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 -Wsystem-headers" # Don't let system headers trigger warnings
925 nw="$nw -Woverlength-strings" # Not a problem these days
926 nw="$nw -Wformat-nonliteral" # we do this a lot
927 nw="$nw -Wvla" # Emacs uses <vla.h>.
928 nw="$nw -Wswitch-default" # Too many warnings for now
929 nw="$nw -Wunused-const-variable=2" # lisp.h declares const objects.
930 nw="$nw -Winline" # OK to ignore 'inline'
931 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
932 # signed overflow has undefined behavior
933 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
934 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
935 nw="$nw -Wbad-function-cast" # These casts are no worse than others.
937 # Emacs doesn't care about shadowing; see
938 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
941 # Emacs's use of alloca inhibits protecting the stack.
942 nw="$nw -Wstack-protector"
944 # Emacs's use of partly-const functions such as Fgnutls_available_p
945 # make this option problematic.
946 nw="$nw -Wsuggest-attribute=const"
948 # Emacs's use of partly-pure functions such as CHECK_TYPE make this
949 # option problematic.
950 nw="$nw -Wsuggest-attribute=pure"
952 # This part is merely for shortening the command line,
953 # since -Wall implies -Wswitch.
956 # This part is merely for shortening the command line,
957 # since -Wno-FOO needs to be added below regardless.
958 nw="$nw -Wmissing-field-initializers"
959 nw="$nw -Wtype-limits"
960 nw="$nw -Wunused-parameter"
962 if test $emacs_cv_clang = yes; then
963 nw="$nw -Wcast-align"
966 # This causes too much noise in the MinGW build
967 if test $opsys = mingw32; then
968 nw="$nw -Wpointer-sign"
971 gl_MANYWARN_ALL_GCC([ws])
972 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
976 gl_WARN_ADD([-Wredundant-decls]) # Prefer this, as we don't use Bison.
977 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
978 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
979 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
980 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
981 gl_WARN_ADD([-Wno-format-nonliteral])
983 # More things that clang is unduly picky about.
984 if test $emacs_cv_clang = yes; then
985 gl_WARN_ADD([-Wno-tautological-compare])
986 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
989 # This causes too much noise in the MinGW build
990 if test $opsys = mingw32; then
991 gl_WARN_ADD([-Wno-pointer-sign])
994 AC_DEFINE([GCC_LINT], [1], [Define to 1 if --enable-gcc-warnings.])
995 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
996 AH_VERBATIM([GNULIB_PORTCHECK_FORTIFY_SOURCE],
997 [/* Enable compile-time and run-time bounds-checking, and some warnings,
998 without upsetting glibc 2.15+. */
999 #if (defined GNULIB_PORTCHECK && !defined _FORTIFY_SOURCE \
1000 && defined __OPTIMIZE__ && __OPTIMIZE__)
1001 # define _FORTIFY_SOURCE 2
1005 # We use a slightly smaller set of warning options for lib/.
1006 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
1008 nw="$nw -Wunused-macros"
1010 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
1011 AC_SUBST([GNULIB_WARN_CFLAGS])
1021 AC_ARG_ENABLE(link-time-optimization,
1022 [AS_HELP_STRING([--enable-link-time-optimization],
1023 [build emacs with link-time optimization.
1024 This requires GCC 4.5.0 or later, or clang.
1025 (Note that clang support is experimental - see INSTALL.)
1026 It also makes Emacs harder to debug, and when we tried it
1027 with GCC 4.9.0 x86-64 it made Emacs slower, so it's not
1028 recommended for typical use.])],
1029 if test "${enableval}" != "no"; then
1031 if test $emacs_cv_clang = yes; then
1032 AC_MSG_CHECKING([whether link-time optimization is supported by clang])
1033 GOLD_PLUGIN=`$CC -print-file-name=LLVMgold.so 2>/dev/null`
1034 if test -x "$GOLD_PLUGIN"; then
1037 elif test x$GCC = xyes; then
1038 AC_MSG_CHECKING([whether link-time optimization is supported by gcc])
1039 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
1040 if test x$CPUS != x; then
1046 AC_MSG_ERROR([Link-time optimization is not supported with your compiler.])
1048 if test -z "$LTO"; then
1052 CFLAGS="$CFLAGS $LTO"
1053 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1054 [ac_lto_supported=yes], [ac_lto_supported=no])
1055 CFLAGS="$old_CFLAGS"
1057 AC_MSG_RESULT([$ac_lto_supported])
1058 if test "$ac_lto_supported" = "yes"; then
1059 CFLAGS="$CFLAGS $LTO"
1060 if test x$emacs_cv_clang = xyes; then
1061 AC_MSG_WARN([Please read INSTALL before using link-time optimization with clang])
1062 # WARNING: 'ar --plugin ...' doesn't work without
1063 # command, so plugin name is appended to ARFLAGS.
1064 ARFLAGS="cru --plugin $GOLD_PLUGIN"
1065 RANLIB="$RANLIB --plugin $GOLD_PLUGIN"
1067 dnl The following is needed for GCC 4.9.0. The GCC 4.9.0 release notes
1068 dnl suggest that instead of -ffat-lto-objects we should use gcc-ar and
1069 dnl gcc-ranlib in place of ar and ranlib, but gcc-ar makes /usr/bin/ar
1070 dnl dump core on Fedora 20, so play it safe for now.
1071 gl_COMPILER_OPTION_IF([-ffat-lto-objects],
1072 [CFLAGS="$CFLAGS -ffat-lto-objects"])
1078 dnl Automake replacements.
1079 AC_DEFUN([AM_CONDITIONAL],
1083 dnl Prefer silent make output. For verbose output, use
1084 dnl 'configure --disable-silent-rules' or 'make V=1' .
1085 dnl This code is adapted from Automake.
1086 dnl Although it can be simplified now that GNU Make is assumed,
1087 dnl the simplification hasn't been done yet.
1088 AC_ARG_ENABLE([silent-rules],
1090 [--disable-silent-rules],
1091 [verbose build output (undo: "make V=0")])])
1092 if test "$enable_silent_rules" = no; then
1093 AM_DEFAULT_VERBOSITY=1
1095 AM_DEFAULT_VERBOSITY=0
1098 AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
1100 AC_SUBST([AM_DEFAULT_V])
1101 AC_SUBST([AM_DEFAULT_VERBOSITY])
1103 dnl Some other nice autoconf tests.
1105 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
1107 dnl if test "x$RANLIB" = x; then
1112 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
1113 dnl can be made to directories. This is not relevant for our usage, and
1114 dnl excludes some cases that work fine for us. Eg MS Windows or files
1115 dnl hosted on AFS, both examples where simple links work, but links to
1116 dnl directories fail. We use a cut-down version instead.
1119 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
1120 rm -f conf$$ conf$$.file
1122 LN_S_FILEONLY='cp -p'
1124 dnl On MinGW, ensure we will call the MSYS /bin/ln.exe, not some
1125 dnl random program in the current directory.
1126 if (echo >conf$$.file) 2>/dev/null; then
1127 if ln -s conf$$.file conf$$ 2>/dev/null; then
1128 if test "$opsys" = "mingw32"; then
1129 LN_S_FILEONLY='/bin/ln -s'
1131 LN_S_FILEONLY='ln -s'
1133 elif ln conf$$.file conf$$ 2>/dev/null; then
1134 if test "$opsys" = "mingw32"; then
1135 LN_S_FILEONLY=/bin/ln
1142 rm -f conf$$ conf$$.file
1144 if test "$LN_S_FILEONLY" = "ln -s"; then
1145 AC_MSG_RESULT([yes])
1147 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
1150 AC_SUBST(LN_S_FILEONLY)
1153 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
1154 dnl doesn't support links to directories, as in "ln file dir". But that
1155 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
1156 dnl executables at "make install" time.
1157 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
1158 dnl for more details.
1159 if test "$opsys" = "mingw32"; then
1163 dnl On some Debian versions, "install-info" prints irritating messages
1164 dnl "This is not dpkg install-info anymore, but GNU install-info"
1165 dnl if called via an absolute file name.
1166 dnl Use the entirely-identical-but-quieter ginstall-info instead if present.
1167 dnl Sadly some people may have an old ginstall-info installed on
1168 dnl non-Debian systems, so we can't use this.
1169 dnl AC_PATH_PROGS(INSTALL_INFO, [ginstall-info install-info], :,
1170 dnl $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1172 AC_PATH_PROG(INSTALL_INFO, install-info, :,
1173 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1174 dnl Don't use GZIP, which is used by gzip for additional parameters.
1175 AC_PATH_PROG(GZIP_PROG, gzip)
1177 test $with_compress_install != yes && test -n "$GZIP_PROG" && \
1178 GZIP_PROG=" # $GZIP_PROG # (disabled by configure --without-compress-install)"
1180 AC_CACHE_CHECK([for 'find' args to delete a file],
1181 [emacs_cv_find_delete],
1182 [if touch conftest.tmp && find conftest.tmp -delete 2>/dev/null &&
1183 test ! -f conftest.tmp
1184 then emacs_cv_find_delete="-delete"
1185 else emacs_cv_find_delete="-exec rm -f {} ';'"
1187 FIND_DELETE=$emacs_cv_find_delete
1188 AC_SUBST([FIND_DELETE])
1192 if test $opsys = gnu-linux; then
1193 if test "${SETFATTR+set}" != set; then
1194 AC_CACHE_CHECK([for setfattr],
1195 [emacs_cv_prog_setfattr],
1197 if (setfattr -n user.pax.flags conftest.tmp) >/dev/null 2>&1; then
1198 emacs_cv_prog_setfattr=yes
1200 emacs_cv_prog_setfattr=no
1202 if test "$emacs_cv_prog_setfattr" = yes; then
1203 PAXCTL_notdumped='$(SETFATTR) -n user.pax.flags -v er'
1209 AC_SUBST([SETFATTR])
1212 case $opsys,$PAXCTL_notdumped in
1213 gnu-linux, | netbsd,)
1214 AC_PATH_PROG([PAXCTL], [paxctl], [],
1215 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
1216 if test -n "$PAXCTL"; then
1217 if test "$opsys" = netbsd; then
1218 PAXCTL_dumped='$(PAXCTL) +a'
1219 PAXCTL_notdumped=$PAXCTL_dumped
1221 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
1222 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1223 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then
1224 AC_MSG_RESULT([yes])
1229 if test -n "$PAXCTL"; then
1230 PAXCTL_dumped='$(PAXCTL) -zex'
1231 PAXCTL_notdumped='$(PAXCTL) -r'
1236 AC_SUBST([PAXCTL_dumped])
1237 AC_SUBST([PAXCTL_notdumped])
1239 ## Require makeinfo >= 4.13 (last of the 4.x series) to build the manuals.
1240 if test "${MAKEINFO:=makeinfo}" != "no"; then
1241 case `($MAKEINFO --version) 2>/dev/null` in
1242 *' (GNU texinfo) '4.1[[3-9]]* | \
1243 *' (GNU texinfo) '[[5-9]]* | \
1244 *' (GNU texinfo) '[[1-9][0-9]]* ) ;;
1249 ## Makeinfo is unusual. For a released Emacs, the manuals are
1250 ## pre-built, and not deleted by the normal clean rules. makeinfo is
1251 ## therefore in the category of "special tools" not normally required, which
1252 ## configure does not have to check for (eg autoconf itself).
1253 ## In a repository checkout on the other hand, the manuals are not included.
1254 ## So makeinfo is a requirement to build from the repository, and configure
1255 ## should test for it as it does for any other build requirement.
1256 ## We use the presence of $srcdir/info/emacs to distinguish a release,
1257 ## with pre-built manuals, from a repository checkout.
1260 if test "$MAKEINFO" = "no"; then
1262 if test "x${with_makeinfo}" = "xno"; then
1264 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
1265 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.13, and your
1266 source tree does not seem to have pre-built manuals in the 'info' directory.
1267 Either install a suitable version of makeinfo, or re-run configure
1268 with the '--without-makeinfo' option to build without the manuals.] )
1271 AC_SUBST([MAKEINFO])
1272 AC_SUBST(HAVE_MAKEINFO)
1274 if test $opsys = mingw32; then
1275 DOCMISC_W32=efaq-w32
1279 AC_SUBST(DOCMISC_W32)
1281 dnl Add our options to ac_link now, after it is set up.
1283 if test x$GCC = xyes; then
1284 test "x$GCC_LINK_TEST_OPTIONS" != x && \
1285 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1287 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
1288 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1291 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
1292 dnl If we can link with the flag, it shouldn't do any harm anyhow.
1293 dnl Treat GCC specially since it just gives a non-fatal 'unrecognized option'
1294 dnl if not built to support GNU ld.
1296 dnl For a long time, -znocombreloc was added to LDFLAGS rather than
1297 dnl LD_SWITCH_SYSTEM_TEMACS. That is:
1298 dnl * inappropriate, as LDFLAGS is a user option but this is essential.
1299 dnl Eg "make LDFLAGS=... all" could run into problems,
1300 dnl http://bugs.debian.org/684788
1301 dnl * unnecessary, since temacs is the only thing that actually needs it.
1302 dnl Indeed this is where it was originally, prior to:
1303 dnl http://lists.gnu.org/archive/html/emacs-pretest-bug/2004-03/msg00170.html
1304 late_LDFLAGS="$LDFLAGS"
1305 if test x$GCC = xyes; then
1306 LDFLAGS_NOCOMBRELOC="-Wl,-znocombreloc"
1308 LDFLAGS_NOCOMBRELOC="-znocombreloc"
1311 LDFLAGS="$LDFLAGS $LDFLAGS_NOCOMBRELOC"
1313 AC_MSG_CHECKING([for -znocombreloc])
1314 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1315 [AC_MSG_RESULT(yes)],
1316 LDFLAGS_NOCOMBRELOC=
1317 [AC_MSG_RESULT(no)])
1319 LDFLAGS="$late_LDFLAGS"
1321 AC_CACHE_CHECK([whether addresses are sanitized],
1322 [emacs_cv_sanitize_address],
1325 [[#ifndef __has_feature
1326 #define __has_feature(f) 0
1328 #if defined __SANITIZE_ADDRESS__ || __has_feature (address_sanitizer)
1330 error "Addresses are not sanitized.";
1333 [emacs_cv_sanitize_address=yes],
1334 [emacs_cv_sanitize_address=no])])
1336 dnl The function dump-emacs will not be defined and temacs will do
1337 dnl (load "loadup") automatically unless told otherwise.
1338 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
1340 nacl) CANNOT_DUMP=yes ;;
1343 if test "$CANNOT_DUMP" = "yes"; then
1344 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1345 elif test "$emacs_cv_sanitize_address" = yes; then
1346 AC_MSG_WARN([[Addresses are sanitized; suggest CANNOT_DUMP=yes]])
1349 AC_SUBST(CANNOT_DUMP)
1352 UNEXEC_OBJ=unexelf.o
1354 # MSDOS uses unexcoff.o
1356 UNEXEC_OBJ=unexaix.o
1362 UNEXEC_OBJ=unexmacosx.o
1365 UNEXEC_OBJ=unexhp9k800.o
1368 UNEXEC_OBJ=unexw32.o
1371 # Use the Solaris dldump() function, called from unexsol.c, to dump
1372 # emacs, instead of the generic ELF dump code found in unexelf.c.
1373 # The resulting binary has a complete symbol table, and is better
1374 # for debugging and other observability tools (debuggers, pstack, etc).
1376 # If you encounter a problem using dldump(), please consider sending
1377 # a message to the OpenSolaris tools-linking mailing list:
1378 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1380 # It is likely that dldump() works with older Solaris too, but this has
1381 # not been tested, so for now this change is for Solaris 10 or newer.
1382 UNEXEC_OBJ=unexsol.o
1385 test "$CANNOT_DUMP" = "yes" && UNEXEC_OBJ=
1390 ## Let 'ld' find image libs and similar things in /usr/local/lib.
1391 ## The system compiler, GCC, has apparently been modified to not
1392 ## look there, contrary to what a stock GCC would do.
1393 ### It's not our place to do this. See bug#10313#17.
1394 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1399 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1400 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1404 ### It's not our place to do this. See bug#10313#17.
1405 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1410 ## Han Boetes <han@boetes.org> says this is necessary,
1411 ## otherwise Emacs dumps core on elf systems.
1412 LD_SWITCH_SYSTEM="-Z"
1415 AC_SUBST(LD_SWITCH_SYSTEM)
1417 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1419 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1420 ## which has not been defined yet. When this was handled with cpp,
1421 ## it was expanded to null when configure sourced the s/*.h file.
1422 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1423 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1424 ## (or somesuch), but because it is supposed to go at the _front_
1425 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1426 ## Compare with the gnu-linux case below, which added to the end
1427 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1428 ## LD_SWITCH_SYSTEM_TEMACS.
1431 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1438 AC_CHECK_DECL([__ELF__])
1439 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1440 ## With ELF, make sure that all common symbols get allocated to in the
1441 ## data section. Otherwise, the dump of temacs may miss variables in
1442 ## the shared library that have been initialized. For example, with
1443 ## GNU libc, __malloc_initialized would normally be resolved to the
1444 ## shared library's .bss section, which is fatal.
