1 dnl Autoconf script for GNU Emacs
2 dnl To rebuild the 'configure' script from this, execute the command
4 dnl in the directory containing this script.
5 dnl If you changed any AC_DEFINES, also run autoheader.
7 dnl Copyright (C) 1994-1996, 1999-2017 Free Software Foundation, Inc.
9 dnl This file is part of GNU Emacs.
11 dnl GNU Emacs is free software: you can redistribute it and/or modify
12 dnl it under the terms of the GNU General Public License as published by
13 dnl the Free Software Foundation, either version 3 of the License, or
14 dnl (at your option) any later version.
16 dnl GNU Emacs is distributed in the hope that it will be useful,
17 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
18 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 dnl GNU General Public License for more details.
21 dnl You should have received a copy of the GNU General Public License
22 dnl along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
25 dnl Note this is parsed by (at least) make-dist and lisp/cedet/ede/emacs.el.
26 AC_INIT(GNU Emacs, 26.0.50, bug-gnu-emacs@gnu.org)
28 dnl Set emacs_config_options to the options of 'configure', quoted for the shell,
29 dnl and then quoted again for a C string. Separate options with spaces.
30 dnl Add some environment variables, if they were passed via the environment
31 dnl rather than on the command-line.
34 dnl This is the documented way to record the args passed to configure,
35 dnl rather than $ac_configure_args.
36 for opt in "$@" CFLAGS CPPFLAGS LDFLAGS; do
38 -n | --no-create | --no-recursion)
40 CFLAGS | CPPFLAGS | LDFLAGS)
41 eval 'test "${'$opt'+set}" = set' || continue
43 *" $opt="*) continue ;;
45 eval opt=$opt=\$$opt ;;
48 emacs_shell_specials=$IFS\''"#$&()*;<>?@<:@\\`{|~'
50 *[["$emacs_shell_specials"]]*)
53 emacs_quote_apostrophes="s/'/'\\\\''/g"
54 opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_apostrophes"` ;;
59 emacs_quote_for_c='s/[["\\]]/\\&/g; $!s/$/\\n\\/'
60 opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_for_c"` ;;
63 AS_VAR_APPEND([emacs_config_options], ["$optsep$opt"])
67 AC_CONFIG_HEADERS(src/config.h:src/config.in)
68 AC_CONFIG_SRCDIR(src/lisp.h)
69 AC_CONFIG_AUX_DIR(build-aux)
70 AC_CONFIG_MACRO_DIR(m4)
73 AC_CHECK_PROGS(XCRUN, [xcrun])
74 if test -n "$XCRUN"; then
75 if test -z "$MAKE"; then
76 dnl Call the variable MAKE_PROG, not MAKE, to avoid confusion with
77 dnl the usual MAKE variable that 'make' itself uses.
78 AC_CHECK_PROG([MAKE_PROG], [make], [yes])
79 if test -z "$MAKE_PROG"; then
82 xcsdkdir=`$XCRUN --show-sdk-path 2>/dev/null`
87 dnl Check for GNU Make and possibly set MAKE.
88 [emacs_check_gnu_make ()
90 emacs_makeout=`($1 --version) 2>/dev/null` &&
91 case $emacs_makeout in
92 'GNU Make '3.8[1-9]* | 'GNU Make '3.9[0-9]* | \
93 'GNU Make '3.[1-9][0-9][0-9]* | 'GNU Make '[4-9]* | 'GNU Make '[1-9][0-9]* )
94 ac_path_MAKE_found=:;;
97 AC_CACHE_CHECK([for GNU Make], [ac_cv_path_MAKE],
98 [ac_path_MAKE_found=false
99 if test -n "$MAKE"; then
100 emacs_check_gnu_make "$MAKE"
101 ac_cv_path_MAKE=$MAKE
103 emacs_tried_make=false
104 emacs_tried_gmake=false
105 emacs_tried_gnumake=false
106 AC_PATH_PROGS_FEATURE_CHECK([MAKE], [make gmake gnumake],
107 [[emacs_check_gnu_make "$ac_path_MAKE"
108 if $ac_path_MAKE_found; then
109 # Use the fully-qualified program name only if the basename
110 # would not resolve to it.
111 if eval \$emacs_tried_$ac_prog; then
112 ac_cv_path_MAKE=$ac_path_MAKE
114 ac_cv_path_MAKE=$ac_prog
117 eval emacs_tried_$ac_prog=:]])
119 $ac_path_MAKE_found || {
120 AC_MSG_ERROR([[Building Emacs requires GNU Make, at least version 3.81.
121 If you have it installed under another name, configure with 'MAKE=...'.
122 For example, run '$0 MAKE=gnu-make'.]])
124 MAKE=$ac_cv_path_MAKE
127 dnl Canonicalize the configuration name.
133 if test -z "$host_alias"; then
135 # No --host argument was given to 'configure'; therefore $host
136 # was set to a default value based on the build platform. But
137 # this default value may be wrong if we are building from a
138 # 64-bit MSYS[2] pre-configured to build 32-bit MinGW programs.
139 # Therefore, we'll try to get the right host platform from the
142 AC_MSG_CHECKING([the compiler's target])
143 if test -z "$CC"; then
148 cc_target=`$cc -v 2>&1 | sed -n 's/Target: //p'`
152 "") AC_MSG_ERROR([Impossible to obtain $cc compiler target.
153 Please explicitly provide --host.])
155 *) AC_MSG_WARN([Compiler reported non-standard target.
156 Defaulting to $host.])
159 AC_MSG_RESULT([$host])
162 . $srcdir/nt/mingw-cfg.site
166 # srcdir is an absolute path. In this case, force the format
167 # "/c/foo/bar", to simplify later conversions to native Windows
168 # format ("c:/foo/bar").
169 srcdir=`cd "${srcdir}" && pwd -W`
170 # 'eval' pacifies strict POSIX non-MinGW shells (Bug#18612).
171 eval 'srcdir="/${srcdir:0:1}${srcdir:2}"'
177 configuration=${host_alias-${build_alias-$host}}
179 dnl Support for --program-prefix, --program-suffix and
180 dnl --program-transform-name options
183 dnl It is important that variables on the RHS not be expanded here,
184 dnl hence the single quotes. This is per the GNU coding standards, see
185 dnl (autoconf) Installation Directory Variables
186 dnl See also epaths.h below.
187 lispdir='${datadir}/emacs/${version}/lisp'
188 standardlisppath='${lispdir}'
189 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
190 '${datadir}/emacs/site-lisp'
191 lisppath='${locallisppath}:${standardlisppath}'
192 etcdir='${datadir}/emacs/${version}/etc'
193 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
194 etcdocdir='${datadir}/emacs/${version}/etc'
195 gamedir='${localstatedir}/games/emacs'
197 dnl Special option to disable the most of other options.
199 [AS_HELP_STRING([--without-all],
200 [omit almost all features and build
201 small executable with minimal dependencies])],
202 [with_features=$withval],
205 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
206 dnl Create a new --with option that defaults to being disabled.
207 dnl NAME is the base name of the option. The shell variable with_NAME
208 dnl will be set to either the user's value (if the option is
209 dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
210 dnl option is not specified). Note that the shell variable name is
211 dnl constructed as autoconf does, by replacing non-alphanumeric
212 dnl characters with "_".
213 dnl HELP-STRING is the help text for the option.
214 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
215 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
216 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
219 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
220 dnl Create a new --with option that defaults to $with_features.
221 dnl NAME is the base name of the option. The shell variable with_NAME
222 dnl will be set either to 'no' (for a plain --without-NAME) or to
223 dnl 'yes' (if the option is not specified). Note that the shell
224 dnl variable name is constructed as autoconf does, by replacing
225 dnl non-alphanumeric characters with "_".
226 dnl HELP-STRING is the help text for the option.
227 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
228 AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
229 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=$with_features])dnl
232 # FIXME: The default options '--without-mailutils --with-pop' result
233 # in a movemail implementation that supports only unencrypted POP3
234 # connections. Encrypted connections should be the default.
236 OPTION_DEFAULT_OFF([mailutils],
237 [rely on GNU Mailutils, so that the --without-pop through --with-mailhost
238 options are irrelevant])
239 if test "$with_mailutils" = no; then
242 AC_SUBST([with_mailutils])
244 OPTION_DEFAULT_ON([pop],
245 [don't support POP mail retrieval with movemail (--without-pop or
246 --with-mailutils is recommended, as movemail POP is insecure)])
247 if test "$with_pop" = yes; then
248 AC_DEFINE(MAIL_USE_POP)
250 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
252 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
253 if test "$with_kerberos" != no; then
256 AH_TEMPLATE(KERBEROS,
257 [Define to support Kerberos-authenticated POP mail retrieval.])dnl
259 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
260 if test "${with_kerberos5}" != no; then
261 if test "${with_kerberos}" = no; then
265 AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
268 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
269 dnl FIXME hesiod support may not be present, so it seems like an error
270 dnl to define, or at least use, this unconditionally.
271 if test "$with_hesiod" != no; then
272 AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
275 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
276 if test "$with_mail_unlink" != no; then
277 AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
280 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
281 [string giving default POP mail host])],
282 AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
284 AC_ARG_WITH([sound],[AS_HELP_STRING([--with-sound=VALUE],
285 [compile with sound support (VALUE one of: yes, alsa, oss, bsd-ossaudio, no;
286 default yes). Only for GNU/Linux, FreeBSD, NetBSD, MinGW, Cygwin.])],
287 [ case "${withval}" in
288 yes|no|alsa|oss|bsd-ossaudio) val=$withval ;;
289 *) AC_MSG_ERROR(['--with-sound=$withval' is invalid;
290 this option's value should be 'yes', 'no', 'alsa', 'oss', or 'bsd-ossaudio'.])
295 [with_sound=$with_features])
297 dnl FIXME currently it is not the last.
298 dnl This should be the last --with option, because --with-x is
299 dnl added later on when we find the file name of X, and it's best to
300 dnl keep them together visually.
301 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
302 [use an X toolkit (KIT one of: yes or gtk, gtk2, gtk3, lucid or athena, motif, no)])],
303 [ case "${withval}" in
304 y | ye | yes ) val=gtk ;;
306 l | lu | luc | luci | lucid ) val=lucid ;;
307 a | at | ath | athe | athen | athena ) val=athena ;;
308 m | mo | mot | moti | motif ) val=motif ;;
309 g | gt | gtk ) val=gtk ;;
313 AC_MSG_ERROR(['--with-x-toolkit=$withval' is invalid;
314 this option's value should be 'yes', 'no', 'lucid', 'athena', 'motif', 'gtk',
315 'gtk2' or 'gtk3'. 'yes' and 'gtk' are synonyms.
316 'athena' and 'lucid' are synonyms.])
322 OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit); allows buffer and string size up to 2GB on 32-bit hosts, at the cost of 10% to 30% slowdown of Lisp interpreter and larger memory footprint])
323 if test "$with_wide_int" = yes; then
324 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
327 dnl _ON results in a '--without' option in the --help output, so
328 dnl the help text should refer to "don't compile", etc.
329 with_xpm_set=${with_xpm+set}
330 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
331 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
332 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
333 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
334 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
335 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
336 OPTION_DEFAULT_ON([libsystemd],[don't compile with libsystemd support])
337 OPTION_DEFAULT_OFF([cairo],[compile with Cairo drawing (experimental)])
338 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
339 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
341 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
342 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
343 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
345 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
346 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
347 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
348 AC_ARG_WITH([ns],[AS_HELP_STRING([--with-ns],
349 [use Nextstep (macOS Cocoa or GNUstep) windowing system.
350 On by default on macOS.])],[],[with_ns=maybe])
351 OPTION_DEFAULT_OFF([w32], [use native MS Windows GUI in a Cygwin build])
353 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
354 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
355 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
356 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
357 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
358 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
359 OPTION_DEFAULT_ON([zlib],[don't compile with zlib decompression support])
360 OPTION_DEFAULT_OFF([modules],[compile with dynamic modules support])
361 OPTION_DEFAULT_ON([threads],[don't compile with elisp threading support])
363 AC_ARG_WITH([file-notification],[AS_HELP_STRING([--with-file-notification=LIB],
364 [use a file notification library (LIB one of: yes, inotify, kqueue, gfile, w32, no)])],
365 [ case "${withval}" in
366 y | ye | yes ) val=yes ;;
368 i | in | ino | inot | inoti | inotif | inotify ) val=inotify ;;
369 k | kq | kqu | kque | kqueu | kqueue ) val=kqueue ;;
370 g | gf | gfi | gfil | gfile ) val=gfile ;;
371 w | w3 | w32 ) val=w32 ;;
372 * ) AC_MSG_ERROR(['--with-file-notification=$withval' is invalid;
373 this option's value should be 'yes', 'no', 'inotify', 'kqueue', 'gfile' or 'w32'.
374 'yes' is a synonym for 'w32' on MS-Windows, for 'no' on Nextstep,
375 otherwise for the first of 'inotify', 'kqueue' or 'gfile' that is usable.])
378 with_file_notification=$val
380 [with_file_notification=$with_features])
382 OPTION_DEFAULT_OFF([xwidgets],
383 [enable use of some gtk widgets in Emacs buffers (requires gtk3)])
385 ## For the times when you want to build Emacs but don't have
386 ## a suitable makeinfo, and can live without the manuals.
387 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
388 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
390 ## Makefile.in needs the cache file name.
393 ## This is an option because I do not know if all info/man support
394 ## compressed files, nor how to test if they do so.
395 OPTION_DEFAULT_ON([compress-install],
396 [don't compress some files (.el, .info, etc.) when installing. Equivalent to:
397 make GZIP_PROG= install])
399 AC_ARG_WITH(gameuser,dnl
400 [AS_HELP_STRING([--with-gameuser=USER_OR_GROUP],
401 [user for shared game score files.
402 An argument prefixed by ':' specifies a group instead.])])
405 case ${with_gameuser} in
407 yes) gamegroup=games ;;
408 :*) gamegroup=${with_gameuser#:} ;;
409 *) gameuser=${with_gameuser} ;;
412 AC_ARG_WITH([gnustep-conf],dnl
413 [AS_HELP_STRING([--with-gnustep-conf=FILENAME],
414 [name of GNUstep configuration file to use on systems where the command
415 'gnustep-config' does not work; default $GNUSTEP_CONFIG_FILE, or
416 /etc/GNUstep/GNUstep.conf])])
417 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
418 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
419 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
420 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
422 AC_ARG_ENABLE(ns-self-contained,
423 [AS_HELP_STRING([--disable-ns-self-contained],
424 [disable self contained build under NeXTstep])],
425 EN_NS_SELF_CONTAINED=$enableval,
426 EN_NS_SELF_CONTAINED=yes)
429 AC_ARG_ENABLE(locallisppath,
430 [AS_HELP_STRING([--enable-locallisppath=PATH],
431 [directories Emacs should search for lisp files specific
433 if test "${enableval}" = "no"; then
435 elif test "${enableval}" != "yes"; then
436 locallisppath=${enableval} locallisppathset=yes
439 AC_ARG_ENABLE(checking,
440 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
441 [enable expensive run-time checks. With LIST,
442 enable only specific categories of checks.
443 Categories are: all,yes,no.
444 Flags are: stringbytes, stringoverrun, stringfreelist,
445 xmallocoverrun, conslist, glyphs])],
446 [ac_checking_flags="${enableval}"],[])
447 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
448 for check in $ac_checking_flags
451 # these set all the flags to specific states
452 yes) ac_enable_checking=1 ;;
453 no) ac_enable_checking= ;
454 ac_gc_check_stringbytes= ;
455 ac_gc_check_string_overrun= ;
456 ac_gc_check_string_free_list= ;
457 ac_xmalloc_overrun= ;
458 ac_gc_check_cons_list= ;
460 all) ac_enable_checking=1 ;
461 ac_gc_check_stringbytes=1 ;
462 ac_gc_check_string_overrun=1 ;
463 ac_gc_check_string_free_list=1 ;
464 ac_xmalloc_overrun=1 ;
465 ac_gc_check_cons_list=1 ;
467 # these enable particular checks
468 stringbytes) ac_gc_check_stringbytes=1 ;;
469 stringoverrun) ac_gc_check_string_overrun=1 ;;
470 stringfreelist) ac_gc_check_string_free_list=1 ;;
471 xmallocoverrun) ac_xmalloc_overrun=1 ;;
472 conslist) ac_gc_check_cons_list=1 ;;
473 glyphs) ac_glyphs_debug=1 ;;
474 *) AC_MSG_ERROR(unknown check category $check) ;;
479 if test x$ac_enable_checking != x ; then
480 AC_DEFINE(ENABLE_CHECKING, 1,
481 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
483 if test x$ac_gc_check_stringbytes != x ; then
484 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
485 [Define this temporarily to hunt a bug. If defined, the size of
486 strings is redundantly recorded in sdata structures so that it can
487 be compared to the sizes recorded in Lisp strings.])
489 if test x$ac_gc_check_string_overrun != x ; then
490 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
491 [Define this to check for short string overrun.])
493 if test x$ac_gc_check_string_free_list != x ; then
494 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
495 [Define this to check the string free list.])
497 if test x$ac_xmalloc_overrun != x ; then
498 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
499 [Define this to check for malloc buffer overrun.])
501 if test x$ac_gc_check_cons_list != x ; then
502 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
503 [Define this to check for errors in cons list.])
505 if test x$ac_glyphs_debug != x ; then
506 AC_DEFINE(GLYPH_DEBUG, 1,
507 [Define this to enable glyphs debugging code.])
510 dnl The name of this option is unfortunate. It predates, and has no
511 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
512 dnl Actually, it stops it working.
513 dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
514 AC_ARG_ENABLE(profiling,
515 [AS_HELP_STRING([--enable-profiling],
516 [build emacs with low-level, gprof profiling support.
517 Mainly useful for debugging Emacs itself. May not work on
518 all platforms. Stops profiler.el working.])],
519 [ac_enable_profiling="${enableval}"],[])
520 if test x$ac_enable_profiling != x ; then
521 PROFILING_CFLAGS="-DPROFILING=1 -pg"
525 AC_SUBST(PROFILING_CFLAGS)
527 AC_ARG_ENABLE(autodepend,
528 [AS_HELP_STRING([--enable-autodepend],
529 [automatically generate dependencies to .h-files.
530 Requires gcc, enabled if found.])],
531 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
533 AC_ARG_ENABLE(gtk-deprecation-warnings,
534 [AS_HELP_STRING([--enable-gtk-deprecation-warnings],
535 [Show Gtk+/Gdk deprecation warnings for Gtk+ >= 3.0])],
536 [ac_enable_gtk_deprecation_warnings="${enableval}"],[])
539 AC_ARG_ENABLE([build-details],
540 [AS_HELP_STRING([--disable-build-details],
541 [Make the build more deterministic by omitting host
542 names, time stamps, etc. from the output.])],
543 [test "$enableval" = no && BUILD_DETAILS=--no-build-details])
544 AC_SUBST([BUILD_DETAILS])
546 dnl This used to use changequote, but, apart from 'changequote is evil'
547 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
548 dnl the great gob of text. Thus it's not processed for possible expansion.
549 dnl Just make sure the brackets remain balanced.
551 dnl Since Emacs can't find matching pairs of quotes, boundaries are
552 dnl indicated by comments.
556 ### If you add support for a new configuration, add code to this
557 ### switch statement to recognize your configuration name and select
558 ### the appropriate opsys.
560 ### As far as handling version numbers on operating systems is
561 ### concerned, make sure things will fail in a fixable way. If
562 ### /etc/MACHINES doesn't say anything about version numbers, be
563 ### prepared to handle anything reasonably. If version numbers
564 ### matter, be sure /etc/MACHINES says something about it.
567 case "${canonical}" in
569 ## GNU/Linux and similar ports
584 ## FreeBSD kernel + glibc based userland
595 *-*-openbsd* | *-*-mirbsd* )
599 ## Apple Darwin / macOS
601 case "${canonical}" in
602 *-apple-darwin[0-9].*) unported=yes ;;
603 i[3456]86-* | x86_64-* ) ;;
607 ## FIXME: Find a way to use Fink if available (Bug#11507).
610 ## Chromium Native Client
620 ## HP 9000 series 700 and 800, running HP/UX
624 hppa*-hp-hpux1[1-9]* )
626 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
630 rs6000-ibm-aix4.[23]* )
633 powerpc-ibm-aix4.[23]* )
636 rs6000-ibm-aix[56]* )
639 powerpc-ibm-aix[5-9]* | powerpc-ibm-aix[1-9][0-9]* )
645 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
646 | x86_64-*-solaris2* | x86_64-*-sunos5*)
647 case "${canonical}" in
649 amd64-*-*|x86_64-*-*) ;;
653 case "${canonical}" in
654 *-sunos5.[1-9][0-9]* | *-solaris2.[1-9][0-9]* )
656 emacs_check_sunpro_c=yes
658 *-sunos5.[1-5]* | *-solaris2.[1-5]* ) unported=yes ;;
659 ## Note that Emacs 23.1's NEWS said the following would be dropped.
660 *-sunos5.6* | *-solaris2.6* )
664 ## 5.7 EOL Aug 2008, 5.8 EOL Mar 2012.
