "mingw32"; then
3434 ### Dynamic modules support
3439 if test "${with_modules}" != "no"; then
3443 MODULES_SUFFIX=".so"
3447 MODULES_SUFFIX=".dll"
3451 MODULES_SUFFIX=".so"
3455 # BSD systems have dlopen in libc.
3456 AC_CHECK_FUNC([dlopen],
3457 [MODULES_SUFFIX=".so"
3462 if test "${HAVE_MODULES}" = no; then
3463 AC_MSG_ERROR([Dynamic modules are not supported on your system])
3466 LIBS="$LIBS $LIBMODULES"
3467 AC_CHECK_FUNCS([dladdr dlfunc])
3472 if test "${HAVE_MODULES}" = yes; then
3473 MODULES_OBJ="dynlib.o emacs-module.o"
3474 AC_DEFINE(HAVE_MODULES, 1, [Define to 1 if dynamic modules are enabled])
3475 AC_DEFINE_UNQUOTED(MODULES_SUFFIX, "$MODULES_SUFFIX",
3476 [System extension for dynamic libraries])
3478 AC_SUBST(MODULES_OBJ)
3479 AC_SUBST(LIBMODULES)
3480 AC_SUBST(HAVE_MODULES)
3481 AC_SUBST(MODULES_SUFFIX)
3483 ### Use -lpng if available, unless '--with-png=no'.
3487 if test "${NS_IMPL_COCOA}" = yes; then
3489 elif test "${with_png}" != no; then
3490 # mingw32 loads the library dynamically.
3491 if test "$opsys" = mingw32; then
3492 AC_CHECK_HEADER([png.h], [HAVE_PNG=yes])
3493 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3494 AC_MSG_CHECKING([for png])
3495 png_cflags=`(libpng-config --cflags) 2>&AS_MESSAGE_LOG_FD` &&
3496 png_ldflags=`(libpng-config --ldflags) 2>&AS_MESSAGE_LOG_FD` || {
3497 # libpng-config does not work; configure by hand.
3498 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
3499 # in /usr/include/libpng.
3500 if test -r /usr/include/libpng/png.h &&
3501 test ! -r /usr/include/png.h; then
3502 png_cflags=-I/usr/include/libpng
3510 CFLAGS="$CFLAGS $png_cflags"
3511 LIBS="$png_ldflags -lz -lm $LIBS"
3513 [AC_LANG_PROGRAM([[#include <png.h>]],
3514 [[return !png_get_channels (0, 0);]])],
3516 PNG_CFLAGS=`AS_ECHO(["$png_cflags"]) | sed -e "$edit_cflags"`
3518 # $LIBPNG requires explicit -lz in some cases.
3519 # We don't know what those cases are, exactly, so play it safe and
3520 # append -lz to any nonempty $LIBPNG, unless we're already using LIBZ.
3521 if test -n "$LIBPNG" && test -z "$LIBZ"; then
3522 LIBPNG="$LIBPNG -lz"
3526 AC_MSG_RESULT([$HAVE_PNG])
3529 if test $HAVE_PNG = yes; then
3530 AC_DEFINE([HAVE_PNG], [1], [Define to 1 if you have the png library.])
3533 CFLAGS="$CFLAGS $PNG_CFLAGS"
3534 AC_CHECK_DECL([png_longjmp],
3536 [AC_DEFINE([PNG_DEPSTRUCT], [],
3537 [Define to empty to suppress deprecation warnings when building
3538 with --enable-gcc-warnings and with libpng versions before 1.5,
3539 which lack png_longjmp.])],
3545 AC_SUBST(PNG_CFLAGS)
3547 ### Use -ltiff if available, unless '--with-tiff=no'.
3548 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3551 if test "${opsys}" = "mingw32"; then
3552 if test "${with_tiff}" != "no"; then
3553 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3555 if test "${HAVE_TIFF}" = "yes"; then
3556 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3558 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3559 if test "${with_tiff}" != "no"; then
3560 AC_CHECK_HEADER(tiffio.h,
3562 # At least one tiff package requires the jpeg library.
3563 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3564 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3567 if test "${HAVE_TIFF}" = "yes"; then
3568 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3569 dnl FIXME -lz -lm, as per libpng?
3575 ### Use -lgif or -lungif if available, unless '--with-gif=no'.
3576 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3579 if test "${opsys}" = "mingw32"; then
3580 if test "${with_gif}" != "no"; then
3581 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3583 if test "${HAVE_GIF}" = "yes"; then
3584 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3586 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3587 || test "${HAVE_W32}" = "yes"; then
3588 AC_CHECK_HEADER(gif_lib.h,
3589 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3590 # Earlier versions can crash Emacs, but version 5.0 removes EGifPutExtensionLast.
3591 [AC_CHECK_LIB(gif, GifMakeMapObject, HAVE_GIF=yes,
3592 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])])
3594 if test "$HAVE_GIF" = yes; then
3596 elif test "$HAVE_GIF" = maybe; then
3597 # If gif_lib.h but no libgif, try libungif.
3598 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3599 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3602 if test "${HAVE_GIF}" = "yes"; then
3603 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3608 dnl Check for required libraries.
3611 if test "${HAVE_X11}" = "yes"; then
3612 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3613 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3614 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3615 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3616 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3617 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3618 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3619 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3620 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3621 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3623 test "${with_gnutls}" != "no" && test "${HAVE_GNUTLS}" != "yes" &&
3624 MISSING="$MISSING gnutls" && WITH_NO="$WITH_NO --with-gnutls=no"
3625 if test "X${MISSING}" != X; then
3626 AC_MSG_ERROR([The following required libraries were not found:
3628 Maybe some development libraries/packages are missing?
3629 If you don't want to link with them give
3631 as options to configure])
3634 ### Use -lgpm if available, unless '--with-gpm=no'.
3637 if test "${with_gpm}" != "no"; then
3638 AC_CHECK_HEADER(gpm.h,
3639 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3641 if test "${HAVE_GPM}" = "yes"; then
3642 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3648 dnl Check for malloc/malloc.h on darwin
3649 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3652 ### Use NeXTstep API to implement GUI.
3653 if test "${HAVE_NS}" = "yes"; then
3654 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on macOS.])
3655 if test "${NS_IMPL_COCOA}" = "yes"; then
3656 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under macOS.])
3658 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3659 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3660 if test $NS_GNUSTEP_CONFIG != yes; then
3661 # See also .m.o rule in src/Makefile.in. */
3662 # FIXME: are all these flags really needed? Document here why. */
3663 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3664 ## Extra CFLAGS applied to src/*.m files.
3665 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3671 ### Use session management (-lSM -lICE) if available
3674 if test "${HAVE_X11}" = "yes"; then
3675 AC_CHECK_HEADER(X11/SM/SMlib.h,
3676 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3678 if test "${HAVE_X_SM}" = "yes"; then
3679 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3685 ### Use XRandr (-lXrandr) if available
3687 if test "${HAVE_X11}" = "yes"; then
3688 XRANDR_REQUIRED=1.2.2
3689 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3690 EMACS_CHECK_MODULES([XRANDR], [$XRANDR_MODULES])
3691 if test $HAVE_XRANDR = no; then
3692 # Test old way in case pkg-config doesn't have it (older machines).
3693 # Include Xrender.h by hand to work around bug in older Xrandr.h
3694 # (e.g. RHEL5) and silence (harmless) configure warning (bug#18465).
3695 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3696 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)],
3697 [], [AC_INCLUDES_DEFAULT
3698 #include <X11/extensions/Xrender.h>])
3699 if test $HAVE_XRANDR = yes; then
3700 XRANDR_LIBS=-lXrandr
3703 if test $HAVE_XRANDR = yes; then
3704 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3707 AC_SUBST(XRANDR_CFLAGS)
3708 AC_SUBST(XRANDR_LIBS)
3710 ### Use Xinerama (-lXinerama) if available
3712 if test "${HAVE_X11}" = "yes"; then
3713 XINERAMA_REQUIRED=1.0.2
3714 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3715 EMACS_CHECK_MODULES([XINERAMA], [$XINERAMA_MODULES])
3716 if test $HAVE_XINERAMA = no; then
3717 # Test old way in case pkg-config doesn't have it (older machines).
