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, 1999-2024 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 <https://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], [30.0.50], [bug-gnu-emacs@gnu.org], [],
27 [https://www.gnu.org/software/emacs/])
29 if test "$XCONFIGURE" = "android"; then
30 # configure is being called recursively to configure Emacs for
32 AC_MSG_NOTICE([called to recursively configure Emacs for Android.])
33 # Set CC to ANDROID_CC and CFLAGS to ANDROID_CFLAGS.
35 # Set -Wno-implicit-function-declaration. Building Emacs for older
36 # versions of Android requires configure tests to fail if the
37 # functions are not defined, as the Android library in the NDK
38 # defines subroutines that are not available in the headers being
40 CFLAGS="$ANDROID_CFLAGS -Werror=implicit-function-declaration"
41 # Don't explicitly enable support for large files unless Emacs is
42 # being built for API 21 or later. Otherwise, mmap does not work.
44 # Moreover, 64-bit variants of file IO functions in the C library are
45 # liable to fail with ENOSYS or EINVAL on earlier API versions, and as
46 # such their definitions must be explicitly disabled on NDK releases
47 # that enable them by default.
48 AS_IF([test "$ANDROID_SDK" -lt "21"], [
49 CFLAGS="$CFLAGS -D_FILE_OFFSET_BITS=32"
54 dnl Set emacs_config_options to the options of 'configure', quoted for the shell,
55 dnl and then quoted again for a C string. Separate options with spaces.
56 dnl Add some environment variables, if they were passed via the environment
57 dnl rather than on the command-line.
60 dnl This is the documented way to record the args passed to configure,
61 dnl rather than $ac_configure_args.
62 for opt in "$@" CFLAGS CPPFLAGS LDFLAGS; do
64 -n | --no-create | --no-recursion)
66 CFLAGS | CPPFLAGS | LDFLAGS)
67 eval 'test "${'$opt'+set}" = set' || continue
69 *" $opt="*) continue ;;
71 eval opt=$opt=\$$opt ;;
74 emacs_shell_specials=$IFS\''"#$&()*;<>?@<:@\\`{|~'
76 *[["$emacs_shell_specials"]]*)
79 emacs_quote_apostrophes="s/'/'\\\\''/g"
80 opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_apostrophes"` ;;
85 emacs_quote_for_c='s/[["\\]]/\\&/g; $!s/$/\\n\\/'
86 opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_for_c"` ;;
89 AS_VAR_APPEND([emacs_config_options], ["$optsep$opt"])
93 AC_CONFIG_HEADERS([src/config.h:src/config.in])
94 AC_CONFIG_SRCDIR([src/lisp.h])
95 AC_CONFIG_AUX_DIR([build-aux])
96 AC_CONFIG_MACRO_DIR([m4])
99 AC_CHECK_PROGS([XCRUN], [xcrun])
100 if test -n "$XCRUN"; then
101 if test -z "$MAKE"; then
102 dnl Call the variable MAKE_PROG, not MAKE, to avoid confusion with
103 dnl the usual MAKE variable that 'make' itself uses.
104 AC_CHECK_PROG([MAKE_PROG], [make], [yes])
105 if test -z "$MAKE_PROG"; then
108 xcsdkdir=`$XCRUN --show-sdk-path 2>/dev/null`
113 dnl Check for GNU Make and possibly set MAKE.
114 [emacs_check_gnu_make ()
116 emacs_makeout=`($1 --version) 2>/dev/null` &&
117 case $emacs_makeout in
118 'GNU Make '3.8[1-9]* | 'GNU Make '3.9[0-9]* | \
119 'GNU Make '3.[1-9][0-9][0-9]* | 'GNU Make '[4-9]* | 'GNU Make '[1-9][0-9]* )
120 ac_path_MAKE_found=:;;
123 AC_CACHE_CHECK([for GNU Make], [ac_cv_path_MAKE],
124 [ac_path_MAKE_found=false
125 if test -n "$MAKE"; then
126 emacs_check_gnu_make "$MAKE"
127 ac_cv_path_MAKE=$MAKE
129 emacs_tried_make=false
130 emacs_tried_gmake=false
131 emacs_tried_gnumake=false
132 AC_PATH_PROGS_FEATURE_CHECK([MAKE], [make gmake gnumake],
133 [[emacs_check_gnu_make "$ac_path_MAKE"
134 if $ac_path_MAKE_found; then
135 # Use the fully-qualified program name only if the basename
136 # would not resolve to it.
137 if eval \$emacs_tried_$ac_prog; then
138 ac_cv_path_MAKE=$ac_path_MAKE
140 ac_cv_path_MAKE=$ac_prog
143 eval emacs_tried_$ac_prog=:]])
145 $ac_path_MAKE_found || {
146 AC_MSG_ERROR([[Building Emacs requires GNU Make, at least version 3.81.
147 If you have it installed under another name, configure with 'MAKE=...'.
148 For example, run '$0 MAKE=gnu-make'.]])
150 MAKE=$ac_cv_path_MAKE
153 dnl Canonicalize the configuration name.
154 if test "$XCONFIGURE" = "android"; then
155 dnl Set host to whatever Android system Emacs is being configured
156 dnl for. Determine this by looking at the output of ANDROID_CC.
158 AC_MSG_CHECKING([the cross-compiler's target])
159 cc_target=`${CC} -v 2>&1 | sed -n 's/Target: //p'`
161 *android*) host_alias=$cc_target
163 *) AC_MSG_ERROR([The cross compiler does not compile for Android.
164 Please verify that you specified the correct compiler in the ANDROID_CC
165 variable when you ran configure.])
168 AC_MSG_RESULT([$host_alias])
174 AS_IF([test "$XCONFIGURE" = "android"],[
175 # Initialize the Android NDK build system. Make sure to use the
176 # passed through NDK path.
177 # Make sure to pass through the CFLAGS, as older versions of the
178 # NDK require them to be able to find system includes.
179 with_ndk_path="$android_ndk_path"
180 with_ndk_cxx="$android_ndk_cxx"
181 ndk_INIT([$android_abi], [$ANDROID_SDK], [cross/ndk-build],
184 # At the same time, configure libexec with the build directory
188 # Enter exec and configure it, using the C compiler as both the
189 # assembler and the linker. Determine the absolute name of the
191 # N.B. that the linker is actually cc, so pass -nostdlib, lest
192 # the crt be linked in. Likewise for as.
194 AS_CASE([$srcdir], [.], [emacs_srcdir=`pwd`],
195 [[[\\/]* | ?:[\\/]*]], [emacs_srcdir=$srcdir],
196 [*], [emacs_srcdir=`pwd`/$srcdir])
198 AC_MSG_NOTICE([configuring in `exec'])
202 $CONFIG_SHELL $emacs_srcdir/exec/configure \
203 --host=$host "CC=$CC" "LD=$CC" "AS=$CC" \
204 "AR=$AR" "CFLAGS=$CFLAGS"
208 AS_IF([test "$emacs_val" != "0"],
209 [AC_MSG_ERROR([failed to configure in `exec'])])
215 if test -z "$host_alias"; then
217 # No --host argument was given to 'configure'; therefore $host
218 # was set to a default value based on the build platform. But
219 # this default value may be wrong if we are building from a
220 # 64-bit MSYS[2] pre-configured to build 32-bit MinGW programs.
221 # Therefore, we'll try to get the right host platform from the
224 AC_MSG_CHECKING([the compiler's target])
225 if test -z "$CC"; then
230 cc_target=`$cc -v 2>&1 | sed -n 's/Target: //p'`
234 "") AC_MSG_ERROR([Impossible to obtain $cc compiler target.
235 Please explicitly provide --host.])
237 *) AC_MSG_WARN([Compiler reported non-standard target.
238 Defaulting to $host.])
241 AC_MSG_RESULT([$host])
244 . $srcdir/nt/mingw-cfg.site
248 # srcdir is an absolute path. In this case, force the format
249 # "/c/foo/bar", to simplify later conversions to native Windows
250 # format ("c:/foo/bar").
251 srcdir=`cd "${srcdir}" && pwd -W`
252 # 'eval' pacifies strict POSIX non-MinGW shells (Bug#18612).
253 # We downcase the drive letter to avoid warnings when
254 # generating autoloads.
255 eval 'srcdir=/`echo ${srcdir:0:1} | sed "y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/"`"${srcdir:2}"'
261 configuration=${host_alias-${build_alias-$host}}
262 emacs_uname_r=`uname -r`
264 dnl Support for --program-prefix, --program-suffix and
265 dnl --program-transform-name options
268 dnl It is important that variables on the RHS not be expanded here,
269 dnl hence the single quotes. This is per the GNU coding standards, see
270 dnl (autoconf) Installation Directory Variables
271 dnl See also epaths.h below.
272 lispdirrel='${version}/lisp'
273 lispdir='${datadir}/emacs/'${lispdirrel}
274 standardlisppath='${lispdir}'
275 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
276 '${datadir}/emacs/site-lisp'
277 lisppath='${locallisppath}:${standardlisppath}'
278 etcdir='${datadir}/emacs/${version}/etc'
279 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
280 etcdocdir='${datadir}/emacs/${version}/etc'
281 gamedir='${localstatedir}/games/emacs'
283 dnl Special option to disable the most of other options.
285 [AS_HELP_STRING([--without-all],
286 [omit almost all features and build
287 small executable with minimal dependencies])],
288 [with_features=$withval],
291 dnl ARCH_INDEPENDENT_CONFIG_FILES(FILE...)
292 dnl Like AC_CONFIG_FILES(FILE). However, do not generate this
293 dnl if configure is being called recursively in preparation
294 dnl for cross-compilation.
295 AC_DEFUN([ARCH_INDEPENDENT_CONFIG_FILES], [
296 AS_IF([test "$XCONFIGURE" != "android"], [AC_CONFIG_FILES([$1])])])
298 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
299 dnl Create a new --with option that defaults to being disabled.
300 dnl NAME is the base name of the option. The shell variable with_NAME
301 dnl will be set to either the user's value (if the option is
302 dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
303 dnl option is not specified). Note that the shell variable name is
304 dnl constructed as autoconf does, by replacing non-alphanumeric
305 dnl characters with "_".
306 dnl HELP-STRING is the help text for the option.
307 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
308 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
309 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
312 dnl OPTION_DEFAULT_IFAVAILABLE(NAME, HELP-STRING)
313 dnl Create a new --with option that defaults to 'ifavailable',
314 dnl unless it is overridden by $with_features being equal to 'no'.
315 dnl NAME is the base name of the option. The shell variable with_NAME
316 dnl will be set to either the user's value (if the option is
317 dnl specified; 'yes' for a plain --with-NAME) or to 'ifavailable' (if the
318 dnl option is not specified). Note that the shell variable name is
319 dnl constructed as autoconf does, by replacing non-alphanumeric
320 dnl characters with "_".
321 dnl HELP-STRING is the help text for the option.
322 AC_DEFUN([OPTION_DEFAULT_IFAVAILABLE], [dnl
323 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
324 AS_IF([test "$with_features" != no],
325 [m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=ifavailable],
326 [m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
330 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
331 dnl Create a new --with option that defaults to $with_features.
332 dnl NAME is the base name of the option. The shell variable with_NAME
333 dnl will be set either to 'no' (for a plain --without-NAME) or to
334 dnl 'yes' (if the option is not specified). Note that the shell
335 dnl variable name is constructed as autoconf does, by replacing
336 dnl non-alphanumeric characters with "_".
337 dnl HELP-STRING is the help text for the option.
338 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
339 AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
340 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=$with_features])dnl
343 # For retrieving mail, unencrypted network connections are the default
344 # only on native MS-Windows platforms. (FIXME: These platforms should
345 # also be secure by default.)
347 AC_ARG_WITH([mailutils],
348 [AS_HELP_STRING([--with-mailutils],
349 [rely on GNU Mailutils, so that the --without-pop through --with-mailhost
350 options are irrelevant; this is the default if GNU Mailutils is
353 [AS_IF([test "$with_features" != "no"],
354 [with_mailutils=yes-unless-android
355 AS_IF([test "x$XCONFIGURE" != "xandroid"],
356 [(movemail --version) >/dev/null 2>&1 || with_mailutils=no],
357 [dnl Don't check for movemail if cross-compiling.
358 dnl instead, default to false.
359 with_mailutils=no])])])
362 [AS_HELP_STRING([--with-pop],
363 [Support POP mail retrieval if Emacs movemail is used (not recommended,
364 as Emacs movemail POP is insecure). This is the default only on
365 native MS-Windows and Android.])],
367 dnl Enable movemail POP support on Android as GNU Mailutils is
368 dnl normally unavailable on that platform.
370 [*-mingw*|*android*], [with_pop=yes],
371 [with_pop=no-by-default])])
372 if test "$with_pop" = yes; then
373 AC_DEFINE([MAIL_USE_POP])
375 AH_TEMPLATE([MAIL_USE_POP], [Define to support POP mail retrieval.])dnl
377 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
378 if test "$with_kerberos" != no; then
379 AC_DEFINE([KERBEROS])
381 AH_TEMPLATE([KERBEROS],
382 [Define to support Kerberos-authenticated POP mail retrieval.])dnl
384 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
385 if test "${with_kerberos5}" != no; then
386 if test "${with_kerberos}" = no; then
388 AC_DEFINE([KERBEROS])
390 AC_DEFINE([KERBEROS5], [1],
391 [Define to use Kerberos 5 instead of Kerberos 4.])
394 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
395 dnl FIXME hesiod support may not be present, so it seems like an error
396 dnl to define, or at least use, this unconditionally.
397 if test "$with_hesiod" != no; then
398 AC_DEFINE([HESIOD], [1],
399 [Define to support using a Hesiod database to find the POP server.])
402 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
403 if test "$with_mail_unlink" != no; then
404 AC_DEFINE([MAIL_UNLINK_SPOOL], [1],
405 [Define to unlink, rather than empty, mail spool after reading.])
408 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
409 [string giving default POP mail host])],
410 AC_DEFINE_UNQUOTED([MAILHOST], ["$withval"],
411 [String giving fallback POP mail host.]))
413 AC_ARG_WITH([sound],[AS_HELP_STRING([--with-sound=VALUE],
414 [compile with sound support (VALUE one of: yes, alsa, oss, bsd-ossaudio, no;
415 default yes). Only for GNU/Linux, FreeBSD, NetBSD, MinGW, Cygwin.])],
416 [ case "${withval}" in
417 yes|no|alsa|oss|bsd-ossaudio) val=$withval ;;
418 *) AC_MSG_ERROR(['--with-sound=$withval' is invalid;
419 this option's value should be 'yes', 'no', 'alsa', 'oss', or 'bsd-ossaudio'.])
424 [with_sound=$with_features])
426 AC_ARG_WITH([pdumper],
428 [--with-pdumper=VALUE],
429 [enable pdumper support unconditionally
430 ('yes', 'no', or 'auto': default 'auto')]),
431 [ case "${withval}" in
432 yes|no|auto) val=$withval ;;
434 ['--with-pdumper=$withval' is invalid;
435 this option's value should be 'yes' or 'no'.]) ;;
441 AC_ARG_WITH([unexec],
443 [--with-unexec=VALUE],
444 [enable unexec support unconditionally
445 ('yes', 'no', or 'auto': default 'auto')]),
446 [ case "${withval}" in
447 yes|no|auto) val=$withval ;;
449 ['--with-unexec=$withval' is invalid;
450 this option's value should be 'yes' or 'no'.]) ;;
456 AC_ARG_WITH([dumping],[AS_HELP_STRING([--with-dumping=VALUE],
457 [kind of dumping to use for initial Emacs build
458 (VALUE one of: pdumper, unexec, none; default pdumper)])],
459 [ case "${withval}" in
460 pdumper|unexec|none) val=$withval ;;
461 *) AC_MSG_ERROR(['--with-dumping=$withval is invalid;
462 this option's value should be 'pdumper', 'unexec', or 'none'.])
467 [with_dumping=pdumper])
469 if test "$with_pdumper" = "auto"; then
470 if test "$with_dumping" = "pdumper"; then
477 if test "$with_unexec" = "auto"; then
478 if test "$with_dumping" = "unexec"; then
485 if test "$with_dumping" = "pdumper" && test "$with_pdumper" = "no"; then
486 AC_MSG_ERROR(['--with-dumping=pdumper' requires pdumper support])
489 if test "$with_dumping" = "unexec" && test "$with_unexec" = "no"; then
490 AC_MSG_ERROR(['--with-dumping=unexec' requires unexec support])
493 if test "$with_pdumper" = "yes"; then
494 AC_DEFINE([HAVE_PDUMPER], [1],
495 [Define to build with portable dumper support])
500 AC_SUBST([HAVE_PDUMPER])
502 DUMPING=$with_dumping
505 dnl FIXME currently it is not the last.
506 dnl This should be the last --with option, because --with-x is
507 dnl added later on when we find the file name of X, and it's best to
508 dnl keep them together visually.
509 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
510 [use an X toolkit (KIT one of: yes or gtk, gtk2, gtk3, lucid or athena, motif, no)])],
511 [ case "${withval}" in
512 y | ye | yes ) val=gtk ;;
514 l | lu | luc | luci | lucid ) val=lucid ;;
515 a | at | ath | athe | athen | athena ) val=athena ;;
516 m | mo | mot | moti | motif ) val=motif ;;
517 g | gt | gtk ) val=gtk ;;
521 AC_MSG_ERROR(['--with-x-toolkit=$withval' is invalid;
522 this option's value should be 'yes', 'no', 'lucid', 'athena', 'motif', 'gtk',
523 'gtk2' or 'gtk3'. 'yes' and 'gtk' are synonyms.
524 'athena' and 'lucid' are synonyms.])
530 OPTION_DEFAULT_OFF([wide-int],
531 [prefer wide Emacs integers (typically 62-bit);
532 on 32-bit hosts, this allows buffer and string size up to 2GB,
533 at the cost of 10% to 30% slowdown of Lisp interpreter
534 and larger memory footprint])
535 if test "$with_wide_int" = yes; then
536 AC_DEFINE([WIDE_EMACS_INT], [1], [Use long long for EMACS_INT if available.])
539 dnl _ON results in a '--without' option in the --help output, so
540 dnl the help text should refer to "don't compile", etc.
541 with_xpm_set=${with_xpm+set}
542 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
543 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
544 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
545 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
546 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
547 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
548 OPTION_DEFAULT_ON([webp],[don't compile with WebP image support])
549 OPTION_DEFAULT_ON([sqlite3],[don't compile with sqlite3 support])
550 OPTION_DEFAULT_ON([lcms2],[don't compile with Little CMS support])
551 OPTION_DEFAULT_ON([libsystemd],[don't compile with libsystemd support])
552 OPTION_DEFAULT_ON([cairo],[don't compile with Cairo drawing])
553 OPTION_DEFAULT_OFF([cairo-xcb], [use XCB surfaces for Cairo support])
554 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
555 OPTION_DEFAULT_OFF([imagemagick],[compile with ImageMagick image support])
556 OPTION_DEFAULT_ON([native-image-api], [don't use native image APIs (GDI+ on Windows)])
557 OPTION_DEFAULT_IFAVAILABLE([tree-sitter], [compile with tree-sitter])
559 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
560 OPTION_DEFAULT_ON([harfbuzz],[don't use HarfBuzz for text shaping])
561 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
562 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
564 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif/Xaw3d/GTK toolkit scroll bars])
565 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
566 OPTION_DEFAULT_ON([xim],[at runtime, default X11 XIM to off])
567 OPTION_DEFAULT_ON([xdbe],[don't use X11 double buffering support])
568 AC_ARG_WITH([ns],[AS_HELP_STRING([--with-ns],
569 [use Nextstep (macOS Cocoa or GNUstep) windowing system.
570 On by default on macOS.])],[],[with_ns=maybe])
571 OPTION_DEFAULT_OFF([w32], [use native MS Windows GUI in a Cygwin build])
572 OPTION_DEFAULT_OFF([pgtk], [use GTK to support window systems other than X])
574 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
575 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
576 AC_ARG_WITH([gconf],[AS_HELP_STRING([--with-gconf],
577 [compile with Gconf support (Gsettings replaces this)])],[],
578 [if test $with_features = yes; then
583 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
584 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
585 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
586 OPTION_DEFAULT_ON([zlib],[don't compile with zlib decompression support])
587 OPTION_DEFAULT_ON([modules],[don't compile with dynamic modules support])
588 OPTION_DEFAULT_ON([threads],[don't compile with elisp threading support])
589 OPTION_DEFAULT_OFF([cygwin32-native-compilation],[use native compilation on 32-bit Cygwin])
590 OPTION_DEFAULT_ON([xinput2],[don't use version 2 of the X Input Extension for input])
591 OPTION_DEFAULT_OFF([small-ja-dic],[generate a smaller-size Japanese dictionary])
592 OPTION_DEFAULT_OFF([android],[cross-compile Android application package])
593 OPTION_DEFAULT_ON([android-debug],[don't build Emacs as a debug package on Android])
595 # Find out of Android support is enabled and mailutils has defaulted
596 # to `yes-unless-android'. Disable it if so.
598 AS_IF([test "x$with_mailutils" = "xyes-unless-android"],
599 [AS_IF([test "x$with_android" != "xno"],
601 [with_mailutils=yes])])
603 # Clear with_mailutils if it's set to no.
605 AS_IF([test "$with_mailutils" = no],
608 AS_IF([test x"$with_mailutils" = xyes],
609 [AC_DEFINE([HAVE_MAILUTILS], [1],
610 [Define to 1 if Emacs was configured with mailutils])])
612 AC_SUBST([with_mailutils])
614 AC_ARG_WITH([shared-user-id],
615 [AS_HELP_STRING([--with-shared-user-id=ID],
616 [use the given shared user ID in Android builds])])
618 AC_ARG_WITH([file-notification],[AS_HELP_STRING([--with-file-notification=LIB],
619 [use a file notification library (LIB one of: yes, inotify, kqueue, gfile, w32, no)])],
620 [ case "${withval}" in
621 y | ye | yes ) val=yes ;;
623 i | in | ino | inot | inoti | inotif | inotify ) val=inotify ;;
624 k | kq | kqu | kque | kqueu | kqueue ) val=kqueue ;;
625 g | gf | gfi | gfil | gfile ) val=gfile ;;
626 w | w3 | w32 ) val=w32 ;;
627 * ) AC_MSG_ERROR(['--with-file-notification=$withval' is invalid;
628 this option's value should be 'yes', 'no', 'inotify', 'kqueue', 'gfile' or 'w32'.
629 'yes' is a synonym for 'w32' on MS-Windows, for 'no' on Nextstep,
630 otherwise for the first of 'inotify', 'kqueue' or 'gfile' that is usable.])
633 with_file_notification=$val
635 [with_file_notification=$with_features])
637 OPTION_DEFAULT_OFF([xwidgets],
638 [enable use of xwidgets in Emacs buffers (requires gtk3 or macOS Cocoa)])
640 OPTION_DEFAULT_OFF([be-app],
641 [enable use of Haiku's Application Kit as a window system])
643 OPTION_DEFAULT_OFF([be-cairo],
644 [enable use of cairo under Haiku's Application Kit])
646 ## Makefile.in needs the cache file name.
647 AC_SUBST([cache_file])
649 ## This is an option because I do not know if all info/man support
650 ## compressed files, nor how to test if they do so.
651 OPTION_DEFAULT_ON([compress-install],
652 [don't compress some files (.el, .info, etc.) when installing. Equivalent to:
653 make GZIP_PROG= install])
655 AC_ARG_WITH([gameuser],
656 [AS_HELP_STRING([--with-gameuser=USER_OR_GROUP],
657 [user for shared game score files.
658 An argument prefixed by ':' specifies a group instead.])])
661 case ${with_gameuser} in
663 yes) gamegroup=games ;;
664 :*) gamegroup=${with_gameuser#:} ;;
665 *) gameuser=${with_gameuser} ;;
668 AC_ARG_WITH([gnustep-conf],
669 [AS_HELP_STRING([--with-gnustep-conf=FILENAME],
670 [name of GNUstep configuration file to use on systems where the command
671 'gnustep-config' does not work; default $GNUSTEP_CONFIG_FILE, or
672 /etc/GNUstep/GNUstep.conf])])
673 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
674 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
675 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
676 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
678 AC_ARG_ENABLE([ns-self-contained],
679 [AS_HELP_STRING([--disable-ns-self-contained],
680 [disable self contained build under NeXTstep])],
681 [EN_NS_SELF_CONTAINED=$enableval],
682 [EN_NS_SELF_CONTAINED=yes])
685 AC_ARG_ENABLE([locallisppath],
686 [AS_HELP_STRING([--enable-locallisppath=PATH],
687 [directories Emacs should search for lisp files specific
689 [if test "${enableval}" = "no"; then
691 elif test "${enableval}" != "yes"; then
692 locallisppath=${enableval} locallisppathset=yes
695 AC_ARG_ENABLE([checking],
696 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
697 [enable expensive checks. With LIST,
698 enable only specific categories of checks.
699 Categories are: all,yes,no.
700 Flags are: stringbytes, stringoverrun, stringfreelist,
702 [ac_checking_flags="${enableval}"],[])
703 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
705 for check in $ac_checking_flags
708 # these set all the flags to specific states
709 yes) ac_enable_checking=1 ;;
710 no) ac_enable_checking= ;
712 ac_gc_check_stringbytes= ;
713 ac_gc_check_string_overrun= ;
714 ac_gc_check_string_free_list= ;
716 all) ac_enable_checking=1 ;
718 ac_gc_check_stringbytes=1 ;
719 ac_gc_check_string_overrun=1 ;
720 ac_gc_check_string_free_list=1 ;
722 # these enable particular checks
723 stringbytes) ac_gc_check_stringbytes=1 ;;
724 stringoverrun) ac_gc_check_string_overrun=1 ;;
725 stringfreelist) ac_gc_check_string_free_list=1 ;;
726 structs) CHECK_STRUCTS=true ;;
727 glyphs) ac_glyphs_debug=1 ;;
728 *) AC_MSG_ERROR([unknown check category $check]) ;;
733 # This environment variable is used to signal that checking should be
734 # enabled on Android. When that happens, simply enable checking for
735 # the cross-compiled Android binary.
737 AS_IF([test "x$XCONFIGURE" = "xandroid" \
738 && test "x$android_enable_checking" = "xyes"],
739 [ac_enable_checking=yes])
741 # There is little point in enabling checking in the build machine if
742 # cross-compiling for Android.
743 AS_IF([test "$with_android" = no || test -n "$XCONFIGURE"],[
744 if test x$ac_enable_checking != x ; then
745 AC_DEFINE([ENABLE_CHECKING], [1],
746 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
748 if $CHECK_STRUCTS; then
749 AC_DEFINE([CHECK_STRUCTS], [1],
750 [Define this to check whether someone updated the portable dumper
751 code after changing the layout of a structure that it uses.
752 If you change one of these structures, check that the pdumper.c
753 code is still valid, and update the pertinent hash in pdumper.c
754 by manually copying the hash from the newly-generated dmpstruct.h.])
756 AC_SUBST([CHECK_STRUCTS])
757 if test x$ac_gc_check_stringbytes != x ; then
758 AC_DEFINE([GC_CHECK_STRING_BYTES], [1],
759 [Define this temporarily to hunt a bug. If defined, the size of
760 strings is redundantly recorded in sdata structures so that it can
761 be compared to the sizes recorded in Lisp strings.])
763 if test x$ac_gc_check_string_overrun != x ; then
764 AC_DEFINE([GC_CHECK_STRING_OVERRUN], [1],
765 [Define this to check for short string overrun.])
767 if test x$ac_gc_check_string_free_list != x ; then
768 AC_DEFINE([GC_CHECK_STRING_FREE_LIST], [1],
769 [Define this to check the string free list.])
771 if test x$ac_glyphs_debug != x ; then
772 AC_DEFINE([GLYPH_DEBUG], [1],
773 [Define this to enable glyphs debugging code.])
775 ],[AS_IF([test "x$ac_enable_checking" != x],
776 [android_enable_checking=yes
777 export android_enable_checking])])
779 dnl The name of this option is unfortunate. It predates, and has no
780 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
781 dnl Actually, it stops it working.
782 dnl https://lists.gnu.org/r/emacs-devel/2012-11/msg00393.html
783 AC_ARG_ENABLE([profiling],
784 [AS_HELP_STRING([--enable-profiling],
785 [build emacs with low-level, gprof profiling support.
786 Mainly useful for debugging Emacs itself. May not work on
787 all platforms. Stops profiler.el working.])],
788 [ac_enable_profiling="${enableval}"],[])
789 if test x$ac_enable_profiling != x ; then
790 PROFILING_CFLAGS="-DPROFILING=1 -pg"
794 AC_SUBST([PROFILING_CFLAGS])
796 AC_ARG_ENABLE([autodepend],
797 [AS_HELP_STRING([--enable-autodepend],
798 [automatically generate dependencies to .h-files.
799 Requires gcc, enabled if found.])],
800 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
802 AC_ARG_ENABLE([gtk-deprecation-warnings],
803 [AS_HELP_STRING([--enable-gtk-deprecation-warnings],
804 [Show Gtk+/Gdk deprecation warnings for Gtk+ >= 3.0])],
805 [ac_enable_gtk_deprecation_warnings="${enableval}"],[])
808 AC_ARG_ENABLE([build-details],
809 [AS_HELP_STRING([--disable-build-details],
810 [Make the build more deterministic by omitting host
811 names, time stamps, etc. from the output.])],
812 [test "$enableval" = no && BUILD_DETAILS=--no-build-details])
813 AC_SUBST([BUILD_DETAILS])
815 # JAVA_PUSH_LINT(OPT)
816 # -------------------
817 # Check if javac supports the diagnostic flag -Xlint:OPT.
818 # If it does, add it to WARN_JAVAFLAGS.
820 AC_DEFUN([JAVA_PUSH_LINT],
822 AC_CACHE_CHECK([whether Java compiler accepts -Xlint:$1],
823 [emacs_cv_javac_knows_lint_$1],
824 AS_IF([rm -f conftest.class
825 cat << EOF > conftest.java
833 ("$JAVAC" -Xlint:$1 conftest.java 2>&AS_MESSAGE_LOG_FD) \
834 && rm -f conftest.class], [emacs_cv_javac_knows_lint_$1=yes],
835 [emacs_cv_javac_knows_lint_$1=no]))
837 AS_IF([test "$emacs_cv_javac_knows_lint_$1" = "yes"],
838 [WARN_JAVAFLAGS="$WARN_JAVAFLAGS -Xlint:$1"])
841 # Start Android configuration. This is done in three steps:
843 # First, the SDK tools needed to build the Android package on the host
846 # Then, configure is called inside itself with the NDK C and C++
847 # compilers, and the Makefiles generated, along with config.h, are
848 # renamed to end with .android.
850 # Finally, configure continues to configure the Emacs binary that will
863 ANDROID_SHARED_USER_ID=
864 ANDROID_SHARED_USER_NAME=
867 # This is a list of Makefiles that have alternative versions for
869 android_makefiles="lib/Makefile lib/gnulib.mk lib-src/Makefile src/Makefile"
871 # This is whether or not to package mailutils into the executable.
874 AC_ARG_VAR([ANDROID_CC], [The Android C cross-compiler.])
875 AC_ARG_VAR([SDK_BUILD_TOOLS], [Name of directory holding Android SDK build-tools.])
876 AC_ARG_VAR([ANDROID_CFLAGS], [Flags given to the Android C cross-compiler.])
877 AC_ARG_VAR([JAVAC], [Java compiler path. Used for Android.])
878 AC_ARG_VAR([JARSIGNER], [Java package signer path. Used for Android.])
879 AC_ARG_VAR([APKSIGNER], [Android package signer path. Used for Android.])
880 AC_ARG_VAR([SDK_BUILD_TOOLS], [Path to the Android SDK build tools.])
882 if test "$with_android" = "yes"; then
883 AC_MSG_ERROR([Please specify the path to the Android.jar file, like so:
885 ./configure --with-android=/path/to/android.jar
887 along with the path to the SDK build-tools (this is the directory with
888 tools such as aapt, dx, and aidl):
890 SDK_BUILD_TOOLS=/path/to/sdk-build-tools
892 The cross-compiler should then be specified:
894 ANDROID_CC=/path/to/armv7a-linux-androideabi19-clang
896 In addition, you may pass any special arguments to the cross-compiler
897 via the ANDROID_CFLAGS environment variable.])
898 elif test "$with_android" = "no" || test "$with_android" = ""; then
901 AC_CHECK_PROGS([JAVAC], [javac])
902 if test "$JAVAC" = ""; then
903 AC_MSG_ERROR([The Java compiler required to build Emacs was not found.
904 Please make sure `javac' can be found on your path, or alternatively specify
905 the path to your Java compiler before configuring Emacs, like so:
907 JAVAC=/opt/jdk/bin/javac ./configure --with-android])
910 AC_CHECK_PROGS([JARSIGNER], [jarsigner])
911 if test "$JARSIGNER" = ""; then
912 AC_MSG_ERROR([The Java package signing utility was not found.
913 Please make sure `jarsigner' can be found on your path, or alternatively
914 specify its location before configuring Emacs, like so:
916 JARSIGNER=/opt/jdk/bin/jarsigner ./configure --with-android])
919 AC_CACHE_CHECK([whether the Java compiler works],
920 [emacs_cv_working_javac],
921 AS_IF([rm -f conftest.class
922 cat << EOF > conftest.java
924 import android.app.Activity;
925 import android.os.Bundle;
927 class conftest extends Activity
931 onCreate (Bundle savedInstanceState)
933 super.onCreate (savedInstanceState);
938 ("$JAVAC" -classpath "$with_android" -target 1.7 -source 1.7 conftest.java \
939 -d . >&AS_MESSAGE_LOG_FD 2>&1) && test -s conftest.class && rm -f conftest.class],
940 [emacs_cv_working_javac=yes],
941 [emacs_cv_working_javac=no]))
943 if test "$emacs_cv_working_javac" = "no"; then
944 AC_MSG_ERROR([The Java compiler does not work, or you did not specify
945 a valid path to android.jar. See config.log for more details.])
948 AC_CACHE_CHECK([whether android.jar is new enough],
949 [emacs_cv_android_u_or_later],
950 AS_IF([rm -f conftest.class
951 cat << EOF > conftest.java
953 import android.os.Build;
957 private static int test = Build.VERSION_CODES.UPSIDE_DOWN_CAKE;
961 ("$JAVAC" -classpath "$with_android" -target 1.7 -source 1.7 conftest.java \
962 -d . >&AS_MESSAGE_LOG_FD 2>&1) && test -s conftest.class && rm -f conftest.class],
963 [emacs_cv_android_u_or_later=yes],
964 [emacs_cv_android_u_or_later=no]))
966 if test "$emacs_cv_android_u_or_later" = "no"; then
967 AC_MSG_ERROR([Emacs must be built with an android.jar file produced for \
968 Android 14 (Upside Down Cake) or later.])
971 dnl See if the Java compiler supports the `--release' option which
972 dnl makes it check for and prevent using features introduced after
975 AC_CACHE_CHECK([whether javac accepts --release 7],
976 [emacs_cv_javac_release_7], AS_IF([rm -f conftest.class
977 cat << EOF > conftest.java
985 ("$JAVAC" --release 7 conftest.java 2>&AS_MESSAGE_LOG_FD) \
986 && rm -f conftest.class],
987 [emacs_cv_javac_release_7=yes],
988 [emacs_cv_javac_release_7=no]))
990 if test "$emacs_cv_javac_release_7" = "yes"; then
991 WARN_JAVAFLAGS="$WARN_JAVAFLAGS --release 7"
993 dnl If not, just make sure the generated bytecode is correct.
994 WARN_JAVAFLAGS="$WARN_JAVAFLAGS -target 1.7 -source 1.7"
997 dnl Enable some useful Java linting options.
998 JAVA_PUSH_LINT([deprecation])
999 JAVA_PUSH_LINT([cast])
1000 JAVA_PUSH_LINT([divzero])
1001 JAVA_PUSH_LINT([nonempty])
1002 JAVA_PUSH_LINT([empty])
1003 JAVA_PUSH_LINT([finally])
1004 JAVA_PUSH_LINT([overrides])
1005 JAVA_PUSH_LINT([path])
1006 JAVA_PUSH_LINT([serial])
1007 JAVA_PUSH_LINT([unchecked])
1009 # Get the name of the android.jar file.
1010 ANDROID_JAR="$with_android"
1012 # Substitute this into java/Makefile.
1013 AC_SUBST([WARN_JAVAFLAGS])
1015 AC_PATH_PROGS([AAPT], [aapt], [], "${SDK_BUILD_TOOLS}:$PATH")
1016 if test "$AAPT" = ""; then
1017 AC_MSG_ERROR([The Android asset packaging tool was not found.
1018 Please verify that the path to the SDK build tools you specified is correct])
1021 AC_PATH_PROGS([APKSIGNER], [apksigner], [], "${SDK_BUILD_TOOLS}:$PATH")
1022 if test "$APKSIGNER" = ""; then
1023 AC_MSG_ERROR([The Android package signing tool was not found.
1024 Please verify that the path to the SDK build tools you specified is correct])
1027 AC_PATH_PROGS([D8], [d8], [], "${SDK_BUILD_TOOLS}:$PATH")
1028 if test "D8" = ""; then
1029 AC_MSG_ERROR([The Android dexer was not found.
1030 Please verify that the path to the SDK build tools you specified is correct])
1033 # Locate any d8.jar within the SDK build tools directory. The R8
1034 # optimizing compiler is also present in this bundle, and it generates
1035 # far superior code.