1445 if test "x$GCC" = "xyes"; then
1446 C_SWITCH_MACHINE="-fno-common"
1448 AC_MSG_ERROR([Non-GCC compilers are not supported.])
1451 dnl This was the unexalpha.c case. Removed in 24.1, 2010-07-24,
1452 dnl albeit under the mistaken assumption that said file
1453 dnl was no longer used.
1454 AC_MSG_ERROR([Non-ELF systems are not supported since Emacs 24.1.])
1458 AC_SUBST(C_SWITCH_MACHINE)
1460 AC_SUBST(UNEXEC_OBJ)
1463 ## Some programs in src produce warnings saying certain subprograms
1464 ## are too complex and need a MAXMEM value greater than 2000 for
1465 ## additional optimization. --nils@exp-math.uni-essen.de
1466 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1467 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1468 if test "$opsys" = "mingw32"; then
1469 case "$canonical" in
1470 x86_64-*-mingw*) C_SWITCH_SYSTEM="-mtune=generic" ;;
1471 *) C_SWITCH_SYSTEM="-mtune=pentium4" ;;
1474 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1475 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1476 AC_SUBST(C_SWITCH_SYSTEM)
1481 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1482 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1484 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1486 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1488 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1490 ## Motif needs -lgen.
1491 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1494 AC_SUBST(LIBS_SYSTEM)
1496 ### Make sure subsequent tests use flags consistent with the build flags.
1498 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1499 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1501 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1504 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C99 or better.
1505 AC_DEFUN([AC_TYPE_SIZE_T])
1506 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1507 AC_DEFUN([AC_TYPE_UID_T])
1509 # sqrt and other floating-point functions such as fmod and frexp
1510 # are found in -lm on many systems.
1512 AC_SEARCH_LIBS([sqrt], [m])
1513 if test "X$LIBS" = "X$OLD_LIBS"; then
1516 LIB_MATH=$ac_cv_search_sqrt
1520 dnl Current possibilities handled by sed (aix4-2 -> aix,
1521 dnl gnu-linux -> gnu/linux, etc.):
1522 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux.
1523 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1524 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1531 ## Adding -lm confuses the dynamic linker, so omit it.
1534 freebsd | dragonfly )
1535 SYSTEM_TYPE=berkeley-unix
1537 gnu-linux | gnu-kfreebsd )
1539 hpux10-20 | hpux11 )
1543 SYSTEM_TYPE=windows-nt
1545 dnl NB this may be adjusted below.
1547 SYSTEM_TYPE=berkeley-unix
1551 SYSTEM_TYPE=usg-unix-v
1557 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1558 [The type of system you are compiling for; sets 'system-type'.])
1559 AC_SUBST([SYSTEM_TYPE])
1562 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1563 pre_PKG_CONFIG_LIBS=$LIBS
1565 PKG_PROG_PKG_CONFIG(0.9.0)
1567 dnl EMACS_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4)
1568 dnl acts like PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4,
1569 dnl HAVE_GSTUFF=yes, HAVE_GSTUFF=no) -- see pkg-config man page --
1570 dnl except that it postprocesses CFLAGS as needed for --enable-gcc-warnings.
1571 dnl EMACS_CHECK_MODULES accepts optional 3rd and 4th arguments that
1572 dnl can take the place of the default HAVE_GSTUFF=yes and HAVE_GSTUFF=no
1574 AC_DEFUN([EMACS_CHECK_MODULES],
1575 [PKG_CHECK_MODULES([$1], [$2],
1576 [$1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1577 m4_default([$3], [HAVE_$1=yes])],
1578 [m4_default([$4], [HAVE_$1=no])])])
1581 if test "${with_sound}" != "no"; then
1582 # Sound support for GNU/Linux, the free BSDs, MinGW, and Cygwin.
1583 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h mmsystem.h],
1584 have_sound_header=yes, [], [
1586 #define WIN32_LEAN_AND_MEAN
1587 #include <windows.h>
1590 test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
1591 AC_MSG_ERROR([OSS sound support requested but not found.])
1593 if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
1594 # Emulation library used on NetBSD.
1595 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1596 test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
1597 AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
1598 dnl FIXME? If we did find ossaudio, should we set with_sound=bsd-ossaudio?
1599 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1603 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1605 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1606 EMACS_CHECK_MODULES([ALSA], [$ALSA_MODULES])
1607 if test $HAVE_ALSA = yes; then
1608 SAVE_CFLAGS="$CFLAGS"
1610 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1611 LIBS="$ALSA_LIBS $LIBS"
1612 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1613 emacs_alsa_normal=yes,
1614 emacs_alsa_normal=no)
1615 if test "$emacs_alsa_normal" != yes; then
1616 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1617 [[snd_lib_error_set_handler (0);]])],
1618 emacs_alsa_subdir=yes,
1619 emacs_alsa_subdir=no)
1620 if test "$emacs_alsa_subdir" != yes; then
1621 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1623 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1626 CFLAGS="$SAVE_CFLAGS"
1628 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1629 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1630 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1631 elif test "${with_sound}" = "alsa"; then
1632 AC_MSG_ERROR([ALSA sound support requested but not found.])
1634 fi dnl with_sound = alsa|yes
1636 dnl Define HAVE_SOUND if we have sound support. We know it works and
1637 dnl compiles only on the specified platforms. For others, it
1638 dnl probably doesn't make sense to try.
1639 dnl FIXME So surely we should bypass this whole section if not using
1640 dnl one of these platforms?
1641 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1643 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1644 dnl Adjust the --with-sound help text if you change this.
1645 gnu-linux|freebsd|netbsd|mingw32|cygwin)
1646 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1652 AC_SUBST(CFLAGS_SOUND)
1655 dnl checks for header files
1656 AC_CHECK_HEADERS_ONCE(
1663 sys/utsname.h pwd.h utmp.h util.h sys/prctl.h)
1665 AC_CACHE_CHECK([for ADDR_NO_RANDOMIZE],
1666 [emacs_cv_personality_addr_no_randomize],
1668 [AC_LANG_PROGRAM([[#include <sys/personality.h>]],
1669 [[personality (personality (0xffffffff)
1670 | ADDR_NO_RANDOMIZE)]])],
1671 [emacs_cv_personality_addr_no_randomize=yes],
1672 [emacs_cv_personality_addr_no_randomize=no])])
1673 if test $emacs_cv_personality_addr_no_randomize = yes; then
1674 AC_DEFINE([HAVE_PERSONALITY_ADDR_NO_RANDOMIZE], [1],
1675 [Define to 1 if personality flag ADDR_NO_RANDOMIZE exists.])
1678 # Note that Solaris has sys/sysinfo.h which defines struct
1679 # sysinfo as well. To make sure that we're using GNU/Linux
1680 # sysinfo, we explicitly set one of its fields.
1681 if test "$ac_cv_header_sys_sysinfo_h" = yes; then
1682 AC_MSG_CHECKING([if Linux sysinfo may be used])
1683 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1684 [[struct sysinfo si;
1687 emacs_cv_linux_sysinfo=yes, emacs_cv_linux_sysinfo=no)
1688 AC_MSG_RESULT($emacs_cv_linux_sysinfo)
1689 if test $emacs_cv_linux_sysinfo = yes; then
1690 AC_DEFINE([HAVE_LINUX_SYSINFO], 1, [Define to 1 if you have Linux sysinfo function.])
1691 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1692 [[struct sysinfo si; return si.mem_unit]])],
1693 AC_DEFINE(LINUX_SYSINFO_UNIT, 1,
1694 [Define to 1 if Linux sysinfo sizes are in multiples of mem_unit bytes.]))
1698 dnl On Solaris 8 there's a compilation warning for term.h because
1699 dnl it doesn't define 'bool'.
1700 AC_CHECK_HEADERS(term.h, , , -)
1702 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1704 if test $ac_cv_have_decl_sys_siglist != yes; then
1705 # For Tru64, at least:
1706 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1711 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1712 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1713 #if HAVE_SYS_SOCKET_H
1714 #include <sys/socket.h>
1716 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1717 #if HAVE_SYS_SOCKET_H
1718 #include <sys/socket.h>
1720 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1721 #if HAVE_SYS_SOCKET_H
1722 #include <sys/socket.h>
1725 dnl checks for structure members
1726 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1727 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1728 struct ifreq.ifr_addr,
1729 struct ifreq.ifr_addr.sa_len], , ,
1730 [AC_INCLUDES_DEFAULT
1731 #if HAVE_SYS_SOCKET_H
1732 #include <sys/socket.h>
1738 dnl Check for endianness.
1739 dnl AC_C_BIGENDIAN is done by gnulib.
1741 dnl check for Make feature
1744 AUTODEPEND_PARENTS='lib src'
1745 dnl check if we have GCC and autodepend is on.
1746 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1747 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1748 SAVE_CFLAGS="$CFLAGS"
1749 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1750 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1751 CFLAGS="$SAVE_CFLAGS"
1752 test -f deps.d || ac_enable_autodepend=no
1754 AC_MSG_RESULT([$ac_enable_autodepend])
1755 if test $ac_enable_autodepend = yes; then
1759 AC_SUBST(AUTO_DEPEND)
1761 dnl checks for operating system services
1762 AC_SYS_LONG_FILE_NAMES
1764 #### Choose a window system.
1766 ## We leave window_system equal to none if
1767 ## we end up building without one. Any new window system should
1768 ## set window_system to an appropriate value and add objects to
1769 ## window-system-specific substs.
1773 if test "$no_x" != yes; then
1777 LD_SWITCH_X_SITE_RPATH=
1778 if test "${x_libraries}" != NONE; then
1779 if test -n "${x_libraries}"; then
1780 LD_SWITCH_X_SITE=-L`AS_ECHO(["$x_libraries"]) | sed -e 's/:/ -L/g'`
1781 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`
1782 AS_ECHO(["$x_libraries"]) | sed -e 's/:/ -Wl,-rpath,/g'
1785 x_default_search_path=""
1786 x_search_path=${x_libraries}
1787 if test -z "${x_search_path}"; then
1788 x_search_path=/usr/lib
1790 for x_library in `AS_ECHO(["$x_search_path:"]) | \
1791 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1793 ${x_library}/X11/%L/%T/%N%C%S:\
1794 ${x_library}/X11/%l/%T/%N%C%S:\
1795 ${x_library}/X11/%T/%N%C%S:\
1796 ${x_library}/X11/%L/%T/%N%S:\
1797 ${x_library}/X11/%l/%T/%N%S:\
1798 ${x_library}/X11/%T/%N%S"
1799 if test x"${x_default_search_path}" = x; then
1800 x_default_search_path=${x_search_path}
1802 x_default_search_path="${x_search_path}:${x_default_search_path}"
1806 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1808 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1809 C_SWITCH_X_SITE=$isystem`AS_ECHO(["$x_includes"]) | sed -e "s/:/ $isystem/g"`
1812 if test x"${x_includes}" = x; then
1813 bitmapdir=/usr/include/X11/bitmaps
1815 # accumulate include directories that have X11 bitmap subdirectories
1817 for bmd in `AS_ECHO(["$x_includes"]) | sed -e 's/:/ /g'`; do
1818 if test -d "${bmd}/X11/bitmaps"; then
1819 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1821 if test -d "${bmd}/bitmaps"; then
1822 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1825 bitmapdir=${bmd_acc#:}
1828 test "${with_ns}" = maybe && test "${opsys}" != darwin && with_ns=no
1830 NS_GNUSTEP_CONFIG=no
1833 tmp_CPPFLAGS="$CPPFLAGS"
1834 tmp_CFLAGS="$CFLAGS"
1835 CPPFLAGS="$CPPFLAGS -x objective-c"
1836 CFLAGS="$CFLAGS -x objective-c"
1839 if test "${with_ns}" != no; then
1840 if test "${opsys}" = darwin; then
1842 ns_appdir=`pwd`/nextstep/Emacs.app
1843 ns_appbindir=${ns_appdir}/Contents/MacOS
1844 ns_appresdir=${ns_appdir}/Contents/Resources
1845 ns_appsrc=Cocoa/Emacs.base
1846 ns_fontfile=macfont.o
1847 elif flags=$( (gnustep-config --objc-flags) 2>/dev/null); then
1849 NS_GNUSTEP_CONFIG=yes
1850 GNU_OBJC_CFLAGS=$flags
1851 LIBS_GNUSTEP=$(gnustep-config --gui-libs) || exit
1852 elif test -f $GNUSTEP_CONFIG_FILE; then
1854 dnl FIXME sourcing this several times in subshells seems inefficient.
1855 GNUSTEP_SYSTEM_HEADERS=$(
1856 . $GNUSTEP_CONFIG_FILE
1857 AS_ECHO(["$GNUSTEP_SYSTEM_HEADERS"])
1859 GNUSTEP_SYSTEM_LIBRARIES=$(
1860 . $GNUSTEP_CONFIG_FILE
1861 AS_ECHO(["$GNUSTEP_SYSTEM_LIBRARIES"])
1863 dnl I seemed to need these as well with GNUstep-startup 0.25.
1864 GNUSTEP_LOCAL_HEADERS=$(
1865 . $GNUSTEP_CONFIG_FILE
1866 AS_ECHO(["$GNUSTEP_LOCAL_HEADERS"])
1868 GNUSTEP_LOCAL_LIBRARIES=$(
1869 . $GNUSTEP_CONFIG_FILE
1870 AS_ECHO(["$GNUSTEP_LOCAL_LIBRARIES"])
1872 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1873 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1874 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1875 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1876 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1877 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1878 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1879 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1880 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1881 dnl If they had chosen to either define it or not, we could have
1882 dnl just used AC_CHECK_DECL here.
1883 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1884 emacs_cv_objc_exceptions,
1885 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1886 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1890 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1891 if test $emacs_cv_objc_exceptions = yes; then
1892 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1893 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1894 [Define if GNUstep uses ObjC exceptions.])
1895 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1898 if test $NS_IMPL_GNUSTEP = yes; then
1899 ns_appdir=`pwd`/nextstep/Emacs.app
1900 ns_appbindir=${ns_appdir}
1901 ns_appresdir=${ns_appdir}/Resources
1902 ns_appsrc=GNUstep/Emacs.base
1903 ns_fontfile=nsfont.o
1906 dnl This is only used while we test the NS headers, it gets reset below.
1907 CPPFLAGS="$CPPFLAGS $GNU_OBJC_CFLAGS"
1908 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1910 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1911 [AC_MSG_ERROR([The include files (AppKit/AppKit.h etc) that
1912 are required for a Nextstep build are missing or cannot be compiled.
1913 Either fix this, or re-configure with the option '--without-ns'.])])
1916 if test "${NS_IMPL_COCOA}" = "yes"; then
1917 AC_MSG_CHECKING([for Mac OS X 10.6 or newer])
1918 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1920 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1921 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1060
1924 error "Mac OS X 10.6 or newer required";
1928 ns_osx_have_106=yes,
1930 AC_MSG_RESULT([$ns_osx_have_106])
1932 if test $ns_osx_have_106 = no; then
1933 AC_MSG_ERROR([Mac OS X 10.6 or newer is required]);
1938 AC_SUBST(LIBS_GNUSTEP)
1940 INSTALL_ARCH_INDEP_EXTRA=install-etc
1941 ns_self_contained=no
1944 if test "${HAVE_NS}" = yes; then
1945 if test "$with_toolkit_scroll_bars" = "no"; then
1946 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1949 window_system=nextstep
1950 # set up packaging dirs
1951 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1952 ns_self_contained=yes
1953 prefix=${ns_appresdir}
1954 exec_prefix=${ns_appbindir}
1955 dnl This one isn't really used, only archlibdir is.
1956 libexecdir="\${ns_appbindir}/libexec"
1957 archlibdir="\${ns_appbindir}/libexec"
1958 etcdocdir="\${ns_appresdir}/etc"
1959 etcdir="\${ns_appresdir}/etc"
1960 dnl FIXME maybe set datarootdir instead.
1961 dnl That would also get applications, icons, man.
1962 infodir="\${ns_appresdir}/info"
1963 mandir="\${ns_appresdir}/man"
1964 lispdir="\${ns_appresdir}/lisp"
1965 test "$locallisppathset" = no && locallisppath=""
1966 INSTALL_ARCH_INDEP_EXTRA=
1969 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o $ns_fontfile"
1971 CFLAGS="$tmp_CFLAGS"
1972 CPPFLAGS="$tmp_CPPFLAGS"
1973 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1974 AC_SUBST(ns_self_contained)
1976 AC_SUBST(NS_OBJC_OBJ)
1986 if test "${with_w32}" != no; then
1989 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1990 [AC_MSG_ERROR(['--with-w32' was specified, but windows.h
1991 cannot be found.])])
1994 ## Using --with-w32 with MinGW is a no-op, but we allow it.
1997 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
2002 if test "${opsys}" = "mingw32"; then
2003 AC_MSG_CHECKING([whether Windows API headers are recent enough])
2004 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2005 #include <windows.h>
2006 #include <usp10.h>]],
2007 [[PIMAGE_NT_HEADERS pHeader;
2008 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
2009 [emacs_cv_w32api=yes
2012 AC_MSG_RESULT($emacs_cv_w32api)
2013 if test "${emacs_cv_w32api}" = "no"; then
2014 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
2025 if test "${HAVE_W32}" = "yes"; then
2026 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
2027 if test "$with_toolkit_scroll_bars" = "no"; then
2028 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for w32 build.])