3718 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3719 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3720 if test $HAVE_XINERAMA = yes; then
3721 XINERAMA_LIBS=-lXinerama
3724 if test $HAVE_XINERAMA = yes; then
3725 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3728 AC_SUBST(XINERAMA_CFLAGS)
3729 AC_SUBST(XINERAMA_LIBS)
3731 ### Use Xfixes (-lXfixes) if available
3733 if test "${HAVE_X11}" = "yes"; then
3734 XFIXES_REQUIRED=4.0.0
3735 XFIXES_MODULES="xfixes >= $XFIXES_REQUIRED"
3736 EMACS_CHECK_MODULES([XFIXES], [$XFIXES_MODULES])
3737 if test $HAVE_XFIXES = no; then
3738 # Test old way in case pkg-config doesn't have it (older machines).
3739 AC_CHECK_HEADER(X11/extensions/Xfixes.h,
3740 [AC_CHECK_LIB(Xfixes, XFixesHideCursor, HAVE_XFIXES=yes)])
3741 if test $HAVE_XFIXES = yes; then
3742 XFIXES_LIBS=-lXfixes
3745 if test $HAVE_XFIXES = yes; then
3746 AC_DEFINE(HAVE_XFIXES, 1, [Define to 1 if you have the Xfixes extension.])
3749 AC_SUBST(XFIXES_CFLAGS)
3750 AC_SUBST(XFIXES_LIBS)
3752 ### Use Xdbe (-lXdbe) if available
3754 if test "${HAVE_X11}" = "yes"; then
3755 AC_CHECK_HEADER(X11/extensions/Xdbe.h,
3756 [AC_CHECK_LIB(Xext, XdbeAllocateBackBufferName, HAVE_XDBE=yes)],
3758 [#include <X11/Xlib.h>
3760 if test $HAVE_XDBE = yes; then
3763 if test $HAVE_XDBE = yes; then
3764 AC_DEFINE(HAVE_XDBE, 1, [Define to 1 if you have the Xdbe extension.])
3767 AC_SUBST(XDBE_CFLAGS)
3770 ### Use libxml (-lxml2) if available
3771 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3773 if test "${with_xml2}" != "no"; then
3774 ### I'm not sure what the version number should be, so I just guessed.
3775 EMACS_CHECK_MODULES([LIBXML2], [libxml-2.0 > 2.6.17])
3776 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3777 if test "${HAVE_LIBXML2}" != "yes" && test "$opsys" = "darwin"; then
3778 SAVE_CPPFLAGS="$CPPFLAGS"
3779 if test -z "$xcsdkdir" -a -n "$XCRUN" -a ! -d /usr/include; then
3780 dnl /usr/include is not found. Try Xcode SDK dir if it is sane.
3781 xcsdkdir=`$XCRUN --show-sdk-path 2>/dev/null`
3783 *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
3787 CPPFLAGS="$CPPFLAGS -I$xcsdkdir/usr/include/libxml2"
3788 AC_CHECK_HEADER(libxml/HTMLparser.h,
3789 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3790 [#include <libxml/HTMLparser.h>])])
3791 CPPFLAGS="$SAVE_CPPFLAGS"
3792 if test "${HAVE_LIBXML2}" = "yes"; then
3793 LIBXML2_CFLAGS="-I'$xcsdkdir/usr/include/libxml2'"
3794 LIBXML2_LIBS="-lxml2"
3797 if test "${HAVE_LIBXML2}" = "yes"; then
3798 if test "${opsys}" != "mingw32"; then
3799 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no,
3804 if test "${HAVE_LIBXML2}" = "yes"; then
3805 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3812 AC_SUBST(LIBXML2_LIBS)
3813 AC_SUBST(LIBXML2_CFLAGS)
3817 if test ! "$with_mailutils"; then
3818 # Check for mail-locking functions in a "mail" library. Probably this should
3819 # have the same check as for liblockfile below.
3820 AC_CHECK_LIB([mail], [maillock], [have_mail=yes], [have_mail=no])
3821 if test $have_mail = yes; then
3823 AC_DEFINE([HAVE_LIBMAIL], [1],
3824 [Define to 1 if you have the 'mail' library (-lmail).])
3827 LIBS="$LIBS_MAIL $LIBS"
3828 AC_CHECK_FUNCS([touchlock])
3831 dnl Debian, at least:
3832 AC_CHECK_LIB([lockfile], [maillock], [have_lockfile=yes], [have_lockfile=no])
3833 if test $have_lockfile = yes; then
3834 LIBS_MAIL=-llockfile
3835 AC_DEFINE([HAVE_LIBLOCKFILE], [1],
3836 [Define to 1 if you have the 'lockfile' library (-llockfile).])
3838 # If we have the shared liblockfile, assume we must use it for mail
3839 # locking (e.g. Debian). If we couldn't link against liblockfile
3840 # (no liblockfile.a installed), ensure that we don't need to.
3841 dnl This works for files generally, not just executables.
3842 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3843 AC_CHECK_PROG([liblockfile], [liblockfile.so], [yes], [no],
3844 [/usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH])
3845 if test "$ac_cv_prog_liblockfile" = yes; then
3846 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3847 This probably means that movemail could lose mail.
3848 There may be a 'development' package to install containing liblockfile.])
3851 AC_CHECK_HEADERS([maillock.h])
3853 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3854 ## interlock access to the mail spool. The alternative is a lock file named
3855 ## /usr/spool/mail/$USER.lock.
3858 aix4-2) mail_lock="lockf" ;;
3860 gnu|freebsd|dragonfly|netbsd|openbsd|darwin) mail_lock="flock" ;;
3862 ## On GNU/Linux systems, both methods are used by various mail programs.
3863 ## I assume most people are using newer mailers that have heard of flock.
3864 ## Change this if you need to.
3865 ## Debian contains a patch which says: "On Debian/GNU/Linux systems,
3866 ## configure gets the right answers, and that means *NOT* using flock.
3867 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3868 ## for details." and then uses '#ifdef DEBIAN'. Unfortunately the
3869 ## Debian maintainer hasn't provided a clean fix for Emacs.
3870 ## movemail.c will use 'maillock' when MAILDIR, HAVE_LIBMAIL and
3871 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3872 ## correct logic. -- fx
3873 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3874 ## liblockfile is a Free Software replacement for libmail, used on
3875 ## Debian systems and elsewhere. -rfr.
3878 if test $have_mail = yes || test $have_lockfile = yes; then
3879 test $ac_cv_header_maillock_h = yes && mail_lock=no
3883 mail_lock="none-needed" ;;
3887 flock) AC_DEFINE([MAIL_USE_FLOCK], [1],
3888 [Define if the mailer uses flock to interlock the mail spool.]);;
3890 lockf) AC_DEFINE([MAIL_USE_LOCKF], [1],
3891 [Define if the mailer uses lockf to interlock the mail spool.]);;
3895 *) BLESSMAIL_TARGET="need-blessmail" ;;
3898 AC_SUBST([BLESSMAIL_TARGET])
3899 AC_SUBST([LIBS_MAIL])
3902 LIBS="$LIB_PTHREAD $LIB_MATH $LIBS"
3903 AC_CHECK_FUNCS(accept4 fchdir gethostname \
3904 getrusage get_current_dir_name \
3905 lrand48 random rint trunc \
3906 select getpagesize setlocale newlocale \
3907 getrlimit setrlimit shutdown \
3908 pthread_sigmask strsignal setitimer \
3909 sendto recvfrom getsockname getifaddrs freeifaddrs \
3911 getpwent endpwent getgrent endgrent \
3912 cfmakeraw cfsetspeed __executable_start log2 prctl)
3915 dnl No need to check for posix_memalign if aligned_alloc works.