665 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
667 emacs_check_sunpro_c=yes
670 ## Watch out for a compiler that we know will not work.
671 case "${canonical}" in
672 *-solaris* | *-sunos5* )
673 if [ "x$CC" = x/usr/ucb/cc ]; then
674 ## /usr/ucb/cc doesn't work;
675 ## we should find some other compiler that does work.
683 ## Intel 386 machines where we don't care about the manufacturer.
685 case "${canonical}" in
686 *-darwin* ) opsys=darwin ;;
689 # MinGW overrides and adds some system headers in nt/inc.
690 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
692 *-sysv4.2uw* ) opsys=unixware ;;
693 *-sysv5uw* ) opsys=unixware ;;
694 *-sysv5OpenUNIX* ) opsys=unixware ;;
695 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
701 case "${canonical}" in
704 # MinGW overrides and adds some system headers in nt/inc.
705 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
707 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
716 ### If the code above didn't choose an operating system, just choose
717 ### an operating system based on the configuration name. You really
718 ### only want to use this when you have no idea what the right
719 ### operating system is; if you know what operating systems a machine
720 ### runs, it's cleaner to make it explicit in the case statement
722 if test x"${opsys}" = x; then
723 case "${canonical}" in
724 *-gnu* ) opsys=gnu ;;
734 if test $unported = yes; then
735 AC_MSG_ERROR([Emacs does not support '${canonical}' systems.
736 If you think it should, please send a report to ${PACKAGE_BUGREPORT}.
737 Check 'etc/MACHINES' for recognized configuration names.])
740 #### Choose a compiler.
742 dnl Don't bother to test for C89.
743 AC_DEFUN([_AC_PROG_CC_C89], [$2])
745 dnl Sets GCC=yes if using gcc.
746 AC_PROG_CC([gcc cc cl clang "$XCRUN gcc" "$XCRUN clang"])
747 if test -n "$XCRUN"; then
748 AC_CHECK_PROGS(AR, [ar "$XCRUN ar"])
749 test -n "$AR" && export AR
752 dnl Emacs needs C99 or later.
757 if test x$GCC = xyes; then
758 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
761 # Avoid gnulib's tests for -lcrypto, so that there's no static dependency on it.
762 AC_DEFUN([gl_CRYPTO_CHECK])
763 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
764 # as we don't use them.
765 AC_DEFUN([gl_FCNTL_O_FLAGS])
766 # Avoid gnulib's test for pthread_sigmask.
768 for func in $ac_func_list; do
769 test $func = pthread_sigmask || AS_VAR_APPEND([funcs], [" $func"])
772 # Use the system putenv even if it lacks GNU features, as we don't need them,
773 # and the gnulib replacement runs afoul of a FreeBSD 10.1 bug; see Bug#19874.
774 AC_CHECK_FUNCS_ONCE([putenv])
775 AC_DEFUN([gl_FUNC_PUTENV],
776 [test "$ac_cv_func_putenv" = yes || REPLACE_PUTENV=1])
777 # Emacs does not use the wchar or wctype-h modules.
778 AC_DEFUN([gt_TYPE_WINT_T],
779 [GNULIB_OVERRIDES_WINT_T=0
780 AC_SUBST([GNULIB_OVERRIDES_WINT_T])])
782 # Initialize gnulib right after choosing the compiler.
783 dnl Amongst other things, this sets AR and ARFLAGS.
786 if test "$ac_test_CFLAGS" != set; then
787 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
788 # if -g3 works and the user does not specify CFLAGS.
789 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
792 emacs_g3_CFLAGS='-g3';;
794 emacs_g3_CFLAGS='-g3 -O2';;
798 if test -n "$emacs_g3_CFLAGS"; then
799 emacs_save_CFLAGS=$CFLAGS
800 CFLAGS=$emacs_g3_CFLAGS
801 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
802 [emacs_cv_prog_cc_g3],
803 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
804 [emacs_cv_prog_cc_g3=yes],
805 [emacs_cv_prog_cc_g3=no])])
806 if test $emacs_cv_prog_cc_g3 != yes; then
807 CFLAGS=$emacs_save_CFLAGS
809 if test $opsys = mingw32; then
810 CFLAGS="$CFLAGS -gdwarf-2"
817 # No optimization flag was inferred for this non-GCC compiler.
818 # Try -O. This is needed for xlc on AIX; see Bug#14258.
819 emacs_save_CFLAGS=$CFLAGS
820 test -z "$CFLAGS" || CFLAGS="$CFLAGS "
822 AC_CACHE_CHECK([whether $CC accepts -O],
823 [emacs_cv_prog_cc_o],
824 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
825 [emacs_cv_prog_cc_o=yes],
826 [emacs_cv_prog_cc_o=no])])
827 if test $emacs_cv_prog_cc_o != yes; then
828 CFLAGS=$emacs_save_CFLAGS
833 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
834 # ---------------------------------------------------------------------------
835 # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
836 # Otherwise, run RUN-IF-NOT-FOUND.
837 AC_DEFUN([gl_GCC_VERSION_IFELSE],
841 #if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
844 # error "your version of gcc is older than $1.$2"
851 AC_ARG_ENABLE([gcc-warnings],
852 [AS_HELP_STRING([--enable-gcc-warnings@<:@=TYPE@:>@],
853 [control generation of GCC warnings. The TYPE 'yes'
854 means to fail if any warnings are issued; 'warn-only'
855 means issue warnings without failing (default for
856 developer builds); 'no' means disable warnings
857 (default for non-developer builds).])],
860 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
862 gl_gcc_warnings=$enableval],
863 [# By default, use 'warn-only' if it looks like the invoker of 'configure'
864 # is a developer as opposed to a builder. This is most likely true
865 # if GCC is recent enough and there is a .git directory or file;
866 # however, if there is also a .tarball-version file it is probably
867 # just a release imported into Git for patch management.
869 if test -e "$srcdir"/.git && test ! -f "$srcdir"/.tarball-version; then
870 gl_GCC_VERSION_IFELSE([5], [3], [gl_gcc_warnings=warn-only])
873 AC_ARG_ENABLE([check-lisp-object-type],
874 [AS_HELP_STRING([--enable-check-lisp-object-type],
875 [Enable compile-time checks for the Lisp_Object data type,
876 which can catch some bugs during development.
877 The default is "no" if --enable-gcc-warnings is "no".])])
878 if test "${enable_check_lisp_object_type-$gl_gcc_warnings}" != "no"; then
879 AC_DEFINE([CHECK_LISP_OBJECT_TYPE], 1,
880 [Define to enable compile-time checks for the Lisp_Object data type.])
883 # clang is unduly picky about some things.
884 AC_CACHE_CHECK([whether the compiler is clang], [emacs_cv_clang],
891 [emacs_cv_clang=yes],
892 [emacs_cv_clang=no])])
894 # When compiling with GCC, prefer -isystem to -I when including system
895 # include files, to avoid generating useless diagnostics for the files.
896 AS_IF([test $gl_gcc_warnings = no],
899 AS_IF([test "$emacs_cv_clang" = yes],
901 # Turn off some warnings if supported.
902 gl_WARN_ADD([-Wno-switch])
903 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
904 gl_WARN_ADD([-Wno-pointer-sign])
905 gl_WARN_ADD([-Wno-string-plus-int])
906 gl_WARN_ADD([-Wno-unknown-attributes])
911 # This, $nw, is the list of warnings we disable.
914 case $with_x_toolkit in
915 lucid | athena | motif)
916 # Old toolkits mishandle 'const'.
917 nw="$nw -Wwrite-strings"
920 AS_IF([test $gl_gcc_warnings = yes],
921 [gl_WARN_ADD([-Werror], [WERROR_CFLAGS])])
922 AC_SUBST([WERROR_CFLAGS])
924 nw="$nw -Wduplicated-branches" # Too many false alarms
925 nw="$nw -Wformat-overflow=2" # False alarms due to GCC bug 80776
926 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
927 nw="$nw -Woverlength-strings" # Not a problem these days
928 nw="$nw -Wformat-nonliteral" # we do this a lot
929 nw="$nw -Wvla" # Emacs uses <vla.h>.
930 nw="$nw -Wswitch-default" # Too many warnings for now
931 nw="$nw -Wunused-const-variable=2" # lisp.h declares const objects.
932 nw="$nw -Winline" # OK to ignore 'inline'
933 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
934 # signed overflow has undefined behavior
935 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
936 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
937 nw="$nw -Wbad-function-cast" # These casts are no worse than others.
939 # Emacs doesn't care about shadowing; see
940 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
943 # Emacs's use of alloca inhibits protecting the stack.
944 nw="$nw -Wstack-protector"
946 # Emacs's use of partly-const functions such as Fgnutls_available_p
947 # make this option problematic.
948 nw="$nw -Wsuggest-attribute=const"
950 # Emacs's use of partly-pure functions such as CHECK_TYPE make this
951 # option problematic.
952 nw="$nw -Wsuggest-attribute=pure"
954 # This part is merely for shortening the command line,
955 # since -Wall implies -Wswitch.
958 # This part is merely for shortening the command line,
959 # since -Wno-FOO needs to be added below regardless.
960 nw="$nw -Wmissing-field-initializers"
961 nw="$nw -Wtype-limits"
962 nw="$nw -Wunused-parameter"
964 if test $emacs_cv_clang = yes; then
965 nw="$nw -Wcast-align"
966 nw="$nw -Wdouble-promotion"
969 # This causes too much noise in the MinGW build
970 if test $opsys = mingw32; then
971 nw="$nw -Wpointer-sign"
974 gl_MANYWARN_ALL_GCC([ws])
975 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
979 gl_WARN_ADD([-Wredundant-decls]) # Prefer this, as we don't use Bison.
980 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
981 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
982 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
983 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
984 gl_WARN_ADD([-Wno-format-nonliteral])
986 # More things that clang is unduly picky about.
987 if test $emacs_cv_clang = yes; then
988 gl_WARN_ADD([-Wno-tautological-compare])
989 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
992 # This causes too much noise in the MinGW build
993 if test $opsys = mingw32; then
994 gl_WARN_ADD([-Wno-pointer-sign])
997 AC_DEFINE([GCC_LINT], [1], [Define to 1 if --enable-gcc-warnings.])
998 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
999 AH_VERBATIM([GNULIB_PORTCHECK_FORTIFY_SOURCE],
1000 [/* Enable compile-time and run-time bounds-checking, and some warnings,
1001 without upsetting glibc 2.15+. */
1002 #if (defined GNULIB_PORTCHECK && !defined _FORTIFY_SOURCE \
1003 && defined __OPTIMIZE__ && __OPTIMIZE__)
1004 # define _FORTIFY_SOURCE 2
1008 # We use a slightly smaller set of warning options for lib/.
1009 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
1011 nw="$nw -Wunused-macros"
1013 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
1014 AC_SUBST([GNULIB_WARN_CFLAGS])
1024 AC_ARG_ENABLE(link-time-optimization,
1025 [AS_HELP_STRING([--enable-link-time-optimization],
1026 [build emacs with link-time optimization.
1027 This requires GCC 4.5.0 or later, or clang.
1028 (Note that clang support is experimental - see INSTALL.)
1029 It also makes Emacs harder to debug, and when we tried it
1030 with GCC 4.9.0 x86-64 it made Emacs slower, so it's not
1031 recommended for typical use.])],
1032 if test "${enableval}" != "no"; then
1034 if test $emacs_cv_clang = yes; then
1035 AC_MSG_CHECKING([whether link-time optimization is supported by clang])
1036 GOLD_PLUGIN=`$CC -print-file-name=LLVMgold.so 2>/dev/null`
1037 if test -x "$GOLD_PLUGIN"; then
1040 elif test x$GCC = xyes; then
1041 AC_MSG_CHECKING([whether link-time optimization is supported by gcc])
1042 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
1043 if test x$CPUS != x; then
1049 AC_MSG_ERROR([Link-time optimization is not supported with your compiler.])
1051 if test -z "$LTO"; then
1055 CFLAGS="$CFLAGS $LTO"
1056 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1057 [ac_lto_supported=yes], [ac_lto_supported=no])
1058 CFLAGS="$old_CFLAGS"
1060 AC_MSG_RESULT([$ac_lto_supported])
1061 if test "$ac_lto_supported" = "yes"; then
1062 CFLAGS="$CFLAGS $LTO"
1063 if test x$emacs_cv_clang = xyes; then
1064 AC_MSG_WARN([Please read INSTALL before using link-time optimization with clang])
1065 # WARNING: 'ar --plugin ...' doesn't work without
1066 # command, so plugin name is appended to ARFLAGS.
1067 ARFLAGS="cru --plugin $GOLD_PLUGIN"
1068 RANLIB="$RANLIB --plugin $GOLD_PLUGIN"
1070 dnl The following is needed for GCC 4.9.0. The GCC 4.9.0 release notes
1071 dnl suggest that instead of -ffat-lto-objects we should use gcc-ar and
1072 dnl gcc-ranlib in place of ar and ranlib, but gcc-ar makes /usr/bin/ar
1073 dnl dump core on Fedora 20, so play it safe for now.
1074 gl_COMPILER_OPTION_IF([-ffat-lto-objects],
1075 [CFLAGS="$CFLAGS -ffat-lto-objects"])
1081 dnl Automake replacements.
1082 AC_DEFUN([AM_CONDITIONAL],
1086 dnl Prefer silent make output. For verbose output, use
1087 dnl 'configure --disable-silent-rules' or 'make V=1' .
1088 dnl This code is adapted from Automake.
1089 dnl Although it can be simplified now that GNU Make is assumed,
1090 dnl the simplification hasn't been done yet.
1091 AC_ARG_ENABLE([silent-rules],
1093 [--disable-silent-rules],
1094 [verbose build output (undo: "make V=0")])])
1095 if test "$enable_silent_rules" = no; then
1096 AM_DEFAULT_VERBOSITY=1
1098 AM_DEFAULT_VERBOSITY=0
1101 AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
1103 AC_SUBST([AM_DEFAULT_V])
1104 AC_SUBST([AM_DEFAULT_VERBOSITY])
1106 dnl Some other nice autoconf tests.
1108 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
1110 dnl if test "x$RANLIB" = x; then
1115 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
1116 dnl can be made to directories. This is not relevant for our usage, and
1117 dnl excludes some cases that work fine for us. Eg MS Windows or files
1118 dnl hosted on AFS, both examples where simple links work, but links to
1119 dnl directories fail. We use a cut-down version instead.
1122 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
1123 rm -f conf$$ conf$$.file
1125 LN_S_FILEONLY='cp -p'
1127 dnl On MinGW, ensure we will call the MSYS /bin/ln.exe, not some
1128 dnl random program in the current directory.
1129 if (echo >conf$$.file) 2>/dev/null; then
1130 if ln -s conf$$.file conf$$ 2>/dev/null; then
1131 if test "$opsys" = "mingw32"; then
1132 LN_S_FILEONLY='/bin/ln -s'
1134 LN_S_FILEONLY='ln -s'
1136 elif ln conf$$.file conf$$ 2>/dev/null; then
1137 if test "$opsys" = "mingw32"; then
1138 LN_S_FILEONLY=/bin/ln
1145 rm -f conf$$ conf$$.file
1147 if test "$LN_S_FILEONLY" = "ln -s"; then
1148 AC_MSG_RESULT([yes])
1150 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
1153 AC_SUBST(LN_S_FILEONLY)
1156 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
1157 dnl doesn't support links to directories, as in "ln file dir". But that
1158 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
1159 dnl executables at "make install" time.
1160 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
1161 dnl for more details.
1162 if test "$opsys" = "mingw32"; then
1166 dnl On some Debian versions, "install-info" prints irritating messages
1167 dnl "This is not dpkg install-info anymore, but GNU install-info"
1168 dnl if called via an absolute file name.
1169 dnl Use the entirely-identical-but-quieter ginstall-info instead if present.
1170 dnl Sadly some people may have an old ginstall-info installed on
1171 dnl non-Debian systems, so we can't use this.
1172 dnl AC_PATH_PROGS(INSTALL_INFO, [ginstall-info install-info], :,
1173 dnl $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1175 AC_PATH_PROG(INSTALL_INFO, install-info, :,
1176 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1177 dnl Don't use GZIP, which is used by gzip for additional parameters.
1178 AC_PATH_PROG(GZIP_PROG, gzip)
1180 test $with_compress_install != yes && test -n "$GZIP_PROG" && \
1181 GZIP_PROG=" # $GZIP_PROG # (disabled by configure --without-compress-install)"
1183 AC_CACHE_CHECK([for 'find' args to delete a file],
1184 [emacs_cv_find_delete],
1185 [if touch conftest.tmp && find conftest.tmp -delete 2>/dev/null &&
1186 test ! -f conftest.tmp
1187 then emacs_cv_find_delete="-delete"
1188 else emacs_cv_find_delete="-exec rm -f {} ';'"
1190 FIND_DELETE=$emacs_cv_find_delete
1191 AC_SUBST([FIND_DELETE])
1195 if test $opsys = gnu-linux; then
1196 if test "${SETFATTR+set}" != set; then
1197 AC_CACHE_CHECK([for setfattr],
1198 [emacs_cv_prog_setfattr],
1200 if (setfattr -n user.pax.flags conftest.tmp) >/dev/null 2>&1; then
1201 emacs_cv_prog_setfattr=yes
1203 emacs_cv_prog_setfattr=no
1205 if test "$emacs_cv_prog_setfattr" = yes; then
1206 PAXCTL_notdumped='$(SETFATTR) -n user.pax.flags -v er'
1212 AC_SUBST([SETFATTR])
1215 case $opsys,$PAXCTL_notdumped in
1216 gnu-linux, | netbsd,)
1217 AC_PATH_PROG([PAXCTL], [paxctl], [],
1218 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
1219 if test -n "$PAXCTL"; then
1220 if test "$opsys" = netbsd; then
1221 PAXCTL_dumped='$(PAXCTL) +a'
1222 PAXCTL_notdumped=$PAXCTL_dumped
1224 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
1225 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1226 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then
1227 AC_MSG_RESULT([yes])
1232 if test -n "$PAXCTL"; then
1233 PAXCTL_dumped='$(PAXCTL) -zex'
1234 PAXCTL_notdumped='$(PAXCTL) -r'
1239 AC_SUBST([PAXCTL_dumped])
1240 AC_SUBST([PAXCTL_notdumped])
1242 ## Require makeinfo >= 4.13 (last of the 4.x series) to build the manuals.
1243 if test "${MAKEINFO:=makeinfo}" != "no"; then
1244 case `($MAKEINFO --version) 2>/dev/null` in
1245 *' (GNU texinfo) '4.1[[3-9]]* | \
1246 *' (GNU texinfo) '[[5-9]]* | \
1247 *' (GNU texinfo) '[[1-9][0-9]]* ) ;;
1252 ## Makeinfo is unusual. For a released Emacs, the manuals are
1253 ## pre-built, and not deleted by the normal clean rules. makeinfo is
1254 ## therefore in the category of "special tools" not normally required, which
1255 ## configure does not have to check for (eg autoconf itself).
1256 ## In a repository checkout on the other hand, the manuals are not included.
1257 ## So makeinfo is a requirement to build from the repository, and configure
1258 ## should test for it as it does for any other build requirement.
1259 ## We use the presence of $srcdir/info/emacs to distinguish a release,
1260 ## with pre-built manuals, from a repository checkout.
1263 if test "$MAKEINFO" = "no"; then
1265 if test "x${with_makeinfo}" = "xno"; then
1267 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
1268 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.13, and your
1269 source tree does not seem to have pre-built manuals in the 'info' directory.
1270 Either install a suitable version of makeinfo, or re-run configure
1271 with the '--without-makeinfo' option to build without the manuals.] )
1274 AC_SUBST([MAKEINFO])
1275 AC_SUBST(HAVE_MAKEINFO)
1277 if test $opsys = mingw32; then
1278 DOCMISC_W32=efaq-w32
1282 AC_SUBST(DOCMISC_W32)
1284 dnl Add our options to ac_link now, after it is set up.
1286 if test x$GCC = xyes; then
1287 test "x$GCC_LINK_TEST_OPTIONS" != x && \
1288 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1290 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
1291 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1294 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
1295 dnl If we can link with the flag, it shouldn't do any harm anyhow.
1296 dnl Treat GCC specially since it just gives a non-fatal 'unrecognized option'
1297 dnl if not built to support GNU ld.
1299 dnl For a long time, -znocombreloc was added to LDFLAGS rather than
1300 dnl LD_SWITCH_SYSTEM_TEMACS. That is:
1301 dnl * inappropriate, as LDFLAGS is a user option but this is essential.
1302 dnl Eg "make LDFLAGS=... all" could run into problems,
1303 dnl http://bugs.debian.org/684788
1304 dnl * unnecessary, since temacs is the only thing that actually needs it.