2030 AC_CHECK_TOOL(WINDRES, [windres],
2031 [AC_MSG_ERROR([No resource compiler found.])])
2032 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
2033 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
2034 EMACSRES="emacs.res"
2035 case "$canonical" in
2036 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
2037 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
2039 dnl Construct something of the form "24,4,0,0" with 4 components.
2040 comma_version=`echo "${PACKAGE_VERSION}.0.0" | sed -e 's/\./,/g' -e 's/^\([[^,]]*,[[^,]]*,[[^,]]*,[[^,]]*\).*/\1/'`
2042 comma_space_version=`echo "$comma_version" | sed 's/,/, /g'`
2043 AC_SUBST(comma_version)
2044 AC_SUBST(comma_space_version)
2045 AC_CONFIG_FILES([nt/emacs.rc nt/emacsclient.rc])
2046 if test "${opsys}" = "cygwin"; then
2047 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
2048 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
2049 # Tell the linker that emacs.res is an object (which we compile from
2050 # the rc file), not a linker script.
2051 W32_RES_LINK="-Wl,emacs.res"
2053 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
2054 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
2055 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
2056 W32_RES_LINK="\$(EMACSRES)"
2057 CLIENTRES="emacsclient.res"
2058 CLIENTW="emacsclientw\$(EXEEXT)"
2059 FIRSTFILE_OBJ=firstfile.o
2062 LIBS_ECLIENT="-lcomctl32"
2063 LIB_WSOCK32="-lwsock32"
2064 NTLIB="ntlib.$ac_objext"
2065 XARGS_LIMIT="-s 10000"
2071 AC_SUBST(EMACS_MANIFEST)
2074 AC_SUBST(W32_RES_LINK)
2075 AC_SUBST(FIRSTFILE_OBJ)
2078 AC_SUBST(LIBS_ECLIENT)
2079 AC_SUBST(LIB_WSOCK32)
2081 AC_SUBST(XARGS_LIMIT)
2083 if test "${HAVE_W32}" = "yes"; then
2088 ## $window_system is now set to the window system we will
2096 case "${window_system}" in
2101 case "${with_x_toolkit}" in
2102 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
2103 motif ) USE_X_TOOLKIT=MOTIF ;;
2105 term_header=gtkutil.h
2106 dnl Don't set this for GTK. A lot of tests below assumes Xt when
2107 dnl USE_X_TOOLKIT is set.
2108 USE_X_TOOLKIT=none ;;
2109 gtk2 ) with_gtk2=yes
2110 term_header=gtkutil.h
2111 USE_X_TOOLKIT=none ;;
2112 gtk3 ) with_gtk3=yes
2113 term_header=gtkutil.h
2114 USE_X_TOOLKIT=none ;;
2115 no ) USE_X_TOOLKIT=none ;;
2116 dnl If user did not say whether to use a toolkit, make this decision later:
2117 dnl use the toolkit if we have gtk, or X11R5 or newer.
2118 * ) USE_X_TOOLKIT=maybe ;;
2122 term_header=nsterm.h
2125 term_header=w32term.h
2129 if test "$window_system" = none && test "X$with_x" != "Xno"; then
2130 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
2131 if test "$HAVE_XSERVER" = true ||
2132 test -n "$DISPLAY" ||
2134 for emacs_libX11 in /usr/lib/libX11.*; do break; done
2135 test "$emacs_libX11" != '/usr/lib/libX11.*'
2138 AC_MSG_ERROR([You seem to be running X, but no X development libraries
2139 were found. You should install the relevant development files for X
2140 and for the toolkit you want, such as Gtk+ or Motif. Also make
2141 sure you have development files for image handling, i.e.
2142 tiff, gif, jpeg, png and xpm.
2143 If you are sure you want Emacs compiled without X window support, pass
2149 # Does the opsystem file prohibit the use of the GNU malloc?
2150 # Assume not, until told otherwise.
2154 [whether malloc is Doug Lea style],
2155 [emacs_cv_var_doug_lea_malloc],
2156 [emacs_cv_var_doug_lea_malloc=no
2157 dnl Hooks do not work with address sanitization.
2158 if test "$emacs_cv_sanitize_address" != yes; then
2161 [[#include <malloc.h>
2162 static void hook (void) {}]],
2163 [[malloc_set_state (malloc_get_state ());
2164 __after_morecore_hook = hook;
2165 __malloc_initialize_hook = hook;]])],
2166 [emacs_cv_var_doug_lea_malloc=yes])
2168 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
2173 test "$CANNOT_DUMP" = yes ||
2175 ## darwin ld insists on the use of malloc routines in the System framework.
2176 darwin | mingw32 | nacl | sol2-10) ;;
2177 cygwin) hybrid_malloc=yes
2179 *) test "$ac_cv_func_sbrk" = yes && system_malloc=$emacs_cv_sanitize_address;;
2182 if test "${system_malloc}" != yes && test "${doug_lea_malloc}" != yes \
2183 && test "${UNEXEC_OBJ}" = unexelf.o; then
2189 if test "${system_malloc}" = "yes"; then
2190 AC_DEFINE([SYSTEM_MALLOC], 1,
2191 [Define to 1 to use the system memory allocator, even if it is not
2195 (The GNU allocators don't work with this system configuration.)"
2197 elif test "$hybrid_malloc" = yes; then
2198 AC_DEFINE(HYBRID_MALLOC, 1,
2199 [Define to use gmalloc before dumping and the system malloc after.])
2202 GNU_MALLOC_reason=" (only before dumping)"
2203 GMALLOC_OBJ=gmalloc.o
2206 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
2207 VMLIMIT_OBJ=vm-limit.o
2209 AC_CHECK_HEADERS([sys/vlimit.h])
2210 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
2213 [[extern char data_start[]; char ch;]],
2214 [[return data_start < &ch;]])],
2215 [emacs_cv_data_start=yes],
2216 [emacs_cv_data_start=no])])
2217 if test $emacs_cv_data_start = yes; then
2218 AC_DEFINE([HAVE_DATA_START], 1,
2219 [Define to 1 if data_start is the address of the start
2220 of the main data segment.])
2223 AC_SUBST([HYBRID_MALLOC])
2224 AC_SUBST(GMALLOC_OBJ)
2225 AC_SUBST(VMLIMIT_OBJ)
2227 if test "$doug_lea_malloc" = "yes" && test "$hybrid_malloc" != yes; then
2228 if test "$GNU_MALLOC" = yes ; then
2230 (Using Doug Lea's new malloc from the GNU C Library.)"
2232 AC_DEFINE(DOUG_LEA_MALLOC, 1,
2233 [Define to 1 if the system memory allocator is Doug Lea style,
2234 with malloc hooks and malloc_set_state.])
2236 ## Use mmap directly for allocating larger buffers.
2237 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
2238 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
2239 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
2241 mingw32|gnu*) REL_ALLOC=no ;;
2245 if test x"${REL_ALLOC}" = x; then
2246 REL_ALLOC=${GNU_MALLOC}
2249 use_mmap_for_buffers=no
2251 mingw32) use_mmap_for_buffers=yes ;;
2255 if test $use_mmap_for_buffers = yes; then
2256 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
2260 LIBS="$LIBS_SYSTEM $LIBS"
2262 dnl FIXME replace main with a function we actually want from this library.
2263 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
2265 dnl Check for the POSIX thread library.
2267 AC_CHECK_HEADERS_ONCE(pthread.h)
2268 if test "$ac_cv_header_pthread_h" && test "$opsys" != "mingw32"; then
2269 AC_CACHE_CHECK([for pthread library],
2270 [emacs_cv_pthread_lib],
2271 [emacs_cv_pthread_lib=no
2273 for emacs_pthread_lib in 'none needed' -lpthread; do
2274 case $emacs_pthread_lib in
2275 -*) LIBS="$OLD_LIBS $emacs_pthread_lib";;
2279 [[#include <pthread.h>
2281 sigset_t old_mask, new_mask;
2282 void noop (void) {}]],
2283 [[pthread_t th = pthread_self ();
2285 status += pthread_create (&th, 0, 0, 0);
2286 status += pthread_sigmask (SIG_BLOCK, &new_mask, &old_mask);
2287 status += pthread_kill (th, 0);
2288 #if ! (defined SYSTEM_MALLOC || defined HYBRID_MALLOC \
2289 || defined DOUG_LEA_MALLOC)
2290 /* Test for pthread_atfork only if gmalloc uses it,
2291 as older-style hosts like MirBSD 10 lack it. */
2292 status += pthread_atfork (noop, noop, noop);
2295 [emacs_cv_pthread_lib=$emacs_pthread_lib])
2297 if test "$emacs_cv_pthread_lib" != no; then
2301 if test "$emacs_cv_pthread_lib" != no; then
2302 AC_DEFINE([HAVE_PTHREAD], 1, [Define to 1 if you have POSIX threads.])
2303 case $emacs_cv_pthread_lib in
2304 -*) LIB_PTHREAD=$emacs_cv_pthread_lib;;
2306 ac_cv_func_pthread_sigmask=yes
2307 # Some systems optimize for single-threaded programs by default, and
2308 # need special flags to disable these optimizations. For example, the
2309 # definition of 'errno' in <errno.h>.
2312 AC_DEFINE([_REENTRANT], 1,
2313 [Define to 1 if your system requires this in multithreaded code.]);;
2315 AC_DEFINE([_THREAD_SAFE], 1,
2316 [Define to 1 if your system requires this in multithreaded code.]);;
2320 AC_SUBST([LIB_PTHREAD])
2322 AC_MSG_CHECKING([for thread support])
2324 if test "$with_threads" = yes; then
2325 if test "$emacs_cv_pthread_lib" != no; then
2326 AC_DEFINE(THREADS_ENABLED, 1,
2327 [Define to 1 if you want elisp thread support.])
2329 elif test "${opsys}" = "mingw32"; then
2330 dnl MinGW can do native Windows threads even without pthreads
2331 AC_DEFINE(THREADS_ENABLED, 1,
2332 [Define to 1 if you want elisp thread support.])
2336 AC_MSG_RESULT([$threads_enabled])
2338 dnl Check for need for bigtoc support on IBM AIX
2342 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
2344 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
2345 *) gdb_cv_bigtoc=-bbigtoc ;;
2348 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
2349 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
2354 # Change CFLAGS, CPPFLAGS, and LIBS temporarily so that C_SWITCH_X_SITE
2355 # is for the tests that follow. We set them back later on.
2357 REAL_CFLAGS="$CFLAGS"
2358 REAL_CPPFLAGS="$CPPFLAGS"
2361 if test "${HAVE_X11}" = "yes"; then
2362 DEFS="$C_SWITCH_X_SITE $DEFS"
2363 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2365 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2366 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2368 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2369 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2370 # but it's more convenient here to set LD_RUN_PATH since this
2371 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2372 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2373 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2377 if test "${opsys}" = "gnu-linux"; then
2378 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2379 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2380 [[XOpenDisplay ("foo");]])],
2381 [xgnu_linux_first_failure=no],
2382 [xgnu_linux_first_failure=yes])
2383 if test "${xgnu_linux_first_failure}" = "yes"; then
2384 OLD_CPPFLAGS="$CPPFLAGS"
2386 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2387 LIBS="$LIBS -b i486-linuxaout"
2388 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2389 [[XOpenDisplay ("foo");]])],
2390 [xgnu_linux_second_failure=no],
2391 [xgnu_linux_second_failure=yes])
2392 if test "${xgnu_linux_second_failure}" = "yes"; then
2393 # If we get the same failure with -b, there is no use adding -b.
2394 # So leave it out. This plays safe.
2397 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2398 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2401 CPPFLAGS=$OLD_CPPFLAGS
2408 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2409 # header files included from there.
2410 AC_MSG_CHECKING(for Xkb)
2411 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2412 #include <X11/XKBlib.h>]],
2413 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2414 emacs_xkb=yes, emacs_xkb=no)
2415 AC_MSG_RESULT($emacs_xkb)
2416 if test $emacs_xkb = yes; then
2417 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2420 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2421 XScreenNumberOfScreen)
2424 if test "${window_system}" = "x11"; then
2425 AC_MSG_CHECKING(X11 version 6)
2426 AC_CACHE_VAL(emacs_cv_x11_version_6,
2427 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2428 [[#if XlibSpecificationRelease < 6
2431 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2432 if test $emacs_cv_x11_version_6 = yes; then
2433 AC_MSG_RESULT(6 or newer)
2434 AC_DEFINE(HAVE_X11R6, 1,
2435 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2436 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2437 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2441 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2442 [Define if you have usable X11R6-style XIM support.])
2446 AC_MSG_RESULT(before 6)
2451 ### Use -lrsvg-2 if available, unless '--with-rsvg=no' is specified.
2453 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2454 if test "${with_rsvg}" != "no"; then
2455 RSVG_REQUIRED=2.11.0
2456 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2458 EMACS_CHECK_MODULES([RSVG], [$RSVG_MODULE])
2459 AC_SUBST(RSVG_CFLAGS)
2462 if test $HAVE_RSVG = yes; then
2463 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2464 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2465 # Windows loads librsvg dynamically
2466 if test "${opsys}" = "mingw32"; then
2474 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${HAVE_W32}" = "yes"; then
2475 if test "${with_imagemagick}" != "no"; then
2476 ## 6.3.5 is the earliest version known to work; see Bug#17339.
2477 ## 6.8.2 makes Emacs crash; see Bug#13867.
2478 IMAGEMAGICK_MODULE="Wand >= 6.3.5 Wand != 6.8.2"
2479 EMACS_CHECK_MODULES([IMAGEMAGICK], [$IMAGEMAGICK_MODULE])
2480 AC_SUBST(IMAGEMAGICK_CFLAGS)
2481 AC_SUBST(IMAGEMAGICK_LIBS)
2483 if test $HAVE_IMAGEMAGICK = yes; then
2484 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2487 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2488 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2489 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers MagickAutoOrientImage)
2496 AC_CHECK_LIB(anl, getaddrinfo_a, HAVE_GETADDRINFO_A=yes)
2497 if test "${HAVE_GETADDRINFO_A}" = "yes"; then
2498 AC_DEFINE(HAVE_GETADDRINFO_A, 1,
2499 [Define to 1 if you have getaddrinfo_a for asynchronous DNS resolution.])
2500 GETADDRINFO_A_LIBS="-lanl"
2501 AC_SUBST(GETADDRINFO_A_LIBS)
2506 gtk_term_header=$term_header
2509 if test "${opsys}" != "mingw32"; then
2510 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2513 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2515 dnl Checks for libraries.
2516 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2517 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2518 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2519 AC_MSG_ERROR($GTK_PKG_ERRORS)
2521 if test "$pkg_check_gtk" = "yes"; then
2522 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2523 GTK_OBJ=emacsgtkfixed.o
2524 gtk_term_header=gtkutil.h
2525 USE_GTK_TOOLKIT="GTK3"
2526 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2527 AC_DEFINE([GDK_DISABLE_DEPRECATION_WARNINGS], [1],
2528 [Define to 1 to disable GTK+/GDK deprecation warnings.])
2529 AC_DEFINE([GLIB_DISABLE_DEPRECATION_WARNINGS], [1],
2530 [Define to 1 to disable Glib deprecation warnings.])
2534 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2538 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2541 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2543 dnl Checks for libraries.
2544 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2545 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2546 if test "$pkg_check_gtk" = "no" &&
2547 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2549 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2551 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2558 if test x"$pkg_check_gtk" = xyes; then
2561 CFLAGS="$CFLAGS $GTK_CFLAGS"
2562 LIBS="$GTK_LIBS $LIBS"
2563 dnl Try to compile a simple GTK program.
2564 AC_MSG_CHECKING([whether GTK compiles])
2568 [[/* Check the Gtk and Glib APIs. */
2569 #include <gtk/gtk.h>
2570 #include <glib-object.h>
2572 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2576 GtkSettings *gs = 0;
2577 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2578 strict C prohibits this. Use gtk_main_iteration to test that the
2579 libraries are there. */
2580 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2581 0, 0, 0, G_CALLBACK (callback), 0))
2582 gtk_main_iteration ();
2585 AC_MSG_RESULT([$GTK_COMPILES])
2586 if test "${GTK_COMPILES}" != "yes"; then
2588 if test "$USE_X_TOOLKIT" != "maybe"; then
2589 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2592 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2594 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2595 GTK_OBJ="gtkutil.o $GTK_OBJ"
2596 term_header=$gtk_term_header
2598 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2599 closing open displays. This is no problem if you just use
2600 one display, but if you use more than one and close one of them
2602 See http://bugzilla.gnome.org/show_bug.cgi?id=85715]])
2610 if test "${HAVE_GTK}" = "yes"; then
2612 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2613 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2614 if test "$with_toolkit_scroll_bars" != no; then
2615 with_toolkit_scroll_bars=yes
2618 dnl Check if we have the old file selection dialog declared and
2619 dnl in the link library. In 2.x it may be in the library,
2620 dnl but not declared if deprecated featured has been selected out.
2621 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2622 HAVE_GTK_FILE_SELECTION=no
2623 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2624 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2625 #include <gtk/gtk.h>])
2626 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2627 AC_CHECK_FUNCS(gtk_file_selection_new)
2630 dnl Same as above for gtk_handle_box.