1036 emacs_val=`which $D8`
1037 emacs_val=`AS_DIRNAME([$emacs_val])`/lib/d8.jar
1038 AS_IF([test -f "$emacs_val"],
1039 [AC_CACHE_CHECK([whether d8.jar coresident with d8 binary provides r8],
1040 [emacs_cv_d8_provides_r8],
1041 [AS_IF([java -cp "$emacs_val" com.android.tools.r8.R8 --help &>/dev/null],
1042 [emacs_cv_d8_provides_r8=yes], [emacs_cv_d8_provides_r8=no])])])
1043 AS_IF([test "$emacs_cv_d8_provides_r8" = "yes"],
1044 # And substitute it for D8 if present.
1045 [D8="java -cp $emacs_val com.android.tools.r8.R8"
1048 AC_PATH_PROGS([ZIPALIGN], [zipalign], [], "${SDK_BUILD_TOOLS}:$PATH")
1049 if test "ZIPALIGN" = ""; then
1050 AC_MSG_ERROR([The Android ZIP archive alignment utility was not found.
1051 Please verify that the path to the SDK build tools you specified is correct]);
1054 dnl Now configure Emacs to generate binaries for Android. After the
1055 dnl configuration completes, move the generated Makefiles.
1057 if test "$ANDROID_CC" = ""; then
1058 AC_MSG_ERROR([Please specify the path to the Android cross-compiler
1059 for your machine. For example:
1061 ANDROID_CC=/path/to/armv7a-linux-androideabi19-clang \\
1062 ./configure --with-android])
1065 dnl Obtain the cross compiler's target to find out where binaries go
1066 dnl in the resulting package.
1068 AC_MSG_CHECKING([for the kind of Android system Emacs is being built for])
1069 cc_target=`${ANDROID_CC} -v 2>&1 | sed -n 's/Target: //p'`
1070 case "$cc_target" in
1072 *i[3-6]86*) android_abi=x86
1074 *x86_64*) android_abi=x86_64
1076 *aarch64*) android_abi=arm64-v8a
1078 *arm*v7a*) android_abi=armeabi-v7a
1080 *mips64*) android_abi=mips64
1082 *mips*) android_abi=mips
1084 *arm*) android_abi=armeabi
1087 *) AC_MSG_ERROR([configure could not determine the type of Android \
1088 binary Emacs is being configured for. Please port this configure script \
1089 to your Android system, or verify that you specified the correct compiler \
1090 in the ANDROID_CC variable when you ran configure.
1092 The compiler target is: $cc_target])
1095 AC_MSG_RESULT([$android_abi])
1097 ANDROID_ABI=$android_abi
1099 dnl Obtain the minimum SDK version of the resulting Emacs binary
1100 dnl built with this NDK.
1103 AC_MSG_CHECKING([for the lowest Android version Emacs can run on])
1104 [android_sdk=`echo "$cc_target" | grep -oE 'android([0-9][0-9]?)'`]
1106 if test -n "$android_sdk"; then
1107 android_sdk=`echo "$android_sdk" | sed -n 's/android//p'`
1108 AC_MSG_RESULT([$android_sdk])
1109 ANDROID_MIN_SDK=$android_sdk
1111 # This is probably GCC.
1112 [ cat << EOF > conftest.c
1113 #include <android/api-level.h>
1114 extern const char *foo;
1119 #if __ANDROID_API__ < 7
1120 foo = "emacs_api_6";
1121 #elif __ANDROID_API__ < 8
1122 foo = "emacs_api_7";
1123 #elif __ANDROID_API__ < 9
1124 foo = "emacs_api_8";
1125 #elif __ANDROID_API__ < 10
1126 foo = "emacs_api_9";
1127 #elif __ANDROID_API__ < 11
1128 foo = "emacs_api_10";
1129 #elif __ANDROID_API__ < 12
1130 foo = "emacs_api_11";
1131 #elif __ANDROID_API__ < 13
1132 foo = "emacs_api_12";
1133 #elif __ANDROID_API__ < 14
1134 foo = "emacs_api_13";
1135 #elif __ANDROID_API__ < 15
1136 foo = "emacs_api_14";
1137 #elif __ANDROID_API__ < 16
1138 foo = "emacs_api_15";
1139 #elif __ANDROID_API__ < 17
1140 foo = "emacs_api_16";
1141 #elif __ANDROID_API__ < 18
1142 foo = "emacs_api_17";
1143 #elif __ANDROID_API__ < 19
1144 foo = "emacs_api_18";
1145 #elif __ANDROID_API__ < 20
1146 foo = "emacs_api_19";
1147 #elif __ANDROID_API__ < 21
1148 foo = "emacs_api_20";
1149 #elif __ANDROID_API__ < 22
1150 foo = "emacs_api_21";
1151 #elif __ANDROID_API__ < 23
1152 foo = "emacs_api_22";
1153 #elif __ANDROID_API__ < 24
1154 foo = "emacs_api_23";
1155 #elif __ANDROID_API__ < 25
1156 foo = "emacs_api_24";
1157 #elif __ANDROID_API__ < 26
1158 foo = "emacs_api_25";
1159 #elif __ANDROID_API__ < 27
1160 foo = "emacs_api_26";
1161 #elif __ANDROID_API__ < 28
1162 foo = "emacs_api_27";
1163 #elif __ANDROID_API__ < 29
1164 foo = "emacs_api_28";
1165 #elif __ANDROID_API__ < 30
1166 foo = "emacs_api_29";
1167 #elif __ANDROID_API__ < 31
1168 foo = "emacs_api_30";
1169 #elif __ANDROID_API__ < 32
1170 foo = "emacs_api_31";
1171 #elif __ANDROID_API__ < 33
1172 foo = "emacs_api_32";
1173 #elif __ANDROID_API__ < 34
1174 foo = "emacs_api_33";
1175 #elif __ANDROID_API__ < 35
1176 foo = "emacs_api_34";
1178 foo = "emacs_api_future";
1183 AC_CACHE_VAL([emacs_cv_android_api],
1184 [$ANDROID_CC $ANDROID_CFLAGS -c conftest.c -o conftest.o \
1185 && emacs_cv_android_api=`grep -ao -E \
1186 "emacs_api_([[0-9][0-9]]?|future)" conftest.o`])
1187 android_sdk="$emacs_cv_android_api"
1188 rm -rf conftest.c conftest.o
1190 # If this version of the NDK requires __ANDROID_API__ to be
1191 # specified, then complain to the user.
1192 if test "$android_sdk" = "emacs_api_future"; then
1193 AC_MSG_ERROR([The version of Android to build for was not specified.
1194 You must tell the Android compiler what version of Android to build for,
1195 by defining the __ANDROID_API__ preprocessor macro in ANDROID_CC, like so:
1197 ANDROID_CC="/path/to/ndk/arm-linux-android-gcc -D__ANDROID_API__=8"])
1200 if test -n "$android_sdk"; then
1201 android_sdk=`echo $android_sdk | sed -n 's/emacs_api_//p'`
1202 AC_MSG_RESULT([$android_sdk])
1203 ANDROID_MIN_SDK=$android_sdk
1205 AC_MSG_RESULT([unknown ($cc_target); assuming 8])
1206 AC_MSG_ERROR([configure could not determine the versions of Android \
1207 a binary built with this compiler will run on. The generated application \
1208 package will likely install on older systems but crash on startup.])
1212 AC_SUBST([ANDROID_MIN_SDK])
1214 # Now tell java/Makefile if Emacs is being built for Android 4.3 or
1216 ANDROID_SDK_18_OR_EARLIER=
1217 if test "$android_sdk" -le "18"; then
1218 ANDROID_SDK_18_OR_EARLIER=yes
1220 AC_SUBST([ANDROID_SDK_18_OR_EARLIER])
1222 # Likewise for Android 2.2.
1223 ANDROID_SDK_8_OR_EARLIER=
1224 if test "$android_sdk" -le "8"; then
1225 ANDROID_SDK_8_OR_EARLIER=yes
1227 AC_SUBST([ANDROID_SDK_8_OR_EARLIER])
1229 # Save confdefs.h and config.log for now.
1230 mv -f confdefs.h _confdefs.h
1231 mv -f config.log _config.log
1233 # Make sure these files are removed upon exit.
1234 trap "rm -rf _confdefs.h _config.log" 0
1236 # Figure out what --with-FOO options to pass through.
1237 passthrough="$passthrough --with-png=$with_png"
1238 passthrough="$passthrough --with-webp=$with_webp"
1239 passthrough="$passthrough --with-gif=$with_gif"
1240 passthrough="$passthrough --with-jpeg=$with_jpeg"
1241 passthrough="$passthrough --with-xml2=$with_xml2"
1242 passthrough="$passthrough --with-sqlite3=$with_sqlite3"
1243 passthrough="$passthrough --with-gnutls=$with_gnutls"
1244 passthrough="$passthrough --with-tiff=$with_tiff"
1245 passthrough="$passthrough --with-selinux=$with_selinux"
1246 passthrough="$passthrough --with-modules=$with_modules"
1247 passthrough="$passthrough --with-tree-sitter=$with_tree_sitter"
1248 passthrough="$passthrough --with-imagemagick=$with_imagemagick"
1249 passthrough="$passthrough --with-lcms2=$with_lcms2"
1250 passthrough="$passthrough --with-mailutils=$with_mailutils"
1251 passthrough="$passthrough --with-pop=$with_pop"
1252 passthrough="$passthrough --with-harfbuzz=$with_harfbuzz"
1253 passthrough="$passthrough --with-threads=$with_threads"
1255 # Now pass through some checking-related options.
1256 emacs_val="--enable-check-lisp-object-type=$enable_check_lisp_object_type"
1257 passthrough="$passthrough $emacs_val"
1259 AS_IF([test "x$with_mailutils" = "xyes"], [emacs_use_mailutils=yes])
1260 AC_SUBST([emacs_use_mailutils])
1262 AS_IF([XCONFIGURE=android ANDROID_CC="$ANDROID_CC" \
1263 ANDROID_SDK="$android_sdk" android_abi=$android_abi \
1264 android_ndk_path="$with_ndk_path" \
1265 android_ndk_cxx="$android_ndk_cxx" \
1266 $CONFIG_SHELL $0 $passthrough], [],
1267 [AC_MSG_ERROR([Failed to cross-configure Emacs for android.])])
1269 # Now set ANDROID to yes.
1272 for makefile in $android_makefiles; do
1273 AC_MSG_NOTICE([Generating $makefile.android])
1274 mv -f "$makefile" "$makefile.android"
1277 AC_MSG_NOTICE([Generating src/config.h.android])
1278 mv -f src/config.h src/config.h.android
1280 # Tell AndroidManifest.xml whether or not Emacs should be built
1282 ANDROID_DEBUGGABLE=false
1283 if test "$with_android_debug" = "yes"; then
1284 ANDROID_DEBUGGABLE=true
1286 AC_SUBST([ANDROID_DEBUGGABLE])
1288 # Move confdefs.h back now that the recursive call to configure is
1290 mv -f _confdefs.h confdefs.h
1292 # Move the Android config.log to config.log.android. */
1293 mv -f config.log config.log.android
1295 # And _config.log back.
1296 mv -f _config.log config.log
1303 AC_SUBST([ZIPALIGN])
1304 AC_SUBST([ANDROID_JAR])
1305 AC_SUBST([ANDROID_ABI])
1306 AC_SUBST([IS_D8_R8])
1308 if test "$XCONFIGURE" = "android"; then
1311 # Enable cross compiling.
1315 AC_SUBST([XCONFIGURE])
1317 if test "$ANDROID" = "yes"; then
1318 # When --with-android is specified, almost all build options must be
1319 # disabled, both within the recursive invocation of configure and
1323 # Some of these dependencies are now supported within Android, so
1324 # they can be enabled.
1325 if test "$XCONFIGURE" != "android"; then
1342 with_native_compilation=no
1356 # zlib is available in android.
1359 dnl This used to use changequote, but, apart from 'changequote is evil'
1360 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
1361 dnl the great gob of text. Thus it's not processed for possible expansion.
1362 dnl Just make sure the brackets remain balanced.
1364 dnl Since Emacs can't find matching pairs of quotes, boundaries are
1365 dnl indicated by comments.
1366 dnl quotation begins
1369 ### If you add support for a new configuration, add code to this
1370 ### switch statement to recognize your configuration name and select
1371 ### the appropriate opsys.
1373 ### As far as handling version numbers on operating systems is
1374 ### concerned, make sure things will fail in a fixable way. If
1375 ### /etc/MACHINES doesn't say anything about version numbers, be
1376 ### prepared to handle anything reasonably. If version numbers
1377 ### matter, be sure /etc/MACHINES says something about it.
1379 opsys='' unported=no
1380 case "${canonical}" in
1387 ## GNU/Linux and similar ports
1402 ## FreeBSD kernel + glibc based userland
1413 *-*-openbsd* | *-*-mirbsd* )
1417 ## Apple Darwin / macOS
1419 case "${canonical}" in
1420 *-apple-darwin[0-9].*) unported=yes ;;
1421 i[3456]86-* | x86_64-* | arm-* | aarch64-* ) ;;
1425 ## FIXME: Find a way to use Fink if available (Bug#11507).
1428 ## Chromium Native Client
1438 ## HP 9000 series 700 and 800, running HP/UX
1439 hppa*-hp-hpux10.2* )
1442 hppa*-hp-hpux1[1-9]* )
1444 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
1448 rs6000-ibm-aix4.[23]* )
1451 powerpc-ibm-aix4.[23]* )
1454 rs6000-ibm-aix[56]* )
1457 powerpc-ibm-aix[5-9]* | powerpc-ibm-aix[1-9][0-9]* )
1462 *-*-solaris* | *-*-sunos*)
1463 case "${canonical}" in
1465 amd64-*-*|x86_64-*-*) ;;
1470 ## Watch out for a compiler that we know will not work.
1471 if [ "$CC" = /usr/ucb/cc ]; then
1472 ## /usr/ucb/cc doesn't work;
1473 ## we should find some other compiler that does work.
1481 test -z "$CC" && CC=qcc
1482 LDFLAGS="-N2M $LDFLAGS"
1489 ## Intel 386 machines where we don't care about the manufacturer.
1491 case "${canonical}" in
1492 *-darwin* ) opsys=darwin ;;
1495 # MinGW overrides and adds some system headers in nt/inc.
1496 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
1498 *-sysv4.2uw* ) opsys=unixware ;;
1499 *-sysv5uw* ) opsys=unixware ;;
1500 *-sysv5OpenUNIX* ) opsys=unixware ;;
1501 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
1507 case "${canonical}" in
1510 # MinGW overrides and adds some system headers in nt/inc.
1511 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
1513 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
1522 ### If the code above didn't choose an operating system, just choose
1523 ### an operating system based on the configuration name. You really
1524 ### only want to use this when you have no idea what the right
1525 ### operating system is; if you know what operating systems a machine
1526 ### runs, it's cleaner to make it explicit in the case statement
1528 if test x"${opsys}" = x; then
1529 case "${canonical}" in
1530 *-gnu* ) opsys=gnu ;;
1540 if test $unported = yes; then
1541 AC_MSG_ERROR([Emacs does not support '${canonical}' systems.
1542 If you think it should, please send a report to ${PACKAGE_BUGREPORT}.
1543 Check 'etc/MACHINES' for recognized configuration names.])
1546 #### Choose a compiler.
1548 dnl Don't bother to test for C89.
1549 AC_DEFUN([_AC_PROG_CC_C89], [$2])
1551 dnl Sets GCC=yes if using gcc.
1552 AC_PROG_CC([gcc cc cl clang "$XCRUN gcc" "$XCRUN clang"])
1554 if test -n "$XCRUN"; then
1555 AC_CHECK_PROGS([AR], [ar "$XCRUN ar"])
1556 test -n "$AR" && export AR
1559 dnl Emacs needs C99 or later.
1564 if test x$GCC = xyes; then
1565 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
1568 # Avoid gnulib's tests for -lcrypto, so that there's no static dependency on it.
1569 AC_DEFUN([gl_CRYPTO_CHECK])
1570 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
1571 # as we don't use them.
1572 AC_DEFUN([gl_FCNTL_O_FLAGS])
1573 # Avoid gnulib's test for pthread_sigmask.
1575 for func in $ac_func_list; do
1576 test $func = pthread_sigmask || AS_VAR_APPEND([funcs], [" $func"])
1579 # Emacs does not use the wchar or wctype-h modules.
1580 AC_DEFUN([gt_TYPE_WINT_T],
1581 [GNULIBHEADERS_OVERRIDE_WINT_T=0
1582 AC_SUBST([GNULIBHEADERS_OVERRIDE_WINT_T])])
1583 # Emacs does not need precise checks for the Solaris 10 MB_CUR_MAX bug.
1584 AC_DEFUN_ONCE([gl_STDLIB_H],
1585 [AC_REQUIRE([gl_STDLIB_H_DEFAULTS])
1586 gl_NEXT_HEADERS([stdlib.h])])
1588 # Initialize gnulib right after choosing the compiler.
1589 dnl Amongst other things, this sets AR and ARFLAGS.
1592 # ndk_LATE must be enclosed in this conditional to prevent the
1593 # AC_PROG_CXX it indirectly requires from being expanded at top level.
1594 if test "$ndk_INITIALIZED" = "yes"; then
1599 if test "$ac_test_CFLAGS" != set; then
1600 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
1601 # if -g3 works and the user does not specify CFLAGS.
1602 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
1605 emacs_g3_CFLAGS='-g3';;
1607 emacs_g3_CFLAGS='-g3 -O2';;
1609 emacs_g3_CFLAGS='';;
1611 if test -n "$emacs_g3_CFLAGS"; then
1612 emacs_save_CFLAGS=$CFLAGS
1613 CFLAGS=$emacs_g3_CFLAGS
1614 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
1615 [emacs_cv_prog_cc_g3],
1616 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
1617 [emacs_cv_prog_cc_g3=yes],
1618 [emacs_cv_prog_cc_g3=no])])
1619 if test $emacs_cv_prog_cc_g3 != yes; then
1620 CFLAGS=$emacs_save_CFLAGS
1622 # Haiku also needs -gdwarf-2 because its GDB is too old
1623 # to understand newer formats.
1624 if test $opsys = mingw32 || test $opsys = haiku; then
1625 CFLAGS="$CFLAGS -gdwarf-2"
1632 # No optimization flag was inferred for this non-GCC compiler.
1633 # Try -O. This is needed for xlc on AIX; see Bug#14258.
1634 emacs_save_CFLAGS=$CFLAGS
1635 test -z "$CFLAGS" || CFLAGS="$CFLAGS "
1637 AC_CACHE_CHECK([whether $CC accepts -O],
1638 [emacs_cv_prog_cc_o],
1639 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
1640 [emacs_cv_prog_cc_o=yes],
1641 [emacs_cv_prog_cc_o=no])])
1642 if test $emacs_cv_prog_cc_o != yes; then
1643 CFLAGS=$emacs_save_CFLAGS
1648 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
1649 # ---------------------------------------------------------------------------
1650 # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
1651 # Otherwise, run RUN-IF-NOT-FOUND.
1652 AC_DEFUN([gl_GCC_VERSION_IFELSE],
1656 #if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
1659 # error "your version of gcc is older than $1.$2"
1666 # clang is unduly picky about some things.
1667 AC_CACHE_CHECK([whether the compiler is clang], [emacs_cv_clang],
1674 [emacs_cv_clang=yes],
1675 [emacs_cv_clang=no])])
1677 AC_ARG_ENABLE([gcc-warnings],
1678 [AS_HELP_STRING([--enable-gcc-warnings@<:@=TYPE@:>@],
1679 [control generation of GCC warnings. The TYPE 'yes'
1680 means to fail if any warnings are issued; 'warn-only'
1681 means issue warnings without failing (default for
1682 developer builds); 'no' means disable warnings
1683 (default for non-developer builds).])],
1685 yes|no|warn-only) ;;
1686 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
1688 gl_gcc_warnings=$enableval],
1689 [# By default, use 'warn-only' if it looks like the invoker of 'configure'
1690 # is a developer as opposed to a builder. This is most likely true
1691 # if GCC is recent enough and there is a .git directory or file;
1692 # however, if there is also a .tarball-version file it is probably
1693 # just a release imported into Git for patch management.
1695 AS_IF([test -d "$srcdir"/.git || test -f "$srcdir"/.git],
1696 [AS_IF([test -f "$srcdir"/.tarball-version], [],
1697 # Clang typically identifies itself as GCC 4.2 or something similar
1698 # even if it is recent enough to accept the warnings we enable.
1699 [AS_IF([test "$emacs_cv_clang" = yes],
1700 [gl_gcc_warnings=warn-only],
1701 [gl_GCC_VERSION_IFELSE([5], [3], [gl_gcc_warnings=warn-only])])])])])
1703 NATIVE_COMPILATION_AOT=no
1704 AC_ARG_WITH([native-compilation],
1705 [AS_HELP_STRING([--with-native-compilation@<:@=TYPE@:>@],
1706 [compile with Emacs Lisp native compiler support. The TYPE
1707 'yes' (or empty) means to enable it and compile natively
1708 preloaded Lisp files; 'no' means to disable it;
1709 'aot' will make the build process compile all the Lisp
1710 files in the tree natively ahead of time. (This will
1711 usually be quite slow.)])],
1716 NATIVE_COMPILATION_AOT=yes
1719 *) AC_MSG_ERROR([bad value $withval for native-compilation option]) ;;
1721 with_native_compilation=$withval],
1722 [with_native_compilation=default]
1724 AC_SUBST([NATIVE_COMPILATION_AOT])
1726 AC_ARG_ENABLE([check-lisp-object-type],
1727 [AS_HELP_STRING([--enable-check-lisp-object-type],
1728 [Enable compile time checks for the Lisp_Object data type,
1729 which can catch some bugs during development.])])
1730 if test "$enable_check_lisp_object_type" = yes; then
1731 AC_DEFINE([CHECK_LISP_OBJECT_TYPE], [1],
1732 [Define to enable compile-time checks for the Lisp_Object data type.])
1736 # When compiling with GCC, prefer -isystem to -I when including system
1737 # include files, to avoid generating useless diagnostics for the files.
1738 AS_IF([test $gl_gcc_warnings = no],
1741 AS_IF([test "$emacs_cv_clang" = yes],
1743 # Turn off some warnings if supported.
1744 gl_WARN_ADD([-Wno-pointer-sign])
1745 gl_WARN_ADD([-Wno-string-plus-int])
1746 gl_WARN_ADD([-Wno-unknown-attributes])
1747 gl_WARN_ADD([-Wno-unknown-pragmas])
1752 # This, $nw, is the list of warnings we disable.
1755 case $with_x_toolkit in
1756 lucid | athena | motif)
1757 # Old toolkits mishandle 'const'.
1758 nw="$nw -Wwrite-strings"
1761 AS_IF([test $gl_gcc_warnings = yes],
1762 [WERROR_CFLAGS=-Werror],
1763 [# Use -fanalyzer and related options only if --enable-gcc-warnings,
1764 # as they slow GCC considerably.
1765 nw="$nw -fanalyzer -Wno-analyzer-double-free -Wno-analyzer-malloc-leak"
1766 nw="$nw -Wno-analyzer-null-dereference -Wno-analyzer-use-after-free"
1767 # Use -Wsuggest-attribute=malloc only if --enable-gcc-warnings,
1768 # as it doesn't flag code that is wrong in any way.
1769 nw="$nw -Wsuggest-attribute=malloc"])
1771 nw="$nw -Wcast-align=strict" # Emacs is tricky with pointers.
1772 nw="$nw -Wduplicated-branches" # Too many false alarms
1773 nw="$nw -Wformat-overflow=2" # False alarms due to GCC bug 110333
1774 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
1775 nw="$nw -Woverlength-strings" # Not a problem these days
1776 nw="$nw -Wvla" # Emacs uses <vla.h>.
1777 nw="$nw -Wunused-const-variable=2" # lisp.h declares const objects.
1778 nw="$nw -Winline" # OK to ignore 'inline'
1779 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
1780 # signed overflow has undefined behavior
1781 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
1782 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
1783 nw="$nw -Wbad-function-cast" # These casts are no worse than others.
1785 # Emacs doesn't care about shadowing; see
1786 # <https://lists.gnu.org/r/emacs-diffs/2011-11/msg00265.html>.
1789 # Emacs's use of alloca inhibits protecting the stack.
1790 nw="$nw -Wstack-protector"
1792 # Emacs's use of __attribute__ ((cold)) causes false alarms with this option.
1793 nw="$nw -Wsuggest-attribute=cold"
1795 # Emacs's use of partly-const functions such as Fgnutls_available_p
1796 # make this option problematic.
1797 nw="$nw -Wsuggest-attribute=const"
1799 # Emacs's use of partly-pure functions such as CHECK_TYPE make this
1800 # option problematic.
1801 nw="$nw -Wsuggest-attribute=pure"
1803 # Emacs doesn't need this paranoia.
1804 nw="$nw -Wbidi-chars=any,ucn"
1806 if test "$emacs_cv_clang" = yes; then
1807 nw="$nw -Wdouble-promotion"
1808 nm="$nm -Wunknown-pragmas"
1811 # This causes too much noise in the MinGW build.
1812 if test $opsys = mingw32; then
1813 nw="$nw -Wsuggest-attribute=format"
1816 # If Emacs is being built for Android and many functions are
1817 # currently stubbed out for operation on the build machine, disable
1818 # -Wsuggest-attribute=noreturn.
1820 AS_IF([test "$ANDROID" = "yes"],
1821 [nw="$nw -Wsuggest-attribute=noreturn"])
1823 gl_MANYWARN_ALL_GCC([ws])
1824 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
1828 gl_WARN_ADD([-Wredundant-decls]) # Prefer this, as we don't use Bison.
1829 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
1830 gl_WARN_ADD([-Wno-override-init]) # More trouble than it is worth
1831 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
1832 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
1833 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
1834 gl_WARN_ADD([-Wno-format-nonliteral])
1835 gl_WARN_ADD([-Wno-bidi-chars])
1836 AS_IF([test $gl_gcc_warnings = yes],
1837 [gl_WARN_ADD([-Wno-analyzer-fd-leak])]) # GCC bug 109839
1839 # clang is unduly picky about some things.
1840 if test "$emacs_cv_clang" = yes; then
1841 gl_WARN_ADD([-Wno-bitwise-instead-of-logical])
1842 gl_WARN_ADD([-Wno-missing-braces])
1843 gl_WARN_ADD([-Wno-null-pointer-arithmetic])
1844 gl_WARN_ADD([-Wno-implicit-const-int-float-conversion])
1845 gl_WARN_ADD([-Wno-int-in-bool-context])
1846 gl_WARN_ADD([-Wno-shift-overflow])
1849 # This causes too much noise in the MinGW build
1850 if test $opsys = mingw32; then
1851 gl_WARN_ADD([-Wno-pointer-sign])
1854 AC_DEFINE([GCC_LINT], [1], [Define to 1 if --enable-gcc-warnings.])
1855 AS_IF([test $gl_gcc_warnings = yes],
1856 [AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
1857 AH_VERBATIM([GNULIB_PORTCHECK_FORTIFY_SOURCE],
1858 [/* Enable compile-time and run-time bounds-checking, and some warnings,
1859 without upsetting glibc 2.15+. */
1860 #if (defined GNULIB_PORTCHECK && !defined _FORTIFY_SOURCE \
1861 && defined __OPTIMIZE__ && __OPTIMIZE__)
1862 # define _FORTIFY_SOURCE 2
1867 # clang is picky about these regardless of whether
1868 # --enable-gcc-warnings is specified.
1869 if test "$emacs_cv_clang" = yes; then
1870 gl_WARN_ADD([-Wno-initializer-overrides])
1871 gl_WARN_ADD([-Wno-tautological-compare])
1872 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
1875 # Suppress deprecation warnings from using sprintf variants,
1876 # starting with Xcode 14.1 on macOS 13.
1877 # These warnings are false alarms, as Emacs usage of sprintf is safe.
1878 if test $opsys = darwin; then
1879 gl_WARN_ADD([-Wno-deprecated-declarations])
1882 # Use a slightly smaller set of warning options for lib/.
1884 nw="$nw -Wunused-macros"
1885 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
1887 AC_SUBST([WERROR_CFLAGS])
1888 AC_SUBST([GNULIB_WARN_CFLAGS])
1897 AC_ARG_ENABLE([link-time-optimization],
1898 [AS_HELP_STRING([--enable-link-time-optimization],
1899 [build with link-time optimization
1900 (experimental; see INSTALL)])],
1901 if test "${enableval}" != "no"; then
1903 if test "$emacs_cv_clang" = yes; then
1904 AC_MSG_CHECKING([whether link-time optimization is supported by clang])
1905 GOLD_PLUGIN=`$CC -print-file-name=LLVMgold.so 2>/dev/null`
1906 if test -x "$GOLD_PLUGIN"; then
1909 elif test x$GCC = xyes; then
1910 AC_MSG_CHECKING([whether link-time optimization is supported by gcc])
1911 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
1912 if test x$CPUS != x; then
1918 AC_MSG_ERROR([Link-time optimization is not supported with your compiler.])
1920 if test -z "$LTO"; then
1924 CFLAGS="$CFLAGS $LTO"
1925 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1926 [ac_lto_supported=yes], [ac_lto_supported=no])
1927 CFLAGS="$old_CFLAGS"
1929 AC_MSG_RESULT([$ac_lto_supported])
1930 if test "$ac_lto_supported" = "yes"; then
1931 CFLAGS="$CFLAGS $LTO"
1932 if test "$emacs_cv_clang" = yes; then
1933 AC_MSG_WARN([Please read INSTALL before using link-time optimization with clang])
1934 # WARNING: 'ar --plugin ...' doesn't work without
1935 # command, so plugin name is appended to ARFLAGS.
1936 ARFLAGS="cru --plugin $GOLD_PLUGIN"
1937 RANLIB="$RANLIB --plugin $GOLD_PLUGIN"
1939 dnl The following is needed for GCC 4.9.0. The GCC 4.9.0 release notes
1940 dnl suggest that instead of -ffat-lto-objects we should use gcc-ar and
1941 dnl gcc-ranlib in place of ar and ranlib, but gcc-ar makes /usr/bin/ar
1942 dnl dump core on Fedora 20, so play it safe for now.
1943 gl_COMPILER_OPTION_IF([-ffat-lto-objects],
1944 [CFLAGS="$CFLAGS -ffat-lto-objects"])
1950 dnl Automake replacements.
1951 AC_DEFUN([AM_CONDITIONAL],
1952 [$2 && $1_CONDITION=1 || $1_CONDITION=
1953 AC_SUBST([$1_CONDITION])])
1954 AC_DEFUN([AM_COND_IF],
1955 [AS_IF([test "$$1_CONDITION"], [$2], [$3])])
1957 dnl Prefer silent make output. For verbose output, use
1958 dnl 'configure --disable-silent-rules' or 'make V=1' .
1959 AC_ARG_ENABLE([silent-rules],
1961 [--disable-silent-rules],
1962 [verbose build output (undo: "make V=0")])])
1963 if test "$enable_silent_rules" = no; then
1964 AM_DEFAULT_VERBOSITY=1
1966 AM_DEFAULT_VERBOSITY=0
1968 AC_SUBST([AM_DEFAULT_VERBOSITY])
1969 ARCH_INDEPENDENT_CONFIG_FILES([src/verbose.mk])
1971 dnl Some other nice autoconf tests.
1973 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
1975 dnl if test "x$RANLIB" = x; then
1980 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
1981 dnl can be made to directories. This is not relevant for our usage, and
1982 dnl excludes some cases that work fine for us. Eg MS Windows or files
1983 dnl hosted on AFS, both examples where simple links work, but links to
1984 dnl directories fail. We use a cut-down version instead.
1987 AC_CACHE_CHECK([command to symlink files in the same directory], [emacs_cv_ln_s_fileonly],
1988 [rm -f conf$$ conf$$.file
1990 emacs_cv_ln_s_fileonly='cp -p'
1992 dnl On MinGW, ensure we will call the MSYS /bin/ln.exe, not some
1993 dnl random program in the current directory.
1994 if (echo >conf$$.file) 2>/dev/null; then
1995 if test "$opsys" = "mingw32"; then
1996 emacs_cv_ln_s_fileonly=/bin/ln
1997 elif ln -s conf$$.file conf$$ 2>/dev/null; then
1998 emacs_cv_ln_s_fileonly='ln -s'
1999 elif ln conf$$.file conf$$ 2>/dev/null; then
2000 emacs_cv_ln_s_fileonly=ln
2004 rm -f conf$$ conf$$.file])
2005 LN_S_FILEONLY=$emacs_cv_ln_s_fileonly
2007 AC_SUBST([LN_S_FILEONLY])
2010 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
2011 dnl doesn't support links to directories, as in "ln file dir". But that
2012 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
2013 dnl executables at "make install" time.
2014 dnl See https://lists.gnu.org/r/emacs-devel/2013-04/msg00475.html
2015 dnl for more details.
2016 if test "$opsys" = "mingw32"; then
2020 dnl On some Debian versions, "install-info" prints irritating messages
2021 dnl "This is not dpkg install-info anymore, but GNU install-info"
2022 dnl if called via an absolute file name.
2023 dnl Use the entirely-identical-but-quieter ginstall-info instead if present.
2024 dnl Sadly some people may have an old ginstall-info installed on
2025 dnl non-Debian systems, so we can't use this.
2026 dnl AC_PATH_PROGS([INSTALL_INFO], [ginstall-info install-info], [:],
2027 dnl [$PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin])
2029 AC_PATH_PROG([INSTALL_INFO], [install-info], [:],
2030 [$PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin])
2031 dnl Don't use GZIP, which is used by gzip for additional parameters.
2032 AC_PATH_PROG([GZIP_PROG], [gzip])
2034 test $with_compress_install != yes && test -n "$GZIP_PROG" && \
2035 GZIP_PROG=" # $GZIP_PROG # (disabled by configure --without-compress-install)"
2037 if test "$with_dumping" = "unexec" && test "$opsys" = "nacl"; then
2038 AC_MSG_ERROR([nacl is not compatible with --with-dumping=unexec])
2041 AC_CACHE_CHECK([for 'find' args to delete a file],
2042 [emacs_cv_find_delete],
2043 [if touch conftest.tmp && find conftest.tmp -delete 2>/dev/null &&
2044 test ! -f conftest.tmp
2045 then emacs_cv_find_delete="-delete"
2046 else emacs_cv_find_delete="-exec rm -f {} ';'"
2048 FIND_DELETE=$emacs_cv_find_delete
2049 AC_SUBST([FIND_DELETE])
2053 if test $with_unexec = yes && test $opsys = gnu-linux; then
2054 if test "${SETFATTR+set}" != set; then
2055 AC_CACHE_CHECK([for setfattr],
2056 [emacs_cv_prog_setfattr],
2058 if (setfattr -n user.pax.flags conftest.tmp) >/dev/null 2>&1; then
2059 emacs_cv_prog_setfattr=yes
2061 emacs_cv_prog_setfattr=no
2063 if test "$emacs_cv_prog_setfattr" = yes; then
2064 PAXCTL_notdumped='$(SETFATTR) -n user.pax.flags -v er'
2070 case $opsys,$PAXCTL_notdumped,$emacs_uname_r in
2071 gnu-linux,,* | netbsd,,[0-7].*)
2072 AC_PATH_PROG([PAXCTL], [paxctl], [],
2073 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
2074 if test -n "$PAXCTL"; then
2075 if test "$opsys" = netbsd; then
2076 PAXCTL_dumped='$(PAXCTL) +a'
2077 PAXCTL_notdumped=$PAXCTL_dumped
2079 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
2080 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
2081 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then
2082 AC_MSG_RESULT([yes])
2087 if test -n "$PAXCTL"; then
2088 PAXCTL_dumped='$(PAXCTL) -zex'
2089 PAXCTL_notdumped='$(PAXCTL) -r'
2095 AC_SUBST([PAXCTL_dumped])
2096 AC_SUBST([PAXCTL_notdumped])
2097 AC_SUBST([SETFATTR])
2099 # Makeinfo on macOS is ancient, check whether there is a more recent
2100 # version installed by Homebrew.
2101 AC_CHECK_PROGS([BREW], [brew])
2102 if test -n "$BREW"; then
2103 AC_PATH_PROG([MAKEINFO], [makeinfo], [],
2104 [`$BREW --prefix texinfo 2>/dev/null`/bin$PATH_SEPARATOR$PATH])
2107 # Check MacPorts on macOS.
2108 if test $opsys = darwin; then
2109 AC_PATH_PROG([HAVE_MACPORTS], [port])
2112 ## Require makeinfo >= 4.13 (last of the 4.x series) to build the manuals.
2113 : ${MAKEINFO:=makeinfo}
2114 case `($MAKEINFO --version) 2>/dev/null` in
2115 *' (GNU texinfo) '4.1[[3-9]]* | \
2116 *' (GNU texinfo) '[[5-9]]* | \
2117 *' (GNU texinfo) '[[1-9][0-9]]* ) ;;
2121 ## Makeinfo is unusual. For a released Emacs, the manuals are
2122 ## pre-built, and not deleted by the normal clean rules. makeinfo is
2123 ## therefore in the category of "special tools" not normally required, which
2124 ## configure does not have to check for (eg autoconf itself).
2125 ## In a repository checkout on the other hand, the manuals are not included.
2126 ## So makeinfo is a requirement to build from the repository, and configure
2127 ## should test for it as it does for any other build requirement.
2128 ## We use the presence of $srcdir/info/emacs to distinguish a release,
2129 ## with pre-built manuals, from a repository checkout.
2130 if test "$MAKEINFO" = "no"; then
2132 if test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
2133 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.13, and your
2134 source tree does not seem to have pre-built manuals in the 'info' directory.