3916 AC_CHECK_FUNCS([aligned_alloc posix_memalign], [break])
3917 AC_CHECK_DECLS([aligned_alloc], [], [], [[#include <stdlib.h>]])
3919 dnl Cannot use AC_CHECK_FUNCS
3920 AC_CACHE_CHECK([for __builtin_unwind_init],
3921 emacs_cv_func___builtin_unwind_init,
3922 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3923 emacs_cv_func___builtin_unwind_init=yes,
3924 emacs_cv_func___builtin_unwind_init=no)])
3925 if test $emacs_cv_func___builtin_unwind_init = yes; then
3926 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3927 [Define to 1 if you have the '__builtin_unwind_init' function.])
3930 AC_CHECK_HEADERS_ONCE(sys/un.h)
3935 AC_CHECK_FUNCS(grantpt)
3937 # PTY-related GNU extensions.
3938 AC_CHECK_FUNCS(getpt posix_openpt)
3940 # Check this now, so that we will NOT find the above functions in ncurses.
3941 # That is because we have not set up to link ncurses in lib-src.
3942 # It's better to believe a function is not available
3943 # than to expect to find it in ncurses.
3944 # Also we need tputs and friends to be able to build at all.
3945 AC_MSG_CHECKING([for library containing tputs])
3946 # Run a test program that contains a call to tputs, a call that is
3947 # never executed. This tests whether a pre-'main' dynamic linker
3948 # works with the library. It's too much trouble to actually call
3949 # tputs in the test program, due to portability hassles. When
3950 # cross-compiling, assume the test program will run if it links.
3951 AC_DEFUN([tputs_link_source], [
3953 [[extern void tputs (const char *, int, int (*)(int));
3954 int main (int argc, char **argv)
3957 tputs (argv[0], 0, 0);
3961 if test "${opsys}" = "mingw32"; then
3964 # Maybe curses should be tried earlier?
3965 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3966 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3968 if test -z "$tputs_library"; then
3972 LIBS_TERMCAP=-l$tputs_library
3974 LIBS="$LIBS_TERMCAP $LIBS"
3976 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3977 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3979 if test "X$msg" != Xno; then
3984 AC_MSG_RESULT([$msg])
3985 if test "X$msg" = Xno; then
3986 AC_MSG_ERROR([The required function 'tputs' was not found in any library.
3987 The following libraries were tried (in order):
3988 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3989 Please try installing whichever of these libraries is most appropriate
3990 for your system, together with its header files.
3991 For example, a libncurses-dev(el) or similar package.])
3994 ## Use termcap instead of terminfo?
3995 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3997 ## FIXME? In the cases below where we unconditionally set
3998 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3999 ## if that was found above to have tputs.
4000 ## Should we use the gnu* logic everywhere?
4002 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
4003 ## The ncurses library has been moved out of the System framework in
4004 ## Mac OS X 10.2. So if configure detects it, set the command-line
4005 ## option to use it.
4006 darwin) LIBS_TERMCAP="-lncurses" ;;
4008 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
4011 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
4012 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
4013 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
4014 [[#if __FreeBSD_version < 400000
4017 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
4019 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
4021 if test $emacs_cv_freebsd_terminfo = yes; then
4022 LIBS_TERMCAP="-lncurses"
4025 LIBS_TERMCAP="-ltermcap"
4035 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
4037 LIBS_TERMCAP="-ltermcap"
4041 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
4043 ## hpux: Make sure we get select from libc rather than from libcurses
4044 ## because libcurses on HPUX 10.10 has a broken version of select.
4045 ## We used to use -lc -lcurses, but this may be cleaner.
4046 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
4047 # set that way, now it uses the default). Isn't this a contradiction?
4048 hpux*) LIBS_TERMCAP="-ltermcap" ;;
4052 TERMCAP_OBJ=tparam.o
4053 if test $TERMINFO = yes; then
4054 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
4055 TERMCAP_OBJ=terminfo.o
4057 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
4058 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
4060 AC_SUBST(LIBS_TERMCAP)
4061 AC_SUBST(TERMCAP_OBJ)
4063 # GNU/Linux-specific timer functions.
4064 AC_CACHE_CHECK([for timerfd interface], [emacs_cv_have_timerfd],
4066 [AC_LANG_PROGRAM([[#include <sys/timerfd.h>
4068 [[timerfd_create (CLOCK_REALTIME,
4069 TFD_CLOEXEC | TFD_NONBLOCK);
4070 timerfd_settime (0, TFD_TIMER_ABSTIME, 0, 0);]])],
4071 [emacs_cv_have_timerfd=yes],
4072 [emacs_cv_have_timerfd=no])])
4073 if test "$emacs_cv_have_timerfd" = yes; then
4074 AC_DEFINE([HAVE_TIMERFD], 1,
4075 [Define to 1 if timerfd functions are supported as in GNU/Linux.])
4078 # Alternate stack for signal handlers.
4079 AC_CACHE_CHECK([whether signals can be handled on alternate stack],
4080 [emacs_cv_alternate_stack],
4082 [AC_LANG_PROGRAM([[#include <signal.h>
4085 struct sigaction sa;
4086 ss.ss_sp = malloc (SIGSTKSZ);
4087 ss.ss_size = SIGSTKSZ;
4088 sa.sa_flags = SA_SIGINFO | SA_ONSTACK;
4089 sigaltstack (&ss, 0);
4090 sigaction (SIGSEGV, &sa, 0);]])],
4091 [emacs_cv_alternate_stack=yes],
4092 [emacs_cv_alternate_stack=no])])
4094 # Do we need the Hesiod library to provide the support routines?
4095 dnl FIXME? Should we be skipping this on Darwin too?
4098 if test "$with_hesiod" != no ; then
4099 # Don't set $LIBS here -- see comments above. FIXME which comments?
4101 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
4102 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
4103 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
4104 if test "$resolv" = yes ; then
4110 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
4111 hesiod=yes, :, $RESOLVLIB)])
4113 if test x"$hesiod" = xyes; then
4115 LIBRESOLV=$RESOLVLIB
4121 # These tell us which Kerberos-related libraries to use.
4128 if test "${with_kerberos}" != no; then
4130 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
4131 if test $have_com_err = yes; then
4132 COM_ERRLIB=-lcom_err
4133 LIBS="$COM_ERRLIB $LIBS"
4135 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
4136 if test $have_crypto = yes; then
4138 LIBS="$CRYPTOLIB $LIBS"
4140 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
4141 if test $have_k5crypto = yes; then
4142 CRYPTOLIB=-lk5crypto
4143 LIBS="$CRYPTOLIB $LIBS"
4145 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
4146 if test $have_krb5=yes; then
4148 LIBS="$KRB5LIB $LIBS"
4150 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
4151 if test "${with_kerberos5}" = no; then
4152 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
4153 if test $have_des425 = yes; then
4155 LIBS="$DESLIB $LIBS"
4157 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
4158 if test $have_des = yes; then
4160 LIBS="$DESLIB $LIBS"
4163 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
4164 if test $have_krb4 = yes; then
4166 LIBS="$KRB4LIB $LIBS"
4168 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
4169 if test $have_krb = yes; then
4171 LIBS="$KRB4LIB $LIBS"
4176 if test "${with_kerberos5}" != no; then
4177 AC_CHECK_HEADERS(krb5.h,
4178 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
4179 [#include <krb5.h>])])
4181 AC_CHECK_HEADERS(krb.h,,
4182 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
4183 [AC_CHECK_HEADERS(kerberos/krb.h)])])
4185 AC_CHECK_HEADERS(com_err.h)
4189 AC_SUBST(COM_ERRLIB)
4195 AC_CHECK_HEADERS(valgrind/valgrind.h)
4197 AC_CHECK_MEMBERS([struct unipair.unicode], [], [], [[#include <linux/kd.h>]])
4199 AC_CHECK_FUNCS_ONCE([sbrk])
4202 AC_CHECK_FUNC(socket, , ok_so_far=no)
4203 if test $ok_so_far = yes; then
4204 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
4206 if test $ok_so_far = yes; then
4207 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
4209 if test $ok_so_far = yes; then
4210 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
4211 AC_DEFINE(HAVE_INET_SOCKETS, 1,
4212 [Define to 1 if you have inet sockets.])