2631 HAVE_GTK_HANDLE_BOX=no
2632 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2633 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2634 #include <gtk/gtk.h>])
2635 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2636 AC_CHECK_FUNCS(gtk_handle_box_new)
2639 dnl Same as above for gtk_tearoff_menu_item.
2640 HAVE_GTK_TEAROFF_MENU_ITEM=no
2641 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2642 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2643 #include <gtk/gtk.h>])
2644 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2645 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2648 dnl Check for functions introduced in 2.14 and later.
2649 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2650 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2651 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2652 gtk_orientable_set_orientation \
2653 gtk_window_set_has_resize_grip)
2655 term_header=gtkutil.h
2659 dnl Enable xwidgets if GTK3 and WebKitGTK+ are available.
2662 if test "$with_xwidgets" != "no"; then
2663 test "$USE_GTK_TOOLKIT" = "GTK3" && test "$window_system" != "none" ||
2664 AC_MSG_ERROR([xwidgets requested but gtk3 not used.])
2666 WEBKIT_REQUIRED=2.12
2667 WEBKIT_MODULES="webkit2gtk-4.0 >= $WEBKIT_REQUIRED"
2668 EMACS_CHECK_MODULES([WEBKIT], [$WEBKIT_MODULES])
2669 HAVE_XWIDGETS=$HAVE_WEBKIT
2670 test $HAVE_XWIDGETS = yes ||
2671 AC_MSG_ERROR([xwidgets requested but WebKitGTK+ not found.])
2673 XWIDGETS_OBJ=xwidget.o
2674 AC_DEFINE([HAVE_XWIDGETS], 1, [Define to 1 if you have xwidgets support.])
2676 AC_SUBST(XWIDGETS_OBJ)
2681 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2682 dnl other platforms.
2685 if test "${with_dbus}" = "yes"; then
2686 EMACS_CHECK_MODULES([DBUS], [dbus-1 >= 1.0])
2687 if test "$HAVE_DBUS" = yes; then
2688 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2689 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2690 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2693 LIBS="$LIBS $DBUS_LIBS"
2694 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2695 dbus_type_is_valid \
2696 dbus_validate_bus_name \
2697 dbus_validate_path \
2698 dbus_validate_interface \
2699 dbus_validate_member)
2704 AC_SUBST(DBUS_CFLAGS)
2708 dnl GSettings has been tested under GNU/Linux only.
2710 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2711 EMACS_CHECK_MODULES([GSETTINGS], [gio-2.0 >= 2.26])
2712 if test "$HAVE_GSETTINGS" = "yes"; then
2714 CFLAGS="$CFLAGS $GSETTINGS_CFLAGS"
2716 LIBS="$LIBS $GSETTINGS_LIBS"
2717 AC_MSG_CHECKING([whether GSettings is in gio])
2720 [[/* Check that gsettings really is present. */
2721 #include <glib-object.h>
2722 #include <gio/gio.h>
2725 GSettings *settings;
2726 GVariant *val = g_settings_get_value (settings, "");
2728 [], HAVE_GSETTINGS=no)
2729 AC_MSG_RESULT([$HAVE_GSETTINGS])
2731 if test "$HAVE_GSETTINGS" = "yes"; then
2732 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2733 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2734 SETTINGS_LIBS="$GSETTINGS_LIBS"
2741 dnl GConf has been tested under GNU/Linux only.
2742 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2744 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2745 EMACS_CHECK_MODULES([GCONF], [gconf-2.0 >= 2.13])
2746 if test "$HAVE_GCONF" = yes; then
2747 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2748 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2749 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2750 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2754 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2755 EMACS_CHECK_MODULES([GOBJECT], [gobject-2.0 >= 2.0])
2756 if test "$HAVE_GOBJECT" = "yes"; then
2757 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2758 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2760 SAVE_CFLAGS="$CFLAGS"
2762 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2763 LIBS="$SETTINGS_LIBS $LIBS"
2764 CFLAGS="$SAVE_CFLAGS"
2767 AC_SUBST(SETTINGS_CFLAGS)
2768 AC_SUBST(SETTINGS_LIBS)
2771 dnl SELinux is available for GNU/Linux only.
2774 if test "${with_selinux}" = "yes"; then
2775 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2776 if test "$HAVE_LIBSELINUX" = yes; then
2777 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2778 LIBSELINUX_LIBS=-lselinux
2781 AC_SUBST(LIBSELINUX_LIBS)
2784 if test "${with_gnutls}" = "yes" ; then
2785 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.12.2],
2786 [HAVE_GNUTLS=yes], [HAVE_GNUTLS=no])
2787 if test "${HAVE_GNUTLS}" = "yes"; then
2788 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2789 EMACS_CHECK_MODULES([LIBGNUTLS3], [gnutls >= 3.0.0],
2790 [AC_DEFINE(HAVE_GNUTLS3, 1, [Define if using GnuTLS v3.])], [])
2793 # Windows loads GnuTLS dynamically
2794 if test "${opsys}" = "mingw32"; then
2799 AC_SUBST(LIBGNUTLS_LIBS)
2800 AC_SUBST(LIBGNUTLS_CFLAGS)
2803 if test "${with_libsystemd}" = "yes" ; then
2804 dnl This code has been tested with libsystemd 222 and later.
2805 dnl FIXME: Find the earliest version number for which Emacs should work,
2806 dnl and change '222' to that number.
2807 EMACS_CHECK_MODULES([LIBSYSTEMD], [libsystemd >= 222],
2808 [HAVE_LIBSYSTEMD=yes], [HAVE_LIBSYSTEMD=no])
2809 if test "${HAVE_LIBSYSTEMD}" = "yes"; then
2810 AC_DEFINE(HAVE_LIBSYSTEMD, 1, [Define if using libsystemd.])
2814 AC_SUBST(LIBSYSTEMD_LIBS)
2815 AC_SUBST(LIBSYSTEMD_CFLAGS)
2820 dnl MS Windows native file monitor is available for mingw32 only.
2821 case $with_file_notification,$opsys in
2823 AC_MSG_ERROR(['--with-file-notification=w32' was specified, but
2824 this is only supported on MS-Windows native and MinGW32 builds.
2825 Consider using gfile instead.])
2827 w32,* | yes,mingw32)
2828 AC_CHECK_HEADER(windows.h)
2829 if test "$ac_cv_header_windows_h" = yes ; then
2830 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2831 NOTIFY_OBJ=w32notify.o
2832 NOTIFY_SUMMARY="yes (w32)"
2836 dnl inotify is available only on GNU/Linux.
2837 case $with_file_notification,$NOTIFY_OBJ in
2839 AC_CHECK_HEADER(sys/inotify.h)
2840 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2841 AC_CHECK_FUNC(inotify_init1)
2842 if test "$ac_cv_func_inotify_init1" = yes; then
2843 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2844 NOTIFY_OBJ=inotify.o
2845 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2850 dnl kqueue is available on BSD-like systems.
2851 case $with_file_notification,$NOTIFY_OBJ in
2853 EMACS_CHECK_MODULES([KQUEUE], [libkqueue])
2854 if test "$HAVE_KQUEUE" = "yes"; then
2855 AC_DEFINE(HAVE_KQUEUE, 1, [Define to 1 to use kqueue.])
2856 CPPFLAGS="$CPPFLAGS -I/usr/include/kqueue"
2857 NOTIFY_CFLAGS=$KQUEUE_CFLAGS
2858 NOTIFY_LIBS=$KQUEUE_LIBS
2860 NOTIFY_SUMMARY="yes -lkqueue"
2862 AC_SEARCH_LIBS(kqueue, [])
2863 if test "$ac_cv_search_kqueue" != no; then
2864 AC_DEFINE(HAVE_KQUEUE, 1, [Define to 1 to use kqueue.])
2866 NOTIFY_SUMMARY="yes (kqueue)"
2871 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2872 dnl has been added in glib 2.24. It has been tested under
2874 case $with_file_notification,$NOTIFY_OBJ in
2876 if test "${HAVE_NS}" = yes; then
2877 AC_MSG_ERROR(['--with-file-notification=gfile' is not supported in NextStep builds.
2878 Consider kqueue instead.])
2880 EMACS_CHECK_MODULES([GFILENOTIFY], [gio-2.0 >= 2.24])
2881 if test "$HAVE_GFILENOTIFY" = "yes"; then
2882 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2883 NOTIFY_CFLAGS=$GFILENOTIFY_CFLAGS
2884 NOTIFY_LIBS=$GFILENOTIFY_LIBS
2885 NOTIFY_OBJ=gfilenotify.o
2886 NOTIFY_SUMMARY="yes -lgio (gfile)"
2891 case $with_file_notification,$NOTIFY_OBJ in
2892 yes,* | no,* | *,?*) ;;
2893 *) AC_MSG_ERROR([File notification '$with_file_notification' requested but requirements not found.]) ;;
2896 if test -n "$NOTIFY_OBJ"; then
2897 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2899 AC_SUBST(NOTIFY_CFLAGS)
2900 AC_SUBST(NOTIFY_LIBS)
2901 AC_SUBST(NOTIFY_OBJ)
2903 dnl Do not put whitespace before the #include statements below.
2904 dnl Older compilers (eg sunos4 cc) choke on it.
2907 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2908 if test "$with_xaw3d" != no; then
2909 AC_CACHE_VAL(emacs_cv_xaw3d,
2910 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2911 #include <X11/Intrinsic.h>
2912 #include <X11/Xaw3d/Simple.h>]],
2914 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2915 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2916 emacs_cv_xaw3d=no)])
2920 if test $emacs_cv_xaw3d = yes; then
2921 AC_MSG_CHECKING(for xaw3d)
2922 AC_MSG_RESULT([yes; using Lucid toolkit])
2926 AC_DEFINE(HAVE_XAW3D, 1,
2927 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2929 AC_MSG_CHECKING(for xaw3d)
2931 AC_MSG_CHECKING(for libXaw)
2932 AC_CACHE_VAL(emacs_cv_xaw,
2933 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2934 #include <X11/Intrinsic.h>
2935 #include <X11/Xaw/Simple.h>]],
2939 if test $emacs_cv_xaw = yes; then
2940 AC_MSG_RESULT([yes; using Lucid toolkit])
2943 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2944 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2946 AC_MSG_ERROR([No X toolkit could be found.
2947 If you are sure you want Emacs compiled without an X toolkit, pass
2949 to configure. Otherwise, install the development libraries for the toolkit
2950 that you want to use (e.g. Gtk+) and re-run configure.])
2955 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2959 if test "${USE_X_TOOLKIT}" != "none"; then
2960 AC_MSG_CHECKING(X11 toolkit version)
2961 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2962 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2963 [[#if XtSpecificationRelease < 6
2966 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2967 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2968 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2969 AC_MSG_RESULT(6 or newer)
2970 AC_DEFINE(HAVE_X11XTR6, 1,
2971 [Define to 1 if you have the X11R6 or newer version of Xt.])
2972 LIBXTR6="-lSM -lICE"
2974 ## Use libw.a along with X11R6 Xt.
2975 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2978 AC_MSG_RESULT(before 6)
2981 dnl If using toolkit, check whether libXmu.a exists.
2982 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2984 if test x$HAVE_X11XTR6 = xyes; then
2985 OTHERLIBS='-lXt -lSM -lICE'
2989 AC_SEARCH_LIBS([XmuConvertStandardSelection], [Xmu], [], [], [$OTHERLIBS])
2990 if test "X$LIBS" != "X$OLDLIBS"; then
2991 LIBXMU=$ac_cv_search_XmuConvertStandardSelection
2994 dnl ac_cv_search_XmuConvertStandardSelection is also referenced below.
3000 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
3001 # OpenMotif may be installed in such a way on some GNU/Linux systems.
3002 if test -d /usr/include/openmotif; then
3003 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
3004 emacs_cv_openmotif=yes
3005 case "$canonical" in
3006 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
3007 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
3010 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
3013 emacs_cv_openmotif=no
3015 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
3016 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
3017 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
3020 Motif version prior to 2.1.
3022 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
3023 if test $emacs_cv_motif_version_2_1 = yes; then
3024 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
3025 if test x$emacs_cv_openmotif = xyes; then
3026 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
3029 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
3030 # We put this in CFLAGS temporarily to precede other -I options
3031 # that might be in CFLAGS temporarily.
3032 # We put this in CPPFLAGS where it precedes the other -I options.
3033 OLD_CPPFLAGS=$CPPFLAGS
3035 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
3036 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
3037 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
3039 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
3040 if test $emacs_cv_lesstif = yes; then
3041 # Make sure this -I option remains in CPPFLAGS after it is set
3042 # back to REAL_CPPFLAGS.
3043 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
3044 # have those other -I options anyway. Ultimately, having this
3045 # directory ultimately in CPPFLAGS will be enough.
3046 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
3047 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
3050 CPPFLAGS=$OLD_CPPFLAGS
3053 AC_CHECK_HEADER([Xm/BulletinB.h], [],
3054 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
3057 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
3058 dnl using Motif or Xaw3d is available, and unless
3059 dnl --with-toolkit-scroll-bars=no was specified.
3061 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
3062 [Define to 1 if we should use toolkit scroll bars.])dnl
3063 USE_TOOLKIT_SCROLL_BARS=no
3064 if test "${with_toolkit_scroll_bars}" != "no"; then
3065 if test "${USE_X_TOOLKIT}" != "none"; then
3066 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
3067 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3069 USE_TOOLKIT_SCROLL_BARS=yes
3070 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
3071 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3072 USE_TOOLKIT_SCROLL_BARS=yes
3074 elif test "${HAVE_GTK}" = "yes"; then
3075 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3076 USE_TOOLKIT_SCROLL_BARS=yes
3077 elif test "${HAVE_NS}" = "yes"; then
3078 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3079 USE_TOOLKIT_SCROLL_BARS=yes
3080 elif test "${HAVE_W32}" = "yes"; then
3081 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3082 USE_TOOLKIT_SCROLL_BARS=yes
3086 dnl See if XIM is available.
3087 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
3088 #include <X11/Xlib.h>
3089 #include <X11/Xresource.h>]],
3090 [[XIMProc callback;]])],
3092 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
3095 dnl '--with-xim' now controls only the initial value of use_xim at run time.
3097 if test "${with_xim}" != "no"; then
3098 AC_DEFINE(USE_XIM, 1,
3099 [Define to 1 if we should use XIM, if it is available.])
3103 if test "${HAVE_XIM}" != "no"; then
3105 if test "$GCC" = yes; then
3106 CFLAGS="$CFLAGS --pedantic-errors"
3108 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
3109 #include <X11/Xlib.h>
3110 #include <X11/Xresource.h>]],
3116 XPointer *client_data;
3118 /* If we're not using GCC, it's probably not XFree86, and this is
3119 probably right, but we can't use something like --pedantic-errors. */
3120 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
3121 char*, XIMProc, XPointer*);
3123 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
3125 [emacs_cv_arg6_star=yes])
3126 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
3127 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
3128 either XPointer or XPointer*.])dnl
3129 if test "$emacs_cv_arg6_star" = yes; then
3130 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
3132 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
3137 ### Start of font-backend (under any platform) section.
3138 # (nothing here yet -- this is a placeholder)
3139 ### End of font-backend (under any platform) section.
3141 ### Start of font-backend (under X11) section.
3142 if test "${HAVE_X11}" = "yes"; then
3143 ## Use -lXft if available, unless '--with-xft=no'.
3145 if test "x${with_x}" = "xno"; then
3149 if test "$with_xft" != no; then
3150 EMACS_CHECK_MODULES([FONTCONFIG], [fontconfig >= 2.2.0])
3151 with_xft=$HAVE_FONTCONFIG
3154 if test "x${with_xft}" != "xno"; then
3156 EMACS_CHECK_MODULES([XFT], [xft >= 0.13.0], [], [HAVE_XFT=no])
3157 ## Because xftfont.c uses XRenderQueryExtension, we also
3158 ## need to link to -lXrender.
3160 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
3161 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
3162 OLD_CPPFLAGS="$CPPFLAGS"
3163 OLD_CFLAGS="$CFLAGS"
3165 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
3166 CFLAGS="$CFLAGS $XFT_CFLAGS"
3167 XFT_LIBS="-lXrender $XFT_LIBS"
3168 LIBS="$XFT_LIBS $LIBS"
3169 AC_CHECK_HEADER(X11/Xft/Xft.h,
3170 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
3171 [[#include <X11/X.h>]])
3173 if test "${HAVE_XFT}" = "yes"; then
3174 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
3176 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
3177 fi # "${HAVE_XFT}" = "yes"
3178 CPPFLAGS=$OLD_CPPFLAGS
3181 fi # "$HAVE_XFT" != no
3182 fi # "x${with_xft}" != "xno"
3184 ## We used to allow building with FreeType and without Xft.
3185 ## However, the ftx font backend driver is not in good shape.
3186 if test "$HAVE_XFT" != "yes"; then
3187 dnl For the "Does Emacs use" message at the end.
3191 dnl Strict linkers fail with
3192 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
3193 dnl if -lfreetype is not specified.
3194 dnl The following is needed to set FREETYPE_LIBS.
3195 EMACS_CHECK_MODULES([FREETYPE], [freetype2])
3197 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
3201 if test "${HAVE_FREETYPE}" = "yes"; then
3202 AC_DEFINE(HAVE_FREETYPE, 1,
3203 [Define to 1 if using the freetype and fontconfig libraries.])