2135 Please install a suitable version of makeinfo.] )
2137 AC_MSG_WARN( [You do not seem to have makeinfo >= 4.13.
2138 You will not be able to rebuild the manuals if you delete them or change
2142 AC_SUBST([MAKEINFO])
2144 if test $opsys = mingw32; then
2145 DOCMISC_W32=efaq-w32
2149 AC_SUBST([DOCMISC_W32])
2151 dnl Add our options to ac_link now, after it is set up.
2153 if test x$GCC = xyes; then
2154 test "x$GCC_LINK_TEST_OPTIONS" != x && \
2155 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
2157 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
2158 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
2161 dnl On some platforms using GNU ld, linking temacs needs -znocombreloc.
2162 dnl Although this has something to do with dumping, the details are unknown.
2163 dnl If the flag is used but not needed,
2164 dnl Emacs should still work (albeit a bit more slowly),
2165 dnl so use the flag everywhere that it is supported.
2166 dnl When testing whether the flag works, treat GCC specially
2167 dnl since it just gives a non-fatal 'unrecognized option'
2168 dnl if not built to support GNU ld.
2169 if test "$GCC" = yes; then
2170 LDFLAGS_NOCOMBRELOC="-Wl,-znocombreloc"
2172 LDFLAGS_NOCOMBRELOC="-znocombreloc"
2175 AC_CACHE_CHECK([for -znocombreloc], [emacs_cv_znocombreloc],
2176 [if test $with_unexec = no; then
2177 emacs_cv_znocombreloc='not needed'
2179 save_LDFLAGS=$LDFLAGS
2180 LDFLAGS="$LDFLAGS $LDFLAGS_NOCOMBRELOC"
2181 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
2182 [emacs_cv_znocombreloc=yes], [emacs_cv_znocombreloc=no])
2183 LDFLAGS=$save_LDFLAGS
2186 case $emacs_cv_znocombreloc in
2188 LDFLAGS_NOCOMBRELOC= ;;
2192 AC_CACHE_CHECK([whether addresses are sanitized],
2193 [emacs_cv_sanitize_address],
2196 [[#ifndef __has_feature
2197 #define __has_feature(f) 0
2199 #if defined __SANITIZE_ADDRESS__ || __has_feature (address_sanitizer)
2201 error "Addresses are not sanitized.";
2204 [emacs_cv_sanitize_address=yes],
2205 [emacs_cv_sanitize_address=no])])
2207 if test $with_unexec = yes; then
2208 AC_DEFINE([HAVE_UNEXEC], [1], [Define if Emacs supports unexec.])
2209 if test "$emacs_cv_sanitize_address" = yes; then
2210 AC_MSG_WARN([[Addresses are sanitized; suggest --without-unexec]])
2216 test $with_unexec = yes &&
2218 # MSDOS uses unexcoff.o
2220 UNEXEC_OBJ=unexaix.o
2226 UNEXEC_OBJ=unexmacosx.o
2229 UNEXEC_OBJ=unexhp9k800.o
2232 UNEXEC_OBJ=unexw32.o
2235 # Use the Solaris dldump() function, called from unexsol.c, to dump
2236 # emacs, instead of the generic ELF dump code found in unexelf.c.
2237 # The resulting binary has a complete symbol table, and is better
2238 # for debugging and other observability tools (debuggers, pstack, etc).
2239 UNEXEC_OBJ=unexsol.o
2242 UNEXEC_OBJ=unexelf.o
2245 AC_SUBST([UNEXEC_OBJ])
2248 test "$with_unexec" = no || case "$opsys" in
2250 ## Let 'ld' find image libs and similar things in /usr/local/lib.
2251 ## The system compiler, GCC, has apparently been modified to not
2252 ## look there, contrary to what a stock GCC would do.
2253 ### It's not our place to do this. See bug#10313#17.
2254 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
2259 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
2260 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
2264 ### It's not our place to do this. See bug#10313#17.
2265 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
2270 ## Han Boetes <han@boetes.org> says this is necessary,
2271 ## otherwise Emacs dumps core on elf systems.
2272 LD_SWITCH_SYSTEM="-Z"
2275 AC_SUBST([LD_SWITCH_SYSTEM])
2277 ac_link="$ac_link $LD_SWITCH_SYSTEM"
2279 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
2280 ## which has not been defined yet. When this was handled with cpp,
2281 ## it was expanded to null when configure sourced the s/*.h file.
2282 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
2283 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
2284 ## (or somesuch), but because it is supposed to go at the _front_
2285 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
2286 ## Compare with the gnu-linux case below, which added to the end
2287 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
2288 ## LD_SWITCH_SYSTEM_TEMACS.
2291 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
2296 test $with_unexec = yes &&
2299 ## With ELF, make sure that all common symbols get allocated to in the
2300 ## data section. Otherwise, the dump of temacs may miss variables in
2301 ## the shared library that have been initialized. For example, with
2302 ## GNU libc, __malloc_initialized would normally be resolved to the
2303 ## shared library's .bss section, which is fatal.
2304 if test "x$GCC" = "xyes"; then
2305 C_SWITCH_MACHINE="-fno-common"
2307 AC_MSG_ERROR([Non-GCC compilers are not supported.])
2311 AC_SUBST([C_SWITCH_MACHINE])
2314 ## Some programs in src produce warnings saying certain subprograms
2315 ## are too complex and need a MAXMEM value greater than 2000 for
2316 ## additional optimization. --nils@exp-math.uni-essen.de
2317 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
2318 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
2319 if test "$opsys" = "mingw32"; then
2320 case "$canonical" in
2321 x86_64-*-mingw*) C_SWITCH_SYSTEM="-mtune=generic" ;;
2322 *) C_SWITCH_SYSTEM="-mtune=pentium4" ;;
2325 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
2326 ## It is redundant in glibc2, since we define _GNU_SOURCE.
2327 AC_SUBST([C_SWITCH_SYSTEM])
2332 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
2333 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
2335 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
2337 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
2339 qnxnto) LIBS_SYSTEM="-lsocket" ;;
2341 solaris) LIBS_SYSTEM="-lsocket -lnsl" ;;
2343 ## Motif needs -lgen.
2344 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
2346 # Haiku needs -lbsd for cfsetspeed.
2347 haiku) LIBS_SYSTEM="-lnetwork -lbsd" ;;
2350 AC_SUBST([LIBS_SYSTEM])
2352 ### Make sure subsequent tests use flags consistent with the build flags.
2354 if test x"${OVERRIDE_CPPFLAGS}" != x; then
2355 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
2357 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
2360 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C99 or better.
2361 AC_DEFUN([AC_TYPE_SIZE_T])
2362 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
2363 AC_DEFUN([AC_TYPE_UID_T])
2364 ac_cv_type_gid_t=yes # AC_TYPE_GETGROUPS needs this in Autoconf 2.72.
2366 # Check for all math.h functions that Emacs uses; on some platforms,
2367 # -lm is needed for some of these functions.
2368 AC_CACHE_CHECK([for math library],
2369 [emacs_cv_lib_math],
2375 main (int argc, char **argv)
2386 d = copysign (d, d);
2409 return d == f && i == l;
2412 [emacs_cv_lib_math='none required'],
2415 [emacs_cv_lib_math=-lm],
2416 [AC_MSG_ERROR([Math library (-lm) not found])])])
2418 case $emacs_cv_lib_math in
2419 -*) LIB_MATH=$emacs_cv_lib_math;;
2423 dnl Current possibilities handled by sed (aix4-2 -> aix,
2424 dnl gnu-linux -> gnu/linux, etc.):
2425 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux.
2426 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
2427 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
2434 ## Adding -lm confuses the dynamic linker, so omit it.
2437 freebsd | dragonfly )
2438 SYSTEM_TYPE=berkeley-unix
2440 gnu-linux | gnu-kfreebsd )
2442 hpux10-20 | hpux11 )
2446 SYSTEM_TYPE=windows-nt
2449 SYSTEM_TYPE=berkeley-unix
2452 solaris | unixware )
2453 SYSTEM_TYPE=usg-unix-v
2458 AC_SUBST([LIB_MATH])
2459 AC_DEFINE_UNQUOTED([SYSTEM_TYPE], ["$SYSTEM_TYPE"],
2460 [The type of system you are compiling for; sets 'system-type'.])
2461 AC_SUBST([SYSTEM_TYPE])
2463 # Check for pw_gecos in struct passwd; this is known to be missing on
2466 AC_CHECK_MEMBERS([struct passwd.pw_gecos], [], [], [#include <pwd.h>])
2468 pre_PKG_CONFIG_CFLAGS=$CFLAGS
2469 pre_PKG_CONFIG_LIBS=$LIBS
2471 dnl pkg-config does not work when cross-compiling for Android.
2472 if test "${ANDROID}" != "yes"; then
2473 PKG_PROG_PKG_CONFIG([0.9.0])
2476 dnl EMACS_CHECK_MODULES([GSTUFF], [gtk+-2.0 >= 1.3 glib = 1.3.4])
2477 dnl acts like PKG_CHECK_MODULES([GSTUFF], [gtk+-2.0 >= 1.3 glib = 1.3.4],
2478 dnl [HAVE_GSTUFF=yes], [HAVE_GSTUFF=no]) -- see pkg-config man page --
2479 dnl except that it postprocesses CFLAGS as needed for --enable-gcc-warnings.
2480 dnl EMACS_CHECK_MODULES accepts optional 3rd and 4th arguments that
2481 dnl can take the place of the default HAVE_GSTUFF=yes and HAVE_GSTUFF=no
2483 AC_DEFUN([EMACS_CHECK_MODULES],
2484 [AS_IF([test -n "$ndk_INITIALIZED"],
2485 [ndk_CHECK_MODULES([$1], [$2], m4_default([$3], [HAVE_$1=yes]),
2486 m4_default([$4],[HAVE_$1=no]))],
2487 [PKG_CHECK_MODULES([$1], [$2],
2488 [$1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
2489 m4_default([$3], [HAVE_$1=yes])],
2490 [m4_default([$4], [HAVE_$1=no])])])])
2492 dnl EMACS_CHECK_LIB(NAME, FUNCTION, ACTION-IF-FOUND, ACTION-IF-NOT-FOUND,
2493 dnl OTHER-LIBRARIES, INCLUDES)
2494 dnl ---------------------------------------------------------------------
2495 dnl This is like AC_CHECK_LIB; however, there is no default action, and
2496 dnl when cross-configuring for Android, AC_CHECK_DECLS is called with NAME
2497 dnl and INCLUDES instead, as the library being checked against will likely
2498 dnl be built together with Emacs.
2499 AC_DEFUN([EMACS_CHECK_LIB],
2500 [AS_IF([test -n "$ndk_INITIALIZED"],
2501 [AC_CHECK_DECL([$2], [$3], [$4], [$6])],
2502 [AC_CHECK_LIB([$1], [$2], [$3], [$4], [$5])])])
2505 if test "${with_sound}" != "no"; then
2506 # Sound support for GNU/Linux, the free BSDs, MinGW, and Cygwin.
2507 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h mmsystem.h],
2508 [have_sound_header=yes], [], [
2510 #define WIN32_LEAN_AND_MEAN
2511 #include <windows.h>
2514 test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
2515 AC_MSG_ERROR([OSS sound support requested but not found.])
2517 if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
2518 # OSS emulation library used on NetBSD and OpenBSD.
2519 AC_CHECK_LIB([ossaudio], [_oss_ioctl], [LIBSOUND=-lossaudio], [LIBSOUND=])
2520 test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
2521 AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
2522 # On {Net,Open}BSD use the system audio library instead of
2523 # potentially switching to ALSA below, as ALSA on these appears to
2524 # just wrap system libraries.
2525 test "${with_sound}" = "yes" && test "$LIBSOUND" = "-lossaudio" && \
2526 with_sound="bsd-ossaudio"
2528 AC_SUBST([LIBSOUND])
2530 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
2532 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
2533 EMACS_CHECK_MODULES([ALSA], [$ALSA_MODULES])
2534 if test $HAVE_ALSA = yes; then
2535 LIBSOUND="$LIBSOUND $ALSA_LIBS"
2536 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
2537 AC_DEFINE([HAVE_ALSA], [1], [Define to 1 if ALSA is available.])
2538 elif test "${with_sound}" = "alsa"; then
2539 AC_MSG_ERROR([ALSA sound support requested but not found.])
2541 fi dnl with_sound = alsa|yes
2543 dnl Define HAVE_SOUND if we have sound support. We know it works and
2544 dnl compiles only on the specified platforms. For others, it
2545 dnl probably doesn't make sense to try.
2546 dnl FIXME So surely we should bypass this whole section if not using
2547 dnl one of these platforms?
2548 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
2550 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
2551 dnl Adjust the --with-sound help text if you change this.
2552 gnu-linux|freebsd|netbsd|mingw32|cygwin)
2553 AC_DEFINE([HAVE_SOUND], [1], [Define to 1 if you have sound support.])
2559 AC_SUBST([CFLAGS_SOUND])
2562 dnl checks for header files
2563 AC_CHECK_HEADERS_ONCE(
2570 sys/utsname.h pwd.h util.h
2571 sanitizer/lsan_interface.h
2572 sanitizer/asan_interface.h
2573 sanitizer/common_interface_defs.h])
2575 AC_CACHE_CHECK([for ADDR_NO_RANDOMIZE],
2576 [emacs_cv_personality_addr_no_randomize],
2578 [AC_LANG_PROGRAM([[#include <sys/personality.h>]],
2579 [[personality (personality (0xffffffff)
2580 | ADDR_NO_RANDOMIZE)]])],
2581 [emacs_cv_personality_addr_no_randomize=yes],
2582 [emacs_cv_personality_addr_no_randomize=no])])
2583 if test $emacs_cv_personality_addr_no_randomize = yes; then
2584 AC_DEFINE([HAVE_PERSONALITY_ADDR_NO_RANDOMIZE], [1],
2585 [Define to 1 if personality flag ADDR_NO_RANDOMIZE exists.])
2588 # Note that Solaris has sys/sysinfo.h which defines struct
2589 # sysinfo as well. To make sure that we're using GNU/Linux
2590 # sysinfo, we explicitly set one of its fields.
2591 if test "$ac_cv_header_sys_sysinfo_h" = yes; then
2592 AC_CACHE_CHECK([if Linux sysinfo may be used], [emacs_cv_linux_sysinfo],
2593 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
2594 [[struct sysinfo si;
2597 emacs_cv_linux_sysinfo=yes, emacs_cv_linux_sysinfo=no)])
2599 if test $emacs_cv_linux_sysinfo = yes; then
2600 AC_DEFINE([HAVE_LINUX_SYSINFO], [1],
2601 [Define to 1 if you have Linux sysinfo function.])
2602 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
2603 [[struct sysinfo si; return si.mem_unit]])],
2604 AC_DEFINE([LINUX_SYSINFO_UNIT], [1],
2605 [Define to 1 if Linux sysinfo sizes are in multiples of mem_unit bytes.]))
2609 dnl On Solaris 8 there's a compilation warning for term.h because
2610 dnl it doesn't define 'bool'.
2611 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[#include <term.h>]],[[]])],
2612 [AC_DEFINE([HAVE_TERM_H], [1],
2613 [Define to 1 if you have the <term.h> header file.])])
2616 AC_CHECK_HEADERS_ONCE([sys/socket.h])
2617 AC_CHECK_HEADERS([net/if.h], [], [], [AC_INCLUDES_DEFAULT
2618 #if HAVE_SYS_SOCKET_H
2619 #include <sys/socket.h>
2621 AC_CHECK_HEADERS([ifaddrs.h], [], [], [AC_INCLUDES_DEFAULT
2622 #if HAVE_SYS_SOCKET_H
2623 #include <sys/socket.h>
2625 AC_CHECK_HEADERS([net/if_dl.h], [], [], [AC_INCLUDES_DEFAULT
2626 #if HAVE_SYS_SOCKET_H
2627 #include <sys/socket.h>
2630 dnl checks for structure members
2631 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
2632 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
2633 struct ifreq.ifr_addr,
2634 struct ifreq.ifr_addr.sa_len], [], [],
2635 [AC_INCLUDES_DEFAULT
2636 #if HAVE_SYS_SOCKET_H
2637 #include <sys/socket.h>
2643 dnl Check for endianness.
2644 dnl AC_C_BIGENDIAN is done by gnulib.
2646 dnl check for Make feature
2649 AUTODEPEND_PARENTS='lib src'
2650 dnl check if we have GCC and autodepend is on.
2651 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
2652 AC_CACHE_CHECK([whether gcc understands -MMD -MF], [emacs_cv_autodepend],
2653 [SAVE_CFLAGS="$CFLAGS"
2654 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
2655 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
2656 [emacs_cv_autodepend=yes], [emacs_cv_autodepend=no])
2657 CFLAGS="$SAVE_CFLAGS"
2658 test -f deps.d || emacs_cv_autodepend=no
2660 if test $emacs_cv_autodepend = yes; then
2664 AC_SUBST([AUTO_DEPEND])
2666 #### Choose a window system.
2668 ## We leave window_system equal to none if
2669 ## we end up building without one. Any new window system should
2670 ## set window_system to an appropriate value and add objects to
2671 ## window-system-specific substs.
2677 # ANDROID_CFLAGS is a precious variable used to pass information to
2678 # the cross-compiler.
2679 ANDROID_BUILD_CFLAGS=
2683 AS_IF([test "$ANDROID" = "yes"],[
2684 window_system=android
2686 ANDROID_OBJ="androidterm.o androidfns.o androidfont.o androidmenu.o"
2687 ANDROID_OBJ="$ANDROID_OBJ android.o"
2691 AC_DEFINE([HAVE_ANDROID], [1], [Define to 1 if Emacs is being built
2692 with Android support])
2694 AS_IF([test "$XCONFIGURE" != "android"], [
2695 AC_DEFINE([ANDROID_STUBIFY], [1], [Define to 1 if Emacs is being built
2696 for Android, but all API calls need to be stubbed out])
2698 # Now set any shared user ID that was specified.
2699 AS_IF([test -n "$with_shared_user_id"],
2700 [emacs_val=$with_shared_user_id
2701 emacs_val=`AS_ECHO(["$with_shared_user_id"]) \
2702 | sed -e 's/"/\\"/'`
2703 emacs_val="\"$emacs_val\""
2704 ANDROID_SHARED_USER_ID="android:sharedUserId=$emacs_val"
2705 # `android:sharedUserName' is required for sharedUserID to work
2706 # on recent Android releases. It does not otherwise affect the
2707 # behavior of any code.
2708 emacs_val="\"@string/shared_user_name\""
2709 ANDROID_SHARED_USER_NAME="android:sharedUserLabel=$emacs_val"])],[
2710 # Emacs will be built as a shared library, and a wrapper around it
2711 # will also be built for the benefit of applications. This
2712 # requires Emacs be built as a position independent executable.
2713 ANDROID_BUILD_CFLAGS="-fPIC -fvisibility=hidden"
2715 # Graphics code in sfntfont-android.c benefits heavily from
2717 ANDROID_BUILD_CFLAGS="$ANDROID_BUILD_CFLAGS -ftree-vectorize"
2719 # Link with libraries required for Android support.
2720 # API 9 and later require `-landroid' for the asset manager.
2721 # API 8 uses an emulation via the JNI.
2722 AS_IF([test "$ANDROID_SDK" -lt "9"],
2723 [ANDROID_LIBS="-llog -ljnigraphics"],
2724 [ANDROID_LIBS="-landroid -llog -ljnigraphics"])
2726 # This is required to make the system load emacs.apk's libpng
2727 # (among others) instead of the system's own. But it doesn't work
2728 # on all Android versions yet, so for now just suffix shared
2729 # libraries with _emacs.
2730 # ANDROID_LDFLAGS="-Wl,-rpath,'\$\$ORIGIN'"
2732 # Link with the sfnt font library and sfntfont.o, along with
2733 # sfntfont-android.o.
2734 ANDROID_OBJ="$ANDROID_OBJ sfnt.o sfntfont.o sfntfont-android.o"
2736 # Build androidselect.o and androidvfs.o.
2737 ANDROID_OBJ="$ANDROID_OBJ androidselect.o androidvfs.o"
2739 # Check for some functions not always present in the NDK.
2740 AC_CHECK_DECLS([android_get_device_api_level])
2742 # Mention this build is really for Android.
2743 REALLY_ANDROID=yes])])
2746 AC_SUBST([ANDROID_OBJ])
2747 AC_SUBST([ANDROID_LIBS])
2748 AC_SUBST([ANDROID_LDFLAGS])
2749 AC_SUBST([ANDROID_BUILD_CFLAGS])
2750 AC_SUBST([ANDROID_SHARED_USER_ID])
2751 AC_SUBST([ANDROID_SHARED_USER_NAME])
2753 if test "${with_pgtk}" = "yes"; then
2757 if test "${ANDROID}" != "yes"; then
2759 if test "$no_x" != yes && test "${with_pgtk}" != "yes"; then
2764 LD_SWITCH_X_SITE_RPATH=
2765 if test "${x_libraries}" != NONE; then
2766 if test -n "${x_libraries}"; then
2767 LD_SWITCH_X_SITE=-L`AS_ECHO(["$x_libraries"]) | sed -e 's/:/ -L/g'`
2768 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`
2769 AS_ECHO(["$x_libraries"]) | sed -e 's/:/ -Wl,-rpath,/g'
2772 x_default_search_path=""
2773 x_search_path=${x_libraries}
2774 if test -z "${x_search_path}"; then
2775 x_search_path=/usr/lib
2777 for x_library in `AS_ECHO(["$x_search_path:"]) | \
2778 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
2780 ${x_library}/X11/%L/%T/%N%C%S:\
2781 ${x_library}/X11/%l/%T/%N%C%S:\
2782 ${x_library}/X11/%T/%N%C%S:\
2783 ${x_library}/X11/%L/%T/%N%S:\
2784 ${x_library}/X11/%l/%T/%N%S:\
2785 ${x_library}/X11/%T/%N%S"
2786 if test x"${x_default_search_path}" = x; then
2787 x_default_search_path=${x_search_path}
2789 x_default_search_path="${x_search_path}:${x_default_search_path}"
2793 AC_SUBST([LD_SWITCH_X_SITE_RPATH])
2795 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
2796 C_SWITCH_X_SITE=$isystem`AS_ECHO(["$x_includes"]) | sed -e "s/:/ $isystem/g"`
2799 if test x"${x_includes}" = x; then
2800 bitmapdir=/usr/include/X11/bitmaps
2802 # accumulate include directories that have X11 bitmap subdirectories
2804 for bmd in `AS_ECHO(["$x_includes"]) | sed -e 's/:/ /g'`; do
2805 if test -d "${bmd}/X11/bitmaps"; then
2806 bmd_acc="${bmd_acc+$bmd_acc:}${bmd}/X11/bitmaps"
2808 if test -d "${bmd}/bitmaps"; then
2809 bmd_acc="${bmd_acc+$bmd_acc:}${bmd}/bitmaps"
2817 test "${with_ns}" = maybe && test "${opsys}" != darwin && with_ns=no
2819 NS_GNUSTEP_CONFIG=no
2822 tmp_CPPFLAGS="$CPPFLAGS"
2823 tmp_CFLAGS="$CFLAGS"
2824 CPPFLAGS="$CPPFLAGS -x objective-c"
2825 CFLAGS="$CFLAGS -x objective-c"
2828 if test "${with_ns}" != no; then
2829 # macfont.o requires macuvs.h which is absent after 'make extraclean',
2830 # so avoid NS_IMPL_COCOA if macuvs.h is absent.
2831 # Even a headless Emacs can build macuvs.h, so this should let you bootstrap.
2832 if test "${opsys}" = darwin && test -f "$srcdir/src/macuvs.h"; then
2834 ns_appdir=`pwd`/nextstep/Emacs.app
2835 ns_appbindir=${ns_appdir}/Contents/MacOS
2836 ns_applibexecdir=${ns_appdir}/Contents/MacOS/libexec
2837 ns_applibdir=${ns_appdir}/Contents/Frameworks
2838 ns_appresdir=${ns_appdir}/Contents/Resources
2839 ns_appsrc=Cocoa/Emacs.base
2840 ns_fontfile=macfont.o
2841 elif flags=`(gnustep-config --objc-flags) 2>/dev/null`; then
2843 NS_GNUSTEP_CONFIG=yes
2844 GNU_OBJC_CFLAGS="$flags"
2845 LIBS_GNUSTEP=`gnustep-config --gui-libs || exit`
2846 elif test -f $GNUSTEP_CONFIG_FILE; then
2848 dnl FIXME sourcing this several times in subshells seems inefficient.
2849 GNUSTEP_SYSTEM_HEADERS=`. $GNUSTEP_CONFIG_FILE \
2850 && AS_ECHO(["$GNUSTEP_SYSTEM_HEADERS"])`
2851 GNUSTEP_SYSTEM_LIBRARIES=` . $GNUSTEP_CONFIG_FILE \
2852 && AS_ECHO(["$GNUSTEP_SYSTEM_LIBRARIES"])`
2853 dnl I seemed to need these as well with GNUstep-startup 0.25.
2854 GNUSTEP_LOCAL_HEADERS=`. $GNUSTEP_CONFIG_FILE \
2855 && AS_ECHO(["$GNUSTEP_LOCAL_HEADERS"])`
2856 GNUSTEP_LOCAL_LIBRARIES=`. $GNUSTEP_CONFIG_FILE \
2857 && AS_ECHO(["$GNUSTEP_LOCAL_LIBRARIES"])`
2858 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
2859 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
2860 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
2861 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
2862 CPPFLAGS="$CPPFLAGS -isystem ${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
2863 CFLAGS="$CFLAGS -isystem ${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
2864 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
2865 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
2866 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
2867 dnl If they had chosen to either define it or not, we could have
2868 dnl just used AC_CHECK_DECL here.
2869 AC_CACHE_CHECK([if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS],
2870 [emacs_cv_objc_exceptions],
2872 [AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
2873 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
2878 [emacs_cv_objc_exceptions=yes],
2879 [emacs_cv_objc_exceptions=no])])
2880 if test $emacs_cv_objc_exceptions = yes; then
2881 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
2882 AC_DEFINE([_NATIVE_OBJC_EXCEPTIONS], [1],
2883 [Define if GNUstep uses ObjC exceptions.])
2884 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fobjc-exceptions"
2887 if test $NS_IMPL_GNUSTEP = yes; then
2888 ns_appdir=`pwd`/nextstep/Emacs.app
2889 ns_appbindir=${ns_appdir}
2890 ns_applibexecdir=${ns_appdir}/libexec
2891 ns_applibdir=${ns_appdir}/Frameworks
2892 ns_appresdir=${ns_appdir}/Resources
2893 ns_appsrc=GNUstep/Emacs.base
2894 ns_fontfile=nsfont.o
2897 dnl This is only used while we test the NS headers, it gets reset below.
2898 CPPFLAGS="$CPPFLAGS $GNU_OBJC_CFLAGS"
2899 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
2901 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
2902 [AC_MSG_ERROR([The include files (AppKit/AppKit.h etc) that
2903 are required for a Nextstep build are missing or cannot be compiled.
2904 Either fix this, or re-configure with the option '--without-ns'.])])
2907 if test "${NS_IMPL_COCOA}" = "yes"; then
2908 AC_MSG_CHECKING([for Mac OS X 10.6 or newer])
2909 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
2911 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
2912 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1060
2915 error "Mac OS X 10.6 or newer required";
2919 [ns_osx_have_106=yes],
2920 [ns_osx_have_106=no])
2921 AC_MSG_RESULT([$ns_osx_have_106])
2923 if test $ns_osx_have_106 = no; then
2924 AC_MSG_ERROR([Mac OS X 10.6 or newer is required]);
2928 AC_CACHE_CHECK([for Mac OS X 12.0 or later],
2929 [emacs_cv_macosx_12_0],
2930 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2931 #include <AvailabilityMacros.h>
2932 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 120000
2933 Mac OS X 12.x or later.
2935 ]])], [emacs_cv_macosx_12_0=no],
2936 [emacs_cv_macosx_12_0=yes]))
2938 if test "${with_native_image_api}" = yes; then
2939 AC_DEFINE([HAVE_NATIVE_IMAGE_API], [1],
2940 [Define to use native OS APIs for images.])
2941 NATIVE_IMAGE_API="yes (ns)"
2945 AC_SUBST([LIBS_GNUSTEP])
2947 INSTALL_ARCH_INDEP_EXTRA=install-etc
2948 ns_self_contained=no
2951 if test "${HAVE_NS}" = yes; then
2952 if test "$with_toolkit_scroll_bars" = "no"; then
2953 AC_MSG_WARN([Non-toolkit scroll bars are not implemented for Nextstep.])
2956 window_system=nextstep
2957 # set up packaging dirs
2958 if test "${EN_NS_SELF_CONTAINED}" = yes; then
2959 AC_DEFINE([NS_SELF_CONTAINED], [1], [Build an NS bundled app])
2960 ns_self_contained=yes
2961 prefix=${ns_appresdir}
2962 exec_prefix=${ns_appbindir}
2963 dnl This one isn't really used, only archlibdir is.
2964 libexecdir="\${ns_applibexecdir}"
2965 archlibdir="\${ns_applibexecdir}"
2966 etcdocdir="\${ns_appresdir}/etc"
2967 etcdir="\${ns_appresdir}/etc"
2968 dnl FIXME maybe set datarootdir instead.
2969 dnl That would also get applications, icons, man.
2970 infodir="\${ns_appresdir}/info"
2971 mandir="\${ns_appresdir}/man"
2972 lispdir="\${ns_appresdir}/lisp"
2973 lispdirrel="\${ns_appresdir}/lisp"
2974 test "$locallisppathset" = no && locallisppath="\${ns_appresdir}/site-lisp"
2975 INSTALL_ARCH_INDEP_EXTRA=
2978 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o $ns_fontfile"
2980 CFLAGS="$tmp_CFLAGS"
2981 CPPFLAGS="$tmp_CPPFLAGS"
2982 AC_SUBST([INSTALL_ARCH_INDEP_EXTRA])
2983 AC_SUBST([ns_self_contained])
2985 AC_SUBST([NS_OBJC_OBJ])
2987 if test "${HAVE_NS}" = yes; then
2988 AC_LANG_PUSH([Objective C])
2990 [if the Objective C compiler supports instancetype],
2991 [emacs_cv_objc_instancetype],
2993 [AC_LANG_SOURCE([[@interface Test
2994 + (instancetype)test;
2996 [emacs_cv_objc_instancetype=yes],
2997 [emacs_cv_objc_instancetype=no])])
2999 if test x$emacs_cv_objc_instancetype = xyes ; then
3000 AC_DEFINE([NATIVE_OBJC_INSTANCETYPE], [1],
3001 [Define if ObjC compiler supports instancetype natively.])
3005 [if the Objective C compiler defaults to C99],
3006 [emacs_cv_objc_c99],
3008 [AC_LANG_PROGRAM([], [[for (int i = 0;;);]])],
3009 [emacs_cv_objc_c99=yes],
3010 [emacs_cv_objc_c99=no])])
3012 if test x$emacs_cv_objc_c99 = xno ; then
3013 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -std=c99"
3015 AC_LANG_POP([Objective C])
3019 if test "${opsys}" = "haiku" && test "${with_be_app}" = "yes"; then
3020 dnl Only GCC is supported. Clang might work, but it's
3021 dnl not reliable, so don't check for it here.
3022 AC_PROG_CXX([gcc g++])
3023 CXXFLAGS="$CXXFLAGS $emacs_g3_CFLAGS"
3025 AC_CHECK_HEADER([app/Application.h], [HAVE_BE_APP=yes],
3026 [AC_MSG_ERROR([The Application Kit headers required for building
3027 with the Application Kit were not found or cannot be compiled. Either fix this, or
3028 re-configure with the option '--without-be-app'.])])
3032 AC_SUBST([HAVE_BE_APP])
3042 if test "${with_w32}" != no; then
3045 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
3046 [AC_MSG_ERROR(['--with-w32' was specified, but windows.h
3047 cannot be found.])])
3050 ## Using --with-w32 with MinGW is a no-op, but we allow it.
3053 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
3058 if test "${opsys}" = "mingw32"; then
3059 AC_CACHE_CHECK([whether Windows API headers are recent enough], [emacs_cv_w32api],
3060 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
3061 #include <windows.h>
3062 #include <usp10.h>]],
3063 [[PIMAGE_NT_HEADERS pHeader;
3064 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
3065 [emacs_cv_w32api=yes], [emacs_cv_w32api=no])])
3066 if test "${emacs_cv_w32api}" = "no"; then
3067 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
3069 HAVE_W32=${emacs_cv_w32api}
3078 if test "${HAVE_W32}" = "yes"; then
3079 AC_DEFINE([HAVE_NTGUI], [1], [Define to use native MS Windows GUI.])
3080 if test "$with_toolkit_scroll_bars" = "no"; then
3081 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for w32 build.])
3083 AC_CHECK_TOOL([WINDRES], [windres],
3084 [AC_MSG_ERROR([No resource compiler found.])])
3085 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
3086 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o w32cygwinx.o"
3087 EMACSRES="emacs.res"
3088 case "$canonical" in
3089 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
3090 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
3092 dnl Construct something of the form "24,4,0,0" with 4 components.
3093 comma_version=`echo "${PACKAGE_VERSION}.0.0" | sed -e 's/\./,/g' -e 's/^\([[^,]]*,[[^,]]*,[[^,]]*,[[^,]]*\).*/\1/'`
3095 comma_space_version=`echo "$comma_version" | sed 's/,/, /g'`
3096 AC_SUBST([comma_version])
3097 AC_SUBST([comma_space_version])
3098 AC_CONFIG_FILES([nt/emacs.rc nt/emacsclient.rc])
3099 if test "${opsys}" = "cygwin"; then
3100 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lusp10 -lgdi32"
3101 W32_LIBS="$W32_LIBS -lole32 -lcomdlg32 -lcomctl32 -lwinspool"
3102 # Tell the linker that emacs.res is an object (which we compile from
3103 # the rc file), not a linker script.
3104 W32_RES_LINK="-Wl,emacs.res"
3106 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
3107 dnl FIXME: This should probably be supported for Cygwin/w32 as
3108 dnl well, but the Cygwin build needs to link against -lgdiplus
3109 if test "${with_native_image_api}" = yes; then
3110 AC_DEFINE([HAVE_NATIVE_IMAGE_API], [1],
3111 [Define to use native OS APIs for images.])
3112 NATIVE_IMAGE_API="yes (w32)"
3113 W32_OBJ="$W32_OBJ w32image.o"
3115 W32_LIBS="$W32_LIBS -lwinmm -lusp10 -lgdi32 -lcomdlg32"
3116 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32"
3117 W32_RES_LINK="\$(EMACSRES)"
3118 CLIENTRES="emacsclient.res"
3119 CLIENTW="emacsclientw\$(EXEEXT)"
3120 FIRSTFILE_OBJ=firstfile.o
3123 LIBS_ECLIENT="-lcomctl32"
3124 LIB_WSOCK32="-lwsock32"
3125 NTLIB="ntlib.$ac_objext"
3126 XARGS_LIMIT="-s 10000"
3130 if test "${HAVE_W32}" = "no" && test "${opsys}" = "cygwin"; then
3131 W32_LIBS="-lkernel32"
3132 W32_OBJ="w32cygwinx.o"
3136 AC_SUBST([W32_LIBS])
3137 AC_SUBST([EMACSRES])
3138 AC_SUBST([EMACS_MANIFEST])
3139 AC_SUBST([CLIENTRES])
3141 AC_SUBST([W32_RES_LINK])
3142 AC_SUBST([FIRSTFILE_OBJ])
3145 AC_SUBST([LIBS_ECLIENT])
3146 AC_SUBST([LIB_WSOCK32])
3148 AC_SUBST([XARGS_LIMIT])
3150 if test "${HAVE_W32}" = "yes"; then
3160 if test "$opsys" = "haiku"; then
3161 HAIKU_OBJ="$HAIKU_OBJ haiku.o"
3164 if test "${HAVE_BE_APP}" = "yes"; then
3165 AC_DEFINE([HAVE_HAIKU], [1],
3166 [Define if Emacs will be built with Haiku windowing support])
3169 if test "${HAVE_BE_APP}" = "yes"; then
3172 HAIKU_OBJ="$HAIKU_OBJ haikufns.o haikuterm.o haikumenu.o haikufont.o haikuselect.o haiku_io.o"
3173 HAIKU_CXX_OBJ="haiku_support.o haiku_font_support.o haiku_draw_support.o haiku_select.o"
3174 HAIKU_LIBS="-lbe -lgame -ltranslation -ltracker" # -lgame is needed for set_mouse_position.
3176 if test "${with_native_image_api}" = yes; then
3177 AC_DEFINE([HAVE_NATIVE_IMAGE_API], [1],
3178 [Define to use native OS APIs for images.])
3179 NATIVE_IMAGE_API="yes (haiku)"
3180 HAIKU_OBJ="$HAIKU_OBJ haikuimage.o"
3184 AC_SUBST([HAIKU_LIBS])
3185 AC_SUBST([HAIKU_OBJ])
3186 AC_SUBST([HAIKU_CXX_OBJ])
3187 AC_SUBST([HAIKU_CFLAGS])
3189 ## $window_system is now set to the window system we will
3198 case "${window_system}" in
3203 case "${with_x_toolkit}" in
3204 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
3205 motif ) USE_X_TOOLKIT=MOTIF ;;
3207 term_header=gtkutil.h
3208 dnl Don't set this for GTK. A lot of tests below assumes Xt when
3209 dnl USE_X_TOOLKIT is set.
3210 USE_X_TOOLKIT=none ;;
3211 gtk2 ) with_gtk2=yes
3212 term_header=gtkutil.h
3213 USE_X_TOOLKIT=none ;;
3214 gtk3 ) with_gtk3=yes
3215 term_header=gtkutil.h
3216 USE_X_TOOLKIT=none ;;
3217 no ) USE_X_TOOLKIT=none ;;
3218 dnl If user did not say whether to use a toolkit, make this decision later:
3219 dnl use the toolkit if we have gtk, or X11R5 or newer.