4217 AC_CHECK_FUNCS(snprintf)
4219 dnl Check for glib. This differs from other library checks in that
4220 dnl Emacs need not link to glib unless some other library is already
4221 dnl linking to glib. Although glib provides no facilities that Emacs
4222 dnl needs for its own purposes, when glib is present Emacs needs to
4223 dnl use primitives like g_main_context_query to avoid clashing with
4224 dnl glib at a low level.
4226 dnl Check this late, since it depends on $GTK_CFLAGS etc.
4230 CFLAGS="$CFLAGS $GTK_CFLAGS $RSVG_CFLAGS $DBUS_CFLAGS $SETTINGS_CFLAGS"
4231 LIBS="$LIBS $GTK_LIBS $RSVG_LIBS $DBUS_LIBS $SETTINGS_LIBS"
4232 CFLAGS="$CFLAGS $NOTIFY_CFLAGS $CAIRO_CFLAGS"
4233 LIBS="$LIBS $NOTIFY_LIBS $CAIRO_LIBS"
4234 AC_MSG_CHECKING([whether GLib is linked in])
4235 AC_LINK_IFELSE([AC_LANG_PROGRAM(
4238 [[g_print ("Hello world");]])],
4241 AC_MSG_RESULT([$links_glib])
4242 if test "${links_glib}" = "yes"; then
4243 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
4244 if test "$HAVE_NS" = no;then
4252 dnl Adapted from Haible's version.
4253 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
4254 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
4255 [[char* cs = nl_langinfo(CODESET);]])],
4256 emacs_cv_langinfo_codeset=yes,
4257 emacs_cv_langinfo_codeset=no)
4259 if test $emacs_cv_langinfo_codeset = yes; then
4260 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
4261 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
4266 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
4267 dnl how the tty code is related to POSIX and/or other versions of termios.
4268 dnl The following looks like a useful start.
4270 dnl AC_SYS_POSIX_TERMIOS
4271 dnl if test $ac_cv_sys_posix_termios = yes; then
4272 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
4273 dnl and macros for terminal control.])
4274 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
4277 dnl Turned on June 1996 supposing nobody will mind it.
4278 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
4279 if test "${opsys}" != "mingw32"; then
4280 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
4281 in the full name stands for the login id.])
4284 dnl Everybody supports this, except MS.
4285 dnl Seems like the kind of thing we should be testing for, though.
4286 ## Note: PTYs are broken on darwin <6. Use at your own risk.
4287 if test "${opsys}" != "mingw32"; then
4288 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
4291 dnl Everybody supports this, except MS-DOS.
4292 dnl Seems like the kind of thing we should be testing for, though.
4293 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
4294 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
4295 4.2-compatible sockets.])
4297 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
4299 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
4300 a null file, or a data sink.])
4301 if test "${opsys}" = "mingw32"; then
4302 AC_DEFINE(NULL_DEVICE, ["NUL:"])
4304 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
4307 if test "${opsys}" = "mingw32"; then
4312 AC_DEFINE_UNQUOTED(SEPCHAR, ['$SEPCHAR'], [Character that separates PATH elements.])
4313 dnl This is for MinGW, and is used in test/Makefile.in.
4314 dnl The MSYS Bash has heuristics for replacing ':' with ';' when it
4315 dnl decides that a command-line argument to be passed to a MinGW program
4316 dnl is a PATH-style list of directories. But that heuristics plays it
4317 dnl safe, and only does the replacement when it is _absolutely_ sure it
4318 dnl sees a colon-separated list of file names; e.g. ":." is left alone,
4319 dnl which breaks in-tree builds. So we do this manually instead.
4320 dnl Note that we cannot rely on PATH_SEPARATOR, as that one will always
4321 dnl be computed as ':' in MSYS Bash.
4324 dnl Everybody supports this, except MS-DOS.
4325 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
4327 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
4330 AC_DEFINE(DIRECTORY_SEP, ['/'],
4331 [Character that separates directories in a file name.])
4333 if test "${opsys}" = "mingw32"; then
4334 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
4335 [Returns true if character is a device separator.])
4337 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
4338 [Returns true if character is a directory separator.])
4340 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
4341 [Returns true if character is any form of separator.])
4343 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
4344 [Returns true if character is a device separator.])
4346 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
4347 [Returns true if character is a directory separator.])
4349 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
4350 [Returns true if character is any form of separator.])
4353 if test "$USE_X_TOOLKIT" != "none"; then
4357 dnl Assar Westerlund <assar@sics.se> says this is necessary
4358 dnl for HP-UX 10.20, and that it works for HP-UX 0 as well.
4362 if test "$have_editres" != no && test ! -z "$LIBXMU"; then
4364 dnl See libXmu.a check above.
4365 if test x$HAVE_X11XTR6 = xyes; then
4366 LIBS="-lXt -lSM -lICE $LIBXMU"
4368 OTHERLIBS="-lXt -$LIBXMU"
4371 [#include <X11/Intrinsic.h>
4372 #include <X11/Xmu/Editres.h>],
4373 [_XEditResCheckMessages (0, 0, 0, 0);],
4374 [AC_DEFINE([X_TOOLKIT_EDITRES], 1,
4375 [Define to 1 if we should use XEditRes.])])
4382 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
4383 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
4384 dnl need the constant to dimension an array. So wire in the appropriate
4386 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
4390 emacs_broken_SIGIO=no
4393 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
4394 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
4395 hpux* | nacl | openbsd | sol2* | unixware )
4396 emacs_broken_SIGIO=yes
4400 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
4401 dnl the way this system works, libc functions that return malloced
4402 dnl memory use the libc malloc implementation. Calling xfree or
4403 dnl xrealloc on the results of such functions results in a crash.
4405 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
4406 dnl but that does not currently work on this system.
4408 dnl It is possible to completely override the malloc implementation on
4409 dnl AIX, but that involves putting the malloc functions in a shared
4410 dnl library and setting the MALLOCTYPE environment variable to point to
4411 dnl that shared library.
4413 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
4414 dnl to avoid a crash just use the Emacs implementation for that function.
4416 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
4417 dnl of this file, so that we do not check for get_current_dir_name
4418 dnl on AIX. But that might be fragile if something else ends
4419 dnl up testing for get_current_dir_name as a dependency.
4420 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
4421 get_current_dir_name should not be used.])
4425 dnl Circumvent a bug in FreeBSD. In the following sequence of
4426 dnl writes/reads on a PTY, read(2) returns bogus data:
4428 dnl write(2) 1022 bytes
4429 dnl write(2) 954 bytes, get EAGAIN
4430 dnl read(2) 1024 bytes in process_read_output
4431 dnl read(2) 11 bytes in process_read_output
4433 dnl That is, read(2) returns more bytes than have ever been written
4434 dnl successfully. The 1033 bytes read are the 1022 bytes written
4435 dnl successfully after processing (for example with CRs added if the
4436 dnl terminal is set up that way which it is here). The same bytes will
4437 dnl be seen again in a later read(2), without the CRs.
4438 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
4439 work around an issue when reading from a PTY.])
4445 dnl FIXME Can't we test if this exists (eg /proc/$$)?
4446 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
4451 darwin | dragonfly | freebsd | netbsd | openbsd )
4452 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
4453 close a pty to make it a controlling terminal (it is already a
4454 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
4458 dnl FIXME Surely we can test for this rather than hard-code it.