3204 if test "${with_libotf}" != "no"; then
3205 EMACS_CHECK_MODULES([LIBOTF], [libotf])
3206 if test "$HAVE_LIBOTF" = "yes"; then
3207 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
3208 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
3209 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
3210 HAVE_OTF_GET_VARIATION_GLYPHS=no)
3211 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
3212 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
3213 [Define to 1 if libotf has OTF_get_variation_glyphs.])
3217 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
3218 dnl Does the new font backend require it, or can it work without it?
3222 if test "${HAVE_LIBOTF}" = yes; then
3223 if test "${with_m17n_flt}" != "no"; then
3224 EMACS_CHECK_MODULES([M17N_FLT], [m17n-flt])
3225 if test "$HAVE_M17N_FLT" = "yes"; then
3226 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
3237 ### End of font-backend (under X11) section.
3239 AC_SUBST(FREETYPE_CFLAGS)
3240 AC_SUBST(FREETYPE_LIBS)
3241 AC_SUBST(FONTCONFIG_CFLAGS)
3242 AC_SUBST(FONTCONFIG_LIBS)
3243 AC_SUBST(LIBOTF_CFLAGS)
3244 AC_SUBST(LIBOTF_LIBS)
3245 AC_SUBST(M17N_FLT_CFLAGS)
3246 AC_SUBST(M17N_FLT_LIBS)
3249 if test "${HAVE_X11}" = "yes"; then
3250 if test "${with_cairo}" != "no"; then
3251 CAIRO_REQUIRED=1.12.0
3252 CAIRO_MODULE="cairo >= $CAIRO_REQUIRED"
3253 EMACS_CHECK_MODULES(CAIRO, $CAIRO_MODULE)
3254 if test $HAVE_CAIRO = yes; then
3255 AC_DEFINE(USE_CAIRO, 1, [Define to 1 if using cairo.])
3257 AC_MSG_ERROR([cairo requested but not found.])
3260 CFLAGS="$CFLAGS $CAIRO_CFLAGS"
3261 LIBS="$LIBS $CAIRO_LIBS"
3262 AC_SUBST(CAIRO_CFLAGS)
3263 AC_SUBST(CAIRO_LIBS)
3267 if test "${HAVE_X11}" = "yes"; then
3268 AC_CHECK_HEADER(X11/Xlib-xcb.h,
3269 AC_CHECK_LIB(xcb, xcb_translate_coordinates, HAVE_XCB=yes))
3270 if test "${HAVE_XCB}" = "yes"; then
3271 AC_CHECK_LIB(X11-xcb, XGetXCBConnection, HAVE_X11_XCB=yes)
3272 if test "${HAVE_X11_XCB}" = "yes"; then
3273 AC_DEFINE(USE_XCB, 1,
3274 [Define to 1 if you have the XCB library and X11-XCB library for mixed
3275 X11/XCB programming.])
3276 XCB_LIBS="-lX11-xcb -lxcb"
3282 ### Use -lXpm if available, unless '--with-xpm=no'.
3283 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
3284 ### The Cygwin-w32 build uses <noX/xpm.h> instead of <X11/xpm.h>, so
3285 ### we need to set LDFLAGS accordingly.
3288 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
3289 if test "${with_xpm}" != "no"; then
3290 SAVE_LDFLAGS="$LDFLAGS"
3291 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
3292 AC_CHECK_HEADER(noX/xpm.h,
3293 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
3294 if test "${HAVE_XPM}" = "yes"; then
3295 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3296 AC_EGREP_CPP(no_return_alloc_pixels,
3297 [#include "noX/xpm.h"
3298 #ifndef XpmReturnAllocPixels
3299 no_return_alloc_pixels
3301 ], HAVE_XPM=no, HAVE_XPM=yes)
3303 if test "${HAVE_XPM}" = "yes"; then
3307 LDFLAGS="$SAVE_LDFLAGS"
3312 if test "${HAVE_XPM}" = "yes"; then
3313 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3318 if test "${HAVE_X11}" = "yes"; then
3319 dnl Avoid Xpm on AIX unless requested, as it crashes; see Bug#17598.
3320 test "$opsys$with_xpm_set" = aix4-2 && with_xpm=no
3322 if test "${with_xpm}" != "no"; then
3323 AC_CHECK_HEADER(X11/xpm.h,
3324 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
3325 if test "${HAVE_XPM}" = "yes"; then
3326 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3327 AC_EGREP_CPP(no_return_alloc_pixels,
3328 [#include "X11/xpm.h"
3329 #ifndef XpmReturnAllocPixels
3330 no_return_alloc_pixels
3332 ], HAVE_XPM=no, HAVE_XPM=yes)
3334 if test "${HAVE_XPM}" = "yes"; then
3342 if test "${HAVE_XPM}" = "yes"; then
3343 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3345 elif test "$opsys,$LUCID_LIBW" = aix4-2,-lXaw; then
3346 dnl AIX -lXaw needs -lXpm linked too; see Bug#17598 Message#152.
3351 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
3352 ### slightly different requirements wrt image libraries (it doesn't
3353 ### use -lXpm because it loads the xpm shared library dynamically at
3355 if test "${opsys}" = "mingw32"; then
3356 if test "${with_xpm}" != "no"; then
3357 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
3361 if test "${HAVE_XPM}" = "yes"; then
3362 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3368 ### Use -ljpeg if available, unless '--with-jpeg=no'.
3371 if test "${with_jpeg}" != "no"; then
3372 AC_CACHE_CHECK([for jpeglib 6b or later],
3375 for emacs_cv_jpeglib in yes -ljpeg no; do
3376 case $emacs_cv_jpeglib in
3379 *) LIBS="$LIBS $emacs_cv_jpeglib";;
3383 [[#undef HAVE_STDLIB_H /* Avoid config.h/jpeglib.h collision. */
3384 #include <stdio.h> /* jpeglib.h needs FILE and size_t. */
3385 #include <jpeglib.h>
3387 char verify[JPEG_LIB_VERSION < 62 ? -1 : 1];
3388 struct jpeg_decompress_struct cinfo;
3391 jpeg_create_decompress (&cinfo);
3392 WARNMS (&cinfo, JWRN_JPEG_EOF);
3393 jpeg_destroy_decompress (&cinfo);
3395 [emacs_link_ok=yes],
3398 test $emacs_link_ok = yes && break
3400 if test "$emacs_cv_jpeglib" != no; then
3402 AC_DEFINE([HAVE_JPEG], 1,
3403 [Define to 1 if you have the jpeg library (typically -ljpeg).])
3404 ### mingw32 doesn't use -ljpeg, since it loads the library
3405 ### dynamically when needed, and doesn't want a run-time
3406 ### dependency on the jpeglib DLL.
3407 test "$emacs_cv_jpeglib" != yes && test "${opsys}" != "mingw32" \
3408 && LIBJPEG=$emacs_cv_jpeglib
3415 if test "${with_zlib}" != "no"; then
3417 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
3419 case $ac_cv_search_inflateEnd in
3420 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3423 if test "${HAVE_ZLIB}" = "yes"; then
3424 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3425 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3426 if test "${opsys}" = "mingw32"; then
3432 ### Dynamic modules support
3437 if test "${with_modules}" != "no"; then
3441 MODULES_SUFFIX=".so"
3445 MODULES_SUFFIX=".dll"
3449 MODULES_SUFFIX=".so"
3453 # BSD systems have dlopen in libc.
3454 AC_CHECK_FUNC([dlopen],
3455 [MODULES_SUFFIX=".so"
3460 if test "${HAVE_MODULES}" = no; then
3461 AC_MSG_ERROR([Dynamic modules are not supported on your system])
3464 LIBS="$LIBS $LIBMODULES"
3465 AC_CHECK_FUNCS([dladdr dlfunc])
3470 if test "${HAVE_MODULES}" = yes; then
3471 MODULES_OBJ="dynlib.o emacs-module.o"
3472 AC_DEFINE(HAVE_MODULES, 1, [Define to 1 if dynamic modules are enabled])
3473 AC_DEFINE_UNQUOTED(MODULES_SUFFIX, "$MODULES_SUFFIX",
3474 [System extension for dynamic libraries])
3476 AC_SUBST(MODULES_OBJ)
3477 AC_SUBST(LIBMODULES)
3478 AC_SUBST(HAVE_MODULES)
3479 AC_SUBST(MODULES_SUFFIX)
3481 ### Use -lpng if available, unless '--with-png=no'.
3485 if test "${NS_IMPL_COCOA}" = yes; then
3487 elif test "${with_png}" != no; then
3488 # mingw32 loads the library dynamically.
3489 if test "$opsys" = mingw32; then
3490 AC_CHECK_HEADER([png.h], [HAVE_PNG=yes])
3491 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3492 AC_MSG_CHECKING([for png])
3493 png_cflags=`(libpng-config --cflags) 2>&AS_MESSAGE_LOG_FD` &&
3494 png_ldflags=`(libpng-config --ldflags) 2>&AS_MESSAGE_LOG_FD` || {
3495 # libpng-config does not work; configure by hand.
3496 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
3497 # in /usr/include/libpng.
3498 if test -r /usr/include/libpng/png.h &&
3499 test ! -r /usr/include/png.h; then
3500 png_cflags=-I/usr/include/libpng
3508 CFLAGS="$CFLAGS $png_cflags"
3509 LIBS="$png_ldflags -lz -lm $LIBS"
3511 [AC_LANG_PROGRAM([[#include <png.h>]],
3512 [[return !png_get_channels (0, 0);]])],
3514 PNG_CFLAGS=`AS_ECHO(["$png_cflags"]) | sed -e "$edit_cflags"`
3516 # $LIBPNG requires explicit -lz in some cases.
3517 # We don't know what those cases are, exactly, so play it safe and
3518 # append -lz to any nonempty $LIBPNG, unless we're already using LIBZ.
3519 if test -n "$LIBPNG" && test -z "$LIBZ"; then
3520 LIBPNG="$LIBPNG -lz"
3524 AC_MSG_RESULT([$HAVE_PNG])
3527 if test $HAVE_PNG = yes; then
3528 AC_DEFINE([HAVE_PNG], [1], [Define to 1 if you have the png library.])
3531 CFLAGS="$CFLAGS $PNG_CFLAGS"
3532 AC_CHECK_DECL([png_longjmp],
3534 [AC_DEFINE([PNG_DEPSTRUCT], [],
3535 [Define to empty to suppress deprecation warnings when building
3536 with --enable-gcc-warnings and with libpng versions before 1.5,
3537 which lack png_longjmp.])],
3543 AC_SUBST(PNG_CFLAGS)
3545 ### Use -ltiff if available, unless '--with-tiff=no'.
3546 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3549 if test "${opsys}" = "mingw32"; then
3550 if test "${with_tiff}" != "no"; then
3551 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3553 if test "${HAVE_TIFF}" = "yes"; then
3554 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3556 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3557 if test "${with_tiff}" != "no"; then
3558 AC_CHECK_HEADER(tiffio.h,
3560 # At least one tiff package requires the jpeg library.
3561 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3562 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3565 if test "${HAVE_TIFF}" = "yes"; then
3566 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3567 dnl FIXME -lz -lm, as per libpng?
3573 ### Use -lgif or -lungif if available, unless '--with-gif=no'.
3574 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3577 if test "${opsys}" = "mingw32"; then
3578 if test "${with_gif}" != "no"; then
3579 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3581 if test "${HAVE_GIF}" = "yes"; then
3582 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3584 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3585 || test "${HAVE_W32}" = "yes"; then
3586 AC_CHECK_HEADER(gif_lib.h,
3587 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3588 # Earlier versions can crash Emacs, but version 5.0 removes EGifPutExtensionLast.
3589 [AC_CHECK_LIB(gif, GifMakeMapObject, HAVE_GIF=yes,
3590 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])])
3592 if test "$HAVE_GIF" = yes; then
3594 elif test "$HAVE_GIF" = maybe; then
3595 # If gif_lib.h but no libgif, try libungif.
3596 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3597 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3600 if test "${HAVE_GIF}" = "yes"; then
3601 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3606 dnl Check for required libraries.
3609 if test "${HAVE_X11}" = "yes"; then
3610 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3611 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3612 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3613 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3614 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3615 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3616 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3617 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3618 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3619 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3621 test "${with_gnutls}" != "no" && test "${HAVE_GNUTLS}" != "yes" &&
3622 MISSING="$MISSING gnutls" && WITH_NO="$WITH_NO --with-gnutls=no"
3623 if test "X${MISSING}" != X; then
3624 AC_MSG_ERROR([The following required libraries were not found:
3626 Maybe some development libraries/packages are missing?
3627 If you don't want to link with them give
3629 as options to configure])
3632 ### Use -lgpm if available, unless '--with-gpm=no'.
3635 if test "${with_gpm}" != "no"; then
3636 AC_CHECK_HEADER(gpm.h,
3637 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3639 if test "${HAVE_GPM}" = "yes"; then
3640 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3646 dnl Check for malloc/malloc.h on darwin
3647 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3650 ### Use NeXTstep API to implement GUI.
3651 if test "${HAVE_NS}" = "yes"; then
3652 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on macOS.])
3653 if test "${NS_IMPL_COCOA}" = "yes"; then
3654 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under macOS.])
3656 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3657 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3658 if test $NS_GNUSTEP_CONFIG != yes; then
3659 # See also .m.o rule in src/Makefile.in. */
3660 # FIXME: are all these flags really needed? Document here why. */
3661 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3662 ## Extra CFLAGS applied to src/*.m files.
3663 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3669 ### Use session management (-lSM -lICE) if available
3672 if test "${HAVE_X11}" = "yes"; then
3673 AC_CHECK_HEADER(X11/SM/SMlib.h,
3674 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3676 if test "${HAVE_X_SM}" = "yes"; then
3677 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3683 ### Use XRandr (-lXrandr) if available
3685 if test "${HAVE_X11}" = "yes"; then
3686 XRANDR_REQUIRED=1.2.2
3687 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3688 EMACS_CHECK_MODULES([XRANDR], [$XRANDR_MODULES])
3689 if test $HAVE_XRANDR = no; then
3690 # Test old way in case pkg-config doesn't have it (older machines).
3691 # Include Xrender.h by hand to work around bug in older Xrandr.h
3692 # (e.g. RHEL5) and silence (harmless) configure warning (bug#18465).
3693 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3694 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)],
3695 [], [AC_INCLUDES_DEFAULT
3696 #include <X11/extensions/Xrender.h>])
3697 if test $HAVE_XRANDR = yes; then
3698 XRANDR_LIBS=-lXrandr
3701 if test $HAVE_XRANDR = yes; then
3702 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3705 AC_SUBST(XRANDR_CFLAGS)
3706 AC_SUBST(XRANDR_LIBS)
3708 ### Use Xinerama (-lXinerama) if available
3710 if test "${HAVE_X11}" = "yes"; then
3711 XINERAMA_REQUIRED=1.0.2
3712 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3713 EMACS_CHECK_MODULES([XINERAMA], [$XINERAMA_MODULES])
3714 if test $HAVE_XINERAMA = no; then
3715 # Test old way in case pkg-config doesn't have it (older machines).
3716 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3717 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3718 if test $HAVE_XINERAMA = yes; then
3719 XINERAMA_LIBS=-lXinerama
3722 if test $HAVE_XINERAMA = yes; then
3723 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3726 AC_SUBST(XINERAMA_CFLAGS)
3727 AC_SUBST(XINERAMA_LIBS)
3729 ### Use Xfixes (-lXfixes) if available
3731 if test "${HAVE_X11}" = "yes"; then
3732 XFIXES_REQUIRED=4.0.0
3733 XFIXES_MODULES="xfixes >= $XFIXES_REQUIRED"
3734 EMACS_CHECK_MODULES([XFIXES], [$XFIXES_MODULES])
3735 if test $HAVE_XFIXES = no; then
3736 # Test old way in case pkg-config doesn't have it (older machines).
3737 AC_CHECK_HEADER(X11/extensions/Xfixes.h,
3738 [AC_CHECK_LIB(Xfixes, XFixesHideCursor, HAVE_XFIXES=yes)])
3739 if test $HAVE_XFIXES = yes; then
3740 XFIXES_LIBS=-lXfixes
3743 if test $HAVE_XFIXES = yes; then
3744 AC_DEFINE(HAVE_XFIXES, 1, [Define to 1 if you have the Xfixes extension.])
3747 AC_SUBST(XFIXES_CFLAGS)
3748 AC_SUBST(XFIXES_LIBS)
3750 ### Use Xdbe (-lXdbe) if available
3752 if test "${HAVE_X11}" = "yes"; then
3753 AC_CHECK_HEADER(X11/extensions/Xdbe.h,
3754 [AC_CHECK_LIB(Xext, XdbeAllocateBackBufferName, HAVE_XDBE=yes)],
3756 [#include <X11/Xlib.h>
3758 if test $HAVE_XDBE = yes; then
3761 if test $HAVE_XDBE = yes; then
3762 AC_DEFINE(HAVE_XDBE, 1, [Define to 1 if you have the Xdbe extension.])
3765 AC_SUBST(XDBE_CFLAGS)
3768 ### Use libxml (-lxml2) if available
3769 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3771 if test "${with_xml2}" != "no"; then
3772 ### I'm not sure what the version number should be, so I just guessed.