3220 * ) USE_X_TOOLKIT=maybe ;;
3224 term_header=nsterm.h
3227 term_header=w32term.h
3230 term_header=pgtkterm.h
3234 AC_DEFINE([HAVE_PGTK], [1], [Define to 1 if you have pure Gtk+-3.])
3237 term_header=haikuterm.h
3240 term_header=androidterm.h
3244 AC_SUBST([HAVE_PGTK])
3246 if test "$window_system" = none && test "X$with_x" != "Xno"; then
3247 AC_CHECK_PROG([HAVE_XSERVER], [X], [true], [false])
3248 if test "$HAVE_XSERVER" = true ||
3249 test -n "$DISPLAY" ||
3251 for emacs_libX11 in /usr/lib/libX11.*; do break; done
3252 test "$emacs_libX11" != '/usr/lib/libX11.*'
3255 AC_MSG_ERROR([You seem to be running X, but no X development libraries
3256 were found. You should install the relevant development files for X
3257 and for the toolkit you want, such as Gtk+ or Motif. Also make
3258 sure you have development files for image handling, i.e.
3259 tiff, gif, jpeg, png and xpm.
3260 If you are sure you want Emacs compiled without X window support, pass
3266 # Does the opsystem file prohibit the use of the GNU malloc?
3267 # Assume not, until told otherwise.
3271 [whether malloc is Doug Lea style],
3272 [emacs_cv_var_doug_lea_malloc],
3273 [emacs_cv_var_doug_lea_malloc=no
3274 dnl Hooks do not work with address sanitization.
3275 if test "$emacs_cv_sanitize_address" != yes; then
3278 [[#include <malloc.h>
3279 static void hook (void) {}]],
3280 [[malloc_set_state (malloc_get_state ());
3281 __after_morecore_hook = hook;
3282 __malloc_initialize_hook = hook;]])],
3283 [emacs_cv_var_doug_lea_malloc=yes])
3285 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
3290 dnl This must be before the test of $ac_cv_func_sbrk below.
3291 AC_CHECK_FUNCS_ONCE([sbrk])
3293 test $with_unexec = yes &&
3295 ## darwin ld insists on the use of malloc routines in the System framework.
3296 darwin | mingw32 | nacl | solaris) ;;
3297 cygwin | qnxnto | freebsd)
3300 *) test "$ac_cv_func_sbrk" = yes && system_malloc=$emacs_cv_sanitize_address;;
3303 if test "${system_malloc}" != yes && test "${doug_lea_malloc}" != yes \
3304 && test "${UNEXEC_OBJ}" = unexelf.o; then
3310 if test "${system_malloc}" = "yes"; then
3311 AC_DEFINE([SYSTEM_MALLOC], [1],
3312 [Define to 1 to use the system memory allocator, even if it is not
3316 (The GNU allocators don't work with this system configuration.)"
3318 elif test "$hybrid_malloc" = yes; then
3319 AC_DEFINE([HYBRID_MALLOC], [1],
3320 [Define to use gmalloc before dumping and the system malloc after.])
3323 GNU_MALLOC_reason=" (only before dumping)"
3324 GMALLOC_OBJ=gmalloc.o
3327 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
3328 VMLIMIT_OBJ=vm-limit.o
3330 AC_CHECK_HEADERS([sys/vlimit.h])
3331 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
3334 [[extern char data_start[]; char ch;]],
3335 [[return data_start < &ch;]])],
3336 [emacs_cv_data_start=yes],
3337 [emacs_cv_data_start=no])])
3338 if test $emacs_cv_data_start = yes; then
3339 AC_DEFINE([HAVE_DATA_START], [1],
3340 [Define to 1 if data_start is the address of the start
3341 of the main data segment.])
3344 AC_SUBST([HYBRID_MALLOC])
3345 AC_SUBST([GMALLOC_OBJ])
3346 AC_SUBST([VMLIMIT_OBJ])
3348 if test "$doug_lea_malloc" = "yes" && test "$hybrid_malloc" != yes; then
3349 if test "$GNU_MALLOC" = yes ; then
3351 (Using Doug Lea's new malloc from the GNU C Library.)"
3353 AC_DEFINE([DOUG_LEA_MALLOC], [1],
3354 [Define to 1 if the system memory allocator is Doug Lea style,
3355 with malloc hooks and malloc_set_state.])
3357 ## Use mmap directly for allocating larger buffers.
3358 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
3359 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
3360 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
3362 mingw32|gnu*) REL_ALLOC=no ;;
3366 if test x"${REL_ALLOC}" = x; then
3367 REL_ALLOC=${GNU_MALLOC}
3370 use_mmap_for_buffers=no
3372 mingw32) use_mmap_for_buffers=yes ;;
3376 if test $use_mmap_for_buffers = yes; then
3377 AC_DEFINE([USE_MMAP_FOR_BUFFERS], [1],
3378 [Define to use mmap to allocate buffer text.])
3382 LIBS="$LIBS_SYSTEM $LIBS"
3384 dnl FIXME replace main with a function we actually want from this library.
3385 AC_CHECK_LIB([Xbsd], [main], [LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd"])
3387 dnl Check for the POSIX thread library.
3389 AC_CHECK_HEADERS_ONCE([pthread.h])
3390 if test "$ac_cv_header_pthread_h" && test "$opsys" != "mingw32"; then
3391 AC_CACHE_CHECK([for pthread library],
3392 [emacs_cv_pthread_lib],
3393 [emacs_cv_pthread_lib=no
3395 for emacs_pthread_lib in 'none needed' -lpthread; do
3396 case $emacs_pthread_lib in
3397 -*) LIBS="$OLD_LIBS $emacs_pthread_lib";;
3401 [[#include <pthread.h>
3403 sigset_t old_mask, new_mask;
3404 void noop (void) {}]],
3405 [[pthread_t th = pthread_self ();
3407 status += pthread_create (&th, 0, 0, 0);
3408 status += pthread_sigmask (SIG_BLOCK, &new_mask, &old_mask);
3409 status += pthread_kill (th, 0);
3410 #if ! (defined SYSTEM_MALLOC || defined HYBRID_MALLOC \
3411 || defined DOUG_LEA_MALLOC)
3412 /* Test for pthread_atfork only if gmalloc uses it,
3413 as older-style hosts like MirBSD 10 lack it. */
3414 status += pthread_atfork (noop, noop, noop);
3417 [emacs_cv_pthread_lib=$emacs_pthread_lib])
3419 if test "$emacs_cv_pthread_lib" != no; then
3423 if test "$emacs_cv_pthread_lib" != no; then
3424 AC_DEFINE([HAVE_PTHREAD], [1], [Define to 1 if you have POSIX threads.])
3425 case $emacs_cv_pthread_lib in
3426 -*) LIB_PTHREAD=$emacs_cv_pthread_lib;;
3428 ac_cv_func_pthread_sigmask=yes
3429 # Some systems optimize for single-threaded programs by default, and
3430 # need special flags to disable these optimizations. For example, the
3431 # definition of 'errno' in <errno.h>.
3434 AC_DEFINE([_REENTRANT], [1],
3435 [Define to 1 if your system requires this in multithreaded code.]);;
3437 AC_DEFINE([_THREAD_SAFE], [1],
3438 [Define to 1 if your system requires this in multithreaded code.]);;
3442 AC_SUBST([LIB_PTHREAD])
3444 AC_MSG_CHECKING([for thread support])
3446 if test "$with_threads" = yes; then
3447 if test "$emacs_cv_pthread_lib" != no; then
3448 AC_DEFINE([THREADS_ENABLED], [1],
3449 [Define to 1 if you want elisp thread support.])
3451 elif test "${opsys}" = "mingw32"; then
3452 dnl MinGW can do native Windows threads even without pthreads
3453 AC_DEFINE([THREADS_ENABLED], [1],
3454 [Define to 1 if you want elisp thread support.])
3458 AC_MSG_RESULT([$threads_enabled])
3460 dnl Check for need for bigtoc support on IBM AIX
3464 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
3466 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
3467 *) gdb_cv_bigtoc=-bbigtoc ;;
3470 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
3471 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
3476 # Change CFLAGS, CPPFLAGS, and LIBS temporarily so that C_SWITCH_X_SITE
3477 # is for the tests that follow. We set them back later on.
3479 REAL_CFLAGS="$CFLAGS"
3480 REAL_CPPFLAGS="$CPPFLAGS"
3483 if test "${HAVE_X11}" = "yes"; then
3484 DEFS="$C_SWITCH_X_SITE $DEFS"
3485 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
3487 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
3488 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
3490 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
3491 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
3492 # but it's more convenient here to set LD_RUN_PATH since this
3493 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
3494 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
3495 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
3499 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
3500 # header files included from there.
3501 AC_CACHE_CHECK([for Xkb], [emacs_cv_xkb],
3502 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
3503 #include <X11/XKBlib.h>]],
3504 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
3506 [emacs_cv_xkb=no])])
3507 if test $emacs_cv_xkb = yes; then
3508 AC_DEFINE([HAVE_XKB], [1], [Define to 1 if you have the Xkb extension.])
3509 AC_CHECK_FUNCS([XkbRefreshKeyboardMapping XkbFreeNames])
3512 AC_CHECK_FUNCS([XrmSetDatabase XScreenResourceString XScreenNumberOfScreen])
3513 AC_CHECK_FUNCS([XDisplayCells XDestroySubwindows])
3516 if test "${window_system}" = "x11"; then
3517 AC_MSG_CHECKING([X11 version 6])
3518 AC_CACHE_VAL([emacs_cv_x11_version_6],
3519 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
3520 [[#if XlibSpecificationRelease < 6
3523 ]])], [emacs_cv_x11_version_6=yes],
3524 [emacs_cv_x11_version_6=no])])
3525 if test $emacs_cv_x11_version_6 = yes; then
3526 AC_MSG_RESULT([6 or newer])
3527 AC_DEFINE([HAVE_X11R6], [1],
3528 [Define to 1 if you have the X11R6 or newer version of Xlib.])
3529 AC_DEFINE([HAVE_X_I18N], [1], [Define if you have usable i18n support.])
3530 AC_CHECK_MEMBERS([XICCallback.callback], [], [], [#include <X11/Xlib.h>])
3531 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
3535 *) AC_DEFINE([HAVE_X11R6_XIM], [1],
3536 [Define if you have usable X11R6-style XIM support.])
3540 AC_MSG_RESULT([before 6])
3544 ### Use -lrsvg-2 if available, unless '--with-rsvg=no' is specified.
3546 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" \
3547 || test "${opsys}" = "mingw32" || test "${HAVE_BE_APP}" = "yes" \
3548 || test "${window_system}" = "pgtk"; then
3549 if test "${with_rsvg}" != "no"; then
3550 RSVG_REQUIRED=2.14.0
3551 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
3553 EMACS_CHECK_MODULES([RSVG], [$RSVG_MODULE])
3554 AC_SUBST([RSVG_CFLAGS])
3555 AC_SUBST([RSVG_LIBS])
3557 if test $HAVE_RSVG = yes; then
3558 AC_DEFINE([HAVE_RSVG], [1], [Define to 1 if using librsvg.])
3559 CFLAGS="$CFLAGS $RSVG_CFLAGS"
3560 # Windows loads librsvg dynamically
3561 if test "${opsys}" = "mingw32"; then
3568 ### Use -lwebp if available, unless '--with-webp=no'
3570 if test "${with_webp}" != "no"; then
3571 if test "${HAVE_X11}" = "yes" || test "${opsys}" = "mingw32" \
3572 || test "${HAVE_W32}" = "yes" || test "${HAVE_NS}" = "yes" \
3573 || test "${HAVE_BE_APP}" = "yes" || test "${HAVE_PGTK}" = "yes" \
3574 || test "${REALLY_ANDROID}" = "yes"; then
3576 WEBP_MODULE="libwebpdemux >= $WEBP_REQUIRED"
3578 EMACS_CHECK_MODULES([WEBP], [$WEBP_MODULE])
3580 # WebPGetInfo is sometimes not present inside libwebpdemux, so
3581 # if it does not link, also check for libwebpdecoder.
3585 CFLAGS="$CFLAGS $WEBP_CFLAGS"
3586 LIBS="$LIBS $WEBP_LIBS"
3588 AS_IF([test "$REALLY_ANDROID" != "yes"], [
3589 AC_CHECK_FUNC([WebPGetInfo], [],
3590 [WEBP_MODULE="$WEBP_MODULE libwebpdecoder >= $WEBP_REQUIRED"
3592 AS_UNSET([WEBP_LIBS])
3593 AS_UNSET([WEBP_CFLAGS])
3594 EMACS_CHECK_MODULES([WEBP], [$WEBP_MODULE])])])
3599 AC_SUBST([WEBP_CFLAGS])
3600 AC_SUBST([WEBP_LIBS])
3602 if test $HAVE_WEBP = yes; then
3603 AC_DEFINE([HAVE_WEBP], [1], [Define to 1 if using libwebp.])
3604 # Windows loads libwebp dynamically
3605 if test "${opsys}" = "mingw32"; then
3611 ### Use -lsqlite3 if available, unless '--with-sqlite3=no'
3615 if test "${with_sqlite3}" != "no"; then
3616 if test "${REALLY_ANDROID}" = "yes"; then
3617 ndk_SEARCH_MODULE([sqlite3], [SQLITE3], [HAVE_SQLITE3=yes])
3619 if test "$HAVE_SQLITE3" = "yes"; then
3620 SAVE_CFLAGS="$CFLAGS"
3621 CFLAGS="$CFLAGS $SQLITE3_CFLAGS"
3622 AC_CHECK_DECL([sqlite3_open_v2], [HAVE_SQLITE=yes],
3623 [HAVE_SQLITE3=no], [#include <sqlite3.h>])
3624 CFLAGS="$SAVE_CFLAGS"
3627 AC_CHECK_LIB([sqlite3], [sqlite3_open_v2],
3630 if test "$HAVE_SQLITE3" = "yes"; then
3631 SQLITE3_LIBS=-lsqlite3
3632 LIBS="$SQLITE3_LIBS $LIBS"
3633 # Windows loads libsqlite dynamically
3634 if test "${opsys}" = "mingw32"; then
3637 AC_CHECK_LIB([sqlite3], [sqlite3_load_extension],
3638 [HAVE_SQLITE3_LOAD_EXTENSION=yes],
3639 [HAVE_SQLITE3_LOAD_EXTENSION=no])
3640 if test "$HAVE_SQLITE3_LOAD_EXTENSION" = "yes"; then
3641 AC_DEFINE([HAVE_SQLITE3_LOAD_EXTENSION], [1],
3642 [Define to 1 if sqlite3 supports loading extensions.])
3647 if test "$HAVE_SQLITE3" = "yes"; then
3648 AC_DEFINE([HAVE_SQLITE3], [1],
3649 [Define to 1 if you have the libsqlite3 library (-lsqlite).])
3653 AC_SUBST([SQLITE3_LIBS])
3654 AC_SUBST([SQLITE3_CFLAGS])
3657 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${HAVE_W32}" = "yes" || \
3658 test "${HAVE_BE_APP}" = "yes" || test "${window_system}" = "pgtk" || \
3659 test "${REALLY_ANDROID}" = "yes"; then
3660 if test "${with_imagemagick}" != "no"; then
3661 if test -n "$BREW"; then
3662 # Homebrew doesn't link ImageMagick 6 by default, so make sure
3663 # pkgconfig can find it.
3664 export PKG_CONFIG_PATH="$PKG_CONFIG_PATH$PATH_SEPARATOR`$BREW --prefix imagemagick@6 2>/dev/null`/lib/pkgconfig"
3667 EMACS_CHECK_MODULES([IMAGEMAGICK], [MagickWand >= 7])
3668 if test $HAVE_IMAGEMAGICK = yes; then
3669 AC_DEFINE([HAVE_IMAGEMAGICK7], [1],
3670 [Define to 1 if using ImageMagick7.])
3672 ## 6.3.5 is the earliest version known to work; see Bug#17339.
3673 ## 6.8.2 makes Emacs crash; see Bug#13867.
3674 EMACS_CHECK_MODULES([IMAGEMAGICK], [Wand >= 6.3.5 Wand != 6.8.2])
3677 if test $HAVE_IMAGEMAGICK = yes; then
3680 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
3681 LIBS="$IMAGEMAGICK_LIBS $LIBS"
3682 if test "$REALLY_ANDROID" != "yes"; then
3683 AC_CHECK_FUNCS([MagickRelinquishMemory MagickExportImagePixels \
3684 MagickMergeImageLayers MagickAutoOrientImage])
3686 # AC_CHECK_FUNCS doesn't work for Android dependencies because
3687 # they are built alongside Emacs.
3688 AC_CHECK_DECLS([MagickRelinquishMemory,MagickExportImagePixels,
3689 MagickMergeImageLayers,MagickAutoOrientImage],
3690 [], [], [#include <MagickWand/MagickWand.h>])
3694 # Check that ImageMagick links. It does not link on Fedora 25
3695 # with './configure CC=clang', as pkg-config outputs flags like
3696 # -lomp that work for GCC but not Clang.
3697 if test "$ac_cv_func_MagickRelinquishMemory" != yes \
3698 && test "$REALLY_ANDROID" != "yes"; then
3702 if test $HAVE_IMAGEMAGICK = yes; then
3703 AC_DEFINE([HAVE_IMAGEMAGICK], [1], [Define to 1 if using ImageMagick.])
3705 if test "${with_imagemagick}" != "no"; then
3706 AC_MSG_ERROR([ImageMagick wanted, but it does not compile. Maybe some library files are missing?]);
3711 AC_SUBST([IMAGEMAGICK_CFLAGS])
3712 AC_SUBST([IMAGEMAGICK_LIBS])
3716 AC_CHECK_LIB([anl], [getaddrinfo_a], [HAVE_GETADDRINFO_A=yes])
3717 if test "${HAVE_GETADDRINFO_A}" = "yes"; then
3718 AC_DEFINE([HAVE_GETADDRINFO_A], [1],
3719 [Define to 1 if you have getaddrinfo_a for asynchronous DNS resolution.])
3720 GETADDRINFO_A_LIBS="-lanl"
3721 AC_SUBST([GETADDRINFO_A_LIBS])
3726 gtk_term_header=$term_header
3729 if test "${opsys}" != "mingw32"; then
3730 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
3731 GLIB_REQUIRED=2.37.5
3732 if test "${window_system}" = "x11"; then
3735 GTK_REQUIRED=3.22.23
3737 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
3739 dnl Checks for libraries.
3740 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
3741 [pkg_check_gtk=yes], [pkg_check_gtk=no])
3742 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
3743 AC_MSG_ERROR([$GTK_PKG_ERRORS])
3745 if test "$pkg_check_gtk" = "yes"; then
3746 AC_DEFINE([HAVE_GTK3], [1], [Define to 1 if using GTK 3 or later.])
3747 GTK_OBJ=emacsgtkfixed.o
3748 gtk_term_header=gtkutil.h
3749 USE_GTK_TOOLKIT="GTK3"
3750 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
3751 AC_DEFINE([GDK_DISABLE_DEPRECATION_WARNINGS], [1],
3752 [Define to 1 to disable GTK+/GDK deprecation warnings.])
3753 AC_DEFINE([GLIB_DISABLE_DEPRECATION_WARNINGS], [1],
3754 [Define to 1 to disable Glib deprecation warnings.])
3758 gtk3_pkg_errors="$GTK_PKG_ERRORS "
3762 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
3765 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
3767 dnl Checks for libraries.
3768 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
3769 [pkg_check_gtk=yes], [pkg_check_gtk=no])
3770 if test "$pkg_check_gtk" = "no" &&
3771 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
3773 AC_MSG_ERROR([$gtk3_pkg_errors$GTK_PKG_ERRORS])
3775 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
3782 if test x"$pkg_check_gtk" = xyes; then
3784 AC_SUBST([GTK_LIBS])
3785 CFLAGS="$CFLAGS $GTK_CFLAGS"
3786 LIBS="$GTK_LIBS $LIBS"
3787 dnl Try to compile a simple GTK program.
3788 AC_CACHE_CHECK([whether GTK compiles], [emacs_cv_gtk_compiles],
3791 [[/* Check the Gtk and Glib APIs. */
3792 #include <gtk/gtk.h>
3793 #include <glib-object.h>
3795 callback (GObject *go, GParamSpec *spec, gpointer user_data)
3799 GtkSettings *gs = 0;
3800 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
3801 strict C prohibits this. Use gtk_main_iteration to test that the
3802 libraries are there. */
3803 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
3804 0, 0, 0, G_CALLBACK (callback), 0))
3805 gtk_main_iteration ();
3807 [emacs_cv_gtk_compiles=yes], [emacs_cv_gtk_compiles=no])])
3808 if test "${emacs_cv_gtk_compiles}" != "yes"; then
3810 if test "$USE_X_TOOLKIT" != "maybe"; then
3811 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
3814 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
3816 AC_DEFINE([USE_GTK], [1], [Define to 1 if using GTK.])
3817 GTK_OBJ="gtkutil.o $GTK_OBJ"
3818 term_header=$gtk_term_header
3820 AC_MSG_WARN([[Your version of Gtk+ will have problems with
3821 closing open displays. This is no problem if you just use
3822 one display, but if you use more than one and close one of them
3824 See https://gitlab.gnome.org/GNOME/gtk/issues/221]])
3831 if test "${HAVE_GTK}" = "yes"; then
3833 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
3834 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
3835 if test "$with_toolkit_scroll_bars" != no; then
3836 with_toolkit_scroll_bars=yes
3839 term_header=gtkutil.h
3841 if test "${USE_GTK_TOOLKIT}" = GTK2; then
3843 dnl Check if we have the old file selection dialog declared and
3844 dnl in the link library. In 2.x it may be in the library,
3845 dnl but not declared if deprecated featured has been selected out.
3846 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
3847 HAVE_GTK_FILE_SELECTION=no
3848 AC_CHECK_DECL([GTK_TYPE_FILE_SELECTION],
3849 [HAVE_GTK_FILE_SELECTION=yes],
3850 [HAVE_GTK_FILE_SELECTION=no],
3851 [AC_INCLUDES_DEFAULT
3852 #include <gtk/gtk.h>])
3853 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
3854 AC_CHECK_FUNCS([gtk_file_selection_new])
3857 dnl This procedure causes a bug on certain Ubuntu GTK+2 builds
3858 AC_CHECK_FUNCS([gtk_window_set_has_resize_grip])
3867 if test "$window_system" = "pgtk"; then
3868 PGTK_OBJ="pgtkfns.o pgtkterm.o pgtkselect.o pgtkmenu.o pgtkim.o xsettings.o"
3869 PGTK_LIBS="$GTK_LIBS"
3871 AC_SUBST([PGTK_OBJ])
3872 AC_SUBST([PGTK_LIBS])
3874 AC_CHECK_FUNCS([malloc_trim])
3876 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
3877 dnl other platforms.
3880 if test "${with_dbus}" = "yes"; then
3881 EMACS_CHECK_MODULES([DBUS], [dbus-1 >= 1.0])
3882 if test "$HAVE_DBUS" = yes; then
3883 AC_DEFINE([HAVE_DBUS], [1], [Define to 1 if using D-Bus.])
3884 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
3885 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
3888 LIBS="$LIBS $DBUS_LIBS"
3889 AC_CHECK_FUNCS([dbus_watch_get_unix_fd \
3890 dbus_type_is_valid \
3891 dbus_validate_bus_name \
3892 dbus_validate_path \
3893 dbus_validate_interface \
3894 dbus_validate_member])
3899 AC_SUBST([DBUS_CFLAGS])
3900 AC_SUBST([DBUS_LIBS])
3901 AC_SUBST([DBUS_OBJ])
3903 dnl GSettings has been tested under GNU/Linux only.
3905 if test "${HAVE_X11}" = "yes" -o "${window_system}" = "pgtk" && test "${with_gsettings}" = "yes"; then
3906 EMACS_CHECK_MODULES([GSETTINGS], [gio-2.0 >= 2.26])
3907 if test "$HAVE_GSETTINGS" = "yes"; then
3909 CFLAGS="$CFLAGS $GSETTINGS_CFLAGS"
3911 LIBS="$LIBS $GSETTINGS_LIBS"
3912 AC_CACHE_CHECK([whether GSettings is in gio], [emacs_cv_gsettings_in_gio],
3915 [[/* Check that gsettings really is present. */
3916 #include <glib-object.h>
3917 #include <gio/gio.h>
3920 GSettings *settings;
3921 GVariant *val = g_settings_get_value (settings, "");
3923 [emacs_cv_gsettings_in_gio=yes], [emacs_cv_gsettings_in_gio=no])])
3925 if test "$emacs_cv_gsettings_in_gio" = "yes"; then
3926 AC_DEFINE([HAVE_GSETTINGS], [1], [Define to 1 if using GSettings.])
3927 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
3928 SETTINGS_LIBS="$GSETTINGS_LIBS"
3929 test "$with_gconf" = "yes" || with_gconf=no
3935 AC_SUBST([HAVE_GSETTINGS])
3937 dnl GConf has been tested under GNU/Linux only.
3938 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
3940 if test "${HAVE_X11}" = "yes" -o "${window_system}" = "pgtk" && test "${with_gconf}" != "no"; then
3941 EMACS_CHECK_MODULES([GCONF], [gconf-2.0 >= 2.13])
3942 if test "$HAVE_GCONF" = yes; then
3943 AC_DEFINE([HAVE_GCONF], [1], [Define to 1 if using GConf.])
3944 dnl Newer GConf doesn't link with g_objects, so this is not defined.
3945 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
3946 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
3950 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
3951 EMACS_CHECK_MODULES([GOBJECT], [gobject-2.0 >= 2.0])
3952 if test "$HAVE_GOBJECT" = "yes"; then
3953 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
3954 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
3956 SAVE_CFLAGS="$CFLAGS"
3958 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
3959 LIBS="$SETTINGS_LIBS $LIBS"
3960 CFLAGS="$SAVE_CFLAGS"
3963 AC_SUBST([SETTINGS_CFLAGS])
3964 AC_SUBST([SETTINGS_LIBS])
3966 USE_STARTUP_NOTIFICATION=no
3967 if test "${HAVE_GTK}" = "yes"; then
3968 USE_STARTUP_NOTIFICATION=yes
3970 AC_SUBST([USE_STARTUP_NOTIFICATION])
3972 dnl SELinux is available for Linux kernel based systems only.
3973 dnl These include GNU/Linux and Android.
3977 if test "${with_selinux}" = "yes"; then
3978 if test "$REALLY_ANDROID" = "yes"; then
3979 ndk_SEARCH_MODULE([libselinux], [LIBSELINUX],
3980 [HAVE_LIBSELINUX=yes])
3982 AC_CHECK_LIB([selinux], [lgetfilecon],
3983 [HAVE_LIBSELINUX=yes],
3984 [HAVE_LIBSELINUX=no])
3986 if test "$HAVE_LIBSELINUX" = yes; then
3987 AC_DEFINE([HAVE_LIBSELINUX], [1], [Define to 1 if using SELinux.])
3988 if test "$REALLY_ANDROID" != "yes"; then
3989 LIBSELINUX_LIBS=-lselinux
3993 AC_SUBST([LIBSELINUX_LIBS])
3994 AC_SUBST([LIBSELINUX_CFLAGS])
3997 if test "${with_gnutls}" != "no" ; then
3998 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.12.2],
3999 [HAVE_GNUTLS=yes], [HAVE_GNUTLS=no])
4000 if test "${HAVE_GNUTLS}" = "yes"; then
4001 AC_DEFINE([HAVE_GNUTLS], [1], [Define if using GnuTLS.])
4004 # Windows loads GnuTLS dynamically
4005 if test "${opsys}" = "mingw32"; then
4010 AC_SUBST([LIBGNUTLS_LIBS])
4011 AC_SUBST([LIBGNUTLS_CFLAGS])
4014 if test "${with_libsystemd}" = "yes" ; then
4015 dnl This code has been tested with libsystemd 222 and later.
4016 dnl FIXME: Find the earliest version number for which Emacs should work,
4017 dnl and change '222' to that number.
4018 EMACS_CHECK_MODULES([LIBSYSTEMD], [libsystemd >= 222],
4019 [HAVE_LIBSYSTEMD=yes], [HAVE_LIBSYSTEMD=no])
4020 if test "${HAVE_LIBSYSTEMD}" = "yes"; then
4021 AC_DEFINE([HAVE_LIBSYSTEMD], [1], [Define if using libsystemd.])
4025 AC_SUBST([LIBSYSTEMD_LIBS])
4026 AC_SUBST([LIBSYSTEMD_CFLAGS])
4032 if test "${with_tree_sitter}" != "no"; then
4033 dnl Tree-sitter 0.20.2 added support to change the malloc it uses
4034 dnl at runtime, we need that feature. However, tree-sitter's
4035 dnl Makefile has problems, until that's fixed, all tree-sitter
4036 dnl libraries distributed are versioned 0.6.3. We try to
4037 dnl accept a tree-sitter library that has incorrect version as long
4038 dnl as it supports changing malloc.
4039 EMACS_CHECK_MODULES([TREE_SITTER], [tree-sitter >= 0.20.2],
4040 [HAVE_TREE_SITTER=yes], [HAVE_TREE_SITTER=no])
4041 if test "${HAVE_TREE_SITTER}" = yes; then
4042 AC_DEFINE(HAVE_TREE_SITTER, 1, [Define if using tree-sitter.])
4045 EMACS_CHECK_MODULES([TREE_SITTER], [tree-sitter >= 0.6.3],
4046 [HAVE_TREE_SITTER=yes], [HAVE_TREE_SITTER=no])
4047 if test "${HAVE_TREE_SITTER}" = yes; then
4050 CFLAGS="$CFLAGS $TREE_SITTER_CFLAGS"
4051 LIBS="$TREE_SITTER_LIBS $LIBS"
4052 AC_CHECK_FUNCS([ts_set_allocator])
4055 if test "$ac_cv_func_ts_set_allocator" = yes; then
4056 AC_DEFINE(HAVE_TREE_SITTER, 1, [Define if using tree-sitter.])
4059 AC_MSG_ERROR([Tree-sitter library exists but its version is too old]);
4066 # Windows loads tree-sitter dynamically
4067 if test "${opsys}" = "mingw32"; then
4072 AC_SUBST(TREE_SITTER_LIBS)
4073 AC_SUBST(TREE_SITTER_CFLAGS)
4078 dnl MS Windows native file monitor is available for mingw32 only.
4079 case $with_file_notification,$opsys in
4081 AC_MSG_ERROR(['--with-file-notification=w32' was specified, but
4082 this is only supported on MS-Windows native and MinGW32 builds.
4083 Consider using gfile instead.])
4085 w32,* | yes,mingw32)
4086 AC_CHECK_HEADER([windows.h])
4087 if test "$ac_cv_header_windows_h" = yes ; then
4088 AC_DEFINE([HAVE_W32NOTIFY], [1], [Define to 1 to use w32notify.])
4089 NOTIFY_OBJ=w32notify.o
4090 NOTIFY_SUMMARY="yes (w32)"
4094 dnl inotify is available only on Linux-kernel based systems.
4095 case $with_file_notification,$NOTIFY_OBJ in
4097 AC_CHECK_HEADER([sys/inotify.h])
4098 if test "$ac_cv_header_sys_inotify_h" = yes ; then
4099 AC_CHECK_FUNCS([inotify_init inotify_init1])
4100 if test "$ac_cv_func_inotify_init" = yes; then
4101 AC_DEFINE([HAVE_INOTIFY], [1], [Define to 1 to use inotify.])
4102 NOTIFY_OBJ=inotify.o
4103 NOTIFY_SUMMARY="yes (inotify)"
4108 dnl kqueue is available on BSD-like systems.
4109 case $with_file_notification,$NOTIFY_OBJ in
4111 EMACS_CHECK_MODULES([KQUEUE], [libkqueue])
4112 if test "$HAVE_KQUEUE" = "yes"; then
4113 AC_DEFINE([HAVE_KQUEUE], [1], [Define to 1 to use kqueue.])
4114 CPPFLAGS="$CPPFLAGS -I/usr/include/kqueue"
4115 NOTIFY_CFLAGS=$KQUEUE_CFLAGS
4116 NOTIFY_LIBS=$KQUEUE_LIBS
4118 NOTIFY_SUMMARY="yes -lkqueue"
4120 AC_SEARCH_LIBS([kqueue], [])
4121 if test "$ac_cv_search_kqueue" != no; then
4122 AC_DEFINE([HAVE_KQUEUE], [1], [Define to 1 to use kqueue.])
4124 NOTIFY_SUMMARY="yes (kqueue)"
4129 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
4130 dnl has been added in glib 2.24. It has been tested under
4132 case $with_file_notification,$NOTIFY_OBJ in
4134 if test "${HAVE_NS}" = yes; then
4135 AC_MSG_ERROR(['--with-file-notification=gfile' is not supported in NextStep builds.
4136 Consider kqueue instead.])
4138 EMACS_CHECK_MODULES([GFILENOTIFY], [gio-2.0 >= 2.24])
4139 if test "$HAVE_GFILENOTIFY" = "yes"; then
4140 AC_DEFINE([HAVE_GFILENOTIFY], [1], [Define to 1 if using GFile.])
4141 NOTIFY_CFLAGS=$GFILENOTIFY_CFLAGS
4142 NOTIFY_LIBS=$GFILENOTIFY_LIBS
4143 NOTIFY_OBJ=gfilenotify.o
4144 NOTIFY_SUMMARY="yes -lgio (gfile)"
4149 case $with_file_notification,$NOTIFY_OBJ in
4150 yes,* | no,* | *,?*) ;;
4151 *) AC_MSG_ERROR([File notification '$with_file_notification' requested but requirements not found.]) ;;
4154 if test -n "$NOTIFY_OBJ"; then
4155 AC_DEFINE([USE_FILE_NOTIFY], [1],
4156 [Define to 1 if using file notifications.])
4158 AC_SUBST([NOTIFY_CFLAGS])
4159 AC_SUBST([NOTIFY_LIBS])
4160 AC_SUBST([NOTIFY_OBJ])
4162 dnl Do not put whitespace before the #include statements below.
4163 dnl Older compilers (eg sunos4 cc) choke on it.
4166 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
4167 if test "$with_xaw3d" != no; then
4168 AC_CACHE_VAL([emacs_cv_xaw3d],
4169 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
4170 #include <X11/Intrinsic.h>
4171 #include <X11/Xaw3d/Simple.h>]],
4173 [AC_CHECK_LIB([Xaw3d], [XawScrollbarSetThumb],
4174 [emacs_cv_xaw3d=yes],
4175 [emacs_cv_xaw3d=no])],
4176 [emacs_cv_xaw3d=no])])
4180 if test $emacs_cv_xaw3d = yes; then
4181 AC_MSG_CHECKING([for xaw3d])
4182 AC_MSG_RESULT([yes; using Lucid toolkit])
4186 AC_DEFINE([HAVE_XAW3D], [1],
4187 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
4189 AC_MSG_CHECKING([for xaw3d])
4191 AC_MSG_CHECKING([for libXaw])
4192 AC_CACHE_VAL([emacs_cv_xaw],
4193 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
4194 #include <X11/Intrinsic.h>
4195 #include <X11/Xaw/Simple.h>]],
4198 [emacs_cv_xaw=no])])
4199 if test $emacs_cv_xaw = yes; then
4200 AC_MSG_RESULT([yes; using Lucid toolkit])
4203 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
4204 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
4206 AC_MSG_ERROR([No X toolkit could be found.
4207 If you are sure you want Emacs compiled without an X toolkit, pass
4209 to configure. Otherwise, install the development libraries for the toolkit
4210 that you want to use (e.g. Gtk+) and re-run configure.])
4215 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
4219 if test "${USE_X_TOOLKIT}" != "none"; then
4220 AC_MSG_CHECKING([X11 toolkit version])
4221 AC_CACHE_VAL([emacs_cv_x11_toolkit_version_6],
4222 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
4223 [[#if XtSpecificationRelease < 6
4226 ]])], [emacs_cv_x11_toolkit_version_6=yes],
4227 [emacs_cv_x11_toolkit_version_6=no])])
4228 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
4229 if test $emacs_cv_x11_toolkit_version_6 = yes; then
4230 AC_MSG_RESULT([6 or newer])
4231 AC_DEFINE([HAVE_X11XTR6], [1],
4232 [Define to 1 if you have the X11R6 or newer version of Xt.])
4233 LIBXTR6="-lSM -lICE"
4235 ## Use libw.a along with X11R6 Xt.
4236 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
4239 AC_MSG_RESULT([before 6])
4242 dnl If using toolkit, check whether libXmu.a exists.
4243 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
4245 if test x$HAVE_X11XTR6 = xyes; then
4246 OTHERLIBS='-lXt -lSM -lICE'
4250 AC_SEARCH_LIBS([XmuConvertStandardSelection], [Xmu], [], [], [$OTHERLIBS])
4251 if test "X$LIBS" != "X$OLDLIBS"; then
4252 LIBXMU=$ac_cv_search_XmuConvertStandardSelection
4255 dnl ac_cv_search_XmuConvertStandardSelection is also referenced below.
4261 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
4262 # OpenMotif may be installed in such a way on some GNU/Linux systems.