4460 netbsd | openbsd) sound_device="/dev/audio" ;;
4461 *) sound_device="/dev/dsp" ;;
4465 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
4466 [Name of the default sound device.])
4469 dnl Emacs can read input using SIGIO and buffering characters itself,
4470 dnl or using CBREAK mode and making C-g cause SIGINT.
4471 dnl The choice is controlled by the variable interrupt_input.
4473 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
4475 dnl Emacs uses the presence of the USABLE_SIGIO macro
4476 dnl to indicate whether or not signal-driven I/O is possible. It uses
4477 dnl INTERRUPT_INPUT to decide whether to use it by default.
4479 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
4480 dnl CBREAK mode has two disadvantages
4481 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
4482 dnl I hear that in system V this problem does not exist.
4483 dnl 2) Control-G causes output to be discarded.
4484 dnl I do not know whether this can be fixed in system V.
4486 dnl Another method of doing input is planned but not implemented.
4487 dnl It would have Emacs fork off a separate process
4488 dnl to read the input and send it to the true Emacs process
4491 darwin | gnu-linux | gnu-kfreebsd )
4492 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
4497 dnl If the system's imake configuration file defines 'NeedWidePrototypes'
4498 dnl as 'NO', we must define NARROWPROTO manually. Such a define is
4499 dnl generated in the Makefile generated by 'xmkmf'. If we don't define
4500 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
4501 dnl taking float or double parameters.
4503 cygwin|gnu|gnu-linux|gnu-kfreebsd|freebsd|netbsd|openbsd)
4504 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
4505 file defines 'NeedWidePrototypes' as 'NO'.])
4510 dnl Used in process.c, this must be a loop, even if it only runs once.
4511 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
4512 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
4513 dnl trying suffixes 0-16.
4514 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
4515 first PTY, if PTYs are supported.])
4516 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
4517 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
4518 end of a PTY, if non-standard.])
4519 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
4520 end of a PTY, if non-standard.])
4524 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4525 dnl You allocate a pty by opening /dev/ptc to get the master side.
4526 dnl To get the name of the slave side, you just ttyname() the master side.
4527 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4528 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4532 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4533 dnl multi-line AC_DEFINEs are hard. :(
4534 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)])
4535 AC_DEFINE(PTY_NAME_SPRINTF, [])
4536 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4540 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4543 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd | darwin | nacl )
4545 if test "x$ac_cv_func_grantpt" = xyes; then
4546 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4547 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4548 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4549 dnl to prevent sigchld_handler from intercepting the child's death.
4550 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); }])
4551 dnl if HAVE_POSIX_OPENPT
4552 if test "x$ac_cv_func_posix_openpt" = xyes; then
4553 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (false)])
4554 AC_DEFINE(PTY_NAME_SPRINTF, [])
4556 elif test "x$ac_cv_func_getpt" = xyes; then
4557 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4558 AC_DEFINE(PTY_NAME_SPRINTF, [])
4560 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4563 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4568 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4569 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4570 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4574 dnl On SysVr4, grantpt(3) forks a subprocess, so do not use
4575 dnl O_CLOEXEC when opening the pty, and keep the SIGCHLD handler
4576 dnl from intercepting that death. If any child but grantpt's should die
4577 dnl within, it should be caught after sigrelse(2).
4578 AC_DEFINE(PTY_OPEN, [fd = open (pty_name, O_RDWR | O_NONBLOCK)])
4579 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); }])
4583 dnl Comments are as per sol2*.
4584 AC_DEFINE(PTY_OPEN, [fd = open (pty_name, O_RDWR | O_NONBLOCK)])
4585 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); }])
4592 dnl This change means that we don't loop through allocate_pty too
4593 dnl many times in the (rare) event of a failure.
4594 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4595 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4596 dnl Push various streams modules onto a PTY channel. Used in process.c.
4597 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.])
4602 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4603 "typing" a signal character on the pty.])
4606 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4607 aix4-2 | cygwin | gnu | dragonfly | freebsd | netbsd | openbsd | darwin )
4608 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4611 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4612 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4613 gnu-linux | gnu-kfreebsd )
4615 AC_MSG_CHECKING([for signals via characters])
4616 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4617 #include <linux/version.h>
4618 #if LINUX_VERSION_CODE < 0x20400
4619 # error "Linux version too old"
4621 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4623 AC_MSG_RESULT([$emacs_signals_via_chars])
4624 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4629 AH_TEMPLATE(TAB3, [Undocumented.])
4632 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4634 gnu | dragonfly | freebsd | netbsd | openbsd )
4635 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4636 AC_DEFINE(TAB3, OXTABS)
4639 gnu-linux | gnu-kfreebsd )
4640 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4644 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4645 [do { extern void *__libc_ia64_register_backing_store_base; __builtin_ia64_flushrs (); mark_memory (__libc_ia64_register_backing_store_base, __builtin_ia64_bsp ());} while (false)],
4646 [Mark a secondary stack, like the register stack on the ia64.]), [])
4650 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4651 run_time_remap; for HPUX.])
4656 dnl This won't be used automatically yet. We also need to know, at least,
4657 dnl that the stack is continuous.
4658 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4659 registers relevant for conservative garbage collection in the jmp_buf.])
4663 dnl Not all the architectures are tested, but there are Debian packages
4664 dnl for SCM and/or Guile on them, so the technique must work. See also
4665 dnl comments in alloc.c concerning setjmp and gcc.
4666 dnl Fixme: it's probably safe to just use the GCC conditional below.
4667 gnu-linux | gnu-kfreebsd )
4668 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4669 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4670 || defined __alpha__ || defined __mips__ || defined __s390__ \
4671 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4672 || defined __ia64__ || defined __sh__
4675 # error "setjmp not known to work on this arch"
4677 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4682 if test x$GCC = xyes; then
4683 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4684 AC_DEFINE(GC_SETJMP_WORKS, 1)
4687 aix* | dragonfly | freebsd | netbsd | openbsd | sol2* )
4688 AC_DEFINE(GC_SETJMP_WORKS, 1)
4693 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4694 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4697 [[#include <setjmp.h>
4699 # define _longjmp longjmp
4704 _longjmp (j, 1);]])],
4705 [emacs_cv_func__setjmp=yes],
4706 [emacs_cv_func__setjmp=no])])
4707 if test $emacs_cv_func__setjmp = yes; then
4708 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4711 # We need to preserve signal mask to handle C stack overflows.
4712 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4715 [[#include <setjmp.h>
4718 if (! sigsetjmp (j, 1))
4719 siglongjmp (j, 1);]])],
4720 [emacs_cv_func_sigsetjmp=yes],
4721 [emacs_cv_func_sigsetjmp=no])])
4722 if test $emacs_cv_func_sigsetjmp = yes; then
4723 AC_DEFINE([HAVE_SIGSETJMP], 1,
4724 [Define to 1 if sigsetjmp and siglongjmp work.])
4727 case $emacs_cv_func_sigsetjmp,$emacs_cv_alternate_stack,$opsys in
4728 yes,yes,* | *,*,mingw32)
4729 AC_DEFINE([HAVE_STACK_OVERFLOW_HANDLING], 1,
4730 [Define to 1 if C stack overflow can be handled in some cases.]);;
4735 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4736 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4737 dnl and this is all we need.
4738 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4745 dnl Used in xfaces.c.
4746 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4747 some systems, where it requires time.h.])
4752 dnl Define symbols to identify the version of Unix this is.
4753 dnl Define all the symbols that apply correctly.
4754 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4755 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4756 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4757 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4762 dnl This symbol should be defined on AIX Version 3 ???????
4763 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4765 # error "_AIX not defined"
4767 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4771 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4775 dnl Not __APPLE__, as this may not be defined on non-macOS Darwin.
4776 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4777 dnl distinguish macOS from pure Darwin.