3773 EMACS_CHECK_MODULES([LIBXML2], [libxml-2.0 > 2.6.17])
3774 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3775 if test "${HAVE_LIBXML2}" != "yes" && test "$opsys" = "darwin"; then
3776 SAVE_CPPFLAGS="$CPPFLAGS"
3777 if test -z "$xcsdkdir" -a -n "$XCRUN" -a ! -d /usr/include; then
3778 dnl /usr/include is not found. Try Xcode SDK dir if it is sane.
3779 xcsdkdir=`$XCRUN --show-sdk-path 2>/dev/null`
3781 *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
3785 CPPFLAGS="$CPPFLAGS -I$xcsdkdir/usr/include/libxml2"
3786 AC_CHECK_HEADER(libxml/HTMLparser.h,
3787 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3788 [#include <libxml/HTMLparser.h>])])
3789 CPPFLAGS="$SAVE_CPPFLAGS"
3790 if test "${HAVE_LIBXML2}" = "yes"; then
3791 LIBXML2_CFLAGS="-I'$xcsdkdir/usr/include/libxml2'"
3792 LIBXML2_LIBS="-lxml2"
3795 if test "${HAVE_LIBXML2}" = "yes"; then
3796 if test "${opsys}" != "mingw32"; then
3797 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no,
3802 if test "${HAVE_LIBXML2}" = "yes"; then
3803 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3810 AC_SUBST(LIBXML2_LIBS)
3811 AC_SUBST(LIBXML2_CFLAGS)
3815 if test ! "$with_mailutils"; then
3816 # Check for mail-locking functions in a "mail" library. Probably this should
3817 # have the same check as for liblockfile below.
3818 AC_CHECK_LIB([mail], [maillock], [have_mail=yes], [have_mail=no])
3819 if test $have_mail = yes; then
3821 AC_DEFINE([HAVE_LIBMAIL], [1],
3822 [Define to 1 if you have the 'mail' library (-lmail).])
3825 LIBS="$LIBS_MAIL $LIBS"
3826 AC_CHECK_FUNCS([touchlock])
3829 dnl Debian, at least:
3830 AC_CHECK_LIB([lockfile], [maillock], [have_lockfile=yes], [have_lockfile=no])
3831 if test $have_lockfile = yes; then
3832 LIBS_MAIL=-llockfile
3833 AC_DEFINE([HAVE_LIBLOCKFILE], [1],
3834 [Define to 1 if you have the 'lockfile' library (-llockfile).])
3836 # If we have the shared liblockfile, assume we must use it for mail
3837 # locking (e.g. Debian). If we couldn't link against liblockfile
3838 # (no liblockfile.a installed), ensure that we don't need to.
3839 dnl This works for files generally, not just executables.
3840 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3841 AC_CHECK_PROG([liblockfile], [liblockfile.so], [yes], [no],
3842 [/usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH])
3843 if test "$ac_cv_prog_liblockfile" = yes; then
3844 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3845 This probably means that movemail could lose mail.
3846 There may be a 'development' package to install containing liblockfile.])
3849 AC_CHECK_HEADERS([maillock.h])
3851 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3852 ## interlock access to the mail spool. The alternative is a lock file named
3853 ## /usr/spool/mail/$USER.lock.
3856 aix4-2) mail_lock="lockf" ;;
3858 gnu|freebsd|dragonfly|netbsd|openbsd|darwin) mail_lock="flock" ;;
3860 ## On GNU/Linux systems, both methods are used by various mail programs.
3861 ## I assume most people are using newer mailers that have heard of flock.
3862 ## Change this if you need to.
3863 ## Debian contains a patch which says: "On Debian/GNU/Linux systems,
3864 ## configure gets the right answers, and that means *NOT* using flock.
3865 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3866 ## for details." and then uses '#ifdef DEBIAN'. Unfortunately the
3867 ## Debian maintainer hasn't provided a clean fix for Emacs.
3868 ## movemail.c will use 'maillock' when MAILDIR, HAVE_LIBMAIL and
3869 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3870 ## correct logic. -- fx
3871 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3872 ## liblockfile is a Free Software replacement for libmail, used on
3873 ## Debian systems and elsewhere. -rfr.
3876 if test $have_mail = yes || test $have_lockfile = yes; then
3877 test $ac_cv_header_maillock_h = yes && mail_lock=no
3881 mail_lock="none-needed" ;;
3885 flock) AC_DEFINE([MAIL_USE_FLOCK], [1],
3886 [Define if the mailer uses flock to interlock the mail spool.]);;
3888 lockf) AC_DEFINE([MAIL_USE_LOCKF], [1],
3889 [Define if the mailer uses lockf to interlock the mail spool.]);;
3893 *) BLESSMAIL_TARGET="need-blessmail" ;;
3896 AC_SUBST([BLESSMAIL_TARGET])
3897 AC_SUBST([LIBS_MAIL])
3900 LIBS="$LIB_PTHREAD $LIB_MATH $LIBS"
3901 AC_CHECK_FUNCS(accept4 fchdir gethostname \
3902 getrusage get_current_dir_name \
3903 lrand48 random rint trunc \
3904 select getpagesize setlocale newlocale \
3905 getrlimit setrlimit shutdown \
3906 pthread_sigmask strsignal setitimer \
3907 sendto recvfrom getsockname getifaddrs freeifaddrs \
3909 getpwent endpwent getgrent endgrent \
3910 cfmakeraw cfsetspeed __executable_start log2 prctl)
3913 dnl No need to check for posix_memalign if aligned_alloc works.
3914 AC_CHECK_FUNCS([aligned_alloc posix_memalign], [break])
3915 AC_CHECK_DECLS([aligned_alloc], [], [], [[#include <stdlib.h>]])
3917 dnl Cannot use AC_CHECK_FUNCS
3918 AC_CACHE_CHECK([for __builtin_unwind_init],
3919 emacs_cv_func___builtin_unwind_init,
3920 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3921 emacs_cv_func___builtin_unwind_init=yes,
3922 emacs_cv_func___builtin_unwind_init=no)])
3923 if test $emacs_cv_func___builtin_unwind_init = yes; then
3924 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3925 [Define to 1 if you have the '__builtin_unwind_init' function.])
3928 AC_CHECK_HEADERS_ONCE(sys/un.h)
3933 AC_CHECK_FUNCS(grantpt)
3935 # PTY-related GNU extensions.
3936 AC_CHECK_FUNCS(getpt posix_openpt)
3938 # Check this now, so that we will NOT find the above functions in ncurses.
3939 # That is because we have not set up to link ncurses in lib-src.
3940 # It's better to believe a function is not available
3941 # than to expect to find it in ncurses.
3942 # Also we need tputs and friends to be able to build at all.
3943 AC_MSG_CHECKING([for library containing tputs])
3944 # Run a test program that contains a call to tputs, a call that is
3945 # never executed. This tests whether a pre-'main' dynamic linker
3946 # works with the library. It's too much trouble to actually call
3947 # tputs in the test program, due to portability hassles. When
3948 # cross-compiling, assume the test program will run if it links.
3949 AC_DEFUN([tputs_link_source], [
3951 [[extern void tputs (const char *, int, int (*)(int));
3952 int main (int argc, char **argv)
3955 tputs (argv[0], 0, 0);
3959 if test "${opsys}" = "mingw32"; then
3962 # Maybe curses should be tried earlier?
3963 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3964 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3966 if test -z "$tputs_library"; then
3970 LIBS_TERMCAP=-l$tputs_library
3972 LIBS="$LIBS_TERMCAP $LIBS"
3974 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3975 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3977 if test "X$msg" != Xno; then
3982 AC_MSG_RESULT([$msg])
3983 if test "X$msg" = Xno; then
3984 AC_MSG_ERROR([The required function 'tputs' was not found in any library.
3985 The following libraries were tried (in order):
3986 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3987 Please try installing whichever of these libraries is most appropriate
3988 for your system, together with its header files.
3989 For example, a libncurses-dev(el) or similar package.])
3992 ## Use termcap instead of terminfo?
3993 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3995 ## FIXME? In the cases below where we unconditionally set
3996 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3997 ## if that was found above to have tputs.
3998 ## Should we use the gnu* logic everywhere?
4000 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
4001 ## The ncurses library has been moved out of the System framework in
4002 ## Mac OS X 10.2. So if configure detects it, set the command-line
4003 ## option to use it.
4004 darwin) LIBS_TERMCAP="-lncurses" ;;
4006 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
4009 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
4010 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
4011 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
4012 [[#if __FreeBSD_version < 400000
4015 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
4017 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
4019 if test $emacs_cv_freebsd_terminfo = yes; then
4020 LIBS_TERMCAP="-lncurses"
4023 LIBS_TERMCAP="-ltermcap"
4033 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
4035 LIBS_TERMCAP="-ltermcap"
4039 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
4041 ## hpux: Make sure we get select from libc rather than from libcurses
4042 ## because libcurses on HPUX 10.10 has a broken version of select.
4043 ## We used to use -lc -lcurses, but this may be cleaner.
4044 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
4045 # set that way, now it uses the default). Isn't this a contradiction?
4046 hpux*) LIBS_TERMCAP="-ltermcap" ;;
4050 TERMCAP_OBJ=tparam.o
4051 if test $TERMINFO = yes; then
4052 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
4053 TERMCAP_OBJ=terminfo.o
4055 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
4056 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
4058 AC_SUBST(LIBS_TERMCAP)
4059 AC_SUBST(TERMCAP_OBJ)
4061 # GNU/Linux-specific timer functions.
4062 AC_CACHE_CHECK([for timerfd interface], [emacs_cv_have_timerfd],
4064 [AC_LANG_PROGRAM([[#include <sys/timerfd.h>
4066 [[timerfd_create (CLOCK_REALTIME,
4067 TFD_CLOEXEC | TFD_NONBLOCK);
4068 timerfd_settime (0, TFD_TIMER_ABSTIME, 0, 0);]])],
4069 [emacs_cv_have_timerfd=yes],
4070 [emacs_cv_have_timerfd=no])])
4071 if test "$emacs_cv_have_timerfd" = yes; then
4072 AC_DEFINE([HAVE_TIMERFD], 1,
4073 [Define to 1 if timerfd functions are supported as in GNU/Linux.])
4076 # Alternate stack for signal handlers.
4077 AC_CACHE_CHECK([whether signals can be handled on alternate stack],
4078 [emacs_cv_alternate_stack],
4080 [AC_LANG_PROGRAM([[#include <signal.h>
4083 struct sigaction sa;
4084 ss.ss_sp = malloc (SIGSTKSZ);
4085 ss.ss_size = SIGSTKSZ;
4086 sa.sa_flags = SA_SIGINFO | SA_ONSTACK;
4087 sigaltstack (&ss, 0);
4088 sigaction (SIGSEGV, &sa, 0);]])],
4089 [emacs_cv_alternate_stack=yes],
4090 [emacs_cv_alternate_stack=no])])
4092 # Do we need the Hesiod library to provide the support routines?
4093 dnl FIXME? Should we be skipping this on Darwin too?
4096 if test "$with_hesiod" != no ; then
4097 # Don't set $LIBS here -- see comments above. FIXME which comments?
4099 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
4100 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
4101 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
4102 if test "$resolv" = yes ; then
4108 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
4109 hesiod=yes, :, $RESOLVLIB)])
4111 if test x"$hesiod" = xyes; then
4113 LIBRESOLV=$RESOLVLIB
4119 # These tell us which Kerberos-related libraries to use.
4126 if test "${with_kerberos}" != no; then
4128 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
4129 if test $have_com_err = yes; then
4130 COM_ERRLIB=-lcom_err
4131 LIBS="$COM_ERRLIB $LIBS"
4133 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
4134 if test $have_crypto = yes; then
4136 LIBS="$CRYPTOLIB $LIBS"
4138 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
4139 if test $have_k5crypto = yes; then
4140 CRYPTOLIB=-lk5crypto
4141 LIBS="$CRYPTOLIB $LIBS"
4143 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
4144 if test $have_krb5=yes; then
4146 LIBS="$KRB5LIB $LIBS"
4148 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
4149 if test "${with_kerberos5}" = no; then
4150 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
4151 if test $have_des425 = yes; then
4153 LIBS="$DESLIB $LIBS"
4155 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
4156 if test $have_des = yes; then
4158 LIBS="$DESLIB $LIBS"
4161 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
4162 if test $have_krb4 = yes; then
4164 LIBS="$KRB4LIB $LIBS"
4166 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
4167 if test $have_krb = yes; then
4169 LIBS="$KRB4LIB $LIBS"
4174 if test "${with_kerberos5}" != no; then
4175 AC_CHECK_HEADERS(krb5.h,
4176 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
4177 [#include <krb5.h>])])
4179 AC_CHECK_HEADERS(krb.h,,
4180 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
4181 [AC_CHECK_HEADERS(kerberos/krb.h)])])
4183 AC_CHECK_HEADERS(com_err.h)
4187 AC_SUBST(COM_ERRLIB)
4193 AC_CHECK_HEADERS(valgrind/valgrind.h)
4195 AC_CHECK_MEMBERS([struct unipair.unicode], [], [], [[#include <linux/kd.h>]])
4197 AC_CHECK_FUNCS_ONCE([sbrk])
4200 AC_CHECK_FUNC(socket, , ok_so_far=no)
4201 if test $ok_so_far = yes; then
4202 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
4204 if test $ok_so_far = yes; then
4205 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
4207 if test $ok_so_far = yes; then
4208 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
4209 AC_DEFINE(HAVE_INET_SOCKETS, 1,
4210 [Define to 1 if you have inet sockets.])
4215 AC_CHECK_FUNCS(snprintf)
4217 dnl Check for glib. This differs from other library checks in that
4218 dnl Emacs need not link to glib unless some other library is already
4219 dnl linking to glib. Although glib provides no facilities that Emacs
4220 dnl needs for its own purposes, when glib is present Emacs needs to
4221 dnl use primitives like g_main_context_query to avoid clashing with
4222 dnl glib at a low level.
4224 dnl Check this late, since it depends on $GTK_CFLAGS etc.
4228 CFLAGS="$CFLAGS $GTK_CFLAGS $RSVG_CFLAGS $DBUS_CFLAGS $SETTINGS_CFLAGS"
4229 LIBS="$LIBS $GTK_LIBS $RSVG_LIBS $DBUS_LIBS $SETTINGS_LIBS"
4230 CFLAGS="$CFLAGS $NOTIFY_CFLAGS $CAIRO_CFLAGS"
4231 LIBS="$LIBS $NOTIFY_LIBS $CAIRO_LIBS"
4232 AC_MSG_CHECKING([whether GLib is linked in])
4233 AC_LINK_IFELSE([AC_LANG_PROGRAM(
4236 [[g_print ("Hello world");]])],
4239 AC_MSG_RESULT([$links_glib])
4240 if test "${links_glib}" = "yes"; then
4241 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
4242 if test "$HAVE_NS" = no;then
4250 dnl Adapted from Haible's version.
4251 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
4252 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
4253 [[char* cs = nl_langinfo(CODESET);]])],
4254 emacs_cv_langinfo_codeset=yes,
4255 emacs_cv_langinfo_codeset=no)
4257 if test $emacs_cv_langinfo_codeset = yes; then
4258 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
4259 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
4264 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
4265 dnl how the tty code is related to POSIX and/or other versions of termios.
4266 dnl The following looks like a useful start.
4268 dnl AC_SYS_POSIX_TERMIOS
4269 dnl if test $ac_cv_sys_posix_termios = yes; then
4270 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
4271 dnl and macros for terminal control.])
4272 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
4275 dnl Turned on June 1996 supposing nobody will mind it.
4276 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
4277 if test "${opsys}" != "mingw32"; then
4278 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
4279 in the full name stands for the login id.])
4282 dnl Everybody supports this, except MS.
4283 dnl Seems like the kind of thing we should be testing for, though.
4284 ## Note: PTYs are broken on darwin <6. Use at your own risk.
4285 if test "${opsys}" != "mingw32"; then
4286 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
4289 dnl Everybody supports this, except MS-DOS.
4290 dnl Seems like the kind of thing we should be testing for, though.
4291 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
4292 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
4293 4.2-compatible sockets.])
4295 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
4297 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
4298 a null file, or a data sink.])
4299 if test "${opsys}" = "mingw32"; then
4300 AC_DEFINE(NULL_DEVICE, ["NUL:"])
4302 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
4305 if test "${opsys}" = "mingw32"; then
4310 AC_DEFINE_UNQUOTED(SEPCHAR, ['$SEPCHAR'], [Character that separates PATH elements.])
4311 dnl This is for MinGW, and is used in test/Makefile.in.
4312 dnl The MSYS Bash has heuristics for replacing ':' with ';' when it
4313 dnl decides that a command-line argument to be passed to a MinGW program
4314 dnl is a PATH-style list of directories. But that heuristics plays it
4315 dnl safe, and only does the replacement when it is _absolutely_ sure it
4316 dnl sees a colon-separated list of file names; e.g. ":." is left alone,
4317 dnl which breaks in-tree builds. So we do this manually instead.
4318 dnl Note that we cannot rely on PATH_SEPARATOR, as that one will always
4319 dnl be computed as ':' in MSYS Bash.
4322 dnl Everybody supports this, except MS-DOS.
4323 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
4325 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
4328 AC_DEFINE(DIRECTORY_SEP, ['/'],
4329 [Character that separates directories in a file name.])