4263 if test -d /usr/include/openmotif; then
4264 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
4265 emacs_cv_openmotif=yes
4266 case "$canonical" in
4267 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
4268 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
4271 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
4274 emacs_cv_openmotif=no
4276 AC_CACHE_CHECK([for (Open)Motif version 2.1], [emacs_cv_motif_version_2_1],
4277 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
4278 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
4281 Motif version prior to 2.1.
4283 [emacs_cv_motif_version_2_1=yes],
4284 [emacs_cv_motif_version_2_1=no])])
4285 if test $emacs_cv_motif_version_2_1 = yes; then
4286 AC_CHECK_LIB([Xp], [XpCreateContext], [LIBXP=-lXp])
4287 if test x$emacs_cv_openmotif = xyes; then
4288 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
4291 # We put this in CFLAGS temporarily to precede other -I options
4292 # that might be in CFLAGS temporarily.
4293 # We put this in CPPFLAGS where it precedes the other -I options.
4294 OLD_CPPFLAGS=$CPPFLAGS
4296 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
4297 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
4298 AC_CACHE_CHECK([for LessTif where some systems put it], [emacs_cv_lesstif],
4301 [[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>
4304 [emacs_cv_lesstif=yes],
4305 [emacs_cv_lesstif=no])])
4306 if test $emacs_cv_lesstif = yes; then
4307 # Make sure this -I option remains in CPPFLAGS after it is set
4308 # back to REAL_CPPFLAGS.
4309 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
4310 # have those other -I options anyway. Ultimately, having this
4311 # directory ultimately in CPPFLAGS will be enough.
4312 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
4313 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
4316 CPPFLAGS=$OLD_CPPFLAGS
4319 AC_CHECK_HEADER([Xm/BulletinB.h], [],
4320 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
4323 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
4324 dnl using Motif or Xaw3d is available, and unless
4325 dnl --with-toolkit-scroll-bars=no was specified.
4327 AH_TEMPLATE([USE_TOOLKIT_SCROLL_BARS],
4328 [Define to 1 if we should use toolkit scroll bars.])dnl
4329 USE_TOOLKIT_SCROLL_BARS=no
4330 if test "${with_toolkit_scroll_bars}" != "no"; then
4331 if test "${USE_X_TOOLKIT}" != "none"; then
4332 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
4333 AC_DEFINE([USE_TOOLKIT_SCROLL_BARS])
4335 USE_TOOLKIT_SCROLL_BARS=yes
4336 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
4337 AC_DEFINE([USE_TOOLKIT_SCROLL_BARS])
4338 USE_TOOLKIT_SCROLL_BARS=yes
4340 elif test "${HAVE_GTK}" = "yes"; then
4341 AC_DEFINE([USE_TOOLKIT_SCROLL_BARS])
4342 USE_TOOLKIT_SCROLL_BARS=yes
4343 elif test "${HAVE_NS}" = "yes"; then
4344 AC_DEFINE([USE_TOOLKIT_SCROLL_BARS])
4345 USE_TOOLKIT_SCROLL_BARS=yes
4346 elif test "${HAVE_W32}" = "yes"; then
4347 AC_DEFINE([USE_TOOLKIT_SCROLL_BARS])
4348 USE_TOOLKIT_SCROLL_BARS=yes
4349 elif test "${HAVE_BE_APP}" = "yes"; then
4350 AC_DEFINE([USE_TOOLKIT_SCROLL_BARS])
4351 USE_TOOLKIT_SCROLL_BARS=yes
4353 elif test "${window_system}" != "x11" && test "${window_system}" != "none"; then
4354 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for your system])
4357 dnl See if XIM is available.
4358 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
4359 #include <X11/Xlib.h>
4360 #include <X11/Xresource.h>]],
4361 [[XIMProc callback;]])],
4363 AC_DEFINE([HAVE_XIM], [1], [Define to 1 if XIM is available])],
4366 dnl Note this is non-standard. --with-xim does not control whether
4367 dnl XIM support is compiled in, it only affects the runtime default of
4368 dnl use_xim in xterm.c.
4369 if test "${with_xim}" != "no"; then
4370 AC_DEFINE([USE_XIM], [1],
4371 [Define to 1 to default runtime use of XIM to on.])
4376 if test "${HAVE_X11}" = "yes"; then
4379 [[#include <X11/Intrinsic.h>
4380 #include <X11/extensions/Xrender.h>
4382 [[return !XRenderQueryExtension;]])],
4383 [AC_CHECK_LIB([Xrender], [XRenderQueryExtension], [HAVE_XRENDER=yes])])
4384 if test $HAVE_XRENDER = yes; then
4385 XRENDER_LIBS="-lXrender"
4386 AC_SUBST([XRENDER_LIBS])
4387 AC_DEFINE([HAVE_XRENDER], [1], [Define to 1 if XRender is available.])
4392 if test "${HAVE_X11}" = "yes"; then
4393 if test "${with_cairo}" != "no"; then
4394 CAIRO_REQUIRED=1.8.0
4395 CAIRO_MODULE="cairo >= $CAIRO_REQUIRED"
4396 EMACS_CHECK_MODULES([CAIRO], [$CAIRO_MODULE])
4397 if test $HAVE_CAIRO = yes; then
4398 AS_IF([test "x$with_cairo_xcb" = "xyes"], [
4399 CAIRO_XCB_MODULE="cairo-xcb >= $CAIRO_REQUIRED"
4400 EMACS_CHECK_MODULES([CAIRO_XCB], [$CAIRO_XCB_MODULE])
4401 AS_IF([test "x$HAVE_CAIRO_XCB" = "xyes"], [
4402 CAIRO_CFLAGS="$CAIRO_CFLAGS $CAIRO_XCB_CFLAGS"
4403 CAIRO_LIBS="$CAIRO_LIBS $CAIRO_XCB_LIBS"
4404 AC_DEFINE([USE_CAIRO_XCB], [1],
4405 [Define to 1 if cairo XCB surfaces are available.])])])
4406 AC_DEFINE([USE_CAIRO], [1], [Define to 1 if using cairo.])
4407 CFLAGS="$CFLAGS $CAIRO_CFLAGS"
4408 LIBS="$LIBS $CAIRO_LIBS"
4409 AC_SUBST([CAIRO_CFLAGS])
4410 AC_SUBST([CAIRO_LIBS])
4412 AC_MSG_WARN([cairo requested but not found.])
4417 dnl Enable xwidgets if GTK3 and WebKitGTK+ are available.
4418 dnl Enable xwidgets if macOS Cocoa and WebKit framework are available.
4421 if test "$with_xwidgets" != "no"; then
4422 if test "$USE_GTK_TOOLKIT" = "GTK3" && test "$window_system" != "none"; then
4423 WEBKIT_REQUIRED=2.12
4424 WEBKIT_MODULES="webkit2gtk-4.1 >= $WEBKIT_REQUIRED"
4425 EMACS_CHECK_MODULES([WEBKIT], [$WEBKIT_MODULES])
4426 if test "$HAVE_WEBKIT" = "no"; then
4427 WEBKIT_MODULES="webkit2gtk-4.0 >= $WEBKIT_REQUIRED"
4428 EMACS_CHECK_MODULES([WEBKIT], [$WEBKIT_MODULES])
4430 HAVE_XWIDGETS=$HAVE_WEBKIT
4431 XWIDGETS_OBJ="xwidget.o"
4432 if test "$HAVE_X_WINDOWS" = "yes" && test "${with_cairo}" = "no"; then
4433 CAIRO_XLIB_MODULES="cairo >= 1.8.0 cairo-xlib >= 1.8.0"
4434 EMACS_CHECK_MODULES([CAIRO_XLIB], [$CAIRO_XLIB_MODULES])
4435 if test $HAVE_CAIRO_XLIB = "yes"; then
4436 CAIRO_CFLAGS="$CAIRO_XLIB_CFLAGS"
4437 CAIRO_LIBS="$CAIRO_XLIB_LIBS"
4438 AC_SUBST([CAIRO_CFLAGS])
4439 AC_SUBST([CAIRO_LIBS])
4441 AC_MSG_ERROR([xwidgets requested, but a suitable cairo installation wasn't found])
4444 elif test "${NS_IMPL_COCOA}" = "yes"; then
4445 dnl FIXME: Check framework WebKit2
4446 dnl WEBKIT_REQUIRED=M.m.p
4447 WEBKIT_LIBS="-Wl,-framework -Wl,WebKit"
4448 WEBKIT_CFLAGS="-I/System/Library/Frameworks/WebKit.framework/Headers"
4450 HAVE_XWIDGETS=$HAVE_WEBKIT
4451 XWIDGETS_OBJ="xwidget.o"
4452 NS_OBJC_OBJ="$NS_OBJC_OBJ nsxwidget.o"
4453 dnl Update NS_OBJC_OBJ with added nsxwidget.o
4454 AC_SUBST([NS_OBJC_OBJ])
4456 AC_MSG_ERROR([xwidgets requested, it requires GTK3 as X window toolkit or macOS Cocoa as window system.])
4459 test $HAVE_XWIDGETS = yes ||
4460 AC_MSG_ERROR([xwidgets requested but WebKitGTK+ or WebKit framework not found.])
4462 AC_DEFINE([HAVE_XWIDGETS], [1], [Define to 1 if you have xwidgets support.])
4464 AC_SUBST([XWIDGETS_OBJ])
4466 if test "$window_system" = "pgtk"; then
4467 CAIRO_REQUIRED=1.12.0
4468 CAIRO_MODULE="cairo >= $CAIRO_REQUIRED"
4469 EMACS_CHECK_MODULES([CAIRO], [$CAIRO_MODULE])
4470 if test $HAVE_CAIRO = yes; then
4471 AC_DEFINE([USE_CAIRO], [1], [Define to 1 if using cairo.])
4473 AC_MSG_ERROR([cairo required but not found.])
4476 CFLAGS="$CFLAGS $CAIRO_CFLAGS"
4477 LIBS="$LIBS $CAIRO_LIBS"
4478 AC_SUBST([CAIRO_CFLAGS])
4479 AC_SUBST([CAIRO_LIBS])
4482 if test "${HAVE_BE_APP}" = "yes"; then
4483 if test "${with_be_cairo}" != "no"; then
4484 CAIRO_REQUIRED=1.8.0
4485 CAIRO_MODULE="cairo >= $CAIRO_REQUIRED"
4486 EMACS_CHECK_MODULES([CAIRO], [$CAIRO_MODULE])
4487 if test $HAVE_CAIRO = yes; then
4488 AC_DEFINE([USE_BE_CAIRO], [1], [Define to 1 if using cairo on Haiku.])
4489 CFLAGS="$CFLAGS $CAIRO_CFLAGS"
4490 LIBS="$LIBS $CAIRO_LIBS"
4491 AC_SUBST([CAIRO_CFLAGS])
4492 AC_SUBST([CAIRO_LIBS])
4494 AC_MSG_WARN([cairo requested but not found.])
4499 ### Start of font-backend (under any platform) section.
4500 # (nothing here yet -- this is a placeholder)
4501 ### End of font-backend (under any platform) section.
4503 ### Start of font-backend (under X11) section.
4504 if test "${HAVE_X11}" = "yes"; then
4505 if test $HAVE_CAIRO = yes; then
4506 dnl Strict linkers fail with
4507 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
4508 dnl if -lfreetype is not specified.
4509 dnl The following is needed to set FREETYPE_LIBS.
4510 EMACS_CHECK_MODULES([FREETYPE], [freetype2])
4512 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR([cairo requires libfreetype])
4514 EMACS_CHECK_MODULES([FONTCONFIG], [fontconfig >= 2.2.0])
4516 test "$HAVE_FONTCONFIG" = "no" &&
4517 AC_MSG_ERROR([cairo requires libfontconfig])
4518 dnl For the "Does Emacs use" message at the end.
4521 ## Use -lXft if available, unless '--with-xft=no'.
4523 if test "x${with_x}" = "xno"; then
4527 if test "$with_xft" != no; then
4528 EMACS_CHECK_MODULES([FONTCONFIG], [fontconfig >= 2.2.0])
4529 with_xft=$HAVE_FONTCONFIG
4532 if test "x${with_xft}" != "xno"; then
4534 EMACS_CHECK_MODULES([XFT], [xft >= 0.13.0], [], [HAVE_XFT=no])
4535 ## Because xterm.c uses XRenderQueryExtension when XFT is
4536 ## enabled, we also need to link to -lXrender.
4537 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
4538 OLD_CPPFLAGS="$CPPFLAGS"
4539 OLD_CFLAGS="$CFLAGS"
4541 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
4542 CFLAGS="$CFLAGS $XFT_CFLAGS"
4543 LIBS="$XFT_LIBS $LIBS"
4544 AC_CHECK_HEADER([X11/Xft/Xft.h],
4545 [AC_CHECK_LIB([Xft], [XftFontOpen], [HAVE_XFT=yes],
4548 [[#include <X11/X.h>]])
4550 if test "${HAVE_XFT}" = "yes"; then
4551 AC_DEFINE([HAVE_XFT], [1], [Define to 1 if you have the Xft library.])
4552 AC_SUBST([XFT_LIBS])
4553 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
4554 fi # "${HAVE_XFT}" = "yes"
4555 CPPFLAGS=$OLD_CPPFLAGS
4559 # Make sure XFT is disabled if we found XFT but not XRender
4561 fi # "$HAVE_XFT" != no
4562 fi # "x${with_xft}" != "xno"
4564 if test "$HAVE_XFT" != "yes"; then
4565 dnl For the "Does Emacs use" message at the end.
4569 dnl Strict linkers fail with
4570 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
4571 dnl if -lfreetype is not specified.
4572 dnl The following is needed to set FREETYPE_LIBS.
4573 EMACS_CHECK_MODULES([FREETYPE], [freetype2])
4575 test "$HAVE_FREETYPE" = "no" &&
4576 AC_MSG_ERROR([libxft requires libfreetype])
4578 fi # $HAVE_CAIRO != yes
4581 if test "${HAVE_FREETYPE}" = "yes"; then
4582 AC_DEFINE([HAVE_FREETYPE], [1],
4583 [Define to 1 if using the freetype and fontconfig libraries.])
4586 CFLAGS="$CFLAGS $FREETYPE_CFLAGS"
4587 LIBS="$FREETYPE_LIBS $LIBS"
4588 AC_CHECK_FUNCS([FT_Face_GetCharVariantIndex])
4591 if test "${with_libotf}" != "no"; then
4592 EMACS_CHECK_MODULES([LIBOTF], [libotf])
4593 if test "$HAVE_LIBOTF" = "yes"; then
4594 AC_DEFINE([HAVE_LIBOTF], [1], [Define to 1 if using libotf.])
4595 AC_CHECK_LIB([otf], [OTF_get_variation_glyphs],
4596 [HAVE_OTF_GET_VARIATION_GLYPHS=yes],
4597 [HAVE_OTF_GET_VARIATION_GLYPHS=no])
4598 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
4599 AC_DEFINE([HAVE_OTF_GET_VARIATION_GLYPHS], [1],
4600 [Define to 1 if libotf has OTF_get_variation_glyphs.])
4602 if $PKG_CONFIG --atleast-version=0.9.16 libotf; then :; else
4603 AC_DEFINE([HAVE_OTF_KANNADA_BUG], [1],
4604 [Define to 1 if libotf is affected by https://debbugs.gnu.org/28110.])
4608 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
4609 dnl Does the new font backend require it, or can it work without it?
4613 if test "${HAVE_LIBOTF}" = yes; then
4614 if test "${with_m17n_flt}" != "no"; then
4615 EMACS_CHECK_MODULES([M17N_FLT], [m17n-flt])
4616 if test "$HAVE_M17N_FLT" = "yes"; then
4617 AC_DEFINE([HAVE_M17N_FLT], [1], [Define to 1 if using libm17n-flt.])
4621 else # "${HAVE_X11}" != "yes"
4622 if test $window_system = pgtk; then
4623 EMACS_CHECK_MODULES([FONTCONFIG], [fontconfig >= 2.2.0])
4624 EMACS_CHECK_MODULES([FREETYPE], [freetype2])
4625 if test "$HAVE_FONTCONFIG" != yes -o "$HAVE_FREETYPE" != yes; then
4626 AC_MSG_ERROR([fontconfig and freetype is required.])
4629 AC_DEFINE([HAVE_FREETYPE], [1],
4630 [Define to 1 if using the freetype and fontconfig libraries.])
4631 if test "${with_libotf}" != "no"; then
4632 EMACS_CHECK_MODULES([LIBOTF], [libotf])
4633 if test "$HAVE_LIBOTF" = "yes"; then
4634 AC_DEFINE([HAVE_LIBOTF], [1], [Define to 1 if using libotf.])
4635 AC_CHECK_LIB([otf], [OTF_get_variation_glyphs],
4636 [HAVE_OTF_GET_VARIATION_GLYPHS=yes],
4637 [HAVE_OTF_GET_VARIATION_GLYPHS=no])
4638 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
4639 AC_DEFINE([HAVE_OTF_GET_VARIATION_GLYPHS], [1],
4640 [Define to 1 if libotf has OTF_get_variation_glyphs.])
4650 fi # "${HAVE_X11}" != "yes"
4653 ### On MS-Windows we use hb_font_get_nominal_glyph, which appeared
4654 ### in HarfBuzz version 1.2.3
4655 if test "${HAVE_W32}" = "yes"; then
4656 harfbuzz_required_ver=1.2.3
4658 harfbuzz_required_ver=0.9.42
4660 if test "${HAVE_X11}" = "yes" && test "${HAVE_FREETYPE}" = "yes" \
4661 || test "$window_system" = "pgtk" \
4662 || test "${HAVE_W32}" = "yes" \
4663 || test "$REALLY_ANDROID" = "yes"; then
4664 if test "${with_harfbuzz}" != "no"; then
4665 EMACS_CHECK_MODULES([HARFBUZZ], [harfbuzz >= $harfbuzz_required_ver])
4666 AS_IF([test "$HAVE_HARFBUZZ" = "yes"],[
4667 AC_DEFINE([HAVE_HARFBUZZ], [1], [Define to 1 if using HarfBuzz.])
4668 ### mingw32 and Cygwin-w32 don't use -lharfbuzz, since they load
4669 ### the library dynamically.
4670 AS_IF([test "${HAVE_W32}" = "yes"], [HARFBUZZ_LIBS=])
4671 ## Now check for `hb_font_set_var_named_instance'.
4673 CFLAGS="$HARFBUZZ_CFLAGS $CFLAGS"
4674 EMACS_CHECK_LIB([harfbuzz], [hb_font_set_var_named_instance],
4675 [AC_DEFINE([HAVE_HB_FONT_SET_VAR_NAMED_INSTANCE], [1],
4676 [Define to 1 if `hb_font_set_var_named_instance' is present.])],
4677 [], [$HARFBUZZ_LIBS], [#include <hb.h>])
4678 CFLAGS=$OLD_CFLAGS])
4682 ### Start of font-backend (under Haiku) selectionn.
4683 if test "${HAVE_BE_APP}" = "yes"; then
4684 if test $HAVE_CAIRO = "yes"; then
4685 EMACS_CHECK_MODULES([FREETYPE], [freetype2 >= 2.5.0])
4686 test "$HAVE_FREETYPE" = "no" &&
4687 AC_MSG_ERROR([cairo on Haiku requires libfreetype])
4688 EMACS_CHECK_MODULES([FONTCONFIG], [fontconfig >= 2.2.0])
4689 test "$HAVE_FONTCONFIG" = "no" &&
4690 AC_MSG_ERROR([cairo on Haiku requires libfontconfig])
4695 if test "${HAVE_FREETYPE}" = "yes"; then
4696 AC_DEFINE([HAVE_FREETYPE], [1],
4697 [Define to 1 if using the freetype and fontconfig libraries.])
4700 CFLAGS="$CFLAGS $FREETYPE_CFLAGS"
4701 LIBS="$FREETYPE_LIBS $LIBS"
4702 AC_CHECK_FUNCS([FT_Face_GetCharVariantIndex])
4705 if test "${with_libotf}" != "no"; then
4706 EMACS_CHECK_MODULES([LIBOTF], [libotf])
4707 if test "$HAVE_LIBOTF" = "yes"; then
4708 AC_DEFINE([HAVE_LIBOTF], [1], [Define to 1 if using libotf.])
4709 AC_CHECK_LIB([otf], [OTF_get_variation_glyphs],
4710 [HAVE_OTF_GET_VARIATION_GLYPHS=yes],
4711 [HAVE_OTF_GET_VARIATION_GLYPHS=no])
4712 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
4713 AC_DEFINE([HAVE_OTF_GET_VARIATION_GLYPHS], [1],
4714 [Define to 1 if libotf has OTF_get_variation_glyphs.])
4716 if $PKG_CONFIG --atleast-version=0.9.16 libotf; then :; else
4717 AC_DEFINE([HAVE_OTF_KANNADA_BUG], [1],
4718 [Define to 1 if libotf is affected by https://debbugs.gnu.org/28110.])
4722 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
4723 dnl Does the new font backend require it, or can it work without it?
4727 if test "${HAVE_BE_APP}" = "yes" && test "${HAVE_FREETYPE}" = "yes"; then
4728 if test "${with_harfbuzz}" != "no"; then
4729 EMACS_CHECK_MODULES([HARFBUZZ], [harfbuzz >= $harfbuzz_required_ver])
4730 if test "$HAVE_HARFBUZZ" = "yes"; then
4731 AC_DEFINE([HAVE_HARFBUZZ], [1], [Define to 1 if using HarfBuzz.])
4736 ### End of font-backend section.
4738 AC_SUBST([FREETYPE_CFLAGS])
4739 AC_SUBST([FREETYPE_LIBS])
4740 AC_SUBST([FONTCONFIG_CFLAGS])
4741 AC_SUBST([FONTCONFIG_LIBS])
4742 AC_SUBST([HARFBUZZ_CFLAGS])
4743 AC_SUBST([HARFBUZZ_LIBS])
4744 AC_SUBST([LIBOTF_CFLAGS])
4745 AC_SUBST([LIBOTF_LIBS])
4746 AC_SUBST([M17N_FLT_CFLAGS])
4747 AC_SUBST([M17N_FLT_LIBS])
4750 if test "${HAVE_X11}" = "yes"; then
4751 AC_CHECK_HEADER([X11/Xlib-xcb.h],
4752 [AC_CHECK_LIB([xcb], [xcb_translate_coordinates], [HAVE_XCB=yes])])
4753 if test "${HAVE_XCB}" = "yes"; then
4754 AC_CHECK_LIB([X11-xcb], [XGetXCBConnection], [HAVE_X11_XCB=yes])
4755 if test "${HAVE_X11_XCB}" = "yes"; then
4756 AC_DEFINE([USE_XCB], [1],
4757 [Define to 1 if you have the XCB library and X11-XCB library for mixed
4758 X11/XCB programming.])
4759 XCB_LIBS="-lX11-xcb -lxcb"
4763 AC_SUBST([XCB_LIBS])
4765 ### Use -lXpm if available, unless '--with-xpm=no'.
4766 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
4767 ### The Cygwin-w32 build uses <noX/xpm.h> instead of <X11/xpm.h>, so
4768 ### we need to set LDFLAGS accordingly.
4771 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
4772 if test "${with_xpm}" != "no"; then
4773 SAVE_LDFLAGS="$LDFLAGS"
4774 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
4775 AC_CHECK_HEADER([noX/xpm.h],
4776 [AC_CHECK_LIB([Xpm], [XpmReadFileToImage], [HAVE_XPM=yes])])
4777 if test "${HAVE_XPM}" = "yes"; then
4778 AC_CACHE_CHECK([for XpmReturnAllocPixels preprocessor define],
4779 [emacs_cv_cpp_xpm_return_alloc_pixels],
4780 [AC_EGREP_CPP([no_return_alloc_pixels],
4781 [#include "noX/xpm.h"
4782 #ifndef XpmReturnAllocPixels
4783 no_return_alloc_pixels
4785 ], [emacs_cv_cpp_xpm_return_alloc_pixels=no],
4786 [emacs_cv_cpp_xpm_return_alloc_pixels=yes])])
4788 if test "$emacs_cv_cpp_xpm_return_alloc_pixels" = "no"; then
4790 LDFLAGS="$SAVE_LDFLAGS"
4795 if test "${HAVE_XPM}" = "yes"; then
4796 AC_DEFINE([HAVE_XPM], [1],
4797 [Define to 1 if you have the Xpm library (-lXpm).])
4802 if test "${HAVE_X11}" = "yes"; then
4803 dnl Avoid Xpm on AIX unless requested, as it crashes; see Bug#17598.
4804 case $opsys,$with_xpm_set,$with_xpm in
4806 aix4-2,*) with_xpm=no;;
4809 if test "${with_xpm}" != "no"; then
4810 AC_CHECK_HEADER([X11/xpm.h],
4811 [AC_CHECK_LIB([Xpm], [XpmReadFileToPixmap],
4812 [HAVE_XPM=yes], [], [-lX11])])
4813 if test "${HAVE_XPM}" = "yes"; then
4814 AC_CACHE_CHECK([for XpmReturnAllocPixels preprocessor define],
4815 [emacs_cv_cpp_xpm_return_alloc_pixels],
4816 [AC_EGREP_CPP([no_return_alloc_pixels],
4817 [#include "X11/xpm.h"
4818 #ifndef XpmReturnAllocPixels
4819 no_return_alloc_pixels
4821 ], [emacs_cv_cpp_xpm_return_alloc_pixels=no],
4822 [emacs_cv_cpp_xpm_return_alloc_pixels=yes])])
4824 if test "$emacs_cv_cpp_xpm_return_alloc_pixels" = "no"; then
4830 if test "${HAVE_XPM}" = "yes"; then
4831 AC_DEFINE([HAVE_XPM], [1],
4832 [Define to 1 if you have the Xpm library (-lXpm).])
4834 elif test "$opsys,$LUCID_LIBW" = aix4-2,-lXaw; then
4835 dnl AIX -lXaw needs -lXpm linked too; see Bug#17598 Message#152.
4840 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
4841 ### slightly different requirements wrt image libraries (it doesn't
4842 ### use -lXpm because it loads the xpm shared library dynamically at
4844 if test "${opsys}" = "mingw32"; then
4845 if test "${with_xpm}" != "no"; then
4846 AC_CHECK_HEADER([X11/xpm.h], [HAVE_XPM=yes], [HAVE_XPM=no], [
4850 if test "${HAVE_XPM}" = "yes"; then
4851 AC_DEFINE([HAVE_XPM], [1],
4852 [Define to 1 if you have the Xpm library (-lXpm).])
4858 ### Use -ljpeg if available, unless '--with-jpeg=no'.
4862 if test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes" \
4863 || test "${HAVE_NS}" = "yes" || test "${HAVE_BE_APP}" = "yes" \
4864 || test "$window_system" = "pgtk" \
4865 || test "${REALLY_ANDROID}" = "yes"; then
4866 if test "${with_jpeg}" != "no"; then
4867 if test "${REALLY_ANDROID}" = "yes"; then
4868 # Look for libjpeg using the NDK.
4869 ndk_SEARCH_MODULE([libjpeg], [JPEG], [HAVE_JPEG=yes])
4871 if test "$HAVE_JPEG" = "yes"; then
4872 LIBJPEG="$JPEG_LIBS"
4874 AC_DEFINE([HAVE_JPEG], [1],
4875 [Define to 1 if you have the jpeg library (typically -ljpeg).])
4878 AC_CACHE_CHECK([for jpeglib 6b or later],
4881 for emacs_cv_jpeglib in yes -ljpeg no; do
4882 case $emacs_cv_jpeglib in
4885 *) LIBS="$LIBS $emacs_cv_jpeglib";;
4889 [[#undef HAVE_STDLIB_H /* Avoid config.h/jpeglib.h collision. */
4890 #include <stdio.h> /* jpeglib.h needs FILE and size_t. */
4891 #include <jpeglib.h>
4893 char verify[JPEG_LIB_VERSION < 62 ? -1 : 1];
4894 struct jpeg_decompress_struct cinfo;
4897 jpeg_create_decompress (&cinfo);
4898 WARNMS (&cinfo, JWRN_JPEG_EOF);
4899 jpeg_destroy_decompress (&cinfo);
4901 [emacs_link_ok=yes],
4904 test $emacs_link_ok = yes && break
4906 if test "$emacs_cv_jpeglib" != no; then
4908 AC_DEFINE([HAVE_JPEG], [1],
4909 [Define to 1 if you have the jpeg library (typically -ljpeg).])
4910 ### mingw32 doesn't use -ljpeg, since it loads the library
4911 ### dynamically when needed, and doesn't want a run-time
4912 ### dependency on the jpeglib DLL.
4913 test "$emacs_cv_jpeglib" != yes && test "${opsys}" != "mingw32" \
4914 && LIBJPEG=$emacs_cv_jpeglib
4920 AC_SUBST([JPEG_CFLAGS])
4925 if test "${with_lcms2}" != "no"; then
4926 EMACS_CHECK_MODULES([LCMS2], [lcms2])
4928 if test "${HAVE_LCMS2}" = "yes"; then
4929 AC_DEFINE([HAVE_LCMS2], [1],
4930 [Define to 1 if you have the lcms2 library (-llcms2).])
4931 ### mingw32 doesn't use -llcms2, since it loads the library dynamically.
4932 if test "${opsys}" = "mingw32"; then
4936 AC_SUBST([LCMS2_CFLAGS])
4937 AC_SUBST([LCMS2_LIBS])
4941 if test "${with_zlib}" != "no"; then
4943 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
4945 case $ac_cv_search_inflateEnd in
4946 -*) LIBZ=$ac_cv_search_inflateEnd ;;
4949 if test "${HAVE_ZLIB}" = "yes"; then
4950 AC_DEFINE([HAVE_ZLIB], [1],
4951 [Define to 1 if you have the zlib library (-lz).])
4952 ### mingw32 doesn't use -lz, since it loads the library dynamically.
4953 if test "${opsys}" = "mingw32"; then
4959 ### Dynamic library support
4961 cygwin|mingw32) DYNAMIC_LIB_SUFFIX=".dll" ;;
4962 darwin) DYNAMIC_LIB_SUFFIX=".dylib" ;;
4963 *) DYNAMIC_LIB_SUFFIX=".so" ;;
4966 darwin) DYNAMIC_LIB_SECONDARY_SUFFIX='.so' ;;
4967 *) DYNAMIC_LIB_SECONDARY_SUFFIX='' ;;
4969 AC_DEFINE_UNQUOTED(DYNAMIC_LIB_SUFFIX, "$DYNAMIC_LIB_SUFFIX",
4970 [System extension for dynamic libraries])
4971 AC_DEFINE_UNQUOTED(DYNAMIC_LIB_SECONDARY_SUFFIX, "$DYNAMIC_LIB_SECONDARY_SUFFIX",
4972 [Alternative system extension for dynamic libraries.])
4974 AC_SUBST(DYNAMIC_LIB_SUFFIX)
4975 AC_SUBST(DYNAMIC_LIB_SECONDARY_SUFFIX)
4977 ### Dynamic modules support
4981 MODULES_SUFFIX="${DYNAMIC_LIB_SUFFIX}"
4982 MODULES_SECONDARY_SUFFIX="${DYNAMIC_LIB_SECONDARY_SUFFIX}"
4984 # pgtkterm.c uses dlsym
4985 if test $window_system = pgtk; then
4993 AS_IF([test "x$with_modules" != "xno"],
4994 [AS_CASE(["$opsys"],
4998 [cygwin|mingw32|darwin],
5000 # BSD systems have dlopen in libc.
5001 [AC_CHECK_FUNC([dlopen], [HAVE_MODULES=yes])])
5003 AS_IF([test "x$HAVE_MODULES" = "xno"],
5004 [AS_IF([test "$with_modules" = "ifavailable"],
5005 [AC_MSG_WARN([Dynamic modules are not supported on your system])],
5006 [AC_MSG_ERROR([Dynamic modules are not supported on your system])])],
5008 LIBS="$LIBS $LIBMODULES"
5009 AC_CHECK_FUNCS([dladdr dlfunc])
5012 AS_IF([test "x$HAVE_MODULES" = xyes],
5013 [MODULES_OBJ="emacs-module.o"
5015 AC_DEFINE([HAVE_MODULES], [1], [Define to 1 if dynamic modules are enabled])
5016 AC_DEFINE_UNQUOTED([MODULES_SUFFIX], ["$MODULES_SUFFIX"],
5017 [System extension for dynamic libraries])
5018 AS_IF([test -n "$MODULES_SECONDARY_SUFFIX"],
5019 [AC_DEFINE_UNQUOTED([MODULES_SECONDARY_SUFFIX],
5020 ["$MODULES_SECONDARY_SUFFIX"],
5021 [Alternative system extension for dynamic libraries.])])])
5023 AC_SUBST([MODULES_OBJ])
5024 AC_SUBST([LIBMODULES])
5025 AC_SUBST([HAVE_MODULES])
5026 AC_SUBST([MODULES_SUFFIX])
5027 AC_SUBST([MODULES_SECONDARY_SUFFIX])
5029 ARCH_INDEPENDENT_CONFIG_FILES([src/emacs-module.h])
5030 AC_SUBST_FILE([module_env_snippet_25])
5031 AC_SUBST_FILE([module_env_snippet_26])
5032 AC_SUBST_FILE([module_env_snippet_27])
5033 AC_SUBST_FILE([module_env_snippet_28])
5034 AC_SUBST_FILE([module_env_snippet_29])
5035 AC_SUBST_FILE([module_env_snippet_30])
5036 module_env_snippet_25="$srcdir/src/module-env-25.h"
5037 module_env_snippet_26="$srcdir/src/module-env-26.h"
5038 module_env_snippet_27="$srcdir/src/module-env-27.h"
5039 module_env_snippet_28="$srcdir/src/module-env-28.h"
5040 module_env_snippet_29="$srcdir/src/module-env-29.h"
5041 module_env_snippet_30="$srcdir/src/module-env-30.h"
5042 emacs_major_version=`AS_ECHO([$PACKAGE_VERSION]) | sed 's/[[.]].*//'`
5043 AC_SUBST([emacs_major_version])
5045 ### Emacs Lisp native compiler support
5047 AC_DEFUN([libgccjit_smoke_test], [
5049 [[#include <libgccjit.h>
5053 main (int argc, char **argv)
5055 gcc_jit_context *ctxt;
5056 gcc_jit_result *result;
5057 ctxt = gcc_jit_context_acquire ();
5060 gcc_jit_type *int_type =
5061 gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_INT);
5062 gcc_jit_function *func =
5063 gcc_jit_context_new_function (ctxt, NULL,
5064 GCC_JIT_FUNCTION_EXPORTED,
5065 int_type, "foo", 0, NULL, 0);
5066 gcc_jit_block *block = gcc_jit_function_new_block (func, "foo");
5067 gcc_jit_block_end_with_return (
5070 gcc_jit_context_new_rvalue_from_int (ctxt, int_type, 1));
5071 result = gcc_jit_context_compile (ctxt);
5074 typedef int (*fn_type) (void);
5076 (fn_type)gcc_jit_result_get_code (result, "foo");
5081 gcc_jit_context_release (ctxt);
5082 gcc_jit_result_release (result);
5086 AC_DEFUN([libgccjit_not_found_err], [
5087 AC_MSG_ERROR([ELisp native compiler was requested, but libgccjit was not found.
5088 Please try installing libgccjit or a similar package.
5089 If you are sure you want Emacs be compiled without ELisp native compiler,
5090 pass the --without-native-compilation option to configure.])])
5092 AC_DEFUN([libgccjit_dev_not_found_err], [
5093 AC_MSG_ERROR([ELisp native compiler was requested, but libgccjit header files were
5095 Please try installing libgccjit-dev or a similar package.
5096 If you are sure you want Emacs be compiled without ELisp native compiler,
5097 pass the --without-native-compilation option to configure.])])
5099 AC_DEFUN([libgccjit_broken_err], [
5100 AC_MSG_ERROR([The installed libgccjit failed to compile and run a test program using
5101 the libgccjit library; see config.log for the details of the failure.
5102 The test program can be found here:
5103 <https://gcc.gnu.org/onlinedocs/jit/intro/tutorial01.html>.
5104 You can try compiling it yourself to investigate the issues.
5105 Please report the issue to your distribution if libgccjit was installed
5107 You can find the instructions on how to compile and install libgccjit from
5108 source on this site:
5109 <https://gcc.gnu.org/wiki/JIT>.])])
5114 if test "$canonical" = i686-pc-cygwin; then
5115 if test "${with_cygwin32_native_compilation}" = yes; then
5116 with_native_compilation=yes
5117 elif test "${with_native_compilation}" != no; then
5118 AC_MSG_ERROR([Native compilation is not supported on 32-bit Cygwin.
5119 If you really want to try it anyway, use the configure option
5120 '--with-cygwin32-native-compilation'.])
5124 AC_DEFUN([libgccjit_not_found], [
5125 AC_MSG_WARN([Elisp native compiler can't be enabled as libgccjit was not
5127 Please try installing libgccjit or a similar package if you want to have it
5130 with_native_compilation=no
5133 AC_DEFUN([libgccjit_dev_not_found], [
5134 AC_MSG_WARN([Elisp native compiler can't be enabled as libgccjit header files
5136 Please try installing libgccjit-dev or a similar package if you want to have it
5139 with_native_compilation=no
5142 AC_DEFUN([libgccjit_broken], [
5143 AC_MSG_WARN([Elisp native compiler can't be enabled as the installed libgccjit
5144 failed to compile and run a test program using the libgccjit library; see
5145 config.log for the details of the failure.
5146 The test program can be found here:
5147 <https://gcc.gnu.org/onlinedocs/jit/intro/tutorial01.html>.
5148 You can try compiling it yourself to investigate the issues.
5149 Please report the issue to your distribution if libgccjit was installed
5151 You can find the instructions on how to compile and install libgccjit from
5152 source on this site:
5153 <https://gcc.gnu.org/wiki/JIT>.])
5155 with_native_compilation=no])
5157 if test "$with_features" = "no" \
5158 && test "${with_native_compilation}" = "default"; then
5159 with_native_compilation=no
5162 if test "${with_native_compilation}" = "default"; then
5163 # Check if libgccjit is available.