1305 dnl Indeed this is where it was originally, prior to:
1306 dnl http://lists.gnu.org/archive/html/emacs-pretest-bug/2004-03/msg00170.html
1307 late_LDFLAGS="$LDFLAGS"
1308 if test x$GCC = xyes; then
1309 LDFLAGS_NOCOMBRELOC="-Wl,-znocombreloc"
1311 LDFLAGS_NOCOMBRELOC="-znocombreloc"
1314 LDFLAGS="$LDFLAGS $LDFLAGS_NOCOMBRELOC"
1316 AC_MSG_CHECKING([for -znocombreloc])
1317 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1318 [AC_MSG_RESULT(yes)],
1319 LDFLAGS_NOCOMBRELOC=
1320 [AC_MSG_RESULT(no)])
1322 LDFLAGS="$late_LDFLAGS"
1324 AC_CACHE_CHECK([whether addresses are sanitized],
1325 [emacs_cv_sanitize_address],
1328 [[#ifndef __has_feature
1329 #define __has_feature(f) 0
1331 #if defined __SANITIZE_ADDRESS__ || __has_feature (address_sanitizer)
1333 error "Addresses are not sanitized.";
1336 [emacs_cv_sanitize_address=yes],
1337 [emacs_cv_sanitize_address=no])])
1339 dnl The function dump-emacs will not be defined and temacs will do
1340 dnl (load "loadup") automatically unless told otherwise.
1341 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
1343 nacl) CANNOT_DUMP=yes ;;
1346 if test "$CANNOT_DUMP" = "yes"; then
1347 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1348 elif test "$emacs_cv_sanitize_address" = yes; then
1349 AC_MSG_WARN([[Addresses are sanitized; suggest CANNOT_DUMP=yes]])
1352 AC_SUBST(CANNOT_DUMP)
1355 UNEXEC_OBJ=unexelf.o
1357 # MSDOS uses unexcoff.o
1359 UNEXEC_OBJ=unexaix.o
1365 UNEXEC_OBJ=unexmacosx.o
1368 UNEXEC_OBJ=unexhp9k800.o
1371 UNEXEC_OBJ=unexw32.o
1374 # Use the Solaris dldump() function, called from unexsol.c, to dump
1375 # emacs, instead of the generic ELF dump code found in unexelf.c.
1376 # The resulting binary has a complete symbol table, and is better
1377 # for debugging and other observability tools (debuggers, pstack, etc).
1379 # If you encounter a problem using dldump(), please consider sending
1380 # a message to the OpenSolaris tools-linking mailing list:
1381 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1383 # It is likely that dldump() works with older Solaris too, but this has
1384 # not been tested, so for now this change is for Solaris 10 or newer.
1385 UNEXEC_OBJ=unexsol.o
1388 test "$CANNOT_DUMP" = "yes" && UNEXEC_OBJ=
1393 ## Let 'ld' find image libs and similar things in /usr/local/lib.
1394 ## The system compiler, GCC, has apparently been modified to not
1395 ## look there, contrary to what a stock GCC would do.
1396 ### It's not our place to do this. See bug#10313#17.
1397 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1402 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1403 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1407 ### It's not our place to do this. See bug#10313#17.
1408 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1413 ## Han Boetes <han@boetes.org> says this is necessary,
1414 ## otherwise Emacs dumps core on elf systems.
1415 LD_SWITCH_SYSTEM="-Z"
1418 AC_SUBST(LD_SWITCH_SYSTEM)
1420 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1422 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1423 ## which has not been defined yet. When this was handled with cpp,
1424 ## it was expanded to null when configure sourced the s/*.h file.
1425 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1426 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1427 ## (or somesuch), but because it is supposed to go at the _front_
1428 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1429 ## Compare with the gnu-linux case below, which added to the end
1430 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1431 ## LD_SWITCH_SYSTEM_TEMACS.
1434 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1441 AC_CHECK_DECL([__ELF__])
1442 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1443 ## With ELF, make sure that all common symbols get allocated to in the
1444 ## data section. Otherwise, the dump of temacs may miss variables in
1445 ## the shared library that have been initialized. For example, with
1446 ## GNU libc, __malloc_initialized would normally be resolved to the
1447 ## shared library's .bss section, which is fatal.
1448 if test "x$GCC" = "xyes"; then
1449 C_SWITCH_MACHINE="-fno-common"
1451 AC_MSG_ERROR([Non-GCC compilers are not supported.])
1454 dnl This was the unexalpha.c case. Removed in 24.1, 2010-07-24,
1455 dnl albeit under the mistaken assumption that said file
1456 dnl was no longer used.
1457 AC_MSG_ERROR([Non-ELF systems are not supported since Emacs 24.1.])
1461 AC_SUBST(C_SWITCH_MACHINE)
1463 AC_SUBST(UNEXEC_OBJ)
1466 ## Some programs in src produce warnings saying certain subprograms
1467 ## are too complex and need a MAXMEM value greater than 2000 for
1468 ## additional optimization. --nils@exp-math.uni-essen.de
1469 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1470 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1471 if test "$opsys" = "mingw32"; then
1472 case "$canonical" in
1473 x86_64-*-mingw*) C_SWITCH_SYSTEM="-mtune=generic" ;;
1474 *) C_SWITCH_SYSTEM="-mtune=pentium4" ;;
1477 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1478 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1479 AC_SUBST(C_SWITCH_SYSTEM)
1484 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1485 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1487 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1489 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1491 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1493 ## Motif needs -lgen.
1494 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1497 AC_SUBST(LIBS_SYSTEM)
1499 ### Make sure subsequent tests use flags consistent with the build flags.
1501 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1502 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1504 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1507 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C99 or better.
1508 AC_DEFUN([AC_TYPE_SIZE_T])
1509 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1510 AC_DEFUN([AC_TYPE_UID_T])
1512 # sqrt and other floating-point functions such as fmod and frexp
1513 # are found in -lm on many systems.
1515 AC_SEARCH_LIBS([sqrt], [m])
1516 if test "X$LIBS" = "X$OLD_LIBS"; then
1519 LIB_MATH=$ac_cv_search_sqrt
1523 dnl Current possibilities handled by sed (aix4-2 -> aix,
1524 dnl gnu-linux -> gnu/linux, etc.):
1525 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux.
1526 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1527 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1534 ## Adding -lm confuses the dynamic linker, so omit it.
1537 freebsd | dragonfly )
1538 SYSTEM_TYPE=berkeley-unix
1540 gnu-linux | gnu-kfreebsd )
1542 hpux10-20 | hpux11 )
1546 SYSTEM_TYPE=windows-nt
1548 dnl NB this may be adjusted below.
1550 SYSTEM_TYPE=berkeley-unix
1554 SYSTEM_TYPE=usg-unix-v
1560 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1561 [The type of system you are compiling for; sets 'system-type'.])
1562 AC_SUBST([SYSTEM_TYPE])
1565 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1566 pre_PKG_CONFIG_LIBS=$LIBS
1568 PKG_PROG_PKG_CONFIG(0.9.0)
1570 dnl EMACS_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4)
1571 dnl acts like PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4,
1572 dnl HAVE_GSTUFF=yes, HAVE_GSTUFF=no) -- see pkg-config man page --
1573 dnl except that it postprocesses CFLAGS as needed for --enable-gcc-warnings.
1574 dnl EMACS_CHECK_MODULES accepts optional 3rd and 4th arguments that
1575 dnl can take the place of the default HAVE_GSTUFF=yes and HAVE_GSTUFF=no
1577 AC_DEFUN([EMACS_CHECK_MODULES],
1578 [PKG_CHECK_MODULES([$1], [$2],
1579 [$1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1580 m4_default([$3], [HAVE_$1=yes])],
1581 [m4_default([$4], [HAVE_$1=no])])])
1584 if test "${with_sound}" != "no"; then
1585 # Sound support for GNU/Linux, the free BSDs, MinGW, and Cygwin.
1586 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h mmsystem.h],
1587 have_sound_header=yes, [], [
1589 #define WIN32_LEAN_AND_MEAN
1590 #include <windows.h>
1593 test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
1594 AC_MSG_ERROR([OSS sound support requested but not found.])
1596 if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
1597 # Emulation library used on NetBSD.
1598 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1599 test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
1600 AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
1601 dnl FIXME? If we did find ossaudio, should we set with_sound=bsd-ossaudio?
1602 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1606 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1608 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1609 EMACS_CHECK_MODULES([ALSA], [$ALSA_MODULES])
1610 if test $HAVE_ALSA = yes; then
1611 SAVE_CFLAGS="$CFLAGS"
1613 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1614 LIBS="$ALSA_LIBS $LIBS"
1615 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1616 emacs_alsa_normal=yes,
1617 emacs_alsa_normal=no)
1618 if test "$emacs_alsa_normal" != yes; then
1619 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1620 [[snd_lib_error_set_handler (0);]])],
1621 emacs_alsa_subdir=yes,
1622 emacs_alsa_subdir=no)
1623 if test "$emacs_alsa_subdir" != yes; then
1624 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1626 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1629 CFLAGS="$SAVE_CFLAGS"
1631 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1632 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1633 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1634 elif test "${with_sound}" = "alsa"; then
1635 AC_MSG_ERROR([ALSA sound support requested but not found.])
1637 fi dnl with_sound = alsa|yes
1639 dnl Define HAVE_SOUND if we have sound support. We know it works and
1640 dnl compiles only on the specified platforms. For others, it
1641 dnl probably doesn't make sense to try.
1642 dnl FIXME So surely we should bypass this whole section if not using
1643 dnl one of these platforms?
1644 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1646 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1647 dnl Adjust the --with-sound help text if you change this.
1648 gnu-linux|freebsd|netbsd|mingw32|cygwin)
1649 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1655 AC_SUBST(CFLAGS_SOUND)
1658 dnl checks for header files
1659 AC_CHECK_HEADERS_ONCE(
1666 sys/utsname.h pwd.h utmp.h util.h sys/prctl.h)
1668 AC_CACHE_CHECK([for ADDR_NO_RANDOMIZE],
1669 [emacs_cv_personality_addr_no_randomize],
1671 [AC_LANG_PROGRAM([[#include <sys/personality.h>]],
1672 [[personality (personality (0xffffffff)
1673 | ADDR_NO_RANDOMIZE)]])],
1674 [emacs_cv_personality_addr_no_randomize=yes],
1675 [emacs_cv_personality_addr_no_randomize=no])])
1676 if test $emacs_cv_personality_addr_no_randomize = yes; then
1677 AC_DEFINE([HAVE_PERSONALITY_ADDR_NO_RANDOMIZE], [1],
1678 [Define to 1 if personality flag ADDR_NO_RANDOMIZE exists.])
1681 # Note that Solaris has sys/sysinfo.h which defines struct
1682 # sysinfo as well. To make sure that we're using GNU/Linux
1683 # sysinfo, we explicitly set one of its fields.
1684 if test "$ac_cv_header_sys_sysinfo_h" = yes; then
1685 AC_MSG_CHECKING([if Linux sysinfo may be used])
1686 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1687 [[struct sysinfo si;
1690 emacs_cv_linux_sysinfo=yes, emacs_cv_linux_sysinfo=no)
1691 AC_MSG_RESULT($emacs_cv_linux_sysinfo)
1692 if test $emacs_cv_linux_sysinfo = yes; then
1693 AC_DEFINE([HAVE_LINUX_SYSINFO], 1, [Define to 1 if you have Linux sysinfo function.])
1694 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1695 [[struct sysinfo si; return si.mem_unit]])],
1696 AC_DEFINE(LINUX_SYSINFO_UNIT, 1,
1697 [Define to 1 if Linux sysinfo sizes are in multiples of mem_unit bytes.]))
1701 dnl On Solaris 8 there's a compilation warning for term.h because
1702 dnl it doesn't define 'bool'.
1703 AC_CHECK_HEADERS(term.h, , , -)
1705 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1707 if test $ac_cv_have_decl_sys_siglist != yes; then
1708 # For Tru64, at least:
1709 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1714 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1715 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1716 #if HAVE_SYS_SOCKET_H
1717 #include <sys/socket.h>
1719 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1720 #if HAVE_SYS_SOCKET_H
1721 #include <sys/socket.h>
1723 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1724 #if HAVE_SYS_SOCKET_H
1725 #include <sys/socket.h>
1728 dnl checks for structure members
1729 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1730 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1731 struct ifreq.ifr_addr,
1732 struct ifreq.ifr_addr.sa_len], , ,
1733 [AC_INCLUDES_DEFAULT
1734 #if HAVE_SYS_SOCKET_H
1735 #include <sys/socket.h>
1741 dnl Check for endianness.
1742 dnl AC_C_BIGENDIAN is done by gnulib.
1744 dnl check for Make feature
1747 AUTODEPEND_PARENTS='lib src'
1748 dnl check if we have GCC and autodepend is on.
1749 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1750 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1751 SAVE_CFLAGS="$CFLAGS"
1752 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1753 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1754 CFLAGS="$SAVE_CFLAGS"
1755 test -f deps.d || ac_enable_autodepend=no
1757 AC_MSG_RESULT([$ac_enable_autodepend])
1758 if test $ac_enable_autodepend = yes; then
1762 AC_SUBST(AUTO_DEPEND)
1764 dnl checks for operating system services
1765 AC_SYS_LONG_FILE_NAMES
1767 #### Choose a window system.
1769 ## We leave window_system equal to none if
1770 ## we end up building without one. Any new window system should
1771 ## set window_system to an appropriate value and add objects to
1772 ## window-system-specific substs.
1776 if test "$no_x" != yes; then
1780 LD_SWITCH_X_SITE_RPATH=
1781 if test "${x_libraries}" != NONE; then
1782 if test -n "${x_libraries}"; then
1783 LD_SWITCH_X_SITE=-L`AS_ECHO(["$x_libraries"]) | sed -e 's/:/ -L/g'`
1784 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`
1785 AS_ECHO(["$x_libraries"]) | sed -e 's/:/ -Wl,-rpath,/g'
1788 x_default_search_path=""
1789 x_search_path=${x_libraries}
1790 if test -z "${x_search_path}"; then
1791 x_search_path=/usr/lib
1793 for x_library in `AS_ECHO(["$x_search_path:"]) | \
1794 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1796 ${x_library}/X11/%L/%T/%N%C%S:\
1797 ${x_library}/X11/%l/%T/%N%C%S:\
1798 ${x_library}/X11/%T/%N%C%S:\
1799 ${x_library}/X11/%L/%T/%N%S:\
1800 ${x_library}/X11/%l/%T/%N%S:\
1801 ${x_library}/X11/%T/%N%S"
1802 if test x"${x_default_search_path}" = x; then
1803 x_default_search_path=${x_search_path}
1805 x_default_search_path="${x_search_path}:${x_default_search_path}"
1809 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1811 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1812 C_SWITCH_X_SITE=$isystem`AS_ECHO(["$x_includes"]) | sed -e "s/:/ $isystem/g"`
1815 if test x"${x_includes}" = x; then
1816 bitmapdir=/usr/include/X11/bitmaps
1818 # accumulate include directories that have X11 bitmap subdirectories
1820 for bmd in `AS_ECHO(["$x_includes"]) | sed -e 's/:/ /g'`; do
1821 if test -d "${bmd}/X11/bitmaps"; then
1822 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1824 if test -d "${bmd}/bitmaps"; then
1825 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1828 bitmapdir=${bmd_acc#:}
1831 test "${with_ns}" = maybe && test "${opsys}" != darwin && with_ns=no
1833 NS_GNUSTEP_CONFIG=no
1836 tmp_CPPFLAGS="$CPPFLAGS"
1837 tmp_CFLAGS="$CFLAGS"
1838 CPPFLAGS="$CPPFLAGS -x objective-c"
1839 CFLAGS="$CFLAGS -x objective-c"
1842 if test "${with_ns}" != no; then
1843 if test "${opsys}" = darwin; then
1845 ns_appdir=`pwd`/nextstep/Emacs.app
1846 ns_appbindir=${ns_appdir}/Contents/MacOS
1847 ns_appresdir=${ns_appdir}/Contents/Resources
1848 ns_appsrc=Cocoa/Emacs.base
1849 ns_fontfile=macfont.o
1850 elif flags=$( (gnustep-config --objc-flags) 2>/dev/null); then
1852 NS_GNUSTEP_CONFIG=yes
1853 GNU_OBJC_CFLAGS=$flags
1854 LIBS_GNUSTEP=$(gnustep-config --gui-libs) || exit
1855 elif test -f $GNUSTEP_CONFIG_FILE; then
1857 dnl FIXME sourcing this several times in subshells seems inefficient.
1858 GNUSTEP_SYSTEM_HEADERS=$(
1859 . $GNUSTEP_CONFIG_FILE
1860 AS_ECHO(["$GNUSTEP_SYSTEM_HEADERS"])
1862 GNUSTEP_SYSTEM_LIBRARIES=$(
1863 . $GNUSTEP_CONFIG_FILE
1864 AS_ECHO(["$GNUSTEP_SYSTEM_LIBRARIES"])
1866 dnl I seemed to need these as well with GNUstep-startup 0.25.
1867 GNUSTEP_LOCAL_HEADERS=$(
1868 . $GNUSTEP_CONFIG_FILE
1869 AS_ECHO(["$GNUSTEP_LOCAL_HEADERS"])
1871 GNUSTEP_LOCAL_LIBRARIES=$(
1872 . $GNUSTEP_CONFIG_FILE
1873 AS_ECHO(["$GNUSTEP_LOCAL_LIBRARIES"])
1875 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1876 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1877 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1878 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1879 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1880 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1881 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1882 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1883 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1884 dnl If they had chosen to either define it or not, we could have
1885 dnl just used AC_CHECK_DECL here.
1886 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1887 emacs_cv_objc_exceptions,
1888 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1889 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1893 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1894 if test $emacs_cv_objc_exceptions = yes; then
1895 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1896 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1897 [Define if GNUstep uses ObjC exceptions.])
1898 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1901 if test $NS_IMPL_GNUSTEP = yes; then
1902 ns_appdir=`pwd`/nextstep/Emacs.app
1903 ns_appbindir=${ns_appdir}
1904 ns_appresdir=${ns_appdir}/Resources
1905 ns_appsrc=GNUstep/Emacs.base
1906 ns_fontfile=nsfont.o
1909 dnl This is only used while we test the NS headers, it gets reset below.
1910 CPPFLAGS="$CPPFLAGS $GNU_OBJC_CFLAGS"
1911 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1913 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1914 [AC_MSG_ERROR([The include files (AppKit/AppKit.h etc) that
1915 are required for a Nextstep build are missing or cannot be compiled.
1916 Either fix this, or re-configure with the option '--without-ns'.])])
1919 if test "${NS_IMPL_COCOA}" = "yes"; then
1920 AC_MSG_CHECKING([for Mac OS X 10.6 or newer])
1921 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1923 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1924 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1060
1927 error "Mac OS X 10.6 or newer required";
1931 ns_osx_have_106=yes,
1933 AC_MSG_RESULT([$ns_osx_have_106])
1935 if test $ns_osx_have_106 = no; then
1936 AC_MSG_ERROR([Mac OS X 10.6 or newer is required]);
1941 AC_SUBST(LIBS_GNUSTEP)
1943 INSTALL_ARCH_INDEP_EXTRA=install-etc
1944 ns_self_contained=no
1947 if test "${HAVE_NS}" = yes; then
1948 if test "$with_toolkit_scroll_bars" = "no"; then
1949 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1952 window_system=nextstep
1953 # set up packaging dirs
1954 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1955 ns_self_contained=yes
1956 prefix=${ns_appresdir}
1957 exec_prefix=${ns_appbindir}
1958 dnl This one isn't really used, only archlibdir is.
1959 libexecdir="\${ns_appbindir}/libexec"
1960 archlibdir="\${ns_appbindir}/libexec"
1961 etcdocdir="\${ns_appresdir}/etc"
1962 etcdir="\${ns_appresdir}/etc"
1963 dnl FIXME maybe set datarootdir instead.
1964 dnl That would also get applications, icons, man.
1965 infodir="\${ns_appresdir}/info"
1966 mandir="\${ns_appresdir}/man"
1967 lispdir="\${ns_appresdir}/lisp"
1968 test "$locallisppathset" = no && locallisppath=""
1969 INSTALL_ARCH_INDEP_EXTRA=
1972 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o $ns_fontfile"
1974 CFLAGS="$tmp_CFLAGS"
1975 CPPFLAGS="$tmp_CPPFLAGS"
1976 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1977 AC_SUBST(ns_self_contained)
1979 AC_SUBST(NS_OBJC_OBJ)
1989 if test "${with_w32}" != no; then
1992 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1993 [AC_MSG_ERROR(['--with-w32' was specified, but windows.h
1994 cannot be found.])])
1997 ## Using --with-w32 with MinGW is a no-op, but we allow it.
2000 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
2005 if test "${opsys}" = "mingw32"; then
2006 AC_MSG_CHECKING([whether Windows API headers are recent enough])
2007 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2008 #include <windows.h>
2009 #include <usp10.h>]],
2010 [[PIMAGE_NT_HEADERS pHeader;
2011 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
2012 [emacs_cv_w32api=yes
2015 AC_MSG_RESULT($emacs_cv_w32api)
2016 if test "${emacs_cv_w32api}" = "no"; then
2017 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
2028 if test "${HAVE_W32}" = "yes"; then
2029 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
2030 if test "$with_toolkit_scroll_bars" = "no"; then
2031 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for w32 build.])
2033 AC_CHECK_TOOL(WINDRES, [windres],
2034 [AC_MSG_ERROR([No resource compiler found.])])