4778 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4781 gnu-linux | gnu-kfreebsd )
4783 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4788 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4792 AC_DEFINE(DOS_NT, [])
4793 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4794 if test "x$ac_enable_checking" != "x" ; then
4795 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4801 AC_DEFINE(USG5_4, [])
4802 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4807 AC_DEFINE(USG5_4, [])
4811 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4814 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4815 emacs_cv_usable_FIONREAD=no
4819 emacs_cv_usable_FIONREAD=yes
4824 [AC_LANG_PROGRAM([[#include <sys/types.h>
4825 #include <sys/ioctl.h>
4827 # include <sys/filio.h>
4830 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4831 [emacs_cv_usable_FIONREAD=yes],
4832 [emacs_cv_usable_FIONREAD=no])
4835 if test $emacs_cv_usable_FIONREAD = yes; then
4836 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4838 if test $emacs_broken_SIGIO = no; then
4839 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4841 [AC_LANG_PROGRAM([[#include <fcntl.h>
4844 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4845 [emacs_cv_usable_SIGIO=yes],
4846 [emacs_cv_usable_SIGIO=no])],
4847 [emacs_cv_usable_SIGIO=yes],
4848 [emacs_cv_usable_SIGIO=no])
4849 if test $emacs_cv_usable_SIGIO = yes; then
4850 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4857 dnl It works to open the pty's tty in the parent (Emacs), then
4858 dnl close and reopen it in the child.
4859 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4860 works to open a pty's tty in the parent process, then close and
4861 reopen it in the child.])
4865 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4870 # Set up the CFLAGS for real compilation, so we can substitute it.
4871 CFLAGS="$REAL_CFLAGS"
4872 CPPFLAGS="$REAL_CPPFLAGS"
4875 ## Hack to detect a buggy GCC version.
4876 if test "$GCC" = yes && \
4877 $CC --version 2> /dev/null | grep 'gcc.* 4.5.0' >/dev/null; then
4879 *-fno-optimize-sibling-calls*) ;;
4881 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS.]);;
4885 version=$PACKAGE_VERSION
4887 copyright="Copyright (C) 2017 Free Software Foundation, Inc."
4888 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4889 [Short copyright string for this version of Emacs.])
4892 ### Specify what sort of things we'll be editing into Makefile and config.h.
4893 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4895 AC_SUBST(configuration)
4900 AC_SUBST(exec_prefix)
4903 AC_SUBST(sharedstatedir)
4904 AC_SUBST(libexecdir)
4908 AC_SUBST(standardlisppath)
4909 AC_SUBST(locallisppath)
4911 AC_SUBST(x_default_search_path)
4913 AC_SUBST(archlibdir)
4919 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4920 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4921 ## end of LIBX_BASE, but nothing ever set it.
4922 AC_SUBST(LD_SWITCH_X_SITE)
4923 AC_SUBST(C_SWITCH_X_SITE)
4924 AC_SUBST(GNUSTEP_CFLAGS)
4926 ## Used in lwlib/Makefile.in.
4927 AC_SUBST(X_TOOLKIT_TYPE)
4929 AC_SUBST(ns_appbindir)
4930 AC_SUBST(ns_appresdir)
4932 AC_SUBST(GNU_OBJC_CFLAGS)
4933 AC_SUBST(OTHER_FILES)
4935 if test -n "${term_header}"; then
4936 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4937 [Define to the header for the built-in window system.])
4940 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4941 [Define to the canonical Emacs configuration name.])
4942 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4943 [Define to the options passed to configure.])
4948 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4949 AC_DEFINE(HAVE_X_WINDOWS, 1,
4950 [Define to 1 if you want to use the X window system.])
4952 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4954 if test "$HAVE_CAIRO" = "yes"; then
4955 FONT_OBJ="ftfont.o ftcrfont.o"
4956 elif test "$HAVE_XFT" = "yes"; then
4957 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4958 elif test "$HAVE_FREETYPE" = "yes"; then
4959 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4969 if test "${USE_X_TOOLKIT}" != "none" ; then
4971 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4972 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4973 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4974 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4975 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4979 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4980 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4984 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4985 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4986 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4990 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4991 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4994 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4997 AC_SUBST(WIDGET_OBJ)
5000 case "$USE_X_TOOLKIT" in
5001 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
5002 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
5003 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
5005 if test "$HAVE_XWIDGETS" = "yes"; then
5006 TOOLKIT_LIBW="$TOOLKIT_LIBW -lXcomposite"
5008 AC_SUBST(TOOLKIT_LIBW)
5010 if test "${opsys}" != "mingw32"; then
5011 if test "$USE_X_TOOLKIT" = "none"; then
5012 LIBXT_OTHER="\$(LIBXSM)"
5014 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
5017 AC_SUBST(LIBXT_OTHER)
5019 if test "${HAVE_X11}" = "yes" ; then
5020 AC_DEFINE(HAVE_X11, 1,
5021 [Define to 1 if you want to use version 11 of X windows.])
5022 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
5026 AC_SUBST(LIBX_OTHER)
5029 if test "$HAVE_GTK" = yes || test "$HAVE_X11" != yes; then
5031 elif test "$USE_X_TOOLKIT" = none; then
5033 LIBXMENU='$(oldXMenudir)/libXMenu11.a'
5034 AUTODEPEND_PARENTS="$AUTODEPEND_PARENTS oldXMenu"
5036 LIBXMENU='$(lwlibdir)/liblw.a'
5037 AUTODEPEND_PARENTS="$AUTODEPEND_PARENTS lwlib"
5041 AC_CACHE_CHECK([for struct alignment],
5042 [emacs_cv_struct_alignment],
5044 [AC_LANG_PROGRAM([[#include <stddef.h>
5045 struct __attribute__ ((aligned (8))) s { char c; };
5046 struct t { char c; struct s s; };
5047 char verify[offsetof (struct t, s) == 8 ? 1 : -1];
5049 [emacs_cv_struct_alignment=yes],
5050 [emacs_cv_struct_alignment=no])])
5051 if test "$emacs_cv_struct_alignment" = yes; then
5052 AC_DEFINE([HAVE_STRUCT_ATTRIBUTE_ALIGNED], 1,
5053 [Define to 1 if 'struct __attribute__ ((aligned (N)))' aligns the
5054 structure to an N-byte boundary.])
5057 if test "${GNU_MALLOC}" = "yes" ; then
5058 AC_DEFINE(GNU_MALLOC, 1,
5059 [Define to 1 if you want to use the GNU memory allocator.])
5063 if test "${REL_ALLOC}" = "yes" ; then
5064 AC_DEFINE(REL_ALLOC, 1,
5065 [Define REL_ALLOC if you want to use the relocating allocator for
5068 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
5070 AC_SUBST(RALLOC_OBJ)
5072 if test "$opsys" = "cygwin"; then
5073 CYGWIN_OBJ="cygw32.o"
5074 ## Cygwin differs because of its unexec().
5076 POST_ALLOC_OBJ=lastfile.o
5077 elif test "$opsys" = "mingw32"; then
5080 POST_ALLOC_OBJ=lastfile.o
5083 PRE_ALLOC_OBJ=lastfile.o
5086 AC_SUBST(CYGWIN_OBJ)
5087 AC_SUBST(PRE_ALLOC_OBJ)
5088 AC_SUBST(POST_ALLOC_OBJ)
5090 dnl Call this 'FORTIFY_SOUR' so that it sorts before the 'FORTIFY_SOURCE'
5091 dnl verbatim defined above. The tricky name is apropos, as this hack
5092 dnl makes Fortify go sour!
5093 AH_VERBATIM([FORTIFY_SOUR],
5094 [/* Without the following workaround, Emacs runs slowly on OS X 10.8.
5095 The workaround disables some useful run-time checking, so it
5096 should be conditional to the platforms with the performance bug.
5097 Perhaps Apple will fix this some day; also see m4/extern-inline.m4. */
5098 #if defined __APPLE__ && defined __GNUC__
5099 # ifndef _DONT_USE_CTYPE_INLINE_
5100 # define _DONT_USE_CTYPE_INLINE_
5102 # ifndef _FORTIFY_SOURCE
5103 # define _FORTIFY_SOURCE 0
5108 # If user asks to omit features, disable optional features that gnulib
5109 # might otherwise enable.