5164 AC_CHECK_LIB([gccjit], [gcc_jit_context_acquire],
5165 [], [libgccjit_not_found])
5166 AC_CHECK_HEADERS([libgccjit.h], [], [libgccjit_dev_not_found])
5167 if test "${with_native_compilation}" != "no"; then
5168 # Check if libgccjit really works.
5169 AC_RUN_IFELSE([libgccjit_smoke_test], [], [libgccjit_broken])
5171 if test "$with_unexec" = yes; then
5172 with_native_compilation=no
5176 if test "${with_native_compilation}" != "no"; then
5177 if test "$with_unexec" = yes; then
5178 AC_MSG_ERROR(['--with-native-compilation' is not compatible with unexec])
5180 if test "${HAVE_ZLIB}" = no; then
5181 AC_MSG_ERROR(['--with-native-compilation' requires zlib])
5187 if test "${opsys}" = "darwin"; then
5188 # Ensure libgccjit installed by Homebrew or macports can be found.
5189 if test -n "$BREW"; then
5190 if test -n "`$BREW --prefix --installed libgccjit 2>/dev/null`"; then
5191 MAC_CFLAGS="-I$(dirname $($BREW ls -v libgccjit | \
5193 MAC_LIBS="-L$(dirname $($BREW ls -v libgccjit \
5194 | grep -m1 -E 'libgccjit\.(so|dylib)$'))"
5198 if test -n "$HAVE_MACPORTS"; then
5199 # Determine which gcc version has been installed (gcc11, for
5200 # instance). Use the latest version, if more than one is
5201 # available. (We filter out the gcc4 packages, because they
5202 # don't support jit, and they have names like "gcc49" that
5203 # sort later than "gcc11".)
5204 PORT_PACKAGE=`port installed active | grep '^ *gcc@<:@0-9@:>@* ' | \
5205 awk '{ print $1; }' | grep -v 'gcc4@<:@0-9@:>@' | \
5206 sort -V | tail -n 1`
5207 if test -n "$PORT_PACKAGE"; then
5208 emacs_val=`port contents $PORT_PACKAGE | grep libgccjit.h`
5209 emacs_val=`dirname $emacs_val`
5210 MAC_CFLAGS="-I$emacs_val"
5211 emacs_val=`port contents $PORT_PACKAGE | grep libgccjit.dylib`
5212 emacs_val=`dirname $emacs_val`
5213 MAC_LIBS="-L$emacs_val"
5217 if test -n "$MAC_CFLAGS" && test -n "$MAC_LIBS"; then
5218 CFLAGS="$CFLAGS ${MAC_CFLAGS}"
5219 LIBS="$LIBS ${MAC_LIBS}"
5223 # In the default case we already checked
5224 if test "${with_native_compilation}" != "default"; then
5225 # Check if libgccjit is available.
5226 AC_CHECK_LIB([gccjit], [gcc_jit_context_acquire],
5227 [], [libgccjit_not_found_err])
5228 AC_CHECK_HEADERS([libgccjit.h], [], [libgccjit_dev_not_found_err])
5229 # Check if libgccjit really works.
5230 AC_RUN_IFELSE([libgccjit_smoke_test], [], [libgccjit_broken_err])
5232 HAVE_NATIVE_COMP=yes
5234 # mingw32 loads the library dynamically.
5236 # Neither NetBSD, OpenBSD nor Haiku have libdl, with all dynamic
5237 # linker functions placed within libc.
5238 netbsd|openbsd|haiku)
5239 LIBGCCJIT_LIBS="-lgccjit" ;;
5241 LIBGCCJIT_CFLAGS="${MAC_CFLAGS}"
5242 LIBGCCJIT_LIBS="${MAC_LIBS} -lgccjit -ldl";;
5244 LIBGCCJIT_LIBS="-lgccjit -ldl" ;;
5247 AC_DEFINE([HAVE_NATIVE_COMP], [1],
5248 [Define to 1 if native compiler is available.])
5253 AC_DEFINE_UNQUOTED([NATIVE_ELISP_SUFFIX], [".eln"],
5254 [System extension for native compiled elisp])
5255 AC_SUBST([HAVE_NATIVE_COMP])
5256 AC_SUBST([LIBGCCJIT_CFLAGS])
5257 AC_SUBST([LIBGCCJIT_LIBS])
5260 if test "${NEED_DYNLIB}" = yes; then
5261 DYNLIB_OBJ="dynlib.o"
5263 AC_SUBST([DYNLIB_OBJ])
5265 ### Use -lpng if available, unless '--with-png=no'.
5269 if test "${with_png}" != no; then
5270 # mingw32 loads the library dynamically.
5271 if test "$opsys" = mingw32; then
5272 AC_CHECK_HEADER([png.h], [HAVE_PNG=yes])
5273 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes" \
5274 || test "${HAVE_NS}" = "yes" || test "${HAVE_BE_APP}" = "yes" \
5275 || test "$window_system" = "pgtk" \
5276 || test "${REALLY_ANDROID}" = "yes"; then
5277 EMACS_CHECK_MODULES([PNG], [libpng >= 1.0.0])
5278 if test $HAVE_PNG = yes; then
5281 # Test old way in case pkg-config doesn't have it (older machines).
5282 AC_MSG_CHECKING([for libpng not configured by pkg-config])
5284 png_cflags=`(libpng-config --cflags) 2>&AS_MESSAGE_LOG_FD` &&
5285 png_ldflags=`(libpng-config --ldflags) 2>&AS_MESSAGE_LOG_FD` || {
5286 # libpng-config does not work; configure by hand.
5287 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
5288 # in /usr/include/libpng.
5289 if test -r /usr/include/libpng/png.h &&
5290 test ! -r /usr/include/png.h; then
5291 png_cflags=-I/usr/include/libpng
5299 CFLAGS="$CFLAGS $png_cflags"
5300 LIBS="$png_ldflags -lz -lm $LIBS"
5302 [AC_LANG_PROGRAM([[#include <png.h>]],
5303 [[return !png_get_channels (0, 0);]])],
5305 PNG_CFLAGS=`AS_ECHO(["$png_cflags"]) | sed -e "$edit_cflags"`
5306 LIBPNG=$png_ldflags])
5309 AC_MSG_RESULT([$HAVE_PNG])
5312 # $LIBPNG requires explicit -lz in some cases.
5313 # We don't know what those cases are, exactly, so play it safe and
5314 # append -lz to any nonempty $LIBPNG, unless we're already using LIBZ.
5315 case " $LIBPNG ",$LIBZ in
5316 *' -lz '*, | *' ',?*) ;;
5317 *) LIBPNG="$LIBPNG -lz" ;;
5321 if test $HAVE_PNG = yes; then
5322 AC_DEFINE([HAVE_PNG], [1], [Define to 1 if you have the png library.])
5325 CFLAGS="$CFLAGS $PNG_CFLAGS"
5326 AC_CHECK_DECL([png_longjmp],
5328 [AC_DEFINE([PNG_DEPSTRUCT], [],
5329 [Define to empty to suppress deprecation warnings when building
5330 with --enable-gcc-warnings and with libpng versions before 1.5,
5331 which lack png_longjmp.])],
5337 AC_SUBST([PNG_CFLAGS])
5339 ### Use -ltiff if available, unless '--with-tiff=no'.
5340 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
5344 if test "${opsys}" = "mingw32"; then
5345 if test "${with_tiff}" != "no"; then
5346 AC_CHECK_HEADER([tiffio.h], [HAVE_TIFF=yes], [HAVE_TIFF=no])
5348 if test "${HAVE_TIFF}" = "yes"; then
5349 AC_DEFINE([HAVE_TIFF], [1],
5350 [Define to 1 if you have the tiff library (-ltiff).])
5352 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes" \
5353 || test "${HAVE_NS}" = "yes" || test "${HAVE_BE_APP}" = "yes" \
5354 || test "$window_system" = "pgtk" \
5355 || test "${REALLY_ANDROID}" = "yes"; then
5356 if test "${with_tiff}" != "no"; then
5357 if test "${REALLY_ANDROID}" != "yes"; then
5358 AC_CHECK_HEADER([tiffio.h],
5360 # At least one tiff package requires the jpeg library.
5361 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
5362 AC_CHECK_LIB([tiff], [TIFFGetVersion], [HAVE_TIFF=yes], [],
5365 ndk_SEARCH_MODULE([libtiff], [TIFF], [HAVE_TIFF=yes])
5367 if test "$HAVE_TIFF" = "yes"; then
5368 LIBTIFF="$TIFF_LIBS"
5373 if test "${HAVE_TIFF}" = "yes"; then
5374 AC_DEFINE([HAVE_TIFF], [1],
5375 [Define to 1 if you have the tiff library (-ltiff).])
5377 if test "$REALLY_ANDROID" != "yes"; then
5378 dnl FIXME -lz -lm, as per libpng?
5384 AC_SUBST([TIFF_CFLAGS])
5386 ### Use -lgif or -lungif if available, unless '--with-gif=no'.
5387 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
5391 if test "${opsys}" = "mingw32"; then
5392 if test "${with_gif}" != "no"; then
5393 AC_CHECK_HEADER([gif_lib.h], [HAVE_GIF=yes], [HAVE_GIF=no])
5395 if test "${HAVE_GIF}" = "yes"; then
5396 AC_DEFINE([HAVE_GIF], [1],
5397 [Define to 1 if you have a gif (or ungif) library.])
5399 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
5400 || test "${HAVE_W32}" = "yes" || test "${HAVE_NS}" = "yes" \
5401 || test "${HAVE_BE_APP}" = "yes" || test "$window_system" = "pgtk" \
5402 || test "${REALLY_ANDROID}" = "yes" \
5403 && test "${with_gif}" != "no"; then
5404 AC_CHECK_HEADER([gif_lib.h],
5405 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
5406 # Earlier versions can crash Emacs, but version 5.0 removes EGifPutExtensionLast.
5407 [AC_CHECK_LIB([gif], [GifMakeMapObject], [HAVE_GIF=yes],
5408 [AC_CHECK_LIB([gif], [EGifPutExtensionLast],
5410 [HAVE_GIF=maybe])])])
5412 if test "$HAVE_GIF" = yes; then
5414 elif test "$HAVE_GIF" = maybe; then
5415 # If gif_lib.h but no libgif, try libungif.
5416 AC_CHECK_LIB([ungif], [EGifPutExtensionLast],
5419 test "$HAVE_GIF" = yes && LIBGIF=-lungif
5422 # Finally, try ndk-build on Android.
5423 if test "$REALLY_ANDROID" = "yes"; then
5424 ndk_SEARCH_MODULE([libgif], [GIF], [HAVE_GIF=yes],
5426 test "$HAVE_GIF" = yes && LIBGIF="$GIF_LIBS"
5429 if test "${HAVE_GIF}" = "yes"; then
5430 AC_DEFINE([HAVE_GIF], [1],
5431 [Define to 1 if you have a gif (or ungif) library.])
5435 AC_SUBST([GIF_CFLAGS])
5437 dnl Check for required libraries.
5440 if test "${HAVE_X11}" = "yes"; then
5441 case $with_xpm,$HAVE_XPM in
5442 no,* | ifavailable,* | *,yes) ;;
5444 WITH_IFAVAILABLE="--with-xpm=ifavailable";;
5446 case $with_jpeg,$HAVE_JPEG in
5447 no,* | ifavailable,* | *,yes) ;;
5448 *) MISSING="$MISSING libjpeg"
5449 WITH_IFAVAILABLE="$WITH_IFAVAILABLE --with-jpeg=ifavailable";;
5451 case $with_png,$HAVE_PNG in
5452 no,* | ifavailable,* | *,yes) ;;
5453 *) MISSING="$MISSING libpng"
5454 WITH_IFAVAILABLE="$WITH_IFAVAILABLE --with-png=ifavailable";;
5456 case $with_gif,$HAVE_GIF in
5457 no,* | ifavailable,* | *,yes) ;;
5458 *) MISSING="$MISSING libgif/libungif"
5459 WITH_IFAVAILABLE="$WITH_IFAVAILABLE --with-gif=ifavailable";;
5461 case $with_tiff,$HAVE_TIFF in
5462 no,* | ifavailable,* | *,yes) ;;
5463 *) MISSING="$MISSING libtiff"
5464 WITH_IFAVAILABLE="$WITH_IFAVAILABLE --with-tiff=ifavailable";;
5467 case $with_gnutls,$HAVE_GNUTLS in
5468 no,* | ifavailable,* | *,yes) ;;
5469 *) MISSING="$MISSING gnutls"
5470 WITH_IFAVAILABLE="$WITH_IFAVAILABLE --with-gnutls=ifavailable";;
5472 case $with_tree_sitter,$HAVE_TREE_SITTER in
5473 no,* | ifavailable,* | *,yes) ;;
5474 *) MISSING="$MISSING tree-sitter"
5475 WITH_IFAVAILABLE="$WITH_IFAVAILABLE --with-tree-sitter=ifavailable";;
5478 if test "X${MISSING}" != X; then
5479 # If we have a missing library, and we don't have pkg-config installed,
5480 # the missing pkg-config may be the reason. Give the user a hint.
5481 if test "X${PKG_CONFIG}" = X; then
5482 AC_MSG_WARN([Unable to locate a usable pkg-config])
5484 AC_MSG_ERROR([The following required libraries were not found:
5486 Maybe some development libraries/packages are missing?
5487 To build anyway, give:
5489 as options to configure.])
5492 ### Use -lgpm if available, unless '--with-gpm=no'.
5495 if test "${with_gpm}" != "no"; then
5496 AC_CHECK_HEADER([gpm.h],
5497 [AC_CHECK_LIB([gpm], [Gpm_Open], [HAVE_GPM=yes])])
5499 if test "${HAVE_GPM}" = "yes"; then
5500 AC_DEFINE([HAVE_GPM], [1],
5501 [Define to 1 if you have the gpm library (-lgpm).])
5507 dnl Check for malloc/malloc.h on darwin
5508 AC_CHECK_HEADERS_ONCE([malloc/malloc.h])
5511 ### Use NeXTstep API to implement GUI.
5512 if test "${HAVE_NS}" = "yes"; then
5513 AC_DEFINE([HAVE_NS], [1],
5514 [Define to 1 if you are using the NeXTstep API,
5515 either GNUstep or Cocoa on macOS.])
5516 if test "${NS_IMPL_COCOA}" = "yes"; then
5517 AC_DEFINE([NS_IMPL_COCOA], [1],
5518 [Define to 1 if you are using NS windowing under macOS.])
5520 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
5521 AC_DEFINE([NS_IMPL_GNUSTEP], [1],
5522 [Define to 1 if you are using NS windowing under GNUstep.])
5523 if test $NS_GNUSTEP_CONFIG != yes; then
5524 # See also .m.o rule in src/Makefile.in. */
5525 # FIXME: are all these flags really needed? Document here why. */
5526 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
5527 ## Extra CFLAGS applied to src/*.m files.
5528 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
5534 ### Use session management (-lSM -lICE) if available
5537 if test "${HAVE_X11}" = "yes"; then
5538 AC_CHECK_HEADER([X11/SM/SMlib.h],
5539 [AC_CHECK_LIB([SM], [SmcOpenConnection], [HAVE_X_SM=yes], [], [-lICE])])
5541 if test "${HAVE_X_SM}" = "yes"; then
5542 AC_DEFINE([HAVE_X_SM], [1],
5543 [Define to 1 if you have the SM library (-lSM).])
5549 ### Use XRandr (-lXrandr) if available
5551 if test "${HAVE_X11}" = "yes"; then
5552 XRANDR_REQUIRED=1.2.2
5553 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
5554 EMACS_CHECK_MODULES([XRANDR], [$XRANDR_MODULES])
5555 if test $HAVE_XRANDR = no; then
5556 # Test old way in case pkg-config doesn't have it (older machines).
5557 # Include Xrender.h by hand to work around bug in older Xrandr.h
5558 # (e.g. RHEL5) and silence (harmless) configure warning (bug#18465).
5559 AC_CHECK_HEADER([X11/extensions/Xrandr.h],
5560 [AC_CHECK_LIB([Xrandr], [XRRGetScreenResources], [HAVE_XRANDR=yes])],
5561 [], [AC_INCLUDES_DEFAULT
5562 #include <X11/extensions/Xrender.h>])
5563 if test $HAVE_XRANDR = yes; then
5564 XRANDR_LIBS=-lXrandr
5567 if test $HAVE_XRANDR = yes; then
5568 AC_DEFINE([HAVE_XRANDR], [1],
5569 [Define to 1 if you have the XRandr extension.])
5572 AC_SUBST([XRANDR_CFLAGS])
5573 AC_SUBST([XRANDR_LIBS])
5575 ### Use Xinerama (-lXinerama) if available
5577 if test "${HAVE_X11}" = "yes"; then
5578 XINERAMA_REQUIRED=1.0.2
5579 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
5580 EMACS_CHECK_MODULES([XINERAMA], [$XINERAMA_MODULES])
5581 if test $HAVE_XINERAMA = no; then
5582 # Test old way in case pkg-config doesn't have it (older machines).
5583 AC_CHECK_HEADER([X11/extensions/Xinerama.h],
5584 [AC_CHECK_LIB([Xinerama], [XineramaQueryExtension],
5585 [HAVE_XINERAMA=yes])])
5586 if test $HAVE_XINERAMA = yes; then
5587 XINERAMA_LIBS=-lXinerama
5590 if test $HAVE_XINERAMA = yes; then
5591 AC_DEFINE([HAVE_XINERAMA], [1],
5592 [Define to 1 if you have the Xinerama extension.])
5595 AC_SUBST([XINERAMA_CFLAGS])
5596 AC_SUBST([XINERAMA_LIBS])
5598 ### Use Xfixes (-lXfixes) if available
5600 if test "${HAVE_X11}" = "yes"; then
5601 XFIXES_REQUIRED=1.0.0
5602 XFIXES_MODULES="xfixes >= $XFIXES_REQUIRED"
5603 EMACS_CHECK_MODULES([XFIXES], [$XFIXES_MODULES])
5604 if test $HAVE_XFIXES = no; then
5605 # Test old way in case pkg-config doesn't have it (older machines).
5606 AC_CHECK_HEADER([X11/extensions/Xfixes.h],
5607 [AC_CHECK_LIB([Xfixes], [XFixesHideCursor], [HAVE_XFIXES=yes])])
5608 if test $HAVE_XFIXES = yes; then
5609 XFIXES_LIBS=-lXfixes
5612 if test $HAVE_XFIXES = yes; then
5613 AC_DEFINE([HAVE_XFIXES], [1],
5614 [Define to 1 if you have the Xfixes extension.])
5617 AC_SUBST([XFIXES_CFLAGS])
5618 AC_SUBST([XFIXES_LIBS])
5620 ## Use XInput 2.0 if available
5622 if test "${HAVE_X11}" = "yes" && test "${with_xinput2}" != "no"; then
5623 EMACS_CHECK_MODULES([XINPUT], [xi])
5624 if test $HAVE_XINPUT = yes; then
5625 # Now check for XInput2.h
5626 AC_CHECK_HEADER([X11/extensions/XInput2.h],
5627 [AC_CHECK_LIB([Xi], [XIGrabButton], [HAVE_XINPUT2=yes])])
5629 if test $HAVE_XINPUT2 = yes; then
5630 AC_DEFINE([HAVE_XINPUT2], [1],
5631 [Define to 1 if the X Input Extension version 2.0 or later is present.])
5632 if test "$USE_GTK_TOOLKIT" = "GTK2"; then
5633 AC_MSG_WARN([You are building Emacs with GTK+ 2 and the X Input Extension version 2.
5634 This might lead to problems if your version of GTK+ is not built with support for XInput 2.])
5637 # Now check for some members (which used in conjunction with
5638 # protocol definitions) can be used to determine the version of
5640 AC_CHECK_MEMBERS([XIScrollClassInfo.type, XITouchClassInfo.type,
5641 XIBarrierReleasePointerInfo.deviceid, XIGestureClassInfo.type],
5642 [], [], [#include <X11/extensions/XInput2.h>])
5645 AC_SUBST([XINPUT_CFLAGS])
5646 AC_SUBST([XINPUT_LIBS])
5651 if test "${HAVE_X11}" = "yes"; then
5652 AC_CHECK_HEADER([X11/extensions/sync.h],
5653 [AC_CHECK_LIB([Xext], [XSyncQueryExtension], [HAVE_XSYNC=yes])],
5654 [], [#include <X11/Xlib.h>])
5656 if test "${HAVE_XSYNC}" = "yes"; then
5657 AC_DEFINE([HAVE_XSYNC], [1],
5658 [Define to 1 if the X Synchronization Extension is available.])
5661 LIBS="-lXext $LIBS" # Set this temporarily for AC_CHECK_FUNC
5662 AC_CHECK_FUNCS([XSyncTriggerFence]) # Check for version 3.1
5666 AC_SUBST([XSYNC_LIBS])
5667 AC_SUBST([XSYNC_CFLAGS])
5669 ### Use Xdbe (-lXdbe) if available
5671 if test "${HAVE_X11}" = "yes"; then
5672 if test "${with_xdbe}" != "no"; then
5673 AC_CHECK_HEADER([X11/extensions/Xdbe.h],
5674 [AC_CHECK_LIB([Xext], [XdbeAllocateBackBufferName], [HAVE_XDBE=yes])],
5676 [#include <X11/Xlib.h>
5679 if test $HAVE_XDBE = yes; then
5682 if test $HAVE_XDBE = yes; then
5683 AC_DEFINE([HAVE_XDBE], [1], [Define to 1 if you have the Xdbe extension.])
5686 AC_SUBST([XDBE_CFLAGS])
5687 AC_SUBST([XDBE_LIBS])
5689 ### Use the Nonrectangular Window Shape extension if available.
5692 if test "${HAVE_X11}" = "yes"; then
5693 AC_CHECK_HEADER([X11/extensions/shape.h],
5694 [AC_CHECK_LIB([Xext], [XShapeQueryVersion], [HAVE_XSHAPE=yes])],
5696 [#include <X11/extensions/shape.h>
5698 if test $HAVE_XSHAPE = yes; then
5700 AC_CHECK_HEADER([xcb/shape.h],
5701 [AC_CHECK_LIB([xcb-shape], [xcb_shape_combine], [HAVE_XCB_SHAPE=yes])],
5703 [#include <xcb/shape.h>])
5705 if test $HAVE_XCB_SHAPE = yes && test "$XCB_LIBS" != ""; then
5706 XSHAPE_LIBS="$XSHAPE_LIBS -lxcb-shape"
5707 AC_DEFINE([HAVE_XCB_SHAPE], [1],
5708 [Define to 1 if XCB supports the
5709 Nonrectangular Window Shape extension.])
5712 if test $HAVE_XSHAPE = yes; then
5713 AC_DEFINE([HAVE_XSHAPE], [1],
5714 [Define to 1 if you have the Nonrectangular Window Shape extension.])
5717 AC_SUBST([XSHAPE_CFLAGS])
5718 AC_SUBST([XSHAPE_LIBS])
5720 ### Use Xcomposite (-lXcomposite) if available
5722 if test "${HAVE_X11}" = "yes"; then
5723 AC_CHECK_HEADER([X11/extensions/Xcomposite.h],
5724 [AC_CHECK_LIB([Xcomposite], [XCompositeRedirectWindow],
5725 [HAVE_XCOMPOSITE=yes])],
5727 [#include <X11/extensions/Xcomposite.h>
5729 if test $HAVE_XCOMPOSITE = yes; then
5730 XCOMPOSITE_LIBS=-lXcomposite
5732 if test $HAVE_XCOMPOSITE = yes; then
5733 AC_DEFINE([HAVE_XCOMPOSITE], [1],
5734 [Define to 1 if you have the XCOMPOSITE extension.])
5737 AC_SUBST([XCOMPOSITE_CFLAGS])
5738 AC_SUBST([XCOMPOSITE_LIBS])
5740 ### Use libxml (-lxml2) if available
5741 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
5743 if test "${with_xml2}" != "no"; then
5744 ### I'm not sure what the version number should be, so I just guessed.
5745 EMACS_CHECK_MODULES([LIBXML2], [libxml-2.0 > 2.6.17])
5746 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
5747 if test "${HAVE_LIBXML2}" != "yes" && test "$opsys" = "darwin"; then
5748 SAVE_CPPFLAGS="$CPPFLAGS"
5749 if test -z "$xcsdkdir" -a -n "$XCRUN" -a ! -d /usr/include; then
5750 dnl /usr/include is not found. Try Xcode SDK dir if it is sane.
5751 xcsdkdir=`$XCRUN --show-sdk-path 2>/dev/null`
5753 *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
5757 CPPFLAGS="$CPPFLAGS -isystem${xcsdkdir}/usr/include/libxml2"
5758 AC_CHECK_HEADER([libxml/HTMLparser.h],
5759 [AC_CHECK_DECL([HTML_PARSE_RECOVER], [HAVE_LIBXML2=yes], [],
5760 [#include <libxml/HTMLparser.h>])])
5761 CPPFLAGS="$SAVE_CPPFLAGS"
5762 if test "${HAVE_LIBXML2}" = "yes"; then
5763 LIBXML2_CFLAGS="-isystem${xcsdkdir}/usr/include/libxml2"
5764 LIBXML2_LIBS="-lxml2"
5767 if test "${HAVE_LIBXML2}" = "yes"; then
5768 if test "${opsys}" != "mingw32"; then
5770 CFLAGS="$CFLAGS $LIBXML2_CFLAGS"
5771 EMACS_CHECK_LIB([xml2], [htmlReadMemory],
5774 [$LIBXML2_LIBS], [#include <libxml/HTMLparser.h>])
5775 CFLAGS="$SAVE_CFLAGS"
5779 if test "${HAVE_LIBXML2}" = "yes"; then
5780 AC_DEFINE([HAVE_LIBXML2], [1],
5781 [Define to 1 if you have the libxml library (-lxml2).])
5788 AC_SUBST([LIBXML2_LIBS])
5789 AC_SUBST([LIBXML2_CFLAGS])
5793 if test ! "$with_mailutils"; then
5794 # Check for mail-locking functions in a "mail" library. Probably this should
5795 # have the same check as for liblockfile below.
5796 AC_CHECK_LIB([mail], [maillock], [have_mail=yes], [have_mail=no])
5797 if test $have_mail = yes; then
5799 AC_DEFINE([HAVE_LIBMAIL], [1],
5800 [Define to 1 if you have the 'mail' library (-lmail).])
5803 LIBS="$LIBS_MAIL $LIBS"
5804 AC_CHECK_FUNCS([touchlock])
5807 dnl Debian, at least:
5808 AC_CHECK_LIB([lockfile], [maillock], [have_lockfile=yes], [have_lockfile=no])
5809 if test $have_lockfile = yes; then
5810 LIBS_MAIL=-llockfile
5811 AC_DEFINE([HAVE_LIBLOCKFILE], [1],
5812 [Define to 1 if you have the 'lockfile' library (-llockfile).])
5814 # If we have the shared liblockfile, assume we must use it for mail
5815 # locking (e.g. Debian). If we couldn't link against liblockfile
5816 # (no liblockfile.a installed), ensure that we don't need to.
5817 dnl This works for files generally, not just executables.
5818 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
5819 AC_CHECK_PROG([liblockfile], [liblockfile.so], [yes], [no],
5820 [/usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH])
5821 if test "$ac_cv_prog_liblockfile" = yes; then
5822 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
5823 This probably means that movemail could lose mail.
5824 There may be a 'development' package to install containing liblockfile.])
5827 AC_CHECK_HEADERS([maillock.h])
5829 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
5830 ## interlock access to the mail spool. The alternative is a lock file named
5831 ## /usr/spool/mail/$USER.lock.
5834 aix4-2) mail_lock="lockf" ;;
5836 gnu|freebsd|dragonfly|netbsd|openbsd|darwin) mail_lock="flock" ;;
5838 ## On GNU/Linux systems, both methods are used by various mail programs.
5839 ## I assume most people are using newer mailers that have heard of flock.
5840 ## Change this if you need to.
5841 ## Debian contains a patch which says: "On Debian/GNU/Linux systems,
5842 ## configure gets the right answers, and that means *NOT* using flock.
5843 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
5844 ## for details." and then uses '#ifdef DEBIAN'. Unfortunately the
5845 ## Debian maintainer hasn't provided a clean fix for Emacs.
5846 ## movemail.c will use 'maillock' when MAILDIR, HAVE_LIBMAIL and
5847 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
5848 ## correct logic. -- fx
5849 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
5850 ## liblockfile is a Free Software replacement for libmail, used on
5851 ## Debian systems and elsewhere. -rfr.
5854 if test $have_mail = yes || test $have_lockfile = yes; then
5855 test $ac_cv_header_maillock_h = yes && mail_lock=no
5859 mail_lock="none-needed" ;;
5863 flock) AC_DEFINE([MAIL_USE_FLOCK], [1],
5864 [Define if the mailer uses flock to interlock the mail spool.]);;
5866 lockf) AC_DEFINE([MAIL_USE_LOCKF], [1],
5867 [Define if the mailer uses lockf to interlock the mail spool.]);;
5871 *) BLESSMAIL_TARGET="need-blessmail" ;;
5874 AC_SUBST([BLESSMAIL_TARGET])
5875 AC_SUBST([LIBS_MAIL])
5879 [linux/seccomp.h linux/filter.h],
5881 [SECCOMP_SET_MODE_FILTER, SECCOMP_FILTER_FLAG_TSYNC],
5882 [HAVE_SECCOMP=yes], [],
5884 #include <linux/seccomp.h>
5886 AC_SUBST([HAVE_SECCOMP])
5888 EMACS_CHECK_MODULES([LIBSECCOMP], [libseccomp >= 2.5.2])
5889 AC_SUBST([HAVE_LIBSECCOMP])
5890 AC_SUBST([LIBSECCOMP_LIBS])
5891 AC_SUBST([LIBSECCOMP_CFLAGS])
5893 AC_CHECK_SIZEOF([long])
5894 SIZEOF_LONG="$ac_cv_sizeof_long"
5895 AC_SUBST([SIZEOF_LONG])
5898 LIBS="$LIB_PTHREAD $LIB_MATH $LIBS"
5899 AC_CHECK_FUNCS([accept4 fchdir gethostname \
5900 getrusage get_current_dir_name \
5901 lrand48 random rint tcdrain trunc \
5902 select getpagesize setlocale newlocale \
5903 getrlimit setrlimit shutdown \
5904 pthread_sigmask strsignal setitimer \
5905 sendto recvfrom getsockname getifaddrs freeifaddrs \
5907 endpwent getgrent endgrent \
5908 cfmakeraw cfsetspeed __executable_start log2 pthread_setname_np \
5909 pthread_set_name_np])
5911 # getpwent is not present in older versions of Android. (bug#65319)
5912 gl_CHECK_FUNCS_ANDROID([getpwent], [[#include <pwd.h>]])
5914 # renameat2 is not present in older versions of Android.
5915 gl_CHECK_FUNCS_ANDROID([renameat2], [[#include <stdio.h>]])
5917 if test "$ac_cv_func_cfmakeraw" != "yes"; then
5918 # On some systems (Android), cfmakeraw is inline, so AC_CHECK_FUNCS
5919 # cannot find it. Check if some code including termios.h and using
5921 AC_CACHE_CHECK([whether cfmakeraw is inline],
5922 [emacs_cv_func_cfmakeraw_inline],
5923 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
5924 [[#include <termios.h>]],
5926 [emacs_cv_func_cfmakeraw_inline=yes],
5927 [emacs_cv_func_cfmakeraw_inline=no])])
5929 if test "$emacs_cv_func_cfmakeraw_inline" = "yes"; then
5930 # Define HAVE_CFMAKERAW again.
5931 AC_DEFINE([HAVE_CFMAKERAW], [1])
5935 if test "$ac_cv_func_cfsetspeed" != "yes"; then
5936 AC_CACHE_CHECK([whether cfsetspeed is inline],
5937 [emacs_cv_func_cfsetspeed_inline],
5938 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
5939 [[#include <termios.h>]],
5941 [emacs_cv_func_cfsetspeed_inline=yes],
5942 [emacs_cv_func_cfsetspeed_inline=no])])
5944 if test "$emacs_cv_func_cfsetspeed_inline" = "yes"; then
5945 # Define HAVE_CFSETSPEED again.
5946 AC_DEFINE([HAVE_CFSETSPEED], [1])
5952 if test "$ac_cv_func_pthread_setname_np" = "yes"; then
5954 [whether pthread_setname_np takes a single argument],
5955 [emacs_cv_pthread_setname_np_1arg],
5958 [[#include <pthread.h>]],
5959 [[pthread_setname_np ("a");]])],
5960 [emacs_cv_pthread_setname_np_1arg=yes],
5961 [emacs_cv_pthread_setname_np_1arg=no])])
5962 if test "$emacs_cv_pthread_setname_np_1arg" = "yes"; then
5964 [HAVE_PTHREAD_SETNAME_NP_1ARG], [1],
5965 [Define to 1 if pthread_setname_np takes a single argument.])
5968 [whether pthread_setname_np takes three arguments],
5969 [emacs_cv_pthread_setname_np_3arg],
5972 [[#include <pthread.h>]],
5973 [[pthread_setname_np (0, "%s", "a");]])],
5974 [emacs_cv_pthread_setname_np_3arg=yes],
5975 [emacs_cv_pthread_setname_np_3arg=no])])
5976 if test "$emacs_cv_pthread_setname_np_3arg" = "yes"; then
5978 [HAVE_PTHREAD_SETNAME_NP_3ARG], [1],
5979 [Define to 1 if pthread_setname_np takes three arguments.])
5984 dnl No need to check for posix_memalign if aligned_alloc works.
5985 AC_CHECK_FUNCS([aligned_alloc posix_memalign], [break])
5986 AC_CHECK_DECLS([aligned_alloc], [], [], [[#include <stdlib.h>]])
5988 case $with_unexec,$canonical in
5990 AC_CHECK_DECL([__ELF__], [],
5991 [AC_MSG_ERROR([Non-ELF systems are not supported on this platform.])]);;
5994 if test "$with_unexec" = yes && test "$opsys" = "haiku"; then
5995 dnl A serious attempt was actually made to port unexec to Haiku.
5996 dnl Something in libstdc++ seems to prevent it from working.
5997 AC_MSG_ERROR([Haiku is not supported by the legacy unexec dumper.
5998 Please use the portable dumper instead.])
6001 # Dump loading. Android lacks posix_madvise.
6002 AC_CHECK_FUNCS([posix_madvise madvise])
6004 dnl Cannot use AC_CHECK_FUNCS
6005 AC_CACHE_CHECK([for __builtin_frame_address],
6006 [emacs_cv_func___builtin_frame_address],
6007 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_frame_address (0);])],
6008 [emacs_cv_func___builtin_frame_address=yes],
6009 [emacs_cv_func___builtin_frame_address=no])])
6010 if test $emacs_cv_func___builtin_frame_address = yes; then
6011 AC_DEFINE([HAVE___BUILTIN_FRAME_ADDRESS], [1],
6012 [Define to 1 if you have the '__builtin_frame_address' function.])
6014 AC_CACHE_CHECK([for __builtin_unwind_init],
6015 [emacs_cv_func___builtin_unwind_init],
6016 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
6017 [emacs_cv_func___builtin_unwind_init=yes],
6018 [emacs_cv_func___builtin_unwind_init=no])])
6019 if test $emacs_cv_func___builtin_unwind_init = yes; then
6020 AC_DEFINE([HAVE___BUILTIN_UNWIND_INIT], [1],
6021 [Define to 1 if you have the '__builtin_unwind_init' function.])
6024 AC_CHECK_HEADERS_ONCE([sys/un.h])
6029 AC_CHECK_FUNCS([grantpt])
6031 # PTY-related GNU extensions.
6032 AC_CHECK_FUNCS([getpt posix_openpt])
6034 dnl Run a test program that contains a call to tputs, a call that is
6035 dnl never executed. This tests whether a pre-'main' dynamic linker
6036 dnl works with the library. It's too much trouble to actually call
6037 dnl tputs in the test program, due to portability hassles. When
6038 dnl cross-compiling, assume the test program will run if it links.
6039 AC_DEFUN([tputs_link_source], [
6041 [[extern void tputs (const char *, int, int (*)(int));
6042 int main (int argc, char **argv)
6045 tputs (argv[0], 0, 0);
6049 # Check this now, so that we will NOT find the above functions in ncurses.
6050 # That is because we have not set up to link ncurses in lib-src.
6051 # It's better to believe a function is not available
6052 # than to expect to find it in ncurses.
6053 # Also we need tputs and friends to be able to build at all.
6054 AC_CACHE_CHECK([for library containing tputs], [emacs_cv_tputs_lib],
6055 [if test "${opsys}" = "mingw32" || test x"$REALLY_ANDROID" = "xyes"; then
6056 emacs_cv_tputs_lib='none required'
6058 # curses precedes termcap because of AIX (Bug#9736#35) and OpenIndiana.
6059 tputs_libraries='tinfo ncurses terminfo curses termcap tinfow ncursesw'
6060 for tputs_library in '' $tputs_libraries; do
6062 if test -z "$tputs_library"; then
6063 emacs_cv_tputs_lib='none required'
6065 emacs_cv_tputs_lib=-l$tputs_library
6066 LIBS="$emacs_cv_tputs_lib $LIBS"
6068 AC_RUN_IFELSE([tputs_link_source], [], [emacs_cv_tputs_lib=no],
6069 [AC_LINK_IFELSE([tputs_link_source], [], [emacs_cv_tputs_lib=no])])
6071 if test "X$emacs_cv_tputs_lib" != Xno; then
6076 AS_CASE(["$emacs_cv_tputs_lib"],
6077 [no], [AC_MSG_ERROR([The required function 'tputs' was not found in any library.