2035 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
2036 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
2037 EMACSRES="emacs.res"
2038 case "$canonical" in
2039 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
2040 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
2042 dnl Construct something of the form "24,4,0,0" with 4 components.
2043 comma_version=`echo "${PACKAGE_VERSION}.0.0" | sed -e 's/\./,/g' -e 's/^\([[^,]]*,[[^,]]*,[[^,]]*,[[^,]]*\).*/\1/'`
2045 comma_space_version=`echo "$comma_version" | sed 's/,/, /g'`
2046 AC_SUBST(comma_version)
2047 AC_SUBST(comma_space_version)
2048 AC_CONFIG_FILES([nt/emacs.rc nt/emacsclient.rc])
2049 if test "${opsys}" = "cygwin"; then
2050 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
2051 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
2052 # Tell the linker that emacs.res is an object (which we compile from
2053 # the rc file), not a linker script.
2054 W32_RES_LINK="-Wl,emacs.res"
2056 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
2057 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
2058 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
2059 W32_RES_LINK="\$(EMACSRES)"
2060 CLIENTRES="emacsclient.res"
2061 CLIENTW="emacsclientw\$(EXEEXT)"
2062 FIRSTFILE_OBJ=firstfile.o
2065 LIBS_ECLIENT="-lcomctl32"
2066 LIB_WSOCK32="-lwsock32"
2067 NTLIB="ntlib.$ac_objext"
2068 XARGS_LIMIT="-s 10000"
2074 AC_SUBST(EMACS_MANIFEST)
2077 AC_SUBST(W32_RES_LINK)
2078 AC_SUBST(FIRSTFILE_OBJ)
2081 AC_SUBST(LIBS_ECLIENT)
2082 AC_SUBST(LIB_WSOCK32)
2084 AC_SUBST(XARGS_LIMIT)
2086 if test "${HAVE_W32}" = "yes"; then
2091 ## $window_system is now set to the window system we will
2099 case "${window_system}" in
2104 case "${with_x_toolkit}" in
2105 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
2106 motif ) USE_X_TOOLKIT=MOTIF ;;
2108 term_header=gtkutil.h
2109 dnl Don't set this for GTK. A lot of tests below assumes Xt when
2110 dnl USE_X_TOOLKIT is set.
2111 USE_X_TOOLKIT=none ;;
2112 gtk2 ) with_gtk2=yes
2113 term_header=gtkutil.h
2114 USE_X_TOOLKIT=none ;;
2115 gtk3 ) with_gtk3=yes
2116 term_header=gtkutil.h
2117 USE_X_TOOLKIT=none ;;
2118 no ) USE_X_TOOLKIT=none ;;
2119 dnl If user did not say whether to use a toolkit, make this decision later:
2120 dnl use the toolkit if we have gtk, or X11R5 or newer.
2121 * ) USE_X_TOOLKIT=maybe ;;
2125 term_header=nsterm.h
2128 term_header=w32term.h
2132 if test "$window_system" = none && test "X$with_x" != "Xno"; then
2133 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
2134 if test "$HAVE_XSERVER" = true ||
2135 test -n "$DISPLAY" ||
2137 for emacs_libX11 in /usr/lib/libX11.*; do break; done
2138 test "$emacs_libX11" != '/usr/lib/libX11.*'
2141 AC_MSG_ERROR([You seem to be running X, but no X development libraries
2142 were found. You should install the relevant development files for X
2143 and for the toolkit you want, such as Gtk+ or Motif. Also make
2144 sure you have development files for image handling, i.e.
2145 tiff, gif, jpeg, png and xpm.
2146 If you are sure you want Emacs compiled without X window support, pass
2152 # Does the opsystem file prohibit the use of the GNU malloc?
2153 # Assume not, until told otherwise.
2157 [whether malloc is Doug Lea style],
2158 [emacs_cv_var_doug_lea_malloc],
2159 [emacs_cv_var_doug_lea_malloc=no
2160 dnl Hooks do not work with address sanitization.
2161 if test "$emacs_cv_sanitize_address" != yes; then
2164 [[#include <malloc.h>
2165 static void hook (void) {}]],
2166 [[malloc_set_state (malloc_get_state ());
2167 __after_morecore_hook = hook;
2168 __malloc_initialize_hook = hook;]])],
2169 [emacs_cv_var_doug_lea_malloc=yes])
2171 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
2176 test "$CANNOT_DUMP" = yes ||
2178 ## darwin ld insists on the use of malloc routines in the System framework.
2179 darwin | mingw32 | nacl | sol2-10) ;;
2180 cygwin) hybrid_malloc=yes
2182 *) test "$ac_cv_func_sbrk" = yes && system_malloc=$emacs_cv_sanitize_address;;
2185 if test "${system_malloc}" != yes && test "${doug_lea_malloc}" != yes \
2186 && test "${UNEXEC_OBJ}" = unexelf.o; then
2192 if test "${system_malloc}" = "yes"; then
2193 AC_DEFINE([SYSTEM_MALLOC], 1,
2194 [Define to 1 to use the system memory allocator, even if it is not
2198 (The GNU allocators don't work with this system configuration.)"
2200 elif test "$hybrid_malloc" = yes; then
2201 AC_DEFINE(HYBRID_MALLOC, 1,
2202 [Define to use gmalloc before dumping and the system malloc after.])
2205 GNU_MALLOC_reason=" (only before dumping)"
2206 GMALLOC_OBJ=gmalloc.o
2209 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
2210 VMLIMIT_OBJ=vm-limit.o
2212 AC_CHECK_HEADERS([sys/vlimit.h])
2213 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
2216 [[extern char data_start[]; char ch;]],
2217 [[return data_start < &ch;]])],
2218 [emacs_cv_data_start=yes],
2219 [emacs_cv_data_start=no])])
2220 if test $emacs_cv_data_start = yes; then
2221 AC_DEFINE([HAVE_DATA_START], 1,
2222 [Define to 1 if data_start is the address of the start
2223 of the main data segment.])
2226 AC_SUBST([HYBRID_MALLOC])
2227 AC_SUBST(GMALLOC_OBJ)
2228 AC_SUBST(VMLIMIT_OBJ)
2230 if test "$doug_lea_malloc" = "yes" && test "$hybrid_malloc" != yes; then
2231 if test "$GNU_MALLOC" = yes ; then
2233 (Using Doug Lea's new malloc from the GNU C Library.)"
2235 AC_DEFINE(DOUG_LEA_MALLOC, 1,
2236 [Define to 1 if the system memory allocator is Doug Lea style,
2237 with malloc hooks and malloc_set_state.])
2239 ## Use mmap directly for allocating larger buffers.
2240 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
2241 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
2242 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
2244 mingw32|gnu*) REL_ALLOC=no ;;
2248 if test x"${REL_ALLOC}" = x; then
2249 REL_ALLOC=${GNU_MALLOC}
2252 use_mmap_for_buffers=no
2254 mingw32) use_mmap_for_buffers=yes ;;
2258 if test $use_mmap_for_buffers = yes; then
2259 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
2263 LIBS="$LIBS_SYSTEM $LIBS"
2265 dnl FIXME replace main with a function we actually want from this library.
2266 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
2268 dnl Check for the POSIX thread library.
2270 AC_CHECK_HEADERS_ONCE(pthread.h)
2271 if test "$ac_cv_header_pthread_h" && test "$opsys" != "mingw32"; then
2272 AC_CACHE_CHECK([for pthread library],
2273 [emacs_cv_pthread_lib],
2274 [emacs_cv_pthread_lib=no
2276 for emacs_pthread_lib in 'none needed' -lpthread; do
2277 case $emacs_pthread_lib in
2278 -*) LIBS="$OLD_LIBS $emacs_pthread_lib";;
2282 [[#include <pthread.h>
2284 sigset_t old_mask, new_mask;
2285 void noop (void) {}]],
2286 [[pthread_t th = pthread_self ();
2288 status += pthread_create (&th, 0, 0, 0);
2289 status += pthread_sigmask (SIG_BLOCK, &new_mask, &old_mask);
2290 status += pthread_kill (th, 0);
2291 #if ! (defined SYSTEM_MALLOC || defined HYBRID_MALLOC \
2292 || defined DOUG_LEA_MALLOC)
2293 /* Test for pthread_atfork only if gmalloc uses it,
2294 as older-style hosts like MirBSD 10 lack it. */
2295 status += pthread_atfork (noop, noop, noop);
2298 [emacs_cv_pthread_lib=$emacs_pthread_lib])
2300 if test "$emacs_cv_pthread_lib" != no; then
2304 if test "$emacs_cv_pthread_lib" != no; then
2305 AC_DEFINE([HAVE_PTHREAD], 1, [Define to 1 if you have POSIX threads.])
2306 case $emacs_cv_pthread_lib in
2307 -*) LIB_PTHREAD=$emacs_cv_pthread_lib;;
2309 ac_cv_func_pthread_sigmask=yes
2310 # Some systems optimize for single-threaded programs by default, and
2311 # need special flags to disable these optimizations. For example, the
2312 # definition of 'errno' in <errno.h>.
2315 AC_DEFINE([_REENTRANT], 1,
2316 [Define to 1 if your system requires this in multithreaded code.]);;
2318 AC_DEFINE([_THREAD_SAFE], 1,
2319 [Define to 1 if your system requires this in multithreaded code.]);;
2323 AC_SUBST([LIB_PTHREAD])
2325 AC_MSG_CHECKING([for thread support])
2327 if test "$with_threads" = yes; then
2328 if test "$emacs_cv_pthread_lib" != no; then
2329 AC_DEFINE(THREADS_ENABLED, 1,
2330 [Define to 1 if you want elisp thread support.])
2332 elif test "${opsys}" = "mingw32"; then
2333 dnl MinGW can do native Windows threads even without pthreads
2334 AC_DEFINE(THREADS_ENABLED, 1,
2335 [Define to 1 if you want elisp thread support.])
2339 AC_MSG_RESULT([$threads_enabled])
2341 dnl Check for need for bigtoc support on IBM AIX
2345 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
2347 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
2348 *) gdb_cv_bigtoc=-bbigtoc ;;
2351 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
2352 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
2357 # Change CFLAGS, CPPFLAGS, and LIBS temporarily so that C_SWITCH_X_SITE
2358 # is for the tests that follow. We set them back later on.
2360 REAL_CFLAGS="$CFLAGS"
2361 REAL_CPPFLAGS="$CPPFLAGS"
2364 if test "${HAVE_X11}" = "yes"; then
2365 DEFS="$C_SWITCH_X_SITE $DEFS"
2366 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2368 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2369 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2371 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2372 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2373 # but it's more convenient here to set LD_RUN_PATH since this
2374 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2375 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2376 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2380 if test "${opsys}" = "gnu-linux"; then
2381 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2382 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2383 [[XOpenDisplay ("foo");]])],
2384 [xgnu_linux_first_failure=no],
2385 [xgnu_linux_first_failure=yes])
2386 if test "${xgnu_linux_first_failure}" = "yes"; then
2387 OLD_CPPFLAGS="$CPPFLAGS"
2389 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2390 LIBS="$LIBS -b i486-linuxaout"
2391 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2392 [[XOpenDisplay ("foo");]])],
2393 [xgnu_linux_second_failure=no],
2394 [xgnu_linux_second_failure=yes])
2395 if test "${xgnu_linux_second_failure}" = "yes"; then
2396 # If we get the same failure with -b, there is no use adding -b.
2397 # So leave it out. This plays safe.
2400 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2401 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2404 CPPFLAGS=$OLD_CPPFLAGS
2411 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2412 # header files included from there.
2413 AC_MSG_CHECKING(for Xkb)
2414 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2415 #include <X11/XKBlib.h>]],
2416 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2417 emacs_xkb=yes, emacs_xkb=no)
2418 AC_MSG_RESULT($emacs_xkb)
2419 if test $emacs_xkb = yes; then
2420 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2423 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2424 XScreenNumberOfScreen)
2427 if test "${window_system}" = "x11"; then
2428 AC_MSG_CHECKING(X11 version 6)
2429 AC_CACHE_VAL(emacs_cv_x11_version_6,
2430 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2431 [[#if XlibSpecificationRelease < 6
2434 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2435 if test $emacs_cv_x11_version_6 = yes; then
2436 AC_MSG_RESULT(6 or newer)
2437 AC_DEFINE(HAVE_X11R6, 1,
2438 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2439 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2440 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2444 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2445 [Define if you have usable X11R6-style XIM support.])
2449 AC_MSG_RESULT(before 6)
2454 ### Use -lrsvg-2 if available, unless '--with-rsvg=no' is specified.
2456 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2457 if test "${with_rsvg}" != "no"; then
2458 RSVG_REQUIRED=2.11.0
2459 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2461 EMACS_CHECK_MODULES([RSVG], [$RSVG_MODULE])
2462 AC_SUBST(RSVG_CFLAGS)
2465 if test $HAVE_RSVG = yes; then
2466 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2467 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2468 # Windows loads librsvg dynamically
2469 if test "${opsys}" = "mingw32"; then
2477 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${HAVE_W32}" = "yes"; then
2478 if test "${with_imagemagick}" != "no"; then
2479 ## 6.3.5 is the earliest version known to work; see Bug#17339.
2480 ## 6.8.2 makes Emacs crash; see Bug#13867.
2481 IMAGEMAGICK_MODULE="Wand >= 6.3.5 Wand != 6.8.2"
2482 EMACS_CHECK_MODULES([IMAGEMAGICK], [$IMAGEMAGICK_MODULE])
2483 AC_SUBST(IMAGEMAGICK_CFLAGS)
2484 AC_SUBST(IMAGEMAGICK_LIBS)
2486 if test $HAVE_IMAGEMAGICK = yes; then
2487 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2490 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2491 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2492 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers MagickAutoOrientImage)
2499 AC_CHECK_LIB(anl, getaddrinfo_a, HAVE_GETADDRINFO_A=yes)
2500 if test "${HAVE_GETADDRINFO_A}" = "yes"; then
2501 AC_DEFINE(HAVE_GETADDRINFO_A, 1,
2502 [Define to 1 if you have getaddrinfo_a for asynchronous DNS resolution.])
2503 GETADDRINFO_A_LIBS="-lanl"
2504 AC_SUBST(GETADDRINFO_A_LIBS)
2509 gtk_term_header=$term_header
2512 if test "${opsys}" != "mingw32"; then
2513 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2516 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2518 dnl Checks for libraries.
2519 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2520 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2521 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2522 AC_MSG_ERROR($GTK_PKG_ERRORS)
2524 if test "$pkg_check_gtk" = "yes"; then
2525 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2526 GTK_OBJ=emacsgtkfixed.o
2527 gtk_term_header=gtkutil.h
2528 USE_GTK_TOOLKIT="GTK3"
2529 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2530 AC_DEFINE([GDK_DISABLE_DEPRECATION_WARNINGS], [1],
2531 [Define to 1 to disable GTK+/GDK deprecation warnings.])
2532 AC_DEFINE([GLIB_DISABLE_DEPRECATION_WARNINGS], [1],
2533 [Define to 1 to disable Glib deprecation warnings.])
2537 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2541 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2544 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2546 dnl Checks for libraries.
2547 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2548 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2549 if test "$pkg_check_gtk" = "no" &&
2550 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2552 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2554 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2561 if test x"$pkg_check_gtk" = xyes; then
2564 CFLAGS="$CFLAGS $GTK_CFLAGS"
2565 LIBS="$GTK_LIBS $LIBS"
2566 dnl Try to compile a simple GTK program.
2567 AC_MSG_CHECKING([whether GTK compiles])
2571 [[/* Check the Gtk and Glib APIs. */
2572 #include <gtk/gtk.h>
2573 #include <glib-object.h>
2575 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2579 GtkSettings *gs = 0;
2580 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2581 strict C prohibits this. Use gtk_main_iteration to test that the
2582 libraries are there. */
2583 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2584 0, 0, 0, G_CALLBACK (callback), 0))
2585 gtk_main_iteration ();
2588 AC_MSG_RESULT([$GTK_COMPILES])
2589 if test "${GTK_COMPILES}" != "yes"; then
2591 if test "$USE_X_TOOLKIT" != "maybe"; then
2592 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2595 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2597 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2598 GTK_OBJ="gtkutil.o $GTK_OBJ"
2599 term_header=$gtk_term_header
2601 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2602 closing open displays. This is no problem if you just use
2603 one display, but if you use more than one and close one of them
2605 See http://bugzilla.gnome.org/show_bug.cgi?id=85715]])
2613 if test "${HAVE_GTK}" = "yes"; then
2615 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2616 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2617 if test "$with_toolkit_scroll_bars" != no; then
2618 with_toolkit_scroll_bars=yes
2621 dnl Check if we have the old file selection dialog declared and
2622 dnl in the link library. In 2.x it may be in the library,
2623 dnl but not declared if deprecated featured has been selected out.
2624 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2625 HAVE_GTK_FILE_SELECTION=no
2626 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2627 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2628 #include <gtk/gtk.h>])
2629 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2630 AC_CHECK_FUNCS(gtk_file_selection_new)
2633 dnl Same as above for gtk_handle_box.
2634 HAVE_GTK_HANDLE_BOX=no
2635 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2636 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2637 #include <gtk/gtk.h>])
2638 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2639 AC_CHECK_FUNCS(gtk_handle_box_new)
2642 dnl Same as above for gtk_tearoff_menu_item.
2643 HAVE_GTK_TEAROFF_MENU_ITEM=no
2644 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2645 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2646 #include <gtk/gtk.h>])
2647 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2648 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2651 dnl Check for functions introduced in 2.14 and later.
2652 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2653 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2654 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2655 gtk_orientable_set_orientation \
2656 gtk_window_set_has_resize_grip)
2658 term_header=gtkutil.h
2662 dnl Enable xwidgets if GTK3 and WebKitGTK+ are available.
2665 if test "$with_xwidgets" != "no"; then
2666 test "$USE_GTK_TOOLKIT" = "GTK3" && test "$window_system" != "none" ||
2667 AC_MSG_ERROR([xwidgets requested but gtk3 not used.])
2669 WEBKIT_REQUIRED=2.12
2670 WEBKIT_MODULES="webkit2gtk-4.0 >= $WEBKIT_REQUIRED"
2671 EMACS_CHECK_MODULES([WEBKIT], [$WEBKIT_MODULES])
2672 HAVE_XWIDGETS=$HAVE_WEBKIT
2673 test $HAVE_XWIDGETS = yes ||
2674 AC_MSG_ERROR([xwidgets requested but WebKitGTK+ not found.])
2676 XWIDGETS_OBJ=xwidget.o
2677 AC_DEFINE([HAVE_XWIDGETS], 1, [Define to 1 if you have xwidgets support.])
2679 AC_SUBST(XWIDGETS_OBJ)
2684 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2685 dnl other platforms.
2688 if test "${with_dbus}" = "yes"; then
2689 EMACS_CHECK_MODULES([DBUS], [dbus-1 >= 1.0])
2690 if test "$HAVE_DBUS" = yes; then
2691 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2692 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2693 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2696 LIBS="$LIBS $DBUS_LIBS"
2697 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2698 dbus_type_is_valid \
2699 dbus_validate_bus_name \
2700 dbus_validate_path \
2701 dbus_validate_interface \
2702 dbus_validate_member)
2707 AC_SUBST(DBUS_CFLAGS)
2711 dnl GSettings has been tested under GNU/Linux only.
2713 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2714 EMACS_CHECK_MODULES([GSETTINGS], [gio-2.0 >= 2.26])
2715 if test "$HAVE_GSETTINGS" = "yes"; then
2717 CFLAGS="$CFLAGS $GSETTINGS_CFLAGS"
2719 LIBS="$LIBS $GSETTINGS_LIBS"
2720 AC_MSG_CHECKING([whether GSettings is in gio])
2723 [[/* Check that gsettings really is present. */
2724 #include <glib-object.h>
2725 #include <gio/gio.h>
2728 GSettings *settings;
2729 GVariant *val = g_settings_get_value (settings, "");
2731 [], HAVE_GSETTINGS=no)
2732 AC_MSG_RESULT([$HAVE_GSETTINGS])
2734 if test "$HAVE_GSETTINGS" = "yes"; then
2735 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2736 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2737 SETTINGS_LIBS="$GSETTINGS_LIBS"
2744 dnl GConf has been tested under GNU/Linux only.
2745 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2747 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2748 EMACS_CHECK_MODULES([GCONF], [gconf-2.0 >= 2.13])
2749 if test "$HAVE_GCONF" = yes; then
2750 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2751 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2752 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2753 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2757 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2758 EMACS_CHECK_MODULES([GOBJECT], [gobject-2.0 >= 2.0])
2759 if test "$HAVE_GOBJECT" = "yes"; then
2760 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2761 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2763 SAVE_CFLAGS="$CFLAGS"
2765 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2766 LIBS="$SETTINGS_LIBS $LIBS"
2767 CFLAGS="$SAVE_CFLAGS"
2770 AC_SUBST(SETTINGS_CFLAGS)
2771 AC_SUBST(SETTINGS_LIBS)
2774 dnl SELinux is available for GNU/Linux only.