5110 if test "$with_features" = no && test "$enable_acl" != yes; then
5114 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
5115 # it temporarily reverts them to their pre-pkg-config values,
5116 # because gnulib needs to work with both src (which uses the
5117 # pkg-config stuff) and lib-src (which does not). For example, gnulib
5118 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
5119 # and it therefore needs to run in an environment where LIBS does not
5120 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
5121 # for some package unrelated to lib-src.
5124 CFLAGS=$pre_PKG_CONFIG_CFLAGS
5125 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
5126 gl_ASSERT_NO_GNULIB_POSIXCHECK
5127 gl_ASSERT_NO_GNULIB_TESTS
5132 if test "${opsys}" = "mingw32"; then
5133 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I \${abs_top_srcdir}/nt/inc"
5134 # Remove unneeded switches from the value of CC that goes to Makefiles
5135 CC=`AS_ECHO(["$CC"]) | sed -e "s,$GCC_TEST_OPTIONS,,"`
5139 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
5141 cygwin) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000" ;;
5144 ## The -headerpad option tells ld (see man page) to leave room at the
5145 ## end of the header for adding load commands. Needed for dumping.
5146 ## 0x1000 is enough for roughly 52 load commands on the x86_64
5147 ## architecture (where they are 78 bytes each). The actual number of
5148 ## load commands added is not consistent but normally ranges from
5149 ## about 14 to about 34. Setting it high gets us plenty of slop and
5150 ## only costs about 1.5K of wasted binary space.
5151 headerpad_extra=1000
5152 if test "$HAVE_NS" = "yes"; then
5153 libs_nsgui="-framework AppKit"
5154 if test "$NS_IMPL_COCOA" = "yes"; then
5155 libs_nsgui="$libs_nsgui -framework IOKit"
5160 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
5162 ## This is here because src/Makefile.in did some extra fiddling around
5163 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
5164 ## LD_SWITCH_SYSTEM_TEMACS instead,
5165 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
5166 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
5169 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
5170 ## find X at run-time.
5171 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
5172 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
5173 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
5174 ## had different values in configure (in ac_link) and src/Makefile.in.
5175 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
5176 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
5179 ## Is it any better under MinGW64 to relocate emacs into higher addresses?
5180 case "$canonical" in
5181 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x400000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
5182 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
5186 *) LD_SWITCH_SYSTEM_TEMACS= ;;
5189 # -no-pie or -nopie fixes a temacs segfault on Gentoo, OpenBSD,
5190 # Ubuntu, and other systems with "hardened" GCC configurations for
5191 # some reason (Bug#18784). We don't know why this works, but not
5192 # segfaulting is better than segfaulting. Use ac_c_werror_flag=yes
5193 # when trying the option, otherwise clang keeps warning that it does
5194 # not understand it, and pre-4.6 GCC has a similar problem
5195 # (Bug#20338). Prefer -no-pie to -nopie, as -no-pie is the
5196 # spelling used by GCC 6.1.0 and later (Bug#24682).
5198 [for $CC option to disable position independent executables],
5199 [emacs_cv_prog_cc_no_pie],
5200 [emacs_save_c_werror_flag=$ac_c_werror_flag
5201 emacs_save_LDFLAGS=$LDFLAGS
5202 ac_c_werror_flag=yes
5203 for emacs_cv_prog_cc_no_pie in -no-pie -nopie no; do
5204 test $emacs_cv_prog_cc_no_pie = no && break
5205 LDFLAGS="$emacs_save_LDFLAGS $emacs_cv_prog_cc_no_pie"
5206 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], [break])
5208 ac_c_werror_flag=$emacs_save_c_werror_flag
5209 LDFLAGS=$emacs_save_LDFLAGS])
5210 if test "$emacs_cv_prog_cc_no_pie" != no; then
5211 LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS $emacs_cv_prog_cc_no_pie"
5214 if test x$ac_enable_profiling != x ; then
5216 *freebsd | gnu-linux) ;;
5217 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
5221 LD_SWITCH_SYSTEM_TEMACS="$LDFLAGS_NOCOMBRELOC $LD_SWITCH_SYSTEM_TEMACS"
5223 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
5225 ## Common for all window systems
5226 if test "$window_system" != "none"; then
5227 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
5228 AC_DEFINE(POLL_FOR_INPUT, 1, [Define if you poll periodically to detect C-g.])
5229 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
5232 AC_SUBST(WINDOW_SYSTEM_OBJ)
5234 AH_TOP([/* GNU Emacs site configuration template file.
5236 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2017
5237 Free Software Foundation, Inc.
5239 This file is part of GNU Emacs.
5241 GNU Emacs is free software: you can redistribute it and/or modify
5242 it under the terms of the GNU General Public License as published by
5243 the Free Software Foundation, either version 3 of the License, or (at
5244 your option) any later version.
5246 GNU Emacs is distributed in the hope that it will be useful,
5247 but WITHOUT ANY WARRANTY; without even the implied warranty of
5248 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
5249 GNU General Public License for more details.
5251 You should have received a copy of the GNU General Public License
5252 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
5255 /* No code in Emacs #includes config.h twice, but some bits of code
5256 intended to work with other packages as well (like gmalloc.c)
5257 think they can include it as many times as they like. */
5258 #ifndef EMACS_CONFIG_H
5259 #define EMACS_CONFIG_H
5262 AH_BOTTOM([#include <conf_post.h>
5264 #endif /* EMACS_CONFIG_H */
5273 #### Report on what we decided to do.
5274 #### Report GTK as a toolkit, even if it doesn't use Xt.
5275 #### It makes printing result more understandable as using GTK sets
5276 #### toolkit_scroll_bars to yes by default.
5277 if test "${HAVE_GTK}" = "yes"; then
5278 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
5281 if test $USE_ACL -ne 0; then
5282 ACL_SUMMARY="yes $LIB_ACL"
5287 emacs_standard_dirs='Standard dirs'
5289 Configured for '${canonical}'.
5291 Where should the build process find the source code? ${srcdir}
5292 What compiler should emacs be built with? ${CC} ${CFLAGS}
5293 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
5294 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
5295 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
5296 What window system should Emacs use? ${window_system}
5297 What toolkit should Emacs use? ${USE_X_TOOLKIT}
5298 Where do we find X Windows header files? ${x_includes:-$emacs_standard_dirs}
5299 Where do we find X Windows libraries? ${x_libraries:-$emacs_standard_dirs}"])
5302 emacs_config_features=
5303 for opt in XAW3D XPM JPEG TIFF GIF PNG RSVG CAIRO IMAGEMAGICK SOUND GPM DBUS \
5304 GCONF GSETTINGS NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT \
5305 LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS X_TOOLKIT OLDXMENU X11 NS MODULES \
5306 XWIDGETS LIBSYSTEMD CANNOT_DUMP; do
5309 CANNOT_DUMP) eval val=\${$opt} ;;
5310 NOTIFY|ACL) eval val=\${${opt}_SUMMARY} ;;
5311 TOOLKIT_SCROLL_BARS|X_TOOLKIT) eval val=\${USE_$opt} ;;
5312 *) eval val=\${HAVE_$opt} ;;
5315 xno|xnone|x) continue ;;
5320 GTK*|LUCID|MOTIF) opt=$val ;;
5325 AS_VAR_APPEND([emacs_config_features], ["$optsep$opt"])
5328 AC_DEFINE_UNQUOTED(EMACS_CONFIG_FEATURES, "${emacs_config_features}",
5329 [Summary of some of the main features enabled by configure.])