6078 The following libraries were tried (in order):
6079 libtinfo, libncurses, libterminfo, libcurses, libtermcap
6080 Please try installing whichever of these libraries is most appropriate
6081 for your system, together with its header files.
6082 For example, a libncurses-dev(el) or similar package.])],
6083 [-l*], [LIBS_TERMCAP=$emacs_cv_tputs_lib],
6084 [*], [LIBS_TERMCAP=])
6086 ## Use termcap instead of terminfo?
6087 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
6089 ## FIXME? In the cases below where we unconditionally set
6090 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
6091 ## if that was found above to have tputs.
6092 ## Should we use the gnu* logic everywhere?
6093 case "$opsys$REALLY_ANDROID" in
6094 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
6095 ## The ncurses library has been moved out of the System framework in
6096 ## Mac OS X 10.2. So if configure detects it, set the command-line
6097 ## option to use it.
6098 darwin) LIBS_TERMCAP="-lncurses" ;;
6100 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
6103 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
6104 AC_CACHE_VAL([emacs_cv_freebsd_terminfo],
6105 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
6106 [[#if __FreeBSD_version < 400000
6109 ]])], [emacs_cv_freebsd_terminfo=yes],
6110 [emacs_cv_freebsd_terminfo=no])])
6112 AC_MSG_RESULT([$emacs_cv_freebsd_terminfo])
6114 if test $emacs_cv_freebsd_terminfo = yes; then
6115 LIBS_TERMCAP="-lncurses"
6118 LIBS_TERMCAP="-ltermcap"
6122 # The case condition is a concatenation of both $opsys and
6123 # $REALLY_ANDROID. Only disable termcap if building a GUI program.
6125 mingw32 | androidyes)
6131 # NetBSD versions prior to 6.0 lack native terminfo, but have a
6132 # tputs() built on top of termcap in these libraries. Use native
6133 # termcap instead in this case. NetBSD >= 6.0 has native terminfo
6134 # implementation in -lterminfo.
6135 if test "x$LIBS_TERMCAP" = "x-ltermcap" -o "x$LIBS_TERMCAP" = "x-lcurses"; then
6137 LIBS_TERMCAP="-ltermcap"
6141 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
6143 ## hpux: Make sure we get select from libc rather than from libcurses
6144 ## because libcurses on HPUX 10.10 has a broken version of select.
6145 ## We used to use -lc -lcurses, but this may be cleaner.
6146 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
6147 # set that way, now it uses the default). Isn't this a contradiction?
6148 hpux*) LIBS_TERMCAP="-ltermcap" ;;
6152 TERMCAP_OBJ=tparam.o
6153 if test $TERMINFO = yes; then
6154 AC_DEFINE([TERMINFO], [1],
6155 [Define to 1 if you use terminfo instead of termcap.])
6156 TERMCAP_OBJ=terminfo.o
6157 AC_CACHE_CHECK([whether $LIBS_TERMCAP library defines BC],
6158 [emacs_cv_terminfo_defines_BC],
6160 LIBS="$LIBS $LIBS_TERMCAP"
6161 AC_LINK_IFELSE([AC_LANG_PROGRAM([[extern char *BC;]], [[return !*BC;]])],
6162 [emacs_cv_terminfo_defines_BC=yes],
6163 [emacs_cv_terminfo_defines_BC=no])
6165 if test "$emacs_cv_terminfo_defines_BC" = yes; then
6166 AC_DEFINE([TERMINFO_DEFINES_BC], [1], [Define to 1 if the
6167 terminfo library defines the variables BC, PC, and UP.])
6170 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
6171 AC_DEFINE([USE_NCURSES], [1], [Define to 1 if you use ncurses.])
6173 AC_SUBST([LIBS_TERMCAP])
6174 AC_SUBST([TERMCAP_OBJ])
6176 # GNU/Linux-specific timer functions.
6177 AC_CACHE_CHECK([for timerfd interface], [emacs_cv_have_timerfd],
6179 [AC_LANG_PROGRAM([[#include <sys/timerfd.h>
6181 [[timerfd_create (CLOCK_REALTIME,
6182 TFD_CLOEXEC | TFD_NONBLOCK);
6183 timerfd_settime (0, TFD_TIMER_ABSTIME, 0, 0);]])],
6184 [emacs_cv_have_timerfd=yes],
6185 [emacs_cv_have_timerfd=no])])
6186 if test "$emacs_cv_have_timerfd" = yes; then
6187 AC_DEFINE([HAVE_TIMERFD], [1],
6188 [Define to 1 if timerfd functions are supported as in GNU/Linux.])
6191 # Alternate stack for signal handlers.
6192 AC_CACHE_CHECK([whether signals can be handled on alternate stack],
6193 [emacs_cv_alternate_stack],
6195 [AC_LANG_PROGRAM([[#include <signal.h>
6199 struct sigaction sa;
6200 ss.ss_sp = malloc (SIGSTKSZ);
6201 ss.ss_size = SIGSTKSZ;
6202 sa.sa_flags = SA_SIGINFO | SA_ONSTACK;
6203 sigaltstack (&ss, 0);
6204 sigaction (SIGSEGV, &sa, 0);]])],
6205 [emacs_cv_alternate_stack=yes],
6206 [emacs_cv_alternate_stack=no])])
6208 # Do we need the Hesiod library to provide the support routines?
6209 dnl FIXME? Should we be skipping this on Darwin too?
6212 if test "$with_hesiod" != no ; then
6213 # Don't set $LIBS here -- see comments above. FIXME which comments?
6215 AC_CHECK_FUNC([res_send], [], [AC_CHECK_FUNC([__res_send], [],
6216 [AC_CHECK_LIB([resolv], [res_send], [resolv=yes],
6217 [AC_CHECK_LIB([resolv], [__res_send], [resolv=yes])])])])
6218 if test "$resolv" = yes ; then
6224 AC_CHECK_FUNC([hes_getmailhost], [],
6225 [AC_CHECK_LIB([hesiod], [hes_getmailhost],
6226 [hesiod=yes], [:], [$RESOLVLIB])])
6228 if test x"$hesiod" = xyes; then
6230 LIBRESOLV=$RESOLVLIB
6233 AC_SUBST([LIBHESIOD])
6234 AC_SUBST([LIBRESOLV])
6236 # These tell us which Kerberos-related libraries to use.
6243 if test "${with_kerberos}" != no; then
6245 AC_CHECK_LIB([com_err], [com_err], [have_com_err=yes], [have_com_err=no])
6246 if test $have_com_err = yes; then
6247 COM_ERRLIB=-lcom_err
6248 LIBS="$COM_ERRLIB $LIBS"
6250 AC_CHECK_LIB([crypto], [mit_des_cbc_encrypt],
6253 if test $have_crypto = yes; then
6255 LIBS="$CRYPTOLIB $LIBS"
6257 AC_CHECK_LIB([k5crypto], [mit_des_cbc_encrypt],
6258 [have_k5crypto=yes],
6260 if test $have_k5crypto = yes; then
6261 CRYPTOLIB=-lk5crypto
6262 LIBS="$CRYPTOLIB $LIBS"
6264 AC_CHECK_LIB([krb5], [krb5_init_context], [have_krb5=yes], [have_krb5=no])
6265 if test $have_krb5=yes; then
6267 LIBS="$KRB5LIB $LIBS"
6269 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
6270 if test "${with_kerberos5}" = no; then
6271 AC_CHECK_LIB([des425], [des_cbc_encrypt],
6274 if test $have_des425 = yes; then
6276 LIBS="$DESLIB $LIBS"
6278 AC_CHECK_LIB([des], [des_cbc_encrypt], [have_des=yes], [have_des=no])
6279 if test $have_des = yes; then
6281 LIBS="$DESLIB $LIBS"
6284 AC_CHECK_LIB([krb4], [krb_get_cred], [have_krb4=yes], [have_krb4=no])
6285 if test $have_krb4 = yes; then
6287 LIBS="$KRB4LIB $LIBS"
6289 AC_CHECK_LIB([krb], [krb_get_cred], [have_krb=yes], [have_krb=no])
6290 if test $have_krb = yes; then
6292 LIBS="$KRB4LIB $LIBS"
6297 if test "${with_kerberos5}" != no; then
6298 AC_CHECK_HEADERS([krb5.h],
6299 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text], [], [],
6300 [#include <krb5.h>])])
6302 AC_CHECK_HEADERS([krb.h], [],
6303 [AC_CHECK_HEADERS([kerberosIV/krb.h], [],
6304 [AC_CHECK_HEADERS([kerberos/krb.h])])])
6306 AC_CHECK_HEADERS([com_err.h])
6310 AC_SUBST([COM_ERRLIB])
6311 AC_SUBST([CRYPTOLIB])
6316 AC_CHECK_HEADERS([valgrind/valgrind.h])
6318 AC_CHECK_MEMBERS([struct unipair.unicode], [], [], [[#include <linux/kd.h>]])
6320 AC_CHECK_FUNCS_ONCE([__lsan_ignore_object])
6324 dnl AC_CHECK_FUNCS_ONCE wouldn’t be right for snprintf, which needs
6325 dnl the current CFLAGS etc.
6326 AC_CHECK_FUNCS([snprintf open_memstream])
6328 dnl posix_spawn. The chdir and setsid functionality is relatively
6329 dnl recent, so we check for it specifically.
6330 AC_CHECK_HEADERS([spawn.h])
6331 AC_SUBST([HAVE_SPAWN_H])
6332 AC_CHECK_FUNCS([posix_spawn \
6333 posix_spawn_file_actions_addchdir \
6334 posix_spawn_file_actions_addchdir_np \
6335 posix_spawnattr_setflags])
6336 AC_SUBST([HAVE_POSIX_SPAWN])
6337 AC_SUBST([HAVE_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR])
6338 AC_SUBST([HAVE_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR_NP])
6339 AC_SUBST([HAVE_POSIX_SPAWNATTR_SETFLAGS])
6340 AC_CHECK_DECLS([POSIX_SPAWN_SETSID], [], [], [[
6343 AC_SUBST([HAVE_DECL_POSIX_SPAWN_SETSID])
6345 dnl Check for glib. This differs from other library checks in that
6346 dnl Emacs need not link to glib unless some other library is already
6347 dnl linking to glib. Although glib provides no facilities that Emacs
6348 dnl needs for its own purposes, when glib is present Emacs needs to
6349 dnl use primitives like g_main_context_query to avoid clashing with
6350 dnl glib at a low level.
6352 dnl Check this late, since it depends on $GTK_CFLAGS etc.
6354 AC_CACHE_CHECK([whether GLib is linked in], [emacs_cv_links_glib],
6355 [OLDCFLAGS="$CFLAGS"
6357 CFLAGS="$CFLAGS $GTK_CFLAGS $RSVG_CFLAGS $DBUS_CFLAGS $SETTINGS_CFLAGS"
6358 LIBS="$LIBS $GTK_LIBS $RSVG_LIBS $DBUS_LIBS $SETTINGS_LIBS"
6359 CFLAGS="$CFLAGS $NOTIFY_CFLAGS $CAIRO_CFLAGS"
6360 LIBS="$LIBS $NOTIFY_LIBS $CAIRO_LIBS"
6361 AC_LINK_IFELSE([AC_LANG_PROGRAM(
6364 [[g_print ("Hello world");]])],
6365 [emacs_cv_links_glib=yes],
6366 [emacs_cv_links_glib=no])
6369 if test "${emacs_cv_links_glib}" = "yes"; then
6370 AC_DEFINE([HAVE_GLIB], [1], [Define to 1 if GLib is linked in.])
6371 if test "$HAVE_NS" = no ; then
6375 AC_SUBST([XGSELOBJ])
6377 AC_DEFUN([EMACS_PAPER_WIDTH],
6378 [AC_REQUIRE([AM_LANGINFO_CODESET])
6379 AS_IF([test "$am_cv_langinfo_codeset" = yes],
6380 [AC_CACHE_CHECK([for nl_langinfo and _NL_PAPER_WIDTH],
6381 [emacs_cv_langinfo__nl_paper_width],
6382 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
6383 [[char *cs = nl_langinfo (_NL_PAPER_WIDTH);]])],
6384 [emacs_cv_langinfo__nl_paper_width=yes],
6385 [emacs_cv_langinfo__nl_paper_width=no])
6387 AS_IF([test "$emacs_cv_langinfo__nl_paper_width" = yes],
6388 [AC_DEFINE([HAVE_LANGINFO__NL_PAPER_WIDTH], [1],
6389 [Define if you have <langinfo.h>
6390 and nl_langinfo (_NL_PAPER_WIDTH).])])])])
6395 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
6396 dnl how the tty code is related to POSIX and/or other versions of termios.
6397 dnl The following looks like a useful start.
6399 dnl AC_SYS_POSIX_TERMIOS
6400 dnl if test $ac_cv_sys_posix_termios = yes; then
6401 dnl AC_DEFINE([HAVE_TERMIOS], [1],
6402 dnl [Define to 1 if you have POSIX-style
6403 dnl functions and macros for terminal control.])
6404 dnl AC_DEFINE([HAVE_TCATTR], [1],
6405 dnl [Define to 1 if you have tcgetattr and tcsetattr.])
6408 dnl Turned on June 1996 supposing nobody will mind it.
6409 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
6410 if test "${opsys}" != "mingw32"; then
6411 AC_DEFINE([AMPERSAND_FULL_NAME], [1], [Define to use the convention that &
6412 in the full name stands for the login id.])
6415 dnl Everybody supports this, except MS.
6416 dnl Seems like the kind of thing we should be testing for, though.
6417 ## Note: PTYs are broken on darwin <6. Use at your own risk.
6418 if test "${opsys}" != "mingw32"; then
6419 AC_DEFINE([HAVE_PTYS], [1], [Define if the system supports pty devices.])
6422 dnl Everybody supports this, except MS-DOS.
6423 dnl Seems like the kind of thing we should be testing for, though.
6424 AC_DEFINE([HAVE_SOCKETS], [1], [Define if the system supports
6425 4.2-compatible sockets.])
6427 AH_TEMPLATE([INTERNAL_TERMINAL],
6428 [This is substituted when $TERM is "internal".])
6430 AH_TEMPLATE([NULL_DEVICE], [Name of the file to open to get
6431 a null file, or a data sink.])
6432 if test "${opsys}" = "mingw32"; then
6433 AC_DEFINE([NULL_DEVICE], ["NUL:"])
6435 AC_DEFINE([NULL_DEVICE], ["/dev/null"])
6438 if test "${opsys}" = "mingw32"; then
6443 AC_DEFINE_UNQUOTED([SEPCHAR], ['$SEPCHAR'],
6444 [Character that separates PATH elements.])
6445 dnl This is for MinGW, and is used in test/Makefile.in.
6446 dnl The MSYS Bash has heuristics for replacing ':' with ';' when it
6447 dnl decides that a command-line argument to be passed to a MinGW program
6448 dnl is a PATH-style list of directories. But that heuristics plays it
6449 dnl safe, and only does the replacement when it is _absolutely_ sure it
6450 dnl sees a colon-separated list of file names; e.g. ":." is left alone,
6451 dnl which breaks in-tree builds. So we do this manually instead.
6452 dnl Note that we cannot rely on PATH_SEPARATOR, as that one will always
6453 dnl be computed as ':' in MSYS Bash.
6456 dnl Everybody supports this, except MS-DOS.
6457 AC_DEFINE([subprocesses], [1], [Define to enable asynchronous subprocesses.])
6459 AC_DEFINE([USER_FULL_NAME], [pw->pw_gecos], [How to get a user's full name.])
6462 AC_DEFINE([DIRECTORY_SEP], ['/'],
6463 [Character that separates directories in a file name.])
6465 if test "${opsys}" = "mingw32"; then
6466 AC_DEFINE([IS_DEVICE_SEP(_c_)], [((_c_) == ':')],
6467 [Returns true if character is a device separator.])
6469 AC_DEFINE([IS_DIRECTORY_SEP(_c_)], [((_c_) == '/' || (_c_) == '\\')],
6470 [Returns true if character is a directory separator.])
6472 AC_DEFINE([IS_ANY_SEP(_c_)],
6473 [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP (_c_))],
6474 [Returns true if character is any form of separator.])
6476 AC_DEFINE([IS_DEVICE_SEP(_c_)], 0,
6477 [Returns true if character is a device separator.])
6479 AC_DEFINE([IS_DIRECTORY_SEP(_c_)], [((_c_) == DIRECTORY_SEP)],
6480 [Returns true if character is a directory separator.])
6482 AC_DEFINE([IS_ANY_SEP(_c_)], [(IS_DIRECTORY_SEP (_c_))],
6483 [Returns true if character is any form of separator.])
6486 if test "$USE_X_TOOLKIT" != "none"; then
6490 dnl Assar Westerlund <assar@sics.se> says this is necessary
6491 dnl for HP-UX 10.20, and that it works for HP-UX 0 as well.
6495 if test "$have_editres" != no && test ! -z "$LIBXMU"; then
6497 dnl See libXmu.a check above.
6498 if test x$HAVE_X11XTR6 = xyes; then
6499 LIBS="-lXt -lSM -lICE $LIBXMU"
6501 OTHERLIBS="-lXt -$LIBXMU"
6503 AC_LINK_IFELSE([AC_LANG_PROGRAM(
6504 [[#include <X11/Intrinsic.h>
6505 #include <X11/Xmu/Editres.h>]],
6506 [[_XEditResCheckMessages (0, 0, 0, 0);]])],
6507 [AC_DEFINE([X_TOOLKIT_EDITRES], [1],
6508 [Define to 1 if we should use XEditRes.])])
6514 solaris | unixware )
6515 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
6516 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
6517 dnl need the constant to dimension an array. So wire in the appropriate
6519 AC_DEFINE([NSIG_MINIMUM], [32], [Minimum value of NSIG.])
6523 emacs_broken_SIGIO=no
6526 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
6527 hpux* | nacl | solaris | unixware )
6528 emacs_broken_SIGIO=yes
6532 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
6533 dnl the way this system works, libc functions that return malloced
6534 dnl memory use the libc malloc implementation. Calling xfree or
6535 dnl xrealloc on the results of such functions results in a crash.
6537 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
6538 dnl but that does not currently work on this system.
6540 dnl It is possible to completely override the malloc implementation on
6541 dnl AIX, but that involves putting the malloc functions in a shared
6542 dnl library and setting the MALLOCTYPE environment variable to point to
6543 dnl that shared library.
6545 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
6546 dnl to avoid a crash just use the Emacs implementation for that function.
6548 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
6549 dnl of this file, so that we do not check for get_current_dir_name
6550 dnl on AIX. But that might be fragile if something else ends
6551 dnl up testing for get_current_dir_name as a dependency.
6552 AC_DEFINE([BROKEN_GET_CURRENT_DIR_NAME], [1], [Define if
6553 get_current_dir_name should not be used.])
6557 dnl Circumvent a bug in FreeBSD. In the following sequence of
6558 dnl writes/reads on a PTY, read(2) returns bogus data:
6560 dnl write(2) 1022 bytes
6561 dnl write(2) 954 bytes, get EAGAIN
6562 dnl read(2) 1024 bytes in process_read_output
6563 dnl read(2) 11 bytes in process_read_output
6565 dnl That is, read(2) returns more bytes than have ever been written
6566 dnl successfully. The 1033 bytes read are the 1022 bytes written
6567 dnl successfully after processing (for example with CRs added if the
6568 dnl terminal is set up that way which it is here). The same bytes will
6569 dnl be seen again in a later read(2), without the CRs.
6570 AC_DEFINE([BROKEN_PTY_READ_AFTER_EAGAIN], [1], [Define on FreeBSD to
6571 work around an issue when reading from a PTY.])
6576 gnu-* | android | solaris | cygwin )
6577 dnl FIXME Can't we test if this exists (eg /proc/$$)?
6578 AC_DEFINE([HAVE_PROCFS], [1], [Define if you have the /proc filesystem.])
6583 darwin | dragonfly | freebsd | netbsd | openbsd )
6584 AC_DEFINE([DONT_REOPEN_PTY], [1], [Define if process.c does not need to
6585 close a pty to make it a controlling terminal (it is already a
6586 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
6590 dnl FIXME Surely we can test for this rather than hard-code it.
6592 netbsd | openbsd) sound_device="/dev/audio" ;;
6593 *) sound_device="/dev/dsp" ;;
6597 AC_DEFINE_UNQUOTED([DEFAULT_SOUND_DEVICE], ["$sound_device"],
6598 [Name of the default sound device.])
6601 dnl Emacs can read input using SIGIO and buffering characters itself,
6602 dnl or using CBREAK mode and making C-g cause SIGINT.
6603 dnl The choice is controlled by the variable interrupt_input.
6605 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
6607 dnl Emacs uses the presence of the USABLE_SIGIO macro
6608 dnl to indicate whether or not signal-driven I/O is possible. It uses
6609 dnl INTERRUPT_INPUT to decide whether to use it by default.
6611 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
6612 dnl CBREAK mode has two disadvantages
6613 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
6614 dnl I hear that in system V this problem does not exist.
6615 dnl 2) Control-G causes output to be discarded.
6616 dnl I do not know whether this can be fixed in system V.
6618 dnl Another method of doing input is planned but not implemented.
6619 dnl It would have Emacs fork off a separate process
6620 dnl to read the input and send it to the true Emacs process
6623 darwin | gnu-linux | gnu-kfreebsd)
6624 AC_DEFINE([INTERRUPT_INPUT], [1], [Define to read input using SIGIO.])
6629 dnl If the system's imake configuration file defines 'NeedWidePrototypes'
6630 dnl as 'NO', we must define NARROWPROTO manually. Such a define is
6631 dnl generated in the Makefile generated by 'xmkmf'. If we don't define
6632 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
6633 dnl taking float or double parameters.
6635 cygwin|gnu|gnu-linux|gnu-kfreebsd|freebsd|netbsd|openbsd)
6636 AC_DEFINE([NARROWPROTO], [1], [Define if system's imake configuration
6637 file defines 'NeedWidePrototypes' as 'NO'.])
6642 dnl Used in process.c, this must be a loop, even if it only runs once.
6643 AH_TEMPLATE([PTY_ITERATION], [How to iterate over PTYs.])
6644 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
6645 dnl trying suffixes 0-16.
6646 AH_TEMPLATE([FIRST_PTY_LETTER], [Letter to use in finding device name of
6647 first PTY, if PTYs are supported.])
6648 AH_TEMPLATE([PTY_OPEN], [How to open a PTY, if non-standard.])
6649 AH_TEMPLATE([PTY_NAME_SPRINTF], [How to get the device name of the control
6650 end of a PTY, if non-standard.])
6651 AH_TEMPLATE([PTY_TTY_NAME_SPRINTF], [How to get device name of the tty
6652 end of a PTY, if non-standard.])
6656 AC_DEFINE([PTY_ITERATION], [int c; for (c = 0; !c ; c++)])
6657 dnl You allocate a pty by opening /dev/ptc to get the master side.
6658 dnl To get the name of the slave side, you just ttyname() the master side.
6659 AC_DEFINE([PTY_NAME_SPRINTF], [strcpy (pty_name, "/dev/ptc");])
6660 AC_DEFINE([PTY_TTY_NAME_SPRINTF], [strcpy (pty_name, ttyname (fd));])
6664 AC_DEFINE([PTY_ITERATION], [int i; for (i = 0; i < 1; i++)])
6665 dnl multi-line AC_DEFINEs are hard. :(
6666 AC_DEFINE([PTY_OPEN],
6667 [ 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)])
6668 AC_DEFINE([PTY_NAME_SPRINTF], [])
6669 AC_DEFINE([PTY_TTY_NAME_SPRINTF], [])
6673 AC_DEFINE([FIRST_PTY_LETTER], ['p'])
6677 AC_DEFINE([PTY_ITERATION], [int i; for (i = 0; i < 1; ++i)])
6678 dnl grantpt may be defined in libc but not declared. The same
6679 dnl goes for posix_openpt. When that is the case, it means that
6680 dnl grantpt or posix_openpt cannot actually be used.
6681 AC_CHECK_DECLS([grantpt, posix_openpt])
6682 AS_IF([test "x$ac_cv_have_decl_grantpt" = xyes],
6683 [AC_DEFINE([PTY_TTY_NAME_SPRINTF],
6684 [{ 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); }])],
6685 [AC_DEFINE([PTY_TTY_NAME_SPRINTF],
6686 [{ char *ptyname = 0; sigset_t blocked; sigemptyset (&blocked); sigaddset (&blocked, SIGCHLD); pthread_sigmask (SIG_BLOCK, &blocked, 0); if (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); }])])
6687 AS_IF([test "x$ac_cv_have_decl_posix_openpt" = xyes],
6688 [AC_DEFINE([PTY_OPEN],
6689 [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (false)])
6690 AC_DEFINE([PTY_NAME_SPRINTF], [])],
6691 [AC_DEFINE([PTY_NAME_SPRINTF], [])
6692 AC_DEFINE([PTY_OPEN], [fd = getpt ()])])
6695 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | openbsd | netbsd | darwin | nacl )
6697 if test "x$ac_cv_func_grantpt" = xyes; then
6698 AC_DEFINE([UNIX98_PTYS], [1], [Define if the system has Unix98 PTYs.])
6699 AC_DEFINE([PTY_ITERATION], [int i; for (i = 0; i < 1; i++)])
6700 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
6701 dnl to prevent sigchld_handler from intercepting the child's death.
6702 AC_DEFINE([PTY_TTY_NAME_SPRINTF],
6703 [{ 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); }])
6704 dnl if HAVE_POSIX_OPENPT
6705 if test "x$ac_cv_func_posix_openpt" = xyes; then
6706 AC_DEFINE([PTY_OPEN],
6707 [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (false)])
6708 AC_DEFINE([PTY_NAME_SPRINTF], [])
6710 elif test "x$ac_cv_func_getpt" = xyes; then
6711 AC_DEFINE([PTY_OPEN], [fd = getpt ()])
6712 AC_DEFINE([PTY_NAME_SPRINTF], [])
6714 AC_DEFINE([PTY_NAME_SPRINTF], [strcpy (pty_name, "/dev/ptmx");])
6717 AC_DEFINE([FIRST_PTY_LETTER], ['p'])
6722 AC_DEFINE([FIRST_PTY_LETTER], ['p'])
6723 AC_DEFINE([PTY_NAME_SPRINTF],
6724 [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
6725 AC_DEFINE([PTY_TTY_NAME_SPRINTF],
6726 [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
6730 dnl On SysVr4, grantpt(3) forks a subprocess, so do not use
6731 dnl O_CLOEXEC when opening the pty, and keep the SIGCHLD handler
6732 dnl from intercepting that death. If any child but grantpt's should die
6733 dnl within, it should be caught after sigrelse(2).
6734 AC_DEFINE([PTY_OPEN], [fd = open (pty_name, O_RDWR | O_NONBLOCK)])
6735 AC_DEFINE([PTY_TTY_NAME_SPRINTF],
6736 [{ 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); }])
6740 dnl Comments are as per solaris.
6741 AC_DEFINE([PTY_OPEN], [fd = open (pty_name, O_RDWR | O_NONBLOCK)])
6742 AC_DEFINE([PTY_TTY_NAME_SPRINTF],
6743 [{ 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); }])
6747 AC_DEFINE([FIRST_PTY_LETTER], ['s'])
6748 AC_DEFINE([PTY_NAME_SPRINTF], [])
6749 dnl on Haiku pty names aren't distinctive, thus the use of posix_openpt
6750 AC_DEFINE([PTY_OPEN], [fd = posix_openpt (O_RDWR | O_NONBLOCK)])
6751 AC_DEFINE([PTY_TTY_NAME_SPRINTF],
6752 [{ char *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); }])
6758 solaris | unixware )
6759 dnl This change means that we don't loop through allocate_pty too
6760 dnl many times in the (rare) event of a failure.
6761 AC_DEFINE([FIRST_PTY_LETTER], ['z'])
6762 AC_DEFINE([PTY_NAME_SPRINTF], [strcpy (pty_name, "/dev/ptmx");])
6763 dnl Push various streams modules onto a PTY channel. Used in process.c.
6764 AC_DEFINE([SETUP_SLAVE_PTY],
6765 [if (ioctl (std_in, I_PUSH, "ptem") == -1) fatal ("ioctl I_PUSH ptem"); if (ioctl (std_in, I_PUSH, "ldterm") == -1) fatal ("ioctl I_PUSH ldterm"); if (ioctl (std_in, I_PUSH, "ttcompat") == -1) fatal ("ioctl I_PUSH ttcompat");], [How to set up a slave PTY, if needed.])
6770 AH_TEMPLATE([SIGNALS_VIA_CHARACTERS], [Make process_send_signal work by
6771 "typing" a signal character on the pty.])
6774 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
6775 aix4-2 | cygwin | gnu | dragonfly | freebsd | netbsd | openbsd | darwin )
6776 AC_DEFINE([SIGNALS_VIA_CHARACTERS], [1])
6779 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
6780 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
6781 gnu-linux | gnu-kfreebsd )
6783 AC_CACHE_CHECK([for signals via characters], [emacs_cv_signals_via_chars],
6784 [AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
6785 #include <linux/version.h>
6786 #if LINUX_VERSION_CODE < 0x20400
6787 # error "Linux version too old"
6790 [emacs_cv_signals_via_chars=yes],
6791 [emacs_cv_signals_via_chars=no])])
6793 test "$emacs_cv_signals_via_chars" = yes &&
6794 AC_DEFINE([SIGNALS_VIA_CHARACTERS], [1])
6799 AH_TEMPLATE([TAB3], [Undocumented.])
6802 darwin) AC_DEFINE([TAB3], [OXTABS]) ;;
6804 gnu | dragonfly | freebsd | netbsd | openbsd )
6805 AC_DEFINE([TABDLY], [OXTABS], [Undocumented.])
6806 AC_DEFINE([TAB3], [OXTABS])
6809 gnu-linux | gnu-kfreebsd )
6817 [AC_DEFINE([GC_MARK_SECONDARY_STACK()],
6818 [do { extern void *__libc_ia64_register_backing_store_base; __builtin_ia64_flushrs (); mark_memory (__libc_ia64_register_backing_store_base, __builtin_ia64_bsp ());} while (false)],
6819 [Mark a secondary stack, like the register stack on the ia64.])], [])
6823 AC_DEFINE([RUN_TIME_REMAP], [1], [Define if emacs.c needs to call
6824 run_time_remap; for HPUX.])
6829 dnl This won't be used automatically yet. We also need to know, at least,
6830 dnl that the stack is continuous.
6831 AH_TEMPLATE([GC_SETJMP_WORKS], [Define if setjmp is known to save all
6832 registers relevant for conservative garbage collection in the jmp_buf.])
6836 dnl Not all the architectures are tested, but there are Debian packages
6837 dnl for SCM and/or Guile on them, so the technique must work. See also
6838 dnl comments in alloc.c concerning setjmp and gcc.
6839 dnl Fixme: it's probably safe to just use the GCC conditional below.
6840 gnu-linux | gnu-kfreebsd )
6841 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
6842 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
6843 || defined __alpha__ || defined __mips__ || defined __s390__ \
6844 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
6845 || defined __x86_64__ \
6846 || defined __ia64__ || defined __sh__
6849 # error "setjmp not known to work on this arch"
6851 ]], [[]])], [AC_DEFINE([GC_SETJMP_WORKS], [1])])
6856 if test x$GCC = xyes; then
6857 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
6858 AC_DEFINE([GC_SETJMP_WORKS], [1])
6861 aix* | dragonfly | freebsd | netbsd | openbsd | solaris )
6862 AC_DEFINE([GC_SETJMP_WORKS], [1])
6867 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
6868 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
6871 [[#include <setjmp.h>
6873 # define _longjmp longjmp
6878 _longjmp (j, 1);]])],
6879 [emacs_cv_func__setjmp=yes],
6880 [emacs_cv_func__setjmp=no])])
6881 if test $emacs_cv_func__setjmp = yes; then
6882 AC_DEFINE([HAVE__SETJMP], [1], [Define to 1 if _setjmp and _longjmp work.])
6885 # We need to preserve signal mask to handle C stack overflows.
6886 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
6889 [[#include <setjmp.h>
6892 if (! sigsetjmp (j, 1))
6893 siglongjmp (j, 1);]])],
6894 [emacs_cv_func_sigsetjmp=yes],
6895 [emacs_cv_func_sigsetjmp=no])])
6896 if test $emacs_cv_func_sigsetjmp = yes; then
6897 AC_DEFINE([HAVE_SIGSETJMP], [1],
6898 [Define to 1 if sigsetjmp and siglongjmp work.])
6901 case $emacs_cv_func_sigsetjmp,$emacs_cv_alternate_stack,$opsys in
6902 yes,yes,* | *,*,mingw32)
6903 AC_DEFINE([HAVE_STACK_OVERFLOW_HANDLING], [1],
6904 [Define to 1 if C stack overflow can be handled in some cases.]);;
6908 solaris | unixware )
6909 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
6910 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
6911 dnl and this is all we need.
6912 AC_DEFINE([TIOCSIGSEND], [TIOCSIGNAL], [Some platforms redefine this.])
6919 dnl Used in xfaces.c.
6920 AC_DEFINE([XOS_NEEDS_TIME_H], [1], [Compensate for a bug in Xos.h on
6921 some systems, where it requires time.h.])
6926 dnl Define symbols to identify the version of Unix this is.
6927 dnl Define all the symbols that apply correctly.
6928 AH_TEMPLATE([DOS_NT], [Define if the system is MS DOS or MS Windows.])
6929 AH_TEMPLATE([MSDOS], [Define if the system is MS DOS.])
6930 AH_TEMPLATE([USG], [Define if the system is compatible with System III.])
6931 AH_TEMPLATE([USG5_4],
6932 [Define if the system is compatible with System V Release 4.])
6936 AC_DEFINE([USG], [])
6937 dnl This symbol should be defined on AIX Version 3 ???????
6938 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
6940 # error "_AIX not defined"
6942 ]], [[]])], [], [AC_DEFINE([_AIX], [], [Define if the system is AIX.])])
6946 AC_DEFINE([CYGWIN], [1], [Define if the system is Cygwin.])
6950 dnl Not __APPLE__, as this may not be defined on non-macOS Darwin.
6951 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
6952 dnl distinguish macOS from pure Darwin.
6953 AC_DEFINE([DARWIN_OS], [], [Define if the system is Darwin.])
6956 gnu-linux | gnu-kfreebsd )
6957 AC_DEFINE([USG], [])
6958 AC_DEFINE([GNU_LINUX], [],
6959 [Define if this system is compatible with GNU/Linux.])
6963 AC_DEFINE([USG], [])
6964 AC_DEFINE([HPUX], [], [Define if the system is HPUX.])
6968 AC_DEFINE([DOS_NT], [])
6969 AC_DEFINE([WINDOWSNT], [1], [Define if compiling for native MS Windows.])
6970 if test "x$ac_enable_checking" != "x" ; then
6971 AC_DEFINE([EMACSDEBUG], [1],
6972 [Define to 1 to enable w32 debug facilities.])
6977 AC_DEFINE([USG], [])
6978 AC_DEFINE([USG5_4], [])
6979 AC_DEFINE([SOLARIS2], [], [Define if the system is Solaris.])
6983 AC_DEFINE([USG], [])
6984 AC_DEFINE([USG5_4], [])
6988 AC_DEFINE([HAIKU], [], [Define if the system is Haiku.])
6992 AC_SYS_POSIX_TERMIOS
6993 if test $ac_cv_sys_posix_termios = yes; then
6994 AC_CHECK_SIZEOF([speed_t], [], [#include <termios.h>])
6995 dnl on Haiku, and possibly other platforms, speed_t is defined to
6996 dnl unsigned char, even when speeds greater than 200 baud are
6999 if test ${ac_cv_sizeof_speed_t} -lt 2; then
7000 AC_DEFINE([HAVE_TINY_SPEED_T], [1],
7001 [Define to 1 if speed_t has some sort of nonsensically tiny size.])
7005 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
7008 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
7009 emacs_cv_usable_FIONREAD=no
7013 emacs_cv_usable_FIONREAD=yes
7018 [AC_LANG_PROGRAM([[#include <sys/types.h>
7019 #include <sys/ioctl.h>
7021 # include <sys/filio.h>
7024 [[int foo = ioctl (0, FIONREAD, &foo);]])],
7025 [emacs_cv_usable_FIONREAD=yes],
7026 [emacs_cv_usable_FIONREAD=no])
7029 if test $emacs_cv_usable_FIONREAD = yes; then
7030 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
7032 if test $emacs_broken_SIGIO = no; then
7033 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
7035 [AC_LANG_PROGRAM([[#include <fcntl.h>
7038 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
7039 [emacs_cv_usable_SIGIO=yes],
7040 [emacs_cv_usable_SIGIO=no])],
7041 [emacs_cv_usable_SIGIO=yes],
7042 [emacs_cv_usable_SIGIO=no])
7043 if test $emacs_cv_usable_SIGIO = yes; then
7044 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
7048 if test $emacs_broken_SIGIO = no && test $emacs_cv_usable_SIGIO = no; then
7049 AC_CACHE_CHECK([for usable SIGPOLL], [emacs_cv_usable_SIGPOLL],
7051 [AC_LANG_PROGRAM([[#include <fcntl.h>
7054 [[int foo = SIGPOLL | F_SETFL;]])],
7055 [emacs_cv_usable_SIGPOLL=yes],
7056 [emacs_cv_usable_SIGPOLL=no])],
7057 [emacs_cv_usable_SIGPOLL=yes],
7058 [emacs_cv_usable_SIGPOLL=no])
7059 if test $emacs_cv_usable_SIGPOLL = yes; then
7060 AC_DEFINE([USABLE_SIGPOLL], [1], [Define to 1 if SIGPOLL is usable but SIGIO is not.])
7067 dnl It works to open the pty's tty in the parent (Emacs), then
7068 dnl close and reopen it in the child.