2777 if test "${with_selinux}" = "yes"; then
2778 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2779 if test "$HAVE_LIBSELINUX" = yes; then
2780 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2781 LIBSELINUX_LIBS=-lselinux
2784 AC_SUBST(LIBSELINUX_LIBS)
2787 if test "${with_gnutls}" = "yes" ; then
2788 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.12.2],
2789 [HAVE_GNUTLS=yes], [HAVE_GNUTLS=no])
2790 if test "${HAVE_GNUTLS}" = "yes"; then
2791 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2792 EMACS_CHECK_MODULES([LIBGNUTLS3], [gnutls >= 3.0.0],
2793 [AC_DEFINE(HAVE_GNUTLS3, 1, [Define if using GnuTLS v3.])], [])
2796 # Windows loads GnuTLS dynamically
2797 if test "${opsys}" = "mingw32"; then
2802 AC_SUBST(LIBGNUTLS_LIBS)
2803 AC_SUBST(LIBGNUTLS_CFLAGS)
2806 if test "${with_libsystemd}" = "yes" ; then
2807 dnl This code has been tested with libsystemd 222 and later.
2808 dnl FIXME: Find the earliest version number for which Emacs should work,
2809 dnl and change '222' to that number.
2810 EMACS_CHECK_MODULES([LIBSYSTEMD], [libsystemd >= 222],
2811 [HAVE_LIBSYSTEMD=yes], [HAVE_LIBSYSTEMD=no])
2812 if test "${HAVE_LIBSYSTEMD}" = "yes"; then
2813 AC_DEFINE(HAVE_LIBSYSTEMD, 1, [Define if using libsystemd.])
2817 AC_SUBST(LIBSYSTEMD_LIBS)
2818 AC_SUBST(LIBSYSTEMD_CFLAGS)
2823 dnl MS Windows native file monitor is available for mingw32 only.
2824 case $with_file_notification,$opsys in
2826 AC_MSG_ERROR(['--with-file-notification=w32' was specified, but
2827 this is only supported on MS-Windows native and MinGW32 builds.
2828 Consider using gfile instead.])
2830 w32,* | yes,mingw32)
2831 AC_CHECK_HEADER(windows.h)
2832 if test "$ac_cv_header_windows_h" = yes ; then
2833 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2834 NOTIFY_OBJ=w32notify.o
2835 NOTIFY_SUMMARY="yes (w32)"
2839 dnl inotify is available only on GNU/Linux.
2840 case $with_file_notification,$NOTIFY_OBJ in
2842 AC_CHECK_HEADER(sys/inotify.h)
2843 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2844 AC_CHECK_FUNC(inotify_init1)
2845 if test "$ac_cv_func_inotify_init1" = yes; then
2846 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2847 NOTIFY_OBJ=inotify.o
2848 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2853 dnl kqueue is available on BSD-like systems.
2854 case $with_file_notification,$NOTIFY_OBJ in
2856 EMACS_CHECK_MODULES([KQUEUE], [libkqueue])
2857 if test "$HAVE_KQUEUE" = "yes"; then
2858 AC_DEFINE(HAVE_KQUEUE, 1, [Define to 1 to use kqueue.])
2859 CPPFLAGS="$CPPFLAGS -I/usr/include/kqueue"
2860 NOTIFY_CFLAGS=$KQUEUE_CFLAGS
2861 NOTIFY_LIBS=$KQUEUE_LIBS
2863 NOTIFY_SUMMARY="yes -lkqueue"
2865 AC_SEARCH_LIBS(kqueue, [])
2866 if test "$ac_cv_search_kqueue" != no; then
2867 AC_DEFINE(HAVE_KQUEUE, 1, [Define to 1 to use kqueue.])
2869 NOTIFY_SUMMARY="yes (kqueue)"
2874 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2875 dnl has been added in glib 2.24. It has been tested under
2877 case $with_file_notification,$NOTIFY_OBJ in
2879 if test "${HAVE_NS}" = yes; then
2880 AC_MSG_ERROR(['--with-file-notification=gfile' is not supported in NextStep builds.
2881 Consider kqueue instead.])
2883 EMACS_CHECK_MODULES([GFILENOTIFY], [gio-2.0 >= 2.24])
2884 if test "$HAVE_GFILENOTIFY" = "yes"; then
2885 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2886 NOTIFY_CFLAGS=$GFILENOTIFY_CFLAGS
2887 NOTIFY_LIBS=$GFILENOTIFY_LIBS
2888 NOTIFY_OBJ=gfilenotify.o
2889 NOTIFY_SUMMARY="yes -lgio (gfile)"
2894 case $with_file_notification,$NOTIFY_OBJ in
2895 yes,* | no,* | *,?*) ;;
2896 *) AC_MSG_ERROR([File notification '$with_file_notification' requested but requirements not found.]) ;;
2899 if test -n "$NOTIFY_OBJ"; then
2900 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2902 AC_SUBST(NOTIFY_CFLAGS)
2903 AC_SUBST(NOTIFY_LIBS)
2904 AC_SUBST(NOTIFY_OBJ)
2906 dnl Do not put whitespace before the #include statements below.
2907 dnl Older compilers (eg sunos4 cc) choke on it.
2910 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2911 if test "$with_xaw3d" != no; then
2912 AC_CACHE_VAL(emacs_cv_xaw3d,
2913 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2914 #include <X11/Intrinsic.h>
2915 #include <X11/Xaw3d/Simple.h>]],
2917 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2918 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2919 emacs_cv_xaw3d=no)])
2923 if test $emacs_cv_xaw3d = yes; then
2924 AC_MSG_CHECKING(for xaw3d)
2925 AC_MSG_RESULT([yes; using Lucid toolkit])
2929 AC_DEFINE(HAVE_XAW3D, 1,
2930 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2932 AC_MSG_CHECKING(for xaw3d)
2934 AC_MSG_CHECKING(for libXaw)
2935 AC_CACHE_VAL(emacs_cv_xaw,
2936 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2937 #include <X11/Intrinsic.h>
2938 #include <X11/Xaw/Simple.h>]],
2942 if test $emacs_cv_xaw = yes; then
2943 AC_MSG_RESULT([yes; using Lucid toolkit])
2946 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2947 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2949 AC_MSG_ERROR([No X toolkit could be found.
2950 If you are sure you want Emacs compiled without an X toolkit, pass
2952 to configure. Otherwise, install the development libraries for the toolkit
2953 that you want to use (e.g. Gtk+) and re-run configure.])
2958 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2962 if test "${USE_X_TOOLKIT}" != "none"; then
2963 AC_MSG_CHECKING(X11 toolkit version)
2964 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2965 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2966 [[#if XtSpecificationRelease < 6
2969 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2970 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2971 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2972 AC_MSG_RESULT(6 or newer)
2973 AC_DEFINE(HAVE_X11XTR6, 1,
2974 [Define to 1 if you have the X11R6 or newer version of Xt.])
2975 LIBXTR6="-lSM -lICE"
2977 ## Use libw.a along with X11R6 Xt.
2978 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2981 AC_MSG_RESULT(before 6)
2984 dnl If using toolkit, check whether libXmu.a exists.
2985 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2987 if test x$HAVE_X11XTR6 = xyes; then
2988 OTHERLIBS='-lXt -lSM -lICE'
2992 AC_SEARCH_LIBS([XmuConvertStandardSelection], [Xmu], [], [], [$OTHERLIBS])
2993 if test "X$LIBS" != "X$OLDLIBS"; then
2994 LIBXMU=$ac_cv_search_XmuConvertStandardSelection
2997 dnl ac_cv_search_XmuConvertStandardSelection is also referenced below.
3003 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
3004 # OpenMotif may be installed in such a way on some GNU/Linux systems.
3005 if test -d /usr/include/openmotif; then
3006 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
3007 emacs_cv_openmotif=yes
3008 case "$canonical" in
3009 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
3010 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
3013 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
3016 emacs_cv_openmotif=no
3018 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
3019 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
3020 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
3023 Motif version prior to 2.1.
3025 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
3026 if test $emacs_cv_motif_version_2_1 = yes; then
3027 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
3028 if test x$emacs_cv_openmotif = xyes; then
3029 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
3032 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
3033 # We put this in CFLAGS temporarily to precede other -I options
3034 # that might be in CFLAGS temporarily.
3035 # We put this in CPPFLAGS where it precedes the other -I options.
3036 OLD_CPPFLAGS=$CPPFLAGS
3038 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
3039 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
3040 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
3042 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
3043 if test $emacs_cv_lesstif = yes; then
3044 # Make sure this -I option remains in CPPFLAGS after it is set
3045 # back to REAL_CPPFLAGS.
3046 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
3047 # have those other -I options anyway. Ultimately, having this
3048 # directory ultimately in CPPFLAGS will be enough.
3049 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
3050 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
3053 CPPFLAGS=$OLD_CPPFLAGS
3056 AC_CHECK_HEADER([Xm/BulletinB.h], [],
3057 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
3060 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
3061 dnl using Motif or Xaw3d is available, and unless
3062 dnl --with-toolkit-scroll-bars=no was specified.
3064 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
3065 [Define to 1 if we should use toolkit scroll bars.])dnl
3066 USE_TOOLKIT_SCROLL_BARS=no
3067 if test "${with_toolkit_scroll_bars}" != "no"; then
3068 if test "${USE_X_TOOLKIT}" != "none"; then
3069 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
3070 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3072 USE_TOOLKIT_SCROLL_BARS=yes
3073 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
3074 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3075 USE_TOOLKIT_SCROLL_BARS=yes
3077 elif test "${HAVE_GTK}" = "yes"; then
3078 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3079 USE_TOOLKIT_SCROLL_BARS=yes
3080 elif test "${HAVE_NS}" = "yes"; then
3081 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3082 USE_TOOLKIT_SCROLL_BARS=yes
3083 elif test "${HAVE_W32}" = "yes"; then
3084 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3085 USE_TOOLKIT_SCROLL_BARS=yes
3089 dnl See if XIM is available.
3090 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
3091 #include <X11/Xlib.h>
3092 #include <X11/Xresource.h>]],
3093 [[XIMProc callback;]])],
3095 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
3098 dnl '--with-xim' now controls only the initial value of use_xim at run time.
3100 if test "${with_xim}" != "no"; then
3101 AC_DEFINE(USE_XIM, 1,
3102 [Define to 1 if we should use XIM, if it is available.])
3106 if test "${HAVE_XIM}" != "no"; then
3108 if test "$GCC" = yes; then
3109 CFLAGS="$CFLAGS --pedantic-errors"
3111 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
3112 #include <X11/Xlib.h>
3113 #include <X11/Xresource.h>]],
3119 XPointer *client_data;
3121 /* If we're not using GCC, it's probably not XFree86, and this is
3122 probably right, but we can't use something like --pedantic-errors. */
3123 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
3124 char*, XIMProc, XPointer*);
3126 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
3128 [emacs_cv_arg6_star=yes])
3129 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
3130 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
3131 either XPointer or XPointer*.])dnl
3132 if test "$emacs_cv_arg6_star" = yes; then
3133 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
3135 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
3140 ### Start of font-backend (under any platform) section.
3141 # (nothing here yet -- this is a placeholder)
3142 ### End of font-backend (under any platform) section.
3144 ### Start of font-backend (under X11) section.
3145 if test "${HAVE_X11}" = "yes"; then
3146 ## Use -lXft if available, unless '--with-xft=no'.
3148 if test "x${with_x}" = "xno"; then
3152 if test "$with_xft" != no; then
3153 EMACS_CHECK_MODULES([FONTCONFIG], [fontconfig >= 2.2.0])
3154 with_xft=$HAVE_FONTCONFIG
3157 if test "x${with_xft}" != "xno"; then
3159 EMACS_CHECK_MODULES([XFT], [xft >= 0.13.0], [], [HAVE_XFT=no])
3160 ## Because xftfont.c uses XRenderQueryExtension, we also
3161 ## need to link to -lXrender.
3163 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
3164 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
3165 OLD_CPPFLAGS="$CPPFLAGS"
3166 OLD_CFLAGS="$CFLAGS"
3168 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
3169 CFLAGS="$CFLAGS $XFT_CFLAGS"
3170 XFT_LIBS="-lXrender $XFT_LIBS"
3171 LIBS="$XFT_LIBS $LIBS"
3172 AC_CHECK_HEADER(X11/Xft/Xft.h,
3173 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
3174 [[#include <X11/X.h>]])
3176 if test "${HAVE_XFT}" = "yes"; then
3177 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
3179 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
3180 fi # "${HAVE_XFT}" = "yes"
3181 CPPFLAGS=$OLD_CPPFLAGS
3184 fi # "$HAVE_XFT" != no
3185 fi # "x${with_xft}" != "xno"
3187 ## We used to allow building with FreeType and without Xft.
3188 ## However, the ftx font backend driver is not in good shape.
3189 if test "$HAVE_XFT" != "yes"; then
3190 dnl For the "Does Emacs use" message at the end.
3194 dnl Strict linkers fail with
3195 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
3196 dnl if -lfreetype is not specified.
3197 dnl The following is needed to set FREETYPE_LIBS.
3198 EMACS_CHECK_MODULES([FREETYPE], [freetype2])
3200 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
3204 if test "${HAVE_FREETYPE}" = "yes"; then
3205 AC_DEFINE(HAVE_FREETYPE, 1,
3206 [Define to 1 if using the freetype and fontconfig libraries.])
3207 if test "${with_libotf}" != "no"; then
3208 EMACS_CHECK_MODULES([LIBOTF], [libotf])
3209 if test "$HAVE_LIBOTF" = "yes"; then
3210 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
3211 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
3212 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
3213 HAVE_OTF_GET_VARIATION_GLYPHS=no)
3214 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
3215 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
3216 [Define to 1 if libotf has OTF_get_variation_glyphs.])
3220 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
3221 dnl Does the new font backend require it, or can it work without it?
3225 if test "${HAVE_LIBOTF}" = yes; then
3226 if test "${with_m17n_flt}" != "no"; then
3227 EMACS_CHECK_MODULES([M17N_FLT], [m17n-flt])
3228 if test "$HAVE_M17N_FLT" = "yes"; then
3229 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
3240 ### End of font-backend (under X11) section.
3242 AC_SUBST(FREETYPE_CFLAGS)
3243 AC_SUBST(FREETYPE_LIBS)
3244 AC_SUBST(FONTCONFIG_CFLAGS)
3245 AC_SUBST(FONTCONFIG_LIBS)
3246 AC_SUBST(LIBOTF_CFLAGS)
3247 AC_SUBST(LIBOTF_LIBS)
3248 AC_SUBST(M17N_FLT_CFLAGS)
3249 AC_SUBST(M17N_FLT_LIBS)
3252 if test "${HAVE_X11}" = "yes"; then
3253 if test "${with_cairo}" != "no"; then
3254 CAIRO_REQUIRED=1.12.0
3255 CAIRO_MODULE="cairo >= $CAIRO_REQUIRED"
3256 EMACS_CHECK_MODULES(CAIRO, $CAIRO_MODULE)
3257 if test $HAVE_CAIRO = yes; then
3258 AC_DEFINE(USE_CAIRO, 1, [Define to 1 if using cairo.])
3260 AC_MSG_ERROR([cairo requested but not found.])
3263 CFLAGS="$CFLAGS $CAIRO_CFLAGS"
3264 LIBS="$LIBS $CAIRO_LIBS"
3265 AC_SUBST(CAIRO_CFLAGS)
3266 AC_SUBST(CAIRO_LIBS)
3270 if test "${HAVE_X11}" = "yes"; then
3271 AC_CHECK_HEADER(X11/Xlib-xcb.h,
3272 AC_CHECK_LIB(xcb, xcb_translate_coordinates, HAVE_XCB=yes))
3273 if test "${HAVE_XCB}" = "yes"; then
3274 AC_CHECK_LIB(X11-xcb, XGetXCBConnection, HAVE_X11_XCB=yes)
3275 if test "${HAVE_X11_XCB}" = "yes"; then
3276 AC_DEFINE(USE_XCB, 1,
3277 [Define to 1 if you have the XCB library and X11-XCB library for mixed
3278 X11/XCB programming.])
3279 XCB_LIBS="-lX11-xcb -lxcb"
3285 ### Use -lXpm if available, unless '--with-xpm=no'.
3286 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
3287 ### The Cygwin-w32 build uses <noX/xpm.h> instead of <X11/xpm.h>, so
3288 ### we need to set LDFLAGS accordingly.
3291 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
3292 if test "${with_xpm}" != "no"; then
3293 SAVE_LDFLAGS="$LDFLAGS"
3294 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
3295 AC_CHECK_HEADER(noX/xpm.h,
3296 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
3297 if test "${HAVE_XPM}" = "yes"; then
3298 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3299 AC_EGREP_CPP(no_return_alloc_pixels,
3300 [#include "noX/xpm.h"
3301 #ifndef XpmReturnAllocPixels
3302 no_return_alloc_pixels
3304 ], HAVE_XPM=no, HAVE_XPM=yes)
3306 if test "${HAVE_XPM}" = "yes"; then
3310 LDFLAGS="$SAVE_LDFLAGS"
3315 if test "${HAVE_XPM}" = "yes"; then
3316 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3321 if test "${HAVE_X11}" = "yes"; then
3322 dnl Avoid Xpm on AIX unless requested, as it crashes; see Bug#17598.
3323 test "$opsys$with_xpm_set" = aix4-2 && with_xpm=no
3325 if test "${with_xpm}" != "no"; then
3326 AC_CHECK_HEADER(X11/xpm.h,
3327 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
3328 if test "${HAVE_XPM}" = "yes"; then
3329 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3330 AC_EGREP_CPP(no_return_alloc_pixels,
3331 [#include "X11/xpm.h"
3332 #ifndef XpmReturnAllocPixels
3333 no_return_alloc_pixels
3335 ], HAVE_XPM=no, HAVE_XPM=yes)
3337 if test "${HAVE_XPM}" = "yes"; then
3345 if test "${HAVE_XPM}" = "yes"; then
3346 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3348 elif test "$opsys,$LUCID_LIBW" = aix4-2,-lXaw; then
3349 dnl AIX -lXaw needs -lXpm linked too; see Bug#17598 Message#152.
3354 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
3355 ### slightly different requirements wrt image libraries (it doesn't
3356 ### use -lXpm because it loads the xpm shared library dynamically at
3358 if test "${opsys}" = "mingw32"; then
3359 if test "${with_xpm}" != "no"; then
3360 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
3364 if test "${HAVE_XPM}" = "yes"; then
3365 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3371 ### Use -ljpeg if available, unless '--with-jpeg=no'.
3374 if test "${with_jpeg}" != "no"; then
3375 AC_CACHE_CHECK([for jpeglib 6b or later],
3378 for emacs_cv_jpeglib in yes -ljpeg no; do
3379 case $emacs_cv_jpeglib in
3382 *) LIBS="$LIBS $emacs_cv_jpeglib";;
3386 [[#undef HAVE_STDLIB_H /* Avoid config.h/jpeglib.h collision. */
3387 #include <stdio.h> /* jpeglib.h needs FILE and size_t. */
3388 #include <jpeglib.h>
3390 char verify[JPEG_LIB_VERSION < 62 ? -1 : 1];
3391 struct jpeg_decompress_struct cinfo;
3394 jpeg_create_decompress (&cinfo);
3395 WARNMS (&cinfo, JWRN_JPEG_EOF);
3396 jpeg_destroy_decompress (&cinfo);
3398 [emacs_link_ok=yes],
3401 test $emacs_link_ok = yes && break
3403 if test "$emacs_cv_jpeglib" != no; then
3405 AC_DEFINE([HAVE_JPEG], 1,
3406 [Define to 1 if you have the jpeg library (typically -ljpeg).])
3407 ### mingw32 doesn't use -ljpeg, since it loads the library
3408 ### dynamically when needed, and doesn't want a run-time
3409 ### dependency on the jpeglib DLL.
3410 test "$emacs_cv_jpeglib" != yes && test "${opsys}" != "mingw32" \
3411 && LIBJPEG=$emacs_cv_jpeglib
3418 if test "${with_zlib}" != "no"; then
3420 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
3422 case $ac_cv_search_inflateEnd in
3423 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3426 if test "${HAVE_ZLIB}" = "yes"; then
3427 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3428 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3429 if test "${opsys}" = "mingw32"; then
3435 ### Dynamic modules support
3440 if test "${with_modules}" != "no"; then
3444 MODULES_SUFFIX=".so"
3448 MODULES_SUFFIX=".dll"
3452 MODULES_SUFFIX=".so"
3456 # BSD systems have dlopen in libc.
3457 AC_CHECK_FUNC([dlopen],
3458 [MODULES_SUFFIX=".so"
3463 if test "${HAVE_MODULES}" = no; then
3464 AC_MSG_ERROR([Dynamic modules are not supported on your system])
3467 LIBS="$LIBS $LIBMODULES"
3468 AC_CHECK_FUNCS([dladdr dlfunc])
3473 if test "${HAVE_MODULES}" = yes; then
3474 MODULES_OBJ="dynlib.o emacs-module.o"
3475 AC_DEFINE(HAVE_MODULES, 1, [Define to 1 if dynamic modules are enabled])
3476 AC_DEFINE_UNQUOTED(MODULES_SUFFIX, "$MODULES_SUFFIX",
3477 [System extension for dynamic libraries])
3479 AC_SUBST(MODULES_OBJ)
3480 AC_SUBST(LIBMODULES)
3481 AC_SUBST(HAVE_MODULES)
3482 AC_SUBST(MODULES_SUFFIX)
3484 ### Use -lpng if available, unless '--with-png=no'.