5331 AS_ECHO([" Does Emacs use -lXaw3d? ${HAVE_XAW3D}
5332 Does Emacs use -lXpm? ${HAVE_XPM}
5333 Does Emacs use -ljpeg? ${HAVE_JPEG}
5334 Does Emacs use -ltiff? ${HAVE_TIFF}
5335 Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF
5336 Does Emacs use a png library? ${HAVE_PNG} $LIBPNG
5337 Does Emacs use -lrsvg-2? ${HAVE_RSVG}
5338 Does Emacs use cairo? ${HAVE_CAIRO}
5339 Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}
5340 Does Emacs support sound? ${HAVE_SOUND}
5341 Does Emacs use -lgpm? ${HAVE_GPM}
5342 Does Emacs use -ldbus? ${HAVE_DBUS}
5343 Does Emacs use -lgconf? ${HAVE_GCONF}
5344 Does Emacs use GSettings? ${HAVE_GSETTINGS}
5345 Does Emacs use a file notification library? ${NOTIFY_SUMMARY}
5346 Does Emacs use access control lists? ${ACL_SUMMARY}
5347 Does Emacs use -lselinux? ${HAVE_LIBSELINUX}
5348 Does Emacs use -lgnutls? ${HAVE_GNUTLS}
5349 Does Emacs use -lxml2? ${HAVE_LIBXML2}
5350 Does Emacs use -lfreetype? ${HAVE_FREETYPE}
5351 Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}
5352 Does Emacs use -lotf? ${HAVE_LIBOTF}
5353 Does Emacs use -lxft? ${HAVE_XFT}
5354 Does Emacs use -lsystemd? ${HAVE_LIBSYSTEMD}
5355 Does Emacs directly use zlib? ${HAVE_ZLIB}
5356 Does Emacs have dynamic modules support? ${HAVE_MODULES}
5357 Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}
5358 Does Emacs support Xwidgets (requires gtk3)? ${HAVE_XWIDGETS}
5359 Does Emacs have threading support in lisp? ${threads_enabled}
5362 if test -n "${EMACSDATA}"; then
5363 AS_ECHO([" Environment variable EMACSDATA set to: $EMACSDATA"])
5365 if test -n "${EMACSDOC}"; then
5366 AS_ECHO([" Environment variable EMACSDOC set to: $EMACSDOC"])
5371 if test "$HAVE_NS" = "yes"; then
5373 AS_ECHO(["You must run \"${MAKE-make} install\" in order to test the built application.
5374 The installed application will go to nextstep/Emacs.app and can be
5375 run or moved from there."])
5376 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
5377 echo "The application will be fully self-contained."
5379 AS_ECHO(["The lisp resources for the application will be installed under ${prefix}.
5380 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
5381 to run if these resources are not installed."])
5386 if test "${opsys}" = "cygwin"; then
5388 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
5394 # Remove any trailing slashes in these variables.
5396 */) prefix=`AS_DIRNAME(["$prefix."])`;;
5398 case $exec_prefix in
5399 */) exec_prefix=`AS_DIRNAME(["$exec_prefix."])`;;
5402 if test "$HAVE_NS" = "yes"; then
5403 if test "$NS_IMPL_GNUSTEP" = yes; then
5404 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
5405 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
5406 ns_check_file=Resources/Info-gnustep.plist
5408 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
5409 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
5410 ns_check_file=Contents/Info.plist
5412 AC_SUBST(ns_check_file)
5415 AC_CONFIG_FILES([Makefile lib/gnulib.mk])
5417 dnl config.status treats $srcdir specially, so I think this is ok...
5418 AC_CONFIG_FILES([$srcdir/doc/man/emacs.1])
5420 m4_define([subdir_makefiles],
5421 [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])
5422 SUBDIR_MAKEFILES="subdir_makefiles"
5423 AC_CONFIG_FILES(subdir_makefiles)
5425 dnl test/ is not present in release tarfiles.
5426 opt_makefile=test/Makefile
5428 if test -f "$srcdir/$opt_makefile.in"; then
5429 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
5430 dnl Again, it's best not to use a variable. Though you can add
5431 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
5432 AC_CONFIG_FILES([test/Makefile])
5436 dnl The admin/ directory used to be excluded from tarfiles.
5437 if test -d $srcdir/admin; then
5438 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES admin/charsets/Makefile admin/unidata/Makefile admin/grammars/Makefile"
5439 AC_CONFIG_FILES([admin/charsets/Makefile])
5440 AC_CONFIG_FILES([admin/unidata/Makefile])
5441 AC_CONFIG_FILES([admin/grammars/Makefile])
5445 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
5447 AC_SUBST(SUBDIR_MAKEFILES_IN)
5449 dnl You might wonder (I did) why epaths.h is generated by running make,
5450 dnl rather than just letting configure generate it from epaths.in.
5451 dnl One reason is that the various paths are not fully expanded (see above);
5452 dnl e.g., gamedir='${localstatedir}/games/emacs'.
5453 dnl Secondly, the GNU Coding standards require that one should be able
5454 dnl to run 'make prefix=/some/where/else' and override the values set
5455 dnl by configure. This also explains the 'move-if-change' test and
5456 dnl the use of force in the 'epaths-force' rule in Makefile.in.
5457 AC_CONFIG_COMMANDS([src/epaths.h], [
5458 if test "${opsys}" = "mingw32"; then
5459 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
5461 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
5462 fi || AC_MSG_ERROR(['src/epaths.h' could not be made.])
5463 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
5465 dnl NB we have to cheat and use the ac_... version because abs_top_srcdir
5466 dnl is not yet set, sigh. Or we could use ../$srcdir/src/.gdbinit,
5468 AC_CONFIG_COMMANDS([src/.gdbinit], [
5469 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
5470 AS_ECHO(["source $ac_abs_top_srcdir/src/.gdbinit"]) > src/.gdbinit
5474 dnl Perhaps this would be better named doc-emacs-emacsver.texi?
5475 dnl See comments for etc-refcards-emacsver.tex.
5476 dnl Since we get a doc/emacs directory generated anyway, for the Makefile,
5477 dnl it is not quite the same. But we are generating in $srcdir.
5478 AC_CONFIG_COMMANDS([doc/emacs/emacsver.texi], [
5479 ${MAKE-make} -s --no-print-directory -C doc/emacs doc-emacsver || \
5480 AC_MSG_ERROR(['doc/emacs/emacsver.texi' could not be made.])
5483 dnl If we give this the more natural name, etc/refcards/emacsver.texi,
5484 dnl then a directory etc/refcards is created in the build directory,
5485 dnl which is probably harmless, but confusing (in out-of-tree builds).
5486 dnl (If we were to generate etc/refcards/Makefile, this might change.)
5487 dnl It is really $srcdir/etc/refcards/emacsver.tex that we generate.
5488 AC_CONFIG_COMMANDS([etc-refcards-emacsver.tex], [
5489 ${MAKE-make} -s MAKEFILE_NAME=do-not-make-Makefile etc-emacsver || \
5490 AC_MSG_ERROR(['etc/refcards/emacsver.tex' could not be made.])
5493 if test $AUTO_DEPEND = yes; then
5494 for dir in $AUTODEPEND_PARENTS; do
5495 AS_MKDIR_P([$dir/deps])
5501 if test ! "$with_mailutils"; then
5502 if test "$with_pop" = yes; then
5503 AC_MSG_WARN([This configuration installs a 'movemail' program
5504 that retrieves POP3 email via only insecure channels.
5505 To omit insecure POP3, you can use '$0 --without-pop'.])
5510 # Don't suggest GNU Mailutils, as it hasn't been ported.
5513 emacs_fix_movemail="use '$0 --with-mailutils'"
5514 case `(movemail --version) 2>/dev/null` in
5516 *) emacs_fix_movemail="install GNU Mailutils
5517 <http://mailutils.org> and $emacs_fix_movemail";;
5519 AC_MSG_NOTICE([You might want to $emacs_fix_movemail.]);;
5523 test "$MAKE" = make || AC_MSG_NOTICE([Now you can run '$MAKE'.])