4331 if test "${opsys}" = "mingw32"; then
4332 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
4333 [Returns true if character is a device separator.])
4335 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
4336 [Returns true if character is a directory separator.])
4338 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
4339 [Returns true if character is any form of separator.])
4341 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
4342 [Returns true if character is a device separator.])
4344 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
4345 [Returns true if character is a directory separator.])
4347 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
4348 [Returns true if character is any form of separator.])
4351 if test "$USE_X_TOOLKIT" != "none"; then
4355 dnl Assar Westerlund <assar@sics.se> says this is necessary
4356 dnl for HP-UX 10.20, and that it works for HP-UX 0 as well.
4360 if test "$have_editres" != no && test ! -z "$LIBXMU"; then
4362 dnl See libXmu.a check above.
4363 if test x$HAVE_X11XTR6 = xyes; then
4364 LIBS="-lXt -lSM -lICE $LIBXMU"
4366 OTHERLIBS="-lXt -$LIBXMU"
4369 [#include <X11/Intrinsic.h>
4370 #include <X11/Xmu/Editres.h>],
4371 [_XEditResCheckMessages (0, 0, 0, 0);],
4372 [AC_DEFINE([X_TOOLKIT_EDITRES], 1,
4373 [Define to 1 if we should use XEditRes.])])
4380 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
4381 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
4382 dnl need the constant to dimension an array. So wire in the appropriate
4384 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
4388 emacs_broken_SIGIO=no
4391 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
4392 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
4393 hpux* | nacl | openbsd | sol2* | unixware )
4394 emacs_broken_SIGIO=yes
4398 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
4399 dnl the way this system works, libc functions that return malloced
4400 dnl memory use the libc malloc implementation. Calling xfree or
4401 dnl xrealloc on the results of such functions results in a crash.
4403 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
4404 dnl but that does not currently work on this system.
4406 dnl It is possible to completely override the malloc implementation on
4407 dnl AIX, but that involves putting the malloc functions in a shared
4408 dnl library and setting the MALLOCTYPE environment variable to point to
4409 dnl that shared library.
4411 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
4412 dnl to avoid a crash just use the Emacs implementation for that function.
4414 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
4415 dnl of this file, so that we do not check for get_current_dir_name
4416 dnl on AIX. But that might be fragile if something else ends
4417 dnl up testing for get_current_dir_name as a dependency.
4418 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
4419 get_current_dir_name should not be used.])
4423 dnl Circumvent a bug in FreeBSD. In the following sequence of
4424 dnl writes/reads on a PTY, read(2) returns bogus data:
4426 dnl write(2) 1022 bytes
4427 dnl write(2) 954 bytes, get EAGAIN
4428 dnl read(2) 1024 bytes in process_read_output
4429 dnl read(2) 11 bytes in process_read_output
4431 dnl That is, read(2) returns more bytes than have ever been written
4432 dnl successfully. The 1033 bytes read are the 1022 bytes written
4433 dnl successfully after processing (for example with CRs added if the
4434 dnl terminal is set up that way which it is here). The same bytes will
4435 dnl be seen again in a later read(2), without the CRs.
4436 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
4437 work around an issue when reading from a PTY.])
4443 dnl FIXME Can't we test if this exists (eg /proc/$$)?
4444 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
4449 darwin | dragonfly | freebsd | netbsd | openbsd )
4450 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
4451 close a pty to make it a controlling terminal (it is already a
4452 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
4456 dnl FIXME Surely we can test for this rather than hard-code it.
4458 netbsd | openbsd) sound_device="/dev/audio" ;;
4459 *) sound_device="/dev/dsp" ;;
4463 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
4464 [Name of the default sound device.])
4467 dnl Emacs can read input using SIGIO and buffering characters itself,
4468 dnl or using CBREAK mode and making C-g cause SIGINT.
4469 dnl The choice is controlled by the variable interrupt_input.
4471 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
4473 dnl Emacs uses the presence of the USABLE_SIGIO macro
4474 dnl to indicate whether or not signal-driven I/O is possible. It uses
4475 dnl INTERRUPT_INPUT to decide whether to use it by default.
4477 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
4478 dnl CBREAK mode has two disadvantages
4479 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
4480 dnl I hear that in system V this problem does not exist.
4481 dnl 2) Control-G causes output to be discarded.
4482 dnl I do not know whether this can be fixed in system V.
4484 dnl Another method of doing input is planned but not implemented.
4485 dnl It would have Emacs fork off a separate process
4486 dnl to read the input and send it to the true Emacs process
4489 darwin | gnu-linux | gnu-kfreebsd )
4490 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
4495 dnl If the system's imake configuration file defines 'NeedWidePrototypes'
4496 dnl as 'NO', we must define NARROWPROTO manually. Such a define is
4497 dnl generated in the Makefile generated by 'xmkmf'. If we don't define
4498 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
4499 dnl taking float or double parameters.
4501 cygwin|gnu|gnu-linux|gnu-kfreebsd|freebsd|netbsd|openbsd)
4502 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
4503 file defines 'NeedWidePrototypes' as 'NO'.])
4508 dnl Used in process.c, this must be a loop, even if it only runs once.
4509 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
4510 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
4511 dnl trying suffixes 0-16.
4512 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
4513 first PTY, if PTYs are supported.])
4514 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
4515 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
4516 end of a PTY, if non-standard.])
4517 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
4518 end of a PTY, if non-standard.])
4522 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4523 dnl You allocate a pty by opening /dev/ptc to get the master side.
4524 dnl To get the name of the slave side, you just ttyname() the master side.
4525 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4526 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4530 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4531 dnl multi-line AC_DEFINEs are hard. :(
4532 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)])
4533 AC_DEFINE(PTY_NAME_SPRINTF, [])
4534 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4538 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4541 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd | darwin | nacl )
4543 if test "x$ac_cv_func_grantpt" = xyes; then
4544 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4545 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4546 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4547 dnl to prevent sigchld_handler from intercepting the child's death.
4548 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); }])
4549 dnl if HAVE_POSIX_OPENPT
4550 if test "x$ac_cv_func_posix_openpt" = xyes; then
4551 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (false)])
4552 AC_DEFINE(PTY_NAME_SPRINTF, [])
4554 elif test "x$ac_cv_func_getpt" = xyes; then
4555 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4556 AC_DEFINE(PTY_NAME_SPRINTF, [])
4558 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4561 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4566 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4567 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4568 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4572 dnl On SysVr4, grantpt(3) forks a subprocess, so do not use
4573 dnl O_CLOEXEC when opening the pty, and keep the SIGCHLD handler
4574 dnl from intercepting that death. If any child but grantpt's should die
4575 dnl within, it should be caught after sigrelse(2).
4576 AC_DEFINE(PTY_OPEN, [fd = open (pty_name, O_RDWR | O_NONBLOCK)])
4577 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); }])
4581 dnl Comments are as per sol2*.
4582 AC_DEFINE(PTY_OPEN, [fd = open (pty_name, O_RDWR | O_NONBLOCK)])
4583 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); }])
4590 dnl This change means that we don't loop through allocate_pty too
4591 dnl many times in the (rare) event of a failure.
4592 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4593 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4594 dnl Push various streams modules onto a PTY channel. Used in process.c.
4595 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.])
4600 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4601 "typing" a signal character on the pty.])
4604 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4605 aix4-2 | cygwin | gnu | dragonfly | freebsd | netbsd | openbsd | darwin )
4606 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4609 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4610 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4611 gnu-linux | gnu-kfreebsd )
4613 AC_MSG_CHECKING([for signals via characters])
4614 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4615 #include <linux/version.h>
4616 #if LINUX_VERSION_CODE < 0x20400
4617 # error "Linux version too old"
4619 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4621 AC_MSG_RESULT([$emacs_signals_via_chars])
4622 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4627 AH_TEMPLATE(TAB3, [Undocumented.])
4630 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4632 gnu | dragonfly | freebsd | netbsd | openbsd )
4633 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4634 AC_DEFINE(TAB3, OXTABS)
4637 gnu-linux | gnu-kfreebsd )
4638 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4642 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4643 [do { extern void *__libc_ia64_register_backing_store_base; __builtin_ia64_flushrs (); mark_memory (__libc_ia64_register_backing_store_base, __builtin_ia64_bsp ());} while (false)],
4644 [Mark a secondary stack, like the register stack on the ia64.]), [])
4648 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4649 run_time_remap; for HPUX.])
4654 dnl This won't be used automatically yet. We also need to know, at least,
4655 dnl that the stack is continuous.
4656 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4657 registers relevant for conservative garbage collection in the jmp_buf.])
4661 dnl Not all the architectures are tested, but there are Debian packages
4662 dnl for SCM and/or Guile on them, so the technique must work. See also
4663 dnl comments in alloc.c concerning setjmp and gcc.
4664 dnl Fixme: it's probably safe to just use the GCC conditional below.
4665 gnu-linux | gnu-kfreebsd )
4666 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4667 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4668 || defined __alpha__ || defined __mips__ || defined __s390__ \
4669 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4670 || defined __ia64__ || defined __sh__
4673 # error "setjmp not known to work on this arch"
4675 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4680 if test x$GCC = xyes; then
4681 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4682 AC_DEFINE(GC_SETJMP_WORKS, 1)
4685 aix* | dragonfly | freebsd | netbsd | openbsd | sol2* )
4686 AC_DEFINE(GC_SETJMP_WORKS, 1)
4691 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4692 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4695 [[#include <setjmp.h>
4697 # define _longjmp longjmp
4702 _longjmp (j, 1);]])],
4703 [emacs_cv_func__setjmp=yes],
4704 [emacs_cv_func__setjmp=no])])
4705 if test $emacs_cv_func__setjmp = yes; then
4706 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4709 # We need to preserve signal mask to handle C stack overflows.
4710 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4713 [[#include <setjmp.h>
4716 if (! sigsetjmp (j, 1))
4717 siglongjmp (j, 1);]])],
4718 [emacs_cv_func_sigsetjmp=yes],
4719 [emacs_cv_func_sigsetjmp=no])])
4720 if test $emacs_cv_func_sigsetjmp = yes; then
4721 AC_DEFINE([HAVE_SIGSETJMP], 1,
4722 [Define to 1 if sigsetjmp and siglongjmp work.])
4725 case $emacs_cv_func_sigsetjmp,$emacs_cv_alternate_stack,$opsys in
4726 yes,yes,* | *,*,mingw32)
4727 AC_DEFINE([HAVE_STACK_OVERFLOW_HANDLING], 1,
4728 [Define to 1 if C stack overflow can be handled in some cases.]);;
4733 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4734 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4735 dnl and this is all we need.
4736 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4743 dnl Used in xfaces.c.
4744 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4745 some systems, where it requires time.h.])
4750 dnl Define symbols to identify the version of Unix this is.
4751 dnl Define all the symbols that apply correctly.
4752 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4753 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4754 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4755 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4760 dnl This symbol should be defined on AIX Version 3 ???????
4761 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4763 # error "_AIX not defined"
4765 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4769 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4773 dnl Not __APPLE__, as this may not be defined on non-macOS Darwin.
4774 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4775 dnl distinguish macOS from pure Darwin.
4776 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4779 gnu-linux | gnu-kfreebsd )
4781 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4786 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4790 AC_DEFINE(DOS_NT, [])
4791 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4792 if test "x$ac_enable_checking" != "x" ; then
4793 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4799 AC_DEFINE(USG5_4, [])
4800 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4805 AC_DEFINE(USG5_4, [])
4809 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4812 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4813 emacs_cv_usable_FIONREAD=no
4817 emacs_cv_usable_FIONREAD=yes
4822 [AC_LANG_PROGRAM([[#include <sys/types.h>
4823 #include <sys/ioctl.h>
4825 # include <sys/filio.h>
4828 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4829 [emacs_cv_usable_FIONREAD=yes],
4830 [emacs_cv_usable_FIONREAD=no])
4833 if test $emacs_cv_usable_FIONREAD = yes; then
4834 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4836 if test $emacs_broken_SIGIO = no; then
4837 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4839 [AC_LANG_PROGRAM([[#include <fcntl.h>
4842 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4843 [emacs_cv_usable_SIGIO=yes],
4844 [emacs_cv_usable_SIGIO=no])],
4845 [emacs_cv_usable_SIGIO=yes],
4846 [emacs_cv_usable_SIGIO=no])
4847 if test $emacs_cv_usable_SIGIO = yes; then
4848 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4855 dnl It works to open the pty's tty in the parent (Emacs), then
4856 dnl close and reopen it in the child.
4857 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4858 works to open a pty's tty in the parent process, then close and
4859 reopen it in the child.])
4863 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4868 # Set up the CFLAGS for real compilation, so we can substitute it.
4869 CFLAGS="$REAL_CFLAGS"
4870 CPPFLAGS="$REAL_CPPFLAGS"
4873 ## Hack to detect a buggy GCC version.
4874 if test "$GCC" = yes && \
4875 $CC --version 2> /dev/null | grep 'gcc.* 4.5.0' >/dev/null; then
4877 *-fno-optimize-sibling-calls*) ;;
4879 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS.]);;
4883 version=$PACKAGE_VERSION
4885 copyright="Copyright (C) 2017 Free Software Foundation, Inc."
4886 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4887 [Short copyright string for this version of Emacs.])
4890 ### Specify what sort of things we'll be editing into Makefile and config.h.
4891 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4893 AC_SUBST(configuration)
4898 AC_SUBST(exec_prefix)
4901 AC_SUBST(sharedstatedir)
4902 AC_SUBST(libexecdir)
4906 AC_SUBST(standardlisppath)
4907 AC_SUBST(locallisppath)
4909 AC_SUBST(x_default_search_path)
4911 AC_SUBST(archlibdir)
4917 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4918 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4919 ## end of LIBX_BASE, but nothing ever set it.
4920 AC_SUBST(LD_SWITCH_X_SITE)
4921 AC_SUBST(C_SWITCH_X_SITE)
4922 AC_SUBST(GNUSTEP_CFLAGS)
4924 ## Used in lwlib/Makefile.in.
4925 AC_SUBST(X_TOOLKIT_TYPE)
4927 AC_SUBST(ns_appbindir)
4928 AC_SUBST(ns_appresdir)
4930 AC_SUBST(GNU_OBJC_CFLAGS)
4931 AC_SUBST(OTHER_FILES)
4933 if test -n "${term_header}"; then
4934 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4935 [Define to the header for the built-in window system.])
4938 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4939 [Define to the canonical Emacs configuration name.])
4940 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4941 [Define to the options passed to configure.])
4946 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4947 AC_DEFINE(HAVE_X_WINDOWS, 1,
4948 [Define to 1 if you want to use the X window system.])
4950 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4952 if test "$HAVE_CAIRO" = "yes"; then
4953 FONT_OBJ="ftfont.o ftcrfont.o"
4954 elif test "$HAVE_XFT" = "yes"; then
4955 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4956 elif test "$HAVE_FREETYPE" = "yes"; then
4957 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4967 if test "${USE_X_TOOLKIT}" != "none" ; then
4969 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4970 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4971 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4972 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4973 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4977 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4978 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4982 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4983 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4984 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4988 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4989 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4992 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4995 AC_SUBST(WIDGET_OBJ)
4998 case "$USE_X_TOOLKIT" in
4999 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
5000 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
5001 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
5003 if test "$HAVE_XWIDGETS" = "yes"; then
5004 TOOLKIT_LIBW="$TOOLKIT_LIBW -lXcomposite"
5006 AC_SUBST(TOOLKIT_LIBW)
5008 if test "${opsys}" != "mingw32"; then
5009 if test "$USE_X_TOOLKIT" = "none"; then
5010 LIBXT_OTHER="\$(LIBXSM)"
5012 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
5015 AC_SUBST(LIBXT_OTHER)
5017 if test "${HAVE_X11}" = "yes" ; then
5018 AC_DEFINE(HAVE_X11, 1,
5019 [Define to 1 if you want to use version 11 of X windows.])
5020 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
5024 AC_SUBST(LIBX_OTHER)
5026 if test "$HAVE_GTK" = yes || test "$HAVE_X11" != yes; then
5028 elif test "$USE_X_TOOLKIT" = none; then
5029 LIBXMENU='$(oldXMenudir)/libXMenu11.a'
5030 AUTODEPEND_PARENTS="$AUTODEPEND_PARENTS oldXMenu"
5032 LIBXMENU='$(lwlibdir)/liblw.a'
5033 AUTODEPEND_PARENTS="$AUTODEPEND_PARENTS lwlib"
5037 AC_CACHE_CHECK([for struct alignment],
5038 [emacs_cv_struct_alignment],
5040 [AC_LANG_PROGRAM([[#include <stddef.h>
5041 struct __attribute__ ((aligned (8))) s { char c; };
5042 struct t { char c; struct s s; };
5043 char verify[offsetof (struct t, s) == 8 ? 1 : -1];
5045 [emacs_cv_struct_alignment=yes],
5046 [emacs_cv_struct_alignment=no])])
5047 if test "$emacs_cv_struct_alignment" = yes; then
5048 AC_DEFINE([HAVE_STRUCT_ATTRIBUTE_ALIGNED], 1,
5049 [Define to 1 if 'struct __attribute__ ((aligned (N)))' aligns the
5050 structure to an N-byte boundary.])