3488 if test "${NS_IMPL_COCOA}" = yes; then
3490 elif test "${with_png}" != no; then
3491 # mingw32 loads the library dynamically.
3492 if test "$opsys" = mingw32; then
3493 AC_CHECK_HEADER([png.h], [HAVE_PNG=yes])
3494 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3495 AC_MSG_CHECKING([for png])
3496 png_cflags=`(libpng-config --cflags) 2>&AS_MESSAGE_LOG_FD` &&
3497 png_ldflags=`(libpng-config --ldflags) 2>&AS_MESSAGE_LOG_FD` || {
3498 # libpng-config does not work; configure by hand.
3499 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
3500 # in /usr/include/libpng.
3501 if test -r /usr/include/libpng/png.h &&
3502 test ! -r /usr/include/png.h; then
3503 png_cflags=-I/usr/include/libpng
3511 CFLAGS="$CFLAGS $png_cflags"
3512 LIBS="$png_ldflags -lz -lm $LIBS"
3514 [AC_LANG_PROGRAM([[#include <png.h>]],
3515 [[return !png_get_channels (0, 0);]])],
3517 PNG_CFLAGS=`AS_ECHO(["$png_cflags"]) | sed -e "$edit_cflags"`
3519 # $LIBPNG requires explicit -lz in some cases.
3520 # We don't know what those cases are, exactly, so play it safe and
3521 # append -lz to any nonempty $LIBPNG, unless we're already using LIBZ.
3522 if test -n "$LIBPNG" && test -z "$LIBZ"; then
3523 LIBPNG="$LIBPNG -lz"
3527 AC_MSG_RESULT([$HAVE_PNG])
3530 if test $HAVE_PNG = yes; then
3531 AC_DEFINE([HAVE_PNG], [1], [Define to 1 if you have the png library.])
3534 CFLAGS="$CFLAGS $PNG_CFLAGS"
3535 AC_CHECK_DECL([png_longjmp],
3537 [AC_DEFINE([PNG_DEPSTRUCT], [],
3538 [Define to empty to suppress deprecation warnings when building
3539 with --enable-gcc-warnings and with libpng versions before 1.5,
3540 which lack png_longjmp.])],
3546 AC_SUBST(PNG_CFLAGS)
3548 ### Use -ltiff if available, unless '--with-tiff=no'.
3549 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3552 if test "${opsys}" = "mingw32"; then
3553 if test "${with_tiff}" != "no"; then
3554 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3556 if test "${HAVE_TIFF}" = "yes"; then
3557 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3559 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3560 if test "${with_tiff}" != "no"; then
3561 AC_CHECK_HEADER(tiffio.h,
3563 # At least one tiff package requires the jpeg library.
3564 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3565 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3568 if test "${HAVE_TIFF}" = "yes"; then
3569 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3570 dnl FIXME -lz -lm, as per libpng?
3576 ### Use -lgif or -lungif if available, unless '--with-gif=no'.
3577 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3580 if test "${opsys}" = "mingw32"; then
3581 if test "${with_gif}" != "no"; then
3582 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3584 if test "${HAVE_GIF}" = "yes"; then
3585 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3587 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3588 || test "${HAVE_W32}" = "yes"; then
3589 AC_CHECK_HEADER(gif_lib.h,
3590 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3591 # Earlier versions can crash Emacs, but version 5.0 removes EGifPutExtensionLast.
3592 [AC_CHECK_LIB(gif, GifMakeMapObject, HAVE_GIF=yes,
3593 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])])
3595 if test "$HAVE_GIF" = yes; then
3597 elif test "$HAVE_GIF" = maybe; then
3598 # If gif_lib.h but no libgif, try libungif.
3599 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3600 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3603 if test "${HAVE_GIF}" = "yes"; then
3604 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3609 dnl Check for required libraries.
3612 if test "${HAVE_X11}" = "yes"; then
3613 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3614 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3615 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3616 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3617 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3618 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3619 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3620 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3621 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3622 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3624 test "${with_gnutls}" != "no" && test "${HAVE_GNUTLS}" != "yes" &&
3625 MISSING="$MISSING gnutls" && WITH_NO="$WITH_NO --with-gnutls=no"
3626 if test "X${MISSING}" != X; then
3627 AC_MSG_ERROR([The following required libraries were not found:
3629 Maybe some development libraries/packages are missing?
3630 If you don't want to link with them give
3632 as options to configure])
3635 ### Use -lgpm if available, unless '--with-gpm=no'.
3638 if test "${with_gpm}" != "no"; then
3639 AC_CHECK_HEADER(gpm.h,
3640 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3642 if test "${HAVE_GPM}" = "yes"; then
3643 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3649 dnl Check for malloc/malloc.h on darwin
3650 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3653 ### Use NeXTstep API to implement GUI.
3654 if test "${HAVE_NS}" = "yes"; then
3655 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on macOS.])
3656 if test "${NS_IMPL_COCOA}" = "yes"; then
3657 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under macOS.])
3659 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3660 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3661 if test $NS_GNUSTEP_CONFIG != yes; then
3662 # See also .m.o rule in src/Makefile.in. */
3663 # FIXME: are all these flags really needed? Document here why. */
3664 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3665 ## Extra CFLAGS applied to src/*.m files.
3666 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3672 ### Use session management (-lSM -lICE) if available
3675 if test "${HAVE_X11}" = "yes"; then
3676 AC_CHECK_HEADER(X11/SM/SMlib.h,
3677 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3679 if test "${HAVE_X_SM}" = "yes"; then
3680 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3686 ### Use XRandr (-lXrandr) if available
3688 if test "${HAVE_X11}" = "yes"; then
3689 XRANDR_REQUIRED=1.2.2
3690 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3691 EMACS_CHECK_MODULES([XRANDR], [$XRANDR_MODULES])
3692 if test $HAVE_XRANDR = no; then
3693 # Test old way in case pkg-config doesn't have it (older machines).
3694 # Include Xrender.h by hand to work around bug in older Xrandr.h
3695 # (e.g. RHEL5) and silence (harmless) configure warning (bug#18465).
3696 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3697 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)],
3698 [], [AC_INCLUDES_DEFAULT
3699 #include <X11/extensions/Xrender.h>])
3700 if test $HAVE_XRANDR = yes; then
3701 XRANDR_LIBS=-lXrandr
3704 if test $HAVE_XRANDR = yes; then
3705 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3708 AC_SUBST(XRANDR_CFLAGS)
3709 AC_SUBST(XRANDR_LIBS)
3711 ### Use Xinerama (-lXinerama) if available
3713 if test "${HAVE_X11}" = "yes"; then
3714 XINERAMA_REQUIRED=1.0.2
3715 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3716 EMACS_CHECK_MODULES([XINERAMA], [$XINERAMA_MODULES])
3717 if test $HAVE_XINERAMA = no; then
3718 # Test old way in case pkg-config doesn't have it (older machines).
3719 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3720 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3721 if test $HAVE_XINERAMA = yes; then
3722 XINERAMA_LIBS=-lXinerama
3725 if test $HAVE_XINERAMA = yes; then
3726 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3729 AC_SUBST(XINERAMA_CFLAGS)
3730 AC_SUBST(XINERAMA_LIBS)
3732 ### Use Xfixes (-lXfixes) if available
3734 if test "${HAVE_X11}" = "yes"; then
3735 XFIXES_REQUIRED=4.0.0
3736 XFIXES_MODULES="xfixes >= $XFIXES_REQUIRED"
3737 EMACS_CHECK_MODULES([XFIXES], [$XFIXES_MODULES])
3738 if test $HAVE_XFIXES = no; then
3739 # Test old way in case pkg-config doesn't have it (older machines).
3740 AC_CHECK_HEADER(X11/extensions/Xfixes.h,
3741 [AC_CHECK_LIB(Xfixes, XFixesHideCursor, HAVE_XFIXES=yes)])
3742 if test $HAVE_XFIXES = yes; then
3743 XFIXES_LIBS=-lXfixes
3746 if test $HAVE_XFIXES = yes; then
3747 AC_DEFINE(HAVE_XFIXES, 1, [Define to 1 if you have the Xfixes extension.])
3750 AC_SUBST(XFIXES_CFLAGS)
3751 AC_SUBST(XFIXES_LIBS)
3753 ### Use Xdbe (-lXdbe) if available
3755 if test "${HAVE_X11}" = "yes"; then
3756 AC_CHECK_HEADER(X11/extensions/Xdbe.h,
3757 [AC_CHECK_LIB(Xext, XdbeAllocateBackBufferName, HAVE_XDBE=yes)],
3759 [#include <X11/Xlib.h>
3761 if test $HAVE_XDBE = yes; then
3764 if test $HAVE_XDBE = yes; then
3765 AC_DEFINE(HAVE_XDBE, 1, [Define to 1 if you have the Xdbe extension.])
3768 AC_SUBST(XDBE_CFLAGS)
3771 ### Use libxml (-lxml2) if available
3772 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3774 if test "${with_xml2}" != "no"; then
3775 ### I'm not sure what the version number should be, so I just guessed.
3776 EMACS_CHECK_MODULES([LIBXML2], [libxml-2.0 > 2.6.17])
3777 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3778 if test "${HAVE_LIBXML2}" != "yes" && test "$opsys" = "darwin"; then
3779 SAVE_CPPFLAGS="$CPPFLAGS"
3780 if test -z "$xcsdkdir" -a -n "$XCRUN" -a ! -d /usr/include; then
3781 dnl /usr/include is not found. Try Xcode SDK dir if it is sane.
3782 xcsdkdir=`$XCRUN --show-sdk-path 2>/dev/null`
3784 *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
3788 CPPFLAGS="$CPPFLAGS -I$xcsdkdir/usr/include/libxml2"
3789 AC_CHECK_HEADER(libxml/HTMLparser.h,
3790 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3791 [#include <libxml/HTMLparser.h>])])
3792 CPPFLAGS="$SAVE_CPPFLAGS"
3793 if test "${HAVE_LIBXML2}" = "yes"; then
3794 LIBXML2_CFLAGS="-I'$xcsdkdir/usr/include/libxml2'"
3795 LIBXML2_LIBS="-lxml2"
3798 if test "${HAVE_LIBXML2}" = "yes"; then
3799 if test "${opsys}" != "mingw32"; then
3800 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no,
3805 if test "${HAVE_LIBXML2}" = "yes"; then
3806 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3813 AC_SUBST(LIBXML2_LIBS)
3814 AC_SUBST(LIBXML2_CFLAGS)
3818 if test ! "$with_mailutils"; then
3819 # Check for mail-locking functions in a "mail" library. Probably this should
3820 # have the same check as for liblockfile below.
3821 AC_CHECK_LIB([mail], [maillock], [have_mail=yes], [have_mail=no])
3822 if test $have_mail = yes; then
3824 AC_DEFINE([HAVE_LIBMAIL], [1],
3825 [Define to 1 if you have the 'mail' library (-lmail).])
3828 LIBS="$LIBS_MAIL $LIBS"
3829 AC_CHECK_FUNCS([touchlock])
3832 dnl Debian, at least:
3833 AC_CHECK_LIB([lockfile], [maillock], [have_lockfile=yes], [have_lockfile=no])
3834 if test $have_lockfile = yes; then
3835 LIBS_MAIL=-llockfile
3836 AC_DEFINE([HAVE_LIBLOCKFILE], [1],
3837 [Define to 1 if you have the 'lockfile' library (-llockfile).])
3839 # If we have the shared liblockfile, assume we must use it for mail
3840 # locking (e.g. Debian). If we couldn't link against liblockfile
3841 # (no liblockfile.a installed), ensure that we don't need to.
3842 dnl This works for files generally, not just executables.
3843 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3844 AC_CHECK_PROG([liblockfile], [liblockfile.so], [yes], [no],
3845 [/usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH])
3846 if test "$ac_cv_prog_liblockfile" = yes; then
3847 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3848 This probably means that movemail could lose mail.
3849 There may be a 'development' package to install containing liblockfile.])
3852 AC_CHECK_HEADERS([maillock.h])
3854 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3855 ## interlock access to the mail spool. The alternative is a lock file named
3856 ## /usr/spool/mail/$USER.lock.
3859 aix4-2) mail_lock="lockf" ;;
3861 gnu|freebsd|dragonfly|netbsd|openbsd|darwin) mail_lock="flock" ;;
3863 ## On GNU/Linux systems, both methods are used by various mail programs.
3864 ## I assume most people are using newer mailers that have heard of flock.
3865 ## Change this if you need to.
3866 ## Debian contains a patch which says: "On Debian/GNU/Linux systems,
3867 ## configure gets the right answers, and that means *NOT* using flock.
3868 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3869 ## for details." and then uses '#ifdef DEBIAN'. Unfortunately the
3870 ## Debian maintainer hasn't provided a clean fix for Emacs.
3871 ## movemail.c will use 'maillock' when MAILDIR, HAVE_LIBMAIL and
3872 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3873 ## correct logic. -- fx
3874 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3875 ## liblockfile is a Free Software replacement for libmail, used on
3876 ## Debian systems and elsewhere. -rfr.
3879 if test $have_mail = yes || test $have_lockfile = yes; then
3880 test $ac_cv_header_maillock_h = yes && mail_lock=no
3884 mail_lock="none-needed" ;;
3888 flock) AC_DEFINE([MAIL_USE_FLOCK], [1],
3889 [Define if the mailer uses flock to interlock the mail spool.]);;
3891 lockf) AC_DEFINE([MAIL_USE_LOCKF], [1],
3892 [Define if the mailer uses lockf to interlock the mail spool.]);;
3896 *) BLESSMAIL_TARGET="need-blessmail" ;;
3899 AC_SUBST([BLESSMAIL_TARGET])
3900 AC_SUBST([LIBS_MAIL])
3903 LIBS="$LIB_PTHREAD $LIB_MATH $LIBS"
3904 AC_CHECK_FUNCS(accept4 fchdir gethostname \
3905 getrusage get_current_dir_name \
3906 lrand48 random rint trunc \
3907 select getpagesize setlocale newlocale \
3908 getrlimit setrlimit shutdown \
3909 pthread_sigmask strsignal setitimer \
3910 sendto recvfrom getsockname getifaddrs freeifaddrs \
3912 getpwent endpwent getgrent endgrent \
3913 cfmakeraw cfsetspeed __executable_start log2 prctl)
3916 dnl No need to check for posix_memalign if aligned_alloc works.
3917 AC_CHECK_FUNCS([aligned_alloc posix_memalign], [break])
3918 AC_CHECK_DECLS([aligned_alloc], [], [], [[#include <stdlib.h>]])
3920 dnl Cannot use AC_CHECK_FUNCS
3921 AC_CACHE_CHECK([for __builtin_unwind_init],
3922 emacs_cv_func___builtin_unwind_init,
3923 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3924 emacs_cv_func___builtin_unwind_init=yes,
3925 emacs_cv_func___builtin_unwind_init=no)])
3926 if test $emacs_cv_func___builtin_unwind_init = yes; then
3927 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3928 [Define to 1 if you have the '__builtin_unwind_init' function.])
3931 AC_CHECK_HEADERS_ONCE(sys/un.h)
3936 AC_CHECK_FUNCS(grantpt)
3938 # PTY-related GNU extensions.
3939 AC_CHECK_FUNCS(getpt posix_openpt)
3941 # Check this now, so that we will NOT find the above functions in ncurses.
3942 # That is because we have not set up to link ncurses in lib-src.
3943 # It's better to believe a function is not available
3944 # than to expect to find it in ncurses.
3945 # Also we need tputs and friends to be able to build at all.
3946 AC_MSG_CHECKING([for library containing tputs])
3947 # Run a test program that contains a call to tputs, a call that is
3948 # never executed. This tests whether a pre-'main' dynamic linker
3949 # works with the library. It's too much trouble to actually call
3950 # tputs in the test program, due to portability hassles. When
3951 # cross-compiling, assume the test program will run if it links.
3952 AC_DEFUN([tputs_link_source], [
3954 [[extern void tputs (const char *, int, int (*)(int));
3955 int main (int argc, char **argv)
3958 tputs (argv[0], 0, 0);
3962 if test "${opsys}" = "mingw32"; then
3965 # Maybe curses should be tried earlier?
3966 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3967 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3969 if test -z "$tputs_library"; then
3973 LIBS_TERMCAP=-l$tputs_library
3975 LIBS="$LIBS_TERMCAP $LIBS"
3977 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3978 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3980 if test "X$msg" != Xno; then
3985 AC_MSG_RESULT([$msg])
3986 if test "X$msg" = Xno; then
3987 AC_MSG_ERROR([The required function 'tputs' was not found in any library.
3988 The following libraries were tried (in order):
3989 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3990 Please try installing whichever of these libraries is most appropriate
3991 for your system, together with its header files.
3992 For example, a libncurses-dev(el) or similar package.])
3995 ## Use termcap instead of terminfo?
3996 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3998 ## FIXME? In the cases below where we unconditionally set
3999 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
4000 ## if that was found above to have tputs.
4001 ## Should we use the gnu* logic everywhere?
4003 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
4004 ## The ncurses library has been moved out of the System framework in
4005 ## Mac OS X 10.2. So if configure detects it, set the command-line
4006 ## option to use it.
4007 darwin) LIBS_TERMCAP="-lncurses" ;;
4009 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
4012 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
4013 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
4014 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
4015 [[#if __FreeBSD_version < 400000
4018 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
4020 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
4022 if test $emacs_cv_freebsd_terminfo = yes; then
4023 LIBS_TERMCAP="-lncurses"
4026 LIBS_TERMCAP="-ltermcap"
4036 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
4038 LIBS_TERMCAP="-ltermcap"
4042 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
4044 ## hpux: Make sure we get select from libc rather than from libcurses
4045 ## because libcurses on HPUX 10.10 has a broken version of select.
4046 ## We used to use -lc -lcurses, but this may be cleaner.
4047 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
4048 # set that way, now it uses the default). Isn't this a contradiction?
4049 hpux*) LIBS_TERMCAP="-ltermcap" ;;
4053 TERMCAP_OBJ=tparam.o
4054 if test $TERMINFO = yes; then
4055 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
4056 TERMCAP_OBJ=terminfo.o
4058 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
4059 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
4061 AC_SUBST(LIBS_TERMCAP)
4062 AC_SUBST(TERMCAP_OBJ)
4064 # GNU/Linux-specific timer functions.
4065 AC_CACHE_CHECK([for timerfd interface], [emacs_cv_have_timerfd],
4067 [AC_LANG_PROGRAM([[#include <sys/timerfd.h>
4069 [[timerfd_create (CLOCK_REALTIME,
4070 TFD_CLOEXEC | TFD_NONBLOCK);
4071 timerfd_settime (0, TFD_TIMER_ABSTIME, 0, 0);]])],
4072 [emacs_cv_have_timerfd=yes],
4073 [emacs_cv_have_timerfd=no])])
4074 if test "$emacs_cv_have_timerfd" = yes; then
4075 AC_DEFINE([HAVE_TIMERFD], 1,
4076 [Define to 1 if timerfd functions are supported as in GNU/Linux.])
4079 # Alternate stack for signal handlers.
4080 AC_CACHE_CHECK([whether signals can be handled on alternate stack],
4081 [emacs_cv_alternate_stack],
4083 [AC_LANG_PROGRAM([[#include <signal.h>
4086 struct sigaction sa;
4087 ss.ss_sp = malloc (SIGSTKSZ);
4088 ss.ss_size = SIGSTKSZ;
4089 sa.sa_flags = SA_SIGINFO | SA_ONSTACK;
4090 sigaltstack (&ss, 0);
4091 sigaction (SIGSEGV, &sa, 0);]])],
4092 [emacs_cv_alternate_stack=yes],
4093 [emacs_cv_alternate_stack=no])])
4095 # Do we need the Hesiod library to provide the support routines?
4096 dnl FIXME? Should we be skipping this on Darwin too?
4099 if test "$with_hesiod" != no ; then
4100 # Don't set $LIBS here -- see comments above. FIXME which comments?
4102 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
4103 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
4104 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
4105 if test "$resolv" = yes ; then
4111 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
4112 hesiod=yes, :, $RESOLVLIB)])
4114 if test x"$hesiod" = xyes; then
4116 LIBRESOLV=$RESOLVLIB
4122 # These tell us which Kerberos-related libraries to use.