7069 AC_DEFINE([USG_SUBTTY_WORKS], [1], [Define for USG systems where it
7070 works to open a pty's tty in the parent process, then close and
7071 reopen it in the child.])
7075 AC_DEFINE([_STRUCTURED_PROC], [1], [Needed for system_process_attributes
7080 # Set up the CFLAGS for real compilation, so we can substitute it.
7081 CFLAGS="$REAL_CFLAGS"
7082 CPPFLAGS="$REAL_CPPFLAGS"
7085 ## Hack to detect a buggy GCC version.
7086 if test "$GCC" = yes && \
7087 $CC --version 2> /dev/null | grep 'gcc.* 4.5.0' >/dev/null; then
7089 *-fno-optimize-sibling-calls*) ;;
7091 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS.]);;
7095 version=$PACKAGE_VERSION
7097 copyright="Copyright (C) 2024 Free Software Foundation, Inc."
7098 AC_DEFINE_UNQUOTED([COPYRIGHT], ["$copyright"],
7099 [Short copyright string for this version of Emacs.])
7100 AC_SUBST([copyright])
7102 ### Specify what sort of things we'll be editing into Makefile and config.h.
7103 ### Use configuration here uncanonicalized to avoid exceeding size limits.
7105 AC_SUBST([configuration])
7107 AC_SUBST([canonical])
7110 AC_SUBST([exec_prefix])
7113 AC_SUBST([gsettingsschemadir])
7114 AC_SUBST([sharedstatedir])
7115 AC_SUBST([libexecdir])
7118 AC_SUBST([lispdirrel])
7120 AC_SUBST([standardlisppath])
7121 AC_SUBST([locallisppath])
7122 AC_SUBST([lisppath])
7123 AC_SUBST([x_default_search_path])
7125 AC_SUBST([archlibdir])
7126 AC_SUBST([etcdocdir])
7127 AC_SUBST([bitmapdir])
7129 AC_SUBST([gameuser])
7130 AC_SUBST([gamegroup])
7131 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
7132 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
7133 ## end of LIBX_BASE, but nothing ever set it.
7134 AC_SUBST([LD_SWITCH_X_SITE])
7135 AC_SUBST([C_SWITCH_X_SITE])
7136 AC_SUBST([GNUSTEP_CFLAGS])
7138 ## Used in lwlib/Makefile.in.
7139 AC_SUBST([X_TOOLKIT_TYPE])
7140 AC_SUBST([ns_appdir])
7141 AC_SUBST([ns_appbindir])
7142 AC_SUBST([ns_applibexecdir])
7143 AC_SUBST([ns_applibdir])
7144 AC_SUBST([ns_appresdir])
7145 AC_SUBST([ns_appsrc])
7146 AC_SUBST([GNU_OBJC_CFLAGS])
7147 AC_SUBST([OTHER_FILES])
7149 if test -n "${term_header}"; then
7150 AC_DEFINE_UNQUOTED([TERM_HEADER], ["${term_header}"],
7151 [Define to the header for the built-in window system.])
7154 AC_DEFINE_UNQUOTED([EMACS_CONFIGURATION], ["${canonical}"],
7155 [Define to the canonical Emacs configuration name.])
7156 AC_DEFINE_UNQUOTED([EMACS_CONFIG_OPTIONS], "${emacs_config_options}",
7157 [Define to the options passed to configure.])
7162 if test "${HAVE_X_WINDOWS}" = "yes" ; then
7163 AC_DEFINE([HAVE_X_WINDOWS], [1],
7164 [Define to 1 if you want to use the X window system.])
7166 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
7168 if test "$HAVE_CAIRO" = "yes"; then
7169 FONT_OBJ="$FONT_OBJ ftfont.o ftcrfont.o"
7170 elif test "$HAVE_XFT" = "yes"; then
7171 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o"
7172 elif test "$HAVE_FREETYPE" = "yes"; then
7173 FONT_OBJ="$FONT_OBJ ftfont.o"
7177 if test "${window_system}" = "pgtk"; then
7178 FONT_OBJ="ftfont.o ftcrfont.o"
7181 if test "${HAVE_BE_APP}" = "yes" ; then
7182 if test "${HAVE_CAIRO}" = "yes"; then
7183 FONT_OBJ="$FONT_OBJ ftfont.o ftcrfont.o"
7187 if test "${HAVE_HARFBUZZ}" = "yes" ; then
7188 FONT_OBJ="$FONT_OBJ hbfont.o"
7190 AC_SUBST([FONT_OBJ])
7191 AC_SUBST([XMENU_OBJ])
7193 AC_SUBST([FONT_OBJ])
7197 if test "${USE_X_TOOLKIT}" != "none" ; then
7199 AC_DEFINE([USE_X_TOOLKIT], [1], [Define to 1 if using an X toolkit.])
7200 if test "${USE_X_TOOLKIT}" = "LUCID"; then
7201 AC_DEFINE([USE_LUCID], [1], [Define to 1 if using the Lucid X toolkit.])
7202 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
7203 AC_DEFINE([USE_MOTIF], [1], [Define to 1 if using the Motif X toolkit.])
7207 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
7208 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
7212 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
7213 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
7214 MOTIF_LIBW="MOTIF_LIBW -lXimp"
7218 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
7219 MOTIF_LIBW="$MOTIF_LIBW -li18n"
7222 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
7225 AC_SUBST([WIDGET_OBJ])
7228 case "$USE_X_TOOLKIT" in
7229 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
7230 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
7231 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
7233 if test "$HAVE_XWIDGETS" = "yes"; then
7234 TOOLKIT_LIBW="$TOOLKIT_LIBW -lXcomposite"
7236 AC_SUBST([TOOLKIT_LIBW])
7238 if test "${opsys}" != "mingw32"; then
7239 if test "$USE_X_TOOLKIT" = "none"; then
7240 LIBXT_OTHER="\$(LIBXSM)"
7242 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
7245 AC_SUBST([LIBXT_OTHER])
7247 if test "${HAVE_X11}" = "yes" ; then
7248 AC_DEFINE([HAVE_X11], [1],
7249 [Define to 1 if you want to use version 11 of X windows.])
7250 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
7254 AC_SUBST([LIBX_OTHER])
7257 if test "$HAVE_GTK" = yes || test "$HAVE_X11" != yes; then
7259 elif test "$USE_X_TOOLKIT" = none; then
7261 LIBXMENU='$(oldXMenudir)/libXMenu11.a'
7262 AUTODEPEND_PARENTS="$AUTODEPEND_PARENTS oldXMenu"
7264 LIBXMENU='$(lwlibdir)/liblw.a'
7265 AUTODEPEND_PARENTS="$AUTODEPEND_PARENTS lwlib"
7267 AC_SUBST([LIBXMENU])
7269 AC_CACHE_CHECK([for struct alignment],
7270 [emacs_cv_struct_alignment],
7272 [AC_LANG_PROGRAM([[#include <stddef.h>
7273 struct s { char c; } __attribute__ ((aligned (8)));
7274 struct t { char c; struct s s; };
7275 char verify[offsetof (struct t, s) == 8 ? 1 : -1];
7277 [emacs_cv_struct_alignment=yes],
7278 [emacs_cv_struct_alignment=no])])
7279 if test "$emacs_cv_struct_alignment" = yes; then
7280 AC_DEFINE([HAVE_STRUCT_ATTRIBUTE_ALIGNED], [1],
7281 [Define to 1 if 'struct __attribute__ ((aligned (N)))' aligns the
7282 structure to an N-byte boundary.])
7288 AC_CACHE_CHECK([for statement expressions],
7289 [emacs_cv_statement_expressions],
7291 [AC_LANG_PROGRAM([], [[return ({ int x = 5; x-x; });]])],
7292 [emacs_cv_statement_expressions=yes],
7293 [emacs_cv_statement_expressions=no])])
7294 if test "$emacs_cv_statement_expressions" = yes; then
7295 AC_DEFINE([HAVE_STATEMENT_EXPRESSIONS], [1],
7296 [Define to 1 if statement expressions work.])
7299 if test "${GNU_MALLOC}" = "yes" ; then
7300 AC_DEFINE([GNU_MALLOC], [1],
7301 [Define to 1 if you want to use the GNU memory allocator.])
7305 if test "${REL_ALLOC}" = "yes" ; then
7306 AC_DEFINE([REL_ALLOC], [1],
7307 [Define REL_ALLOC if you want to use the relocating allocator for
7310 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
7312 AC_SUBST([RALLOC_OBJ])
7314 if test "$opsys" = "cygwin"; then
7315 CYGWIN_OBJ="cygw32.o"
7316 ## Cygwin differs because of its unexec().
7318 POST_ALLOC_OBJ=lastfile.o
7319 elif test "$opsys" = "mingw32"; then
7322 POST_ALLOC_OBJ=lastfile.o
7325 PRE_ALLOC_OBJ=lastfile.o
7328 AC_SUBST([CYGWIN_OBJ])
7329 AC_SUBST([PRE_ALLOC_OBJ])
7330 AC_SUBST([POST_ALLOC_OBJ])
7332 dnl Call this 'FORTIFY_SOUR' so that it sorts before the 'FORTIFY_SOURCE'
7333 dnl verbatim defined above. The tricky name is apropos, as this hack
7334 dnl makes Fortify go sour!
7335 AH_VERBATIM([FORTIFY_SOUR],
7336 [/* Without the following workaround, Emacs runs slowly on OS X 10.8.
7337 The workaround disables some useful run-time checking, so it
7338 should be conditional to the platforms with the performance bug.
7339 Perhaps Apple will fix this some day; also see m4/extern-inline.m4. */
7340 #if defined __APPLE__ && defined __GNUC__
7341 # ifndef _DONT_USE_CTYPE_INLINE_
7342 # define _DONT_USE_CTYPE_INLINE_
7344 # ifndef _FORTIFY_SOURCE
7345 # define _FORTIFY_SOURCE 0
7350 # If user asks to omit features, disable optional features that gnulib
7351 # might otherwise enable.
7352 if test "$with_features" = no && test "$enable_acl" != yes; then
7356 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
7357 # it temporarily reverts them to their pre-pkg-config values,
7358 # because gnulib needs to work with both src (which uses the
7359 # pkg-config stuff) and lib-src (which does not). For example, gnulib
7360 # may need to determine whether CLOCK_TIME_LIB should contain -lrt,
7361 # and it therefore needs to run in an environment where LIBS does not
7362 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
7363 # for some package unrelated to lib-src.
7366 CFLAGS=$pre_PKG_CONFIG_CFLAGS
7367 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
7368 gl_ASSERT_NO_GNULIB_POSIXCHECK
7369 gl_ASSERT_NO_GNULIB_TESTS
7375 # Set up libgmp on Android. Make sure to override what gnulib has
7378 if test "$REALLY_ANDROID" = "yes" && test "$with_libgmp" != "no"; then
7380 ndk_SEARCH_MODULE([libgmp], [LIBGMP], [HAVE_LIBGMP=yes])
7382 if test "$HAVE_LIBGMP" = "yes"; then
7383 SAVE_CFLAGS="$CFLAGS"
7384 CFLAGS="$CFLAGS $LIBGMP_CFLAGS"
7385 unset ac_cv_header_gmp_h
7386 unset ac_cv_header_gmp_gmp_h
7387 AC_CHECK_HEADERS([gmp.h gmp/gmp.h], [break])
7388 CFLAGS="$SAVE_CFLAGS"
7390 GL_GENERATE_GMP_H_CONDITION=
7391 GL_GENERATE_GMP_GMP_H=
7392 GL_GENERATE_GMP_GMP_H_CONDITION=
7393 GL_GENERATE_MINI_GMP_H=
7394 GL_GENERATE_MINI_GMP_H_CONDITION=
7396 if test "$ac_cv_header_gmp_h" != "no" \
7397 || test "$ac_cv_header_gmp_gmp_h" != "no"; then
7399 GL_GENERATE_GMP_H=false
7400 LIBGMP="$LIBGMP_LIBS"
7405 AC_SUBST([LIBGMP_CFLAGS])
7407 # timer_getoverrun needs the same library as timer_settime
7409 LIBS="$LIB_TIMER_TIME $LIBS"
7410 AC_CHECK_FUNCS([timer_getoverrun])
7413 if test "${opsys}" = "mingw32"; then
7414 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I \${abs_top_srcdir}/nt/inc"
7415 # Remove unneeded switches from the value of CC that goes to Makefiles
7416 CC=`AS_ECHO(["$CC"]) | sed -e "s,$GCC_TEST_OPTIONS,,"`
7420 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
7422 cygwin) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000" ;;
7425 if test "$HAVE_NS" = "yes"; then
7426 libs_nsgui="-framework AppKit"
7427 if test "$NS_IMPL_COCOA" = "yes"; then
7428 libs_nsgui="$libs_nsgui -framework IOKit -framework Carbon \
7429 -framework IOSurface -framework QuartzCore"
7430 if test "$emacs_cv_macosx_12_0" = "yes"; then
7431 libs_nsgui="$libs_nsgui -framework UniformTypeIdentifiers"
7437 LD_SWITCH_SYSTEM_TEMACS=$libs_nsgui
7438 ## The -headerpad option tells ld (see man page) to leave room at the
7439 ## end of the header for adding load commands. Needed for dumping.
7440 ## 0x1000 is enough for roughly 52 load commands on the x86_64
7441 ## architecture (where they are 78 bytes each). The actual number of
7442 ## load commands added is not consistent but normally ranges from
7443 ## about 14 to about 34. Setting it high gets us plenty of slop and
7444 ## only costs about 1.5K of wasted binary space.
7445 headerpad_extra=1000
7446 if test "$with_unexec" = yes; then
7447 LD_SWITCH_SYSTEM_TEMACS="-fno-pie $LD_SWITCH_SYSTEM_TEMACS -Xlinker -headerpad -Xlinker $headerpad_extra"
7450 ## This is here because src/Makefile.in did some extra fiddling around
7451 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
7452 ## LD_SWITCH_SYSTEM_TEMACS instead,
7453 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
7454 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
7457 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
7458 ## find X at run-time.
7459 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
7460 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
7461 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
7462 ## had different values in configure (in ac_link) and src/Makefile.in.
7463 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
7464 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
7467 ## Is it any better under MinGW64 to relocate emacs into higher addresses?
7468 ## If the values of -image-base are modified, the corresponding
7469 ## values of DEFAULT_IMAGE_BASE in w32fns.c should be kept in sync.
7470 case "$canonical" in
7471 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x400000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
7472 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
7474 ## If they want unexec, disable Windows ASLR for the Emacs binary
7475 if test "$with_dumping" = "unexec"; then
7476 case "$canonical" in
7477 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -Wl,-disable-dynamicbase -Wl,-disable-high-entropy-va -Wl,-default-image-base-low" ;;
7478 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -Wl,-disable-dynamicbase" ;;
7483 *) LD_SWITCH_SYSTEM_TEMACS= ;;
7486 # -no-pie or -nopie fixes a temacs segfault on Gentoo, OpenBSD,
7487 # Ubuntu, and other systems with "hardened" GCC configurations for
7488 # some reason (Bug#18784). We don't know why this works, but not
7489 # segfaulting is better than segfaulting. Use ac_c_werror_flag=yes
7490 # when trying the option, otherwise clang keeps warning that it does
7491 # not understand it, and pre-4.6 GCC has a similar problem
7492 # (Bug#20338). Prefer -no-pie to -nopie, as -no-pie is the
7493 # spelling used by GCC 6.1.0 and later (Bug#24682).
7495 [for $CC option to disable position independent executables],
7496 [emacs_cv_prog_cc_no_pie],
7497 [if test $with_unexec = no; then
7498 emacs_cv_prog_cc_no_pie='not needed'
7500 emacs_save_c_werror_flag=$ac_c_werror_flag
7501 emacs_save_LDFLAGS=$LDFLAGS
7502 ac_c_werror_flag=yes
7503 for emacs_cv_prog_cc_no_pie in -no-pie -nopie no; do
7504 test $emacs_cv_prog_cc_no_pie = no && break
7505 LDFLAGS="$emacs_save_LDFLAGS $emacs_cv_prog_cc_no_pie"
7506 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], [break])
7508 ac_c_werror_flag=$emacs_save_c_werror_flag
7509 LDFLAGS=$emacs_save_LDFLAGS
7511 case $emacs_cv_prog_cc_no_pie in
7513 LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS $emacs_cv_prog_cc_no_pie"
7517 if test x$ac_enable_profiling != x ; then
7519 *freebsd | gnu-linux) ;;
7520 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
7524 LD_SWITCH_SYSTEM_TEMACS="$LDFLAGS_NOCOMBRELOC $LD_SWITCH_SYSTEM_TEMACS"
7526 AC_SUBST([LD_SWITCH_SYSTEM_TEMACS])
7528 ## Common for all window systems
7529 if test "$window_system" != "none"; then
7530 AC_DEFINE([HAVE_WINDOW_SYSTEM], [1], [Define if you have a window system.])
7531 AC_DEFINE([POLL_FOR_INPUT], [1],
7532 [Define if you poll periodically to detect C-g.])
7533 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
7535 if test "$window_system" = "x11" || test "$REALLY_ANDROID" = "yes"; then
7536 AC_DEFINE([HAVE_TEXT_CONVERSION], [1],
7537 [Define if the window system has text conversion support.])
7538 WINDOW_SYSTEM_OBJ="$WINDOW_SYSTEM_OBJ textconv.o"
7542 AC_SUBST([WINDOW_SYSTEM_OBJ])
7544 # Some systems have MB_CUR_MAX defined to a call to
7545 # __ctype_get_mb_cur_max, but do not have __ctype_get_mb_cur_max in
7546 # libc. Check for that situation and define MB_CUR_MAX to something
7549 AC_CHECK_FUNC([__ctype_get_mb_cur_max])
7551 AC_CACHE_CHECK([whether MB_CUR_MAX is defined to function that won't link],
7552 [emacs_cv_broken_mb_cur_max],
7553 [AC_EGREP_CPP(__ctype_get_mb_cur_max, [
7556 #define MB_CUR_MAX -1
7558 static int foo = MB_CUR_MAX;
7559 ], [AS_IF([test "$ac_cv_func___ctype_get_mb_cur_max" = "yes"],
7560 [emacs_cv_broken_mb_cur_max=no],
7561 [emacs_cv_broken_mb_cur_max=yes])],
7562 [emacs_cv_broken_mb_cur_max=no])])
7564 AS_IF([test "$emacs_cv_broken_mb_cur_max" = "yes"],
7565 # Define this to 4, which is right for Android.
7566 [AS_CASE([$opsys], [android],
7567 [AC_DEFINE([REPLACEMENT_MB_CUR_MAX], [4],
7568 [Define to MB_CUR_MAX if stdlib.h is broken.])],
7569 [AC_MSG_ERROR([MB_CUR_MAX does not work on your system.
7570 Please modify configure.ac to set an appropriate value, then
7571 send your change to bug-gnu-emacs@gnu.org])])])
7573 AH_TOP([/* GNU Emacs site configuration template file.
7575 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2021
7576 Free Software Foundation, Inc.
7578 This file is part of GNU Emacs.
7580 GNU Emacs is free software: you can redistribute it and/or modify
7581 it under the terms of the GNU General Public License as published by
7582 the Free Software Foundation, either version 3 of the License, or (at
7583 your option) any later version.
7585 GNU Emacs is distributed in the hope that it will be useful,
7586 but WITHOUT ANY WARRANTY; without even the implied warranty of
7587 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
7588 GNU General Public License for more details.
7590 You should have received a copy of the GNU General Public License
7591 along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>. */
7594 /* No code in Emacs #includes config.h twice, but some bits of code
7595 intended to work with other packages as well (like gmalloc.c)
7596 think they can include it as many times as they like. */
7597 #ifndef EMACS_CONFIG_H
7598 #define EMACS_CONFIG_H
7601 AH_BOTTOM([#include <conf_post.h>
7603 #endif /* EMACS_CONFIG_H */
7612 #### Report on what we decided to do.
7613 #### Report GTK as a toolkit, even if it doesn't use Xt.
7614 #### It makes printing result more understandable as using GTK sets
7615 #### toolkit_scroll_bars to yes by default.
7616 if test "${HAVE_GTK}" = "yes"; then
7617 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
7620 if test $USE_ACL -ne 0; then
7622 test "$LIB_ACL" && ACL_SUMMARY="$ACL_SUMMARY $LIB_ACL"
7623 test "$LIB_XATTR" && ACL_SUMMARY="$ACL_SUMMARY $LIB_XATTR"
7628 if test -z "$GMP_H"; then
7634 emacs_standard_dirs='Standard dirs'
7636 Configured for '${canonical}'.
7638 Where should the build process find the source code? ${srcdir}
7639 What compiler should emacs be built with? ${CC} ${CFLAGS}
7640 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
7641 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
7642 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
7643 What window system should Emacs use? ${window_system}
7644 What toolkit should Emacs use? ${USE_X_TOOLKIT}
7645 Where do we find X Windows header files? ${x_includes:-$emacs_standard_dirs}
7646 Where do we find X Windows libraries? ${x_libraries:-$emacs_standard_dirs}"])
7648 #### Please respect alphabetical ordering when making additions.
7650 emacs_config_features=
7651 for opt in ACL BE_APP CAIRO DBUS FREETYPE GCONF GIF GLIB GMP GNUTLS GPM GSETTINGS \
7652 HARFBUZZ IMAGEMAGICK JPEG LCMS2 LIBOTF LIBSELINUX LIBSYSTEMD LIBXML2 \
7653 M17N_FLT MODULES NATIVE_COMP NOTIFY NS OLDXMENU PDUMPER PGTK PNG RSVG SECCOMP \
7654 SOUND SQLITE3 THREADS TIFF TOOLKIT_SCROLL_BARS TREE_SITTER \
7655 UNEXEC WEBP X11 XAW3D XDBE XFT XIM XINPUT2 XPM XWIDGETS X_TOOLKIT \
7659 PDUMPER) val=${with_pdumper} ;;
7660 UNEXEC) val=${with_unexec} ;;
7661 GLIB) val=${emacs_cv_links_glib} ;;
7662 NOTIFY|ACL) eval val=\${${opt}_SUMMARY} ;;
7663 TOOLKIT_SCROLL_BARS|X_TOOLKIT) eval val=\${USE_$opt} ;;
7664 THREADS) val=${threads_enabled} ;;
7665 *) eval val=\${HAVE_$opt} ;;
7668 xno|xnone|x) continue ;;
7673 GTK*|LUCID|MOTIF) opt=$val ;;
7679 *lkqueue*) opt="$opt LIBKQUEUE" ;;
7680 *kqueue*) opt="$opt KQUEUE" ;;
7681 *inotify*) opt="$opt INOTIFY" ;;
7682 *gfile*) opt="$opt GFILENOTIFY" ;;
7683 *w32*) opt="$opt W32NOTIFY" ;;
7687 AS_VAR_APPEND([emacs_config_features], ["$optsep$opt"])
7690 AC_DEFINE_UNQUOTED([EMACS_CONFIG_FEATURES], ["${emacs_config_features}"],
7691 [Summary of some of the main features enabled by configure.])
7693 # This is just a printable representation of the shared user ID.
7694 android_shared_user=
7695 AS_IF([test -n "$with_shared_user_id"],[android_shared_user="($with_shared_user_id)"])
7697 AS_ECHO([" Does Emacs use -lXaw3d? ${HAVE_XAW3D}
7698 Is Emacs being built for Android? ${ANDROID} ${android_shared_user}
7699 Does Emacs use the X Double Buffer Extension? ${HAVE_XDBE}
7700 Does Emacs use -lXpm? ${HAVE_XPM}
7701 Does Emacs use -ljpeg? ${HAVE_JPEG}
7702 Does Emacs use -ltiff? ${HAVE_TIFF}
7703 Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF
7704 Does Emacs use a png library? ${HAVE_PNG} $LIBPNG
7705 Does Emacs use -lrsvg-2? ${HAVE_RSVG}
7706 Does Emacs use -lwebp? ${HAVE_WEBP}
7707 Does Emacs use -lsqlite3? ${HAVE_SQLITE3}
7708 Does Emacs use cairo? ${HAVE_CAIRO}
7709 Does Emacs use -llcms2? ${HAVE_LCMS2}
7710 Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}
7711 Does Emacs use native APIs for images? ${NATIVE_IMAGE_API}
7712 Does Emacs support sound? ${HAVE_SOUND}
7713 Does Emacs use -lgpm? ${HAVE_GPM}
7714 Does Emacs use -ldbus? ${HAVE_DBUS}
7715 Does Emacs use -lgconf? ${HAVE_GCONF}
7716 Does Emacs use GSettings? ${HAVE_GSETTINGS}
7717 Does Emacs use a file notification library? ${NOTIFY_SUMMARY}
7718 Does Emacs use access control lists? ${ACL_SUMMARY}
7719 Does Emacs use -lselinux? ${HAVE_LIBSELINUX}
7720 Does Emacs use -lgnutls? ${HAVE_GNUTLS}
7721 Does Emacs use -lxml2? ${HAVE_LIBXML2}
7722 Does Emacs use -lfreetype? ${HAVE_FREETYPE}
7723 Does Emacs use HarfBuzz? ${HAVE_HARFBUZZ}
7724 Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}
7725 Does Emacs use -lotf? ${HAVE_LIBOTF}
7726 Does Emacs use -lxft? ${HAVE_XFT}
7727 Does Emacs use -lsystemd? ${HAVE_LIBSYSTEMD}
7728 Does Emacs use -ltree-sitter? ${HAVE_TREE_SITTER}
7729 Does Emacs use the GMP library? ${HAVE_GMP}
7730 Does Emacs directly use zlib? ${HAVE_ZLIB}
7731 Does Emacs have dynamic modules support? ${HAVE_MODULES}
7732 Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}
7733 Does Emacs support Xwidgets? ${HAVE_XWIDGETS}
7734 Does Emacs have threading support in lisp? ${threads_enabled}
7735 Does Emacs support the portable dumper? ${with_pdumper}
7736 Does Emacs support legacy unexec dumping? ${with_unexec}
7737 Which dumping strategy does Emacs use? ${with_dumping}
7738 Does Emacs have native lisp compiler? ${HAVE_NATIVE_COMP}
7739 Does Emacs use version 2 of the X Input Extension? ${HAVE_XINPUT2}
7740 Does Emacs generate a smaller-size Japanese dictionary? ${with_small_ja_dic}
7743 if test -n "${EMACSDATA}"; then
7744 AS_ECHO([" Environment variable EMACSDATA set to: $EMACSDATA"])
7746 if test -n "${EMACSDOC}"; then
7747 AS_ECHO([" Environment variable EMACSDOC set to: $EMACSDOC"])
7752 if test "$HAVE_NS" = "yes"; then
7754 AS_ECHO(["Run '${MAKE-make}' to build Emacs, then run 'src/emacs' to test it.
7755 Run '${MAKE-make} install' in order to build an application bundle.
7756 The application will go to nextstep/Emacs.app and can be run or moved
7758 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
7759 echo "The application will be fully self-contained."
7761 AS_ECHO(["The lisp resources for the application will be installed under ${prefix}.
7762 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
7763 to run if these resources are not installed."])
7768 case $opsys,$emacs_uname_r in
7770 AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
7773 cygwin,3.0.[[0-7]]'('* | cygwin,3.1.[[0-2]]'('*)
7774 AC_DEFINE([HAVE_CYGWIN_O_PATH_BUG], [1],
7775 [Define to 1 if opening a FIFO, socket, or symlink with O_PATH is buggy.]);;
7778 # Remove any trailing slashes in these variables.
7780 */) prefix=`AS_DIRNAME(["$prefix."])`;;
7782 case $exec_prefix in
7783 */) exec_prefix=`AS_DIRNAME(["$exec_prefix."])`;;
7786 if test "$HAVE_NS" = "yes"; then
7787 if test "$NS_IMPL_GNUSTEP" = yes; then
7788 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
7789 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
7790 ns_check_file=Resources/Info-gnustep.plist
7792 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
7793 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
7794 ns_check_file=Contents/Info.plist
7796 AC_SUBST([ns_check_file])
7799 AC_CONFIG_FILES([Makefile lib/gnulib.mk])
7801 dnl config.status treats $srcdir specially, so I think this is ok...
7802 ARCH_INDEPENDENT_CONFIG_FILES([$srcdir/doc/man/emacs.1])
7804 AC_CONFIG_FILES([lib/Makefile lib-src/Makefile oldXMenu/Makefile src/Makefile
7805 lwlib/Makefile nextstep/Makefile nt/Makefile])
7806 ARCH_INDEPENDENT_CONFIG_FILES([doc/emacs/Makefile doc/misc/Makefile
7807 doc/lispintro/Makefile doc/lispref/Makefile
7808 lisp/Makefile leim/Makefile])
7810 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile src/Makefile lwlib/Makefile nextstep/Makefile nt/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile lisp/Makefile leim/Makefile"
7812 dnl The test/ directory is missing if './make-dist --no-tests' was used.
7813 opt_makefile=test/Makefile
7814 if test -f "$srcdir/$opt_makefile.in"; then
7815 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
7816 dnl Again, it's best not to use a variable. Though you can add
7817 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
7818 ARCH_INDEPENDENT_CONFIG_FILES([test/Makefile])
7819 ARCH_INDEPENDENT_CONFIG_FILES([test/manual/noverlay/Makefile])
7821 opt_makefile=test/infra/Makefile
7822 if test -f "$srcdir/$opt_makefile.in"; then
7823 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
7824 dnl Again, it's best not to use a variable. Though you can add
7825 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
7826 ARCH_INDEPENDENT_CONFIG_FILES([test/infra/Makefile])
7829 if test "$ANDROID" = "yes"; then
7830 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES java/Makefile cross/Makefile"
7833 dnl The admin/ directory used to be excluded from tarfiles.
7834 if test -d $srcdir/admin; then
7835 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES admin/charsets/Makefile admin/unidata/Makefile admin/grammars/Makefile"
7836 ARCH_INDEPENDENT_CONFIG_FILES([admin/charsets/Makefile])
7837 ARCH_INDEPENDENT_CONFIG_FILES([admin/unidata/Makefile])
7838 ARCH_INDEPENDENT_CONFIG_FILES([admin/grammars/Makefile])
7842 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
7844 AC_SUBST([SUBDIR_MAKEFILES_IN])
7846 SMALL_JA_DIC=$with_small_ja_dic
7847 AC_SUBST([SMALL_JA_DIC])
7849 dnl The following commands are run on the build system when building
7852 if test "$XCONFIGURE" != "android"; then
7853 dnl You might wonder (I did) why epaths.h is generated by running
7854 dnl make, rather than just letting configure generate it from
7855 dnl epaths.in. One reason is that the various paths are not fully
7856 dnl expanded (see above); e.g.,
7857 dnl gamedir='${localstatedir}/games/emacs'. Secondly, the GNU
7858 dnl Coding standards require that one should be able to run 'make
7859 dnl prefix=/some/where/else' and override the values set by
7860 dnl configure. This also explains the 'move-if-change' test and the
7861 dnl use of force in the 'epaths-force' rule in Makefile.in.
7862 AC_CONFIG_COMMANDS([src/epaths.h], [
7863 if test "${opsys}" = "mingw32"; then
7864 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
7865 elif test "$HAVE_NS" = "yes" && test "$EN_NS_SELF_CONTAINED" = "yes"; then
7866 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-ns-self-contained
7868 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
7869 fi || AC_MSG_ERROR(['src/epaths.h' could not be made.])
7870 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys" HAVE_NS="$HAVE_NS"
7871 EN_NS_SELF_CONTAINED="$EN_NS_SELF_CONTAINED"])
7873 dnl NB we have to cheat and use the ac_... version because abs_top_srcdir
7874 dnl is not yet set, sigh. Or we could use ../$srcdir/src/.gdbinit,
7876 AC_CONFIG_COMMANDS([src/.gdbinit], [
7877 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
7878 AS_ECHO(["source $ac_abs_top_srcdir/src/.gdbinit"]) > src/.gdbinit
7882 dnl Perhaps this would be better named doc-emacs-emacsver.texi?
7883 dnl See comments for etc-refcards-emacsver.tex.
7884 dnl Since we get a doc/emacs directory generated anyway, for the Makefile,
7885 dnl it is not quite the same. But we are generating in $srcdir.
7886 AC_CONFIG_COMMANDS([doc/emacs/emacsver.texi], [
7887 ${MAKE-make} -s --no-print-directory -C doc/emacs doc-emacsver || \
7888 AC_MSG_ERROR(['doc/emacs/emacsver.texi' could not be made.])
7891 dnl If we give this the more natural name, etc/refcards/emacsver.texi,
7892 dnl then a directory etc/refcards is created in the build directory,
7893 dnl which is probably harmless, but confusing (in out-of-tree builds).
7894 dnl (If we were to generate etc/refcards/Makefile, this might change.)
7895 dnl It is really $srcdir/etc/refcards/emacsver.tex that we generate.
7896 AC_CONFIG_COMMANDS([etc-refcards-emacsver.tex], [
7897 ${MAKE-make} -s MAKEFILE_NAME=do-not-make-Makefile etc-emacsver || \
7898 AC_MSG_ERROR(['etc/refcards/emacsver.tex' could not be made.])
7901 if test $AUTO_DEPEND = yes; then
7902 for dir in $AUTODEPEND_PARENTS; do
7903 AS_MKDIR_P([$dir/deps])
7904 AS_MKDIR_P([cross/$dir/deps])
7907 if $gl_gnulib_enabled_dynarray || $gl_gnulib_enabled_scratch_buffer; then
7908 AS_MKDIR_P([lib/malloc])
7909 AS_MKDIR_P([cross/lib/malloc])
7910 if test $AUTO_DEPEND = yes; then
7911 AS_MKDIR_P([lib/deps/malloc])
7912 AS_MKDIR_P([cross/lib/deps/malloc])
7916 dnl Make cross/lib, which various Makefiles in cross expect to
7918 AS_MKDIR_P([cross/lib])
7919 AS_MKDIR_P([cross/lib/malloc])
7920 AS_MKDIR_P([cross/lib/sys])
7921 AS_MKDIR_P([cross/lib-src])
7923 dnl Make cross/etc; this directory will hold the documentation file
7924 dnl holding doc strings for Android specific C files that aren't
7925 dnl built during the initial compilation of Emacs for the build
7927 AS_MKDIR_P([cross/etc])
7929 AS_IF([test "x$with_android" != "xno"], [
7930 dnl Link gnulib files to cross/lib as well. af_alg.h and
7931 dnl lib/save-cwd.h are copied manually from gnulib, and as such
7932 dnl aren't specified in gl_FILE_LIST.
7933 emacs_files='gl_FILE_LIST lib/af_alg.h lib/save-cwd.h'
7934 dnl These files are specific to Emacs.
7935 emacs_files="$emacs_files lib/fingerprint.c lib/fingerprint.h \
7936 lib/save-cwd.c lib/openat-die.c lib/save-cwd.c \
7938 for file in $emacs_files; do
7939 AS_IF([expr "X${file}J" : "Xlib/.*[[ch]]J" >/dev/null],
7940 [AS_IF([test -f "$srcdir/$file"],
7941 [AC_CONFIG_LINKS([cross/$file:$file])])])
7945 # Make java/Makefile
7946 ARCH_INDEPENDENT_CONFIG_FILES([java/Makefile])
7947 ARCH_INDEPENDENT_CONFIG_FILES([cross/Makefile])
7949 # Make java/AndroidManifest.xml
7950 ARCH_INDEPENDENT_CONFIG_FILES([java/AndroidManifest.xml])
7952 # Make ndk-build Makefiles. This is only done inside the recursive
7958 if test ! "$with_mailutils"; then
7959 if test "$with_pop" = yes; then
7960 AC_MSG_WARN([This configuration installs a 'movemail' program
7961 that retrieves POP3 email via only insecure channels.
7962 To omit insecure POP3, you can use '$0 --without-pop'.])
7963 elif test "$with_pop" = no-by-default; then
7964 AC_MSG_WARN([This configuration installs a 'movemail' program
7965 that does not retrieve POP3 email. By default, Emacs 25 and earlier
7966 installed a 'movemail' program that retrieved POP3 email via only
7967 insecure channels, a practice that is no longer recommended but that
7968 you can continue to support by using '$0 --with-pop'.])
7973 # Don't suggest GNU Mailutils, as it hasn't been ported.
7976 emacs_fix_movemail="use '$0 --with-mailutils'"
7977 case `(movemail --version) 2>/dev/null` in
7979 *) emacs_fix_movemail="install GNU Mailutils
7980 <https://mailutils.org> and $emacs_fix_movemail";;
7982 AC_MSG_NOTICE([You might want to $emacs_fix_movemail.]);;
7986 if test "${HAVE_XFT}" = yes; then
7987 AC_MSG_WARN([This configuration uses libXft, which has a number of
7988 font rendering issues, and is being considered for removal in the
7989 next release of Emacs. Please consider using Cairo graphics +
7990 HarfBuzz text shaping instead (they are auto-detected if the
7991 relevant development headers are installed).])
7994 if test "${HAVE_CAIRO}" = "yes" && test "${HAVE_HARFBUZZ}" = no; then
7995 AC_MSG_WARN([This configuration uses the Cairo graphics library,
7996 but not the HarfBuzz font shaping library (minimum version $harfbuzz_required_ver).
7997 We recommend the use of HarfBuzz when using Cairo, please install
7998 appropriate HarfBuzz development packages.])
8001 # Let plain 'make' work.
8002 test "$MAKE" = make || test -f makefile || cat >makefile <<EOF
8006 \$(MAKE) -f Makefile \$?
8008 \$(MAKE) -f Makefile \$<