5053 if test "${GNU_MALLOC}" = "yes" ; then
5054 AC_DEFINE(GNU_MALLOC, 1,
5055 [Define to 1 if you want to use the GNU memory allocator.])
5059 if test "${REL_ALLOC}" = "yes" ; then
5060 AC_DEFINE(REL_ALLOC, 1,
5061 [Define REL_ALLOC if you want to use the relocating allocator for
5064 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
5066 AC_SUBST(RALLOC_OBJ)
5068 if test "$opsys" = "cygwin"; then
5069 CYGWIN_OBJ="cygw32.o"
5070 ## Cygwin differs because of its unexec().
5072 POST_ALLOC_OBJ=lastfile.o
5073 elif test "$opsys" = "mingw32"; then
5076 POST_ALLOC_OBJ=lastfile.o
5079 PRE_ALLOC_OBJ=lastfile.o
5082 AC_SUBST(CYGWIN_OBJ)
5083 AC_SUBST(PRE_ALLOC_OBJ)
5084 AC_SUBST(POST_ALLOC_OBJ)
5086 dnl Call this 'FORTIFY_SOUR' so that it sorts before the 'FORTIFY_SOURCE'
5087 dnl verbatim defined above. The tricky name is apropos, as this hack
5088 dnl makes Fortify go sour!
5089 AH_VERBATIM([FORTIFY_SOUR],
5090 [/* Without the following workaround, Emacs runs slowly on OS X 10.8.
5091 The workaround disables some useful run-time checking, so it
5092 should be conditional to the platforms with the performance bug.
5093 Perhaps Apple will fix this some day; also see m4/extern-inline.m4. */
5094 #if defined __APPLE__ && defined __GNUC__
5095 # ifndef _DONT_USE_CTYPE_INLINE_
5096 # define _DONT_USE_CTYPE_INLINE_
5098 # ifndef _FORTIFY_SOURCE
5099 # define _FORTIFY_SOURCE 0
5104 # If user asks to omit features, disable optional features that gnulib
5105 # might otherwise enable.
5106 if test "$with_features" = no && test "$enable_acl" != yes; then
5110 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
5111 # it temporarily reverts them to their pre-pkg-config values,
5112 # because gnulib needs to work with both src (which uses the
5113 # pkg-config stuff) and lib-src (which does not). For example, gnulib
5114 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
5115 # and it therefore needs to run in an environment where LIBS does not
5116 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
5117 # for some package unrelated to lib-src.
5120 CFLAGS=$pre_PKG_CONFIG_CFLAGS
5121 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
5122 gl_ASSERT_NO_GNULIB_POSIXCHECK
5123 gl_ASSERT_NO_GNULIB_TESTS
5128 if test "${opsys}" = "mingw32"; then
5129 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I \${abs_top_srcdir}/nt/inc"
5130 # Remove unneeded switches from the value of CC that goes to Makefiles
5131 CC=`AS_ECHO(["$CC"]) | sed -e "s,$GCC_TEST_OPTIONS,,"`
5135 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
5137 cygwin) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000" ;;
5140 ## The -headerpad option tells ld (see man page) to leave room at the
5141 ## end of the header for adding load commands. Needed for dumping.
5142 ## 0x1000 is enough for roughly 52 load commands on the x86_64
5143 ## architecture (where they are 78 bytes each). The actual number of
5144 ## load commands added is not consistent but normally ranges from
5145 ## about 14 to about 34. Setting it high gets us plenty of slop and
5146 ## only costs about 1.5K of wasted binary space.
5147 headerpad_extra=1000
5148 if test "$HAVE_NS" = "yes"; then
5149 libs_nsgui="-framework AppKit"
5150 if test "$NS_IMPL_COCOA" = "yes"; then
5151 libs_nsgui="$libs_nsgui -framework IOKit"
5156 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
5158 ## This is here because src/Makefile.in did some extra fiddling around
5159 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
5160 ## LD_SWITCH_SYSTEM_TEMACS instead,
5161 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
5162 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
5165 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
5166 ## find X at run-time.
5167 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
5168 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
5169 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
5170 ## had different values in configure (in ac_link) and src/Makefile.in.
5171 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
5172 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
5175 ## Is it any better under MinGW64 to relocate emacs into higher addresses?
5176 case "$canonical" in
5177 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x400000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
5178 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
5182 *) LD_SWITCH_SYSTEM_TEMACS= ;;
5185 # -no-pie or -nopie fixes a temacs segfault on Gentoo, OpenBSD,
5186 # Ubuntu, and other systems with "hardened" GCC configurations for
5187 # some reason (Bug#18784). We don't know why this works, but not
5188 # segfaulting is better than segfaulting. Use ac_c_werror_flag=yes
5189 # when trying the option, otherwise clang keeps warning that it does
5190 # not understand it, and pre-4.6 GCC has a similar problem
5191 # (Bug#20338). Prefer -no-pie to -nopie, as -no-pie is the
5192 # spelling used by GCC 6.1.0 and later (Bug#24682).
5194 [for $CC option to disable position independent executables],
5195 [emacs_cv_prog_cc_no_pie],
5196 [emacs_save_c_werror_flag=$ac_c_werror_flag
5197 emacs_save_LDFLAGS=$LDFLAGS
5198 ac_c_werror_flag=yes
5199 for emacs_cv_prog_cc_no_pie in -no-pie -nopie no; do
5200 test $emacs_cv_prog_cc_no_pie = no && break
5201 LDFLAGS="$emacs_save_LDFLAGS $emacs_cv_prog_cc_no_pie"
5202 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], [break])
5204 ac_c_werror_flag=$emacs_save_c_werror_flag
5205 LDFLAGS=$emacs_save_LDFLAGS])
5206 if test "$emacs_cv_prog_cc_no_pie" != no; then
5207 LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS $emacs_cv_prog_cc_no_pie"
5210 if test x$ac_enable_profiling != x ; then
5212 *freebsd | gnu-linux) ;;
5213 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
5217 LD_SWITCH_SYSTEM_TEMACS="$LDFLAGS_NOCOMBRELOC $LD_SWITCH_SYSTEM_TEMACS"
5219 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
5221 ## Common for all window systems
5222 if test "$window_system" != "none"; then
5223 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
5224 AC_DEFINE(POLL_FOR_INPUT, 1, [Define if you poll periodically to detect C-g.])
5225 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
5228 AC_SUBST(WINDOW_SYSTEM_OBJ)
5230 AH_TOP([/* GNU Emacs site configuration template file.
5232 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2017
5233 Free Software Foundation, Inc.
5235 This file is part of GNU Emacs.
5237 GNU Emacs is free software: you can redistribute it and/or modify
5238 it under the terms of the GNU General Public License as published by
5239 the Free Software Foundation, either version 3 of the License, or (at
5240 your option) any later version.
5242 GNU Emacs is distributed in the hope that it will be useful,
5243 but WITHOUT ANY WARRANTY; without even the implied warranty of
5244 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
5245 GNU General Public License for more details.
5247 You should have received a copy of the GNU General Public License
5248 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
5251 /* No code in Emacs #includes config.h twice, but some bits of code
5252 intended to work with other packages as well (like gmalloc.c)
5253 think they can include it as many times as they like. */
5254 #ifndef EMACS_CONFIG_H
5255 #define EMACS_CONFIG_H
5258 AH_BOTTOM([#include <conf_post.h>
5260 #endif /* EMACS_CONFIG_H */
5269 #### Report on what we decided to do.
5270 #### Report GTK as a toolkit, even if it doesn't use Xt.
5271 #### It makes printing result more understandable as using GTK sets
5272 #### toolkit_scroll_bars to yes by default.
5273 if test "${HAVE_GTK}" = "yes"; then
5274 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
5277 if test $USE_ACL -ne 0; then
5278 ACL_SUMMARY="yes $LIB_ACL"
5283 emacs_standard_dirs='Standard dirs'
5285 Configured for '${canonical}'.
5287 Where should the build process find the source code? ${srcdir}
5288 What compiler should emacs be built with? ${CC} ${CFLAGS}
5289 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
5290 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
5291 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
5292 What window system should Emacs use? ${window_system}
5293 What toolkit should Emacs use? ${USE_X_TOOLKIT}
5294 Where do we find X Windows header files? ${x_includes:-$emacs_standard_dirs}
5295 Where do we find X Windows libraries? ${x_libraries:-$emacs_standard_dirs}"])
5298 emacs_config_features=
5299 for opt in XAW3D XPM JPEG TIFF GIF PNG RSVG CAIRO IMAGEMAGICK SOUND GPM DBUS \
5300 GCONF GSETTINGS NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT \
5301 LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS X_TOOLKIT X11 NS MODULES \
5302 XWIDGETS LIBSYSTEMD CANNOT_DUMP; do
5305 CANNOT_DUMP) eval val=\${$opt} ;;
5306 NOTIFY|ACL) eval val=\${${opt}_SUMMARY} ;;
5307 TOOLKIT_SCROLL_BARS|X_TOOLKIT) eval val=\${USE_$opt} ;;
5308 *) eval val=\${HAVE_$opt} ;;
5311 xno|xnone|x) continue ;;
5316 GTK*|LUCID|MOTIF) opt=$val ;;
5321 AS_VAR_APPEND([emacs_config_features], ["$optsep$opt"])
5324 AC_DEFINE_UNQUOTED(EMACS_CONFIG_FEATURES, "${emacs_config_features}",
5325 [Summary of some of the main features enabled by configure.])
5327 AS_ECHO([" Does Emacs use -lXaw3d? ${HAVE_XAW3D}
5328 Does Emacs use -lXpm? ${HAVE_XPM}
5329 Does Emacs use -ljpeg? ${HAVE_JPEG}
5330 Does Emacs use -ltiff? ${HAVE_TIFF}
5331 Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF
5332 Does Emacs use a png library? ${HAVE_PNG} $LIBPNG
5333 Does Emacs use -lrsvg-2? ${HAVE_RSVG}
5334 Does Emacs use cairo? ${HAVE_CAIRO}
5335 Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}
5336 Does Emacs support sound? ${HAVE_SOUND}
5337 Does Emacs use -lgpm? ${HAVE_GPM}
5338 Does Emacs use -ldbus? ${HAVE_DBUS}
5339 Does Emacs use -lgconf? ${HAVE_GCONF}
5340 Does Emacs use GSettings? ${HAVE_GSETTINGS}
5341 Does Emacs use a file notification library? ${NOTIFY_SUMMARY}
5342 Does Emacs use access control lists? ${ACL_SUMMARY}
5343 Does Emacs use -lselinux? ${HAVE_LIBSELINUX}
5344 Does Emacs use -lgnutls? ${HAVE_GNUTLS}
5345 Does Emacs use -lxml2? ${HAVE_LIBXML2}
5346 Does Emacs use -lfreetype? ${HAVE_FREETYPE}
5347 Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}
5348 Does Emacs use -lotf? ${HAVE_LIBOTF}
5349 Does Emacs use -lxft? ${HAVE_XFT}
5350 Does Emacs use -lsystemd? ${HAVE_LIBSYSTEMD}
5351 Does Emacs directly use zlib? ${HAVE_ZLIB}
5352 Does Emacs have dynamic modules support? ${HAVE_MODULES}
5353 Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}
5354 Does Emacs support Xwidgets (requires gtk3)? ${HAVE_XWIDGETS}
5355 Does Emacs have threading support in lisp? ${threads_enabled}
5358 if test -n "${EMACSDATA}"; then
5359 AS_ECHO([" Environment variable EMACSDATA set to: $EMACSDATA"])
5361 if test -n "${EMACSDOC}"; then
5362 AS_ECHO([" Environment variable EMACSDOC set to: $EMACSDOC"])
5367 if test "$HAVE_NS" = "yes"; then
5369 AS_ECHO(["You must run \"${MAKE-make} install\" in order to test the built application.
5370 The installed application will go to nextstep/Emacs.app and can be
5371 run or moved from there."])
5372 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
5373 echo "The application will be fully self-contained."
5375 AS_ECHO(["The lisp resources for the application will be installed under ${prefix}.
5376 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
5377 to run if these resources are not installed."])
5382 if test "${opsys}" = "cygwin"; then
5384 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
5390 # Remove any trailing slashes in these variables.
5392 */) prefix=`AS_DIRNAME(["$prefix."])`;;
5394 case $exec_prefix in
5395 */) exec_prefix=`AS_DIRNAME(["$exec_prefix."])`;;
5398 if test "$HAVE_NS" = "yes"; then
5399 if test "$NS_IMPL_GNUSTEP" = yes; then
5400 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
5401 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
5402 ns_check_file=Resources/Info-gnustep.plist
5404 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
5405 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
5406 ns_check_file=Contents/Info.plist
5408 AC_SUBST(ns_check_file)
5411 AC_CONFIG_FILES([Makefile lib/gnulib.mk])
5413 dnl config.status treats $srcdir specially, so I think this is ok...
5414 AC_CONFIG_FILES([$srcdir/doc/man/emacs.1])
5416 m4_define([subdir_makefiles],
5417 [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])
5418 SUBDIR_MAKEFILES="subdir_makefiles"
5419 AC_CONFIG_FILES(subdir_makefiles)
5421 dnl test/ is not present in release tarfiles.
5422 opt_makefile=test/Makefile
5424 if test -f "$srcdir/$opt_makefile.in"; then
5425 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
5426 dnl Again, it's best not to use a variable. Though you can add
5427 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
5428 AC_CONFIG_FILES([test/Makefile])
5432 dnl The admin/ directory used to be excluded from tarfiles.
5433 if test -d $srcdir/admin; then
5434 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES admin/charsets/Makefile admin/unidata/Makefile admin/grammars/Makefile"
5435 AC_CONFIG_FILES([admin/charsets/Makefile])
5436 AC_CONFIG_FILES([admin/unidata/Makefile])
5437 AC_CONFIG_FILES([admin/grammars/Makefile])
5441 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
5443 AC_SUBST(SUBDIR_MAKEFILES_IN)
5445 dnl You might wonder (I did) why epaths.h is generated by running make,
5446 dnl rather than just letting configure generate it from epaths.in.
5447 dnl One reason is that the various paths are not fully expanded (see above);
5448 dnl e.g., gamedir='${localstatedir}/games/emacs'.
5449 dnl Secondly, the GNU Coding standards require that one should be able
5450 dnl to run 'make prefix=/some/where/else' and override the values set
5451 dnl by configure. This also explains the 'move-if-change' test and
5452 dnl the use of force in the 'epaths-force' rule in Makefile.in.
5453 AC_CONFIG_COMMANDS([src/epaths.h], [
5454 if test "${opsys}" = "mingw32"; then
5455 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
5457 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
5458 fi || AC_MSG_ERROR(['src/epaths.h' could not be made.])
5459 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
5461 dnl NB we have to cheat and use the ac_... version because abs_top_srcdir
5462 dnl is not yet set, sigh. Or we could use ../$srcdir/src/.gdbinit,
5464 AC_CONFIG_COMMANDS([src/.gdbinit], [
5465 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
5466 AS_ECHO(["source $ac_abs_top_srcdir/src/.gdbinit"]) > src/.gdbinit
5470 dnl Perhaps this would be better named doc-emacs-emacsver.texi?
5471 dnl See comments for etc-refcards-emacsver.tex.
5472 dnl Since we get a doc/emacs directory generated anyway, for the Makefile,
5473 dnl it is not quite the same. But we are generating in $srcdir.
5474 AC_CONFIG_COMMANDS([doc/emacs/emacsver.texi], [
5475 ${MAKE-make} -s --no-print-directory -C doc/emacs doc-emacsver || \
5476 AC_MSG_ERROR(['doc/emacs/emacsver.texi' could not be made.])
5479 dnl If we give this the more natural name, etc/refcards/emacsver.texi,
5480 dnl then a directory etc/refcards is created in the build directory,
5481 dnl which is probably harmless, but confusing (in out-of-tree builds).
5482 dnl (If we were to generate etc/refcards/Makefile, this might change.)
5483 dnl It is really $srcdir/etc/refcards/emacsver.tex that we generate.
5484 AC_CONFIG_COMMANDS([etc-refcards-emacsver.tex], [
5485 ${MAKE-make} -s MAKEFILE_NAME=do-not-make-Makefile etc-emacsver || \
5486 AC_MSG_ERROR(['etc/refcards/emacsver.tex' could not be made.])
5489 if test $AUTO_DEPEND = yes; then
5490 for dir in $AUTODEPEND_PARENTS; do
5491 AS_MKDIR_P([$dir/deps])
5497 if test ! "$with_mailutils"; then
5498 if test "$with_pop" = yes; then
5499 AC_MSG_WARN([This configuration installs a 'movemail' program
5500 that retrieves POP3 email via only insecure channels.
5501 To omit insecure POP3, you can use '$0 --without-pop'.])
5506 # Don't suggest GNU Mailutils, as it hasn't been ported.
5509 emacs_fix_movemail="use '$0 --with-mailutils'"
5510 case `(movemail --version) 2>/dev/null` in
5512 *) emacs_fix_movemail="install GNU Mailutils
5513 <http://mailutils.org> and $emacs_fix_movemail";;
5515 AC_MSG_NOTICE([You might want to $emacs_fix_movemail.]);;
5519 test "$MAKE" = make || AC_MSG_NOTICE([Now you can run '$MAKE'.])