4129 if test "${with_kerberos}" != no; then
4131 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
4132 if test $have_com_err = yes; then
4133 COM_ERRLIB=-lcom_err
4134 LIBS="$COM_ERRLIB $LIBS"
4136 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
4137 if test $have_crypto = yes; then
4139 LIBS="$CRYPTOLIB $LIBS"
4141 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
4142 if test $have_k5crypto = yes; then
4143 CRYPTOLIB=-lk5crypto
4144 LIBS="$CRYPTOLIB $LIBS"
4146 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
4147 if test $have_krb5=yes; then
4149 LIBS="$KRB5LIB $LIBS"
4151 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
4152 if test "${with_kerberos5}" = no; then
4153 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
4154 if test $have_des425 = yes; then
4156 LIBS="$DESLIB $LIBS"
4158 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
4159 if test $have_des = yes; then
4161 LIBS="$DESLIB $LIBS"
4164 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
4165 if test $have_krb4 = yes; then
4167 LIBS="$KRB4LIB $LIBS"
4169 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
4170 if test $have_krb = yes; then
4172 LIBS="$KRB4LIB $LIBS"
4177 if test "${with_kerberos5}" != no; then
4178 AC_CHECK_HEADERS(krb5.h,
4179 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
4180 [#include <krb5.h>])])
4182 AC_CHECK_HEADERS(krb.h,,
4183 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
4184 [AC_CHECK_HEADERS(kerberos/krb.h)])])
4186 AC_CHECK_HEADERS(com_err.h)
4190 AC_SUBST(COM_ERRLIB)
4196 AC_CHECK_HEADERS(valgrind/valgrind.h)
4198 AC_CHECK_MEMBERS([struct unipair.unicode], [], [], [[#include <linux/kd.h>]])
4200 AC_CHECK_FUNCS_ONCE([sbrk])
4203 AC_CHECK_FUNC(socket, , ok_so_far=no)
4204 if test $ok_so_far = yes; then
4205 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
4207 if test $ok_so_far = yes; then
4208 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
4210 if test $ok_so_far = yes; then
4211 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
4212 AC_DEFINE(HAVE_INET_SOCKETS, 1,
4213 [Define to 1 if you have inet sockets.])
4218 AC_CHECK_FUNCS(snprintf)
4220 dnl Check for glib. This differs from other library checks in that
4221 dnl Emacs need not link to glib unless some other library is already
4222 dnl linking to glib. Although glib provides no facilities that Emacs
4223 dnl needs for its own purposes, when glib is present Emacs needs to
4224 dnl use primitives like g_main_context_query to avoid clashing with
4225 dnl glib at a low level.
4227 dnl Check this late, since it depends on $GTK_CFLAGS etc.
4231 CFLAGS="$CFLAGS $GTK_CFLAGS $RSVG_CFLAGS $DBUS_CFLAGS $SETTINGS_CFLAGS"
4232 LIBS="$LIBS $GTK_LIBS $RSVG_LIBS $DBUS_LIBS $SETTINGS_LIBS"
4233 CFLAGS="$CFLAGS $NOTIFY_CFLAGS $CAIRO_CFLAGS"
4234 LIBS="$LIBS $NOTIFY_LIBS $CAIRO_LIBS"
4235 AC_MSG_CHECKING([whether GLib is linked in])
4236 AC_LINK_IFELSE([AC_LANG_PROGRAM(
4239 [[g_print ("Hello world");]])],
4242 AC_MSG_RESULT([$links_glib])
4243 if test "${links_glib}" = "yes"; then
4244 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
4245 if test "$HAVE_NS" = no;then
4253 dnl Adapted from Haible's version.
4254 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
4255 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
4256 [[char* cs = nl_langinfo(CODESET);]])],
4257 emacs_cv_langinfo_codeset=yes,
4258 emacs_cv_langinfo_codeset=no)
4260 if test $emacs_cv_langinfo_codeset = yes; then
4261 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
4262 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
4267 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
4268 dnl how the tty code is related to POSIX and/or other versions of termios.
4269 dnl The following looks like a useful start.
4271 dnl AC_SYS_POSIX_TERMIOS
4272 dnl if test $ac_cv_sys_posix_termios = yes; then
4273 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
4274 dnl and macros for terminal control.])
4275 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
4278 dnl Turned on June 1996 supposing nobody will mind it.
4279 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
4280 if test "${opsys}" != "mingw32"; then
4281 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
4282 in the full name stands for the login id.])
4285 dnl Everybody supports this, except MS.
4286 dnl Seems like the kind of thing we should be testing for, though.
4287 ## Note: PTYs are broken on darwin <6. Use at your own risk.
4288 if test "${opsys}" != "mingw32"; then
4289 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
4292 dnl Everybody supports this, except MS-DOS.
4293 dnl Seems like the kind of thing we should be testing for, though.
4294 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
4295 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
4296 4.2-compatible sockets.])
4298 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
4300 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
4301 a null file, or a data sink.])
4302 if test "${opsys}" = "mingw32"; then
4303 AC_DEFINE(NULL_DEVICE, ["NUL:"])
4305 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
4308 if test "${opsys}" = "mingw32"; then
4313 AC_DEFINE_UNQUOTED(SEPCHAR, ['$SEPCHAR'], [Character that separates PATH elements.])
4314 dnl This is for MinGW, and is used in test/Makefile.in.
4315 dnl The MSYS Bash has heuristics for replacing ':' with ';' when it
4316 dnl decides that a command-line argument to be passed to a MinGW program
4317 dnl is a PATH-style list of directories. But that heuristics plays it
4318 dnl safe, and only does the replacement when it is _absolutely_ sure it
4319 dnl sees a colon-separated list of file names; e.g. ":." is left alone,
4320 dnl which breaks in-tree builds. So we do this manually instead.
4321 dnl Note that we cannot rely on PATH_SEPARATOR, as that one will always
4322 dnl be computed as ':' in MSYS Bash.
4325 dnl Everybody supports this, except MS-DOS.
4326 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
4328 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
4331 AC_DEFINE(DIRECTORY_SEP, ['/'],
4332 [Character that separates directories in a file name.])
4334 if test "${opsys}" = "mingw32"; then
4335 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
4336 [Returns true if character is a device separator.])
4338 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
4339 [Returns true if character is a directory separator.])
4341 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
4342 [Returns true if character is any form of separator.])
4344 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
4345 [Returns true if character is a device separator.])
4347 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
4348 [Returns true if character is a directory separator.])
4350 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
4351 [Returns true if character is any form of separator.])
4354 if test "$USE_X_TOOLKIT" != "none"; then
4358 dnl Assar Westerlund <assar@sics.se> says this is necessary
4359 dnl for HP-UX 10.20, and that it works for HP-UX 0 as well.
4363 if test "$have_editres" != no && test ! -z "$LIBXMU"; then
4365 dnl See libXmu.a check above.
4366 if test x$HAVE_X11XTR6 = xyes; then
4367 LIBS="-lXt -lSM -lICE $LIBXMU"
4369 OTHERLIBS="-lXt -$LIBXMU"
4372 [#include <X11/Intrinsic.h>
4373 #include <X11/Xmu/Editres.h>],
4374 [_XEditResCheckMessages (0, 0, 0, 0);],
4375 [AC_DEFINE([X_TOOLKIT_EDITRES], 1,
4376 [Define to 1 if we should use XEditRes.])])
4383 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
4384 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
4385 dnl need the constant to dimension an array. So wire in the appropriate
4387 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
4391 emacs_broken_SIGIO=no
4394 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
4395 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
4396 hpux* | nacl | openbsd | sol2* | unixware )
4397 emacs_broken_SIGIO=yes
4401 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
4402 dnl the way this system works, libc functions that return malloced
4403 dnl memory use the libc malloc implementation. Calling xfree or
4404 dnl xrealloc on the results of such functions results in a crash.
4406 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
4407 dnl but that does not currently work on this system.
4409 dnl It is possible to completely override the malloc implementation on
4410 dnl AIX, but that involves putting the malloc functions in a shared
4411 dnl library and setting the MALLOCTYPE environment variable to point to
4412 dnl that shared library.
4414 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
4415 dnl to avoid a crash just use the Emacs implementation for that function.
4417 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
4418 dnl of this file, so that we do not check for get_current_dir_name
4419 dnl on AIX. But that might be fragile if something else ends
4420 dnl up testing for get_current_dir_name as a dependency.
4421 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
4422 get_current_dir_name should not be used.])
4426 dnl Circumvent a bug in FreeBSD. In the following sequence of
4427 dnl writes/reads on a PTY, read(2) returns bogus data:
4429 dnl write(2) 1022 bytes
4430 dnl write(2) 954 bytes, get EAGAIN
4431 dnl read(2) 1024 bytes in process_read_output
4432 dnl read(2) 11 bytes in process_read_output
4434 dnl That is, read(2) returns more bytes than have ever been written
4435 dnl successfully. The 1033 bytes read are the 1022 bytes written
4436 dnl successfully after processing (for example with CRs added if the
4437 dnl terminal is set up that way which it is here). The same bytes will
4438 dnl be seen again in a later read(2), without the CRs.
4439 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
4440 work around an issue when reading from a PTY.])
4446 dnl FIXME Can't we test if this exists (eg /proc/$$)?
4447 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
4452 darwin | dragonfly | freebsd | netbsd | openbsd )
4453 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
4454 close a pty to make it a controlling terminal (it is already a
4455 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
4459 dnl FIXME Surely we can test for this rather than hard-code it.
4461 netbsd | openbsd) sound_device="/dev/audio" ;;
4462 *) sound_device="/dev/dsp" ;;
4466 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
4467 [Name of the default sound device.])
4470 dnl Emacs can read input using SIGIO and buffering characters itself,
4471 dnl or using CBREAK mode and making C-g cause SIGINT.
4472 dnl The choice is controlled by the variable interrupt_input.
4474 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
4476 dnl Emacs uses the presence of the USABLE_SIGIO macro
4477 dnl to indicate whether or not signal-driven I/O is possible. It uses
4478 dnl INTERRUPT_INPUT to decide whether to use it by default.
4480 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
4481 dnl CBREAK mode has two disadvantages
4482 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
4483 dnl I hear that in system V this problem does not exist.
4484 dnl 2) Control-G causes output to be discarded.
4485 dnl I do not know whether this can be fixed in system V.
4487 dnl Another method of doing input is planned but not implemented.
4488 dnl It would have Emacs fork off a separate process
4489 dnl to read the input and send it to the true Emacs process
4492 darwin | gnu-linux | gnu-kfreebsd )
4493 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
4498 dnl If the system's imake configuration file defines 'NeedWidePrototypes'
4499 dnl as 'NO', we must define NARROWPROTO manually. Such a define is
4500 dnl generated in the Makefile generated by 'xmkmf'. If we don't define
4501 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
4502 dnl taking float or double parameters.
4504 cygwin|gnu|gnu-linux|gnu-kfreebsd|freebsd|netbsd|openbsd)
4505 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
4506 file defines 'NeedWidePrototypes' as 'NO'.])
4511 dnl Used in process.c, this must be a loop, even if it only runs once.
4512 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
4513 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
4514 dnl trying suffixes 0-16.
4515 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
4516 first PTY, if PTYs are supported.])
4517 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
4518 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
4519 end of a PTY, if non-standard.])
4520 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
4521 end of a PTY, if non-standard.])
4525 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4526 dnl You allocate a pty by opening /dev/ptc to get the master side.
4527 dnl To get the name of the slave side, you just ttyname() the master side.
4528 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4529 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4533 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4534 dnl multi-line AC_DEFINEs are hard. :(
4535 AC_DEFINE(PTY_OPEN, [ do { int dummy; sigset_t blocked, procmask; sigemptyset (&blocked); sigaddset (&blocked, SIGCHLD); pthread_sigmask (SIG_BLOCK, &blocked, &procmask); if (-1 == openpty (&fd, &dummy, pty_name, 0, 0)) fd = -1; pthread_sigmask (SIG_SETMASK, &procmask, 0); if (fd >= 0) emacs_close (dummy); } while (false)])
4536 AC_DEFINE(PTY_NAME_SPRINTF, [])
4537 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4541 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4544 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd | darwin | nacl )
4546 if test "x$ac_cv_func_grantpt" = xyes; then
4547 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4548 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4549 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4550 dnl to prevent sigchld_handler from intercepting the child's death.
4551 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptyname = 0; sigset_t blocked; sigemptyset (&blocked); sigaddset (&blocked, SIGCHLD); pthread_sigmask (SIG_BLOCK, &blocked, 0); if (grantpt (fd) != -1 && unlockpt (fd) != -1) ptyname = ptsname(fd); pthread_sigmask (SIG_UNBLOCK, &blocked, 0); if (!ptyname) { emacs_close (fd); return -1; } snprintf (pty_name, PTY_NAME_SIZE, "%s", ptyname); }])
4552 dnl if HAVE_POSIX_OPENPT
4553 if test "x$ac_cv_func_posix_openpt" = xyes; then
4554 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (false)])
4555 AC_DEFINE(PTY_NAME_SPRINTF, [])
4557 elif test "x$ac_cv_func_getpt" = xyes; then
4558 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4559 AC_DEFINE(PTY_NAME_SPRINTF, [])
4561 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4564 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4569 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4570 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4571 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4575 dnl On SysVr4, grantpt(3) forks a subprocess, so do not use
4576 dnl O_CLOEXEC when opening the pty, and keep the SIGCHLD handler
4577 dnl from intercepting that death. If any child but grantpt's should die
4578 dnl within, it should be caught after sigrelse(2).
4579 AC_DEFINE(PTY_OPEN, [fd = open (pty_name, O_RDWR | O_NONBLOCK)])
4580 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptsname (int), *ptyname; int grantpt_result; sigset_t blocked; sigemptyset (&blocked); sigaddset (&blocked, SIGCHLD); pthread_sigmask (SIG_BLOCK, &blocked, 0); grantpt_result = grantpt (fd); pthread_sigmask (SIG_UNBLOCK, &blocked, 0); if (grantpt_result == -1 || unlockpt (fd) == -1 || !(ptyname = ptsname (fd))) { emacs_close (fd); return -1; } snprintf (pty_name, PTY_NAME_SIZE, "%s", ptyname); }])
4584 dnl Comments are as per sol2*.
4585 AC_DEFINE(PTY_OPEN, [fd = open (pty_name, O_RDWR | O_NONBLOCK)])
4586 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptsname (int), *ptyname; int grantpt_result; sigset_t blocked; sigemptyset (&blocked); sigaddset (&blocked, SIGCHLD); pthread_sigmask (SIG_BLOCK, &blocked, 0); grantpt_result = grantpt (fd); pthread_sigmask (SIG_UNBLOCK, &blocked, 0); if (grantpt_result == -1) fatal("could not grant slave pty"); if (unlockpt(fd) == -1) fatal("could not unlock slave pty"); if (!(ptyname = ptsname(fd))) fatal ("could not enable slave pty"); snprintf (pty_name, PTY_NAME_SIZE, "%s", ptyname); }])
4593 dnl This change means that we don't loop through allocate_pty too
4594 dnl many times in the (rare) event of a failure.
4595 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4596 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4597 dnl Push various streams modules onto a PTY channel. Used in process.c.
4598 AC_DEFINE(SETUP_SLAVE_PTY, [if (ioctl (forkin, I_PUSH, "ptem") == -1) fatal ("ioctl I_PUSH ptem"); if (ioctl (forkin, I_PUSH, "ldterm") == -1) fatal ("ioctl I_PUSH ldterm"); if (ioctl (forkin, I_PUSH, "ttcompat") == -1) fatal ("ioctl I_PUSH ttcompat");], [How to set up a slave PTY, if needed.])
4603 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4604 "typing" a signal character on the pty.])
4607 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4608 aix4-2 | cygwin | gnu | dragonfly | freebsd | netbsd | openbsd | darwin )
4609 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4612 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4613 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4614 gnu-linux | gnu-kfreebsd )
4616 AC_MSG_CHECKING([for signals via characters])
4617 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4618 #include <linux/version.h>
4619 #if LINUX_VERSION_CODE < 0x20400
4620 # error "Linux version too old"
4622 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4624 AC_MSG_RESULT([$emacs_signals_via_chars])
4625 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4630 AH_TEMPLATE(TAB3, [Undocumented.])
4633 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4635 gnu | dragonfly | freebsd | netbsd | openbsd )
4636 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4637 AC_DEFINE(TAB3, OXTABS)
4640 gnu-linux | gnu-kfreebsd )
4641 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4645 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4646 [do { extern void *__libc_ia64_register_backing_store_base; __builtin_ia64_flushrs (); mark_memory (__libc_ia64_register_backing_store_base, __builtin_ia64_bsp ());} while (false)],
4647 [Mark a secondary stack, like the register stack on the ia64.]), [])
4651 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4652 run_time_remap; for HPUX.])
4657 dnl This won't be used automatically yet. We also need to know, at least,
4658 dnl that the stack is continuous.
4659 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4660 registers relevant for conservative garbage collection in the jmp_buf.])
4664 dnl Not all the architectures are tested, but there are Debian packages
4665 dnl for SCM and/or Guile on them, so the technique must work. See also
4666 dnl comments in alloc.c concerning setjmp and gcc.
4667 dnl Fixme: it's probably safe to just use the GCC conditional below.
4668 gnu-linux | gnu-kfreebsd )
4669 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4670 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4671 || defined __alpha__ || defined __mips__ || defined __s390__ \
4672 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4673 || defined __ia64__ || defined __sh__
4676 # error "setjmp not known to work on this arch"
4678 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4683 if test x$GCC = xyes; then
4684 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4685 AC_DEFINE(GC_SETJMP_WORKS, 1)
4688 aix* | dragonfly | freebsd | netbsd | openbsd | sol2* )
4689 AC_DEFINE(GC_SETJMP_WORKS, 1)
4694 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4695 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4698 [[#include <setjmp.h>
4700 # define _longjmp longjmp
4705 _longjmp (j, 1);]])],
4706 [emacs_cv_func__setjmp=yes],
4707 [emacs_cv_func__setjmp=no])])
4708 if test $emacs_cv_func__setjmp = yes; then
4709 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4712 # We need to preserve signal mask to handle C stack overflows.
4713 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4716 [[#include <setjmp.h>
4719 if (! sigsetjmp (j, 1))
4720 siglongjmp (j, 1);]])],
4721 [emacs_cv_func_sigsetjmp=yes],
4722 [emacs_cv_func_sigsetjmp=no])])
4723 if test $emacs_cv_func_sigsetjmp = yes; then
4724 AC_DEFINE([HAVE_SIGSETJMP], 1,
4725 [Define to 1 if sigsetjmp and siglongjmp work.])
4728 case $emacs_cv_func_sigsetjmp,$emacs_cv_alternate_stack,$opsys in
4729 yes,yes,* | *,*,mingw32)
4730 AC_DEFINE([HAVE_STACK_OVERFLOW_HANDLING], 1,
4731 [Define to 1 if C stack overflow can be handled in some cases.]);;
4736 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4737 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4738 dnl and this is all we need.
4739 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4746 dnl Used in xfaces.c.
4747 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4748 some systems, where it requires time.h.])
4753 dnl Define symbols to identify the version of Unix this is.
4754 dnl Define all the symbols that apply correctly.
4755 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4756 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4757 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4758 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4763 dnl This symbol should be defined on AIX Version 3 ???????
4764 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4766 # error "_AIX not defined"
4768 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4772 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4776 dnl Not __APPLE__, as this may not be defined on non-macOS Darwin.
4777 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4778 dnl distinguish macOS from pure Darwin.
4779 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4782 gnu-linux | gnu-kfreebsd )
4784 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4789 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4793 AC_DEFINE(DOS_NT, [])
4794 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4795 if test "x$ac_enable_checking" != "x" ; then
4796 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4802 AC_DEFINE(USG5_4, [])
4803 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4808 AC_DEFINE(USG5_4, [])
4812 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4815 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4816 emacs_cv_usable_FIONREAD=no
4820 emacs_cv_usable_FIONREAD=yes
4825 [AC_LANG_PROGRAM([[#include <sys/types.h>
4826 #include <sys/ioctl.h>
4828 # include <sys/filio.h>
4831 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4832 [emacs_cv_usable_FIONREAD=yes],
4833 [emacs_cv_usable_FIONREAD=no])
4836 if test $emacs_cv_usable_FIONREAD = yes; then
4837 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4839 if test $emacs_broken_SIGIO = no; then
4840 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4842 [AC_LANG_PROGRAM([[#include <fcntl.h>
4845 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4846 [emacs_cv_usable_SIGIO=yes],
4847 [emacs_cv_usable_SIGIO=no])],
4848 [emacs_cv_usable_SIGIO=yes],
4849 [emacs_cv_usable_SIGIO=no])
4850 if test $emacs_cv_usable_SIGIO = yes; then
4851 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4858 dnl It works to open the pty's tty in the parent (Emacs), then
4859 dnl close and reopen it in the child.
4860 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4861 works to open a pty's tty in the parent process, then close and
4862 reopen it in the child.])
4866 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4871 # Set up the CFLAGS for real compilation, so we can substitute it.
4872 CFLAGS="$REAL_CFLAGS"
4873 CPPFLAGS="$REAL_CPPFLAGS"
4876 ## Hack to detect a buggy GCC version.
4877 if test "$GCC" = yes && \
4878 $CC --version 2> /dev/null | grep 'gcc.* 4.5.0' >/dev/null; then
4880 *-fno-optimize-sibling-calls*) ;;
4882 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS.]);;
4886 version=$PACKAGE_VERSION
4888 copyright="Copyright (C) 2017 Free Software Foundation, Inc."
4889 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4890 [Short copyright string for this version of Emacs.])
4893 ### Specify what sort of things we'll be editing into Makefile and config.h.
4894 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4896 AC_SUBST(configuration)
4901 AC_SUBST(exec_prefix)
4904 AC_SUBST(sharedstatedir)
4905 AC_SUBST(libexecdir)
4909 AC_SUBST(standardlisppath)
4910 AC_SUBST(locallisppath)
4912 AC_SUBST(x_default_search_path)
4914 AC_SUBST(archlibdir)
4920 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4921 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4922 ## end of LIBX_BASE, but nothing ever set it.
4923 AC_SUBST(LD_SWITCH_X_SITE)
4924 AC_SUBST(C_SWITCH_X_SITE)
4925 AC_SUBST(GNUSTEP_CFLAGS)
4927 ## Used in lwlib/Makefile.in.
4928 AC_SUBST(X_TOOLKIT_TYPE)
4930 AC_SUBST(ns_appbindir)
4931 AC_SUBST(ns_appresdir)
4933 AC_SUBST(GNU_OBJC_CFLAGS)
4934 AC_SUBST(OTHER_FILES)
4936 if test -n "${term_header}"; then
4937 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4938 [Define to the header for the built-in window system.])
4941 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4942 [Define to the canonical Emacs configuration name.])
4943 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4944 [Define to the options passed to configure.])
4949 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4950 AC_DEFINE(HAVE_X_WINDOWS, 1,
4951 [Define to 1 if you want to use the X window system.])
4953 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4955 if test "$HAVE_CAIRO" = "yes"; then
4956 FONT_OBJ="ftfont.o ftcrfont.o"
4957 elif test "$HAVE_XFT" = "yes"; then
4958 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4959 elif test "$HAVE_FREETYPE" = "yes"; then
4960 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4970 if test "${USE_X_TOOLKIT}" != "none" ; then
4972 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4973 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4974 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4975 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4976 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4980 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4981 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4985 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4986 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4987 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4991 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4992 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4995 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4998 AC_SUBST(WIDGET_OBJ)
5001 case "$USE_X_TOOLKIT" in
5002 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
5003 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
5004 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
5006 if test "$HAVE_XWIDGETS" = "yes"; then
5007 TOOLKIT_LIBW="$TOOLKIT_LIBW -lXcomposite"
5009 AC_SUBST(TOOLKIT_LIBW)
5011 if test "${opsys}" != "mingw32"; then
5012 if test "$USE_X_TOOLKIT" = "none"; then
5013 LIBXT_OTHER="\$(LIBXSM)"
5015 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
5018 AC_SUBST(LIBXT_OTHER)
5020 if test "${HAVE_X11}" = "yes" ; then
5021 AC_DEFINE(HAVE_X11, 1,
5022 [Define to 1 if you want to use version 11 of X windows.])
5023 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
5027 AC_SUBST(LIBX_OTHER)
5030 if test "$HAVE_GTK" = yes || test "$HAVE_X11" != yes; then
5032 elif test "$USE_X_TOOLKIT" = none; then
5034 LIBXMENU='$(oldXMenudir)/libXMenu11.a'
5035 AUTODEPEND_PARENTS="$AUTODEPEND_PARENTS oldXMenu"
5037 LIBXMENU='$(lwlibdir)/liblw.a'
5038 AUTODEPEND_PARENTS="$AUTODEPEND_PARENTS lwlib"
5042 AC_CACHE_CHECK([for struct alignment],
5043 [emacs_cv_struct_alignment],
5045 [AC_LANG_PROGRAM([[#include <stddef.h>
5046 struct __attribute__ ((aligned (8))) s { char c; };
5047 struct t { char c; struct s s; };
5048 char verify[offsetof (struct t, s) == 8 ? 1 : -1];
5050 [emacs_cv_struct_alignment=yes],
5051 [emacs_cv_struct_alignment=no])])
5052 if test "$emacs_cv_struct_alignment" = yes; then
5053 AC_DEFINE([HAVE_STRUCT_ATTRIBUTE_ALIGNED], 1,
5054 [Define to 1 if 'struct __attribute__ ((aligned (N)))' aligns the
5055 structure to an N-byte boundary.])
5058 if test "${GNU_MALLOC}" = "yes" ; then
5059 AC_DEFINE(GNU_MALLOC, 1,
5060 [Define to 1 if you want to use the GNU memory allocator.])
5064 if test "${REL_ALLOC}" = "yes" ; then
5065 AC_DEFINE(REL_ALLOC, 1,
5066 [Define REL_ALLOC if you want to use the relocating allocator for
5069 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
5071 AC_SUBST(RALLOC_OBJ)
5073 if test "$opsys" = "cygwin"; then
5074 CYGWIN_OBJ="cygw32.o"
5075 ## Cygwin differs because of its unexec().
5077 POST_ALLOC_OBJ=lastfile.o
5078 elif test "$opsys" = "mingw32"; then
5081 POST_ALLOC_OBJ=lastfile.o
5084 PRE_ALLOC_OBJ=lastfile.o
5087 AC_SUBST(CYGWIN_OBJ)
5088 AC_SUBST(PRE_ALLOC_OBJ)
5089 AC_SUBST(POST_ALLOC_OBJ)
5091 dnl Call this 'FORTIFY_SOUR' so that it sorts before the 'FORTIFY_SOURCE'
5092 dnl verbatim defined above. The tricky name is apropos, as this hack
5093 dnl makes Fortify go sour!
5094 AH_VERBATIM([FORTIFY_SOUR],
5095 [/* Without the following workaround, Emacs runs slowly on OS X 10.8.
5096 The workaround disables some useful run-time checking, so it
5097 should be conditional to the platforms with the performance bug.
5098 Perhaps Apple will fix this some day; also see m4/extern-inline.m4. */
5099 #if defined __APPLE__ && defined __GNUC__
5100 # ifndef _DONT_USE_CTYPE_INLINE_
5101 # define _DONT_USE_CTYPE_INLINE_
5103 # ifndef _FORTIFY_SOURCE
5104 # define _FORTIFY_SOURCE 0
5109 # If user asks to omit features, disable optional features that gnulib
5110 # might otherwise enable.
5111 if test "$with_features" = no && test "$enable_acl" != yes; then
5115 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
5116 # it temporarily reverts them to their pre-pkg-config values,
5117 # because gnulib needs to work with both src (which uses the
5118 # pkg-config stuff) and lib-src (which does not). For example, gnulib
5119 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
5120 # and it therefore needs to run in an environment where LIBS does not
5121 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
5122 # for some package unrelated to lib-src.
5125 CFLAGS=$pre_PKG_CONFIG_CFLAGS
5126 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
5127 gl_ASSERT_NO_GNULIB_POSIXCHECK
5128 gl_ASSERT_NO_GNULIB_TESTS
5133 if test "${opsys}" = "mingw32"; then
5134 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I \${abs_top_srcdir}/nt/inc"
5135 # Remove unneeded switches from the value of CC that goes to Makefiles
5136 CC=`AS_ECHO(["$CC"]) | sed -e "s,$GCC_TEST_OPTIONS,,"`
5140 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
5142 cygwin) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000" ;;
5145 ## The -headerpad option tells ld (see man page) to leave room at the
5146 ## end of the header for adding load commands. Needed for dumping.
5147 ## 0x1000 is enough for roughly 52 load commands on the x86_64
5148 ## architecture (where they are 78 bytes each). The actual number of
5149 ## load commands added is not consistent but normally ranges from
5150 ## about 14 to about 34. Setting it high gets us plenty of slop and
5151 ## only costs about 1.5K of wasted binary space.
5152 headerpad_extra=1000
5153 if test "$HAVE_NS" = "yes"; then
5154 libs_nsgui="-framework AppKit"
5155 if test "$NS_IMPL_COCOA" = "yes"; then
5156 libs_nsgui="$libs_nsgui -framework IOKit"
5161 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
5163 ## This is here because src/Makefile.in did some extra fiddling around
5164 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
5165 ## LD_SWITCH_SYSTEM_TEMACS instead,
5166 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
5167 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
5170 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
5171 ## find X at run-time.
5172 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
5173 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
5174 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
5175 ## had different values in configure (in ac_link) and src/Makefile.in.
5176 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
5177 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
5180 ## Is it any better under MinGW64 to relocate emacs into higher addresses?
5181 case "$canonical" in
5182 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x400000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
5183 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
5187 *) LD_SWITCH_SYSTEM_TEMACS= ;;
5190 # -no-pie or -nopie fixes a temacs segfault on Gentoo, OpenBSD,
5191 # Ubuntu, and other systems with "hardened" GCC configurations for
5192 # some reason (Bug#18784). We don't know why this works, but not
5193 # segfaulting is better than segfaulting. Use ac_c_werror_flag=yes
5194 # when trying the option, otherwise clang keeps warning that it does
5195 # not understand it, and pre-4.6 GCC has a similar problem
5196 # (Bug#20338). Prefer -no-pie to -nopie, as -no-pie is the
5197 # spelling used by GCC 6.1.0 and later (Bug#24682).
5199 [for $CC option to disable position independent executables],
5200 [emacs_cv_prog_cc_no_pie],
5201 [emacs_save_c_werror_flag=$ac_c_werror_flag
5202 emacs_save_LDFLAGS=$LDFLAGS
5203 ac_c_werror_flag=yes
5204 for emacs_cv_prog_cc_no_pie in -no-pie -nopie no; do
5205 test $emacs_cv_prog_cc_no_pie = no && break
5206 LDFLAGS="$emacs_save_LDFLAGS $emacs_cv_prog_cc_no_pie"
5207 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], [break])
5209 ac_c_werror_flag=$emacs_save_c_werror_flag
5210 LDFLAGS=$emacs_save_LDFLAGS])
5211 if test "$emacs_cv_prog_cc_no_pie" != no; then
5212 LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS $emacs_cv_prog_cc_no_pie"
5215 if test x$ac_enable_profiling != x ; then
5217 *freebsd | gnu-linux) ;;
5218 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
5222 LD_SWITCH_SYSTEM_TEMACS="$LDFLAGS_NOCOMBRELOC $LD_SWITCH_SYSTEM_TEMACS"
5224 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
5226 ## Common for all window systems
5227 if test "$window_system" != "none"; then
5228 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
5229 AC_DEFINE(POLL_FOR_INPUT, 1, [Define if you poll periodically to detect C-g.])
5230 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
5233 AC_SUBST(WINDOW_SYSTEM_OBJ)
5235 AH_TOP([/* GNU Emacs site configuration template file.
5237 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2017
5238 Free Software Foundation, Inc.
5240 This file is part of GNU Emacs.
5242 GNU Emacs is free software: you can redistribute it and/or modify
5243 it under the terms of the GNU General Public License as published by
5244 the Free Software Foundation, either version 3 of the License, or (at
5245 your option) any later version.
5247 GNU Emacs is distributed in the hope that it will be useful,
5248 but WITHOUT ANY WARRANTY; without even the implied warranty of
5249 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
5250 GNU General Public License for more details.
5252 You should have received a copy of the GNU General Public License
5253 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
5256 /* No code in Emacs #includes config.h twice, but some bits of code
5257 intended to work with other packages as well (like gmalloc.c)
5258 think they can include it as many times as they like. */
5259 #ifndef EMACS_CONFIG_H
5260 #define EMACS_CONFIG_H
5263 AH_BOTTOM([#include <conf_post.h>
5265 #endif /* EMACS_CONFIG_H */
5274 #### Report on what we decided to do.
5275 #### Report GTK as a toolkit, even if it doesn't use Xt.
5276 #### It makes printing result more understandable as using GTK sets
5277 #### toolkit_scroll_bars to yes by default.
5278 if test "${HAVE_GTK}" = "yes"; then
5279 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
5282 if test $USE_ACL -ne 0; then
5283 ACL_SUMMARY="yes $LIB_ACL"
5288 emacs_standard_dirs='Standard dirs'
5290 Configured for '${canonical}'.
5292 Where should the build process find the source code? ${srcdir}
5293 What compiler should emacs be built with? ${CC} ${CFLAGS}
5294 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
5295 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
5296 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
5297 What window system should Emacs use? ${window_system}
5298 What toolkit should Emacs use? ${USE_X_TOOLKIT}
5299 Where do we find X Windows header files? ${x_includes:-$emacs_standard_dirs}
5300 Where do we find X Windows libraries? ${x_libraries:-$emacs_standard_dirs}"])
5303 emacs_config_features=
5304 for opt in XAW3D XPM JPEG TIFF GIF PNG RSVG CAIRO IMAGEMAGICK SOUND GPM DBUS \
5305 GCONF GSETTINGS NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT \
5306 LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS X_TOOLKIT OLDXMENU X11 NS MODULES \
5307 XWIDGETS LIBSYSTEMD CANNOT_DUMP; do
5310 CANNOT_DUMP) eval val=\${$opt} ;;
5311 NOTIFY|ACL) eval val=\${${opt}_SUMMARY} ;;
5312 TOOLKIT_SCROLL_BARS|X_TOOLKIT) eval val=\${USE_$opt} ;;
5313 *) eval val=\${HAVE_$opt} ;;
5316 xno|xnone|x) continue ;;
5321 GTK*|LUCID|MOTIF) opt=$val ;;
5326 AS_VAR_APPEND([emacs_config_features], ["$optsep$opt"])
5329 AC_DEFINE_UNQUOTED(EMACS_CONFIG_FEATURES, "${emacs_config_features}",
5330 [Summary of some of the main features enabled by configure.])
5332 AS_ECHO([" Does Emacs use -lXaw3d? ${HAVE_XAW3D}
5333 Does Emacs use -lXpm? ${HAVE_XPM}
5334 Does Emacs use -ljpeg? ${HAVE_JPEG}
5335 Does Emacs use -ltiff? ${HAVE_TIFF}
5336 Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF
5337 Does Emacs use a png library? ${HAVE_PNG} $LIBPNG
5338 Does Emacs use -lrsvg-2? ${HAVE_RSVG}
5339 Does Emacs use cairo? ${HAVE_CAIRO}
5340 Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}
5341 Does Emacs support sound? ${HAVE_SOUND}
5342 Does Emacs use -lgpm? ${HAVE_GPM}
5343 Does Emacs use -ldbus? ${HAVE_DBUS}
5344 Does Emacs use -lgconf? ${HAVE_GCONF}
5345 Does Emacs use GSettings? ${HAVE_GSETTINGS}
5346 Does Emacs use a file notification library? ${NOTIFY_SUMMARY}
5347 Does Emacs use access control lists? ${ACL_SUMMARY}
5348 Does Emacs use -lselinux? ${HAVE_LIBSELINUX}
5349 Does Emacs use -lgnutls? ${HAVE_GNUTLS}
5350 Does Emacs use -lxml2? ${HAVE_LIBXML2}
5351 Does Emacs use -lfreetype? ${HAVE_FREETYPE}
5352 Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}
5353 Does Emacs use -lotf? ${HAVE_LIBOTF}
5354 Does Emacs use -lxft? ${HAVE_XFT}
5355 Does Emacs use -lsystemd? ${HAVE_LIBSYSTEMD}
5356 Does Emacs directly use zlib? ${HAVE_ZLIB}
5357 Does Emacs have dynamic modules support? ${HAVE_MODULES}
5358 Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}
5359 Does Emacs support Xwidgets (requires gtk3)? ${HAVE_XWIDGETS}
5360 Does Emacs have threading support in lisp? ${threads_enabled}
5363 if test -n "${EMACSDATA}"; then
5364 AS_ECHO([" Environment variable EMACSDATA set to: $EMACSDATA"])
5366 if test -n "${EMACSDOC}"; then
5367 AS_ECHO([" Environment variable EMACSDOC set to: $EMACSDOC"])
5372 if test "$HAVE_NS" = "yes"; then
5374 AS_ECHO(["You must run \"${MAKE-make} install\" in order to test the built application.
5375 The installed application will go to nextstep/Emacs.app and can be
5376 run or moved from there."])
5377 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
5378 echo "The application will be fully self-contained."
5380 AS_ECHO(["The lisp resources for the application will be installed under ${prefix}.
5381 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
5382 to run if these resources are not installed."])
5387 if test "${opsys}" = "cygwin"; then
5389 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
5395 # Remove any trailing slashes in these variables.
5397 */) prefix=`AS_DIRNAME(["$prefix."])`;;
5399 case $exec_prefix in
5400 */) exec_prefix=`AS_DIRNAME(["$exec_prefix."])`;;
5403 if test "$HAVE_NS" = "yes"; then
5404 if test "$NS_IMPL_GNUSTEP" = yes; then
5405 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
5406 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
5407 ns_check_file=Resources/Info-gnustep.plist
5409 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
5410 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
5411 ns_check_file=Contents/Info.plist
5413 AC_SUBST(ns_check_file)
5416 AC_CONFIG_FILES([Makefile lib/gnulib.mk])
5418 dnl config.status treats $srcdir specially, so I think this is ok...
5419 AC_CONFIG_FILES([$srcdir/doc/man/emacs.1])
5421 m4_define([subdir_makefiles],
5422 [lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile nt/Makefile])
5423 SUBDIR_MAKEFILES="subdir_makefiles"
5424 AC_CONFIG_FILES(subdir_makefiles)
5426 dnl test/ is not present in release tarfiles.
5427 opt_makefile=test/Makefile
5429 if test -f "$srcdir/$opt_makefile.in"; then
5430 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
5431 dnl Again, it's best not to use a variable. Though you can add
5432 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
5433 AC_CONFIG_FILES([test/Makefile])
5437 dnl The admin/ directory used to be excluded from tarfiles.
5438 if test -d $srcdir/admin; then
5439 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES admin/charsets/Makefile admin/unidata/Makefile admin/grammars/Makefile"
5440 AC_CONFIG_FILES([admin/charsets/Makefile])
5441 AC_CONFIG_FILES([admin/unidata/Makefile])
5442 AC_CONFIG_FILES([admin/grammars/Makefile])
5446 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
5448 AC_SUBST(SUBDIR_MAKEFILES_IN)
5450 dnl You might wonder (I did) why epaths.h is generated by running make,
5451 dnl rather than just letting configure generate it from epaths.in.
5452 dnl One reason is that the various paths are not fully expanded (see above);
5453 dnl e.g., gamedir='${localstatedir}/games/emacs'.
5454 dnl Secondly, the GNU Coding standards require that one should be able
5455 dnl to run 'make prefix=/some/where/else' and override the values set
5456 dnl by configure. This also explains the 'move-if-change' test and
5457 dnl the use of force in the 'epaths-force' rule in Makefile.in.
5458 AC_CONFIG_COMMANDS([src/epaths.h], [
5459 if test "${opsys}" = "mingw32"; then
5460 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
5462 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
5463 fi || AC_MSG_ERROR(['src/epaths.h' could not be made.])
5464 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
5466 dnl NB we have to cheat and use the ac_... version because abs_top_srcdir
5467 dnl is not yet set, sigh. Or we could use ../$srcdir/src/.gdbinit,
5469 AC_CONFIG_COMMANDS([src/.gdbinit], [
5470 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
5471 AS_ECHO(["source $ac_abs_top_srcdir/src/.gdbinit"]) > src/.gdbinit
5475 dnl Perhaps this would be better named doc-emacs-emacsver.texi?
5476 dnl See comments for etc-refcards-emacsver.tex.
5477 dnl Since we get a doc/emacs directory generated anyway, for the Makefile,
5478 dnl it is not quite the same. But we are generating in $srcdir.
5479 AC_CONFIG_COMMANDS([doc/emacs/emacsver.texi], [
5480 ${MAKE-make} -s --no-print-directory -C doc/emacs doc-emacsver || \
5481 AC_MSG_ERROR(['doc/emacs/emacsver.texi' could not be made.])
5484 dnl If we give this the more natural name, etc/refcards/emacsver.texi,
5485 dnl then a directory etc/refcards is created in the build directory,
5486 dnl which is probably harmless, but confusing (in out-of-tree builds).
5487 dnl (If we were to generate etc/refcards/Makefile, this might change.)
5488 dnl It is really $srcdir/etc/refcards/emacsver.tex that we generate.
5489 AC_CONFIG_COMMANDS([etc-refcards-emacsver.tex], [
5490 ${MAKE-make} -s MAKEFILE_NAME=do-not-make-Makefile etc-emacsver || \
5491 AC_MSG_ERROR(['etc/refcards/emacsver.tex' could not be made.])
5494 if test $AUTO_DEPEND = yes; then
5495 for dir in $AUTODEPEND_PARENTS; do
5496 AS_MKDIR_P([$dir/deps])
5502 if test ! "$with_mailutils"; then
5503 if test "$with_pop" = yes; then
5504 AC_MSG_WARN([This configuration installs a 'movemail' program
5505 that retrieves POP3 email via only insecure channels.
5506 To omit insecure POP3, you can use '$0 --without-pop'.])
5511 # Don't suggest GNU Mailutils, as it hasn't been ported.
5514 emacs_fix_movemail="use '$0 --with-mailutils'"
5515 case `(movemail --version) 2>/dev/null` in
5517 *) emacs_fix_movemail="install GNU Mailutils
5518 <http://mailutils.org> and $emacs_fix_movemail";;
5520 AC_MSG_NOTICE([You might want to $emacs_fix_movemail.]);;
5524 test "$MAKE" = make || AC_MSG_NOTICE([Now you can run '$MAKE'.])